
/*
 * 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 "cropvideo.h"
#include "language.h"
#include "mainundo.h"
#include "mwindow.h"
#include "mainsession.h"
#include "tracks.h"
#include "videowindow.h"
#include "videowindowgui.h"




CropVideo::CropVideo(MWindow *mwindow)
 : BC_MenuItem(_("Crop Video...")), Thread()
{
	this->mwindow = mwindow;
}

CropVideo::~CropVideo()
{
}

int CropVideo::handle_event()
{
	start();
}

void CropVideo::run()
{
	float aspect_w, aspect_h;
	int result = 0;
	{
		mwindow->video_window->start_cropping();
		CropVideoWindow window(mwindow, this);
		window.create_objects();
		result = window.run_window();
		mwindow->video_window->get_aspect_ratio(aspect_w, aspect_h);
		mwindow->video_window->stop_cropping();
	}

	if(!result)
	{
		int offsets[4], dummy_dimension[4];
		dummy_dimension[0] = dummy_dimension[1] = dummy_dimension[2] = dummy_dimension[3] = 0;
		offsets[0] = -(mwindow->video_window->gui->x1 + mwindow->video_window->gui->x2 - mwindow->session->output_w) / 2;
		offsets[1] = -(mwindow->video_window->gui->y1 + mwindow->video_window->gui->y2 - mwindow->session->output_h) / 2;
		offsets[2] = offsets[3] = 0;
//		mwindow->undo->update_undo_edits(_("Crop"), 0);

		mwindow->tracks->scale_video(dummy_dimension, offsets, 0);
		mwindow->session->track_w = mwindow->video_window->gui->x2 - mwindow->video_window->gui->x1;
		mwindow->session->track_h = mwindow->video_window->gui->y2 - mwindow->video_window->gui->y1;
		mwindow->session->output_w = mwindow->video_window->gui->x2 - mwindow->video_window->gui->x1;
		mwindow->session->output_h = mwindow->video_window->gui->y2 - mwindow->video_window->gui->y1;
		mwindow->session->aspect_w = aspect_w;
		mwindow->session->aspect_h = aspect_h;
		mwindow->video_window->resize_window();
		mwindow->draw();
//		mwindow->undo->update_undo_edits();
		mwindow->session->changes_made = 1;
	}
	else
	{
	}
}

int CropVideo::load_defaults()
{
return 0;
}

int CropVideo::save_defaults()
{
return 0;
}

CropVideoWindow::CropVideoWindow(MWindow *mwindow, CropVideo *thread)
 : BC_Window(_(PROGRAM_NAME ": Crop"), xS(380), yS(75), 0, 0)
{
	this->mwindow = mwindow;
	this->thread = thread;
}

CropVideoWindow::~CropVideoWindow()
{
}

void CropVideoWindow::create_objects()
{
	lock_window("CropVideoWindow::create_objects");
	int x = xS(10), y = yS(10);
	add_subwindow(new BC_Title(x, y, _("Select a region to crop in the video output window")));
	y += yS(30);
	add_subwindow(new BC_OKButton(x, y));
	x = get_w() - xS(100);
	add_subwindow(new BC_CancelButton(x, y));
	unlock_window();
}

