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1
11 package org.eclipse.debug.internal.ui.viewers.model;
12
13 import org.eclipse.debug.internal.core.commands.Request;
14 import org.eclipse.debug.internal.ui.viewers.model.provisional.ILabelUpdate;
15 import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;
16 import org.eclipse.jface.resource.ImageDescriptor;
17 import org.eclipse.jface.viewers.TreePath;
18 import org.eclipse.swt.graphics.Color;
19 import org.eclipse.swt.graphics.Font;
20 import org.eclipse.swt.graphics.FontData;
21 import org.eclipse.swt.graphics.Image;
22 import org.eclipse.swt.graphics.RGB;
23 import org.eclipse.swt.widgets.TreeItem;
24
25
28 class LabelUpdate extends Request implements ILabelUpdate {
29
30 private TreePath fElementPath;
31 private String  [] fColumnIds;
32 private RGB[] fBackgrounds;
33 private RGB[] fForegrounds;
34 private ImageDescriptor[] fImageDescriptors;
35 private String [] fLabels;
36 private FontData[] fFontDatas;
37 private TreeModelLabelProvider fProvider;
38 private TreeItem fItem;
39 private int fNumColumns;
40 private IPresentationContext fContext;
41
42
46 static String PREV_LABEL_KEY = "PREV_LABEL_KEY"; static String PREV_IMAGE_KEY = "PREV_IMAGE_KEY"; static String PREV_FONT_KEY = "PREV_FONT_KEY"; static String PREV_FOREGROUND_KEY = "PREV_FOREGROUND_KEY"; static String PREV_BACKGROUND_KEY = "PREV_BACKGROUND_KEY";
52
59 public LabelUpdate(TreePath elementPath, TreeItem item, TreeModelLabelProvider provider, String [] columnIds, IPresentationContext context) {
60 fContext = context;
61 fElementPath = elementPath;
62 fProvider = provider;
63 fColumnIds = columnIds;
64 fItem = item;
65 fNumColumns = 1;
66 if (columnIds != null) {
67 fNumColumns = columnIds.length;
68 }
69 fLabels = new String [fNumColumns];
70 fProvider.updateStarted(this);
71 }
72
73
76 public String [] getColumnIds() {
77 return fColumnIds;
78 }
79
80
83 public TreePath getElementPath() {
84 return fElementPath;
85 }
86
87
90 public void setBackground(RGB background, int columnIndex) {
91 if (background == null) {
92 return;
93 }
94 if (fBackgrounds == null) {
95 fBackgrounds = new RGB[fNumColumns];
96 }
97 fBackgrounds[columnIndex] = background;
98 }
99
100
103 public void setFontData(FontData fontData, int columnIndex) {
104 if (fontData == null) {
105 return;
106 }
107 if (fFontDatas == null) {
108 fFontDatas = new FontData[fNumColumns];
109 }
110 fFontDatas[columnIndex] = fontData;
111 }
112
113
116 public void setForeground(RGB foreground, int columnIndex) {
117 if (foreground == null) {
118 return;
119 }
120 if (fForegrounds == null) {
121 fForegrounds = new RGB[fNumColumns];
122 }
123 fForegrounds[columnIndex] = foreground;
124 }
125
126
129 public void setImageDescriptor(ImageDescriptor image, int columnIndex) {
130 if (image == null) {
131 return;
132 }
133 if (fImageDescriptors == null) {
134 fImageDescriptors = new ImageDescriptor[fNumColumns];
135 }
136 fImageDescriptors[columnIndex] = image;
137 }
138
139
142 public void setLabel(String text, int columnIndex) {
143 fLabels[columnIndex] = text;
144 }
145
146
149 public IPresentationContext getPresentationContext() {
150 return fContext;
151 }
152
153
156 public void done() {
157 fProvider.complete(this);
158 }
159
160
163 public void update() {
164 if (!fItem.isDisposed()) {
166
167 for (int i=0; i<fNumColumns; i++){
168 fItem.setText(i,(fLabels[i] == null ? "" : fLabels[i])); }
171 fItem.setData(PREV_LABEL_KEY, fLabels);
172
173 if (fImageDescriptors == null) {
174 for (int i=0; i<fNumColumns; i++){
175 fItem.setImage(i,null);
176 }
177 fItem.setData(PREV_IMAGE_KEY, null);
178 } else {
179 Image[] images = new Image[fImageDescriptors.length];
180 for (int i = 0; i < fImageDescriptors.length; i++) {
181 images[i] = fProvider.getImage(fImageDescriptors[i]);
182 }
183 if (fColumnIds == null) {
184 fItem.setImage(images[0]);
185 } else {
186 fItem.setImage(images);
187 }
188 fItem.setData(PREV_IMAGE_KEY, images);
189 }
190
191 if (fForegrounds == null) {
192 for (int i=0; i<fNumColumns; i++){
193 fItem.setForeground(i,null);
194 }
195 fItem.setData(PREV_FOREGROUND_KEY, null);
196 } else {
197 Color[] foregrounds = new Color[fForegrounds.length];
198 for (int i = 0; i< foregrounds.length; i++) {
199 foregrounds[i] = fProvider.getColor(fForegrounds[i]);
200 }
201 if (fColumnIds == null) {
202 fItem.setForeground(0,foregrounds[0]);
203 } else {
204 for (int i = 0; i< foregrounds.length; i++) {
205 fItem.setForeground(i, foregrounds[i]);
206 }
207 }
208 fItem.setData(PREV_FOREGROUND_KEY, foregrounds);
209 }
210
211 if (fBackgrounds == null) {
212 for (int i=0; i<fNumColumns; i++){
213 fItem.setBackground(i,null);
214 }
215 fItem.setData(PREV_BACKGROUND_KEY, null);
216 } else {
217 Color[] backgrounds = new Color[fBackgrounds.length];
218 for (int i = 0; i< backgrounds.length; i++) {
219 backgrounds[i] = fProvider.getColor(fBackgrounds[i]);
220 }
221 if (fColumnIds == null) {
222 fItem.setBackground(0,backgrounds[0]);
223 } else {
224 for (int i = 0; i< backgrounds.length; i++) {
225 fItem.setBackground(i, backgrounds[i]);
226 }
227 }
228 fItem.setData(PREV_BACKGROUND_KEY, backgrounds);
229 }
230
231 if (fFontDatas == null) {
232 for (int i=0; i<fNumColumns; i++){
233 fItem.setFont(i,null);
234 }
235 fItem.setData(PREV_FONT_KEY, null);
236 } else {
237 Font[] fonts = new Font[fFontDatas.length];
238 for (int i = 0; i < fFontDatas.length; i++) {
239 fonts[i] = fProvider.getFont(fFontDatas[i]);
240 }
241 if (fColumnIds == null) {
242 fItem.setFont(0,fonts[0]);
243 } else {
244 for (int i = 0; i < fonts.length; i++) {
245 fItem.setFont(i, fonts[i]);
246 }
247 }
248 fItem.setData(PREV_FONT_KEY, fonts);
249 }
250 }
251 fProvider.updateComplete(this);
252 }
253
254
257 public Object getElement() {
258 return getElementPath().getLastSegment();
259 }
260
261 public String toString() {
262 StringBuffer buf = new StringBuffer ();
263 buf.append("ILabelUpdate: "); buf.append(getElement());
265 return buf.toString();
266 }
267 }
268 |
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