/*
 * CINELERRA
 * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include "mbuttons.h"
#include "mwindow.h"
#include "mwindowgui.h"
#include "mainsession.h"
#include "videowindow.h"
#include "videowindowgui.h"



#define CROPHANDLE_W xS(10)
#define CROPHANDLE_H yS(10)

VideoWindowGUI::VideoWindowGUI(VideoWindow *thread, int w, int h)
 : BC_Window(_(PROGRAM_NAME ": Video out"),
	(int)BC_INFINITY, (int)BC_INFINITY,
	w, h, xS(10), yS(10), 1, 1, 1)
{
	this->thread = thread;
}

VideoWindowGUI::~VideoWindowGUI()
{
}

void VideoWindowGUI::create_objects()
{
	lock_window("VideoWindowGUI::create_objects");
	add_subwindow(canvas = new VideoWindowCanvas(this, get_w(), get_h()));
	update_title();
	unlock_window();
}

int VideoWindowGUI::keypress_event()
{
}

int VideoWindowGUI::resize_event(int w, int h)
{
// 	int output_w = thread->mwindow->session->output_w;
// 	int output_h = thread->mwindow->session->output_h;
// 	int new_w, new_h, full_w, full_h;
//
// 	new_w = w;
// 	new_h = h;
// 	thread->get_full_sizes(full_w, full_h);
//
// 	if(labs(full_w - new_w) < xS(50))
// 	{
// 		new_w = full_w;
// 		new_h = full_h;
// 	}
// 	else
// 		thread->fix_size(new_w, new_h, w, thread->mwindow->get_aspect_ratio());
//
// 	if(new_w < xS(10)) new_w = xS(10);
// 	if(new_h < yS(10)) new_h = yS(10);
// 	w = thread->video_window_w = new_w;
// 	h = new_h;
//
// 	resize_window(w, h);
// 	canvas->reposition_window(0, 0, w, h);
// 	update_title();
// 	if(thread->video_cropping) canvas->draw_crop_box();
}

int VideoWindowGUI::update_title()
{
// 	char string[1024];
//
// 	if(thread->mwindow->get_aspect_ratio() > (float)thread->mwindow->session->output_w / thread->mwindow->session->output_h)
// 	{
// 		sprintf(string, PROGRAM_NAME ": Video out %d%%",
// 			(int)((float)thread->video_window_w / (thread->mwindow->session->output_h * thread->mwindow->get_aspect_ratio()) * 100 + 0.5));
// 	}
// 	else
// 	{
// 		sprintf(string, PROGRAM_NAME ": Video out %d%%",
// 			(int)((float)thread->video_window_w / thread->mwindow->session->output_w * 100 + 0.5));
// 	}
//
// 	set_title(string);
}

int VideoWindowGUI::close_event()
{
	thread->hide_window();
}


VideoWindowCanvas::VideoWindowCanvas(VideoWindowGUI *gui, int w, int h)
 : BC_SubWindow(0, 0, w, h, BLACK)
{
	this->gui = gui;
	corner_selected = 0;
	button_down = 0;
}

VideoWindowCanvas::~VideoWindowCanvas()
{
}

int VideoWindowCanvas::button_press()
{
	if(gui->thread->video_cropping)
	{
		int x = get_cursor_x();
		int y = get_cursor_y();
		button_down = 1;

		if(x > gui->x1 && y > gui->y1 && x < gui->x1 + CROPHANDLE_W && y < gui->y1 + CROPHANDLE_H)
		{
			corner_selected = 1;
			gui->x_offset = x - gui->x1;
			gui->y_offset = y - gui->y1;
		}
		if(x > gui->x1 && y > gui->y2 - CROPHANDLE_H && x < gui->x1 + CROPHANDLE_W && y < gui->y2)
		{
			corner_selected = 2;
			gui->x_offset = x - gui->x1;
			gui->y_offset = y - gui->y2;
		}
		if(x > gui->x2 - CROPHANDLE_W && y > gui->y2 - CROPHANDLE_H && x < gui->x2 && y < gui->y2)
		{
			corner_selected = 3;
			gui->x_offset = x - gui->x2;
			gui->y_offset = y - gui->y2;
		}
		if(x > gui->x2 - CROPHANDLE_W && y > gui->y1 && x < gui->x2 && y < gui->y1 + CROPHANDLE_H)
		{
			corner_selected = 4;
			gui->x_offset = x - gui->x2;
			gui->y_offset = y - gui->y1;
		}
	}
}

int VideoWindowCanvas::button_release()
{
	if(gui->thread->video_cropping && button_down)
	{
		button_down = 0;
		corner_selected = 0;
	}
}

int VideoWindowCanvas::cursor_motion()
{
	if(button_down && gui->thread->video_cropping && corner_selected)
	{
		int x = get_cursor_x();
		int y = get_cursor_y();
		draw_crop_box();

		switch(corner_selected)
		{
			case 1:
				gui->x1 = x - gui->x_offset;  gui->y1 = y - gui->y_offset;
				break;
			case 2:
				gui->x1 = x - gui->x_offset;  gui->y2 = y - gui->y_offset;
				break;
			case 3:
				gui->x2 = x - gui->x_offset;  gui->y2 = y - gui->y_offset;
				break;
			case 4:
				gui->x2 = x - gui->x_offset;  gui->y1 = y - gui->y_offset;
				break;
		};

		if(gui->x1 < 0) gui->x1 = 0;
		if(gui->y1 < 0) gui->y1 = 0;
		if(gui->x1 > get_w()) gui->x1 = get_w();
		if(gui->y1 > get_h()) gui->y1 = get_h();
		if(gui->x2 < 0) gui->x2 = 0;
		if(gui->y2 < 0) gui->y2 = 0;
		if(gui->x2 > get_w()) gui->x2 = get_w();
		if(gui->y2 > get_h()) gui->y2 = get_h();
		draw_crop_box();
		flash();
	}
}

int VideoWindowCanvas::draw_crop_box()
{
	int w = gui->x2 - gui->x1;
	int h = gui->y2 - gui->y1;

	set_inverse();
	set_color(WHITE);
	draw_box(gui->x1 + 1, gui->y1 + 1, CROPHANDLE_W - 1, CROPHANDLE_H - 1);
	draw_box(gui->x1 + 1, gui->y2 - CROPHANDLE_H, CROPHANDLE_W - 1, CROPHANDLE_H);
	draw_box(gui->x2 - CROPHANDLE_W, gui->y2 - CROPHANDLE_H, CROPHANDLE_W, CROPHANDLE_H);
	draw_box(gui->x2 - CROPHANDLE_W, gui->y1 + 1, CROPHANDLE_W, CROPHANDLE_H - 1);
	draw_rectangle(gui->x1, gui->y1, w, h);
	set_opaque();
}