qt 6.5.1 original

examples/widgets/layouts/basiclayouts/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(basiclayouts LANGUAGES CXX)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/layouts/basiclayouts")
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+
+qt_standard_project_setup()
+
+qt_add_executable(basiclayouts
+    dialog.cpp dialog.h
+    main.cpp
+)
+
+set_target_properties(basiclayouts PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+
+target_link_libraries(basiclayouts PRIVATE
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+)
+
+install(TARGETS basiclayouts
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)

examples/widgets/layouts/basiclayouts/basiclayouts.pro

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+QT += widgets
+requires(qtConfig(combobox))
+
+HEADERS     = dialog.h
+SOURCES     = dialog.cpp \
+              main.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/widgets/layouts/basiclayouts
+INSTALLS += target

examples/widgets/layouts/basiclayouts/dialog.cpp

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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QtWidgets>
+
+#include "dialog.h"
+
+//! [0]
+Dialog::Dialog()
+{
+    createMenu();
+    createHorizontalGroupBox();
+    createGridGroupBox();
+    createFormGroupBox();
+//! [0]
+
+//! [1]
+    bigEditor = new QTextEdit;
+    bigEditor->setPlainText(tr("This widget takes up all the remaining space "
+                               "in the top-level layout."));
+
+    buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
+                                     | QDialogButtonBox::Cancel);
+
+    connect(buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept);
+    connect(buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
+//! [1]
+
+//! [2]
+    QVBoxLayout *mainLayout = new QVBoxLayout;
+//! [2] //! [3]
+    mainLayout->setMenuBar(menuBar);
+//! [3] //! [4]
+    mainLayout->addWidget(horizontalGroupBox);
+    mainLayout->addWidget(gridGroupBox);
+    mainLayout->addWidget(formGroupBox);
+    mainLayout->addWidget(bigEditor);
+    mainLayout->addWidget(buttonBox);
+//! [4]
+    QWidget *scrollAreaContent = new QWidget;
+    scrollAreaContent->setLayout(mainLayout);
+
+    QScrollArea *scrollArea = new QScrollArea;
+    scrollArea->setFrameShape(QFrame::NoFrame);
+    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    scrollArea->setWidgetResizable(true);
+    scrollArea->verticalScrollBar()->setStyleSheet("QScrollBar:vertical {width: 20px;}");
+
+    scrollArea->setWidget(scrollAreaContent);
+
+    QVBoxLayout *scrollLayout = new QVBoxLayout;
+    scrollLayout->setContentsMargins(0,0,0,0);
+    scrollLayout->addWidget(scrollArea);
+
+//! [5]
+    setLayout(scrollLayout);
+    setWindowTitle(tr("Basic Layouts"));
+}
+//! [5]
+
+//! [6]
+void Dialog::createMenu()
+{
+    menuBar = new QMenuBar;
+
+    fileMenu = new QMenu(tr("&File"), this);
+    exitAction = fileMenu->addAction(tr("E&xit"));
+    menuBar->addMenu(fileMenu);
+
+    connect(exitAction, &QAction::triggered, this, &QDialog::accept);
+}
+//! [6]
+
+//! [7]
+void Dialog::createHorizontalGroupBox()
+{
+    horizontalGroupBox = new QGroupBox(tr("Horizontal layout"));
+    QHBoxLayout *layout = new QHBoxLayout;
+
+    for (int i = 0; i < NumButtons; ++i) {
+        buttons[i] = new QPushButton(tr("Button %1").arg(i + 1));
+        layout->addWidget(buttons[i]);
+    }
+    horizontalGroupBox->setLayout(layout);
+}
+//! [7]
+
+//! [8]
+void Dialog::createGridGroupBox()
+{
+    gridGroupBox = new QGroupBox(tr("Grid layout"));
+//! [8]
+    QGridLayout *layout = new QGridLayout;
+
+//! [9]
+    for (int i = 0; i < NumGridRows; ++i) {
+        labels[i] = new QLabel(tr("Line %1:").arg(i + 1));
+        lineEdits[i] = new QLineEdit;
+        layout->addWidget(labels[i], i + 1, 0);
+        layout->addWidget(lineEdits[i], i + 1, 1);
+    }
+
+//! [9] //! [10]
+    smallEditor = new QTextEdit;
+    smallEditor->setPlainText(tr("This widget takes up about two thirds of the "
+                                 "grid layout."));
+    layout->addWidget(smallEditor, 0, 2, 4, 1);
+//! [10]
+
+//! [11]
+    layout->setColumnStretch(1, 10);
+    layout->setColumnStretch(2, 20);
+    gridGroupBox->setLayout(layout);
+}
+//! [11]
+
+//! [12]
+void Dialog::createFormGroupBox()
+{
+    formGroupBox = new QGroupBox(tr("Form layout"));
+    QFormLayout *layout = new QFormLayout;
+    layout->addRow(new QLabel(tr("Line 1:")), new QLineEdit);
+    layout->addRow(new QLabel(tr("Line 2, long text:")), new QComboBox);
+    layout->addRow(new QLabel(tr("Line 3:")), new QSpinBox);
+    formGroupBox->setLayout(layout);
+}
+//! [12]

examples/widgets/layouts/basiclayouts/dialog.h

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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef DIALOG_H
+#define DIALOG_H
+
+#include <QDialog>
+
+QT_BEGIN_NAMESPACE
+class QAction;
+class QDialogButtonBox;
+class QGroupBox;
+class QLabel;
+class QLineEdit;
+class QMenu;
+class QMenuBar;
+class QPushButton;
+class QTextEdit;
+QT_END_NAMESPACE
+
+//! [0]
+class Dialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    Dialog();
+
+private:
+    void createMenu();
+    void createHorizontalGroupBox();
+    void createGridGroupBox();
+    void createFormGroupBox();
+
+    enum { NumGridRows = 3, NumButtons = 4 };
+
+    QMenuBar *menuBar;
+    QGroupBox *horizontalGroupBox;
+    QGroupBox *gridGroupBox;
+    QGroupBox *formGroupBox;
+    QTextEdit *smallEditor;
+    QTextEdit *bigEditor;
+    QLabel *labels[NumGridRows];
+    QLineEdit *lineEdits[NumGridRows];
+    QPushButton *buttons[NumButtons];
+    QDialogButtonBox *buttonBox;
+
+    QMenu *fileMenu;
+    QAction *exitAction;
+};
+//! [0]
+
+#endif // DIALOG_H

examples/widgets/layouts/basiclayouts/main.cpp

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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QApplication>
+
+#include "dialog.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    Dialog dialog;
+    dialog.show();
+
+    return app.exec();
+}