File indexing completed on 2024-04-28 15:32:09

 /*
     This file is part of the KDE Libraries
     SPDX-FileCopyrightText: 2006 Tobias Koenig <tokoe@kde.org>
     SPDX-FileCopyrightText: 2007 Rafael Fernández López <ereslibre@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef KPAGEVIEW_P_H
 #define KPAGEVIEW_P_H
 
 #include "kpageview.h"
 
 #include <QAbstractItemDelegate>
 #include <QAbstractProxyModel>
 #include <QGridLayout>
 #include <QListView>
 #include <QPointer>
 #include <QStackedWidget>
 #include <QTreeView>
 #include <ktitlewidget.h>
 
 class KPageStackedWidget : public QStackedWidget
 {
     Q_OBJECT
 public:
     explicit KPageStackedWidget(QWidget *parent = nullptr)
         : QStackedWidget(parent)
     {
     }
 
     void setMinimumSize(const QSize &size)
     {
         mMinimumSize = size;
     }
 
     QSize minimumSizeHint() const override
     {
         return mMinimumSize.expandedTo(QStackedWidget::minimumSizeHint());
     }
 
 private:
     QSize mMinimumSize;
 };
 
 class KPageViewPrivate
 {
     Q_DECLARE_PUBLIC(KPageView)
 
 public:
     virtual ~KPageViewPrivate() = default;
 
 protected:
     KPageViewPrivate(KPageView *);
 
     KPageView *q_ptr;
 
     // data
     QAbstractItemModel *model;
     KPageView::FaceType faceType;
 
     // gui
     QGridLayout *layout;
     KPageStackedWidget *stack;
     KTitleWidget *titleWidget;
     QWidget *defaultWidget;
 
     QAbstractItemView *view;
 
     QPointer<QWidget> pageHeader;
     QPointer<QWidget> pageFooter;
 
     void updateTitleWidget(const QModelIndex &index);
 
     void updateSelection();
     void cleanupPages();
     QList<QWidget *> collectPages(const QModelIndex &parent = QModelIndex());
     KPageView::FaceType detectAutoFace() const;
     KPageView::FaceType effectiveFaceType() const;
 
     // private slots
     void rebuildGui();
     void modelChanged();
     void dataChanged(const QModelIndex &, const QModelIndex &);
     void pageSelected(const QItemSelection &, const QItemSelection &);
 
 private:
     void init();
 
     QMetaObject::Connection m_dataChangedConnection;
     QMetaObject::Connection m_layoutChangedConnection;
     QMetaObject::Connection m_selectionChangedConnection;
 };
 
 namespace KDEPrivate
 {
 class KPageListViewDelegate;
 class KPageListViewProxy;
 
 class KPagePlainView : public QAbstractItemView
 {
     Q_OBJECT
 public:
     explicit KPagePlainView(QWidget *parent = nullptr);
 
     QModelIndex indexAt(const QPoint &point) const override;
     void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible) override;
     QRect visualRect(const QModelIndex &index) const override;
 
 protected:
     QModelIndex moveCursor(QAbstractItemView::CursorAction, Qt::KeyboardModifiers) override;
     int horizontalOffset() const override;
     int verticalOffset() const override;
     bool isIndexHidden(const QModelIndex &) const override;
     void setSelection(const QRect &, QFlags<QItemSelectionModel::SelectionFlag>) override;
     QRegion visualRegionForSelection(const QItemSelection &) const override;
 };
 
 class KPageListView : public QListView
 {
     Q_OBJECT
 
 public:
     explicit KPageListView(QWidget *parent = nullptr);
     ~KPageListView() override;
 
     void setModel(QAbstractItemModel *model) override;
 
 protected:
     void changeEvent(QEvent *event) override;
 
 private Q_SLOTS:
     void updateWidth();
 };
 
 class KPageTreeView : public QTreeView
 {
     Q_OBJECT
 
 public:
     explicit KPageTreeView(QWidget *parent = nullptr);
 
     void setModel(QAbstractItemModel *model) override;
 
 private Q_SLOTS:
     void updateWidth();
 
 private:
     void expandItems(const QModelIndex &index = QModelIndex());
 };
 
 class KPageTabbedView : public QAbstractItemView
 {
     Q_OBJECT
 
 public:
     explicit KPageTabbedView(QWidget *parent = nullptr);
     ~KPageTabbedView() override;
 
     void setModel(QAbstractItemModel *model) override;
 
     QModelIndex indexAt(const QPoint &point) const override;
     void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible) override;
     QRect visualRect(const QModelIndex &index) const override;
 
     QSize minimumSizeHint() const override;
 
 protected:
     QModelIndex moveCursor(QAbstractItemView::CursorAction, Qt::KeyboardModifiers) override;
     int horizontalOffset() const override;
     int verticalOffset() const override;
     bool isIndexHidden(const QModelIndex &) const override;
     void setSelection(const QRect &, QFlags<QItemSelectionModel::SelectionFlag>) override;
     QRegion visualRegionForSelection(const QItemSelection &) const override;
 
 private Q_SLOTS:
     void currentPageChanged(int);
     void layoutChanged();
     void dataChanged(const QModelIndex &, const QModelIndex &, const QVector<int> &roles) override;
 
 private:
     QTabWidget *mTabWidget;
 };
 
 class KPageListViewDelegate : public QAbstractItemDelegate
 {
     Q_OBJECT
 
 public:
     explicit KPageListViewDelegate(QObject *parent = nullptr);
 
     void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
     QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const override;
 
 private:
     void drawFocus(QPainter *, const QStyleOptionViewItem &, const QRect &) const;
 };
 
 /**
  * We need this proxy model to map the leaves of a tree-like model
  * to a one-level list model.
  */
 class KPageListViewProxy : public QAbstractProxyModel
 {
     Q_OBJECT
 
 public:
     explicit KPageListViewProxy(QObject *parent = nullptr);
     ~KPageListViewProxy() override;
 
     int rowCount(const QModelIndex &parent = QModelIndex()) const override;
     int columnCount(const QModelIndex &parent = QModelIndex()) const override;
     QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
     QModelIndex parent(const QModelIndex &) const override;
     QVariant data(const QModelIndex &index, int role) const override;
     QModelIndex mapFromSource(const QModelIndex &index) const override;
     QModelIndex mapToSource(const QModelIndex &index) const override;
 
 public Q_SLOTS:
     void rebuildMap();
 
 private:
     void addMapEntry(const QModelIndex &);
 
     QList<QModelIndex> mList;
 };
 
 class SelectionModel : public QItemSelectionModel
 {
     Q_OBJECT
 
 public:
     SelectionModel(QAbstractItemModel *model, QObject *parent);
 
 public Q_SLOTS:
     void clear() override;
     void select(const QModelIndex &index, QItemSelectionModel::SelectionFlags command) override;
     void select(const QItemSelection &selection, QItemSelectionModel::SelectionFlags command) override;
 };
 
 }
 
 #endif