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authorAlessandro Ghedini <al3xbio@gmail.com>2011-10-19 10:56:04 +0200
committerAlessandro Ghedini <al3xbio@gmail.com>2011-10-19 10:56:04 +0200
commit6451a495637c6e3047a5a56573cffc6e3de9a515 (patch)
tree7c3eb29532e7c4b36a9da13c5890664fb816959b /src/renderers/pieWindow.vala
Imported Upstream version 0.2+gitdfdad95upstream/0.2+gitdfdad95
Diffstat (limited to 'src/renderers/pieWindow.vala')
-rw-r--r--src/renderers/pieWindow.vala263
1 files changed, 263 insertions, 0 deletions
diff --git a/src/renderers/pieWindow.vala b/src/renderers/pieWindow.vala
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+/*
+Copyright (c) 2011 by Simon Schneegans
+
+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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+using GLib.Math;
+
+namespace GnomePie {
+
+// An invisible window. Used to draw Pies onto.
+
+public class PieWindow : Gtk.Window {
+
+ public signal void on_closing();
+
+ private PieRenderer renderer;
+ private bool closing = false;
+ private GLib.Timer timer;
+
+ private bool has_compositing = false;
+
+ private Image background = null;
+
+ public PieWindow() {
+ this.renderer = new PieRenderer();
+
+ this.set_title("Gnome-Pie");
+ this.set_skip_taskbar_hint(true);
+ this.set_skip_pager_hint(true);
+ this.set_keep_above(true);
+ this.set_type_hint(Gdk.WindowTypeHint.SPLASHSCREEN);
+ this.set_decorated(false);
+ this.set_resizable(false);
+ this.icon_name = "gnome-pie";
+ this.set_accept_focus(false);
+
+ if (this.screen.is_composited()) {
+ this.set_colormap(this.screen.get_rgba_colormap());
+ this.has_compositing = true;
+ }
+
+ this.add_events(Gdk.EventMask.BUTTON_RELEASE_MASK |
+ Gdk.EventMask.KEY_RELEASE_MASK |
+ Gdk.EventMask.KEY_PRESS_MASK |
+ Gdk.EventMask.POINTER_MOTION_MASK);
+
+ this.button_release_event.connect ((e) => {
+ if (e.button == 1) this.activate_slice();
+ else this.cancel();
+ return true;
+ });
+
+ // remember last pressed key in order to disable key repeat
+ uint last_key = 0;
+ this.key_press_event.connect((e) => {
+ if (e.keyval != last_key) {
+ last_key = e.keyval;
+ this.handle_key_press(e.keyval);
+ }
+ return true;
+ });
+
+ this.key_release_event.connect((e) => {
+ last_key = 0;
+ if (Config.global.turbo_mode)
+ this.activate_slice();
+ else
+ this.handle_key_release(e.keyval);
+ return true;
+ });
+
+ this.motion_notify_event.connect((e) => {
+ this.renderer.on_mouse_move();
+ return true;
+ });
+
+ this.expose_event.connect(this.draw);
+ }
+
+ public void load_pie(Pie pie) {
+ this.renderer.load_pie(pie);
+ this.set_window_position();
+ this.set_size_request(renderer.get_size(), renderer.get_size());
+ }
+
+ public void open() {
+ this.realize();
+
+ if (!this.has_compositing) {
+ int x, y, width, height;
+ this.get_position(out x, out y);
+ this.get_size(out width, out height);
+ this.background = new Image.capture_screen(x, y, width+1, height+1);
+ }
+
+ this.show();
+ this.fix_focus();
+
+ this.timer = new GLib.Timer();
+ this.timer.start();
+ this.queue_draw();
+
+ Timeout.add((uint)(1000.0/Config.global.refresh_rate), () => {
+ this.queue_draw();
+ return this.visible;
+ });
+ }
+
+ private bool draw(Gtk.Widget da, Gdk.EventExpose event) {
+ // clear the window
+ var ctx = Gdk.cairo_create(this.window);
+
+ if (this.has_compositing) {
+ ctx.set_operator (Cairo.Operator.CLEAR);
+ ctx.paint();
+ ctx.set_operator (Cairo.Operator.OVER);
+ } else {
+ ctx.set_operator (Cairo.Operator.OVER);
+ ctx.set_source_surface(background.surface, -1, -1);
+ ctx.paint();
+ }
+
+ ctx.translate(this.width_request*0.5, this.height_request*0.5);
+
+ double mouse_x = 0.0, mouse_y = 0.0;
+ this.get_pointer(out mouse_x, out mouse_y);
+
+ double frame_time = this.timer.elapsed();
+ this.timer.reset();
+
+ this.renderer.draw(frame_time, ctx, (int)(mouse_x - this.width_request*0.5),
+ (int)(mouse_y - this.height_request*0.5));
+
+ return true;
+ }
+
+ private void activate_slice() {
+ if (!this.closing) {
+ this.closing = true;
+ this.on_closing();
+ this.unfix_focus();
+ this.renderer.activate();
+
+ Timeout.add((uint)(Config.global.theme.fade_out_time*1000), () => {
+ this.destroy();
+ //ThemedIcon.clear_cache();
+ return false;
+ });
+ }
+ }
+
+ private void cancel() {
+ if (!this.closing) {
+ this.closing = true;
+ this.on_closing();
+ this.unfix_focus();
+ this.renderer.cancel();
+
+ Timeout.add((uint)(Config.global.theme.fade_out_time*1000), () => {
+ this.destroy();
+ //ThemedIcon.clear_cache();
+ return false;
+ });
+ }
+ }
+
+ private void set_window_position() {
+ if(Config.global.open_at_mouse) this.set_position(Gtk.WindowPosition.MOUSE);
+ else this.set_position(Gtk.WindowPosition.CENTER);
+ }
+
+ private void handle_key_press(uint key) {
+ if (Gdk.keyval_name(key) == "Escape") this.cancel();
+ else if (Gdk.keyval_name(key) == "Return") this.activate_slice();
+ else if (!Config.global.turbo_mode) {
+ if (Gdk.keyval_name(key) == "Up") this.renderer.select_up();
+ else if (Gdk.keyval_name(key) == "Down") this.renderer.select_down();
+ else if (Gdk.keyval_name(key) == "Left") this.renderer.select_left();
+ else if (Gdk.keyval_name(key) == "Right") this.renderer.select_right();
+ else if (Gdk.keyval_name(key) == "Alt_L") this.renderer.show_hotkeys = true;
+ else {
+ int index = -1;
+
+ if (key >= 48 && key <= 57) index = (int)key - 48;
+ else if (key >= 97 && key <= 122) index = (int)key - 87;
+ else if (key >= 65 && key <= 90) index = (int)key - 55;
+
+ if (index >= 0 && index < this.renderer.slice_count()) {
+ this.renderer.set_highlighted_slice(index);
+
+ if (this.renderer.active_slice == index) {
+ GLib.Timeout.add((uint)(Config.global.theme.transition_time*1000.0), ()=> {
+ this.activate_slice();
+ return false;
+ });
+ }
+
+ }
+ }
+ }
+ }
+
+ private void handle_key_release(uint key) {
+ if (!Config.global.turbo_mode) {
+ if (Gdk.keyval_name(key) == "Alt_L") this.renderer.show_hotkeys = false;
+ }
+ }
+
+ // utilities for grabbing focus
+ // Code from Gnome-Do/Synapse
+ private void fix_focus() {
+ uint32 timestamp = Gtk.get_current_event_time();
+ this.present_with_time(timestamp);
+ this.get_window().raise();
+ this.get_window().focus(timestamp);
+
+ int i = 0;
+ Timeout.add(100, () => {
+ if (++i >= 100) return false;
+ return !try_grab_window();
+ });
+ }
+
+ // Code from Gnome-Do/Synapse
+ private void unfix_focus() {
+ uint32 time = Gtk.get_current_event_time();
+ Gdk.pointer_ungrab(time);
+ Gdk.keyboard_ungrab(time);
+ Gtk.grab_remove(this);
+ }
+
+ // Code from Gnome-Do/Synapse
+ private bool try_grab_window() {
+ uint time = Gtk.get_current_event_time();
+ if (Gdk.pointer_grab(this.get_window(), true, Gdk.EventMask.BUTTON_PRESS_MASK |
+ Gdk.EventMask.BUTTON_RELEASE_MASK | Gdk.EventMask.POINTER_MOTION_MASK,
+ null, null, time) == Gdk.GrabStatus.SUCCESS) {
+
+ if (Gdk.keyboard_grab(this.get_window(), true, time) == Gdk.GrabStatus.SUCCESS) {
+ Gtk.grab_add(this);
+ return true;
+ } else {
+ Gdk.pointer_ungrab(time);
+ return false;
+ }
+ }
+ return false;
+ }
+}
+
+}