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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/*
* java-gnome, a UI library for writing GTK and GNOME programs from Java!
*
* Copyright © 2008-2010 Operational Dynamics Consulting, Pty Ltd and Others
*
* The code in this file, and the program it is a part of, is made available
* to you by its authors as open source software: you can redistribute it
* and/or modify it under the terms of the GNU General Public License version
* 2 ("GPL") as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GPL for more details.
*
* You should have received a copy of the GPL along with this program. If not,
* see http://www.gnu.org/licenses/. The authors of this program may be
* contacted through http://java-gnome.sourceforge.net/.
*/
package org.gnome.pango;
import java.io.IOException;
import org.freedesktop.cairo.Context;
import org.freedesktop.cairo.Format;
import org.freedesktop.cairo.ImageSurface;
import org.freedesktop.cairo.PdfSurface;
import org.freedesktop.cairo.Surface;
import org.gnome.gdk.Event;
import org.gnome.gdk.EventExpose;
import org.gnome.gtk.Gtk;
import org.gnome.gtk.Image;
import org.gnome.gtk.GraphicalTestCase;
import org.gnome.gtk.Widget;
import org.gnome.gtk.Window;
/**
* @author Andrew Cowie
*/
public class ValidatePangoTextRendering extends GraphicalTestCase
{
private static Layout draw(final Context cr) {
final Layout layout;
cr.setSource(0.1, 0.9, 0.2, 1.0);
cr.moveTo(10, 80);
layout = new Layout(cr);
layout.setText("Hello");
cr.showLayout(layout);
return layout;
}
public final void testPropertyDefaults() {
final Surface surface;
final Context cr;
final Layout layout;
surface = new ImageSurface(Format.ARGB32, 150, 150);
cr = new Context(surface);
layout = draw(cr);
/*
* Initial conditions
*/
assertEquals(0.0, layout.getIndent());
assertEquals(false, layout.getJustify());
assertEquals(0.0, layout.getSpacing());
/*
* Round trips
*/
layout.setIndent(5.0);
assertEquals(5.0, layout.getIndent());
layout.setJustify(true);
assertEquals(true, layout.getJustify());
layout.setJustify(false);
assertEquals(false, layout.getJustify());
layout.setSpacing(3.5);
assertEquals(3.5, layout.getSpacing());
}
/*
* This verifies our having normalized the co-ordinate spaces to Cairo
* units.
*/
public final void testWidthAndHeightNormalization() throws IOException {
Surface surface;
Context cr;
Layout layout;
double units, pixels;
surface = new ImageSurface(Format.ARGB32, 150, 150);
cr = new Context(surface);
layout = draw(cr);
layout.setWidth(60.0);
units = layout.getSizeWidth();
assertEquals(units, layout.getPixelWidth(), 0.001);
/*
* Now test with a Surface whose device units are not integral pixels.
*/
surface = new PdfSurface("tmp/tests/org/gnome/pango/ValidatePangoTextRendering.pdf", 150, 150);
cr = new Context(surface);
layout = draw(cr);
units = layout.getSizeWidth();
pixels = layout.getPixelWidth();
assertTrue(pixels > units);
// something really wide!
layout.setText("Big brother is watching you, though you probably didn't know. In any case, you're not that interesting so really, the shame is on the poor sod who has to stare at the footage all day.");
units = layout.getSizeWidth();
assertTrue(units > 150);
/*
* Does calling setWidth() re-layout the Layout?
*/
layout.setWidth(120);
units = layout.getSizeWidth();
assertTrue(units < 120);
/*
* yes, it does. Impressive.
*/
}
public final void testLineCount() {
final Surface surface;
final Context cr;
final Layout layout;
surface = new ImageSurface(Format.ARGB32, 150, 150);
cr = new Context(surface);
layout = draw(cr);
assertEquals(1, layout.getLineCount());
}
public static void main(String[] args) {
final Window w;
final Image i;
Gtk.init(args);
w = new Window();
i = new Image();
w.add(i);
i.connect(new Widget.ExposeEvent() {
public boolean onExposeEvent(Widget source, EventExpose event) {
final Context cr;
cr = new Context(source.getWindow());
draw(cr);
return false;
}
});
w.connect(new Window.DeleteEvent() {
public boolean onDeleteEvent(Widget source, Event event) {
Gtk.mainQuit();
return false;
}
});
w.showAll();
Gtk.main();
}
public final void testAttributeCreation() {
final FontDescription desc;
Attribute attr;
desc = new FontDescription("Serif, 12");
attr = new FontDescriptionAttribute(desc);
assertNotNull(attr);
}
public final void testAttributeListUse() {
final Attribute attr;
final AttributeList list;
final Surface surface;
final Context cr;
final Layout layout;
surface = new ImageSurface(Format.ARGB32, 150, 150);
cr = new Context(surface);
layout = new Layout(cr);
layout.setText("H€lloWorld");
list = new AttributeList();
/*
* Now set some Attributes.
*/
attr = new StyleAttribute(Style.ITALIC);
attr.setIndices(5, 5);
list.insert(attr);
layout.setAttributes(list);
assertEquals(7, PangoAttribute.getStartIndex(attr));
assertEquals(12, PangoAttribute.getEndIndex(attr));
}
}
|
