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authorAlessandro Ghedini <al3xbio@gmail.com>2012-01-21 19:07:09 +0100
committerAlessandro Ghedini <al3xbio@gmail.com>2012-01-21 19:07:09 +0100
commit60560a030fda3c539ff9dc1563b9926414a193da (patch)
tree77590b395685a8d48d3615e45629a1610d08c071 /src/gui/triggerSelectButton.vala
parentd6b2677825cbb423e2099563c16321c3e23d7899 (diff)
Imported Upstream version 0.4.0upstream/0.4.0
Diffstat (limited to 'src/gui/triggerSelectButton.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/>.
+*/
+
+namespace GnomePie {
+
+/////////////////////////////////////////////////////////////////////////
+/// This window allows the selection of a hotkey. It is returned in form
+/// of a Trigger. Therefore it can be either a keyboard driven hotkey or
+/// a mouse based hotkey.
+/////////////////////////////////////////////////////////////////////////
+
+public class TriggerSelectButton : Gtk.ToggleButton {
+
+ /////////////////////////////////////////////////////////////////////
+ /// This signal is emitted when the user selects a new hot key.
+ /////////////////////////////////////////////////////////////////////
+
+ public signal void on_select(Trigger trigger);
+
+ /////////////////////////////////////////////////////////////////////
+ /// The currently contained Trigger.
+ /////////////////////////////////////////////////////////////////////
+
+ private Trigger trigger = null;
+
+ /////////////////////////////////////////////////////////////////////
+ /// True, if mouse buttons can be bound as well.
+ /////////////////////////////////////////////////////////////////////
+
+ private bool enable_mouse = false;
+
+ /////////////////////////////////////////////////////////////////////
+ /// These modifiers are ignored.
+ /////////////////////////////////////////////////////////////////////
+
+ private Gdk.ModifierType lock_modifiers = Gdk.ModifierType.MOD2_MASK
+ |Gdk.ModifierType.LOCK_MASK
+ |Gdk.ModifierType.MOD5_MASK;
+
+ /////////////////////////////////////////////////////////////////////
+ /// C'tor, constructs a new TriggerSelectWindow.
+ /////////////////////////////////////////////////////////////////////
+
+ public TriggerSelectButton(bool enable_mouse) {
+ this.enable_mouse = enable_mouse;
+
+ this.toggled.connect(() => {
+ if (this.active) {
+ this.set_label(_("Press a hotkey ..."));
+ Gtk.grab_add(this);
+ FocusGrabber.grab(this.get_window(), true, true, true);
+ }
+ });
+
+ this.button_press_event.connect(this.on_button_press);
+ this.key_press_event.connect(this.on_key_press);
+ this.set_trigger(new Trigger());
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Makes the button display the given Trigger.
+ /////////////////////////////////////////////////////////////////////
+
+ public void set_trigger(Trigger trigger) {
+ this.trigger = trigger;
+ this.set_label(trigger.label);
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Can be called to cancel the selection process.
+ /////////////////////////////////////////////////////////////////////
+
+ private void cancel() {
+ this.set_label(trigger.label);
+ this.set_active(false);
+ Gtk.grab_remove(this);
+ FocusGrabber.ungrab(true, true);
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Makes the button display the given Trigger.
+ /////////////////////////////////////////////////////////////////////
+
+ private void update_trigger(Trigger trigger) {
+ if (this.trigger.name != trigger.name) {
+ this.set_trigger(trigger);
+ this.on_select(this.trigger);
+ }
+
+ this.cancel();
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Called when the user presses a keyboard key.
+ /////////////////////////////////////////////////////////////////////
+
+ private bool on_key_press(Gdk.EventKey event) {
+ if (this.active) {
+ if (Gdk.keyval_name(event.keyval) == "Escape") {
+ this.cancel();
+ } else if (Gdk.keyval_name(event.keyval) == "BackSpace") {
+ this.update_trigger(new Trigger());
+ } else if (event.is_modifier == 0) {
+ Gdk.ModifierType state = event.state & ~ this.lock_modifiers;
+ this.update_trigger(new Trigger.from_values(event.keyval, state, false, false, false, false));
+ }
+
+ return true;
+ }
+ return false;
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Called when the user presses a button of the mouse.
+ /////////////////////////////////////////////////////////////////////
+
+ private bool on_button_press(Gdk.EventButton event) {
+ if (this.active) {
+ Gtk.Allocation rect;
+ this.get_allocation(out rect);
+ if (event.x < rect.x || event.x > rect.x + rect.width
+ || event.y < rect.y || event.y > rect.y + rect.height) {
+
+ this.cancel();
+ return true;
+ }
+ }
+
+ if (this.active && this.enable_mouse) {
+ Gdk.ModifierType state = event.state & ~ this.lock_modifiers;
+ var new_trigger = new Trigger.from_values((int)event.button, state, true,
+ false, false, false);
+
+ if (new_trigger.key_code != 1) this.update_trigger(new_trigger);
+ else this.cancel();
+
+ return true;
+ } else if (this.active) {
+ this.cancel();
+ return true;
+ }
+
+ return false;
+ }
+}
+
+}