add context panel

app/gcompose/src/MainWindow.cpp

@@ -1,6 +1,7 @@
 #include "MainWindow.h"
 #include <QSplitter>
 #include "MainPanel.h"
+#include "Core/ObjectsContext.h"
 
 using namespace uLib;
 
@@ -14,3 +15,7 @@ MainWindow::MainWindow(QWidget* parent) : QMainWindow(parent) {
 
 MainWindow::~MainWindow() {
 }
+
+void MainWindow::setContext(uLib::ObjectsContext* context) {
+    m_panel->setContext(context);
+}