List of usage examples for com.google.gwt.canvas.dom.client Context2d drawImage
public final native void drawImage(ImageElement image, double dx, double dy, double dw, double dh) ;
From source file:com.fullmetalgalaxy.client.game.context.WgtContextMinimap.java
License:Open Source License
public void redraw() { assert GameEngine.model() != null; Game game = GameEngine.model().getGame(); // if( m_lastResfreshTurn != game.getCurrentTimeStep() || // m_lastResfreshGameId != game.getId() ) {//from www . ja v a 2s . c om m_lastResfreshTurn = game.getCurrentTimeStep(); m_lastResfreshGameId = game.getId(); canvas.setCoordinateSpaceWidth(game.getLandWidth() * 8); canvas.setCoordinateSpaceHeight(game.getLandHeight() * 8 + 4); Context2d gc = canvas.getContext2d(); gc.clearRect(0, 0, game.getLandWidth(), game.getLandHeight()); // draw lands ImageElement[] images = new ImageElement[LandType.values().length]; for (int iLand = 0; iLand < LandType.values().length; iLand++) { LandType land = LandType.values()[iLand]; Image img = new Image("/images/board/" + game.getPlanetType().getFolderName() + "/minimap/" + land.getImageName(game.getCurrentTide())); img.addLoadHandler(new LoadHandler() { @Override public void onLoad(LoadEvent event) { m_lastResfreshTurn = -1; m_lastResfreshGameId = -1; } }); images[iLand] = ImageElement.as(img.getElement()); Image.prefetch(img.getUrl()); } for (int ix = 0; ix < game.getLandWidth(); ix++) { for (int iy = 0; iy < game.getLandHeight(); iy++) { if (game.getLand(ix, iy) == LandType.Montain) { gc.drawImage(images[game.getLand(ix, iy).ordinal()], ix * 8, iy * 8 + (ix % 2) * 4, 8, 8); } else { gc.drawImage(images[game.getLand(ix, iy).ordinal()], ix * 8, iy * 8 + (ix % 2) * 4, 8, 8); } } } // draw units for (EbToken token : game.getSetToken()) { if (token.getLocation() == Location.Board && token.getColor() != EnuColor.None) { gc.drawImage(tokenImages[token.getColor()], token.getPosition().getX() * 8, token.getPosition().getY() * 8 + (token.getPosition().getX() % 2) * 4, 8, 8); for (AnBoardPosition position : token.getExtraPositions(game.getCoordinateSystem())) { gc.drawImage(tokenImages[token.getColor()], position.getX() * 8, position.getY() * 8 + (position.getX() % 2) * 4, 8, 8); } } } } if (game.getStatus() == GameStatus.Open || game.getStatus() == GameStatus.Pause) { m_panel.add(new Image(Icons.s_instance.pause32()), FmpConstant.miniMapWidth / 2 - 16, FmpConstant.miniMapHeight / 2 - 16); m_panel.add(new Label("En Pause"), 0, FmpConstant.miniMapHeight / 2 + 30); } else if (game.isFinished()) { m_panel.add(new Label("Partie termine"), 0, FmpConstant.miniMapHeight / 2 - 40); m_panel.add(new Image(Icons.s_instance.winner32()), FmpConstant.miniMapWidth / 2 - 16, FmpConstant.miniMapHeight / 2 - 16); String strWinner = ""; EbTeam winnerTeam = game.getWinnerTeam(); if ((winnerTeam != null)) { strWinner += winnerTeam.getCompany().getFullName() + ":\n"; for (EbRegistration registration : winnerTeam.getPlayers(game.getPreview())) if (registration.haveAccount()) { strWinner += registration.getAccount().getPseudo() + "\n"; } } m_panel.add(new Label(strWinner), 0, FmpConstant.miniMapHeight / 2 + 30); } }
From source file:com.google.gwt.maeglin89273.shared.test.volcanogame.component.Volcano.java
@Override public void draw(Context2d context) { Point p = getPositionAt(PositionType.NORTHWEST); context.save();/*from w w w . j ava 2 s . c o m*/ /*context.setShadowOffsetY(1); context.setShadowOffsetX(4); context.setShadowBlur(25); context.setShadowColor("hsla(22.5,50%,5%,0.3)"); context.setShadowColor("rgba(0,0,0,0.2)");*/ context.drawImage(image.getImage(), p.getX(), p.getY() - 17, width, height + 17); context.restore(); }
From source file:com.lambourg.webgallery.client.widgets.TitleBarIcon.java
License:GNU General Public License
private void draw() { Context2d ctx; Canvas buffer = Canvas.createIfSupported(); Image img;//w w w. ja va2s.c o m int size = Style.toPixelRatio(Style.titleIconSize); this.canvas.setCoordinateSpaceWidth(size); this.canvas.setCoordinateSpaceHeight(size + Style.toPixelRatio(1)); buffer.setCoordinateSpaceWidth(size); buffer.setCoordinateSpaceHeight(size); if (this.active) { img = this.imgActive; } else { img = this.imgNormal; } // We need to draw the icon itself in a separate buffer, and only // after apply the shadow. // The reason is that in order to draw the icon using the color we // want, we need to use composite operations, and this is not // compatible with the shadow effect we want. ctx = buffer.getContext2d(); if (this.over) { ctx.setFillStyle("#fff"); } else { ctx.setFillStyle("#ddd"); } ctx.fillRect(0, 0, size, size); ctx.setGlobalCompositeOperation(Composite.DESTINATION_ATOP); ctx.drawImage(ImageElement.as(img.getElement()), 0, 0, size, size); ctx.restore(); ctx = this.canvas.getContext2d(); ctx.setShadowBlur(0.0); ctx.setShadowColor("#333"); ctx.setShadowOffsetY(Style.toPixelRatio(1)); ctx.drawImage(buffer.getCanvasElement(), 0, 0, size, size); }
From source file:com.sencha.gxt.chart.client.draw.engine.Canvas2d.java
License:sencha.com license
/** * In the Canvas2d class, this method does more or less what renderSprite does in SVG and VML - it * actually renders the sprite to the dom. * @param sprite the sprite to draw// ww w . jav a 2s. co m */ protected void append(Sprite sprite) { if (sprite.isHidden() || sprite.getOpacity() == 0) { return; } Context2d ctx = getContext(); ctx.save(); //set global stuff, fill, stroke, clip, etc //clip - deal with translation or normal rectangle if (sprite.getClipRectangle() != null) { PreciseRectangle clip = sprite.getClipRectangle(); if (sprite.getScaling() != null || sprite.getTranslation() != null || sprite.getRotation() != null) { PathSprite transPath = new PathSprite(new RectangleSprite(clip)); transPath = transPath.map(sprite.transformMatrix()); appendPath(ctx, transPath); } else { ctx.beginPath(); ctx.rect(clip.getX(), clip.getY(), clip.getWidth(), clip.getHeight()); ctx.closePath(); } ctx.clip(); } if (sprite.getScaling() != null || sprite.getTranslation() != null || sprite.getRotation() != null || (component.isViewBox() && viewbox != null)) { Matrix matrix = sprite.transformMatrix(); if (matrix != null) { //TODO consider replacing this transform call with three distinct calls to translate/scale/rotate if cheaper ctx.transform(matrix.get(0, 0), matrix.get(1, 0), matrix.get(0, 1), matrix.get(1, 1), matrix.get(0, 2), matrix.get(1, 2)); } if (component.isViewBox() && viewbox != null) { double size = Math.min(getWidth() / viewbox.getWidth(), getHeight() / viewbox.getHeight()); ctx.scale(size, size); ctx.translate(-viewbox.getX(), -viewbox.getY()); } } //TODO see about caching colors via the dirty flag? If we don't use a color/gradient for a pass or three, dump it double opacity = Double.isNaN(sprite.getOpacity()) ? 1.0 : sprite.getOpacity(); PreciseRectangle untransformedBbox = sprite.getPathSprite().dimensions(); if (sprite.getStroke() != null && sprite.getStroke() != Color.NONE && sprite.getStrokeWidth() != 0) { ctx.setLineWidth(Double.isNaN(sprite.getStrokeWidth()) ? 1.0 : sprite.getStrokeWidth()); ctx.setStrokeStyle(getColor(sprite.getStroke(), untransformedBbox));//TODO read bbox from cache } if (sprite.getFill() != null && sprite.getFill() != Color.NONE) { ctx.setFillStyle(getColor(sprite.getFill(), untransformedBbox));//TODO read bbox from cache } if (sprite instanceof PathSprite) { appendPath(ctx, (PathSprite) sprite); } else if (sprite instanceof TextSprite) { TextSprite text = (TextSprite) sprite; //TODO style and weight ctx.setFont(text.getFontSize() + "px " + text.getFont()); ctx.setTextAlign(getTextAlign(text.getTextAnchor())); ctx.setTextBaseline(getTextBaseline(text.getTextBaseline())); ctx.fillText(text.getText(), text.getX(), text.getY()); } else if (sprite instanceof RectangleSprite) { RectangleSprite rect = (RectangleSprite) sprite; if (Double.isNaN(rect.getRadius()) || rect.getRadius() == 0) { if (sprite.getFill() != null && sprite.getFill() != Color.NONE) { ctx.setGlobalAlpha( Double.isNaN(sprite.getFillOpacity()) ? opacity : opacity * sprite.getFillOpacity()); ctx.fillRect(rect.getX(), rect.getY(), rect.getWidth(), rect.getHeight()); } if (sprite.getStroke() != null && sprite.getStroke() != Color.NONE && sprite.getStrokeWidth() != 0) { ctx.setGlobalAlpha(Double.isNaN(sprite.getStrokeOpacity()) ? opacity : opacity * sprite.getStrokeOpacity()); ctx.strokeRect(rect.getX(), rect.getY(), rect.getWidth(), rect.getHeight()); } } else { appendPath(ctx, rect.getPathSprite()); } } else if (sprite instanceof CircleSprite) { CircleSprite circle = (CircleSprite) sprite; ctx.beginPath(); ctx.arc(circle.getCenterX(), circle.getCenterY(), circle.getRadius(), 0, 2 * Math.PI); ctx.closePath(); if (sprite.getFill() != null && sprite.getFill() != Color.NONE) { ctx.setGlobalAlpha( Double.isNaN(sprite.getFillOpacity()) ? opacity : opacity * sprite.getFillOpacity()); ctx.fill(); } if (sprite.getStroke() != null && sprite.getStroke() != Color.NONE && sprite.getStrokeWidth() != 0) { ctx.setGlobalAlpha( Double.isNaN(sprite.getStrokeOpacity()) ? opacity : opacity * sprite.getStrokeOpacity()); ctx.stroke(); } } else if (sprite instanceof EllipseSprite) { appendPath(ctx, sprite.getPathSprite()); } else if (sprite instanceof ImageSprite) { ImageSprite image = (ImageSprite) sprite; ImageElement elt = Document.get().createImageElement(); elt.setSrc(image.getResource().getSafeUri().asString()); ctx.drawImage(elt, image.getX(), image.getY(), image.getWidth(), image.getHeight()); } ctx.restore(); if (!REDRAW_ALL) { renderedBbox.put(sprite, getBBox(sprite)); } sprite.clearDirtyFlags(); }
From source file:gov.nist.spectrumbrowser.client.SensorDataStream.java
License:Open Source License
@Override public void onMessage(String msg) { // TODO : Make this configurable. int nSpectrums = 200; // # of spectrums to show in the spectrogram window. double yScale = 0; try {/*from w w w. j a va 2s .c om*/ if (state == STATUS_MESSAGE_NOT_SEEN) { JSONValue statusMessage = JSONParser.parseLenient(msg); JSONObject jsonObj = statusMessage.isObject(); if (jsonObj.get("status").isString().stringValue().equals("NO_DATA")) { Window.alert("NO Data Available"); websocket.close(); spectrumBrowserShowDatasets.draw(); } else if (jsonObj.get("status").isString().stringValue().equals("OK")) { state = STATUS_MESSAGE_SEEN; } } else if (state == STATUS_MESSAGE_SEEN) { dataMessage = JSONParser.parseLenient(msg); logger.finer("msg = " + msg); JSONObject mpar = dataMessage.isObject().get("mPar").isObject(); nFrequencyBins = (int) mpar.get("n").isNumber().doubleValue(); // The default cutoff value (add 2 to the noise floor). cutoff = round(dataMessage.isObject().get("cutoff").isNumber().doubleValue()); if (cutoff < 0) cutoffTextBox.setText(Integer.toString((int) (cutoff - 0.5))); else cutoffTextBox.setText(Integer.toString((int) (cutoff + 0.5))); logger.finer("n = " + nFrequencyBins); minFreqHz = (long) mpar.get("fStart").isNumber().doubleValue(); maxFreqHz = (long) mpar.get("fStop").isNumber().doubleValue(); minFreq = (mpar.get("fStart").isNumber().doubleValue() / 1E6); maxFreq = mpar.get("fStop").isNumber().doubleValue() / 1E6; sys2detect = dataMessage.isObject().get("Sys2Detect").isString().stringValue(); // For computing the occupancy, determine the cutoff. logger.finer("fStart / fStop = " + Double.toString(minFreq) + " " + Double.toString(maxFreq)); Context2d ctx = frequencyValuesCanvas.getContext2d(); ctx.setTextAlign(TextAlign.LEFT); ctx.fillText(Double.toString(maxFreq), 0, 10, 100); ctx.fillText("Freq (MHz)", 0, SpectrumBrowser.SPEC_HEIGHT / 2 - 4, 100); ctx.fillText(Double.toString(minFreq), 0, SpectrumBrowser.SPEC_HEIGHT - 4, 100); spectrogramFragment = Canvas.createIfSupported(); spectrogramFragment.setWidth(SpectrumBrowser.SPEC_WIDTH + "px"); spectrogramFragment.setHeight(SpectrumBrowser.SPEC_HEIGHT + "px"); spectrogramFragment.setCoordinateSpaceWidth(SpectrumBrowser.SPEC_WIDTH); spectrogramFragment.setCoordinateSpaceHeight(SpectrumBrowser.SPEC_HEIGHT); spectrogramFragment.getCanvasElement().setWidth(SpectrumBrowser.SPEC_WIDTH); spectrogramFragment.getCanvasElement().setHeight(SpectrumBrowser.SPEC_HEIGHT); state = DATA_MESSAGE_SEEN; context2d.setFillStyle(CssColor.make("black")); context2d.fillRect(0, 0, SpectrumBrowser.SPEC_WIDTH, SpectrumBrowser.SPEC_HEIGHT); spectrogramFragment.setVisible(false); double timePerMeasurement = (float) mpar.get("tm").isNumber().doubleValue(); timeResolution = (float) (dataMessage.isObject().get("_spectrumsPerFrame").isNumber().doubleValue() * timePerMeasurement); HTML html = new HTML("<h2>Sensor Data Stream for " + sensorId + "</h2>"); titlePanel.add(html); HTML help = new HTML("<p>Click on spectrogram to freeze/unfreze. " + "Click on occupancy point to show spectrum</p>"); titlePanel.add(help); String filter = dataMessage.isObject().get(Defines.STREAMING_FILTER).isString().stringValue(); float freqResolution = round((float) (maxFreq - minFreq) / nFrequencyBins * 1000); html = new HTML("<h3>Resolution Bandwidth = " + freqResolution + " kHz.; Detected System = " + sys2detect + "; Time resoultion = " + AbstractSpectrumBrowserScreen.round2(timeResolution) + " s. Aggregation Filter = " + filter + " </h3>"); titlePanel.add(html); } else if (state == DATA_MESSAGE_SEEN) { String[] values = msg.split(","); int powerValues[] = new int[values.length]; int occupancyCount = 0; for (int i = 0; i < values.length; i++) { powerValues[i] = Integer.parseInt(values[i].trim()); if (powerValues[i] > cutoff) { occupancyCount++; } } float occupancy = round(((double) occupancyCount / (double) values.length) * 100); double xScale = ((double) SpectrumBrowser.SPEC_WIDTH / (double) nSpectrums); if (chartApiLoaded && occupancyDataTable == null) { occupancyDataTable = DataTable.create(); spectrumDataTable = DataTable.create(); occupancyPlotOptions = ScatterChartOptions.create(); occupancyPlotOptions.setBackgroundColor("#f0f0f0"); occupancyPlotOptions.setPointSize(5); occupancyPlotOptions.setHAxis(HAxis.create("Time (sec)")); VAxis vaxis = VAxis.create("Occupancy %"); vaxis.setMaxValue(100.0); vaxis.setMinValue(0); occupancyPlotOptions.setVAxis(vaxis); Legend legend = Legend.create(); legend.setPosition(LegendPosition.NONE); occupancyPlotOptions.setLegend(legend); spectrumPlotOptions = ScatterChartOptions.create(); spectrumPlotOptions.setBackgroundColor("#f0f0f0"); spectrumPlotOptions.setPointSize(5); spectrumPlotOptions.setHAxis(HAxis.create("Frequency (MHz)")); spectrumPlotOptions.setVAxis(VAxis.create("Power (dBm)")); legend = Legend.create(); legend.setPosition(LegendPosition.NONE); spectrumPlotOptions.setLegend(legend); occupancyPlot = new ScatterChart(); spectrumPlot = new ScatterChart(); occupancyPlot.addSelectHandler(new SelectHandler() { @Override public void onSelect(SelectEvent event) { if (!isFrozen) { logger.finer("Please Freeze canvas before clicking"); return; } else { double minPower = 10000; double maxPower = -10000; for (int i = 0; i < powerValuesList.size(); i++) { int[] data = powerValuesList.get(i); for (int j = 0; j < data.length; j++) { if (data[j] < minPower) { minPower = data[j]; } if (data[j] > maxPower) { maxPower = data[j]; } } } JsArray<Selection> selection = occupancyPlot.getSelection(); int row = selection.get(0).getRow(); logger.finer("Selected row" + row); int[] spectrumData = powerValuesList.get(row); double mhzPerDivision = (maxFreq - minFreq) / spectrumData.length; for (int i = 0; i < spectrumData.length; i++) { double freq = minFreq + mhzPerDivision * i; spectrumDataTable.setCell(i, 0, freq, freq + " Mhz"); spectrumDataTable.setCell(i, 1, spectrumData[i], spectrumData[i] + " dBm"); } HAxis haxis = HAxis.create("Freq. MHz."); haxis.setMinValue(minFreq); haxis.setMaxValue(maxFreq); VAxis vaxis = VAxis.create("Power (dBm)"); vaxis.setMinValue(minPower); vaxis.setMaxValue(maxPower); spectrumPlotOptions.setVAxis(vaxis); spectrumPlotOptions.setHAxis(haxis); spectrumPlot.draw(spectrumDataTable, spectrumPlotOptions); } } }); occupancyPlot.setPixelSize(SpectrumBrowser.SPEC_WIDTH + 260, SpectrumBrowser.SPEC_HEIGHT); occupancyPlot.setTitle("Occupancy"); spectrumPlot.setPixelSize(SpectrumBrowser.SPEC_WIDTH + 260, SpectrumBrowser.SPEC_HEIGHT); occupancyPanel.add(occupancyPlot); spectrumPanel.add(spectrumPlot); occupancyDataTable.addColumn(ColumnType.NUMBER, "Time (sec)"); occupancyDataTable.addColumn(ColumnType.NUMBER, "Occupancy %"); spectrumDataTable.addColumn(ColumnType.NUMBER, "Frequency (MHz)"); spectrumDataTable.addColumn(ColumnType.NUMBER, "Power (milliwatts)"); spectrumDataTable.setColumnLabel(0, "Frequency (MHz)"); spectrumDataTable.setColumnLabel(1, "Power (mw)"); occupancyDataTable.addRows(nSpectrums); spectrumDataTable.addRows(powerValues.length); DataView dataView = DataView.create(occupancyDataTable); for (int i = 0; i < nSpectrums; i++) { occupancyDataTable.setCell(i, 0, round3(i * timeResolution), round3(i * timeResolution) + " sec"); occupancyDataTable.setCell(i, 1, 0, "0 % occupancy"); occupancyPlot.draw(dataView, occupancyPlotOptions); } // Initialize the spectrum list for (int i = 0; i < nSpectrums; i++) { int[] dummyValues = new int[values.length]; for (int j = 0; j < dummyValues.length; j++) { dummyValues[j] = 0; } powerValuesList.add(dummyValues); } counter = nSpectrums - 1; } if (!isFrozen) { if (occupancyDataTable != null) { occupancyDataTable.removeRow(0); occupancyDataTable.addRow(); int rowCount = occupancyDataTable.getNumberOfRows(); counter++; for (int i = 0; i < nSpectrums; i++) { occupancyDataTable.setCell(i, 0, round3(i * timeResolution), round3(i * timeResolution) + " sec"); } occupancyDataTable.setCell(rowCount - 1, 1, occupancy, occupancy + " % occupancy"); occupancyPlot.redraw(); powerValuesList.remove(0); powerValuesList.add(powerValues); // occupancyPlot.draw(dataTable); } context2d.save(); Context2d tempContext = spectrogramFragment.getContext2d(); tempContext.drawImage(spectrogramCanvas.getCanvasElement(), 0, 0, (double) SpectrumBrowser.SPEC_WIDTH, (double) SpectrumBrowser.SPEC_HEIGHT); RootPanel.get().add(spectrogramFragment); // nSpectrums = powerValues.length / nFrequencyBins; yScale = (double) SpectrumBrowser.SPEC_HEIGHT / (double) nFrequencyBins; for (int i = 0; i < powerValues.length; i++) { CssColor color = colorMap.getColor(powerValues[i]); int row = (int) ((i % nFrequencyBins) * yScale); int col = (int) ((i / nFrequencyBins) * xScale); context2d.setFillStyle(color); double x = SpectrumBrowser.SPEC_WIDTH - col - xScale; double y = SpectrumBrowser.SPEC_HEIGHT - row - yScale; double w = xScale; double h = yScale; context2d.fillRect(x, y, w, h); } context2d.translate(-xScale, 0); context2d.drawImage(spectrogramFragment.getCanvasElement(), 0, 0, spectrogramFragment.getCanvasElement().getWidth(), spectrogramFragment.getCanvasElement().getHeight(), 0, 0, SpectrumBrowser.SPEC_WIDTH, SpectrumBrowser.SPEC_HEIGHT); // reset the transformation matrix context2d.setTransform(1, 0, 0, 1, 0, 0); RootPanel.get().remove(spectrogramFragment); } } } catch (Throwable ex) { logger.log(Level.SEVERE, "ERROR parsing data ", ex); } }
From source file:gwt.material.design.addins.client.camera.MaterialCameraCapture.java
License:Apache License
/** * Native call to capture the frame of the video stream. *//* w ww . ja v a 2 s . com*/ protected String nativeCaptureToDataURL(CanvasElement canvas, Element element, String mimeType) { VideoElement videoElement = (VideoElement) element; int width = videoElement.getVideoWidth(); int height = videoElement.getVideoHeight(); if (Double.isNaN(width) || Double.isNaN(height)) { width = videoElement.getClientWidth(); height = videoElement.getClientHeight(); } canvas.setWidth(width); canvas.setHeight(height); Context2d context = canvas.getContext2d(); context.drawImage(videoElement, 0, 0, width, height); return canvas.toDataUrl(mimeType); }
From source file:org.catrobat.html5player.client.Scene.java
License:Open Source License
/** * * @param imageElement//from ww w .j a v a 2 s . c o m * @param x * @param y * @param width * @param height */ public void drawImageElement(ImageElement imageElement, double x, double y, double width, double height, double alpha) { long start = System.currentTimeMillis(); Context2d context = sceneCanvas.getContext2d(); context.save(); context.setGlobalAlpha(alpha); context.drawImage(imageElement, x, y, width, height); context.restore(); CatrobatDebug.debug("drawImageElement-execution took " + (System.currentTimeMillis() - start) + " ms"); }
From source file:org.catrobat.html5player.client.Scene.java
License:Open Source License
/** * * @param imageElement// w ww .j av a 2 s.c o m * @param translateX * @param translateY * @param x * @param y * @param width * @param height * @param degrees * @param xSize * @param ySize */ public void drawImageElement(ImageElement imageElement, double translateX, double translateY, double x, double y, double width, double height, double degrees, double xSize, double ySize, double alpha) { long start = System.currentTimeMillis(); Context2d context = sceneCanvas.getContext2d(); context.save(); context.setGlobalAlpha(alpha); context.translate(translateX, translateY); context.rotate(Math.toRadians(degrees)); context.scale(xSize, ySize); context.drawImage(imageElement, x, y, width, height); //for testing - draws a rectangular around the sprite // context.strokeRect(x, y, width, height); // context.restore(); CatrobatDebug.debug("drawImageElement-execution took " + (System.currentTimeMillis() - start) + " ms"); }
From source file:org.catrobat.html5player.client.Scene.java
License:Open Source License
/** * * @param imageElement//from www . j a va 2 s .c o m * @param translateX * @param translateY * @param x * @param y * @param width * @param height * @param degrees * @param xSize * @param ySize */ public void drawImageElementBrightness(ImageElement imageElement, double translateX, double translateY, double x, double y, double width, double height, double degrees, double alpha, double brightness) throws JavaScriptException { Context2d context = sceneCanvas.getContext2d(); context.save(); context.setGlobalAlpha(alpha); context.translate(translateX, translateY); context.rotate(degrees * Math.PI / 180); try { Canvas adjustedImage = adjustImageBrightness(imageElement, brightness); context.drawImage(adjustedImage.getCanvasElement(), x, y, width, height); context.restore(); } catch (JavaScriptException exception) { context.restore(); throw exception; } }
From source file:org.catrobat.html5player.client.Sprite.java
License:Open Source License
/** * * @param relativeX/*from w ww . j a v a 2 s .c o m*/ * @param relativeY * @return */ public boolean processOnTouch(int relativeX, int relativeY) { //Create temp canvas with the current look only to determine click (alpha) Canvas temp = Canvas.createIfSupported(); temp.setWidth(Scene.get().getCanvas().getCoordinateSpaceWidth() + "px"); temp.setHeight(Scene.get().getCanvas().getCoordinateSpaceHeight() + "px"); temp.setCoordinateSpaceWidth(Scene.get().getCanvas().getCoordinateSpaceWidth()); temp.setCoordinateSpaceHeight(Scene.get().getCanvas().getCoordinateSpaceHeight()); LookData lookData = look.getLookData(); if (lookData == null) return false; double size = look.getSize(); double width = (double) lookData.getWidth() * size; double height = (double) lookData.getHeight() * size; double x = -width / 2; double y = -height / 2; Context2d context = temp.getContext2d(); context.translate(look.getXPosition(), look.getYPosition()); context.rotate((-look.getRotation()) * Math.PI / 180); context.drawImage((ImageElement) currentLook.getElement().cast(), x, y, width, height); if (context.getImageData(relativeX, relativeY, 1, 1).getAlphaAt(0, 0) == 0) { return false; } if (currentLook == null || !look.isVisible()) return false; double xPosition = look.getXPosition(); double yPosition = look.getYPosition(); double newSize = look.getSize(); LookData newLookData = look.getLookData(); double widthHalf = ((double) newLookData.getWidth() * newSize) / 2; double heightHalf = ((double) newLookData.getHeight() * newSize) / 2; if (xPosition + widthHalf > relativeX && xPosition - widthHalf < relativeX && yPosition + heightHalf > relativeY && yPosition - heightHalf < relativeY) { CatrobatDebug.info("Sprite " + this.name + " got touched"); return true; } return false; }