|
1
74
75
76 package swingwtx.swing;
77
78 import org.eclipse.swt.SWT;
79 import org.eclipse.swt.widgets.Text;
80
81 import swingwtx.swing.text.Document;
82
83 public class JTextArea extends swingwtx.swing.text.JTextComponent {
84
85 protected boolean pWordWrap = false;
86 protected int pRows = 0;
87 protected int pCols = 0;
88
89
90 private String  retVal = "";
91 private int iRetVal = 0;
92
93 public JTextArea() {
94 this(null, "", 0, 0);
95 }
96 public JTextArea(String text) {
97 this(null, text, 0, 0);
98 }
99 public JTextArea(int rows, int columns) {
100 this(null, "", rows, columns);
101 }
102 public JTextArea(String text, int rows, int columns) {
103 this(null, text, rows, columns);
104 }
105 public JTextArea(Document doc) {
106 this(doc, "", 0, 0);
107 }
108 public JTextArea(Document doc, String text, int rows, int columns) {
109 super();
110 if (doc != null) setDocument(doc);
111 if (text != null) {
112 setText(text);
113 view.updateModelFromComponent(getText());
114 }
115 pRows = rows;
116 pCols = columns;
117 calculateFromRowsCols();
118 }
119
120
124 protected void calculateFromRowsCols() {
125 if (pRows != 0 && pCols != 0)
126 setPreferredSize( new swingwt.awt.Dimension((SwingWTUtils.getRenderStringWidth("W") * pCols), 25 * pRows ));
127 else if (pRows == 0 && pCols != 0)
128 setPreferredSize( new swingwt.awt.Dimension((SwingWTUtils.getRenderStringWidth("W") * pCols), 25 ));
129 }
130
131
132 public void append(final String text) {
133 pText += text;
134 SwingUtilities.invokeSync(new Runnable () {
135 public void run() {
136 if (SwingWTUtils.isSWTControlAvailable(ppeer)) ppeer.append(text);
137 }
138 });
139 }
140
141 public boolean getLineWrap() { return true; }
142 public void setLineWrap(boolean b) { }
143 public boolean getWrapStyleWord() { return pWordWrap; }
144 public void setWrapStyleWord(final boolean b) { pWordWrap = b; }
145
146
149 protected swingwt.awt.Dimension calculatePreferredSize() {
150 swingwt.awt.Dimension size = new swingwt.awt.Dimension(
151 SwingWTUtils.getRenderStringWidth(pText),
152 SwingWTUtils.getRenderStringHeight(pText) + 4);
153 setSize(size);
154 return size;
155 }
156
157
162 public void setSwingWTParent(swingwt.awt.Container parent) throws Exception {
163 descendantHasPeer = true;
164 ppeer = new Text(parent.getComposite(), SWT.BORDER |
165 ( showHorizontalScrollBar ? SWT.H_SCROLL : SWT.NONE) |
166 ( showVerticalScrollBar ? SWT.V_SCROLL : SWT.NONE) |
167 SWT.MULTI |
168 ( pWordWrap ? SWT.WRAP : SWT.NONE )
169 );
170 ppeer.setText(pText);
171 ppeer.setEditable(pEditable);
172 ppeer.setTabs(0);
173 peer = ppeer;
174
175 ppeer.addKeyListener(new org.eclipse.swt.events.KeyAdapter() {
176 public void keyPressed(org.eclipse.swt.events.KeyEvent e) {
177
178 if ((e.keyCode == 97 ) && ((e.stateMask & SWT.CTRL) > 0)) {
180 selectAll();
181 e.doit = false;
182 }
183
184 if ((e.keyCode == SWT.TAB) && ((e.stateMask & SWT.SHIFT) > 0)) {
186 ppeer.traverse(SWT.TRAVERSE_TAB_PREVIOUS);
187 e.doit = false;
188 }
189 else if (e.keyCode == SWT.TAB) {
190 ppeer.traverse(SWT.TRAVERSE_TAB_NEXT);
191 e.doit = false;
192 }
193
194 }
195 });
196
197 this.parent = parent;
198 }
199
200 }
201 |
Popular Tags |
Java API By Example, From Geeks To Geeks.