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d1aa0a74e4
Add a variant of GdkCursor that obtains the texture for the cursor via a callback. The callback gives us the flexibility to handle fractional scales and update the cursor for cursor theme size changes as well as scale changes.
72 lines
2.6 KiB
C
72 lines
2.6 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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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 1997-2000. 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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#pragma once
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#include <gdk/gdkcursor.h>
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G_BEGIN_DECLS
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#define GDK_CURSOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_CURSOR, GdkCursorClass))
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#define GDK_IS_CURSOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_CURSOR))
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#define GDK_CURSOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_CURSOR, GdkCursorClass))
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typedef struct _GdkCursorClass GdkCursorClass;
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struct _GdkCursor
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{
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GObject parent_instance;
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GdkDisplay *display;
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GdkCursor *fallback;
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char *name;
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GdkTexture *texture;
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int hotspot_x;
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int hotspot_y;
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GdkCursorGetTextureCallback callback;
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gpointer data;
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GDestroyNotify destroy;
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};
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struct _GdkCursorClass
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{
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GObjectClass parent_class;
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};
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guint gdk_cursor_hash (gconstpointer pointer);
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gboolean gdk_cursor_equal (gconstpointer a,
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gconstpointer b);
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GdkTexture * gdk_cursor_get_texture_for_size (GdkCursor *cursor,
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int cursor_size,
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double scale,
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int *width,
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int *height,
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int *hotspot_x,
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int *hotspot_y);
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G_END_DECLS
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