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21
24 package org.lobobrowser.html.renderer;
25
26 import java.awt.Font  ;
27 import java.awt.FontMetrics ;
28 import java.awt.Insets ;
29 import javax.swing.text.AttributeSet ;
30 import javax.swing.text.BadLocationException ;
31 import javax.swing.text.JTextComponent ;
32
33 import org.lobobrowser.html.domimpl.*;
34 import org.lobobrowser.util.gui.WrapperLayout;
35
36 abstract class BaseInputTextControl extends BaseInputControl {
37 private static final float DEFAULT_FONT_SIZE = 14.0f;
38 protected final JTextComponent widget;
39
40 public BaseInputTextControl(final HTMLBaseInputElement modelNode) {
41 super(modelNode);
42 this.setLayout(WrapperLayout.getInstance());
43 JTextComponent widget = this.createTextField();
44 Font font = widget.getFont();
45 widget.setFont(font.deriveFont(DEFAULT_FONT_SIZE));
46 widget.setDocument(new LimitedDocument());
47 this.widget = widget;
48 this.add(widget);
49 }
50
51 public void reset(int availWidth, int availHeight) {
52 super.reset(availWidth, availHeight);
53 ElementImpl element = this.controlElement;
54 String value = element.getAttribute("value");
55 widget.setText(value);
56 String maxLengthText = this.controlElement.getAttribute("maxlength");
57 if(maxLengthText != null) {
58 try {
59 this.maxLength = Integer.parseInt(maxLengthText);
60 } catch(NumberFormatException nfe) {
61 }
63 }
64
65 }
66
67 protected abstract JTextComponent createTextField();
68
69 private int maxLength = -1;
70
71
74 public int getMaxLength() {
75 return this.maxLength;
76 }
77
78
81 public boolean getReadOnly() {
82 return !this.widget.isEditable();
83 }
84
85
88 public String getValue() {
89 return this.widget.getText();
90 }
91
92
95 public void select() {
96 this.widget.selectAll();
97 }
98
99
102 public void setDisabled(boolean disabled) {
103 super.setDisabled(disabled);
104 this.widget.setEnabled(!disabled);
105 }
106
107
110 public void setMaxLength(int maxLength) {
111 this.maxLength = maxLength;
112 }
113
114
117 public void setReadOnly(boolean readOnly) {
118 this.widget.setEditable(!readOnly);
119 }
120
121
124 public void setValue(String value) {
125 this.widget.setText(value);
126 }
127
128 public java.awt.Dimension getPreferredSize() {
129 int size = this.size;
130 JTextComponent widget = this.widget;
131 FontMetrics fm = widget.getFontMetrics(widget.getFont());
132 Insets insets = widget.getInsets();
133 int pw, ph;
134 if(size == -1) {
135 pw = 100;
136 }
137 else {
138 pw = insets.left + insets.right + fm.charWidth('0') * size;
139 }
140 ph = fm.getHeight() + insets.top + insets.bottom;
141 return new java.awt.Dimension (pw, ph);
142 }
143
144 public void resetInput() {
145 this.widget.setText("");
146 }
147
148
151 private class LimitedDocument extends javax.swing.text.PlainDocument {
152
155 public void insertString(int offs, String str, AttributeSet a) throws BadLocationException {
156 int max = BaseInputTextControl.this.maxLength;
157 if(max != -1) {
158 int docLength = this.getLength();
159 if(docLength >= max) {
160 return;
161 }
162 int strLen = str.length();
163 if(docLength + strLen > max) {
164 String shorterStr = str.substring(0, max - docLength);
165 super.insertString(offs, shorterStr, a);
166 }
167 else {
168 super.insertString(offs, str, a);
169 }
170 }
171 else {
172 super.insertString(offs, str, a);
173 }
174 }
175 }
176 }
177 |
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