store the pixel32 data in the surface so it can be reused

otk/rendercontrol.hh

@@ -7,10 +7,11 @@ extern "C" {
 #include <X11/Xutil.h>
 }
 
+#include "surface.hh"
+
 namespace otk {
 
 class ScreenInfo;
-class Surface;
 class RenderTexture;
 class Font;
 class RenderColor;

otk/renderstyle.cc

@@ -54,8 +54,8 @@ RenderStyle::RenderStyle(int screen, const std::string &stylefile)
     _file(stylefile)
 {
 // pick one..
-//#define FIERON
-#define MERRY
+#define FIERON
+//#define MERRY
 
 #ifdef FIERON
   _root_color = new RenderColor(_screen, 0x272a2f);

otk/surface.cc

@@ -9,6 +9,7 @@
 
 extern "C" {
 #include <X11/Xutil.h>
+#include <cstring>
 }
 
 namespace otk {
@@ -16,6 +17,7 @@ namespace otk {
 Surface::Surface(int screen, const Size &size)
   : _screen(screen),
     _size(size),
+    _pixel_data(new pixel32[size.width()*size.height()]),
     _pixmap(None),
     _xftdraw(0)
 {
@@ -24,6 +26,7 @@ Surface::Surface(int screen, const Size &size)
 Surface::~Surface()
 {
   destroyObjects();
+  delete [] _pixel_data;
 }
 
 void Surface::setPixmap(const RenderColor &color)
@@ -33,6 +36,15 @@ void Surface::setPixmap(const RenderColor &color)
 
   XFillRectangle(**display, _pixmap, color.gc(), 0, 0,
                  _size.width(), _size.height());
+
+  pixel32 val = 0; // XXX set this from the color and shift amounts!
+  for (unsigned int i = 0, s = _size.width() * _size.height(); i < s; ++i) {
+    unsigned char *p = (unsigned char*)&_pixel_data[i];
+    *p = (unsigned char) (val >> 24);
+    *++p = (unsigned char) (val >> 16);
+    *++p = (unsigned char) (val >> 8);
+    *++p = (unsigned char) val;
+  }
 }
 
 void Surface::setPixmap(XImage *image)

otk/surface.hh

@@ -3,23 +3,41 @@
 #define __surface_hh
 
 #include "size.hh"
-#include "truerendercontrol.hh"
-#include "pseudorendercontrol.hh"
 
 extern "C" {
 #include <X11/Xlib.h>
 #define _XFT_NO_COMPAT_ // no Xft 1 API
 #include <X11/Xft/Xft.h>
+
+#ifdef HAVE_STDINT_H
+#  include <stdint.h>
+#else
+#  ifdef HAVE_SYS_TYPES_H
+#    include <sys/types.h>
+#  endif
+#endif
 }
 
 namespace otk {
 
 class ScreenInfo;
 class RenderColor;
+class RenderControl;
+class TrueRenderControl;
+class PseudoRenderControl;
+
+#ifdef HAVE_STDINT_H
+typedef uint32_t pixel32;
+typedef uint16_t pixel16;
+#else
+typedef u_int32_t pixel32;
+typedef u_int16_t pixel16;
+#endif /* HAVE_STDINT_H */
 
 class Surface {
   int _screen;
   Size _size;
+  pixel32 *_pixel_data;
   Pixmap _pixmap;
   XftDraw *_xftdraw;
 
@@ -36,9 +54,11 @@ public:
 
   inline int screen(void) const { return _screen; }
 
-  virtual const Size& size() const { return _size; }
+  const Size& size() const { return _size; }
 
-  virtual Pixmap pixmap() const { return _pixmap; }
+  Pixmap pixmap() const { return _pixmap; }
+
+  pixel32 *pixelData() { return _pixel_data; }
 
   // The RenderControl classes use the internal objects in this class to render
   // to it. Noone else needs them tho, so they are private.

otk/truerendercontrol.cc

@@ -64,23 +64,24 @@ void TrueRenderControl::drawGradientBackground(
   XImage *im = XCreateImage(**display, info->visual(), info->depth(),
                             ZPixmap, 0, NULL, w, h, 32, 0);
   im->byte_order = endian;
-  pixel32 *data = new pixel32[h*w];
-  pixel32 current;
 
   switch (texture.gradient()) {
   case RenderTexture::Vertical:
-    verticalGradient(sf, texture, data);
+    verticalGradient(sf, texture);
     break;
   case RenderTexture::Diagonal:
-    diagonalGradient(sf, texture, data);
+    diagonalGradient(sf, texture);
     break;
   case RenderTexture::CrossDiagonal:
-    crossDiagonalGradient(sf, texture, data);
+    crossDiagonalGradient(sf, texture);
     break;
   default:
     printf("unhandled gradient\n");
   }
 
+  pixel32 *data = sf.pixelData();
+  pixel32 current;
+  
   if (texture.relief() == RenderTexture::Flat && texture.border()) {
     r = texture.borderColor().red();
     g = texture.borderColor().green();
@@ -122,21 +123,20 @@ void TrueRenderControl::drawGradientBackground(
     }
   }
 
-  reduceDepth(im, data);
+  reduceDepth(sf, im);
 
   im->data = (char*) data;
 
   sf.setPixmap(im);
 
-  delete [] im->data;
   im->data = NULL;
   XDestroyImage(im);
 }
 
 void TrueRenderControl::verticalGradient(Surface &sf,
-                                         const RenderTexture &texture,
-                                         pixel32 *data) const
+                                         const RenderTexture &texture) const
 {
+  pixel32 *data = sf.pixelData();
   pixel32 current;
   float dr, dg, db;
   unsigned int r,g,b;
@@ -164,9 +164,9 @@ void TrueRenderControl::verticalGradient(Surface &sf,
 }
 
 void TrueRenderControl::diagonalGradient(Surface &sf,
-                                         const RenderTexture &texture,
-                                         pixel32 *data) const
+                                         const RenderTexture &texture) const
 {
+  pixel32 *data = sf.pixelData();
   pixel32 current;
   float drx, dgx, dbx, dry, dgy, dby;
   unsigned int r,g,b;
@@ -196,10 +196,10 @@ void TrueRenderControl::diagonalGradient(Surface &sf,
   }
 }
 
-void TrueRenderControl::crossDiagonalGradient(Surface &sf,
-                                              const RenderTexture &texture,
-                                              pixel32 *data) const
+void TrueRenderControl::crossDiagonalGradient(
+  Surface &sf, const RenderTexture &texture) const
 {
+  pixel32 *data = sf.pixelData();
   pixel32 current;
   float drx, dgx, dbx, dry, dgy, dby;
   unsigned int r,g,b;
@@ -229,11 +229,12 @@ void TrueRenderControl::crossDiagonalGradient(Surface &sf,
   }
 }
 
-void TrueRenderControl::reduceDepth(XImage *im, pixel32 *data) const
+void TrueRenderControl::reduceDepth(Surface &sf, XImage *im) const
 {
 // since pixel32 is the largest possible pixel size, we can share the array
   int r, g, b;
   int x,y;
+  pixel32 *data = sf.pixelData();
   pixel16 *p = (pixel16*) data;
   switch (im->bits_per_pixel) {
   case 32:

otk/truerendercontrol.hh

@@ -4,30 +4,10 @@
 
 #include "rendercontrol.hh"
 
-extern "C" {
-
-#ifdef HAVE_STDINT_H
-#  include <stdint.h>
-#else
-#  ifdef HAVE_SYS_TYPES_H
-#    include <sys/types.h>
-#  endif
-#endif
-
-}
-
 #include <vector>
 
 namespace otk {
 
-#ifdef HAVE_STDINT_H
-typedef uint32_t pixel32;
-typedef uint16_t pixel16;
-#else
-typedef u_int32_t pixel32;
-typedef u_int16_t pixel16;
-#endif /* HAVE_STDINT_H */
-
 #ifdef WORDS_BIGENDIAN
 const int default_red_shift=0;
 const int default_green_shift=8;
@@ -54,13 +34,10 @@ private:
   int _blue_offset;
 
   inline void highlight(pixel32 *x, pixel32 *y, bool raised) const;
-  void reduceDepth(XImage *im, pixel32 *data) const;
-  void verticalGradient(Surface &sf, const RenderTexture &texture,
-                        pixel32 *data) const;
-  void diagonalGradient(Surface &sf, const RenderTexture &texture,
-                        pixel32 *data) const;
-  void crossDiagonalGradient(Surface &sf, const RenderTexture &texture,
-                        pixel32 *data) const;
+  void reduceDepth(Surface &sf, XImage *im) const;
+  void verticalGradient(Surface &sf, const RenderTexture &texture) const;
+  void diagonalGradient(Surface &sf, const RenderTexture &texture) const;
+  void crossDiagonalGradient(Surface &sf, const RenderTexture &texture) const;
   virtual void drawGradientBackground(Surface &sf,
                                       const RenderTexture &texture) const;