#include <X11/Xutil.h>
}
+#include "surface.hh"
+
namespace otk {
class ScreenInfo;
-class Widget;
+class RenderTexture;
+class Font;
+class RenderColor;
+class ustring;
+class PixmapMask;
class RenderControl {
protected:
- const ScreenInfo *_screen;
-
- // the number of bits (1-255) that each shade of color spans across. best
- // case is 1, which gives 255 shades
- int _red_bits;
- int _green_bits;
- int _blue_bits;
-
- // color tables, meaning, 256 (possibly) different shades of each color,
- // based on the number of bits there are available for each color in the
- // visual
- unsigned char _red_color_table[256];
- unsigned char _green_color_table[256];
- unsigned char _blue_color_table[256];
-
-/*
- Bool _dither;
-
- int _cpc; // colors-per-channel: must be a value between [2,6]
- int _bpp; // bits-per-pixel
-
- unsigned int *_grad_xbuffer;
- unsigned int *_grad_ybuffer;
- unsigned int _grad_buffer_width;
- unsigned int _grad_buffer_height;
-
- unsigned long *_sqrt_table;
-
- // These values are all determined based on a visual
+ int _screen;
- int _red_bits; // the number of bits (1-255) that each shade of color
- int _green_bits; // spans across. best case is 1, which gives 255 shades.
- int _blue_bits;
- unsigned char _red_color_table[256];
- unsigned char _green_color_table[256];
- unsigned char _blue_color_table[256];
+// bool _dither;
- // These are only used for TrueColor visuals
- int _red_offset; // the offset of each color in a color mask
- int _green_offset;
- int _blue_offset;
+ RenderControl(int screen);
- // These are only used for !TrueColor visuals
- XColor *_colors;
- int _ncolors;
-*/
+ inline void highlight(pixel32 *x, pixel32 *y, bool raised) 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;
+ virtual void drawSolidBackground(Surface& sf,
+ const RenderTexture& texture) const;
- RenderControl(const ScreenInfo *screen);
+ //! Reduces a Surface's Surface::pixelData so that it will display correctly
+ //! on the screen's depth
+ /*!
+ This function allocates and sets the im->data member. The allocated memory
+ will be freed when XDetroyImage is called on the XImage.
+ */
+ virtual void reduceDepth(Surface &sf, XImage *im) const = 0;
public:
virtual ~RenderControl();
static RenderControl *getRenderControl(int screen);
- virtual void render(Widget *wi) = 0;
+ //! Draws a background onto a Surface, as specified by a RenderTexture
+ /*!
+ This function will overwrite the entire surface.
+ */
+ virtual void drawBackground(Surface &sf,
+ const RenderTexture &texture) const;
+
+ //! Draws an image onto the surface
+ /*!
+ This function will overwrite the entire surface.<br>
+ The image must be specified in 32-bit packed ARGB format. The current
+ background will be used for applying the alpha.
+ */
+ virtual void drawImage(Surface &sf, int w, int h,
+ unsigned long *data) const;
+
+ //! Draws a string onto a Surface
+ virtual void drawString(Surface &sf, const Font &font, int x, int y,
+ const RenderColor &color,
+ const ustring &string) const;
+
+ //! Draws a PixmapMask with a specified color onto a Surface
+ virtual void drawMask(Surface &sf, const RenderColor &color,
+ const PixmapMask &mask) const;
+
+ virtual void allocateColor(XColor *color) const = 0;
};
}