X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Ffrontends%2FPainter.h;h=17253b2f44dae76fb7d5eebcb55f01bd5d28eb51;hb=e20389ed6bb58d720aedc020e0257efd4742aec0;hp=7267839621b73f3f904f5c017a77a236eb430cb5;hpb=065db6806771190d12d37d64c4c86f9c5ebaf225;p=lyx.git diff --git a/src/frontends/Painter.h b/src/frontends/Painter.h index 7267839621..17253b2f44 100644 --- a/src/frontends/Painter.h +++ b/src/frontends/Painter.h @@ -14,9 +14,11 @@ #define PAINTER_H #include "support/strfwd.h" +#include "support/types.h" namespace lyx { +class Font; class FontInfo; namespace graphics { class Image; } @@ -36,12 +38,7 @@ namespace frontend { * * The intention for a toolkit is that it uses these methods to paint * onto a backing pixmap. Only when expose events arrive via the event - * queue (perhaps generated via Screen::expose), does the copy onto - * the actual WorkArea widget take place. Paints are wrapped in (possibly - * recursive) calls to start() and end() to facilitate the backing pixmap - * management. - * - * Note that the methods return *this for convenience. + * queue, does the copy onto the actual WorkArea widget take place. * * Caution: All char_type and docstring arguments of the text drawing * methods of this class are no UCS4 chars or strings if the font is a @@ -52,16 +49,25 @@ namespace frontend { */ class Painter { public: - Painter() : drawing_enabled_(true) {} + Painter(double pixel_ratio) : pixel_ratio_(pixel_ratio) {} - static const float thin_line; + static const int thin_line; /// possible line styles enum line_style { line_solid, //< solid line + line_solid_aliased, //< solid line, no anti-aliasing (used as a + // workaround to painting issues) line_onoffdash //< dashes with spaces }; + /// possible fill styles + enum fill_style { + fill_none, + fill_oddeven, + fill_winding + }; + /// possible character styles of preedit string. /// This is used for CJK input method support. enum preedit_style { @@ -74,7 +80,7 @@ public: /// draw a line from point to point virtual void line(int x1, int y1, int x2, int y2, Color, - line_style = line_solid, float line_width = thin_line) = 0; + line_style = line_solid, int line_width = thin_line) = 0; /** * lines - draw a set of lines @@ -83,11 +89,29 @@ public: * @param np size of the points array */ virtual void lines(int const * xp, int const * yp, int np, Color, - line_style = line_solid, float line_width = thin_line) = 0; + fill_style = fill_none, line_style = line_solid, + int line_width = thin_line) = 0; + + /** + * path - draw a path with bezier curves + * @param xp array of points' x co-ords + * @param yp array of points' y co-ords + * @param c1x array of first control points' x co-ords + * @param c1y array of first control points' y co-ords + * @param c2x array of second control points' x co-ords + * @param c2y array of second control points' y co-ords + * @param np size of the points array + */ + virtual void path(int const * xp, int const * yp, + int const * c1x, int const * c1y, + int const * c2x, int const * c2y, + int np, Color, + fill_style = fill_none, line_style = line_solid, + int line_width = thin_line) = 0; /// draw a rectangle virtual void rectangle(int x, int y, int w, int h, Color, - line_style = line_solid, float line_width = thin_line) = 0; + line_style = line_solid, int line_width = thin_line) = 0; /// draw a filled rectangle virtual void fillRectangle(int x, int y, int w, int h, Color) = 0; @@ -99,32 +123,36 @@ public: /// draw a pixel virtual void point(int x, int y, Color) = 0; - /// draw a filled rectangle with the shape of a 3D button - virtual void button(int x, int y, int w, int h, bool mouseHover) = 0; - /// draw an image from the image cache virtual void image(int x, int y, int w, int h, graphics::Image const & image) = 0; - /// draw a string at position x, y (y is the baseline) - /** - * \return the width of the drawn text. - */ - virtual int text(int x, int y, docstring const & str, FontInfo const & f) = 0; + /// draw a string at position x, y (y is the baseline). + virtual void text(int x, int y, docstring const & str, FontInfo const & f) = 0; - void setDrawingEnabled(bool drawing_enabled) - { drawing_enabled_ = drawing_enabled; } + /// draw a char at position x, y (y is the baseline) + virtual void text(int x, int y, char_type c, FontInfo const & f) = 0; - /// Indicate wether real screen drawing shall be done or not. - bool isDrawingEnabled() const { return drawing_enabled_; } + /** draw a string at position x, y (y is the baseline). The + * text direction is enforced by the \c Font. + */ + virtual void text(int x, int y, docstring const & str, Font const & f, + double wordspacing, double textwidth) = 0; - /// draw a char at position x, y (y is the baseline) - /** - * \return the width of the drawn text. - */ - virtual int text(int x, int y, char_type c, FontInfo const & f) = 0; + /** draw a string at position x, y (y is the baseline), but + * make sure that the part between \c from and \c to is in + * \c other color. The text direction is enforced by the \c Font. + */ + virtual void text(int x, int y, docstring const & str, Font const & f, + Color other, size_type from, size_type to, + double wordspacing, double textwidth) = 0; + + // Returns true if the painter does not actually paint. + virtual bool isNull() const = 0; + + double pixelRatio() const { return pixel_ratio_; } - /// draw the underbar, strikeout, uuline and uwave font attributes + /// draw the underbar, strikeout, xout, uuline and uwave font attributes virtual void textDecoration(FontInfo const & f, int x, int y, int width) = 0; /** @@ -138,22 +166,22 @@ public: /// draw a string and enclose it inside a button frame virtual void buttonText(int x, int baseline, docstring const & s, - FontInfo const & font, bool mouseHover) = 0; + FontInfo const & font, Color back, Color frame, int offset) = 0; /// draw a character of a preedit string for cjk support. virtual int preeditText(int x, int y, char_type c, FontInfo const & f, preedit_style style) = 0; /// start monochrome painting mode, i.e. map every color into [min,max] - virtual void enterMonochromeMode(Color const & min, + virtual void enterMonochromeMode(Color const & min, Color const & max) = 0; /// leave monochrome painting mode virtual void leaveMonochromeMode() = 0; /// draws a wavy line that can be used for underlining. virtual void wavyHorizontalLine(int x, int y, int width, ColorCode col) = 0; private: - /// - bool drawing_enabled_; + /// Ratio between physical pixels and device-independent pixels + double pixel_ratio_; }; } // namespace frontend