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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/itemviews/simpletreemodel
downloadQt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip
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Long live Qt 4.5!
Diffstat (limited to 'examples/itemviews/simpletreemodel')
-rw-r--r--examples/itemviews/simpletreemodel/default.txt40
-rw-r--r--examples/itemviews/simpletreemodel/main.cpp62
-rw-r--r--examples/itemviews/simpletreemodel/simpletreemodel.pro13
-rw-r--r--examples/itemviews/simpletreemodel/simpletreemodel.qrc5
-rw-r--r--examples/itemviews/simpletreemodel/treeitem.cpp117
-rw-r--r--examples/itemviews/simpletreemodel/treeitem.h71
-rw-r--r--examples/itemviews/simpletreemodel/treemodel.cpp219
-rw-r--r--examples/itemviews/simpletreemodel/treemodel.h77
8 files changed, 604 insertions, 0 deletions
diff --git a/examples/itemviews/simpletreemodel/default.txt b/examples/itemviews/simpletreemodel/default.txt
new file mode 100644
index 0000000..2b2fb57
--- /dev/null
+++ b/examples/itemviews/simpletreemodel/default.txt
@@ -0,0 +1,40 @@
+Getting Started How to familiarize yourself with Qt Designer
+ Launching Designer Running the Qt Designer application
+ The User Interface How to interact with Qt Designer
+
+Designing a Component Creating a GUI for your application
+ Creating a Dialog How to create a dialog
+ Composing the Dialog Putting widgets into the dialog example
+ Creating a Layout Arranging widgets on a form
+ Signal and Slot Connections Making widget communicate with each other
+
+Using a Component in Your Application Generating code from forms
+ The Direct Approach Using a form without any adjustments
+ The Single Inheritance Approach Subclassing a form's base class
+ The Multiple Inheritance Approach Subclassing the form itself
+ Automatic Connections Connecting widgets using a naming scheme
+ A Dialog Without Auto-Connect How to connect widgets without a naming scheme
+ A Dialog With Auto-Connect Using automatic connections
+
+Form Editing Mode How to edit a form in Qt Designer
+ Managing Forms Loading and saving forms
+ Editing a Form Basic editing techniques
+ The Property Editor Changing widget properties
+ The Object Inspector Examining the hierarchy of objects on a form
+ Layouts Objects that arrange widgets on a form
+ Applying and Breaking Layouts Managing widgets in layouts
+ Horizontal and Vertical Layouts Standard row and column layouts
+ The Grid Layout Arranging widgets in a matrix
+ Previewing Forms Checking that the design works
+
+Using Containers How to group widgets together
+ General Features Common container features
+ Frames QFrame
+ Group Boxes QGroupBox
+ Stacked Widgets QStackedWidget
+ Tab Widgets QTabWidget
+ Toolbox Widgets QToolBox
+
+Connection Editing Mode Connecting widgets together with signals and slots
+ Connecting Objects Making connections in Qt Designer
+ Editing Connections Changing existing connections
diff --git a/examples/itemviews/simpletreemodel/main.cpp b/examples/itemviews/simpletreemodel/main.cpp
new file mode 100644
index 0000000..89bdc77
--- /dev/null
+++ b/examples/itemviews/simpletreemodel/main.cpp
@@ -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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "treemodel.h"
+
+int main(int argc, char *argv[])
+{
+ Q_INIT_RESOURCE(simpletreemodel);
+
+ QApplication app(argc, argv);
+
+ QFile file(":/default.txt");
+ file.open(QIODevice::ReadOnly);
+ TreeModel model(file.readAll());
+ file.close();
+
+ QTreeView view;
+ view.setModel(&model);
+ view.setWindowTitle(QObject::tr("Simple Tree Model"));
+ view.show();
+ return app.exec();
+}
diff --git a/examples/itemviews/simpletreemodel/simpletreemodel.pro b/examples/itemviews/simpletreemodel/simpletreemodel.pro
new file mode 100644
index 0000000..9db74d4
--- /dev/null
+++ b/examples/itemviews/simpletreemodel/simpletreemodel.pro
@@ -0,0 +1,13 @@
+HEADERS = treeitem.h \
+ treemodel.h
+RESOURCES = simpletreemodel.qrc
+SOURCES = treeitem.cpp \
+ treemodel.cpp \
+ main.cpp
+CONFIG += qt
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/itemviews/simpletreemodel
+sources.files = $$SOURCES $$HEADERS $$RESOURCES *.pro *.txt
+sources.path = $$[QT_INSTALL_EXAMPLES]/itemviews/simpletreemodel
+INSTALLS += target sources
diff --git a/examples/itemviews/simpletreemodel/simpletreemodel.qrc b/examples/itemviews/simpletreemodel/simpletreemodel.qrc
new file mode 100644
index 0000000..a8ecc98
--- /dev/null
+++ b/examples/itemviews/simpletreemodel/simpletreemodel.qrc
@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+ <file>default.txt</file>
+</qresource>
+</RCC>
diff --git a/examples/itemviews/simpletreemodel/treeitem.cpp b/examples/itemviews/simpletreemodel/treeitem.cpp
new file mode 100644
index 0000000..d2c1eed
--- /dev/null
+++ b/examples/itemviews/simpletreemodel/treeitem.cpp
@@ -0,0 +1,117 @@
+/****************************************************************************
+**
+** 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+ treeitem.cpp
+
+ A container for items of data supplied by the simple tree model.
+*/
+
+#include <QStringList>
+
+#include "treeitem.h"
+
+//! [0]
+TreeItem::TreeItem(const QList<QVariant> &data, TreeItem *parent)
+{
+ parentItem = parent;
+ itemData = data;
+}
+//! [0]
+
+//! [1]
+TreeItem::~TreeItem()
+{
+ qDeleteAll(childItems);
+}
+//! [1]
+
+//! [2]
+void TreeItem::appendChild(TreeItem *item)
+{
+ childItems.append(item);
+}
+//! [2]
+
+//! [3]
+TreeItem *TreeItem::child(int row)
+{
+ return childItems.value(row);
+}
+//! [3]
+
+//! [4]
+int TreeItem::childCount() const
+{
+ return childItems.count();
+}
+//! [4]
+
+//! [5]
+int TreeItem::columnCount() const
+{
+ return itemData.count();
+}
+//! [5]
+
+//! [6]
+QVariant TreeItem::data(int column) const
+{
+ return itemData.value(column);
+}
+//! [6]
+
+//! [7]
+TreeItem *TreeItem::parent()
+{
+ return parentItem;
+}
+//! [7]
+
+//! [8]
+int TreeItem::row() const
+{
+ if (parentItem)
+ return parentItem->childItems.indexOf(const_cast<TreeItem*>(this));
+
+ return 0;
+}
+//! [8]
diff --git a/examples/itemviews/simpletreemodel/treeitem.h b/examples/itemviews/simpletreemodel/treeitem.h
new file mode 100644
index 0000000..7bfd63b
--- /dev/null
+++ b/examples/itemviews/simpletreemodel/treeitem.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+**
+** 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 TREEITEM_H
+#define TREEITEM_H
+
+#include <QList>
+#include <QVariant>
+
+//! [0]
+class TreeItem
+{
+public:
+ TreeItem(const QList<QVariant> &data, TreeItem *parent = 0);
+ ~TreeItem();
+
+ void appendChild(TreeItem *child);
+
+ TreeItem *child(int row);
+ int childCount() const;
+ int columnCount() const;
+ QVariant data(int column) const;
+ int row() const;
+ TreeItem *parent();
+
+private:
+ QList<TreeItem*> childItems;
+ QList<QVariant> itemData;
+ TreeItem *parentItem;
+};
+//! [0]
+
+#endif
diff --git a/examples/itemviews/simpletreemodel/treemodel.cpp b/examples/itemviews/simpletreemodel/treemodel.cpp
new file mode 100644
index 0000000..ec7bd64
--- /dev/null
+++ b/examples/itemviews/simpletreemodel/treemodel.cpp
@@ -0,0 +1,219 @@
+/****************************************************************************
+**
+** 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+ treemodel.cpp
+
+ Provides a simple tree model to show how to create and use hierarchical
+ models.
+*/
+
+#include <QtGui>
+
+#include "treeitem.h"
+#include "treemodel.h"
+
+//! [0]
+TreeModel::TreeModel(const QString &data, QObject *parent)
+ : QAbstractItemModel(parent)
+{
+ QList<QVariant> rootData;
+ rootData << "Title" << "Summary";
+ rootItem = new TreeItem(rootData);
+ setupModelData(data.split(QString("\n")), rootItem);
+}
+//! [0]
+
+//! [1]
+TreeModel::~TreeModel()
+{
+ delete rootItem;
+}
+//! [1]
+
+//! [2]
+int TreeModel::columnCount(const QModelIndex &parent) const
+{
+ if (parent.isValid())
+ return static_cast<TreeItem*>(parent.internalPointer())->columnCount();
+ else
+ return rootItem->columnCount();
+}
+//! [2]
+
+//! [3]
+QVariant TreeModel::data(const QModelIndex &index, int role) const
+{
+ if (!index.isValid())
+ return QVariant();
+
+ if (role != Qt::DisplayRole)
+ return QVariant();
+
+ TreeItem *item = static_cast<TreeItem*>(index.internalPointer());
+
+ return item->data(index.column());
+}
+//! [3]
+
+//! [4]
+Qt::ItemFlags TreeModel::flags(const QModelIndex &index) const
+{
+ if (!index.isValid())
+ return 0;
+
+ return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+}
+//! [4]
+
+//! [5]
+QVariant TreeModel::headerData(int section, Qt::Orientation orientation,
+ int role) const
+{
+ if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
+ return rootItem->data(section);
+
+ return QVariant();
+}
+//! [5]
+
+//! [6]
+QModelIndex TreeModel::index(int row, int column, const QModelIndex &parent)
+ const
+{
+ if (!hasIndex(row, column, parent))
+ return QModelIndex();
+
+ TreeItem *parentItem;
+
+ if (!parent.isValid())
+ parentItem = rootItem;
+ else
+ parentItem = static_cast<TreeItem*>(parent.internalPointer());
+
+ TreeItem *childItem = parentItem->child(row);
+ if (childItem)
+ return createIndex(row, column, childItem);
+ else
+ return QModelIndex();
+}
+//! [6]
+
+//! [7]
+QModelIndex TreeModel::parent(const QModelIndex &index) const
+{
+ if (!index.isValid())
+ return QModelIndex();
+
+ TreeItem *childItem = static_cast<TreeItem*>(index.internalPointer());
+ TreeItem *parentItem = childItem->parent();
+
+ if (parentItem == rootItem)
+ return QModelIndex();
+
+ return createIndex(parentItem->row(), 0, parentItem);
+}
+//! [7]
+
+//! [8]
+int TreeModel::rowCount(const QModelIndex &parent) const
+{
+ TreeItem *parentItem;
+ if (parent.column() > 0)
+ return 0;
+
+ if (!parent.isValid())
+ parentItem = rootItem;
+ else
+ parentItem = static_cast<TreeItem*>(parent.internalPointer());
+
+ return parentItem->childCount();
+}
+//! [8]
+
+void TreeModel::setupModelData(const QStringList &lines, TreeItem *parent)
+{
+ QList<TreeItem*> parents;
+ QList<int> indentations;
+ parents << parent;
+ indentations << 0;
+
+ int number = 0;
+
+ while (number < lines.count()) {
+ int position = 0;
+ while (position < lines[number].length()) {
+ if (lines[number].mid(position, 1) != " ")
+ break;
+ position++;
+ }
+
+ QString lineData = lines[number].mid(position).trimmed();
+
+ if (!lineData.isEmpty()) {
+ // Read the column data from the rest of the line.
+ QStringList columnStrings = lineData.split("\t", QString::SkipEmptyParts);
+ QList<QVariant> columnData;
+ for (int column = 0; column < columnStrings.count(); ++column)
+ columnData << columnStrings[column];
+
+ if (position > indentations.last()) {
+ // The last child of the current parent is now the new parent
+ // unless the current parent has no children.
+
+ if (parents.last()->childCount() > 0) {
+ parents << parents.last()->child(parents.last()->childCount()-1);
+ indentations << position;
+ }
+ } else {
+ while (position < indentations.last() && parents.count() > 0) {
+ parents.pop_back();
+ indentations.pop_back();
+ }
+ }
+
+ // Append a new item to the current parent's list of children.
+ parents.last()->appendChild(new TreeItem(columnData, parents.last()));
+ }
+
+ number++;
+ }
+}
diff --git a/examples/itemviews/simpletreemodel/treemodel.h b/examples/itemviews/simpletreemodel/treemodel.h
new file mode 100644
index 0000000..3b535f9
--- /dev/null
+++ b/examples/itemviews/simpletreemodel/treemodel.h
@@ -0,0 +1,77 @@
+/****************************************************************************
+**
+** 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 TREEMODEL_H
+#define TREEMODEL_H
+
+#include <QAbstractItemModel>
+#include <QModelIndex>
+#include <QVariant>
+
+class TreeItem;
+
+//! [0]
+class TreeModel : public QAbstractItemModel
+{
+ Q_OBJECT
+
+public:
+ TreeModel(const QString &data, QObject *parent = 0);
+ ~TreeModel();
+
+ QVariant data(const QModelIndex &index, int role) const;
+ Qt::ItemFlags flags(const QModelIndex &index) const;
+ QVariant headerData(int section, Qt::Orientation orientation,
+ int role = Qt::DisplayRole) const;
+ QModelIndex index(int row, int column,
+ const QModelIndex &parent = QModelIndex()) const;
+ QModelIndex parent(const QModelIndex &index) const;
+ int rowCount(const QModelIndex &parent = QModelIndex()) const;
+ int columnCount(const QModelIndex &parent = QModelIndex()) const;
+
+private:
+ void setupModelData(const QStringList &lines, TreeItem *parent);
+
+ TreeItem *rootItem;
+};
+//! [0]
+
+#endif