130 lines
4.2 KiB
C++
130 lines
4.2 KiB
C++
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2010, David Sansome <me@davidsansome.com>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef GROUPEDICONVIEW_H
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#define GROUPEDICONVIEW_H
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#include <QObject>
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#include <QListView>
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#include <QAbstractItemModel>
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#include <QAbstractItemView>
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#include <QItemSelectionModel>
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#include <QString>
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#include <QFont>
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#include <QPalette>
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#include <QPoint>
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#include <QRect>
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#include <QRegion>
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#include <QVector>
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class QWidget;
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class QPainter;
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class QModelIndex;
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class QPaintEvent;
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class QResizeEvent;
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class MultiSortFilterProxy;
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class GroupedIconView : public QListView {
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Q_OBJECT
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// Vertical space separating a header from the items above and below it.
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Q_PROPERTY(int header_spacing READ header_spacing WRITE set_header_spacing)
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// Horizontal space separating a header from the left and right edges of the widget.
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Q_PROPERTY(int header_indent READ header_indent WRITE set_header_indent)
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// Horizontal space separating an item from the left and right edges of the widget.
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Q_PROPERTY(int item_indent READ item_indent WRITE set_item_indent)
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// The text of each group's header. Must contain "%1".
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Q_PROPERTY(QString header_text READ header_text WRITE set_header_text)
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public:
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explicit GroupedIconView(QWidget *parent = nullptr);
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enum Role {
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Role_Group = 1158300,
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};
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void AddSortSpec(const int role, const Qt::SortOrder order = Qt::AscendingOrder);
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int header_spacing() const { return header_spacing_; }
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int header_indent() const { return header_indent_; }
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int item_indent() const { return item_indent_; }
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const QString &header_text() const { return header_text_; }
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void set_header_spacing(const int value) { header_spacing_ = value; }
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void set_header_indent(const int value) { header_indent_ = value; }
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void set_item_indent(const int value) { item_indent_ = value; }
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void set_header_text(const QString &value) { header_text_ = value; }
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// QAbstractItemView
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QModelIndex moveCursor(CursorAction action, Qt::KeyboardModifiers modifiers) override;
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void setModel(QAbstractItemModel *model) override;
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static void DrawHeader(QPainter *painter, const QRect rect, const QFont &font, const QPalette &palette, const QString &text);
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protected:
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virtual int header_height() const;
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// QWidget
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void paintEvent(QPaintEvent *e) override;
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void resizeEvent(QResizeEvent *e) override;
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// QAbstractItemView
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void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int>& = QVector<int>()) override;
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QModelIndex indexAt(const QPoint &p) const override;
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void rowsInserted(const QModelIndex &parent, int start, int end) override;
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void setSelection(const QRect &rect, QItemSelectionModel::SelectionFlags command) override;
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QRect visualRect(const QModelIndex &idx) const override;
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QRegion visualRegionForSelection(const QItemSelection &selection) const override;
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private slots:
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void LayoutItems();
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private:
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static const int kBarThickness;
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static const int kBarMarginTop;
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struct Header {
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int y;
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int first_row;
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QString text;
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};
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// Returns the items that are wholly or partially inside the rect.
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QVector<QModelIndex> IntersectingItems(const QRect rect) const;
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// Returns the index of the item above (d=-1) or below (d=+1) the given item.
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int IndexAboveOrBelow(int index, const int d) const;
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MultiSortFilterProxy *proxy_model_;
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QVector<QRect> visual_rects_;
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QVector<Header> headers_;
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const int default_header_height_;
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int header_spacing_;
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int header_indent_;
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int item_indent_;
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QString header_text_;
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};
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#endif // GROUPEDICONVIEW_H
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