forked from AuroraMiddleware/gtk
418 lines
11 KiB
C
418 lines
11 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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* Copyright (C) 1998-2002 Tor Lillqvist
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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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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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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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "gdkpixmap.h"
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#include "gdkdisplay.h"
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#include "gdkscreen.h"
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#include "gdkprivate-win32.h"
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static void gdk_pixmap_impl_win32_get_size (GdkDrawable *drawable,
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gint *width,
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gint *height);
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static void gdk_pixmap_impl_win32_init (GdkPixmapImplWin32 *pixmap);
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static void gdk_pixmap_impl_win32_class_init (GdkPixmapImplWin32Class *klass);
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static void gdk_pixmap_impl_win32_finalize (GObject *object);
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static gpointer parent_class = NULL;
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GType
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_gdk_pixmap_impl_win32_get_type (void)
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{
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static GType object_type = 0;
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if (!object_type)
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{
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const GTypeInfo object_info =
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{
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sizeof (GdkPixmapImplWin32Class),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gdk_pixmap_impl_win32_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GdkPixmapImplWin32),
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0, /* n_preallocs */
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(GInstanceInitFunc) gdk_pixmap_impl_win32_init,
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};
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object_type = g_type_register_static (GDK_TYPE_DRAWABLE_IMPL_WIN32,
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"GdkPixmapImplWin32",
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&object_info, 0);
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}
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return object_type;
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}
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GType
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_gdk_pixmap_impl_get_type (void)
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{
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return _gdk_pixmap_impl_win32_get_type ();
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}
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static void
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gdk_pixmap_impl_win32_init (GdkPixmapImplWin32 *impl)
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{
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impl->width = 1;
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impl->height = 1;
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}
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static void
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gdk_pixmap_impl_win32_class_init (GdkPixmapImplWin32Class *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->finalize = gdk_pixmap_impl_win32_finalize;
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drawable_class->get_size = gdk_pixmap_impl_win32_get_size;
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}
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static void
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gdk_pixmap_impl_win32_finalize (GObject *object)
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{
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GdkPixmapImplWin32 *impl = GDK_PIXMAP_IMPL_WIN32 (object);
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GdkPixmap *wrapper = GDK_PIXMAP (GDK_DRAWABLE_IMPL_WIN32 (impl)->wrapper);
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GDK_NOTE (PIXMAP, g_print ("gdk_pixmap_impl_win32_finalize: %p\n",
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GDK_PIXMAP_HBITMAP (wrapper)));
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_gdk_win32_drawable_finish (GDK_DRAWABLE (object));
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GDI_CALL (DeleteObject, (GDK_PIXMAP_HBITMAP (wrapper)));
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gdk_win32_handle_table_remove (GDK_PIXMAP_HBITMAP (wrapper));
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gdk_pixmap_impl_win32_get_size (GdkDrawable *drawable,
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gint *width,
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gint *height)
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{
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if (width)
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*width = GDK_PIXMAP_IMPL_WIN32 (drawable)->width;
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if (height)
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*height = GDK_PIXMAP_IMPL_WIN32 (drawable)->height;
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}
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static int
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bits_for_depth (gint depth)
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{
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switch (depth)
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{
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case 1:
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return 1;
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case 2:
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case 3:
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case 4:
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return 4;
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case 5:
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case 6:
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case 7:
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case 8:
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return 8;
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case 15:
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case 16:
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return 16;
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case 24:
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case 32:
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return 32;
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}
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g_assert_not_reached ();
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return 0;
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}
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GdkPixmap*
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_gdk_pixmap_new (GdkDrawable *drawable,
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gint width,
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gint height,
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gint depth)
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{
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struct {
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BITMAPINFOHEADER bmiHeader;
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union {
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WORD bmiIndices[256];
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DWORD bmiMasks[3];
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RGBQUAD bmiColors[256];
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} u;
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} bmi;
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UINT iUsage;
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HDC hdc;
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HWND hwnd;
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HPALETTE holdpal = NULL;
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HBITMAP hbitmap;
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GdkPixmap *pixmap;
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GdkDrawableImplWin32 *drawable_impl;
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GdkPixmapImplWin32 *pixmap_impl;
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GdkColormap *cmap;
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guchar *bits;
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gint i;
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gint window_depth;
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g_return_val_if_fail (drawable == NULL || GDK_IS_DRAWABLE (drawable), NULL);
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g_return_val_if_fail ((drawable != NULL) || (depth != -1), NULL);
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g_return_val_if_fail ((width != 0) && (height != 0), NULL);
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if (!drawable)
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drawable = _gdk_root;
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if (GDK_IS_WINDOW (drawable) && GDK_WINDOW_DESTROYED (drawable))
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return NULL;
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window_depth = gdk_drawable_get_depth (GDK_DRAWABLE (drawable));
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if (depth == -1)
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depth = window_depth;
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GDK_NOTE (PIXMAP, g_print ("gdk_pixmap_new: %dx%dx%d drawable=%p\n",
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width, height, depth, drawable));
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pixmap = g_object_new (gdk_pixmap_get_type (), NULL);
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drawable_impl = GDK_DRAWABLE_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl);
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pixmap_impl = GDK_PIXMAP_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl);
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drawable_impl->wrapper = GDK_DRAWABLE (pixmap);
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pixmap_impl->is_foreign = FALSE;
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pixmap_impl->width = width;
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pixmap_impl->height = height;
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GDK_PIXMAP_OBJECT (pixmap)->depth = depth;
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if (depth == window_depth)
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{
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cmap = gdk_drawable_get_colormap (drawable);
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if (cmap)
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gdk_drawable_set_colormap (pixmap, cmap);
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}
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if (GDK_IS_WINDOW (drawable))
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hwnd = GDK_WINDOW_HWND (drawable);
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else
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hwnd = GetDesktopWindow ();
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if ((hdc = GetDC (hwnd)) == NULL)
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{
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WIN32_GDI_FAILED ("GetDC");
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g_object_unref ((GObject *) pixmap);
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return NULL;
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}
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bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
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bmi.bmiHeader.biWidth = width;
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bmi.bmiHeader.biHeight = -height;
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bmi.bmiHeader.biPlanes = 1;
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switch (depth)
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{
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case 1:
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case 24:
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case 32:
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bmi.bmiHeader.biBitCount = bits_for_depth (depth);
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break;
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case 4:
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bmi.bmiHeader.biBitCount = 4;
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break;
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case 5:
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case 6:
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case 7:
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case 8:
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bmi.bmiHeader.biBitCount = 8;
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break;
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case 15:
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case 16:
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bmi.bmiHeader.biBitCount = 16;
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break;
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default:
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g_warning ("gdk_win32_pixmap_new: depth = %d", depth);
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g_assert_not_reached ();
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}
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if (bmi.bmiHeader.biBitCount == 16)
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bmi.bmiHeader.biCompression = BI_BITFIELDS;
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else
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bmi.bmiHeader.biCompression = BI_RGB;
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bmi.bmiHeader.biSizeImage = 0;
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bmi.bmiHeader.biXPelsPerMeter =
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bmi.bmiHeader.biYPelsPerMeter = 0;
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bmi.bmiHeader.biClrUsed = 0;
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bmi.bmiHeader.biClrImportant = 0;
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iUsage = DIB_RGB_COLORS;
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if (depth == 1)
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{
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bmi.u.bmiColors[0].rgbBlue =
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bmi.u.bmiColors[0].rgbGreen =
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bmi.u.bmiColors[0].rgbRed = 0x00;
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bmi.u.bmiColors[0].rgbReserved = 0x00;
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bmi.u.bmiColors[1].rgbBlue =
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bmi.u.bmiColors[1].rgbGreen =
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bmi.u.bmiColors[1].rgbRed = 0xFF;
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bmi.u.bmiColors[1].rgbReserved = 0x00;
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}
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else
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{
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if (depth <= 8 && drawable_impl->colormap != NULL)
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{
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GdkColormapPrivateWin32 *cmapp =
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GDK_WIN32_COLORMAP_DATA (drawable_impl->colormap);
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gint k;
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if ((holdpal = SelectPalette (hdc, cmapp->hpal, FALSE)) == NULL)
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WIN32_GDI_FAILED ("SelectPalette");
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else if ((k = RealizePalette (hdc)) == GDI_ERROR)
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WIN32_GDI_FAILED ("RealizePalette");
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else if (k > 0)
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GDK_NOTE (PIXMAP_OR_COLORMAP, g_print ("_gdk_win32_pixmap_new: realized %p: %d colors\n",
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cmapp->hpal, k));
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iUsage = DIB_PAL_COLORS;
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for (i = 0; i < 256; i++)
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bmi.u.bmiIndices[i] = i;
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}
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else if (bmi.bmiHeader.biBitCount == 16)
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{
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GdkVisual *visual = gdk_visual_get_system ();
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bmi.u.bmiMasks[0] = visual->red_mask;
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bmi.u.bmiMasks[1] = visual->green_mask;
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bmi.u.bmiMasks[2] = visual->blue_mask;
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}
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}
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hbitmap = CreateDIBSection (hdc, (BITMAPINFO *) &bmi,
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iUsage, (PVOID *) &bits, NULL, 0);
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if (holdpal != NULL)
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SelectPalette (hdc, holdpal, FALSE);
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GDI_CALL (ReleaseDC, (hwnd, hdc));
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GDK_NOTE (PIXMAP, g_print ("... =%p bits=%p pixmap=%p\n", hbitmap, bits, pixmap));
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if (hbitmap == NULL)
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{
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WIN32_GDI_FAILED ("CreateDIBSection");
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g_object_unref ((GObject *) pixmap);
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return NULL;
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}
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drawable_impl->handle = hbitmap;
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pixmap_impl->bits = bits;
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gdk_win32_handle_table_insert (&GDK_PIXMAP_HBITMAP (pixmap), pixmap);
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return pixmap;
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}
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GdkPixmap *
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gdk_pixmap_foreign_new_for_display (GdkDisplay *display,
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GdkNativeWindow anid)
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{
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g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
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g_return_val_if_fail (display == _gdk_display, NULL);
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return gdk_pixmap_foreign_new (anid);
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}
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GdkPixmap *
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gdk_pixmap_foreign_new_for_screen (GdkScreen *screen,
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GdkNativeWindow anid,
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gint width,
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gint height,
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gint depth)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
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return gdk_pixmap_foreign_new (anid);
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}
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GdkPixmap*
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gdk_pixmap_foreign_new (GdkNativeWindow anid)
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{
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GdkPixmap *pixmap;
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GdkDrawableImplWin32 *draw_impl;
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GdkPixmapImplWin32 *pix_impl;
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HBITMAP hbitmap;
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SIZE size;
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/* Check to make sure we were passed a HBITMAP */
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g_return_val_if_fail (GetObjectType ((HGDIOBJ) anid) == OBJ_BITMAP, NULL);
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hbitmap = (HBITMAP) anid;
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/* Get information about the bitmap to fill in the structure for the
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* GDK window.
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*/
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GetBitmapDimensionEx (hbitmap, &size);
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/* Allocate a new GDK pixmap */
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pixmap = g_object_new (gdk_pixmap_get_type (), NULL);
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draw_impl = GDK_DRAWABLE_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl);
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pix_impl = GDK_PIXMAP_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl);
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draw_impl->wrapper = GDK_DRAWABLE (pixmap);
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draw_impl->handle = hbitmap;
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draw_impl->colormap = NULL;
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pix_impl->width = size.cx;
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pix_impl->height = size.cy;
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pix_impl->bits = NULL;
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gdk_win32_handle_table_insert (&GDK_PIXMAP_HBITMAP (pixmap), pixmap);
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return pixmap;
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}
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GdkPixmap*
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gdk_pixmap_lookup (GdkNativeWindow anid)
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{
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return (GdkPixmap*) gdk_win32_handle_table_lookup (anid);
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}
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GdkPixmap*
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gdk_pixmap_lookup_for_display (GdkDisplay *display, GdkNativeWindow anid)
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{
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g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
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g_return_val_if_fail (display == _gdk_display, NULL);
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return gdk_pixmap_lookup (anid);
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}
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