@Override
public void getRgb(
int startX, int startY, int width, int height, int[] rgbArray, int offset, int scanSize) {
Asserts.checkState(isReady(), "Cannot getRgb() a non-ready image");
if (canvas == null) {
canvas = img.getOwnerDocument().createCanvasElement();
canvas.setHeight(img.getHeight());
canvas.setWidth(img.getWidth());
canvas.getContext2d().drawImage(img, 0, 0);
// img.getOwnerDocument().getBody().appendChild(canvas);
}
Context2d ctx = canvas.getContext2d();
ImageData imageData = ctx.getImageData(startX, startY, width, height);
CanvasPixelArray pixelData = imageData.getData();
int i = 0;
int dst = offset;
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
int r = pixelData.get(i++);
int g = pixelData.get(i++);
int b = pixelData.get(i++);
int a = pixelData.get(i++);
rgbArray[dst + x] = a << 24 | r << 16 | g << 8 | b;
}
dst += scanSize;
}
}
public static final String toDataURL(final ImageElement element) {
final ScratchCanvas canvas = new ScratchCanvas(element.getWidth(), element.getHeight());
canvas.getContext().drawImage(element, 0, 0);
return canvas.toDataURL();
}
public void triggerSingleImageLoading(String imageFileName, GeoImage geoi) {
ImageElement img = externalImageTable.get(imageFileName);
ImageWrapper.nativeon(img, "load", new ImageLoadCallback2(geoi));
ImageErrorCallback2 i2 = new ImageErrorCallback2(geoi);
ImageWrapper.nativeon(img, "error", i2);
ImageWrapper.nativeon(img, "abort", i2);
img.setSrc(externalImageSrcs.get(imageFileName));
}
public static final String toDataURL(ImageElement element, DataURLType mimetype, double quality) {
if (null == mimetype) {
mimetype = DataURLType.PNG;
}
ScratchCanvas canvas = new ScratchCanvas(element.getWidth(), element.getHeight());
canvas.getContext().drawImage(element, 0, 0, element.getWidth(), element.getHeight());
return canvas.toDataURL(mimetype, quality);
}
private void resetIcon() {
if (null == product.getIconKey()) {
icon.setSrc("images/noicon.gif");
containerPanel.getWidget(0).setVisible(false);
} else {
containerPanel.getWidget(0).setVisible(true);
icon.setSrc(
"gwt_marketplace/productImage?key=" + product.getId() + "&ik=" + product.getIconKey());
icon.getStyle().setDisplay(Display.BLOCK);
}
}
/**
* Img elements needs some special handling in custom layout. Img elements will get their onload
* events sunk. This way custom layout can notify parent about possible size change.
*/
private void initImgElements() {
NodeList<Element> nodeList = getElement().getElementsByTagName("IMG");
for (int i = 0; i < nodeList.getLength(); i++) {
ImageElement img = ImageElement.as(nodeList.getItem(i));
DOM.sinkEvents(img, Event.ONLOAD);
}
}
/** Tests createLoadEvent(). */
public void testTriggerLoadEvent() {
ImgEventListener listener = new ImgEventListener("load");
Event.setEventListener(parent, listener);
Event.setEventListener(img, listener);
img.dispatchEvent(Document.get().createLoadEvent());
assertTrue("Expected img to receive event", listener.imgReceived);
}
/**
* Tests createErrorEvent().
*
* <p>Failed in all modes due to HtmlUnit bug: https://sourceforge.net/tracker/?func
* =detail&aid=2888342&group_id=47038&atid=448266
*/
@DoNotRunWith({Platform.HtmlUnitBug})
public void testTriggerErrorEvent() {
ImgEventListener listener = new ImgEventListener("error");
Event.setEventListener(parent, listener);
Event.setEventListener(img, listener);
img.dispatchEvent(Document.get().createErrorEvent());
assertTrue("Expected child to receive event", listener.imgReceived);
}
@Override
public void reset() {
Preconditions.checkState(this.listener != null);
this.listener = null;
avatar.setSrc(null);
name.setInnerText(null);
address.setInnerText(null);
for (Widget child : self.getChildren()) {
child.removeFromParent();
}
}
public ImageElement getInternalImage(ImageResource resource) {
ImageElement img = Document.get().createImageElement();
img.setSrc(resource.getSafeUri().asString());
return img;
}
@Override
public void draw(Context2d context) {
String file = getEnvObject().getCurrentRepresentation().getIcon();
Path2D objectPath =
DrawingUtils.freedomPolygonToPath(
(FreedomPolygon) getEnvObject().getCurrentRepresentation().getShape());
Rectangle2D box = objectPath.getBounds2D();
objectBounds = objectPath.getBounds();
rotation = getEnvObject().getCurrentRepresentation().getRotation();
dx = getEnvObject().getCurrentRepresentation().getOffset().getX();
dy = getEnvObject().getCurrentRepresentation().getOffset().getY();
context.translate(dx, dy);
context.rotate(rotation);
WebGraphics g = new WebGraphics(context);
if (ImageUtils.CachedImages.containsKey(OBJECT_PATH + file)) {
Image im = ImageUtils.CachedImages.get(OBJECT_PATH + file);
ImageElement ie = ImageElement.as(im.getElement());
// ghostPath = new Rectangle(ie.getWidth(),ie.getHeight());
ghostPath = objectBounds;
context.drawImage(ie, 0, 0, box.getWidth(), box.getHeight());
// draw box surronding object
// draw the border
context.setLineWidth(1);
g.setColor(new Color(137, 174, 32));
g.draw(box);
} else {
// //TODO: Cache path
// Paint paint = new Paint();
// paint.setStyle(Style.FILL);
//
// ghostPath = new Path();
// objectPath.transform(drawingMatrix, ghostPath);
// int fillColor=-1;
// try
// {
// fillColor =
// Color.parseColor(getEnvObject().getCurrentRepresentation().getFillColor());
// paint.setColor(fillColor);
// canvas.drawPath(ghostPath, paint);
// }
// catch(IllegalArgumentException ex)
// {
// System.out.println("ParseColor exception in fill");
// }
// int borderColor=-1;
// try
// {
// borderColor =
// Color.parseColor(getEnvObject().getCurrentRepresentation().getBorderColor());
// paint.setColor(borderColor);
// paint.setStyle(Style.STROKE);
// canvas.drawPath(ghostPath, paint);
// }
// catch(IllegalArgumentException ex)
// {
// System.out.println("ParseColor exception in border");
// }
}
context.rotate(-rotation);
context.translate(-dx, -dy);
}
/**
* Draws an input image at a given position on the canvas. Resizes image according to specified
* width and height.
*
* <p>We recommend that the pixel and coordinate spaces be the same to provide consistent
* positioning and scaling results
*
* @param img The image to be drawn
* @param offsetX x coord of the top left corner in the destination space
* @param offsetY y coord of the top left corner in the destination space
* @param width the size of the image in the destination space
* @param height the size of the image in the destination space
*/
public void drawImage(
ImageElement img, double offsetX, double offsetY, double width, double height) {
impl.drawImage(img, 0, 0, img.getWidth(), img.getHeight(), offsetX, offsetY, width, height);
}
/**
* Draws an input image to a specified position on the canvas. Size defaults to the default
* dimensions of the image.
*
* @param img the image to be drawn
* @param offsetX x coord of the top left corner in the destination space
* @param offsetY y coord of the top left corner in the destination space
*/
public void drawImage(ImageElement img, double offsetX, double offsetY) {
drawImage(img, offsetX, offsetY, img.getWidth(), img.getHeight());
}
@SuppressWarnings("unused")
private void firePopupImageLoadedEvent(ImageElement image) {
EventBus.INSTANCE.fireEvent(
new PopupImageLoadedEvent(image.getOffsetWidth(), image.getOffsetHeight()));
}
@Override
public float width() {
return img == null ? 0 : scale.invScaled(img.getWidth());
}
@Override
public float height() {
return img == null ? 0 : scale.invScaled(img.getHeight());
}
@Override
public void setAvatarUrl(String url) {
avatar.setSrc(url);
}
public GwtBitmap(Image data) {
ImageElement imageElement = ImageElement.as(data.getElement());
pixmap = new Pixmap(imageElement);
image = data;
}
