e03946bd28
Normally works only on CSD windows, non-CSD windows continue to use WM modal loop for drag-resizing and drag-moving. However, if it is activated on non-CSD windows, it does work. Has the advantage of being completely immune to AeroSnap. AeroSnap only worked partially on CSD windows, with the only part that worked being "don't let users drag window titlebar outside of the desktop". Now AeroSnap doesn't work on windows moved by this code at all, which is good, since they currently don't work well with it due to the way shadows are drawn. It's possible to also re-implement AeroSnap (or something similar), but that is a story for another commit. This code was originally intended to fix the problem of window size and window contents desynchronization, but failed to achieve that result in the end. Nevertheless, it serves as a foundation for other changes to the way window resizing works. https://bugzilla.gnome.org/show_bug.cgi?id=761629
155 lines
4.5 KiB
C
155 lines
4.5 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __GDK_WINDOW_WIN32_H__
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#define __GDK_WINDOW_WIN32_H__
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#include "gdk/win32/gdkprivate-win32.h"
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#include "gdk/gdkwindowimpl.h"
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#include "gdk/gdkcursor.h"
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#include <windows.h>
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G_BEGIN_DECLS
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/* Window implementation for Win32
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*/
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typedef struct _GdkWindowImplWin32 GdkWindowImplWin32;
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typedef struct _GdkWindowImplWin32Class GdkWindowImplWin32Class;
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#define GDK_TYPE_WINDOW_IMPL_WIN32 (_gdk_window_impl_win32_get_type ())
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#define GDK_WINDOW_IMPL_WIN32(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WINDOW_IMPL_WIN32, GdkWindowImplWin32))
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#define GDK_WINDOW_IMPL_WIN32_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_WINDOW_IMPL_WIN32, GdkWindowImplWin32Class))
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#define GDK_IS_WINDOW_IMPL_WIN32(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_WINDOW_IMPL_WIN32))
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#define GDK_IS_WINDOW_IMPL_WIN32_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_WINDOW_IMPL_WIN32))
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#define GDK_WINDOW_IMPL_WIN32_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_WINDOW_IMPL_WIN32, GdkWindowImplWin32Class))
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enum _GdkW32WindowDragOp
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{
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GDK_WIN32_DRAGOP_NONE = 0,
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GDK_WIN32_DRAGOP_RESIZE,
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GDK_WIN32_DRAGOP_MOVE,
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GDK_WIN32_DRAGOP_COUNT
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};
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typedef enum _GdkW32WindowDragOp GdkW32WindowDragOp;
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struct _GdkW32DragMoveResizeContext
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{
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/* The kind of drag-operation going on. */
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GdkW32WindowDragOp op;
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/* The edge that was grabbed for resizing. Not used for moving. */
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GdkWindowEdge edge;
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/* Not used */
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GdkDevice *device;
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/* Not used */
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gint button;
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/* Initial cursor position when the operation began.
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* Current cursor position is subtracted from it to find how far
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* to move window border(s).
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*/
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gint start_root_x;
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gint start_root_y;
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/* Initial window rectangle (position and size).
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* The window is resized/moved relative to this (see start_root_*).
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*/
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RECT start_rect;
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/* Not used */
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guint32 timestamp;
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/* TRUE if during the next redraw we should call SetWindowPos() to push
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* the window size and poistion to the native window.
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*/
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gboolean native_move_resize_pending;
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};
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typedef struct _GdkW32DragMoveResizeContext GdkW32DragMoveResizeContext;
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struct _GdkWindowImplWin32
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{
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GdkWindowImpl parent_instance;
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GdkWindow *wrapper;
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HANDLE handle;
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gint8 toplevel_window_type;
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GdkCursor *cursor;
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HICON hicon_big;
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HICON hicon_small;
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/* Window size hints */
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gint hint_flags;
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GdkGeometry hints;
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GdkEventMask native_event_mask;
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GdkWindowTypeHint type_hint;
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GdkWindow *transient_owner;
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GSList *transient_children;
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gint num_transients;
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gboolean changing_state;
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gint initial_x;
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gint initial_y;
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guint no_bg : 1;
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guint inhibit_configure : 1;
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guint override_redirect : 1;
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cairo_surface_t *cairo_surface;
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HDC hdc;
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int hdc_count;
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HBITMAP saved_dc_bitmap; /* Original bitmap for dc */
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GdkW32DragMoveResizeContext drag_move_resize_context;
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};
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struct _GdkWindowImplWin32Class
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{
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GdkWindowImplClass parent_class;
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};
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GType _gdk_window_impl_win32_get_type (void);
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void _gdk_win32_window_tmp_unset_bg (GdkWindow *window,
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gboolean recurse);
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void _gdk_win32_window_tmp_reset_bg (GdkWindow *window,
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gboolean recurse);
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void _gdk_win32_window_tmp_unset_parent_bg (GdkWindow *window);
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void _gdk_win32_window_tmp_reset_parent_bg (GdkWindow *window);
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G_END_DECLS
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#endif /* __GDK_WINDOW_WIN32_H__ */
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