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Fix oversized pixelated tooltip previews for text items in style model

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This commit is contained in:
Nyall Dawson 2023-06-22 08:49:49 +10:00
parent 357a546968
commit d9815e7019
1 changed files with 6 additions and 4 deletions
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10
src/core/symbology/qgsstylemodel.cpp
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@ -173,11 +173,12 @@ QVariant QgsStyleModel::data( const QModelIndex &index, int role ) const
int width = static_cast< int >( Qgis::UI_SCALE_FACTOR * QFontMetrics( data( index, Qt::FontRole ).value< QFont >() ).horizontalAdvance( 'X' ) * 23 );
int height = static_cast< int >( width / 1.61803398875 ); // golden ratio
const QgsTextFormat format = mStyle->textFormat( name );
QPixmap pm = QgsTextFormat::textFormatPreviewPixmap( format, QSize( width, height ), QString(), height / 20 );
const double maxDevicePixelRatio = *std::max_element( mDevicePixelRatios.constBegin(), mDevicePixelRatios.constEnd() );
QPixmap pm = QgsTextFormat::textFormatPreviewPixmap( format, QSize( width, height ), QString(), height / 20, maxDevicePixelRatio );
QByteArray data;
QBuffer buffer( &data );
pm.save( &buffer, "PNG", 100 );
tooltip += QStringLiteral( "<p><img src='data:image/png;base64, %3'>" ).arg( QString( data.toBase64() ) );
tooltip += QStringLiteral( "<p><img src='data:image/png;base64, %3' width=\"%4\">" ).arg( QString( data.toBase64() ) ).arg( width );
break;
}
@ -185,12 +186,13 @@ QVariant QgsStyleModel::data( const QModelIndex &index, int role ) const
{
int width = static_cast< int >( Qgis::UI_SCALE_FACTOR * QFontMetrics( data( index, Qt::FontRole ).value< QFont >() ).horizontalAdvance( 'X' ) * 23 );
int height = static_cast< int >( width / 1.61803398875 ); // golden ratio
const double maxDevicePixelRatio = *std::max_element( mDevicePixelRatios.constBegin(), mDevicePixelRatios.constEnd() );
const QgsPalLayerSettings settings = mStyle->labelSettings( name );
QPixmap pm = QgsPalLayerSettings::labelSettingsPreviewPixmap( settings, QSize( width, height ), QString(), height / 20 );
QPixmap pm = QgsPalLayerSettings::labelSettingsPreviewPixmap( settings, QSize( width, height ), QString(), height / 20, maxDevicePixelRatio );
QByteArray data;
QBuffer buffer( &data );
pm.save( &buffer, "PNG", 100 );
tooltip += QStringLiteral( "<p><img src='data:image/png;base64, %3'>" ).arg( QString( data.toBase64() ) );
tooltip += QStringLiteral( "<p><img src='data:image/png;base64, %3' width=\"%4\">" ).arg( QString( data.toBase64() ) ).arg( width );
break;
}