This is not so trivial, because, following the API,
getScrollableUnitIncrement should also perform the rounding operation,
completely exposing the subsequent item. I will think how to do this better.
Audrius.
Roman Kennke wrote:
Hi Audrius,
Am Montag, den 20.03.2006, 01:06 +0100 schrieb Audrius Meskauskas:
Surely, we can make via BasicScrollPaneUI and then have the JTrees
scrolling with the wheel as well!
Wow, very nice!
However, I would not recommend to change the getScrollableUnitIncrement
methods. The units must stay the same (like one row for a JTable, one
line of text in JTextComponent and so on). This is because a single
click on a scollbar button scrolls the thing for exactly one unit. Only
the MouseWheelListener should multiply the unit by 3 to provide the
wheel scrolling behaviour of 3 lines per wheel move.
/Roman
2006-03-20 Audrius Meskauskas <[EMAIL PROTECTED]>
* javax/swing/JTable.java (ROWS_PER_WHEEL_CLICK): New field.
(getScrollableUnitIncrement): Rewritten.
* javax/swing/JTree.java (ROWS_PER_WHEEL_CLICK): New field.
(getScrollableUnitIncrement): Rewritten.
(getScrollableBlockIncrement): Rewritten.
* javax/swing/plaf/basic/BasicScrollPaneUI.java
(MouseWheelHandler): Implemented. (ViewportContainerListener): New
class.
(containerListener): New field. (SCROLL_NON_SCROLABLES): New field.
(installListeners): Install wheel listeners. (uninstallListeners):
Uninstall wheel listeners.
* javax/swing/plaf/basic/BasicTableUI.java: Remove the implementation
of the MouseWheelListener. (installListeners): Do not install wheel
listener. (ROWS_PER_WHEEL_CLICK): Removed.
