Editing of texts inside SVG elements

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / elements / SVGHolderNode.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/elements/SVGHolderNode.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/elements/SVGHolderNode.java
new file mode 100644 (file)
index 0000000..ec26e3a
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/elements/SVGHolderNode.java
@@ -0,0 +1,137 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.diagram.elements;
+
+import java.awt.BasicStroke;
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.awt.Shape;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.Rectangle2D;
+
+import org.simantics.scenegraph.g2d.G2DParentNode;
+import org.simantics.scenegraph.g2d.IG2DNode;
+
+/**
+ * 
+ * Holder node that scales content to fit (and scales SVG inside those bounds)
+ * 
+ * @author jplaine
+ *
+ */
+public class SVGHolderNode extends G2DParentNode {
+    /**
+     * 
+     */
+    private static final long serialVersionUID = 8698435757824280001L;
+
+    protected Rectangle2D bounds = null;
+    protected Float       borderWidth = null;
+    
+    
+    @PropertySetter("VariableFilter")
+    public void setScript(String script) {
+        for(IG2DNode node : getSortedNodes()) // Pass value to children
+               if(node instanceof AnimatedSVGNode) {
+                       ((AnimatedSVGNode)node).setScript(script);
+               }
+    }
+    
+    @PropertySetter("SVG")
+    public void setData(String data) {
+        for(IG2DNode node : getSortedNodes()) // Pass value to children
+               if(node instanceof AnimatedSVGNode) {
+                       ((AnimatedSVGNode)node).setData(data);
+               }
+    }
+
+    @PropertySetter("Stroke Width")
+    @SyncField("border")
+    public void setBorderWidth(Float borderWidth) {
+        this.borderWidth = borderWidth;
+    }
+
+    @PropertySetter("Bounds")
+    @SyncField("bounds")
+    public void setBounds(Rectangle2D bounds) {
+        this.bounds = bounds;
+    }
+
+    @Override
+    public void render(Graphics2D g2d) {
+        Rectangle2D cb = getBoundsInLocal(false);
+        double scaleX = bounds.getWidth() / cb.getWidth();
+        double scaleY = bounds.getHeight() / cb.getHeight();
+        double scale = Math.min(scaleX, scaleY);
+
+        if(borderWidth != null && borderWidth > 0.0f && bounds != null) {
+            Graphics2D g2 = (Graphics2D)g2d.create();
+            g2.transform(transform);
+            g2.setStroke(new BasicStroke(this.borderWidth));
+            g2.setColor(Color.BLACK);
+            g2.draw(bounds);
+            g2.dispose();
+        }
+
+        @SuppressWarnings("unused")
+        int noBounds = 0;
+        @SuppressWarnings("unused")
+        int clipped = 0;
+        @SuppressWarnings("unused")
+        int rendered = 0;
+
+        AffineTransform ot = g2d.getTransform();
+        g2d.transform(transform);
+
+        g2d.translate(-cb.getMinX()*scale+bounds.getMinX(), -cb.getMinY()*scale+bounds.getMinY());
+        g2d.scale(scale, scale);
+
+        // Get transformed clip bounds
+        Shape clipShape = g2d.getClip();
+        Rectangle2D bounds = null;
+        if (clipShape instanceof Rectangle2D)
+            bounds = (Rectangle2D) clipShape;
+        else if (clipShape != null)
+            bounds = clipShape.getBounds2D();
+
+        boolean noClipBounds = bounds == null;
+
+        for(IG2DNode node : getSortedNodes()) {
+            Rectangle2D localBounds = node.getBoundsInLocal();
+            boolean hasNoBounds = localBounds == null;
+            boolean visible = false;
+            if (!noClipBounds && !hasNoBounds) {
+                visible = node.intersects(bounds);
+            } else {
+                ++noBounds;
+            }
+            if (noClipBounds || hasNoBounds || visible) {
+                // TODO: consider removing this g2d.create ?
+                // Will definitely current cause bugs to appear.
+                if (node.validate()) {
+                    node.render(g2d);
+                }
+                ++rendered;
+            } else {
+                ++clipped;
+            }
+        }
+
+        g2d.setTransform(ot);
+    }
+
+    @Override
+    public Rectangle2D getBoundsInLocal() {
+        return bounds; // FIXME: not sure if it's a good idea to return different value than the getBoundsInLocal(boolean nulls) returns..
+    }
+
+}