#include <iostream></iostream>

#include <utility></utility>

#include <gdkmm pixbuf.h=""></gdkmm>

#include <gtkmm hvbox.h=""></gtkmm>

#include <gtkmm image.h=""></gtkmm>

#include "generator.h"

#include "surface.h"

#include "mainwindow.h"

MainWindow::MainWindow():

	src_rect0   (new View::Point( Vector2(-10, -10) )),

	src_rect1   (new View::Point( Vector2( 10,  10) )),

	dst_rect0   (new View::Point( Vector2(-10, -10) )),

	dst_rect1   (new View::Point( Vector2( 10, -10) )),

	dst_rect2   (new View::Point( Vector2( 10,  10) )),

	dst_rect3   (new View::Point( Vector2(-10,  10) )),

	dst_bounds0 (new View::Point( Vector2(-20, -20) )),

	dst_bounds1 (new View::Point( Vector2( 20,  20) ))

{

	set_default_size(200, 200);

	Gtk::HBox *hbox = manage(new Gtk::HBox());

	hbox->set_homogeneous(true);

	src_view.points.push_back(src_rect0);

	src_view.points.push_back(src_rect1);

	src_view.signal_point_motion.connect(

		sigc::mem_fun(*this, &MainWindow::on_point_motion) );

	src_view.signal_point_changed.connect(

		sigc::mem_fun(*this, &MainWindow::on_point_changed) );

	src_view.signal_draw_view.connect(

		sigc::mem_fun(*this, &MainWindow::on_draw_src_view) );

	hbox->add(src_view);

	dst_view.points.push_back(dst_rect0);

	dst_view.points.push_back(dst_rect1);

	dst_view.points.push_back(dst_rect2);

	dst_view.points.push_back(dst_rect3);

	dst_view.points.push_back(dst_bounds0);

	dst_view.points.push_back(dst_bounds1);

	dst_view.signal_point_motion.connect(

		sigc::mem_fun(*this, &MainWindow::on_point_motion) );

	dst_view.signal_point_changed.connect(

		sigc::mem_fun(*this, &MainWindow::on_point_changed) );

	dst_view.signal_draw_view.connect(

		sigc::mem_fun(*this, &MainWindow::on_draw_dst_view) );

	hbox->add(dst_view);

	hbox->add(*manage(generator_demo()));

	add(*hbox);

	show_all();

}

Gtk::Widget*

MainWindow::generator_demo() {

	std::cout << "generator demo: generate" << std::endl;

	Generator generator;

	DataSurface surface(256, 256);

	generator.generate(surface, Vector2(0, 0), Vector2(16, 16));

	std::cout << "generator demo: convert" << std::endl;

	Glib::RefPtr<gdk::pixbuf> pixbuf = Gdk::Pixbuf::create(</gdk::pixbuf>

		Gdk::COLORSPACE_RGB, true, 8, surface.width(), surface.height() );

	guint8 *pixel = pixbuf->get_pixels();

	for(int r = 0; r < surface.height(); ++r) {

		Color *row = surface[r];

		for(int c = 0; c < surface.width(); ++c) {

			const Color &color = row[c];

			*(pixel++) = (guint8)(color.r*255.9);

			*(pixel++) = (guint8)(color.g*255.9);

			*(pixel++) = (guint8)(color.b*255.9);

			*(pixel++) = (guint8)(color.a*255.9);

		}

	}

	return new Gtk::Image(pixbuf);

}

void

MainWindow::on_point_motion(const View::PointPtr &/*point*/) {

	queue_draw();

}

void

MainWindow::on_point_changed(const View::PointPtr &/*point*/) {

}

void

MainWindow::on_draw_src_view(const Cairo::RefPtr<cairo::context> &context) {</cairo::context>

	const Real ps = src_view.get_pixel_size();

	context->save();

	context->move_to(src_rect0->position.x, src_rect0->position.y);

	context->line_to(src_rect0->position.x, src_rect1->position.y);

	context->line_to(src_rect1->position.x, src_rect1->position.y);

	context->line_to(src_rect1->position.x, src_rect0->position.y);

	context->close_path();

	context->set_line_width(ps);

	context->set_source_rgba(1, 1, 0, 0.5);

	context->stroke();

	context->restore();

}

void

MainWindow::on_draw_dst_view(const Cairo::RefPtr<cairo::context> &context) {</cairo::context>

	const Real ps = src_view.get_pixel_size();

	context->save();

	context->move_to(dst_rect0->position.x, dst_rect0->position.y);

	context->line_to(dst_rect1->position.x, dst_rect1->position.y);

	context->line_to(dst_rect2->position.x, dst_rect2->position.y);

	context->line_to(dst_rect3->position.x, dst_rect3->position.y);

	context->close_path();

	context->set_line_width(ps);

	context->set_source_rgba(1, 1, 0, 0.5);

	context->stroke();

	context->move_to(dst_bounds0->position.x, dst_bounds0->position.y);

	context->line_to(dst_bounds0->position.x, dst_bounds1->position.y);

	context->line_to(dst_bounds1->position.x, dst_bounds1->position.y);

	context->line_to(dst_bounds1->position.x, dst_bounds0->position.y);

	context->close_path();

	context->set_line_width(ps);

	context->set_source_rgba(1, 0, 0, 0.5);

	context->stroke();

	context->restore();

}