127 lines
4.6 KiB
C++
127 lines
4.6 KiB
C++
#include "./qtconfigarguments.h"
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#include <c++utilities/conversion/stringconversion.h>
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#include <QString>
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#include <QLocale>
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#include <QFont>
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#include <QIcon>
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#ifdef GUI_QTWIDGETS
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# include <QApplication>
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# include <QStyleFactory>
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#else
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# include <QGuiApplication>
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#endif
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#include <initializer_list>
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#include <iostream>
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using namespace std;
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namespace ApplicationUtilities {
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/*!
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* \brief Constructs new Qt config arguments.
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*/
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QtConfigArguments::QtConfigArguments() :
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m_qtWidgetsGuiArg("qt-widgets-gui", "g", "shows a Qt widgets based graphical user interface"),
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m_qtQuickGuiArg("qt-quick-gui", "q", "shows a Qt quick based graphical user interface"),
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m_lngArg("lang", "l", "sets the language for the Qt GUI"),
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m_qmlDebuggerArg("qmljsdebugger", "qmljsdebugger", "enables QML debugging (see http://doc.qt.io/qt-5/qtquick-debugging.html)"),
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m_styleArg("style", string(), "sets the Qt widgets style"),
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m_iconThemeArg("icon-theme", string(), "sets the icon theme and additional theme search paths for the Qt GUI"),
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m_fontArg("font", string(), "sets the font family and size (point) for the Qt GUI")
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{
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// language
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m_lngArg.setValueNames({"language"});
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m_lngArg.setRequiredValueCount(1);
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m_lngArg.setRequired(false);
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// qml debugger (handled by Qt, just to let the parser know of it)
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m_qmlDebuggerArg.setValueNames({"port:<port_from>[,port_to][,host:<ip address>][,block]"});
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m_qmlDebuggerArg.setRequiredValueCount(1);
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// appearance
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m_styleArg.setValueNames({"style name"});
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m_styleArg.setRequiredValueCount(1);
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m_iconThemeArg.setValueNames({"theme name", "search path 1", "search path 2"});
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m_iconThemeArg.setRequiredValueCount(-1);
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m_fontArg.setValueNames({"name", "size"});
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m_fontArg.setRequiredValueCount(2);
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m_qtWidgetsGuiArg.setSecondaryArguments({&m_lngArg, &m_qmlDebuggerArg, &m_styleArg, &m_iconThemeArg, &m_fontArg});
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m_qtQuickGuiArg.setSecondaryArguments({&m_lngArg, &m_qmlDebuggerArg, &m_iconThemeArg, &m_fontArg});
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m_qtWidgetsGuiArg.setDenotesOperation(true);
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m_qtQuickGuiArg.setDenotesOperation(true);
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#if defined GUI_QTWIDGETS
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m_qtWidgetsGuiArg.setDefault(true);
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#elif defined GUI_QTQUICK
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m_qtQuickGuiArg.setDefault(true);
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#endif
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}
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/*!
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* \brief Applies the settings from the arguments.
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* \remarks Also checks environment variables for the icon theme.
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*/
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void QtConfigArguments::applySettings() const
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{
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if(m_lngArg.isPresent()) {
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QLocale::setDefault(QLocale(QString::fromLocal8Bit(m_lngArg.values().front().data())));
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}
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if(m_styleArg.isPresent()) {
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#ifdef GUI_QTWIDGETS
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if(QStyle *style = QStyleFactory::create(QString::fromLocal8Bit(m_styleArg.values().front().data()))) {
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QApplication::setStyle(style);
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} else {
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cout << "Warning: Can not find the specified style." << endl;
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}
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#endif
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#ifdef GUI_QTQUICK
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cout << "Warning: Can not set a style for the Qt Quick GUI." << endl;
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#endif
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}
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if(m_iconThemeArg.isPresent()) {
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auto i = m_iconThemeArg.values().cbegin(), end = m_iconThemeArg.values().end();
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if(i != end) {
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QIcon::setThemeName(QString::fromLocal8Bit(i->data()));
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if(++i != end) {
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QStringList searchPaths;
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searchPaths.reserve(m_iconThemeArg.values().size() - 1);
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for(; i != end; ++i) {
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searchPaths << QString::fromLocal8Bit(i->data());
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}
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QIcon::setThemeSearchPaths(searchPaths);
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} else {
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#ifdef Q_OS_WIN32
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QIcon::setThemeSearchPaths(QIcon::themeSearchPaths() << QStringLiteral("../share/icons"));
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#endif
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}
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}
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} else {
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if(qEnvironmentVariableIsSet("ICON_THEME")) {
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QString themeName;
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themeName.append(qgetenv("ICON_THEME"));
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QIcon::setThemeName(themeName);
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}
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if(qEnvironmentVariableIsSet("ICON_THEME_SEARCH_PATH")) {
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QString path;
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path.append(qgetenv("ICON_THEME_SEARCH_PATH"));
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QIcon::setThemeSearchPaths(QStringList() << path);
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}
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}
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if(m_fontArg.isPresent()) {
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QFont font;
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font.setFamily(QString::fromLocal8Bit(m_fontArg.values().front().data()));
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try {
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font.setPointSize(ConversionUtilities::stringToNumber<int>(m_fontArg.values().back()));
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} catch(const ConversionUtilities::ConversionException &) {
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cout << "Warning: The specified font size is no number and will be ignored." << endl;
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}
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QGuiApplication::setFont(font);
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} else {
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#ifdef Q_OS_WIN32
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QGuiApplication::setFont(QFont(QStringLiteral("Segoe UI"), 9));
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#endif
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}
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}
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}
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