initial

1 files changed, 472 insertions, 0 deletions

diff --git a/geyes/geyes.c b/geyes/geyes.c
new file mode 100644
index 00000000..3766744a
--- /dev/null
+++ b/geyes/geyes.c
@@ -0,0 +1,472 @@
+/* -*- Mode: C++; c-basic-offset: 8 -*-
+ * geyes.c - A cheap xeyes ripoff.
+ * Copyright (C) 1999 Dave Camp
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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
+ */
+
+#include <config.h>
+#include <math.h>
+#include <stdlib.h>
+#include <mate-panel-applet.h>
+#include <mate-panel-applet-mateconf.h>
+#include "geyes.h"
+
+#define UPDATE_TIMEOUT 100
+
+static void
+applet_back_change (MatePanelApplet			*a,
+		    MatePanelAppletBackgroundType	type,
+		    GdkColor			*color,
+		    GdkPixmap			*pixmap,
+		    EyesApplet			*eyes_applet) 
+{
+        /* taken from the TrashApplet */
+        GtkRcStyle *rc_style;
+        GtkStyle *style;
+
+        /* reset style */
+        gtk_widget_set_style (GTK_WIDGET (eyes_applet->applet), NULL);
+        rc_style = gtk_rc_style_new ();
+        gtk_widget_modify_style (GTK_WIDGET (eyes_applet->applet), rc_style);
+        g_object_unref (rc_style);
+
+        switch (type) {
+                case PANEL_COLOR_BACKGROUND:
+                        gtk_widget_modify_bg (GTK_WIDGET (eyes_applet->applet),
+                                        GTK_STATE_NORMAL, color);
+                        break;
+
+                case PANEL_PIXMAP_BACKGROUND:
+                        style = gtk_style_copy (gtk_widget_get_style (GTK_WIDGET (
+						eyes_applet->applet)));
+                        if (style->bg_pixmap[GTK_STATE_NORMAL])
+                                g_object_unref
+                                        (style->bg_pixmap[GTK_STATE_NORMAL]);
+                        style->bg_pixmap[GTK_STATE_NORMAL] = g_object_ref
+                                (pixmap);
+                        gtk_widget_set_style (GTK_WIDGET (eyes_applet->applet),
+                                        style);
+                        g_object_unref (style);
+                        break;
+
+                case PANEL_NO_BACKGROUND:
+                default:
+                        break;
+        }
+
+}
+
+/* TODO - Optimize this a bit */
+static void 
+calculate_pupil_xy (EyesApplet *eyes_applet,
+		    gint x, gint y,
+		    gint *pupil_x, gint *pupil_y, GtkWidget* widget)
+{
+        GtkAllocation allocation;
+        double sina;
+        double cosa;
+        double h;
+        double temp;
+ 	 double nx, ny;
+
+	 gfloat xalign, yalign;
+	 gint width, height;
+
+	 gtk_widget_get_allocation (GTK_WIDGET(widget), &allocation);
+	 width = allocation.width;
+	 height = allocation.height;
+	 gtk_misc_get_alignment(GTK_MISC(widget),  &xalign, &yalign);
+
+	 nx = x - MAX(width - eyes_applet->eye_width, 0) * xalign - eyes_applet->eye_width / 2;
+	 ny = y - MAX(height- eyes_applet->eye_height, 0) * yalign - eyes_applet->eye_height / 2;
+  
+	 h = hypot (nx, ny);
+        if (h < 0.5 || abs (h) 
+            < (abs (hypot (eyes_applet->eye_height / 2, eyes_applet->eye_width / 2)) - eyes_applet->wall_thickness - eyes_applet->pupil_height)) {
+                *pupil_x = nx + eyes_applet->eye_width / 2;
+                *pupil_y = ny + eyes_applet->eye_height / 2;
+                return;
+        }
+        
+	 sina = nx / h; 
+	 cosa = ny / h;
+	
+        temp = hypot ((eyes_applet->eye_width / 2) * sina, (eyes_applet->eye_height / 2) * cosa);
+        temp -= hypot ((eyes_applet->pupil_width / 2) * sina, (eyes_applet->pupil_height / 2) * cosa);
+        temp -= hypot ((eyes_applet->wall_thickness / 2) * sina, (eyes_applet->wall_thickness / 2) * cosa);
+
+        *pupil_x = temp * sina + (eyes_applet->eye_width / 2);
+        *pupil_y = temp * cosa + (eyes_applet->eye_height / 2);
+}
+
+static void 
+draw_eye (EyesApplet *eyes_applet,
+	  gint eye_num, 
+          gint pupil_x, 
+          gint pupil_y)
+{
+	GdkPixbuf *pixbuf;
+	GdkRectangle rect, r1, r2;
+
+	pixbuf = gdk_pixbuf_copy (eyes_applet->eye_image);
+	r1.x = pupil_x - eyes_applet->pupil_width / 2;
+	r1.y = pupil_y - eyes_applet->pupil_height / 2;
+	r1.width = eyes_applet->pupil_width;
+	r1.height = eyes_applet->pupil_height;
+	r2.x = 0;
+	r2.y = 0;
+	r2.width = eyes_applet->eye_width;
+	r2.height = eyes_applet->eye_height;
+	gdk_rectangle_intersect (&r1, &r2, &rect);
+	gdk_pixbuf_composite (eyes_applet->pupil_image, pixbuf, 
+					   rect.x,
+					   rect.y,
+					   rect.width,
+				      	   rect.height,
+				      	   pupil_x - eyes_applet->pupil_width / 2,
+					   pupil_y - eyes_applet->pupil_height / 2, 1.0, 1.0,
+				      	   GDK_INTERP_BILINEAR,
+				           255);
+	gtk_image_set_from_pixbuf (GTK_IMAGE (eyes_applet->eyes[eye_num]),
+						  pixbuf);
+	g_object_unref (pixbuf);
+
+}
+
+static gint 
+timer_cb (EyesApplet *eyes_applet)
+{
+        gint x, y;
+        gint pupil_x, pupil_y;
+        gint i;
+
+        for (i = 0; i < eyes_applet->num_eyes; i++) {
+		if (gtk_widget_get_realized (eyes_applet->eyes[i])) {
+			gtk_widget_get_pointer (eyes_applet->eyes[i], 
+						&x, &y);
+			if ((x != eyes_applet->pointer_last_x[i]) || (y != eyes_applet->pointer_last_y[i])) { 
+
+				calculate_pupil_xy (eyes_applet, x, y, &pupil_x, &pupil_y, eyes_applet->eyes[i]);
+				draw_eye (eyes_applet, i, pupil_x, pupil_y);
+	    	        
+			        eyes_applet->pointer_last_x[i] = x;
+			        eyes_applet->pointer_last_y[i] = y;
+			}
+		}
+        }
+        return TRUE;
+}
+
+static void
+about_cb (GtkAction   *action,
+	  EyesApplet  *eyes_applet)
+{
+        static const gchar *authors [] = {
+		"Dave Camp <[email protected]>",
+		NULL
+	};
+
+	const gchar *documenters[] = {
+                "Arjan Scherpenisse <[email protected]>",
+                "Telsa Gwynne <[email protected]>",
+                "Sun MATE Documentation Team <[email protected]>",
+		NULL
+	};
+
+	gtk_show_about_dialog (NULL,
+		"version",	VERSION,
+		"comments",	_("A goofy set of eyes for the MATE "
+				  "panel. They follow your mouse."),
+		"copyright",	"\xC2\xA9 1999 Dave Camp",
+		"authors",	authors,
+		"documenters",	documenters,
+		"translator-credits",	_("translator-credits"),
+		"logo-icon-name",	"mate-eyes-applet",
+		NULL);
+}
+
+static int
+properties_load (EyesApplet *eyes_applet)
+{
+        gchar *theme_path = NULL;
+
+	theme_path = mate_panel_applet_mateconf_get_string (
+		eyes_applet->applet, "theme_path", NULL);
+
+	if (theme_path == NULL)
+		theme_path = g_strdup (GEYES_THEMES_DIR "Default-tiny");
+	
+        if (load_theme (eyes_applet, theme_path) == FALSE) {
+		g_free (theme_path);
+
+		return FALSE;
+	}
+
+        g_free (theme_path);
+	
+	return TRUE;
+}
+
+void
+setup_eyes (EyesApplet *eyes_applet) 
+{
+	int i;
+
+        eyes_applet->hbox = gtk_hbox_new (FALSE, 0);
+        gtk_box_pack_start (GTK_BOX (eyes_applet->vbox), eyes_applet->hbox, TRUE, TRUE, 0);
+
+	eyes_applet->eyes = g_new0 (GtkWidget *, eyes_applet->num_eyes);
+	eyes_applet->pointer_last_x = g_new0 (gint, eyes_applet->num_eyes);
+	eyes_applet->pointer_last_y = g_new0 (gint, eyes_applet->num_eyes);
+
+        for (i = 0; i < eyes_applet->num_eyes; i++) {
+                eyes_applet->eyes[i] = gtk_image_new ();
+                if (eyes_applet->eyes[i] == NULL)
+                        g_error ("Error creating geyes\n");
+               
+		gtk_widget_set_size_request (GTK_WIDGET (eyes_applet->eyes[i]),
+					     eyes_applet->eye_width,
+					     eyes_applet->eye_height);
+ 
+                gtk_widget_show (eyes_applet->eyes[i]);
+                
+		gtk_box_pack_start (GTK_BOX (eyes_applet->hbox), 
+                                    eyes_applet->eyes [i],
+                                    TRUE,
+                                    TRUE,
+                                    0);
+                
+		if ((eyes_applet->num_eyes != 1) && (i == 0)) {
+                	gtk_misc_set_alignment (GTK_MISC (eyes_applet->eyes[i]), 1.0, 0.5);
+		}
+		else if ((eyes_applet->num_eyes != 1) && (i == eyes_applet->num_eyes - 1)) {
+			gtk_misc_set_alignment (GTK_MISC (eyes_applet->eyes[i]), 0.0, 0.5);
+		}
+		else {
+			gtk_misc_set_alignment (GTK_MISC (eyes_applet->eyes[i]), 0.5, 0.5);
+		}
+		
+                gtk_widget_realize (eyes_applet->eyes[i]);
+		
+		eyes_applet->pointer_last_x[i] = G_MAXINT;
+		eyes_applet->pointer_last_y[i] = G_MAXINT;
+		
+		draw_eye (eyes_applet, i,
+			  eyes_applet->eye_width / 2,
+                          eyes_applet->eye_height / 2);
+                
+        }
+        gtk_widget_show (eyes_applet->hbox);
+}
+
+void
+destroy_eyes (EyesApplet *eyes_applet)
+{
+	gtk_widget_destroy (eyes_applet->hbox);
+	eyes_applet->hbox = NULL;
+
+	g_free (eyes_applet->eyes);
+	g_free (eyes_applet->pointer_last_x);
+	g_free (eyes_applet->pointer_last_y);
+}
+
+static EyesApplet *
+create_eyes (MatePanelApplet *applet)
+{
+	EyesApplet *eyes_applet = g_new0 (EyesApplet, 1);
+
+        eyes_applet->applet = applet;
+        eyes_applet->vbox = gtk_vbox_new (FALSE, 0);
+
+	gtk_container_add (GTK_CONTAINER (applet), eyes_applet->vbox);
+
+	return eyes_applet;
+}
+
+static void
+destroy_cb (GtkObject *object, EyesApplet *eyes_applet)
+{
+	g_return_if_fail (eyes_applet);
+
+	g_source_remove (eyes_applet->timeout_id);
+	if (eyes_applet->hbox)
+		destroy_eyes (eyes_applet);
+	eyes_applet->timeout_id = 0;
+	if (eyes_applet->eye_image)
+		g_object_unref (eyes_applet->eye_image);
+	eyes_applet->eye_image = NULL;
+	if (eyes_applet->pupil_image)
+		g_object_unref (eyes_applet->pupil_image);
+	eyes_applet->pupil_image = NULL;
+	if (eyes_applet->theme_dir)
+		g_free (eyes_applet->theme_dir);
+	eyes_applet->theme_dir = NULL;
+	if (eyes_applet->theme_name)
+		g_free (eyes_applet->theme_name);
+	eyes_applet->theme_name = NULL;
+	if (eyes_applet->eye_filename)
+		g_free (eyes_applet->eye_filename);
+	eyes_applet->eye_filename = NULL;
+	if (eyes_applet->pupil_filename)
+		g_free (eyes_applet->pupil_filename);
+	eyes_applet->pupil_filename = NULL;
+	
+	if (eyes_applet->prop_box.pbox)
+	  	gtk_widget_destroy (eyes_applet->prop_box.pbox);
+
+	g_free (eyes_applet);
+}
+
+static void
+help_cb (GtkAction  *action,
+	 EyesApplet *eyes_applet)
+{
+	GError *error = NULL;
+
+	gtk_show_uri (gtk_widget_get_screen (GTK_WIDGET (eyes_applet->applet)),
+		"ghelp:geyes",
+		gtk_get_current_event_time (),
+		&error);
+
+	if (error) {
+		GtkWidget *dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, 
+							    _("There was an error displaying help: %s"), error->message);
+		g_signal_connect (G_OBJECT (dialog), "response", G_CALLBACK (gtk_widget_destroy), NULL);
+		gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
+		gtk_window_set_screen (GTK_WINDOW (dialog), gtk_widget_get_screen (GTK_WIDGET (eyes_applet->applet)));
+		gtk_widget_show (dialog);
+		g_error_free (error);
+		error = NULL;
+	}
+}
+
+
+static const GtkActionEntry geyes_applet_menu_actions [] = {
+	{ "Props", GTK_STOCK_PROPERTIES, N_("_Preferences"),
+	  NULL, NULL,
+	  G_CALLBACK (properties_cb) },
+	{ "Help", GTK_STOCK_HELP, N_("_Help"),
+	  NULL, NULL,
+	  G_CALLBACK (help_cb) },
+	{ "About", GTK_STOCK_ABOUT, N_("_About"),
+	  NULL, NULL,
+	  G_CALLBACK (about_cb) }
+};
+
+static void
+set_atk_name_description (GtkWidget *widget, const gchar *name,
+    const gchar *description)
+{
+	AtkObject *aobj;
+   
+	aobj = gtk_widget_get_accessible (widget);
+	/* Check if gail is loaded */
+	if (GTK_IS_ACCESSIBLE (aobj) == FALSE)
+		return;
+
+	atk_object_set_name (aobj, name);
+	atk_object_set_description (aobj, description);
+}
+
+static gboolean
+geyes_applet_fill (MatePanelApplet *applet)
+{
+	EyesApplet *eyes_applet;
+	GtkActionGroup *action_group;
+	gchar *ui_path;
+
+	g_set_application_name (_("Eyes"));
+	
+	gtk_window_set_default_icon_name ("mate-eyes-applet");
+	mate_panel_applet_set_flags (applet, MATE_PANEL_APPLET_EXPAND_MINOR);
+	
+        eyes_applet = create_eyes (applet);
+
+	mate_panel_applet_add_preferences (applet, "/schemas/apps/geyes/prefs", NULL);
+
+        eyes_applet->timeout_id = g_timeout_add (
+		UPDATE_TIMEOUT, (GtkFunction) timer_cb, eyes_applet);
+
+	action_group = gtk_action_group_new ("Geyes Applet Actions");
+	gtk_action_group_set_translation_domain (action_group, GETTEXT_PACKAGE);
+	gtk_action_group_add_actions (action_group,
+				      geyes_applet_menu_actions,
+				      G_N_ELEMENTS (geyes_applet_menu_actions),
+				      eyes_applet);
+	ui_path = g_build_filename (GEYES_MENU_UI_DIR, "geyes-applet-menu.xml", NULL);
+	mate_panel_applet_setup_menu_from_file (eyes_applet->applet,
+					   ui_path, action_group);
+	g_free (ui_path);
+
+	if (mate_panel_applet_get_locked_down (eyes_applet->applet)) {
+		GtkAction *action;
+
+		action = gtk_action_group_get_action (action_group, "Props");
+		gtk_action_set_visible (action, FALSE);
+	}
+	g_object_unref (action_group);
+
+	gtk_widget_set_tooltip_text (GTK_WIDGET (eyes_applet->applet), _("Eyes"));
+
+	set_atk_name_description (GTK_WIDGET (eyes_applet->applet), _("Eyes"), 
+			_("The eyes look in the direction of the mouse pointer"));
+
+	g_signal_connect (eyes_applet->applet,
+			  "change_background",
+			  G_CALLBACK (applet_back_change),
+			  eyes_applet);
+	g_signal_connect (eyes_applet->vbox,
+			  "destroy",
+			  G_CALLBACK (destroy_cb),
+			  eyes_applet);
+
+	gtk_widget_show_all (GTK_WIDGET (eyes_applet->applet));
+
+	/* setup here and not in create eyes so the destroy signal is set so 
+	 * that when there is an error within loading the theme
+	 * we can emit this signal */
+        if (properties_load (eyes_applet) == FALSE)
+		return FALSE;
+
+	setup_eyes (eyes_applet);
+
+	return TRUE;
+}
+
+static gboolean
+geyes_applet_factory (MatePanelApplet *applet,
+		      const gchar *iid,
+		      gpointer     data)
+{
+	gboolean retval = FALSE;
+
+	theme_dirs_create ();
+
+	if (!strcmp (iid, "GeyesApplet"))
+		retval = geyes_applet_fill (applet); 
+   
+	if (retval == FALSE) {
+		exit (-1);
+	}
+
+	return retval;
+}
+
+MATE_PANEL_APPLET_OUT_PROCESS_FACTORY ("GeyesAppletFactory",
+				  PANEL_TYPE_APPLET,
+				  "geyes",
+				  geyes_applet_factory,
+				  NULL)