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
|
/*
This file is part of the KDE libraries
SPDX-FileCopyrightText: 2007 Thiago Macieira <thiago@kde.org>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include <kconfiggroup.h>
#include <QColor>
#include <QDebug>
#include <QFont>
#include <kconfiggroup_p.h>
/**
* Try to read a GUI type from config group @p cg at key @p key.
* @p input is the default value and also indicates the type to be read.
* @p output is to be set with the value that has been read.
*
* @returns true if something was handled (even if output was set to clear or default)
* or false if nothing was handled (e.g., Core type)
*/
static bool readEntryGui(const QByteArray &data, const char *key, const QVariant &input, QVariant &output)
{
const auto errString = [&]() {
return QStringLiteral("\"%1\" - conversion from \"%3\" to %2 failed")
.arg(QLatin1String(key), QLatin1String(QVariant::typeToName(input.type())), QLatin1String(data.constData()));
};
// set in case of failure
output = input;
switch (static_cast<QMetaType::Type>(input.type())) {
case QMetaType::QColor: {
if (data.isEmpty() || data == "invalid") {
output = QColor(); // return what was stored
return true;
} else if (data.at(0) == '#') {
QColor col;
col.setNamedColor(QString::fromUtf8(data.constData(), data.length()));
output = col;
return true;
} else if (!data.contains(',')) {
QColor col;
col.setNamedColor(QString::fromUtf8(data.constData(), data.length()));
if (!col.isValid()) {
qCritical() << qPrintable(errString());
}
output = col;
return true;
} else {
const QList<QByteArray> list = data.split(',');
const int count = list.count();
if (count != 3 && count != 4) {
const QString formatError = QStringLiteral(" (wrong format: expected '%1' items, read '%2')");
qCritical() << qPrintable(errString()) << qPrintable(formatError.arg(QStringLiteral("3' or '4")).arg(count));
return true; // return default
}
int temp[4];
// bounds check components
for (int i = 0; i < count; i++) {
bool ok;
const int j = temp[i] = list.at(i).toInt(&ok);
if (!ok) { // failed to convert to int
qCritical() << qPrintable(errString()) << " (integer conversion failed)";
return true; // return default
}
if (j < 0 || j > 255) {
static const char *const components[] = {"red", "green", "blue", "alpha"};
const QString boundsError = QStringLiteral(" (bounds error: %1 component %2)");
qCritical() << qPrintable(errString())
<< qPrintable(boundsError.arg(QLatin1String(components[i])).arg(j < 0 ? QStringLiteral("< 0") : QStringLiteral("> 255")));
return true; // return default
}
}
QColor aColor(temp[0], temp[1], temp[2]);
if (count == 4) {
aColor.setAlpha(temp[3]);
}
if (aColor.isValid()) {
output = aColor;
} else {
qCritical() << qPrintable(errString());
}
return true;
}
}
case QMetaType::QFont: {
QVariant tmp = QString::fromUtf8(data.constData(), data.length());
if (tmp.convert(QMetaType::QFont)) {
output = tmp;
} else {
qCritical() << qPrintable(errString());
}
return true;
}
case QMetaType::QPixmap:
case QMetaType::QImage:
case QMetaType::QBrush:
case QMetaType::QPalette:
case QMetaType::QIcon:
case QMetaType::QRegion:
case QMetaType::QBitmap:
case QMetaType::QCursor:
case QMetaType::QSizePolicy:
case QMetaType::QPen:
// we may want to handle these in the future
default:
break;
}
return false; // not handled
}
/**
* Try to write a GUI type @p prop to config group @p cg at key @p key.
*
* @returns true if something was handled (even if an empty value was written)
* or false if nothing was handled (e.g., Core type)
*/
static bool writeEntryGui(KConfigGroup *cg, const char *key, const QVariant &prop, KConfigGroup::WriteConfigFlags pFlags)
{
switch (static_cast<QMetaType::Type>(prop.type())) {
case QMetaType::QColor: {
const QColor rColor = prop.value<QColor>();
if (!rColor.isValid()) {
cg->writeEntry(key, "invalid", pFlags);
return true;
}
QList<int> list;
list.insert(0, rColor.red());
list.insert(1, rColor.green());
list.insert(2, rColor.blue());
if (rColor.alpha() != 255) {
list.insert(3, rColor.alpha());
}
cg->writeEntry(key, list, pFlags);
return true;
}
case QMetaType::QFont: {
QFont f = prop.value<QFont>();
// If the styleName property is set for a QFont, using setBold(true) would
// lead to Qt using an "emboldended"/synthetic font style instead of using
// the bold style provided by the font itself; the latter looks much better
// than the former. For more details see:
// https://bugreports.qt.io/browse/QTBUG-63792
// https://bugs.kde.org/show_bug.cgi?id=378523
/* clang-format off */
if (f.weight() == QFont::Normal
&& (f.styleName() == QLatin1String("Regular")
|| f.styleName() == QLatin1String("Normal")
|| f.styleName() == QLatin1String("Book")
|| f.styleName() == QLatin1String("Roman"))) { /* clang-format on */
f.setStyleName(QString());
}
cg->writeEntry(key, f.toString().toUtf8(), pFlags);
return true;
}
case QMetaType::QPixmap:
case QMetaType::QImage:
case QMetaType::QBrush:
case QMetaType::QPalette:
case QMetaType::QIcon:
case QMetaType::QRegion:
case QMetaType::QBitmap:
case QMetaType::QCursor:
case QMetaType::QSizePolicy:
case QMetaType::QPen:
// we may want to handle one of these in the future
break;
default:
break;
}
return false;
}
static int initKConfigGroupGui()
{
_kde_internal_KConfigGroupGui.readEntryGui = readEntryGui;
_kde_internal_KConfigGroupGui.writeEntryGui = writeEntryGui;
return 42; // because 42 is nicer than 1 or 0
}
#ifdef Q_CONSTRUCTOR_FUNCTION
Q_CONSTRUCTOR_FUNCTION(initKConfigGroupGui)
#else
static int dummyKConfigGroupGui = initKConfigGroupGui();
#endif
|
