From 42d681f9cfc984046a93b9efe19903d46ac68bb1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Thorbj=C3=B8rn=20Lund=20Martsum?= Date: Mon, 3 Sep 2012 06:35:39 +0200 Subject: Add widget replace function to QLayout Sometimes it is nice to be able to replace a widget in a layout. Change-Id: I23a6a65e417e94d53bc48639503db1a142bc3f10 Reviewed-by: J-P Nurmi --- tests/manual/widgets/kernel/kernel.pro | 2 +- tests/manual/widgets/kernel/layoutreplace/main.cpp | 137 +++++++++++++++++++++ tests/manual/widgets/kernel/layoutreplace/main.pro | 2 + 3 files changed, 140 insertions(+), 1 deletion(-) create mode 100644 tests/manual/widgets/kernel/layoutreplace/main.cpp create mode 100644 tests/manual/widgets/kernel/layoutreplace/main.pro (limited to 'tests/manual/widgets') diff --git a/tests/manual/widgets/kernel/kernel.pro b/tests/manual/widgets/kernel/kernel.pro index 968d71724f..5dbd25f8bd 100644 --- a/tests/manual/widgets/kernel/kernel.pro +++ b/tests/manual/widgets/kernel/kernel.pro @@ -1,2 +1,2 @@ TEMPLATE = subdirs -SUBDIRS = qtooltip sizeonhide +SUBDIRS = qtooltip sizeonhide layoutreplace diff --git a/tests/manual/widgets/kernel/layoutreplace/main.cpp b/tests/manual/widgets/kernel/layoutreplace/main.cpp new file mode 100644 index 0000000000..8cbb2a1a12 --- /dev/null +++ b/tests/manual/widgets/kernel/layoutreplace/main.cpp @@ -0,0 +1,137 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Thorbjørn Martsum - tmartsum[at]gmail.com +** Contact: http://www.qt-project.org/legal +** +** This file is part of the test suite of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include +#include +#include +#include +#include +#include + +class ReplaceButton : public QPushButton +{ + Q_OBJECT +public: + ReplaceButton(const QString &text = QString("click to replace")) : QPushButton(text) + { + static int v = 0; + ++v; + QString txt = QString("click to replace %1").arg(v); + setText(txt); + connect(this, SIGNAL(clicked()), this, SLOT(replace())); + } +protected slots: + void replace() + { + if (!parentWidget()) + return; + static int n = 0; + ++n; + if (parentWidget()->layout()->replaceWidget(this, new QLabel(QString("replaced(%1)").arg(n)))) + deleteLater(); + } +}; + +class StackButtonChange : public QPushButton +{ + Q_OBJECT +public: + StackButtonChange(QStackedLayout *l) : QPushButton("stack wdg change") + { + sl = l; + connect(this, SIGNAL(clicked()), this, SLOT(changeWdg())); + } +protected slots: + void changeWdg() + { + int index = sl->indexOf(sl->currentWidget()); + ++index; + if (index >= sl->count()) + index = 0; + sl->setCurrentWidget(sl->itemAt(index)->widget()); + sl->parentWidget()->update(); + } +protected: + QStackedLayout *sl; +}; + +int main(int argc, char **argv) { + QApplication app(argc, argv); + QWidget wdg1; + QGridLayout *l1 = new QGridLayout(); + l1->addWidget(new ReplaceButton(), 1, 1, 2, 2, Qt::AlignCenter); + l1->addWidget(new ReplaceButton(), 3, 1, 1, 1, Qt::AlignRight); + l1->addWidget(new ReplaceButton(), 1, 3, 1, 1, Qt::AlignLeft); + l1->addWidget(new ReplaceButton(), 2, 3, 1, 1, Qt::AlignLeft); + l1->addWidget(new ReplaceButton(), 3, 2, 1, 1, Qt::AlignRight); + wdg1.setLayout(l1); + wdg1.setWindowTitle("QGridLayout"); + wdg1.setGeometry(100, 100, 100, 100); + wdg1.show(); + + QWidget wdg2; + QFormLayout *l2 = new QFormLayout(); + l2->addRow(QString("Label1"), new ReplaceButton()); + l2->addRow(QString("Label2"), new ReplaceButton()); + l2->addRow(new ReplaceButton(), new ReplaceButton()); + wdg2.setLayout(l2); + wdg2.setWindowTitle("QFormLayout"); + wdg2.setGeometry(100 + wdg1.sizeHint().width() + 5, 100, 100, 100); + wdg2.show(); + + QWidget wdg3; + QBoxLayout *l3 = new QVBoxLayout(); // new QHBoxLayout() + QStackedLayout *sl = new QStackedLayout(); + sl->addWidget(new ReplaceButton()); + sl->addWidget(new ReplaceButton()); + sl->addWidget(new ReplaceButton()); + l3->addLayout(sl); + l3->addWidget(new StackButtonChange(sl)); + l3->addWidget(new ReplaceButton()); + l3->addWidget(new ReplaceButton()); + wdg3.setLayout(l3); + wdg3.setWindowTitle("QStackedLayout + BoxLayout"); + wdg3.setGeometry(100, 100 + wdg1.sizeHint().height() + 30, 100 , 100); + wdg3.show(); + + app.exec(); +} +#include "main.moc" diff --git a/tests/manual/widgets/kernel/layoutreplace/main.pro b/tests/manual/widgets/kernel/layoutreplace/main.pro new file mode 100644 index 0000000000..54c6a4a9fc --- /dev/null +++ b/tests/manual/widgets/kernel/layoutreplace/main.pro @@ -0,0 +1,2 @@ +SOURCES = main.cpp +QT += widgets -- cgit v1.2.3