napcok/calamares
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Full selection and hover support in labels view.

Browse Source
This commit is contained in:
Teo Mrnjavac 2015-12-16 18:22:36 +01:00
parent fd33eb71ba
commit f2093be353
2 changed files with 163 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

167
src/modules/partition/gui/PartitionLabelsView.cpp
View File

@ -31,6 +31,7 @@
#include <KFormat>
// Qt
#include <QMouseEvent>
#include <QPainter>
@ -38,6 +39,7 @@ static const int LAYOUT_MARGIN = 4;
static const int LABEL_PARTITION_SQUARE_MARGIN =
qMax( QFontMetrics( CalamaresUtils::defaultFont() ).ascent() - 2, 18 );
static const int LABELS_MARGIN = LABEL_PARTITION_SQUARE_MARGIN;
static const int CORNER_RADIUS = 2;
QStringList
@ -99,9 +101,16 @@ PartitionLabelsView::paintEvent( QPaintEvent* event )
painter.fillRect( rect(), palette().window() );
painter.setRenderHint( QPainter::Antialiasing );
QRect labelsRect = rect().adjusted( 0, LAYOUT_MARGIN, 0, 0 );
QRect lRect = labelsRect();
drawLabels( &painter, labelsRect, QModelIndex() );
drawLabels( &painter, lRect, QModelIndex() );
}
QRect
PartitionLabelsView::labelsRect() const
{
return rect().adjusted( 0, LAYOUT_MARGIN, 0, 0 );
}
@ -112,7 +121,21 @@ drawPartitionSquare( QPainter* painter, const QRect& rect, const QBrush& brush )
painter->setRenderHint( QPainter::Antialiasing, true );
painter->setPen( QPalette().shadow().color() );
painter->translate( .5, .5 );
painter->drawRoundedRect( rect.adjusted( 0, 0, -1, -1 ), 2, 2 );
painter->drawRoundedRect( rect.adjusted( 0, 0, -1, -1 ), CORNER_RADIUS, CORNER_RADIUS );
painter->translate( -.5, -.5 );
}
static void
drawSelectionSquare( QPainter* painter, const QRect& rect, const QBrush& brush )
{
painter->setPen( QPen( brush.color().darker(), 1 ) );
QColor highlightColor = QPalette().highlight().color();
highlightColor = highlightColor.lighter( 500 );
highlightColor.setAlpha( 120 );
painter->setBrush( highlightColor );
painter->translate( .5, .5 );
painter->drawRoundedRect( rect.adjusted( 0, 0, -1, -1 ), CORNER_RADIUS, CORNER_RADIUS );
painter->translate( -.5, -.5 );
}
@ -212,7 +235,33 @@ PartitionLabelsView::drawLabels( QPainter* painter,
label_x = rect.x();
label_y += labelSize.height() + labelSize.height() / 4;
}
drawLabel( painter, texts, labelColor, QPoint( label_x, label_y ) );
// Draw hover
if ( selectionMode() != QAbstractItemView::NoSelection && // no hover without selection
m_hoveredIndex.isValid() &&
index == m_hoveredIndex )
{
painter->save();
QRect labelRect( QPoint( label_x, label_y ), labelSize );
labelRect.adjust( 0, -LAYOUT_MARGIN, 0, -2*LAYOUT_MARGIN );
painter->translate( 0.5, 0.5 );
QRect hoverRect = labelRect.adjusted( 0, 0, -1, -1 );
painter->setBrush( QPalette().background().color().lighter( 102 ) );
painter->setPen( Qt::NoPen );
painter->drawRoundedRect( hoverRect, CORNER_RADIUS, CORNER_RADIUS );
painter->translate( -0.5, -0.5 );
painter->restore();
}
// Is this element the selected one?
bool sel = selectionMode() != QAbstractItemView::NoSelection &&
index.isValid() &&
selectionModel() &&
!selectionModel()->selectedIndexes().isEmpty() &&
selectionModel()->selectedIndexes().first() == index;
drawLabel( painter, texts, labelColor, QPoint( label_x, label_y ), sel );
label_x += labelSize.width() + LABELS_MARGIN;
}
@ -223,7 +272,7 @@ PartitionLabelsView::drawLabels( QPainter* painter,
QStringList texts = buildUnknownDisklabelTexts( modl->device() );
QSize labelSize = sizeForLabel( texts );
QColor labelColor = ColorUtils::unknownDisklabelColor();
drawLabel( painter, texts, labelColor, QPoint( rect.x(), rect.y() ) );
drawLabel( painter, texts, labelColor, QPoint( rect.x(), rect.y() ), false /*can't be selected*/ );
}
}
@ -294,7 +343,8 @@ void
PartitionLabelsView::drawLabel( QPainter* painter,
const QStringList& text,
const QColor& color,
const QPoint& pos )
const QPoint& pos,
bool selected )
{
painter->setPen( Qt::black );
int vertOffset = 0;
@ -309,11 +359,16 @@ PartitionLabelsView::drawLabel( QPainter* painter,
painter->setPen( Qt::gray );
width = qMax( width, textSize.width() );
}
drawPartitionSquare( painter, QRect( pos.x(),
pos.y() - 3,
LABEL_PARTITION_SQUARE_MARGIN - 5,
LABEL_PARTITION_SQUARE_MARGIN - 5 ),
color );
QRect partitionSquareRect( pos.x(),
pos.y() - 3,
LABEL_PARTITION_SQUARE_MARGIN - 5,
LABEL_PARTITION_SQUARE_MARGIN - 5 );
drawPartitionSquare( painter, partitionSquareRect, color );
if ( selected )
drawSelectionSquare( painter, partitionSquareRect.adjusted( 2, 2, -2, -2 ), color );
painter->setPen( Qt::black );
}
@ -321,13 +376,68 @@ PartitionLabelsView::drawLabel( QPainter* painter,
QModelIndex
PartitionLabelsView::indexAt( const QPoint& point ) const
{
PartitionModel* modl = qobject_cast< PartitionModel* >( model() );
if ( !modl )
return QModelIndex();
QModelIndexList indexesToDraw = getIndexesToDraw( QModelIndex() );
QRect rect = this->rect();
int label_x = rect.x();
int label_y = rect.y();
foreach ( const QModelIndex& index, indexesToDraw )
{
QStringList texts = buildTexts( index );
QSize labelSize = sizeForLabel( texts );
if ( label_x + labelSize.width() > rect.width() ) //wrap to new line if overflow
{
label_x = rect.x();
label_y += labelSize.height() + labelSize.height() / 4;
}
QRect labelRect( QPoint( label_x, label_y ), labelSize );
if ( labelRect.contains( point ) )
return index;
label_x += labelSize.width() + LABELS_MARGIN;
}
return QModelIndex();
}
QRect
PartitionLabelsView::visualRect( const QModelIndex& index ) const
PartitionLabelsView::visualRect( const QModelIndex& idx ) const
{
PartitionModel* modl = qobject_cast< PartitionModel* >( model() );
if ( !modl )
return QRect();
QModelIndexList indexesToDraw = getIndexesToDraw( QModelIndex() );
QRect rect = this->rect();
int label_x = rect.x();
int label_y = rect.y();
foreach ( const QModelIndex& index, indexesToDraw )
{
QStringList texts = buildTexts( index );
QSize labelSize = sizeForLabel( texts );
if ( label_x + labelSize.width() > rect.width() ) //wrap to new line if overflow
{
label_x = rect.x();
label_y += labelSize.height() + labelSize.height() / 4;
}
if ( idx.isValid() && idx == index )
return QRect( QPoint( label_x, label_y ), labelSize );
label_x += labelSize.width() + LABELS_MARGIN;
}
return QRect();
}
@ -356,6 +466,8 @@ PartitionLabelsView::verticalOffset() const
void
PartitionLabelsView::scrollTo( const QModelIndex& index, ScrollHint hint )
{
Q_UNUSED( index )
Q_UNUSED( hint )
}
@ -384,6 +496,37 @@ PartitionLabelsView::isIndexHidden( const QModelIndex& index ) const
void
PartitionLabelsView::setSelection( const QRect& rect, QItemSelectionModel::SelectionFlags flags )
{
selectionModel()->select( indexAt( rect.topLeft() ), flags );
}
void
PartitionLabelsView::mouseMoveEvent( QMouseEvent* event )
{
QModelIndex candidateIndex = indexAt( event->pos() );
QPersistentModelIndex oldHoveredIndex = m_hoveredIndex;
if ( candidateIndex.isValid() )
{
m_hoveredIndex = candidateIndex;
}
else
m_hoveredIndex = QModelIndex();
if ( oldHoveredIndex != m_hoveredIndex )
{
viewport()->repaint();
}
}
void
PartitionLabelsView::leaveEvent( QEvent* event )
{
if ( m_hoveredIndex.isValid() )
{
m_hoveredIndex = QModelIndex();
viewport()->repaint();
}
}

10
src/modules/partition/gui/PartitionLabelsView.h
View File

@ -43,7 +43,7 @@ public:
// QAbstractItemView API
QModelIndex indexAt( const QPoint& point ) const override;
QRect visualRect( const QModelIndex& index ) const override;
QRect visualRect( const QModelIndex& idx ) const override;
void scrollTo( const QModelIndex& index, ScrollHint hint = EnsureVisible ) override;
void setCustomNewRootLabel( const QString& text );
@ -57,17 +57,23 @@ protected:
QModelIndex moveCursor( CursorAction cursorAction, Qt::KeyboardModifiers modifiers ) override;
void setSelection( const QRect& rect, QItemSelectionModel::SelectionFlags flags ) override;
void mouseMoveEvent( QMouseEvent* event ) override;
void leaveEvent( QEvent* event ) override;
protected slots:
void updateGeometries() override;
private:
QRect labelsRect() const;
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 );
void drawLabel( QPainter* painter, const QStringList& text, const QColor& color,
const QPoint& pos , bool selected );
QModelIndexList getIndexesToDraw( const QModelIndex& parent ) const;
QStringList buildTexts( const QModelIndex& index ) const;
QString m_customNewRootLabel;
QPersistentModelIndex m_hoveredIndex;
};
#endif // PARTITIONLABELSVIEW_H