Java做的优化大师 （源码）

import java.awt.Component; import java.awt.Cursor; import java.awt.Dimension; import java.awt.Font; import java.awt.Frame; import java.awt.Image; import java.awt.Point; import java.awt.Toolkit; import java.awt.Window; import java.util.Enumeration; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JRootPane; import javax.swing.LookAndFeel; import javax.swing.SwingUtilities; import javax.swing.UIManager; import javax.swing.plaf.FontUIResource; /** * 提供对AWT,Swing有用的静态方法 * * @author <a href="http:\\blog.csdn.net\dyhml">VirusCamp</a> */ public class SwingUtil { /** * 由此类中方法使用的默认 java.awt.Toolkit */ public static final Toolkit toolkit = Toolkit.getDefaultToolkit(); /** * 将window全屏化,对Window,Frame,Dialog,JWindow,JFrame,JDialog有效 * @param window 全屏化的window * @see Window,Frame,Dialog,JWindow,JFrame,JDialog */ public static void setSizeFullOfScreen(Window window) { Dimension screenSize = toolkit.getScreenSize(); window.setBounds(0, 0, screenSize.width, screenSize.height); } /** * 将window设置在屏幕中间,对Window,Frame,Dialog,JWindow,JFrame,JDialog有效 * @param window 设置在屏幕中间的window * @see Window,Frame,Dialog,JWindow,JFrame,JDialog */ public static void setToScreenCenter(Window window) { Dimension screenSize = toolkit.getScreenSize(); Dimension windowSize = window.getSize(); if (windowSize.height > screenSize.height) windowSize.height = screenSize.height; if (windowSize.width > screenSize.width) windowSize.width = screenSize.width; window.setLocation((screenSize.width - windowSize.width) / 2, (screenSize.height - windowSize.height) / 2); } /** * 设置全局字体 * @param font 全局字体 */ public static void initGlobalFontSetting(Font font) { FontUIResource fontRes = new FontUIResource(font); for (Enumeration keys = UIManager.getDefaults().keys(); keys .hasMoreElements();) { Object key = keys.nextElement(); Object value = UIManager.get(key); if (value instanceof FontUIResource) UIManager.put(key, fontRes); } } /** * 在Component上设置光标(Cursor) * @param c 在此Component上设置光标(Cursor) * @param image 设置的光标(Cursor)图案 */ public static void setCursor(Component c, Image image) { Cursor cursor = toolkit .createCustomCursor(image, new Point(0, 0), null); c.setCursor(cursor); } /** * 设置全局LookAndFeel,此后建立的Swing部件使用此LookAndFeel * @param lafstr 设置的LookAndFeel * @return 0:设置成功,1:设置失败 */ public static int setGlobalLookAndFeel(String lafstr) { try { UIManager.setLookAndFeel(lafstr); return 0; } catch (Exception e) { return 1; } } /** * 此后建立的JFrame,JDialog是否使用LookAndFeel的窗口装饰(标题栏,边框等) */ private static boolean isUndecorated=false; /** * 返回此后建立的JFrame,JDialog是否使用LookAndFeel的窗口装饰(标题栏,边框等) * @return 此后建立的JFrame,JDialog是否使用LookAndFeel的窗口装饰(标题栏,边框等) */ public static boolean isUndecorated() { return isUndecorated; } /** * 设置此后建立的JFrame,JDialog是否使用LookAndFeel的窗口装饰(标题栏,边框等) * @param 是否此后建立的JFrame,JDialog使用LookAndFeel的窗口装饰(标题栏,边框等) */ public static void setUndecorated(boolean undecorated) { LookAndFeel laf = UIManager.getLookAndFeel(); SwingUtil.isUndecorated = undecorated; JFrame.setDefaultLookAndFeelDecorated(undecorated && laf.getSupportsWindowDecorations()); JDialog.setDefaultLookAndFeelDecorated(undecorated && laf.getSupportsWindowDecorations()); } /** * 设置JFrame是否使用LookAndFeel的窗口装饰(标题栏,边框等) * @param 是否使用LookAndFeel的窗口装饰(标题栏,边框等) */ public static void setUndecorated(JFrame frame,boolean undecorated){ if(frame.isDisplayable()) frame.dispose(); frame.setUndecorated(undecorated&&UIManager.getLookAndFeel().getSupportsWindowDecorations()); JRootPane jRootPane=frame.getRootPane(); jRootPane.setWindowDecorationStyle(jRootPane.getWindowDecorationStyle()); if(frame.isDisplayable()) frame.show(); } /** * 设置JDialog是否使用LookAndFeel的窗口装饰(标题栏,边框等) * @param 是否使用LookAndFeel的窗口装饰(标题栏,边框等) */ public static void setUndecorated(JDialog dialog,boolean undecorated){ if(dialog.isDisplayable()) dialog.dispose(); dialog.setUndecorated(undecorated&&UIManager.getLookAndFeel().getSupportsWindowDecorations()); JRootPane jRootPane=dialog.getRootPane(); jRootPane.setWindowDecorationStyle(jRootPane.getWindowDecorationStyle()); if(dialog.isDisplayable()) dialog.show(); } /** * 更新本程序建立的所有JFrame的LookAndFeel */ public static void updateUI(){ Frame[] frames=Frame.getFrames(); for(int i=0;i<frames.length;i++) updateUI(frames[i]); } /** * 更新Component的LookAndFeel * @param target 操作对象 */ public static void updateUI(Component target){ if(target instanceof JFrame) updateUI((JFrame)target,isUndecorated); if(target instanceof JDialog) updateUI((JDialog)target,isUndecorated); SwingUtilities.updateComponentTreeUI(target); } /** * 更新JFrame的LookAndFeel,改变JFrame的边框,标题 * @param frame 操作对象 * @param undecorated 是否使用LookAndFeel的窗口装饰(标题栏,边框等) */ public static void updateUI(JFrame frame,boolean undecorated){ setUndecorated(frame,undecorated); SwingUtilities.updateComponentTreeUI(frame); } /** * 更新JDialog的LookAndFeel,改变JDialog的边框,标题 * @param dialog 操作对象 * @param undecorated 是否使用LookAndFeel的窗口装饰(标题栏,边框等) */ public static void updateUI(JDialog dialog,boolean undecorated){ setUndecorated(dialog,undecorated); SwingUtilities.updateComponentTreeUI(dialog); } }