cairo_borders.h

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#ifndef LITEHTML_CAIRO_BORDERS_H
#define LITEHTML_CAIRO_BORDERS_H
 
#include <cairo.h>
 
namespace cairo
{
    extern void add_path_arc(cairo_t* cr, double x, double y, double rx, double ry, double a1, double a2, bool neg);
    inline void set_color(cairo_t* cr, const litehtml::web_color& color)
    {
        cairo_set_source_rgba(cr, color.red / 255.0, color.green / 255.0, color.blue / 255.0, color.alpha / 255.0);
    }
 
    class border
    {
    public:
        enum real_side_t
        {
            left_side,
            top_side,
            right_side,
            bottom_side
        };
 
        real_side_t real_side;          
        litehtml::web_color color;
        litehtml::border_style style;
 
        int border_width;
        int top_border_width;
        int bottom_border_width;
 
        int radius_top_x;
        int radius_top_y;
        int radius_bottom_x;
        int radius_bottom_y;
 
        border(cairo_t* _cr, int _left, int _top, int _bottom) :
                real_side(left_side),
                color(),
                style(litehtml::border_style_none),
                border_width(0),
                top_border_width(0),
                bottom_border_width(0),
                radius_top_x(0),
                radius_top_y(0),
                radius_bottom_x(0),
                radius_bottom_y(0),
                cr(_cr), left(_left), top(_top), bottom(_bottom)
        {}
 
        void draw_border();
 
    private:
        cairo_t* cr;
        int left;
        int top;
        int bottom;
        void draw_line(double line_offset, double top_line_offset, double bottom_line_offset);
        void draw_solid();
        void draw_dotted();
        void draw_dashed();
        void draw_double();
        void draw_inset_outset(bool is_inset);
        void draw_groove_ridge(bool is_groove);
    };
}
 
#endif //LITEHTML_CAIRO_BORDERS_H