gmic-qt/src/FilterParameters/FolderParameter.cpp

149 lines
3.9 KiB
C++

/** -*- mode: c++ ; c-basic-offset: 2 -*-
*
* @file FolderParameter.cpp
*
* Copyright 2017 Sebastien Fourey
*
* This file is part of G'MIC-Qt, a generic plug-in for raster graphics
* editors, offering hundreds of filters thanks to the underlying G'MIC
* image processing framework.
*
* gmic_qt is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* gmic_qt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with gmic_qt. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "FilterParameters/FolderParameter.h"
#include <QDebug>
#include <QFileDialog>
#include <QFileInfo>
#include <QFontMetrics>
#include <QGridLayout>
#include <QLabel>
#include <QPushButton>
#include <QRegularExpression>
#include <QWidget>
#include "Common.h"
#include "FilterTextTranslator.h"
#include "HtmlTranslator.h"
#include "IconLoader.h"
#include "Settings.h"
namespace GmicQt
{
FolderParameter::FolderParameter(QObject * parent) : AbstractParameter(parent), _label(nullptr), _button(nullptr) {}
FolderParameter::~FolderParameter()
{
delete _label;
delete _button;
}
int FolderParameter::size() const
{
return 1;
}
bool FolderParameter::addTo(QWidget * widget, int row)
{
_grid = dynamic_cast<QGridLayout *>(widget->layout());
Q_ASSERT_X(_grid, __PRETTY_FUNCTION__, "No grid layout in widget");
_row = row;
delete _label;
delete _button;
_button = new QPushButton(widget);
_button->setIcon(IconLoader::load("folder"));
_grid->addWidget(_label = new QLabel(_name, widget), row, 0, 1, 1);
setTextSelectable(_label);
_grid->addWidget(_button, row, 1, 1, 2);
setValue(_value);
connect(_button, &QPushButton::clicked, this, &FolderParameter::onButtonPressed);
return true;
}
QString FolderParameter::value() const
{
return _value;
}
QString FolderParameter::defaultValue() const
{
return _default;
}
void FolderParameter::setValue(const QString & value)
{
_value = value;
if (_value.isEmpty()) {
_value = Settings::FolderParameterDefaultValue;
} else if (!QFileInfo(_value).isDir()) {
_value = QDir::homePath();
}
QDir dir(_value);
QDir abs(dir.absolutePath());
if (_button) {
int width = _button->contentsRect().width() - 10;
QFontMetrics fm(_button->font());
_button->setText(fm.elidedText(abs.dirName(), Qt::ElideRight, width));
}
}
void FolderParameter::reset()
{
setValue(_default);
}
bool FolderParameter::initFromText(const QString & filterName, const char * text, int & textLength)
{
QList<QString> list = parseText("folder", text, textLength);
if (list.isEmpty()) {
return false;
}
_name = HtmlTranslator::html2txt(FilterTextTranslator::translate(list[0], filterName));
QRegularExpression re("^\".*\"$");
if (re.match(list[1]).hasMatch()) {
list[1].chop(1);
list[1].remove(0, 1);
}
if (list[1].isEmpty()) {
_default.clear();
_value = Settings::FolderParameterDefaultValue;
} else {
_default = _value = list[1];
}
return true;
}
bool FolderParameter::isQuoted() const
{
return true;
}
void FolderParameter::onButtonPressed()
{
QString oldValue = _value;
QFileDialog::Options options = Settings::nativeFileDialogs() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
options |= QFileDialog::ShowDirsOnly;
QString path = QFileDialog::getExistingDirectory(dynamic_cast<QWidget *>(parent()), tr("Select a folder"), _value, options);
if (path.isEmpty()) {
setValue(oldValue);
} else {
Settings::FolderParameterDefaultValue = path;
setValue(path);
}
notifyIfRelevant();
}
} // namespace GmicQt