source: osm/applications/editors/josm/plugins/slippy_map_chooser/src/SlippyMapChooser.java@ 13260

Last change on this file since 13260 was 13260, checked in by stoecker, 17 years ago

close #2020. patch by Detlef Reichl
File size: 10.1 KB
Line 
1// This code has been adapted and copied from code that has been written by Immanuel Scholz and others for JOSM.
2// License: GPL. Copyright 2007 by Tim Haussmann
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.awt.BorderLayout;
7import java.awt.Color;
8import java.awt.Component;
9import java.awt.Dimension;
10import java.awt.Graphics;
11import java.awt.Point;
12import java.awt.Toolkit;
13import java.awt.event.ComponentEvent;
14import java.awt.event.ComponentListener;
15import java.awt.geom.Point2D;
16import java.util.Vector;
17
18import javax.swing.JLabel;
19import javax.swing.JPanel;
20
21import org.openstreetmap.gui.jmapviewer.JMapViewer;
22import org.openstreetmap.gui.jmapviewer.MapMarkerDot;
23import org.openstreetmap.gui.jmapviewer.MemoryTileCache;
24import org.openstreetmap.gui.jmapviewer.OsmFileCacheTileLoader;
25import org.openstreetmap.gui.jmapviewer.OsmMercator;
26import org.openstreetmap.gui.jmapviewer.OsmTileLoader;
27import org.openstreetmap.gui.jmapviewer.OsmTileSource;
28import org.openstreetmap.gui.jmapviewer.interfaces.MapMarker;
29import org.openstreetmap.gui.jmapviewer.interfaces.TileLoader;
30import org.openstreetmap.gui.jmapviewer.interfaces.TileSource;
31import org.openstreetmap.josm.Main;
32import org.openstreetmap.josm.gui.download.DownloadDialog;
33import org.openstreetmap.josm.gui.download.DownloadSelection;
34
35/**
36 * JComponent that displays the slippy map tiles
37 *
38 * @author Tim Haussmann
39 *
40 */
41public class SlippyMapChooser extends JMapViewer implements DownloadSelection, ComponentListener {
42
43 private DownloadDialog iGui;
44
45 // upper left and lower right corners of the selection rectangle (x/y on
46 // ZOOM_MAX)
47 Point iSelectionRectStart;
48 Point iSelectionRectEnd;
49
50 private SizeButton iSizeButton = new SizeButton();
51 private SourceButton iSourceButton = new SourceButton();
52
53 // standard dimension
54 private Dimension iDownloadDialogDimension;
55 // screen size
56 private Dimension iScreenSize;
57
58 private TileSource[] sources = { new OsmTileSource.Mapnik(), new OsmTileSource.TilesAtHome() };
59 TileLoader cachedLoader;
60 TileLoader uncachedLoader;
61 JPanel slipyyMapTabPanel;
62 boolean firstShown = true;
63
64 /**
65 * Create the chooser component.
66 */
67 public SlippyMapChooser() {
68 super();
69 cachedLoader = new OsmFileCacheTileLoader(this);
70 uncachedLoader = new OsmTileLoader(this);
71 setZoomContolsVisible(false);
72 setMapMarkerVisible(false);
73 setMinimumSize(new Dimension(350, 350 / 2));
74 setFileCacheEnabled(SlippyMapChooserPlugin.ENABLE_FILE_CACHE);
75 setMaxTilesInmemory(SlippyMapChooserPlugin.MAX_TILES_IN_MEMORY);
76 addComponentListener(this);
77
78 String mapStyle = Main.pref.get("slippy_map_chooser.mapstyle", "mapnik");
79 if(mapStyle.equals("osmarender")) {
80 iSourceButton.setIsMapStyleMapnik(false);
81 this.setTileSource(sources[1]);
82 }
83 else {
84 if(!mapStyle.equals("mapnik"))
85 Main.pref.put("slippy_map_chooser.mapstyle", "mapnik");
86 }
87 }
88
89 public void setMaxTilesInmemory(int tiles) {
90 ((MemoryTileCache) getTileCache()).setCacheSize(tiles);
91 }
92
93 public void setFileCacheEnabled(boolean enabled) {
94 if (enabled)
95 setTileLoader(cachedLoader);
96 else
97 setTileLoader(uncachedLoader);
98 }
99
100 public void addGui(final DownloadDialog gui) {
101 iGui = gui;
102 slipyyMapTabPanel = new JPanel();
103 slipyyMapTabPanel.setLayout(new BorderLayout());
104 slipyyMapTabPanel.add(this, BorderLayout.CENTER);
105 slipyyMapTabPanel.add(new JLabel((tr("Zoom: Mousewheel or double click. "
106 + "Move map: Hold right mousebutton and move mouse. Select: Click."))),
107 BorderLayout.SOUTH);
108 iGui.tabpane.add(slipyyMapTabPanel, tr("Slippy map"));
109 iGui.tabpane.addComponentListener(this);
110 new OsmMapControl(this, slipyyMapTabPanel, iSizeButton, iSourceButton);
111 }
112
113 protected Point getTopLeftCoordinates() {
114 return new Point(center.x - (getWidth() / 2), center.y - (getHeight() / 2));
115 }
116
117 /**
118 * Draw the map.
119 */
120 @Override
121 public void paint(Graphics g) {
122 try {
123 super.paint(g);
124
125 // draw selection rectangle
126 if (iSelectionRectStart != null && iSelectionRectEnd != null) {
127
128 int zoomDiff = MAX_ZOOM - zoom;
129 Point tlc = getTopLeftCoordinates();
130 int x_min = (iSelectionRectStart.x >> zoomDiff) - tlc.x;
131 int y_min = (iSelectionRectStart.y >> zoomDiff) - tlc.y;
132 int x_max = (iSelectionRectEnd.x >> zoomDiff) - tlc.x;
133 int y_max = (iSelectionRectEnd.y >> zoomDiff) - tlc.y;
134
135 int w = x_max - x_min;
136 int h = y_max - y_min;
137 g.setColor(new Color(0.9f, 0.7f, 0.7f, 0.6f));
138 g.fillRect(x_min, y_min, w, h);
139
140 g.setColor(Color.BLACK);
141 g.drawRect(x_min, y_min, w, h);
142
143 }
144
145 iSizeButton.paint(g);
146 iSourceButton.paint(g);
147 } catch (Exception e) {
148 e.printStackTrace();
149 }
150 }
151
152 public void boundingBoxChanged(DownloadDialog gui) {
153
154 // test if a bounding box has been set set
155 if (gui.minlat == 0.0 && gui.minlon == 0.0 && gui.maxlat == 0.0 && gui.maxlon == 0.0)
156 return;
157
158 int y1 = OsmMercator.LatToY(gui.minlat, MAX_ZOOM);
159 int y2 = OsmMercator.LatToY(gui.maxlat, MAX_ZOOM);
160 int x1 = OsmMercator.LonToX(gui.minlon, MAX_ZOOM);
161 int x2 = OsmMercator.LonToX(gui.maxlon, MAX_ZOOM);
162
163 iSelectionRectStart = new Point(Math.min(x1, x2), Math.min(y1, y2));
164 iSelectionRectEnd = new Point(Math.max(x1, x2), Math.max(y1, y2));
165
166 // calc the screen coordinates for the new selection rectangle
167 MapMarkerDot xmin_ymin = new MapMarkerDot(gui.minlat, gui.minlon);
168 MapMarkerDot xmax_ymax = new MapMarkerDot(gui.maxlat, gui.maxlon);
169
170 Vector<MapMarker> marker = new Vector<MapMarker>(2);
171 marker.add(xmin_ymin);
172 marker.add(xmax_ymax);
173 setMapMarkerList(marker);
174 setDisplayToFitMapMarkers();
175 zoomOut();
176 }
177
178 /**
179 * Callback for the OsmMapControl. (Re-)Sets the start and end point of the
180 * selection rectangle.
181 *
182 * @param aStart
183 * @param aEnd
184 */
185 public void setSelection(Point aStart, Point aEnd) {
186 if (aStart == null || aEnd == null)
187 return;
188 Point p_max = new Point(Math.max(aEnd.x, aStart.x), Math.max(aEnd.y, aStart.y));
189 Point p_min = new Point(Math.min(aEnd.x, aStart.x), Math.min(aEnd.y, aStart.y));
190
191 Point tlc = getTopLeftCoordinates();
192 int zoomDiff = MAX_ZOOM - zoom;
193 Point pEnd = new Point(p_max.x + tlc.x, p_max.y + tlc.y);
194 Point pStart = new Point(p_min.x + tlc.x, p_min.y + tlc.y);
195
196 pEnd.x <<= zoomDiff;
197 pEnd.y <<= zoomDiff;
198 pStart.x <<= zoomDiff;
199 pStart.y <<= zoomDiff;
200
201 iSelectionRectStart = pStart;
202 iSelectionRectEnd = pEnd;
203
204 Point2D.Double l1 = getPosition(p_max);
205 Point2D.Double l2 = getPosition(p_min);
206 iGui.minlat = Math.min(l2.x, l1.x);
207 iGui.minlon = Math.min(l1.y, l2.y);
208 iGui.maxlat = Math.max(l2.x, l1.x);
209 iGui.maxlon = Math.max(l1.y, l2.y);
210
211 iGui.boundingBoxChanged(this);
212 repaint();
213 }
214
215 /**
216 * Performs resizing of the DownloadDialog in order to enlarge or shrink the
217 * map.
218 */
219 public void resizeSlippyMap() {
220 if (iScreenSize == null) {
221 Component c =
222 iGui.getParent().getParent().getParent().getParent().getParent().getParent()
223 .getParent().getParent().getParent();
224 // remember the initial set screen dimensions
225 iDownloadDialogDimension = c.getSize();
226 // retrive the size of the display
227 iScreenSize = Toolkit.getDefaultToolkit().getScreenSize();
228 }
229
230 // resize
231 Component co =
232 iGui.getParent().getParent().getParent().getParent().getParent().getParent()
233 .getParent().getParent().getParent();
234 Dimension currentDimension = co.getSize();
235
236 // enlarge
237 if (currentDimension.equals(iDownloadDialogDimension)) {
238 // make the each dimension 90% of the absolute display size and
239 // center the DownloadDialog
240 int w = iScreenSize.width * 90 / 100;
241 int h = iScreenSize.height * 90 / 100;
242 co.setBounds((iScreenSize.width - w) / 2, (iScreenSize.height - h) / 2, w, h);
243
244 }
245 // shrink
246 else {
247 // set the size back to the initial dimensions and center the
248 // DownloadDialog
249 int w = iDownloadDialogDimension.width;
250 int h = iDownloadDialogDimension.height;
251 co.setBounds((iScreenSize.width - w) / 2, (iScreenSize.height - h) / 2, w, h);
252
253 }
254
255 repaint();
256 }
257
258 public void toggleMapSource(int mapSource) {
259 this.tileCache = new MemoryTileCache();
260 if (mapSource == SourceButton.MAPNIK) {
261 this.setTileSource(sources[0]);
262 Main.pref.put("slippy_map_chooser.mapstyle", "mapnik");
263 } else {
264 this.setTileSource(sources[1]);
265 Main.pref.put("slippy_map_chooser.mapstyle", "osmarender");
266 }
267 }
268
269 public void componentHidden(ComponentEvent e) {
270 }
271
272 public void componentMoved(ComponentEvent e) {
273 }
274
275 public void componentShown(ComponentEvent e) {
276 }
277
278 public void componentResized(ComponentEvent e) {
279 if (!this.equals(e.getSource()) || getHeight() == 0 || getWidth() == 0)
280 return;
281 firstShown = false;
282 // The bounding box has to be set after SlippyMapChooser's size has been
283 // finally set - otherwise the zoom level will be totally wrong (too wide)
284 boundingBoxChanged(iGui);
285 }
286
287}
Note: See TracBrowser for help on using the repository browser.