oyoahapaintmenu.java

java 开源,Swing外观：JGoodies look & feel. ... JGoodies look&feels让你的Swing 应用程序与applets看起来更漂亮.

/* ====================================================================
 * Copyright (c) 2001-2003 OYOAHA. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. The names "OYOAHA" must not be used to endorse or promote products 
 *    derived from this software without prior written permission. 
 *    For written permission, please contact [e-mail].
 *
 * 3. Products derived from this software may not be called "OYOAHA",
 *    nor may "OYOAHA" appear in their name, without prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL OYOAHA OR ITS CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.oyoaha.swing.plaf.oyoaha.ui;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.View;
import javax.swing.plaf.basic.*;

import com.oyoaha.swing.plaf.oyoaha.*;

public class OyoahaPaintMenu
{
  protected static Rectangle zeroRect = new Rectangle(0,0,0,0);
  protected static Rectangle iconRect = new Rectangle();
  protected static Rectangle textRect = new Rectangle();
  protected static Rectangle acceleratorRect = new Rectangle();
  protected static Rectangle checkIconRect = new Rectangle();
  protected static Rectangle arrowIconRect = new Rectangle();
  protected static Rectangle viewRect = new Rectangle(Short.MAX_VALUE, Short.MAX_VALUE);
  protected static Rectangle r = new Rectangle();

  private static OyoahaPaintMenu paintMenu;

  public final static OyoahaPaintMenu getOyoahaPaintMenu()
  {
    if(paintMenu==null)
    {
      paintMenu = new OyoahaPaintMenu();
    }

    return paintMenu;
  }

  protected void resetRects()
  {
    iconRect.setBounds(zeroRect);
    textRect.setBounds(zeroRect);
    acceleratorRect.setBounds(zeroRect);
    checkIconRect.setBounds(zeroRect);
    arrowIconRect.setBounds(zeroRect);
    viewRect.setBounds(0,0,Short.MAX_VALUE, Short.MAX_VALUE);
    r.setBounds(zeroRect);
  }

  public Dimension getPreferredMenuItemSize(JComponent c, Icon checkIcon, Icon arrowIcon,int defaultTextIconGap, String acceleratorDelimiter, Font acceleratorFont)
  {
    JMenuItem b = (JMenuItem)c;
    Icon icon = (Icon) b.getIcon();
    String text = b.getText();
    KeyStroke accelerator =  b.getAccelerator();
    String acceleratorText = "";

    if(accelerator != null)
    {
      int modifiers = accelerator.getModifiers();

      if(modifiers > 0)
      {
        acceleratorText = KeyEvent.getKeyModifiersText(modifiers);
        //acceleratorText += "-";
        acceleratorText += acceleratorDelimiter;
      }

      acceleratorText += KeyEvent.getKeyText(accelerator.getKeyCode());
    }

    Font font = b.getFont();
    FontMetrics fm = b.getToolkit().getFontMetrics(font);
    FontMetrics fmAccel = b.getToolkit().getFontMetrics(acceleratorFont);

    resetRects();

    layoutMenuItem(
      (JMenuItem)c, fm, text, fmAccel, acceleratorText, icon, checkIcon, arrowIcon,
      b.getVerticalAlignment(), b.getHorizontalAlignment(),
      b.getVerticalTextPosition(), b.getHorizontalTextPosition(),
      viewRect, iconRect, textRect, acceleratorRect, checkIconRect, arrowIconRect,
      text == null ? 0 : defaultTextIconGap,
      defaultTextIconGap
      );

    // find the union of the icon and text rects
    r.setBounds(textRect);
    r = SwingUtilities.computeUnion(iconRect.x, iconRect.y, iconRect.width, iconRect.height, r);

    // Add in the accelerator
    boolean acceleratorTextIsEmpty = (acceleratorText == null) || acceleratorText.equals("");

    if(!acceleratorTextIsEmpty)
    {
      r.width += acceleratorRect.width;
      r.width += 7*defaultTextIconGap;
    }

    if(useCheckAndArrow((JMenuItem)c))
    {
      // Add in the checkIcon
      r.width += checkIconRect.width;
      r.width += defaultTextIconGap;

      // Add in the arrowIcon
      r.width += defaultTextIconGap;
      r.width += arrowIconRect.width;
    }

    r.width += 2*defaultTextIconGap;

    Insets insets = b.getInsets();
    if(insets != null)
    {
      r.width += insets.left + insets.right;
      r.height += insets.top + insets.bottom;
    }

    // if the width is even, bump it up one. This is critical
    // for the focus dash line to draw properly
    if(r.width%2 == 0)
    {
      r.width++;
    }

    // if the height is even, bump it up one. This is critical
    // for the text to center properly
    if(r.height%2 == 0)
    {
      r.height++;
    }

    return r.getSize();
  }

  protected void drawText(Graphics g, JMenuItem b, ButtonModel model, FontMetrics fm, String text, Color foreground)
  {
    if(text != null)
    {
      //View v = (View)b.getClientProperty(BasicHTML.propertyKey);
      View v = (View)b.getClientProperty("html");

      if (v != null)
      {
        v.paint(g, textRect);
      }
      else
      {
        if(!model.isEnabled())
        {
          //paint the text disabled

          if(UIManager.get("MenuItem.disabledForeground") instanceof Color)
          {
            g.setColor(UIManager.getColor("MenuItem.disabledForeground"));
            BasicGraphicsUtils.drawString(g,text,model.getMnemonic(), textRect.x, textRect.y + fm.getAscent());
          }
          else
          {
            g.setColor(b.getBackground().brighter());
            BasicGraphicsUtils.drawString(g,text,model.getMnemonic(), textRect.x, textRect.y + fm.getAscent());
            g.setColor(b.getBackground().darker());
            BasicGraphicsUtils.drawString(g,text,model.getMnemonic(), textRect.x - 1, textRect.y + fm.getAscent() - 1);
          }
        }
        else
        { //paint the text normally
          if (model.isArmed()|| (b instanceof JMenu && model.isSelected()))
          {
            g.setColor(foreground);
          }
          else
          {
            g.setColor(b.getForeground());
          }

          BasicGraphicsUtils.drawString(g,text, model.getMnemonic(), textRect.x, textRect.y + fm.getAscent());
        }
      }
    }
  }

  public void paintMenuItem(Graphics g, JComponent c, Icon checkIcon, Icon arrowIcon, Color background, Color foreground, int defaultTextIconGap, String acceleratorDelimiter, Font acceleratorFont, Color disabledForeground, Color acceleratorForeground, Color acceleratorSelectionForeground)
  {
    JMenuItem b = (JMenuItem) c;
    JMenuItem menuItem = (JMenuItem) c;
    ButtonModel model = b.getModel();

    //   Dimension size = b.getSize();
    int menuWidth = b.getWidth();
    int menuHeight = b.getHeight();
    Insets i = c.getInsets();

    resetRects();

    viewRect.setBounds( 0, 0, menuWidth, menuHeight );

    viewRect.x += i.left;
    viewRect.y += i.top;
    viewRect.width -= (i.right + viewRect.x);
    viewRect.height -= (i.bottom + viewRect.y);

    Font holdf = g.getFont();
    Font f = c.getFont();
    g.setFont( f );
    FontMetrics fm = g.getFontMetrics( f );
    FontMetrics fmAccel = g.getFontMetrics( acceleratorFont );

    Color holdc = g.getColor();

    // get Accelerator text
    KeyStroke accelerator =  b.getAccelerator();
    String acceleratorText = "";

    if (accelerator != null)
    {
      int modifiers = accelerator.getModifiers();
      if (modifiers > 0)
      {
        acceleratorText = KeyEvent.getKeyModifiersText(modifiers);
        //acceleratorText += "-";
        acceleratorText += acceleratorDelimiter;
      }

      acceleratorText += KeyEvent.getKeyText(accelerator.getKeyCode());
    }

    // layout the text and icon
    String text = layoutMenuItem(