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Tweaked look of image object placeholders.

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This commit is contained in:
Jim Evins
2019-07-21 13:17:45 -04:00
parent 3cfda79b82
commit 5b9eba9af9
3 changed files with 69 additions and 0 deletions
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model/ModelImageObject.cpp
+62
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@@ -40,6 +40,17 @@ namespace glabels
QImage* ModelImageObject::smDefaultImage = nullptr;
//
// Private
//
namespace
{
const QColor fillColor = QColor( 224, 224, 224, 255 );
const QColor labelColor = QColor( 102, 102, 102, 255 );
const Distance pad = Distance::pt(2);
}
///
/// Constructor
///
@@ -436,10 +447,61 @@ namespace glabels
if ( inEditor && (mFilenameNode.isField() || (!mImage && !mSvgRenderer) ) )
{
//
// Render default place holder image
//
painter->save();
painter->setRenderHint( QPainter::SmoothPixmapTransform, false );
painter->drawImage( destRect, *smDefaultImage );
painter->restore();
//
// Print label on top of place holder image, if we have room
//
if ( (mW > 6*pad) && (mH > 4*pad) )
{
QString labelText = tr("No image");
if ( mFilenameNode.isField() )
{
labelText = QString( "${%1}" ).arg( mFilenameNode.data() );
}
// Determine font size for labelText
QFont font( "Sans" );
font.setPointSizeF( 6 );
QFontMetricsF fm( font );
QRectF textRect = fm.boundingRect( labelText );
double wPts = (mW - 2*pad).pt();
double hPts = (mH - 2*pad).pt();
if ( (wPts < textRect.width()) || (hPts < textRect.height()) )
{
double scaleX = wPts / textRect.width();
double scaleY = hPts / textRect.height();
font.setPointSizeF( 6 * std::min( scaleX, scaleY ) );
}
// Render hole for text (font size may have changed above)
fm = QFontMetricsF( font );
textRect = fm.boundingRect( labelText );
QRectF holeRect( (mW.pt() - textRect.width())/2 - pad.pt(),
(mH.pt() - textRect.height())/2 - pad.pt(),
textRect.width() + 2*pad.pt(),
textRect.height() + 2*pad.pt() );
painter->setPen( Qt::NoPen );
painter->setBrush( QBrush( fillColor ) );
painter->drawRect( holeRect );
// Render text
painter->setFont( font );
painter->setPen( QPen( labelColor ) );
painter->drawText( QRectF( 0, 0, mW.pt(), mH.pt() ),
Qt::AlignCenter,
labelText );
}
}
else if ( mImage )
{