new ArdourButton class, to start to provide more control over how our buttons work and appear; use ArdourButtons for monitor, solo isolate and solo safe buttons, and in the processor box; don't save UI config file (canvas colors) to the user's home dir unless one or more parameters were modified by the user

git-svn-id: svn://localhost/ardour2/branches/3.0@10311 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 83 insertions, 0 deletions

diff --git a/gtk2_ardour/ardour_button.h b/gtk2_ardour/ardour_button.h
new file mode 100644
index 0000000000..a499f60b3a
--- /dev/null
+++ b/gtk2_ardour/ardour_button.h
@@ -0,0 +1,83 @@
+/*
+    Copyright (C) 2010 Paul Davis
+
+    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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#ifndef __gtk2_ardour_ardour_button_h__
+#define __gtk2_ardour_ardour_button_h__
+
+#include <stdint.h>
+
+#include <gtkmm/activatable.h>
+
+#include "cairo_widget.h"
+
+class ArdourButton : public CairoWidget, Gtk::Activatable
+{
+  public:
+	ArdourButton ();
+	virtual ~ArdourButton ();
+
+        void set_diameter (float);
+
+	void set_text (const std::string&);
+	void set_markup (const std::string&);
+
+	void set_led_left (bool yn);
+	void set_distinct_led_click (bool yn);
+
+	sigc::signal<void> signal_clicked;
+
+	void set_state (State s, bool);
+
+  protected:
+	void render (cairo_t *);
+        void on_size_request (Gtk::Requisition* req);
+        void on_realize ();
+	bool on_button_press_event (GdkEventButton*);
+	bool on_button_release_event (GdkEventButton*);
+
+  private:
+	Glib::RefPtr<Pango::Layout> _layout;
+	std::string _text;
+	int     _text_width;
+	int     _text_height;
+	bool    _led_left;
+        float   _diameter;
+        bool    _fixed_diameter;
+	bool    _distinct_led_click;
+
+	cairo_pattern_t* edge_pattern;
+	cairo_pattern_t* fill_pattern;
+	cairo_pattern_t* led_inset_pattern;
+	cairo_pattern_t* reflection_pattern;
+
+	double text_r;
+	double text_g;
+	double text_b;
+	double text_a;
+
+	double led_r;
+	double led_g;
+	double led_b;
+	double led_a;
+
+        void set_colors ();
+	void color_handler ();
+};
+
+#endif /* __gtk2_ardour_ardour_button_h__ */