Merge "Reading background color of a ICanvasContext with SCL"

[simantics/platform.git] / bundles / org.simantics.modeling / src / org / simantics / modeling / SCLScenegraph.java

diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/SCLScenegraph.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/SCLScenegraph.java
index 1e80b832d70aa15fbc2752772792e8202175a08d..55ed12656131c0629595cd7ded70c4f4bd064234 100644 (file)
--- a/bundles/org.simantics.modeling/src/org/simantics/modeling/SCLScenegraph.java
+++ b/bundles/org.simantics.modeling/src/org/simantics/modeling/SCLScenegraph.java
@@ -1,6 +1,7 @@
 package org.simantics.modeling;
 
 import java.awt.BasicStroke;
+import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.RenderingHints;
 import java.awt.RenderingHints.Key;
@@ -45,6 +46,7 @@ import org.simantics.diagram.elements.DiagramNodeUtil;
 import org.simantics.diagram.elements.TextGridNode;
 import org.simantics.diagram.elements.TextNode;
 import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.g2d.canvas.Hints;
 import org.simantics.g2d.canvas.ICanvasContext;
 import org.simantics.g2d.diagram.DiagramHints;
 import org.simantics.g2d.diagram.IDiagram;
@@ -276,6 +278,23 @@ public class SCLScenegraph {
        }
         return "No nodes in scenegraph!";
     }
+    
+    /**
+     * Returns background color of a canvasContext or null.
+     * @param ctx
+     * @return color in RGBA List<Integer> format, or null.
+     */
+    public static List<Integer> getBackgroundColor(ICanvasContext ctx) {
+       Color color = ctx.getDefaultHintContext().getHint(Hints.KEY_BACKGROUND_COLOR);
+       if (color == null)
+               return null;
+       ArrayList<Integer> rgba = new ArrayList<>(4);
+       rgba.add(color.getRed());
+       rgba.add(color.getGreen());
+       rgba.add(color.getBlue());
+       rgba.add(color.getAlpha());
+       return rgba;
+    }
 
     public static String sceneGraphTest (ICanvasContext ctx, String module, String value) {
        
@@ -378,12 +397,14 @@ public class SCLScenegraph {
 
                public static final String svgNS = "http://www.w3.org/2000/svg";
 
-               public Generator(SVGGeneratorContext ctx, boolean joku) {
-                       super(ctx, joku);
+               public Generator(SVGGeneratorContext ctx, boolean textAsShapes) {
+                       super(ctx, textAsShapes);
                }
 
                public Generator(Document document) {
                        super(document);
+                       // prevent batik comment in each g-element
+                       getGeneratorContext().setComment(null);
                }
 
                @Override
@@ -623,6 +644,7 @@ public class SCLScenegraph {
 
                RenderSVGContext result = new RenderSVGContext();
 
+               double[] matrix = new double[6];
                try {
 
             Selection selection = ctx.getAtMostOneItemOfClass(Selection.class);
@@ -649,10 +671,15 @@ public class SCLScenegraph {
                        
                        double scale = width < 0 || height < 0 ? 1.0 : Math.min((width - 2*offset) / content.getWidth(), (height - 2*offset) / content.getHeight());
                
-                       svgGenerator.translate(offset, offset);
-                       svgGenerator.scale(scale, scale);
+                       AffineTransform tr = new AffineTransform();
+                       tr.translate(offset, offset);
+                       tr.scale(scale, scale);
+                       tr.translate(-content.getX(), -content.getY());
+                       tr.getMatrix(matrix);
+                       //svgGenerator.translate(offset, offset);
+                       //svgGenerator.scale(scale, scale);
                        // translate svgGenerator to the x and y coordinates of current content
-                       svgGenerator.translate(-content.getX(), -content.getY());
+                       //svgGenerator.translate(-content.getX(), -content.getY());
 
                        svgGenerator.setSVGCanvasSize(new Dimension((int)Math.ceil(scale * content.getWidth()) + 2*offset, (int)Math.ceil(scale * content.getHeight()) + 2*offset));
                        //svgGenerator.setClip(content);
@@ -681,9 +708,11 @@ public class SCLScenegraph {
 
                StringBuilder res = new StringBuilder();
                res.append("<svg width=\"100%\" height=\"100%\" stroke=\"black\">");
+               res.append("<g transform=\"matrix(").append(matrix[0]).append(",").append(matrix[1]).append(",").append(matrix[2]).append(",").append(matrix[3]).append(",").append(matrix[4]).append(",").append(matrix[5]).append(")\">");
                res.append(result.get(MAIN_SECTION));
                res.append(result.get(SELECTION_SECTION));
                res.append(result.get(SELECTION_MASK_SECTION));
+               res.append("</g>");
                res.append("</svg>");
 
 //             System.err.println(" == FINAL RESULT == ");
@@ -808,11 +837,7 @@ public class SCLScenegraph {
                     parentBuilder2.append(SELECTION_SECTION, "\n<g style=\"visibility:hidden\" class=\"selection\" id=\"" + key + "\">");
                     parentBuilder2.append(SELECTION_SECTION, svg);
                     parentBuilder2.append(SELECTION_SECTION, "\n</g>");
-                    AffineTransform transform = svgGenerator.getTransform();
-                    double[] matrix = new double[6];
-                    transform.getMatrix(matrix);
-                    String matrixString = String.format("matrix(%f,%f,%f,%f,%f,%f)", matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
-                    parentBuilder2.append(SELECTION_MASK_SECTION, "\n<g class=\"selectionMask\" id=\"" + key + "\" transform=\"" + matrixString + "\">");
+                    parentBuilder2.append(SELECTION_MASK_SECTION, "\n<g class=\"selectionMask\" id=\"" + key /*+ "\" transform=\"" + matrixString + "\"*/+ "\">");
                     Rectangle2D rect = n.getRect();
                     // NaN
                     if(rect.getHeight() == rect.getHeight() && rect.getWidth() == rect.getWidth()) {