lyx_mirror/src/frontends/qt2/QLPainter.h

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// -*- C++ -*-
/**
* \file QLPainter.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author John Levon
*
* Full author contact details are available in file CREDITS
*/
#ifndef QLPAINTER_H
#define QLPAINTER_H
#include "Painter.h"
#include "LString.h"
#include "LColor.h"
#include <boost/scoped_ptr.hpp>
class LyXFont;
class QWorkArea;
class QPainter;
class QString;
/**
* QLPainter - a painter implementation for Xlib
*/
class QLPainter : public Painter {
public:
QLPainter(QWorkArea &);
/// begin painting
virtual void start();
/// end painting
virtual void end();
/// return the width of the work area in pixels
virtual int paperWidth() const;
/// return the height of the work area in pixels
virtual int paperHeight() const;
/// draw a line from point to point
virtual Painter & line(
int x1, int y1,
int x2, int y2,
LColor::color = LColor::foreground,
line_style = line_solid,
line_width = line_thin);
/**
* lines - draw a set of lines
* @param xp array of points' x co-ords
* @param yp array of points' y co-ords
* @param np size of the points array
*/
virtual Painter & lines(
int const * xp,
int const * yp,
int np,
LColor::color = LColor::foreground,
line_style = line_solid,
line_width = line_thin);
/// draw a rectangle
virtual Painter & rectangle(
int x, int y,
int w, int h,
LColor::color = LColor::foreground,
line_style = line_solid,
line_width = line_thin);
/// draw a filled rectangle
virtual Painter & fillRectangle(
int x, int y,
int w, int h,
LColor::color);
/// draw a filled (irregular) polygon
virtual Painter & fillPolygon(
int const * xp,
int const * yp,
int np,
LColor::color = LColor::foreground);
/// draw an arc
virtual Painter & arc(
int x, int y,
unsigned int w, unsigned int h,
int a1, int a2,
LColor::color = LColor::foreground);
/// draw a pixel
virtual Painter & point(
int x, int y,
LColor::color = LColor::foreground);
/// draw an image from the image cache
virtual Painter & image(int x, int y,
int w, int h,
lyx::graphics::Image const & image);
/// draw a string at position x, y (y is the baseline)
virtual Painter & text(int x, int y,
string const & str, LyXFont const & f);
/** Draw a string at position x, y (y is the baseline)
* This is just for fast drawing
*/
virtual Painter & text(int x, int y,
char const * str, size_t l,
LyXFont const & f);
/// draw a char at position x, y (y is the baseline)
virtual Painter & text(int x, int y,
char c, LyXFont const & f);
private:
/// draw small caps text
void smallCapsText(int x, int y,
QString const & str, LyXFont const & f);
/// set pen parameters
QPainter & setPen(LColor::color c,
line_style ls = line_solid,
line_width lw = line_thin);
/// our owner who we paint upon
QWorkArea & owner_;
/// our qt painter
boost::scoped_ptr<QPainter> qp_;
/// recursion check
int paint_check_;
};
#endif // QLPAINTER_H