dconfigdlgview_p.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2009-11-03
 * Description : A dialog base class which can handle multiple pages.
 *
 * Copyright (C) 2009-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 * Copyright (C) 2007      by Rafael Fernández López <ereslibre at kde dot org>
 * Copyright (C) 2006      by Tobias Koenig <tokoe at kde dot org>
 *
 * This program is free software; you can redistribute it
 * and/or modify it under the terms of the GNU General
 * Public License as published by the Free Software Foundation;
 * either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_DCONFIG_DLG_VIEW_PRIVATE_H
#define DIGIKAM_DCONFIG_DLG_VIEW_PRIVATE_H
 
#include "dconfigdlgview.h"
 
// Qt includes
 
#include <QAbstractItemDelegate>
#include <QGridLayout>
#include <QStackedWidget>
#include <QAbstractProxyModel>
#include <QListView>
#include <QTabBar>
#include <QTreeView>
 
// Local includes
 
#include "dconfigdlgwidgets.h"
 
namespace Digikam
{
 
class Q_DECL_HIDDEN DConfigDlgStackedWidget : public QStackedWidget
{
    Q_OBJECT
 
public:
 
    explicit DConfigDlgStackedWidget(QWidget* const parent = nullptr)
        : QStackedWidget(parent)
    {
    }
 
    void setMinimumSize(const QSize& size)
    {
        mMinimumSize = size;
    }
 
    QSize minimumSizeHint() const override
    {
        return mMinimumSize.expandedTo(QStackedWidget::minimumSizeHint());
    }
 
private:
 
    QSize mMinimumSize;
};
 
// ---------------------------
 
class Q_DECL_HIDDEN DConfigDlgViewPrivate
{
    Q_DECLARE_PUBLIC(DConfigDlgView)
 
protected:
 
    explicit DConfigDlgViewPrivate(DConfigDlgView* const);
 
    void updateTitleWidget(const QModelIndex& index);
 
    void updateSelection();
    void cleanupPages();
    QList<QWidget*> collectPages(const QModelIndex& parent = QModelIndex());
    DConfigDlgView::FaceType detectAutoFace() const;
 
    // private slots
 
    void _k_rebuildGui();
    void _k_modelChanged();
    void _k_dataChanged(const QModelIndex&, const QModelIndex&);
    void _k_pageSelected(const QItemSelection&, const QItemSelection&);
 
protected:
 
    DConfigDlgView*          q_ptr;
 
    // data
 
    QAbstractItemModel*      model;
    DConfigDlgView::FaceType faceType;
 
    // gui
 
    QGridLayout*             layout;
    DConfigDlgStackedWidget* stack;
    DConfigDlgTitle*         titleWidget;
    QWidget*                 defaultWidget;
 
    QAbstractItemView*       view;
 
private:
 
    // cppcheck-suppress unusedPrivateFunction
    void init();
};
 
// --------------------------------------------------------------------------------------------
 
namespace DConfigDlgInternal
{
 
class DConfigDlgListViewDelegate;
class DConfigDlgListViewProxy;
 
class Q_DECL_HIDDEN DConfigDlgPlainView : public QAbstractItemView
{
    Q_OBJECT
 
public:
 
    explicit DConfigDlgPlainView(QWidget* const 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 Q_DECL_HIDDEN DConfigDlgListView : public QListView
{
    Q_OBJECT
 
public:
 
    explicit DConfigDlgListView(QWidget* const parent = nullptr);
    ~DConfigDlgListView() override;
 
    void setModel(QAbstractItemModel* model) override;
 
private Q_SLOTS:
 
    void updateWidth();
};
 
// ---------------------------
 
class Q_DECL_HIDDEN DConfigDlgTreeView : public QTreeView
{
    Q_OBJECT
 
public:
 
    explicit DConfigDlgTreeView(QWidget* const parent = nullptr);
 
    void setModel(QAbstractItemModel* model) override;
 
private Q_SLOTS:
 
    void updateWidth();
 
private:
 
    void expandItems(const QModelIndex& index = QModelIndex());
};
 
// ---------------------------
 
class Q_DECL_HIDDEN DConfigDlgTabbedView : public QAbstractItemView
{
    Q_OBJECT
 
public:
 
    explicit DConfigDlgTabbedView(QWidget* const parent = nullptr);
    ~DConfigDlgTabbedView() 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 Q_DECL_HIDDEN DConfigDlgListViewDelegate : public QAbstractItemDelegate
{
    Q_OBJECT
 
public:
 
    explicit DConfigDlgListViewDelegate(QObject* const 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;
};
 
// ---------------------------
 
class Q_DECL_HIDDEN DConfigDlgListViewProxy : public QAbstractProxyModel
{
    Q_OBJECT
 
public:
 
    explicit DConfigDlgListViewProxy(QObject* const parent = nullptr);
    ~DConfigDlgListViewProxy() 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&);
 
private:
 
    QList<QModelIndex> mList;
};
 
// ---------------------------
 
class Q_DECL_HIDDEN SelectionModel : public QItemSelectionModel
{
    Q_OBJECT
 
public:
 
    SelectionModel(QAbstractItemModel* const model, QObject* const 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;
};
 
} // namespace DConfigDlgInternal
 
} // namespace Digikam
 
#endif // DIGIKAM_DCONFIG_DLG_VIEW_PRIVATE_H