qt 6.5.1 original

examples/widgets/tools/treemodelcompleter/CMakeLists.txt

@@ -0,0 +1,50 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(treemodelcompleter LANGUAGES CXX)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/tools/treemodelcompleter")
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+
+qt_standard_project_setup()
+
+qt_add_executable(treemodelcompleter
+    main.cpp
+    mainwindow.cpp mainwindow.h
+    treemodelcompleter.cpp treemodelcompleter.h
+)
+
+set_target_properties(treemodelcompleter PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+
+target_link_libraries(treemodelcompleter PRIVATE
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+)
+
+# Resources:
+set(treemodelcompleter_resource_files
+    "resources/treemodel.txt"
+)
+
+qt_add_resources(treemodelcompleter "treemodelcompleter"
+    PREFIX
+        "/"
+    FILES
+        ${treemodelcompleter_resource_files}
+)
+
+install(TARGETS treemodelcompleter
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)

examples/widgets/tools/treemodelcompleter/main.cpp

@@ -0,0 +1,17 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QApplication>
+#include "mainwindow.h"
+
+//! [0]
+int main(int argc, char *argv[])
+{
+    Q_INIT_RESOURCE(treemodelcompleter);
+
+    QApplication app(argc, argv);
+    MainWindow window;
+    window.show();
+    return app.exec();
+}
+//! [0]

examples/widgets/tools/treemodelcompleter/mainwindow.cpp

@@ -0,0 +1,222 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "mainwindow.h"
+#include "treemodelcompleter.h"
+
+#include <QAbstractProxyModel>
+#include <QAction>
+#include <QApplication>
+#include <QCheckBox>
+#include <QComboBox>
+#include <QFile>
+#include <QGridLayout>
+#include <QHeaderView>
+#include <QLabel>
+#include <QLineEdit>
+#include <QMenuBar>
+#include <QMessageBox>
+#include <QStandardItemModel>
+#include <QStringListModel>
+#include <QTreeView>
+
+//! [0]
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+{
+    createMenu();
+
+    completer = new TreeModelCompleter(this);
+    completer->setModel(modelFromFile(":/resources/treemodel.txt"));
+    completer->setSeparator(QLatin1String("."));
+    QObject::connect(completer, QOverload<const QModelIndex &>::of(&TreeModelCompleter::highlighted),
+                     this, &MainWindow::highlight);
+
+    QWidget *centralWidget = new QWidget;
+
+    QLabel *modelLabel = new QLabel;
+    modelLabel->setText(tr("Tree Model<br>(Double click items to edit)"));
+
+    QLabel *modeLabel = new QLabel;
+    modeLabel->setText(tr("Completion Mode"));
+    modeCombo = new QComboBox;
+    modeCombo->addItem(tr("Inline"));
+    modeCombo->addItem(tr("Filtered Popup"));
+    modeCombo->addItem(tr("Unfiltered Popup"));
+    modeCombo->setCurrentIndex(1);
+
+    QLabel *caseLabel = new QLabel;
+    caseLabel->setText(tr("Case Sensitivity"));
+    caseCombo = new QComboBox;
+    caseCombo->addItem(tr("Case Insensitive"));
+    caseCombo->addItem(tr("Case Sensitive"));
+    caseCombo->setCurrentIndex(0);
+//! [0]
+
+//! [1]
+    QLabel *separatorLabel = new QLabel;
+    separatorLabel->setText(tr("Tree Separator"));
+
+    QLineEdit *separatorLineEdit = new QLineEdit;
+    separatorLineEdit->setText(completer->separator());
+    connect(separatorLineEdit, &QLineEdit::textChanged,
+            completer, &TreeModelCompleter::setSeparator);
+
+    QCheckBox *wrapCheckBox = new QCheckBox;
+    wrapCheckBox->setText(tr("Wrap around completions"));
+    wrapCheckBox->setChecked(completer->wrapAround());
+    connect(wrapCheckBox, &QAbstractButton::clicked, completer, &QCompleter::setWrapAround);
+
+    contentsLabel = new QLabel;
+    contentsLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    connect(separatorLineEdit, &QLineEdit::textChanged,
+            this, &MainWindow::updateContentsLabel);
+
+    treeView = new QTreeView;
+    treeView->setModel(completer->model());
+    treeView->header()->hide();
+    treeView->expandAll();
+//! [1]
+
+//! [2]
+    connect(modeCombo, &QComboBox::activated,
+            this, &MainWindow::changeMode);
+    connect(caseCombo, &QComboBox::activated,
+            this, &MainWindow::changeMode);
+
+    lineEdit = new QLineEdit;
+    lineEdit->setCompleter(completer);
+//! [2]
+
+//! [3]
+    QGridLayout *layout = new QGridLayout;
+    layout->addWidget(modelLabel, 0, 0); layout->addWidget(treeView, 0, 1);
+    layout->addWidget(modeLabel, 1, 0);  layout->addWidget(modeCombo, 1, 1);
+    layout->addWidget(caseLabel, 2, 0);  layout->addWidget(caseCombo, 2, 1);
+    layout->addWidget(separatorLabel, 3, 0); layout->addWidget(separatorLineEdit, 3, 1);
+    layout->addWidget(wrapCheckBox, 4, 0);
+    layout->addWidget(contentsLabel, 5, 0, 1, 2);
+    layout->addWidget(lineEdit, 6, 0, 1, 2);
+    centralWidget->setLayout(layout);
+    setCentralWidget(centralWidget);
+
+    changeCase(caseCombo->currentIndex());
+    changeMode(modeCombo->currentIndex());
+
+    setWindowTitle(tr("Tree Model Completer"));
+    lineEdit->setFocus();
+}
+//! [3]
+
+//! [4]
+void MainWindow::createMenu()
+{
+    QAction *exitAction = new QAction(tr("Exit"), this);
+    QAction *aboutAct = new QAction(tr("About"), this);
+    QAction *aboutQtAct = new QAction(tr("About Qt"), this);
+
+    connect(exitAction, &QAction::triggered, qApp, &QApplication::quit);
+    connect(aboutAct, &QAction::triggered, this, &MainWindow::about);
+    connect(aboutQtAct, &QAction::triggered, qApp, &QApplication::aboutQt);
+
+    QMenu *fileMenu = menuBar()->addMenu(tr("File"));
+    fileMenu->addAction(exitAction);
+
+    QMenu *helpMenu = menuBar()->addMenu(tr("About"));
+    helpMenu->addAction(aboutAct);
+    helpMenu->addAction(aboutQtAct);
+}
+//! [4]
+
+//! [5]
+void MainWindow::changeMode(int index)
+{
+    QCompleter::CompletionMode mode;
+    if (index == 0)
+        mode = QCompleter::InlineCompletion;
+    else if (index == 1)
+        mode = QCompleter::PopupCompletion;
+    else
+        mode = QCompleter::UnfilteredPopupCompletion;
+
+    completer->setCompletionMode(mode);
+}
+//! [5]
+
+QAbstractItemModel *MainWindow::modelFromFile(const QString &fileName)
+{
+    QFile file(fileName);
+    if (!file.open(QFile::ReadOnly))
+        return new QStringListModel(completer);
+
+#ifndef QT_NO_CURSOR
+    QGuiApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
+#endif
+
+    QStandardItemModel *model = new QStandardItemModel(completer);
+    QList<QStandardItem *> parents(10);
+    parents[0] = model->invisibleRootItem();
+
+    QRegularExpression re("^\\s+");
+    while (!file.atEnd()) {
+        const QString line = QString::fromUtf8(file.readLine());
+        const QString trimmedLine = line.trimmed();
+        if (trimmedLine.isEmpty())
+            continue;
+
+        const QRegularExpressionMatch match = re.match(line);
+        int nonws = match.capturedStart();
+        int level = 0;
+        if (nonws == -1) {
+            level = 0;
+        } else {
+            const int capLen = match.capturedLength();
+            level = capLen / 4;
+        }
+
+        if (level + 1 >= parents.size())
+            parents.resize(parents.size() * 2);
+
+        QStandardItem *item = new QStandardItem;
+        item->setText(trimmedLine);
+        parents[level]->appendRow(item);
+        parents[level + 1] = item;
+    }
+
+#ifndef QT_NO_CURSOR
+    QGuiApplication::restoreOverrideCursor();
+#endif
+
+    return model;
+}
+
+void MainWindow::highlight(const QModelIndex &index)
+{
+    QAbstractItemModel *completionModel = completer->completionModel();
+    QAbstractProxyModel *proxy = qobject_cast<QAbstractProxyModel *>(completionModel);
+    if (!proxy)
+        return;
+    QModelIndex sourceIndex = proxy->mapToSource(index);
+    treeView->selectionModel()->select(sourceIndex, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
+    treeView->scrollTo(sourceIndex);
+}
+
+//! [6]
+void MainWindow::about()
+{
+    QMessageBox::about(this, tr("About"), tr("This example demonstrates how "
+        "to use a QCompleter with a custom tree model."));
+}
+//! [6]
+
+//! [7]
+void MainWindow::changeCase(int cs)
+{
+    completer->setCaseSensitivity(cs ? Qt::CaseSensitive : Qt::CaseInsensitive);
+}
+//! [7]
+
+void MainWindow::updateContentsLabel(const QString &sep)
+{
+    contentsLabel->setText(tr("Type path from model above with items at each level separated by a '%1'").arg(sep));
+}

examples/widgets/tools/treemodelcompleter/mainwindow.h

@@ -0,0 +1,49 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QModelIndex>
+
+class TreeModelCompleter;
+QT_BEGIN_NAMESPACE
+class QAbstractItemModel;
+class QComboBox;
+class QLabel;
+class QLineEdit;
+class QTreeView;
+QT_END_NAMESPACE
+
+//! [0]
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    MainWindow(QWidget *parent = nullptr);
+
+private slots:
+    void about();
+    void changeCase(int);
+    void changeMode(int);
+    void highlight(const QModelIndex &index);
+    void updateContentsLabel(const QString &sep);
+//! [0]
+
+//! [1]
+private:
+    void createMenu();
+    QAbstractItemModel *modelFromFile(const QString &fileName);
+
+    QTreeView *treeView = nullptr;
+    QComboBox *caseCombo = nullptr;
+    QComboBox *modeCombo = nullptr;
+    QLabel *contentsLabel = nullptr;
+    TreeModelCompleter *completer = nullptr;
+    QLineEdit *lineEdit = nullptr;
+};
+//! [1]
+
+#endif // MAINWINDOW_H

examples/widgets/tools/treemodelcompleter/resources/treemodel.txt

@@ -0,0 +1,20 @@
+Parent1
+    Child1
+        GrandChild1
+        GrandChild2
+        GrandChild3
+            GrandGrandChild1
+    Child2
+        GrandChild1
+            GrandGrandChild1
+        GrandChild2
+    Child3
+
+Parent2
+    Child1
+        GrandChild1
+    Child2
+    Child3
+        GrandChild1
+        GrandChild2
+

examples/widgets/tools/treemodelcompleter/treemodelcompleter.cpp

@@ -0,0 +1,54 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "treemodelcompleter.h"
+#include <QStringList>
+
+//! [0]
+TreeModelCompleter::TreeModelCompleter(QObject *parent)
+    : QCompleter(parent)
+{
+}
+//! [0]
+
+//! [1]
+TreeModelCompleter::TreeModelCompleter(QAbstractItemModel *model, QObject *parent)
+    : QCompleter(model, parent)
+{
+}
+//! [1]
+
+void TreeModelCompleter::setSeparator(const QString &separator)
+{
+    sep = separator;
+}
+
+//! [2]
+QString TreeModelCompleter::separator() const
+{
+    return sep;
+}
+//! [2]
+
+//! [3]
+QStringList TreeModelCompleter::splitPath(const QString &path) const
+{
+    return (sep.isNull() ? QCompleter::splitPath(path) : path.split(sep));
+}
+//! [3]
+
+//! [4]
+QString TreeModelCompleter::pathFromIndex(const QModelIndex &index) const
+{
+    if (sep.isNull())
+        return QCompleter::pathFromIndex(index);
+
+    // navigate up and accumulate data
+    QStringList dataList;
+    for (QModelIndex i = index; i.isValid(); i = i.parent())
+        dataList.prepend(model()->data(i, completionRole()).toString());
+
+    return dataList.join(sep);
+}
+//! [4]
+

examples/widgets/tools/treemodelcompleter/treemodelcompleter.h

@@ -0,0 +1,33 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef TREEMODELCOMPLETER_H
+#define TREEMODELCOMPLETER_H
+
+#include <QCompleter>
+
+//! [0]
+class TreeModelCompleter : public QCompleter
+{
+    Q_OBJECT
+    Q_PROPERTY(QString separator READ separator WRITE setSeparator)
+
+public:
+    explicit TreeModelCompleter(QObject *parent = nullptr);
+    explicit TreeModelCompleter(QAbstractItemModel *model, QObject *parent = nullptr);
+
+    QString separator() const;
+public slots:
+    void setSeparator(const QString &separator);
+
+protected:
+    QStringList splitPath(const QString &path) const override;
+    QString pathFromIndex(const QModelIndex &index) const override;
+
+private:
+    QString sep;
+};
+//! [0]
+
+#endif // TREEMODELCOMPLETER_H
+

examples/widgets/tools/treemodelcompleter/treemodelcompleter.pro

@@ -0,0 +1,13 @@
+QT += widgets
+requires(qtConfig(completer))
+
+HEADERS   = treemodelcompleter.h \
+            mainwindow.h
+SOURCES   = treemodelcompleter.cpp \
+            main.cpp \
+            mainwindow.cpp
+RESOURCES = treemodelcompleter.qrc
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/widgets/tools/treemodelcompleter
+INSTALLS += target

examples/widgets/tools/treemodelcompleter/treemodelcompleter.qrc

@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="/">
+   <file>resources/treemodel.txt</file>
+</qresource>
+</RCC>