| 0,0 → 1,159 |
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| /* |
| * This file contains the ImagePanel class. |
| * |
| * Coded by: Group 5, software practice summer 2003 |
| * University of Bielefeld, Germany |
| * |
| * @version $Revision: 1.6 $ |
| * |
| * Last modification: $Date: 2003/07/15 22:23:20 $ |
| * $Id: ImagePanel.java,v 1.6 2003/07/15 22:23:20 ioklasse Exp $ |
| */ |
| |
| package src.plugins.regionEditorPlugin; |
| |
| import java.util.List; |
| |
| import java.awt.Color; |
| import java.awt.Rectangle; |
| import java.awt.Graphics; |
| import java.awt.Image; |
| |
| import javax.swing.JPanel; |
| |
| /** |
| * Image panel shows any images. |
| * |
| * @author Yulia Klassen, Viktoriya Zudova |
| */ |
| class ImagePanel extends JPanel |
| { |
| /** dx-shift of image according to the left top corner of plugin panel */ |
| private int dx; |
| /** dy-shift of image according to the left top corner of plugin panel */ |
| private int dy; |
| /** width of the image */ |
| private int imageWidth; |
| /** height of the image */ |
| private int imageHeight; |
| |
| private double coef; |
| |
| /** current image */ |
| private Image image; |
| |
| private List rects; |
| |
| private Rectangle selectedRect; |
| |
| /** constructor invokes JPanel to create all elements for options dialog */ |
| public ImagePanel(List rects) |
| { |
| super(true); |
| this.rects = rects; |
| } |
| |
| /** draws the image */ |
| public void paintComponent(Graphics g) |
| { |
| int w = getWidth(); |
| int h = getHeight(); |
| |
| // fill background |
| g.setColor(getBackground()); |
| g.fillRect(0, 0, w, h); |
| |
| if(image != null) |
| { |
| // calc size and position of the image |
| int iw = image.getWidth(null); |
| int ih = image.getHeight(null); |
| double kx = (double)iw/w; |
| double ky = (double)ih/h; |
| |
| coef = Math.max(kx, ky); |
| |
| if(coef < 1) { |
| coef = 1; |
| } |
| else { |
| iw = (int)(iw/coef); |
| ih = (int)(ih/coef); |
| } |
| |
| dx = (w-iw)/2; |
| dy = (h-ih)/2; |
| imageWidth = iw; |
| imageHeight = ih; |
| |
| // draw the image |
| g.drawImage(image, dx, dy, iw, ih, null); |
| |
| // draw rectanges |
| g.setColor(Color.black); |
| g.setXORMode(Color.white); |
| for(int i = 0; i < rects.size(); i++) { |
| Rectangle rect = (Rectangle)rects.get(i); |
| |
| if(rect != selectedRect) // the selected one will be drawn later |
| g.drawRect( |
| (int)(rect.getX() / coef) + dx, |
| (int)(rect.getY() / coef) + dy, |
| (int)(rect.getWidth() / coef), |
| (int)(rect.getHeight() / coef)); |
| } |
| |
| // draw the selected rect |
| if(selectedRect != null) { |
| g.setColor(Color.red); |
| g.drawRect( |
| (int)(selectedRect.getX() / coef) + dx, |
| (int)(selectedRect.getY() / coef) + dy, |
| (int)(selectedRect.getWidth() / coef), |
| (int)(selectedRect.getHeight() / coef)); |
| } |
| } |
| } |
| |
| /** sets the image */ |
| public void setImage(Image image) |
| { |
| this.image = image; |
| repaint(); |
| } |
| |
| public double getCoef() |
| { |
| return coef; |
| } |
| |
| /** returns dx-shift of image according to the left top corner of plugin panel */ |
| public int getDx() |
| { |
| return dx; |
| } |
| |
| /** returns dy-shift of image according to the left top corner of plugin panel */ |
| public int getDy() |
| { |
| return dy; |
| } |
| |
| /** returns width of the image */ |
| public int getImageWidth() |
| { |
| return imageWidth; |
| } |
| |
| /** returns height of the image */ |
| public int getImageHeight() |
| { |
| return imageHeight; |
| } |
| |
| public void setSelectedRect(Rectangle rect) |
| { |
| this.selectedRect = rect; |
| } |
| |
| } |
| Property changes: |
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| Added: svn:keywords |
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| +LastChangedDate LastChangedRevision LastChangedBy HeadURL Id |
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| \ No newline at end of property |
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