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-rw-r--r--geyes/geyes.c472
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diff --git a/geyes/geyes.c b/geyes/geyes.c
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+/* -*- 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)
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-10 20:32:05 +0000