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-rw-r--r--libjava/java/awt/Component.java117
1 files changed, 58 insertions, 59 deletions
diff --git a/libjava/java/awt/Component.java b/libjava/java/awt/Component.java
index 5c61b91..a11c407 100644
--- a/libjava/java/awt/Component.java
+++ b/libjava/java/awt/Component.java
@@ -21,12 +21,15 @@ import java.beans.PropertyChangeSupport;
import java.beans.PropertyChangeListener;
// import javax.accessibility.AccessibleContext;
-/* Status: Incomplete. The event dispatch mechanism is implemented. All
- other methods defined in the J2SE 1.3 API javadoc exist, but are mostly
- incomplete or only stubs; except for methods relating to the Drag and Drop,
- Input Method, and Accessibility frameworks: These methods are present but
- commented out. */
-
+/**
+ * The root of all evil.
+ *
+ * Status: Incomplete. The event dispatch mechanism is implemented. All
+ * other methods defined in the J2SE 1.3 API javadoc exist, but are mostly
+ * incomplete or only stubs; except for methods relating to the Drag and Drop,
+ * Input Method, and Accessibility frameworks: These methods are present but
+ * commented out.
+ */
public abstract class Component implements ImageObserver, MenuContainer,
java.io.Serializable
{
@@ -38,11 +41,11 @@ public abstract class Component implements ImageObserver, MenuContainer,
RIGHT_ALIGNMENT = 1.0f,
TOP_ALIGNMENT = 0.0f;
- /* Make the treelock a String so that it can easily be identified
- in debug dumps. We clone the String in order to avoid a conflict in
- the unlikely event that some other package uses exactly the same string
- as a lock object. */
- static Object treeLock = new String("AWT_TREE_LOCK");
+ /* Make the treelock a String so that it can easily be identified
+ in debug dumps. We clone the String in order to avoid a conflict in
+ the unlikely event that some other package uses exactly the same string
+ as a lock object. */
+ static Object treeLock = new String("AWT_TREE_LOCK");
/* Serialized fields from the serialization spec. */
// FIXME: Default values?
@@ -140,7 +143,8 @@ public abstract class Component implements ImageObserver, MenuContainer,
/** @since 1.3 */
public GraphicsConfiguration getGraphicsConfiguration()
{
- // FIXME
+ if (parent != null)
+ return parent.getGraphicsConfiguration();
return null;
}
@@ -166,8 +170,7 @@ public abstract class Component implements ImageObserver, MenuContainer,
/** @since 1.2 */
public boolean isDisplayable()
{
- // FIXME
- return false;
+ return (peer != null);
}
public boolean isVisible()
@@ -225,28 +228,38 @@ public abstract class Component implements ImageObserver, MenuContainer,
// FIXME
}
+ /** @specnote 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.
+ We do the same to preserve compatibility for subclasses. */
public void setVisible(boolean b)
{
- visible = true;
- // FIXME
+ show (b);
}
/** @deprecated */
public void show()
{
- setVisible(true);
+ if (peer != null)
+ peer.setVisible(true);
+ this.visible = true;
}
/** @deprecated */
public void show(boolean b)
{
- setVisible(b);
+ if (b)
+ show();
+ else
+ hide();
}
/** @deprecated */
public void hide()
{
- setVisible(false);
+ if (peer != null)
+ peer.setVisible(false);
+ this.visible = false;
}
public Color getForeground()
@@ -256,6 +269,8 @@ public abstract class Component implements ImageObserver, MenuContainer,
public void setForeground(Color c)
{
+ if (peer != null)
+ peer.setForeground(c);
this.foreground = c;
}
@@ -266,6 +281,8 @@ public abstract class Component implements ImageObserver, MenuContainer,
public void setBackground(Color c)
{
+ if (peer != null)
+ peer.setBackground(c);
this.background = c;
}
@@ -276,6 +293,8 @@ public abstract class Component implements ImageObserver, MenuContainer,
public void setFont(Font f)
{
+ if (peer != null)
+ peer.setFont(f);
this.font = f;
}
@@ -633,7 +652,7 @@ public abstract class Component implements ImageObserver, MenuContainer,
public int checkImage(Image image, ImageObserver observer)
{
// FIXME
- return false;
+ return 0;
}
public int checkImage(Image image, int width, int height, ImageObserver observer)
@@ -699,41 +718,6 @@ public abstract class Component implements ImageObserver, MenuContainer,
{
dispatchEventImpl(e);
}
- /* This code needs to be split up and put in to dispatchEventImpl() in the
- appropriate Component subclasses:
-
- else if ((e.id <= WindowEvent.WINDOW_LAST
- && e.id >= WindowEvent.WINDOW_FIRST)
- && (windowListener != null
- || eventMask & AWTEvent.WINDOW_EVENT_MASK != 0))
- processEvent(e);
- else if ((e.id <= AdjustmentEvent.ADJUSTMENT_LAST
- && e.id >= AdjustmentEvent.ADJUSTMENT_FIRST)
- && (adjustmentListener != null
- || eventMask & AWTEvent.ADJUSTMENT_EVENT_MASK != 0))
- processEvent(e);
- else if ((e.id <= ItemEvent.ITEM_LAST
- && e.id >= ItemEvent.ITEM_FIRST)
- && (itemListener != null
- || eventMask & AWTEvent.ITEM_EVENT_MASK != 0))
- processEvent(e);
- else if ((e.id <= PaintEvent.PAINT_LAST
- && e.id >= PaintEvent.PAINT_FIRST)
- && (paintListener != null
- || eventMask & AWTEvent.PAINT_EVENT_MASK != 0))
- processEvent(e);
- else if ((e.id <= TextEvent.TEXT_LAST
- && e.id >= TextEvent.TEXT_FIRST)
- && (textListener != null
- || eventMask & AWTEvent.TEXT_EVENT_MASK != 0))
- processEvent(e);
- else if ((e.id <= InvocationEvent.INVOCATION_LAST
- && e.id >= InvocationEvent.INVOCATION_FIRST)
- && (invocationListener != null
- || eventMask & AWTEvent.INVOCATION_EVENT_MASK != 0))
- processEvent(e);
- }
- */
void dispatchEventImpl(AWTEvent e)
{
@@ -1218,12 +1202,16 @@ public abstract class Component implements ImageObserver, MenuContainer,
public void addNotify()
{
- // FIXME
+ if (peer == null)
+ peer = getToolkit().createComponent(this);
}
public void removeNotify()
- {
- // FIXME
+ {
+ if (peer != null)
+ peer.dispose();
+ peer = null;
+ visible = false;
}
/** @deprecated */
@@ -1312,26 +1300,37 @@ public abstract class Component implements ImageObserver, MenuContainer,
public void addPropertyChangeListener(PropertyChangeListener listener)
{
-
+ if (changeSupport == null)
+ changeSupport = new PropertyChangeSupport(this);
+ changeSupport.addPropertyChangeListener(listener);
}
public void removePropertyChangeListener(PropertyChangeListener listener)
{
+ if (changeSupport != null)
+ changeSupport.removePropertyChangeListener(listener);
}
public void addPropertyChangeListener(String propertyName,
PropertyChangeListener listener)
{
+ if (changeSupport == null)
+ changeSupport = new PropertyChangeSupport(this);
+ changeSupport.addPropertyChangeListener(propertyName, listener);
}
public void removePropertyChangeListener(String propertyName,
PropertyChangeListener listener)
{
+ if (changeSupport != null)
+ changeSupport.removePropertyChangeListener(propertyName, listener);
}
protected void firePropertyChange(String propertyName, Object oldValue,
Object newValue)
{
+ if (changeSupport != null)
+ changeSupport.firePropertyChange(propertyName, oldValue, newValue);
}
public void setComponentOrientation(ComponentOrientation o)
generated by cgit v1.1 at 2025-04-16 01:24:52 +0000