- Moved the dw2 tree into dillo2's tree.

1 files changed, 77 insertions, 0 deletions

diff --git a/dw/fltkviewport.hh b/dw/fltkviewport.hh
new file mode 100644
index 00000000..6af377d4
--- /dev/null
+++ b/dw/fltkviewport.hh
@@ -0,0 +1,77 @@
+#ifndef __DW_FLTKVIEWPORT_HH__
+#define __DW_FLTKVIEWPORT_HH__
+
+#include <fltk/Group.h>
+#include <fltk/Scrollbar.h>
+
+#include "core.hh"
+#include "fltkcore.hh"
+#include "fltkviewbase.hh"
+
+namespace dw {
+namespace fltk {
+
+class FltkViewport: public FltkWidgetView
+{
+public:
+   enum GadgetOrientation { GADGET_VERTICAL, GADGET_HORIZONTAL };
+
+private:
+   enum { SCROLLBAR_THICKNESS = 15 };
+
+   int scrollX, scrollY;
+   int scrollDX, scrollDY;
+   int dragScrolling, dragX, dragY;
+
+   ::fltk::Scrollbar *vscrollbar, *hscrollbar;
+
+   GadgetOrientation gadgetOrientation[4];
+   container::typed::List <object::TypedPointer < ::fltk::Widget> > *gadgets; 
+
+   void adjustScrollbarsAndGadgetsAllocation ();
+   void adjustScrollbarValues ();
+   void hscrollbarChanged ();
+   void vscrollbarChanged ();
+   void positionChanged ();
+
+   static void hscrollbarCallback (Widget *hscrollbar, void *viewportPtr);
+   static void vscrollbarCallback (Widget *vscrollbar, void *viewportPtr);
+
+   void updateCanvasWidgets (int oldScrollX, int oldScrollY);
+   static void draw_area (void *data, const Rectangle& cr);
+
+protected:
+   int translateViewXToCanvasX (int x);
+   int translateViewYToCanvasY (int y);
+   int translateCanvasXToViewX (int x);
+   int translateCanvasYToViewY (int y);
+
+public:
+   FltkViewport (int x, int y, int w, int h, const char *label = 0);
+   ~FltkViewport ();
+ 
+   void layout();
+   void draw ();
+   int handle (int event);
+
+   void setCanvasSize (int width, int ascent, int descent);
+
+   bool usesViewport ();
+   int getHScrollbarThickness ();
+   int getVScrollbarThickness ();
+   void scroll(int dx, int dy);
+   void scrollTo (int x, int y);
+   void setViewportSize (int width, int height,
+                         int hScrollbarThickness, int vScrollbarThickness);
+   void setScrollStep(int step);
+
+   void setGadgetOrientation (bool hscrollbarVisible, bool vscrollbarVisible,
+                              GadgetOrientation gadgetOrientation);
+   void addGadget (::fltk::Widget *gadget);
+};
+
+} // namespace fltk
+} // namespace dw
+
+#endif // __DW_FLTKVIEWPORT_HH__
+