started frontend for effect keyframes

ui/comboboxex.cpp

@@ -1,6 +1,7 @@
 #include "comboboxex.h"
 
 #include "project/undo.h"
+#include "panels/project.h"
 
 #include <QUndoCommand>
 #include <QWheelEvent>
@@ -8,32 +9,45 @@
 class ComboBoxExCommand : public QUndoCommand {
 public:
     ComboBoxExCommand(ComboBoxEx* obj, int old_index, int new_index) :
-        combobox(obj), old_val(old_index), new_val(new_index), done(true) {}
+		combobox(obj), old_val(old_index), new_val(new_index), done(true), old_project_changed(project_changed) {}
     void undo() {
         combobox->setCurrentIndex(old_val);
         done = false;
+		project_changed = old_project_changed;
     }
     void redo() {
         if (!done) {
             combobox->setCurrentIndex(new_val);
         }
+		project_changed = true;
     }
 private:
     ComboBoxEx* combobox;
     int old_val;
     int new_val;
     bool done;
+	bool old_project_changed;
 };
 
 ComboBoxEx::ComboBoxEx(QWidget *parent) : QComboBox(parent), index(0) {
     connect(this, SIGNAL(activated(int)), this, SLOT(index_changed(int)));
 }
 
+void ComboBoxEx::setCurrentIndexEx(int i) {
+	index = i;
+	setCurrentIndex(i);
+}
+
+void ComboBoxEx::setCurrentTextEx(const QString &text) {
+	setCurrentText(text);
+	index = currentIndex();
+}
+
 void ComboBoxEx::index_changed(int i) {
-    if (index != i) {
-        undo_stack.push(new ComboBoxExCommand(this, index, i));
-        index = i;
-    }
+	if (index != i) {
+		undo_stack.push(new ComboBoxExCommand(this, index, i));
+		index = i;
+	}
 }
 
 void ComboBoxEx::wheelEvent(QWheelEvent* e) {