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1 package snow.utils.gui;
2
3 import java.awt.*;
4 import java.awt.event.*;
5 import javax.swing.*;
6 import javax.swing.event.*;
7 import javax.swing.border.*;
8 import java.util.*;
9
10
13 public class GridLayout3 extends GridBagLayout
14 {
15 int cols;
16 JPanel target;
17 final public GridBagConstraints constr = new GridBagConstraints();
18
19 final Hashtable<Integer  , Integer > columnAligmnents = new Hashtable<Integer , Integer >();
20
21
24 public GridLayout3(int cols, JPanel target)
25 {
26 super();
27
28 this.cols = cols;
29 this.target = target;
30
31 constr.gridwidth = 1;
32 constr.anchor = GridBagConstraints.WEST;
33 constr.insets = new Insets(1,5,1,1);
34
35 target.setLayout(this);
36
37 }
39
42 public void setColumnAlignment(int col, int alignment)
43 {
44 columnAligmnents.put(new Integer (col), new Integer (alignment));
45 }
46
47 private int actualCol = 0;
49 private double[] weights = null;
50
51
53 public void setColumnWeights(double[] w)
54 {
55 this.weights = w;
56 }
57
58 public JLabel add(String a)
59 {
60 JLabel jl = new JLabel(a);
61 jl.setOpaque(false);
62 add(jl, false);
63 return jl;
64 }
65
66
68 public JComponent add(JComponent comp)
69 {
70 add(comp, false);
71 return comp;
72 }
73
74
75
76 public JComponent addTitleSeparator(String title)
77 {
78 return addTitleSeparator(title, TitledBorder.DEFAULT_JUSTIFICATION);
80 }
81
82
83 public JComponent addTitleSeparator(String title, int TitledBorderjustification)
84 {
85 return addTitleSeparator(title,
87 UIManager.getColor("TitledBorder.titleColor"),
88 TitledBorderjustification, TitledBorder.DEFAULT_POSITION,
89 UIManager.getFont("Label.font").getSize(), 0);
90 }
91
92
97 public JComponent addTitleSeparator(String title, Color lineColor,
98 int TitledBorderjustification, int TitledBorderposition, int spaceAbove, int spaceBelow)
99 {
100 constr.gridwidth = constr.REMAINDER;
101 constr.fill = constr.HORIZONTAL;
102 JPanel pan = new JPanel(new BorderLayout(0,0));
103 pan.setBorder(
104 BorderFactory.createCompoundBorder(
105 BorderFactory.createEmptyBorder(spaceAbove, 0, spaceBelow, 0),
106 BorderFactory.createTitledBorder(
107 BorderFactory.createMatteBorder(1,0,0,0, lineColor),
108 title,
109 TitledBorderjustification,
110 TitledBorderposition)));
111
112 this.setConstraints(pan, constr);
113 target.add(pan);
114 actualCol = 0;
115 return pan;
116 }
117
118 public JComponent addSeparator()
119 {
120 constr.gridwidth = constr.REMAINDER;
121 constr.fill = constr.HORIZONTAL;
122 JPanel pan = new JPanel(new BorderLayout(0,0));
123 pan.setBorder(
124 BorderFactory.createEmptyBorder(10, 0, 0, 0)
125 );
126 this.setConstraints(pan, constr);
127 target.add(pan);
128 actualCol = 0;
129 return pan;
130 }
131
132 public JComponent add(JComponent comp, boolean fillHorizontally)
133 {
134 constr.fill = (fillHorizontally? constr.HORIZONTAL : constr.NONE);
135
136 if(actualCol%cols==cols-1)
137 {
138 constr.gridwidth = constr.REMAINDER;
140 }
141 else if(enforceLineBreakAfter)
142 {
143 constr.gridwidth = constr.REMAINDER;
144 }
145 else
146 {
147 constr.gridwidth = 1;
149 }
150
151
152 if(this.columnAligmnents.containsKey(actualCol))
153 {
154 constr.anchor = this.columnAligmnents.get(actualCol);
155 }
156 else
157 {
158 constr.anchor = constr.WEST;
160 }
161
162
163 if(weights!=null && actualCol<weights.length)
164 {
165 constr.weightx = weights[actualCol];
166 }
167 else
168 {
169 if(actualCol==0)
171 {
172 constr.weightx = 0;
173 }
174 else
175 {
176 constr.weightx = 1000;
177 }
178 }
179
180
181 this.setConstraints(comp, constr);
182 target.add(comp);
183
184 actualCol++;
185 if(actualCol == cols)
186 {
187 actualCol = 0;
188 }
189
190 if(enforceLineBreakAfter)
192 {
193 enforceLineBreakAfter = false;
195 actualCol = 0;
196 }
197 return comp;
198
199 }
200
201 boolean enforceLineBreakAfter = false;
202
203
205 public void insertLineBreakAfterNextComponent()
206 {
207 enforceLineBreakAfter = true;
208
211 }
212
213
214
217 public static void main( String [] arguments )
218 {
219 test1();
220 }
221
222
223 public static void test1()
224 {
225 JPanel panel = new JPanel();
226
227 GridLayout3 gl = new GridLayout3(3, panel);
228 gl.setColumnAlignment(0, GridBagConstraints.EAST);
229 gl.setColumnWeights(new double[]{0,1000,0});
230
231 JFrame jf = new JFrame("test");
232
233 jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
234
235 jf.setContentPane(panel);
236
237 gl.add( "a");
238 gl.add( new JTextField(8), true);
239 gl.add( new JLabel("mm"), false);
240
241 gl.add( "b");
242 gl.add( new JTextField(6), true);
243 gl.add( new JLabel("cm"), false);
244
245 gl.addTitleSeparator("Hello");
246
247 gl.add( "Hello");
248 gl.add( new JTextField(), true);
249 gl.add( new JLabel("km"), false);
250
251 gl.addTitleSeparator("Hello", Color.yellow, TitledBorder.CENTER, TitledBorder.ABOVE_TOP, 100, 50);
252
253 jf.pack();
254 jf.setLocationRelativeTo(null);
255 jf.setVisible(true);
256
257 }
259
260 public static void test2()
261 {
262 JFrame frame = new JFrame("GridLayout3 line break test");
263 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
264
265 JPanel content = new JPanel();
266 frame.getContentPane().add(content, BorderLayout.CENTER);
267 GridLayout3 gl3 = new GridLayout3(5,content);
268
269 for(int i=0; i<20; i++)
270 {
271 JButton jb = new JButton(getRandomString());
272
273 if(i==2)
274 {
275 gl3.insertLineBreakAfterNextComponent();
276 jb.setBackground(Color.red);
277 }
278
279 gl3.add(jb);
280
281 }
282
283 frame.pack();
285 frame.setLocationRelativeTo(null);
286 frame.setVisible(true);
287 }
288
289 public static String getRandomString()
290 {
291 int len = (int) (Math.random()*30) + 1;
292 StringBuffer sb = new StringBuffer ();
293 for(int i=0; i<len; i++)
294 {
295 sb.append(""+(char)('a'+i));
296 }
297 return sb.toString();
298 }
299 } |
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