/*
* Copyright (C) 2009,2010,2011 Samuel Audet
*
* This file is part of ProCamTracker.
*
* ProCamTracker 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.
*
* ProCamTracker 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 ProCamTracker. If not, see <http://www.gnu.org/licenses/>.
*/
package com.googlecode.javacv.procamtracker;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import com.googlecode.javacv.cpp.opencv_core.IplImage;
/**
*
* @author Samuel Audet
*/
public class Chronometer {
Chronometer(Rectangle roi) {
this(roi, -1);
}
Chronometer(Rectangle roi, long startTime) {
this.roi = (Rectangle)roi.clone();
this.startTime = startTime;
this.chronoImage = new BufferedImage(roi.width, roi.height, BufferedImage.TYPE_3BYTE_BGR);
this.chronoGraphics = (Graphics2D)chronoImage.getGraphics();
Font bigFont, smallFont;
FontMetrics bigFontMetrics;
Rectangle2D bounds;
int fontSize = 10;
do {
bigFont = new Font("Sans", Font.BOLD, fontSize);
smallFont = new Font("Sans", Font.BOLD, fontSize*9/10);
bigFontMetrics = chronoGraphics.getFontMetrics(bigFont);
bounds = bigFontMetrics.getStringBounds("0′00″0", chronoGraphics);
fontSize += 1;
} while (bounds.getWidth()*1.1 < roi.width && bounds.getHeight()*1.1 < roi.height);
this.bigFont = bigFont;
this.smallFont = smallFont;
this.bigFontMetrics = bigFontMetrics;
this.bounds = bounds;
chronoGraphics.setBackground(Color.WHITE);
chronoGraphics.setColor(Color.BLACK);
chronoGraphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
}
private Rectangle roi;
private long startTime;
private BufferedImage chronoImage;
private Graphics2D chronoGraphics;
private Font bigFont, smallFont;
private FontMetrics bigFontMetrics;
private Rectangle2D bounds;
public void draw(IplImage image) {
long time;
if (startTime < 0) {
startTime = System.currentTimeMillis();
time = 0;
} else {
time = System.currentTimeMillis() - startTime;
}
long minutes = time/1000/60;
long seconds = time/1000 - minutes*60;
long deciseconds = time/100 - seconds*10 - minutes*600;
chronoGraphics.clearRect(0, 0, chronoImage.getWidth(), chronoImage.getHeight());
chronoGraphics.setFont(bigFont);
int x = (int)((roi.width -bounds.getWidth ())/2 - bounds.getX()),
y = (int)((roi.height-bounds.getHeight())/2 - bounds.getY());
chronoGraphics.drawString(""+minutes, x, y); x+=bigFontMetrics.stringWidth("0");
chronoGraphics.drawString("′", x, y); x+=bigFontMetrics.stringWidth("′");
chronoGraphics.drawString((seconds < 10 ?
"0" : "") + seconds, x, y); x+=bigFontMetrics.stringWidth("00");
chronoGraphics.drawString("″", x, y); x+=bigFontMetrics.stringWidth("″");
chronoGraphics.setFont(smallFont);
chronoGraphics.drawString(""+deciseconds, x, y);
if (roi.x < 0) {
roi.x += image.width();
}
if (roi.y < 0) {
roi.y += image.height();
}
image.copyFrom(chronoImage, 1.0, roi);
}
}