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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:18:55 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:18:55 (GMT)
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/layouts
downloadQt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip
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Long live Qt 4.5!
Diffstat (limited to 'examples/layouts')
-rw-r--r--examples/layouts/README41
-rw-r--r--examples/layouts/basiclayouts/basiclayouts.pro9
-rw-r--r--examples/layouts/basiclayouts/dialog.cpp150
-rw-r--r--examples/layouts/basiclayouts/dialog.h91
-rw-r--r--examples/layouts/basiclayouts/main.cpp51
-rw-r--r--examples/layouts/borderlayout/borderlayout.cpp214
-rw-r--r--examples/layouts/borderlayout/borderlayout.h89
-rw-r--r--examples/layouts/borderlayout/borderlayout.pro11
-rw-r--r--examples/layouts/borderlayout/main.cpp52
-rw-r--r--examples/layouts/borderlayout/window.cpp69
-rw-r--r--examples/layouts/borderlayout/window.h62
-rw-r--r--examples/layouts/dynamiclayouts/dialog.cpp170
-rw-r--r--examples/layouts/dynamiclayouts/dialog.h91
-rw-r--r--examples/layouts/dynamiclayouts/dynamiclayouts.pro9
-rw-r--r--examples/layouts/dynamiclayouts/main.cpp51
-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
-rw-r--r--examples/layouts/layouts.pro10
22 files changed, 1578 insertions, 0 deletions
diff --git a/examples/layouts/README b/examples/layouts/README
new file mode 100644
index 0000000..edaea78
--- /dev/null
+++ b/examples/layouts/README
@@ -0,0 +1,41 @@
+Qt uses a layout-based approach to widget management. Widgets are arranged in
+the optimal positions in windows based on simple layout rules, leading to a
+consistent look and feel.
+
+Custom layouts can be used to provide more control over the positions and
+sizes of child widgets.
+
+
+The example launcher provided with Qt can be used to explore each of the
+examples in this directory.
+
+Documentation for these examples can be found via the Tutorial and Examples
+link in the main Qt documentation.
+
+
+Finding the Qt Examples and Demos launcher
+==========================================
+
+On Windows:
+
+The launcher can be accessed via the Windows Start menu. Select the menu
+entry entitled "Qt Examples and Demos" entry in the submenu containing
+the Qt tools.
+
+On Mac OS X:
+
+For the binary distribution, the qtdemo executable is installed in the
+/Developer/Applications/Qt directory. For the source distribution, it is
+installed alongside the other Qt tools on the path specified when Qt is
+configured.
+
+On Unix/Linux:
+
+The qtdemo executable is installed alongside the other Qt tools on the path
+specified when Qt is configured.
+
+On all platforms:
+
+The source code for the launcher can be found in the demos/qtdemo directory
+in the Qt package. This example is built at the same time as the Qt libraries,
+tools, examples, and demonstrations.
diff --git a/examples/layouts/basiclayouts/basiclayouts.pro b/examples/layouts/basiclayouts/basiclayouts.pro
new file mode 100644
index 0000000..8fa73ff
--- /dev/null
+++ b/examples/layouts/basiclayouts/basiclayouts.pro
@@ -0,0 +1,9 @@
+HEADERS = dialog.h
+SOURCES = dialog.cpp \
+ main.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/layouts/basiclayouts
+sources.files = $$SOURCES $$HEADERS *.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/layouts/basiclayouts
+INSTALLS += target sources
diff --git a/examples/layouts/basiclayouts/dialog.cpp b/examples/layouts/basiclayouts/dialog.cpp
new file mode 100644
index 0000000..86cafb9
--- /dev/null
+++ b/examples/layouts/basiclayouts/dialog.cpp
@@ -0,0 +1,150 @@
+/****************************************************************************
+**
+** 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 "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, SIGNAL(accepted()), this, SLOT(accept()));
+ connect(buttonBox, SIGNAL(rejected()), this, SLOT(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] //! [5]
+ setLayout(mainLayout);
+
+ 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, SIGNAL(triggered()), this, SLOT(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]
diff --git a/examples/layouts/basiclayouts/dialog.h b/examples/layouts/basiclayouts/dialog.h
new file mode 100644
index 0000000..b6b1e3a
--- /dev/null
+++ b/examples/layouts/basiclayouts/dialog.h
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** 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 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
diff --git a/examples/layouts/basiclayouts/main.cpp b/examples/layouts/basiclayouts/main.cpp
new file mode 100644
index 0000000..09c49ee
--- /dev/null
+++ b/examples/layouts/basiclayouts/main.cpp
@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** 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 "dialog.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ Dialog dialog;
+ return dialog.exec();
+}
diff --git a/examples/layouts/borderlayout/borderlayout.cpp b/examples/layouts/borderlayout/borderlayout.cpp
new file mode 100644
index 0000000..25a4778
--- /dev/null
+++ b/examples/layouts/borderlayout/borderlayout.cpp
@@ -0,0 +1,214 @@
+/****************************************************************************
+**
+** 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 "borderlayout.h"
+
+BorderLayout::BorderLayout(QWidget *parent, int margin, int spacing)
+ : QLayout(parent)
+{
+ setMargin(margin);
+ setSpacing(spacing);
+}
+
+BorderLayout::BorderLayout(int spacing)
+{
+ setSpacing(spacing);
+}
+
+
+BorderLayout::~BorderLayout()
+{
+ QLayoutItem *l;
+ while ((l = takeAt(0)))
+ delete l;
+}
+
+void BorderLayout::addItem(QLayoutItem *item)
+{
+ add(item, West);
+}
+
+void BorderLayout::addWidget(QWidget *widget, Position position)
+{
+ add(new QWidgetItem(widget), position);
+}
+
+Qt::Orientations BorderLayout::expandingDirections() const
+{
+ return Qt::Horizontal | Qt::Vertical;
+}
+
+bool BorderLayout::hasHeightForWidth() const
+{
+ return false;
+}
+
+int BorderLayout::count() const
+{
+ return list.size();
+}
+
+QLayoutItem *BorderLayout::itemAt(int index) const
+{
+ ItemWrapper *wrapper = list.value(index);
+ if (wrapper)
+ return wrapper->item;
+ else
+ return 0;
+}
+
+QSize BorderLayout::minimumSize() const
+{
+ return calculateSize(MinimumSize);
+}
+
+void BorderLayout::setGeometry(const QRect &rect)
+{
+ ItemWrapper *center = 0;
+ int eastWidth = 0;
+ int westWidth = 0;
+ int northHeight = 0;
+ int southHeight = 0;
+ int centerHeight = 0;
+ int i;
+
+ QLayout::setGeometry(rect);
+
+ for (i = 0; i < list.size(); ++i) {
+ ItemWrapper *wrapper = list.at(i);
+ QLayoutItem *item = wrapper->item;
+ Position position = wrapper->position;
+
+ if (position == North) {
+ item->setGeometry(QRect(rect.x(), northHeight, rect.width(),
+ item->sizeHint().height()));
+
+ northHeight += item->geometry().height() + spacing();
+ } else if (position == South) {
+ item->setGeometry(QRect(item->geometry().x(),
+ item->geometry().y(), rect.width(),
+ item->sizeHint().height()));
+
+ southHeight += item->geometry().height() + spacing();
+
+ item->setGeometry(QRect(rect.x(),
+ rect.y() + rect.height() - southHeight + spacing(),
+ item->geometry().width(),
+ item->geometry().height()));
+ } else if (position == Center) {
+ center = wrapper;
+ }
+ }
+
+ centerHeight = rect.height() - northHeight - southHeight;
+
+ for (i = 0; i < list.size(); ++i) {
+ ItemWrapper *wrapper = list.at(i);
+ QLayoutItem *item = wrapper->item;
+ Position position = wrapper->position;
+
+ if (position == West) {
+ item->setGeometry(QRect(rect.x() + westWidth, northHeight,
+ item->sizeHint().width(), centerHeight));
+
+ westWidth += item->geometry().width() + spacing();
+ } else if (position == East) {
+ item->setGeometry(QRect(item->geometry().x(), item->geometry().y(),
+ item->sizeHint().width(), centerHeight));
+
+ eastWidth += item->geometry().width() + spacing();
+
+ item->setGeometry(QRect(
+ rect.x() + rect.width() - eastWidth + spacing(),
+ northHeight, item->geometry().width(),
+ item->geometry().height()));
+ }
+ }
+
+ if (center)
+ center->item->setGeometry(QRect(westWidth, northHeight,
+ rect.width() - eastWidth - westWidth,
+ centerHeight));
+}
+
+QSize BorderLayout::sizeHint() const
+{
+ return calculateSize(SizeHint);
+}
+
+QLayoutItem *BorderLayout::takeAt(int index)
+{
+ if (index >= 0 && index < list.size()) {
+ ItemWrapper *layoutStruct = list.takeAt(index);
+ return layoutStruct->item;
+ }
+ return 0;
+}
+
+void BorderLayout::add(QLayoutItem *item, Position position)
+{
+ list.append(new ItemWrapper(item, position));
+}
+
+QSize BorderLayout::calculateSize(SizeType sizeType) const
+{
+ QSize totalSize;
+
+ for (int i = 0; i < list.size(); ++i) {
+ ItemWrapper *wrapper = list.at(i);
+ Position position = wrapper->position;
+ QSize itemSize;
+
+ if (sizeType == MinimumSize)
+ itemSize = wrapper->item->minimumSize();
+ else // (sizeType == SizeHint)
+ itemSize = wrapper->item->sizeHint();
+
+ if (position == North || position == South || position == Center)
+ totalSize.rheight() += itemSize.height();
+
+ if (position == West || position == East || position == Center)
+ totalSize.rwidth() += itemSize.width();
+ }
+ return totalSize;
+}
diff --git a/examples/layouts/borderlayout/borderlayout.h b/examples/layouts/borderlayout/borderlayout.h
new file mode 100644
index 0000000..781a01f
--- /dev/null
+++ b/examples/layouts/borderlayout/borderlayout.h
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** 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 BORDERLAYOUT_H
+#define BORDERLAYOUT_H
+
+#include <QLayout>
+#include <QRect>
+#include <QWidgetItem>
+
+class BorderLayout : public QLayout
+{
+public:
+ enum Position { West, North, South, East, Center };
+
+ BorderLayout(QWidget *parent, int margin = 0, int spacing = -1);
+ BorderLayout(int spacing = -1);
+ ~BorderLayout();
+
+ void addItem(QLayoutItem *item);
+ void addWidget(QWidget *widget, Position position);
+ Qt::Orientations expandingDirections() const;
+ bool hasHeightForWidth() const;
+ int count() const;
+ QLayoutItem *itemAt(int index) const;
+ QSize minimumSize() const;
+ void setGeometry(const QRect &rect);
+ QSize sizeHint() const;
+ QLayoutItem *takeAt(int index);
+
+ void add(QLayoutItem *item, Position position);
+
+private:
+ struct ItemWrapper
+ {
+ ItemWrapper(QLayoutItem *i, Position p) {
+ item = i;
+ position = p;
+ }
+
+ QLayoutItem *item;
+ Position position;
+ };
+
+ enum SizeType { MinimumSize, SizeHint };
+ QSize calculateSize(SizeType sizeType) const;
+
+ QList<ItemWrapper *> list;
+};
+
+#endif
diff --git a/examples/layouts/borderlayout/borderlayout.pro b/examples/layouts/borderlayout/borderlayout.pro
new file mode 100644
index 0000000..e327574
--- /dev/null
+++ b/examples/layouts/borderlayout/borderlayout.pro
@@ -0,0 +1,11 @@
+HEADERS = borderlayout.h \
+ window.h
+SOURCES = borderlayout.cpp \
+ main.cpp \
+ window.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/layouts/borderlayout
+sources.files = $$SOURCES $$HEADERS *.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/layouts/borderlayout
+INSTALLS += target sources
diff --git a/examples/layouts/borderlayout/main.cpp b/examples/layouts/borderlayout/main.cpp
new file mode 100644
index 0000000..fa8b0ab
--- /dev/null
+++ b/examples/layouts/borderlayout/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/borderlayout/window.cpp b/examples/layouts/borderlayout/window.cpp
new file mode 100644
index 0000000..2b08551
--- /dev/null
+++ b/examples/layouts/borderlayout/window.cpp
@@ -0,0 +1,69 @@
+/****************************************************************************
+**
+** 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 "borderlayout.h"
+#include "window.h"
+
+Window::Window()
+{
+ QTextBrowser *centralWidget = new QTextBrowser;
+ centralWidget->setPlainText(tr("Central widget"));
+
+ BorderLayout *layout = new BorderLayout;
+ layout->addWidget(centralWidget, BorderLayout::Center);
+ layout->addWidget(createLabel("North"), BorderLayout::North);
+ layout->addWidget(createLabel("West"), BorderLayout::West);
+ layout->addWidget(createLabel("East 1"), BorderLayout::East);
+ layout->addWidget(createLabel("East 2") , BorderLayout::East);
+ layout->addWidget(createLabel("South"), BorderLayout::South);
+ setLayout(layout);
+
+ setWindowTitle(tr("Border Layout"));
+}
+
+QLabel *Window::createLabel(const QString &text)
+{
+ QLabel *label = new QLabel(text);
+ label->setFrameStyle(QFrame::Box | QFrame::Raised);
+ return label;
+}
diff --git a/examples/layouts/borderlayout/window.h b/examples/layouts/borderlayout/window.h
new file mode 100644
index 0000000..708d270
--- /dev/null
+++ b/examples/layouts/borderlayout/window.h
@@ -0,0 +1,62 @@
+/****************************************************************************
+**
+** 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();
+
+private:
+ QLabel *createLabel(const QString &text);
+};
+
+#endif
diff --git a/examples/layouts/dynamiclayouts/dialog.cpp b/examples/layouts/dynamiclayouts/dialog.cpp
new file mode 100644
index 0000000..eee15f6
--- /dev/null
+++ b/examples/layouts/dynamiclayouts/dialog.cpp
@@ -0,0 +1,170 @@
+/****************************************************************************
+**
+** 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 "dialog.h"
+
+Dialog::Dialog(QWidget *parent)
+ : QDialog(parent)
+{
+ createRotableGroupBox();
+ createOptionsGroupBox();
+ createButtonBox();
+
+ mainLayout = new QGridLayout;
+ mainLayout->addWidget(rotableGroupBox, 0, 0);
+ mainLayout->addWidget(optionsGroupBox, 1, 0);
+ mainLayout->addWidget(buttonBox, 2, 0);
+ setLayout(mainLayout);
+
+ mainLayout->setSizeConstraint(QLayout::SetMinimumSize);
+
+ setWindowTitle(tr("Dynamic Layouts"));
+}
+
+void Dialog::buttonsOrientationChanged(int index)
+{
+ mainLayout->setSizeConstraint(QLayout::SetNoConstraint);
+ setMinimumSize(0, 0);
+
+ Qt::Orientation orientation = Qt::Orientation(
+ buttonsOrientationComboBox->itemData(index).toInt());
+
+ if (orientation == buttonBox->orientation())
+ return;
+
+ mainLayout->removeWidget(buttonBox);
+
+ int spacing = mainLayout->spacing();
+
+ QSize oldSizeHint = buttonBox->sizeHint() + QSize(spacing, spacing);
+ buttonBox->setOrientation(orientation);
+ QSize newSizeHint = buttonBox->sizeHint() + QSize(spacing, spacing);
+
+ if (orientation == Qt::Horizontal) {
+ mainLayout->addWidget(buttonBox, 2, 0);
+ resize(size() + QSize(-oldSizeHint.width(), newSizeHint.height()));
+ } else {
+ mainLayout->addWidget(buttonBox, 0, 3, 2, 1);
+ resize(size() + QSize(newSizeHint.width(), -oldSizeHint.height()));
+ }
+
+ mainLayout->setSizeConstraint(QLayout::SetDefaultConstraint);
+}
+
+void Dialog::rotateWidgets()
+{
+ Q_ASSERT(rotableWidgets.count() % 2 == 0);
+
+ foreach (QWidget *widget, rotableWidgets)
+ rotableLayout->removeWidget(widget);
+
+ rotableWidgets.enqueue(rotableWidgets.dequeue());
+
+ const int n = rotableWidgets.count();
+ for (int i = 0; i < n / 2; ++i) {
+ rotableLayout->addWidget(rotableWidgets[n - i - 1], 0, i);
+ rotableLayout->addWidget(rotableWidgets[i], 1, i);
+ }
+}
+
+void Dialog::help()
+{
+ QMessageBox::information(this, tr("Dynamic Layouts Help"),
+ tr("This example shows how to change layouts "
+ "dynamically."));
+}
+
+void Dialog::createRotableGroupBox()
+{
+ rotableGroupBox = new QGroupBox(tr("Rotable Widgets"));
+
+ rotableWidgets.enqueue(new QSpinBox);
+ rotableWidgets.enqueue(new QSlider);
+ rotableWidgets.enqueue(new QDial);
+ rotableWidgets.enqueue(new QProgressBar);
+
+ int n = rotableWidgets.count();
+ for (int i = 0; i < n; ++i) {
+ connect(rotableWidgets[i], SIGNAL(valueChanged(int)),
+ rotableWidgets[(i + 1) % n], SLOT(setValue(int)));
+ }
+
+ rotableLayout = new QGridLayout;
+ rotableGroupBox->setLayout(rotableLayout);
+
+ rotateWidgets();
+}
+
+void Dialog::createOptionsGroupBox()
+{
+ optionsGroupBox = new QGroupBox(tr("Options"));
+
+ buttonsOrientationLabel = new QLabel(tr("Orientation of buttons:"));
+
+ buttonsOrientationComboBox = new QComboBox;
+ buttonsOrientationComboBox->addItem(tr("Horizontal"), Qt::Horizontal);
+ buttonsOrientationComboBox->addItem(tr("Vertical"), Qt::Vertical);
+
+ connect(buttonsOrientationComboBox, SIGNAL(currentIndexChanged(int)),
+ this, SLOT(buttonsOrientationChanged(int)));
+
+ optionsLayout = new QGridLayout;
+ optionsLayout->addWidget(buttonsOrientationLabel, 0, 0);
+ optionsLayout->addWidget(buttonsOrientationComboBox, 0, 1);
+ optionsLayout->setColumnStretch(2, 1);
+ optionsGroupBox->setLayout(optionsLayout);
+}
+
+void Dialog::createButtonBox()
+{
+ buttonBox = new QDialogButtonBox;
+
+ closeButton = buttonBox->addButton(QDialogButtonBox::Close);
+ helpButton = buttonBox->addButton(QDialogButtonBox::Help);
+ rotateWidgetsButton = buttonBox->addButton(tr("Rotate &Widgets"),
+ QDialogButtonBox::ActionRole);
+
+ connect(rotateWidgetsButton, SIGNAL(clicked()), this, SLOT(rotateWidgets()));
+ connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));
+ connect(helpButton, SIGNAL(clicked()), this, SLOT(help()));
+}
diff --git a/examples/layouts/dynamiclayouts/dialog.h b/examples/layouts/dynamiclayouts/dialog.h
new file mode 100644
index 0000000..bc1225a
--- /dev/null
+++ b/examples/layouts/dynamiclayouts/dialog.h
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** 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 DIALOG_H
+#define DIALOG_H
+
+#include <QDialog>
+#include <QQueue>
+
+QT_BEGIN_NAMESPACE
+class QComboBox;
+class QDialogButtonBox;
+class QGridLayout;
+class QGroupBox;
+class QLabel;
+class QPushButton;
+QT_END_NAMESPACE
+
+class Dialog : public QDialog
+{
+ Q_OBJECT
+
+public:
+ Dialog(QWidget *parent = 0);
+
+private slots:
+ void buttonsOrientationChanged(int index);
+ void rotateWidgets();
+ void help();
+
+private:
+ void createRotableGroupBox();
+ void createOptionsGroupBox();
+ void createButtonBox();
+
+ QGroupBox *rotableGroupBox;
+ QQueue<QWidget *> rotableWidgets;
+
+ QGroupBox *optionsGroupBox;
+ QLabel *buttonsOrientationLabel;
+ QComboBox *buttonsOrientationComboBox;
+
+ QDialogButtonBox *buttonBox;
+ QPushButton *closeButton;
+ QPushButton *helpButton;
+ QPushButton *rotateWidgetsButton;
+
+ QGridLayout *mainLayout;
+ QGridLayout *rotableLayout;
+ QGridLayout *optionsLayout;
+};
+
+#endif
diff --git a/examples/layouts/dynamiclayouts/dynamiclayouts.pro b/examples/layouts/dynamiclayouts/dynamiclayouts.pro
new file mode 100644
index 0000000..c169dd0
--- /dev/null
+++ b/examples/layouts/dynamiclayouts/dynamiclayouts.pro
@@ -0,0 +1,9 @@
+HEADERS = dialog.h
+SOURCES = dialog.cpp \
+ main.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/layouts/dynamiclayouts
+sources.files = $$SOURCES $$HEADERS *.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/layouts/dynamiclayouts
+INSTALLS += target sources
diff --git a/examples/layouts/dynamiclayouts/main.cpp b/examples/layouts/dynamiclayouts/main.cpp
new file mode 100644
index 0000000..09c49ee
--- /dev/null
+++ b/examples/layouts/dynamiclayouts/main.cpp
@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** 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 "dialog.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ Dialog dialog;
+ return dialog.exec();
+}
diff --git a/examples/layouts/flowlayout/flowlayout.cpp b/examples/layouts/flowlayout/flowlayout.cpp
new file mode 100644
index 0000000..d1e857d
--- /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 0000000..f864d8e
--- /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 0000000..0e97824
--- /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 0000000..fa8b0ab
--- /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 0000000..51d9886
--- /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 0000000..ffd60af
--- /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
diff --git a/examples/layouts/layouts.pro b/examples/layouts/layouts.pro
new file mode 100644
index 0000000..9676f4b
--- /dev/null
+++ b/examples/layouts/layouts.pro
@@ -0,0 +1,10 @@
+TEMPLATE = subdirs
+SUBDIRS = basiclayouts \
+ borderlayout \
+ dynamiclayouts \
+ flowlayout
+
+# install
+sources.files = README *.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/layouts
+INSTALLS += sources