gvsig-raster / org.gvsig.raster.tools / trunk / templates / rasterTaskProjectTemplate / alg_with_preview_template / sources / app / ProjectTemplatePreview.java @ 1908
History | View | Annotate | Download (5.4 KB)
1 |
package org.gvsig.raster.projecttemplate.app; |
---|---|
2 |
|
3 |
import java.awt.Graphics2D; |
4 |
import java.awt.geom.Rectangle2D; |
5 |
import java.awt.image.BufferedImage; |
6 |
import java.util.HashMap; |
7 |
|
8 |
import org.gvsig.fmap.dal.coverage.RasterLocator; |
9 |
import org.gvsig.fmap.dal.coverage.dataset.Buffer; |
10 |
import org.gvsig.fmap.dal.coverage.datastruct.Extent; |
11 |
import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
12 |
import org.gvsig.fmap.dal.coverage.grid.render.ImageDrawer; |
13 |
import org.gvsig.gui.beans.imagenavigator.ImageUnavailableException; |
14 |
import org.gvsig.raster.fmap.layers.FLyrRaster; |
15 |
import org.gvsig.raster.projecttemplate.algorithm.ProjectTemplateProcess; |
16 |
import org.gvsig.raster.projecttemplate.app.ProjectTemplateExtension.LayerElement; |
17 |
import org.gvsig.raster.projecttemplate.swing.ProjectTemplateData; |
18 |
import org.gvsig.raster.swing.preview.DataSourcePreview; |
19 |
import org.gvsig.raster.algorithm.RasterBaseAlgorithmLibrary; |
20 |
import org.gvsig.raster.algorithm.process.ProcessException; |
21 |
import org.gvsig.raster.algorithm.process.RasterProcess; |
22 |
import org.gvsig.tools.task.Cancellable; |
23 |
import org.slf4j.Logger; |
24 |
import org.slf4j.LoggerFactory; |
25 |
|
26 |
@SuppressWarnings("deprecation") |
27 |
public class ProjectTemplatePreview implements DataSourcePreview { |
28 |
private FLyrRaster inputLyr = null; |
29 |
private Extent bbox = null; |
30 |
private ProjectTemplateData data = null; |
31 |
private static final Logger logger = LoggerFactory.getLogger(ProjectTemplatePreview.class); |
32 |
|
33 |
|
34 |
public void setData(ProjectTemplateData data) { |
35 |
this.data = data;
|
36 |
loadLayers(); |
37 |
} |
38 |
|
39 |
private void loadLayers() { |
40 |
if(data == null) |
41 |
return;
|
42 |
Object obj = data.getInputLayer();
|
43 |
if(obj != null) |
44 |
inputLyr = (FLyrRaster)((LayerElement)data.getInputLayer()).getLayer(); |
45 |
if(inputLyr != null) |
46 |
bbox = inputLyr.getFullRasterExtent(); |
47 |
} |
48 |
|
49 |
public void closePreviewLayer() { |
50 |
|
51 |
} |
52 |
|
53 |
public double getCellSize() { |
54 |
if(inputLyr != null) |
55 |
return inputLyr.getDataStore().getCellSize();
|
56 |
return 1; |
57 |
} |
58 |
|
59 |
public DataSourcePreview cloneDataSourcePreview() {
|
60 |
return this; |
61 |
} |
62 |
|
63 |
public void popStatus() { |
64 |
} |
65 |
|
66 |
public void pushStatus() { |
67 |
} |
68 |
|
69 |
public void draw(BufferedImage image, Graphics2D g, double[] coords, int w, int h, Cancellable cancel, double scale) throws ImageUnavailableException { |
70 |
//Posici?n de inicio dibujado dentro del Graphics
|
71 |
int x = 0; |
72 |
int y = 0; |
73 |
//Coordenadas de la petici?n
|
74 |
double iniX = coords[0]; |
75 |
double iniY = coords[1]; |
76 |
double endX = coords[2]; |
77 |
double endY = coords[3]; |
78 |
|
79 |
//Se ajustan las coordenadas de petici?n, ancho y alto en coordenadas p?xel,
|
80 |
//as? como la coordenada de inicio de dibujado
|
81 |
if(bbox.getULX() > coords[0]) { |
82 |
iniX = bbox.getULX(); |
83 |
x = (int)(((iniX - coords[0]) * w) / Math.abs(coords[2] - coords[0])); |
84 |
} |
85 |
|
86 |
if(bbox.getULY() < coords[1]) { |
87 |
iniY = bbox.getULY(); |
88 |
y = (int)(((coords[1] - iniY) * h) / Math.abs(coords[3] - coords[1])); |
89 |
} |
90 |
|
91 |
if(bbox.getLRX() < coords[2]) |
92 |
endX = bbox.getLRX(); |
93 |
|
94 |
if(bbox.getLRY() > coords[3]) |
95 |
endY = bbox.getLRY(); |
96 |
|
97 |
if(iniX != coords[0] || endX != coords[2]) { |
98 |
w = (int)((Math.abs(endX - iniX) * w) / Math.abs(coords[2] - coords[0])); |
99 |
} |
100 |
|
101 |
if(iniY != coords[1] || endY != coords[3]) { |
102 |
h = (int)((Math.abs(iniY - endY) * h) / Math.abs(coords[3] - coords[1])); |
103 |
} |
104 |
|
105 |
Extent ext = RasterLocator.getManager().getDataStructFactory().createExtent(iniX, iniY, endX, endY); |
106 |
BufferedImage img = throwProcess(ext, w, h);
|
107 |
g.drawImage(img, x, y, null);
|
108 |
} |
109 |
|
110 |
/**
|
111 |
* Throws the process sequentially. Since the preview is small,
|
112 |
* it should not taken a lot of time
|
113 |
* is small
|
114 |
* @param ext
|
115 |
* @param w
|
116 |
* @param h
|
117 |
* @return
|
118 |
*/
|
119 |
@SuppressWarnings("unchecked") |
120 |
private BufferedImage throwProcess(Extent ext, int w, int h) { |
121 |
loadLayers(); |
122 |
|
123 |
RasterProcess task; |
124 |
try {
|
125 |
task = RasterBaseAlgorithmLibrary.getManager().createRasterTask("ProjectTemplateProcess");
|
126 |
} catch (ProcessException e1) {
|
127 |
e1.printStackTrace(); |
128 |
return null; |
129 |
} |
130 |
task.addParam(ProjectTemplateProcess.RASTER_STORE1, inputLyr.getDataStore()); |
131 |
task.addParam(ProjectTemplateProcess.TEST_EXTENT, ext); |
132 |
task.addParam(ProjectTemplateProcess.TEST_WIDTH, w); |
133 |
task.addParam(ProjectTemplateProcess.TEST_HEIGHT, h); |
134 |
//......
|
135 |
|
136 |
task.init(); |
137 |
try {
|
138 |
task.process(); |
139 |
} catch (ProcessInterruptedException e1) {
|
140 |
return null; |
141 |
} catch (ProcessException e) {
|
142 |
logger.debug("Error in process");
|
143 |
return null; |
144 |
} |
145 |
|
146 |
HashMap<String, Object> map = (HashMap<String, Object>)task.getResult(); |
147 |
Buffer buf = (Buffer)map.get(ProjectTemplateProcess.BUFFER); |
148 |
buf.setDataExtent(ext.toRectangle2D()); |
149 |
if(buf.getBandCount() == 1) { |
150 |
buf.replicateBand(0, 1); |
151 |
buf.replicateBand(0, 2); |
152 |
} |
153 |
ImageDrawer drawer = RasterLocator.getManager().createImageDrawerService(); |
154 |
drawer.setBuffer(buf); |
155 |
try {
|
156 |
//drawer.addEnhanced(inputLyr.getDataStore().getStatistics(), true, 0.2);
|
157 |
return (BufferedImage)drawer.drawBufferOverImageObject(); |
158 |
} catch (ProcessInterruptedException e) {
|
159 |
return null; |
160 |
} |
161 |
} |
162 |
|
163 |
public Object getSource() { |
164 |
return null; |
165 |
} |
166 |
|
167 |
public Rectangle2D getBBoxRectangle() { |
168 |
if(inputLyr != null) |
169 |
return inputLyr.getFullRasterExtent().toRectangle2D();
|
170 |
return new Rectangle2D.Double(); |
171 |
} |
172 |
|
173 |
public void addParams(RasterProcess task, ProjectTemplateData data, String path) { |
174 |
task.addParam(ProjectTemplateProcess.RASTER_STORE1, inputLyr.getDataStore()); |
175 |
//......
|
176 |
task.addParam(ProjectTemplateProcess.PATH, path); |
177 |
} |
178 |
} |