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#include <stdlib.h>
#include <ctype.h>
#include <stdio.h>
#include "agg_basics.h"
#include "agg_rendering_buffer.h"
#include "agg_rasterizer_scanline_aa.h"
#include "agg_scanline_p.h"
#include "agg_renderer_scanline.h"
#include "agg_path_storage.h"
#include "agg_conv_transform.h"
#include "agg_trans_warp_magnifier.h"
#include "agg_conv_segmentator.h"
#include "agg_bounding_rect.h"
#include "ctrl/agg_slider_ctrl.h"
#include "ctrl/agg_cbox_ctrl.h"
#include "platform/agg_platform_support.h"
#define AGG_BGR24
//#define AGG_RGB24
//#define AGG_BGRA32
//#define AGG_RGBA32
//#define AGG_ARGB32
//#define AGG_ABGR32
//#define AGG_RGB565
//#define AGG_RGB555
//#define AGG_RGB_AAA
#include "pixel_formats.h"
enum flip_y_e { flip_y = true };
agg::rasterizer_scanline_aa<> g_rasterizer;
agg::scanline_p8 g_scanline;
agg::path_storage g_path;
agg::rgba8 g_colors[100];
unsigned g_path_idx[100];
unsigned g_npaths = 0;
double g_x1 = 0;
double g_y1 = 0;
double g_x2 = 0;
double g_y2 = 0;
double g_base_dx = 0;
double g_base_dy = 0;
double g_angle = 0;
double g_scale = 1.0;
double g_skew_x = 0;
double g_skew_y = 0;
int g_nclick = 0;
unsigned parse_lion(agg::path_storage& ps, agg::rgba8* colors, unsigned* path_idx);
void parse_lion()
{
g_npaths = parse_lion(g_path, g_colors, g_path_idx);
agg::pod_array_adaptor<unsigned> path_idx(g_path_idx, 100);
agg::bounding_rect(g_path, path_idx, 0, g_npaths, &g_x1, &g_y1, &g_x2, &g_y2);
g_base_dx = (g_x2 - g_x1) / 2.0;
g_base_dy = (g_y2 - g_y1) / 2.0;
}
class the_application : public agg::platform_support
{
agg::slider_ctrl<agg::rgba8> m_magn_slider;
agg::slider_ctrl<agg::rgba8> m_radius_slider;
public:
typedef agg::renderer_base<pixfmt> renderer_base;
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_solid;
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_magn_slider (5, 5, 495, 12, !flip_y),
m_radius_slider(5, 20, 495, 27, !flip_y)
{
parse_lion();
add_ctrl(m_magn_slider);
m_magn_slider.no_transform();
m_magn_slider.range(0.01, 4.0);
m_magn_slider.value(3.0);
m_magn_slider.label("Scale=%3.2f");
add_ctrl(m_radius_slider);
m_radius_slider.no_transform();
m_radius_slider.range(0.0, 100.0);
m_radius_slider.value(70.0);
m_radius_slider.label("Radius=%3.2f");
}
virtual void on_init()
{
g_x1 = 200;
g_y1 = 150;
}
virtual void on_resize(int cx, int cy)
{
}
virtual void on_draw()
{
pixfmt pixf(rbuf_window());
renderer_base rb(pixf);
renderer_solid r(rb);
rb.clear(agg::rgba(1, 1, 1));
agg::trans_warp_magnifier lens;
lens.center(g_x1, g_y1);
lens.magnification(m_magn_slider.value());
lens.radius(m_radius_slider.value() / m_magn_slider.value());
agg::conv_segmentator<agg::path_storage> segm(g_path);
agg::trans_affine mtx;
mtx *= agg::trans_affine_translation(-g_base_dx, -g_base_dy);
mtx *= agg::trans_affine_rotation(g_angle + agg::pi);
mtx *= agg::trans_affine_translation(width()/2, height()/2);
agg::conv_transform<
agg::conv_segmentator<
agg::path_storage> > trans_mtx(segm, mtx);
agg::conv_transform<
agg::conv_transform<
agg::conv_segmentator<
agg::path_storage> >, agg::trans_warp_magnifier> trans_lens(trans_mtx, lens);
agg::render_all_paths(g_rasterizer, g_scanline, r, trans_lens, g_colors, g_path_idx, g_npaths);
agg::render_ctrl(g_rasterizer, g_scanline, rb, m_magn_slider);
agg::render_ctrl(g_rasterizer, g_scanline, rb, m_radius_slider);
// Testing inverse_transform()
//--------------------
//double x, y;
//for(y = 0; y < height(); y += 10)
//{
// for(x = 0; x < height(); x += 10)
// {
// double x2 = x+0.5;
// double y2 = y+0.5;
// lens.transform(&x2, &y2);
// lens.inverse_transform(&x2, &y2);
// agg::ellipse e(x2, y2, 1, 1);
// g_rasterizer.add_path(e);
// r.color(agg::rgba8(0,0,0));
// agg::render_scanlines(g_rasterizer, g_scanline, r);
// }
//}
}
virtual void on_mouse_button_down(int x, int y, unsigned flags)
{
if(flags & agg::mouse_left)
{
g_x1 = x;
g_y1 = y;
force_redraw();
}
if(flags & agg::mouse_right)
{
g_x2 = x;
g_y2 = y;
force_redraw();
}
}
virtual void on_mouse_move(int x, int y, unsigned flags)
{
on_mouse_button_down(x, y, flags);
}
};
int agg_main(int argc, char* argv[])
{
the_application app(pix_format, flip_y);
app.caption("AGG Example. Lion");
if(app.init(500, 600, agg::window_resize))
{
return app.run();
}
return 1;
}
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