2004-01-05 Thomas Fitzsimmons <fitzsim@redhat.com>

	* gnu/java/awt/peer/gtk/GtkScrollPanePeer.java,
	jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollPanePeer.c
	(create(int, int)): New method.
	(create): Call new create method.
	(gtkScrolledWindowNew, gtkScrolledWindowSetSize): Remove
	methods.
	(childResized): Remove native implementation.  Implement in
	Java.
	(getHScrollbarHeight, getVScrollbarWidth): Call
	gtk_widget_size_request to get scrollbar dimensions.
	* java/awt/ScrollPane.java (getViewportSize): Reimplement.  Only
	call getVScrollbarWidth and getHScrollbarHeight when vertical
	and horizontal scrollbars respectively are needed.
	(doLayout): Enlarge child if it is smaller than the viewport.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@75446 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 25 insertions, 6 deletions

diff --git a/libjava/gnu/java/awt/peer/gtk/GtkScrollPanePeer.java b/libjava/gnu/java/awt/peer/gtk/GtkScrollPanePeer.java
index cd2c112c283..e4f5e8f312c 100644
--- a/libjava/gnu/java/awt/peer/gtk/GtkScrollPanePeer.java
+++ b/libjava/gnu/java/awt/peer/gtk/GtkScrollPanePeer.java
@@ -46,15 +46,17 @@ import java.awt.peer.ScrollPanePeer;
 public class GtkScrollPanePeer extends GtkContainerPeer
   implements ScrollPanePeer
 {
-  native void create ();
+  native void create (int width, int height);
+
+  void create ()
+  {
+    create (awtComponent.getWidth (), awtComponent.getHeight ());
+  }
 
-  native void gtkScrolledWindowNew(ComponentPeer parent,
-				   int policy, int w, int h, int[] dims);
   native void gtkScrolledWindowSetScrollPosition(int x, int y);
   native void gtkScrolledWindowSetHScrollIncrement (int u);
   native void gtkScrolledWindowSetVScrollIncrement (int u);
-  native void gtkScrolledWindowSetSize(int w, int h);
-  
+
   public GtkScrollPanePeer (ScrollPane sp)
   {
     super (sp);
@@ -63,7 +65,24 @@ public class GtkScrollPanePeer extends GtkContainerPeer
   }
 
   native void setPolicy (int policy);
-  native public void childResized (int width, int height);
+  public void childResized (int width, int height)
+  {
+    int dim[] = new int[2];
+
+    gtkWidgetGetDimensions (dim);
+
+    // If the child is in this range, GTK adds both scrollbars, but
+    // the AWT doesn't.  So set the peer's scroll policy to
+    // GTK_POLICY_NEVER.
+    if ((width > dim[0] - getVScrollbarWidth ()
+	 && width <= dim[0])
+	&& (height > dim[1] - getHScrollbarHeight ()
+	    && height <= dim[1]))
+      setPolicy (ScrollPane.SCROLLBARS_NEVER);
+    else
+      setPolicy (((ScrollPane) awtComponent).getScrollbarDisplayPolicy ());
+  }
+
   native public int getHScrollbarHeight ();
   native public int getVScrollbarWidth ();
   native public void setScrollPosition (int x, int y);