| Line | Hits | Source |
|---|---|---|
| 1 | /******************************************************************************* | |
| 2 | * InternetCafe is a software solution that helps the management of Cybercafes | |
| 3 | * according with the ITALIAN DECREE LAW ON ANTI-TERROR MEASURES, 27 JULY 2005. | |
| 4 | * Copyright (C) 2006 Guido Angelo Ingenito | |
| 5 | ||
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License | |
| 8 | * as published by the Free Software Foundation; either version 2 | |
| 9 | * of the License, or (at your option) any later version. | |
| 10 | ||
| 11 | * This program is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | * GNU General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with this program; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
| 19 | *******************************************************************************/ | |
| 20 | package ui.panel; | |
| 21 | ||
| 22 | import java.awt.Color; | |
| 23 | import java.awt.Dimension; | |
| 24 | import java.awt.Graphics; | |
| 25 | import java.awt.Graphics2D; | |
| 26 | import java.awt.image.BufferedImage; | |
| 27 | ||
| 28 | import javax.swing.JPanel; | |
| 29 | ||
| 30 | @SuppressWarnings("serial") //$NON-NLS-1$ | |
| 31 | public class ImageDrawPanel extends JPanel { | |
| 32 | 0 | private double zoom = 1.0; |
| 33 | ||
| 34 | private double zoomPercentage; | |
| 35 | ||
| 36 | private BufferedImage image; | |
| 37 | ||
| 38 | /** | |
| 39 | * Constructor | |
| 40 | * | |
| 41 | * @param image | |
| 42 | * @param zoomPercentage | |
| 43 | */ | |
| 44 | 0 | public ImageDrawPanel(BufferedImage image, double zoomPercentage) { |
| 45 | 0 | this.image = image; |
| 46 | 0 | this.zoomPercentage = zoomPercentage / 100; |
| 47 | 0 | } |
| 48 | ||
| 49 | /** | |
| 50 | * This method is overriden to draw the image and scale the graphics | |
| 51 | * accordingly | |
| 52 | */ | |
| 53 | public void paintComponent(Graphics grp) { | |
| 54 | ||
| 55 | 0 | Graphics2D g2D = (Graphics2D) grp; |
| 56 | ||
| 57 | // set the background color to white | |
| 58 | 0 | g2D.setColor(Color.WHITE); |
| 59 | // fill the rect | |
| 60 | 0 | g2D.fillRect(0, 0, getWidth(), getHeight()); |
| 61 | ||
| 62 | // scale the graphics to get the zoom effect | |
| 63 | 0 | g2D.scale(zoom, zoom); |
| 64 | ||
| 65 | // can't draw the image if it is null | |
| 66 | 0 | if (image == null) |
| 67 | 0 | return; |
| 68 | ||
| 69 | // draw the image | |
| 70 | 0 | g2D.drawImage(image, 0, 0, this); |
| 71 | 0 | } |
| 72 | ||
| 73 | /** | |
| 74 | * This method is overriden to return the preferred size which will be the | |
| 75 | * width and height of the image plus the zoomed width width and height. | |
| 76 | * while zooming out the zoomed width and height is negative | |
| 77 | */ | |
| 78 | public Dimension getPreferredSize() { | |
| 79 | 0 | if (image == null) |
| 80 | 0 | return super.getPreferredSize(); |
| 81 | 0 | return new Dimension( |
| 82 | 0 | (int) (image.getWidth(this) + (image.getWidth(this) * (zoom - 1))), |
| 83 | 0 | (int) (image.getHeight(this) + (image.getHeight(this) * (zoom - 1)))); |
| 84 | } | |
| 85 | ||
| 86 | /** | |
| 87 | * Sets the new zoomed percentage | |
| 88 | * | |
| 89 | * @param zoomPercentage | |
| 90 | */ | |
| 91 | public void setZoomPercentage(int zoomPercentage) { | |
| 92 | 0 | this.zoomPercentage = ((double) zoomPercentage) / 100; |
| 93 | 0 | } |
| 94 | ||
| 95 | /** | |
| 96 | * This method set the image to the original size by setting the zoom factor | |
| 97 | * to 1. i.e. 100% | |
| 98 | */ | |
| 99 | public void originalSize() { | |
| 100 | 0 | zoom = 1; |
| 101 | 0 | } |
| 102 | ||
| 103 | /** | |
| 104 | * This method increments the zoom factor with the zoom percentage, to | |
| 105 | * create the zoom in effect | |
| 106 | */ | |
| 107 | public void zoomIn() { | |
| 108 | 0 | zoom += zoomPercentage; |
| 109 | 0 | } |
| 110 | ||
| 111 | /** | |
| 112 | * This method decrements the zoom factor with the zoom percentage, to | |
| 113 | * create the zoom out effect | |
| 114 | */ | |
| 115 | public void zoomOut() { | |
| 116 | 0 | zoom -= zoomPercentage; |
| 117 | ||
| 118 | 0 | if (zoom < zoomPercentage) { |
| 119 | 0 | if (zoomPercentage > 1.0) { |
| 120 | 0 | zoom = 1.0; |
| 121 | 0 | } else { |
| 122 | 0 | zoomIn(); |
| 123 | } | |
| 124 | } | |
| 125 | 0 | } |
| 126 | ||
| 127 | /** | |
| 128 | * This method returns the currently zoomed percentage | |
| 129 | * | |
| 130 | * @return The currently zoomed percentage. | |
| 131 | */ | |
| 132 | public double getZoomedTo() { | |
| 133 | 0 | return zoom * 100; |
| 134 | } | |
| 135 | ||
| 136 | /** | |
| 137 | * @return Returns the image. | |
| 138 | */ | |
| 139 | public BufferedImage getImage() { | |
| 140 | 0 | return image; |
| 141 | } | |
| 142 | ||
| 143 | /** | |
| 144 | * This method will set the current displayed image. If the panel was | |
| 145 | * already in use with another image the zoom factor will be setted to 100%, | |
| 146 | * the original size. | |
| 147 | * | |
| 148 | * @param image | |
| 149 | * The image to set. | |
| 150 | */ | |
| 151 | public void setImage(BufferedImage image) { | |
| 152 | 0 | this.image = image; |
| 153 | 0 | originalSize(); |
| 154 | 0 | } |
| 155 | ||
| 156 | } |
|
this report was generated by version 1.0.5 of jcoverage. |
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