Author: ruschein
Date: 2009-12-01 16:20:48 -0800 (Tue, 01 Dec 2009)
New Revision: 18638
Modified:
corelibs/trunk/ding/src/ding/view/DGraphView.java
Log:
Made nested network images' transparent.
Modified: corelibs/trunk/ding/src/ding/view/DGraphView.java
===================================================================
--- corelibs/trunk/ding/src/ding/view/DGraphView.java 2009-12-02 00:04:26 UTC
(rev 18637)
+++ corelibs/trunk/ding/src/ding/view/DGraphView.java 2009-12-02 00:20:48 UTC
(rev 18638)
@@ -2350,13 +2350,14 @@
*
* @param width Width of desired image.
* @param height Height of desired image.
- * @param shrink Percent to shrink the network shown in the image.
+ * @param shrink Percent to shrink the network shown in the image.
+ * @param skipBackground If true, we don't draw the background
* This doesn't shrink the image, just the network shown, as if the
user zoomed out.
* Can be between 0 and 1, if not it will default to 1.
* @return Image
* @throws IllegalArgumentException
*/
- public Image createImage(int width, int height, double shrink) {
+ private Image createImage(final int width, final int height, double
shrink, final boolean skipBackground) {
// Validate arguments
if (width < 0 || height < 0) {
throw new
IllegalArgumentException("DGraphView.createImage(int width, int height): "
@@ -2373,13 +2374,17 @@
final Image image = new BufferedImage(width, height,
BufferedImage.TYPE_INT_ARGB_PRE);
final Graphics g = image.getGraphics();
- // paint background canvas into image
- Dimension originalSize = m_backgroundCanvas.getSize();
- m_backgroundCanvas.setSize(width, height);
- m_backgroundCanvas.paint(g);
- // Restore background size
- m_backgroundCanvas.setSize(originalSize);
+ Dimension originalSize;
+ if (!skipBackground) {
+ // paint background canvas into image
+ originalSize = m_backgroundCanvas.getSize();
+ m_backgroundCanvas.setSize(width, height);
+ m_backgroundCanvas.paint(g);
+ // Restore background size
+ m_backgroundCanvas.setSize(originalSize);
+ }
+
// paint inner canvas (network)
originalSize = m_networkCanvas.getSize();
m_networkCanvas.setSize(width, height);
@@ -2402,6 +2407,23 @@
/**
+ * Method to return a reference to an Image object,
+ * which represents the current network view.
+ *
+ * @param width Width of desired image.
+ * @param height Height of desired image.
+ * @param shrink Percent to shrink the network shown in the image.
+ * This doesn't shrink the image, just the network shown, as if the
user zoomed out.
+ * Can be between 0 and 1, if not it will default to 1.
+ * @return Image
+ * @throws IllegalArgumentException
+ */
+ public Image createImage(int width, int height, double shrink) {
+ return createImage(width, height, shrink, /* skipBackground =
*/ false);
+ }
+
+
+ /**
* utility that returns the nodeView that is located at input point
*
* @param pt
@@ -2585,7 +2607,7 @@
if (!latest) {
// Need to update snapshot.
final Rectangle2D rect = new
Rectangle2D.Double(-width/2, -height/2, width, height);
- snapshotImage = new TexturePaint((BufferedImage)
createImage(DEF_SNAPSHOT_SIZE, DEF_SNAPSHOT_SIZE, 1), rect);
+ snapshotImage = new TexturePaint((BufferedImage)
createImage(DEF_SNAPSHOT_SIZE, DEF_SNAPSHOT_SIZE, 1, /* skipBackground = */
true), rect);
latest = true;
}
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