1 files changed, 141 insertions, 0 deletions
diff --git a/dw/fltkviewbase.hh b/dw/fltkviewbase.hh
new file mode 100644
index 0000000..eb4ec32
--- /dev/null
+++ b/dw/fltkviewbase.hh
@@ -0,0 +1,141 @@
+#ifndef __DW_FLTKVIEWBASE_HH__
+#define __DW_FLTKVIEWBASE_HH__
+
+#include <time.h>         // for time_t
+#include <sys/time.h>     // for time_t in FreeBSD
+
+#include <FL/Fl_Group.H>
+#include <FL/x.H>
+
+#include "fltkcore.hh"
+
+namespace dw {
+namespace fltk {
+
+class FltkViewBase: public FltkView, public Fl_Group
+{
+private:
+   class BackBuffer {
+      private:
+         int w;
+         int h;
+         bool created;
+
+      public:
+         Fl_Offscreen offscreen;
+
+         BackBuffer ();
+         ~BackBuffer ();
+         void setSize(int w, int h);
+   };
+
+   typedef enum { DRAW_PLAIN, DRAW_CLIPPED, DRAW_BUFFERED } DrawType;
+
+   int bgColor;
+   core::Region drawRegion;
+   core::Rectangle *exposeArea;
+   static BackBuffer *backBuffer;
+   static bool backBufferInUse;
+
+   void draw (const core::Rectangle *rect, DrawType type);
+   void drawChildWidgets ();
+   int manageTabToFocus();
+   inline void clipPoint (int *x, int *y, int border) {
+      if (exposeArea) {
+         if (*x < exposeArea->x - border)
+            *x = exposeArea->x - border;
+         if (*x > exposeArea->x + exposeArea->width + border)
+            *x = exposeArea->x + exposeArea->width + border;
+         if (*y < exposeArea->y - border)
+            *y = exposeArea->y - border;
+         if (*y > exposeArea->y + exposeArea->height + border)
+            *y = exposeArea->y + exposeArea->height + border;
+      }
+   }
+protected:
+   core::Layout *theLayout;
+   int canvasWidth, canvasHeight;
+   int mouse_x, mouse_y;
+   Fl_Widget *focused_child;
+
+   virtual int translateViewXToCanvasX (int x) = 0;
+   virtual int translateViewYToCanvasY (int y) = 0;
+   virtual int translateCanvasXToViewX (int x) = 0;
+   virtual int translateCanvasYToViewY (int y) = 0;
+
+public:
+   FltkViewBase (int x, int y, int w, int h, const char *label = 0);
+   ~FltkViewBase ();
+
+   void draw();
+   int handle (int event);
+
+   void setLayout (core::Layout *layout);
+   void setCanvasSize (int width, int ascent, int descent);
+   void setCursor (core::style::Cursor cursor);
+   void setBgColor (core::style::Color *color);
+
+   void startDrawing (core::Rectangle *area);
+   void finishDrawing (core::Rectangle *area);
+   void queueDraw (core::Rectangle *area);
+   void queueDrawTotal ();
+   void cancelQueueDraw ();
+   void drawPoint (core::style::Color *color,
+                   core::style::Color::Shading shading,
+                   int x, int y);
+   void drawLine (core::style::Color *color,
+                  core::style::Color::Shading shading,
+                  int x1, int y1, int x2, int y2);
+   void drawTypedLine (core::style::Color *color,
+                       core::style::Color::Shading shading,
+                       core::style::LineType type, int width,
+                       int x1, int y1, int x2, int y2);
+   void drawRectangle (core::style::Color *color,
+                       core::style::Color::Shading shading, bool filled,
+                       int x, int y, int width, int height);
+   void drawArc (core::style::Color *color,
+                 core::style::Color::Shading shading, bool filled,
+                 int centerX, int centerY, int width, int height,
+                 int angle1, int angle2);
+    void drawPolygon (core::style::Color *color,
+                      core::style::Color::Shading shading,
+                      bool filled, bool convex,
+                      core::Point *points, int npoints);
+
+   core::View *getClippingView (int x, int y, int width, int height);
+   void mergeClippingView (core::View *clippingView);
+   void setBufferedDrawing (bool b);
+};
+
+
+class FltkWidgetView: public FltkViewBase
+{
+public:
+   FltkWidgetView (int x, int y, int w, int h, const char *label = 0);
+   ~FltkWidgetView ();
+
+   void drawText (core::style::Font *font,
+                  core::style::Color *color,
+                  core::style::Color::Shading shading,
+                  int x, int y, const char *text, int len);
+   void drawSimpleWrappedText (core::style::Font *font,
+                               core::style::Color *color,
+                               core::style::Color::Shading shading,
+                               int x, int y, int w, int h,
+                               const char *text);
+   void drawImage (core::Imgbuf *imgbuf, int xRoot, int yRoot,
+                   int x, int y, int width, int height);
+
+   bool usesFltkWidgets ();
+   void addFltkWidget (Fl_Widget *widget, core::Allocation *allocation);
+   void removeFltkWidget (Fl_Widget *widget);
+   void allocateFltkWidget (Fl_Widget *widget,
+                            core::Allocation *allocation);
+   void drawFltkWidget (Fl_Widget *widget, core::Rectangle *area);
+};
+
+} // namespace fltk
+} // namespace dw
+
+#endif // __DW_FLTKVIEWBASE_HH__
+