/*
 * 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 "bcresources.h"
#include "bctitle.h"
#include "bcresources.h"
#include <string.h>
#include <unistd.h>

BC_Title::BC_Title(int x,
		int y,
		const char *text,
		int font,
		int color,
		int centered,
		int fixed_w)
 : BC_SubWindow(x, y, -1, -1, -1)
{
	this->font = font;
	if(color < 0)
		this->color = get_resources()->default_text_color;
	else
		this->color = color;
	this->centered = centered;
	this->fixed_w = fixed_w;
	strcpy(this->text, text);
}

BC_Title::~BC_Title()
{
}


int BC_Title::initialize()
{
	if(w <= 0 || h <= 0)
		get_size(this, font, text, fixed_w, w, h);

	if(centered) x -= w / 2;

	BC_SubWindow::initialize();
	draw(0);
	show_window(0);
	return 0;
}

int BC_Title::set_color(int color)
{
	this->color = color;
	draw(0);
	return 0;
}

int BC_Title::resize(int w, int h)
{
	resize_window(w, h);
	draw(0);
	return 0;
}

int BC_Title::reposition(int x, int y)
{
	reposition_window(x, y, w, h);
	draw(0);
	return 0;
}


int BC_Title::update(const char *text, int flush)
{
	int new_w, new_h;

	strcpy(this->text, text);
	get_size(this, font, text, fixed_w, new_w, new_h);
	if(new_w > w || new_h > h)
	{
		resize_window(new_w, new_h);
	}
	draw(flush);
	return 0;
}

void BC_Title::update(float value)
{
	char string[BCTEXTLEN];
	sprintf(string, "%.04f", value);
	update(string);
}

char* BC_Title::get_text()
{
	return text;
}

int BC_Title::draw(int flush)
{
	int i, j, x, y;

// Fix background for block fonts.
// This should eventually be included in a BC_WindowBase::is_blocked_font()

 	if(font == MEDIUM_7SEGMENT)
 	{
		//leave it up to the theme to decide if we need a background or not.
		if (top_level->get_resources()->draw_clock_background) {
			BC_WindowBase::set_color(get_bg_color());
			draw_box(0, 0, w, h);
		}
 	}
	else
 		draw_top_background(parent_window, 0, 0, w, h);

	set_font(font);
	BC_WindowBase::set_color(color);
	int text_len = strlen(text);
	j = 0;  x = 0;  y = get_text_ascent(font);
	for(i = 0; i <= text_len; i++)
	{
		if(text[i] == '\n' || text[i] == 0)
		{
			if(centered)
			{
				draw_center_text(get_w() / 2,
					y,
					&text[j],
					i - j);
				j = i + 1;
			}
			else
			{
				draw_text(x,
					y,
					&text[j],
					i - j);
				j = i + 1;
			}
			y += get_text_height(font);
		}
	}
	set_font(MEDIUMFONT);    // reset
	flash(flush);
	return 0;
}

int BC_Title::calculate_w(BC_WindowBase *gui, const char *text, int font)
{
	int temp_w, temp_h;
	get_size(gui, font, text, 0, temp_w, temp_h);
	return temp_w;
}

int BC_Title::calculate_h(BC_WindowBase *gui, const char *text, int font)
{
	int temp_w, temp_h;
	get_size(gui, font, text, 0, temp_w, temp_h);
	return temp_h;
}



void BC_Title::get_size(BC_WindowBase *gui, int font, const char *text, int fixed_w, int &w, int &h)
{
	int i, j;
	w = 0;
	h = 0;
	j = 0;

	int text_len = strlen(text);
	for(i = 0; i <= text_len; i++)
	{
		int line_w = 0;
		if(text[i] == '\n')
		{
			h++;
			line_w = gui->get_text_width(font, &text[j], i - j);
			j = i + 1;
		}
		else
		if(text[i] == 0)
		{
			h++;
			line_w = gui->get_text_width(font, &text[j]);
		}
		if(line_w > w) w = line_w;
	}

	h *= gui->get_text_height(font);
	w += 5;
	if(fixed_w > 0) w = fixed_w;
}