synthtoolbarui.java

来自「java jdk 1.4的源码」· Java 代码 · 共 1,086 行 · 第 1/3 页

	  }
	}
    }

    protected ContainerListener createToolBarContListener( )
    {
	return new ToolBarContListener( );
    }

    protected FocusListener createToolBarFocusListener( )
    {
	return new ToolBarFocusListener( );
    }

    protected PropertyChangeListener createPropertyListener()
    {
        return new PropertyListener();
    }

    protected MouseInputListener createDockingListener( ) {
	return new DockingListener(toolBar);
    }
    
    protected WindowListener createFrameListener() {
	return new FrameListener();
    }

    // The private inner classes below should be changed to protected the
    // next time API changes are allowed.
  
    private static abstract class KeyAction extends AbstractAction {
        public boolean isEnabled() { 
            return true;
        }
    };

    private static class RightAction extends KeyAction {
        public void actionPerformed(ActionEvent e) {
	    JToolBar toolBar = (JToolBar)e.getSource();
            // PENDING:
	    SynthToolBarUI ui = (SynthToolBarUI)toolBar.getUI();
            ui.navigateFocusedComp(EAST);
        }
    };
    
    private static class LeftAction extends KeyAction {
        public void actionPerformed(ActionEvent e) {
	    JToolBar toolBar = (JToolBar)e.getSource();
	    SynthToolBarUI ui = (SynthToolBarUI)toolBar.getUI();
            ui.navigateFocusedComp(WEST);
        }
    };

    private static class UpAction extends KeyAction {
        public void actionPerformed(ActionEvent e) {
	    JToolBar toolBar = (JToolBar)e.getSource();
	    SynthToolBarUI ui = (SynthToolBarUI)toolBar.getUI();
            ui.navigateFocusedComp(NORTH);
        }
    };

    private static class DownAction extends KeyAction {
        public void actionPerformed(ActionEvent e) {
	    JToolBar toolBar = (JToolBar)e.getSource();
	    SynthToolBarUI ui = (SynthToolBarUI)toolBar.getUI();
            ui.navigateFocusedComp(SOUTH);
        }
    };

    protected class FrameListener extends WindowAdapter {
	public void windowClosing(WindowEvent w) {	    
	    if (toolBar.isFloatable() == true) {
		if (dragWindow != null)
		    dragWindow.setVisible(false);
		floating = false;
		if (floatingToolBar == null)
		    floatingToolBar = createFloatingWindow(toolBar);
		if (floatingToolBar instanceof Window) ((Window)floatingToolBar).setVisible(false);
		floatingToolBar.getContentPane().remove(toolBar);
		String constraint = constraintBeforeFloating;
		int orientation = mapConstraintToOrientation(constraint);
		setOrientation(orientation);
		if (dockingSource == null)
		    dockingSource = toolBar.getParent();
		if (propertyListener != null)
		    UIManager.removePropertyChangeListener(propertyListener);
		dockingSource.add(constraint, toolBar);
		dockingSource.invalidate();
		Container dockingSourceParent = dockingSource.getParent();
		if (dockingSourceParent != null)
			dockingSourceParent.validate();
		dockingSource.repaint();
		setFloating(false,null);
	    }
	}

    } 

    protected class ToolBarContListener implements ContainerListener
    {
        public void componentAdded( ContainerEvent e )	{
	    Component c = e.getChild();

	    if ( toolBarFocusListener != null ) {
	        c.addFocusListener( toolBarFocusListener );
	    }
	}

        public void componentRemoved( ContainerEvent e ) {
	    Component c = e.getChild();

	    if ( toolBarFocusListener != null ) {
	        c.removeFocusListener( toolBarFocusListener );
	    }
	}

    } // end class ToolBarContListener

    protected class ToolBarFocusListener implements FocusListener
    {
        public void focusGained( FocusEvent e )
	{
	    Component c = e.getComponent();

	    focusedCompIndex = toolBar.getComponentIndex( c );
	}

        public void focusLost( FocusEvent e )
	{
	}

    } // end class ToolBarFocusListener

    protected class PropertyListener implements PropertyChangeListener
    {
        public void propertyChange( PropertyChangeEvent e ) {
	    String propertyName = e.getPropertyName();

            if (SynthLookAndFeel.shouldUpdateStyle(e)) {
                fetchStyle(toolBar);
            }
	    if ( propertyName.equals("lookAndFeel") ) {
	        toolBar.updateUI();
            } else if (propertyName.equals("orientation")) {
		// Search for JSeparator components and change it's orientation
		// to match the toolbar and flip it's orientation.
		Component[] components = toolBar.getComponents();
		int orientation = ((Integer)e.getNewValue()).intValue();
		JToolBar.Separator separator;

		for( int i = 0; i < components.length; ++i ) {
		    if (components[i] instanceof JToolBar.Separator) {
			separator = (JToolBar.Separator)components[i];
			separator.setOrientation(orientation);
			Dimension size = separator.getSize();
			if (size.width != size.height) {
			    // Flip the orientation.
			    Dimension newSize = new Dimension(size.height, size.width);
			    separator.setSeparatorSize(newSize);
			}
		    }
		}
	    }
	}
    }

    class SynthToolBarLayoutManager implements LayoutManager {
        public void addLayoutComponent(String name, Component comp) {}

        public void removeLayoutComponent(Component comp) {}

        public Dimension minimumLayoutSize(Container parent) {
            JToolBar tb = (JToolBar)parent;
            Dimension dim = new Dimension();
            SynthContext context = getContext(tb);

            if (tb.getOrientation() == JToolBar.HORIZONTAL) {
                dim.width = SynthIcon.getIconWidth(handleIcon, context);
                Dimension compDim;
                for (int i = 0; i < tb.getComponentCount(); i++) {
                    compDim = tb.getComponent(i).getMinimumSize();
                    dim.width += compDim.width;
                    dim.height = Math.max(dim.height, compDim.height);
                }
            } else {
                dim.height =
                    SynthIcon.getIconHeight(handleIcon, context);
                Dimension compDim;
                for (int i = 0; i < tb.getComponentCount(); i++) {
                    compDim = tb.getComponent(i).getMinimumSize();
                    dim.width = Math.max(dim.width, compDim.width);
                    dim.height += compDim.height;
                }
            }
            context.dispose();
            return dim;
        }

        public Dimension preferredLayoutSize(Container parent) {
            JToolBar tb = (JToolBar)parent;
            Dimension dim = new Dimension();
            SynthContext context = getContext(tb);

            if (tb.getOrientation() == JToolBar.HORIZONTAL) {
                dim.width = SynthIcon.getIconWidth(handleIcon, context);
                Dimension compDim;
                for (int i = 0; i < tb.getComponentCount(); i++) {
                    compDim = tb.getComponent(i).getPreferredSize();
                    dim.width += compDim.width;
                    dim.height = Math.max(dim.height, compDim.height);
                }
            } else {
                dim.height =
                    SynthIcon.getIconHeight(handleIcon, context);
                Dimension compDim;
                for (int i = 0; i < tb.getComponentCount(); i++) {
                    compDim = tb.getComponent(i).getPreferredSize();
                    dim.width = Math.max(dim.width, compDim.width);
                    dim.height += compDim.height;
                }
            }
            context.dispose();
            return dim;
        }

        public void layoutContainer(Container parent) {
            JToolBar tb = (JToolBar)parent;
            boolean ltr = tb.getComponentOrientation().isLeftToRight();
            SynthContext context = getContext(tb);
            int handleWidth = SynthIcon.getIconWidth(handleIcon, context);

            Component c;
            Dimension d;
            if (tb.getOrientation() == JToolBar.HORIZONTAL) {
                int x = ltr ? handleWidth : tb.getWidth() - handleWidth;
                for (int i = 0; i < tb.getComponentCount(); i++) {
                    c = tb.getComponent(i);
                    d = c.getPreferredSize();
                    c.setBounds(ltr ? x : x - d.width, 0, d.width, d.height);
                    x = ltr ? x + d.width : x - d.width;
                }
                contentRect.x = ltr ?
                        SynthIcon.getIconWidth(handleIcon, context) : 0;
                contentRect.y = 0;
                contentRect.width = tb.getWidth() - contentRect.x;
                contentRect.height = tb.getHeight();
            } else {
                int y = SynthIcon.getIconHeight(handleIcon, context);
                for (int i = 0; i < tb.getComponentCount(); i++) {
                    c = tb.getComponent(i);
                    d = c.getPreferredSize();
                    c.setBounds(0, y, d.width, d.height);
                    y += d.height;
                }
                contentRect.x = 0;
                contentRect.y =
                    SynthIcon.getIconHeight(handleIcon, context);
                contentRect.width = tb.getWidth();
                contentRect.height = tb.getHeight() - contentRect.y;
            }
            context.dispose();
        }
    }

    class DockingListener implements MouseInputListener {
	protected JToolBar toolBar;
	protected boolean isDragging = false;
	protected Point origin = null;

	public DockingListener(JToolBar t) {
	    this.toolBar = t;
	} 

	public void mouseClicked(MouseEvent e) {}
	public void mousePressed(MouseEvent e) { 
            if (!toolBar.isEnabled()) {
                return;
            }
	    isDragging = false;
	}
	public void mouseReleased(MouseEvent e) {
            if (!toolBar.isEnabled()) {
                return;
            }
	    if (isDragging == true) {
		Point position = e.getPoint();
		if (origin == null)
		    origin = e.getComponent().getLocationOnScreen();
		floatAt(position, origin);
	    }
	    origin = null;
	    isDragging = false;
	}
	public void mouseEntered(MouseEvent e) { }
	public void mouseExited(MouseEvent e) { }

	public void mouseDragged(MouseEvent e) {
            if (!toolBar.isEnabled()) {
                return;
            }
	    isDragging = true;
	    Point position = e.getPoint();
	    if (origin == null)
		origin = e.getComponent().getLocationOnScreen();
	    dragTo(position, origin);
	}
	public void mouseMoved(MouseEvent e) {
	}
    }

    protected class DragWindow extends Window
    {
	int orientation = toolBar.getOrientation();
	Point offset; // offset of the mouse cursor inside the DragWindow

	DragWindow(Window w) {
	    super(w);
	}

	public void setOrientation(int o) {
	    if(isShowing()) {
		if (o == this.orientation)
		    return;	    
		this.orientation = o;
		Dimension size = getSize();
		setSize(new Dimension(size.height, size.width));
		if (offset!=null) {
                    if( SynthLookAndFeel.isLeftToRight(toolBar) ) {
                        setOffset(new Point(offset.y, offset.x));
                    } else if( o == JToolBar.HORIZONTAL ) {
                        setOffset(new Point( size.height-offset.y, offset.x));
                    } else {
                        setOffset(new Point(offset.y, size.width-offset.x));
                    }
                }
		repaint();
	    }
	}

	public Point getOffset() {
	    return offset;
	}

	public void setOffset(Point p) {
	    this.offset = p;
	}
	
	public void paint(Graphics g) {
            SynthContext context = getContext(toolBar,
                                              Region.TOOL_BAR_DRAG_WINDOW);

            SynthLookAndFeel.updateSubregion(context, g, new Rectangle(
                                             0, 0, getWidth(), getHeight()));
            context.dispose();
	}

	public Insets getInsets() {
	    return new Insets(1,1,1,1);
	}
    }
}