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gtk/gdk/win32/gdksurface-win32.c
Luca Bacci f4bd883003 GdkWin32: Try to call _gdk_surface_update_size() only when the size actually changed 
Otherwise we adapt Vulkan and OpenGL swap chains a lot and we effectively
disable incremental rendering.

Note that the fix is not complete.
2024-08-26 17:05:19 +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 (WNDCLASSEXW);
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)
{
wchar_t 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_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_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 (!GetMonitorInfo (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)
{
GdkWin32Surface *impl = GDK_WIN32_SURFACE (window);
/* Ensure that maximized window size is corrected later on */
if (cmd_show == SW_MAXIMIZE)
impl->maximizing = TRUE;
return ShowWindow (GDK_SURFACE_HWND (window), 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;
}
static void
gdk_win32_surface_set_icon_list (GdkSurface *surface,
GList *textures)
{
GdkTexture *texture, *big_texture, *small_texture;
gint big_diff, small_diff;
gint big_w, big_h, small_w, small_h;
gint w, h;
gint dw, dh, diff;
HICON small_hicon, big_hicon;
GdkWin32Surface *impl;
if (GDK_SURFACE_DESTROYED (surface))
return;
impl = GDK_WIN32_SURFACE (surface);
/* ideal sizes for small and large icons */
big_w = GetSystemMetrics (SM_CXICON);
big_h = GetSystemMetrics (SM_CYICON);
small_w = GetSystemMetrics (SM_CXSMICON);
small_h = GetSystemMetrics (SM_CYSMICON);
/* find closest sized icons in the list */
big_texture = NULL;
small_texture = NULL;
big_diff = 0;
small_diff = 0;
while (textures)
{
texture = (GdkTexture*) textures->data;
w = gdk_texture_get_width (texture);
h = gdk_texture_get_height (texture);
dw = ABS (w - big_w);
dh = ABS (h - big_h);
diff = dw*dw + dh*dh;
if (big_texture == NULL || diff < big_diff)
{
big_texture = texture;
big_diff = diff;
}
dw = ABS (w - small_w);
dh = ABS (h - small_h);
diff = dw*dw + dh*dh;
if (small_texture == NULL || diff < small_diff)
{
small_texture = texture;
small_diff = diff;
}
textures = textures->next;
}
if (big_texture == NULL || small_texture == NULL)
return;
/* Create the icons */
big_hicon = big_texture ? _gdk_win32_create_hicon_for_texture (big_texture, TRUE, 0, 0) : NULL;
small_hicon = small_texture ? _gdk_win32_create_hicon_for_texture (small_texture, TRUE, 0, 0) : NULL;
/* Set the icons */
SendMessage (GDK_SURFACE_HWND (surface), WM_SETICON, ICON_BIG,
(LPARAM)big_hicon);
SendMessage (GDK_SURFACE_HWND (surface), WM_SETICON, ICON_SMALL,
(LPARAM)small_hicon);
/* Store the icons, destroying any previous icons */
if (impl->hicon_big)
GDI_CALL (DestroyIcon, (impl->hicon_big));
impl->hicon_big = big_hicon;
if (impl->hicon_small)
GDI_CALL (DestroyIcon, (impl->hicon_small));
impl->hicon_small = small_hicon;
}
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)
{
bool size_changed;
if (GDK_IS_TOPLEVEL (surface) && impl->force_recompute_size)
{
size_changed = width != surface->width ||
height != surface->height;
surface->width = width;
surface->height = height;
gdk_win32_surface_resize (surface, width, height);
impl->force_recompute_size = FALSE;
}
else
{
size_changed = width != impl->next_layout.configured_width ||
height != impl->next_layout.configured_height;
surface->width = impl->next_layout.configured_width;
surface->height = impl->next_layout.configured_height;
}
if (size_changed)
_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)
_gdk_push_modal_window (surface);
g_object_notify_by_pspec (G_OBJECT (surface), pspec);
break;
case LAST_PROP + GDK_TOPLEVEL_PROP_ICON_LIST:
gdk_win32_surface_set_icon_list (surface, g_value_get_pointer (value));
g_object_notify_by_pspec (G_OBJECT (surface), pspec);
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"));
/*
* Workaround situations in the current Win32 surface resize code that may have notified GDK
* too late for resizes, which manifests on nVidia drivers (and AMD drivers in mailbox
* presentation mode) running under Vulkan when one interactively enlarges the surface (HWND).
*
* See MR !7562 for more details
*/
_gdk_surface_update_size (surface);
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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