| /* |
| |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| |
| */ |
| package org.apache.batik.gvt; |
| |
| import java.awt.Graphics2D; |
| import java.awt.Shape; |
| import java.awt.geom.Point2D; |
| import java.awt.geom.Rectangle2D; |
| |
| import org.apache.batik.util.HaltingThread; |
| |
| /** |
| * A graphics node that represents a shape. |
| * |
| * @author <a href="mailto:Thierry.Kormann@sophia.inria.fr">Thierry Kormann</a> |
| * @version $Id$ |
| */ |
| public class ShapeNode extends AbstractGraphicsNode { |
| |
| /** |
| * The shape that describes this <code>ShapeNode</code>. |
| */ |
| protected Shape shape; |
| |
| /** |
| * The shape painter used to paint the shape of this shape node. |
| */ |
| protected ShapePainter shapePainter; |
| |
| /** |
| * Internal Cache: Primitive bounds |
| */ |
| private Rectangle2D primitiveBounds; |
| |
| /** |
| * Internal Cache: Geometry bounds |
| */ |
| private Rectangle2D geometryBounds; |
| |
| /** |
| * Internal Cache: Sensitive bounds |
| */ |
| private Rectangle2D sensitiveBounds; |
| |
| /** |
| * Internal Cache: The painted area. |
| */ |
| private Shape paintedArea; |
| |
| /** |
| * Internal Cache: The sensitive area. |
| */ |
| private Shape sensitiveArea; |
| |
| /** |
| * Constructs a new empty <code>ShapeNode</code>. |
| */ |
| public ShapeNode() {} |
| |
| // |
| // Properties methods |
| // |
| |
| /** |
| * Sets the shape of this <code>ShapeNode</code>. |
| * |
| * @param newShape the new shape of this shape node |
| */ |
| public void setShape(Shape newShape) { |
| fireGraphicsNodeChangeStarted(); |
| invalidateGeometryCache(); |
| this.shape = newShape; |
| if(this.shapePainter != null){ |
| if (newShape != null) { |
| this.shapePainter.setShape(newShape); |
| } else { |
| this.shapePainter = null; |
| } |
| } |
| fireGraphicsNodeChangeCompleted(); |
| } |
| |
| /** |
| * Returns the shape of this <code>ShapeNode</code>. |
| */ |
| public Shape getShape() { |
| return shape; |
| } |
| |
| /** |
| * Sets the <code>ShapePainter</code> used by this shape node to render its |
| * shape. |
| * |
| * @param newShapePainter the new ShapePainter to use |
| */ |
| public void setShapePainter(ShapePainter newShapePainter) { |
| if (shape == null) // Doesn't matter if we don't have a shape. |
| return; |
| fireGraphicsNodeChangeStarted(); |
| invalidateGeometryCache(); |
| this.shapePainter = newShapePainter; |
| if(shapePainter != null && shape != this.shapePainter.getShape()){ |
| shapePainter.setShape(shape); |
| } |
| fireGraphicsNodeChangeCompleted(); |
| } |
| |
| /** |
| * Returns the <code>ShapePainter</code> used by this shape node to render its |
| * shape. |
| */ |
| public ShapePainter getShapePainter() { |
| return shapePainter; |
| } |
| |
| // |
| // Drawing methods |
| // |
| |
| /** |
| * Paints this node. |
| * |
| * @param g2d the Graphics2D to use |
| */ |
| public void paint(Graphics2D g2d) { |
| if (isVisible) |
| super.paint(g2d); |
| } |
| |
| /** |
| * Paints this node without applying Filter, Mask, Composite, and clip. |
| * |
| * @param g2d the Graphics2D to use |
| */ |
| public void primitivePaint(Graphics2D g2d) { |
| if (shapePainter != null) { |
| shapePainter.paint(g2d); |
| } |
| } |
| |
| // |
| // Geometric methods |
| // |
| |
| /** |
| * Invalidates this <code>ShapeNode</code>. This node and all its ancestors have |
| * been informed that all its cached values related to its bounds must be |
| * recomputed. |
| */ |
| protected void invalidateGeometryCache() { |
| super.invalidateGeometryCache(); |
| primitiveBounds = null; |
| geometryBounds = null; |
| sensitiveBounds = null; |
| paintedArea = null; |
| sensitiveArea = null; |
| } |
| |
| public void setPointerEventType(int pointerEventType) { |
| super.setPointerEventType(pointerEventType); |
| sensitiveBounds = null; |
| sensitiveArea = null; |
| } |
| /** |
| * Returns true if the specified Point2D is inside the boundary of this |
| * node, false otherwise. |
| * |
| * @param p the specified Point2D in the user space |
| */ |
| public boolean contains(Point2D p) { |
| switch(pointerEventType) { |
| case VISIBLE_PAINTED: |
| case VISIBLE_FILL: |
| case VISIBLE_STROKE: |
| case VISIBLE: |
| if (!isVisible) return false; |
| // Fall Through |
| case PAINTED: |
| case FILL: |
| case STROKE: |
| case ALL: { |
| Rectangle2D b = getSensitiveBounds(); |
| if (b == null || !b.contains(p)) |
| return false; |
| |
| return inSensitiveArea(p); |
| } |
| case NONE: |
| default: |
| return false; |
| } |
| } |
| |
| /** |
| * Returns true if the interior of this node intersects the interior of a |
| * specified Rectangle2D, false otherwise. |
| * |
| * @param r the specified Rectangle2D in the user node space |
| */ |
| public boolean intersects(Rectangle2D r) { |
| Rectangle2D b = getBounds(); |
| if (b != null) { |
| return (b.intersects(r) && |
| paintedArea != null && |
| paintedArea.intersects(r)); |
| } |
| return false; |
| } |
| |
| /** |
| * Returns the bounds of the area covered by this node's primitive paint. |
| */ |
| public Rectangle2D getPrimitiveBounds() { |
| if (!isVisible) return null; |
| if (shape == null) return null; |
| if (primitiveBounds != null) |
| return primitiveBounds; |
| |
| if (shapePainter == null) |
| primitiveBounds = shape.getBounds2D(); |
| else |
| primitiveBounds = shapePainter.getPaintedBounds2D(); |
| |
| // Check If we should halt early. |
| if (HaltingThread.hasBeenHalted()) { |
| // The Thread has been halted. |
| // Invalidate any cached values and proceed (this |
| // sets primitiveBounds to null). |
| invalidateGeometryCache(); |
| } |
| return primitiveBounds; |
| } |
| |
| public boolean inSensitiveArea(Point2D pt) { |
| if (shapePainter == null) |
| return false; |
| |
| // <!> NOT REALLY NICE CODE BUT NO OTHER WAY |
| ShapePainter strokeShapePainter = null; |
| ShapePainter fillShapePainter = null; |
| if (shapePainter instanceof StrokeShapePainter) { |
| strokeShapePainter = shapePainter; |
| } else if (shapePainter instanceof FillShapePainter) { |
| fillShapePainter = shapePainter; |
| } else if (shapePainter instanceof CompositeShapePainter) { |
| CompositeShapePainter cp = (CompositeShapePainter)shapePainter; |
| |
| for (int i=0; i < cp.getShapePainterCount(); ++i) { |
| ShapePainter sp = cp.getShapePainter(i); |
| if (sp instanceof StrokeShapePainter) { |
| strokeShapePainter = sp; |
| } else if (sp instanceof FillShapePainter) { |
| fillShapePainter = sp; |
| } |
| } |
| } else { |
| return false; // Don't know what we have... |
| } |
| |
| switch(pointerEventType) { |
| case VISIBLE_PAINTED: |
| case PAINTED: |
| return shapePainter.inPaintedArea(pt); |
| case VISIBLE: |
| case ALL: |
| return shapePainter.inSensitiveArea(pt); |
| case VISIBLE_FILL: |
| case FILL: |
| if (fillShapePainter != null) |
| return fillShapePainter.inSensitiveArea(pt); |
| break; |
| case VISIBLE_STROKE: |
| case STROKE: |
| if (strokeShapePainter != null) |
| return strokeShapePainter.inSensitiveArea(pt); |
| break; |
| case NONE: |
| default: |
| // nothing to tdo |
| } |
| return false; |
| } |
| |
| /** |
| * Returns the bounds of the sensitive area covered by this node, |
| * This includes the stroked area but does not include the effects |
| * of clipping, masking or filtering. |
| */ |
| public Rectangle2D getSensitiveBounds() { |
| if (sensitiveBounds != null) |
| return sensitiveBounds; |
| |
| if (shapePainter == null) |
| return null; |
| |
| // <!> NOT REALLY NICE CODE BUT NO OTHER WAY |
| ShapePainter strokeShapePainter = null; |
| ShapePainter fillShapePainter = null; |
| if (shapePainter instanceof StrokeShapePainter) { |
| strokeShapePainter = shapePainter; |
| } else if (shapePainter instanceof FillShapePainter) { |
| fillShapePainter = shapePainter; |
| } else if (shapePainter instanceof CompositeShapePainter) { |
| CompositeShapePainter cp = (CompositeShapePainter)shapePainter; |
| |
| for (int i=0; i < cp.getShapePainterCount(); ++i) { |
| ShapePainter sp = cp.getShapePainter(i); |
| if (sp instanceof StrokeShapePainter) { |
| strokeShapePainter = sp; |
| } else if (sp instanceof FillShapePainter) { |
| fillShapePainter = sp; |
| } |
| } |
| } else return null; // Don't know what we have... |
| |
| |
| switch(pointerEventType) { |
| case VISIBLE_PAINTED: |
| case PAINTED: |
| sensitiveBounds = shapePainter.getPaintedBounds2D(); |
| break; |
| case VISIBLE_FILL: |
| case FILL: |
| if (fillShapePainter != null) { |
| sensitiveBounds = fillShapePainter.getSensitiveBounds2D(); |
| } |
| break; |
| case VISIBLE_STROKE: |
| case STROKE: |
| if (strokeShapePainter != null) { |
| sensitiveBounds = strokeShapePainter.getSensitiveBounds2D(); |
| } |
| break; |
| case VISIBLE: |
| case ALL: |
| sensitiveBounds = shapePainter.getSensitiveBounds2D(); |
| break; |
| case NONE: |
| default: |
| // nothing to tdo |
| } |
| return sensitiveBounds; |
| } |
| |
| /** |
| * Returns the shape that represents the sensitive area of this graphics |
| * node. |
| */ |
| public Shape getSensitiveArea() { |
| if (sensitiveArea != null) |
| return sensitiveArea; |
| if (shapePainter == null) |
| return null; |
| |
| // <!> NOT REALLY NICE CODE BUT NO OTHER WAY |
| ShapePainter strokeShapePainter = null; |
| ShapePainter fillShapePainter = null; |
| if (shapePainter instanceof StrokeShapePainter) { |
| strokeShapePainter = shapePainter; |
| } else if (shapePainter instanceof FillShapePainter) { |
| fillShapePainter = shapePainter; |
| } else if (shapePainter instanceof CompositeShapePainter) { |
| CompositeShapePainter cp = (CompositeShapePainter)shapePainter; |
| |
| for (int i=0; i < cp.getShapePainterCount(); ++i) { |
| ShapePainter sp = cp.getShapePainter(i); |
| if (sp instanceof StrokeShapePainter) { |
| strokeShapePainter = sp; |
| } else if (sp instanceof FillShapePainter) { |
| fillShapePainter = sp; |
| } |
| } |
| } else return null; // Don't know what we have... |
| |
| |
| switch(pointerEventType) { |
| case VISIBLE_PAINTED: |
| case PAINTED: |
| sensitiveArea = shapePainter.getPaintedArea(); |
| break; |
| case VISIBLE_FILL: |
| case FILL: |
| if (fillShapePainter != null) { |
| sensitiveArea = fillShapePainter.getSensitiveArea(); |
| } |
| break; |
| case VISIBLE_STROKE: |
| case STROKE: |
| if (strokeShapePainter != null) { |
| sensitiveArea = strokeShapePainter.getSensitiveArea(); |
| } |
| break; |
| case VISIBLE: |
| case ALL: |
| sensitiveArea = shapePainter.getSensitiveArea(); |
| break; |
| case NONE: |
| default: |
| // nothing to tdo |
| } |
| return sensitiveArea; |
| } |
| |
| /** |
| * Returns the bounds of the area covered by this node, without |
| * taking any of its rendering attribute into account. That is, |
| * exclusive of any clipping, masking, filtering or stroking, for |
| * example. |
| */ |
| public Rectangle2D getGeometryBounds(){ |
| if (geometryBounds == null) { |
| if (shape == null) { |
| return null; |
| } |
| geometryBounds = normalizeRectangle(shape.getBounds2D()); |
| } |
| return geometryBounds; |
| } |
| |
| /** |
| * Returns the outline of this node. |
| */ |
| public Shape getOutline() { |
| return shape; |
| } |
| } |