/*
* Created on 19 nov. 2004
* Created by Olivier Chalouhi
*
* Copyright (C) 2004, 2005, 2006 Aelitis SAS, All rights Reserved
*
* 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.
*
* 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 ( see the LICENSE file ).
*
* 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
*
* AELITIS, SAS au capital de 46,603.30 euros,
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*/
package org.gudy.azureus2.ui.swt.components.graphics;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Path;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.graphics.Region;
import org.gudy.azureus2.ui.swt.mainwindow.Colors;
/**
* @author Olivier Chalouhi
*
*/
public class PieUtils {
public static void drawPie(GC gc,int x, int y,int width,int height,int percent) {
Color background = gc.getBackground();
gc.setForeground(Colors.blue);
int angle = (percent * 360) / 100;
if(angle<4)
angle = 0; // workaround fillArc rendering bug
gc.setBackground(Colors.white);
gc.fillArc(x,y,width,height,0,360);
gc.setBackground(background);
gc.fillArc(x,y,width,height,90,angle*-1);
gc.drawOval(x , y , width-1, height-1);
}
public static void
drawPie(
GC gc,Image image, int x, int y,int width,int height,int percent, boolean draw_border )
{
Rectangle image_size = image.getBounds();
int width_pad = ( width - image_size.width )/2;
int height_pad = ( height - image_size.height )/2;
int angle = (percent * 360) / 100;
if(angle<4){
angle = 0; // workaround fillArc rendering bug
}
Region old_clipping = new Region();
gc.getClipping(old_clipping);
Path path_done = new Path(gc.getDevice());
path_done.addArc(x,y,width,height,90,-angle);
path_done.lineTo( x+width/2, y+height/2);
path_done.close();
gc.setClipping( path_done );
gc.drawImage(image, x+width_pad, y+height_pad+1);
Path path_undone = new Path(gc.getDevice());
path_undone.addArc(x,y,width,height,90-angle,angle-360);
path_undone.lineTo( x+width/2, y+height/2);
path_undone.close();
gc.setClipping( path_undone );
gc.setAlpha( 75 );
gc.drawImage(image, x+width_pad, y+height_pad+1);
gc.setAlpha( 255 );
gc.setClipping( old_clipping );
if ( draw_border ){
gc.setForeground(Colors.blue);
if ( percent == 100 ){
gc.drawOval(x , y , width-1, height-1);
}else{
if ( angle > 0 ){
gc.drawPath( path_done );
}
}
}
path_done.dispose();
path_undone.dispose();
old_clipping.dispose();
}
}