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1
11 package org.eclipse.ui.internal.cheatsheets.views;
12
13 import java.util.ArrayList  ;
14 import java.util.Iterator ;
15
16 import org.eclipse.swt.SWT;
17 import org.eclipse.swt.events.SelectionAdapter;
18 import org.eclipse.swt.events.SelectionEvent;
19 import org.eclipse.swt.graphics.Color;
20 import org.eclipse.swt.graphics.RGB;
21 import org.eclipse.swt.widgets.Composite;
22 import org.eclipse.swt.widgets.Display;
23 import org.eclipse.swt.widgets.Menu;
24 import org.eclipse.swt.widgets.MenuItem;
25 import org.eclipse.ui.forms.FormColors;
26 import org.eclipse.ui.forms.HyperlinkGroup;
27 import org.eclipse.ui.forms.HyperlinkSettings;
28 import org.eclipse.ui.forms.widgets.FormToolkit;
29 import org.eclipse.ui.forms.widgets.ScrolledForm;
30 import org.eclipse.ui.internal.cheatsheets.CheatSheetPlugin;
31 import org.eclipse.ui.internal.cheatsheets.CheatSheetStopWatch;
32 import org.eclipse.ui.internal.cheatsheets.ICheatSheetResource;
33 import org.eclipse.ui.internal.cheatsheets.Messages;
34 import org.eclipse.ui.internal.cheatsheets.actions.IMenuContributor;
35 import org.eclipse.ui.internal.cheatsheets.data.CheatSheet;
36
37 public class CheatSheetPage extends Page implements IMenuContributor {
38 private Color introColor;
40 private Color activeColor;
41
42 private Color inactiveColor1;
43 private Color inactiveColor2;
44
45 private CheatSheet cheatSheet;
46
47 private ArrayList viewItemList;
48
49 private CheatSheetViewer viewer;
50
51 public CheatSheetPage(CheatSheet cheatSheet, ArrayList viewItemList,
52 CheatSheetViewer cheatSheetViewer) {
53 super();
54 this.cheatSheet = cheatSheet;
55 this.viewItemList = viewItemList;
56 this.viewer = cheatSheetViewer;
57 }
58
59 public void createPart(Composite parent) {
60 CheatSheetStopWatch.startStopWatch("CheatSheetPage.createPart()"); super.createPart(parent);
62 HyperlinkGroup hyperlinkGroup = toolkit.getHyperlinkGroup();
63 hyperlinkGroup.setHyperlinkUnderlineMode(HyperlinkSettings.UNDERLINE_HOVER);
64
65 CheatSheetStopWatch
66 .printLapTime(
67 "CheatSheetPage.createPart()", "Time in CheatSheetPage.createInfoArea() after super.createInfoArea(): "); IntroItem intro = new IntroItem(this, cheatSheet.getIntroItem(),
69 introColor, viewer);
70 CheatSheetStopWatch
71 .printLapTime(
72 "CheatSheetPage.createPart()", "Time in CheatSheetPage.createInfoArea() after new IntroItem(): ");
74 intro.setBold(true);
75 viewItemList.add(intro);
76
77 CheatSheetStopWatch
78 .printLapTime(
79 "CheatSheetPage.createInfoArea()", "Time in CheatSheetPage.createPart() before add loop: "); ArrayList items = cheatSheet.getItems();
83 for (int i = 0; i < items.size(); i++) {
84 Color color = (i % 2) == 0 ? getInactiveColor1() : getInactiveColor2();
85
86 CoreItem coreItem = new CoreItem(this,
87 (org.eclipse.ui.internal.cheatsheets.data.Item) items
88 .get(i), color, viewer);
89 viewItemList.add(coreItem);
90 }
91 CheatSheetStopWatch
92 .printLapTime(
93 "CheatSheetPage.createInfoArea()", "Time in CheatSheetPage.createPart(): "); }
95
96 private Color getInactiveColor2() {
97 return inactiveColor2;
98 }
99
100 private Color getInactiveColor1() {
101 return inactiveColor1;
102 }
103
104
111 protected String getTitle() {
112 if (cheatSheet != null && cheatSheet.getTitle() != null)
113 return cheatSheet.getTitle();
114 return ICheatSheetResource.EMPTY_STRING;
115 }
116
117 public void dispose() {
118 super.dispose();
119
120 if (getInactiveColor1() != null)
121 getInactiveColor1().dispose();
122 if (getInactiveColor2() != null)
123 getInactiveColor2().dispose();
124
125 if (activeColor != null)
126 activeColor.dispose();
127
128 if (introColor != null)
129 introColor.dispose();
130 inactiveColor1 = null;
131 inactiveColor2 = null;
132 activeColor = null;
133 introColor = null;
134 }
135
136 protected void init(Display display) {
137 super.init(display);
138 computeColors(display);
139 }
140
141 private void computeColors(Display display) {
142 RGB rgb;
143 RGB white = new RGB(255, 255, 255);
144 RGB black = new RGB(0, 0, 0);
145
146 if (isReverseVideo()) {
147 computeReverseVideoColors(display);
148 return;
149 }
150
151 if (toolkit.getColors().isWhiteBackground()) {
152 rgb = toolkit.getColors().getSystemColor(SWT.COLOR_LIST_SELECTION);
153 rgb = FormColors.blend(rgb, white, 20);
155 if (FormColors.testTwoPrimaryColors(rgb, 245, 256)) {
157 rgb = FormColors.blend(rgb, black, 80);
159 } else if (FormColors.testAnyPrimaryColor(rgb, 170, 191)) {
160 rgb = FormColors.blend(rgb, white, 85);
162 } else if (FormColors.testAnyPrimaryColor(rgb, 190, 215)) {
163 rgb = FormColors.blend(rgb, white, 90);
165 }
166 if (Math.abs(rgb.blue-rgb.green) <5 &&
168 Math.abs(rgb.blue-rgb.red)<5 &&
169 Math.abs(rgb.green-rgb.red)<5) {
170 rgb = FormColors.blend(rgb, new RGB(100, 100, 255), 90);
172 }
173 introColor = new Color(display, rgb);
174 inactiveColor2 = new Color(display, rgb);
175 } else {
176 rgb = toolkit.getColors().getSystemColor(SWT.COLOR_LIST_SELECTION);
178 rgb = FormColors.blend(rgb, white, 30);
180 if (FormColors.testTwoPrimaryColors(rgb, 200, 221))
183 rgb = FormColors.blend(rgb, black, 80);
184 else if (FormColors.testTwoPrimaryColors(rgb, 222, 241))
187 rgb = FormColors.blend(rgb, black, 60);
188 else if (FormColors.testTwoPrimaryColors(rgb, 240, 256))
191 rgb = FormColors.blend(rgb, black, 30);
192 introColor = new Color(display, rgb);
193 inactiveColor2 = new Color(display, rgb);
194 }
195 rgb = inactiveColor2.getRGB();
196 rgb = FormColors.blend(rgb, backgroundColor.getRGB(), 40);
197 inactiveColor1 = new Color(display, rgb);
198 activeColor = new Color(display, backgroundColor.getRGB());
199 }
200
201 private void computeReverseVideoColors(Display display) {
202 Color background = toolkit.getColors().getBackground();
203 RGB white = new RGB(255, 255, 255);
204 RGB rgb = background.getRGB();
206 activeColor = new Color(display, rgb );
207 rgb = FormColors.blend(rgb, white, 85);
208 inactiveColor1 = new Color(display, rgb);
209 rgb = FormColors.blend(rgb, white, 85);
210 inactiveColor2 = new Color(display, rgb );
211 introColor = new Color(display, rgb );
212 }
213
214 private boolean isReverseVideo() {
215 Color bg = toolkit.getColors().getBackground();
216 return ((bg.getBlue() + bg.getRed() + bg.getGreen()) < 380);
217 }
218
219 public void initialized() {
220 for (Iterator iter = viewItemList.iterator(); iter.hasNext();) {
221 ViewItem item = (ViewItem) iter.next();
222 item.initialized();
223 }
224 }
225
226 public Color getActiveColor() {
227 return activeColor;
228 }
229
230 public ScrolledForm getForm() {
231 return form;
232 }
233
234 public FormToolkit getToolkit() {
235 return toolkit;
236 }
237
238 private int contributeRestartItem(Menu menu, int index) {
239 MenuItem item = new MenuItem(menu, SWT.PUSH, index++);
240 item.setText(Messages.RESTART_MENU);
241 item.setImage(CheatSheetPlugin.getPlugin().getImage(ICheatSheetResource.CHEATSHEET_RETURN));
242
243 item.addSelectionListener(new SelectionAdapter() {
244 public void widgetSelected(SelectionEvent e) {
245 viewer.restart();
246 }
247 });
248 return index;
249 }
250
251 public int contributeToViewMenu(Menu menu, int index) {
252 return contributeRestartItem(menu, index);
253 }
254 }
255 |
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