List of usage examples for org.jfree.chart.panel Overlay paintOverlay
public void paintOverlay(Graphics2D g2, ChartPanel chartPanel);
From source file:com.rapidminer.gui.new_plotter.engine.jfreechart.link_and_brush.LinkAndBrushChartPanel.java
@Override public void paintComponent(Graphics g) { super.paintComponent(g); if (getChart() == null) { return;/* ww w .j av a 2 s. co m*/ } Graphics2D g2 = (Graphics2D) g.create(); // first determine the size of the chart rendering area... Dimension size = getSize(); Insets insets = getInsets(); Rectangle2D available = new Rectangle2D.Double(insets.left, insets.top, size.getWidth() - insets.left - insets.right, size.getHeight() - insets.top - insets.bottom); // work out if scaling is required... boolean scale = false; double drawWidth = available.getWidth(); double drawHeight = available.getHeight(); setChartFieldValue(getChartFieldByName("scaleX"), 1.0); // this.scaleX = 1.0; setChartFieldValue(getChartFieldByName("scaleY"), 1.0); // this.scaleY = 1.0; if (drawWidth < getMinimumDrawWidth()) { setChartFieldValue(getChartFieldByName("scaleX"), drawWidth / getMinimumDrawWidth()); // this.scaleX = drawWidth / getMinimumDrawWidth(); drawWidth = getMinimumDrawWidth(); scale = true; } else if (drawWidth > getMaximumDrawWidth()) { setChartFieldValue(getChartFieldByName("scaleX"), drawWidth / getMaximumDrawWidth()); // this.scaleX = drawWidth / getMaximumDrawWidth(); drawWidth = getMaximumDrawWidth(); scale = true; } if (drawHeight < getMinimumDrawHeight()) { setChartFieldValue(getChartFieldByName("scaleY"), drawHeight / getMinimumDrawHeight()); // this.scaleY = drawHeight / getMinimumDrawHeight(); drawHeight = getMinimumDrawHeight(); scale = true; } else if (drawHeight > getMaximumDrawHeight()) { setChartFieldValue(getChartFieldByName("scaleY"), drawHeight / getMaximumDrawHeight()); // this.scaleY = drawHeight / getMaximumDrawHeight(); drawHeight = getMaximumDrawHeight(); scale = true; } Rectangle2D chartArea = new Rectangle2D.Double(0.0, 0.0, drawWidth, drawHeight); // are we using the chart buffer? if ((Boolean) getChartFieldValueByName("useBuffer")) { // do we need to resize the buffer? if ((getChartFieldValueByName("chartBuffer") == null) || ((Integer) getChartFieldValueByName("chartBufferWidth") != available.getWidth()) || ((Integer) getChartFieldValueByName("chartBufferHeight") != available.getHeight())) { setChartFieldValue(getChartFieldByName("chartBufferWidth"), (int) available.getWidth()); // this.chartBufferWidth = (int) available.getWidth(); setChartFieldValue(getChartFieldByName("chartBufferHeight"), (int) available.getHeight()); // this.chartBufferHeight = (int) available.getHeight(); GraphicsConfiguration gc = g2.getDeviceConfiguration(); setChartFieldValue(getChartFieldByName("chartBuffer"), gc.createCompatibleImage((Integer) getChartFieldValueByName("chartBufferWidth"), (Integer) getChartFieldValueByName("chartBufferHeight"), Transparency.TRANSLUCENT)); // this.chartBuffer = gc.createCompatibleImage(this.chartBufferWidth, // this.chartBufferHeight, Transparency.TRANSLUCENT); setRefreshBuffer(true); } // do we need to redraw the buffer? if (getRefreshBuffer()) { setRefreshBuffer(false); // clear the flag Rectangle2D bufferArea = new Rectangle2D.Double(0, 0, (Integer) getChartFieldValueByName("chartBufferWidth"), (Integer) getChartFieldValueByName("chartBufferHeight")); Graphics2D bufferG2 = (Graphics2D) ((Image) getChartFieldValueByName("chartBuffer")).getGraphics(); Rectangle r = new Rectangle(0, 0, (Integer) getChartFieldValueByName("chartBufferWidth"), (Integer) getChartFieldValueByName("chartBufferHeight")); bufferG2.setPaint(getBackground()); bufferG2.fill(r); if (scale) { AffineTransform saved = bufferG2.getTransform(); AffineTransform st = AffineTransform.getScaleInstance( (Double) getChartFieldValueByName("scaleX"), (Double) getChartFieldValueByName("scaleY")); bufferG2.transform(st); getChart().draw(bufferG2, chartArea, getAnchor(), getChartRenderingInfo()); bufferG2.setTransform(saved); } else { getChart().draw(bufferG2, bufferArea, getAnchor(), getChartRenderingInfo()); } } // zap the buffer onto the panel... g2.drawImage((Image) getChartFieldValueByName("chartBuffer"), insets.left, insets.top, this); } // or redrawing the chart every time... else { AffineTransform saved = g2.getTransform(); g2.translate(insets.left, insets.top); if (scale) { AffineTransform st = AffineTransform.getScaleInstance((Double) getChartFieldValueByName("scaleX"), (Double) getChartFieldValueByName("scaleY")); g2.transform(st); } getChart().draw(g2, chartArea, getAnchor(), getChartRenderingInfo()); g2.setTransform(saved); } Iterator iterator = ((List) getChartFieldValueByName("overlays")).iterator(); while (iterator.hasNext()) { Overlay overlay = (Overlay) iterator.next(); overlay.paintOverlay(g2, this); } // redraw the zoom rectangle (if present) - if useBuffer is false, // we use XOR so we can XOR the rectangle away again without redrawing // the chart drawZoomRectangle(g2, !(Boolean) getChartFieldValueByName("useBuffer")); g2.dispose(); setAnchor(null); setVerticalTraceLine(null); setHorizontalTraceLine(null); }
From source file:com.rapidminer.gui.plotter.charts.AbstractChartPanel.java
/** * Paints the component by drawing the chart to fill the entire component, but allowing for the * insets (which will be non-zero if a border has been set for this component). To increase * performance (at the expense of memory), an off-screen buffer image can be used. * //w ww. ja va2 s.c o m * @param g * the graphics device for drawing on. */ @Override public void paintComponent(Graphics g) { if (this.chart == null) { return; } Graphics2D g2 = (Graphics2D) g.create(); // first determine the size of the chart rendering area... Dimension size = getSize(); Insets insets = getInsets(); Rectangle2D available = new Rectangle2D.Double(insets.left, insets.top, size.getWidth() - insets.left - insets.right, size.getHeight() - insets.top - insets.bottom); // work out if scaling is required... boolean scale = false; double drawWidth = available.getWidth(); double drawHeight = available.getHeight(); this.scaleX = 1.0; this.scaleY = 1.0; if (drawWidth < this.minimumDrawWidth) { this.scaleX = drawWidth / this.minimumDrawWidth; drawWidth = this.minimumDrawWidth; scale = true; } else if (drawWidth > this.maximumDrawWidth) { this.scaleX = drawWidth / this.maximumDrawWidth; drawWidth = this.maximumDrawWidth; scale = true; } if (drawHeight < this.minimumDrawHeight) { this.scaleY = drawHeight / this.minimumDrawHeight; drawHeight = this.minimumDrawHeight; scale = true; } else if (drawHeight > this.maximumDrawHeight) { this.scaleY = drawHeight / this.maximumDrawHeight; drawHeight = this.maximumDrawHeight; scale = true; } Rectangle2D chartArea = new Rectangle2D.Double(0.0, 0.0, drawWidth, drawHeight); // redrawing the chart every time... AffineTransform saved = g2.getTransform(); g2.translate(insets.left, insets.top); if (scale) { AffineTransform st = AffineTransform.getScaleInstance(this.scaleX, this.scaleY); g2.transform(st); } this.chart.draw(g2, chartArea, this.anchor, this.info); g2.setTransform(saved); Iterator<Overlay> iterator = this.overlays.iterator(); while (iterator.hasNext()) { Overlay overlay = iterator.next(); overlay.paintOverlay(g2, this); } // redraw the zoom rectangle (if present) - if useBuffer is false, // we use XOR so we can XOR the rectangle away again without redrawing // the chart drawSelectionRectangle(g2); g2.dispose(); this.anchor = null; this.verticalTraceLine = null; this.horizontalTraceLine = null; }