Made struct matrix a subclass of Fl_Graphics_Device class to avoid collision

with application-defined names.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8471 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Fl_Device.H

@@ -55,15 +55,6 @@ FL_EXPORT extern Fl_Graphics_Driver *fl_graphics_driver;
  */
 typedef void (*Fl_Draw_Image_Cb)(void* data,int x,int y,int w,uchar* buf);
 
-#define REGION_STACK_SIZE 10
-#define REGION_STACK_MAX (REGION_STACK_SIZE - 1)
-
-#define MATRIX_STACK_SIZE 32
-#define MATRIX_STACK_MAX (MATRIX_STACK_SIZE - 1)
-/** A 2D coordinate transformation matrix
- */
-struct matrix {double a, b, c, d, x, y;};
-
 // typedef what the x,y fields in a point are:
 #ifdef WIN32
 typedef int COORD_T;
@@ -97,6 +88,8 @@ public:
   virtual const char *class_name() {return class_id;};
 };
 
+#define FL_REGION_STACK_SIZE 10
+#define FL_MATRIX_STACK_SIZE 32
 /**
  \brief A virtual class subclassed for each graphics driver FLTK uses.
  *
@@ -106,19 +99,27 @@ public:
  in the \ref fl_drawings and \ref fl_attributes modules. 
   */
 class FL_EXPORT Fl_Graphics_Driver : public Fl_Device {
+public:
+  /** A 2D coordinate transformation matrix
+   */
+  struct matrix {double a, b, c, d, x, y;};
+private:
+  static const matrix m0;
   Fl_Font font_; // current font
   Fl_Fontsize size_; // current font size
   Fl_Color color_; // current color
   enum {LINE, LOOP, POLYGON, POINT_};
   int sptr;
-  matrix stack[MATRIX_STACK_SIZE];
+  static const int matrix_stack_size = FL_MATRIX_STACK_SIZE;
+  matrix stack[FL_MATRIX_STACK_SIZE];
   matrix m;
   int n, p_size, gap_;
   XPOINT *p;
   int what;
   int fl_clip_state_number;
   int rstackptr;
-  Fl_Region rstack[REGION_STACK_MAX];
+  static const int region_stack_max = FL_REGION_STACK_SIZE - 1;
+  Fl_Region rstack[FL_REGION_STACK_SIZE];
 #ifdef WIN32
   int numcount;
   int counts[20];

src/Fl_Device.cxx

@@ -51,7 +51,7 @@ void Fl_Surface_Device::set_current(void)
   _surface = this;
 }
 
-static matrix m0 = {1, 0, 0, 1, 0, 0};
+const Fl_Graphics_Driver::matrix Fl_Graphics_Driver::m0 = {1, 0, 0, 1, 0, 0};
 
 Fl_Graphics_Driver::Fl_Graphics_Driver() {
   font_ = 0;

src/fl_rect.cxx

@@ -590,14 +590,14 @@ void Fl_Graphics_Driver::push_clip(int x, int y, int w, int h) {
 # error unsupported platform
 #endif
   }
-  if (rstackptr < REGION_STACK_MAX) rstack[++rstackptr] = r;
+  if (rstackptr < region_stack_max) rstack[++rstackptr] = r;
   else Fl::warning("fl_push_clip: clip stack overflow!\n");
   fl_restore_clip();
 }
 
 // make there be no clip (used by fl_begin_offscreen() only!)
 void Fl_Graphics_Driver::push_no_clip() {
-  if (rstackptr < REGION_STACK_MAX) rstack[++rstackptr] = 0;
+  if (rstackptr < region_stack_max) rstack[++rstackptr] = 0;
   else Fl::warning("fl_push_no_clip: clip stack overflow!\n");
   fl_restore_clip();
 }

src/fl_vertex.cxx

@@ -45,7 +45,7 @@
 #include <stdlib.h>
 
 void Fl_Graphics_Driver::push_matrix() {
-  if (sptr==MATRIX_STACK_SIZE)
+  if (sptr==matrix_stack_size)
     Fl::error("fl_push_matrix(): matrix stack overflow.");
   else
     stack[sptr++] = m;