Make canvas grab events.

Remove silly ctrl+click zoom event grabs.
Add concept of "edit mode", old behaviour = edit mode, edit mode off = no connections or module moving.


git-svn-id: http://svn.drobilla.net/lad/ingen@641 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 20 insertions, 4 deletions

diff --git a/src/libs/gui/PatchCanvas.cpp b/src/libs/gui/PatchCanvas.cpp
index e209a43f..cbe931ab 100644
--- a/src/libs/gui/PatchCanvas.cpp
+++ b/src/libs/gui/PatchCanvas.cpp
@@ -393,6 +393,8 @@ PatchCanvas::canvas_event(GdkEvent* event)
 {
 	assert(event);
 	
+	static bool control_modded = false;
+
 	switch (event->type) {
 
 	case GDK_BUTTON_PRESS:
@@ -403,11 +405,25 @@ PatchCanvas::canvas_event(GdkEvent* event)
 		}
 		break;
 	
-	/*case GDK_KEY_PRESS:
-		if (event->key.keyval == GDK_Delete)
-			destroy_selected();
+	case GDK_KEY_PRESS:
+		if (event->key.keyval == GDK_Delete) {
+			destroy_selection();
+		} else if (event->key.keyval == GDK_Control_L || event->key.keyval == GDK_Control_R) {
+			if (_patch->get_editable() == true) {
+				control_modded = true;
+				_patch->set_editable(false);
+			}
+		}
+		break;
+	
+	case GDK_KEY_RELEASE:
+		if (event->key.keyval == GDK_Control_L || event->key.keyval == GDK_Control_R) {
+			if (_patch->get_editable() == false &&control_modded) {
+				control_modded = false;
+				_patch->set_editable(true);
+			}
+		}
 		break;
-	*/
 		
 	default:
 		break;