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1
11
12 package org.eclipse.team.internal.ui;
13
14 import org.eclipse.core.runtime.Assert;
15 import org.eclipse.jface.dialogs.Dialog;
16 import org.eclipse.jface.dialogs.IDialogConstants;
17 import org.eclipse.swt.SWT;
18 import org.eclipse.swt.layout.GridData;
19 import org.eclipse.swt.layout.GridLayout;
20 import org.eclipse.swt.widgets.*;
21 import org.eclipse.ui.dialogs.PreferenceLinkArea;
22 import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;
23
24
25
26
29 public class SWTUtils {
30
31 public static final int MARGINS_DEFAULT= -1;
32 public static final int MARGINS_NONE= 0;
33 public static final int MARGINS_DIALOG= 1;
34
35 public static PreferenceLinkArea createPreferenceLink(IWorkbenchPreferenceContainer container, Composite parent, String  pageId, String text) {
36 final PreferenceLinkArea area = new PreferenceLinkArea(parent, SWT.NONE, pageId, text, container, null);
37 return area;
38 }
39
40 public static GridData createGridData(int width, int height, boolean hFill, boolean vFill) {
41 return createGridData(width, height, hFill ? SWT.FILL : SWT.BEGINNING, vFill ? SWT.FILL : SWT.CENTER, hFill, vFill);
42 }
43
44 public static GridData createGridData(int width, int height, int hAlign, int vAlign, boolean hGrab, boolean vGrab) {
45 final GridData gd= new GridData(hAlign, vAlign, hGrab, vGrab);
46 gd.widthHint= width;
47 gd.heightHint= height;
48 return gd;
49 }
50
51 public static GridData createHFillGridData() {
52 return createHFillGridData(1);
53 }
54
55 public static GridData createHFillGridData(int span) {
56 final GridData gd= createGridData(0, SWT.DEFAULT, SWT.FILL, SWT.CENTER, true, false);
57 gd.horizontalSpan= span;
58 return gd;
59 }
60
61 public static Composite createHFillComposite(Composite parent, int margins) {
62 return createHFillComposite(parent, margins, 1);
63 }
64
65 public static Composite createHFillComposite(Composite parent, int margins, int columns) {
66 final Composite composite= new Composite(parent, SWT.NONE);
67 composite.setFont(parent.getFont());
68 composite.setLayoutData(createHFillGridData());
69 composite.setLayout(createGridLayout(columns, new PixelConverter(parent), margins));
70 return composite;
71 }
72
73 public static Composite createHVFillComposite(Composite parent, int margins) {
74 return createHVFillComposite(parent, margins, 1);
75 }
76
77 public static Composite createHVFillComposite(Composite parent, int margins, int columns) {
78 final Composite composite= new Composite(parent, SWT.NONE);
79 composite.setFont(parent.getFont());
80 composite.setLayoutData(createHVFillGridData());
81 composite.setLayout(createGridLayout(columns, new PixelConverter(parent), margins));
82 return composite;
83 }
84
85
86
89
90 public static Group createHFillGroup(Composite parent, String text, int margins) {
91 return createHFillGroup(parent, text, margins, 1);
92 }
93
94 public static Group createHFillGroup(Composite parent, String text, int margins, int rows) {
95 final Group group= new Group(parent, SWT.NONE);
96 group.setFont(parent.getFont());
97 group.setLayoutData(createHFillGridData());
98 if (text != null)
99 group.setText(text);
100 group.setLayout(createGridLayout(rows, new PixelConverter(parent), margins));
101 return group;
102 }
103
104 public static Group createHVFillGroup(Composite parent, String text, int margins) {
105 return createHVFillGroup(parent, text, margins, 1);
106 }
107
108 public static Group createHVFillGroup(Composite parent, String text, int margins, int rows) {
109 final Group group= new Group(parent, SWT.NONE);
110 group.setFont(parent.getFont());
111 group.setLayoutData(createHVFillGridData());
112 if (text != null)
113 group.setText(text);
114 group.setLayout(createGridLayout(rows, new PixelConverter(parent), margins));
115 return group;
116 }
117
118
119
122
123 public static GridData createHVFillGridData() {
124 return createHVFillGridData(1);
125 }
126
127 public static GridData createHVFillGridData(int span) {
128 final GridData gd= createGridData(0, 0, true, true);
129 gd.horizontalSpan= span;
130 return gd;
131 }
132
133
134
147 public static GridLayout createGridLayout(int numColumns, PixelConverter converter, int margins) {
148 Assert.isTrue(margins == MARGINS_DEFAULT || margins == MARGINS_NONE || margins == MARGINS_DIALOG);
149
150 final GridLayout layout= new GridLayout(numColumns, false);
151 layout.horizontalSpacing= converter.convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
152 layout.verticalSpacing= converter.convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
153
154 switch (margins) {
155 case MARGINS_NONE:
156 layout.marginLeft= layout.marginRight= 0;
157 layout.marginTop= layout.marginBottom= 0;
158 break;
159 case MARGINS_DIALOG:
160 layout.marginLeft= layout.marginRight= converter.convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
161 layout.marginTop= layout.marginBottom= converter.convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
162 break;
163 case MARGINS_DEFAULT:
164 layout.marginLeft= layout.marginRight= layout.marginWidth;
165 layout.marginTop= layout.marginBottom= layout.marginHeight;
166 }
167 layout.marginWidth= layout.marginHeight= 0;
168 return layout;
169 }
170
171
172 public static Label createLabel(Composite parent, String message) {
173 return createLabel(parent, message, 1);
174 }
175
176 public static Label createLabel(Composite parent, String message, int span) {
177 final Label label= new Label(parent, SWT.WRAP);
178 if (message != null)
179 label.setText(message);
180 label.setLayoutData(createHFillGridData(span));
181 return label;
182 }
183
184 public static Button createCheckBox(Composite parent, String message) {
185 return createCheckBox(parent, message, 1);
186 }
187
188 public static Button createCheckBox(Composite parent, String message, int span) {
189 final Button button= new Button(parent, SWT.CHECK);
190 button.setText(message);
191 button.setLayoutData(createHFillGridData(span));
192 return button;
193 }
194
195 public static Button createRadioButton(Composite parent, String message) {
196 return createRadioButton(parent, message, 1);
197 }
198
199 public static Button createRadioButton(Composite parent, String message, int span) {
200 final Button button= new Button(parent, SWT.RADIO);
201 button.setText(message);
202 button.setLayoutData(createHFillGridData(span));
203 return button;
204 }
205
206
207 public static Text createText(Composite parent) {
208 return createText(parent, 1);
209 }
210
211 public static Text createText(Composite parent, int span) {
212 final Text text= new Text(parent, SWT.SINGLE | SWT.BORDER);
213 text.setLayoutData(createHFillGridData(span));
214 return text;
215 }
216
217
218 public static Control createPlaceholder(Composite parent, int heightInChars, int span) {
219 Assert.isTrue(heightInChars > 0);
220 final Control placeHolder= new Composite(parent, SWT.NONE);
221 final GridData gd= new GridData(SWT.BEGINNING, SWT.TOP, false, false);
222 gd.heightHint= new PixelConverter(parent).convertHeightInCharsToPixels(heightInChars);
223 gd.horizontalSpan= span;
224 placeHolder.setLayoutData(gd);
225 return placeHolder;
226 }
227
228
229 public static Control createPlaceholder(Composite parent, int heightInChars) {
230 return createPlaceholder(parent, heightInChars, 1);
231 }
232
233 public static PixelConverter createDialogPixelConverter(Control control) {
234 Dialog.applyDialogFont(control);
235 return new PixelConverter(control);
236 }
237
238 public static int calculateControlSize(PixelConverter converter, Control [] controls) {
239 return calculateControlSize(converter, controls, 0, controls.length - 1);
240 }
241
242 public static int calculateControlSize(PixelConverter converter, Control [] controls, int start, int end) {
243 int minimum= converter.convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
244 for (int i = start; i <= end; i++) {
245 final int length= controls[i].computeSize(SWT.DEFAULT, SWT.DEFAULT).x;
246 if (minimum < length)
247 minimum= length;
248 }
249 return minimum;
250 }
251
252 public static void equalizeControls(PixelConverter converter, Control [] controls) {
253 equalizeControls(converter, controls, 0, controls.length - 1);
254 }
255
256 public static void equalizeControls(PixelConverter converter, Control [] controls, int start, int end) {
257 final int size= calculateControlSize(converter, controls, start, end);
258 for (int i = start; i <= end; i++) {
259 final Control button= controls[i];
260 if (button.getLayoutData() instanceof GridData) {
261 ((GridData)button.getLayoutData()).widthHint= size;
262 }
263 }
264 }
265
266 public static int getWidthInCharsForLongest(PixelConverter converter, String [] strings) {
267 int minimum= 0;
268 for (int i = 0; i < strings.length; i++) {
269 final int length= converter.convertWidthInCharsToPixels(strings[i].length());
270 if (minimum < length)
271 minimum= length;
272 }
273 return minimum;
274 }
275 }
276 |
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