1 files changed, 18 insertions, 1 deletions
diff --git a/src/Gui/RenderArea.h b/src/Gui/RenderArea.h
index d0b4ad3..16c312e 100644
--- a/src/Gui/RenderArea.h
+++ b/src/Gui/RenderArea.h
@@ -2,6 +2,7 @@
 #define ZOOMEDIT_GUI_RENDERAREA_H_
 
 #include <gtkmm/drawingarea.h>
+#include <gtkmm/scrollbar.h>
 #include <libglademm/xml.h>
 #include <gtk/gtkgl.h>
 
@@ -15,7 +16,10 @@ class RenderArea : public Gtk::DrawingArea {
   private:
     static GdkGLConfig *glconfig;
     
-    float x, y;
+    Gtk::HScrollbar *hScrollbar;
+    Gtk::VScrollbar *vScrollbar;
+    
+    float xCenter, yCenter;
     
     int zoomLevel;
     float scale;
@@ -28,9 +32,22 @@ class RenderArea : public Gtk::DrawingArea {
     void zoom(int zoom, float x = 0.5f, float y = 0.5f);
     
     void updateViewport();
+    void updateScrollbars(float x = 0.5f, float y = 0.5f);
+    void updateScrolling();
     
     void drawGrid();
     
+    float getViewWidth() const {
+      return get_width()/scale;
+    }
+    
+    float getViewHeight() const {
+      return get_height()/scale;
+    }
+    
+    float getImageWidth() const {return 10;}
+    float getImageHeight() const {return 10;}
+    
     bool gdkGLBegin() {
       GtkWidget *widget = GTK_WIDGET(gobj());