git.gag.com Git - sw/motorsim/blob - gui/com/billkuker/rocketry/motorsim/visual/RememberJFrame.java

   1 package com.billkuker.rocketry.motorsim.visual;\r
   2 \r
   3 import java.awt.Rectangle;\r
   4 import java.awt.event.ComponentEvent;\r
   5 import java.awt.event.ComponentListener;\r
   6 import java.util.prefs.Preferences;\r
   7 \r
   8 import javax.swing.JFrame;\r
   9 \r
  10 public class RememberJFrame extends JFrame {\r
  11         private static final long serialVersionUID = 1L;\r
  12 \r
  13 \r
  14         public RememberJFrame(int width, int height){\r
  15                 setSize(width, height);\r
  16                 restore();\r
  17                 addComponentListener(new ComponentListener() {\r
  18                         @Override\r
  19                         public void componentResized(ComponentEvent arg0) {\r
  20                                 positionChanged();\r
  21                         }\r
  22                         @Override\r
  23                         public void componentMoved(ComponentEvent arg0) {\r
  24                                 positionChanged();\r
  25                         }\r
  26                         @Override\r
  27                         public void componentHidden(ComponentEvent arg0) {}\r
  28                         @Override\r
  29                         public void componentShown(ComponentEvent arg0) {}\r
  30                 });\r
  31         }\r
  32         \r
  33         protected String getPositionKey(){\r
  34                 return this.getClass().getName();\r
  35         }\r
  36         \r
  37         private void positionChanged(){\r
  38                 Rectangle r = getBounds();\r
  39                 Preferences prefs = Preferences.userNodeForPackage(this.getClass());\r
  40                 boolean max = (getExtendedState() & JFrame.MAXIMIZED_BOTH)!=0;\r
  41                 if ( !max ){\r
  42                         prefs.putInt(getPositionKey() + ".w", r.width);\r
  43                         prefs.putInt(getPositionKey() + ".h", r.height);\r
  44                         prefs.putInt(getPositionKey() + ".x", r.x);\r
  45                         prefs.putInt(getPositionKey() + ".y", r.y);\r
  46                 }\r
  47                 prefs.putInt("m", max?1:0);\r
  48         }\r
  49         \r
  50         private void restore(){\r
  51                 Preferences prefs = Preferences.userNodeForPackage(this.getClass());\r
  52                 Rectangle r = new Rectangle(\r
  53                                         prefs.getInt(getPositionKey() + ".x", 0),\r
  54                                         prefs.getInt(getPositionKey() + ".y", 0),\r
  55                                         prefs.getInt(getPositionKey() + ".w", getSize().width),\r
  56                                         prefs.getInt(getPositionKey() + ".h", getSize().height)\r
  57                                         );\r
  58                 this.setSize(r.width, r.height);\r
  59                 setLocation(r.x, r.y);\r
  60                 \r
  61                 if ( prefs.getInt("m", 0) == 1 )\r
  62                         setExtendedState( getExtendedState()|JFrame.MAXIMIZED_BOTH );\r
  63         }\r
  64 \r
  65         \r
  66         @SuppressWarnings("deprecation")\r
  67         public static void main(String[] args){\r
  68                 RememberJFrame f = new RememberJFrame(300, 300);\r
  69                 f.setDefaultCloseOperation(EXIT_ON_CLOSE);\r
  70                 f.show();\r
  71         }\r
  72 }\r