With the latest Mark's patch, it is possible to show the changed mouse
cursor in the Internal Frame borders, indicating the possibility and
direction of resize. Apart that this is the needed feature it also makes
the frame resizing during testing debugging much easier.
The resize arrows at the corners seem appearing a little bit incorrectly
(inside the decorative corners should probably resize in both
dimensions?). But the size of the decorative corner, 15, is now hard
coded in MetalBorders.InternalFrameBorder and I am not sure how it is
better to pull it out. Anyway, the cursor shows how the frame will be
resized in reality, because the resizing algorithm has the same problem.
2006-03-23 Audrius Meskauskas <[EMAIL PROTECTED]>
* javax/swing/plaf/basic/BasicInternalFrameUI.java
(BorderListener.showingResizeCursor): New field.
(BorderListener.mouseMoved, BorderListner.mouseExited):
Implemented.
Index: BasicInternalFrameUI.java
===================================================================
RCS file: /sources/classpath/classpath/javax/swing/plaf/basic/BasicInternalFrameUI.java,v
retrieving revision 1.30
diff -u -r1.30 BasicInternalFrameUI.java
--- BasicInternalFrameUI.java 15 Mar 2006 19:00:25 -0000 1.30
+++ BasicInternalFrameUI.java 23 Mar 2006 11:10:56 -0000
@@ -42,6 +42,7 @@
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
+import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Insets;
@@ -164,6 +165,12 @@
protected class BorderListener extends MouseInputAdapter
implements SwingConstants
{
+ /**
+ * If true, the cursor is being already shown in the alternative "resize"
+ * shape.
+ */
+ transient boolean showingResizeCursor;
+
/** FIXME: Use for something. */
protected final int RESIZE_NONE = 0;
@@ -263,25 +270,69 @@
/**
* This method is called when the mouse exits the JInternalFrame.
- *
+ *
* @param e The MouseEvent.
*/
public void mouseExited(MouseEvent e)
{
- // There is nothing to do when the mouse exits
- // the border area.
+ // Reset the cursor shape.
+ if (showingResizeCursor)
+ {
+ frame.setCursor(Cursor.getDefaultCursor());
+ showingResizeCursor = false;
+ }
}
/**
- * This method is called when the mouse is moved inside the
- * JInternalFrame.
- *
+ * This method is called when the mouse is moved inside the JInternalFrame.
+ *
* @param e The MouseEvent.
*/
public void mouseMoved(MouseEvent e)
{
- // There is nothing to do when the mouse moves
- // over the border area.
+ // Turn off the resize cursor if we are in the frame header.
+ if (showingResizeCursor && e.getSource() != frame)
+ {
+ frame.setCursor(Cursor.getDefaultCursor());
+ showingResizeCursor = false;
+ }
+ else if (e.getSource()==frame && frame.isResizable())
+ {
+ int cursor;
+ switch (sectionOfClick(e.getX(), e.getY()))
+ {
+ case NORTH:
+ cursor = Cursor.N_RESIZE_CURSOR;
+ break;
+ case NORTH_EAST:
+ cursor = Cursor.NE_RESIZE_CURSOR;
+ break;
+ case EAST:
+ cursor = Cursor.E_RESIZE_CURSOR;
+ break;
+ case SOUTH_EAST:
+ cursor = Cursor.SE_RESIZE_CURSOR;
+ break;
+ case SOUTH:
+ cursor = Cursor.S_RESIZE_CURSOR;
+ break;
+ case SOUTH_WEST:
+ cursor = Cursor.SW_RESIZE_CURSOR;
+ break;
+ case WEST:
+ cursor = Cursor.W_RESIZE_CURSOR;
+ break;
+ case NORTH_WEST:
+ cursor = Cursor.NW_RESIZE_CURSOR;
+ break;
+ default:
+ cursor = Cursor.DEFAULT_CURSOR;
+ }
+
+ Cursor resize = Cursor.getPredefinedCursor(cursor);
+ frame.setCursor(resize);
+ showingResizeCursor = true;
+ }
}
/**
