Scrolling: JViewport, JScrollPane, and Related Classes

Other Swing Changes

New JViewport scrollMode Property
Interactive scrolling speed has proven to be perhaps the most important factor in users perception of overall swing performance. 1.3 adds a new optimization, called "BLIT_SCROLL_MODE" (now the default) that copies unobscured areas of the components heavy weight ancestor to effect a scroll. Previously we had offered a related optimzation that managed a per viewport backing store image. Although still supported, the backingStoreEnabled property has been deprecated.
See:
public static final int BLIT_SCROLL_MODE public static final int BACKINGSTORE_SCROLL_MODE public static final int SIMPLE_SCROLL_MODE public void setScrollMode(int mode) public int getScrollMode() protected boolean backingStore // Deprecated public boolean isBackingStoreEnabled() // Deprecated
public void setBackingStoreEnabled(boolean enabled) // Deprecated

Please send comments to: swing-feedback@java.sun.com. This is not a subscription list.

Java Software