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gtk/gdk/win32/gdksurface-win32.c
G.Willems 4c46f5a8f7 GdkWin32: ignore invalid client rects 
Gdk-Win32 uses GetClientRect() internally to query the surfaces coordinates,
but this API may fail in some transient contexts (observed when iconifying
a maximized window).
Check if the rect area is null, and don't update the surface position in
that case. This will keep the current surface size, until Win32 notifies
the new valid window state later.
This prevents using a nulled next_layout for toplevel size computation,
which would break widgets allocation once notified on gtk side.

Fixes #5724
Closes #5724
2023-09-19 20:29:04 +02:00

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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 "gdkprivate-win32.h"
#include "gdkdeviceprivate.h"
#include "gdkdevicemanager-win32.h"
#include "gdkenumtypes.h"
#include "gdkwin32.h"
#include "gdkdisplayprivate.h"
#include "gdkdragsurfaceprivate.h"
#include "gdkframeclockidleprivate.h"
#include "gdkmonitorprivate.h"
#include "gdkpopupprivate.h"
#include "gdkseatprivate.h"
#include "gdksurfaceprivate.h"
#include "gdktoplevelprivate.h"
#include "gdkwin32surface.h"
#include "gdkwin32cursor.h"
#include "gdkinput-dmanipulation.h"
#include "gdkinput-winpointer.h"
#include "gdkglcontext-win32.h"
#include "gdkdisplay-win32.h"
#include "gdkdevice-win32.h"
#include "gdkcairocontext-win32.h"
#include "gdkmonitor-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 void gdk_win32_toplevel_state_callback (GdkSurface *surface);
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)
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;
}
_gdk_win32_surface_unregister_dnd (GDK_SURFACE (surface));
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)
{
DWM_BLURBEHIND blur_behind;
HRGN empty_region;
HRESULT call_result;
HWND thiswindow;
if (window == NULL || GDK_SURFACE_HWND (window) == NULL)
return FALSE;
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 (GType 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 = this_module ();
wcl.hIcon = 0;
wcl.hIconSm = 0;
/* initialize once! */
if (0 == hAppIcon && 0 == hAppIconSm)
{
char sLoc [MAX_PATH+1];
// try to load first icon of executable program
if (0 != GetModuleFileName (NULL, sLoc, MAX_PATH))
{
ExtractIconEx (sLoc, 0, &hAppIcon, &hAppIconSm, 1);
if (0 == hAppIcon && 0 == hAppIconSm)
{
// fallback : load icon from GTK DLL
if (0 != GetModuleFileName (this_module (), 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);
/* MSDN: CS_OWNDC is needed for OpenGL contexts */
wcl.style |= CS_OWNDC;
if (wtype != GDK_TYPE_WIN32_DRAG_SURFACE)
{
if (0 == klassTOPLEVEL)
{
wcl.lpszClassName = L"gdkSurfaceToplevel";
ONCE_PER_CLASS ();
klassTOPLEVEL = RegisterClassExW (&wcl);
}
klass = klassTOPLEVEL;
}
else
{
if (klassTEMP == 0)
{
wcl.lpszClassName = L"gdkSurfaceTemp";
wcl.style |= CS_SAVEBITS;
ONCE_PER_CLASS ();
klassTEMP = RegisterClassExW (&wcl);
}
klass = klassTEMP;
}
if (klass == 0)
{
WIN32_API_FAILED ("RegisterClassExW");
g_error ("That is a fatal error");
}
return klass;
}
static void
gdk_win32_surface_constructed (GObject *object)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (object);
GdkSurface *surface = GDK_SURFACE (impl);
GdkDisplay *display = gdk_surface_get_display (surface);
GdkWin32Display *display_win32 = GDK_WIN32_DISPLAY (display);
GdkFrameClock *frame_clock;
HANDLE owner;
ATOM klass = 0;
DWORD dwStyle = 0, dwExStyle;
RECT rect;
const char *title;
wchar_t *wtitle;
impl->surface_scale = gdk_win32_display_get_monitor_scale_factor (display_win32, NULL, NULL);
dwExStyle = 0;
owner = NULL;
/* MSDN: We need WS_CLIPCHILDREN and WS_CLIPSIBLINGS for GL Context Creation */
dwStyle = WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
if (G_OBJECT_TYPE (impl) == GDK_TYPE_WIN32_TOPLEVEL)
{
dwStyle |= WS_OVERLAPPEDWINDOW;
frame_clock = _gdk_frame_clock_idle_new ();
}
else if (G_OBJECT_TYPE (impl) == GDK_TYPE_WIN32_DRAG_SURFACE)
{
dwExStyle |= WS_EX_TOOLWINDOW | WS_EX_TOPMOST;
dwStyle |= WS_POPUP;
frame_clock = _gdk_frame_clock_idle_new ();
}
else if (G_OBJECT_TYPE (impl) == GDK_TYPE_WIN32_POPUP)
{
GdkSurface *parent = gdk_popup_get_parent (GDK_POPUP (impl));
dwStyle |= WS_POPUP;
owner = GDK_SURFACE_HWND (parent);
frame_clock = g_object_ref (gdk_surface_get_frame_clock (parent));
}
else
{
g_assert_not_reached ();
}
gdk_surface_set_frame_clock (surface, frame_clock);
g_object_unref (frame_clock);
title = get_default_title ();
if (!title || !*title)
title = "";
klass = RegisterGdkClass (G_OBJECT_TYPE (impl));
wtitle = g_utf8_to_utf16 (title, -1, NULL, NULL, NULL);
impl->handle = CreateWindowExW (dwExStyle,
MAKEINTRESOURCEW (klass),
wtitle,
dwStyle,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
owner,
NULL,
this_module (),
surface);
if (impl->handle == NULL)
{
WIN32_API_FAILED ("CreateWindowExW");
g_error ("Fatal error: CreateWindowExW failed.");
}
GetWindowRect (impl->handle, &rect);
impl->initial_x = rect.left;
impl->initial_y = rect.top;
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);
g_free (wtitle);
gdk_surface_set_egl_native_window (surface, (void *) impl->handle);
if (G_OBJECT_TYPE (impl) != GDK_TYPE_WIN32_DRAG_SURFACE)
{
if (display_win32->tablet_input_api == GDK_WIN32_TABLET_INPUT_API_WINPOINTER)
gdk_winpointer_initialize_surface (surface);
gdk_dmanipulation_initialize_surface (surface);
}
_gdk_win32_surface_enable_transparency (surface);
_gdk_win32_surface_register_dnd (surface);
_gdk_win32_surface_update_style_bits (surface);
g_signal_connect (frame_clock,
"after-paint",
G_CALLBACK (gdk_win32_impl_frame_clock_after_paint),
impl);
impl->hdc = GetDC (impl->handle);
impl->inhibit_configure = TRUE;
G_OBJECT_CLASS (parent_class)->constructed (object);
}
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);
}
/* Remove ourself from our transient owner */
if (surface->transient_owner != NULL)
{
gdk_win32_surface_set_transient_for (window, NULL);
}
if (!foreign_destroy)
{
gdk_surface_set_egl_native_window (window, NULL);
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,
GdkMonitor *monitor);
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;
/* 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 * surface->surface_scale;
center_on_rect.top = owner->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)
{
GetWindowRect (GDK_SURFACE_HWND (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_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);
}
exstyle = GetWindowLong (GDK_SURFACE_HWND (window), GWL_EXSTYLE);
/* 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);
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 * impl->surface_scale,
y * impl->surface_scale));
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (window),
SWP_NOZORDER_SPECIFIED,
x * impl->surface_scale,
y * impl->surface_scale,
0, 0,
SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOZORDER));
}
void
gdk_win32_surface_resize (GdkSurface *surface,
int width,
int height)
{
RECT outer_rect;
g_return_if_fail (GDK_IS_SURFACE (surface));
if (GDK_SURFACE_DESTROYED (surface))
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 (surface), width, height));
if (surface->state & GDK_TOPLEVEL_STATE_FULLSCREEN)
return;
get_outer_rect (surface, width, height, &outer_rect);
GDK_NOTE (MISC, g_print ("... SetWindowPos(%p,NULL,0,0,%ld,%ld,"
"NOACTIVATE|NOMOVE|NOZORDER)\n",
GDK_SURFACE_HWND (surface),
outer_rect.right - outer_rect.left,
outer_rect.bottom - outer_rect.top));
API_CALL (SetWindowPos, (GDK_SURFACE_HWND (surface),
SWP_NOZORDER_SPECIFIED,
0, 0,
outer_rect.right - outer_rect.left,
outer_rect.bottom - outer_rect.top,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER));
surface->resize_count += 1;
if (!GDK_WIN32_SURFACE (surface)->force_recompute_size)
gdk_surface_request_layout (surface);
}
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 * impl->surface_scale,
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 * impl->surface_scale,
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)
{
/* 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_set_shadow_width (GdkSurface *window,
int left,
int right,
int top,
int bottom);
static void
gdk_win32_surface_layout_popup (GdkSurface *surface,
int width,
int height,
GdkPopupLayout *layout)
{
GdkMonitor *monitor;
GdkRectangle bounds;
GdkRectangle final_rect;
int x, y;
int shadow_left, shadow_right, shadow_top, shadow_bottom;
monitor = gdk_surface_get_layout_monitor (surface, layout,
gdk_win32_monitor_get_workarea);
if (!monitor)
{
GdkDisplay *display = gdk_surface_get_display (surface);
monitor = gdk_win32_display_get_primary_monitor (display);
}
gdk_win32_monitor_get_workarea (monitor, &bounds);
gdk_popup_layout_get_shadow_width (layout,
&shadow_left,
&shadow_right,
&shadow_top,
&shadow_bottom);
gdk_win32_surface_set_shadow_width (surface,
shadow_left,
shadow_right,
shadow_top,
shadow_bottom);
gdk_surface_layout_popup_helper (surface,
width,
height,
shadow_left,
shadow_right,
shadow_top,
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));
}
}
/**
* gdk_win32_surface_set_urgency_hint:
* @surface: (type GdkWin32Surface): a native `GdkSurface`.
* @urgent: if %TRUE, flashes both the window and the taskbar button
* continuously.
*
* Flashes the specified @surface.
*/
void
gdk_win32_surface_set_urgency_hint (GdkSurface *surface,
gboolean urgent)
{
FLASHWINFO flashwinfo;
g_return_if_fail (GDK_IS_WIN32_SURFACE (surface));
if (GDK_SURFACE_DESTROYED (surface))
return;
flashwinfo.cbSize = sizeof (flashwinfo);
flashwinfo.hwnd = GDK_SURFACE_HWND (surface);
if (urgent)
flashwinfo.dwFlags = FLASHW_ALL | FLASHW_TIMER;
else
flashwinfo.dwFlags = FLASHW_STOP;
flashwinfo.uCount = 0;
flashwinfo.dwTimeout = 0;
FlashWindowEx (&flashwinfo);
}
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
{
*decoration = GDK_DECOR_ALL;
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);
if (GDK_IS_TOPLEVEL (window) && impl->drag_move_resize_context.native_move_resize_pending)
rect = impl->next_layout.configured_rect;
else
{
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;
API_CALL (GetClientRect, (GDK_SURFACE_HWND (window), &rect));
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 (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 / impl->surface_scale;
if (root_y)
*root_y = ty / 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 / impl->surface_scale,
ty / 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);
*/
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)
{
GdkWMDecoration decorations;
LONG old_style, new_style, old_exstyle, new_exstyle;
gboolean all;
RECT rect, before, after;
gboolean was_topmost;
gboolean will_be_topmost;
gboolean was_layered;
gboolean will_be_layered;
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;
was_layered = (old_exstyle & WS_EX_LAYERED) ? TRUE : FALSE;
will_be_topmost = was_topmost;
will_be_layered = was_layered;
old_exstyle &= ~WS_EX_TOPMOST;
new_style = old_style;
new_exstyle = old_exstyle;
if (GDK_IS_DRAG_SURFACE (window))
{
new_exstyle |= WS_EX_TOOLWINDOW;
/* WS_EX_LAYERED | WS_EX_TRANSPARENT makes the drag surface behave
* in pointer input passthrough mode, so it doesn't interfere with
* the drag and drop operation.
*/
new_exstyle |= WS_EX_LAYERED | WS_EX_TRANSPARENT;
will_be_topmost = TRUE;
will_be_layered = TRUE;
}
else
{
new_exstyle &= ~WS_EX_TOOLWINDOW;
}
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);
if (!was_layered && will_be_layered)
{
/* We have to call SetLayeredWindowAttributes when setting the
* WS_EX_LAYERED style anew, otherwise the window won't show up
*/
API_CALL (SetLayeredWindowAttributes, (GDK_SURFACE_HWND (window), 0, 255, LWA_ALPHA));
}
}
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 *surface)
{
SHORT maxysize;
int x, y;
int width, height;
GdkWin32Surface *impl;
impl = GDK_WIN32_SURFACE (surface);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_FULLUP;
stash_window (surface, impl);
maxysize = GetSystemMetrics (SM_CYVIRTUALSCREEN) / impl->surface_scale;
x = y = 0;
width = gdk_surface_get_width (surface);
y = 0;
height = maxysize;
x = surface->x - impl->shadow.left / impl->surface_scale;
y = y - impl->shadow.top / impl->surface_scale;
width += impl->shadow_x;
height += impl->shadow_y;
gdk_win32_surface_move_resize (surface, x, y, width, height);
}
static void
snap_left (GdkSurface *surface,
GdkMonitor *monitor,
GdkMonitor *snap_monitor)
{
GdkRectangle rect;
GdkWin32Surface *impl;
impl = GDK_WIN32_SURFACE (surface);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_HALFLEFT;
gdk_win32_monitor_get_workarea (snap_monitor, &rect);
stash_window (surface, impl);
rect.width = rect.width / 2;
rect.x = rect.x - impl->shadow.left / impl->surface_scale;
rect.y = rect.y - impl->shadow.top / impl->surface_scale;
rect.width = rect.width + impl->shadow_x;
rect.height = rect.height + impl->shadow_y;
gdk_win32_surface_move_resize (surface,
rect.x, rect.y,
rect.width, rect.height);
}
static void
snap_right (GdkSurface *surface,
GdkMonitor *monitor,
GdkMonitor *snap_monitor)
{
GdkRectangle rect;
GdkWin32Surface *impl;
impl = GDK_WIN32_SURFACE (surface);
impl->snap_state = GDK_WIN32_AEROSNAP_STATE_HALFRIGHT;
gdk_win32_monitor_get_workarea (snap_monitor, &rect);
stash_window (surface, impl);
rect.width = rect.width / 2;
rect.x += rect.width;
rect.x = rect.x - impl->shadow.left / impl->surface_scale;
rect.y = rect.y - impl->shadow.top / impl->surface_scale;
rect.width = rect.width + impl->shadow_x;
rect.height = rect.height + impl->shadow_y;
gdk_win32_surface_move_resize (surface,
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 *surface,
GdkWin32AeroSnapState snap)
{
GdkMonitor *monitor;
GdkDisplay *display;
display = gdk_surface_get_display (surface);
monitor = gdk_display_get_monitor_at_surface (display, surface);
switch (snap)
{
case GDK_WIN32_AEROSNAP_STATE_UNDETERMINED:
break;
case GDK_WIN32_AEROSNAP_STATE_MAXIMIZE:
unsnap (surface, monitor);
gdk_win32_surface_maximize (surface);
break;
case GDK_WIN32_AEROSNAP_STATE_HALFLEFT:
unsnap (surface, monitor);
snap_left (surface, monitor, monitor);
break;
case GDK_WIN32_AEROSNAP_STATE_HALFRIGHT:
unsnap (surface, monitor);
snap_right (surface, monitor, monitor);
break;
case GDK_WIN32_AEROSNAP_STATE_FULLUP:
snap_up (surface);
break;
}
if (snap != GDK_WIN32_AEROSNAP_STATE_UNDETERMINED)
{
GDK_WIN32_SURFACE (surface)->inhibit_configure = TRUE;
GDK_WIN32_SURFACE (surface)->force_recompute_size = FALSE;
}
}
/* 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 = this_module ();
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,
this_module (),
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 * impl->surface_scale;
window_position.y = context->indicator_window_rect.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.x = window->x;
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:
start_size.x = end_size.x = window->x;
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 *surface,
GdkW32DragMoveResizeContext *context,
GdkW32WindowDragOp op,
GdkSurfaceEdge edge,
GdkDevice *device,
int button,
double x,
double y,
guint32 timestamp)
{
RECT rect;
const char *cursor_name;
GdkSurface *pointer_surface;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
gboolean maximized = gdk_toplevel_get_state (GDK_TOPLEVEL (surface)) & GDK_TOPLEVEL_STATE_MAXIMIZED;
int root_x, root_y;
gboolean restore_configure = FALSE;
gdk_win32_surface_get_root_coords (surface, 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 surface 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 surface 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 (surface);
restore_configure = TRUE;
}
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_surface;
int offsetx, offsety;
gboolean left_half;
GdkDisplay *display;
restore_configure = TRUE;
display = gdk_surface_get_display (surface);
monitor = gdk_display_get_monitor_at_surface (display, surface);
gdk_surface_get_geometry (surface, &wx, &wy, &wwidth, &wheight);
swx = wx;
swy = wy;
swwidth = wwidth;
swheight = wheight;
/* Subtract surface shadow. We don't want pointer to go outside of
* the visible surface during drag-move. For drag-resize it's OK.
* Don't take shadow into account if the surface is maximized -
* maximized surfaces 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_surface = root_x < swx || root_x > swx + swwidth ||
root_y < swy || root_y > swy + swheight;
/* Calculate the offset of the pointer relative to the surface */
offsetx = root_x - swx;
offsety = root_y - swy;
/* Figure out in which half of the surface the pointer is.
* The code currently only concerns itself with horizontal
* dimension (left/right halves).
* There's no upper/lower half, because usually surface
* 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 surface's %s\n",
root_x, root_y, offsetx, offsety,
left_half ? "left half" : "right half"));
/* Move surface in such a way that on unmaximization/unsnapping the pointer
* is still pointing at the appropriate half of the surface,
* with the same offset from the left or right edge. If the new
* surface 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_surface && 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 (surface), &placement));
GDK_NOTE (MISC, g_print ("W32 WM unmaximized surface placement is %ld x %ld @ %ld : %ld\n",
placement.rcNormalPosition.right - placement.rcNormalPosition.left,
placement.rcNormalPosition.bottom - placement.rcNormalPosition.top,
placement.rcNormalPosition.left,
placement.rcNormalPosition.top));
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) * impl->surface_scale;
placement.rcNormalPosition.bottom = placement.rcNormalPosition.top + unmax_height;
if (left_half)
{
placement.rcNormalPosition.left = (root_x - offsetx + impl->shadow.left) * impl->surface_scale;
placement.rcNormalPosition.right = placement.rcNormalPosition.left + unmax_width;
}
else
{
placement.rcNormalPosition.right = (root_x + offsetx + impl->shadow.right) * impl->surface_scale;
placement.rcNormalPosition.left = placement.rcNormalPosition.right - unmax_width;
}
}
else
{
placement.rcNormalPosition.left = root_x * impl->surface_scale - unmax_width / 2;
if (offsety * impl->surface_scale < shadow_unmax_height / 2)
placement.rcNormalPosition.top = (root_y - offsety + impl->shadow.top) * impl->surface_scale;
else
placement.rcNormalPosition.top = root_y * impl->surface_scale - unmax_height / 2;
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,
placement.rcNormalPosition.top));
API_CALL (SetWindowPlacement, (GDK_SURFACE_HWND (surface), &placement));
}
else if (!pointer_outside_of_surface && 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 surface to %d : %d\n",
new_pos.x, new_pos.y));
discard_snapinfo (surface);
gdk_win32_surface_move_resize (surface, new_pos.x, new_pos.y,
new_pos.width, new_pos.height);
}
if (maximized)
gdk_win32_surface_unmaximize (surface);
else
unsnap (surface, monitor);
if (pointer_outside_of_surface)
{
/* Pointer outside of the surface, move pointer into surface */
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, root_y);
}
}
if (restore_configure)
impl->inhibit_configure = FALSE;
_gdk_win32_get_window_rect (surface, &rect);
cursor_name = get_cursor_name_from_op (op, edge);
context->cursor = gdk_cursor_new_from_name (cursor_name, NULL);
pointer_surface = surface;
/* 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_surface,
FALSE,
GDK_ALL_EVENTS_MASK,
context->cursor,
timestamp);
context->window = g_object_ref (surface);
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->current_root_x = root_x;
context->current_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: surface %p, toplevel %p, "
"op %u, edge %d, device %p, "
"button %d, coord %d:%d, time %u\n",
pointer_surface, surface,
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)
{
/* Turn client area into window area */
_gdk_win32_adjust_client_rect (window, window_rect);
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_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;
x /= impl->surface_scale;
y /= impl->surface_scale;
if (context->current_root_x == x &&
context->current_root_y == y)
return;
context->current_root_x = x;
context->current_root_y = y;
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->next_layout.configured_rect = new_rect;
impl->next_layout.configured_width = (new_rect.right - new_rect.left + scale - 1) / scale;
impl->next_layout.configured_height = (new_rect.bottom - new_rect.top + scale - 1) / scale;
}
context->native_move_resize_pending = TRUE;
}
else if (context->op == GDK_WIN32_DRAGOP_MOVE &&
(rect.left != new_rect.left ||
rect.top != new_rect.top))
{
SIZE window_size;
POINT window_position;
context->native_move_resize_pending = FALSE;
gdk_surface_request_layout (window);
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 *surface)
{
GdkWin32Surface *impl;
g_return_if_fail (GDK_IS_SURFACE (surface));
if (GDK_SURFACE_DESTROYED (surface))
return;
GDK_NOTE (MISC, g_print ("gdk_surface_maximize: %p: %s\n",
GDK_SURFACE_HWND (surface),
_gdk_win32_surface_state_to_string (surface->state)));
impl = GDK_WIN32_SURFACE (surface);
impl->inhibit_configure = TRUE;
impl->force_recompute_size = FALSE;
if (GDK_SURFACE_IS_MAPPED (surface))
GtkShowWindow (surface, SW_MAXIMIZE);
else
gdk_synthesize_surface_state (surface,
0,
GDK_TOPLEVEL_STATE_MAXIMIZED);
}
static void
gdk_win32_surface_unmaximize (GdkSurface *surface)
{
GdkWin32Surface *impl;
g_return_if_fail (GDK_IS_SURFACE (surface));
if (GDK_SURFACE_DESTROYED (surface))
return;
GDK_NOTE (MISC, g_print ("gdk_surface_unmaximize: %p: %s\n",
GDK_SURFACE_HWND (surface),
_gdk_win32_surface_state_to_string (surface->state)));
_gdk_win32_surface_invalidate_egl_framebuffer (surface);
if (GDK_SURFACE_IS_MAPPED (surface))
GtkShowWindow (surface, SW_RESTORE);
else
gdk_synthesize_surface_state (surface,
GDK_TOPLEVEL_STATE_MAXIMIZED,
0);
impl = GDK_WIN32_SURFACE (surface);
if (impl->inhibit_configure)
{
impl->inhibit_configure = FALSE;
impl->force_recompute_size = TRUE;
}
}
static void
gdk_win32_surface_fullscreen (GdkSurface *window,
GdkMonitor *monitor)
{
int x, y, width, height;
FullscreenInfo *fi;
HMONITOR hmonitor = NULL;
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);
if (monitor && GDK_IS_WIN32_MONITOR (monitor))
hmonitor = GDK_WIN32_MONITOR (monitor)->hmonitor;
if (!hmonitor)
hmonitor = MonitorFromWindow (GDK_SURFACE_HWND (window), MONITOR_DEFAULTTONEAREST);
mi.cbSize = sizeof (mi);
if (hmonitor && GetMonitorInfo (hmonitor, &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);
impl->inhibit_configure = TRUE;
impl->force_recompute_size = FALSE;
/* 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 | SWP_FRAMECHANGED));
}
}
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 | SWP_FRAMECHANGED));
g_object_set_data (G_OBJECT (window), "fullscreen-info", NULL);
g_free (fi);
_gdk_win32_surface_update_style_bits (window);
if (impl->inhibit_configure)
{
impl->inhibit_configure = FALSE;
impl->force_recompute_size = TRUE;
}
}
}
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));
}
/**
* gdk_win32_surface_lookup_for_display:
* @display: a %GdkDisplay
* @anid: a HWND window handle
*
* Returns: (nullable): the %GdkSurface associated with the given @anid, or %NULL.
*/
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);
}
/**
* gdk_win32_surface_is_win32:
* @surface: a `GdkSurface`
*
* Returns: %TRUE if the @surface is a win32 implemented surface.
*
* Deprecated: 4.8: Use `GDK_IS_WIN32_SURFACE` instead.
*/
gboolean
gdk_win32_surface_is_win32 (GdkSurface *surface)
{
return GDK_IS_WIN32_SURFACE (surface);
}
static gboolean
gdk_win32_surface_show_window_menu (GdkSurface *surface,
GdkEvent *event)
{
double event_x, event_y;
int x, y;
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
GdkEventType event_type = gdk_event_get_event_type (event);
switch ((int) 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);
gdk_win32_surface_get_root_coords (surface, event_x, event_y, &x, &y);
SendMessage (GDK_SURFACE_HWND (surface),
WM_SYSMENU,
0,
MAKELPARAM (x * impl->surface_scale, y * impl->surface_scale));
return TRUE;
}
/**
* gdk_win32_surface_get_impl_hwnd:
* @surface: a `GdkSurface`
*
* Returns: the associated @surface HWND handle.
*
* Deprecated: 4.8: Use gdk_win32_surface_get_handle() instead.
*/
HWND
gdk_win32_surface_get_impl_hwnd (GdkSurface *surface)
{
if (GDK_IS_WIN32_SURFACE (surface))
return GDK_SURFACE_HWND (surface);
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;
/* 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->surface_scale;;
impl->shadow.right = right * impl->surface_scale;
impl->shadow.top = top * impl->surface_scale;;
impl->shadow.bottom = bottom * impl->surface_scale;
impl->shadow_x = left + right;
impl->shadow_y = top + bottom;
}
double
_gdk_win32_surface_get_scale (GdkSurface *surface)
{
GdkDisplay *display;
GdkWin32Surface *impl;
GdkWin32Display *win32_display;
g_return_val_if_fail (surface != NULL, 1);
display = gdk_surface_get_display (surface);
impl = GDK_WIN32_SURFACE (surface);
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,
surface,
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;
}
}
static void
gdk_win32_surface_set_input_region (GdkSurface *window,
cairo_region_t *input_region)
{
/* Input region support is implemented by handling the
* WM_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 (impl->drag_move_resize_context.native_move_resize_pending)
{
surface->width = impl->next_layout.configured_width;
surface->height = impl->next_layout.configured_height;
}
else
{
_gdk_win32_get_window_rect (surface, &rect);
/* Keep current position if rect is invalid (i.e. queried in bad context) */
if (rect.right == rect.left || rect.bottom == rect.top)
return;
impl->next_layout.configured_width = (rect.right - rect.left + scale - 1) / scale;
impl->next_layout.configured_height = (rect.bottom - rect.top + scale - 1) / scale;
if (GDK_IS_TOPLEVEL (surface))
{
surface->x = rect.left / scale;
surface->y = rect.top / scale;
}
else if (GDK_IS_POPUP (surface))
{
gdk_win32_surface_get_geometry (surface,
&surface->x, &surface->y,
NULL, NULL);
}
if (!impl->inhibit_configure)
impl->force_recompute_size = TRUE;
}
}
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->drag_move_resize_context.native_move_resize_pending)
{
if (GDK_IS_TOPLEVEL (surface) && impl->force_recompute_size)
{
surface->width = width;
surface->height = height;
gdk_win32_surface_resize (surface, width, height);
impl->force_recompute_size = FALSE;
}
else
{
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->constructed = gdk_win32_surface_constructed;
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->get_scale = _gdk_win32_surface_get_scale;
impl_class->request_layout = _gdk_win32_surface_request_layout;
impl_class->compute_size = _gdk_win32_surface_compute_size;
}
/**
* gdk_win32_surface_get_handle:
* @surface: (type GdkWin32Surface): a native `GdkSurface`.
*
* Returns the HWND handle belonging to @surface.
*
* Returns: the associated HWND handle.
*/
HWND
gdk_win32_surface_get_handle (GdkSurface *surface)
{
g_return_val_if_fail (GDK_IS_WIN32_SURFACE (surface), NULL);
return GDK_SURFACE_HWND (surface);
}
#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;
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_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;
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_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_constructed (GObject *object)
{
g_signal_connect (object, "notify::state",
G_CALLBACK (gdk_win32_toplevel_state_callback),
NULL);
G_OBJECT_CLASS (gdk_win32_toplevel_parent_class)->constructed (object);
}
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_finalize (GObject *object)
{
GdkWin32Surface *self = GDK_WIN32_SURFACE (object);
g_signal_handlers_disconnect_by_func (self,
gdk_win32_toplevel_state_callback,
NULL);
G_OBJECT_CLASS (gdk_win32_toplevel_parent_class)->finalize (object);
}
static void
gdk_win32_toplevel_class_init (GdkWin32ToplevelClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->constructed = gdk_win32_toplevel_constructed;
object_class->finalize = gdk_win32_toplevel_finalize;
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_init (GdkWin32Toplevel *toplevel)
{
}
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)
{
GdkMonitor *monitor;
monitor = gdk_toplevel_layout_get_fullscreen_monitor (layout);
gdk_win32_surface_fullscreen (surface, monitor);
}
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_inhibit_system_shortcuts (GdkToplevel *toplevel,
GdkEvent *gdk_event)
{
GdkSurface *surface = GDK_SURFACE (toplevel);
GdkSeat *gdk_seat;
GdkGrabStatus status;
if (surface->shortcuts_inhibited)
return; /* Already inhibited */
if (!(surface->state & GDK_TOPLEVEL_STATE_FOCUSED))
return;
gdk_seat = gdk_surface_get_seat_from_event (surface, gdk_event);
if (!(gdk_seat_get_capabilities (gdk_seat) & GDK_SEAT_CAPABILITY_KEYBOARD))
return;
status = gdk_seat_grab (gdk_seat, surface, GDK_SEAT_CAPABILITY_KEYBOARD,
TRUE, NULL, gdk_event, NULL, NULL);
if (status != GDK_GRAB_SUCCESS)
return;
// TODO: install a WH_KEYBOARD_LL hook to take alt-tab/win etc.
surface->shortcuts_inhibited = TRUE;
surface->current_shortcuts_inhibited_seat = gdk_seat;
g_object_notify (G_OBJECT (toplevel), "shortcuts-inhibited");
}
static void
gdk_win32_toplevel_restore_system_shortcuts (GdkToplevel *toplevel)
{
GdkSurface *surface = GDK_SURFACE (toplevel);
GdkSeat *gdk_seat;
if (!surface->shortcuts_inhibited)
return; /* Not inhibited */
gdk_seat = surface->current_shortcuts_inhibited_seat;
gdk_seat_ungrab (gdk_seat);
surface->current_shortcuts_inhibited_seat = NULL;
surface->shortcuts_inhibited = FALSE;
g_object_notify (G_OBJECT (toplevel), "shortcuts-inhibited");
}
static void
gdk_win32_toplevel_state_callback (GdkSurface *surface)
{
if (surface->state & GDK_TOPLEVEL_STATE_FOCUSED)
return;
if (surface->shortcuts_inhibited)
gdk_win32_toplevel_restore_system_shortcuts (GDK_TOPLEVEL (surface));
}
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->inhibit_system_shortcuts = gdk_win32_toplevel_inhibit_system_shortcuts;
iface->restore_system_shortcuts = gdk_win32_toplevel_restore_system_shortcuts;
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;
}
static void
gdk_win32_surface_get_queued_window_rect (GdkSurface *surface,
int scale,
RECT *return_window_rect)
{
RECT window_rect;
_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);
*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)
{
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);
gdk_win32_surface_get_queued_window_rect (surface, scale, &queued_window_rect);
/* Apply queued resizes for non-double-buffered 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)
{
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;
}
void
_gdk_win32_surface_invalidate_egl_framebuffer (GdkSurface *surface)
{
/* If we are using ANGLE, we need to force redraw of the whole Window and its child windows
* as we need to re-acquire the EGL surfaces that we rendered to upload to Cairo explicitly,
* using gdk_window_invalidate_rect (), when we maximize or restore or use aerosnap
*/
#ifdef HAVE_EGL
if (surface->gl_paint_context != NULL && gdk_gl_context_get_use_es (surface->gl_paint_context))
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (surface);
impl->egl_force_redraw_all = TRUE;
}
#endif
}
GdkSurface *
gdk_win32_drag_surface_new (GdkDisplay *display)
{
return g_object_new (GDK_TYPE_WIN32_DRAG_SURFACE,
"display", display,
NULL);
}
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