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Split out Labels view from Bars view.

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Both are QAbstractItemViews and can be used on top of a PartitionModel,
together or separately.
This commit is contained in:
Teo Mrnjavac 2015-12-03 19:38:56 +01:00
parent b65fe87503
commit eed8d3b83b
5 changed files with 405 additions and 209 deletions
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71
src/modules/partition/gui/PartitionLabelsView.h Normal file
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/* === This file is part of Calamares - <http://github.com/calamares> ===
*
* Copyright 2014, Aurélien Gâteau <agateau@kde.org>
* Copyright 2015, Teo Mrnjavac <teo@kde.org>
*
* Calamares 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.
*
* Calamares 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 Calamares. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PARTITIONLABELSVIEW_H
#define PARTITIONLABELSVIEW_H
#include <QAbstractItemView>
/**
* A Qt model view which displays colored labels for partitions.
*
* It has been created to be used with a PartitionModel instance, but does not
* call any PartitionModel-specific methods: it should be usable with other
* models as long as they provide the same roles PartitionModel provides.
*/
class PartitionLabelsView : public QAbstractItemView
{
public:
explicit PartitionLabelsView( QWidget* parent = nullptr );
virtual ~PartitionLabelsView();
QSize minimumSizeHint() const override;
QSize sizeHint() const override;
void paintEvent( QPaintEvent* event ) override;
// QAbstractItemView API
QModelIndex indexAt( const QPoint& point ) const override;
QRect visualRect( const QModelIndex& index ) const override;
void scrollTo( const QModelIndex& index, ScrollHint hint = EnsureVisible ) override;
void setLabelsVisible( bool visible = true );
protected:
// QAbstractItemView API
QRegion visualRegionForSelection( const QItemSelection& selection ) const override;
int horizontalOffset() const override;
int verticalOffset() const override;
bool isIndexHidden( const QModelIndex& index ) const override;
QModelIndex moveCursor( CursorAction cursorAction, Qt::KeyboardModifiers modifiers ) override;
void setSelection( const QRect& rect, QItemSelectionModel::SelectionFlags flags ) override;
protected slots:
void updateGeometries() override;
private:
void drawLabels( QPainter* painter, const QRect& rect, const QModelIndex& parent );
QSize sizeForAllLabels( int maxLineWidth ) const;
QSize sizeForLabel( const QStringList& text ) const;
void drawLabel( QPainter* painter, const QStringList& text, const QColor& color, const QPoint& pos );
QModelIndexList getIndexesToDraw( const QModelIndex& parent ) const;
};
#endif // PARTITIONLABELSVIEW_H