source: osm/applications/editors/josm/plugins/slippy_map_chooser/src/SlippyMapChooser.java@ 9819

Last change on this file since 9819 was 9819, checked in by stotz, 18 years ago

Switching between Mapnik and Osmarenderer works
File size: 7.0 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.geom.Point2D;
14import java.util.Vector;
15
16import javax.swing.JLabel;
17import javax.swing.JPanel;
18
19import org.openstreetmap.gui.jmapviewer.JMapViewer;
20import org.openstreetmap.gui.jmapviewer.MapMarkerDot;
21import org.openstreetmap.gui.jmapviewer.MemoryTileCache;
22import org.openstreetmap.gui.jmapviewer.OsmMercator;
23import org.openstreetmap.gui.jmapviewer.OsmTileSource;
24import org.openstreetmap.gui.jmapviewer.interfaces.MapMarker;
25import org.openstreetmap.gui.jmapviewer.interfaces.TileSource;
26import org.openstreetmap.josm.gui.download.DownloadDialog;
27import org.openstreetmap.josm.gui.download.DownloadSelection;
28
29/**
30 * JComponent that displays the slippy map tiles
31 *
32 * @author Tim Haussmann
33 *
34 */
35public class SlippyMapChooser extends JMapViewer implements DownloadSelection {
36
37 private DownloadDialog iGui;
38
39 // upper left and lower right corners of the selection rectangle (x/y on
40 // ZOOM_MAX)
41 Point iSelectionRectStart;
42 Point iSelectionRectEnd;
43
44 private SizeButton iSizeButton = new SizeButton();
45 private SourceButton iSourceButton = new SourceButton();
46
47 // standard dimension
48 private Dimension iDownloadDialogDimension;
49 // screen size
50 private Dimension iScreenSize;
51
52 private TileSource[] sources = { new OsmTileSource.Mapnik(), new OsmTileSource.TilesAtHome() };
53
54 /**
55 * Create the chooser component.
56 */
57 public SlippyMapChooser() {
58 super();
59 setZoomContolsVisible(false);
60 setMapMarkerVisible(false);
61 setMinimumSize(new Dimension(350, 350 / 2));
62 }
63
64 public void addGui(final DownloadDialog gui) {
65 iGui = gui;
66 JPanel temp = new JPanel();
67 temp.setLayout(new BorderLayout());
68 temp.add(this, BorderLayout.CENTER);
69 temp.add(new JLabel((tr("Zoom: Mousewheel or double click. "
70 + "Move map: Hold right mousebutton and move mouse. Select: Click."))),
71 BorderLayout.SOUTH);
72 iGui.tabpane.add(temp, tr("Slippy map"));
73
74 new OsmMapControl(this, temp, iSizeButton, iSourceButton);
75 boundingBoxChanged(gui);
76 }
77
78 protected Point getTopLeftCoordinates() {
79 return new Point(center.x - (getWidth() / 2), center.y - (getHeight() / 2));
80 }
81
82 /**
83 * Draw the map.
84 */
85 @Override
86 public void paint(Graphics g) {
87 try {
88 super.paint(g);
89
90 // draw selection rectangle
91 if (iSelectionRectStart != null && iSelectionRectEnd != null) {
92
93 int zoomDiff = MAX_ZOOM - zoom;
94 Point tlc = getTopLeftCoordinates();
95 int x_min = (iSelectionRectStart.x >> zoomDiff) - tlc.x;
96 int y_min = (iSelectionRectStart.y >> zoomDiff) - tlc.y;
97 int x_max = (iSelectionRectEnd.x >> zoomDiff) - tlc.x;
98 int y_max = (iSelectionRectEnd.y >> zoomDiff) - tlc.y;
99
100 int w = x_max - x_min;
101 int h = y_max - y_min;
102 g.setColor(new Color(0.9f, 0.7f, 0.7f, 0.6f));
103 g.fillRect(x_min, y_min, w, h);
104
105 g.setColor(Color.BLACK);
106 g.drawRect(x_min, y_min, w, h);
107
108 }
109
110 iSizeButton.paint(g);
111 iSourceButton.paint(g);
112 } catch (Exception e) {
113 e.printStackTrace();
114 }
115 }
116
117 public void boundingBoxChanged(DownloadDialog gui) {
118
119 // test if a bounding box has been set set
120 if (gui.minlat == 0.0 && gui.minlon == 0.0 && gui.maxlat == 0.0 && gui.maxlon == 0.0)
121 return;
122
123 int y1 = OsmMercator.LatToY(gui.minlat, MAX_ZOOM);
124 int y2 = OsmMercator.LatToY(gui.maxlat, MAX_ZOOM);
125 int x1 = OsmMercator.LonToX(gui.minlon, MAX_ZOOM);
126 int x2 = OsmMercator.LonToX(gui.maxlon, MAX_ZOOM);
127
128 iSelectionRectStart = new Point(Math.min(x1, x2), Math.min(y1, y2));
129 iSelectionRectEnd = new Point(Math.max(x1, x2), Math.max(y1, y2));
130
131 // calc the screen coordinates for the new selection rectangle
132 MapMarkerDot xmin_ymin = new MapMarkerDot(gui.minlat, gui.minlon);
133 MapMarkerDot xmax_ymax = new MapMarkerDot(gui.maxlat, gui.maxlon);
134
135 Vector<MapMarker> marker = new Vector<MapMarker>(2);
136 marker.add(xmin_ymin);
137 marker.add(xmax_ymax);
138 setMapMarkerList(marker);
139 setDisplayToFitMapMarkers();
140 zoomOut();
141 }
142
143 /**
144 * Callback for the OsmMapControl. (Re-)Sets the start and end point of the
145 * selection rectangle.
146 *
147 * @param aStart
148 * @param aEnd
149 */
150 public void setSelection(Point aStart, Point aEnd) {
151 if (aStart == null || aEnd == null)
152 return;
153 Point p_max = new Point(Math.max(aEnd.x, aStart.x), Math.max(aEnd.y, aStart.y));
154 Point p_min = new Point(Math.min(aEnd.x, aStart.x), Math.min(aEnd.y, aStart.y));
155
156 Point tlc = getTopLeftCoordinates();
157 int zoomDiff = MAX_ZOOM - zoom;
158 Point pEnd = new Point(p_max.x + tlc.x, p_max.y + tlc.y);
159 Point pStart = new Point(p_min.x + tlc.x, p_min.y + tlc.y);
160
161 pEnd.x <<= zoomDiff;
162 pEnd.y <<= zoomDiff;
163 pStart.x <<= zoomDiff;
164 pStart.y <<= zoomDiff;
165
166 iSelectionRectStart = pStart;
167 iSelectionRectEnd = pEnd;
168
169 Point2D.Double l1 = getPosition(p_max);
170 Point2D.Double l2 = getPosition(p_min);
171 iGui.minlat = Math.min(l2.x, l1.x);
172 iGui.minlon = Math.min(l1.y, l2.y);
173 iGui.maxlat = Math.max(l2.x, l1.x);
174 iGui.maxlon = Math.max(l1.y, l2.y);
175
176 iGui.boundingBoxChanged(this);
177 repaint();
178 }
179
180 /**
181 * Performs resizing of the DownloadDialog in order to enlarge or shrink the
182 * map.
183 */
184 public void resizeSlippyMap() {
185 if (iScreenSize == null) {
186 Component c =
187 iGui.getParent().getParent().getParent().getParent().getParent().getParent()
188 .getParent().getParent().getParent();
189 // remember the initial set screen dimensions
190 iDownloadDialogDimension = c.getSize();
191 // retrive the size of the display
192 iScreenSize = Toolkit.getDefaultToolkit().getScreenSize();
193 }
194
195 // resize
196 Component co =
197 iGui.getParent().getParent().getParent().getParent().getParent().getParent()
198 .getParent().getParent().getParent();
199 Dimension currentDimension = co.getSize();
200
201 // enlarge
202 if (currentDimension.equals(iDownloadDialogDimension)) {
203 // make the each dimension 90% of the absolute display size and
204 // center the DownloadDialog
205 int w = iScreenSize.width * 90 / 100;
206 int h = iScreenSize.height * 90 / 100;
207 co.setBounds((iScreenSize.width - w) / 2, (iScreenSize.height - h) / 2, w, h);
208
209 }
210 // shrink
211 else {
212 // set the size back to the initial dimensions and center the
213 // DownloadDialog
214 int w = iDownloadDialogDimension.width;
215 int h = iDownloadDialogDimension.height;
216 co.setBounds((iScreenSize.width - w) / 2, (iScreenSize.height - h) / 2, w, h);
217
218 }
219
220 repaint();
221 }
222
223 public void toggleMapSource(int mapSource) {
224 this.tileCache = new MemoryTileCache();
225 if (mapSource == SourceButton.MAPNIK) {
226 this.setTileSource(sources[0]);
227 } else {
228 this.setTileSource(sources[1]);
229 }
230 }
231
232}
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