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Diffstat (limited to 'sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd')
8 files changed, 881 insertions, 0 deletions
diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/dragdropmodel.h b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/dragdropmodel.h new file mode 100644 index 000000000..d639bb17f --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/dragdropmodel.h @@ -0,0 +1,72 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef DRAGDROPMODEL_H +#define DRAGDROPMODEL_H + +#include "treemodel.h" + +class DragDropModel : public TreeModel +{ + Q_OBJECT + +public: + DragDropModel(const QStringList &strings, QObject *parent = 0); + + Qt::ItemFlags flags(const QModelIndex &index) const; + + bool dropMimeData(const QMimeData *data, Qt::DropAction action, + int row, int column, const QModelIndex &parent); + QMimeData *mimeData(const QModelIndexList &indexes) const; + QStringList mimeTypes() const; + Qt::DropActions supportedDropActions() const; +}; + +#endif diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/main.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/main.cpp new file mode 100644 index 000000000..08343ac18 --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/main.cpp @@ -0,0 +1,61 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtWidgets> + +#include "mainwindow.h" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + MainWindow *window = new MainWindow; + window->show(); + return app.exec(); +} diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/mainwindow.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/mainwindow.cpp new file mode 100644 index 000000000..373a17ea9 --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/mainwindow.cpp @@ -0,0 +1,100 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtWidgets> + +#include "mainwindow.h" +#include "dragdropmodel.h" + +MainWindow::MainWindow() +{ + QMenu *fileMenu = new QMenu(tr("&File")); + + QAction *quitAction = fileMenu->addAction(tr("E&xit")); + quitAction->setShortcut(tr("Ctrl+Q")); + + menuBar()->addMenu(fileMenu); + +// For convenient quoting: + QTreeView *treeView = new QTreeView(this); + treeView->setSelectionMode(QAbstractItemView::ExtendedSelection); + treeView->setDragEnabled(true); + treeView->setAcceptDrops(true); + treeView->setDropIndicatorShown(true); + + this->treeView = treeView; + + connect(quitAction, SIGNAL(triggered()), this, SLOT(close())); + + setupItems(); + + setCentralWidget(treeView); + setWindowTitle(tr("Tree View")); +} + +void MainWindow::setupItems() +{ + QStringList items; + items << tr("Widgets\tUser interface objects used to create GUI applications.") + << tr(" QWidget\tThe basic building block for all other widgets.") + << tr(" QDialog\tThe base class for dialog windows.") + << tr("Tools\tUtilities and applications for Qt developers.") + << tr(" Qt Designer\tA GUI form designer for Qt applications.") + << tr(" Qt Assistant\tA documentation browser for Qt documentation."); + + DragDropModel *model = new DragDropModel(items, this); + QModelIndex index = model->index(0, 0, QModelIndex()); + model->insertRows(2, 3, index); + index = model->index(0, 0, QModelIndex()); + index = model->index(2, 0, index); + model->setData(index, QVariant("QFrame")); + model->removeRows(3, 2, index.parent()); + treeView->setModel(model); +} diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/mainwindow.h b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/mainwindow.h new file mode 100644 index 000000000..55d8e2399 --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/mainwindow.h @@ -0,0 +1,71 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef WINDOW_H +#define WINDOW_H + +#include <QMainWindow> + +class QTreeView; + +class MainWindow : public QMainWindow +{ + Q_OBJECT + +public: + MainWindow(); + +private: + void setupItems(); + + QTreeView *treeView; +}; + +#endif diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treeitem.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treeitem.cpp new file mode 100644 index 000000000..0243dc528 --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treeitem.cpp @@ -0,0 +1,135 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/* + treeitem.cpp + + A container for items of data supplied by the simple tree model. +*/ + +#include <QStringList> + +#include "treeitem.h" + +TreeItem::TreeItem(const QList<QVariant> &data, TreeItem *parent) +{ + parentItem = parent; + itemData = data; +} + +TreeItem::~TreeItem() +{ + qDeleteAll(childItems); +} + +void TreeItem::appendChild(TreeItem *item) +{ + childItems.append(item); +} + +TreeItem *TreeItem::child(int row) +{ + return childItems.value(row); +} + +int TreeItem::childCount() const +{ + return childItems.count(); +} + +int TreeItem::columnCount() const +{ + return itemData.count(); +} + +QVariant TreeItem::data(int column) const +{ + return itemData.value(column); +} + +bool TreeItem::insertChild(int row, TreeItem *item) +{ + if (row < 0 || row > childItems.count()) + return false; + + childItems.insert(row, item); + return true; +} + +TreeItem *TreeItem::parent() +{ + return parentItem; +} + +bool TreeItem::removeChild(int row) +{ + if (row < 0 || row >= childItems.count()) + return false; + + delete childItems.takeAt(row); + return true; +} + +int TreeItem::row() const +{ + if (parentItem) + return parentItem->childItems.indexOf(const_cast<TreeItem*>(this)); + + return 0; +} + +bool TreeItem::setData(int column, const QVariant &data) +{ + if (column < 0 || column >= itemData.count()) + return false; + + itemData.replace(column, data); + return true; +} diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treeitem.h b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treeitem.h new file mode 100644 index 000000000..b96243b3f --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treeitem.h @@ -0,0 +1,81 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef TREEITEM_H +#define TREEITEM_H + +#include <QList> +#include <QVariant> + +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; + bool insertChild(int row, TreeItem *item); + TreeItem *parent(); + bool removeChild(int row); + int row() const; + bool setData(int column, const QVariant &data); + +private: + QList<TreeItem*> childItems; + QList<QVariant> itemData; + TreeItem *parentItem; +}; + +#endif diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treemodel.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treemodel.cpp new file mode 100644 index 000000000..7b10543eb --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treemodel.cpp @@ -0,0 +1,272 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/* + treemodel.cpp + + Provides a simple tree model to show how to create and use hierarchical + models. +*/ + +#include <QtWidgets> + +#include "treeitem.h" +#include "treemodel.h" + +TreeModel::TreeModel(const QStringList &strings, QObject *parent) + : QAbstractItemModel(parent) +{ + QList<QVariant> rootData; + rootData << "Title" << "Summary"; + rootItem = new TreeItem(rootData); + setupModelData(strings, rootItem); +} + +TreeModel::~TreeModel() +{ + delete rootItem; +} + +int TreeModel::columnCount(const QModelIndex &parent) const +{ + if (parent.isValid()) + return static_cast<TreeItem*>(parent.internalPointer())->columnCount(); + else + return rootItem->columnCount(); +} + +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()); +} + +Qt::ItemFlags TreeModel::flags(const QModelIndex &index) const +{ + if (!index.isValid()) + return Qt::ItemIsEnabled; + + return Qt::ItemIsEnabled | Qt::ItemIsSelectable; +} + +QVariant TreeModel::headerData(int section, Qt::Orientation orientation, + int role) const +{ + if (orientation == Qt::Horizontal && role == Qt::DisplayRole) + return rootItem->data(section); + + return QVariant(); +} + +QModelIndex TreeModel::index(int row, int column, const QModelIndex &parent) + const +{ + 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(); +} + +bool TreeModel::insertRows(int position, int rows, const QModelIndex &parent) +{ + TreeItem *parentItem; + + if (!parent.isValid()) + parentItem = rootItem; + else + parentItem = static_cast<TreeItem*>(parent.internalPointer()); + + if (position < 0 || position > parentItem->childCount()) + return false; + + QList<QVariant> blankList; + for (int column = 0; column < columnCount(); ++column) + blankList << QVariant(""); + + beginInsertRows(parent, position, position + rows - 1); + + for (int row = 0; row < rows; ++row) { + TreeItem *newItem = new TreeItem(blankList, parentItem); + if (!parentItem->insertChild(position, newItem)) + break; + } + + endInsertRows(); + return true; +} + +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); +} + +bool TreeModel::removeRows(int position, int rows, const QModelIndex &parent) +{ + TreeItem *parentItem; + + if (!parent.isValid()) + parentItem = rootItem; + else + parentItem = static_cast<TreeItem*>(parent.internalPointer()); + + if (position < 0 || position > parentItem->childCount()) + return false; + + beginRemoveRows(parent, position, position + rows - 1); + + for (int row = 0; row < rows; ++row) { + if (!parentItem->removeChild(position)) + break; + } + + endRemoveRows(); + return true; +} + +int TreeModel::rowCount(const QModelIndex &parent) const +{ + TreeItem *parentItem; + + if (!parent.isValid()) + parentItem = rootItem; + else + parentItem = static_cast<TreeItem*>(parent.internalPointer()); + + return parentItem->childCount(); +} + +bool TreeModel::setData(const QModelIndex &index, + const QVariant &value, int role) +{ + if (!index.isValid() || role != Qt::EditRole) + return false; + + TreeItem *item = static_cast<TreeItem*>(index.internalPointer()); + + if (item->setData(index.column(), value)) + emit dataChanged(index, index); + else + return false; + + return true; +} + +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/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treemodel.h b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treemodel.h new file mode 100644 index 000000000..9d02df605 --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/treemodel.h @@ -0,0 +1,89 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef TREEMODEL_H +#define TREEMODEL_H + +#include <QAbstractItemModel> +#include <QModelIndex> +#include <QVariant> + +class TreeItem; + +class TreeModel : public QAbstractItemModel +{ + Q_OBJECT + +public: + TreeModel(const QStringList &strings, 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; + + bool insertRows(int position, int rows, const QModelIndex &parent = QModelIndex()); + bool removeRows(int position, int rows, const QModelIndex &parent = QModelIndex()); + bool setData(const QModelIndex &index, const QVariant &value, + int role = Qt::EditRole); + +private: + void setupModelData(const QStringList &lines, TreeItem *parent); + + TreeItem *rootItem; +}; + +#endif |