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common.cpp
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318 lines (275 loc) · 7.76 KB
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/*
* KDiff3 - Text Diff And Merge Tool
* SPDX-FileCopyrightText: 2002-2011 Joachim Eibl, joachim.eibl at gmx.de
* SPDX-FileCopyrightText: 2018-2020 Michael Reeves reeves.87@gmail.com
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "common.h"
#include "TypeUtils.h"
#include <map>
#include <utility> // for pair
#include <QColor>
#include <QFont>
#include <QPoint>
#include <QLatin1String>
#include <QSize>
#include <QStringList>
#include <QStringLiteral>
#include <QTextStream>
ValueMap::ValueMap() = default;
ValueMap::~ValueMap() = default;
void ValueMap::save(QTextStream& ts)
{
for(const auto &entry: m_map)
{
const QString key = entry.first;
const QString val = entry.second;
ts << key << "=" << val << "\n";
}
}
QString ValueMap::getAsString()
{
QString result;
for(const auto &entry: m_map)
{
const QString key = entry.first;
const QString val = entry.second;
result += key + '=' + val + '\n';
}
return result;
}
void ValueMap::load(QTextStream& ts)
{
while(!ts.atEnd())
{ // until end of file...
QString s = ts.readLine(); // line of text excluding '\n'
QtSizeType pos = s.indexOf('=');
if(pos > 0) // seems not to have a tag
{
QString key = s.left(pos);
QString val = s.mid(pos + 1);
m_map[key] = val;
}
}
}
// safeStringJoin and safeStringSplit allow to convert a stringlist into a string and back
// safely, even if the individual strings in the list contain the separator character.
QString safeStringJoin(const QStringList& sl, char sepChar, char metaChar)
{
// Join the strings in the list, using the separator ','
// If a string contains the separator character, it will be replaced with "\,".
// Any occurrences of "\" (one backslash) will be replaced with "\\" (2 backslashes)
assert(sepChar != metaChar);
QString sep;
sep += sepChar;
QString meta;
meta += metaChar;
QString safeString;
QStringList::const_iterator i;
for(i = sl.begin(); i != sl.end(); ++i)
{
QString s = *i;
s.replace(meta, meta + meta); // "\" -> "\\"
s.replace(sep, meta + sep); // "," -> "\,"
if(i == sl.begin())
safeString = s;
else
safeString += sep + s;
}
return safeString;
}
// Split a string that was joined with safeStringJoin
QStringList safeStringSplit(const QString& s, char sepChar, char metaChar)
{
assert(sepChar != metaChar);
QStringList sl;
// Miniparser
QtSizeType i = 0;
QtSizeType len = s.length();
QString b;
for(i = 0; i < len; ++i)
{
if(i + 1 < len && s[i] == metaChar && s[i + 1] == metaChar)
{
b += metaChar;
++i;
}
else if(i + 1 < len && s[i] == metaChar && s[i + 1] == sepChar)
{
b += sepChar;
++i;
}
else if(s[i] == sepChar) // real separator
{
sl.push_back(b);
b = "";
}
else
{
b += s[i];
}
}
if(!b.isEmpty())
sl.push_back(b);
return sl;
}
void ValueMap::writeEntry(const QString& k, const QFont& v)
{
m_map[k] = v.family() + u8"," + QString::number(v.pointSize()) + u8"," + (v.bold() ? QStringLiteral("bold") : QStringLiteral("normal"));
}
void ValueMap::writeEntry(const QString& k, const QColor& v)
{
m_map[k].setNum(v.red()) + u8"," + QString().setNum(v.green()) + u8"," + QString().setNum(v.blue());
}
void ValueMap::writeEntry(const QString& k, const QSize& v)
{
m_map[k].setNum(v.width()) + u8"," + QString().setNum(v.height());
}
void ValueMap::writeEntry(const QString& k, const QPoint& v)
{
m_map[k].setNum(v.x()) + u8"," + QString().setNum(v.y());
}
void ValueMap::writeEntry(const QString& k, int v)
{
m_map[k].setNum(v);
}
void ValueMap::writeEntry(const QString& k, bool v)
{
m_map[k].setNum(v);
}
void ValueMap::writeEntry(const QString& k, const QString& v)
{
m_map[k] = v;
}
void ValueMap::writeEntry(const QString& k, const char* v)
{
m_map[k] = QLatin1String(v);
}
void ValueMap::writeEntry(const QString& k, const QStringList& v)
{
m_map[k] = safeStringJoin(v);
}
QFont ValueMap::readFontEntry(const QString& k, const QFont* defaultVal)
{
QFont f = *defaultVal;
std::map<QString, QString>::iterator i = m_map.find(k);
if(i != m_map.end())
{
f.setFamily(i->second.split(',')[0]);
f.setPointSize(i->second.split(',')[1].toInt());
f.setBold(i->second.split(',')[2] == "bold");
}
return f;
}
QColor ValueMap::readColorEntry(const QString& k, const QColor* defaultVal)
{
QColor c = *defaultVal;
std::map<QString, QString>::iterator i = m_map.find(k);
if(i != m_map.end())
{
QString s = i->second;
c = QColor(s.split(',')[0].toInt(), s.split(',')[1].toInt(), s.split(',')[2].toInt());
}
return c;
}
QSize ValueMap::readSizeEntry(const QString& k, const QSize* defaultVal)
{
QSize size = defaultVal ? *defaultVal : QSize(600, 400);
std::map<QString, QString>::iterator i = m_map.find(k);
if(i != m_map.end())
{
QString s = i->second;
size = QSize(s.split(',')[0].toInt(), s.split(',')[1].toInt());
}
return size;
}
QPoint ValueMap::readPointEntry(const QString& k, const QPoint* defaultVal)
{
QPoint point = defaultVal ? *defaultVal : QPoint(0, 0);
std::map<QString, QString>::iterator i = m_map.find(k);
if(i != m_map.end())
{
QString s = i->second;
point = QPoint(s.split(',')[0].toInt(), s.split(',')[1].toInt());
}
return point;
}
bool ValueMap::readBoolEntry(const QString& k, bool bDefault)
{
bool b = bDefault;
std::map<QString, QString>::iterator i = m_map.find(k);
if(i != m_map.end())
{
QString s = i->second;
b = (s.split(',')[0].toInt() == 1);
}
return b;
}
int ValueMap::readNumEntry(const QString& k, int iDefault)
{
int ival = iDefault;
std::map<QString, QString>::iterator i = m_map.find(k);
if(i != m_map.end())
{
QString s = i->second;
ival = s.split(',')[0].toInt();
}
return ival;
}
QString ValueMap::readStringEntry(const QString& k, const QString& sDefault)
{
QString sval = sDefault;
std::map<QString, QString>::iterator i = m_map.find(k);
if(i != m_map.end())
{
sval = i->second;
}
return sval;
}
QStringList ValueMap::readListEntry(const QString& k, const QStringList& defaultVal)
{
QStringList strList;
std::map<QString, QString>::iterator i = m_map.find(k);
if(i != m_map.end()) {
strList = safeStringSplit(i->second);
return strList;
}
else
return defaultVal;
}
QString ValueMap::readEntry(const QString& s, const QString& defaultVal)
{
return readStringEntry(s, defaultVal);
}
QString ValueMap::readEntry(const QString& s, const char* defaultVal)
{
return readStringEntry(s, QString::fromLatin1(defaultVal));
}
QFont ValueMap::readEntry(const QString& s, const QFont& defaultVal)
{
return readFontEntry(s, &defaultVal);
}
QColor ValueMap::readEntry(const QString& s, const QColor defaultVal)
{
return readColorEntry(s, &defaultVal);
}
QSize ValueMap::readEntry(const QString& s, const QSize defaultVal)
{
return readSizeEntry(s, &defaultVal);
}
QPoint ValueMap::readEntry(const QString& s, const QPoint defaultVal)
{
return readPointEntry(s, &defaultVal);
}
bool ValueMap::readEntry(const QString& s, bool bDefault)
{
return readBoolEntry(s, bDefault);
}
int ValueMap::readEntry(const QString& s, int iDefault)
{
return readNumEntry(s, iDefault);
}
QStringList ValueMap::readEntry(const QString& s, const QStringList& defaultVal)
{
return readListEntry(s, defaultVal);
}