src/warptreeview.h

/* This file is part of WarpTree
 *
 * Copyright (C) 2007 Jos van den Oever <jos@vandenoever.info>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */
#ifndef WARPTREEVIEW_H
#define WARPTREEVIEW_H

#include <QtGui/QAbstractItemView>

class WarpTreeNode {
public:
    WarpTreeNode(int d) :depth(d) {}
    QModelIndex index;
    QRect rect;
    int depth;
};

class WarpNodePainter : public QObject {
private:
    const QFontMetrics fontmetrics;
    const QWidget* widget;
public:
    WarpNodePainter(QWidget*);
    virtual ~WarpNodePainter();
    virtual QSize getLabelSize(const QModelIndex& index, int depth) const;
    virtual void paintBackground(QPainter& painter, const QSize& size,
        const WarpTreeNode& activeNode);
    virtual void paintNode(QPainter& painter, const WarpTreeNode& node,
        bool active, bool loaded, bool hovered);
    virtual void paintLine(QPainter& painter, const QPoint& parent,
        const QPoint& node, int depth);
};

class WarpTreeView : public QAbstractItemView {
public:
    class Private;
private:
    Private* p;
public:
    WarpTreeView(QWidget* p = 0);
    ~WarpTreeView();
    QRect visualRect(const QModelIndex&) const;
    void scrollTo(const QModelIndex&, QAbstractItemView::ScrollHint);
    QModelIndex indexAt(const QPoint&) const;
    QModelIndex moveCursor(QAbstractItemView::CursorAction,
        Qt::KeyboardModifiers);
    int horizontalOffset() const;
    int verticalOffset() const;
    bool isIndexHidden(const QModelIndex&) const;
    void setSelection(const QRect&, QFlags<QItemSelectionModel::SelectionFlag>);
    QRegion visualRegionForSelection(const QItemSelection&) const;
    void currentChanged(const QModelIndex& current,
        const QModelIndex& previous);
    void paintEvent(QPaintEvent* e);
    void resizeEvent(QResizeEvent* e);
    void mouseMoveEvent(QMouseEvent* event);
    void mousePressEvent(QMouseEvent* event);
    void mouseReleaseEvent(QMouseEvent* event);
    void wheelEvent(QWheelEvent* event);
    void setModel(QAbstractItemModel* model);
    void setRootIndex(const QModelIndex& index);
    void setWarpNodePainter(WarpNodePainter* painter);
    void setAntialiased(bool a);
    bool antialiased() const;
};

#endif

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