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11 package org.eclipse.help.ui.internal.views;
12
13 import org.eclipse.help.ui.internal.HelpUIResources;
14 import org.eclipse.help.ui.internal.IHelpUIConstants;
15 import org.eclipse.help.ui.internal.Messages;
16 import org.eclipse.jface.action.IAction;
17 import org.eclipse.jface.action.IMenuManager;
18 import org.eclipse.swt.SWT;
19 import org.eclipse.swt.events.ControlAdapter;
20 import org.eclipse.swt.events.ControlEvent;
21 import org.eclipse.swt.graphics.GC;
22 import org.eclipse.swt.graphics.Image;
23 import org.eclipse.swt.graphics.Rectangle;
24 import org.eclipse.swt.layout.GridData;
25 import org.eclipse.swt.layout.GridLayout;
26 import org.eclipse.swt.layout.RowData;
27 import org.eclipse.swt.layout.RowLayout;
28 import org.eclipse.swt.widgets.Composite;
29 import org.eclipse.swt.widgets.Control;
30 import org.eclipse.swt.widgets.Label;
31 import org.eclipse.ui.IMemento;
32 import org.eclipse.ui.actions.ActionFactory;
33 import org.eclipse.ui.forms.AbstractFormPart;
34 import org.eclipse.ui.forms.FormColors;
35 import org.eclipse.ui.forms.HyperlinkGroup;
36 import org.eclipse.ui.forms.IFormColors;
37 import org.eclipse.ui.forms.events.HyperlinkAdapter;
38 import org.eclipse.ui.forms.events.HyperlinkEvent;
39 import org.eclipse.ui.forms.events.IHyperlinkListener;
40 import org.eclipse.ui.forms.widgets.FormToolkit;
41 import org.eclipse.ui.forms.widgets.ImageHyperlink;
42
43 public class SeeAlsoPart extends AbstractFormPart implements IHelpPart {
44 private Composite container;
45 private Composite linkContainer;
46 private ReusableHelpPart helpPart;
47 private String  id;
48 private Image bgImage;
49 private HyperlinkGroup hyperlinkGroup;
50
51
56 public SeeAlsoPart(Composite parent, FormToolkit toolkit) {
57 container = new Composite(parent, SWT.NULL);
58 container.setBackgroundMode(SWT.INHERIT_DEFAULT);
59 container.addControlListener(new ControlAdapter() {
60 public void controlResized(ControlEvent e) {
61 updateBackgroundImage();
62 }
63 });
64 GridLayout layout = new GridLayout();
65 layout.marginHeight = 0;
66 layout.verticalSpacing = 0;
68 layout.marginTop = 2;
69 container.setLayout(layout);
70
76
84 Label label = toolkit.createLabel(container, Messages.SeeAlsoPart_goto);
85 label.setForeground(toolkit.getColors().getColor(IFormColors.TITLE));
86 label.setBackground(null);
87 linkContainer = new Composite(container, SWT.NULL);
88 linkContainer.setLayoutData(new GridData(GridData.FILL_BOTH));
89 RowLayout rlayout = new RowLayout();
90 rlayout.marginBottom = 0;
91 rlayout.marginTop = 0;
92 rlayout.marginLeft = 0;
93 rlayout.marginRight = 0;
94 rlayout.justify = false;
95 rlayout.wrap = true;
96 linkContainer.setLayout(rlayout);
97
98 hyperlinkGroup = new HyperlinkGroup(container.getDisplay());
99 hyperlinkGroup.setHyperlinkUnderlineMode(toolkit.getHyperlinkGroup().getHyperlinkUnderlineMode());
100 }
101
102 private void updateBackgroundImage() {
103 FormToolkit toolkit = helpPart.getForm().getToolkit();
104 FormColors colors = toolkit.getColors();
105 Rectangle carea = container.getClientArea();
106 Image oldImage = bgImage;
107 if (bgImage!=null) {
108 Rectangle ibounds = bgImage.getBounds();
109 if (carea.height==ibounds.height)
110 return;
111 }
112 bgImage = new Image(container.getDisplay(), 1, carea.height);
113 GC gc = new GC(bgImage);
114 gc.setBackground(colors.getColor(IFormColors.H_GRADIENT_END));
115 gc.setForeground(colors.getColor(IFormColors.H_GRADIENT_START));
116 gc.fillGradientRectangle(0, 0,
117 1,
118 carea.height,
119 true);
120 gc.setForeground(colors.getColor(IFormColors.H_BOTTOM_KEYLINE2));
121 gc.drawLine(0, 0, 1, 0);
122 gc.setForeground(colors.getColor(IFormColors.H_BOTTOM_KEYLINE1));
123 gc.drawLine(0, 1, 1, 1);
124 gc.dispose();
125 container.setBackgroundImage(bgImage);
126 if (oldImage != null && !oldImage.isDisposed()) {
127 oldImage.dispose();
128 }
129 }
130
131 private void updateLinks(String href) {
132 Control [] children = linkContainer.getChildren();
133 for (int i=0; i<children.length; i++) {
134 ImageHyperlink link = (ImageHyperlink)children[i];
135 RowData data = (RowData)link.getLayoutData();
136 data.exclude = link.getHref().equals(href);
137 link.setVisible(!data.exclude);
138 }
139 linkContainer.layout();
140 helpPart.reflow();
141 }
142
143 private void addLinks(final Composite container, FormToolkit toolkit) {
144 IHyperlinkListener listener = new HyperlinkAdapter() {
145 public void linkActivated(final HyperlinkEvent e) {
146 container.getDisplay().asyncExec(new Runnable () {
147 public void run() {
148 SeeAlsoPart.this.helpPart.showPage((String ) e.getHref(), true);
149 }
150 });
151 }
152 };
153 if ((helpPart.getStyle() & ReusableHelpPart.ALL_TOPICS) != 0)
154 addPageLink(container, toolkit, Messages.SeeAlsoPart_allTopics, IHelpUIConstants.HV_ALL_TOPICS_PAGE,
155 IHelpUIConstants.IMAGE_ALL_TOPICS, listener);
156 if ((helpPart.getStyle() & ReusableHelpPart.SEARCH) != 0) {
157 addPageLink(container, toolkit, Messages.SeeAlsoPart_search, IHelpUIConstants.HV_FSEARCH_PAGE,
158 IHelpUIConstants.IMAGE_HELP_SEARCH, listener);
159 }
160 if ((helpPart.getStyle() & ReusableHelpPart.CONTEXT_HELP) != 0) {
161 addPageLink(container, toolkit, Messages.SeeAlsoPart_contextHelp,
162 IHelpUIConstants.HV_CONTEXT_HELP_PAGE,
163 IHelpUIConstants.IMAGE_RELATED_TOPICS, listener);
164 }
165 if ((helpPart.getStyle() & ReusableHelpPart.BOOKMARKS) != 0) {
166 addPageLink(container, toolkit, Messages.SeeAlsoPart_bookmarks,
167 IHelpUIConstants.HV_BOOKMARKS_PAGE,
168 IHelpUIConstants.IMAGE_BOOKMARKS, listener);
169 }
170 if ((helpPart.getStyle() & ReusableHelpPart.INDEX) != 0) {
171 addPageLink(container, toolkit, Messages.SeeAlsoPart_index,
172 IHelpUIConstants.HV_INDEX_PAGE,
173 IHelpUIConstants.IMAGE_INDEX, listener);
174 }
175 }
176
177 private void addPageLink(Composite container, FormToolkit toolkit, String text, String id,
178 String imgRef, IHyperlinkListener listener) {
179 String cid = helpPart.getCurrentPageId();
180 if (cid!=null && cid.equals(id))
181 return;
182 ImageHyperlink link = new ImageHyperlink(container, SWT.WRAP|toolkit.getOrientation());
183 toolkit.adapt(link, true, true);
184 link.setImage(HelpUIResources.getImage(imgRef));
185 link.setText(text);
186 link.setHref(id);
187 link.setBackground(null);
188 link.addHyperlinkListener(listener);
189 hyperlinkGroup.add(link);
190 RowData data = new RowData();
191 data.exclude = false;
192 link.setLayoutData(data);
193 }
194
195
200 public Control getControl() {
201 return container;
202 }
203
204
209 public void init(ReusableHelpPart parent, String id, IMemento memento) {
210 this.helpPart = parent;
211 this.id = id;
212 addLinks(linkContainer, helpPart.getForm().getToolkit());
213 }
214
215 public String getId() {
216 return id;
217 }
218
219
224 public void setVisible(boolean visible) {
225 container.setVisible(visible);
226 if (visible)
227 markStale();
228 }
229
230
233 public void dispose() {
234 super.dispose();
235 if (bgImage != null && !bgImage.isDisposed()) {
236 bgImage.dispose();
237 }
238 }
239
240
245 public boolean fillContextMenu(IMenuManager manager) {
246 return false;
247 }
248
249
254 public boolean hasFocusControl(Control control) {
255 return control.getParent() == linkContainer;
256 }
257
258 public IAction getGlobalAction(String id) {
259 if (id.equals(ActionFactory.COPY.getId()))
260 return helpPart.getCopyAction();
261 return null;
262 }
263 public void stop() {
264 }
265 public void refresh() {
266 if (linkContainer!=null && helpPart.getCurrentPageId()!=null)
267 updateLinks(helpPart.getCurrentPageId());
268 super.refresh();
269 }
270
271 public void toggleRoleFilter() {
272 }
273
274 public void refilter() {
275 }
276
277 public void saveState(IMemento memento) {
278 }
279
280 public void setFocus() {
281 if (linkContainer!=null)
282 linkContainer.setFocus();
283 }
284 }
285 |
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