qt6windows7/examples/widgets/layouts/basiclayouts/dialog.cpp
2023-10-29 23:33:08 +01:00

128 lines
3.5 KiB
C++

// 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]