XToolkit.java (getFontMetrics): initialize if necessary.

2003-02-18  Hans Boehm  <Hans.Boehm@hp.com>

	* gnu/awt/xlib/XToolkit.java (getFontMetrics): initialize
	if necessary.

	* gnu/java/awt/peer/gtk/GtkButtonPeer.java,
	gnu/java/awt/peer/gtk/GtkTextAreaPeer.java,
	gnu/java/awt/peer/gtk/GtkTextFieldPeer.java,
	jni/gtk-peer/gnu_java_awt_peer_gtk_GtkButtonPeer.c,
	jni/gtk-peer/gnu_java_awt_peer_gtk_GtkTextAreaPeer.c,
	jni/gtk-peer/gnu_java_awt_peer_gtk_GtkTextFieldPeer.c
	(setFont, gtkSetFont): add.
	gnu/java/awt/peer/gtk/GtkComponentPeer.java (GtkComponentPeer):
	Propagate font to peer.  (setFont): add FIXME comment.

	* jni/gtk-peer/gnu_java_awt_peer_gtk_GtkTextAreaPeer.c
	(gtkTextGetSize): fix height, width computation.

	* gnu/java/awt/peer/gtk/GtkFontPeer.java (GtkFontPeer):
	Make X font name a bit less bogus.

	* jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollBarPeer.c
	(post_adjustment_event): Pass on GTK_SCROLL_NONE.

	* java/awt/Scrollbar.java (setValues): Fix visibleAmount range check.
	(processAdjustmentEvent): Adjust value.

	* java/awt/FlowLayout.java (layoutContainer) Fix 2 indexing and one
	logic errors.

	* java/awt/Component.java (setVisible, show, hide): Call show and
	hide methods in subclasses.
	(getPreferredSize): don't set prefSize before we have peer.

	* java/awt/TextArea.java, java/awt/TextField.java (getPreferredSize):
	Guess (0,0) if we don't have peer.

From-SVN: r63077

libjava/java/awt/Component.java

@@ -844,9 +844,10 @@ public abstract class Component
     // Inspection by subclassing shows that Sun's implementation calls
     // show(boolean) which then calls show() or hide(). It is the show()
     // method that is overriden in subclasses like Window.
-    if (peer != null)
-      peer.setVisible(b);
-    this.visible = b;
+    if (b)
+      show();
+    else
+      hide();
   }
 
   /**
@@ -856,7 +857,9 @@ public abstract class Component
    */
   public void show()
   {
-    setVisible(true);
+    if (peer != null)
+      peer.setVisible(true);
+    this.visible = true;
   }
 
   /**
@@ -877,7 +880,9 @@ public abstract class Component
    */
   public void hide()
   {
-    setVisible(false);
+    if (peer != null)
+      peer.setVisible(false);
+    this.visible = false;
   }
 
   /**
@@ -1448,8 +1453,10 @@ public abstract class Component
   public Dimension getPreferredSize()
   {
     if (prefSize == null)
-      prefSize = (peer != null ? peer.getPreferredSize()
-                       : new Dimension(width, height));
+      if (peer == null)
+	return new Dimension(width, height);
+      else 
+        prefSize = peer.getPreferredSize();
     return prefSize;
   }
 

libjava/java/awt/FlowLayout.java

@@ -171,13 +171,13 @@ public class FlowLayout implements LayoutManager, Serializable
 	    int new_h = 0;
 	    int j;
 	    boolean found_one = false;
-	    for (j = i; j < num && ! found_one; ++j)
+	    for (j = i; j < num; ++j)
 	      {
 		// Skip invisible items.
-		if (! comps[i].visible)
+		if (! comps[j].visible)
 		  continue;
 
-		Dimension c = comps[i].getPreferredSize ();
+		Dimension c = comps[j].getPreferredSize ();
 
 		int next_w = new_w + hgap + c.width;
 		if (next_w <= d.width || ! found_one)

libjava/java/awt/Scrollbar.java

@@ -390,8 +390,8 @@ setValues(int value, int visibleAmount, int minimum, int maximum)
   if (value > maximum)
     value = maximum;
 
-  if (visibleAmount > value)
-    visibleAmount = value;
+  if (visibleAmount > maximum - minimum)
+    visibleAmount = maximum - minimum;
 
   this.value = value;
   this.visibleAmount = visibleAmount;
@@ -664,6 +664,7 @@ processEvent(AWTEvent event)
 protected void
 processAdjustmentEvent(AdjustmentEvent event)
 {
+  value = event.getValue();
   if (adjustment_listeners != null)
     adjustment_listeners.adjustmentValueChanged(event);
 }

libjava/java/awt/TextArea.java

@@ -370,7 +370,11 @@ getPreferredSize(int rows, int columns)
 {
   TextAreaPeer tap = (TextAreaPeer)getPeer();
   if (tap == null)
-    return(null); // FIXME: What do we do if there is no peer?
+    {
+      // Sun's JDK just seems to return Dimension(0,0) in this case.
+      // we do the same.
+      return new Dimension(0, 0);
+    }
 
   return(tap.getPreferredSize(rows, columns));
 }

libjava/java/awt/TextField.java

@@ -345,8 +345,9 @@ getPreferredSize(int columns)
 {
   TextFieldPeer tfp = (TextFieldPeer)getPeer();
   if (tfp == null)
-    return(null); // FIXME: What do we do if there is no peer?
-
+    {
+      return new Dimension(0, 0);
+    }
   return(tfp.getPreferredSize(columns));
 }