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gtk2/gdk/win32/gdksurface-win32.c
Chun-wei Fan d7d4fed0f3 gdk/win32: Fix window display and resizing 
Have an implementation of ->request_layout() and ->compute_size() for the Win32
surface backend so that we can properly display and move and resize the
windows, as we request from the Win32 APIs.

Hxndling Aerosnap properly is mostly done except for snap_up(), which needs to
to be looked at later.
2021-01-11 17:55:25 +08:00

5312 lines
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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
* Copyright (C) 1998-2004 Tor Lillqvist
* Copyright (C) 2001-2011 Hans Breuer
* Copyright (C) 2007-2009 Cody Russell
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <stdlib.h>
#include "gdk.h"
#include "gdksurfaceprivate.h"
#include "gdktoplevelprivate.h"
#include "gdkpopupprivate.h"
#include "gdkdragsurfaceprivate.h"
#include "gdkprivate-win32.h"
#include "gdkdeviceprivate.h"
#include "gdkdevicemanager-win32.h"
#include "gdkenumtypes.h"
#include "gdkwin32.h"
#include "gdkdisplayprivate.h"
#include "gdkframeclockidleprivate.h"
#include "gdkmonitorprivate.h"
#include "gdkwin32surface.h"
#include "gdkwin32cursor.h"
#include "gdkglcontext-win32.h"
#include "gdkdisplay-win32.h"
#include "gdkdevice-win32.h"
#include "gdkcairocontext-win32.h"
#include <cairo-win32.h>
#include <dwmapi.h>
#include <math.h>
static void gdk_surface_win32_finalize (GObject *object);
static void compute_toplevel_size (GdkSurface *surface,
gboolean update_geometry,
int *width,
int *height);
static gpointer parent_class = NULL;
static GSList *modal_window_stack = NULL;
typedef struct _FullscreenInfo FullscreenInfo;
struct _FullscreenInfo
{
RECT r;
guint hint_flags;
LONG style;
};
struct _AeroSnapEdgeRegion
{
/* The rectangle along the edge of the desktop
* that allows application of the snap transformation.
*/
GdkRectangle edge;
/* A subregion of the "edge". When the pointer hits
* this region, the transformation is revealed.
* Usually it is 1-pixel thick and is located at the
* very edge of the screen. When there's a toolbar
* at that edge, the "trigger" and the "edge" regions
* are extended to cover that toolbar.
*/
GdkRectangle trigger;
};
typedef struct _AeroSnapEdgeRegion AeroSnapEdgeRegion;
/* Size of the regions at the edges of the desktop where
* snapping can take place (in pixels)
*/
#define AEROSNAP_REGION_THICKNESS (20)
/* Size of the subregions that actually trigger the snapping prompt
* (in pixels).
*/
#define AEROSNAP_REGION_TRIGGER_THICKNESS (1)
/* The gap between the snap indicator and the edge of the work area
* (in pixels).
*/
#define AEROSNAP_INDICATOR_EDGE_GAP (10)
/* Width of the outline of the snap indicator
* (in pixels).
*/
#define AEROSNAP_INDICATOR_LINE_WIDTH (3.0)
/* Corner radius of the snap indicator.
*/
#define AEROSNAP_INDICATOR_CORNER_RADIUS (3.0)
/* The time it takes for snap indicator to expand/shrink
* from current window size to future position of the
* snapped window (in microseconds).
*/
#define AEROSNAP_INDICATOR_ANIMATION_DURATION (200 * 1000)
/* Opacity if the snap indicator. */
#define AEROSNAP_INDICATOR_OPACITY (0.5)
/* The interval between snap indicator redraws (in milliseconds).
* 16 is ~ 1/60 of a second, for ~60 FPS.
*/
#define AEROSNAP_INDICATOR_ANIMATION_TICK (16)
static void gdk_win32_impl_frame_clock_after_paint (GdkFrameClock *clock,
GdkSurface *surface);
G_DEFINE_TYPE (GdkWin32Surface, gdk_win32_surface, GDK_TYPE_SURFACE)
GType gdk_win32_toplevel_get_type (void) G_GNUC_CONST;
GType gdk_win32_popup_get_type (void) G_GNUC_CONST;
GType gdk_win32_drag_surface_get_type (void) G_GNUC_CONST;
#define GDK_TYPE_WIN32_TOPLEVEL (gdk_win32_toplevel_get_type ())
#define GDK_TYPE_WIN32_POPUP (gdk_win32_popup_get_type ())
#define GDK_TYPE_WIN32_DRAG_SURFACE (gdk_win32_drag_surface_get_type ())
static void
gdk_win32_surface_init (GdkWin32Surface *impl)
{
impl->hicon_big = NULL;
impl->hicon_small = NULL;
impl->hint_flags = 0;
impl->transient_owner = NULL;
impl->transient_children = NULL;
impl->num_transients = 0;
impl->changing_state = FALSE;
impl->surface_scale = 1;
}
static void
gdk_surface_win32_dispose (GObject *object)
{
GdkWin32Surface *surface;
g_return_if_fail (GDK_IS_WIN32_SURFACE (object));
surface = GDK_WIN32_SURFACE (object);
g_clear_object (&surface->cursor);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gdk_surface_win32_finalize (GObject *object)
{
GdkWin32Surface *surface;
g_return_if_fail (GDK_IS_WIN32_SURFACE (object));
surface = GDK_WIN32_SURFACE (object);
if (!GDK_SURFACE_DESTROYED (surface))
{
gdk_win32_handle_table_remove (surface->handle);
}
g_clear_pointer (&surface->snap_stash, g_free);
g_clear_pointer (&surface->snap_stash_int, g_free);
if (surface->hicon_big != NULL)
{
GDI_CALL (DestroyIcon, (surface->hicon_big));
surface->hicon_big = NULL;
}
if (surface->hicon_small != NULL)
{
GDI_CALL (DestroyIcon, (surface->hicon_small));
surface->hicon_small = NULL;
}
if (surface->cache_surface)
{
cairo_surface_destroy (surface->cache_surface);
surface->cache_surface = NULL;
}
_gdk_win32_surface_unregister_dnd (GDK_SURFACE (surface));
g_clear_object (&surface->drop);
g_assert (surface->transient_owner == NULL);
g_assert (surface->transient_children == NULL);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
void
_gdk_win32_get_window_client_area_rect (GdkSurface *window,
int scale,
RECT *rect)
{
int x, y, width, height;
gdk_surface_get_geometry (window, &x, &y, NULL, NULL);
width = gdk_surface_get_width (window);
height = gdk_surface_get_height (window);
rect->left = x * scale;
rect->top = y * scale;
rect->right = rect->left + width * scale;
rect->bottom = rect->top + height * scale;
}
static void
gdk_win32_impl_frame_clock_after_paint (GdkFrameClock *clock,
GdkSurface *surface)
{
DWM_TIMING_INFO timing_info;
LARGE_INTEGER tick_frequency;
GdkFrameTimings *timings;
timings = gdk_frame_clock_get_timings (clock, gdk_frame_clock_get_frame_counter (clock));
if (timings)
{
timings->refresh_interval = 16667; /* default to 1/60th of a second */
timings->presentation_time = 0;
if (QueryPerformanceFrequency (&tick_frequency))
{
HRESULT hr;
timing_info.cbSize = sizeof (timing_info);
hr = DwmGetCompositionTimingInfo (NULL, &timing_info);
if (SUCCEEDED (hr))
{
timings->refresh_interval = timing_info.qpcRefreshPeriod * (double)G_USEC_PER_SEC / tick_frequency.QuadPart;
timings->presentation_time = timing_info.qpcCompose * (double)G_USEC_PER_SEC / tick_frequency.QuadPart;
}
}
timings->complete = TRUE;
}
}
void
_gdk_win32_adjust_client_rect (GdkSurface *window,
RECT *rect)
{
LONG style, exstyle;
style = GetWindowLong (GDK_SURFACE_HWND (window), GWL_STYLE);
exstyle = GetWindowLong (GDK_SURFACE_HWND (window), GWL_EXSTYLE);
API_CALL (AdjustWindowRectEx, (rect, style, FALSE, exstyle));
}
gboolean
_gdk_win32_surface_enable_transparency (GdkSurface *window)
{
GdkWin32Surface *impl;
DWM_BLURBEHIND blur_behind;
HRGN empty_region;
HRESULT call_result;
HWND thiswindow;
if (window == NULL || GDK_SURFACE_HWND (window) == NULL)
return FALSE;
impl = GDK_WIN32_SURFACE (window);
/* layered windows don't need blurbehind for transparency */
if (impl->layered)
return TRUE;
if (!gdk_display_is_composited (gdk_surface_get_display (window)))
return FALSE;
thiswindow = GDK_SURFACE_HWND (window);
empty_region = CreateRectRgn (0, 0, -1, -1);
if (empty_region == NULL)
return FALSE;
memset (&blur_behind, 0, sizeof (blur_behind));
blur_behind.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION;
blur_behind.hRgnBlur = empty_region;
blur_behind.fEnable = TRUE;
call_result = DwmEnableBlurBehindWindow (thiswindow, &blur_behind);
if (!SUCCEEDED (call_result))
g_warning ("%s: %s (%p) failed: %" G_GINT32_MODIFIER "x",
G_STRLOC, "DwmEnableBlurBehindWindow", thiswindow, (guint32) call_result);
DeleteObject (empty_region);
return SUCCEEDED (call_result);
}
static const char *
get_default_title (void)
{
const char *title;
title = g_get_application_name ();
if (!title)
title = g_get_prgname ();
return title;
}
/* RegisterGdkClass
* is a wrapper function for RegisterWindowClassEx.
* It creates at least one unique class for every
* GdkSurfaceType. If support for single window-specific icons
* is ever needed (e.g Dialog specific), every such window should
* get its own class
*/
static ATOM
RegisterGdkClass (GdkSurfaceType wtype)
{
static ATOM klassTOPLEVEL = 0;
static ATOM klassTEMP = 0;
static HICON hAppIcon = NULL;
static HICON hAppIconSm = NULL;
static WNDCLASSEXW wcl;
ATOM klass = 0;
wcl.cbSize = sizeof (WNDCLASSEX);
wcl.style = 0; /* DON'T set CS_<H,V>REDRAW. It causes total redraw
* on WM_SIZE and WM_MOVE. Flicker, Performance!
*/
wcl.lpfnWndProc = _gdk_win32_surface_procedure;
wcl.cbClsExtra = 0;
wcl.cbWndExtra = 0;
wcl.hInstance = _gdk_dll_hinstance;
wcl.hIcon = 0;
wcl.hIconSm = 0;
/* initialize once! */
if (0 == hAppIcon && 0 == hAppIconSm)
{
char sLoc [MAX_PATH+1];
if (0 != GetModuleFileName (_gdk_dll_hinstance, sLoc, MAX_PATH))
{
ExtractIconEx (sLoc, 0, &hAppIcon, &hAppIconSm, 1);
if (0 == hAppIcon && 0 == hAppIconSm)
{
if (0 != GetModuleFileName (_gdk_dll_hinstance, sLoc, MAX_PATH))
{
ExtractIconEx (sLoc, 0, &hAppIcon, &hAppIconSm, 1);
}
}
}
if (0 == hAppIcon && 0 == hAppIconSm)
{
hAppIcon = LoadImage (NULL, IDI_APPLICATION, IMAGE_ICON,
GetSystemMetrics (SM_CXICON),
GetSystemMetrics (SM_CYICON), 0);
hAppIconSm = LoadImage (NULL, IDI_APPLICATION, IMAGE_ICON,
GetSystemMetrics (SM_CXSMICON),
GetSystemMetrics (SM_CYSMICON), 0);
}
}
if (0 == hAppIcon)
hAppIcon = hAppIconSm;
else if (0 == hAppIconSm)
hAppIconSm = hAppIcon;
wcl.lpszMenuName = NULL;
/* initialize once per class */
/*
* HB: Setting the background brush leads to flicker, because we
* don't get asked how to clear the background. This is not what
* we want, at least not for input_only windows ...
*/
#define ONCE_PER_CLASS() \
wcl.hIcon = CopyIcon (hAppIcon); \
wcl.hIconSm = CopyIcon (hAppIconSm); \
wcl.hbrBackground = NULL; \
wcl.hCursor = LoadCursor (NULL, IDC_ARROW);
switch (wtype)
{
case GDK_SURFACE_TOPLEVEL:
case GDK_SURFACE_POPUP:
/* MSDN: CS_OWNDC is needed for OpenGL contexts */
wcl.style |= CS_OWNDC;
if (0 == klassTOPLEVEL)
{
wcl.lpszClassName = L"gdkSurfaceToplevel";
ONCE_PER_CLASS ();
klassTOPLEVEL = RegisterClassExW (&wcl);
}
klass = klassTOPLEVEL;
break;
case GDK_SURFACE_TEMP:
if (klassTEMP == 0)
{
wcl.lpszClassName = L"gdkSurfaceTemp";
wcl.style |= CS_SAVEBITS;
ONCE_PER_CLASS ();
klassTEMP = RegisterClassExW (&wcl);
}
klass = klassTEMP;
break;
default:
g_assert_not_reached ();
break;
}
if (klass == 0)
{
WIN32_API_FAILED ("RegisterClassExW");
g_error ("That is a fatal error");
}
return klass;
}
/*
* Create native windows.
*
* With the default Gdk the created windows are mostly toplevel windows.
*
* Placement of the window is derived from the passed in window,
* except for toplevel window where OS/Window Manager placement
* is used.
*
* [1] http://mail.gnome.org/archives/gtk-devel-list/2010-August/msg00214.html
*/
GdkSurface *
_gdk_win32_display_create_surface (GdkDisplay *display,
GdkSurfaceType surface_type,
GdkSurface *parent,
int x,
int y,
int width,
int height)
{
HWND hwndNew;
HANDLE owner;
ATOM klass = 0;
DWORD dwStyle = 0, dwExStyle;
RECT rect;
GdkWin32Surface *impl;
GdkWin32Display *display_win32;
GdkSurface *surface;
const char *title;
wchar_t *wtitle;
int window_width, window_height;
int window_x, window_y;
int offset_x = 0, offset_y = 0;
int real_x = 0, real_y = 0;
GdkFrameClock *frame_clock;
g_return_val_if_fail (display == _gdk_display, NULL);
GDK_NOTE (MISC,
g_print ("_gdk_surface_new: %s\n", (surface_type == GDK_SURFACE_TOPLEVEL ? "TOPLEVEL" :
(surface_type == GDK_SURFACE_TEMP ? "TEMP" :
(surface_type == GDK_SURFACE_TEMP ? "POPUP" : "???")))));
display_win32 = GDK_WIN32_DISPLAY (display);
if (parent)
frame_clock = g_object_ref (gdk_surface_get_frame_clock (parent));
else
frame_clock = _gdk_frame_clock_idle_new ();
switch (surface_type)
{
case GDK_SURFACE_TOPLEVEL:
impl = g_object_new (GDK_TYPE_WIN32_TOPLEVEL,
"display", display,
"frame-clock", frame_clock,
NULL);
break;
case GDK_SURFACE_POPUP:
impl = g_object_new (GDK_TYPE_WIN32_POPUP,
"parent", parent,
"display", display,
"frame-clock", frame_clock,
NULL);
break;
case GDK_SURFACE_TEMP:
impl = g_object_new (GDK_TYPE_WIN32_DRAG_SURFACE,
"display", display,
"frame-clock", frame_clock,
NULL);
break;
default:
g_assert_not_reached ();
break;
}
surface = GDK_SURFACE (impl);
surface->x = x;
surface->y = y;
surface->width = width;
surface->height = height;
impl->layered = FALSE;
impl->layered_opacity = 1.0;
impl->surface_scale = _gdk_win32_display_get_monitor_scale_factor (display_win32, NULL, NULL, NULL);
impl->unscaled_width = width * impl->surface_scale;
impl->unscaled_height = height * impl->surface_scale;
dwExStyle = 0;
owner = NULL;
offset_x = _gdk_offset_x;
offset_y = _gdk_offset_y;
/* MSDN: We need WS_CLIPCHILDREN and WS_CLIPSIBLINGS for GL Context Creation */
dwStyle = WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
switch (surface_type)
{
case GDK_SURFACE_TOPLEVEL:
dwStyle |= WS_OVERLAPPEDWINDOW;
break;
case GDK_SURFACE_TEMP:
dwExStyle |= WS_EX_TOOLWINDOW | WS_EX_TOPMOST;
/* fall through */
case GDK_SURFACE_POPUP:
dwStyle |= WS_POPUP;
/* Only popup and temp windows are fit to use the Owner Window mechanism */
if (parent != NULL)
owner = GDK_SURFACE_HWND (parent);
break;
default:
g_assert_not_reached ();
}
rect.left = x * impl->surface_scale;
rect.top = y * impl->surface_scale;
rect.right = rect.left + width * impl->surface_scale;
rect.bottom = rect.top + height * impl->surface_scale;
AdjustWindowRectEx (&rect, dwStyle, FALSE, dwExStyle);
real_x = (x - offset_x) * impl->surface_scale;
real_y = (y - offset_y) * impl->surface_scale;
if (surface_type == GDK_SURFACE_TOPLEVEL)
{
/* We initially place it at default so that we can get the
default window positioning if we want */
window_x = window_y = CW_USEDEFAULT;
}
else
{
/* TEMP: Put these where requested */
window_x = real_x;
window_y = real_y;
}
window_width = rect.right - rect.left;
window_height = rect.bottom - rect.top;
title = get_default_title ();
if (!title || !*title)
title = "";
/* WS_EX_TRANSPARENT means "try draw this window last, and ignore input".
* It's the last part we're after. We don't want DND indicator to accept
* input, because that will make it a potential drop target, and if it's
* under the mouse cursor, this will kill any DND.
*/
klass = RegisterGdkClass (surface_type);
wtitle = g_utf8_to_utf16 (title, -1, NULL, NULL, NULL);
hwndNew = CreateWindowExW (dwExStyle,
MAKEINTRESOURCEW (klass),
wtitle,
dwStyle,
window_x, window_y,
window_width, window_height,
owner,
NULL,
_gdk_dll_hinstance,
surface);
impl->handle = hwndNew;
GetWindowRect (hwndNew, &rect);
impl->initial_x = rect.left;
impl->initial_y = rect.top;
/* Now we know the initial position, move to actually specified position */
if (real_x != window_x || real_y != window_y)
{
API_CALL (SetWindowPos, (hwndNew,
SWP_NOZORDER_SPECIFIED,
real_x, real_y, 0, 0,
SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOZORDER));
}
g_object_ref (impl);
/* Take note: we're inserting a pointer into a heap-allocated
* object (impl). Inserting a pointer to a stack variable
* will break the logic, since stack variables are short-lived.
* We insert a pointer to the handle instead of the handle itself
* probably because we need to hash them differently depending
* on the bitness of the OS. That pointer is still unique,
* so this works out in the end.
*/
gdk_win32_handle_table_insert (&GDK_SURFACE_HWND (impl), impl);
GDK_NOTE (MISC, g_print ("... \"%s\" %dx%d@%+d%+d %p = %p\n",
title,
window_width, window_height,
surface->x - offset_x,
surface->y - offset_y,
owner,
hwndNew));
g_free (wtitle);
if (impl->handle == NULL)
{
WIN32_API_FAILED ("CreateWindowExW");
g_object_unref (impl);
return NULL;
}
_gdk_win32_surface_enable_transparency (surface);
_gdk_win32_surface_register_dnd (surface);
g_signal_connect (frame_clock,
"after-paint",
G_CALLBACK (gdk_win32_impl_frame_clock_after_paint),
impl);
g_object_unref (frame_clock);
return surface;
}
static void
gdk_win32_surface_set_transient_for (GdkSurface *window,
GdkSurface *parent);
static void
gdk_win32_surface_destroy (GdkSurface *window,
gboolean foreign_destroy)
{
GdkWin32Surface *surface = GDK_WIN32_SURFACE (window);
g_return_if_fail (GDK_IS_SURFACE (window));
GDK_NOTE (MISC, g_print ("gdk_win32_surface_destroy: %p\n",
GDK_SURFACE_HWND (window)));
/* Remove ourself from the modal stack */
_gdk_remove_modal_window (window);
g_signal_handlers_disconnect_by_func (gdk_surface_get_frame_clock (window),
gdk_win32_impl_frame_clock_after_paint,
window);
/* Remove all our transient children */
while (surface->transient_children != NULL)
{
GdkSurface *child = surface->transient_children->data;
gdk_win32_surface_set_transient_for (child, NULL);
}
#ifdef GDK_WIN32_ENABLE_EGL
GdkWin32Display *display = GDK_WIN32_DISPLAY (gdk_surface_get_display (window));
/* Get rid of any EGLSurfaces that we might have created */
if (surface->egl_surface != EGL_NO_SURFACE)
{
eglDestroySurface (display->egl_disp, surface->egl_surface);
surface->egl_surface = EGL_NO_SURFACE;
}
if (surface->egl_dummy_surface != EGL_NO_SURFACE)
{
eglDestroySurface (display->egl_disp, surface->egl_dummy_surface);
surface->egl_dummy_surface = EGL_NO_SURFACE;
}
#endif
/* Remove ourself from our transient owner */
if (surface->transient_owner != NULL)
{
gdk_win32_surface_set_transient_for (window, NULL);
}
if (!foreign_destroy)
{
window->destroyed = TRUE;
DestroyWindow (GDK_SURFACE_HWND (window));
}
}
/* This function is called when the window really gone.
*/
static void
gdk_win32_surface_destroy_notify (GdkSurface *window)
{
g_return_if_fail (GDK_IS_SURFACE (window));
GDK_NOTE (EVENTS,
g_print ("gdk_surface_destroy_notify: %p%s\n",
GDK_SURFACE_HWND (window),
(GDK_SURFACE_DESTROYED (window) ? " (destroyed)" : "")));
if (!GDK_SURFACE_DESTROYED (window))
{
g_warning ("window %p unexpectedly destroyed",
GDK_SURFACE_HWND (window));
_gdk_surface_destroy (window, TRUE);
}
gdk_win32_handle_table_remove (GDK_SURFACE_HWND (window));
g_object_unref (window);
}
static void
get_outer_rect (GdkSurface *window,
int width,
int height,
RECT *rect)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
rect->left = rect->top = 0;
rect->right = width * impl->surface_scale;
rect->bottom = height * impl->surface_scale;
_gdk_win32_adjust_client_rect (window, rect);
}
static void
gdk_win32_surface_fullscreen (GdkSurface *window);
static void
show_window_internal (GdkSurface *window,
gboolean already_mapped,
gboolean unminimize)
{
GdkWin32Surface *surface;
DWORD exstyle;
if (window->destroyed)
return;
GDK_NOTE (MISC, g_print ("show_window_internal: %p: %s%s\n",
GDK_SURFACE_HWND (window),
_gdk_win32_surface_state_to_string (window->state),
(unminimize ? " unminimize" : "")));
/* If asked to show (not unminimize) a withdrawn and iconified
* window, do that.
*/
if (!unminimize &&
!already_mapped &&
(window->state & GDK_TOPLEVEL_STATE_MINIMIZED))
{
GtkShowWindow (window, SW_SHOWMINNOACTIVE);
return;
}
/* If asked to just show an iconified window, do nothing. */
if (!unminimize && (window->state & GDK_TOPLEVEL_STATE_MINIMIZED))
return;
/* If asked to unminimize an already noniconified window, do
* nothing. (Especially, don't cause the window to rise and
* activate. There are different calls for that.)
*/
if (unminimize && !(window->state & GDK_TOPLEVEL_STATE_MINIMIZED))
return;
/* If asked to show (but not raise) a window that is already
* visible, do nothing.
*/
if (!unminimize && !already_mapped && IsWindowVisible (GDK_SURFACE_HWND (window)))
return;
/* Other cases */
exstyle = GetWindowLong (GDK_SURFACE_HWND (window), GWL_EXSTYLE);
/* Use SetWindowPos to show transparent windows so automatic redraws
* in other windows can be suppressed.
*/
if (exstyle & WS_EX_TRANSPARENT)
{
UINT flags = SWP_SHOWWINDOW | SWP_NOREDRAW | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER;
if (GDK_IS_DRAG_SURFACE (window))
flags |= SWP_NOACTIVATE;
SetWindowPos (GDK_SURFACE_HWND (window),
SWP_NOZORDER_SPECIFIED, 0, 0, 0, 0, flags);
return;
}
/* For initial map of "normal" windows we want to emulate WM window
* positioning behaviour, which means:
* + default to the initial CW_USEDEFAULT placement,
* no matter if the user moved the window before showing it.
* + Certain window types and hints have more elaborate positioning
* schemes.
*/
surface = GDK_WIN32_SURFACE (window);
if (!already_mapped &&
GDK_IS_TOPLEVEL (window))
{
gboolean center = FALSE;
RECT window_rect, center_on_rect;
int x, y;
x = surface->initial_x;
y = surface->initial_y;
if (FALSE)
{
HMONITOR monitor;
MONITORINFO mi;
monitor = MonitorFromWindow (GDK_SURFACE_HWND (window), MONITOR_DEFAULTTONEAREST);
mi.cbSize = sizeof (mi);
if (monitor && GetMonitorInfo (monitor, &mi))
center_on_rect = mi.rcMonitor;
else
{
center_on_rect.left = 0;
center_on_rect.top = 0;
center_on_rect.right = GetSystemMetrics (SM_CXSCREEN);
center_on_rect.bottom = GetSystemMetrics (SM_CYSCREEN);
}
center = TRUE;
}
else if (surface->transient_owner != NULL &&
GDK_SURFACE_IS_MAPPED (surface->transient_owner))
{
GdkSurface *owner = surface->transient_owner;
/* Center on transient parent */
center_on_rect.left = (owner->x - _gdk_offset_x) * surface->surface_scale;
center_on_rect.top = (owner->y - _gdk_offset_y) * surface->surface_scale;
center_on_rect.right = center_on_rect.left + owner->width * surface->surface_scale;
center_on_rect.bottom = center_on_rect.top + owner->height * surface->surface_scale;
_gdk_win32_adjust_client_rect (GDK_SURFACE (owner), &center_on_rect);
center = TRUE;
}
if (center)
{
window_rect.left = 0;
window_rect.top = 0;
window_rect.right = window->width * surface->surface_scale;
window_rect.bottom = window->height * surface->surface_scale;
_gdk_win32_adjust_client_rect (window, &window_rect);
x = center_on_rect.left + ((center_on_rect.right - center_on_rect.left) - (window_rect.right - window_rect.left)) / 2;
y = center_on_rect.top + ((center_on_rect.bottom - center_on_rect.top) - (window_rect.bottom - window_rect.top)) / 2;
}
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window),
SWP_NOZORDER_SPECIFIED,
x, y, 0, 0,
SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOZORDER));
}
if (!already_mapped && GDK_IS_TOPLEVEL (window))
{
/* Ensure new windows are fully onscreen */
RECT window_rect;
HMONITOR monitor;
MONITORINFO mi;
int x, y;
GetWindowRect (GDK_SURFACE_HWND (window), &window_rect);
monitor = MonitorFromWindow (GDK_SURFACE_HWND (window), MONITOR_DEFAULTTONEAREST);
mi.cbSize = sizeof (mi);
if (monitor && GetMonitorInfo (monitor, &mi))
{
x = window_rect.left;
y = window_rect.top;
if (window_rect.right > mi.rcWork.right)
{
window_rect.left -= (window_rect.right - mi.rcWork.right);
window_rect.right -= (window_rect.right - mi.rcWork.right);
}
if (window_rect.bottom > mi.rcWork.bottom)
{
window_rect.top -= (window_rect.bottom - mi.rcWork.bottom);
window_rect.bottom -= (window_rect.bottom - mi.rcWork.bottom);
}
if (window_rect.left < mi.rcWork.left)
{
window_rect.right += (mi.rcWork.left - window_rect.left);
window_rect.left += (mi.rcWork.left - window_rect.left);
}
if (window_rect.top < mi.rcWork.top)
{
window_rect.bottom += (mi.rcWork.top - window_rect.top);
window_rect.top += (mi.rcWork.top - window_rect.top);
}
if (x != window_rect.left || y != window_rect.top)
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window),
SWP_NOZORDER_SPECIFIED,
window_rect.left, window_rect.top, 0, 0,
SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOZORDER));
}
}
if (window->state & GDK_TOPLEVEL_STATE_FULLSCREEN)
{
gdk_win32_surface_fullscreen (window);
}
else if (window->state & GDK_TOPLEVEL_STATE_MAXIMIZED)
{
GtkShowWindow (window, SW_MAXIMIZE);
}
else if (window->state & GDK_TOPLEVEL_STATE_MINIMIZED)
{
GtkShowWindow (window, SW_RESTORE);
}
else if (GDK_IS_DRAG_SURFACE (window))
{
if (!IsWindowVisible (GDK_SURFACE_HWND (window)))
GtkShowWindow (window, SW_SHOWNOACTIVATE);
else
GtkShowWindow (window, SW_SHOWNA);
}
else if (!IsWindowVisible (GDK_SURFACE_HWND (window)))
{
GtkShowWindow (window, SW_SHOWNORMAL);
}
else
{
GtkShowWindow (window, SW_SHOW);
}
/* Sync STATE_ABOVE to TOPMOST */
if (!GDK_IS_DRAG_SURFACE (window) &&
(((window->state & GDK_TOPLEVEL_STATE_ABOVE) &&
!(exstyle & WS_EX_TOPMOST)) ||
(!(window->state & GDK_TOPLEVEL_STATE_ABOVE) &&
(exstyle & WS_EX_TOPMOST))))
{
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window),
(window->state & GDK_TOPLEVEL_STATE_ABOVE)?HWND_TOPMOST:HWND_NOTOPMOST,
0, 0, 0, 0,
SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE));
}
}
void
gdk_win32_surface_show (GdkSurface *window,
gboolean already_mapped)
{
show_window_internal (window, FALSE, FALSE);
}
static void
gdk_win32_surface_hide (GdkSurface *window)
{
if (window->destroyed)
return;
GDK_NOTE (MISC, g_print ("gdk_win32_surface_hide: %p: %s\n",
GDK_SURFACE_HWND (window),
_gdk_win32_surface_state_to_string (window->state)));
if (GDK_SURFACE_IS_MAPPED (window))
gdk_surface_set_is_mapped (window, FALSE);
_gdk_surface_clear_update_area (window);
if (GDK_IS_TOPLEVEL (window))
ShowOwnedPopups (GDK_SURFACE_HWND (window), FALSE);
/* Use SetWindowPos to hide transparent windows so automatic redraws
* in other windows can be suppressed.
*/
if (GetWindowLong (GDK_SURFACE_HWND (window), GWL_EXSTYLE) & WS_EX_TRANSPARENT)
{
SetWindowPos (GDK_SURFACE_HWND (window), SWP_NOZORDER_SPECIFIED,
0, 0, 0, 0,
SWP_HIDEWINDOW | SWP_NOREDRAW | SWP_NOZORDER | SWP_NOMOVE | SWP_NOSIZE);
}
else
{
GtkShowWindow (window, SW_HIDE);
}
}
static void
gdk_win32_surface_do_move (GdkSurface *window,
int x, int y)
{
RECT outer_rect;
GdkWin32Surface *impl;
g_return_if_fail (GDK_IS_SURFACE (window));
if (GDK_SURFACE_DESTROYED (window))
return;
GDK_NOTE (MISC, g_print ("gdk_win32_surface_move: %p: %+d%+d\n",
GDK_SURFACE_HWND (window), x, y));
if (window->state & GDK_TOPLEVEL_STATE_FULLSCREEN)
return;
impl = GDK_WIN32_SURFACE (window);
get_outer_rect (window, window->width, window->height, &outer_rect);
GDK_NOTE (MISC, g_print ("... SetWindowPos(%p,NULL,%d,%d,0,0,"
"NOACTIVATE|NOSIZE|NOZORDER)\n",
GDK_SURFACE_HWND (window),
(x - _gdk_offset_x) * impl->surface_scale,
(y - _gdk_offset_y) * impl->surface_scale));
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window),
SWP_NOZORDER_SPECIFIED,
(x - _gdk_offset_x) * impl->surface_scale,
(y - _gdk_offset_y) * impl->surface_scale,
0, 0,
SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOZORDER));
}
void
gdk_win32_surface_resize (GdkSurface *window,
int width, int height)
{
RECT outer_rect;
g_return_if_fail (GDK_IS_SURFACE (window));
if (GDK_SURFACE_DESTROYED (window))
return;
if (width < 1)
width = 1;
if (height < 1)
height = 1;
GDK_NOTE (MISC, g_print ("gdk_win32_surface_resize: %p: %dx%d\n",
GDK_SURFACE_HWND (window), width, height));
if (window->state & GDK_TOPLEVEL_STATE_FULLSCREEN)
return;
get_outer_rect (window, width, height, &outer_rect);
GDK_NOTE (MISC, g_print ("... SetWindowPos(%p,NULL,0,0,%ld,%ld,"
"NOACTIVATE|NOMOVE|NOZORDER)\n",
GDK_SURFACE_HWND (window),
outer_rect.right - outer_rect.left,
outer_rect.bottom - outer_rect.top));
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window),
SWP_NOZORDER_SPECIFIED,
0, 0,
outer_rect.right - outer_rect.left,
outer_rect.bottom - outer_rect.top,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER));
window->resize_count += 1;
gdk_surface_request_layout (window);
}
static void
gdk_win32_surface_do_move_resize (GdkSurface *window,
int x,
int y,
int width,
int height)
{
RECT outer_rect;
GdkWin32Surface *impl;
g_return_if_fail (GDK_IS_SURFACE (window));
if (GDK_SURFACE_DESTROYED (window))
return;
if (width < 1)
width = 1;
if (height < 1)
height = 1;
if (window->state & GDK_TOPLEVEL_STATE_FULLSCREEN)
return;
GDK_NOTE (MISC, g_print ("gdk_win32_surface_move_resize: %p: %dx%d@%+d%+d\n",
GDK_SURFACE_HWND (window),
width, height, x, y));
impl = GDK_WIN32_SURFACE (window);
get_outer_rect (window, width, height, &outer_rect);
GDK_NOTE (MISC, g_print ("... SetWindowPos(%p,NULL,%d,%d,%ld,%ld,"
"NOACTIVATE|NOZORDER)\n",
GDK_SURFACE_HWND (window),
(x - _gdk_offset_x) * impl->surface_scale,
(y - _gdk_offset_y) * impl->surface_scale,
outer_rect.right - outer_rect.left,
outer_rect.bottom - outer_rect.top));
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window),
SWP_NOZORDER_SPECIFIED,
(x - _gdk_offset_x) * impl->surface_scale,
(y - _gdk_offset_y) * impl->surface_scale,
outer_rect.right - outer_rect.left,
outer_rect.bottom - outer_rect.top,
SWP_NOACTIVATE | SWP_NOZORDER));
}
static void
gdk_win32_surface_move_resize_internal (GdkSurface *window,
gboolean with_move,
int x,
int y,
int width,
int height)
{
GdkWin32Surface *surface = GDK_WIN32_SURFACE (window);
/* We ignore changes to the window being moved or resized by the
user, as we don't want to fight the user */
if (GDK_SURFACE_HWND (window) == _modal_move_resize_window)
goto out;
if (with_move && (width < 0 && height < 0))
{
gdk_win32_surface_do_move (window, x, y);
}
else
{
_gdk_win32_surface_invalidate_egl_framebuffer (window);
if (with_move)
{
gdk_win32_surface_do_move_resize (window, x, y, width, height);
}
else
{
gdk_win32_surface_resize (window, width, height);
}
}
out:
gdk_surface_request_layout (window);
}
void
gdk_win32_surface_move_resize (GdkSurface *window,
int x,
int y,
int width,
int height)
{
gdk_win32_surface_move_resize_internal (window, TRUE, x, y, width, height);
}
void
gdk_win32_surface_move (GdkSurface *surface,
int x,
int y)
{
gdk_win32_surface_move_resize_internal (surface, TRUE, x, y, -1, -1);
}
static void
gdk_win32_surface_layout_popup (GdkSurface *surface,
int width,
int height,
GdkPopupLayout *layout)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
GdkMonitor *monitor;
GdkRectangle bounds;
GdkRectangle final_rect;
int x, y;
monitor = gdk_surface_get_layout_monitor (surface, layout,
gdk_win32_monitor_get_workarea);
gdk_win32_monitor_get_workarea (monitor, &bounds);
gdk_surface_layout_popup_helper (surface,
width,
height,
impl->shadow.left,
impl->shadow.right,
impl->shadow.top,
impl->shadow.bottom,
monitor,
&bounds,
layout,
&final_rect);
gdk_surface_get_origin (surface->parent, &x, &y);
x += final_rect.x;
y += final_rect.y;
if (final_rect.width != surface->width ||
final_rect.height != surface->height)
{
gdk_win32_surface_move_resize (surface,
x,
y,
final_rect.width,
final_rect.height);
}
else
{
gdk_win32_surface_move (surface, x, y);
}
}
static void
maybe_notify_mapped (GdkSurface *surface)
{
if (surface->destroyed)
return;
if (!GDK_SURFACE_IS_MAPPED (surface))
{
gdk_surface_set_is_mapped (surface, TRUE);
gdk_surface_invalidate_rect (surface, NULL);
}
}
static void
show_popup (GdkSurface *surface)
{
gdk_win32_surface_raise (surface);
maybe_notify_mapped (surface);
show_window_internal (surface, FALSE, FALSE);
gdk_surface_invalidate_rect (surface, NULL);
}
static void
show_grabbing_popup (GdkSeat *seat,
GdkSurface *surface,
gpointer user_data)
{
show_popup (surface);
}
static gboolean
gdk_win32_surface_present_popup (GdkSurface *surface,
int width,
int height,
GdkPopupLayout *layout)
{
gdk_win32_surface_layout_popup (surface, width, height, layout);
if (GDK_SURFACE_IS_MAPPED (surface))
return TRUE;
if (surface->autohide)
{
gdk_seat_grab (gdk_display_get_default_seat (surface->display),
surface,
GDK_SEAT_CAPABILITY_ALL,
TRUE,
NULL, NULL,
show_grabbing_popup, NULL);
}
else
{
show_popup (surface);
}
return GDK_SURFACE_IS_MAPPED (surface);
}
void
gdk_win32_surface_raise (GdkSurface *window)
{
if (!GDK_SURFACE_DESTROYED (window))
{
GDK_NOTE (MISC, g_print ("gdk_win32_surface_raise: %p\n",
GDK_SURFACE_HWND (window)));
if (GDK_IS_DRAG_SURFACE (window))
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window), HWND_TOPMOST,
0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE | SWP_NOOWNERZORDER));
else if (GDK_IS_POPUP (window))
ShowWindow (GDK_SURFACE_HWND (window), SW_SHOWNOACTIVATE);
else
/* Do not wrap this in an API_CALL macro as SetForegroundWindow might
* fail when for example dragging a window belonging to a different
* application at the time of a gtk_window_present() call due to focus
* stealing prevention. */
SetForegroundWindow (GDK_SURFACE_HWND (window));
}
}
void
gdk_win32_surface_set_urgency_hint (GdkSurface *window,
gboolean urgent)
{
FLASHWINFO flashwinfo;
typedef BOOL (WINAPI *PFN_FlashWindowEx) (FLASHWINFO*);
PFN_FlashWindowEx flashWindowEx = NULL;
g_return_if_fail (GDK_IS_SURFACE (window));
if (GDK_SURFACE_DESTROYED (window))
return;
flashWindowEx = (PFN_FlashWindowEx) GetProcAddress (GetModuleHandle ("user32.dll"), "FlashWindowEx");
if (flashWindowEx)
{
flashwinfo.cbSize = sizeof (flashwinfo);
flashwinfo.hwnd = GDK_SURFACE_HWND (window);
if (urgent)
flashwinfo.dwFlags = FLASHW_ALL | FLASHW_TIMER;
else
flashwinfo.dwFlags = FLASHW_STOP;
flashwinfo.uCount = 0;
flashwinfo.dwTimeout = 0;
flashWindowEx (&flashwinfo);
}
else
{
FlashWindow (GDK_SURFACE_HWND (window), urgent);
}
}
static gboolean
get_effective_window_decorations (GdkSurface *window,
GdkWMDecoration *decoration)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
*decoration = 0;
if (!GDK_IS_TOPLEVEL (window))
return FALSE;
/* we want to apply the "no decorations", if decorations are disabled */
if (!GDK_WIN32_SURFACE (window)->decorate_all)
return TRUE;
if ((impl->hint_flags & GDK_HINT_MIN_SIZE) &&
(impl->hint_flags & GDK_HINT_MAX_SIZE) &&
impl->hints.min_width == impl->hints.max_width &&
impl->hints.min_height == impl->hints.max_height)
{
*decoration = GDK_DECOR_ALL | GDK_DECOR_RESIZEH | GDK_DECOR_MAXIMIZE;
*decoration |= GDK_DECOR_MINIMIZE;
return TRUE;
}
else if (impl->hint_flags & GDK_HINT_MAX_SIZE)
{
*decoration = GDK_DECOR_ALL | GDK_DECOR_MAXIMIZE;
*decoration |= GDK_DECOR_MINIMIZE;
return TRUE;
}
else
{
*decoration = (GDK_DECOR_ALL | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE);
return TRUE;
}
return FALSE;
}
static void
gdk_win32_surface_set_geometry_hints (GdkSurface *window,
const GdkGeometry *geometry,
GdkSurfaceHints geom_mask)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
FullscreenInfo *fi;
g_return_if_fail (GDK_IS_SURFACE (window));
if (GDK_SURFACE_DESTROYED (window))
return;
GDK_NOTE (MISC, g_print ("gdk_surface_set_geometry_hints: %p\n",
GDK_SURFACE_HWND (window)));
fi = g_object_get_data (G_OBJECT (window), "fullscreen-info");
if (fi)
fi->hint_flags = geom_mask;
else
impl->hint_flags = geom_mask;
impl->hints = *geometry;
if (geom_mask & GDK_HINT_MIN_SIZE)
{
GDK_NOTE (MISC, g_print ("... MIN_SIZE: %dx%d\n",
geometry->min_width, geometry->min_height));
}
if (geom_mask & GDK_HINT_MAX_SIZE)
{
GDK_NOTE (MISC, g_print ("... MAX_SIZE: %dx%d\n",
geometry->max_width, geometry->max_height));
}
_gdk_win32_surface_update_style_bits (window);
}
static void
gdk_win32_surface_set_title (GdkSurface *window,
const char *title)
{
wchar_t *wtitle;
g_return_if_fail (GDK_IS_SURFACE (window));
g_return_if_fail (title != NULL);
if (GDK_SURFACE_DESTROYED (window))
return;
/* Empty window titles not allowed, so set it to just a period. */
if (!title[0])
title = ".";
GDK_NOTE (MISC, g_print ("gdk_surface_set_title: %p: %s\n",
GDK_SURFACE_HWND (window), title));
GDK_NOTE (MISC_OR_EVENTS, title = g_strdup_printf ("%p %s", GDK_SURFACE_HWND (window), title));
wtitle = g_utf8_to_utf16 (title, -1, NULL, NULL, NULL);
API_CALL (SetWindowTextW, (GDK_SURFACE_HWND (window), wtitle));
g_free (wtitle);
GDK_NOTE (MISC_OR_EVENTS, g_free ((char *) title));
}
static void
gdk_win32_surface_set_transient_for (GdkSurface *window,
GdkSurface *parent)
{
HWND window_id, parent_id;
LONG_PTR old_ptr;
DWORD w32_error;
GdkWin32Surface *surface = GDK_WIN32_SURFACE (window);
GdkWin32Surface *parent_impl = NULL;
GSList *item;
g_return_if_fail (GDK_IS_SURFACE (window));
window_id = GDK_SURFACE_HWND (window);
parent_id = parent != NULL ? GDK_SURFACE_HWND (parent) : NULL;
GDK_NOTE (MISC, g_print ("gdk_surface_set_transient_for: %p: %p\n", window_id, parent_id));
if (GDK_SURFACE_DESTROYED (window) || (parent && GDK_SURFACE_DESTROYED (parent)))
{
if (GDK_SURFACE_DESTROYED (window))
GDK_NOTE (MISC, g_print ("... destroyed!\n"));
else
GDK_NOTE (MISC, g_print ("... owner destroyed!\n"));
return;
}
if (surface->transient_owner == parent)
return;
if (GDK_IS_SURFACE (surface->transient_owner))
{
GdkWin32Surface *trans_impl = GDK_WIN32_SURFACE (surface->transient_owner);
item = g_slist_find (trans_impl->transient_children, window);
item->data = NULL;
trans_impl->transient_children = g_slist_delete_link (trans_impl->transient_children, item);
trans_impl->num_transients--;
if (!trans_impl->num_transients)
{
trans_impl->transient_children = NULL;
}
g_object_unref (G_OBJECT (surface->transient_owner));
g_object_unref (G_OBJECT (window));
surface->transient_owner = NULL;
}
if (parent)
{
parent_impl = GDK_WIN32_SURFACE (parent);
parent_impl->transient_children = g_slist_append (parent_impl->transient_children, window);
g_object_ref (G_OBJECT (window));
parent_impl->num_transients++;
surface->transient_owner = parent;
g_object_ref (G_OBJECT (parent));
}
SetLastError (0);
old_ptr = GetWindowLongPtr (window_id, GWLP_HWNDPARENT);
w32_error = GetLastError ();
/* Don't re-set GWLP_HWNDPARENT to the same value */
if ((HWND) old_ptr == parent_id && w32_error == NO_ERROR)
return;
/* Don't return if it failed, try SetWindowLongPtr() anyway */
if (old_ptr == 0 && w32_error != NO_ERROR)
WIN32_API_FAILED ("GetWindowLongPtr");
/* This changes the *owner* of the window, despite the misleading
* name. (Owner and parent are unrelated concepts.) At least that's
* what people who seem to know what they talk about say on
* USENET. Search on Google.
*/
SetLastError (0);
old_ptr = SetWindowLongPtr (window_id, GWLP_HWNDPARENT, (LONG_PTR) parent_id);
w32_error = GetLastError ();
if (old_ptr == 0 && w32_error != NO_ERROR)
WIN32_API_FAILED ("SetWindowLongPtr");
}
void
_gdk_push_modal_window (GdkSurface *window)
{
modal_window_stack = g_slist_prepend (modal_window_stack, window);
}
void
_gdk_remove_modal_window (GdkSurface *window)
{
GSList *tmp;
g_return_if_fail (window != NULL);
/* It's possible to be NULL here if someone sets the modal hint of the window
* to FALSE before a modal window stack has ever been created. */
if (modal_window_stack == NULL)
return;
/* Find the requested window in the stack and remove it. Yeah, I realize this
* means we're not a 'real stack', strictly speaking. Sue me. :) */
tmp = g_slist_find (modal_window_stack, window);
if (tmp != NULL)
{
modal_window_stack = g_slist_delete_link (modal_window_stack, tmp);
}
}
gboolean
_gdk_modal_blocked (GdkSurface *window)
{
GSList *l;
gboolean found_any = FALSE;
for (l = modal_window_stack; l != NULL; l = l->next)
{
GdkSurface *modal = l->data;
if (modal == window)
return FALSE;
if (GDK_SURFACE_IS_MAPPED (modal))
found_any = TRUE;
}
return found_any;
}
GdkSurface *
_gdk_modal_current (void)
{
GSList *l;
for (l = modal_window_stack; l != NULL; l = l->next)
{
GdkSurface *modal = l->data;
if (GDK_SURFACE_IS_MAPPED (modal))
return modal;
}
return NULL;
}
static void
gdk_win32_surface_get_geometry (GdkSurface *window,
int *x,
int *y,
int *width,
int *height)
{
if (!GDK_SURFACE_DESTROYED (window))
{
RECT rect;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
API_CALL (GetClientRect, (GDK_SURFACE_HWND (window), &rect));
POINT pt;
GdkSurface *parent;
if (GDK_IS_TOPLEVEL (window))
parent = NULL;
else if (GDK_IS_POPUP (window))
parent = gdk_popup_get_parent (GDK_POPUP (window));
else
parent = NULL;
pt.x = rect.left;
pt.y = rect.top;
ClientToScreen (GDK_SURFACE_HWND (window), &pt);
if (parent)
ScreenToClient (GDK_SURFACE_HWND (parent), &pt);
rect.left = pt.x;
rect.top = pt.y;
pt.x = rect.right;
pt.y = rect.bottom;
ClientToScreen (GDK_SURFACE_HWND (window), &pt);
if (parent)
ScreenToClient (GDK_SURFACE_HWND (parent), &pt);
rect.right = pt.x;
rect.bottom = pt.y;
if (parent == NULL)
{
rect.left += _gdk_offset_x * impl->surface_scale;
rect.top += _gdk_offset_y * impl->surface_scale;
rect.right += _gdk_offset_x * impl->surface_scale;
rect.bottom += _gdk_offset_y * impl->surface_scale;
}
if (x)
*x = rect.left / impl->surface_scale;
if (y)
*y = rect.top / impl->surface_scale;
if (width)
*width = (rect.right - rect.left) / impl->surface_scale;
if (height)
*height = (rect.bottom - rect.top) / impl->surface_scale;
GDK_NOTE (MISC, g_print ("gdk_win32_surface_get_geometry: %p: %ldx%ld@%+ld%+ld\n",
GDK_SURFACE_HWND (window),
(rect.right - rect.left) / impl->surface_scale,
(rect.bottom - rect.top) / impl->surface_scale,
rect.left, rect.top));
}
}
static void
gdk_win32_surface_get_root_coords (GdkSurface *window,
int x,
int y,
int *root_x,
int *root_y)
{
int tx;
int ty;
POINT pt;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
pt.x = x * impl->surface_scale;
pt.y = y * impl->surface_scale;
ClientToScreen (GDK_SURFACE_HWND (window), &pt);
tx = pt.x;
ty = pt.y;
if (root_x)
*root_x = (tx + _gdk_offset_x) / impl->surface_scale;
if (root_y)
*root_y = (ty + _gdk_offset_y) / impl->surface_scale;
GDK_NOTE (MISC, g_print ("gdk_win32_surface_get_root_coords: %p: %+d%+d %+d%+d\n",
GDK_SURFACE_HWND (window),
x * impl->surface_scale,
y * impl->surface_scale,
(tx + _gdk_offset_x) / impl->surface_scale,
(ty + _gdk_offset_y) / impl->surface_scale));
}
static gboolean
gdk_surface_win32_get_device_state (GdkSurface *window,
GdkDevice *device,
double *x,
double *y,
GdkModifierType *mask)
{
_gdk_device_win32_query_state (device, window, NULL, x, y, mask);
return *x >= 0 && *y >= 0 && *x < window->width && *y < window->height;
}
static void
update_single_bit (LONG *style,
gboolean all,
int gdk_bit,
int style_bit)
{
/* all controls the interpretation of gdk_bit -- if all is TRUE,
* gdk_bit indicates whether style_bit is off; if all is FALSE, gdk
* bit indicate whether style_bit is on
*/
if ((!all && gdk_bit) || (all && !gdk_bit))
*style |= style_bit;
else
*style &= ~style_bit;
}
/*
* Returns TRUE if window has no decorations.
* Usually it means CSD windows, because GTK
* calls gdk_surface_set_decorations (window, 0);
* This is used to decide whether a toplevel should
* be made layered, thus it
* only returns TRUE for toplevels (until GTK minimal
* system requirements are lifted to Windows 8 or newer,
* because only toplevels can be layered).
*/
gboolean
_gdk_win32_surface_lacks_wm_decorations (GdkSurface *window)
{
GdkWin32Surface *impl;
LONG style;
gboolean has_any_decorations;
if (GDK_SURFACE_DESTROYED (window))
return FALSE;
impl = GDK_WIN32_SURFACE (window);
/* This is because GTK calls gdk_surface_set_decorations (window, 0),
* even though GdkWMDecoration docs indicate that 0 does NOT mean
* "no decorations".
*/
if (!impl->decorate_all)
return TRUE;
if (GDK_SURFACE_HWND (window) == 0)
return FALSE;
style = GetWindowLong (GDK_SURFACE_HWND (window), GWL_STYLE);
if (style == 0)
{
DWORD w32_error = GetLastError ();
GDK_NOTE (MISC, g_print ("Failed to get style of window %p (handle %p): %lu\n",
window, GDK_SURFACE_HWND (window), w32_error));
return FALSE;
}
/* Keep this in sync with _gdk_win32_surface_update_style_bits() */
/* We don't check what get_effective_window_decorations()
* has to say, because it gives suggestions based on
* various hints, while we want *actual* decorations,
* or their absence.
*/
has_any_decorations = FALSE;
if (style & (WS_BORDER | WS_THICKFRAME | WS_CAPTION |
WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX))
has_any_decorations = TRUE;
else
GDK_NOTE (MISC, g_print ("Window %p (handle %p): has no decorations (style %lx)\n",
window, GDK_SURFACE_HWND (window), style));
return !has_any_decorations;
}
void
_gdk_win32_surface_update_style_bits (GdkSurface *window)
{
GdkWin32Surface *impl = (GdkWin32Surface *)window;
GdkWMDecoration decorations;
LONG old_style, new_style, old_exstyle, new_exstyle;
gboolean all;
RECT rect, before, after;
gboolean was_topmost;
gboolean will_be_topmost;
HWND insert_after;
UINT flags;
if (window->state & GDK_TOPLEVEL_STATE_FULLSCREEN)
return;
old_style = GetWindowLong (GDK_SURFACE_HWND (window), GWL_STYLE);
old_exstyle = GetWindowLong (GDK_SURFACE_HWND (window), GWL_EXSTYLE);
GetClientRect (GDK_SURFACE_HWND (window), &before);
after = before;
AdjustWindowRectEx (&before, old_style, FALSE, old_exstyle);
was_topmost = (old_exstyle & WS_EX_TOPMOST) ? TRUE : FALSE;
will_be_topmost = was_topmost;
old_exstyle &= ~WS_EX_TOPMOST;
new_style = old_style;
new_exstyle = old_exstyle;
if (GDK_IS_DRAG_SURFACE (window))
{
new_exstyle |= WS_EX_TOOLWINDOW;
will_be_topmost = TRUE;
}
else
{
new_exstyle &= ~WS_EX_TOOLWINDOW;
}
/* We can get away with using layered windows
* only when no decorations are needed. It can mean
* CSD or borderless non-CSD windows (tooltips?).
*
* If this window cannot use layered windows, disable it always.
* This currently applies to windows using OpenGL, which
* does not work with layered windows.
*/
if (impl->suppress_layered == 0)
{
if (_gdk_win32_surface_lacks_wm_decorations (window))
impl->layered = g_strcmp0 (g_getenv ("GDK_WIN32_LAYERED"), "0") != 0;
}
else
impl->layered = FALSE;
if (impl->layered)
new_exstyle |= WS_EX_LAYERED;
else
new_exstyle &= ~WS_EX_LAYERED;
if (get_effective_window_decorations (window, &decorations))
{
all = (decorations & GDK_DECOR_ALL);
/* Keep this in sync with the test in _gdk_win32_surface_lacks_wm_decorations() */
update_single_bit (&new_style, all, decorations & GDK_DECOR_BORDER, WS_BORDER);
update_single_bit (&new_style, all, decorations & GDK_DECOR_RESIZEH, WS_THICKFRAME);
update_single_bit (&new_style, all, decorations & GDK_DECOR_TITLE, WS_CAPTION);
update_single_bit (&new_style, all, decorations & GDK_DECOR_MENU, WS_SYSMENU);
update_single_bit (&new_style, all, decorations & GDK_DECOR_MINIMIZE, WS_MINIMIZEBOX);
update_single_bit (&new_style, all, decorations & GDK_DECOR_MAXIMIZE, WS_MAXIMIZEBOX);
}
if (old_style == new_style && old_exstyle == new_exstyle )
{
GDK_NOTE (MISC, g_print ("_gdk_win32_surface_update_style_bits: %p: no change\n",
GDK_SURFACE_HWND (window)));
return;
}
if (old_style != new_style)
{
GDK_NOTE (MISC, g_print ("_gdk_win32_surface_update_style_bits: %p: STYLE: %s => %s\n",
GDK_SURFACE_HWND (window),
_gdk_win32_surface_style_to_string (old_style),
_gdk_win32_surface_style_to_string (new_style)));
SetWindowLong (GDK_SURFACE_HWND (window), GWL_STYLE, new_style);
}
if (old_exstyle != new_exstyle)
{
GDK_NOTE (MISC, g_print ("_gdk_win32_surface_update_style_bits: %p: EXSTYLE: %s => %s\n",
GDK_SURFACE_HWND (window),
_gdk_win32_surface_exstyle_to_string (old_exstyle),
_gdk_win32_surface_exstyle_to_string (new_exstyle)));
SetWindowLong (GDK_SURFACE_HWND (window), GWL_EXSTYLE, new_exstyle);
}
AdjustWindowRectEx (&after, new_style, FALSE, new_exstyle);
GetWindowRect (GDK_SURFACE_HWND (window), &rect);
rect.left += after.left - before.left;
rect.top += after.top - before.top;
rect.right += after.right - before.right;
rect.bottom += after.bottom - before.bottom;
flags = SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOREPOSITION;
if (will_be_topmost && !was_topmost)
{
insert_after = HWND_TOPMOST;
}
else if (was_topmost && !will_be_topmost)
{
insert_after = HWND_NOTOPMOST;
}
else
{
flags |= SWP_NOZORDER;
insert_after = SWP_NOZORDER_SPECIFIED;
}
SetWindowPos (GDK_SURFACE_HWND (window), insert_after,
rect.left, rect.top,
rect.right - rect.left, rect.bottom - rect.top,
flags);
}
#if defined(MORE_AEROSNAP_DEBUGGING)
static void
log_region (char *prefix, AeroSnapEdgeRegion *region)
{
GDK_NOTE (MISC, g_print ("Region %s:\n"
"edge %d x %d @ %d x %d\n"
"trig %d x %d @ %d x %d\n",
prefix,
region->edge.width,
region->edge.height,
region->edge.x,
region->edge.y,
region->trigger.width,
region->trigger.height,
region->trigger.x,
region->trigger.y));
}
#endif
static void
calculate_aerosnap_regions (GdkW32DragMoveResizeContext *context)
{
GdkDisplay *display;
GListModel *monitors;
int monitor_idx, other_monitor_idx;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (context->window);
#if defined(MORE_AEROSNAP_DEBUGGING)
int i;
#endif
display = gdk_surface_get_display (context->window);
monitors = gdk_display_get_monitors (display);
#define _M_UP 0
#define _M_DOWN 1
#define _M_LEFT 2
#define _M_RIGHT 3
for (monitor_idx = 0; monitor_idx < g_list_model_get_n_items (monitors); monitor_idx++)
{
GdkRectangle wa;
GdkRectangle geometry;
AeroSnapEdgeRegion snap_region;
gboolean move_edge[4] = { TRUE, FALSE, TRUE, TRUE };
gboolean resize_edge[2] = { TRUE, TRUE };
int diff;
int thickness, trigger_thickness;
GdkMonitor *monitor;
monitor = g_list_model_get_item (monitors, monitor_idx);
g_object_unref (monitor);
gdk_win32_monitor_get_workarea (monitor, &wa);
gdk_monitor_get_geometry (monitor, &geometry);
for (other_monitor_idx = 0;
other_monitor_idx < g_list_model_get_n_items (monitors) &&
(move_edge[_M_UP] || move_edge[_M_LEFT] ||
move_edge[_M_RIGHT] || resize_edge[_M_DOWN]);
other_monitor_idx++)
{
GdkRectangle other_wa;
GdkMonitor *other_monitor;
if (other_monitor_idx == monitor_idx)
continue;
other_monitor = g_list_model_get_item (monitors, other_monitor_idx);
g_object_unref (other_monitor);
gdk_win32_monitor_get_workarea (other_monitor, &other_wa);
/* An edge triggers AeroSnap only if there are no
* monitors beyond that edge.
* Even if there's another monitor, but it does not cover
* the whole edge (it's smaller or is not aligned to
* the corner of current monitor), that edge is still
* removed from the trigger list.
*/
if (other_wa.x >= wa.x + wa.width)
move_edge[_M_RIGHT] = FALSE;
if (other_wa.x + other_wa.width <= wa.x)
move_edge[_M_LEFT] = FALSE;
if (other_wa.y + other_wa.height <= wa.y)
{
move_edge[_M_UP] = FALSE;
resize_edge[_M_UP] = FALSE;
}
if (other_wa.y >= wa.y + wa.height)
{
/* no move_edge for the bottom edge, just resize_edge */
resize_edge[_M_DOWN] = FALSE;
}
}
thickness = AEROSNAP_REGION_THICKNESS * impl->surface_scale;
trigger_thickness = AEROSNAP_REGION_TRIGGER_THICKNESS * impl->surface_scale;
snap_region.edge = wa;
snap_region.trigger = wa;
snap_region.edge.height = thickness;
snap_region.trigger.height = trigger_thickness;
/* Extend both regions into toolbar space.
* When there's no toolbar, diff == 0.
*/
diff = wa.y - geometry.y;
snap_region.edge.height += diff;
snap_region.edge.y -= diff;
snap_region.trigger.height += diff;
snap_region.trigger.y -= diff;
if (move_edge[_M_UP])
g_array_append_val (context->maximize_regions, snap_region);
if (resize_edge[_M_UP])
g_array_append_val (context->fullup_regions, snap_region);
snap_region.edge = wa;
snap_region.trigger = wa;
snap_region.edge.width = thickness;
snap_region.trigger.width = trigger_thickness;
diff = wa.x - geometry.x;
snap_region.edge.width += diff;
snap_region.edge.x -= diff;
snap_region.trigger.width += diff;
snap_region.trigger.x -= diff;
if (move_edge[_M_LEFT])
g_array_append_val (context->halfleft_regions, snap_region);
snap_region.edge = wa;
snap_region.trigger = wa;
snap_region.edge.x += wa.width - thickness;
snap_region.edge.width = thickness;
snap_region.trigger.x += wa.width - trigger_thickness;
snap_region.trigger.width = trigger_thickness;
diff = (geometry.x + geometry.width) - (wa.x + wa.width);
snap_region.edge.width += diff;
snap_region.trigger.width += diff;
if (move_edge[_M_RIGHT])
g_array_append_val (context->halfright_regions, snap_region);
snap_region.edge = wa;
snap_region.trigger = wa;
snap_region.edge.y += wa.height - thickness;
snap_region.edge.height = thickness;
snap_region.trigger.y += wa.height - trigger_thickness;
snap_region.trigger.height = trigger_thickness;
diff = (geometry.y + geometry.height) - (wa.y + wa.height);
snap_region.edge.height += diff;
snap_region.trigger.height += diff;
if (resize_edge[_M_DOWN])
g_array_append_val (context->fullup_regions, snap_region);
}
#undef _M_UP
#undef _M_DOWN
#undef _M_LEFT
#undef _M_RIGHT
#if defined(MORE_AEROSNAP_DEBUGGING)
for (i = 0; i < context->maximize_regions->len; i++)
log_region ("maximize", &g_array_index (context->maximize_regions, AeroSnapEdgeRegion, i));
for (i = 0; i < context->halfleft_regions->len; i++)
log_region ("halfleft", &g_array_index (context->halfleft_regions, AeroSnapEdgeRegion, i));
for (i = 0; i < context->halfright_regions->len; i++)
log_region ("halfright", &g_array_index (context->halfright_regions, AeroSnapEdgeRegion, i));
for (i = 0; i < context->fullup_regions->len; i++)
log_region ("fullup", &g_array_index (context->fullup_regions, AeroSnapEdgeRegion, i));
#endif
}
static void
discard_snapinfo (GdkSurface *window)
{
GdkWin32Surface *impl;
impl = GDK_WIN32_SURFACE (window);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_UNDETERMINED;
if (impl->snap_stash == NULL)
return;
g_clear_pointer (&impl->snap_stash, g_free);
g_clear_pointer (&impl->snap_stash_int, g_free);
}
static void
unsnap (GdkSurface *window,
GdkMonitor *monitor)
{
GdkWin32Surface *impl;
GdkRectangle rect;
impl = GDK_WIN32_SURFACE (window);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_UNDETERMINED;
if (impl->snap_stash == NULL)
return;
gdk_win32_monitor_get_workarea (monitor, &rect);
GDK_NOTE (MISC, g_print ("Monitor work area %d x %d @ %d : %d\n", rect.width, rect.height, rect.x, rect.y));
if (rect.width >= impl->snap_stash_int->width &&
rect.height >= impl->snap_stash_int->height)
{
/* If the window fits into new work area without resizing it,
* place it into new work area without resizing it.
*/
double left, right, up, down, hratio, vratio;
double hscale, vscale;
double new_left, new_up;
left = impl->snap_stash->x;
right = 1.0 - (impl->snap_stash->x + impl->snap_stash->width);
up = impl->snap_stash->y;
down = 1.0 - (impl->snap_stash->y + impl->snap_stash->height);
hscale = 1.0;
if (right > 0.001)
{
hratio = left / right;
hscale = hratio / (1.0 + hratio);
}
new_left = (double) (rect.width - impl->snap_stash_int->width) * hscale;
vscale = 1.0;
if (down > 0.001)
{
vratio = up / down;
vscale = vratio / (1.0 + vratio);
}
new_up = (double) (rect.height - impl->snap_stash_int->height) * vscale;
rect.x = round (rect.x + new_left);
rect.y = round (rect.y + new_up);
rect.width = impl->snap_stash_int->width;
rect.height = impl->snap_stash_int->height;
}
else
{
/* Calculate actual unsnapped window size based on its
* old relative size. Same for position.
*/
rect.x += round (rect.width * impl->snap_stash->x);
rect.y += round (rect.height * impl->snap_stash->y);
rect.width = round (rect.width * impl->snap_stash->width);
rect.height = round (rect.height * impl->snap_stash->height);
}
GDK_NOTE (MISC, g_print ("Unsnapped window size %d x %d @ %d : %d\n", rect.width, rect.height, rect.x, rect.y));
gdk_win32_surface_move_resize (window, rect.x, rect.y,
rect.width, rect.height);
g_clear_pointer (&impl->snap_stash, g_free);
g_clear_pointer (&impl->snap_stash_int, g_free);
}
static void
stash_window (GdkSurface *window,
GdkWin32Surface *impl)
{
int x, y;
int width, wwidth;
int height, wheight;
WINDOWPLACEMENT placement;
HMONITOR hmonitor;
MONITORINFO hmonitor_info;
placement.length = sizeof(WINDOWPLACEMENT);
/* Use W32 API to get unmaximized window size, which GDK doesn't remember */
if (!GetWindowPlacement (GDK_SURFACE_HWND (window), &placement))
return;
/* MSDN is very vague, but in practice rcNormalPosition is the same as GetWindowRect(),
* only with adjustments for toolbars (which creates rather weird coordinate space issues).
* We need to get monitor info and apply workarea vs monitorarea diff to turn
* these into screen coordinates proper.
*/
hmonitor = MonitorFromWindow (GDK_SURFACE_HWND (window), MONITOR_DEFAULTTONEAREST);
hmonitor_info.cbSize = sizeof (hmonitor_info);
if (!GetMonitorInfoA (hmonitor, &hmonitor_info))
return;
if (impl->snap_stash == NULL)
impl->snap_stash = g_new0 (GdkRectangleDouble, 1);
if (impl->snap_stash_int == NULL)
impl->snap_stash_int = g_new0 (GdkRectangle, 1);
GDK_NOTE (MISC, g_print ("monitor work area %ld x %ld @ %ld : %ld\n",
(hmonitor_info.rcWork.right - hmonitor_info.rcWork.left) / impl->surface_scale,
(hmonitor_info.rcWork.bottom - hmonitor_info.rcWork.top) / impl->surface_scale,
hmonitor_info.rcWork.left,
hmonitor_info.rcWork.top));
GDK_NOTE (MISC, g_print ("monitor area %ld x %ld @ %ld : %ld\n",
(hmonitor_info.rcMonitor.right - hmonitor_info.rcMonitor.left) / impl->surface_scale,
(hmonitor_info.rcMonitor.bottom - hmonitor_info.rcMonitor.top) / impl->surface_scale,
hmonitor_info.rcMonitor.left,
hmonitor_info.rcMonitor.top));
GDK_NOTE (MISC, g_print ("window work place %ld x %ld @ %ld : %ld\n",
(placement.rcNormalPosition.right - placement.rcNormalPosition.left) / impl->surface_scale,
(placement.rcNormalPosition.bottom - placement.rcNormalPosition.top) / impl->surface_scale,
placement.rcNormalPosition.left,
placement.rcNormalPosition.top));
width = (placement.rcNormalPosition.right - placement.rcNormalPosition.left) / impl->surface_scale;
height = (placement.rcNormalPosition.bottom - placement.rcNormalPosition.top) / impl->surface_scale;
x = (placement.rcNormalPosition.left - hmonitor_info.rcMonitor.left) / impl->surface_scale;
y = (placement.rcNormalPosition.top - hmonitor_info.rcMonitor.top) / impl->surface_scale;
wwidth = (hmonitor_info.rcWork.right - hmonitor_info.rcWork.left) / impl->surface_scale;
wheight = (hmonitor_info.rcWork.bottom - hmonitor_info.rcWork.top) / impl->surface_scale;
impl->snap_stash->x = (double) (x) / (double) (wwidth);
impl->snap_stash->y = (double) (y) / (double) (wheight);
impl->snap_stash->width = (double) width / (double) (wwidth);
impl->snap_stash->height = (double) height / (double) (wheight);
impl->snap_stash_int->x = x;
impl->snap_stash_int->y = y;
impl->snap_stash_int->width = width;
impl->snap_stash_int->height = height;
GDK_NOTE (MISC, g_print ("Stashed window %d x %d @ %d : %d as %f x %f @ %f : %f\n",
width, height, x, y,
impl->snap_stash->width, impl->snap_stash->height, impl->snap_stash->x, impl->snap_stash->y));
}
static void
snap_up (GdkSurface *window)
{
SHORT maxysize;
int x, y;
int width, height;
GdkWin32Surface *impl;
impl = GDK_WIN32_SURFACE (window);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_FULLUP;
impl->resized = FALSE;
stash_window (window, impl);
maxysize = GetSystemMetrics (SM_CYVIRTUALSCREEN) / impl->surface_scale;
x = y = 0;
width = gdk_surface_get_width (window);
y = 0;
height = maxysize;
x = x - impl->shadow.left;
y = y - impl->shadow.top;
width += impl->shadow_x;
height += impl->shadow_y;
/* XXX: FIXME, AeroSnap snap_up() not really working well,
*
* * The snap_up() puts the window at the top left corner.
* * Without the following call, the height maximizes but we see a spew of
* "GdkToplevelSize: geometry size (x,y) exceeds bounds" warnings
*/
compute_toplevel_size (window, TRUE, &width, &height);
gdk_win32_surface_move_resize (window, x, y, width, height);
}
static void
snap_left (GdkSurface *window,
GdkMonitor *monitor,
GdkMonitor *snap_monitor)
{
GdkRectangle rect;
GdkWin32Surface *impl;
impl = GDK_WIN32_SURFACE (window);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_HALFLEFT;
impl->resized = FALSE;
gdk_win32_monitor_get_workarea (snap_monitor, &rect);
stash_window (window, impl);
rect.width = rect.width / 2;
rect.x = rect.x - impl->shadow.left;
rect.y = rect.y - impl->shadow.top;
rect.width = rect.width + impl->shadow_x;
rect.height = rect.height + impl->shadow_y;
gdk_win32_surface_move_resize (window,
rect.x, rect.y,
rect.width, rect.height);
}
static void
snap_right (GdkSurface *window,
GdkMonitor *monitor,
GdkMonitor *snap_monitor)
{
GdkRectangle rect;
GdkWin32Surface *impl;
impl = GDK_WIN32_SURFACE (window);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_HALFRIGHT;
impl->resized = FALSE;
gdk_win32_monitor_get_workarea (snap_monitor, &rect);
stash_window (window, impl);
rect.width = rect.width / 2;
rect.x += rect.width;
rect.x = rect.x - impl->shadow.left;
rect.y = rect.y - impl->shadow.top;
rect.width = rect.width + impl->shadow_x;
rect.height = rect.height + impl->shadow_y;
gdk_win32_surface_move_resize (window,
rect.x, rect.y,
rect.width, rect.height);
}
static void
gdk_win32_surface_maximize (GdkSurface *window);
static void
gdk_win32_surface_unmaximize (GdkSurface *window);
static void
gdk_win32_surface_minimize (GdkSurface *window);
void
_gdk_win32_surface_handle_aerosnap (GdkSurface *window,
GdkWin32AeroSnapCombo combo)
{
GdkWin32Surface *impl;
GdkDisplay *display;
GListModel *monitors;
int n_monitors;
GdkToplevelState surface_state = gdk_toplevel_get_state (GDK_TOPLEVEL (window));
gboolean minimized = surface_state & GDK_TOPLEVEL_STATE_MINIMIZED;
gboolean maximized = surface_state & GDK_TOPLEVEL_STATE_MAXIMIZED;
gboolean halfsnapped;
GdkMonitor *monitor;
impl = GDK_WIN32_SURFACE (window);
display = gdk_surface_get_display (window);
monitors = gdk_display_get_monitors (display);
n_monitors = g_list_model_get_n_items (monitors);
monitor = gdk_display_get_monitor_at_surface (display, window);
if (minimized && maximized)
minimized = FALSE;
halfsnapped = (impl->snap_state == GDK_WIN32_AEROSNAP_STATE_HALFRIGHT ||
impl->snap_state == GDK_WIN32_AEROSNAP_STATE_HALFLEFT ||
impl->snap_state == GDK_WIN32_AEROSNAP_STATE_FULLUP);
switch (combo)
{
case GDK_WIN32_AEROSNAP_COMBO_NOTHING:
/* Do nothing */
break;
case GDK_WIN32_AEROSNAP_COMBO_UP:
if (!maximized)
{
unsnap (window, monitor);
gdk_win32_surface_maximize (window);
}
break;
case GDK_WIN32_AEROSNAP_COMBO_DOWN:
case GDK_WIN32_AEROSNAP_COMBO_SHIFTDOWN:
if (maximized)
{
gdk_win32_surface_unmaximize (window);
unsnap (window, monitor);
}
else if (halfsnapped)
unsnap (window, monitor);
else if (!minimized)
gdk_win32_surface_minimize (window);
break;
case GDK_WIN32_AEROSNAP_COMBO_LEFT:
if (maximized)
gdk_win32_surface_unmaximize (window);
if (impl->snap_state == GDK_WIN32_AEROSNAP_STATE_UNDETERMINED ||
impl->snap_state == GDK_WIN32_AEROSNAP_STATE_FULLUP)
{
unsnap (window, monitor);
snap_left (window, monitor, monitor);
}
else if (impl->snap_state == GDK_WIN32_AEROSNAP_STATE_HALFLEFT)
{
GdkMonitor *other;
unsnap (window, monitor);
if (gdk_win32_display_get_primary_monitor (monitor->display) == monitor)
other = g_object_ref (monitor);
else
other = g_list_model_get_item (monitors, n_monitors - 1);
snap_right (window, monitor, other);
g_object_unref (other);
}
else if (impl->snap_state == GDK_WIN32_AEROSNAP_STATE_HALFRIGHT)
{
unsnap (window, monitor);
}
break;
case GDK_WIN32_AEROSNAP_COMBO_RIGHT:
if (maximized)
gdk_win32_surface_unmaximize (window);
if (impl->snap_state == GDK_WIN32_AEROSNAP_STATE_UNDETERMINED ||
impl->snap_state == GDK_WIN32_AEROSNAP_STATE_FULLUP)
{
unsnap (window, monitor);
snap_right (window, monitor, monitor);
}
else if (impl->snap_state == GDK_WIN32_AEROSNAP_STATE_HALFLEFT)
{
unsnap (window, monitor);
}
else if (impl->snap_state == GDK_WIN32_AEROSNAP_STATE_HALFRIGHT)
{
GdkMonitor *other;
int i;
unsnap (window, monitor);
for (i = 0; i < n_monitors; i++)
{
other = g_list_model_get_item (monitors, i);
g_object_unref (other);
if (monitor == other)
break;
}
other = g_list_model_get_item (monitors, (i + 1) % n_monitors);
snap_left (window, monitor, other);
g_object_unref (other);
}
break;
case GDK_WIN32_AEROSNAP_COMBO_SHIFTUP:
if (!maximized &&
impl->snap_state == GDK_WIN32_AEROSNAP_STATE_UNDETERMINED)
{
snap_up (window);
}
break;
case GDK_WIN32_AEROSNAP_COMBO_SHIFTLEFT:
case GDK_WIN32_AEROSNAP_COMBO_SHIFTRIGHT:
/* No implementation needed at the moment */
break;
}
}
static void
apply_snap (GdkSurface *window,
GdkWin32AeroSnapState snap)
{
GdkMonitor *monitor;
GdkDisplay *display;
display = gdk_surface_get_display (window);
monitor = gdk_display_get_monitor_at_surface (display, window);
switch (snap)
{
case GDK_WIN32_AEROSNAP_STATE_UNDETERMINED:
break;
case GDK_WIN32_AEROSNAP_STATE_MAXIMIZE:
unsnap (window, monitor);
gdk_win32_surface_maximize (window);
break;
case GDK_WIN32_AEROSNAP_STATE_HALFLEFT:
unsnap (window, monitor);
snap_left (window, monitor, monitor);
break;
case GDK_WIN32_AEROSNAP_STATE_HALFRIGHT:
unsnap (window, monitor);
snap_right (window, monitor, monitor);
break;
case GDK_WIN32_AEROSNAP_STATE_FULLUP:
snap_up (window);
break;
}
}
/* Registers a dumb window class. This window
* has DefWindowProc() for a window procedure and
* does not do anything that GdkSurface-bound HWNDs do.
*/
static ATOM
RegisterGdkDumbClass ()
{
static ATOM klassDUMB = 0;
static WNDCLASSEXW wcl;
ATOM klass = 0;
wcl.cbSize = sizeof (WNDCLASSEX);
wcl.style = 0; /* DON'T set CS_<H,V>REDRAW. It causes total redraw
* on WM_SIZE and WM_MOVE. Flicker, Performance!
*/
wcl.lpfnWndProc = DefWindowProcW;
wcl.cbClsExtra = 0;
wcl.cbWndExtra = 0;
wcl.hInstance = _gdk_dll_hinstance;
wcl.hIcon = 0;
wcl.hIconSm = 0;
wcl.lpszMenuName = NULL;
wcl.hbrBackground = NULL;
wcl.hCursor = LoadCursor (NULL, IDC_ARROW);
wcl.style |= CS_OWNDC;
wcl.lpszClassName = L"gdkSurfaceDumb";
if (klassDUMB == 0)
klassDUMB = RegisterClassExW (&wcl);
klass = klassDUMB;
if (klass == 0)
{
WIN32_API_FAILED ("RegisterClassExW");
g_error ("That is a fatal error");
}
return klass;
}
static gboolean
ensure_snap_indicator_exists (GdkW32DragMoveResizeContext *context)
{
if (context->shape_indicator == NULL)
{
HWND handle;
ATOM klass;
klass = RegisterGdkDumbClass ();
handle = CreateWindowExW (WS_EX_TRANSPARENT | WS_EX_LAYERED | WS_EX_NOACTIVATE,
MAKEINTRESOURCEW (klass),
L"",
WS_POPUP,
0,
0,
0, 0,
NULL,
NULL,
_gdk_dll_hinstance,
NULL);
context->shape_indicator = handle;
}
return context->shape_indicator != NULL;
}
static gboolean
ensure_snap_indicator_surface (GdkW32DragMoveResizeContext *context,
int width,
int height,
guint scale)
{
if (context->indicator_surface != NULL &&
(context->indicator_surface_width < width ||
context->indicator_surface_height < height))
{
cairo_surface_destroy (context->indicator_surface);
context->indicator_surface = NULL;
}
if (context->indicator_surface == NULL)
context->indicator_surface = cairo_win32_surface_create_with_dib (CAIRO_FORMAT_ARGB32,
width * scale,
height * scale);
if (cairo_surface_status (context->indicator_surface) != CAIRO_STATUS_SUCCESS)
{
cairo_surface_destroy (context->indicator_surface);
context->indicator_surface = NULL;
return FALSE;
}
return TRUE;
}
/* Indicator is drawn with some inward offset, so that it does
* not hug screen edges.
*/
static void
adjust_indicator_rectangle (GdkRectangle *rect,
gboolean inward)
{
double inverter;
const int gap = AEROSNAP_INDICATOR_EDGE_GAP;
#if defined(MORE_AEROSNAP_DEBUGGING)
GdkRectangle cache = *rect;
#endif
if (inward)
inverter = 1.0;
else
inverter = -1.0;
rect->x += (gap * inverter);
rect->y += (gap * inverter);
rect->width -= (gap * 2 * inverter);
rect->height -= (gap * 2 * inverter);
#if defined(MORE_AEROSNAP_DEBUGGING)
GDK_NOTE (MISC, g_print ("Adjusted %d x %d @ %d : %d -> %d x %d @ %d : %d\n",
cache.width, cache.height, cache.x, cache.y,
rect->width, rect->height, rect->x, rect->y));
#endif
}
static void
rounded_rectangle (cairo_t *cr,
int x,
int y,
int width,
int height,
double radius,
double line_width,
GdkRGBA *fill,
GdkRGBA *outline)
{
double degrees = M_PI / 180.0;
if (fill == NULL && outline == NULL)
return;
cairo_save (cr);
cairo_new_sub_path (cr);
cairo_arc (cr, x + width - radius, y + radius, radius, -90 * degrees, 0 * degrees);
cairo_arc (cr, x + width - radius, y + height - radius, radius, 0 * degrees, 90 * degrees);
cairo_arc (cr, (x + radius), y + height - radius, radius, 90 * degrees, 180 * degrees);
cairo_arc (cr, (x + radius), (y + radius), radius, 180 * degrees, 270 * degrees);
cairo_close_path (cr);
if (fill)
{
cairo_set_source_rgba (cr, fill->red, fill->green, fill->blue, fill->alpha);
if (outline)
cairo_fill_preserve (cr);
else
cairo_fill (cr);
}
if (outline)
{
cairo_set_source_rgba (cr, outline->red, outline->green, outline->blue, outline->alpha);
cairo_set_line_width (cr, line_width);
cairo_stroke (cr);
}
cairo_restore (cr);
}
/* Translates linear animation scale into some kind of curve */
static double
curve (double val)
{
/* TODO: try different curves. For now it's just linear */
return val;
}
static gboolean
draw_indicator (GdkW32DragMoveResizeContext *context,
gint64 timestamp)
{
cairo_t *cr;
GdkRGBA outline = {0, 0, 1.0, 1.0};
GdkRGBA fill = {0, 0, 1.0, 0.8};
GdkRectangle current_rect;
gint64 current_time = g_get_monotonic_time ();
double animation_progress;
gboolean last_draw;
double line_width;
double corner_radius;
gint64 animation_duration;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (context->window);
line_width = AEROSNAP_INDICATOR_LINE_WIDTH * impl->surface_scale;
corner_radius = AEROSNAP_INDICATOR_CORNER_RADIUS;
animation_duration = AEROSNAP_INDICATOR_ANIMATION_DURATION;
last_draw = FALSE;
if (timestamp == 0 &&
current_time - context->indicator_start_time > animation_duration)
{
timestamp = context->indicator_start_time + animation_duration;
last_draw = TRUE;
}
if (timestamp != 0)
current_time = timestamp;
animation_progress = (double) (current_time - context->indicator_start_time) / animation_duration;
if (animation_progress > 1.0)
animation_progress = 1.0;
if (animation_progress < 0)
animation_progress = 0;
animation_progress = curve (animation_progress);
current_rect = context->indicator_start;
current_rect.x += (context->indicator_target.x - context->indicator_start.x) * animation_progress;
current_rect.y += (context->indicator_target.y - context->indicator_start.y) * animation_progress;
current_rect.width += (context->indicator_target.width - context->indicator_start.width) * animation_progress;
current_rect.height += (context->indicator_target.height - context->indicator_start.height) * animation_progress;
if (context->op == GDK_WIN32_DRAGOP_RESIZE && last_draw)
{
switch (context->edge)
{
case GDK_SURFACE_EDGE_NORTH_WEST:
current_rect.x = context->indicator_target.x + (context->indicator_target.width - current_rect.width);
current_rect.y = context->indicator_target.y + (context->indicator_target.height - current_rect.height);
break;
case GDK_SURFACE_EDGE_NORTH:
current_rect.y = context->indicator_target.y + (context->indicator_target.height - current_rect.height);
break;
case GDK_SURFACE_EDGE_WEST:
current_rect.x = context->indicator_target.x + (context->indicator_target.width - current_rect.width);
break;
case GDK_SURFACE_EDGE_SOUTH_WEST:
current_rect.x = context->indicator_target.x + (context->indicator_target.width - current_rect.width);
current_rect.y = context->indicator_target.y;
break;
case GDK_SURFACE_EDGE_NORTH_EAST:
current_rect.x = context->indicator_target.x;
current_rect.y = context->indicator_target.y + (context->indicator_target.height - current_rect.height);
break;
case GDK_SURFACE_EDGE_SOUTH_EAST:
current_rect.x = context->indicator_target.x;
current_rect.y = context->indicator_target.y;
break;
case GDK_SURFACE_EDGE_SOUTH:
current_rect.y = context->indicator_target.y;
break;
case GDK_SURFACE_EDGE_EAST:
current_rect.x = context->indicator_target.x;
break;
}
}
cr = cairo_create (context->indicator_surface);
rounded_rectangle (cr,
(current_rect.x - context->indicator_window_rect.x) * impl->surface_scale,
(current_rect.y - context->indicator_window_rect.y) * impl->surface_scale,
current_rect.width * impl->surface_scale,
current_rect.height * impl->surface_scale,
corner_radius,
line_width,
&fill, &outline);
cairo_destroy (cr);
#if defined(MORE_AEROSNAP_DEBUGGING)
GDK_NOTE (MISC, g_print ("Indicator is %d x %d @ %d : %d; current time is %" G_GINT64_FORMAT "\n",
current_rect.width, current_rect.height,
current_rect.x - context->indicator_window_rect.x,
current_rect.y - context->indicator_window_rect.y,
current_time));
#endif
return last_draw;
}
static gboolean
redraw_indicator (gpointer user_data)
{
GdkW32DragMoveResizeContext *context = user_data;
POINT window_position;
SIZE window_size;
BLENDFUNCTION blender;
HDC hdc;
POINT source_point = { 0, 0 };
gboolean last_draw;
double indicator_opacity;
GdkWin32Surface *impl;
gboolean do_source_remove = FALSE;
indicator_opacity = AEROSNAP_INDICATOR_OPACITY;
if (GDK_SURFACE_DESTROYED (context->window) ||
!ensure_snap_indicator_exists (context))
{
do_source_remove = TRUE;
}
impl = GDK_WIN32_SURFACE (context->window);
if (!ensure_snap_indicator_surface (context,
context->indicator_window_rect.width,
context->indicator_window_rect.height,
impl->surface_scale))
{
do_source_remove = TRUE;
}
if (do_source_remove)
{
context->timer = 0;
return G_SOURCE_REMOVE;
}
last_draw = draw_indicator (context, context->draw_timestamp);
window_position.x = (context->indicator_window_rect.x - _gdk_offset_x) * impl->surface_scale;
window_position.y = (context->indicator_window_rect.y - _gdk_offset_y) * impl->surface_scale;
window_size.cx = context->indicator_window_rect.width * impl->surface_scale;
window_size.cy = context->indicator_window_rect.height * impl->surface_scale;
blender.BlendOp = AC_SRC_OVER;
blender.BlendFlags = 0;
blender.AlphaFormat = AC_SRC_ALPHA;
blender.SourceConstantAlpha = 255 * indicator_opacity;
hdc = cairo_win32_surface_get_dc (context->indicator_surface);
API_CALL (SetWindowPos, (context->shape_indicator,
GDK_SURFACE_HWND (context->window),
0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_NOREDRAW | SWP_SHOWWINDOW | SWP_NOACTIVATE));
#if defined(MORE_AEROSNAP_DEBUGGING)
GDK_NOTE (MISC, g_print ("Indicator window position is %ld x %ld @ %ld : %ld\n",
window_size.cx, window_size.cy,
window_position.x, window_position.y));
#endif
API_CALL (UpdateLayeredWindow, (context->shape_indicator, NULL,
&window_position, &window_size,
hdc, &source_point,
0, &blender, ULW_ALPHA));
if (last_draw)
context->timer = 0;
return last_draw ? G_SOURCE_REMOVE : G_SOURCE_CONTINUE;
}
static GdkRectangle
unity_of_rects (GdkRectangle a,
GdkRectangle b)
{
GdkRectangle u = b;
if (a.x < u.x)
{
u.width += u.x - a.x;
u.x = a.x;
}
if (a.y < u.y)
{
u.height += (u.y - a.y);
u.y = a.y;
}
if (a.x + a.width > u.x + u.width)
u.width += (a.x + a.width) - (u.x + u.width);
if (a.y + a.height > u.y + u.height)
u.height += (a.y + a.height) - (u.y + u.height);
#if defined(MORE_AEROSNAP_DEBUGGING)
GDK_NOTE (MISC, g_print ("Unified 2 rects into %d x %d @ %d : %d\n",
u.width, u.height, u.x, u.y));
#endif
return u;
}
static void
start_indicator_drawing (GdkW32DragMoveResizeContext *context,
GdkRectangle from,
GdkRectangle to,
guint scale)
{
GdkRectangle to_adjusted, from_adjusted, from_or_to;
gint64 indicator_animation_tick = AEROSNAP_INDICATOR_ANIMATION_TICK;
GDK_NOTE (MISC, g_print ("Start drawing snap indicator %d x %d @ %d : %d -> %d x %d @ %d : %d\n",
from.width * scale, from.height * scale, from.x, from.y, to.width * scale, to.height * scale, to.x, to.y));
if (GDK_SURFACE_DESTROYED (context->window))
return;
if (!ensure_snap_indicator_exists (context))
return;
from_or_to = unity_of_rects (from, to);
if (!ensure_snap_indicator_surface (context, from_or_to.width, from_or_to.height, scale))
return;
to_adjusted = to;
adjust_indicator_rectangle (&to_adjusted, TRUE);
from_adjusted = from;
adjust_indicator_rectangle (&from_adjusted, TRUE);
context->draw_timestamp = 0;
context->indicator_start = from_adjusted;
context->indicator_target = to_adjusted;
context->indicator_window_rect = from_or_to;
context->indicator_start_time = g_get_monotonic_time ();
if (context->timer)
{
g_source_remove (context->timer);
context->timer = 0;
}
context->timer = g_timeout_add_full (G_PRIORITY_DEFAULT,
indicator_animation_tick,
redraw_indicator,
context,
NULL);
}
static void
update_fullup_indicator (GdkSurface *window,
GdkW32DragMoveResizeContext *context)
{
SHORT maxysize;
GdkRectangle from, to;
GdkRectangle to_adjusted, from_adjusted, from_or_to;
GdkWin32Surface *impl;
GDK_NOTE (MISC, g_print ("Update fullup indicator\n"));
if (GDK_SURFACE_DESTROYED (context->window))
return;
if (context->shape_indicator == NULL)
return;
impl = GDK_WIN32_SURFACE (window);
maxysize = GetSystemMetrics (SM_CYVIRTUALSCREEN);
to.x = to.y = 0;
to.width = gdk_surface_get_width (window);
to.height = gdk_surface_get_height (window);
to.y = 0;
to.height = maxysize;
from = context->indicator_target;
if (context->timer == 0)
{
from_adjusted = from;
adjust_indicator_rectangle (&from_adjusted, FALSE);
GDK_NOTE (MISC, g_print ("Restart fullup animation from %d x %d @ %d : %d -> %d x %d @ %d x %d\n",
context->indicator_target.width, context->indicator_target.height,
context->indicator_target.x, context->indicator_target.y,
to.width, to.height, to.x, to.y));
start_indicator_drawing (context, from_adjusted, to, impl->surface_scale);
return;
}
from_or_to = unity_of_rects (from, to);
to_adjusted = to;
adjust_indicator_rectangle (&to_adjusted, TRUE);
GDK_NOTE (MISC, g_print ("Retarget fullup animation %d x %d @ %d : %d -> %d x %d @ %d x %d\n",
context->indicator_target.width, context->indicator_target.height,
context->indicator_target.x, context->indicator_target.y,
to_adjusted.width, to_adjusted.height, to_adjusted.x, to_adjusted.y));
context->indicator_target = to_adjusted;
context->indicator_window_rect = from_or_to;
ensure_snap_indicator_surface (context, from_or_to.width, from_or_to.height, impl->surface_scale);
}
static GdkMonitor *
get_monitor_at_point (GdkDisplay *display,
int x,
int y)
{
GListModel *monitors;
GdkMonitor *nearest = NULL;
int nearest_dist = G_MAXINT;
guint i;
monitors = gdk_display_get_monitors (display);
for (i = 0; i < g_list_model_get_n_items (monitors); i++)
{
GdkMonitor *monitor;
GdkRectangle geometry;
int dist_x, dist_y, dist;
monitor = g_list_model_get_item (monitors, i);
gdk_monitor_get_geometry (monitor, &geometry);
if (x < geometry.x)
dist_x = geometry.x - x;
else if (geometry.x + geometry.width <= x)
dist_x = x - (geometry.x + geometry.width) + 1;
else
dist_x = 0;
if (y < geometry.y)
dist_y = geometry.y - y;
else if (geometry.y + geometry.height <= y)
dist_y = y - (geometry.y + geometry.height) + 1;
else
dist_y = 0;
dist = dist_x + dist_y;
if (dist < nearest_dist)
{
nearest_dist = dist;
nearest = monitor;
}
if (x < geometry.x)
dist_x = geometry.x - x;
else if (geometry.x + geometry.width <= x)
dist_x = x - (geometry.x + geometry.width) + 1;
else
dist_x = 0;
if (y < geometry.y)
dist_y = geometry.y - y;
else if (geometry.y + geometry.height <= y)
dist_y = y - (geometry.y + geometry.height) + 1;
else
dist_y = 0;
dist = dist_x + dist_y;
if (dist < nearest_dist)
{
nearest_dist = dist;
nearest = monitor;
}
g_object_unref (monitor);
if (nearest_dist == 0)
break;
}
return nearest;
}
static void
start_indicator (GdkSurface *window,
GdkW32DragMoveResizeContext *context,
int x,
int y,
GdkWin32AeroSnapState state)
{
GdkMonitor *monitor;
GdkRectangle workarea;
SHORT maxysize;
GdkRectangle start_size, end_size;
GdkDisplay *display;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
display = gdk_surface_get_display (window);
monitor = get_monitor_at_point (display, x, y);
gdk_win32_monitor_get_workarea (monitor, &workarea);
maxysize = GetSystemMetrics (SM_CYVIRTUALSCREEN) / impl->surface_scale;
start_size.x = start_size.y = 0;
start_size.width = gdk_surface_get_width (window);
start_size.height = gdk_surface_get_height (window);
end_size = start_size;
switch (state)
{
case GDK_WIN32_AEROSNAP_STATE_UNDETERMINED:
return;
case GDK_WIN32_AEROSNAP_STATE_MAXIMIZE:
end_size.x = workarea.x;
end_size.y = workarea.y;
end_size.width = workarea.width;
end_size.height = workarea.height;
break;
case GDK_WIN32_AEROSNAP_STATE_HALFLEFT:
end_size.x = workarea.x;
end_size.y = workarea.y;
end_size.width = workarea.width / 2;
end_size.height = workarea.height;
break;
case GDK_WIN32_AEROSNAP_STATE_HALFRIGHT:
end_size.x = (workarea.x + workarea.width / 2);
end_size.y = workarea.y;
end_size.width = workarea.width / 2;
end_size.height = workarea.height;
break;
case GDK_WIN32_AEROSNAP_STATE_FULLUP:
end_size.y = 0;
end_size.height = maxysize;
break;
}
start_indicator_drawing (context, start_size, end_size, impl->surface_scale);
}
static void
stop_indicator (GdkSurface *window,
GdkW32DragMoveResizeContext *context)
{
GDK_NOTE (MISC, g_print ("Stop drawing snap indicator\n"));
if (context->timer)
{
g_source_remove (context->timer);
context->timer = 0;
}
API_CALL (SetWindowPos, (context->shape_indicator,
SWP_NOZORDER_SPECIFIED,
0, 0, 0, 0,
SWP_NOZORDER | SWP_NOMOVE |
SWP_NOSIZE | SWP_NOREDRAW | SWP_HIDEWINDOW | SWP_NOACTIVATE));
}
static int
point_in_aerosnap_region (int x,
int y,
AeroSnapEdgeRegion *region)
{
int edge, trigger;
edge = (x >= region->edge.x &&
y >= region->edge.y &&
x <= region->edge.x + region->edge.width &&
y <= region->edge.y + region->edge.height) ? 1 : 0;
trigger = (x >= region->trigger.x &&
y >= region->trigger.y &&
x <= region->trigger.x + region->trigger.width &&
y <= region->trigger.y + region->trigger.height) ? 1 : 0;
return edge + trigger;
}
static void
handle_aerosnap_move_resize (GdkSurface *window,
GdkW32DragMoveResizeContext *context,
int x,
int y)
{
int i;
AeroSnapEdgeRegion *reg;
int maximize = 0;
int halfleft = 0;
int halfright = 0;
int fullup = 0;
gboolean fullup_edge = FALSE;
if (context->op == GDK_WIN32_DRAGOP_RESIZE)
switch (context->edge)
{
case GDK_SURFACE_EDGE_NORTH_WEST:
case GDK_SURFACE_EDGE_NORTH_EAST:
case GDK_SURFACE_EDGE_WEST:
case GDK_SURFACE_EDGE_EAST:
case GDK_SURFACE_EDGE_SOUTH_WEST:
case GDK_SURFACE_EDGE_SOUTH_EAST:
break;
case GDK_SURFACE_EDGE_SOUTH:
case GDK_SURFACE_EDGE_NORTH:
fullup_edge = TRUE;
break;
}
for (i = 0; i < context->maximize_regions->len && maximize == 0; i++)
{
reg = &g_array_index (context->maximize_regions, AeroSnapEdgeRegion, i);
maximize = point_in_aerosnap_region (x, y, reg);
}
for (i = 0; i < context->halfleft_regions->len && halfleft == 0; i++)
{
reg = &g_array_index (context->halfleft_regions, AeroSnapEdgeRegion, i);
halfleft = point_in_aerosnap_region (x, y, reg);
}
for (i = 0; i < context->halfright_regions->len && halfright == 0; i++)
{
reg = &g_array_index (context->halfright_regions, AeroSnapEdgeRegion, i);
halfright = point_in_aerosnap_region (x, y, reg);
}
for (i = 0; i < context->fullup_regions->len && fullup == 0; i++)
{
reg = &g_array_index (context->fullup_regions, AeroSnapEdgeRegion, i);
fullup = point_in_aerosnap_region (x, y, reg);
}
#if defined(MORE_AEROSNAP_DEBUGGING)
GDK_NOTE (MISC, g_print ("AeroSnap: point %d : %d - max: %d, left %d, right %d, up %d\n",
x, y, maximize, halfleft, halfright, fullup));
#endif
if (!context->revealed)
{
if (context->op == GDK_WIN32_DRAGOP_MOVE && maximize == 2)
{
context->revealed = TRUE;
context->current_snap = GDK_WIN32_AEROSNAP_STATE_MAXIMIZE;
start_indicator (window, context, x, y, context->current_snap);
}
else if (context->op == GDK_WIN32_DRAGOP_MOVE && halfleft == 2)
{
context->revealed = TRUE;
context->current_snap = GDK_WIN32_AEROSNAP_STATE_HALFLEFT;
start_indicator (window, context, x, y, context->current_snap);
}
else if (context->op == GDK_WIN32_DRAGOP_MOVE && halfright == 2)
{
context->revealed = TRUE;
context->current_snap = GDK_WIN32_AEROSNAP_STATE_HALFRIGHT;
start_indicator (window, context, x, y, context->current_snap);
}
else if (context->op == GDK_WIN32_DRAGOP_RESIZE && fullup == 2 && fullup_edge)
{
context->revealed = TRUE;
context->current_snap = GDK_WIN32_AEROSNAP_STATE_FULLUP;
start_indicator (window, context, x, y, context->current_snap);
}
return;
}
switch (context->current_snap)
{
case GDK_WIN32_AEROSNAP_STATE_UNDETERMINED:
if (context->op == GDK_WIN32_DRAGOP_RESIZE && fullup > 0)
{
context->current_snap = GDK_WIN32_AEROSNAP_STATE_FULLUP;
start_indicator (window, context, x, y, context->current_snap);
}
break;
case GDK_WIN32_AEROSNAP_STATE_MAXIMIZE:
if (context->op == GDK_WIN32_DRAGOP_MOVE && maximize > 0)
break;
if (context->op == GDK_WIN32_DRAGOP_MOVE && halfleft > 0)
{
context->current_snap = GDK_WIN32_AEROSNAP_STATE_HALFLEFT;
start_indicator (window, context, x, y, context->current_snap);
}
else if (context->op == GDK_WIN32_DRAGOP_MOVE && halfright > 0)
{
context->current_snap = GDK_WIN32_AEROSNAP_STATE_HALFRIGHT;
start_indicator (window, context, x, y, context->current_snap);
}
else
{
context->current_snap = GDK_WIN32_AEROSNAP_STATE_UNDETERMINED;
stop_indicator (window, context);
context->revealed = FALSE;
}
break;
case GDK_WIN32_AEROSNAP_STATE_HALFLEFT:
if (context->op == GDK_WIN32_DRAGOP_MOVE && halfleft > 0)
break;
if (context->op == GDK_WIN32_DRAGOP_MOVE && maximize > 0)
{
context->current_snap = GDK_WIN32_AEROSNAP_STATE_MAXIMIZE;
start_indicator (window, context, x, y, context->current_snap);
}
else if (context->op == GDK_WIN32_DRAGOP_MOVE && halfright > 0)
{
context->current_snap = GDK_WIN32_AEROSNAP_STATE_HALFRIGHT;
start_indicator (window, context, x, y, context->current_snap);
}
else
{
context->current_snap = GDK_WIN32_AEROSNAP_STATE_UNDETERMINED;
stop_indicator (window, context);
context->revealed = FALSE;
}
break;
case GDK_WIN32_AEROSNAP_STATE_HALFRIGHT:
if (context->op == GDK_WIN32_DRAGOP_MOVE && halfright > 0)
break;
if (context->op == GDK_WIN32_DRAGOP_MOVE && maximize > 0)
{
context->current_snap = GDK_WIN32_AEROSNAP_STATE_MAXIMIZE;
start_indicator (window, context, x, y, context->current_snap);
}
else if (context->op == GDK_WIN32_DRAGOP_MOVE && halfleft > 0)
{
context->current_snap = GDK_WIN32_AEROSNAP_STATE_HALFLEFT;
start_indicator (window, context, x, y, context->current_snap);
}
else
{
context->current_snap = GDK_WIN32_AEROSNAP_STATE_UNDETERMINED;
stop_indicator (window, context);
context->revealed = FALSE;
}
break;
case GDK_WIN32_AEROSNAP_STATE_FULLUP:
if (context->op == GDK_WIN32_DRAGOP_RESIZE && fullup > 0 && fullup_edge)
{
update_fullup_indicator (window, context);
break;
}
context->current_snap = GDK_WIN32_AEROSNAP_STATE_UNDETERMINED;
stop_indicator (window, context);
break;
}
}
static const char *
get_cursor_name_from_op (GdkW32WindowDragOp op,
GdkSurfaceEdge edge)
{
switch (op)
{
case GDK_WIN32_DRAGOP_MOVE:
return "move";
case GDK_WIN32_DRAGOP_RESIZE:
switch (edge)
{
case GDK_SURFACE_EDGE_NORTH_WEST:
return "nw-resize";
case GDK_SURFACE_EDGE_NORTH:
return "n-resize";
case GDK_SURFACE_EDGE_NORTH_EAST:
return "ne-resize";
case GDK_SURFACE_EDGE_WEST:
return "w-resize";
case GDK_SURFACE_EDGE_EAST:
return "e-resize";
case GDK_SURFACE_EDGE_SOUTH_WEST:
return "sw-resize";
case GDK_SURFACE_EDGE_SOUTH:
return "s-resize";
case GDK_SURFACE_EDGE_SOUTH_EAST:
return "se-resize";
}
/* default: warn about unhandled enum values,
* fallthrough to GDK_WIN32_DRAGOP_NONE case
*/
case GDK_WIN32_DRAGOP_COUNT:
g_assert_not_reached ();
case GDK_WIN32_DRAGOP_NONE:
return "default";
/* default: warn about unhandled enum values */
}
g_assert_not_reached ();
return NULL;
}
static void
setup_drag_move_resize_context (GdkSurface *window,
GdkW32DragMoveResizeContext *context,
GdkW32WindowDragOp op,
GdkSurfaceEdge edge,
GdkDevice *device,
int button,
double x,
double y,
guint32 timestamp)
{
RECT rect;
const char *cursor_name;
GdkSurface *pointer_window;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
gboolean maximized = gdk_toplevel_get_state (GDK_TOPLEVEL (window)) & GDK_TOPLEVEL_STATE_MAXIMIZED;
int root_x, root_y;
gdk_win32_surface_get_root_coords (window, x, y, &root_x, &root_y);
/* Before we drag, we need to undo any maximization or snapping.
* AeroSnap behaviour:
* If snapped halfleft/halfright:
* horizontal resize:
* resize
* don't unsnap
* keep stashed unsnapped size intact
* vertical resize:
* resize
* unsnap to new size (merge cached unsnapped state with current
* snapped state in such a way that the gripped edge
* does not move)
* diagonal resize:
* difficult to test (first move is usually either purely
* horizontal or purely vertical, in which
* case the above behaviour applies)
* If snapped up:
* horizontal resize:
* resize
* don't unsnap
* apply new width and x position to unsnapped cache,
* so that unsnapped window only regains its height
* and y position, but inherits x and width from
* the fullup snapped state
* vertical resize:
* unsnap to new size (merge cached unsnapped state with current
* snapped state in such a way that the gripped edge
* does not move)
*
* This implementation behaviour:
* If snapped halfleft/halfright/fullup:
* any resize:
* unsnap to current size, discard cached pre-snap state
*
* TODO: make this implementation behave as AeroSnap on resizes?
* There's also the case where
* a halfleft/halfright window isn't unsnapped when it's
* being moved horizontally, but it's more difficult to implement.
*/
if (op == GDK_WIN32_DRAGOP_RESIZE &&
(impl->snap_state == GDK_WIN32_AEROSNAP_STATE_HALFRIGHT ||
impl->snap_state == GDK_WIN32_AEROSNAP_STATE_HALFLEFT ||
impl->snap_state == GDK_WIN32_AEROSNAP_STATE_FULLUP))
{
discard_snapinfo (window);
}
else if (maximized ||
(impl->snap_state == GDK_WIN32_AEROSNAP_STATE_HALFRIGHT ||
impl->snap_state == GDK_WIN32_AEROSNAP_STATE_HALFLEFT ||
impl->snap_state == GDK_WIN32_AEROSNAP_STATE_FULLUP))
{
GdkMonitor *monitor;
int wx, wy, wwidth, wheight;
int swx, swy, swwidth, swheight;
gboolean pointer_outside_of_window;
int offsetx, offsety;
gboolean left_half;
GdkDisplay *display;
display = gdk_surface_get_display (window);
monitor = gdk_display_get_monitor_at_surface (display, window);
gdk_surface_get_geometry (window, &wx, &wy, &wwidth, &wheight);
swx = wx;
swy = wy;
swwidth = wwidth;
swheight = wheight;
/* Subtract window shadow. We don't want pointer to go outside of
* the visible window during drag-move. For drag-resize it's OK.
* Don't take shadow into account if the window is maximized -
* maximized windows don't have shadows.
*/
if (op == GDK_WIN32_DRAGOP_MOVE && !maximized)
{
swx += impl->shadow.left / impl->surface_scale;
swy += impl->shadow.top / impl->surface_scale;
swwidth -= impl->shadow_x;
swheight -= impl->shadow_y;
}
pointer_outside_of_window = root_x < swx || root_x > swx + swwidth ||
root_y < swy || root_y > swy + swheight;
/* Calculate the offset of the pointer relative to the window */
offsetx = root_x - swx;
offsety = root_y - swy;
/* Figure out in which half of the window the pointer is.
* The code currently only concerns itself with horizontal
* dimension (left/right halves).
* There's no upper/lower half, because usually window
* is dragged by its upper half anyway. If that changes, adjust
* accordingly.
*/
left_half = (offsetx < swwidth / 2);
/* Inverse the offset for it to be from the right edge */
if (!left_half)
offsetx = swwidth - offsetx;
GDK_NOTE (MISC, g_print ("Pointer at %d : %d, this is %d : %d relative to the window's %s\n",
root_x, root_y, offsetx, offsety,
left_half ? "left half" : "right half"));
/* Move window in such a way that on unmaximization/unsnapping the pointer
* is still pointing at the appropriate half of the window,
* with the same offset from the left or right edge. If the new
* window size is too small, and adding that offset puts the pointer
* into the other half or even beyond, move the pointer to the middle.
*/
if (!pointer_outside_of_window && maximized)
{
WINDOWPLACEMENT placement;
int unmax_width, unmax_height;
int shadow_unmax_width, shadow_unmax_height;
placement.length = sizeof (placement);
API_CALL (GetWindowPlacement, (GDK_SURFACE_HWND (window), &placement));
GDK_NOTE (MISC, g_print ("W32 WM unmaximized window placement is %ld x %ld @ %ld : %ld\n",
placement.rcNormalPosition.right - placement.rcNormalPosition.left,
placement.rcNormalPosition.bottom - placement.rcNormalPosition.top,
placement.rcNormalPosition.left + _gdk_offset_x * impl->surface_scale,
placement.rcNormalPosition.top + _gdk_offset_y * impl->surface_scale));
unmax_width = placement.rcNormalPosition.right - placement.rcNormalPosition.left;
unmax_height = placement.rcNormalPosition.bottom - placement.rcNormalPosition.top;
shadow_unmax_width = unmax_width - impl->shadow_x * impl->surface_scale;
shadow_unmax_height = unmax_height - impl->shadow_y * impl->surface_scale;
if (offsetx * impl->surface_scale < (shadow_unmax_width / 2) &&
offsety * impl->surface_scale < (shadow_unmax_height / 2))
{
placement.rcNormalPosition.top = (root_y - offsety + impl->shadow.top - _gdk_offset_y) * impl->surface_scale;
placement.rcNormalPosition.bottom = placement.rcNormalPosition.top + unmax_height;
if (left_half)
{
placement.rcNormalPosition.left = (root_x - offsetx + impl->shadow.left - _gdk_offset_x) * impl->surface_scale;
placement.rcNormalPosition.right = placement.rcNormalPosition.left + unmax_width;
}
else
{
placement.rcNormalPosition.right = (root_x + offsetx + impl->shadow.right - _gdk_offset_x) * impl->surface_scale;
placement.rcNormalPosition.left = placement.rcNormalPosition.right - unmax_width;
}
}
else
{
placement.rcNormalPosition.left = (root_x * impl->surface_scale) -
(unmax_width / 2) -
(_gdk_offset_x * impl->surface_scale);
if (offsety * impl->surface_scale < shadow_unmax_height / 2)
placement.rcNormalPosition.top = (root_y - offsety + impl->shadow.top - _gdk_offset_y) * impl->surface_scale;
else
placement.rcNormalPosition.top = (root_y * impl->surface_scale) -
(unmax_height / 2) -
(_gdk_offset_y * impl->surface_scale);
placement.rcNormalPosition.right = placement.rcNormalPosition.left + unmax_width;
placement.rcNormalPosition.bottom = placement.rcNormalPosition.top + unmax_height;
}
GDK_NOTE (MISC, g_print ("Unmaximized window will be at %ld : %ld\n",
placement.rcNormalPosition.left + _gdk_offset_x * impl->surface_scale,
placement.rcNormalPosition.top + _gdk_offset_y * impl->surface_scale));
API_CALL (SetWindowPlacement, (GDK_SURFACE_HWND (window), &placement));
}
else if (!pointer_outside_of_window && impl->snap_stash_int)
{
GdkRectangle new_pos;
GdkRectangle snew_pos;
new_pos.width = impl->snap_stash_int->width;
new_pos.height = impl->snap_stash_int->height;
snew_pos = new_pos;
if (op == GDK_WIN32_DRAGOP_MOVE)
{
snew_pos.width -= impl->shadow_x;
snew_pos.height -= impl->shadow_y;
}
if (offsetx < snew_pos.width / 2 && offsety < snew_pos.height / 2)
{
new_pos.y = root_y - offsety + impl->shadow.top / impl->surface_scale;
if (left_half)
new_pos.x = root_x - offsetx + impl->shadow.left / impl->surface_scale;
else
new_pos.x = root_x + offsetx + impl->shadow.left / impl->surface_scale - new_pos.width;
}
else
{
new_pos.x = root_x - new_pos.width / 2;
new_pos.y = root_y - new_pos.height / 2;
}
GDK_NOTE (MISC, g_print ("Unsnapped window to %d : %d\n",
new_pos.x, new_pos.y));
discard_snapinfo (window);
gdk_win32_surface_move_resize (window, new_pos.x, new_pos.y,
new_pos.width, new_pos.height);
}
if (maximized)
gdk_win32_surface_unmaximize (window);
else
unsnap (window, monitor);
if (pointer_outside_of_window)
{
/* Pointer outside of the window, move pointer into window */
GDK_NOTE (MISC, g_print ("Pointer at %d : %d is outside of %d x %d @ %d : %d, move it to %d : %d\n",
root_x, root_y, wwidth, wheight, wx, wy, wx + wwidth / 2, wy + wheight / 2));
root_x = wx + wwidth / 2;
/* This is Gnome behaviour. Windows WM would put the pointer
* in the middle of the titlebar, but GDK doesn't know where
* the titlebar is, if any.
*/
root_y = wy + wheight / 2;
SetCursorPos (root_x - _gdk_offset_x, root_y - _gdk_offset_y);
}
}
_gdk_win32_get_window_rect (window, &rect);
cursor_name = get_cursor_name_from_op (op, edge);
context->cursor = gdk_cursor_new_from_name (cursor_name, NULL);
pointer_window = window;
/* Note: This triggers a WM_CAPTURECHANGED, which will trigger
* gdk_win32_surface_end_move_resize_drag(), which will end
* our op before it even begins, but only if context->op is not NONE.
* This is why we first do the grab, *then* set the op.
*/
gdk_device_grab (device, pointer_window,
FALSE,
GDK_ALL_EVENTS_MASK,
context->cursor,
timestamp);
context->window = g_object_ref (window);
context->op = op;
context->edge = edge;
context->device = device;
context->button = button;
context->start_root_x = root_x;
context->start_root_y = root_y;
context->timestamp = timestamp;
context->start_rect = rect;
context->shape_indicator = NULL;
context->revealed = FALSE;
context->halfleft_regions = g_array_new (FALSE, FALSE, sizeof (AeroSnapEdgeRegion));
context->halfright_regions = g_array_new (FALSE, FALSE, sizeof (AeroSnapEdgeRegion));
context->maximize_regions = g_array_new (FALSE, FALSE, sizeof (AeroSnapEdgeRegion));
context->fullup_regions = g_array_new (FALSE, FALSE, sizeof (AeroSnapEdgeRegion));
calculate_aerosnap_regions (context);
GDK_NOTE (EVENTS,
g_print ("begin drag moveresize: window %p, toplevel %p, "
"op %u, edge %d, device %p, "
"button %d, coord %d:%d, time %u\n",
pointer_window, window,
context->op, context->edge, context->device,
context->button, context->start_root_x,
context->start_root_y, context->timestamp));
}
void
gdk_win32_surface_end_move_resize_drag (GdkSurface *window)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
GdkW32DragMoveResizeContext *context = &impl->drag_move_resize_context;
if (context->op == GDK_WIN32_DRAGOP_RESIZE)
_gdk_win32_surface_invalidate_egl_framebuffer (window);
context->op = GDK_WIN32_DRAGOP_NONE;
gdk_device_ungrab (context->device, GDK_CURRENT_TIME);
g_clear_object (&context->cursor);
context->revealed = FALSE;
if (context->timer)
{
g_source_remove (context->timer);
context->timer = 0;
}
g_clear_object (&context->window);
if (context->indicator_surface)
{
cairo_surface_destroy (context->indicator_surface);
context->indicator_surface = NULL;
}
if (context->shape_indicator)
{
stop_indicator (window, context);
DestroyWindow (context->shape_indicator);
context->shape_indicator = NULL;
}
g_clear_pointer (&context->halfleft_regions, g_array_unref);
g_clear_pointer (&context->halfright_regions, g_array_unref);
g_clear_pointer (&context->maximize_regions, g_array_unref);
g_clear_pointer (&context->fullup_regions, g_array_unref);
GDK_NOTE (EVENTS,
g_print ("end drag moveresize: window %p, toplevel %p,"
"op %u, edge %d, device %p, "
"button %d, coord %d:%d, time %u\n",
window, window,
context->op, context->edge, context->device,
context->button, context->start_root_x,
context->start_root_y, context->timestamp));
if (context->current_snap != GDK_WIN32_AEROSNAP_STATE_UNDETERMINED)
apply_snap (window, context->current_snap);
context->current_snap = GDK_WIN32_AEROSNAP_STATE_UNDETERMINED;
}
static void
gdk_win32_get_window_size_and_position_from_client_rect (GdkSurface *window,
RECT *window_rect,
SIZE *window_size,
POINT *window_position)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
/* Turn client area into window area */
_gdk_win32_adjust_client_rect (window, window_rect);
/* Convert GDK screen coordinates to W32 desktop coordinates */
window_rect->left -= _gdk_offset_x * impl->surface_scale;
window_rect->right -= _gdk_offset_x * impl->surface_scale;
window_rect->top -= _gdk_offset_y * impl->surface_scale;
window_rect->bottom -= _gdk_offset_y * impl->surface_scale;
window_position->x = window_rect->left;
window_position->y = window_rect->top;
window_size->cx = window_rect->right - window_rect->left;
window_size->cy = window_rect->bottom - window_rect->top;
}
void
_gdk_win32_update_layered_window_from_cache (GdkSurface *surface,
RECT *client_rect,
gboolean do_move,
gboolean do_resize,
gboolean do_paint)
{
POINT window_position;
SIZE window_size;
BLENDFUNCTION blender;
HDC hdc;
SIZE *window_size_ptr;
POINT source_point = { 0, 0 };
POINT *source_point_ptr;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
gdk_win32_get_window_size_and_position_from_client_rect (surface,
client_rect,
&window_size,
&window_position);
blender.BlendOp = AC_SRC_OVER;
blender.BlendFlags = 0;
blender.AlphaFormat = AC_SRC_ALPHA;
blender.SourceConstantAlpha = impl->layered_opacity * 255;
/* Strictly speaking, we don't need to supply hdc, source_point and
* window_size to just move the window. However, without these arguments
* the window moves but does not update its contents on Windows 7 when
* desktop composition is off. This forces us to provide hdc and
* source_point. window_size is here to avoid the function
* inexplicably failing with error 317.
*/
hdc = cairo_win32_surface_get_dc (impl->cache_surface);
window_size_ptr = &window_size;
source_point_ptr = &source_point;
if (gdk_display_is_composited (gdk_surface_get_display (surface)))
{
if (!do_paint)
hdc = NULL;
if (!do_resize)
window_size_ptr = NULL;
if (!do_move)
source_point_ptr = NULL;
}
/* Don't use UpdateLayeredWindow on minimized windows */
if (IsIconic (GDK_SURFACE_HWND (surface)))
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (surface),
SWP_NOZORDER_SPECIFIED,
window_position.x, window_position.y,
window_size.cx, window_size.cy,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW));
else
API_CALL (UpdateLayeredWindow, (GDK_SURFACE_HWND (surface), NULL,
&window_position, window_size_ptr,
hdc, source_point_ptr,
0, &blender, ULW_ALPHA));
}
void
gdk_win32_surface_do_move_resize_drag (GdkSurface *window,
int x,
int y)
{
RECT rect;
RECT new_rect;
int diffy, diffx;
MINMAXINFO mmi;
GdkWin32Surface *impl;
GdkW32DragMoveResizeContext *context;
int width;
int height;
impl = GDK_WIN32_SURFACE (window);
context = &impl->drag_move_resize_context;
if (!_gdk_win32_get_window_rect (window, &rect))
return;
new_rect = context->start_rect;
diffx = (x - context->start_root_x) * impl->surface_scale;
diffy = (y - context->start_root_y) * impl->surface_scale;
switch (context->op)
{
case GDK_WIN32_DRAGOP_RESIZE:
switch (context->edge)
{
case GDK_SURFACE_EDGE_NORTH_WEST:
new_rect.left += diffx;
new_rect.top += diffy;
break;
case GDK_SURFACE_EDGE_NORTH:
new_rect.top += diffy;
break;
case GDK_SURFACE_EDGE_NORTH_EAST:
new_rect.right += diffx;
new_rect.top += diffy;
break;
case GDK_SURFACE_EDGE_WEST:
new_rect.left += diffx;
break;
case GDK_SURFACE_EDGE_EAST:
new_rect.right += diffx;
break;
case GDK_SURFACE_EDGE_SOUTH_WEST:
new_rect.left += diffx;
new_rect.bottom += diffy;
break;
case GDK_SURFACE_EDGE_SOUTH:
new_rect.bottom += diffy;
break;
case GDK_SURFACE_EDGE_SOUTH_EAST:
default:
new_rect.right += diffx;
new_rect.bottom += diffy;
break;
}
/* When handling WM_GETMINMAXINFO, mmi is already populated
* by W32 WM and we apply our stuff on top of that.
* Here it isn't, so we should at least clear it.
*/
memset (&mmi, 0, sizeof (mmi));
if (!_gdk_win32_surface_fill_min_max_info (window, &mmi))
break;
width = new_rect.right - new_rect.left;
height = new_rect.bottom - new_rect.top;
if (width > mmi.ptMaxTrackSize.x)
{
switch (context->edge)
{
case GDK_SURFACE_EDGE_NORTH_WEST:
case GDK_SURFACE_EDGE_WEST:
case GDK_SURFACE_EDGE_SOUTH_WEST:
new_rect.left = new_rect.right - mmi.ptMaxTrackSize.x;
break;
case GDK_SURFACE_EDGE_NORTH_EAST:
case GDK_SURFACE_EDGE_EAST:
case GDK_SURFACE_EDGE_SOUTH_EAST:
default:
new_rect.right = new_rect.left + mmi.ptMaxTrackSize.x;
break;
}
}
else if (width < mmi.ptMinTrackSize.x)
{
switch (context->edge)
{
case GDK_SURFACE_EDGE_NORTH_WEST:
case GDK_SURFACE_EDGE_WEST:
case GDK_SURFACE_EDGE_SOUTH_WEST:
new_rect.left = new_rect.right - mmi.ptMinTrackSize.x;
break;
case GDK_SURFACE_EDGE_NORTH_EAST:
case GDK_SURFACE_EDGE_EAST:
case GDK_SURFACE_EDGE_SOUTH_EAST:
default:
new_rect.right = new_rect.left + mmi.ptMinTrackSize.x;
break;
}
}
if (height > mmi.ptMaxTrackSize.y)
{
switch (context->edge)
{
case GDK_SURFACE_EDGE_NORTH_WEST:
case GDK_SURFACE_EDGE_NORTH:
case GDK_SURFACE_EDGE_NORTH_EAST:
new_rect.top = new_rect.bottom - mmi.ptMaxTrackSize.y;
case GDK_SURFACE_EDGE_SOUTH_WEST:
case GDK_SURFACE_EDGE_SOUTH:
case GDK_SURFACE_EDGE_SOUTH_EAST:
default:
new_rect.bottom = new_rect.top + mmi.ptMaxTrackSize.y;
break;
}
}
else if (height < mmi.ptMinTrackSize.y)
{
switch (context->edge)
{
case GDK_SURFACE_EDGE_NORTH_WEST:
case GDK_SURFACE_EDGE_NORTH:
case GDK_SURFACE_EDGE_NORTH_EAST:
new_rect.top = new_rect.bottom - mmi.ptMinTrackSize.y;
case GDK_SURFACE_EDGE_SOUTH_WEST:
case GDK_SURFACE_EDGE_SOUTH:
case GDK_SURFACE_EDGE_SOUTH_EAST:
default:
new_rect.bottom = new_rect.top + mmi.ptMinTrackSize.y;
break;
}
}
break;
case GDK_WIN32_DRAGOP_MOVE:
new_rect.left += diffx;
new_rect.top += diffy;
new_rect.right += diffx;
new_rect.bottom += diffy;
break;
default:
break;
}
if (context->op == GDK_WIN32_DRAGOP_RESIZE &&
(rect.left != new_rect.left ||
rect.right != new_rect.right ||
rect.top != new_rect.top ||
rect.bottom != new_rect.bottom))
{
if (GDK_IS_TOPLEVEL (window))
{
int scale = impl->surface_scale;
impl->unscaled_width = new_rect.right - new_rect.left;
impl->unscaled_height = new_rect.bottom - new_rect.top;
impl->next_layout.configured_width = (impl->unscaled_width + scale - 1) / scale;
impl->next_layout.configured_height = (impl->unscaled_height + scale - 1) / scale;
impl->resized = TRUE;
}
context->native_move_resize_pending = TRUE;
}
else if (context->op == GDK_WIN32_DRAGOP_MOVE &&
(rect.left != new_rect.left ||
rect.top != new_rect.top))
{
context->native_move_resize_pending = FALSE;
gdk_surface_request_layout (window);
if (impl->layered)
{
_gdk_win32_update_layered_window_from_cache (window, &new_rect, TRUE, FALSE, FALSE);
}
else
{
SIZE window_size;
POINT window_position;
gdk_win32_get_window_size_and_position_from_client_rect (window,
&new_rect,
&window_size,
&window_position);
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window),
SWP_NOZORDER_SPECIFIED,
window_position.x, window_position.y,
0, 0,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE));
}
}
if (context->op == GDK_WIN32_DRAGOP_RESIZE ||
context->op == GDK_WIN32_DRAGOP_MOVE)
handle_aerosnap_move_resize (window, context, x, y);
gdk_surface_request_layout (window);
}
static void
gdk_win32_toplevel_begin_resize (GdkToplevel *toplevel,
GdkSurfaceEdge edge,
GdkDevice *device,
int button,
double x,
double y,
guint32 timestamp)
{
GdkSurface *window = GDK_SURFACE (toplevel);
GdkWin32Surface *impl;
if (GDK_SURFACE_DESTROYED (window) ||
IsIconic (GDK_SURFACE_HWND (window)))
return;
/* Tell Windows to start interactively resizing the window by pretending that
* the left pointer button was clicked in the suitable edge or corner. This
* will only work if the button is down when this function is called, and
* will only work with button 1 (left), since Windows only allows window
* dragging using the left mouse button.
*/
if (button != 1)
return;
impl = GDK_WIN32_SURFACE (window);
if (impl->drag_move_resize_context.op != GDK_WIN32_DRAGOP_NONE)
gdk_win32_surface_end_move_resize_drag (window);
setup_drag_move_resize_context (window, &impl->drag_move_resize_context,
GDK_WIN32_DRAGOP_RESIZE, edge, device,
button, x, y, timestamp);
}
static void
gdk_win32_toplevel_begin_move (GdkToplevel *toplevel,
GdkDevice *device,
int button,
double x,
double y,
guint32 timestamp)
{
GdkSurface *window = GDK_SURFACE (toplevel);
GdkWin32Surface *impl;
if (GDK_SURFACE_DESTROYED (window) ||
IsIconic (GDK_SURFACE_HWND (window)))
return;
/* Tell Windows to start interactively moving the window by pretending that
* the left pointer button was clicked in the titlebar. This will only work
* if the button is down when this function is called, and will only work
* with button 1 (left), since Windows only allows window dragging using the
* left mouse button.
*/
if (button != 1)
return;
impl = GDK_WIN32_SURFACE (window);
if (impl->drag_move_resize_context.op != GDK_WIN32_DRAGOP_NONE)
gdk_win32_surface_end_move_resize_drag (window);
setup_drag_move_resize_context (window, &impl->drag_move_resize_context,
GDK_WIN32_DRAGOP_MOVE, GDK_SURFACE_EDGE_NORTH_WEST,
device, button, x, y, timestamp);
}
/*
* Setting window states
*/
static void
gdk_win32_surface_minimize (GdkSurface *window)
{
HWND old_active_window;
g_return_if_fail (GDK_IS_SURFACE (window));
if (GDK_SURFACE_DESTROYED (window))
return;
GDK_NOTE (MISC, g_print ("gdk_surface_minimize: %p: %s\n",
GDK_SURFACE_HWND (window),
_gdk_win32_surface_state_to_string (window->state)));
if (GDK_SURFACE_IS_MAPPED (window))
{
old_active_window = GetActiveWindow ();
GtkShowWindow (window, SW_MINIMIZE);
if (old_active_window != GDK_SURFACE_HWND (window))
SetActiveWindow (old_active_window);
}
else
{
gdk_synthesize_surface_state (window,
0,
GDK_TOPLEVEL_STATE_MINIMIZED);
}
}
static void
gdk_win32_surface_maximize (GdkSurface *window)
{
GdkWin32Surface *impl;
g_return_if_fail (GDK_IS_SURFACE (window));
if (GDK_SURFACE_DESTROYED (window))
return;
GDK_NOTE (MISC, g_print ("gdk_surface_maximize: %p: %s\n",
GDK_SURFACE_HWND (window),
_gdk_win32_surface_state_to_string (window->state)));
impl = GDK_WIN32_SURFACE (window);
impl->resized = FALSE;
if (GDK_SURFACE_IS_MAPPED (window))
GtkShowWindow (window, SW_MAXIMIZE);
else
gdk_synthesize_surface_state (window,
0,
GDK_TOPLEVEL_STATE_MAXIMIZED);
}
static void
gdk_win32_surface_unmaximize (GdkSurface *window)
{
g_return_if_fail (GDK_IS_SURFACE (window));
if (GDK_SURFACE_DESTROYED (window))
return;
GDK_NOTE (MISC, g_print ("gdk_surface_unmaximize: %p: %s\n",
GDK_SURFACE_HWND (window),
_gdk_win32_surface_state_to_string (window->state)));
_gdk_win32_surface_invalidate_egl_framebuffer (window);
if (GDK_SURFACE_IS_MAPPED (window))
GtkShowWindow (window, SW_RESTORE);
else
gdk_synthesize_surface_state (window,
GDK_TOPLEVEL_STATE_MAXIMIZED,
0);
}
static void
gdk_win32_surface_fullscreen (GdkSurface *window)
{
int x, y, width, height;
FullscreenInfo *fi;
HMONITOR monitor;
MONITORINFO mi;
g_return_if_fail (GDK_IS_SURFACE (window));
fi = g_new (FullscreenInfo, 1);
if (!GetWindowRect (GDK_SURFACE_HWND (window), &(fi->r)))
g_free (fi);
else
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
monitor = MonitorFromWindow (GDK_SURFACE_HWND (window), MONITOR_DEFAULTTONEAREST);
mi.cbSize = sizeof (mi);
if (monitor && GetMonitorInfo (monitor, &mi))
{
x = mi.rcMonitor.left;
y = mi.rcMonitor.top;
width = mi.rcMonitor.right - x;
height = mi.rcMonitor.bottom - y;
}
else
{
x = y = 0;
width = GetSystemMetrics (SM_CXSCREEN);
height = GetSystemMetrics (SM_CYSCREEN);
}
/* remember for restoring */
fi->hint_flags = impl->hint_flags;
impl->hint_flags &= ~GDK_HINT_MAX_SIZE;
g_object_set_data (G_OBJECT (window), "fullscreen-info", fi);
fi->style = GetWindowLong (GDK_SURFACE_HWND (window), GWL_STYLE);
/* Send state change before configure event */
gdk_synthesize_surface_state (window, 0, GDK_TOPLEVEL_STATE_FULLSCREEN);
SetWindowLong (GDK_SURFACE_HWND (window), GWL_STYLE,
(fi->style & ~WS_OVERLAPPEDWINDOW) | WS_POPUP);
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window), HWND_TOP,
x, y, width, height,
SWP_NOCOPYBITS | SWP_SHOWWINDOW));
}
}
static void
gdk_win32_surface_unfullscreen (GdkSurface *window)
{
FullscreenInfo *fi;
g_return_if_fail (GDK_IS_SURFACE (window));
fi = g_object_get_data (G_OBJECT (window), "fullscreen-info");
if (fi)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
gdk_synthesize_surface_state (window, GDK_TOPLEVEL_STATE_FULLSCREEN, 0);
impl->hint_flags = fi->hint_flags;
SetWindowLong (GDK_SURFACE_HWND (window), GWL_STYLE, fi->style);
_gdk_win32_surface_invalidate_egl_framebuffer (window);
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window), HWND_NOTOPMOST,
fi->r.left, fi->r.top,
fi->r.right - fi->r.left, fi->r.bottom - fi->r.top,
SWP_NOCOPYBITS | SWP_SHOWWINDOW));
g_object_set_data (G_OBJECT (window), "fullscreen-info", NULL);
g_free (fi);
_gdk_win32_surface_update_style_bits (window);
}
}
static void
gdk_win32_surface_focus (GdkSurface *window,
guint32 timestamp)
{
g_return_if_fail (GDK_IS_SURFACE (window));
if (GDK_SURFACE_DESTROYED (window))
return;
GDK_NOTE (MISC, g_print ("gdk_surface_focus: %p: %s\n",
GDK_SURFACE_HWND (window),
_gdk_win32_surface_state_to_string (window->state)));
if (window->state & GDK_TOPLEVEL_STATE_MAXIMIZED)
GtkShowWindow (window, SW_SHOWMAXIMIZED);
else if (window->state & GDK_TOPLEVEL_STATE_MINIMIZED)
GtkShowWindow (window, SW_RESTORE);
else if (!IsWindowVisible (GDK_SURFACE_HWND (window)))
GtkShowWindow (window, SW_SHOWNORMAL);
else
GtkShowWindow (window, SW_SHOW);
SetFocus (GDK_SURFACE_HWND (window));
}
GdkSurface *
gdk_win32_surface_lookup_for_display (GdkDisplay *display,
HWND anid)
{
g_return_val_if_fail (display == gdk_display_get_default (), NULL);
return (GdkSurface*) gdk_win32_handle_table_lookup (anid);
}
void
gdk_win32_surface_set_opacity (GdkSurface *window,
double opacity)
{
LONG exstyle;
typedef BOOL (WINAPI *PFN_SetLayeredWindowAttributes) (HWND, COLORREF, BYTE, DWORD);
PFN_SetLayeredWindowAttributes setLayeredWindowAttributes = NULL;
GdkWin32Surface *impl;
g_return_if_fail (GDK_IS_SURFACE (window));
if (GDK_SURFACE_DESTROYED (window))
return;
if (opacity < 0)
opacity = 0;
else if (opacity > 1)
opacity = 1;
impl = GDK_WIN32_SURFACE (window);
if (impl->layered)
{
if (impl->layered_opacity != opacity)
{
RECT window_rect;
impl->layered_opacity = opacity;
_gdk_win32_get_window_client_area_rect (window, impl->surface_scale, &window_rect);
_gdk_win32_update_layered_window_from_cache (window, &window_rect, TRUE, TRUE, TRUE);
}
return;
}
exstyle = GetWindowLong (GDK_SURFACE_HWND (window), GWL_EXSTYLE);
if (!(exstyle & WS_EX_LAYERED))
SetWindowLong (GDK_SURFACE_HWND (window),
GWL_EXSTYLE,
exstyle | WS_EX_LAYERED);
setLayeredWindowAttributes =
(PFN_SetLayeredWindowAttributes)GetProcAddress (GetModuleHandle ("user32.dll"), "SetLayeredWindowAttributes");
if (setLayeredWindowAttributes)
{
API_CALL (setLayeredWindowAttributes, (GDK_SURFACE_HWND (window),
0,
opacity * 0xff,
LWA_ALPHA));
}
}
gboolean
gdk_win32_surface_is_win32 (GdkSurface *window)
{
return GDK_IS_WIN32_SURFACE (window);
}
static gboolean
gdk_win32_surface_show_window_menu (GdkSurface *window,
GdkEvent *event)
{
double event_x, event_y;
int x, y;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
switch ((int) event->event_type)
{
case GDK_BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
case GDK_TOUCH_BEGIN:
case GDK_TOUCH_END:
break;
default:
return FALSE;
}
gdk_event_get_position (event, &event_x, &event_y);
x = round (event_x);
y = round (event_y);
SendMessage (GDK_SURFACE_HWND (window),
WM_SYSMENU,
0,
MAKELPARAM (x * impl->surface_scale, y * impl->surface_scale));
return TRUE;
}
HWND
gdk_win32_surface_get_impl_hwnd (GdkSurface *window)
{
if (GDK_IS_WIN32_SURFACE (window))
return GDK_SURFACE_HWND (window);
return NULL;
}
BOOL WINAPI
GtkShowWindow (GdkSurface *window,
int cmd_show)
{
cairo_t *cr;
cairo_surface_t *surface;
RECT window_rect;
HDC hdc;
POINT window_position;
SIZE window_size;
POINT source_point;
BLENDFUNCTION blender;
HWND hwnd = GDK_SURFACE_HWND (window);
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
switch (cmd_show)
{
case SW_FORCEMINIMIZE:
case SW_HIDE:
case SW_MINIMIZE:
break;
case SW_MAXIMIZE:
case SW_RESTORE:
case SW_SHOW:
case SW_SHOWDEFAULT:
case SW_SHOWMINIMIZED:
case SW_SHOWMINNOACTIVE:
case SW_SHOWNA:
case SW_SHOWNOACTIVATE:
case SW_SHOWNORMAL:
if (IsWindowVisible (hwnd))
break;
if ((WS_EX_LAYERED & GetWindowLongPtr (hwnd, GWL_EXSTYLE)) != WS_EX_LAYERED)
break;
/* Window was hidden, will be shown. Erase it, GDK will repaint soon,
* but not soon enough, so it's possible to see old content before
* the next redraw, unless we erase the window first.
*/
GetWindowRect (hwnd, &window_rect);
source_point.x = source_point.y = 0;
window_position.x = window_rect.left;
window_position.y = window_rect.top;
window_size.cx = window_rect.right - window_rect.left;
window_size.cy = window_rect.bottom - window_rect.top;
blender.BlendOp = AC_SRC_OVER;
blender.BlendFlags = 0;
blender.AlphaFormat = AC_SRC_ALPHA;
blender.SourceConstantAlpha = 255;
/* Create a surface of appropriate size and clear it */
surface = cairo_win32_surface_create_with_dib (CAIRO_FORMAT_ARGB32,
window_size.cx,
window_size.cy);
cairo_surface_set_device_scale (surface, impl->surface_scale, impl->surface_scale);
cr = cairo_create (surface);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.0);
cairo_paint (cr);
cairo_destroy (cr);
cairo_surface_flush (surface);
hdc = cairo_win32_surface_get_dc (surface);
/* No API_CALL() wrapper, don't check for errors */
UpdateLayeredWindow (hwnd, NULL,
&window_position, &window_size,
hdc, &source_point,
0, &blender, ULW_ALPHA);
cairo_surface_destroy (surface);
break;
}
/* Ensure that maximized window size is corrected later on */
if (cmd_show == SW_MAXIMIZE)
impl->maximizing = TRUE;
return ShowWindow (hwnd, cmd_show);
}
static void
gdk_win32_surface_set_shadow_width (GdkSurface *window,
int left,
int right,
int top,
int bottom)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
if (GDK_SURFACE_DESTROYED (window))
return;
GDK_NOTE (MISC, g_print ("gdk_win32_surface_set_shadow_width: window %p, "
"left %d, top %d, right %d, bottom %d\n",
window, left, top, right, bottom));
impl->zero_shadow = left == 0 && right == 0 && top == 0 && bottom == 0;
if (impl->zero_shadow)
return;
impl->shadow.left = left;
impl->shadow.right = right * impl->surface_scale;
impl->shadow.top = top;
impl->shadow.bottom = bottom * impl->surface_scale;
impl->shadow_x = left + right;
impl->shadow_y = top + bottom;
}
int
_gdk_win32_surface_get_scale_factor (GdkSurface *window)
{
GdkDisplay *display;
GdkWin32Surface *impl;
GdkWin32Display *win32_display;
if (GDK_SURFACE_DESTROYED (window))
return 1;
g_return_val_if_fail (window != NULL, 1);
display = gdk_surface_get_display (window);
impl = GDK_WIN32_SURFACE (window);
win32_display = GDK_WIN32_DISPLAY (display);
if (win32_display->dpi_aware_type != PROCESS_DPI_UNAWARE)
{
if (win32_display->has_fixed_scale)
impl->surface_scale = win32_display->surface_scale;
else
impl->surface_scale = _gdk_win32_display_get_monitor_scale_factor (win32_display,
NULL,
GDK_SURFACE_HWND (window),
NULL);
return impl->surface_scale;
}
else
{
if (win32_display->has_fixed_scale)
{
static gsize hidpi_msg_displayed = 0;
if (g_once_init_enter (&hidpi_msg_displayed))
{
g_message ("Note: GDK_SCALE is ignored as HiDPI awareness is disabled.");
g_once_init_leave (&hidpi_msg_displayed, 1);
}
}
/* Application is not DPI aware, don't bother */
return 1;
}
}
void
_gdk_win32_surface_get_unscaled_size (GdkSurface *window,
int *unscaled_width,
int *unscaled_height)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
if (unscaled_width)
*unscaled_width = impl->unscaled_width;
if (unscaled_height)
*unscaled_height = impl->unscaled_height;
}
static void
gdk_win32_surface_set_input_region (GdkSurface *window,
cairo_region_t *input_region)
{
/* Partial input shape support is implemented by handling the
* NC_NCHITTEST message
*/
}
static void
compute_toplevel_size (GdkSurface *surface,
gboolean update_geometry,
int *width,
int *height)
{
GdkDisplay *display = gdk_surface_get_display (surface);
GdkMonitor *monitor;
GdkToplevelSize size;
int bounds_width, bounds_height;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
monitor = gdk_display_get_monitor_at_surface (display, surface);
if (monitor)
{
GdkRectangle workarea;
gdk_win32_monitor_get_workarea (monitor, &workarea);
bounds_width = workarea.width;
bounds_height = workarea.height;
}
else
{
bounds_width = G_MAXINT;
bounds_height = G_MAXINT;
}
gdk_toplevel_size_init (&size, bounds_width, bounds_height);
gdk_toplevel_notify_compute_size (GDK_TOPLEVEL (surface), &size);
g_warn_if_fail (size.width > 0);
g_warn_if_fail (size.height > 0);
*width = size.width;
*height = size.height;
if (size.shadow.is_valid)
{
gdk_win32_surface_set_shadow_width (surface,
size.shadow.left,
size.shadow.right,
size.shadow.top,
size.shadow.bottom);
}
if (update_geometry)
{
GdkGeometry geometry;
GdkSurfaceHints mask;
GdkToplevelLayout *layout = impl->toplevel_layout;
if (gdk_toplevel_layout_get_resizable (layout))
{
geometry.min_width = size.min_width;
geometry.min_height = size.min_height;
mask = GDK_HINT_MIN_SIZE;
}
else
{
geometry.max_width = geometry.min_width = *width;
geometry.max_height = geometry.min_height = *height;
mask = GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE;
}
gdk_win32_surface_set_geometry_hints (surface, &geometry, mask);
gdk_surface_constrain_size (&geometry, mask, *width, *height, width, height);
}
}
static void
_gdk_win32_surface_request_layout (GdkSurface *surface)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
int scale = impl->surface_scale;
RECT rect;
if (GDK_IS_TOPLEVEL (surface) && impl->resized)
{
surface->width = impl->next_layout.configured_width;
surface->height = impl->next_layout.configured_height;
}
else
{
_gdk_win32_get_window_rect (surface, &rect);
impl->unscaled_width = rect.right - rect.left;
impl->unscaled_height = rect.bottom - rect.top;
impl->next_layout.configured_width = (impl->unscaled_width + scale - 1) / scale;
impl->next_layout.configured_height = (impl->unscaled_height + scale - 1) / scale;
surface->x = rect.left / scale;
surface->y = rect.top / scale;
}
}
static gboolean
_gdk_win32_surface_compute_size (GdkSurface *surface)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
int width, height;
if (GDK_IS_TOPLEVEL (surface))
compute_toplevel_size (surface, TRUE, &width, &height);
if (!impl->resized)
{
surface->width = impl->next_layout.configured_width;
surface->height = impl->next_layout.configured_height;
_gdk_surface_update_size (surface);
}
return FALSE;
}
static void
gdk_win32_surface_class_init (GdkWin32SurfaceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkSurfaceClass *impl_class = GDK_SURFACE_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->dispose = gdk_surface_win32_dispose;
object_class->finalize = gdk_surface_win32_finalize;
impl_class->hide = gdk_win32_surface_hide;
impl_class->get_geometry = gdk_win32_surface_get_geometry;
impl_class->get_device_state = gdk_surface_win32_get_device_state;
impl_class->get_root_coords = gdk_win32_surface_get_root_coords;
impl_class->set_input_region = gdk_win32_surface_set_input_region;
impl_class->destroy = gdk_win32_surface_destroy;
//impl_class->beep = gdk_x11_surface_beep;
impl_class->destroy_notify = gdk_win32_surface_destroy_notify;
impl_class->drag_begin = _gdk_win32_surface_drag_begin;
impl_class->create_gl_context = _gdk_win32_surface_create_gl_context;
impl_class->get_scale_factor = _gdk_win32_surface_get_scale_factor;
impl_class->get_unscaled_size = _gdk_win32_surface_get_unscaled_size;
impl_class->request_layout = _gdk_win32_surface_request_layout;
impl_class->compute_size = _gdk_win32_surface_compute_size;
}
HGDIOBJ
gdk_win32_surface_get_handle (GdkSurface *window)
{
if (!GDK_IS_WIN32_SURFACE (window))
{
g_warning (G_STRLOC " window is not a native Win32 window");
return NULL;
}
return GDK_SURFACE_HWND (window);
}
#define LAST_PROP 1
typedef struct
{
GdkWin32Surface parent_instance;
} GdkWin32Popup;
typedef struct
{
GdkWin32SurfaceClass parent_class;
} GdkWin32PopupClass;
static void gdk_win32_popup_iface_init (GdkPopupInterface *iface);
G_DEFINE_TYPE_WITH_CODE (GdkWin32Popup, gdk_win32_popup, GDK_TYPE_WIN32_SURFACE,
G_IMPLEMENT_INTERFACE (GDK_TYPE_POPUP,
gdk_win32_popup_iface_init))
static void
gdk_win32_popup_init (GdkWin32Popup *popup)
{
}
static void
gdk_win32_popup_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GdkSurface *surface = GDK_SURFACE (object);
switch (prop_id)
{
case LAST_PROP + GDK_POPUP_PROP_PARENT:
g_value_set_object (value, surface->parent);
break;
case LAST_PROP + GDK_POPUP_PROP_AUTOHIDE:
g_value_set_boolean (value, surface->autohide);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdk_win32_popup_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GdkSurface *surface = GDK_SURFACE (object);
switch (prop_id)
{
case LAST_PROP + GDK_POPUP_PROP_PARENT:
surface->parent = g_value_dup_object (value);
if (surface->parent != NULL)
surface->parent->children = g_list_prepend (surface->parent->children, surface);
break;
case LAST_PROP + GDK_POPUP_PROP_AUTOHIDE:
surface->autohide = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdk_win32_popup_class_init (GdkWin32PopupClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->get_property = gdk_win32_popup_get_property;
object_class->set_property = gdk_win32_popup_set_property;
gdk_popup_install_properties (object_class, 1);
}
static gboolean
gdk_win32_popup_present (GdkPopup *popup,
int width,
int height,
GdkPopupLayout *layout)
{
return gdk_win32_surface_present_popup (GDK_SURFACE (popup), width, height, layout);
}
static GdkGravity
gdk_win32_popup_get_surface_anchor (GdkPopup *popup)
{
return GDK_SURFACE (popup)->popup.surface_anchor;
}
static GdkGravity
gdk_win32_popup_get_rect_anchor (GdkPopup *popup)
{
return GDK_SURFACE (popup)->popup.rect_anchor;
}
static int
gdk_win32_popup_get_position_x (GdkPopup *popup)
{
return GDK_SURFACE (popup)->x;
}
static int
gdk_win32_popup_get_position_y (GdkPopup *popup)
{
return GDK_SURFACE (popup)->y;
}
static void
gdk_win32_popup_iface_init (GdkPopupInterface *iface)
{
iface->present = gdk_win32_popup_present;
iface->get_surface_anchor = gdk_win32_popup_get_surface_anchor;
iface->get_rect_anchor = gdk_win32_popup_get_rect_anchor;
iface->get_position_x = gdk_win32_popup_get_position_x;
iface->get_position_y = gdk_win32_popup_get_position_y;
}
typedef struct
{
GdkWin32Surface parent_instance;
} GdkWin32Toplevel;
typedef struct
{
GdkWin32SurfaceClass parent_class;
} GdkWin32ToplevelClass;
static void gdk_win32_toplevel_iface_init (GdkToplevelInterface *iface);
G_DEFINE_TYPE_WITH_CODE (GdkWin32Toplevel, gdk_win32_toplevel, GDK_TYPE_WIN32_SURFACE,
G_IMPLEMENT_INTERFACE (GDK_TYPE_TOPLEVEL,
gdk_win32_toplevel_iface_init))
static void
gdk_win32_toplevel_init (GdkWin32Toplevel *toplevel)
{
}
static void
gdk_win32_toplevel_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GdkSurface *surface = GDK_SURFACE (object);
switch (prop_id)
{
case LAST_PROP + GDK_TOPLEVEL_PROP_TITLE:
gdk_win32_surface_set_title (surface, g_value_get_string (value));
g_object_notify_by_pspec (G_OBJECT (surface), pspec);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_STARTUP_ID:
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_TRANSIENT_FOR:
gdk_win32_surface_set_transient_for (surface, g_value_get_object (value));
g_object_notify_by_pspec (G_OBJECT (surface), pspec);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_MODAL:
GDK_SURFACE (surface)->modal_hint = g_value_get_boolean (value);
if (GDK_SURFACE (surface)->modal_hint)
{
SetCapture (GDK_SURFACE_HWND (surface));
_gdk_push_modal_window (surface);
}
g_object_notify_by_pspec (G_OBJECT (surface), pspec);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_ICON_LIST:
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_DECORATED:
GDK_WIN32_SURFACE (surface)->decorate_all = g_value_get_boolean (value);
_gdk_win32_surface_update_style_bits (surface);
g_object_notify_by_pspec (G_OBJECT (surface), pspec);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_DELETABLE:
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_FULLSCREEN_MODE:
surface->fullscreen_mode = g_value_get_enum (value);
g_object_notify_by_pspec (G_OBJECT (surface), pspec);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_SHORTCUTS_INHIBITED:
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdk_win32_toplevel_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GdkSurface *surface = GDK_SURFACE (object);
switch (prop_id)
{
case LAST_PROP + GDK_TOPLEVEL_PROP_STATE:
g_value_set_flags (value, surface->state);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_TITLE:
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_STARTUP_ID:
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_TRANSIENT_FOR:
g_value_set_object (value, surface->transient_for);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_MODAL:
g_value_set_boolean (value, GDK_SURFACE (surface)->modal_hint);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_ICON_LIST:
g_value_set_pointer (value, NULL);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_DECORATED:
g_value_set_boolean (value, GDK_WIN32_SURFACE (surface)->decorate_all);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_DELETABLE:
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_FULLSCREEN_MODE:
g_value_set_enum (value, surface->fullscreen_mode);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_SHORTCUTS_INHIBITED:
g_value_set_boolean (value, surface->shortcuts_inhibited);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdk_win32_toplevel_class_init (GdkWin32ToplevelClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->get_property = gdk_win32_toplevel_get_property;
object_class->set_property = gdk_win32_toplevel_set_property;
gdk_toplevel_install_properties (object_class, 1);
}
static void
gdk_win32_toplevel_present (GdkToplevel *toplevel,
GdkToplevelLayout *layout)
{
GdkSurface *surface = GDK_SURFACE (toplevel);
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
int width, height;
gboolean maximize;
gboolean fullscreen;
g_clear_pointer (&impl->toplevel_layout, gdk_toplevel_layout_unref);
impl->toplevel_layout = gdk_toplevel_layout_copy (layout);
compute_toplevel_size (surface, FALSE, &width, &height);
gdk_win32_surface_resize (surface, width, height);
if (gdk_toplevel_layout_get_maximized (layout, &maximize))
{
if (maximize)
gdk_win32_surface_maximize (surface);
else
gdk_win32_surface_unmaximize (surface);
}
if (gdk_toplevel_layout_get_fullscreen (layout, &fullscreen))
{
if (fullscreen)
gdk_win32_surface_fullscreen (surface);
else
gdk_win32_surface_unfullscreen (surface);
}
gdk_win32_surface_show (surface, FALSE);
maybe_notify_mapped (surface);
}
static gboolean
gdk_win32_toplevel_minimize (GdkToplevel *toplevel)
{
gdk_win32_surface_minimize (GDK_SURFACE (toplevel));
return TRUE;
}
static gboolean
gdk_win32_toplevel_lower (GdkToplevel *toplevel)
{
return FALSE;
}
static void
gdk_win32_toplevel_focus (GdkToplevel *toplevel,
guint32 timestamp)
{
gdk_win32_surface_focus (GDK_SURFACE (toplevel), timestamp);
}
static gboolean
gdk_win32_toplevel_show_window_menu (GdkToplevel *toplevel,
GdkEvent *event)
{
return gdk_win32_surface_show_window_menu (GDK_SURFACE (toplevel), event);
}
static gboolean
gdk_win32_toplevel_supports_edge_constraints (GdkToplevel *toplevel)
{
return FALSE;
}
static void
gdk_win32_toplevel_iface_init (GdkToplevelInterface *iface)
{
iface->present = gdk_win32_toplevel_present;
iface->minimize = gdk_win32_toplevel_minimize;
iface->lower = gdk_win32_toplevel_lower;
iface->focus = gdk_win32_toplevel_focus;
iface->show_window_menu = gdk_win32_toplevel_show_window_menu;
iface->supports_edge_constraints = gdk_win32_toplevel_supports_edge_constraints;
iface->begin_resize = gdk_win32_toplevel_begin_resize;
iface->begin_move = gdk_win32_toplevel_begin_move;
}
typedef struct
{
GdkWin32Surface parent_instance;
} GdkWin32DragSurface;
typedef struct
{
GdkWin32SurfaceClass parent_class;
} GdkWin32DragSurfaceClass;
static void gdk_win32_drag_surface_iface_init (GdkDragSurfaceInterface *iface);
G_DEFINE_TYPE_WITH_CODE (GdkWin32DragSurface, gdk_win32_drag_surface, GDK_TYPE_WIN32_SURFACE,
G_IMPLEMENT_INTERFACE (GDK_TYPE_DRAG_SURFACE,
gdk_win32_drag_surface_iface_init))
static void
gdk_win32_drag_surface_init (GdkWin32DragSurface *surface)
{
}
static void
gdk_win32_drag_surface_class_init (GdkWin32DragSurfaceClass *class)
{
}
static gboolean
gdk_win32_drag_surface_present (GdkDragSurface *drag_surface,
int width,
int height)
{
GdkSurface *surface = GDK_SURFACE (drag_surface);
gdk_win32_surface_resize (surface, width, height);
gdk_win32_surface_show (surface, FALSE);
maybe_notify_mapped (surface);
return TRUE;
}
static void
gdk_win32_drag_surface_iface_init (GdkDragSurfaceInterface *iface)
{
iface->present = gdk_win32_drag_surface_present;
}
#ifdef GDK_WIN32_ENABLE_EGL
EGLSurface
_gdk_win32_surface_get_egl_surface (GdkSurface *surface,
EGLConfig config,
gboolean is_dummy)
{
GdkWin32Display *display = GDK_WIN32_DISPLAY (gdk_surface_get_display (surface));
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
if (is_dummy)
{
if (impl->egl_dummy_surface == EGL_NO_SURFACE)
{
EGLint attribs[] = {EGL_WIDTH, 1, EGL_WIDTH, 1, EGL_NONE};
impl->egl_dummy_surface = eglCreatePbufferSurface (display->egl_disp,
config,
attribs);
}
return impl->egl_dummy_surface;
}
else
{
if (impl->egl_surface == EGL_NO_SURFACE)
impl->egl_surface = eglCreateWindowSurface (display->egl_disp, config, display->gl_hwnd, NULL);
return impl->egl_surface;
}
}
#endif
static void
gdk_win32_surface_get_queued_window_rect (GdkSurface *surface,
int scale,
RECT *return_window_rect)
{
RECT window_rect;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
_gdk_win32_get_window_client_area_rect (surface, scale, &window_rect);
/* Turn client area into window area */
_gdk_win32_adjust_client_rect (surface, &window_rect);
/* Convert GDK screen coordinates to W32 desktop coordinates */
window_rect.left -= _gdk_offset_x * impl->surface_scale;
window_rect.right -= _gdk_offset_x * impl->surface_scale;
window_rect.top -= _gdk_offset_y * impl->surface_scale;
window_rect.bottom -= _gdk_offset_y * impl->surface_scale;
*return_window_rect = window_rect;
}
static void
gdk_win32_surface_apply_queued_move_resize (GdkSurface *surface,
RECT window_rect)
{
if (!IsIconic (GDK_SURFACE_HWND (surface)))
{
GDK_NOTE (EVENTS, g_print ("Setting window position ... "));
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (surface),
SWP_NOZORDER_SPECIFIED,
window_rect.left, window_rect.top,
window_rect.right - window_rect.left,
window_rect.bottom - window_rect.top,
SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW));
GDK_NOTE (EVENTS, g_print (" ... set window position\n"));
return;
}
/* Don't move iconic windows */
/* TODO: use SetWindowPlacement() to change non-minimized window position */
}
RECT
gdk_win32_surface_handle_queued_move_resize (GdkDrawContext *draw_context)
{
GdkWin32CairoContext *cairo_ctx = NULL;
GdkSurface *surface;
GdkWin32Surface *impl;
int scale;
RECT queued_window_rect;
surface = gdk_draw_context_get_surface (draw_context);
impl = GDK_WIN32_SURFACE (surface);
scale = gdk_surface_get_scale_factor (surface);
if (GDK_IS_WIN32_CAIRO_CONTEXT (draw_context))
{
cairo_ctx = GDK_WIN32_CAIRO_CONTEXT (draw_context);
cairo_ctx->layered = impl->layered;
}
gdk_win32_surface_get_queued_window_rect (surface, scale, &queued_window_rect);
/* Apply queued resizes for non-double-buffered and non-layered windows
* before painting them (we paint on the window DC directly,
* it must have the right size).
* Due to some poorly-undetstood issue delayed
* resizing of double-buffered windows can produce weird
* artefacts, so these are also resized before we paint.
*/
if (impl->drag_move_resize_context.native_move_resize_pending &&
(cairo_ctx == NULL || !cairo_ctx->layered))
{
impl->drag_move_resize_context.native_move_resize_pending = FALSE;
gdk_win32_surface_apply_queued_move_resize (surface, queued_window_rect);
}
return queued_window_rect;
}
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