QgsComposerLabel::QgsComposerLabel( QgsComposition *composition )
: QgsComposerItem( composition )
, mHtmlState( 0 )
, mHtmlUnitsToMM( 1.0 )
, mHtmlLoaded( false )
, mMarginX( 1.0 )
, mMarginY( 1.0 )
, mFontColor( QColor( 0, 0, 0 ) )
, mHAlignment( Qt::AlignLeft )
, mVAlignment( Qt::AlignTop )
, mExpressionLayer( nullptr )
, mDistanceArea( nullptr )
{
mDistanceArea = new QgsDistanceArea();
mHtmlUnitsToMM = htmlUnitsToMM();
//get default composer font from settings
QSettings settings;
QString defaultFontString = settings.value( QStringLiteral( "/Composer/defaultFont" ) ).toString();
if ( !defaultFontString.isEmpty() )
{
mFont.setFamily( defaultFontString );
}
//default to a 10 point font size
mFont.setPointSizeF( 10 );
//default to no background
setBackgroundEnabled( false );
//a label added while atlas preview is enabled needs to have the expression context set,
//otherwise fields in the label aren't correctly evaluated until atlas preview feature changes (#9457)
refreshExpressionContext();
if ( mComposition )
{
//connect to atlas feature changes
//to update the expression context
connect( &mComposition->atlasComposition(), SIGNAL( featureChanged( QgsFeature* ) ), this, SLOT( refreshExpressionContext() ) );
}
mWebPage = new QgsWebPage( this );
mWebPage->setIdentifier( tr( "Composer label item" ) );
mWebPage->setNetworkAccessManager( QgsNetworkAccessManager::instance() );
//This makes the background transparent. Found on http://blog.qt.digia.com/blog/2009/06/30/transparent-qwebview-or-qwebpage/
QPalette palette = mWebPage->palette();
palette.setBrush( QPalette::Base, Qt::transparent );
mWebPage->setPalette( palette );
//webPage->setAttribute(Qt::WA_OpaquePaintEvent, false); //this does not compile, why ?
mWebPage->mainFrame()->setZoomFactor( 10.0 );
mWebPage->mainFrame()->setScrollBarPolicy( Qt::Horizontal, Qt::ScrollBarAlwaysOff );
mWebPage->mainFrame()->setScrollBarPolicy( Qt::Vertical, Qt::ScrollBarAlwaysOff );
connect( mWebPage, SIGNAL( loadFinished( bool ) ), SLOT( loadingHtmlFinished( bool ) ) );
}
QgsComposerLabel::QgsComposerLabel( QgsComposition *composition )
: QgsComposerItem( composition )
, mHtmlState( 0 )
, mHtmlUnitsToMM( 1.0 )
, mHtmlLoaded( false )
, mMarginX( 1.0 )
, mMarginY( 1.0 )
, mFontColor( QColor( 0, 0, 0 ) )
, mHAlignment( Qt::AlignLeft )
, mVAlignment( Qt::AlignTop )
, mExpressionLayer( nullptr )
, mDistanceArea( nullptr )
{
mDistanceArea = new QgsDistanceArea();
mHtmlUnitsToMM = htmlUnitsToMM();
//get default composer font from settings
QSettings settings;
QString defaultFontString = settings.value( "/Composer/defaultFont" ).toString();
if ( !defaultFontString.isEmpty() )
{
mFont.setFamily( defaultFontString );
}
//default to a 10 point font size
mFont.setPointSizeF( 10 );
//default to no background
setBackgroundEnabled( false );
//a label added while atlas preview is enabled needs to have the expression context set,
//otherwise fields in the label aren't correctly evaluated until atlas preview feature changes (#9457)
refreshExpressionContext();
if ( mComposition )
{
//connect to atlas feature changes
//to update the expression context
connect( &mComposition->atlasComposition(), SIGNAL( featureChanged( QgsFeature* ) ), this, SLOT( refreshExpressionContext() ) );
}
}
QgsLayoutItemLabel::QgsLayoutItemLabel( QgsLayout *layout )
: QgsLayoutItem( layout )
{
mDistanceArea.reset( new QgsDistanceArea() );
mHtmlUnitsToLayoutUnits = htmlUnitsToLayoutUnits();
//get default layout font from settings
QgsSettings settings;
QString defaultFontString = settings.value( QStringLiteral( "LayoutDesigner/defaultFont" ), QVariant(), QgsSettings::Gui ).toString();
if ( !defaultFontString.isEmpty() )
{
mFont.setFamily( defaultFontString );
}
//default to a 10 point font size
mFont.setPointSizeF( 10 );
//default to no background
setBackgroundEnabled( false );
//a label added while atlas preview is enabled needs to have the expression context set,
//otherwise fields in the label aren't correctly evaluated until atlas preview feature changes (#9457)
refreshExpressionContext();
mWebPage.reset( new QgsWebPage( this ) );
mWebPage->setIdentifier( tr( "Layout label item" ) );
mWebPage->setNetworkAccessManager( QgsNetworkAccessManager::instance() );
//This makes the background transparent. Found on http://blog.qt.digia.com/blog/2009/06/30/transparent-qwebview-or-qwebpage/
QPalette palette = mWebPage->palette();
palette.setBrush( QPalette::Base, Qt::transparent );
mWebPage->setPalette( palette );
mWebPage->mainFrame()->setZoomFactor( 10.0 );
mWebPage->mainFrame()->setScrollBarPolicy( Qt::Horizontal, Qt::ScrollBarAlwaysOff );
mWebPage->mainFrame()->setScrollBarPolicy( Qt::Vertical, Qt::ScrollBarAlwaysOff );
connect( mWebPage.get(), &QWebPage::loadFinished, this, &QgsLayoutItemLabel::loadingHtmlFinished );
}
void QgsLayoutItemLabel::refresh()
{
QgsLayoutItem::refresh();
refreshExpressionContext();
}
