gtk2/gdk/win32/gdkdisplay-win32.h
Руслан Ижбулатов 26c24328d5 GDK: Add cursor theme support to W32 backend
Load themed cursors from the same places they are loaded on freedesktop systems,
but use W32 API functions to do so (works for .cur/.ani cursors instead of X
cursors).

Refactor the code for cursor handling. Prefer loading cursors by name.

Do not load actual cursors when loading the theme. Find the files and remember
the arguments/calls for loading them instead. Keeping HCURSOR instance in the
hashmap would result in multiple GdkCursors using the same HCURSOR. Given that
we use DestroyCursor() to off them, this would cause problems (at the very
least - DestroyCursor() would fail).

Store GdkCursor instances in a cache. Update cached cursors when theme changes.

Recognize "system" theme as a special (and default) case. When it is set,
prefer system cursors and fall back to Adwaita cursors and (as a last resort)
built-in X cursors. Otherwise prefer theme cursors and fall back to system and
X cursors.

Force GTK to use "left_ptr" cursor when no cursor is set. Using NULL makes
it use the system default "arrow", which is not the intended behaviour when
a non-system theme is selected.

Ignore cursor size setting and query the OS for the required cursor size, as
Windows (almost) does not allow setting cursors of arbitrary size.

https://bugzilla.gnome.org/show_bug.cgi?id=749287
2015-05-20 08:42:24 +00:00

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1.3 KiB
C

/*
* gdkdisplay-win32.h
*
* Copyright 2014 Chun-wei Fan <fanc999@yahoo.com.tw>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "gdkdisplayprivate.h"
#ifndef __GDK_DISPLAY__WIN32_H__
#define __GDK_DISPLAY__WIN32_H__
struct _GdkWin32Display
{
GdkDisplay display;
Win32CursorTheme *cursor_theme;
gchar *cursor_theme_name;
int cursor_theme_size;
GHashTable *cursor_cache;
/* WGL/OpenGL Items */
guint have_wgl : 1;
guint gl_version;
HDC gl_hdc;
HWND gl_hwnd;
guint hasWglARBCreateContext : 1;
guint hasWglEXTSwapControl : 1;
guint hasWglOMLSyncControl : 1;
};
struct _GdkWin32DisplayClass
{
GdkDisplayClass display_class;
};
#endif /* __GDK_DISPLAY__WIN32_H__ */