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//----------------------------------------------------------------------------
// Anti-Grain Geometry - Version 2.4
// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
//
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
//----------------------------------------------------------------------------
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://www.antigrain.com
//----------------------------------------------------------------------------
//
// Function render_ctrl
//
//----------------------------------------------------------------------------
#ifndef AGG_CTRL_INCLUDED
#define AGG_CTRL_INCLUDED
#include "agg_trans_affine.h"
#include "agg_renderer_scanline.h"
namespace agg
{
//--------------------------------------------------------------------ctrl
class ctrl
{
public:
//--------------------------------------------------------------------
virtual ~ctrl() {}
ctrl(double x1, double y1, double x2, double y2, bool flip_y) :
m_x1(x1), m_y1(y1), m_x2(x2), m_y2(y2),
m_flip_y(flip_y),
m_mtx(0)
{
}
//--------------------------------------------------------------------
virtual bool in_rect(double x, double y) const = 0;
virtual bool on_mouse_button_down(double x, double y) = 0;
virtual bool on_mouse_button_up(double x, double y) = 0;
virtual bool on_mouse_move(double x, double y, bool button_flag) = 0;
virtual bool on_arrow_keys(bool left, bool right, bool down, bool up) = 0;
//--------------------------------------------------------------------
void transform(const trans_affine& mtx) { m_mtx = &mtx; }
void no_transform() { m_mtx = 0; }
//--------------------------------------------------------------------
void transform_xy(double* x, double* y) const
{
if(m_flip_y) *y = m_y1 + m_y2 - *y;
if(m_mtx) m_mtx->transform(x, y);
}
//--------------------------------------------------------------------
void inverse_transform_xy(double* x, double* y) const
{
if(m_mtx) m_mtx->inverse_transform(x, y);
if(m_flip_y) *y = m_y1 + m_y2 - *y;
}
//--------------------------------------------------------------------
double scale() const { return m_mtx ? m_mtx->scale() : 1.0; }
private:
ctrl(const ctrl&);
const ctrl& operator = (const ctrl&);
protected:
double m_x1;
double m_y1;
double m_x2;
double m_y2;
private:
bool m_flip_y;
const trans_affine* m_mtx;
};
//--------------------------------------------------------------------
template<class Rasterizer, class Scanline, class Renderer, class Ctrl>
void render_ctrl(Rasterizer& ras, Scanline& sl, Renderer& r, Ctrl& c)
{
unsigned i;
for(i = 0; i < c.num_paths(); i++)
{
ras.reset();
ras.add_path(c, i);
render_scanlines_aa_solid(ras, sl, r, c.color(i));
}
}
//--------------------------------------------------------------------
template<class Rasterizer, class Scanline, class Renderer, class Ctrl>
void render_ctrl_rs(Rasterizer& ras, Scanline& sl, Renderer& r, Ctrl& c)
{
unsigned i;
for(i = 0; i < c.num_paths(); i++)
{
ras.reset();
ras.add_path(c, i);
r.color(c.color(i));
render_scanlines(ras, sl, r);
}
}
}
#endif
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