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Clementine-audio-player-Mac.../src/widgets/groupediconview.h

114 lines
3.7 KiB
C++

/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
Clementine 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 3 of the License, or
(at your option) any later version.
Clementine 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.
You should have received a copy of the GNU General Public License
along with Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GROUPEDICONVIEW_H
#define GROUPEDICONVIEW_H
#include <QListView>
class MultiSortFilterProxy;
class GroupedIconView : public QListView {
Q_OBJECT
// Vertical space separating a header from the items above and below it.
Q_PROPERTY(int header_spacing READ header_spacing WRITE set_header_spacing)
// Horizontal space separating a header from the left and right edges of the
// widget.
Q_PROPERTY(int header_indent READ header_indent WRITE set_header_indent)
// Horizontal space separating an item from the left and right edges of the
// widget.
Q_PROPERTY(int item_indent READ item_indent WRITE set_item_indent)
// The text of each group's header. Must contain "%1".
Q_PROPERTY(QString header_text READ header_text WRITE set_header_text);
public:
GroupedIconView(QWidget* parent = nullptr);
enum Role { Role_Group = 1158300, };
void AddSortSpec(int role, Qt::SortOrder order = Qt::AscendingOrder);
int header_spacing() const { return header_spacing_; }
int header_indent() const { return header_indent_; }
int item_indent() const { return item_indent_; }
const QString& header_text() const { return header_text_; }
void set_header_spacing(int value) { header_spacing_ = value; }
void set_header_indent(int value) { header_indent_ = value; }
void set_item_indent(int value) { item_indent_ = value; }
void set_header_text(const QString& value) { header_text_ = value; }
// QAbstractItemView
QModelIndex moveCursor(CursorAction action, Qt::KeyboardModifiers modifiers);
void setModel(QAbstractItemModel* model);
static void DrawHeader(QPainter* painter, const QRect& rect,
const QFont& font, const QPalette& palette,
const QString& text);
protected:
virtual int header_height() const;
// QWidget
void paintEvent(QPaintEvent* e);
void resizeEvent(QResizeEvent* e);
// QAbstractItemView
void dataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight);
QModelIndex indexAt(const QPoint& p) const;
void rowsInserted(const QModelIndex& parent, int start, int end);
void setSelection(const QRect& rect,
QItemSelectionModel::SelectionFlags command);
QRect visualRect(const QModelIndex& index) const;
QRegion visualRegionForSelection(const QItemSelection& selection) const;
private slots:
void LayoutItems();
private:
static const int kBarThickness;
static const int kBarMarginTop;
struct Header {
int y;
int first_row;
QString text;
};
// Returns the items that are wholly or partially inside the rect.
QVector<QModelIndex> IntersectingItems(const QRect& rect) const;
// Returns the index of the item above (d=-1) or below (d=+1) the given item.
int IndexAboveOrBelow(int index, int d) const;
MultiSortFilterProxy* proxy_model_;
QVector<QRect> visual_rects_;
QVector<Header> headers_;
const int default_header_height_;
int header_spacing_;
int header_indent_;
int item_indent_;
QString header_text_;
};
#endif // GROUPEDICONVIEW_H