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1 package org.eclipse.emf.examples.jet.article2.ui;
2
3
4 import org.eclipse.jface.dialogs.Dialog;
5 import org.eclipse.jface.dialogs.IDialogConstants;
6 import org.eclipse.swt.SWT;
7 import org.eclipse.swt.events.ModifyEvent;
8 import org.eclipse.swt.events.ModifyListener;
9 import org.eclipse.swt.layout.GridData;
10 import org.eclipse.swt.layout.GridLayout;
11 import org.eclipse.swt.widgets.Button;
12 import org.eclipse.swt.widgets.Composite;
13 import org.eclipse.swt.widgets.Control;
14 import org.eclipse.swt.widgets.Label;
15 import org.eclipse.swt.widgets.Shell;
16 import org.eclipse.swt.widgets.Text;
17
18 import org.eclipse.emf.examples.jet.article2.model.Attribute;
19 import org.eclipse.emf.examples.jet.article2.model.Instance;
20
21
22
23
29 public class EditInstanceDialog extends Dialog
30 {
31
32 private Button mCheckboxDefault = null;
33
34 private Text mTextName = null;
35
36 private Text[] mTextAttributeValues = null;
37
38 private Instance mInstance = null;
39
40 private Attribute[] mAttributes = new Attribute [0];
41
42 private String  mTitle = "Edit Instance";
43
44
49 public EditInstanceDialog(Shell parentShell)
50 {
51 super(parentShell);
52 setShellStyle(getShellStyle() | SWT.RESIZE);
53 }
54
55
58 protected void okPressed()
59 {
60 if (mCheckboxDefault.getSelection())
61 {
62 getInstance().setDefault();
63 }
64 else
65 {
66 if (getInstance().getType().getDefaultInstance() == getInstance())
67 {
68 getInstance().getType().setDefaultInstance(null);
69 }
70 }
71 getInstance().setName(mTextName.getText());
72 for (int i = 0; i < mAttributes.length; i++)
73 {
74 String name = mAttributes[i].getName();
75 String value = mTextAttributeValues[i].getText();
76 getInstance().getValues().put(name, value);
77 }
78 super.okPressed();
79 }
80
81
84 protected void cancelPressed()
85 {
86 super.cancelPressed();
87 }
88
89
92 protected Control createDialogArea(Composite parent)
93 {
94 Composite result = (Composite)super.createDialogArea(parent);
95
96 Composite panel = new Composite(result, SWT.NONE);
97 panel.setLayout(new GridLayout(2, false));
98 panel.setLayoutData(new GridData(GridData.FILL_BOTH));
99
100 Label name = new Label(panel, SWT.NONE);
101 name.setText(WizardMessages.getString("NewEnumWizPageInst.col.Name"));
102 mTextName = new Text(panel, SWT.SINGLE | SWT.BORDER);
103 mTextName.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
104
105 mTextAttributeValues = new Text [mAttributes.length];
106 for (int i = 0; i < mAttributes.length; i++)
107 {
108 Label label = new Label(panel, SWT.NONE);
109 String [] attr = new String []{ mAttributes[i].getType(), mAttributes[i].getName(), };
110 label.setText(WizardMessages.getFormattedString("EditInstanceDialog.attribute.Value", attr));
111 mTextAttributeValues[i] = new Text(panel, SWT.SINGLE | SWT.BORDER);
112 mTextAttributeValues[i].setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
113 }
114
115 Label defaultInstance = new Label(panel, SWT.NONE);
116 defaultInstance.setText(WizardMessages.getString("NewEnumWizPageInst.col.Default"));
117 mCheckboxDefault = new Button(panel, SWT.CHECK);
118
119 initWidgetValues();
120 hookListeners();
121
122 mTextName.forceFocus();
123
124 return result;
125 }
126
127 protected Control createContents(Composite parent)
128 {
129 Control result = super.createContents(parent);
130 validateInput();
131 return result;
132 }
133
134 private void initWidgetValues()
135 {
136 if (getInstance() == null)
137 {
138 throw new IllegalStateException ("Instance not set; cannot initialize");
139 }
140 mCheckboxDefault.setSelection(getInstance().isDefault());
141 mTextName.setText(getInstance().getName());
142
143 for (int i = 0; i < mTextAttributeValues.length; i++)
144 {
145 String value = getInstance().getAttributeValue(getAttributes()[i]);
146 value = (value == null) ? "" : value;
147 mTextAttributeValues[i].setText(value);
148 }
149 }
150
151 private void hookListeners()
152 {
153
154 mTextName.addModifyListener(new ModifyListener()
155 {
156 public void modifyText(ModifyEvent e)
157 {
158 validateInput();
159 }
160 });
161
162 for (int i = 0; i < mTextAttributeValues.length; i++)
163 {
164 mTextAttributeValues[i].addModifyListener(new ModifyListener()
165 {
166 public void modifyText(ModifyEvent e)
167 {
168 validateInput();
169 }
170 });
171 }
172 }
173
174 private void validateInput()
175 {
176 boolean hasName = mTextName.getText().trim().length() > 0;
177 boolean hasAllValues = true;
178 for (int i = 0; i < mTextAttributeValues.length; i++)
179 {
180 boolean hasValue = mTextAttributeValues[i].getText().trim().length() > 0;
181 hasAllValues &= hasValue;
182 }
183
184 boolean enabled = hasName && hasAllValues;
185 getButton(IDialogConstants.OK_ID).setEnabled(enabled);
186 }
187
188 protected void configureShell(Shell newShell)
189 {
190 super.configureShell(newShell);
191 newShell.setText(getTitle());
192 }
193
194
199 public String getTitle()
200 {
201 return mTitle;
202 }
203
204
210 public void setTitle(String title)
211 {
212 mTitle = title;
213 }
214
215
220 public Instance getInstance()
221 {
222 return mInstance;
223 }
224
225
231 public void setInstance(Instance instance)
232 {
233 mInstance = instance;
234 }
235
236
239 public Attribute[] getAttributes()
240 {
241 return mAttributes;
242 }
243
244
247 public void setAttributes(Attribute[] attributes)
248 {
249 if (attributes == null)
250 {
251 attributes = new Attribute [0];
252 }
253 mAttributes = attributes;
254 }
255
256 } |
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