findfiledialog.cpp Example File

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#include "assistant.h" #include "findfiledialog.h" #include "textedit.h" #include <QComboBox> #include <QDialogButtonBox> #include <QDir> #include <QFileDialog> #include <QHBoxLayout> #include <QLabel> #include <QPushButton> #include <QToolButton> #include <QTreeWidget> #include <QTreeWidgetItem> FindFileDialog::FindFileDialog(TextEdit *editor, Assistant *assistant) : QDialog(editor) { currentAssistant = assistant; currentEditor = editor; createButtons(); createComboBoxes(); createFilesTree(); createLabels(); createLayout(); directoryComboBox->addItem(QDir::toNativeSeparators(QDir::currentPath())); fileNameComboBox->addItem("*"); findFiles(); setWindowTitle(tr("Find File")); } void FindFileDialog::browse() { QString currentDirectory = directoryComboBox->currentText(); QString newDirectory = QFileDialog::getExistingDirectory(this, tr("Select Directory"), currentDirectory); if (!newDirectory.isEmpty()) { directoryComboBox->addItem(QDir::toNativeSeparators(newDirectory)); directoryComboBox->setCurrentIndex(directoryComboBox->count() - 1); update(); } } void FindFileDialog::help() { currentAssistant->showDocumentation("filedialog.html"); } void FindFileDialog::openFile(QTreeWidgetItem *item) { if (!item) { item = foundFilesTree->currentItem(); if (!item) return; } QString fileName = item->text(0); QString path = directoryComboBox->currentText() + QDir::separator(); currentEditor->setContents(path + fileName); close(); } void FindFileDialog::update() { findFiles(); buttonBox->button(QDialogButtonBox::Open)->setEnabled( foundFilesTree->topLevelItemCount() > 0); } void FindFileDialog::findFiles() { QRegExp filePattern(fileNameComboBox->currentText() + "*"); filePattern.setPatternSyntax(QRegExp::Wildcard); QDir directory(directoryComboBox->currentText()); const QStringList allFiles = directory.entryList(QDir::Files | QDir::NoSymLinks); QStringList matchingFiles; for (const QString &file : allFiles) { if (filePattern.exactMatch(file)) matchingFiles << file; } showFiles(matchingFiles); } void FindFileDialog::showFiles(const QStringList &files) { foundFilesTree->clear(); for (int i = 0; i < files.count(); ++i) { QTreeWidgetItem *item = new QTreeWidgetItem(foundFilesTree); item->setText(0, files[i]); } if (files.count() > 0) foundFilesTree->setCurrentItem(foundFilesTree->topLevelItem(0)); } void FindFileDialog::createButtons() { browseButton = new QToolButton; browseButton->setText(tr("...")); connect(browseButton, SIGNAL(clicked()), this, SLOT(browse())); buttonBox = new QDialogButtonBox(QDialogButtonBox::Open | QDialogButtonBox::Cancel | QDialogButtonBox::Help); connect(buttonBox, SIGNAL(accepted()), this, SLOT(openFile())); connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject())); connect(buttonBox, SIGNAL(helpRequested()), this, SLOT(help())); } void FindFileDialog::createComboBoxes() { directoryComboBox = new QComboBox; fileNameComboBox = new QComboBox; fileNameComboBox->setEditable(true); fileNameComboBox->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred); directoryComboBox->setMinimumContentsLength(30); directoryComboBox->setSizeAdjustPolicy( QComboBox::AdjustToMinimumContentsLength); directoryComboBox->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred); connect(fileNameComboBox, SIGNAL(editTextChanged(QString)), this, SLOT(update())); connect(directoryComboBox, SIGNAL(currentIndexChanged(QString)), this, SLOT(update())); } void FindFileDialog::createFilesTree() { foundFilesTree = new QTreeWidget; foundFilesTree->setColumnCount(1); foundFilesTree->setHeaderLabels(QStringList(tr("Matching Files"))); foundFilesTree->setRootIsDecorated(false); foundFilesTree->setSelectionMode(QAbstractItemView::SingleSelection); connect(foundFilesTree, SIGNAL(itemActivated(QTreeWidgetItem*,int)), this, SLOT(openFile(QTreeWidgetItem*))); } void FindFileDialog::createLabels() { directoryLabel = new QLabel(tr("Search in:")); fileNameLabel = new QLabel(tr("File name (including wildcards):")); } void FindFileDialog::createLayout() { QHBoxLayout *fileLayout = new QHBoxLayout; fileLayout->addWidget(fileNameLabel); fileLayout->addWidget(fileNameComboBox); QHBoxLayout *directoryLayout = new QHBoxLayout; directoryLayout->addWidget(directoryLabel); directoryLayout->addWidget(directoryComboBox); directoryLayout->addWidget(browseButton); QVBoxLayout *mainLayout = new QVBoxLayout; mainLayout->addLayout(fileLayout); mainLayout->addLayout(directoryLayout); mainLayout->addWidget(foundFilesTree); mainLayout->addStretch(); mainLayout->addWidget(buttonBox); setLayout(mainLayout); }

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