Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / tooltip / AWTTooltipProvider.java

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/tooltip/AWTTooltipProvider.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/tooltip/AWTTooltipProvider.java
new file mode 100644 (file)
index 0000000..5482589
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/tooltip/AWTTooltipProvider.java
@@ -0,0 +1,105 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.g2d.tooltip;\r
+\r
+import java.awt.Frame;\r
+import java.awt.GraphicsDevice;\r
+import java.awt.GraphicsEnvironment;\r
+import java.awt.Rectangle;\r
+\r
+import javax.swing.SwingUtilities;\r
+\r
+import org.simantics.g2d.element.IElement;\r
+\r
+/**\r
+ * AWT based tooltip.\r
+ * \r
+ * @author Marko Luukkainen <marko.luukkainen@vtt.fi>\r
+ *\r
+ */\r
+public abstract class AWTTooltipProvider implements TooltipProvider {\r
+\r
+       private Frame frame;\r
+       \r
+       /**\r
+        * Construct popup UI.\r
+        * @param frame\r
+        * @param element\r
+        */\r
+       public abstract void constructPopup(Frame frame,IElement element);\r
+       \r
+       @Override\r
+       public void showTooltip(final IElement element, final int x, final int y) {\r
+               SwingUtilities.invokeLater(new Runnable() {     \r
+                       @Override\r
+                       public void run() {\r
+                               if (frame != null) {\r
+                                       frame.setVisible(false);\r
+                                       frame.dispose();\r
+                                       frame = null;\r
+                               }\r
+                               \r
+                               frame = new Frame();\r
+                               frame.setFocusableWindowState(false);\r
+                               frame.setUndecorated(true);\r
+                               \r
+                               constructPopup(frame, element);\r
+                               \r
+                               frame.pack();\r
+                               \r
+                               setTooltipPosition(x,y);\r
+                               \r
+                               frame.setVisible(true);\r
+                       }\r
+               });\r
+       }\r
+       \r
+       /**\r
+        * \r
+        * @param x\r
+        * @param y\r
+        */\r
+       private void setTooltipPosition(int x, int y) {\r
+\r
+               GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();\r
+               for (GraphicsDevice gd : ge.getScreenDevices()) {\r
+                       Rectangle r = gd.getDefaultConfiguration().getBounds();\r
+                       if (r.contains(x, y)) {\r
+                               Rectangle ttr = new Rectangle(x, y, frame.getWidth(), frame.getHeight());\r
+                               //ttr.y -= frame.getHeight();\r
+                               ttr.y += 24;\r
+                               if (!r.contains(ttr)) {\r
+                                       ttr.y = Math.max(r.y, ttr.y);\r
+                                       ttr.y = Math.min(r.y + r.height, ttr.y + ttr.height) - ttr.height;\r
+                                       ttr.x = Math.max(r.x, ttr.x);\r
+                                       ttr.x = Math.min(r.x + r.width, ttr.x + ttr.width) - ttr.width;\r
+                               }\r
+                               frame.setLocation(ttr.x,ttr.y);\r
+                               return;\r
+                       }\r
+               }\r
+       }\r
+       \r
+       \r
+       @Override\r
+       public void hideTooltip(IElement element) {\r
+               SwingUtilities.invokeLater(new Runnable() {     \r
+                       @Override\r
+                       public void run() {\r
+                               frame.setVisible(false);\r
+                               frame.dispose();\r
+                               frame = null;\r
+                               \r
+                       }\r
+               });\r
+       }\r
+}\r