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annotate src/folderselectdialog.cpp @ 9:e3c8f61e45a9

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Implement folderselection dialogs
author Andre Heinecke <andre.heinecke@intevation.de>
date Thu, 26 Mar 2015 16:30:18 +0100
parents
children 971bd39a6116
rev   line source
9
e3c8f61e45a9 Implement folderselection dialogs
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1 /* Copyright (C) 2014 by Intevation GmbH
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2 *
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3 * This file is Free Software under the GNU GPL (v>=2)
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4 * and comes with ABSOLUTELY NO WARRANTY!
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5 * See LICENSE.txt for details.
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6 */
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7 #include "folderselectdialog.h"
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8 #include "constants.h"
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9
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10 #include <QSortFilterProxyModel>
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11 #include <QStandardItemModel>
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12 #include <QTableView>
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13 #include <QVBoxLayout>
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14 #include <QLineEdit>
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15 #include <QLabel>
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16 #include <QApplication>
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17 #include <QStyle>
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18 #include <QFileDialog>
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19 #include <QStandardPaths>
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20 #include <QPushButton>
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21 #include <QHeaderView>
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22 #include <QDebug>
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23 #include <QSettings>
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24 #include <QStringList>
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25 #include <QStandardItem>
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26
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27 FolderSelectDialog::FolderSelectDialog(const QString& startFolder,
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28 const QString& folderPattern,
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29 const QString& pathLabel,
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30 QWidget * parent,
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31 Qt::WindowFlags f) :
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32 QDialog(parent, f),
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33 mCurFolder(startFolder),
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34 mFolderPattern(folderPattern),
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35 mPathLabelString(pathLabel),
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36 mPathLabel(NULL),
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37 mPathLineEdit(NULL)
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38 {
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39 mSortModel = new QSortFilterProxyModel();
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40 mModel = new QStandardItemModel();
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41 mShowPathSelection = !pathLabel.isEmpty();
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42 setupGUI();
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43 if (mShowPathSelection) {
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44 mPathLabel->setText("<b>" + pathLabel + ":</b> ");
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45 }
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46 setFolder(mCurFolder);
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47 }
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48
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49 void FolderSelectDialog::setupGUI() {
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50 QVBoxLayout *base = new QVBoxLayout;
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51 QHBoxLayout *folderChangeArea = new QHBoxLayout;
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52
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53 if (mShowPathSelection) {
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54 mPathLabel = new QLabel;
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55 folderChangeArea->addWidget(mPathLabel);
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56 base->addLayout(folderChangeArea);
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57
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58 QPushButton *folderSelect = new QPushButton();
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59 folderSelect->setToolTip(tr("Select folder"));
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60 folderSelect->setIcon(QApplication::style()->standardIcon(QStyle::SP_DirIcon));
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61 connect(folderSelect, &QPushButton::clicked, this,
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62 &FolderSelectDialog::changeFolderClicked);
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63 folderChangeArea->addWidget(folderSelect);
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64
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65 mPathLineEdit = new QLineEdit;
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66 mPathLineEdit->setClearButtonEnabled(true);
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67 connect(mPathLineEdit, &QLineEdit::textChanged, this,
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68 &FolderSelectDialog::pathLineChanged);
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69 folderChangeArea->addWidget(mPathLineEdit);
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70
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71 mGoButton = new QPushButton(tr("Go"));
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72 mGoButton->setEnabled(false);
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73 folderChangeArea->addWidget(mGoButton);
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74 connect(mGoButton, &QPushButton::clicked, this,
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75 &FolderSelectDialog::goClicked);
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76 }
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77
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78 mFilterWidget = new FilterWidget(mSortModel);
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79 base->addWidget(mFilterWidget);
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80
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81 mView = new QTableView;
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82 mView->setModel(mSortModel);
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83
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84 mView->resizeColumnsToContents();
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85 mView->setSelectionBehavior(QAbstractItemView::SelectRows);
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86 mView->setSelectionMode(QAbstractItemView::SingleSelection);
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87 mView->setSortingEnabled(true);
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88 mView->setEditTriggers(QAbstractItemView::NoEditTriggers);
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89 connect(mView->selectionModel(), &QItemSelectionModel::selectionChanged,
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90 this, &FolderSelectDialog::selectionChanged);
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91 connect(mView, &QTableView::doubleClicked, this,
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92 &FolderSelectDialog::wantToAccept);
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93
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94 base->addWidget(mView);
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95
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96 QHBoxLayout * bottomButtons = new QHBoxLayout;
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97 base->addLayout(bottomButtons);
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98
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99 mOkButton = new QPushButton(tr("Ok"));
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100 mOkButton->setEnabled(false);
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101 connect(mOkButton, &QPushButton::clicked, this,
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102 &FolderSelectDialog::wantToAccept);
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103 bottomButtons->addStretch(-1);
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104 bottomButtons->addWidget(mOkButton);
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105 setLayout(base);
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106 }
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107
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108 void FolderSelectDialog::selectionChanged (const QItemSelection& selected,
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109 const QItemSelection& deselected) {
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110 mOkButton->setEnabled(!selected.indexes().isEmpty());
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111 }
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112
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113 void FolderSelectDialog::pathLineChanged() {
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114 const QString path = mPathLineEdit->text();
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115 qDebug() << "path: " << path;
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116 if (path.isEmpty()) {
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117 mGoButton->setEnabled(false);
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118 return;
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119 }
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120 QDir dir(path);
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121 if (dir.exists()) {
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122 mGoButton->setEnabled(true);
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123 return;
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124 }
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125 mGoButton->setEnabled(false);
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126 }
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127
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128
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129 void FolderSelectDialog::goClicked() {
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130 setFolder(mPathLineEdit->text());
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131 QSettings settings;
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132 /* assuming go is only available in root folder mode */
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133 settings.setValue(ROOT_FOLDER_KEY, mPathLineEdit->text());
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134 }
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135
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136 void FolderSelectDialog::setFolder(const QString& folder) {
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137 mCurFolder = folder;
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138 if (mPathLineEdit) {
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139 mPathLineEdit->setText(mCurFolder);
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140 }
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141
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142 QStringList columns = mFolderPattern.split(PATTERN_SEPERATOR);
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143 mModel->clear();
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144 mModel->setHorizontalHeaderLabels(columns);
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145 QDir dir(folder);
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146 qDebug() << "Folder set to: " << folder;
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147 foreach (const QString & subfolder, dir.entryList(QDir::Dirs |
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148 QDir::Readable |
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149 QDir::NoDotAndDotDot)) {
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150 qDebug() << "Looking at: " << subfolder;
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151 QStringList itemData = subfolder.split(PATTERN_SEPERATOR);
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152 if (itemData.size() != columns.size()) {
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153 qDebug() << "Failed to parse: " << subfolder;
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154 continue;
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155 }
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156 QList<QStandardItem*> items;
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157 foreach (const QString& part, itemData) {
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158 QStandardItem * item = new QStandardItem(part);
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159 item->setData(dir.absoluteFilePath(subfolder));
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160 items.append(item);
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161 }
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162 mModel->appendRow(items);
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163 }
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164 mSortModel->setSourceModel(mModel);
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165 }
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166
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167 void FolderSelectDialog::wantToAccept() {
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168 QItemSelectionModel *selection = mView->selectionModel();
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169 QModelIndexList selected = selection->selectedIndexes();
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170 if (selected.isEmpty()) { /* Ok should not be enabled in that case */
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171 return;
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172 }
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173 const QString folder = selected[0].data(Qt::UserRole + 1).toString();
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174
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175 emit folderSelected(folder);
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176 accept();
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177 }
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178
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179 void FolderSelectDialog::changeFolderClicked()
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180 {
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181 const QString oldFolder = mCurFolder;
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182 const QString startLoc = mCurFolder.isEmpty() ?
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183 QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation) :
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184 mCurFolder;
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185
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186 QString outFolder = QFileDialog::getExistingDirectory(
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187 this, tr("Select ") + mPathLabelString,
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188 startLoc);
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189 if (outFolder.isEmpty()) {
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190 /* User aborted */
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191 return;
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192 }
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193 setFolder(outFolder);
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194 }
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