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QtUtil.cpp
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QtUtil.cpp
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#include "QtUtil.h"
#include <QApplication>
#include <QMessageBox>
#include <QStandardPaths>
#include <QDir>
#include <QtWidgets>
#include <QEvent>
QString QtUtil::getRealAppDirPath()
{
QString path = qApp->applicationDirPath();
if (!path.endsWith( QDir::separator()))
path += QDir::separator();
return path;
}
QString QtUtil::getAppsPath()
{
return getRealAppDirPath() + QString("apps");
}
QString QtUtil::getGsPath()
{
return QString("gs");
// code below is no longer used because we modify PATH instead.
//#ifdef _QT_WIN
// return getRealAppDirPath() + QString("apps/gs/gswin32c.exe");
//#endif
// return getRealAppDirPath() + QString("apps/gs");
}
QString QtUtil::getGxpsPath()
{
return QString("gxps");
// code below is no longer used because we modify PATH instead.
//#ifdef _QT_WIN
// return getRealAppDirPath() + QString("apps/gxps/gxps.exe");
//#endif
// return getRealAppDirPath() + QString("apps/gxps");
}
// temp folder stuff
static bool tempDone = false;
static QString tempFolderPath("");
QString QtUtil::getTempFolderPath()
{
// create the temp path
if (!tempDone)
{
tempDone = true;
tempFolderPath = QStandardPaths::writableLocation(QStandardPaths::TempLocation);
tempFolderPath += "/";
tempFolderPath += "gsview/";
// create the folder.
QDir dir(tempFolderPath);
if (!dir.exists())
dir.mkpath(".");
}
return tempFolderPath;
}
QString QtUtil::eventTypeName(QEvent *event)
{
static int eventEnumIndex = QEvent::staticMetaObject.indexOfEnumerator("Type");
QString name = QEvent::staticMetaObject.enumerator(eventEnumIndex).valueToKey(event->type());
return name;
}
QString QtUtil::extensionFromPath(QString path)
{
QFileInfo fileInfo (path);
return fileInfo.suffix().toLower();
}
QString QtUtil::extensionFromFilter(QString filter)
{
int start = 0;
int end = filter.length()-1;
for (int i=0;i<filter.length();i++)
{
if (filter.at(i) == QChar('*'))
start = i+2;
if (filter.at(i) == QChar(')'))
{
end = i-1;
break;
}
}
return filter.mid(start,end-start+1).toLower();
}
QRect QtUtil::mapToGlobal ( QWidget *widget, QRect r)
{
QPoint tl = widget->mapToGlobal(r.topLeft());
QPoint br = widget->mapToGlobal(r.bottomRight());
QRect r2(tl, br);
return r2;
}
QRect QtUtil::mapFromGlobal ( QWidget*widget, QRect r)
{
QPoint tl = widget->mapFromGlobal(r.topLeft());
QPoint br = widget->mapFromGlobal(r.bottomRight());
QRect r2(tl, br);
return r2;
}
static const QString key("RecentFilesList");
static const QString separator("|");
QStringList QtUtil::getRecentFileList()
{
// get the list
QSettings settings;
QString recent = settings.value(key,"").toString();
QStringList recentFilePaths;
if (recent.length()>0)
recentFilePaths = recent.split(separator);
return recentFilePaths;
}
void QtUtil::setRecentFileList (QStringList list)
{
QString recent = list.join(separator);
QSettings settings;
settings.setValue(key,recent);
}
void QtUtil::addRecentFile(QString path)
{
// get the current list
QStringList recentList = getRecentFileList();
// remove this path if it's already on the list
int i = recentList.indexOf(path);
if (i >= 0)
recentList.removeAt(i);
// add it at the front
recentList.insert(0,path);
// enforce the limit
while (recentList.length() > maxRecentFiles)
recentList.removeLast();
// save
setRecentFileList(recentList);
}
void QtUtil::removeRecentFile(QString path)
{
// get the current list
QStringList recentList = getRecentFileList();
// remove
int i = recentList.indexOf(path);
if (i >= 0)
recentList.removeAt(i);
// save
setRecentFileList(recentList);
}
QString QtUtil::getLastOpenFileDir()
{
// get the last-visited directory. Default is desktop
QSettings settings;
const QStringList desktopLocations = QStandardPaths::standardLocations(QStandardPaths::DesktopLocation);
QString lastDir = settings.value("LastOpenFileDir", desktopLocations.first()).toString();
// if the location does not exist (maybe it was deleted/moved),
// fall back to the desktop
QFile *f = new QFile(lastDir);
if (!f->exists())
lastDir = desktopLocations.first();
return lastDir;
}
void QtUtil::setLastOpenFileDir(QString val)
{
}