1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.layer.geoimage;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.awt.Color;
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7 | import java.awt.Dimension;
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8 | import java.awt.FontMetrics;
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9 | import java.awt.Graphics;
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10 | import java.awt.Graphics2D;
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11 | import java.awt.Image;
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12 | import java.awt.Point;
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13 | import java.awt.Rectangle;
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14 | import java.awt.RenderingHints;
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15 | import java.awt.event.ComponentEvent;
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16 | import java.awt.event.MouseAdapter;
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17 | import java.awt.event.MouseEvent;
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18 | import java.awt.event.MouseWheelEvent;
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19 | import java.awt.geom.Rectangle2D;
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20 | import java.awt.image.BufferedImage;
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21 | import java.io.IOException;
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22 | import java.util.Objects;
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23 | import java.util.concurrent.Future;
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24 |
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25 | import javax.swing.JComponent;
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26 | import javax.swing.SwingUtilities;
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27 |
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28 | import org.openstreetmap.josm.data.imagery.street_level.IImageEntry;
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29 | import org.openstreetmap.josm.data.imagery.street_level.Projections;
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30 | import org.openstreetmap.josm.data.preferences.BooleanProperty;
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31 | import org.openstreetmap.josm.data.preferences.DoubleProperty;
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32 | import org.openstreetmap.josm.data.preferences.IntegerProperty;
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33 | import org.openstreetmap.josm.gui.MainApplication;
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34 | import org.openstreetmap.josm.gui.layer.AbstractMapViewPaintable;
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35 | import org.openstreetmap.josm.gui.layer.geoimage.viewers.projections.IImageViewer;
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36 | import org.openstreetmap.josm.gui.layer.geoimage.viewers.projections.ImageProjectionRegistry;
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37 | import org.openstreetmap.josm.gui.layer.imagery.ImageryFilterSettings;
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38 | import org.openstreetmap.josm.gui.layer.imagery.ImageryFilterSettings.FilterChangeListener;
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39 | import org.openstreetmap.josm.gui.util.GuiHelper;
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40 | import org.openstreetmap.josm.gui.util.imagery.Vector3D;
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41 | import org.openstreetmap.josm.spi.preferences.Config;
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42 | import org.openstreetmap.josm.spi.preferences.PreferenceChangeEvent;
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43 | import org.openstreetmap.josm.spi.preferences.PreferenceChangedListener;
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44 | import org.openstreetmap.josm.tools.Destroyable;
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45 | import org.openstreetmap.josm.tools.ImageProcessor;
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46 | import org.openstreetmap.josm.tools.JosmRuntimeException;
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47 | import org.openstreetmap.josm.tools.Logging;
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48 | import org.openstreetmap.josm.tools.Utils;
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49 |
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50 | /**
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51 | * GUI component to display an image (photograph).
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52 | *
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53 | * Offers basic mouse interaction (zoom, drag) and on-screen text.
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54 | * @since 2566
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55 | */
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56 | public class ImageDisplay extends JComponent implements Destroyable, PreferenceChangedListener, FilterChangeListener {
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57 |
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58 | /** The current image viewer */
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59 | private IImageViewer iImageViewer;
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60 |
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61 | /** The file that is currently displayed */
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62 | private IImageEntry<?> entry;
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63 |
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64 | /** The previous file that is currently displayed. Cleared on paint. Only used to help improve UI error information. */
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65 | private IImageEntry<?> oldEntry;
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66 |
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67 | /** The image currently displayed */
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68 | private transient BufferedImage image;
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69 |
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70 | /** The image currently displayed after applying {@link #imageProcessor} */
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71 | private transient BufferedImage processedImage;
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72 |
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73 | /**
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74 | * Process the image before it is being displayed
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75 | */
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76 | private final ImageProcessor imageProcessor;
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77 |
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78 | /** The image currently displayed */
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79 | private boolean errorLoading;
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80 |
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81 | /** The rectangle (in image coordinates) of the image that is visible. This rectangle is calculated
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82 | * each time the zoom is modified */
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83 | private VisRect visibleRect;
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84 |
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85 | /** When a selection is done, the rectangle of the selection (in image coordinates) */
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86 | private VisRect selectedRect;
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87 |
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88 | private final ImgDisplayMouseListener imgMouseListener = new ImgDisplayMouseListener();
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89 |
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90 | private String emptyText;
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91 | private String osdText;
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92 |
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93 | private static final BooleanProperty AGPIFO_STYLE =
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94 | new BooleanProperty("geoimage.agpifo-style-drag-and-zoom", false);
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95 | private static int dragButton;
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96 | private static int zoomButton;
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97 |
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98 | /** Alternative to mouse wheel zoom; esp. handy if no mouse wheel is present **/
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99 | private static final BooleanProperty ZOOM_ON_CLICK =
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100 | new BooleanProperty("geoimage.use-mouse-clicks-to-zoom", true);
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101 |
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102 | /** Zoom factor when click or wheel zooming **/
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103 | private static final DoubleProperty ZOOM_STEP =
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104 | new DoubleProperty("geoimage.zoom-step-factor", 3 / 2.0);
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105 |
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106 | /** Maximum zoom allowed **/
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107 | private static final DoubleProperty MAX_ZOOM =
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108 | new DoubleProperty("geoimage.maximum-zoom-scale", 2.0);
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109 |
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110 | /** Maximum width (in pixels) for loading images **/
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111 | private static final IntegerProperty MAX_WIDTH =
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112 | new IntegerProperty("geoimage.maximum-width", 6000);
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113 |
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114 | /** Show a background for the error text (may be hard on eyes) */
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115 | private static final BooleanProperty ERROR_MESSAGE_BACKGROUND = new BooleanProperty("geoimage.message.error.background", false);
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116 |
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117 | private UpdateImageThread updateImageThreadInstance;
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118 |
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119 | private boolean destroyed;
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120 |
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121 | private final class UpdateImageThread extends Thread {
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122 | private boolean restart;
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123 |
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124 | @SuppressWarnings("DoNotCall") // we are calling `run` from the thread we want it to be running on (aka recursive)
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125 | @Override
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126 | public void run() {
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127 | updateProcessedImage();
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128 | if (restart) {
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129 | restart = false;
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130 | run();
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131 | }
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132 | }
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133 |
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134 | public void restart() {
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135 | restart = true;
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136 | if (!isAlive()) {
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137 | restart = false;
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138 | updateImageThreadInstance = new UpdateImageThread();
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139 | updateImageThreadInstance.start();
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140 | }
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141 | }
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142 | }
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143 |
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144 | @Override
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145 | public void preferenceChanged(PreferenceChangeEvent e) {
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146 | if (e == null ||
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147 | e.getKey().equals(AGPIFO_STYLE.getKey())) {
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148 | dragButton = Boolean.TRUE.equals(AGPIFO_STYLE.get()) ? 1 : 3;
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149 | zoomButton = dragButton == 1 ? 3 : 1;
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150 | }
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151 | }
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152 |
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153 | /**
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154 | * Manage the visible rectangle of an image with full bounds stored in init.
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155 | * @since 13127
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156 | */
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157 | public static class VisRect extends Rectangle {
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158 | private final Rectangle init;
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159 |
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160 | /** set when this {@code VisRect} is updated by a mouse drag operation and
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161 | * unset on mouse release **/
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162 | public boolean isDragUpdate;
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163 |
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164 | /**
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165 | * Constructs a new {@code VisRect}.
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166 | * @param x the specified X coordinate
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167 | * @param y the specified Y coordinate
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168 | * @param width the width of the rectangle
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169 | * @param height the height of the rectangle
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170 | */
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171 | public VisRect(int x, int y, int width, int height) {
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172 | super(x, y, width, height);
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173 | init = new Rectangle(this);
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174 | }
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175 |
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176 | /**
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177 | * Constructs a new {@code VisRect}.
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178 | * @param x the specified X coordinate
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179 | * @param y the specified Y coordinate
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180 | * @param width the width of the rectangle
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181 | * @param height the height of the rectangle
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182 | * @param peer share full bounds with this peer {@code VisRect}
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183 | */
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184 | public VisRect(int x, int y, int width, int height, VisRect peer) {
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185 | super(x, y, width, height);
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186 | init = peer.init;
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187 | }
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188 |
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189 | /**
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190 | * Constructs a new {@code VisRect} from another one.
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191 | * @param v rectangle to copy
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192 | */
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193 | public VisRect(VisRect v) {
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194 | super(v);
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195 | init = v.init;
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196 | }
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197 |
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198 | /**
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199 | * Constructs a new empty {@code VisRect}.
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200 | */
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201 | public VisRect() {
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202 | this(0, 0, 0, 0);
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203 | }
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204 |
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205 | public boolean isFullView() {
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206 | return init.equals(this);
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207 | }
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208 |
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209 | public boolean isFullView1D() {
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210 | return (init.x == x && init.width == width)
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211 | || (init.y == y && init.height == height);
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212 | }
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213 |
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214 | public void reset() {
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215 | setBounds(init);
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216 | }
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217 |
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218 | public void checkRectPos() {
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219 | if (x < 0) {
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220 | x = 0;
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221 | }
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222 | if (y < 0) {
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223 | y = 0;
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224 | }
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225 | if (x + width > init.width) {
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226 | x = init.width - width;
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227 | }
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228 | if (y + height > init.height) {
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229 | y = init.height - height;
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230 | }
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231 | }
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232 |
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233 | public void checkRectSize() {
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234 | if (width > init.width) {
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235 | width = init.width;
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236 | }
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237 | if (height > init.height) {
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238 | height = init.height;
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239 | }
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240 | }
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241 |
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242 | public void checkPointInside(Point p) {
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243 | if (p.x < x) {
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244 | p.x = x;
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245 | }
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246 | if (p.x > x + width) {
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247 | p.x = x + width;
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248 | }
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249 | if (p.y < y) {
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250 | p.y = y;
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251 | }
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252 | if (p.y > y + height) {
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253 | p.y = y + height;
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254 | }
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255 | }
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256 |
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257 | @Override
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258 | public int hashCode() {
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259 | return 31 * super.hashCode() + Objects.hash(init);
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260 | }
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261 |
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262 | @Override
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263 | public boolean equals(Object obj) {
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264 | if (this == obj)
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265 | return true;
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266 | if (!super.equals(obj) || getClass() != obj.getClass())
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267 | return false;
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268 | VisRect other = (VisRect) obj;
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269 | return Objects.equals(init, other.init);
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270 | }
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271 | }
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272 |
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273 | /** The thread that reads the images. */
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274 | protected class LoadImageRunnable implements Runnable {
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275 |
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276 | private final IImageEntry<?> entry;
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277 |
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278 | LoadImageRunnable(IImageEntry<?> entry) {
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279 | this.entry = entry;
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280 | }
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281 |
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282 | @Override
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283 | public void run() {
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284 | try {
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285 | Dimension target = new Dimension(MAX_WIDTH.get(), MAX_WIDTH.get());
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286 | BufferedImage img = entry.read(target);
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287 | if (img == null) {
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288 | synchronized (ImageDisplay.this) {
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289 | errorLoading = true;
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290 | ImageDisplay.this.repaint();
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291 | return;
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292 | }
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293 | }
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294 |
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295 | int width = img.getWidth();
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296 | int height = img.getHeight();
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297 | entry.setWidth(width);
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298 | entry.setHeight(height);
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299 |
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300 | synchronized (ImageDisplay.this) {
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301 | if (this.entry != ImageDisplay.this.entry) {
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302 | // The file has changed
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303 | return;
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304 | }
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305 |
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306 | ImageDisplay.this.image = img;
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307 | updateProcessedImage();
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308 | // This will clear the loading info box
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309 | ImageDisplay.this.oldEntry = ImageDisplay.this.entry;
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310 | visibleRect = getIImageViewer(entry).getDefaultVisibleRectangle(ImageDisplay.this, image);
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311 |
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312 | selectedRect = null;
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313 | errorLoading = false;
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314 | }
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315 | ImageDisplay.this.repaint();
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316 | } catch (IOException ex) {
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317 | Logging.error(ex);
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318 | }
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319 | }
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320 | }
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321 |
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322 | private final class ImgDisplayMouseListener extends MouseAdapter {
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323 |
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324 | private MouseEvent lastMouseEvent;
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325 | private Point mousePointInImg;
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326 |
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327 | private boolean mouseIsDragging(MouseEvent e) {
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328 | return (dragButton == 1 && SwingUtilities.isLeftMouseButton(e)) ||
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329 | (dragButton == 2 && SwingUtilities.isMiddleMouseButton(e)) ||
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330 | (dragButton == 3 && SwingUtilities.isRightMouseButton(e));
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331 | }
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332 |
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333 | private boolean mouseIsZoomSelecting(MouseEvent e) {
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334 | return (zoomButton == 1 && SwingUtilities.isLeftMouseButton(e)) ||
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335 | (zoomButton == 2 && SwingUtilities.isMiddleMouseButton(e)) ||
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336 | (zoomButton == 3 && SwingUtilities.isRightMouseButton(e));
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337 | }
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338 |
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339 | private boolean isAtMaxZoom(Rectangle visibleRect) {
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340 | return (visibleRect.width == (int) (getSize().width / MAX_ZOOM.get()) ||
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341 | visibleRect.height == (int) (getSize().height / MAX_ZOOM.get()));
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342 | }
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343 |
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344 | private void mouseWheelMovedImpl(int x, int y, int rotation, boolean refreshMousePointInImg) {
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345 | IImageEntry<?> currentEntry;
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346 | IImageViewer imageViewer;
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347 | Image currentImage;
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348 | VisRect currentVisibleRect;
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349 |
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350 | synchronized (ImageDisplay.this) {
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351 | currentEntry = ImageDisplay.this.entry;
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352 | currentImage = ImageDisplay.this.image;
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353 | currentVisibleRect = ImageDisplay.this.visibleRect;
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354 | imageViewer = ImageDisplay.this.iImageViewer;
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355 | }
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356 |
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357 | selectedRect = null;
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358 |
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359 | if (currentImage == null)
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360 | return;
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361 |
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362 | // Calculate the mouse cursor position in image coordinates to center the zoom.
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363 | if (refreshMousePointInImg)
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364 | mousePointInImg = comp2imgCoord(currentVisibleRect, x, y, getSize());
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365 |
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366 | // Apply the zoom to the visible rectangle in image coordinates
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367 | if (rotation > 0) {
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368 | currentVisibleRect.width = (int) (currentVisibleRect.width * ZOOM_STEP.get());
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369 | currentVisibleRect.height = (int) (currentVisibleRect.height * ZOOM_STEP.get());
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370 | } else if (rotation < 0) {
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371 | currentVisibleRect.width = (int) (currentVisibleRect.width / ZOOM_STEP.get());
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372 | currentVisibleRect.height = (int) (currentVisibleRect.height / ZOOM_STEP.get());
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373 | } // else rotation == 0, which can happen with some modern trackpads (see #22770)
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374 |
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375 | // Check that the zoom doesn't exceed MAX_ZOOM:1
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376 | ensureMaxZoom(currentVisibleRect);
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377 |
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378 | // The size of the visible rectangle is limited by the image size or the viewer implementation.
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379 | if (imageViewer != null) {
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380 | imageViewer.checkAndModifyVisibleRectSize(currentImage, currentVisibleRect);
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381 | } else {
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382 | currentVisibleRect.checkRectSize();
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383 | }
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384 |
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385 | // Set the position of the visible rectangle, so that the mouse cursor doesn't move on the image.
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386 | Rectangle drawRect = calculateDrawImageRectangle(currentVisibleRect, getSize());
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387 | currentVisibleRect.x = mousePointInImg.x + ((drawRect.x - x) * currentVisibleRect.width) / drawRect.width;
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388 | currentVisibleRect.y = mousePointInImg.y + ((drawRect.y - y) * currentVisibleRect.height) / drawRect.height;
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389 |
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390 | // The position is also limited by the image size
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391 | currentVisibleRect.checkRectPos();
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392 |
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393 | synchronized (ImageDisplay.this) {
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394 | if (ImageDisplay.this.entry == currentEntry) {
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395 | ImageDisplay.this.visibleRect = currentVisibleRect;
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396 | }
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397 | }
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398 | ImageDisplay.this.repaint();
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399 | }
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400 |
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401 | /** Zoom in and out, trying to preserve the point of the image that was under the mouse cursor
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402 | * at the same place */
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403 | @Override
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404 | public void mouseWheelMoved(MouseWheelEvent e) {
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405 | boolean refreshMousePointInImg = false;
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406 |
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407 | // To avoid issues when the user tries to zoom in on the image borders, this
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408 | // point is not recalculated as long as e occurs at roughly the same position.
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409 | if (lastMouseEvent == null || mousePointInImg == null ||
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410 | ((lastMouseEvent.getX()-e.getX())*(lastMouseEvent.getX()-e.getX())
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411 | +(lastMouseEvent.getY()-e.getY())*(lastMouseEvent.getY()-e.getY()) > 4*4)) {
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412 | lastMouseEvent = e;
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413 | refreshMousePointInImg = true;
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414 | }
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415 |
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416 | mouseWheelMovedImpl(e.getX(), e.getY(), e.getWheelRotation(), refreshMousePointInImg);
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417 | }
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418 |
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419 | /** Center the display on the point that has been clicked */
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420 | @Override
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421 | public void mouseClicked(MouseEvent e) {
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422 | // Move the center to the clicked point.
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423 | IImageEntry<?> currentEntry;
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424 | Image currentImage;
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425 | VisRect currentVisibleRect;
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426 |
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427 | synchronized (ImageDisplay.this) {
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428 | currentEntry = ImageDisplay.this.entry;
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429 | currentImage = ImageDisplay.this.image;
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430 | currentVisibleRect = ImageDisplay.this.visibleRect;
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431 | }
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432 |
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433 | if (currentImage == null)
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434 | return;
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435 |
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436 | if (Boolean.TRUE.equals(ZOOM_ON_CLICK.get())) {
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437 | // click notions are less coherent than wheel, refresh mousePointInImg on each click
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438 | lastMouseEvent = null;
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439 |
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440 | if (mouseIsZoomSelecting(e) && !isAtMaxZoom(currentVisibleRect)) {
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441 | // zoom in if clicked with the zoom button
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442 | mouseWheelMovedImpl(e.getX(), e.getY(), -1, true);
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443 | return;
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444 | }
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445 | if (mouseIsDragging(e)) {
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446 | // zoom out if clicked with the drag button
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447 | mouseWheelMovedImpl(e.getX(), e.getY(), 1, true);
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448 | return;
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449 | }
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450 | }
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451 |
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452 | // Calculate the translation to set the clicked point the center of the view.
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453 | Point click = comp2imgCoord(currentVisibleRect, e.getX(), e.getY(), getSize());
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454 | Point center = getCenterImgCoord(currentVisibleRect);
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455 |
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456 | currentVisibleRect.x += click.x - center.x;
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457 | currentVisibleRect.y += click.y - center.y;
|
---|
458 |
|
---|
459 | currentVisibleRect.checkRectPos();
|
---|
460 |
|
---|
461 | synchronized (ImageDisplay.this) {
|
---|
462 | if (ImageDisplay.this.entry == currentEntry) {
|
---|
463 | ImageDisplay.this.visibleRect = currentVisibleRect;
|
---|
464 | }
|
---|
465 | }
|
---|
466 | ImageDisplay.this.repaint();
|
---|
467 | }
|
---|
468 |
|
---|
469 | /** Initialize the dragging, either with button 1 (simple dragging) or button 3 (selection of
|
---|
470 | * a picture part) */
|
---|
471 | @Override
|
---|
472 | public void mousePressed(MouseEvent e) {
|
---|
473 | Image currentImage;
|
---|
474 | VisRect currentVisibleRect;
|
---|
475 |
|
---|
476 | synchronized (ImageDisplay.this) {
|
---|
477 | currentImage = ImageDisplay.this.image;
|
---|
478 | currentVisibleRect = ImageDisplay.this.visibleRect;
|
---|
479 | }
|
---|
480 |
|
---|
481 | if (currentImage == null)
|
---|
482 | return;
|
---|
483 |
|
---|
484 | selectedRect = null;
|
---|
485 |
|
---|
486 | if (mouseIsDragging(e) || mouseIsZoomSelecting(e))
|
---|
487 | mousePointInImg = comp2imgCoord(currentVisibleRect, e.getX(), e.getY(), getSize());
|
---|
488 | }
|
---|
489 |
|
---|
490 | @Override
|
---|
491 | public void mouseDragged(MouseEvent e) {
|
---|
492 | if (!mouseIsDragging(e) && !mouseIsZoomSelecting(e))
|
---|
493 | return;
|
---|
494 |
|
---|
495 | IImageEntry<?> imageEntry;
|
---|
496 | Image currentImage;
|
---|
497 | VisRect currentVisibleRect;
|
---|
498 |
|
---|
499 | synchronized (ImageDisplay.this) {
|
---|
500 | imageEntry = ImageDisplay.this.entry;
|
---|
501 | currentImage = ImageDisplay.this.image;
|
---|
502 | currentVisibleRect = ImageDisplay.this.visibleRect;
|
---|
503 | }
|
---|
504 |
|
---|
505 | if (currentImage == null)
|
---|
506 | return;
|
---|
507 |
|
---|
508 | if (mouseIsDragging(e) && mousePointInImg != null) {
|
---|
509 | Point p = comp2imgCoord(currentVisibleRect, e.getX(), e.getY(), getSize());
|
---|
510 | getIImageViewer(entry).mouseDragged(this.mousePointInImg, p, currentVisibleRect);
|
---|
511 | currentVisibleRect.checkRectPos();
|
---|
512 | synchronized (ImageDisplay.this) {
|
---|
513 | if (ImageDisplay.this.entry == imageEntry) {
|
---|
514 | ImageDisplay.this.visibleRect = currentVisibleRect;
|
---|
515 | }
|
---|
516 | }
|
---|
517 | // We have to update the mousePointInImg for 360 image panning, as otherwise the panning never stops.
|
---|
518 | // This does not work well with the perspective viewer at this time (2021-08-26).
|
---|
519 | boolean is360panning = entry != null && Projections.EQUIRECTANGULAR == entry.getProjectionType();
|
---|
520 | if (is360panning) {
|
---|
521 | this.mousePointInImg = p;
|
---|
522 | }
|
---|
523 | ImageDisplay.this.repaint();
|
---|
524 | if (is360panning) {
|
---|
525 | // repaint direction arrow
|
---|
526 | MainApplication.getLayerManager().getLayersOfType(GeoImageLayer.class).forEach(AbstractMapViewPaintable::invalidate);
|
---|
527 | }
|
---|
528 | }
|
---|
529 |
|
---|
530 | if (mouseIsZoomSelecting(e) && mousePointInImg != null) {
|
---|
531 | Point p = comp2imgCoord(currentVisibleRect, e.getX(), e.getY(), getSize());
|
---|
532 | currentVisibleRect.checkPointInside(p);
|
---|
533 | VisRect selectedRectTemp = new VisRect(
|
---|
534 | Math.min(p.x, mousePointInImg.x),
|
---|
535 | Math.min(p.y, mousePointInImg.y),
|
---|
536 | p.x < mousePointInImg.x ? mousePointInImg.x - p.x : p.x - mousePointInImg.x,
|
---|
537 | p.y < mousePointInImg.y ? mousePointInImg.y - p.y : p.y - mousePointInImg.y,
|
---|
538 | currentVisibleRect);
|
---|
539 | selectedRectTemp.checkRectSize();
|
---|
540 | selectedRectTemp.checkRectPos();
|
---|
541 | ImageDisplay.this.selectedRect = selectedRectTemp;
|
---|
542 | ImageDisplay.this.repaint();
|
---|
543 | }
|
---|
544 | }
|
---|
545 |
|
---|
546 | @Override
|
---|
547 | public void mouseReleased(MouseEvent e) {
|
---|
548 | IImageEntry<?> currentEntry;
|
---|
549 | Image currentImage;
|
---|
550 | VisRect currentVisibleRect;
|
---|
551 |
|
---|
552 | synchronized (ImageDisplay.this) {
|
---|
553 | currentEntry = ImageDisplay.this.entry;
|
---|
554 | currentImage = ImageDisplay.this.image;
|
---|
555 | currentVisibleRect = ImageDisplay.this.visibleRect;
|
---|
556 | }
|
---|
557 |
|
---|
558 | if (currentImage == null)
|
---|
559 | return;
|
---|
560 |
|
---|
561 | if (mouseIsDragging(e)) {
|
---|
562 | currentVisibleRect.isDragUpdate = false;
|
---|
563 | }
|
---|
564 |
|
---|
565 | if (mouseIsZoomSelecting(e) && selectedRect != null) {
|
---|
566 | int oldWidth = selectedRect.width;
|
---|
567 | int oldHeight = selectedRect.height;
|
---|
568 |
|
---|
569 | // Check that the zoom doesn't exceed MAX_ZOOM:1
|
---|
570 | ensureMaxZoom(selectedRect);
|
---|
571 |
|
---|
572 | // Keep the center of the selection
|
---|
573 | if (selectedRect.width != oldWidth) {
|
---|
574 | selectedRect.x -= (selectedRect.width - oldWidth) / 2;
|
---|
575 | }
|
---|
576 | if (selectedRect.height != oldHeight) {
|
---|
577 | selectedRect.y -= (selectedRect.height - oldHeight) / 2;
|
---|
578 | }
|
---|
579 |
|
---|
580 | selectedRect.checkRectSize();
|
---|
581 | selectedRect.checkRectPos();
|
---|
582 | }
|
---|
583 |
|
---|
584 | synchronized (ImageDisplay.this) {
|
---|
585 | if (currentEntry == ImageDisplay.this.entry) {
|
---|
586 | if (selectedRect == null) {
|
---|
587 | ImageDisplay.this.visibleRect = currentVisibleRect;
|
---|
588 | } else {
|
---|
589 | ImageDisplay.this.visibleRect.setBounds(selectedRect);
|
---|
590 | selectedRect = null;
|
---|
591 | }
|
---|
592 | }
|
---|
593 | }
|
---|
594 | ImageDisplay.this.repaint();
|
---|
595 | }
|
---|
596 | }
|
---|
597 |
|
---|
598 | /**
|
---|
599 | * Constructs a new {@code ImageDisplay} with no image processor.
|
---|
600 | */
|
---|
601 | public ImageDisplay() {
|
---|
602 | this(imageObject -> imageObject);
|
---|
603 | }
|
---|
604 |
|
---|
605 | /**
|
---|
606 | * Constructs a new {@code ImageDisplay} with a given image processor.
|
---|
607 | * @param imageProcessor image processor
|
---|
608 | * @since 17740
|
---|
609 | */
|
---|
610 | public ImageDisplay(ImageProcessor imageProcessor) {
|
---|
611 | addMouseListener(imgMouseListener);
|
---|
612 | addMouseWheelListener(imgMouseListener);
|
---|
613 | addMouseMotionListener(imgMouseListener);
|
---|
614 | Config.getPref().addPreferenceChangeListener(this);
|
---|
615 | preferenceChanged(null);
|
---|
616 | this.imageProcessor = imageProcessor;
|
---|
617 | if (imageProcessor instanceof ImageryFilterSettings) {
|
---|
618 | ((ImageryFilterSettings) imageProcessor).addFilterChangeListener(this);
|
---|
619 | }
|
---|
620 | }
|
---|
621 |
|
---|
622 | @Override
|
---|
623 | public void destroy() {
|
---|
624 | if (!destroyed) {
|
---|
625 | removeMouseListener(imgMouseListener);
|
---|
626 | removeMouseWheelListener(imgMouseListener);
|
---|
627 | removeMouseMotionListener(imgMouseListener);
|
---|
628 | Config.getPref().removePreferenceChangeListener(this);
|
---|
629 | if (imageProcessor instanceof ImageryFilterSettings) {
|
---|
630 | ((ImageryFilterSettings) imageProcessor).removeFilterChangeListener(this);
|
---|
631 | }
|
---|
632 | }
|
---|
633 | destroyed = true;
|
---|
634 | }
|
---|
635 |
|
---|
636 | /**
|
---|
637 | * Sets a new source image to be displayed by this {@code ImageDisplay}.
|
---|
638 | * @param entry new source image
|
---|
639 | * @return a {@link Future} representing pending completion of the image loading task
|
---|
640 | * @since 18246 (signature)
|
---|
641 | */
|
---|
642 | public Future<?> setImage(IImageEntry<?> entry) {
|
---|
643 | LoadImageRunnable runnable = setImage0(entry);
|
---|
644 | return runnable != null && !MainApplication.worker.isShutdown() ? MainApplication.worker.submit(runnable) : null;
|
---|
645 | }
|
---|
646 |
|
---|
647 | protected LoadImageRunnable setImage0(IImageEntry<?> entry) {
|
---|
648 | synchronized (this) {
|
---|
649 | this.oldEntry = this.entry;
|
---|
650 | this.entry = entry;
|
---|
651 | if (entry == null) {
|
---|
652 | image = null;
|
---|
653 | updateProcessedImage();
|
---|
654 | this.oldEntry = null;
|
---|
655 | }
|
---|
656 | errorLoading = false;
|
---|
657 | }
|
---|
658 | repaint();
|
---|
659 | return entry != null ? new LoadImageRunnable(entry) : null;
|
---|
660 | }
|
---|
661 |
|
---|
662 | /**
|
---|
663 | * Set the message displayed when there is no image to display.
|
---|
664 | * By default it display a simple No image
|
---|
665 | * @param emptyText the string to display
|
---|
666 | * @since 15333
|
---|
667 | */
|
---|
668 | public void setEmptyText(String emptyText) {
|
---|
669 | this.emptyText = emptyText;
|
---|
670 | }
|
---|
671 |
|
---|
672 | /**
|
---|
673 | * Sets the On-Screen-Display text.
|
---|
674 | * @param text text to display on top of the image
|
---|
675 | */
|
---|
676 | public void setOsdText(String text) {
|
---|
677 | if (!text.equals(this.osdText)) {
|
---|
678 | this.osdText = text;
|
---|
679 | repaint();
|
---|
680 | }
|
---|
681 | }
|
---|
682 |
|
---|
683 | @Override
|
---|
684 | public void filterChanged() {
|
---|
685 | if (updateImageThreadInstance != null) {
|
---|
686 | updateImageThreadInstance.restart();
|
---|
687 | } else {
|
---|
688 | updateImageThreadInstance = new UpdateImageThread();
|
---|
689 | updateImageThreadInstance.start();
|
---|
690 | }
|
---|
691 | }
|
---|
692 |
|
---|
693 | private void updateProcessedImage() {
|
---|
694 | processedImage = image == null ? null : imageProcessor.process(image);
|
---|
695 | GuiHelper.runInEDT(this::repaint);
|
---|
696 | }
|
---|
697 |
|
---|
698 | @Override
|
---|
699 | public void paintComponent(Graphics g) {
|
---|
700 | super.paintComponent(g);
|
---|
701 |
|
---|
702 | IImageEntry<?> currentEntry;
|
---|
703 | IImageEntry<?> currentOldEntry;
|
---|
704 | IImageViewer currentImageViewer;
|
---|
705 | BufferedImage currentImage;
|
---|
706 | boolean currentErrorLoading;
|
---|
707 |
|
---|
708 | synchronized (this) {
|
---|
709 | currentImage = this.processedImage;
|
---|
710 | currentEntry = this.entry;
|
---|
711 | currentOldEntry = this.oldEntry;
|
---|
712 | currentErrorLoading = this.errorLoading;
|
---|
713 | }
|
---|
714 |
|
---|
715 | if (g instanceof Graphics2D) {
|
---|
716 | ((Graphics2D) g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
|
---|
717 | }
|
---|
718 |
|
---|
719 | Dimension size = getSize();
|
---|
720 | // Draw the image first, then draw error information
|
---|
721 | if (currentImage != null && (currentEntry != null || currentOldEntry != null)) {
|
---|
722 | currentImageViewer = this.getIImageViewer(currentEntry);
|
---|
723 | // This must be after the getIImageViewer call, since we may be switching image viewers. This is important,
|
---|
724 | // since an image viewer on switch may change the visible rectangle.
|
---|
725 | VisRect currentVisibleRect;
|
---|
726 | synchronized (this) {
|
---|
727 | currentVisibleRect = this.visibleRect;
|
---|
728 | }
|
---|
729 | Rectangle r = new Rectangle(currentVisibleRect);
|
---|
730 | Rectangle target = calculateDrawImageRectangle(currentVisibleRect, size);
|
---|
731 |
|
---|
732 | currentImageViewer.paintImage(g, currentImage, target, r);
|
---|
733 | paintSelectedRect(g, target, currentVisibleRect, size);
|
---|
734 | if (currentErrorLoading && currentEntry != null) {
|
---|
735 | String loadingStr = tr("Error on file {0}", currentEntry.getDisplayName());
|
---|
736 | Rectangle2D noImageSize = g.getFontMetrics(g.getFont()).getStringBounds(loadingStr, g);
|
---|
737 | g.drawString(loadingStr, (int) ((size.width - noImageSize.getWidth()) / 2),
|
---|
738 | (int) ((size.height - noImageSize.getHeight()) / 2));
|
---|
739 | }
|
---|
740 | paintOsdText(g);
|
---|
741 | }
|
---|
742 | paintErrorMessage(g, currentEntry, currentOldEntry, currentImage, currentErrorLoading, size);
|
---|
743 | }
|
---|
744 |
|
---|
745 | /**
|
---|
746 | * Paint an error message
|
---|
747 | * @param g The graphics to paint on
|
---|
748 | * @param imageEntry The current image entry
|
---|
749 | * @param oldImageEntry The old image entry
|
---|
750 | * @param bufferedImage The image being painted
|
---|
751 | * @param currentErrorLoading If there was an error loading the image
|
---|
752 | * @param size The size of the component
|
---|
753 | */
|
---|
754 | private void paintErrorMessage(Graphics g, IImageEntry<?> imageEntry, IImageEntry<?> oldImageEntry,
|
---|
755 | BufferedImage bufferedImage, boolean currentErrorLoading, Dimension size) {
|
---|
756 | final String errorMessage;
|
---|
757 | // If the new entry is null, then there is no image.
|
---|
758 | if (imageEntry == null) {
|
---|
759 | if (emptyText == null) {
|
---|
760 | emptyText = tr("No image");
|
---|
761 | }
|
---|
762 | errorMessage = emptyText;
|
---|
763 | } else if (bufferedImage == null || !Objects.equals(imageEntry, oldImageEntry)) {
|
---|
764 | // The image is not necessarily null when loading anymore. If the oldEntry is not the same as the new entry,
|
---|
765 | // we are probably still loading the image. (oldEntry gets set to entry when the image finishes loading).
|
---|
766 | if (!currentErrorLoading) {
|
---|
767 | errorMessage = tr("Loading {0}", imageEntry.getDisplayName());
|
---|
768 | } else {
|
---|
769 | errorMessage = tr("Error on file {0}", imageEntry.getDisplayName());
|
---|
770 | }
|
---|
771 | } else {
|
---|
772 | errorMessage = null;
|
---|
773 | }
|
---|
774 | if (!Utils.isStripEmpty(errorMessage)) {
|
---|
775 | Rectangle2D errorStringSize = g.getFontMetrics(g.getFont()).getStringBounds(errorMessage, g);
|
---|
776 | if (Boolean.TRUE.equals(ERROR_MESSAGE_BACKGROUND.get())) {
|
---|
777 | int height = g.getFontMetrics().getHeight();
|
---|
778 | int descender = g.getFontMetrics().getDescent();
|
---|
779 | g.setColor(getBackground());
|
---|
780 | int width = (int) (errorStringSize.getWidth() * 1);
|
---|
781 | // top-left of text
|
---|
782 | int tlx = (int) ((size.getWidth() - errorStringSize.getWidth()) / 2);
|
---|
783 | int tly = (int) ((size.getHeight() - 3 * errorStringSize.getHeight()) / 2 + descender);
|
---|
784 | g.fillRect(tlx, tly, width, height);
|
---|
785 | }
|
---|
786 |
|
---|
787 | // lower-left of text
|
---|
788 | int llx = (int) ((size.width - errorStringSize.getWidth()) / 2);
|
---|
789 | int lly = (int) ((size.height - errorStringSize.getHeight()) / 2);
|
---|
790 | g.setColor(getForeground());
|
---|
791 | g.drawString(errorMessage, llx, lly);
|
---|
792 | }
|
---|
793 | }
|
---|
794 |
|
---|
795 | /**
|
---|
796 | * Paint OSD text
|
---|
797 | * @param g The graphics to paint on
|
---|
798 | */
|
---|
799 | private void paintOsdText(Graphics g) {
|
---|
800 | if (osdText != null) {
|
---|
801 | FontMetrics metrics = g.getFontMetrics(g.getFont());
|
---|
802 | int ascent = metrics.getAscent();
|
---|
803 | Color bkground = new Color(255, 255, 255, 128);
|
---|
804 | int lastPos = 0;
|
---|
805 | int pos = osdText.indexOf('\n');
|
---|
806 | int x = 3;
|
---|
807 | int y = 3;
|
---|
808 | String line;
|
---|
809 | while (pos > 0) {
|
---|
810 | line = osdText.substring(lastPos, pos);
|
---|
811 | Rectangle2D lineSize = metrics.getStringBounds(line, g);
|
---|
812 | g.setColor(bkground);
|
---|
813 | g.fillRect(x, y, (int) lineSize.getWidth(), (int) lineSize.getHeight());
|
---|
814 | g.setColor(Color.black);
|
---|
815 | g.drawString(line, x, y + ascent);
|
---|
816 | y += (int) lineSize.getHeight();
|
---|
817 | lastPos = pos + 1;
|
---|
818 | pos = osdText.indexOf('\n', lastPos);
|
---|
819 | }
|
---|
820 |
|
---|
821 | line = osdText.substring(lastPos);
|
---|
822 | Rectangle2D lineSize = g.getFontMetrics(g.getFont()).getStringBounds(line, g);
|
---|
823 | g.setColor(bkground);
|
---|
824 | g.fillRect(x, y, (int) lineSize.getWidth(), (int) lineSize.getHeight());
|
---|
825 | g.setColor(Color.black);
|
---|
826 | g.drawString(line, x, y + ascent);
|
---|
827 | }
|
---|
828 | }
|
---|
829 |
|
---|
830 | /**
|
---|
831 | * Paint the selected rectangle
|
---|
832 | * @param g The graphics to paint on
|
---|
833 | * @param target The target area (i.e., the selection)
|
---|
834 | * @param visibleRectTemp The current visible rect
|
---|
835 | * @param size The size of the component
|
---|
836 | */
|
---|
837 | private void paintSelectedRect(Graphics g, Rectangle target, VisRect visibleRectTemp, Dimension size) {
|
---|
838 | if (selectedRect != null) {
|
---|
839 | Point topLeft = img2compCoord(visibleRectTemp, selectedRect.x, selectedRect.y, size);
|
---|
840 | Point bottomRight = img2compCoord(visibleRectTemp,
|
---|
841 | selectedRect.x + selectedRect.width,
|
---|
842 | selectedRect.y + selectedRect.height, size);
|
---|
843 | g.setColor(new Color(128, 128, 128, 180));
|
---|
844 | g.fillRect(target.x, target.y, target.width, topLeft.y - target.y);
|
---|
845 | g.fillRect(target.x, target.y, topLeft.x - target.x, target.height);
|
---|
846 | g.fillRect(bottomRight.x, target.y, target.x + target.width - bottomRight.x, target.height);
|
---|
847 | g.fillRect(target.x, bottomRight.y, target.width, target.y + target.height - bottomRight.y);
|
---|
848 | g.setColor(Color.black);
|
---|
849 | g.drawRect(topLeft.x, topLeft.y, bottomRight.x - topLeft.x, bottomRight.y - topLeft.y);
|
---|
850 | }
|
---|
851 | }
|
---|
852 |
|
---|
853 | static Point img2compCoord(VisRect visibleRect, int xImg, int yImg, Dimension compSize) {
|
---|
854 | Rectangle drawRect = calculateDrawImageRectangle(visibleRect, compSize);
|
---|
855 | return new Point(drawRect.x + ((xImg - visibleRect.x) * drawRect.width) / visibleRect.width,
|
---|
856 | drawRect.y + ((yImg - visibleRect.y) * drawRect.height) / visibleRect.height);
|
---|
857 | }
|
---|
858 |
|
---|
859 | static Point comp2imgCoord(VisRect visibleRect, int xComp, int yComp, Dimension compSize) {
|
---|
860 | Rectangle drawRect = calculateDrawImageRectangle(visibleRect, compSize);
|
---|
861 | Point p = new Point(
|
---|
862 | ((xComp - drawRect.x) * visibleRect.width),
|
---|
863 | ((yComp - drawRect.y) * visibleRect.height));
|
---|
864 | p.x += (((p.x % drawRect.width) << 1) >= drawRect.width) ? drawRect.width : 0;
|
---|
865 | p.y += (((p.y % drawRect.height) << 1) >= drawRect.height) ? drawRect.height : 0;
|
---|
866 | p.x = visibleRect.x + p.x / drawRect.width;
|
---|
867 | p.y = visibleRect.y + p.y / drawRect.height;
|
---|
868 | return p;
|
---|
869 | }
|
---|
870 |
|
---|
871 | static Point getCenterImgCoord(Rectangle visibleRect) {
|
---|
872 | return new Point(visibleRect.x + visibleRect.width / 2,
|
---|
873 | visibleRect.y + visibleRect.height / 2);
|
---|
874 | }
|
---|
875 |
|
---|
876 | /**
|
---|
877 | * calculateDrawImageRectangle
|
---|
878 | *
|
---|
879 | * @param visibleRect the part of the image that should be drawn (in image coordinates)
|
---|
880 | * @param compSize the part of the component where the image should be drawn (in component coordinates)
|
---|
881 | * @return the part of compRect with the same width/height ratio as the image
|
---|
882 | */
|
---|
883 | static VisRect calculateDrawImageRectangle(VisRect visibleRect, Dimension compSize) {
|
---|
884 | return calculateDrawImageRectangle(visibleRect, new Rectangle(0, 0, compSize.width, compSize.height));
|
---|
885 | }
|
---|
886 |
|
---|
887 | /**
|
---|
888 | * calculateDrawImageRectangle
|
---|
889 | *
|
---|
890 | * @param imgRect the part of the image that should be drawn (in image coordinates)
|
---|
891 | * @param compRect the part of the component where the image should be drawn (in component coordinates)
|
---|
892 | * @return the part of compRect with the same width/height ratio as the image
|
---|
893 | */
|
---|
894 | static VisRect calculateDrawImageRectangle(VisRect imgRect, Rectangle compRect) {
|
---|
895 | int x = 0;
|
---|
896 | int y = 0;
|
---|
897 | int w = compRect.width;
|
---|
898 | int h = compRect.height;
|
---|
899 |
|
---|
900 | int wFact = w * imgRect.height;
|
---|
901 | int hFact = h * imgRect.width;
|
---|
902 | if (wFact != hFact) {
|
---|
903 | if (wFact > hFact) {
|
---|
904 | w = hFact / imgRect.height;
|
---|
905 | x = (compRect.width - w) / 2;
|
---|
906 | } else {
|
---|
907 | h = wFact / imgRect.width;
|
---|
908 | y = (compRect.height - h) / 2;
|
---|
909 | }
|
---|
910 | }
|
---|
911 |
|
---|
912 | // overscan to prevent empty edges when zooming in to zoom scales > 2:1
|
---|
913 | if (w > imgRect.width && h > imgRect.height && !imgRect.isFullView1D() && wFact != hFact) {
|
---|
914 | if (wFact > hFact) {
|
---|
915 | w = compRect.width;
|
---|
916 | x = 0;
|
---|
917 | h = wFact / imgRect.width;
|
---|
918 | y = (compRect.height - h) / 2;
|
---|
919 | } else {
|
---|
920 | h = compRect.height;
|
---|
921 | y = 0;
|
---|
922 | w = hFact / imgRect.height;
|
---|
923 | x = (compRect.width - w) / 2;
|
---|
924 | }
|
---|
925 | }
|
---|
926 |
|
---|
927 | return new VisRect(x + compRect.x, y + compRect.y, w, h, imgRect);
|
---|
928 | }
|
---|
929 |
|
---|
930 | /**
|
---|
931 | * Make the current image either scale to fit inside this component,
|
---|
932 | * or show a portion of image (1:1), if the image size is larger than
|
---|
933 | * the component size.
|
---|
934 | */
|
---|
935 | public void zoomBestFitOrOne() {
|
---|
936 | IImageEntry<?> currentEntry;
|
---|
937 | Image currentImage;
|
---|
938 | VisRect currentVisibleRect;
|
---|
939 |
|
---|
940 | synchronized (this) {
|
---|
941 | currentEntry = this.entry;
|
---|
942 | currentImage = this.image;
|
---|
943 | currentVisibleRect = this.visibleRect;
|
---|
944 | }
|
---|
945 |
|
---|
946 | if (currentImage == null)
|
---|
947 | return;
|
---|
948 |
|
---|
949 | if (currentVisibleRect.width != currentImage.getWidth(null) || currentVisibleRect.height != currentImage.getHeight(null)) {
|
---|
950 | // The display is not at best fit. => Zoom to best fit
|
---|
951 | currentVisibleRect.reset();
|
---|
952 | } else {
|
---|
953 | // The display is at best fit => zoom to 1:1
|
---|
954 | Point center = getCenterImgCoord(currentVisibleRect);
|
---|
955 | currentVisibleRect.setBounds(center.x - getWidth() / 2, center.y - getHeight() / 2,
|
---|
956 | getWidth(), getHeight());
|
---|
957 | currentVisibleRect.checkRectSize();
|
---|
958 | currentVisibleRect.checkRectPos();
|
---|
959 | }
|
---|
960 |
|
---|
961 | synchronized (this) {
|
---|
962 | if (this.entry == currentEntry) {
|
---|
963 | this.visibleRect = currentVisibleRect;
|
---|
964 | }
|
---|
965 | }
|
---|
966 | repaint();
|
---|
967 | }
|
---|
968 |
|
---|
969 | /**
|
---|
970 | * Get the image viewer for an entry
|
---|
971 | * @param entry The entry to get the viewer for. May be {@code null}.
|
---|
972 | * @return The new image viewer, may be {@code null}
|
---|
973 | */
|
---|
974 | private IImageViewer getIImageViewer(IImageEntry<?> entry) {
|
---|
975 | IImageViewer imageViewer;
|
---|
976 | IImageEntry<?> imageEntry;
|
---|
977 | synchronized (this) {
|
---|
978 | imageViewer = this.iImageViewer;
|
---|
979 | imageEntry = entry == null ? this.entry : entry;
|
---|
980 | }
|
---|
981 | if (imageEntry == null || (imageViewer != null && imageViewer.getSupportedProjections().contains(imageEntry.getProjectionType()))) {
|
---|
982 | return imageViewer;
|
---|
983 | }
|
---|
984 | try {
|
---|
985 | imageViewer = ImageProjectionRegistry.getViewer(imageEntry.getProjectionType()).getConstructor().newInstance();
|
---|
986 | } catch (ReflectiveOperationException e) {
|
---|
987 | throw new JosmRuntimeException(e);
|
---|
988 | }
|
---|
989 | synchronized (this) {
|
---|
990 | if (imageEntry.equals(this.entry)) {
|
---|
991 | this.removeComponentListener(this.iImageViewer);
|
---|
992 | this.iImageViewer = imageViewer;
|
---|
993 | imageViewer.componentResized(new ComponentEvent(this, ComponentEvent.COMPONENT_RESIZED));
|
---|
994 | this.addComponentListener(this.iImageViewer);
|
---|
995 | }
|
---|
996 | }
|
---|
997 | return imageViewer;
|
---|
998 | }
|
---|
999 |
|
---|
1000 | /**
|
---|
1001 | * Get the rotation in the image viewer for an entry
|
---|
1002 | * @param entry The entry to get the rotation for. May be {@code null}.
|
---|
1003 | * @return the current rotation in the image viewer, or {@code null}
|
---|
1004 | * @since 18263
|
---|
1005 | */
|
---|
1006 | public Vector3D getRotation(IImageEntry<?> entry) {
|
---|
1007 | return entry != null ? getIImageViewer(entry).getRotation() : null;
|
---|
1008 | }
|
---|
1009 |
|
---|
1010 | /**
|
---|
1011 | * Ensure that a rectangle isn't zoomed in too much
|
---|
1012 | * @param rectangle The rectangle to get (typically the visible area)
|
---|
1013 | */
|
---|
1014 | private void ensureMaxZoom(final Rectangle rectangle) {
|
---|
1015 | if (rectangle.width < getSize().width / MAX_ZOOM.get()) {
|
---|
1016 | rectangle.width = (int) (getSize().width / MAX_ZOOM.get());
|
---|
1017 | }
|
---|
1018 | if (rectangle.height < getSize().height / MAX_ZOOM.get()) {
|
---|
1019 | rectangle.height = (int) (getSize().height / MAX_ZOOM.get());
|
---|
1020 | }
|
---|
1021 |
|
---|
1022 | // Set the same ratio for the visible rectangle and the display area
|
---|
1023 | int hFact = rectangle.height * getSize().width;
|
---|
1024 | int wFact = rectangle.width * getSize().height;
|
---|
1025 | if (hFact > wFact) {
|
---|
1026 | rectangle.width = hFact / getSize().height;
|
---|
1027 | } else {
|
---|
1028 | rectangle.height = wFact / getSize().width;
|
---|
1029 | }
|
---|
1030 | }
|
---|
1031 |
|
---|
1032 | /**
|
---|
1033 | * Update the visible rectangle (ensure zoom does not exceed specified values).
|
---|
1034 | * Specifically only visible for {@link IImageViewer} implementations.
|
---|
1035 | * @since 18246
|
---|
1036 | */
|
---|
1037 | public void updateVisibleRectangle() {
|
---|
1038 | final VisRect currentVisibleRect;
|
---|
1039 | final Image mouseImage;
|
---|
1040 | final IImageViewer iImageViewer;
|
---|
1041 | synchronized (this) {
|
---|
1042 | currentVisibleRect = this.visibleRect;
|
---|
1043 | mouseImage = this.image;
|
---|
1044 | iImageViewer = this.getIImageViewer(this.entry);
|
---|
1045 | }
|
---|
1046 | if (mouseImage != null && currentVisibleRect != null && iImageViewer != null) {
|
---|
1047 | final Image maxImageSize = iImageViewer.getMaxImageSize(this, mouseImage);
|
---|
1048 | final VisRect maxVisibleRect = new VisRect(0, 0, maxImageSize.getWidth(null), maxImageSize.getHeight(null));
|
---|
1049 | maxVisibleRect.setRect(currentVisibleRect);
|
---|
1050 | ensureMaxZoom(maxVisibleRect);
|
---|
1051 |
|
---|
1052 | maxVisibleRect.checkRectSize();
|
---|
1053 | synchronized (this) {
|
---|
1054 | this.visibleRect = maxVisibleRect;
|
---|
1055 | }
|
---|
1056 | }
|
---|
1057 | }
|
---|
1058 | }
|
---|