#ifndef PAINTER_H
#define PAINTER_H
-#include "Color.h"
-
#include "support/strfwd.h"
+#include "support/types.h"
namespace lyx {
+class Font;
class FontInfo;
namespace graphics { class Image; }
*
* 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
*/
class Painter {
public:
- Painter() : drawing_enabled_(true) {}
- /// possible line widths
- enum line_width {
- line_thin, //< thin line
- line_thick //< thick line
- };
+ Painter(double pixel_ratio) : drawing_enabled_(true), pixel_ratio_(pixel_ratio) {}
+
+ 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 {
/// draw a line from point to point
virtual void line(int x1, int y1, int x2, int y2, Color,
- line_style = line_solid, line_width = line_thin) = 0;
+ line_style = line_solid, int line_width = thin_line) = 0;
/**
* lines - draw a set of lines
* @param np size of the points array
*/
virtual void lines(int const * xp, int const * yp, int np, Color,
- line_style = line_solid, line_width = line_thin) = 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, line_width = line_thin) = 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;
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;
+
+ /// 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;
+
+ /** 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 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;
void setDrawingEnabled(bool drawing_enabled)
{ drawing_enabled_ = drawing_enabled; }
/// Indicate wether real screen drawing shall be done or not.
bool isDrawingEnabled() const { return drawing_enabled_; }
- /// 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;
+ double pixelRatio() const { return pixel_ratio_; }
+
+ /// draw the underbar, strikeout, uuline and uwave font attributes
+ virtual void textDecoration(FontInfo const & f, int x, int y, int width) = 0;
/**
* Draw a string and enclose it inside a rectangle. If
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
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