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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 10:18:55 +0100
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 10:18:55 +0100
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/layouts/flowlayout
Long live Qt 4.5!
Diffstat (limited to 'examples/layouts/flowlayout')
-rw-r--r--examples/layouts/flowlayout/flowlayout.cpp154
-rw-r--r--examples/layouts/flowlayout/flowlayout.h73
-rw-r--r--examples/layouts/flowlayout/flowlayout.pro11
-rw-r--r--examples/layouts/flowlayout/main.cpp52
-rw-r--r--examples/layouts/flowlayout/window.cpp59
-rw-r--r--examples/layouts/flowlayout/window.h59
6 files changed, 408 insertions, 0 deletions
diff --git a/examples/layouts/flowlayout/flowlayout.cpp b/examples/layouts/flowlayout/flowlayout.cpp
new file mode 100644
index 0000000000..d1e857d591
--- /dev/null
+++ b/examples/layouts/flowlayout/flowlayout.cpp
@@ -0,0 +1,154 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "flowlayout.h"
+
+FlowLayout::FlowLayout(QWidget *parent, int margin, int spacing)
+ : QLayout(parent)
+{
+ setMargin(margin);
+ setSpacing(spacing);
+}
+
+FlowLayout::FlowLayout(int spacing)
+{
+ setSpacing(spacing);
+}
+
+FlowLayout::~FlowLayout()
+{
+ QLayoutItem *item;
+ while ((item = takeAt(0)))
+ delete item;
+}
+
+void FlowLayout::addItem(QLayoutItem *item)
+{
+ itemList.append(item);
+}
+
+int FlowLayout::count() const
+{
+ return itemList.size();
+}
+
+QLayoutItem *FlowLayout::itemAt(int index) const
+{
+ return itemList.value(index);
+}
+
+QLayoutItem *FlowLayout::takeAt(int index)
+{
+ if (index >= 0 && index < itemList.size())
+ return itemList.takeAt(index);
+ else
+ return 0;
+}
+
+Qt::Orientations FlowLayout::expandingDirections() const
+{
+ return 0;
+}
+
+bool FlowLayout::hasHeightForWidth() const
+{
+ return true;
+}
+
+int FlowLayout::heightForWidth(int width) const
+{
+ int height = doLayout(QRect(0, 0, width, 0), true);
+ return height;
+}
+
+void FlowLayout::setGeometry(const QRect &rect)
+{
+ QLayout::setGeometry(rect);
+ doLayout(rect, false);
+}
+
+QSize FlowLayout::sizeHint() const
+{
+ return minimumSize();
+}
+
+QSize FlowLayout::minimumSize() const
+{
+ QSize size;
+ QLayoutItem *item;
+ foreach (item, itemList)
+ size = size.expandedTo(item->minimumSize());
+
+ size += QSize(2*margin(), 2*margin());
+ return size;
+}
+
+int FlowLayout::doLayout(const QRect &rect, bool testOnly) const
+{
+ int x = rect.x();
+ int y = rect.y();
+ int lineHeight = 0;
+
+ QLayoutItem *item;
+ foreach (item, itemList) {
+ QWidget *wid = item->widget();
+ int spaceX = spacing() + wid->style()->layoutSpacing(
+ QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Horizontal);
+ int spaceY = spacing() + wid->style()->layoutSpacing(
+ QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Vertical);
+ int nextX = x + item->sizeHint().width() + spaceX;
+ if (nextX - spaceX > rect.right() && lineHeight > 0) {
+ x = rect.x();
+ y = y + lineHeight + spaceY;
+ nextX = x + item->sizeHint().width() + spaceX;
+ lineHeight = 0;
+ }
+
+ if (!testOnly)
+ item->setGeometry(QRect(QPoint(x, y), item->sizeHint()));
+
+ x = nextX;
+ lineHeight = qMax(lineHeight, item->sizeHint().height());
+ }
+ return y + lineHeight - rect.y();
+}
diff --git a/examples/layouts/flowlayout/flowlayout.h b/examples/layouts/flowlayout/flowlayout.h
new file mode 100644
index 0000000000..f864d8eeab
--- /dev/null
+++ b/examples/layouts/flowlayout/flowlayout.h
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef FLOWLAYOUT_H
+#define FLOWLAYOUT_H
+
+#include <QLayout>
+#include <QRect>
+#include <QWidgetItem>
+
+class FlowLayout : public QLayout
+{
+public:
+ FlowLayout(QWidget *parent, int margin = -1, int spacing = 0);
+ FlowLayout(int spacing = 0);
+ ~FlowLayout();
+
+ void addItem(QLayoutItem *item);
+ Qt::Orientations expandingDirections() const;
+ bool hasHeightForWidth() const;
+ int heightForWidth(int) const;
+ int count() const;
+ QLayoutItem *itemAt(int index) const;
+ QSize minimumSize() const;
+ void setGeometry(const QRect &rect);
+ QSize sizeHint() const;
+ QLayoutItem *takeAt(int index);
+
+private:
+ int doLayout(const QRect &rect, bool testOnly) const;
+
+ QList<QLayoutItem *> itemList;
+};
+
+#endif
diff --git a/examples/layouts/flowlayout/flowlayout.pro b/examples/layouts/flowlayout/flowlayout.pro
new file mode 100644
index 0000000000..0e9782459c
--- /dev/null
+++ b/examples/layouts/flowlayout/flowlayout.pro
@@ -0,0 +1,11 @@
+HEADERS = flowlayout.h \
+ window.h
+SOURCES = flowlayout.cpp \
+ main.cpp \
+ window.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/layouts/flowlayout
+sources.files = $$SOURCES $$HEADERS *.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/layouts/flowlayout
+INSTALLS += target sources
diff --git a/examples/layouts/flowlayout/main.cpp b/examples/layouts/flowlayout/main.cpp
new file mode 100644
index 0000000000..fa8b0abb9d
--- /dev/null
+++ b/examples/layouts/flowlayout/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include "window.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ Window window;
+ window.show();
+ return app.exec();
+}
diff --git a/examples/layouts/flowlayout/window.cpp b/examples/layouts/flowlayout/window.cpp
new file mode 100644
index 0000000000..51d9886721
--- /dev/null
+++ b/examples/layouts/flowlayout/window.cpp
@@ -0,0 +1,59 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "flowlayout.h"
+#include "window.h"
+
+Window::Window()
+{
+ FlowLayout *flowLayout = new FlowLayout;
+
+ flowLayout->addWidget(new QPushButton(tr("Short")));
+ flowLayout->addWidget(new QPushButton(tr("Longer")));
+ flowLayout->addWidget(new QPushButton(tr("Different text")));
+ flowLayout->addWidget(new QPushButton(tr("More text")));
+ flowLayout->addWidget(new QPushButton(tr("Even longer button text")));
+ setLayout(flowLayout);
+
+ setWindowTitle(tr("Flow Layout"));
+}
diff --git a/examples/layouts/flowlayout/window.h b/examples/layouts/flowlayout/window.h
new file mode 100644
index 0000000000..ffd60af93d
--- /dev/null
+++ b/examples/layouts/flowlayout/window.h
@@ -0,0 +1,59 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+class QLabel;
+QT_END_NAMESPACE
+
+class Window : public QWidget
+{
+ Q_OBJECT
+
+public:
+ Window();
+};
+
+#endif