FilePicker.cc

/*===========================================================================*\
*                                                                            *
*                              OpenFlipper                                   *
 *           Copyright (c) 2001-2015, RWTH-Aachen University                 *
 *           Department of Computer Graphics and Multimedia                  *
 *                          All rights reserved.                             *
 *                            www.openflipper.org                            *
 *                                                                           *
 *---------------------------------------------------------------------------*
 * This file is part of OpenFlipper.                                         *
 *---------------------------------------------------------------------------*
 *                                                                           *
 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
 *                                                                           *
 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
 *                                                                           *
 * 2. Redistributions in binary form must reproduce the above copyright      *
 *    notice, this list of conditions and the following disclaimer in the    *
 *    documentation and/or other materials provided with the distribution.   *
 *                                                                           *
 * 3. Neither the name of the copyright holder nor the names of its          *
 *    contributors may be used to endorse or promote products derived from   *
 *    this software without specific prior written permission.               *
 *                                                                           *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A           *
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  *
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,       *
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR        *
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    *
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING      *
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS        *
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.              *
*                                                                            *
\*===========================================================================*/
 
#include "FilePicker.hh"
 
#include <QHBoxLayout>
#include <QMessageBox>
 
FilePicker::FilePicker(QWidget *parent) :
    QWidget(parent),
    textBox_(new QComboBox),
    browseButton_(new QPushButton(tr("Browse..."))),
    recent_files_ini_key_("GenericFilePickerRecents"),
    dialog_type_(DT_OPEN_FILE),
    overwrite_confirmed_by_user_(false) {
 
    init();
}
 
FilePicker::FilePicker(const QString& recent_files_ini_key,
                           DialogType dialog_type,
                           QWidget *parent)  :
    QWidget(parent),
    textBox_(new QComboBox),
    browseButton_(new QPushButton(tr("Browse..."))),
    recent_files_ini_key_(recent_files_ini_key),
    dialog_type_(dialog_type),
    overwrite_confirmed_by_user_(false) {
 
    init();
}
 
void FilePicker::init() {
    /*
     * Do layout stuff.
     */
    textBox_->setSizePolicy(QSizePolicy::MinimumExpanding,
                            textBox_->sizePolicy().verticalPolicy());
    textBox_->setEditable(true);
    textBox_->setSizeAdjustPolicy(QComboBox::AdjustToContents);
 
    QHBoxLayout *layout = new QHBoxLayout(this);
    layout->setContentsMargins(0, 0, 0, 0);
    layout->addWidget(textBox_);
    layout->addWidget(browseButton_);
 
    /*
     * Do functional stuff.
     */
    textBox_->insertItems(
            0,
            OpenFlipper::Options::getRecentItems(recent_files_ini_key()));
    connect(browseButton_, SIGNAL( clicked() ), this, SLOT( slot_browse() ));
    //editTextChanged(const QString &);
    connect(textBox_, SIGNAL( editTextChanged(const QString &) ),
            this, SLOT( path_changed() ));
}
 
void FilePicker::set_recent_files_ini_key(const QString& value) {
    recent_files_ini_key_ = value;
    textBox_->clear();
    textBox_->insertItems(
            0,
            OpenFlipper::Options::getRecentItems(recent_files_ini_key_));
}
 
void FilePicker::path_changed() {
    overwrite_confirmed_by_user_ = false;
}
 
bool FilePicker::confirm_overwrite_if_necessary() {
    if (overwrite_confirmed_by_user()) return true;
    if (dialog_type() != DT_SAVE_FILE) return true;
    if (!QFile::exists(currentFileName())) return true;
 
    const QString file_name = QFileInfo(currentFileName()).fileName();
    const QMessageBox::StandardButton result =
            QMessageBox::question(
                    this, tr("Overwrite File?"),
                    tr("The file \"%1\" exists. "
                            "Do you want to overwrite?")
                            .arg(file_name),
                    QMessageBox::Yes | QMessageBox::No,
                    QMessageBox::Yes);
 
    if (result == QMessageBox::Yes) {
        overwrite_confirmed_by_user_ = true;
        return true;
    } else {
        return false;
    }
}
 
void FilePicker::slot_browse() {
    OpenFlipper::Options::obtainPathName(
            textBox_,
            dialog_title().toUtf8().constData(),
            file_filter().toUtf8().constData(),
            recent_files_ini_key().toUtf8().constData(),
            static_cast<OpenFlipper::Options::DialogType>(dialog_type()));
 
    std::cout << "overwrite confirmed." << std::endl;
    overwrite_confirmed_by_user_ = true;
}
 
FilePicker::~FilePicker() {
}