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12 package org.eclipse.jsch.internal.ui.preference;
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 public class SWTUtils {
25
26 public static final int MARGINS_DEFAULT= -1;
27 public static final int MARGINS_NONE= 0;
28 public static final int MARGINS_DIALOG= 1;
29
30 public static PreferenceLinkArea createPreferenceLink(IWorkbenchPreferenceContainer container, Composite parent, String  pageId, String text) {
31 final PreferenceLinkArea area = new PreferenceLinkArea(parent, SWT.NONE, pageId, text, container, null);
32 return area;
33 }
34
35 public static GridData createGridData(int width, int height, boolean hFill, boolean vFill) {
36 return createGridData(width, height, hFill ? SWT.FILL : SWT.BEGINNING, vFill ? SWT.FILL : SWT.CENTER, hFill, vFill);
37 }
38
39 public static GridData createGridData(int width, int height, int hAlign, int vAlign, boolean hGrab, boolean vGrab) {
40 final GridData gd= new GridData(hAlign, vAlign, hGrab, vGrab);
41 gd.widthHint= width;
42 gd.heightHint= height;
43 return gd;
44 }
45
46 public static GridData createHFillGridData() {
47 return createHFillGridData(1);
48 }
49
50 public static GridData createHFillGridData(int span) {
51 final GridData gd= createGridData(0, SWT.DEFAULT, SWT.FILL, SWT.CENTER, true, false);
52 gd.horizontalSpan= span;
53 return gd;
54 }
55
56 public static Composite createHFillComposite(Composite parent, int margins) {
57 return createHFillComposite(parent, margins, 1);
58 }
59
60 public static Composite createHFillComposite(Composite parent, int margins, int columns) {
61 final Composite composite= new Composite(parent, SWT.NONE);
62 composite.setFont(parent.getFont());
63 composite.setLayoutData(createHFillGridData());
64 composite.setLayout(createGridLayout(columns, new PixelConverter(parent), margins));
65 return composite;
66 }
67
68 public static Composite createHVFillComposite(Composite parent, int margins) {
69 return createHVFillComposite(parent, margins, 1);
70 }
71
72 public static Composite createHVFillComposite(Composite parent, int margins, int columns) {
73 final Composite composite= new Composite(parent, SWT.NONE);
74 composite.setFont(parent.getFont());
75 composite.setLayoutData(createHVFillGridData());
76 composite.setLayout(createGridLayout(columns, new PixelConverter(parent), margins));
77 return composite;
78 }
79
80
81 public static Group createHFillGroup(Composite parent, String text, int margins) {
82 return createHFillGroup(parent, text, margins, 1);
83 }
84
85 public static Group createHFillGroup(Composite parent, String text, int margins, int rows) {
86 final Group group= new Group(parent, SWT.NONE);
87 group.setFont(parent.getFont());
88 group.setLayoutData(createHFillGridData());
89 if (text != null)
90 group.setText(text);
91 group.setLayout(createGridLayout(rows, new PixelConverter(parent), margins));
92 return group;
93 }
94
95 public static Group createHVFillGroup(Composite parent, String text, int margins) {
96 return createHVFillGroup(parent, text, margins, 1);
97 }
98
99 public static Group createHVFillGroup(Composite parent, String text, int margins, int rows) {
100 final Group group= new Group(parent, SWT.NONE);
101 group.setFont(parent.getFont());
102 group.setLayoutData(createHVFillGridData());
103 if (text != null)
104 group.setText(text);
105 group.setLayout(createGridLayout(rows, new PixelConverter(parent), margins));
106 return group;
107 }
108
109 public static GridData createHVFillGridData() {
110 return createHVFillGridData(1);
111 }
112
113 public static GridData createHVFillGridData(int span) {
114 final GridData gd= createGridData(0, 0, true, true);
115 gd.horizontalSpan= span;
116 return gd;
117 }
118
119
120
133 public static GridLayout createGridLayout(int numColumns, PixelConverter converter, int margins) {
134 Assert.isTrue(margins == MARGINS_DEFAULT || margins == MARGINS_NONE || margins == MARGINS_DIALOG);
135
136 final GridLayout layout= new GridLayout(numColumns, false);
137 layout.horizontalSpacing= converter.convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
138 layout.verticalSpacing= converter.convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
139
140 switch (margins) {
141 case MARGINS_NONE:
142 layout.marginLeft= layout.marginRight= 0;
143 layout.marginTop= layout.marginBottom= 0;
144 break;
145 case MARGINS_DIALOG:
146 layout.marginLeft= layout.marginRight= converter.convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
147 layout.marginTop= layout.marginBottom= converter.convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
148 break;
149 case MARGINS_DEFAULT:
150 layout.marginLeft= layout.marginRight= layout.marginWidth;
151 layout.marginTop= layout.marginBottom= layout.marginHeight;
152 }
153 layout.marginWidth= layout.marginHeight= 0;
154 return layout;
155 }
156
157
158 public static Label createLabel(Composite parent, String message) {
159 return createLabel(parent, message, 1);
160 }
161
162 public static Label createLabel(Composite parent, String message, int span) {
163 final Label label= new Label(parent, SWT.WRAP);
164 if (message != null)
165 label.setText(message);
166 label.setLayoutData(createHFillGridData(span));
167 return label;
168 }
169
170 public static Button createCheckBox(Composite parent, String message) {
171 return createCheckBox(parent, message, 1);
172 }
173
174 public static Button createCheckBox(Composite parent, String message, int span) {
175 final Button button= new Button(parent, SWT.CHECK);
176 button.setText(message);
177 button.setLayoutData(createHFillGridData(span));
178 return button;
179 }
180
181 public static Button createRadioButton(Composite parent, String message) {
182 return createRadioButton(parent, message, 1);
183 }
184
185 public static Button createRadioButton(Composite parent, String message, int span) {
186 final Button button= new Button(parent, SWT.RADIO);
187 button.setText(message);
188 button.setLayoutData(createHFillGridData(span));
189 return button;
190 }
191
192
193 public static Text createText(Composite parent) {
194 return createText(parent, 1);
195 }
196
197 public static Text createText(Composite parent, int span) {
198 final Text text= new Text(parent, SWT.SINGLE | SWT.BORDER);
199 text.setLayoutData(createHFillGridData(span));
200 return text;
201 }
202
203
204 public static Control createPlaceholder(Composite parent, int heightInChars, int span) {
205 Assert.isTrue(heightInChars > 0);
206 final Control placeHolder= new Composite(parent, SWT.NONE);
207 final GridData gd= new GridData(SWT.BEGINNING, SWT.TOP, false, false);
208 gd.heightHint= new PixelConverter(parent).convertHeightInCharsToPixels(heightInChars);
209 gd.horizontalSpan= span;
210 placeHolder.setLayoutData(gd);
211 return placeHolder;
212 }
213
214
215 public static Control createPlaceholder(Composite parent, int heightInChars) {
216 return createPlaceholder(parent, heightInChars, 1);
217 }
218
219 public static PixelConverter createDialogPixelConverter(Control control) {
220 Dialog.applyDialogFont(control);
221 return new PixelConverter(control);
222 }
223
224 public static int calculateControlSize(PixelConverter converter, Control [] controls) {
225 return calculateControlSize(converter, controls, 0, controls.length - 1);
226 }
227
228 public static int calculateControlSize(PixelConverter converter, Control [] controls, int start, int end) {
229 int minimum= converter.convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
230 for (int i = start; i <= end; i++) {
231 final int length= controls[i].computeSize(SWT.DEFAULT, SWT.DEFAULT).x;
232 if (minimum < length)
233 minimum= length;
234 }
235 return minimum;
236 }
237
238 public static void equalizeControls(PixelConverter converter, Control [] controls) {
239 equalizeControls(converter, controls, 0, controls.length - 1);
240 }
241
242 public static void equalizeControls(PixelConverter converter, Control [] controls, int start, int end) {
243 final int size= calculateControlSize(converter, controls, start, end);
244 for (int i = start; i <= end; i++) {
245 final Control button= controls[i];
246 if (button.getLayoutData() instanceof GridData) {
247 ((GridData)button.getLayoutData()).widthHint= size;
248 }
249 }
250 }
251
252 public static int getWidthInCharsForLongest(PixelConverter converter, String [] strings) {
253 int minimum= 0;
254 for (int i = 0; i < strings.length; i++) {
255 final int length= converter.convertWidthInCharsToPixels(strings[i].length());
256 if (minimum < length)
257 minimum= length;
258 }
259 return minimum;
260 }
261 }
262 |
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