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/* Copyright (C) 2005 The cairomm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __CAIROMM_PATTERN_H
#define __CAIROMM_PATTERN_H
#include <cairomm/surface.h>
#include <cairomm/enums.h>
#include <cairo/cairo.h>
namespace Cairo
{
typedef cairo_extend_t Extend;
typedef cairo_filter_t Filter;
/**
* This is a reference-counted object. The copy constructor creates a second reference to the object, instead
* of creating an independent copy of the object.
*/
class Pattern
{
public:
//Use derived constructors.
/** Create a C++ wrapper for the C instance.
* @param cobject The C instance.
* @param has_reference Whether we already have a reference. Otherwise, the constructor will take an extra reference.
*/
explicit Pattern(cairo_pattern_t* cobject, bool has_reference = false);
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
Pattern(const Pattern& src);
//TODO?: Pattern(cairo_pattern_t *target);
virtual ~Pattern();
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
Pattern& operator=(const Pattern& src);
void set_matrix(const cairo_matrix_t &matrix);
void get_matrix(cairo_matrix_t &matrix) const;
typedef cairo_pattern_t cobject;
inline cobject* cobj() { return m_cobject; }
inline const cobject* cobj() const { return m_cobject; }
#ifndef DOXYGEN_IGNORE_THIS
///For use only by the cairomm implementation.
inline Status get_status() const
{ return cairo_pattern_status(const_cast<cairo_pattern_t*>(cobj())); }
#endif //DOXYGEN_IGNORE_THIS
protected:
//Used by derived types only.
Pattern();
cobject* m_cobject;
};
class SolidPattern : public Pattern
{
public:
static SolidPattern create_rgb(double red, double green, double blue);
static SolidPattern create_rgba(double red, double green, double blue, double alpha);
/** Create a C++ wrapper for the C instance.
* @param cobject The C instance.
* @param has_reference Whether we already have a reference. Otherwise, the constructor will take an extra reference.
*/
explicit SolidPattern(cairo_pattern_t* cobject, bool has_reference = false);
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
SolidPattern(const SolidPattern& src);
//TODO?: SolidPattern(cairo_pattern_t *target);
virtual ~SolidPattern();
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
SolidPattern& operator=(const SolidPattern& src);
};
class SurfacePattern : public Pattern
{
public:
explicit SurfacePattern(Surface& surface);
/** Create a C++ wrapper for the C instance.
* @param cobject The C instance.
* @param has_reference Whether we already have a reference. Otherwise, the constructor will take an extra reference.
*/
explicit SurfacePattern(cairo_pattern_t* cobject, bool has_reference = false);
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
SurfacePattern(const SurfacePattern& src);
//TODO?: SurfacePattern(cairo_pattern_t *target);
virtual ~SurfacePattern();
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
SurfacePattern& operator=(const SurfacePattern& src);
void set_extend(Extend extend);
Extend get_extend() const;
void set_filter(Filter filter);
Filter get_filter() const;
};
class Gradient : public Pattern
{
public:
//Use derived constructors.
/** Create a C++ wrapper for the C instance.
* @param cobject The C instance.
* @param has_reference Whether we already have a reference. Otherwise, the constructor will take an extra reference.
*/
explicit Gradient(cairo_pattern_t* cobject, bool has_reference = false);
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
Gradient(const Gradient& src);
//TODO?: Gradient(cairo_pattern_t *target);
virtual ~Gradient();
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
Gradient& operator=(const Gradient& src);
void add_color_stop_rgb(double offset, double red, double green, double blue);
void add_color_stop_rgba(double offset, double red, double green, double blue, double alpha);
protected:
Gradient();
};
class LinearGradient : public Gradient
{
public:
LinearGradient(double x0, double y0, double x1, double y1);
/** Create a C++ wrapper for the C instance.
* @param cobject The C instance.
* @param has_reference Whether we already have a reference. Otherwise, the constructor will take an extra reference.
*/
explicit LinearGradient(cairo_pattern_t* cobject, bool has_reference = false);
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
LinearGradient(const LinearGradient& src);
//TODO?: LinearGradient(cairo_pattern_t *target);
virtual ~LinearGradient();
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
LinearGradient& operator=(const LinearGradient& src);
};
class RadialGradient : public Gradient
{
public:
RadialGradient(double cx0, double cy0, double radius0, double cx1, double cy1, double radius1);
/** Create a C++ wrapper for the C instance.
* @param cobject The C instance.
* @param has_reference Whether we already have a reference. Otherwise, the constructor will take an extra reference.
*/
explicit RadialGradient(cairo_pattern_t* cobject, bool has_reference = false);
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
RadialGradient(const RadialGradient& src);
//TODO?: RadialGradient(cairo_pattern_t *target);
virtual ~RadialGradient();
/** Create a second reference to the Pattern.
* Changing this instance will change the original instance.
*/
RadialGradient& operator=(const RadialGradient& src);
};
} // namespace Cairo
#endif //__CAIROMM_PATTERN_H
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