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annotate src/folderselectdialog.cpp @ 99:0cf81afa82c1

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Fix compiler warning about logic error
author Andre Heinecke <andre.heinecke@intevation.de>
date Fri, 18 Nov 2016 11:35:50 +0100
parents c3000fa6ca56
children 7c84242971cb
rev   line source
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1 /* Copyright (C) 2015 by ETH Zürich
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU GPL (v>=2)
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5 * and comes with ABSOLUTELY NO WARRANTY!
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6 * See LICENSE.txt for details.
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7 */
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8 #include "folderselectdialog.h"
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9 #include "constants.h"
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10
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11 #include <QSortFilterProxyModel>
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12 #include <QStandardItemModel>
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13 #include <QTableView>
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14 #include <QVBoxLayout>
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15 #include <QLineEdit>
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16 #include <QLabel>
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17 #include <QApplication>
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18 #include <QStyle>
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19 #include <QFileDialog>
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20 #include <QStandardPaths>
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21 #include <QPushButton>
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22 #include <QHeaderView>
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23 #include <QDebug>
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24 #include <QSettings>
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25 #include <QStringList>
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26 #include <QStandardItem>
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27 #include <QMessageBox>
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28
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29 static ulong ipStringToLong(const QString str) {
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30 QStringList octets = str.split(".");
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31 if (!(octets.size() > 3)) {
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32 qWarning() << "invalid call to str to long";
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33 return 0;
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34 }
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35 ulong s1 = octets.at(0).toLong();
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36 ulong s2 = octets.at(1).toLong();
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37 ulong s3 = octets.at(2).toLong();
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38 ulong s4 = octets.at(3).toLong();
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39
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40 return (s1 << 24) | (s2 << 16) | (s3 << 8) | s4;
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41 }
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42
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43 class IPAwareSortModel : public QSortFilterProxyModel
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44 {
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45 public:
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46 bool lessThan(const QModelIndex &left,
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47 const QModelIndex &right) const
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48 {
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49 QString leftString = sourceModel()->data(left).toString();
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50 QString rightString = sourceModel()->data(right).toString();
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51
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52 static QRegExp ipPattern("\\b\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\b");
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53 if (ipPattern.indexIn(leftString) != -1 && ipPattern.indexIn(rightString) != -1) {
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54 return ipStringToLong(leftString) > ipStringToLong(rightString);
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55 } else {
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56 return QSortFilterProxyModel::lessThan(left, right);
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57 }
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58 }
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59 };
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60
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61 FolderSelectDialog::FolderSelectDialog(const QString& startFolder,
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62 const QString& folderPattern,
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63 const QString& pathLabel,
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64 QWidget * parent,
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65 Qt::WindowFlags f) :
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66 QDialog(parent, f),
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67 mCurFolder(startFolder),
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68 mFolderPattern(folderPattern),
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69 mPathLabelString(pathLabel),
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70 mPathLabel(NULL),
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71 mPathLineEdit(NULL)
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72 {
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73 mSortModel = new IPAwareSortModel();
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74 mModel = new QStandardItemModel();
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75 mShowPathSelection = !pathLabel.isEmpty();
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76 setupGUI();
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77 if (mShowPathSelection) {
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78 mPathLabel->setText("<b>" + pathLabel + ":</b> ");
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79 }
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80 setFolder(mCurFolder);
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81 #ifndef Q_OS_WIN
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82 QIcon windowIcon = QIcon(":/icon-64.png");
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83 setWindowIcon(windowIcon);
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84 #endif
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85 }
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86
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87 void FolderSelectDialog::setupGUI() {
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88 QVBoxLayout *base = new QVBoxLayout;
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89 QHBoxLayout *folderChangeArea = new QHBoxLayout;
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90
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91 if (mShowPathSelection) {
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92 mPathLabel = new QLabel;
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93 folderChangeArea->addWidget(mPathLabel);
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94 base->addLayout(folderChangeArea);
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95
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96 QPushButton *folderSelect = new QPushButton();
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97 folderSelect->setToolTip(tr("Select folder"));
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98 folderSelect->setIcon(QApplication::style()->standardIcon(QStyle::SP_DirIcon));
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99 connect(folderSelect, &QPushButton::clicked, this,
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100 &FolderSelectDialog::changeFolderClicked);
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101 folderChangeArea->addWidget(folderSelect);
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102
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103 mPathLineEdit = new QLineEdit;
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104 mPathLineEdit->setClearButtonEnabled(true);
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105 connect(mPathLineEdit, &QLineEdit::textChanged, this,
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106 &FolderSelectDialog::pathLineChanged);
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107 folderChangeArea->addWidget(mPathLineEdit);
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108
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109 mGoButton = new QPushButton(tr("Go"));
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110 mGoButton->setEnabled(false);
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111
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112 QPushButton *backBtn = new QPushButton;
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113 backBtn->setIcon(QApplication::style()->standardIcon(QStyle::SP_ArrowBack));
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114 backBtn->setToolTip(tr("Back to exam selection."));
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115
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116 folderChangeArea->addWidget(mGoButton);
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117 connect(mGoButton, &QPushButton::clicked, this,
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118 &FolderSelectDialog::goClicked);
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119 connect(mPathLineEdit, &QLineEdit::returnPressed, this,
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120 &FolderSelectDialog::goClicked);
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121 }
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122
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123 mFilterWidget = new FilterWidget(mSortModel, false);
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124 base->addWidget(mFilterWidget);
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125 connect(mSortModel, &QSortFilterProxyModel::sourceModelChanged,
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126 mFilterWidget, &FilterWidget::headersChanged);
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127
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128 mView = new QTableView;
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129 mView->setModel(mSortModel);
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130
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131 mView->setSelectionBehavior(QAbstractItemView::SelectRows);
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132 mView->setSelectionMode(QAbstractItemView::SingleSelection);
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133 mView->setSortingEnabled(true);
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134 mView->setEditTriggers(QAbstractItemView::NoEditTriggers);
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135 connect(mView->selectionModel(), &QItemSelectionModel::selectionChanged,
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136 this, &FolderSelectDialog::selectionChanged);
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137 connect(mView, &QTableView::doubleClicked, this,
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138 &FolderSelectDialog::wantToAccept);
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139
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140 base->addWidget(mView);
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141
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142 QHBoxLayout * bottomButtons = new QHBoxLayout;
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143 base->addLayout(bottomButtons);
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144
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145 mOkButton = new QPushButton(tr("Ok"));
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146 mOkButton->setEnabled(false);
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147 connect(mOkButton, &QPushButton::clicked, this,
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148 &FolderSelectDialog::wantToAccept);
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149 bottomButtons->addStretch(-1);
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150
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151 QPushButton *backBtn = NULL;
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152 if (!mShowPathSelection) {
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153 backBtn = new QPushButton(tr("Back"));
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154 backBtn->setToolTip(tr("Back to exam selection."));
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155 connect(backBtn, &QPushButton::clicked, this,
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156 &FolderSelectDialog::backClicked);
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157 bottomButtons->addWidget(backBtn);
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158 }
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159
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160 bottomButtons->addWidget(mOkButton);
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161 setLayout(base);
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162 }
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163
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164 void FolderSelectDialog::selectionChanged (const QItemSelection& selected,
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165 const QItemSelection& deselected) {
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166 mOkButton->setEnabled(!selected.indexes().isEmpty());
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167 if (mOkButton->isEnabled()) {
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168 mOkButton->setFocus();
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169 }
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170 }
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171
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172 void FolderSelectDialog::pathLineChanged() {
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173 const QString path = mPathLineEdit->text();
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174 if (path.isEmpty()) {
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175 mGoButton->setEnabled(false);
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176 return;
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177 }
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178 mGoButton->setEnabled(true);
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179 }
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180
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181
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182 void FolderSelectDialog::goClicked() {
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183 const QString path = mPathLineEdit->text();
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184 QDir dir(path);
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185 if (!dir.exists()) {
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186 QMessageBox::warning(this, tr("Error!"), tr("Failed to access directory: '%1'").arg(path));
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187 mGoButton->setEnabled(false);
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188 return;
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189 }
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190 setFolder(mPathLineEdit->text());
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191 QSettings settings;
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192 /* assuming go is only available in root folder mode */
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193 settings.setValue(ROOT_FOLDER_KEY, mPathLineEdit->text());
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194 }
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195
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196 void FolderSelectDialog::setFolder(const QString& folder) {
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197 if (folder.isEmpty()) {
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198 return;
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199 }
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200 mCurFolder = folder;
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201 if (mPathLineEdit) {
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202 mPathLineEdit->setText(mCurFolder);
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203 }
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204
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205 QStringList columns = mFolderPattern.split(PATTERN_SEPERATOR);
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206 mModel->clear();
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207 mModel->setHorizontalHeaderLabels(columns);
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208 QDir dir(folder);
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209 qDebug() << "Folder set to: " << folder;
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210 QStringList errors;
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211 foreach (const QString & subfolder, dir.entryList(QDir::Dirs |
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212 QDir::Readable |
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213 QDir::NoDotAndDotDot)) {
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214 qDebug() << "Looking at: " << subfolder;
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215 QStringList itemData = subfolder.split(PATTERN_SEPERATOR);
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216 if (itemData.size() != columns.size()) {
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217 errors << subfolder;
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218 continue;
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219 }
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220 QList<QStandardItem*> items;
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221 foreach (const QString& part, itemData) {
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222 QStandardItem * item = new QStandardItem(part);
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223 item->setData(dir.absoluteFilePath(subfolder));
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224 items.append(item);
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225 }
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226 mModel->appendRow(items);
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227 }
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228 mSortModel->setSourceModel(mModel);
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229 if (!errors.isEmpty()) {
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230 QString errMsg = tr("The following folders did not match the pattern: %1").arg(mFolderPattern);
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231 errMsg += "\n" + errors.join("\n");
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232 QMessageBox::warning(this, tr("Failed to parse some folders."), errMsg);
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233 }
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234 mView->resizeColumnsToContents();
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235 }
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236
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237 void FolderSelectDialog::wantToAccept() {
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238 QItemSelectionModel *selection = mView->selectionModel();
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239 QModelIndexList selected = selection->selectedIndexes();
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240 if (selected.isEmpty()) { /* Ok should not be enabled in that case */
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241 return;
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242 }
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243 const QString folder = selected[0].data(Qt::UserRole + 1).toString();
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244
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245 emit folderSelected(folder);
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246 accept();
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247 }
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248
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249 void FolderSelectDialog::changeFolderClicked()
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250 {
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251 const QString oldFolder = mCurFolder;
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252 const QString startLoc = mCurFolder.isEmpty() ?
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253 QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation) :
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254 mCurFolder;
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255
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256 QString outFolder = QFileDialog::getExistingDirectory(
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971bd39a6116 German translations
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257 this, tr("Select %1").arg(mPathLabelString),
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258 startLoc);
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259 if (outFolder.isEmpty()) {
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260 /* User aborted */
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261 return;
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262 }
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263 setFolder(outFolder);
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264 }
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