trigger_ui: add a color-picker button

gtk2_ardour/trigger_ui.cc

@@ -35,6 +35,7 @@
 #include "ardour/region.h"
 #include "ardour/triggerbox.h"
 
+#include "gtkmm/sizegroup.h"
 #include "gtkmm2ext/utils.h"
 
 #include "audio_region_properties_box.h"
@@ -73,6 +74,7 @@ static std::string longest_launch;
 
 TriggerUI::TriggerUI ()
 	: _renaming (false)
+	, _color_button (ArdourButton::Element (ArdourButton::just_led_default_elements | ArdourButton::ColorBox))
 	, _follow_action_button (ArdourButton::led_default_elements)
 	, _velocity_adjustment(1.,0.,1.0,0.01,0.1)
 	, _velocity_slider (&_velocity_adjustment, boost::shared_ptr<PBD::Controllable>(), 24/*length*/, 12/*girth*/ )
@@ -207,11 +209,22 @@ TriggerUI::TriggerUI ()
 	_load_button.set_text (_("Load"));
 	_load_button.signal_clicked.connect (sigc::mem_fun (*this, (&TriggerUI::choose_sample)));
 
+	_color_button.set_name("FollowAction");
+	_color_button.signal_clicked.connect (sigc::mem_fun (*this, (&TriggerUI::choose_color)));
+
+	_follow_size_group  = Gtk::SizeGroup::create (Gtk::SIZE_GROUP_VERTICAL);
+	_follow_size_group->add_widget(_name_frame);
+	_follow_size_group->add_widget(_load_button);
+	_follow_size_group->add_widget(_color_button);
+	_follow_size_group->add_widget(_velocity_slider);
+	_follow_size_group->add_widget(_follow_count_spinner);
+
 	int row=0;
 	Gtk::Label *label;
 
 	attach(_name_frame,       0, 2, row, row+1, Gtk::FILL, Gtk::SHRINK );
-	attach(_load_button,      2, 3, row, row+1, Gtk::FILL, Gtk::SHRINK ); row++;
+	attach(_load_button,      2, 3, row, row+1, Gtk::FILL, Gtk::SHRINK );
+	attach(_color_button,     3, 4, row, row+1, Gtk::FILL, Gtk::SHRINK ); row++;
 
 	label = manage(new Gtk::Label(_("Velocity Sense:")));  label->set_alignment(1.0, 0.5);
 	attach(*label,                 0, 1, row, row+1, Gtk::FILL, Gtk::SHRINK );
@@ -257,6 +270,32 @@ TriggerUI::~TriggerUI ()
 {
 }
 
+void
+TriggerUI::choose_color ()
+{
+	_color_dialog.get_colorsel()->set_has_opacity_control (false);
+	_color_dialog.get_colorsel()->set_has_palette (true);
+	_color_dialog.get_ok_button()->signal_clicked().connect (sigc::bind (sigc::mem_fun (_color_dialog, &Gtk::Dialog::response), Gtk::RESPONSE_ACCEPT));
+	_color_dialog.get_cancel_button()->signal_clicked().connect (sigc::bind (sigc::mem_fun (_color_dialog, &Gtk::Dialog::response), Gtk::RESPONSE_CANCEL));
+
+	Gdk::Color c = ARDOUR_UI_UTILS::gdk_color_from_rgba(trigger()->color());
+
+	_color_dialog.get_colorsel()->set_previous_color (c);
+	_color_dialog.get_colorsel()->set_current_color (c);
+
+	switch (_color_dialog.run()) {
+		case Gtk::RESPONSE_ACCEPT: {
+			c = _color_dialog.get_colorsel()->get_current_color();
+			color_t ct = ARDOUR_UI_UTILS::gdk_color_to_rgba(c);
+			trigger()->set_color(ct);
+		} break;
+		default:
+			break;
+	}
+
+	_color_dialog.hide ();
+}
+
 void
 TriggerUI::choose_sample ()
 {
@@ -489,6 +528,7 @@ TriggerUI::set_trigger (ARDOUR::TriggerReference tr)
 	PropertyChange pc;
 
 	pc.add (Properties::name);
+	pc.add (Properties::color);
 	pc.add (Properties::use_follow);
 	pc.add (Properties::legato);
 	pc.add (Properties::quantization);
@@ -659,6 +699,9 @@ TriggerUI::trigger_changed (PropertyChange pc)
 	if (pc.contains (Properties::name)) {
 		_name_label.set_text (trigger()->name());
 	}
+	if (pc.contains (Properties::color)) {
+		_color_button.set_custom_led_color (trigger()->color());
+	}
 	if (pc.contains (Properties::quantization)) {
 		BBT_Offset bbo (trigger()->quantization());
 		_quantize_button.set_active (quantize_length_to_string (bbo));

gtk2_ardour/trigger_ui.h

@@ -48,6 +48,7 @@ class TriggerUI : public Gtk::Table //, public sigc::trackable
 	static std::string launch_style_to_string (ARDOUR::Trigger::LaunchStyle);
 
   private:
+	void choose_color ();
 	void choose_sample ();
 	void sample_chosen (int r);
 
@@ -64,6 +65,8 @@ class TriggerUI : public Gtk::Table //, public sigc::trackable
 	bool entry_button_press (GdkEventButton*);
 	void disconnect_entry_signals ();
 
+	Gtk::ColorSelectionDialog _color_dialog;
+
 	ARDOUR::TriggerReference tref;
 	ARDOUR::TriggerPtr trigger() const;
 
@@ -74,6 +77,9 @@ class TriggerUI : public Gtk::Table //, public sigc::trackable
 	Gtk::EventBox               _namebox;
 	ArdourWidgets::Frame        _name_frame;
 
+	Glib::RefPtr<Gtk::SizeGroup> _follow_size_group;
+	ArdourWidgets::ArdourButton _color_button;
+
 	sigc::connection            _file_chooser_connection;
 	Gtk::FileChooserDialog*     _file_chooser;
 	ArdourWidgets::ArdourButton _load_button;

libs/widgets/wscript

@@ -36,6 +36,7 @@ widgets_sources = [
         'ardour_spinner.cc',
         'barcontroller.cc',
         'binding_proxy.cc',
+        'color_button.cc',
         'eventboxext.cc',
         'choice.cc',
         'fastmeter.cc',