first commit

1 files changed, 214 insertions, 0 deletions

diff --git a/savers/gs-theme-window.c b/savers/gs-theme-window.c
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+/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 8; tab-width: 8 -*-
+ *
+ * gs-theme-window.c - special toplevel for screensavers
+ *
+ * Copyright (C) 2005 Ray Strode <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2, or (at your option) any later version.
+ *
+ * This program 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 Lesser General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Originally written by: Ray Strode <[email protected]>
+ */
+
+#include "config.h"
+
+#include <errno.h>
+#include <stdlib.h>
+
+#include <glib.h>
+#include <glib-object.h>
+#include <glib/gi18n.h>
+
+#include <gdk/gdkx.h>
+#include <gtk/gtk.h>
+
+#include "gs-theme-window.h"
+
+static void gs_theme_window_finalize     (GObject *object);
+static void gs_theme_window_real_realize (GtkWidget *widget);
+
+static GObjectClass   *parent_class = NULL;
+
+G_DEFINE_TYPE (GSThemeWindow, gs_theme_window, GTK_TYPE_WINDOW)
+
+#define MIN_SIZE 10
+
+static void
+gs_theme_window_class_init (GSThemeWindowClass *klass)
+{
+	GObjectClass   *object_class;
+	GtkWidgetClass *widget_class;
+
+	object_class = G_OBJECT_CLASS (klass);
+	widget_class = GTK_WIDGET_CLASS (klass);
+
+	parent_class = g_type_class_peek_parent (klass);
+
+	object_class->finalize = gs_theme_window_finalize;
+
+	widget_class->realize = gs_theme_window_real_realize;
+}
+
+static void
+force_no_pixmap_background (GtkWidget *widget)
+{
+	static gboolean first_time = TRUE;
+
+	if (first_time)
+	{
+		gtk_rc_parse_string ("\n"
+		                     "   style \"gs-theme-engine-style\"\n"
+		                     "   {\n"
+		                     "      bg_pixmap[NORMAL] = \"<none>\"\n"
+		                     "      bg_pixmap[ACTIVE] = \"<none>\"\n"
+		                     "      bg_pixmap[PRELIGHT] = \"<none>\"\n"
+		                     "      bg_pixmap[SELECTED] = \"<none>\"\n"
+		                     "      bg_pixmap[INSENSITIVE] = \"<none>\"\n"
+		                     "      bg[NORMAL] = \"#000000\"\n"
+		                     "      bg[ACTIVE] = \"#000000\"\n"
+		                     "      bg[PRELIGHT] = \"#000000\"\n"
+		                     "      bg[SELECTED] = \"#000000\"\n"
+		                     "      bg[INSENSITIVE] = \"#000000\"\n"
+		                     "   }\n"
+		                     "   widget \"gs-window*\" style : highest \"gs-theme-engine-style\"\n"
+		                     "\n");
+		first_time = FALSE;
+	}
+
+	gtk_widget_set_name (widget, "gs-window");
+}
+
+static void
+gs_theme_window_init (GSThemeWindow *window)
+{
+	force_no_pixmap_background (GTK_WIDGET (window));
+}
+
+static void
+gs_theme_window_finalize (GObject *object)
+{
+	GSThemeWindow *window;
+	GObjectClass  *parent_class;
+
+	window = GS_THEME_WINDOW (object);
+
+	parent_class = G_OBJECT_CLASS (gs_theme_window_parent_class);
+
+	if (parent_class->finalize != NULL)
+		parent_class->finalize (object);
+}
+
+static void
+gs_theme_window_real_realize (GtkWidget *widget)
+{
+	GdkWindow     *window;
+	Window         remote_xwindow;
+	GtkRequisition requisition;
+	GtkAllocation  allocation;
+	const char    *preview_xid;
+	int            x;
+	int            y;
+	int            width;
+	int            height;
+	int            event_mask;
+
+	event_mask = 0;
+	window = NULL;
+	preview_xid = g_getenv ("XSCREENSAVER_WINDOW");
+
+	if (preview_xid != NULL)
+	{
+		char *end;
+
+		remote_xwindow = (Window) strtoul (preview_xid, &end, 0);
+
+		if ((remote_xwindow != 0) && (end != NULL) &&
+		        ((*end == ' ') || (*end == '\0')) &&
+		        ((remote_xwindow < G_MAXULONG) || (errno != ERANGE)))
+		{
+			window = gdk_window_foreign_new (remote_xwindow);
+
+			if (window != NULL)
+			{
+				/* This is a kludge; we need to set the same
+				 * flags gs-window-x11.c does, to ensure they
+				 * don't get unset by gtk_window_map() later.
+				 */
+				gtk_window_set_decorated (GTK_WINDOW (widget), FALSE);
+
+				gtk_window_set_skip_taskbar_hint (GTK_WINDOW (widget), TRUE);
+				gtk_window_set_skip_pager_hint (GTK_WINDOW (widget), TRUE);
+
+				gtk_window_set_keep_above (GTK_WINDOW (widget), TRUE);
+
+				gtk_window_fullscreen (GTK_WINDOW (widget));
+
+				event_mask = GDK_EXPOSURE_MASK | GDK_STRUCTURE_MASK;
+				gtk_widget_set_events (widget, gtk_widget_get_events (widget) | event_mask);
+			}
+		}
+	}
+
+	if (window == NULL)
+	{
+		GtkWidgetClass *parent_class;
+
+		parent_class = GTK_WIDGET_CLASS (gs_theme_window_parent_class);
+
+		if (parent_class->realize != NULL)
+			parent_class->realize (widget);
+
+		return;
+	}
+
+	gtk_style_set_background (widget->style,
+	                          window,
+	                          GTK_STATE_NORMAL);
+	gdk_window_set_decorations (window, (GdkWMDecoration) 0);
+	gdk_window_set_events (window, gdk_window_get_events (window) | event_mask);
+
+	widget->window = window;
+	gdk_window_set_user_data (window, widget);
+	GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+
+	gdk_window_get_geometry (window, &x, &y, &width, &height, NULL);
+
+	if (width < MIN_SIZE || height < MIN_SIZE)
+	{
+		g_critical ("This window is way too small to use");
+		exit (1);
+	}
+
+	gtk_widget_size_request (widget, &requisition);
+	allocation.x = x;
+	allocation.y = y;
+	allocation.width = width;
+	allocation.height = height;
+	gtk_widget_size_allocate (widget, &allocation);
+	gtk_window_resize (GTK_WINDOW (widget), width, height);
+}
+
+GtkWidget *
+gs_theme_window_new (void)
+{
+	GSThemeWindow *window;
+
+	window = g_object_new (GS_TYPE_THEME_WINDOW,
+	                       "type", GTK_WINDOW_TOPLEVEL,
+	                       NULL);
+
+	return GTK_WIDGET (window);
+}