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GridBagLayout HELP

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Join Date: Apr 2005
Posts: 22
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GridBagLayout HELP

 
0
  #1
Nov 6th, 2005
Is there something about adding a JList to GridBagLayout that I am missing. I want to place a JList between a JLabel and a JTextArea. No matter what I do the list seems to stay in column 1.

I am only using GridBagLayout in the west pane(wP) I have tried messing with the weights and I am stumped. I must be missing something!!!

I just want everything in column 0


First code block is the layout. Second is the entire project so far.

Java Syntax (Toggle Plain Text) 
  1.  
  2. Project6()
  3. 	{
  4. 		super("James W Project6");
  5. 		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  6.  
  7. 		nP = new JPanel();
  8. 		nP.setLayout(new FlowLayout());
  9. 		nP.setBackground(new Color(85,107,47));
  10. 		npLbl = new JLabel("South Park Photo Album");
  11. 		npLbl.setFont(fifty);
  12. 		nP.add(npLbl);
  13. 		add(nP, BorderLayout.NORTH);
  14.  
  15. 		sP = new JPanel();
  16. 		sP.setLayout(new GridLayout(1,2));
  17. 		sP.setBackground(new Color(85,107,47));
  18. 		spLbl = new JLabel("Select Font Size");
  19. 		spLbl.setFont(thirty);
  20. 		spLbl.setHorizontalTextPosition(SwingConstants.LEFT);
  21. 		sP.add(spLbl);
  22. 		jsl.setMajorTickSpacing(2);
  23. 		jsl.setPaintTicks(true);
  24. 		jsl.setPaintLabels(true);
  25. 		jsl.addChangeListener(this);
  26. 		sP.add(jsl);
  27. 		add(sP, BorderLayout.SOUTH);
  28.  
  29. // Problem is in here
  30.  
  31. 		GridBagLayout gridbag = new GridBagLayout();
  32. 		GridBagConstraints constraints = new GridBagConstraints();
  33. 		constraints.fill = GridBagConstraints.BOTH;
  34. 		wP = new JPanel();
  35. 		wP.setLayout(gridbag);
  36. 		wP.setBackground(new Color(189,183,107));
  37.  
  38. 		wpLbl = new JLabel("Sayings");
  39. 		wpLbl.setFont(twenty);
  40. 		constraints.ipady = 50;
  41. 		constraints.weighty = 0.3;
  42. 		constraints.gridx = 0;
  43. 		constraints.gridy = 0;
  44. 		constraints.anchor = GridBagConstraints.FIRST_LINE_START;
  45. 		gridbag.setConstraints(wpLbl, constraints);
  46. 		wP.add(wpLbl);
  47.  
  48. 		sayList = new JList(sayings);
  49. 		sayList.setVisibleRowCount(3);	
  50. 		sayList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
  51. 		constraints.weightx = 0.0;
  52. 		constraints.weighty = 0.0;
  53. 		constraints.gridx = 0;
  54. 		constraints.gridy = 1;
  55. 		constraints.anchor = GridBagConstraints.LINE_START;
  56. 		gridbag.setConstraints(sayList, constraints);
  57. 		wP.add(new JScrollPane(sayList));
  58. 		sayList.addListSelectionListener(this);
  59.  
  60.  
  61. 		cart =  new JTextArea(11,12);
  62. 		cart.setBackground(new Color(189,183,107));
  63. 		cart.setBorder(BorderFactory.createTitledBorder
  64. 						(BorderFactory.createLineBorder(Color.black),"Cart:"));
  65. 		cart.setEditable(false);
  66. 		cart.setLineWrap(true);
  67. 		constraints.gridx = 0;
  68. 		constraints.gridy = 2;
  69. 		//constraints.anchor = GridBagConstraints.PAGE_END;
  70. 		gridbag.setConstraints(cart, constraints);
  71. 		wP.add(cart);
  72. 		add(wP, BorderLayout.WEST);
  73.  
  74.  
  75.  
  76.  
  77.  
  78.  
  79. 		eP = new JPanel();
  80. 		eP.setLayout(new GridLayout(12,1));
  81. 		eP.setBackground(new Color(189,183,107));
  82. 		lbl1 = new JLabel("Available");
  83. 		lbl1.setFont(twenty);
  84. 		lbl2 = new JLabel("Photo Sizes");
  85. 		lbl2.setFont(twenty);
  86. 		lbl3 = new JLabel("Check Selections");
  87. 		lbl3.setFont(twenty);
  88. 		cb3 = new JCheckBox("3X5     $0.50 each");
  89. 		cb5 = new JCheckBox("5X7     $1.00 each");
  90. 		cb6 = new JCheckBox("6X8     $1.50 each");
  91. 		cb8 = new JCheckBox("8X10    $3.00 each");
  92. 		cb16 = new JCheckBox("16X20   $5.00 each");
  93. 		completeBtn = new JButton("Complete Order");
  94. 		clrBtn = new JButton("Clear");
  95. 		exitBtn = new JButton("Exit");
  96. 		eP.add(lbl1);
  97. 		eP.add(lbl2);
  98. 		eP.add(lbl3);
  99. 		eP.add(cb3);
  100. 		eP.add(cb5);
  101. 		eP.add(cb6);
  102. 		eP.add(cb8);
  103. 		eP.add(cb16);
  104. 		eP.add(completeBtn);
  105. 		eP.add(clrBtn);
  106. 		eP.add(exitBtn);
  107. 		cb3.addItemListener(this);
  108. 		cb5.addItemListener(this);
  109. 		cb6.addItemListener(this);
  110. 		cb8.addItemListener(this);
  111. 		cb16.addItemListener(this);
  112. 		completeBtn.addActionListener(this);
  113. 		clrBtn.addActionListener(this);
  114. 		exitBtn.addActionListener(this);
  115. 		add(eP, BorderLayout.EAST);
  116.  
  117.  
  118. /*   commented out for posting   uses icons   
  119.  
  120. 		cP = new JPanel();
  121. 		cP.setLayout(new GridLayout(2,2));
  122. 		cP.setBackground(new Color(240,230,140));
  123. 		cpLbl1 = new JLabel("Photo Selection");
  124. 		cpLbl1.setFont(twenty);
  125. 		cP.add(cpLbl1);
  126. 		//picList = new JList(icons);
  127. 		//picList.setVisibleRowCount(2);
  128. 		//picList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
  129. 		//cP.add(new JScrollPane(picList));
  130. 		//picList.addListSelectionListener(this);
  131. 		colorBtn = new JButton("Click to select a matte color and preview");
  132. 		cP.add(colorBtn);
  133. 		colorBtn.addActionListener(this);
  134. 		cP.add(cpLbl2);
  135. 		add(cP, BorderLayout.CENTER);
  136. */
  137.  
  138. 	}
Java Syntax (Toggle Plain Text) 
  1. import java.awt.*;
  2. import javax.swing.*;
  3. import javax.swing.event.*;
  4. import java.awt.event.*;
  5.  
  6. public class Project6 extends JFrame implements MouseListener, ChangeListener,
  7. 												ListSelectionListener,
  8. 												ItemListener, ActionListener
  9. {
  10. 	private Container c = getContentPane();
  11. 	private JPanel nP, sP, cP, eP, wP;
  12. 	private JLabel npLbl,spLbl,wpLbl,epLbl,cpLbl1, lbl1,lbl2,lbl3,lbl4 ,lbl5;
  13. 	private JLabel cpLbl2 = new JLabel("hey");
  14. 	private JLabel wpLbl1 = new JLabel("hey");
  15. 	private JSlider jsl = new JSlider(SwingConstants.HORIZONTAL,8,30,10);
  16. 	private JButton colorBtn,clrBtn, completeBtn, exitBtn;
  17. 	private JList sayList, picList;
  18. 	private JTextArea cart;
  19. 	private JCheckBox cb3, cb5, cb6, cb8, cb16;
  20. 	private Font fifty = new Font("Lucida Sans", Font.BOLD, 50);
  21. 	private Font thirty = new Font("Serif", Font.BOLD, 30);
  22. 	private Font twenty = new Font("Serif", Font.BOLD, 20);
  23. 	private Font six = new Font("Serif", Font.PLAIN, 6);
  24. 	private boolean sayPicked = false;
  25. 	private boolean sizePicked = false;
  26. 	private boolean mattePicked = false;
  27. 	private boolean imagePicked = false;
  28.  
  29. 	private int size = 10;
  30. 	private int[] indices;
  31. 	private float total;
  32. 	private int qtyCb3, qtyCb5, qtyCb6, qtyCb8, qtyCb16;
  33.  
  34.  
  35. 	private String[] sayings = {"Honor Student","Varsity Football","Varsity Soccer",
  36. 								"Varsity Chearleading","Most likely to succeed",
  37. 								"Class Officer","Debate Team","Robotics Club",
  38. 								"School paper", "Loser"};
  39.  
  40. /* commented out for posting  in forum      incase someone wants to copy and paste to run it
  41.  
  42. 	private String[] pics = {"1a.gif","2a.gif","3a.gif","4a.gif","50a.gif",
  43. 							  "62a.gif","98a.gif","64a.gif","56a.gif","7a.gif",
  44. 							  "57a.gif","49a.gif"};
  45.  
  46. 	private String[] picNames = {"Eric","Kyle","Stan","Kenny","Starvin'Marvin","Timmy","Jimmy",
  47. 								 "Tweek","Phillip","Mr. Garrison","Terrance","Mr. Mackey"};
  48.  
  49. 	private Icon icons[] = {new ImageIcon(pics[0]),
  50. 							new ImageIcon(pics[1]),
  51. 							new ImageIcon(pics[2]),
  52. 							new ImageIcon(pics[3]),
  53. 							new ImageIcon(pics[4]),
  54. 							new ImageIcon(pics[5]),
  55. 							new ImageIcon(pics[6]),
  56. 							new ImageIcon(pics[7]),
  57. 							new ImageIcon(pics[8]),
  58. 							new ImageIcon(pics[9]),
  59. 							new ImageIcon(pics[10]),
  60. 							new ImageIcon(pics[11])};
  61. */
  62.  
  63.  
  64.  
  65.  
  66.  
  67. 	public void stateChanged(ChangeEvent ce)// Slider
  68. 	{
  69. 		size = jsl.getValue();
  70. 		System.out.println("Size is now set to " + size);
  71.  
  72. 	}
  73. 	public void valueChanged(ListSelectionEvent lse)//List
  74. 	{
  75. 		if(lse.getSource() == sayList)
  76. 		{
  77. 			indices = sayList.getSelectedIndices();
  78. 			for(int i = 0; i<indices.length;i++)
  79. 			{
  80. 				System.out.println(sayings[indices[i]] + "\n\n");
  81. 			}
  82. 		}
  83. 		if(lse.getSource() == picList)
  84. 		{
  85. 			imagePicked = true;
  86. 			//System.out.println(picNames[picList.getSelectedIndex()]+ "     "+imagePicked);
  87. 		}
  88.  
  89. 	}
  90. 	public void itemStateChanged(ItemEvent ie)//Checkboxes
  91. 	{
  92. 		if(ie.getSource() == cb3)
  93. 		{
  94. 			qtyCb3 = Integer.parseInt(JOptionPane.showInputDialog(
  95. 										"How many 3X5 pictures?"));
  96.  
  97. 		}
  98.  
  99. 	}
  100. 	public void actionPerformed(ActionEvent ae)//Buttons
  101. 	{
  102. 		if(ae.getSource() == colorBtn)
  103. 		{
  104.  
  105. 		}
  106. 		if(ae.getSource() == clrBtn)
  107. 		{
  108. 			clearAll();
  109. 		}
  110. 		if(ae.getSource() == exitBtn)
  111. 		{
  112. 			System.exit(0);
  113. 		}
  114. 		if(ae.getSource() == completeBtn)
  115. 		{
  116.  
  117. 		}
  118.  
  119. 	}
  120. 	public void setSize()
  121. 	{
  122.  
  123. 	}
  124. 	public void clearAll()
  125. 	{
  126. 		sayPicked = false;
  127. 		sizePicked = false;
  128. 		mattePicked = false;
  129. 		imagePicked = false;
  130. 		cb3.setSelected(false);
  131. 		cb5.setSelected(false);
  132. 		cb6.setSelected(false);
  133. 		cb8.setSelected(false);
  134. 		cb16.setSelected(false);
  135. 		jsl.setValue(10);
  136. 		sayList.clearSelection();
  137. 	}
  138.  
  139.  
  140. 	public static void main(String[] args)
  141. 	{
  142. 		Project6 a = new Project6();
  143. 		a.pack();
  144. 	    a.setVisible(true);
  145. 	}
  146.  
  147. 	Project6()
  148. 	{
  149. 		super("James W Project6");
  150. 		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  151.  
  152. 		nP = new JPanel();
  153. 		nP.setLayout(new FlowLayout());
  154. 		nP.setBackground(new Color(85,107,47));
  155. 		npLbl = new JLabel("South Park Photo Album");
  156. 		npLbl.setFont(fifty);
  157. 		nP.add(npLbl);
  158. 		add(nP, BorderLayout.NORTH);
  159.  
  160. 		sP = new JPanel();
  161. 		sP.setLayout(new GridLayout(1,2));
  162. 		sP.setBackground(new Color(85,107,47));
  163. 		spLbl = new JLabel("Select Font Size");
  164. 		spLbl.setFont(thirty);
  165. 		spLbl.setHorizontalTextPosition(SwingConstants.LEFT);
  166. 		sP.add(spLbl);
  167. 		jsl.setMajorTickSpacing(2);
  168. 		jsl.setPaintTicks(true);
  169. 		jsl.setPaintLabels(true);
  170. 		jsl.addChangeListener(this);
  171. 		sP.add(jsl);
  172. 		add(sP, BorderLayout.SOUTH);
  173.  
  174. // Problem is in here
  175.  
  176. 		GridBagLayout gridbag = new GridBagLayout();
  177. 		GridBagConstraints constraints = new GridBagConstraints();
  178. 		constraints.fill = GridBagConstraints.BOTH;
  179. 		wP = new JPanel();
  180. 		wP.setLayout(gridbag);
  181. 		wP.setBackground(new Color(189,183,107));
  182.  
  183. 		wpLbl = new JLabel("Sayings");
  184. 		wpLbl.setFont(twenty);
  185. 		constraints.ipady = 50;
  186. 		constraints.weighty = 0.3;
  187. 		constraints.gridx = 0;
  188. 		constraints.gridy = 0;
  189. 		constraints.anchor = GridBagConstraints.FIRST_LINE_START;
  190. 		gridbag.setConstraints(wpLbl, constraints);
  191. 		wP.add(wpLbl);
  192.  
  193. 		sayList = new JList(sayings);
  194. 		sayList.setVisibleRowCount(3);	
  195. 		sayList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
  196. 		constraints.weightx = 0.0;
  197. 		constraints.weighty = 0.0;
  198. 		constraints.gridx = 0;
  199. 		constraints.gridy = 1;
  200. 		constraints.anchor = GridBagConstraints.LINE_START;
  201. 		gridbag.setConstraints(sayList, constraints);
  202. 		wP.add(new JScrollPane(sayList));
  203. 		sayList.addListSelectionListener(this);
  204.  
  205.  
  206. 		cart =  new JTextArea(11,12);
  207. 		cart.setBackground(new Color(189,183,107));
  208. 		cart.setBorder(BorderFactory.createTitledBorder
  209. 						(BorderFactory.createLineBorder(Color.black),"Cart:"));
  210. 		cart.setEditable(false);
  211. 		cart.setLineWrap(true);
  212. 		constraints.gridx = 0;
  213. 		constraints.gridy = 2;
  214. 		//constraints.anchor = GridBagConstraints.PAGE_END;
  215. 		gridbag.setConstraints(cart, constraints);
  216. 		wP.add(cart);
  217. 		add(wP, BorderLayout.WEST);
  218.  
  219.  
  220.  
  221.  
  222.  
  223.  
  224. 		eP = new JPanel();
  225. 		eP.setLayout(new GridLayout(12,1));
  226. 		eP.setBackground(new Color(189,183,107));
  227. 		lbl1 = new JLabel("Available");
  228. 		lbl1.setFont(twenty);
  229. 		lbl2 = new JLabel("Photo Sizes");
  230. 		lbl2.setFont(twenty);
  231. 		lbl3 = new JLabel("Check Selections");
  232. 		lbl3.setFont(twenty);
  233. 		cb3 = new JCheckBox("3X5     $0.50 each");
  234. 		cb5 = new JCheckBox("5X7     $1.00 each");
  235. 		cb6 = new JCheckBox("6X8     $1.50 each");
  236. 		cb8 = new JCheckBox("8X10    $3.00 each");
  237. 		cb16 = new JCheckBox("16X20   $5.00 each");
  238. 		completeBtn = new JButton("Complete Order");
  239. 		clrBtn = new JButton("Clear");
  240. 		exitBtn = new JButton("Exit");
  241. 		eP.add(lbl1);
  242. 		eP.add(lbl2);
  243. 		eP.add(lbl3);
  244. 		eP.add(cb3);
  245. 		eP.add(cb5);
  246. 		eP.add(cb6);
  247. 		eP.add(cb8);
  248. 		eP.add(cb16);
  249. 		eP.add(completeBtn);
  250. 		eP.add(clrBtn);
  251. 		eP.add(exitBtn);
  252. 		cb3.addItemListener(this);
  253. 		cb5.addItemListener(this);
  254. 		cb6.addItemListener(this);
  255. 		cb8.addItemListener(this);
  256. 		cb16.addItemListener(this);
  257. 		completeBtn.addActionListener(this);
  258. 		clrBtn.addActionListener(this);
  259. 		exitBtn.addActionListener(this);
  260. 		add(eP, BorderLayout.EAST);
  261.  
  262.  
  263. /*   commented out for posting   uses icons   
  264.  
  265. 		cP = new JPanel();
  266. 		cP.setLayout(new GridLayout(2,2));
  267. 		cP.setBackground(new Color(240,230,140));
  268. 		cpLbl1 = new JLabel("Photo Selection");
  269. 		cpLbl1.setFont(twenty);
  270. 		cP.add(cpLbl1);
  271. 		//picList = new JList(icons);
  272. 		//picList.setVisibleRowCount(2);
  273. 		//picList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
  274. 		//cP.add(new JScrollPane(picList));
  275. 		//picList.addListSelectionListener(this);
  276. 		colorBtn = new JButton("Click to select a matte color and preview");
  277. 		cP.add(colorBtn);
  278. 		colorBtn.addActionListener(this);
  279. 		cP.add(cpLbl2);
  280. 		add(cP, BorderLayout.CENTER);
  281. */
  282.  
  283. 	}
  284. 	public void mouseReleased(MouseEvent event){}
  285. 	public void mouseClicked(MouseEvent event){}
  286. 	public void mousePressed(MouseEvent event){}
  287. 	public void mouseEntered(MouseEvent event){}
  288. 	public void mouseExited(MouseEvent event){}
  289.  
  290.  
  291. }
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Postaholic

Re: GridBagLayout HELP

 
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  #2
Nov 6th, 2005
Have you tried using gridwidth or ipadx?
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Re: GridBagLayout HELP

 
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  #3
Nov 6th, 2005
sure did everything works fine till I add the JList I can comment out the JList and use a JLabel and it works fine
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