From 3997b71e281a5f43cc8c1892e85de30728df7b2d Mon Sep 17 00:00:00 2001 From: Alessandro Ghedini Date: Sun, 20 Nov 2011 15:50:38 +0100 Subject: Imported Upstream version 0.3.1 --- src/renderers/pieWindow.vala | 153 ++++++++++++++++++++++++++++--------------- 1 file changed, 99 insertions(+), 54 deletions(-) (limited to 'src/renderers/pieWindow.vala') diff --git a/src/renderers/pieWindow.vala b/src/renderers/pieWindow.vala index c4ac2ec..59117df 100644 --- a/src/renderers/pieWindow.vala +++ b/src/renderers/pieWindow.vala @@ -19,19 +19,52 @@ using GLib.Math; namespace GnomePie { -// An invisible window. Used to draw Pies onto. +///////////////////////////////////////////////////////////////////////// +/// An invisible window. Used to draw Pies onto. +///////////////////////////////////////////////////////////////////////// public class PieWindow : Gtk.Window { + + ///////////////////////////////////////////////////////////////////// + /// Signal which gets emitted when the PieWindow is about to close. + ///////////////////////////////////////////////////////////////////// public signal void on_closing(); + + ///////////////////////////////////////////////////////////////////// + /// The owned renderer. + ///////////////////////////////////////////////////////////////////// private PieRenderer renderer; + + ///////////////////////////////////////////////////////////////////// + /// True, if the Pie is currently fading out. + ///////////////////////////////////////////////////////////////////// + private bool closing = false; + + ///////////////////////////////////////////////////////////////////// + /// A timer used for calculating the frame time. + ///////////////////////////////////////////////////////////////////// + private GLib.Timer timer; + ///////////////////////////////////////////////////////////////////// + /// True, if the screen supports compositing. + ///////////////////////////////////////////////////////////////////// + private bool has_compositing = false; + ///////////////////////////////////////////////////////////////////// + /// The background image used for fake transparency if + /// has_compositing is false. + ///////////////////////////////////////////////////////////////////// + private Image background = null; + + ///////////////////////////////////////////////////////////////////// + /// C'tor, sets up the window. + ///////////////////////////////////////////////////////////////////// public PieWindow() { this.renderer = new PieRenderer(); @@ -46,19 +79,27 @@ public class PieWindow : Gtk.Window { this.icon_name = "gnome-pie"; this.set_accept_focus(false); + // check for compositing if (this.screen.is_composited()) { this.set_colormap(this.screen.get_rgba_colormap()); this.has_compositing = true; } + // set up event filter this.add_events(Gdk.EventMask.BUTTON_RELEASE_MASK | Gdk.EventMask.KEY_RELEASE_MASK | Gdk.EventMask.KEY_PRESS_MASK | Gdk.EventMask.POINTER_MOTION_MASK); + // activate on left click this.button_release_event.connect ((e) => { - if (e.button == 1) this.activate_slice(); - else this.cancel(); + if (e.button == 1 || this.renderer.turbo_mode) this.activate_slice(); + return true; + }); + + // cancel on right click + this.button_press_event.connect ((e) => { + if (e.button == 3) this.cancel(); return true; }); @@ -72,32 +113,44 @@ public class PieWindow : Gtk.Window { return true; }); + // activate on key release if turbo_mode is enabled this.key_release_event.connect((e) => { last_key = 0; - if (Config.global.turbo_mode) + if (this.renderer.turbo_mode) this.activate_slice(); else this.handle_key_release(e.keyval); return true; }); + // notify the renderer of mouse move events this.motion_notify_event.connect((e) => { this.renderer.on_mouse_move(); return true; }); + // draw the pie on expose this.expose_event.connect(this.draw); } + + ///////////////////////////////////////////////////////////////////// + /// Loads a Pie to be rendered. + ///////////////////////////////////////////////////////////////////// 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()); + this.set_size_request(renderer.size, renderer.size); } + ///////////////////////////////////////////////////////////////////// + /// Opens the window. load_pie should have been called before. + ///////////////////////////////////////////////////////////////////// + public void open() { this.realize(); + // capture the background image if there is no compositing if (!this.has_compositing) { int x, y, width, height; this.get_position(out x, out y); @@ -105,23 +158,31 @@ public class PieWindow : Gtk.Window { this.background = new Image.capture_screen(x, y, width+1, height+1); } + // capture the input focus this.show(); - this.fix_focus(); + FocusGrabber.grab(this); + // start the timer this.timer = new GLib.Timer(); this.timer.start(); this.queue_draw(); + // the main draw loop Timeout.add((uint)(1000.0/Config.global.refresh_rate), () => { this.queue_draw(); return this.visible; }); } + + ///////////////////////////////////////////////////////////////////// + /// Draw the Pie. + ///////////////////////////////////////////////////////////////////// private bool draw(Gtk.Widget da, Gdk.EventExpose event) { // clear the window var ctx = Gdk.cairo_create(this.window); + // paint the background image if there is no compositing if (this.has_compositing) { ctx.set_operator (Cairo.Operator.CLEAR); ctx.paint(); @@ -132,59 +193,80 @@ public class PieWindow : Gtk.Window { ctx.paint(); } + // align the context to the center of the PieWindow ctx.translate(this.width_request*0.5, this.height_request*0.5); - + + // get the mouse position double mouse_x = 0.0, mouse_y = 0.0; this.get_pointer(out mouse_x, out mouse_y); + // store the frame time double frame_time = this.timer.elapsed(); this.timer.reset(); + // render the Pie this.renderer.draw(frame_time, ctx, (int)(mouse_x - this.width_request*0.5), (int)(mouse_y - this.height_request*0.5)); return true; } + ///////////////////////////////////////////////////////////////////// + /// Activates the currently activate slice. + ///////////////////////////////////////////////////////////////////// + private void activate_slice() { if (!this.closing) { this.closing = true; this.on_closing(); - this.unfix_focus(); + FocusGrabber.ungrab(this); this.renderer.activate(); Timeout.add((uint)(Config.global.theme.fade_out_time*1000), () => { this.destroy(); - //ThemedIcon.clear_cache(); + ThemedIcon.clear_cache(); return false; }); } } + ///////////////////////////////////////////////////////////////////// + /// Activates no slice and closes the PieWindow. + ///////////////////////////////////////////////////////////////////// + private void cancel() { if (!this.closing) { this.closing = true; this.on_closing(); - this.unfix_focus(); + FocusGrabber.ungrab(this); this.renderer.cancel(); Timeout.add((uint)(Config.global.theme.fade_out_time*1000), () => { this.destroy(); - //ThemedIcon.clear_cache(); + ThemedIcon.clear_cache(); return false; }); } } + ///////////////////////////////////////////////////////////////////// + /// Sets the position of the window to the center of the screen or to + /// the mouse. + ///////////////////////////////////////////////////////////////////// + private void set_window_position() { if(Config.global.open_at_mouse) this.set_position(Gtk.WindowPosition.MOUSE); else this.set_position(Gtk.WindowPosition.CENTER); } + ///////////////////////////////////////////////////////////////////// + /// Do some useful stuff when keys are pressed. + ///////////////////////////////////////////////////////////////////// + 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) { + else if (!this.renderer.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(); @@ -212,52 +294,15 @@ public class PieWindow : Gtk.Window { } } + ///////////////////////////////////////////////////////////////////// + /// Do some useful stuff when keys are released. + ///////////////////////////////////////////////////////////////////// + private void handle_key_release(uint key) { - if (!Config.global.turbo_mode) { + if (!this.renderer.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; - } } } -- cgit v1.2.3