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1
11 package org.eclipse.jdt.internal.ui.wizards.buildpaths;
12 import java.util.List  ;
13
14 import org.eclipse.core.runtime.IPath;
15 import org.eclipse.core.runtime.Path;
16
17 import org.eclipse.swt.SWT;
18 import org.eclipse.swt.events.SelectionEvent;
19 import org.eclipse.swt.events.SelectionListener;
20 import org.eclipse.swt.layout.GridData;
21 import org.eclipse.swt.widgets.Button;
22 import org.eclipse.swt.widgets.Composite;
23 import org.eclipse.swt.widgets.Control;
24 import org.eclipse.swt.widgets.Label;
25 import org.eclipse.swt.widgets.Shell;
26 import org.eclipse.swt.widgets.Text;
27
28 import org.eclipse.jface.dialogs.StatusDialog;
29 import org.eclipse.jface.viewers.DoubleClickEvent;
30 import org.eclipse.jface.viewers.IDoubleClickListener;
31 import org.eclipse.jface.viewers.ISelectionChangedListener;
32 import org.eclipse.jface.viewers.SelectionChangedEvent;
33 import org.eclipse.jface.window.Window;
34
35 import org.eclipse.ui.PlatformUI;
36
37 import org.eclipse.jdt.core.JavaCore;
38
39 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
40 import org.eclipse.jdt.internal.ui.JavaPlugin;
41 import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
42 import org.eclipse.jdt.internal.ui.wizards.NewWizardMessages;
43 import org.eclipse.jdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
44 import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringButtonDialogField;
45
46 public class VariablePathDialogField extends StringButtonDialogField {
47
48 public static class ChooseVariableDialog extends StatusDialog implements ISelectionChangedListener, IDoubleClickListener {
49 private VariableBlock fVariableBlock;
50
51 public ChooseVariableDialog(Shell parent, String variableSelection) {
52 super(parent);
53 int shellStyle= getShellStyle();
54 setShellStyle(shellStyle | SWT.MAX | SWT.RESIZE);
55
56 setTitle(NewWizardMessages.VariablePathDialogField_variabledialog_title);
57 fVariableBlock= new VariableBlock(false, variableSelection);
58 }
59
60 protected Control createDialogArea(Composite parent) {
61 Composite composite= (Composite) super.createDialogArea(parent);
62 Control control= fVariableBlock.createContents(composite);
63
64 GridData data= new GridData(GridData.FILL_BOTH);
65 data.widthHint= convertWidthInCharsToPixels(80);
66 data.heightHint= convertHeightInCharsToPixels(15);
67 control.setLayoutData(data);
68
69 fVariableBlock.addDoubleClickListener(this);
70 fVariableBlock.addSelectionChangedListener(this);
71 applyDialogFont(composite);
72 return composite;
73 }
74
75 protected void okPressed() {
76 fVariableBlock.performOk();
77 super.okPressed();
78 }
79
80 public String getSelectedVariable() {
81 List elements= fVariableBlock.getSelectedElements();
82 return ((CPVariableElement) elements.get(0)).getName();
83 }
84
85
88 public void doubleClick(DoubleClickEvent event) {
89 if (getStatus().isOK()) {
90 okPressed();
91 }
92 }
93
94
97 public void selectionChanged(SelectionChangedEvent event) {
98 List elements= fVariableBlock.getSelectedElements();
99 StatusInfo status= new StatusInfo();
100 if (elements.size() != 1) {
101 status.setError(""); }
103 updateStatus(status);
104 }
105
108 protected void configureShell(Shell newShell) {
109 super.configureShell(newShell);
110 PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell, IJavaHelpContextIds.CHOOSE_VARIABLE_DIALOG);
111 }
112 }
113
114 private Button fBrowseVariableButton;
115 private String fVariableButtonLabel;
116
117 public VariablePathDialogField(IStringButtonAdapter adapter) {
118 super(adapter);
119 }
120
121 public void setVariableButtonLabel(String label) {
122 fVariableButtonLabel= label;
123 }
124
125
127 public Control[] doFillIntoGrid(Composite parent, int nColumns) {
128 assertEnoughColumns(nColumns);
129
130 Label label= getLabelControl(parent);
131 label.setLayoutData(gridDataForLabel(1));
132 Text text= getTextControl(parent);
133 text.setLayoutData(gridDataForText(nColumns - 3));
134 Button variableButton= getBrowseVariableControl(parent);
135 variableButton.setLayoutData(gridDataForButton(variableButton, 1));
136 Button browseButton= getChangeControl(parent);
137 browseButton.setLayoutData(gridDataForButton(browseButton, 1));
138 return new Control[] { label, text, variableButton, browseButton };
139 }
140
141 public int getNumberOfControls() {
142 return 4;
143 }
144 public Button getBrowseVariableControl(Composite parent) {
145 if (fBrowseVariableButton == null) {
146 assertCompositeNotNull(parent);
147
148 fBrowseVariableButton= new Button(parent, SWT.PUSH);
149 fBrowseVariableButton.setText(fVariableButtonLabel);
150 fBrowseVariableButton.setEnabled(isEnabled());
151 fBrowseVariableButton.addSelectionListener(new SelectionListener() {
152 public void widgetDefaultSelected(SelectionEvent e) {
153 chooseVariablePressed();
154 }
155 public void widgetSelected(SelectionEvent e) {
156 chooseVariablePressed();
157 }
158 });
159
160 }
161 return fBrowseVariableButton;
162 }
163
164 public IPath getPath() {
165 return new Path(getText());
166 }
167
168 public String getVariable() {
169 IPath path= getPath();
170 if (!path.isEmpty()) {
171 return path.segment(0);
172 }
173 return null;
174 }
175
176 public IPath getPathExtension() {
177 return new Path(getText()).removeFirstSegments(1).setDevice(null);
178 }
179
180 public IPath getResolvedPath() {
181 String variable= getVariable();
182 if (variable != null) {
183 IPath path= JavaCore.getClasspathVariable(variable);
184 if (path != null) {
185 return path.append(getPathExtension());
186 }
187 }
188 return null;
189 }
190
191 private Shell getShell() {
192 if (fBrowseVariableButton != null) {
193 return fBrowseVariableButton.getShell();
194 }
195 return JavaPlugin.getActiveWorkbenchShell();
196 }
197
198 private void chooseVariablePressed() {
199 String variable= getVariable();
200 ChooseVariableDialog dialog= new ChooseVariableDialog(getShell(), variable);
201 if (dialog.open() == Window.OK) {
202 IPath newPath= new Path(dialog.getSelectedVariable()).append(getPathExtension());
203 setText(newPath.toString());
204 }
205 }
206
207 protected void updateEnableState() {
208 super.updateEnableState();
209 if (isOkToUse(fBrowseVariableButton)) {
210 fBrowseVariableButton.setEnabled(isEnabled());
211 }
212 }
213
214 }
215 |
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