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/*
   ui/button.cc
   This file is part of the Osirion project and is distributed under
   the terms of the GNU General Public License version 2
*/

#include <cmath>

#include "audio/audio.h"
#include "auxiliary/functions.h"
#include "core/application.h"
#include "core/commandbuffer.h"
#include "sys/sys.h"
#include "ui/ui.h"
#include "ui/paint.h"
#include "ui/button.h"

namespace ui
{

Button::Button(Widget *parent, const char *text, const char *command) : Label(parent, text)
{
	set_label("button");
	set_command(command);
	set_alignment(AlignCenter);
	set_background(true);
}

Button::~Button()
{
}

void Button::print(const size_t indent) const
{
	std::string marker("");
	con_print << aux::pad_left(marker, indent*2) << label() << " \"" << text() << "\" \"" << command() << "\"" << std::endl;
}

void Button::set_command(const char *command)
{
	if (command)
		button_command.assign(command);
	else
		button_command.clear();
}

void Button::set_command(const std::string &command)
{
	button_command.assign(command);
}

void Button::draw_background()
{
	Paint::draw_material(global_location(), size(), "ui/button");
}

void Button::draw_border()
{
	if (disabled()) {
		Paint::set_color(palette()->disabled());
	} else if (has_mouse_focus()) {
		math::Color color(palette()->foreground());
		float t = core::application()->time();
		t = t - floorf(t);
		if (t > 0.5)
			t = 1 - t;
		color.a = 0.5f + t;
		Paint::set_color(color);
	} else {
		Paint::set_color(palette()->border());
	}

	Paint::draw_border(global_location(), size());
}

void Button::draw()
{
	if (!text().size())
		return;

	if (disabled()) {
		Paint::set_color(palette()->disabled());
	} else if (has_mouse_focus()) {
		Paint::set_color(palette()->highlight());
	} else {
		Paint::set_color(palette()->foreground());
	}
	
	Paint::draw_label(global_location(), size(), font(), text(), alignment());
	
	if (enabled() && has_mouse_focus()) {
		root()->set_pointer("action", Palette::Highlight);
	}
}

bool Button::on_keypress(const int key, const unsigned int modifier)
{
	if (key == 512 + SDL_BUTTON_LEFT) {
		if (enabled()) {
			if (button_command.size()) {
				core::cmd() << button_command << std::endl;
			}
			audio::play("ui/clicked");
		
			emit(EventButtonClicked);
		}
		return true;
	}

	return false;
}

bool Button::on_keyrelease(const int key, const unsigned int modifier)
{
	return false;
}

void Button::on_mouseover(const math::Vector2f &cursor)
{
	if (enabled()) {
		//audio::play("ui/select");
	}
}

}