button hacks and more

git-svn-id: svn://localhost/trunk/ardour2@200 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 80 insertions, 0 deletions

diff --git a/libs/gtkmm2ext/stateful_button.cc b/libs/gtkmm2ext/stateful_button.cc
new file mode 100644
index 0000000000..074d086651
--- /dev/null
+++ b/libs/gtkmm2ext/stateful_button.cc
@@ -0,0 +1,80 @@
+#include <string>
+#include <iostream>
+#include "gtkmm2ext/stateful_button.h"
+
+using namespace Gtk;
+using namespace Glib;
+using namespace Gtkmm2ext;
+using namespace std;
+
+StatefulButton::StatefulButton ()
+{
+	current_state = 0;
+	have_saved_bg = false;
+}
+
+StatefulButton::StatefulButton (const string& label)
+	: Button (label)
+{
+	current_state = 0;
+	have_saved_bg = false;
+}
+
+void
+StatefulButton::set_colors (const vector<Gdk::Color>& c)
+{
+	colors = c;
+	current_state++; // to force transition
+	set_state (current_state - 1);
+}
+
+void
+StatefulButton::on_realize ()
+{
+	Button::on_realize ();
+
+	if (!have_saved_bg) {
+		saved_bg = get_style()->get_bg (STATE_NORMAL);
+		have_saved_bg = true;
+	}
+
+	current_state++; // to force transition
+	set_state (current_state - 1);
+}
+
+void
+StatefulButton::set_state (int n)
+{
+	if (is_realized()) {
+
+		if (n == current_state) {
+			return;
+		}
+		
+		if (n == 0) {
+			
+			/* back to the default color */
+			
+			if (have_saved_bg) {
+				modify_bg (STATE_NORMAL, saved_bg);
+				modify_bg (STATE_ACTIVE, saved_bg);
+				modify_bg (STATE_SELECTED, saved_bg);
+				modify_bg (STATE_PRELIGHT, saved_bg);
+			}
+			
+
+		} else {
+			
+			int index = (n-1) % colors.size ();
+			
+			modify_bg (STATE_NORMAL, colors[index]);
+			modify_bg (STATE_ACTIVE, colors[index]);
+			modify_bg (STATE_SELECTED, colors[index]);
+			modify_bg (STATE_PRELIGHT, colors[index]);
+		}
+		
+		/* leave insensitive alone */
+	}
+
+	current_state = n;
+}