b5d762ae87
Change c12072c685 fixed a problem
where tab labels would overlap with the icons if the tab became
too small to contain the text. But it did not properly account
for the full area occupied by the icon, because the horizontal
padding is hardcoded to 4 in the mac style, whereas in the
common style (where the icon is drawn) it uses the pixel metric
for this.
In addition, the change only allocated space on the left side,
causing the label to no longer be centered.
Task-number: QTBUG-61235
Change-Id: Ieec4f7044584361f92045addbc8bbd81bd5c9fc7
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@qt.io>
240 lines
9.0 KiB
C++
240 lines
9.0 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2016 The Qt Company Ltd.
|
|
** Contact: https://www.qt.io/licensing/
|
|
**
|
|
** This file is part of the test suite of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:BSD$
|
|
** Commercial License Usage
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
** accordance with the commercial license agreement provided with the
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
|
** and conditions see https://www.qt.io/terms-conditions. For further
|
|
** information use the contact form at https://www.qt.io/contact-us.
|
|
**
|
|
** BSD License Usage
|
|
** Alternatively, you may use this file under the terms of the BSD license
|
|
** as follows:
|
|
**
|
|
** "Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions are
|
|
** met:
|
|
** * Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** * Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in
|
|
** the documentation and/or other materials provided with the
|
|
** distribution.
|
|
** * Neither the name of The Qt Company Ltd nor the names of its
|
|
** contributors may be used to endorse or promote products derived
|
|
** from this software without specific prior written permission.
|
|
**
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#include <QApplication>
|
|
#include <QWidget>
|
|
#include <QStackedWidget>
|
|
#include <QTabBar>
|
|
#include <QLabel>
|
|
#include <QLayout>
|
|
#include <QDesktopWidget>
|
|
#include <QTabWidget>
|
|
#include <QProxyStyle>
|
|
#include <qdebug.h>
|
|
#include "tabbarform.h"
|
|
|
|
class TabBarProxyStyle : public QProxyStyle
|
|
{
|
|
public:
|
|
TabBarProxyStyle() : QProxyStyle(), alignment(Qt::AlignLeft)
|
|
{ }
|
|
|
|
int styleHint(StyleHint hint, const QStyleOption *option = 0,
|
|
const QWidget *widget = 0, QStyleHintReturn *returnData = 0) const
|
|
{
|
|
if (hint == QStyle::SH_TabBar_Alignment)
|
|
return alignment;
|
|
|
|
return QProxyStyle::styleHint(hint, option, widget, returnData);
|
|
}
|
|
|
|
Qt::Alignment alignment;
|
|
};
|
|
|
|
const int TabCount = 5;
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
QApplication app(argc, argv);
|
|
auto *proxyStyle = new TabBarProxyStyle;
|
|
app.setStyle(proxyStyle);
|
|
|
|
QWidget widget;
|
|
QStackedWidget stackedWidget;
|
|
QTabBar tabBar;
|
|
tabBar.setDocumentMode(true);
|
|
tabBar.setTabsClosable(true);
|
|
tabBar.setMovable(true);
|
|
tabBar.setExpanding(false);
|
|
|
|
// top
|
|
tabBar.setShape(QTabBar::RoundedNorth);
|
|
// bottom
|
|
// tabBar.setShape(QTabBar::RoundedSouth);
|
|
// left
|
|
// tabBar.setShape(QTabBar::RoundedWest);
|
|
// right
|
|
// tabBar.setShape(QTabBar::RoundedEast);
|
|
|
|
const auto shortLabel = QStringLiteral("Tab %1");
|
|
const auto longLabel = QStringLiteral("An Extremely Long Tab Label %1");
|
|
|
|
QMap<int, QWidget*> tabs;
|
|
for (int i = 0; i < TabCount; i++) {
|
|
QString tabNumberString = QString::number(i);
|
|
QLabel *label = new QLabel(QStringLiteral("Tab %1 content").arg(tabNumberString));
|
|
tabs[i] = label;
|
|
label->setAlignment(Qt::AlignCenter);
|
|
stackedWidget.addWidget(label);
|
|
tabBar.addTab(shortLabel.arg(tabNumberString));
|
|
}
|
|
|
|
QObject::connect(&tabBar, &QTabBar::tabMoved, [&tabs](int from, int to) {
|
|
QWidget *thisWidget = tabs[from];
|
|
QWidget *thatWidget = tabs[to];
|
|
tabs[from] = thatWidget;
|
|
tabs[to] = thisWidget;
|
|
});
|
|
|
|
QObject::connect(&tabBar, &QTabBar::currentChanged, [&stackedWidget, &tabs](int index) {
|
|
if (index >= 0)
|
|
stackedWidget.setCurrentWidget(tabs[index]);
|
|
});
|
|
|
|
QObject::connect(&tabBar, &QTabBar::tabCloseRequested, [&stackedWidget, &tabBar, &tabs](int index) {
|
|
QWidget *widget = tabs[index];
|
|
tabBar.removeTab(index);
|
|
for (int i = index + 1; i < TabCount; i++)
|
|
tabs[i-1] = tabs[i];
|
|
int currentIndex = tabBar.currentIndex();
|
|
if (currentIndex >= 0)
|
|
stackedWidget.setCurrentWidget(tabs[currentIndex]);
|
|
delete widget;
|
|
});
|
|
|
|
QLayout *layout;
|
|
switch (tabBar.shape()) {
|
|
case QTabBar::RoundedEast:
|
|
case QTabBar::TriangularEast:
|
|
tabBar.setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Expanding);
|
|
layout = new QHBoxLayout(&widget);
|
|
layout->addWidget(&stackedWidget);
|
|
layout->addWidget(&tabBar);
|
|
break;
|
|
case QTabBar::RoundedWest:
|
|
case QTabBar::TriangularWest:
|
|
tabBar.setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Expanding);
|
|
layout = new QHBoxLayout(&widget);
|
|
layout->addWidget(&tabBar);
|
|
layout->addWidget(&stackedWidget);
|
|
break;
|
|
case QTabBar::RoundedNorth:
|
|
case QTabBar::TriangularNorth:
|
|
tabBar.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);
|
|
layout = new QVBoxLayout(&widget);
|
|
layout->addWidget(&tabBar);
|
|
layout->addWidget(&stackedWidget);
|
|
break;
|
|
case QTabBar::RoundedSouth:
|
|
case QTabBar::TriangularSouth:
|
|
tabBar.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);
|
|
layout = new QVBoxLayout(&widget);
|
|
layout->addWidget(&stackedWidget);
|
|
layout->addWidget(&tabBar);
|
|
break;
|
|
}
|
|
|
|
TabBarForm form;
|
|
layout->addWidget(&form);
|
|
layout->setAlignment(&form, Qt::AlignHCenter);
|
|
|
|
form.ui->documentModeButton->setChecked(tabBar.documentMode());
|
|
QObject::connect(form.ui->documentModeButton, &QCheckBox::toggled, [&] {
|
|
tabBar.setDocumentMode(form.ui->documentModeButton->isChecked());
|
|
// QMacStyle (and maybe other styles) requires a re-polish to get the right font
|
|
QApplication::sendEvent(&tabBar, new QEvent(QEvent::ThemeChange));
|
|
});
|
|
|
|
form.ui->movableTabsButton->setChecked(tabBar.isMovable());
|
|
QObject::connect(form.ui->movableTabsButton, &QCheckBox::toggled, [&] {
|
|
tabBar.setMovable(form.ui->movableTabsButton->isChecked());
|
|
tabBar.update();
|
|
});
|
|
|
|
form.ui->closableTabsButton->setChecked(tabBar.tabsClosable());
|
|
QObject::connect(form.ui->closableTabsButton, &QCheckBox::toggled, [&] {
|
|
tabBar.setTabsClosable(form.ui->closableTabsButton->isChecked());
|
|
tabBar.update();
|
|
});
|
|
|
|
form.ui->expandingTabsButton->setChecked(tabBar.expanding());
|
|
QObject::connect(form.ui->expandingTabsButton, &QCheckBox::toggled, [&] {
|
|
tabBar.setExpanding(form.ui->expandingTabsButton->isChecked());
|
|
tabBar.update();
|
|
});
|
|
|
|
form.ui->displayIconButton->setChecked(!tabBar.tabIcon(0).isNull());
|
|
QObject::connect(form.ui->displayIconButton, &QCheckBox::toggled, [&] {
|
|
const auto icon = form.ui->displayIconButton->isChecked() ?
|
|
tabBar.style()->standardIcon(QStyle::SP_ComputerIcon) : QIcon();
|
|
for (int i = 0; i < tabBar.count(); i++)
|
|
tabBar.setTabIcon(i, icon);
|
|
});
|
|
|
|
form.ui->longLabelButton->setChecked(false);
|
|
QObject::connect(form.ui->longLabelButton, &QCheckBox::toggled, [&] {
|
|
const auto &label = form.ui->longLabelButton->isChecked() ? longLabel : shortLabel;
|
|
for (int i = 0; i < tabBar.count(); i++)
|
|
tabBar.setTabText(i, label.arg(i));
|
|
});
|
|
|
|
QObject::connect(form.ui->shapeComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), [&](int index) {
|
|
Q_UNUSED(index);
|
|
// TODO
|
|
});
|
|
|
|
if (proxyStyle->alignment == Qt::AlignLeft)
|
|
form.ui->leftAlignedButton->setChecked(true);
|
|
else if (proxyStyle->alignment == Qt::AlignRight)
|
|
form.ui->rightAlignedButton->setChecked(true);
|
|
else
|
|
form.ui->centeredButton->setChecked(true);
|
|
QObject::connect(form.ui->textAlignmentGroup, QOverload<QAbstractButton *>::of(&QButtonGroup::buttonClicked), [&](QAbstractButton *b) {
|
|
proxyStyle->alignment = b == form.ui->leftAlignedButton ? Qt::AlignLeft :
|
|
b == form.ui->rightAlignedButton ? Qt::AlignRight : Qt::AlignCenter;
|
|
QApplication::sendEvent(&tabBar, new QEvent(QEvent::StyleChange));
|
|
});
|
|
|
|
layout->setMargin(12);
|
|
widget.show();
|
|
|
|
return app.exec();
|
|
}
|