// ImageControl.hh for FbTk - Fluxbox Toolkit // Copyright (c) 2001 - 2003 Henrik Kinnunen (fluxbox at users.sourceforge.net) // // from Image.hh for Blackbox - an X11 Window manager // Copyright (c) 1997 - 2000 Brad Hughes (bhughes at tcac.net) // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. #ifndef FBTK_IMAGECONTROL_HH #define FBTK_IMAGECONTROL_HH #include "Orientation.hh" #include "Timer.hh" #include "NotCopyable.hh" #include <X11/Xlib.h> // for Visual* etc #include <list> namespace FbTk { class Texture; /// Holds screen info, color tables and caches textures class ImageControl: private NotCopyable { public: ImageControl(int screen_num, int colors_per_channel = 4, unsigned long cache_timeout = 300000l, unsigned long cache_max = 200l); virtual ~ImageControl(); int depth() const { return m_screen_depth; } int colorsPerChannel() const { return m_colors_per_channel; } int screenNumber() const { return m_screen_num; } Visual *visual() const { return m_visual; } unsigned long getSqrt(unsigned int val) const; /** Render to pixmap @param width width of pixmap @param height height of pixmap @param src_texture texture type to render @param orient Orientation of the texture. @param use_cache whether or not to use cache @return pixmap of the rendered image, on failure None */ Pixmap renderImage(unsigned int width, unsigned int height, const FbTk::Texture &src_texture, Orientation orient = ROT0, bool use_cache = true); 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 getGradientBuffers(unsigned int, unsigned int, unsigned int **, unsigned int **); void cleanCache(); private: /** Search cache for a specific pixmap @return None if no cache was found */ Pixmap searchCache(unsigned int width, unsigned int height, const Texture &text, Orientation orient) const; void createColorTable(); bool m_dither; Timer m_timer; Colormap m_colormap; Window m_root_window; XColor *m_colors; ///< color table unsigned int m_num_colors; ///< number of colors in color table Visual *m_visual; int bits_per_pixel, red_offset, green_offset, blue_offset, red_bits, green_bits, blue_bits; int m_colors_per_channel; ///< number of colors per channel int m_screen_depth; ///< bit depth of screen int m_screen_num; ///< screen number unsigned char red_color_table[256]; unsigned char green_color_table[256]; unsigned char blue_color_table[256]; unsigned int *grad_xbuffer, *grad_ybuffer, grad_buffer_width, grad_buffer_height; struct Cache; typedef std::list<Cache *> CacheList; mutable CacheList cache; unsigned long cache_max; }; } // end namespace FbTk #endif // FBTK_IMAGECONTROL_HH