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118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/*
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* Copyright (C) 2007, Red Hat, Inc.
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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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#include <gdk/gdkx.h>
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#include <gtk/gtkwindow.h>
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#include <X11/extensions/XShm.h>
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#include "sugar-preview.h"
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static void sugar_preview_class_init (SugarPreviewClass *menu_class);
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static void sugar_preview_init (SugarPreview *menu);
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G_DEFINE_TYPE(SugarPreview, sugar_preview, G_TYPE_OBJECT)
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void
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sugar_preview_set_size(SugarPreview *preview, int width, int height)
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{
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preview->width = width;
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preview->height = height;
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}
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GdkPixbuf *
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sugar_preview_get_pixbuf(SugarPreview *preview)
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{
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if (preview->pixbuf != NULL) {
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return preview->pixbuf;
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}
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if (preview->image == NULL) {
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return NULL;
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}
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preview->pixbuf = gdk_pixbuf_get_from_image(NULL, preview->image, NULL,
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0, 0, 0, 0,
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preview->image->width,
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preview->image->height);
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g_object_unref(G_OBJECT(preview->image));
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preview->image = NULL;
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return preview->pixbuf;
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}
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void
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sugar_preview_clear(SugarPreview *preview)
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{
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if (preview->image != NULL) {
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g_object_unref(G_OBJECT(preview->image));
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preview->image = NULL;
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}
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if (preview->pixbuf != NULL) {
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g_object_unref(G_OBJECT(preview->pixbuf));
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preview->pixbuf = NULL;
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}
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}
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void
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sugar_preview_take_screenshot(SugarPreview *preview, GdkDrawable *drawable)
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{
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GdkScreen *screen;
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GdkVisual *visual;
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GdkColormap *colormap;
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gint width, height;
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sugar_preview_clear(preview);
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gdk_drawable_get_size(drawable, &width, &height);
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screen = gdk_drawable_get_screen(drawable);
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visual = gdk_drawable_get_visual(drawable);
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colormap = gdk_drawable_get_colormap(drawable);
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preview->image = gdk_image_new(GDK_IMAGE_SHARED, visual, width, height);
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gdk_image_set_colormap(preview->image, colormap);
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XShmGetImage(GDK_SCREEN_XDISPLAY(screen),
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GDK_DRAWABLE_XID(drawable),
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gdk_x11_image_get_ximage(preview->image),
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0, 0, AllPlanes);
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}
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static void
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sugar_preview_dispose(GObject *object)
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{
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SugarPreview *preview = SUGAR_PREVIEW(object);
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sugar_preview_clear(preview);
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}
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static void
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sugar_preview_class_init(SugarPreviewClass *preview_class)
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{
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GObjectClass *g_object_class = G_OBJECT_CLASS (preview_class);
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g_object_class->dispose = sugar_preview_dispose;
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}
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static void
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sugar_preview_init(SugarPreview *preview)
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{
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preview->image = NULL;
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preview->pixbuf = NULL;
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}
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