rssguard/src/librssguard/miscellaneous/iconfactory.cpp
2020-04-17 08:14:13 +02:00

125 lines
4.2 KiB
C++
Executable file

// For license of this file, see <project-root-folder>/LICENSE.md.
#include "miscellaneous/iconfactory.h"
#include "miscellaneous/settings.h"
#include <QBuffer>
IconFactory::IconFactory(QObject* parent) : QObject(parent) {}
IconFactory::~IconFactory() {
qDebug("Destroying IconFactory instance.");
}
QIcon IconFactory::fromByteArray(QByteArray array) {
array = QByteArray::fromBase64(array);
QIcon icon;
QBuffer buffer(&array);
buffer.open(QIODevice::ReadOnly);
QDataStream in(&buffer);
in.setVersion(QDataStream::Qt_4_7);
in >> icon;
buffer.close();
return icon;
}
QByteArray IconFactory::toByteArray(const QIcon& icon) {
QByteArray array;
QBuffer buffer(&array);
buffer.open(QIODevice::WriteOnly);
QDataStream out(&buffer);
out.setVersion(QDataStream::Qt_4_7);
out << icon;
buffer.close();
return array.toBase64();
}
QIcon IconFactory::fromTheme(const QString& name) {
return QIcon::fromTheme(name);
}
QPixmap IconFactory::miscPixmap(const QString& name) {
return QPixmap(QString(APP_THEME_PATH) + QDir::separator() + "misc" + QDir::separator() + name + ".png");
}
QIcon IconFactory::miscIcon(const QString& name) {
return QIcon(QString(APP_THEME_PATH) + QDir::separator() + "misc" + QDir::separator() + name + ".png");
}
void IconFactory::setupSearchPaths() {
QIcon::setThemeSearchPaths(QIcon::themeSearchPaths() << APP_THEME_PATH);
qDebug("Available icon theme paths: %s.",
qPrintable(QIcon::themeSearchPaths()
.replaceInStrings(QRegularExpression(QSL("^|$")), QSL("\'"))
.replaceInStrings(QRegularExpression(QSL("/")), QDir::separator()).join(QSL(", "))));
}
void IconFactory::setCurrentIconTheme(const QString& theme_name) {
qApp->settings()->setValue(GROUP(GUI), GUI::IconTheme, theme_name);
}
void IconFactory::loadCurrentIconTheme() {
const QStringList installed_themes = installedIconThemes();
const QString theme_name_from_settings = qApp->settings()->value(GROUP(GUI), SETTING(GUI::IconTheme)).toString();
if (QIcon::themeName() == theme_name_from_settings) {
qDebug("Icon theme '%s' already loaded.", qPrintable(theme_name_from_settings));
return;
}
// Display list of installed themes.
qDebug("Installed icon themes are: %s.",
qPrintable(QStringList(installed_themes)
.replaceInStrings(QRegularExpression(QSL("^|$")), QSL("\'"))
.replaceInStrings(QRegularExpression(QSL("^\\'$")), QSL("\'\'")).join(QSL(", "))));
if (installed_themes.contains(theme_name_from_settings)) {
// Desired icon theme is installed and can be loaded.
qDebug("Loading icon theme '%s'.", qPrintable(theme_name_from_settings));
QIcon::setThemeName(theme_name_from_settings);
}
else {
// Desired icon theme is not currently available.
// Install "default" icon theme instead.
qWarning("Icon theme '%s' cannot be loaded because it is not installed. No icon theme (or default/system icon theme) is loaded now.",
qPrintable(theme_name_from_settings));
QIcon::setThemeName(APP_NO_THEME);
}
}
QStringList IconFactory::installedIconThemes() const {
QStringList icon_theme_names;
icon_theme_names << APP_NO_THEME; //<< QSL("Faenza");
// Iterate all directories with icon themes.
QStringList icon_themes_paths = QIcon::themeSearchPaths();
QStringList filters_index;
filters_index.append("index.theme");
icon_themes_paths.removeDuplicates();
foreach (const QString& icon_path, icon_themes_paths) {
const QDir icon_dir(icon_path);
// Iterate all icon themes in this directory.
foreach (const QFileInfo& icon_theme_path, icon_dir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot |
QDir::Readable | QDir::CaseSensitive |
QDir::NoSymLinks,
QDir::Time)) {
QDir icon_theme_dir = QDir(icon_theme_path.absoluteFilePath());
if (icon_theme_dir.exists(filters_index.at(0))) {
icon_theme_names << icon_theme_dir.dirName();
}
}
}
icon_theme_names.removeDuplicates();
return icon_theme_names;
}