X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.trend%2Fsrc%2Forg%2Fsimantics%2Ftrend%2Fimpl%2FTextNode.java;fp=bundles%2Forg.simantics.trend%2Fsrc%2Forg%2Fsimantics%2Ftrend%2Fimpl%2FTextNode.java;h=6a4026fc85f8001e0831466bcbeeadf3f0d28b48;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.trend/src/org/simantics/trend/impl/TextNode.java b/bundles/org.simantics.trend/src/org/simantics/trend/impl/TextNode.java
new file mode 100644
index 000000000..6a4026fc8
--- /dev/null
+++ b/bundles/org.simantics.trend/src/org/simantics/trend/impl/TextNode.java
@@ -0,0 +1,115 @@
+/*******************************************************************************
+ * 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.trend.impl;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.font.GlyphVector;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.Rectangle2D;
+
+import org.simantics.g2d.utils.GridUtil;
+import org.simantics.scenegraph.ExportableWidget.OutputWidget;
+
+/**
+ * TextNode, the text is centered and scaled to fit inside the bounds.
+ *
+ * @author toni.kalajainen
+ */
+@OutputWidget("text")
+public class TextNode extends TrendGraphicalNode {
+
+    private static final long serialVersionUID = 8508750881358776559L;
+
+    String      text   = null;
+    Font        font   = null;
+    Color       color  = Color.BLACK;
+    
+    transient double sx, sy, tw, th, tx, ty;
+
+    @SyncField("font")
+    public void setFont(Font font) {
+        this.font = font;
+    }
+    
+    @SyncField("text")
+    public void setText(String text) {
+        this.text = text;
+    }
+    
+    @SyncField("color")
+    public void setColor(Color color) {
+        this.color = color;
+    }
+    
+    public void layout() {
+		GlyphVector glyphVector = font.createGlyphVector(GridUtil.frc, text);
+    	Rectangle2D tr = glyphVector.getVisualBounds().getBounds2D();
+    	tw = tr.getWidth();
+    	th = tr.getHeight();
+    	sx = getWidth() / tw;
+    	sy = getHeight() / th;
+    	tx = -tr.getX();
+    	ty = -tr.getY();
+    	
+    	// Fix horiz scale param sx
+    	if (sx<1.0) {
+        	// Text is too wide
+    		// Scale-down to fit rectangle width
+    		tw *= sx;
+    		th *= sx;
+    		sy *= sx;
+    		tx *= sx;
+    		ty *= sx;
+    	} else {
+    		// Text is ok horizontally. No need to scale.
+    		sx = 1.0;
+    	}
+    	
+    	// Fix vert scale param sy
+    	if (sy<1.0) {
+    		// Text is too tall
+    		// Scale-down to fit rectangle height
+    		tw *= sy;
+    		th *= sy;
+    		sx *= sy;
+    		tx *= sy;
+    		ty *= sy;
+    	} else {
+    		// Text is ok vertically. No need to scale.
+    		sy = 1.0;
+    	}
+    	
+        tx += (bounds.getWidth() - tw) / 2;
+        ty += (bounds.getHeight() - th) / 2;    	
+    }
+
+	@Override
+	protected void doRender(Graphics2D g) {
+        if (text == null || bounds == null || font == null || color == null)
+            return;
+
+        g.setFont(font);
+        g.setColor(color);
+        
+        AffineTransform at = g.getTransform();
+        
+        g.translate( bounds.getX(), bounds.getY() );
+        g.translate(tx, ty);
+        g.scale(sx, sy);
+
+        g.drawString(text, 0, 0);
+        g.setTransform( at );
+	}    
+    
+}