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#ifndef IMG_H |
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#define IMG_H |
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|
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#if HAVE_BG_PIXMAP && BG_IMAGE_FROM_FILE && ENABLE_TRANSPARENCY && HAVE_PIXBUF |
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#define HAVE_IMG 1 |
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#endif |
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|
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#if HAVE_IMG |
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|
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#define float_to_component(d) (uint16_t)((d) * 65535.99) |
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|
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#include <X11/extensions/Xrender.h> |
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|
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class rxvt_img |
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{ |
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void alloc (); |
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void destroy (); |
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Picture src_picture (); |
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|
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public: |
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// *could* also hold the Pixmap itself |
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struct pixref |
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{ |
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int cnt; |
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int w, h; |
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bool ours; // false if we don't own the pixmap at all |
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|
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pixref (int w, int h) |
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: cnt(1), w(w), h(h), ours(true) |
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{ |
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} |
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}; |
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|
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rxvt_screen *s; |
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Pixmap pm; |
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pixref *ref; // shared refcnt |
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int x, y, w, h, repeat; |
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XRenderPictFormat *format; |
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|
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rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat = RepeatNormal); |
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rxvt_img (const rxvt_img &img); |
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|
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static rxvt_img *new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb); // from pixbuf |
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static rxvt_img *new_from_file (rxvt_screen *s, const char *filename); // via pixbuf |
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static rxvt_img *new_from_root (rxvt_screen *s); // get root pixmap |
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|
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~rxvt_img (); |
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|
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Pixmap steal () |
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{ |
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ref->ours = false; |
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return pm; |
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} |
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|
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// inplace |
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void move (int dx, int dy) |
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{ |
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x -= dx; |
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y -= dy; |
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} |
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|
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void repeat_mode (int repeat) |
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{ |
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this->repeat = repeat; |
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} |
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|
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void unshare (); // prepare for write |
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void fill (const rxvt_color &c); |
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//void linear_gradient (const XLinearGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
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//void radial_gradient (const XRadialGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
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//void conical_gradient (const XConicalGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
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void brightness (uint16_t r, uint16_t g, uint16_t b, uint16_t a); |
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void contrast (uint16_t r, uint16_t g, uint16_t b, uint16_t a); |
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|
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void brightness (double r, double g, double b, double a = 1.) |
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{ |
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brightness (float_to_component (r), |
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float_to_component (g), |
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float_to_component (b), |
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float_to_component (a)); |
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} |
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|
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void contrast (double r, double g, double b, double a = 1.) |
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{ |
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contrast (float_to_component (r), |
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float_to_component (g), |
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float_to_component (b), |
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float_to_component (a)); |
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} |
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|
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// copy |
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rxvt_img *reify (); // make x, y 0, make real width/height |
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rxvt_img *blur (int rh, int rv); |
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rxvt_img *clone (); |
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rxvt_img *sub_rect (int x, int y, int width, int height); |
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rxvt_img *transform (int new_width, int new_height, double matrix[9]); |
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rxvt_img *scale (int new_width, int new_height); |
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rxvt_img *rotate (int new_width, int new_height, int x, int y, double phi); |
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rxvt_img *convert_format (XRenderPictFormat *format, const rxvt_color &bg); |
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rxvt_img *blend (rxvt_img *img, double factor); |
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|
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// egregiuous helper category |
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rxvt_img *replace (rxvt_img *&p) |
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{ |
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delete p; |
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p = this; |
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return this; |
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} |
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}; |
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|
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#endif |
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|
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#endif |
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