--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.scenegraph.utils;\r
+\r
+import java.awt.Color;\r
+import java.awt.Graphics2D;\r
+import java.awt.Point;\r
+import java.awt.RenderingHints;\r
+import java.awt.geom.AffineTransform;\r
+import java.awt.geom.Rectangle2D;\r
+import java.util.ArrayList;\r
+import java.util.Arrays;\r
+import java.util.HashMap;\r
+import java.util.List;\r
+import java.util.Map;\r
+\r
+import com.kitfox.svg.SVGDiagram;\r
+\r
+/**\r
+ * Video-ram cache suitable for rasterized PaintableSymbols scalable vector graphics.\r
+ * <p>\r
+ * This implementation rasterizes the same symbol from different mip map levels.\r
+ * \r
+ * @see VRamImage\r
+ * @author Toni Kalajainen\r
+ */\r
+public class MipMapBufferedImage extends BufferedImage {\r
+\r
+ /** Extra margin to the bounds reported by batik */\r
+ public static final double MARGIN_PERCENT = 3;\r
+\r
+ // Was 800 in VRam.. ?\r
+ public static final double MAX_DIMENSION = 600;\r
+ public static final double MIN_DIMENSION = 4;\r
+\r
+ //Shape outline;\r
+\r
+ Map<Double, IRaster> rasters = new HashMap<Double, IRaster>();\r
+ double[] resolutions;\r
+ double minResolution, maxResolution;\r
+\r
+ /**\r
+ * @param original\r
+ * @param imageBounds\r
+ * @param referenceSize\r
+ * \r
+ * FIXME: shouldn't be SVG dependent\r
+ */\r
+ public MipMapBufferedImage(SVGDiagram original, Rectangle2D imageBounds, Point referenceSize) {\r
+ super(original, imageBounds, referenceSize);\r
+ initializeRasters();\r
+ }\r
+\r
+ private void initializeRasters() {\r
+ List<Double> resolutions = new ArrayList<Double>();\r
+\r
+ if (referenceSize != null && !imageBounds.isEmpty()) {\r
+ // Init rasters - they are built on-demand\r
+ double maxResolution = maxResolution();\r
+ double minResolution = minResolution();\r
+ double fitResolution = fitResolution(referenceSize);\r
+ double resolution = fitResolution;\r
+ while (true) {\r
+ double next = resolution * 2;\r
+ if (next > maxResolution)\r
+ break;\r
+ resolution = next;\r
+ }\r
+ while (resolution > minResolution) {\r
+ IRaster r = createRaster(resolution);\r
+ rasters.put(resolution, r);\r
+ resolutions.add(resolution);\r
+ resolution /= 2;\r
+ }\r
+ } else {\r
+ // Init rasters - they are built on-demand\r
+ double maxResolution = maxResolution();\r
+ double minResolution = minResolution();\r
+ double resolution = maxResolution;\r
+ while (resolution > minResolution) {\r
+ IRaster r = createRaster(resolution);\r
+ rasters.put(resolution, r);\r
+ resolutions.add(resolution);\r
+ resolution /= 2;\r
+ }\r
+ }\r
+\r
+ // arraylist -> array\r
+ this.resolutions = new double[resolutions.size()];\r
+ for (int i=0; i<resolutions.size(); i++)\r
+ this.resolutions[i] = resolutions.get(resolutions.size()-1-i);\r
+ this.minResolution = this.resolutions[0];\r
+ this.maxResolution = this.resolutions[this.resolutions.length-1];\r
+ //System.out.println("RESOLUTIONS: " + Arrays.toString(this.resolutions));\r
+ }\r
+\r
+ protected IRaster createRaster(double resolution) {\r
+ return new BufferedRaster(resolution);\r
+ }\r
+\r
+ private double fitResolution(Point p)\r
+ {\r
+ double wid = imageBounds.getWidth();\r
+ double hei = imageBounds.getHeight();\r
+ double rx = p.x / wid;\r
+ double ry = p.y / hei;\r
+ return Math.min(rx, ry);\r
+ }\r
+\r
+ private double maxResolution()\r
+ {\r
+ double wid = imageBounds.getWidth();\r
+ double hei = imageBounds.getHeight();\r
+ return MAX_DIMENSION/Math.sqrt(wid*hei);\r
+ }\r
+\r
+ private double minResolution()\r
+ {\r
+ double wid = imageBounds.getWidth();\r
+ double hei = imageBounds.getHeight();\r
+ return MIN_DIMENSION/Math.sqrt(wid*hei);\r
+ }\r
+\r
+ protected double requiredResolution(AffineTransform at)\r
+ {\r
+ double m00 = at.getScaleX();\r
+ double m11 = at.getScaleY();\r
+ double m10 = at.getShearY();\r
+ double m01 = at.getShearX();\r
+ // Project unit vector to canvas\r
+ double sx = Math.sqrt( m00*m00 + m10*m10 );\r
+ double sy = Math.sqrt( m01*m01 + m11*m11 );\r
+ return Math.max(sx, sy);\r
+ //return Math.sqrt(sx*sx+sy*sy);\r
+ }\r
+\r
+ protected double findClosestResolution(double resolution)\r
+ {\r
+ int index = Arrays.binarySearch(resolutions, resolution);\r
+ if (index>=0) return resolutions[index];\r
+ index = -(index+1);\r
+\r
+ if (index>=resolutions.length) index = resolutions.length-1;\r
+ if (index<0) index = 0;\r
+ return resolutions[index];\r
+ }\r
+\r
+ @Override\r
+ public void paint(Graphics2D g) {\r
+ // Quality rendering requested, do not render from cache\r
+ //QualityHints.HIGH_QUALITY_HINTS.setQuality(g);\r
+ if (g.getRenderingHint(RenderingHints.KEY_RENDERING) == RenderingHints.VALUE_RENDER_QUALITY)\r
+ {\r
+ try {\r
+ source.render(g);\r
+ } catch (Exception e) {\r
+ // NOTE: Catching Exception instead of SVGException due to an\r
+ // NPE when encountering invalid color SVG definitions (e.g.\r
+ // rgb(256,-1,0))\r
+ e.printStackTrace();\r
+ }\r
+ return;\r
+ }\r
+\r
+ double requiredResolution = requiredResolution(g.getTransform());\r
+ // This scale makes the mipmapped painting use a mipmap that is smaller\r
+ // than the requested image pixel size in cases where the required\r
+ // resolution only slightly exceeds the size of an available mipmap.\r
+ requiredResolution *= 0.95;\r
+ //System.out.println("required resolution: " + requiredResolution);\r
+\r
+ if (requiredResolution > getRasterRenderingThresholdResolution()) {\r
+ Graphics2D g2d = (Graphics2D) g.create();\r
+ setupSourceRender(g2d);\r
+ try {\r
+ source.render(g2d);\r
+ } catch (Exception e) {\r
+ // NOTE: Catching Exception instead of SVGException due to an\r
+ // NPE when encountering invalid color SVG definitions (e.g.\r
+ // rgb(256,-1,0))\r
+ e.printStackTrace();\r
+ } finally {\r
+ g2d.dispose();\r
+ }\r
+ } else {\r
+ Object origInterpolationHint = g.getRenderingHint(RenderingHints.KEY_INTERPOLATION);\r
+ if (origInterpolationHint==null)\r
+ origInterpolationHint = RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR;\r
+\r
+ g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);\r
+\r
+ double closestResolution = findClosestResolution(requiredResolution);\r
+ //System.out.println(" resolutions: " + Arrays.toString(resolutions));\r
+ //System.out.println(" closest resolution: " + closestResolution);\r
+ IRaster raster = rasters.get(closestResolution);\r
+ try {\r
+ raster.paint( g );\r
+ } finally {\r
+ g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, origInterpolationHint);\r
+ }\r
+ }\r
+ }\r
+\r
+ protected void setupSourceRender(Graphics2D g2d) {\r
+ g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED);\r
+ g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);\r
+ g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);\r
+ g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);\r
+ g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);\r
+ g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);\r
+ }\r
+\r
+ protected double getRasterRenderingThresholdResolution() {\r
+ return maxResolution;\r
+ }\r
+\r
+ @Override\r
+ public synchronized void releaseRaster() {\r
+ for (IRaster r : rasters.values())\r
+ r.release();\r
+ }\r
+\r
+ static interface IRaster extends Comparable<IRaster> {\r
+ double getResolution();\r
+ void paint(Graphics2D g);\r
+ void release();\r
+ }\r
+\r
+ static abstract class Raster implements IRaster {\r
+ protected final double resolution;\r
+\r
+ public Raster(double resolution) {\r
+ this.resolution = resolution;\r
+ }\r
+\r
+ public double getResolution() {\r
+ return resolution;\r
+ }\r
+\r
+ public int compareTo(IRaster o) {\r
+ double r = getResolution();\r
+ double or = o.getResolution();\r
+ if (or < r)\r
+ return -1;\r
+ if (or > r)\r
+ return 1;\r
+ return 0;\r
+ }\r
+ }\r
+\r
+ class BufferedRaster extends Raster {\r
+ java.awt.image.BufferedImage image;\r
+ //int widMargin, heiMargin;\r
+ int wid, hei;\r
+\r
+ BufferedRaster(double resolution) {\r
+ super(resolution);\r
+ double wid = imageBounds.getWidth();\r
+ double hei = imageBounds.getHeight();\r
+ this.wid = (int) (wid * resolution);\r
+ this.hei = (int) (hei * resolution);\r
+// widMargin = (int) (wid * resolution * (MARGIN_PERCENT/100)) +1;\r
+// heiMargin = (int) (hei * resolution * (MARGIN_PERCENT/100)) +1;\r
+ }\r
+\r
+ synchronized java.awt.image.BufferedImage getOrCreate()\r
+ {\r
+ if (image!=null) return image;\r
+ image = new java.awt.image.BufferedImage(\r
+ (wid+0*2+1),\r
+ (hei+0*2+1),\r
+ java.awt.image.BufferedImage.TYPE_INT_ARGB);\r
+\r
+ Graphics2D target = image.createGraphics();\r
+ target.setBackground(new Color(255,255,255,0));\r
+ target.clearRect(0, 0, image.getWidth(), image.getHeight());\r
+\r
+ target.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);\r
+ target.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);\r
+ target.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);\r
+ target.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);\r
+\r
+// target.translate(widMargin, heiMargin);\r
+ target.scale(resolution, resolution);\r
+ target.translate(-imageBounds.getMinX(), -imageBounds.getMinY());\r
+ try {\r
+ source.render(target);\r
+ } catch (Exception e) {\r
+ // TODO Auto-generated catch block\r
+ // NOTE: Catching Exception instead of SVGException due to an\r
+ // NPE when encountering invalid color SVG definitions (e.g.\r
+ // rgb(256,-1,0))\r
+ e.printStackTrace();\r
+ }\r
+// source.paint(\r
+// new GraphicsContextImpl(target, new Rectangle2D.Double(0,0, image.getWidth(), image.getHeight()), null)\r
+// );\r
+ target.dispose();\r
+\r
+ return image;\r
+ }\r
+\r
+ public void paint(Graphics2D g) {\r
+ java.awt.image.BufferedImage image = getOrCreate();\r
+ if (image==null)\r
+ {\r
+ try {\r
+ source.render(g);\r
+ } catch (Exception e) {\r
+ // TODO Auto-generated catch block\r
+ // NOTE: Catching Exception instead of SVGException due to an\r
+ // NPE when encountering invalid color SVG definitions (e.g.\r
+ // rgb(256,-1,0))\r
+ e.printStackTrace();\r
+ }\r
+ return;\r
+ }\r
+ AffineTransform af = g.getTransform();\r
+ Object rh = g.getRenderingHint(RenderingHints.KEY_INTERPOLATION);\r
+ try {\r
+ /// Bicubic interpolation is very slow with opengl pipeline\r
+ if (rh == RenderingHints.VALUE_INTERPOLATION_BICUBIC)\r
+ g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,\r
+ RenderingHints.VALUE_INTERPOLATION_BILINEAR);\r
+ g.translate(imageBounds.getMinX(), imageBounds.getMinY());\r
+ g.scale(1/resolution, 1/resolution);\r
+// g.translate(-widMargin, -heiMargin);\r
+ g.drawImage(image, 0, 0, null);\r
+ } finally {\r
+ g.setTransform(af);\r
+ g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, rh);\r
+ }\r
+ }\r
+\r
+ public void release() {\r
+ image = null;\r
+ }\r
+ }\r
+\r
+}\r
Code Review / simantics / platform.git / blobdiff