1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*******************************************************************************
* Copyright (c) 2008, 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.internal.intro.impl;
import org.eclipse.core.runtime.IProduct;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.preferences.DefaultScope;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.osgi.service.prefs.BackingStoreException;
public class FontSelection {
public static final String VAR_FONT_STYLE = "fontStyle"; //$NON-NLS-1$
public static final String FONT_ABSOLUTE = "absolute"; //$NON-NLS-1$
public static final String FONT_RELATIVE = "relative"; //$NON-NLS-1$
private static final String SCALE_FACTOR = "scaleFactor"; //$NON-NLS-1$
public static final String ATT_SCALABLE = "scalable"; //$NON-NLS-1$
private static final int MIN_HEIGHT = 10;
private static final int MAX_HEIGHT = 16;
/*
* Returns the height in points of the default SWT font
*/
private static int getDefaultFontHeight() {
Font defaultFont = JFaceResources.getDefaultFont();
FontData[] fontData = defaultFont.getFontData();
int height = MIN_HEIGHT;
for (int i=0; i< fontData.length; i++) {
FontData data = fontData[i];
height = Math.max(height, data.getHeight());
}
return Math.min(height, MAX_HEIGHT);
}
public static String generatePageFontStyle() {
int defaultFontHeight = getDefaultFontHeight();
int scale = getScalePercentage();
String result = getFontSizeDeclaration("", defaultFontHeight, 100, scale); //$NON-NLS-1$
result += getFontSizeDeclaration("h1", defaultFontHeight, 200, scale); //$NON-NLS-1$
result += getFontSizeDeclaration("h2", defaultFontHeight, 150, scale); //$NON-NLS-1$
result += getFontSizeDeclaration("h3", defaultFontHeight, 120, scale); //$NON-NLS-1$
result += getFontSizeDeclaration("h4", defaultFontHeight, 100, scale); //$NON-NLS-1$
result += getFontSizeDeclaration("h5", defaultFontHeight, 80, scale); //$NON-NLS-1$
result += getFontSizeDeclaration("h6", defaultFontHeight, 70, scale); //$NON-NLS-1$
return result;
}
public static final int getScalePercentage() {
int scale = Platform.getPreferencesService().getInt(IntroPlugin.PLUGIN_ID, (SCALE_FACTOR), 0, null);
return scale;
}
private static String getFontSizeDeclaration(String element, int baseSize, int percentage, int scale) {
if (scale > 75) scale = 75;
int newSize = (int) ((baseSize * percentage *1.25) / (100 - scale));
return " body " + element + "{ font-size : " + newSize + "px; } "; //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
}
public static void setScalePercentage(int i) {
InstanceScope instanceScope = new InstanceScope();
IEclipsePreferences prefs = instanceScope.getNode(IntroPlugin.PLUGIN_ID);
prefs.putInt(SCALE_FACTOR, i);
try {
prefs.flush();
} catch (BackingStoreException e) {
}
}
// Set the scale factor to it's default
public static void resetScalePercentage() {
InstanceScope instanceScope = new InstanceScope();
IEclipsePreferences iprefs = instanceScope.getNode(IntroPlugin.PLUGIN_ID);
DefaultScope defaultScope = new DefaultScope();
IEclipsePreferences dprefs = defaultScope.getNode(IntroPlugin.PLUGIN_ID);
String defaultScale = dprefs.get(SCALE_FACTOR, "0"); //$NON-NLS-1$
iprefs.put(SCALE_FACTOR, defaultScale);
}
public static String getFontStyle() {
IProduct product = Platform.getProduct();
if (product != null) {
String pid = product.getId();
String style = Platform.getPreferencesService().getString
(IntroPlugin.PLUGIN_ID, pid + "_" +FontSelection.VAR_FONT_STYLE, "", null); //$NON-NLS-1$ //$NON-NLS-2$
if (style.length() > 0) {
return style;
}
style = Platform.getPreferencesService().getString
(IntroPlugin.PLUGIN_ID, (FontSelection.VAR_FONT_STYLE), "", null); //$NON-NLS-1$
if (style.length() > 0) {
return style;
}
}
// Use default for font style if not specified
return FontSelection.FONT_RELATIVE;
}
}
|
