本文介绍Swing实现MDI风格界面的基础是JInternalFrame和JDesktopPane。以及介绍Swing实现MDI的方法。

JConsole是一个根据JMX的GUI东西，用于衔接正在运转的JVM，它是一个MDI风格的Java桌面使用。Swing完成MDI风格界面的根底是JInternalFrame和JDesktopPane。以下是Swing完成MDI的办法：
  1. importjava.awt.BorderLayout; 
  2. importjava.awt.Container; 
  3. importjava.awt.Dimension; 
  4. importjava.awt.FlowLayout; 
  5. importjava.awt.Insets; 
  6. importjava.awt.event.ActionEvent; 
  7. importjava.awt.event.ActionListener; 
  8. importjava.awt.event.ComponentAdapter; 
  9. importjava.awt.event.ComponentEvent; 
  10. importjava.beans.PropertyVetoException; 
  12. importjavax.swing.JButton; 
  13. importjavax.swing.JDesktopPane; 
  14. importjavax.swing.JFrame; 
  15. importjavax.swing.JInternalFrame; 
  16. importjavax.swing.JMenuBar; 
  17. importjavax.swing.JMenuItem; 
  18. importjavax.swing.JPanel; 
  19. importjavax.swing.SwingUtilities; 
  20. importjavax.swing.plaf.basic.BasicInternalFrameUI; 
  22. /** 
  23. *MDIFrameisaframeusingJInternalFrametoimplementsMDIasWordonWindows. 
  24. * 
  25. *@authorCheng 
  26. *@version1.0.0forGPFMDItest 
  27. */ 
  28. @SuppressWarnings("serial") 
  29. publicclassMDIFrameextendsJFrame{ 
  30.  
  31. /**Thedesktoppane.*/ 
  32. finalJDesktopPanedesktopPane=newJDesktopPane(); 
  33.  
  34. /**Theoperationpanewithrestoreandclosebuttons.*/ 
  35. finalJPanelopPane=newJPanel(); 
  36.  
  37. /** 
  38. *InstantiatesanewmDIframe. 
  39. */ 
  40. publicMDIFrame(){ 
  41. setTitle("MDIFrame"); 
  42. setSize(600,550); 
  43. setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
  44.  
  45. finalJMenuBarbar=newJMenuBar(); 
  46. JMenuItemexit=newJMenuItem("Exit"); 
  47. exit.addActionListener(newActionListener(){ 
  49. @Override 
  50. publicvoidactionPerformed(ActionEvente){ 
  51. System.exit(0); 
  52. } 
  53.  
  54. }); 
  55. bar.add(exit); 
  56. //operationpanewithtwobutton,setinvisibleatfirst 
  57. opPane.setLayout(newFlowLayout(FlowLayout.TRAILING)); 
  58. JButtonrestore=newJButton("#"); 
  59. restore.setMargin(newInsets(0,0,0,0)); 
  60. restore.setPreferredSize(newDimension(15,15)); 
  61. restore.addActionListener(newActionListener(){ 
  63. @Override 
  64. publicvoidactionPerformed(ActionEvente){ 
  65. InnerFramei=(InnerFrame)desktopPane.getSelectedFrame(); 
  66. try{ 
  67. //noticethismethod,whenJInternalFramesetmaximunfalse 
  68. //thisinternalframewillbesetasoldsize 
  69. i.setMaximum(false); 
  70. }catch(PropertyVetoExceptionex){ 
  71. ex.printStackTrace(); 
  72. } 
  73. i.showNorthPanel(); 
  74. opPane.setVisible(false); 
  75. } 
  76.  
  77. }); 
  78. opPane.add(restore); 
  79. JButtonclose=newJButton("X"); 
  80. close.setMargin(newInsets(0,0,0,0)); 
  81. close.setPreferredSize(newDimension(15,15)); 
  82. close.addActionListener(newActionListener(){ 
  84. @Override 
  85. publicvoidactionPerformed(ActionEvente){ 
  86. JInternalFramei=desktopPane.getSelectedFrame(); 
  87. i.dispose(); 
  88. opPane.setVisible(false); 
  89. } 
  90.  
  91. }); 
  92. opPane.add(close); 
  93. bar.add(opPane); 
  94. opPane.setVisible(false); 
  95. setJMenuBar(bar); 
  96.  
  97. Containercontent=getContentPane(); 
  98. content.add(desktopPane,BorderLayout.CENTER); 
  99. finalJPanelctrlPane=newJPanel(); 
  100. JButtonadd=newJButton("add"); 
  101. add.addActionListener(newActionListener(){ 
  103. @Override 
  104. publicvoidactionPerformed(ActionEvente){ 
  105. InnerFrameiFrame=newInnerFrame(); 
  106. iFrame.setVisible(true); 
  107. desktopPane.add(iFrame); 
  108. } 
  109.  
  110. }); 
  111. ctrlPane.add(add); 
  112. content.add(ctrlPane,BorderLayout.SOUTH); 
  113. setVisible(true); 
  114. } 
  115.  
  116. /** 
  117. *TheClassInnerFrame. 
  118. */ 
  119. classInnerFrameextendsJInternalFrame{ 
  120.  
  121. /**Theishidden.*/ 
  122. booleanisHidden=false; 
  123.  
  124. /**Theoldui.*/ 
  125. BasicInternalFrameUIoldUi=null; 
  126.  
  127. /** 
  128. *Instantiatesanewinnerframe. 
  129. */ 
  130. publicInnerFrame(){ 
  131. oldUi=(BasicInternalFrameUI)getUI(); 
  132. setSize(200,200); 
  133. maximizable=true; 
  134. closable=true; 
  135. addComponentListener(newComponentAdapter(){ 
  136. publicvoidcomponentResized(ComponentEvente){ 
  137. InnerFrameselectedFrame=(InnerFrame)e.getSource(); 
  138. if(selectedFrame.isMaximum()){ 
  139. selectedFrame.hideNorthPanel(); 
  140. opPane.setVisible(true); 
  141. try{ 
  142. selectedFrame.setMaximum(true); 
  143. }catch(PropertyVetoExceptionex){ 
  144. ex.printStackTrace(); 
  145. } 
  146. } 
  147. } 
  148. }); 
  149. } 
  150.  
  151. /** 
  152. *Hidenorthpanel. 
  153. */ 
  154. publicvoidhideNorthPanel(){ 
  155. ((BasicInternalFrameUI)this.getUI()).setNorthPane(null); 
  156. this.putClientProperty("JInternalFrame.isPalette",Boolean.TRUE); 
  157. isHidden=true; 
  158. } 
  159.  
  160. /** 
  161. *Shownorthpanel. 
  162. */ 
  163. publicvoidshowNorthPanel(){ 
  164. this.setUI(oldUi); 
  165. this.putClientProperty("JInternalFrame.isPalette",Boolean.FALSE); 
  166. isHidden=false; 
  167. } 
  168.  
  169. /*(non-Javadoc) 
  170. *@seejavax.swing.JInternalFrame#updateUI() 
  171. */ 
  172. publicvoidupdateUI(){ 
  173. super.updateUI(); 
  174. if(isHidden){ 
  175. hideNorthPanel(); 
  176. } 
  177. } 
  178. } 
  179.  
  180. /** 
  181. *Themainmethod. 
  182. * 
  183. *@paramargsthearguments 
  184. */ 
  185. publicstaticvoidmain(String[]args){ 
  186. SwingUtilities.invokeLater(newRunnable(){ 
  188. @Override 
  189. publicvoidrun(){ 
  190. newMDIFrame(); 
  191. } 
  192.  
  193. }); 
  194. } 
  195. }

以上是Swing完成MDI的办法，期望我们有用。

浅析Swing完成MDI的办法 Swing实现MDI 第1张

【修改引荐】

  1. 浅谈不论是AWT仍是Swing形式
  2. 全面比较Swing与SWT
  3. Swing程序中调用JavaFX代码
  4. 概述Swing大多数控件
  5. 浅谈Swing中的Look&Feel
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