lyx_mirror/src/frontends/xforms/XPainter.h

// -*- C++ -*-
/**
 * \file XPainter.h
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author unknown
 * \author John Levon
 *
 * Full author contact details are available in file CREDITS.
 */

#ifndef XPAINTER_H
#define XPAINTER_H

#include "frontends/Painter.h"

#include <X11/Xlib.h>

class LyXFont;

namespace lyx {
namespace frontend {

class XWorkArea;

/**
 * XPainter - a painter implementation for Xlib
 */
class XPainter : public Painter {
public:
	XPainter(XWorkArea &);

	/// 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 void line(
		int x1, int y1,
		int x2, int y2,
		LColor_color,
		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 void lines(
		int const * xp,
		int const * yp,
		int np,
		LColor_color,
		line_style = line_solid,
		line_width = line_thin);

	/// draw a rectangle
	virtual void rectangle(
		int x, int y,
		int w, int h,
		LColor_color,
		line_style = line_solid,
		line_width = line_thin);

	/// draw a filled rectangle
	virtual void fillRectangle(
		int x, int y,
		int w, int h,
		LColor_color);

	/// draw a filled (irregular) polygon
	virtual void fillPolygon(
		int const * xp,
		int const * yp,
		int np,
		LColor_color);

	/// draw an arc
	virtual void arc(
		int x, int y,
		unsigned int w, unsigned int h,
		int a1, int a2,
		LColor_color);

	/// draw a pixel
	virtual void point(
		int x, int y,
		LColor_color);

	/// draw an image from the image cache
	virtual void image(int x, int y,
		int w, int h,
		graphics::Image const & image);

	/// draw a string at position x, y (y is the baseline)
	virtual void text(int x, int y,
		std::string const & str, LyXFont const & f);

	/** Draw a string at position x, y (y is the baseline)
	 *  This is just for fast drawing
	 */
	virtual void 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 void text(int x, int y,
		char c, LyXFont const & f);

	/// draw a wide string at position x, y
	void text(int x, int y,
		XChar2b const * str, size_t l,
		LyXFont const & f);

private:
	/// our owner who we paint upon
	XWorkArea & owner_;
};

} // namespace frontend
} // namespace lyx

#endif // XPAINTER_H