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Diffstat (limited to 'examples/widgets/widgets/shortcuteditor/shortcuteditormodel.cpp')
| -rw-r--r-- | examples/widgets/widgets/shortcuteditor/shortcuteditormodel.cpp | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/examples/widgets/widgets/shortcuteditor/shortcuteditormodel.cpp b/examples/widgets/widgets/shortcuteditor/shortcuteditormodel.cpp new file mode 100644 index 0000000000..612f1fb726 --- /dev/null +++ b/examples/widgets/widgets/shortcuteditor/shortcuteditormodel.cpp @@ -0,0 +1,273 @@ +// Copyright (C) 2022 Laszlo Papp <lpapp@kde.org> +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "shortcuteditormodel.h" + +#include "actionmanager.h" +#include "application.h" + +#include <QAction> +#include <QModelIndex> + +// List of actions for all categories +using CategoryActionsMap = QMap<QString, QList<QAction *>>; + +// List of categories for all contexts +using ActionsMap = QMap<QString, CategoryActionsMap>; + + +ShortcutEditorModel::ShortcutEditorModelItem::ShortcutEditorModelItem(const QList<QVariant> &data, ShortcutEditorModelItem *parent) + : m_itemData(data) + , m_parentItem(parent) +{ +} + +ShortcutEditorModel::ShortcutEditorModelItem::~ShortcutEditorModelItem() +{ + qDeleteAll(m_childItems); +} + +void ShortcutEditorModel::ShortcutEditorModelItem::appendChild(ShortcutEditorModelItem *item) +{ + m_childItems.push_back(item); +} + +ShortcutEditorModel::ShortcutEditorModelItem *ShortcutEditorModel::ShortcutEditorModelItem::child(int row) const +{ + if (row < 0 || row >= m_childItems.size()) + return nullptr; + + return m_childItems.at(row); +} + +int ShortcutEditorModel::ShortcutEditorModelItem::childCount() const +{ + return m_childItems.count(); +} + +int ShortcutEditorModel::ShortcutEditorModelItem::columnCount() const +{ + return m_itemData.count(); +} + +QVariant ShortcutEditorModel::ShortcutEditorModelItem::data(int column) const +{ + if (column < 0 || column >= m_itemData.size()) + return QVariant(); + + QVariant columnVariant = m_itemData.at(column); + if (column != static_cast<int>(Column::Shortcut) || columnVariant.canConvert<QString>()) + return columnVariant; + + QAction *action = static_cast<QAction *>(columnVariant.value<void *>()); + if (!action) + return QVariant(); + + QKeySequence keySequence = action->shortcut(); + QString keySequenceString = keySequence.toString(QKeySequence::NativeText); + return keySequenceString; +} + +ShortcutEditorModel::ShortcutEditorModelItem *ShortcutEditorModel::ShortcutEditorModelItem::parentItem() const +{ + return m_parentItem; +} + +int ShortcutEditorModel::ShortcutEditorModelItem::row() const +{ + if (m_parentItem) + return m_parentItem->m_childItems.indexOf(const_cast<ShortcutEditorModelItem*>(this)); + + return 0; +} + +QAction *ShortcutEditorModel::ShortcutEditorModelItem::action() const +{ + QVariant actionVariant = m_itemData.at(static_cast<int>(Column::Shortcut)); + return static_cast<QAction*>(actionVariant.value<void *>()); +} + + +//! [0] +ShortcutEditorModel::ShortcutEditorModel(QObject *parent) + : QAbstractItemModel(parent) +{ + m_rootItem = new ShortcutEditorModelItem({tr("Name"), tr("Shortcut")}); +} +//! [0] + +//! [1] +ShortcutEditorModel::~ShortcutEditorModel() +{ + delete m_rootItem; +} +//! [1] + +//! [2] +void ShortcutEditorModel::setActions() +{ + beginResetModel(); + setupModelData(m_rootItem); + endResetModel(); +} +//! [2] + +//! [3] +QModelIndex ShortcutEditorModel::index(int row, int column, const QModelIndex &parent) const +{ + if (!hasIndex(row, column, parent)) + return QModelIndex(); + + ShortcutEditorModelItem *parentItem; + if (!parent.isValid()) + parentItem = m_rootItem; + else + parentItem = static_cast<ShortcutEditorModelItem*>(parent.internalPointer()); + + ShortcutEditorModelItem *childItem = parentItem->child(row); + if (childItem) + return createIndex(row, column, childItem); + + return QModelIndex(); +} +//! [3] + +//! [4] +QModelIndex ShortcutEditorModel::parent(const QModelIndex &index) const +{ + if (!index.isValid()) + return QModelIndex(); + + ShortcutEditorModelItem *childItem = static_cast<ShortcutEditorModelItem*>(index.internalPointer()); + ShortcutEditorModelItem *parentItem = childItem->parentItem(); + + if (parentItem == m_rootItem) + return QModelIndex(); + + return createIndex(parentItem->row(), 0, parentItem); +} +//! [4] + +//! [5] +int ShortcutEditorModel::rowCount(const QModelIndex &parent) const +{ + ShortcutEditorModelItem *parentItem; + if (parent.column() > 0) + return 0; + + if (!parent.isValid()) + parentItem = m_rootItem; + else + parentItem = static_cast<ShortcutEditorModelItem*>(parent.internalPointer()); + + return parentItem->childCount(); +} +//! [5] + +//! [6] +int ShortcutEditorModel::columnCount(const QModelIndex &parent) const +{ + if (parent.isValid()) + return static_cast<ShortcutEditorModelItem*>(parent.internalPointer())->columnCount(); + + return m_rootItem->columnCount(); +} +//! [6] + +//! [7] +QVariant ShortcutEditorModel::data(const QModelIndex &index, int role) const +{ + if (!index.isValid()) + return QVariant(); + + if (role != Qt::DisplayRole && role != Qt::EditRole) + return QVariant(); + + ShortcutEditorModelItem *item = static_cast<ShortcutEditorModelItem*>(index.internalPointer()); + return item->data(index.column()); +} +//! [7] + +//! [8] +Qt::ItemFlags ShortcutEditorModel::flags(const QModelIndex &index) const +{ + if (!index.isValid()) + return Qt::NoItemFlags; + + Qt::ItemFlags modelFlags = QAbstractItemModel::flags(index); + if (index.column() == static_cast<int>(Column::Shortcut)) + modelFlags |= Qt::ItemIsEditable; + + return modelFlags; +} +//! [8] + +//! [9] +QVariant ShortcutEditorModel::headerData(int section, Qt::Orientation orientation, int role) const +{ + if (orientation == Qt::Horizontal && role == Qt::DisplayRole) { + return m_rootItem->data(section); + } + + return QVariant(); +} +//! [9] + +//! [10] +void ShortcutEditorModel::setupModelData(ShortcutEditorModelItem *parent) +{ + ActionsMap actionsMap; + Application *application = static_cast<Application *>(QCoreApplication::instance()); + ActionManager *actionManager = application->actionManager(); + const QList<QAction *> registeredActions = actionManager->registeredActions(); + for (QAction *action : registeredActions) { + QString context = actionManager->contextForAction(action); + QString category = actionManager->categoryForAction(action); + actionsMap[context][category].append(action); + } + + QAction *nullAction = nullptr; + const QString contextIdPrefix = "root"; + // Go through each context, one context - many categories each iteration + for (const auto &contextLevel : actionsMap.keys()) { + ShortcutEditorModelItem *contextLevelItem = new ShortcutEditorModelItem({contextLevel, QVariant::fromValue(nullAction)}, parent); + parent->appendChild(contextLevelItem); + + // Go through each category, one category - many actions each iteration + for (const auto &categoryLevel : actionsMap[contextLevel].keys()) { + ShortcutEditorModelItem *categoryLevelItem = new ShortcutEditorModelItem({categoryLevel, QVariant::fromValue(nullAction)}, contextLevelItem); + contextLevelItem->appendChild(categoryLevelItem); + for (QAction *action : actionsMap[contextLevel][categoryLevel]) { + QString name = action->text(); + if (name.isEmpty() || !action) + continue; + + ShortcutEditorModelItem *actionLevelItem = new ShortcutEditorModelItem({name, QVariant::fromValue(reinterpret_cast<void *>(action))}, categoryLevelItem); + categoryLevelItem->appendChild(actionLevelItem); + } + } + } +} +//! [10] + +//! [11] +bool ShortcutEditorModel::setData(const QModelIndex &index, const QVariant &value, int role) +{ + if (role == Qt::EditRole && index.column() == static_cast<int>(Column::Shortcut)) { + QString keySequenceString = value.toString(); + ShortcutEditorModelItem *item = static_cast<ShortcutEditorModelItem *>(index.internalPointer()); + QAction *itemAction = item->action(); + if (itemAction) { + if (keySequenceString == itemAction->shortcut().toString(QKeySequence::NativeText)) + return true; + itemAction->setShortcut(keySequenceString); + } + Q_EMIT dataChanged(index, index); + + if (keySequenceString.isEmpty()) + return true; + } + + return QAbstractItemModel::setData(index, value, role); +} +//! [11] |