generalize caching

diylc/diylc-core/src/org/diylc/components/AbstractComponent.java

@@ -252,4 +252,9 @@ public abstract class AbstractComponent<T> implements IDIYComponent<T> {
   public boolean canPointMoveFreely(int pointIndex) {   
     return true;
   }
+  
+  @Override
+  public Rectangle2D getCachingBounds() {
+    return null;
+  }
 }

diylc/diylc-core/src/org/diylc/components/AbstractCurvedComponent.java

@@ -25,6 +25,7 @@ import java.awt.Point;
 import java.awt.geom.CubicCurve2D;
 import java.awt.geom.Path2D;
 import java.awt.geom.Point2D;
+import java.awt.geom.Rectangle2D;
 
 import org.apache.log4j.Logger;
 import org.diylc.appframework.miscutils.ConfigurationManager;
@@ -361,6 +362,28 @@ public abstract class AbstractCurvedComponent<T> extends AbstractTransparentComp
     }
   }
   
+  @Override
+  public Rectangle2D getCachingBounds() {
+    int minX = Integer.MAX_VALUE;
+    int maxX = Integer.MIN_VALUE;
+    int minY = Integer.MAX_VALUE;
+    int maxY = Integer.MIN_VALUE;
+    int margin = 50; // hard coded, replace with something meaningful
+    for (int i = 0; i < getControlPointCount(); i++) {
+      Point p = getControlPoint(i);
+      if (p.x < minX)
+        minX = p.x;
+      if (p.x > maxX)
+        maxX = p.x;
+      if (p.y < minY)
+        minY = p.y;
+      if (p.y > maxY)
+        maxY = p.y;
+    }
+    
+    return new Rectangle2D.Double(minX - margin, minY - margin, maxX - minX + 2 * margin, maxY - minY + 2 * margin);
+  }
+
   public enum PointCount {
     TWO(2), THREE(3), FOUR(4), FIVE(5), SEVEN(7);
 

diylc/diylc-core/src/org/diylc/core/IDIYComponent.java

@@ -23,6 +23,7 @@ package org.diylc.core;
 
 import java.awt.Graphics2D;
 import java.awt.Point;
+import java.awt.geom.Rectangle2D;
 import java.io.Serializable;
 
 import org.diylc.core.annotations.ComponentDescriptor;
@@ -190,4 +191,10 @@ public interface IDIYComponent<T> extends Serializable, Cloneable {
    * @return
    */
   boolean equalsTo(IDIYComponent<?> other);
+
+  /**
+   * Used only if {@link ComponentDescriptor#enableCache()} is set to true. 
+   * @return
+   */
+  Rectangle2D getCachingBounds();
 }

diylc/diylc-core/src/org/diylc/presenter/Counter.java

@@ -0,0 +1,44 @@
+/*
+ * 
+ * DIY Layout Creator (DIYLC). Copyright (c) 2009-2018 held jointly by the individual authors.
+ * 
+ * This file is part of DIYLC.
+ * 
+ * DIYLC is free software: you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License as published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * DIYLC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License along with DIYLC. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+package org.diylc.presenter;
+
+import java.util.concurrent.TimeUnit;
+
+public class Counter {
+
+  private int count;
+  private long nanotime;
+  
+  public int getCount() {
+    return count;
+  }
+  
+  public long getNanoTime() {
+    return nanotime;
+  }
+  
+  public void add(long nanotime) {
+    count++;
+    this.nanotime += nanotime;
+  }
+  
+  @Override
+  public String toString() {   
+    return String.format("%dx %dms", count, TimeUnit.MILLISECONDS.convert(nanotime, TimeUnit.NANOSECONDS));
+  }
+}

diylc/diylc-core/src/org/diylc/presenter/DrawingCache.java

@@ -19,15 +19,19 @@ package org.diylc.presenter;
 
 import java.awt.Graphics2D;
 import java.awt.Point;
+import java.awt.geom.Area;
+import java.awt.geom.Rectangle2D;
 import java.awt.image.BufferedImage;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 import org.apache.log4j.Logger;
 import org.diylc.common.ComponentType;
 import org.diylc.core.ComponentState;
 import org.diylc.core.IDIYComponent;
 import org.diylc.core.Project;
+import org.diylc.utils.Pair;
 
 /**
  * A layer that injects itself between the provided {@link G2DWrapper} instance and the underlying
@@ -39,8 +43,9 @@ import org.diylc.core.Project;
  */
 public class DrawingCache {
 
-  private Map<IDIYComponent<?>, CacheValue> imageCache =
+  private Map<IDIYComponent<?>, CacheValue> imageCache = new HashMap<IDIYComponent<?>, CacheValue>();
-      new HashMap<IDIYComponent<?>, CacheValue>();
+  
+  private Map<String, Pair<Counter, Counter>> renderStatsByType = new HashMap<String, Pair<Counter, Counter>>();
 
   private static final Logger LOG = Logger.getLogger(DrawingCache.class);
 
@@ -55,7 +60,6 @@ public class DrawingCache {
     if (type.getEnableCache()) {
       // if we need to apply caching
       Point firstPoint = component.getControlPoint(0);
-      Point lastPoint = component.getControlPoint(component.getControlPointCount() - 1);
 
       // cache hit!
       CacheValue value = null;
@@ -66,14 +70,22 @@ public class DrawingCache {
       if (value == null || !value.getComponent().equalsTo(component)
           || value.getState() != componentState || value.getZoom() != zoom) {
         LOG.trace("Rendering " + component.getName() + " for cache.");
-        int width = (int) (Math.abs(firstPoint.x - lastPoint.x) * zoom) + 2;
+        Rectangle2D rect = component.getCachingBounds();
-        int height = (int) (Math.abs(firstPoint.y - lastPoint.y) * zoom) + 2;
+        int width = (int)Math.round(rect.getWidth() * zoom);
+        int height = (int)Math.round(rect.getHeight() * zoom);
+        // calculate the position of the first point relative to the caching bounds
+        int dx = (int) (firstPoint.x - rect.getX());
+        int dy = (int) (firstPoint.y - rect.getY());
+        
+        // create image
         BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
+        // create graphics
         Graphics2D cg2d = image.createGraphics();
 
-        // copy over rendering settings
+        // copy over rendering settings so our cached image has the same features
         cg2d.setRenderingHints(g2d.getRenderingHints());
 
+        // set clip bounds to the whole image
         cg2d.setClip(0, 0, width, height);
         
         // apply zoom
@@ -81,24 +93,41 @@ public class DrawingCache {
           cg2d.scale(zoom, zoom);
         }
         // translate to make the top-left corner of the component match (0, 0)
-        cg2d.translate(-firstPoint.x, -firstPoint.y);
+        cg2d.translate(-firstPoint.x + dx, -firstPoint.y + dy);
         
         // wrap the graphics so we can track
         G2DWrapper wrapper = new G2DWrapper(cg2d, zoom);
 
+        // initialize wrapper
         wrapper.startedDrawingComponent();
         if (!trackArea) {
           wrapper.stopTracking();
         }
         
+        long componentStart = System.nanoTime();
+
         // now draw the component to the buffer image
         component.draw(wrapper, componentState, outlineMode, project, wrapper);
         
+        long componentEnd = System.nanoTime();
+        
+        Pair<Counter, Counter> stats;
+        String key = component.getClass().getCanonicalName().replace("org.diylc.components.", "");
+        if (renderStatsByType.containsKey(key)) {
+          stats = renderStatsByType.get(key);
+        } else {
+          stats = new Pair<Counter, Counter>(new Counter(), new Counter());
+          renderStatsByType.put(key, stats);
+        }
+        stats.getFirst().add(componentEnd - componentStart);
+
+        // finalize wrapper
         wrapper.finishedDrawingComponent();
 
         cg2d.dispose();
         
-//        File outputfile = new File("d:\\image_" + component.getName() + ".png");
+        // output cached drawings to separate files 
+//        File outputfile = new File("d:\\tmp\\image_" + component.getName() + ".png");
 //        try {
 //          ImageIO.write(image, "png", outputfile);
 //        } catch (IOException e) {
@@ -106,33 +135,60 @@ public class DrawingCache {
 //          e.printStackTrace();
 //        }
         
-        value = new CacheValue(component, image, wrapper, componentState, zoom);
+        // add to the cache        
-        
+        value = new CacheValue(component, image, wrapper.getCurrentArea(), wrapper.getContinuityPositiveAreas(),
+            wrapper.getContinuityNegativeAreas(), componentState, zoom, dx, dy);        
         imageCache.put(component, value);
       }
       
+      long componentStart = System.nanoTime();
+
       // temporarily scale the graphic to compensate for the zoom, since we are rendering an image with the zoom appled
       if (Math.abs(1.0 - zoom) > 1e-4) {
         g2d.getCanvasGraphics().scale(1 / zoom, 1 / zoom);
       }
       try {
         // draw cached image
-        g2d.getCanvasGraphics().drawImage(value.getImage(), (int) (firstPoint.x * zoom),
+        g2d.getCanvasGraphics().drawImage(value.getImage(), (int) ((firstPoint.x - value.getDx()) * zoom),
-            (int) (firstPoint.y * zoom), null);
+            (int) ((firstPoint.y - value.getDy())* zoom), null);
       } finally {
         if (Math.abs(1.0 - zoom) > 1e-4) {
           g2d.getCanvasGraphics().scale(zoom, zoom);
         }
       }
       
+      long componentEnd = System.nanoTime();
+      
+      Pair<Counter, Counter> stats;
+      String key = component.getClass().getCanonicalName().replace("org.diylc.components.", "");
+      if (renderStatsByType.containsKey(key)) {
+        stats = renderStatsByType.get(key);
+      } else {
+        stats = new Pair<Counter, Counter>(new Counter(), new Counter());
+        renderStatsByType.put(key, stats);
+      }
+      stats.getSecond().add(componentEnd - componentStart);
+
       // copy over tracking area from the cache
-      g2d.merge(value.getWrapper());
+      g2d.merge(value.getCurrentArea(), value.getContinuityPositiveAreas(), value.getContinuityNegativeAreas());
     } else {
       // no caching, just draw as usual
       component.draw(g2d, componentState, outlineMode, project, g2d);
     }
   }
   
+  public void logStats() {
+    int totalSizeMB = imageCache.values().stream().map(x -> x.image.getData().getDataBuffer().getSize()).reduce(0, Integer::sum) * 4 / 1024 / 1024; // 4 bytes per pixel
+    LOG.debug(String.format("Render cache contains %d elements, approx size is %d MB", imageCache.size(), totalSizeMB));
+    
+    String mapAsString = renderStatsByType.entrySet().stream().sorted((e1, e2) -> -Long.compare(e1.getValue().getFirst().getNanoTime() + e1.getValue().getSecond().getNanoTime(), 
+        e2.getValue().getFirst().getNanoTime() + e2.getValue().getSecond().getNanoTime()))
+        .map(e -> e.getKey() + ": render: " + e.getValue().getFirst() + ", paste: " + e.getValue().getSecond())
+        .collect(Collectors.joining("; ", "{", "}"));
+    
+    LOG.debug("Cache render distribution stats: " + mapAsString);
+  }
+
   public void clear() {
     imageCache.clear();
   }
@@ -140,12 +196,17 @@ public class DrawingCache {
   private class CacheValue {
     IDIYComponent<?> component;
     BufferedImage image;
-    G2DWrapper wrapper;
+    Area currentArea;
+    Map<String, Area> continuityPositiveAreas;
+    Map<String, Area> continuityNegativeAreas;
     ComponentState state;
     double zoom;
+    int dx;
+    int dy;
 
-    public CacheValue(IDIYComponent<?> component, BufferedImage image, G2DWrapper wrapper,
+    public CacheValue(IDIYComponent<?> component, BufferedImage image, Area currentArea,
-        ComponentState state, double zoom) {
+        Map<String, Area> continuityPositiveAreas,  Map<String, Area> continuityNegativeAreas,
+        ComponentState state, double zoom, int dx, int dy) {
       super();
       // take a copy of the component, so we can check if it changed in the meantime
       try {
@@ -153,9 +214,13 @@ public class DrawingCache {
       } catch (CloneNotSupportedException e) {
       }
       this.image = image;
-      this.wrapper = wrapper;
+      this.currentArea = currentArea;
+      this.continuityPositiveAreas = continuityPositiveAreas;
+      this.continuityNegativeAreas = continuityNegativeAreas;
       this.state = state;
       this.zoom = zoom;
+      this.dx = dx;
+      this.dy = dy;
     }
 
     public IDIYComponent<?> getComponent() {
@@ -166,8 +231,16 @@ public class DrawingCache {
       return image;
     }
 
-    public G2DWrapper getWrapper() {
+    public Area getCurrentArea() {
-      return wrapper;
+      return currentArea;
+    }
+    
+    public Map<String, Area> getContinuityPositiveAreas() {
+      return continuityPositiveAreas;
+    }
+    
+    public Map<String, Area> getContinuityNegativeAreas() {
+      return continuityNegativeAreas;
     }
 
     public ComponentState getState() {
@@ -178,6 +251,14 @@ public class DrawingCache {
       return zoom;
     }
     
+    public int getDx() {
+      return dx;
+    }
+    
+    public int getDy() {
+      return dy;
+    }
+
     @Override
     public String toString() {
       return component.getName() + ":" + state + ":" + zoom;

diylc/diylc-core/src/org/diylc/presenter/DrawingManager.java

@@ -58,7 +58,6 @@ import org.diylc.core.Project;
 import org.diylc.core.Theme;
 import org.diylc.core.VisibilityPolicy;
 import org.diylc.utils.Constants;
-import org.diylc.utils.Pair;
 
 /**
  * Utility that deals with painting {@link Project} on the {@link Graphics2D} and keeps areas taken
@@ -109,7 +108,7 @@ public class DrawingManager {
   private boolean debugContinuityAreas;
   
   // rendering stats
-  private Map<String, Pair<Integer, Long>> renderStatsByType = new HashMap<String, Pair<Integer, Long>>();
+  private Map<String, Counter> renderStatsByType = new HashMap<String, Counter>();
   private long lastStatsReportedTime = System.currentTimeMillis();
   private long statReportFrequencyMs = 1000 * 60;
 
@@ -305,26 +304,15 @@ public class DrawingManager {
         } finally {
           // record render stats
           long componentEnd = System.nanoTime();
-          Pair<Integer, Long> stats = null;
+          Counter stats = null;
-          String key = component.getClass().getCanonicalName();
+          String key = component.getClass().getCanonicalName().replace("org.diylc.components.", "");
           if (renderStatsByType.containsKey(key)) {
             stats = renderStatsByType.get(key);            
-            stats.setFirst(stats.getFirst() + 1);
-            stats.setSecond(stats.getSecond() + (componentEnd - componentStart));
           } else {
-            stats = new Pair<Integer, Long>(1, componentEnd - componentStart);
+            stats = new Counter();
             renderStatsByType.put(key, stats);
           }
-          
+          stats.add(componentEnd - componentStart);
-          // log render time stats periodically
-          if (System.currentTimeMillis() - lastStatsReportedTime > statReportFrequencyMs) {
-            lastStatsReportedTime = System.currentTimeMillis();
-            String mapAsString = renderStatsByType.entrySet().stream().sorted((e1, e2) -> -e1.getValue().getSecond().compareTo(e2.getValue().getSecond()))
-                .map(e -> e.getKey() + "=" + e.getValue().getFirst() + "x " + 
-                    TimeUnit.MILLISECONDS.convert( e.getValue().getSecond(), TimeUnit.NANOSECONDS) + "ms ")
-                .collect(Collectors.joining(", ", "{", "}"));
-            LOG.debug("Render stats: " + mapAsString);
-          }
         }
         ComponentArea area = g2dWrapper.finishedDrawingComponent();
         if (trackArea && area != null && !area.getOutlineArea().isEmpty()) {
@@ -470,9 +458,23 @@ public class DrawingManager {
     long ms = TimeUnit.MILLISECONDS.convert(end - start, TimeUnit.NANOSECONDS);
     LOG.trace(String.format("Render time = %d ms", ms));
     
+    logStats();
+
     return failedComponents;
   }
   
+  public void logStats() {
+    // log render time stats periodically
+    if (System.currentTimeMillis() - lastStatsReportedTime > statReportFrequencyMs) {
+      lastStatsReportedTime = System.currentTimeMillis();
+      String mapAsString = renderStatsByType.entrySet().stream().sorted((e1, e2) -> -Long.compare(e1.getValue().getNanoTime(), e2.getValue().getNanoTime()))
+          .map(e -> e.toString())
+          .collect(Collectors.joining("; ", "{", "}"));
+      LOG.debug("Render stats: " + mapAsString);
+      DrawingCache.Instance.logStats();
+    }
+  }
+
   public double getZoomLevel() {
     return zoomLevel;
   }

diylc/diylc-core/src/org/diylc/presenter/G2DWrapper.java

@@ -162,10 +162,26 @@ class G2DWrapper extends Graphics2D implements IDrawingObserver {
     return new ComponentArea(currentArea, continuityPositiveAreas.values(), continuityNegativeAreas.values());
   }
   
-  public void merge(G2DWrapper wrapper) {
+  // start - used for caching
-    currentArea = wrapper.currentArea;
+  
-    continuityPositiveAreas = wrapper.continuityPositiveAreas;
+  public Area getCurrentArea() {
-    continuityNegativeAreas = wrapper.continuityNegativeAreas;
+    return currentArea;
+  }
+  
+  public Map<String, Area> getContinuityPositiveAreas() {
+    return continuityPositiveAreas;
+  }
+  
+  public Map<String, Area> getContinuityNegativeAreas() {
+    return continuityNegativeAreas;
+  }
+  
+  // end - used for caching
+  
+  public void merge(Area currentArea, Map<String, Area> continuityPositiveAreas,  Map<String, Area> continuityNegativeAreas) {
+    this.currentArea = currentArea;
+    this.continuityPositiveAreas = continuityPositiveAreas;
+    this.continuityNegativeAreas = continuityNegativeAreas;
   }
 
   @Override

diylc/diylc-library/src/org/diylc/components/AbstractLeadedComponent.java

@@ -669,6 +669,28 @@ public abstract class AbstractLeadedComponent<T> extends AbstractTransparentComp
     return Integer.toString(index + 1);
   }
   
+  @Override
+  public Rectangle2D getCachingBounds() {
+    int minX = Integer.MAX_VALUE;
+    int maxX = Integer.MIN_VALUE;
+    int minY = Integer.MAX_VALUE;
+    int maxY = Integer.MIN_VALUE;
+    int margin = (int) Math.max(Math.max(getWidth().convertToPixels(), getLength().convertToPixels()), getLeadThickness());
+    for (int i = 0; i < getControlPointCount(); i++) {
+      Point p = getControlPoint(i);
+      if (p.x < minX)
+        minX = p.x;
+      if (p.x > maxX)
+        maxX = p.x;
+      if (p.y < minY)
+        minY = p.y;
+      if (p.y > maxY)
+        maxY = p.y;
+    }
+    
+    return new Rectangle2D.Double(minX - margin, minY - margin, maxX - minX + 2 * margin, maxY - minY + 2 * margin);
+  }
+
   public enum LabelOriantation {
     Directional, Horizontal
   }

diylc/diylc-library/src/org/diylc/components/boards/AbstractBoard.java

@@ -26,6 +26,7 @@ import java.awt.Color;
 import java.awt.Composite;
 import java.awt.Graphics2D;
 import java.awt.Point;
+import java.awt.geom.Rectangle2D;
 
 import org.diylc.awt.StringUtils;
 import org.diylc.common.HorizontalAlignment;
@@ -333,6 +334,12 @@ public abstract class AbstractBoard extends AbstractTransparentComponent<String>
     this.mode = mode;
   }
   
+  @Override
+  public Rectangle2D getCachingBounds() {
+    Point finalSecondPoint = getFinalSecondPoint();    
+    return new Rectangle2D.Double(firstPoint.x, firstPoint.y, finalSecondPoint.x - firstPoint.x + 1, finalSecondPoint.y - firstPoint.y + 1);
+  }
+
   public static enum CoordinateType {
     Letters, Numbers
   }

diylc/diylc-library/src/org/diylc/components/connectivity/CurvedTrace.java

@@ -39,7 +39,8 @@ import org.diylc.core.measures.SizeUnit;
 @ComponentDescriptor(name = "Curved Trace", author = "Branislav Stojkovic", category = "Connectivity",
     instanceNamePrefix = "Trace", description = "Curved copper trace with two control points",
     zOrder = IDIYComponent.TRACE, bomPolicy = BomPolicy.NEVER_SHOW, autoEdit = false,
-    keywordPolicy = KeywordPolicy.SHOW_TAG, keywordTag = "PCB", transformer = SimpleComponentTransformer.class)
+    keywordPolicy = KeywordPolicy.SHOW_TAG, keywordTag = "PCB", transformer = SimpleComponentTransformer.class, 
+    enableCache = true)
 public class CurvedTrace extends AbstractCurvedComponent<Void> {
 
   private static final long serialVersionUID = 1L;

diylc/diylc-library/src/org/diylc/components/connectivity/HookupWire.java

@@ -39,7 +39,7 @@ import org.diylc.utils.Constants;
 @ComponentDescriptor(name = "Hookup Wire", author = "Branislav Stojkovic", category = "Connectivity",
     instanceNamePrefix = "W", description = "Flexible wire with two control points", zOrder = IDIYComponent.COMPONENT,
     flexibleZOrder = true, bomPolicy = BomPolicy.NEVER_SHOW, autoEdit = false,
-    transformer = SimpleComponentTransformer.class)
+    transformer = SimpleComponentTransformer.class, enableCache = true)
 public class HookupWire extends AbstractCurvedComponent<Void> implements IContinuity {
 
   private static final long serialVersionUID = 1L;

diylc/diylc-library/src/org/diylc/components/connectivity/TwistedWire.java

@@ -48,7 +48,7 @@ import org.diylc.utils.Constants;
 @ComponentDescriptor(name = "Twisted Leads", author = "Branislav Stojkovic", category = "Connectivity",
     instanceNamePrefix = "W", description = "A pair of flexible leads twisted tighly together", zOrder = IDIYComponent.COMPONENT,
     flexibleZOrder = true, bomPolicy = BomPolicy.NEVER_SHOW, autoEdit = false,
-    transformer = SimpleComponentTransformer.class)
+    transformer = SimpleComponentTransformer.class, enableCache = true)
 public class TwistedWire extends AbstractCurvedComponent<Void> implements IContinuity {
 
   private static final long serialVersionUID = 1L;

diylc/diylc-library/src/org/diylc/components/passive/AxialElectrolyticCapacitor.java

@@ -48,7 +48,7 @@ import org.diylc.utils.Constants;
 @ComponentDescriptor(name = "Electrolytic Capacitor (Axial)", author = "Branislav Stojkovic", category = "Passive",
     creationMethod = CreationMethod.POINT_BY_POINT, instanceNamePrefix = "C",
     description = "Axial electrolytic capacitor, similar to Sprague Atom, F&T, etc", zOrder = IDIYComponent.COMPONENT,
-    transformer = SimpleComponentTransformer.class)
+    transformer = SimpleComponentTransformer.class, enableCache = true)
 public class AxialElectrolyticCapacitor extends AbstractLeadedComponent<Capacitance> {
 
   private static final long serialVersionUID = 1L;

diylc/diylc-library/src/org/diylc/components/passive/Resistor.java

@@ -45,7 +45,7 @@ import org.diylc.core.measures.SizeUnit;
 
 @ComponentDescriptor(name = "Resistor", author = "Branislav Stojkovic", category = "Passive",
     creationMethod = CreationMethod.POINT_BY_POINT, instanceNamePrefix = "R", description = "Resistor layout symbol",
-    zOrder = IDIYComponent.COMPONENT, transformer = SimpleComponentTransformer.class)
+    zOrder = IDIYComponent.COMPONENT, transformer = SimpleComponentTransformer.class, enableCache = true)
 public class Resistor extends AbstractLeadedComponent<Resistance> {
 
   private static final long serialVersionUID = 1L;

diylc/diylc-library/src/org/diylc/components/semiconductors/DIL_IC.java

@@ -57,7 +57,8 @@ import org.diylc.utils.Constants;
 
 @ComponentDescriptor(name = "DIP IC", author = "Branislav Stojkovic", category = "Semiconductors",
     instanceNamePrefix = "IC", description = "Dual-in-line package IC",
-    zOrder = IDIYComponent.COMPONENT, keywordPolicy = KeywordPolicy.SHOW_VALUE, transformer = DIL_ICTransformer.class)
+    zOrder = IDIYComponent.COMPONENT, keywordPolicy = KeywordPolicy.SHOW_VALUE, transformer = DIL_ICTransformer.class,
+    enableCache = true)
 public class DIL_IC extends AbstractTransparentComponent<String> {
 
   private static final long serialVersionUID = 1L;
@@ -543,6 +544,28 @@ public class DIL_IC extends AbstractTransparentComponent<String> {
     return false;
   }
   
+  @Override
+  public Rectangle2D getCachingBounds() {
+    int minX = Integer.MAX_VALUE;
+    int maxX = Integer.MIN_VALUE;
+    int minY = Integer.MAX_VALUE;
+    int maxY = Integer.MIN_VALUE;
+    int margin = 50;
+    for (int i = 0; i < getControlPointCount(); i++) {
+      Point p = getControlPoint(i);
+      if (p.x < minX)
+        minX = p.x;
+      if (p.x > maxX)
+        maxX = p.x;
+      if (p.y < minY)
+        minY = p.y;
+      if (p.y > maxY)
+        maxY = p.y;
+    }
+    
+    return new Rectangle2D.Double(minX - margin, minY - margin, maxX - minX + 2 * margin, maxY - minY + 2 * margin);
+  }
+
   public static enum PinCount {
 
     _4, _6, _8, _10, _12, _14, _16, _18, _20, _22, _24, _26, _28, _30, _32, _34, _36, _38, _40, _42, _44, _46, _48, _50;

diylc/diylc-library/src/org/diylc/components/semiconductors/SIL_IC.java

@@ -56,7 +56,8 @@ import org.diylc.utils.Constants;
 
 @ComponentDescriptor(name = "SIP IC", author = "Branislav Stojkovic", category = "Semiconductors",
     instanceNamePrefix = "IC", description = "Single-in-line package IC",
-    zOrder = IDIYComponent.COMPONENT, keywordPolicy = KeywordPolicy.SHOW_VALUE, transformer = SIL_ICTransformer.class)
+    zOrder = IDIYComponent.COMPONENT, keywordPolicy = KeywordPolicy.SHOW_VALUE, transformer = SIL_ICTransformer.class,
+    enableCache = true)
 public class SIL_IC extends AbstractTransparentComponent<String> {
 
   private static final long serialVersionUID = 1L;
@@ -431,6 +432,28 @@ public class SIL_IC extends AbstractTransparentComponent<String> {
     this.indentColor = indentColor;
   }
   
+  @Override
+  public Rectangle2D getCachingBounds() {
+    int minX = Integer.MAX_VALUE;
+    int maxX = Integer.MIN_VALUE;
+    int minY = Integer.MAX_VALUE;
+    int maxY = Integer.MIN_VALUE;
+    int margin = 50;
+    for (int i = 0; i < getControlPointCount(); i++) {
+      Point p = getControlPoint(i);
+      if (p.x < minX)
+        minX = p.x;
+      if (p.x > maxX)
+        maxX = p.x;
+      if (p.y < minY)
+        minY = p.y;
+      if (p.y > maxY)
+        maxY = p.y;
+    }
+    
+    return new Rectangle2D.Double(minX - margin, minY - margin, maxX - minX + 2 * margin, maxY - minY + 2 * margin);
+  }
+
   public static enum PinCount {
 
     _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, _18, _19, _20;

diylc/diylc-swing/DIYLCStarter.launch

@@ -11,5 +11,5 @@
 <stringAttribute key="org.eclipse.debug.core.source_locator_memento" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#13;&#10;&lt;sourceLookupDirector&gt;&#13;&#10;&lt;sourceContainers duplicates=&quot;false&quot;&gt;&#13;&#10;&lt;container memento=&quot;&amp;lt;?xml version=&amp;quot;1.0&amp;quot; encoding=&amp;quot;UTF-8&amp;quot; standalone=&amp;quot;no&amp;quot;?&amp;gt;&amp;#13;&amp;#10;&amp;lt;javaProject name=&amp;quot;Library&amp;quot;/&amp;gt;&amp;#13;&amp;#10;&quot; typeId=&quot;org.eclipse.jdt.launching.sourceContainer.javaProject&quot;/&gt;&#13;&#10;&lt;container memento=&quot;&amp;lt;?xml version=&amp;quot;1.0&amp;quot; encoding=&amp;quot;UTF-8&amp;quot; standalone=&amp;quot;no&amp;quot;?&amp;gt;&amp;#13;&amp;#10;&amp;lt;javaProject name=&amp;quot;DIYLC&amp;quot;/&amp;gt;&amp;#13;&amp;#10;&quot; typeId=&quot;org.eclipse.jdt.launching.sourceContainer.javaProject&quot;/&gt;&#13;&#10;&lt;container memento=&quot;&amp;lt;?xml version=&amp;quot;1.0&amp;quot; encoding=&amp;quot;UTF-8&amp;quot; standalone=&amp;quot;no&amp;quot;?&amp;gt;&amp;#13;&amp;#10;&amp;lt;javaProject name=&amp;quot;diylc-core&amp;quot;/&amp;gt;&amp;#13;&amp;#10;&quot; typeId=&quot;org.eclipse.jdt.launching.sourceContainer.javaProject&quot;/&gt;&#13;&#10;&lt;container memento=&quot;&amp;lt;?xml version=&amp;quot;1.0&amp;quot; encoding=&amp;quot;UTF-8&amp;quot; standalone=&amp;quot;no&amp;quot;?&amp;gt;&amp;#13;&amp;#10;&amp;lt;javaProject name=&amp;quot;diylc-library&amp;quot;/&amp;gt;&amp;#13;&amp;#10;&quot; typeId=&quot;org.eclipse.jdt.launching.sourceContainer.javaProject&quot;/&gt;&#13;&#10;&lt;container memento=&quot;&amp;lt;?xml version=&amp;quot;1.0&amp;quot; encoding=&amp;quot;UTF-8&amp;quot; standalone=&amp;quot;no&amp;quot;?&amp;gt;&amp;#13;&amp;#10;&amp;lt;default/&amp;gt;&amp;#13;&amp;#10;&quot; typeId=&quot;org.eclipse.debug.core.containerType.default&quot;/&gt;&#13;&#10;&lt;/sourceContainers&gt;&#13;&#10;&lt;/sourceLookupDirector&gt;&#13;&#10;"/>
 <stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="org.diylc.DIYLCStarter"/>
 <stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="diylc-swing"/>
-<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-Xms256m -Xmx512m -Dorg.diylc.scriptRun=true -Ddorg.diylc.debugContinuityAreas=true -Ddorg.diylc.WriteStaticVariants=true -Ddorg.diylc.debugComponentAreas=true -Dorg.diylc.WriteStaticBlocks=true"/>
+<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-Xms512m -Xmx2048m -Dorg.diylc.scriptRun=true -Ddorg.diylc.debugContinuityAreas=true -Dorg.diylc.debugComponentAreas=true -Ddorg.diylc.WriteStaticVariants=true -Dorg.diylc.WriteStaticBlocks=true"/>
 </launchConfiguration>