@SuppressWarnings("unchecked")
private void paintMe(PaintEvent e) {
int width = e.gc.getClipping().width;
int height = e.gc.getClipping().height;
if (map != null) {
// sort out the transforms
org.eclipse.swt.graphics.Rectangle paintArea =
new org.eclipse.swt.graphics.Rectangle(0, 0, width, height);
ReferencedEnvelope mapArea = map.getViewport().getBounds();
setTransforms(mapArea, paintArea);
StreamingRenderer renderer = new StreamingRenderer();
renderer.setMapContent(map);
RenderingHints hints =
new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
renderer.setJava2DHints(hints);
@SuppressWarnings("rawtypes")
Map rendererParams = new HashMap();
rendererParams.put("optimizedDataLoadingEnabled", new Boolean(true));
renderer.setRendererHints(rendererParams);
org.eclipse.swt.graphics.Rectangle curPaintArea = e.gc.getClipping();
BufferedImage baseImage =
new BufferedImage(
curPaintArea.width + 1, curPaintArea.height + 1, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = baseImage.createGraphics();
g2d.fillRect(0, 0, curPaintArea.width + 1, curPaintArea.height + 1);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// renderer.setContext(context);
java.awt.Rectangle awtRectangle = Utils.toAwtRectangle(curPaintArea);
final ReferencedEnvelope mapAOI = map.getViewport().getBounds();
renderer.paint(g2d, awtRectangle, mapAOI, getWorldToScreenTransform());
// swtImage.dispose();
if (swtImage != null && !swtImage.isDisposed()) {
swtImage.dispose();
swtImage = null;
}
swtImage =
new Image(
canvas.getDisplay(),
awtToSwt(baseImage, curPaintArea.width + 1, curPaintArea.height + 1));
// org.eclipse.swt.graphics.Image image = new
// org.eclipse.swt.graphics.Image(
// e.display, convertToSWT(tmpImage));
e.gc.drawImage(swtImage, 0, 0);
}
double y2 = Math.random() * 120d;
e.gc.drawLine(20, 40, 80, (int) y2);
};
public Map sectionSigns(DirectPosition2D eventCoords) {
Point2D eventPoint = new DirectPosition2D();
eventPoint.setLocation(eventCoords);
if (eventCoords != null) {
try {
AffineTransform transform_affine = map.getViewport().getWorldToScreen();
transform_affine.transform(eventPoint, eventPoint);
} catch (Exception e) {
e.printStackTrace();
}
}
Map result = new HashMap();
for (Iterator it1 = signsdb.keySet().iterator(); it1.hasNext(); ) {
SimpleFeature feature = (SimpleFeature) it1.next();
StructOffset offset = (StructOffset) signsdb.get(feature);
int width = 60, height = 40;
Point point = (Point) feature.getAttribute("the_geom");
DirectPosition2D geoCoords = new DirectPosition2D(point.getX(), point.getY());
// 经纬度坐标转换为屏幕坐标
MathTransform transform_math;
try {
transform_math =
CRS.findMathTransform(
DefaultGeographicCRS.WGS84, map.getViewport().getCoordinateReferenceSystem(), true);
transform_math.transform(geoCoords, geoCoords);
AffineTransform transform_affine = map.getViewport().getWorldToScreen();
transform_affine.transform(geoCoords, geoCoords);
int signx = (int) (geoCoords.x + offset.getX() + offsetX);
int signy = (int) (geoCoords.y + offset.getY() + offsetY);
// System.out.println(signsCoords.x+":"+signsCoords.y);
if (inSection(signx, signy, width, height, (DirectPosition2D) eventPoint)) {
result.put(feature.getID(), feature.getID());
}
} catch (Exception e) {
}
}
return result;
}
/**
* Draws map content data into image
*
* @param content
* @return image
*/
private BufferedImage saveImage(MapContent content) {
BufferedImage image;
if (isTile && bufferSize != 0.0d) {
image =
new BufferedImage(bufferedImageWidth, bufferedImageHeight, BufferedImage.TYPE_4BYTE_ABGR);
} else {
image = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_4BYTE_ABGR);
}
GTRenderer renderer = new StreamingRenderer();
renderer.setMapContent(content);
Graphics2D g = (Graphics2D) image.getGraphics();
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setRenderingHint(
RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
if (isTile && bufferSize != 0.0d) {
renderer.paint(
g,
new Rectangle(bufferedImageWidth, bufferedImageHeight),
content.getViewport().getBounds());
try {
image =
image.getSubimage(
(int) (imageWidth * bufferSize) / 2,
(int) (imageWidth * bufferSize) / 2,
imageWidth,
imageHeight);
} catch (Exception e) {
log.error(e, "Image cropping failed");
}
} else {
renderer.paint(g, new Rectangle(imageWidth, imageHeight), content.getViewport().getBounds());
}
content.dispose();
return image;
}
/**
* Called after the base image has been dragged. Sets the new map area and transforms
*
* @param env the display area (world coordinates) prior to the image being moved
* @param paintArea the current drawing area (screen units)
*/
private void afterImageMove() {
final ReferencedEnvelope env = content.getViewport().getBounds();
if (env == null) return;
int dx = imageOrigin.x;
int dy = imageOrigin.y;
DirectPosition2D newPos = new DirectPosition2D(dx, dy);
screenToWorld.transform(newPos, newPos);
env.translate(env.getMinimum(0) - newPos.x, env.getMaximum(1) - newPos.y);
doSetDisplayArea(env);
imageOrigin.setLocation(0, 0);
redrawBaseImage = true;
}
/**
* Helper method for {@linkplain #setDisplayArea} which is also called by other methods that want
* to set the display area without provoking repainting of the display
*
* @param envelope requested display area
*/
private void doSetDisplayArea(Envelope envelope) {
assert (content != null && curPaintArea != null && !curPaintArea.isEmpty());
if (equalsFullExtent(envelope)) {
setTransforms(fullExtent, curPaintArea);
} else {
setTransforms(envelope, curPaintArea);
}
ReferencedEnvelope adjustedEnvelope = getDisplayArea();
content.getViewport().setBounds(adjustedEnvelope);
MapPaneEvent ev = new MapPaneEvent(this, MapPaneEvent.Type.DISPLAY_AREA_CHANGED);
publishEvent(ev);
}
/**
* Internal initializer of the control. It starts up the map context, renderer and sets the
* Reference System based in the SRID.
*
* @param srid
* @throws InitializeMapException
*/
private void initialize(int srid) throws InitializeMapException {
MapContent content = new MapContent();
try {
content
.getViewport()
.setCoordinateReferenceSystem(this.generateCoordinateReferenceSystem(srid));
} catch (FactoryException ex) {
throw new InitializeMapException(
Messaging.Ids.MAPCONTROL_MAPCONTEXT_WITHOUT_SRID_ERROR.toString(), ex);
}
if (content.getCoordinateReferenceSystem() == null) {
throw new InitializeMapException(
Messaging.Ids.MAPCONTROL_MAPCONTEXT_WITHOUT_SRID_ERROR.toString(), null);
}
this.srid = srid;
this.setMapContent(content);
}
public void setCrs(CoordinateReferenceSystem crs) {
try {
// System.out.println(content.layers().size());
ReferencedEnvelope rEnv = getDisplayArea();
// System.out.println(rEnv);
CoordinateReferenceSystem sourceCRS = rEnv.getCoordinateReferenceSystem();
CoordinateReferenceSystem targetCRS = crs;
MathTransform transform = CRS.findMathTransform(sourceCRS, targetCRS);
com.vividsolutions.jts.geom.Envelope newJtsEnv = JTS.transform(rEnv, transform);
ReferencedEnvelope newEnvelope = new ReferencedEnvelope(newJtsEnv, targetCRS);
content.getViewport().setBounds(newEnvelope);
fullExtent = null;
doSetDisplayArea(newEnvelope);
// ReferencedEnvelope displayArea =
getDisplayArea();
// System.out.println(displayArea);
} catch (Exception e) {
e.printStackTrace();
}
}
@SuppressWarnings("deprecation")
public void handleEvent(Event event) {
curPaintArea = getVisibleRect();
// System.out.println("event: " + event.type);
if (event.type == SWT.MouseDown) {
startX = event.x;
startY = event.y;
// start mouse activity
mouseDown = true;
} else if (event.type == SWT.MouseUp) {
endX = event.x;
endY = event.y;
boolean mouseWasMoved = startX != endX || startY != endY;
if (toolCanMove && mouseWasMoved) {
// if the tool is able to move draw the moved image
afterImageMove();
}
// stop mouse activity
mouseDown = false;
isDragging = false;
} else if (event.type == SWT.Paint) {
// System.out.println("PAINT CALLED (DOESN'T MEAN I'M DRAWING)");
if (acceptRepaintRequests) {
gc = event.gc;
// System.out.println(toolCanDraw + "/" + toolCanMove + "/" + isDragging + "/" +
// redrawBaseImage);
/*
* if the mouse is dragging and the current tool can
* move the map we just draw what we already have
* on white background. At the end of the moving
* we will take care of adding the missing pieces.
*/
if (toolCanMove && isDragging) {
// System.out.println("toolCanMove && isDragging");
if (gc != null && !gc.isDisposed() && swtImage != null) {
/*
* double buffer necessary, since the SWT.NO_BACKGROUND
* needed by the canvas to properly draw background, doesn't
* clean the parts outside the bounds of the moving panned image,
* giving a spilling image effect.
*/
Image tmpImage = new Image(getDisplay(), curPaintArea.width, curPaintArea.height);
GC tmpGc = new GC(tmpImage);
tmpGc.setBackground(white);
tmpGc.fillRectangle(0, 0, curPaintArea.width, curPaintArea.height);
tmpGc.drawImage(swtImage, imageOrigin.x, imageOrigin.y);
gc.drawImage(tmpImage, 0, 0);
tmpImage.dispose();
}
return;
}
/*
* if the mouse is dragging and the current tool can
* draw a boundingbox while dragging, we draw the box
* keeping the current drawn image
*/
if (toolCanDraw && toolManager.getCursorTool().isDrawing() && isDragging) {
// System.out.println("draw box: " + startX + "/" + startY + "/" + endX +
// "/" + endY);
if (swtImage != null) {
drawFinalImage(swtImage);
}
gc.setXORMode(true);
org.eclipse.swt.graphics.Color fC = gc.getForeground();
gc.setLineStyle(cursorToolLineStyle);
gc.setLineWidth(cursorToolLineWidth);
gc.setForeground(cursorToolColor);
gc.drawRectangle(startX, startY, endX - startX, endY - startY);
gc.setForeground(fC);
gc.setXORMode(false);
return;
}
if (!toolCanDraw && !toolCanMove && isDragging) {
return;
}
if (curPaintArea == null || content == null || renderer == null) {
return;
}
if (content.layers().size() == 0) {
// if no layers available, return only if there are also no overlays
gc.setForeground(yellow);
gc.fillRectangle(0, 0, curPaintArea.width + 1, curPaintArea.height + 1);
if (overlayImage == null) return;
}
final ReferencedEnvelope mapAOI = content.getViewport().getBounds();
if (mapAOI == null) {
return;
}
if (redrawBaseImage) {
MapPaneEvent ev = new MapPaneEvent(this, MapPaneEvent.Type.RENDERING_STARTED);
publishEvent(ev);
baseImage =
new BufferedImage(
curPaintArea.width + 1, curPaintArea.height + 1, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = baseImage.createGraphics();
g2d.fillRect(0, 0, curPaintArea.width + 1, curPaintArea.height + 1);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// renderer.setContext(context);
java.awt.Rectangle awtRectangle = Utils.toAwtRectangle(curPaintArea);
renderer.paint(g2d, awtRectangle, mapAOI, getWorldToScreenTransform());
// swtImage.dispose();
if (swtImage != null && !swtImage.isDisposed()) {
swtImage.dispose();
swtImage = null;
}
// System.out.println("READRAWBASEIMAGE");
swtImage =
new Image(
getDisplay(),
awtToSwt(baseImage, curPaintArea.width + 1, curPaintArea.height + 1));
}
if (swtImage != null) {
drawFinalImage(swtImage);
}
MapPaneEvent ev = new MapPaneEvent(this, MapPaneEvent.Type.RENDERING_STOPPED);
publishEvent(ev);
clearLabelCache = true;
onRenderingCompleted();
redrawBaseImage = false;
}
}
}
@Override
public void draw(Graphics2D g2d, MapContent map, MapViewport viewport) {
if (map != null && this.map == null) {
this.map = map;
}
if (viewport == null) {
viewport = map.getViewport(); // use the map viewport if one has not been provided
}
if (viewport == null || viewport.getScreenArea() == null) {
return; // renderer is not set up for use yet
}
if (collection != null && signsdb == null) {
signsdb = new Hashtable();
for (Iterator it1 = collection.iterator(); it1.hasNext(); ) {
SimpleFeature feature = (SimpleFeature) it1.next();
StructOffset offset = new StructOffset(0, 0, -1);
signsdb.put(feature, offset);
}
}
// 消除线条锯齿
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
DefaultFeatureCollection collection = this.getCollection();
// 遍历得到每个SimpleFeature
for (Iterator it1 = collection.iterator(); it1.hasNext(); ) {
SimpleFeature feature = (SimpleFeature) it1.next();
String id = feature.getID();
DirectPosition2D geoCoords = null;
DirectPosition2D signCoords = null;
Point point = (Point) feature.getAttribute("the_geom");
if (point != null) {
// 保存前一次刷新所处的位置
double x = point.getX();
double y = point.getY();
geoCoords = new DirectPosition2D(x, y);
}
// 经纬度坐标转换为屏幕坐标
MathTransform transform_math;
try {
transform_math =
CRS.findMathTransform(
DefaultGeographicCRS.WGS84, viewport.getCoordinateReferenceSystem(), true);
transform_math.transform(geoCoords, geoCoords);
AffineTransform transform_affine = viewport.getWorldToScreen();
transform_affine.transform(geoCoords, geoCoords);
g2d.setColor(Color.CYAN);
g2d.drawOval((int) geoCoords.x, (int) geoCoords.y, 10, 10);
// 如果被选中，填充空心成实体
if (id.equals(selectedId)) g2d.fillOval((int) geoCoords.x, (int) geoCoords.y, 10, 10);
if (signsdb.get(feature) != null) {
StructOffset offset = (StructOffset) (signsdb.get(feature));
double offsetX = offset.getX();
double offsetY = offset.getY();
signCoords = new DirectPosition2D(geoCoords.x + offsetX, geoCoords.y + offsetY);
}
if (signCoords != null) {
// 坐标默认偏移量<-25,-60>
int width = 60, height = 40;
g2d.setColor(Color.CYAN);
g2d.drawLine(
(int) geoCoords.x + 5,
(int) geoCoords.y + 5,
(int) signCoords.x + offsetX + width / 2,
(int) signCoords.y + offsetY + height / 2);
g2d.setColor(Color.BLACK);
g2d.drawRect((int) signCoords.x + offsetX, (int) signCoords.y + offsetY, width, height);
g2d.setColor(Color.ORANGE);
g2d.fillRect((int) signCoords.x + offsetX, (int) signCoords.y + offsetY, width, height);
g2d.setColor(Color.RED);
String signsText = (String) feature.getAttribute("name");
g2d.drawString(
signsText, (int) signCoords.x + offsetX + 2, (int) signCoords.y + offsetY + 12);
}
} catch (Exception e) {
e.printStackTrace();
}
}
// 绘制指南针
// int x[] = {20,10,20,30};
// int y[] = {10,20,30,20};
// int nPoint = 4;
// g2d.drawPolygon(x, y, nPoint);
String APP_PATH = "";
Bundle bundle = Platform.getBundle("MapControl");
try {
APP_PATH =
FileLocator.resolve(bundle.getEntry("")).getPath().substring(1) + "icons/map/compass.png";
} catch (Exception e) {
System.out.println(e.getMessage());
System.exit(1);
}
Image src = Toolkit.getDefaultToolkit().getImage(APP_PATH);
double dx = 0.72, dy = 0.72;
double x = 10, y = 10; // 指南针左上角
g2d.rotate(
-MainMapViewPart.rotateAngle + (Math.PI / 360) * 40,
x + dx * src.getWidth(null) / 2,
y + dy * src.getHeight(null) / 2);
AffineTransform affine = new AffineTransform();
affine.setToTranslation(x, y);
affine.scale(dx, dy); // 缩放图片
g2d.drawImage(src, affine, null);
}
