FbTk::ImageControl Class Reference Holds screen info, color tables and caches textures. More... #include <ImageControl.hh> Inheritance diagram for FbTk::ImageControl: List of all members. Public Member Functions   ImageControl (int screen_num, bool dither=false, int colors_per_channel=4, unsigned long cache_timeout=300000l, unsigned long cache_max=200l) bool  doDither () const int  bitsPerPixel () const int  depth () const int  colorsPerChannel () const int  screenNum () const Visual *  visual () const unsigned long  getSqrt (unsigned int val) const Pixmap  renderImage (unsigned int width, unsigned int height, const FbTk::Texture &src_texture) void  installRootColormap () void  removeImage (Pixmap thepix) void  colorTables (const unsigned char **, const unsigned char **, const unsigned char **, int *, int *, int *, int *, int *, int *) const void  getXColorTable (XColor **, int *) void  getGradientBuffers (unsigned int, unsigned int, unsigned int **, unsigned int **) void  setDither (bool d) void  setColorsPerChannel (int cpc) void  cleanCache () Detailed Description Holds screen info, color tables and caches textures. Definition at line 42 of file ImageControl.hh. Member Function Documentation Pixmap FbTk::ImageControl::renderImage (  unsigned int  width, unsigned int  height, const FbTk::Texture &  src_texture )    Render to pixmap Parameters: width  width of pixmap height  height of pixmap src_texture  texture type to render Returns: pixmap of the rendered image, on failure None Definition at line 203 of file ImageControl.cc. References FbTk::Texture::color(), FbTk::Texture::colorTo(), FbTk::FbPixmap::drawable(), FbTk::Color::pixel(), FbTk::Texture::pixmap(), FbTk::TextureRender::render(), and FbTk::Texture::type(). { if (texture.type() & FbTk::Texture::PARENTRELATIVE) return ParentRelative; // search cache first Pixmap pixmap = searchCache(width, height, texture); if (pixmap) { return pixmap; // return cache item } // render new image TextureRender image(*this, width, height, m_colors, m_num_colors); pixmap = image.render(texture); if (pixmap) { // create new cache item and add it to cache list Cache *tmp = new Cache; tmp->pixmap = pixmap; tmp->texture_pixmap = texture.pixmap().drawable(); tmp->width = width; tmp->height = height; tmp->count = 1; tmp->texture = texture.type(); tmp->pixel1 = texture.color().pixel(); if (texture.type() & FbTk::Texture::GRADIENT) tmp->pixel2 = texture.colorTo().pixel(); else tmp->pixel2 = 0l; cache.push_back(tmp); if ((unsigned) cache.size() > cache_max) cleanCache(); return pixmap; } return None; } The documentation for this class was generated from the following files: ImageControl.hh ImageControl.cc Fluxbox CVS-Jan-2003
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