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#include <stdlib.h>
#include <ctype.h>
#include <stdio.h>
#include "agg_basics.h"
#include "agg_array.h"
#include "agg_rendering_buffer.h"
#include "agg_rasterizer_scanline_aa.h"
#include "agg_scanline_p.h"
#include "agg_scanline_u.h"
#include "agg_scanline_bin.h"
#include "agg_scanline_boolean_algebra.h"
#include "agg_scanline_storage_aa.h"
#include "agg_scanline_storage_bin.h"
#include "agg_renderer_scanline.h"
#include "agg_path_storage.h"
#include "agg_conv_transform.h"
#include "agg_ellipse.h"
#include "ctrl/agg_rbox_ctrl.h"
#include "ctrl/agg_cbox_ctrl.h"
#include "ctrl/agg_slider_ctrl.h"
#include "platform/agg_platform_support.h"
#include "interactive_polygon.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
#include "pixel_formats.h"
enum flip_y_e { flip_y = true };
void generate_circles(agg::path_storage& ps,
const double* quad,
unsigned num_circles,
double radius)
{
ps.remove_all();
unsigned i;
for(i = 0; i < 4; ++i)
{
unsigned n1 = i * 2;
unsigned n2 = (i < 3) ? i * 2 + 2 : 0;
unsigned j;
for(j = 0; j < num_circles; j++)
{
agg::ellipse ell(quad[n1] + (quad[n2] - quad[n1]) * j / num_circles,
quad[n1 + 1] + (quad[n2 + 1] - quad[n1 + 1]) * j / num_circles,
radius, radius, 100);
ps.concat_path(ell);
}
}
}
class the_application : public agg::platform_support
{
public:
typedef agg::renderer_base<pixfmt> renderer_base;
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_solid;
typedef agg::scanline_p8 scanline_type;
agg::interactive_polygon m_quad1;
agg::interactive_polygon m_quad2;
agg::rbox_ctrl<agg::rgba8> m_trans_type;
agg::cbox_ctrl<agg::rgba8> m_reset;
agg::slider_ctrl<agg::rgba8> m_mul1;
agg::slider_ctrl<agg::rgba8> m_mul2;
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_quad1(4, 5.0),
m_quad2(4, 5.0),
m_trans_type(420, 5.0, 420+130.0, 145.0, !flip_y),
m_reset (350, 5.0, "Reset", !flip_y),
m_mul1 (5.0, 5.0, 340.0, 12.0, !flip_y),
m_mul2 (5.0, 20.0, 340.0, 27.0, !flip_y)
{
m_trans_type.add_item("Union");
m_trans_type.add_item("Intersection");
m_trans_type.add_item("Linear XOR");
m_trans_type.add_item("Saddle XOR");
m_trans_type.add_item("Abs Diff XOR");
m_trans_type.add_item("A-B");
m_trans_type.add_item("B-A");
m_trans_type.cur_item(0);
add_ctrl(m_trans_type);
add_ctrl(m_reset);
add_ctrl(m_mul1);
add_ctrl(m_mul2);
m_mul1.value(1.0);
m_mul2.value(1.0);
m_mul1.label("Opacity1=%.3f");
m_mul2.label("Opacity2=%.3f");
}
virtual void on_init()
{
m_quad1.xn(0) = 50;
m_quad1.yn(0) = 200 - 20;
m_quad1.xn(1) = width() / 2 - 25;
m_quad1.yn(1) = 200;
m_quad1.xn(2) = width() / 2 - 25;
m_quad1.yn(2) = height() - 50 - 20;
m_quad1.xn(3) = 50;
m_quad1.yn(3) = height() - 50;
m_quad2.xn(0) = width() / 2 + 25;
m_quad2.yn(0) = 200 - 20;
m_quad2.xn(1) = width() - 50;
m_quad2.yn(1) = 200;
m_quad2.xn(2) = width() - 50;
m_quad2.yn(2) = height() - 50 - 20;
m_quad2.xn(3) = width() / 2 + 25;
m_quad2.yn(3) = height() - 50;
}
virtual void on_draw()
{
pixfmt pixf(rbuf_window());
renderer_base rb(pixf);
renderer_solid r(rb);
rb.clear(agg::rgba(1, 1, 1));
scanline_type sl;
agg::rasterizer_scanline_aa<> ras;
agg::rasterizer_scanline_aa<> ras1;
agg::rasterizer_scanline_aa<> ras2;
agg::sbool_op_e op = (agg::sbool_op_e)m_trans_type.cur_item();
ras1.gamma(agg::gamma_multiply(m_mul1.value()));
ras2.gamma(agg::gamma_multiply(m_mul2.value()));
ras.clip_box(0, 0, width(), height());
agg::path_storage ps1;
generate_circles(ps1, m_quad1.polygon(), 5, 20);
agg::path_storage ps2;
generate_circles(ps2, m_quad2.polygon(), 5, 20);
ras1.filling_rule(agg::fill_even_odd);
r.color(agg::rgba8(240, 255, 200, 100));
ras1.add_path(ps1);
agg::render_scanlines(ras1, sl, r);
r.color(agg::rgba8(255, 240, 240, 100));
ras2.add_path(ps2);
agg::render_scanlines(ras2, sl, r);
typedef agg::scanline_p8 sbool_scanline_type;
typedef agg::renderer_scanline_aa_solid<renderer_base> sbool_renderer_type;
sbool_scanline_type sl_result;
sbool_scanline_type sl1;
sbool_scanline_type sl2;
sbool_renderer_type sren(rb);
sren.color(agg::rgba8(0, 0, 0));
agg::sbool_combine_shapes_aa(op, ras1, ras2, sl1, sl2, sl_result, sren);
//--------------------------
// Render the "quad" tools and controls
r.color(agg::rgba(0, 0.3, 0.5, 0.6));
ras.add_path(m_quad1);
agg::render_scanlines(ras, sl, r);
ras.add_path(m_quad2);
agg::render_scanlines(ras, sl, r);
agg::render_ctrl(ras, sl, rb, m_trans_type);
agg::render_ctrl(ras, sl, rb, m_reset);
agg::render_ctrl(ras, sl, rb, m_mul1);
agg::render_ctrl(ras, sl, rb, m_mul2);
//--------------------------
}
virtual void on_mouse_button_down(int x, int y, unsigned flags)
{
if(flags & agg::mouse_left)
{
if(m_quad1.on_mouse_button_down(x, y) ||
m_quad2.on_mouse_button_down(x, y) )
{
force_redraw();
}
}
}
virtual void on_mouse_move(int x, int y, unsigned flags)
{
if(flags & agg::mouse_left)
{
if(m_quad1.on_mouse_move(x, y) ||
m_quad2.on_mouse_move(x, y) )
{
force_redraw();
}
}
if((flags & agg::mouse_left) == 0)
{
on_mouse_button_up(x, y, flags);
}
}
virtual void on_mouse_button_up(int x, int y, unsigned flags)
{
if(m_quad1.on_mouse_button_up(x, y) ||
m_quad2.on_mouse_button_up(x, y) )
{
force_redraw();
}
}
virtual void on_ctrl_change()
{
if(m_reset.status())
{
on_init();
m_reset.status(false);
force_redraw();
}
}
};
int agg_main(int argc, char* argv[])
{
the_application app(pix_format, flip_y);
app.caption("AGG Example. Scanline Boolean");
if(app.init(800, 600, agg::window_resize))
{
return app.run();
}
return 1;
}
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