Java Code Examples for java.awt.Component#getTreeLock()

@Override
public void addLayoutComponent(String name, Component component) {
  synchronized (component.getTreeLock()) {
    if (name == null || TOP.equalsIgnoreCase(name)) {
      myTop.add(component);
    }
    else if (CENTER.equalsIgnoreCase(name)) {
      myCenter.add(component);
    }
    else if (BOTTOM.equalsIgnoreCase(name)) {
      myBottom.add(component);
    }
    else {
      throw new IllegalArgumentException("unsupported name: " + name);
    }
  }
}
 

public void removeLayoutComponent(Component comp) {
    synchronized (comp.getTreeLock()) {
        if (comp == center) {
            center = null;
            map.remove(center);
        } else if (comp == north) {
            north = null;
            map.remove(north);
        } else if (comp == south) {
            south = null;
            map.remove(south);
        } else if (comp == east) {
            east = null;
            map.remove(east);
        } else if (comp == west) {
            west = null;
            map.remove(west);
        }
    }
}
 

public void removeLayoutComponent(Component comp) {
    synchronized (comp.getTreeLock()) {
        if (comp == center) {
            center = null;
            map.remove(center);
        } else if (comp == north) {
            north = null;
            map.remove(north);
        } else if (comp == south) {
            south = null;
            map.remove(south);
        } else if (comp == east) {
            east = null;
            map.remove(east);
        } else if (comp == west) {
            west = null;
            map.remove(west);
        }
    }
}
 

@Override
public void addLayoutComponent(String name, Component component) {
  synchronized (component.getTreeLock()) {
    if (name == null || LEFT.equalsIgnoreCase(name)) {
      myLeft.add(component);
    }
    else if (CENTER.equalsIgnoreCase(name)) {
      myCenter.add(component);
    }
    else if (RIGHT.equalsIgnoreCase(name)) {
      myRight.add(component);
    }
    else {
      throw new IllegalArgumentException("unsupported name: " + name);
    }
  }
}
 

/**
 * Handles focus lost events for any component that's using
 * this input context.
 * These events are generated by AWT when the keyboard focus
 * moves away from a component.
 * Besides actual client components, the source components
 * may also be the composition area or any component in an
 * input method window.
 *
 * @param source the component losing the focus
 * @isTemporary whether the focus change is temporary
 */
private void focusLost(Component source, boolean isTemporary) {

    // see the note on synchronization in focusGained
    synchronized (source.getTreeLock()) {
        synchronized (this) {

            // We need to suppress deactivation if removeNotify has been called earlier.
            // This is indicated by isInputMethodActive == false.
            if (isInputMethodActive) {
                deactivateInputMethod(isTemporary);
            }

            awtFocussedComponent = null;
            if (inputMethod instanceof InputMethodAdapter) {
                ((InputMethodAdapter) inputMethod).setAWTFocussedComponent(null);
            }

            // hides the composition area if currently it is visible
            InputMethodContext inputContext = ((InputMethodContext)this);
            if (inputContext.isCompositionAreaVisible()) {
                inputContext.setCompositionAreaVisible(false);
                compositionAreaHidden = true;
            }
        }
    }
}
 

/**
 * Handles focus lost events for any component that's using
 * this input context.
 * These events are generated by AWT when the keyboard focus
 * moves away from a component.
 * Besides actual client components, the source components
 * may also be the composition area or any component in an
 * input method window.
 *
 * @param source the component losing the focus
 * @isTemporary whether the focus change is temporary
 */
private void focusLost(Component source, boolean isTemporary) {

    // see the note on synchronization in focusGained
    synchronized (source.getTreeLock()) {
        synchronized (this) {

            // We need to suppress deactivation if removeNotify has been called earlier.
            // This is indicated by isInputMethodActive == false.
            if (isInputMethodActive) {
                deactivateInputMethod(isTemporary);
            }

            awtFocussedComponent = null;
            if (inputMethod instanceof InputMethodAdapter) {
                ((InputMethodAdapter) inputMethod).setAWTFocussedComponent(null);
            }

            // hides the composition area if currently it is visible
            InputMethodContext inputContext = ((InputMethodContext)this);
            if (inputContext.isCompositionAreaVisible()) {
                inputContext.setCompositionAreaVisible(false);
                compositionAreaHidden = true;
            }
        }
    }
}
 

@Override
public void removeLayoutComponent(Component comp) {
    synchronized (comp.getTreeLock()) {
        if (middleComponent == comp) {
            middleComponent = null;
        } else {
            startComponents.remove(comp);
            endComponents.remove(comp);
        }

        fillComponents.remove(comp);
    }
}
 

/**
 * Handles focus lost events for any component that's using
 * this input context.
 * These events are generated by AWT when the keyboard focus
 * moves away from a component.
 * Besides actual client components, the source components
 * may also be the composition area or any component in an
 * input method window.
 *
 * @param source the component losing the focus
 * @isTemporary whether the focus change is temporary
 */
private void focusLost(Component source, boolean isTemporary) {

    // see the note on synchronization in focusGained
    synchronized (source.getTreeLock()) {
        synchronized (this) {

            // We need to suppress deactivation if removeNotify has been called earlier.
            // This is indicated by isInputMethodActive == false.
            if (isInputMethodActive) {
                deactivateInputMethod(isTemporary);
            }

            awtFocussedComponent = null;
            if (inputMethod instanceof InputMethodAdapter) {
                ((InputMethodAdapter) inputMethod).setAWTFocussedComponent(null);
            }

            // hides the composition area if currently it is visible
            InputMethodContext inputContext = ((InputMethodContext)this);
            if (inputContext.isCompositionAreaVisible()) {
                inputContext.setCompositionAreaVisible(false);
                compositionAreaHidden = true;
            }
        }
    }
}
 

/**
 * Handles focus lost events for any component that's using
 * this input context.
 * These events are generated by AWT when the keyboard focus
 * moves away from a component.
 * Besides actual client components, the source components
 * may also be the composition area or any component in an
 * input method window.
 *
 * @param source the component losing the focus
 * @isTemporary whether the focus change is temporary
 */
private void focusLost(Component source, boolean isTemporary) {

    // see the note on synchronization in focusGained
    synchronized (source.getTreeLock()) {
        synchronized (this) {

            // We need to suppress deactivation if removeNotify has been called earlier.
            // This is indicated by isInputMethodActive == false.
            if (isInputMethodActive) {
                deactivateInputMethod(isTemporary);
            }

            awtFocussedComponent = null;
            if (inputMethod instanceof InputMethodAdapter) {
                ((InputMethodAdapter) inputMethod).setAWTFocussedComponent(null);
            }

            // hides the composition area if currently it is visible
            InputMethodContext inputContext = ((InputMethodContext)this);
            if (inputContext.isCompositionAreaVisible()) {
                inputContext.setCompositionAreaVisible(false);
                compositionAreaHidden = true;
            }
        }
    }
}
 

public void removeLayoutComponent(Component comp) {
  synchronized (comp.getTreeLock()) {
    if (comp == north) {
      north = null;
    } else if (comp == south) {
      south = null;
    } else if (comp == east) {
      east = null;
    } else if (comp == west) {
      west = null;
    } else if (comp == basicInfoPane) {
      basicInfoPane = null;
    } else if (comp == mainBoard) {
      mainBoard = null;
    } else if (comp == variationPane) {
      variationPane = null;
    } else if (comp == winratePane) {
      winratePane = null;
    } else if (comp == subBoard) {
      subBoard = null;
    }
    if (comp == commentPane) {
      commentPane = null;
    } else if (comp == consolePane) {
      consolePane = null;
    }
  }
}
 

@Override
public void removeLayoutComponent(final Component comp) {
    synchronized (comp.getTreeLock()) {
        northList.remove(comp);
        southList.remove(comp);
        westList.remove(comp);
        eastList.remove(comp);
        centerList.remove(comp);
    }
}
 

public void addLayoutComponent(String name, Component comp) {
   super.addLayoutComponent(name, comp);
   synchronized (comp.getTreeLock()) {
     /* Special case:  treat null the same as "Center". */
     if (name == null) {
name = CENTER;
     }
     
     /* Assign the component to one of the known regions of the layout.
      */
     if (CENTER.equals(name)) 
center = comp;
     else if (NORTH.equals(name)) 
north = comp;
     else if (SOUTH.equals(name)) 
south = comp;
     else if (EAST.equals(name)) 
east = comp;
     else if (WEST.equals(name)) 
west = comp;
     else if (BEFORE_FIRST_LINE.equals(name)) 
firstLine = comp;
     else if (AFTER_LAST_LINE.equals(name)) 
lastLine = comp;
     else if (BEFORE_LINE_BEGINS.equals(name)) 
firstItem = comp;
     else if (AFTER_LINE_ENDS.equals(name)) 
lastItem = comp;      
   }
 }
 

/**
 * Handles focus lost events for any component that's using
 * this input context.
 * These events are generated by AWT when the keyboard focus
 * moves away from a component.
 * Besides actual client components, the source components
 * may also be the composition area or any component in an
 * input method window.
 *
 * @param source the component losing the focus
 * @isTemporary whether the focus change is temporary
 */
private void focusLost(Component source, boolean isTemporary) {

    // see the note on synchronization in focusGained
    synchronized (source.getTreeLock()) {
        synchronized (this) {

            // We need to suppress deactivation if removeNotify has been called earlier.
            // This is indicated by isInputMethodActive == false.
            if (isInputMethodActive) {
                deactivateInputMethod(isTemporary);
            }

            awtFocussedComponent = null;
            if (inputMethod instanceof InputMethodAdapter) {
                ((InputMethodAdapter) inputMethod).setAWTFocussedComponent(null);
            }

            // hides the composition area if currently it is visible
            InputMethodContext inputContext = ((InputMethodContext)this);
            if (inputContext.isCompositionAreaVisible()) {
                inputContext.setCompositionAreaVisible(false);
                compositionAreaHidden = true;
            }
        }
    }
}
 

/**
 * Handles focus lost events for any component that's using
 * this input context.
 * These events are generated by AWT when the keyboard focus
 * moves away from a component.
 * Besides actual client components, the source components
 * may also be the composition area or any component in an
 * input method window.
 *
 * @param source the component losing the focus
 * @isTemporary whether the focus change is temporary
 */
private void focusLost(Component source, boolean isTemporary) {

    // see the note on synchronization in focusGained
    synchronized (source.getTreeLock()) {
        synchronized (this) {

            // We need to suppress deactivation if removeNotify has been called earlier.
            // This is indicated by isInputMethodActive == false.
            if (isInputMethodActive) {
                deactivateInputMethod(isTemporary);
            }

            awtFocussedComponent = null;
            if (inputMethod instanceof InputMethodAdapter) {
                ((InputMethodAdapter) inputMethod).setAWTFocussedComponent(null);
            }

            // hides the composition area if currently it is visible
            InputMethodContext inputContext = ((InputMethodContext)this);
            if (inputContext.isCompositionAreaVisible()) {
                inputContext.setCompositionAreaVisible(false);
                compositionAreaHidden = true;
            }
        }
    }
}
 

/**
 * Handles focus gained events for any component that's using
 * this input context.
 * These events are generated by AWT when the keyboard focus
 * moves to a component.
 * Besides actual client components, the source components
 * may also be the composition area or any component in an
 * input method window.
 * <p>
 * When handling the focus event for a client component, this
 * method checks whether the input context was previously
 * active for a different client component, and if so, calls
 * endComposition for the previous client component.
 *
 * @param source the component gaining the focus
 */
private void focusGained(Component source) {

    /*
     * NOTE: When a Container is removing its Component which
     * invokes this.removeNotify(), the Container has the global
     * Component lock. It is possible to happen that an
     * application thread is calling this.removeNotify() while an
     * AWT event queue thread is dispatching a focus event via
     * this.dispatchEvent(). If an input method uses AWT
     * components (e.g., IIIMP status window), it causes deadlock,
     * for example, Component.show()/hide() in this situation
     * because hide/show tried to obtain the lock.  Therefore,
     * it's necessary to obtain the global Component lock before
     * activating or deactivating an input method.
     */
    synchronized (source.getTreeLock()) {
        synchronized (this) {
            if ("sun.awt.im.CompositionArea".equals(source.getClass().getName())) {
                // no special handling for this one
            } else if (getComponentWindow(source) instanceof InputMethodWindow) {
                // no special handling for this one either
            } else {
                if (!source.isDisplayable()) {
                    // Component is being disposed
                    return;
                }

                // Focus went to a real client component.
                // Check whether we're switching between client components
                // that share an input context. We can't do that earlier
                // than here because we don't want to end composition
                // until we really know we're switching to a different component
                if (inputMethod != null) {
                    if (currentClientComponent != null && currentClientComponent != source) {
                        if (!isInputMethodActive) {
                            activateInputMethod(false);
                        }
                        endComposition();
                        deactivateInputMethod(false);
                    }
                }

                currentClientComponent = source;
            }

            awtFocussedComponent = source;
            if (inputMethod instanceof InputMethodAdapter) {
                ((InputMethodAdapter) inputMethod).setAWTFocussedComponent(source);
            }

            // it's possible that the input method is still active because
            // we suppressed a deactivate cause by an input method window
            // coming up
            if (!isInputMethodActive) {
                activateInputMethod(true);
            }


            // If the client component is an active client with the below-the-spot
            // input style, then make the composition window undecorated without a title bar.
            InputMethodContext inputContext = ((InputMethodContext)this);
            if (!inputContext.isCompositionAreaVisible()) {
                  InputMethodRequests req = source.getInputMethodRequests();
                  if (req != null && inputContext.useBelowTheSpotInput()) {
                      inputContext.setCompositionAreaUndecorated(true);
                  } else {
                      inputContext.setCompositionAreaUndecorated(false);
                  }
            }
            // restores the composition area if it was set to invisible
            // when focus got lost
            if (compositionAreaHidden == true) {
                ((InputMethodContext)this).setCompositionAreaVisible(true);
                compositionAreaHidden = false;
            }
        }
    }
}
 

/**
 * Handles focus gained events for any component that's using
 * this input context.
 * These events are generated by AWT when the keyboard focus
 * moves to a component.
 * Besides actual client components, the source components
 * may also be the composition area or any component in an
 * input method window.
 * <p>
 * When handling the focus event for a client component, this
 * method checks whether the input context was previously
 * active for a different client component, and if so, calls
 * endComposition for the previous client component.
 *
 * @param source the component gaining the focus
 */
private void focusGained(Component source) {

    /*
     * NOTE: When a Container is removing its Component which
     * invokes this.removeNotify(), the Container has the global
     * Component lock. It is possible to happen that an
     * application thread is calling this.removeNotify() while an
     * AWT event queue thread is dispatching a focus event via
     * this.dispatchEvent(). If an input method uses AWT
     * components (e.g., IIIMP status window), it causes deadlock,
     * for example, Component.show()/hide() in this situation
     * because hide/show tried to obtain the lock.  Therefore,
     * it's necessary to obtain the global Component lock before
     * activating or deactivating an input method.
     */
    synchronized (source.getTreeLock()) {
        synchronized (this) {
            if ("sun.awt.im.CompositionArea".equals(source.getClass().getName())) {
                // no special handling for this one
            } else if (getComponentWindow(source) instanceof InputMethodWindow) {
                // no special handling for this one either
            } else {
                if (!source.isDisplayable()) {
                    // Component is being disposed
                    return;
                }

                // Focus went to a real client component.
                // Check whether we're switching between client components
                // that share an input context. We can't do that earlier
                // than here because we don't want to end composition
                // until we really know we're switching to a different component
                if (inputMethod != null) {
                    if (currentClientComponent != null && currentClientComponent != source) {
                        if (!isInputMethodActive) {
                            activateInputMethod(false);
                        }
                        endComposition();
                        deactivateInputMethod(false);
                    }
                }

                currentClientComponent = source;
            }

            awtFocussedComponent = source;
            if (inputMethod instanceof InputMethodAdapter) {
                ((InputMethodAdapter) inputMethod).setAWTFocussedComponent(source);
            }

            // it's possible that the input method is still active because
            // we suppressed a deactivate cause by an input method window
            // coming up
            if (!isInputMethodActive) {
                activateInputMethod(true);
            }


            // If the client component is an active client with the below-the-spot
            // input style, then make the composition window undecorated without a title bar.
            InputMethodContext inputContext = ((InputMethodContext)this);
            if (!inputContext.isCompositionAreaVisible()) {
                  InputMethodRequests req = source.getInputMethodRequests();
                  if (req != null && inputContext.useBelowTheSpotInput()) {
                      inputContext.setCompositionAreaUndecorated(true);
                  } else {
                      inputContext.setCompositionAreaUndecorated(false);
                  }
            }
            // restores the composition area if it was set to invisible
            // when focus got lost
            if (compositionAreaHidden == true) {
                ((InputMethodContext)this).setCompositionAreaVisible(true);
                compositionAreaHidden = false;
            }
        }
    }
}
 

/**
 * Handles focus gained events for any component that's using
 * this input context.
 * These events are generated by AWT when the keyboard focus
 * moves to a component.
 * Besides actual client components, the source components
 * may also be the composition area or any component in an
 * input method window.
 * <p>
 * When handling the focus event for a client component, this
 * method checks whether the input context was previously
 * active for a different client component, and if so, calls
 * endComposition for the previous client component.
 *
 * @param source the component gaining the focus
 */
private void focusGained(Component source) {

    /*
     * NOTE: When a Container is removing its Component which
     * invokes this.removeNotify(), the Container has the global
     * Component lock. It is possible to happen that an
     * application thread is calling this.removeNotify() while an
     * AWT event queue thread is dispatching a focus event via
     * this.dispatchEvent(). If an input method uses AWT
     * components (e.g., IIIMP status window), it causes deadlock,
     * for example, Component.show()/hide() in this situation
     * because hide/show tried to obtain the lock.  Therefore,
     * it's necessary to obtain the global Component lock before
     * activating or deactivating an input method.
     */
    synchronized (source.getTreeLock()) {
        synchronized (this) {
            if ("sun.awt.im.CompositionArea".equals(source.getClass().getName())) {
                // no special handling for this one
            } else if (getComponentWindow(source) instanceof InputMethodWindow) {
                // no special handling for this one either
            } else {
                if (!source.isDisplayable()) {
                    // Component is being disposed
                    return;
                }

                // Focus went to a real client component.
                // Check whether we're switching between client components
                // that share an input context. We can't do that earlier
                // than here because we don't want to end composition
                // until we really know we're switching to a different component
                if (inputMethod != null) {
                    if (currentClientComponent != null && currentClientComponent != source) {
                        if (!isInputMethodActive) {
                            activateInputMethod(false);
                        }
                        endComposition();
                        deactivateInputMethod(false);
                    }
                }

                currentClientComponent = source;
            }

            awtFocussedComponent = source;
            if (inputMethod instanceof InputMethodAdapter) {
                ((InputMethodAdapter) inputMethod).setAWTFocussedComponent(source);
            }

            // it's possible that the input method is still active because
            // we suppressed a deactivate cause by an input method window
            // coming up
            if (!isInputMethodActive) {
                activateInputMethod(true);
            }


            // If the client component is an active client with the below-the-spot
            // input style, then make the composition window undecorated without a title bar.
            InputMethodContext inputContext = ((InputMethodContext)this);
            if (!inputContext.isCompositionAreaVisible()) {
                  InputMethodRequests req = source.getInputMethodRequests();
                  if (req != null && inputContext.useBelowTheSpotInput()) {
                      inputContext.setCompositionAreaUndecorated(true);
                  } else {
                      inputContext.setCompositionAreaUndecorated(false);
                  }
            }
            // restores the composition area if it was set to invisible
            // when focus got lost
            if (compositionAreaHidden == true) {
                ((InputMethodContext)this).setCompositionAreaVisible(true);
                compositionAreaHidden = false;
            }
        }
    }
}
 

/**
 * Handles focus gained events for any component that's using
 * this input context.
 * These events are generated by AWT when the keyboard focus
 * moves to a component.
 * Besides actual client components, the source components
 * may also be the composition area or any component in an
 * input method window.
 * <p>
 * When handling the focus event for a client component, this
 * method checks whether the input context was previously
 * active for a different client component, and if so, calls
 * endComposition for the previous client component.
 *
 * @param source the component gaining the focus
 */
private void focusGained(Component source) {

    /*
     * NOTE: When a Container is removing its Component which
     * invokes this.removeNotify(), the Container has the global
     * Component lock. It is possible to happen that an
     * application thread is calling this.removeNotify() while an
     * AWT event queue thread is dispatching a focus event via
     * this.dispatchEvent(). If an input method uses AWT
     * components (e.g., IIIMP status window), it causes deadlock,
     * for example, Component.show()/hide() in this situation
     * because hide/show tried to obtain the lock.  Therefore,
     * it's necessary to obtain the global Component lock before
     * activating or deactivating an input method.
     */
    synchronized (source.getTreeLock()) {
        synchronized (this) {
            if ("sun.awt.im.CompositionArea".equals(source.getClass().getName())) {
                // no special handling for this one
            } else if (getComponentWindow(source) instanceof InputMethodWindow) {
                // no special handling for this one either
            } else {
                if (!source.isDisplayable()) {
                    // Component is being disposed
                    return;
                }

                // Focus went to a real client component.
                // Check whether we're switching between client components
                // that share an input context. We can't do that earlier
                // than here because we don't want to end composition
                // until we really know we're switching to a different component
                if (inputMethod != null) {
                    if (currentClientComponent != null && currentClientComponent != source) {
                        if (!isInputMethodActive) {
                            activateInputMethod(false);
                        }
                        endComposition();
                        deactivateInputMethod(false);
                    }
                }

                currentClientComponent = source;
            }

            awtFocussedComponent = source;
            if (inputMethod instanceof InputMethodAdapter) {
                ((InputMethodAdapter) inputMethod).setAWTFocussedComponent(source);
            }

            // it's possible that the input method is still active because
            // we suppressed a deactivate cause by an input method window
            // coming up
            if (!isInputMethodActive) {
                activateInputMethod(true);
            }


            // If the client component is an active client with the below-the-spot
            // input style, then make the composition window undecorated without a title bar.
            InputMethodContext inputContext = ((InputMethodContext)this);
            if (!inputContext.isCompositionAreaVisible()) {
                  InputMethodRequests req = source.getInputMethodRequests();
                  if (req != null && inputContext.useBelowTheSpotInput()) {
                      inputContext.setCompositionAreaUndecorated(true);
                  } else {
                      inputContext.setCompositionAreaUndecorated(false);
                  }
            }
            // restores the composition area if it was set to invisible
            // when focus got lost
            if (compositionAreaHidden == true) {
                ((InputMethodContext)this).setCompositionAreaVisible(true);
                compositionAreaHidden = false;
            }
        }
    }
}
 

@Override
public void addLayoutComponent(Component c, Object con) {

    synchronized (c.getTreeLock()) {

        if (con != null) {

            String s = con.toString();

            switch (s) {
                case NORTH:

                    north.add(c);

                    break;
                case SOUTH:

                    south.add(c);

                    break;
                case EAST:

                    east.add(c);

                    break;
                case WEST:

                    west.add(c);

                    break;
                case CENTER:

                    center = c;

                    break;
            }

            c.getParent().validate();

        }

    }

}
 

public void addLayoutComponent(Component comp, Object constraints) {
        synchronized (comp.getTreeLock()) {
            if (BOTTOM.equals(constraints)) {
                components.add(0, comp);
            } else if (TOP.equals(constraints)) {
                components.add(comp);
            } else {
                components.add(comp);
            }
        }
    }