QgsComposerLabel::QgsComposerLabel( QgsComposition *composition ):
QgsComposerItem( composition ), mHtmlState( 0 ), mHtmlUnitsToMM( 1.0 ),
mHtmlLoaded( false ), mMargin( 1.0 ), mFontColor( QColor( 0, 0, 0 ) ),
mHAlignment( Qt::AlignLeft ), mVAlignment( Qt::AlignTop ),
mExpressionFeature( 0 ), mExpressionLayer( 0 )
{
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 );
if ( mComposition && mComposition->atlasMode() == QgsComposition::PreviewAtlas )
{
//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)
setExpressionContext( mComposition->atlasComposition().currentFeature(), mComposition->atlasComposition().coverageLayer() );
}
//connect to atlas feature changes
//to update the expression context
connect( &mComposition->atlasComposition(), SIGNAL( featureChanged( QgsFeature* ) ), this, SLOT( refreshExpressionContext() ) );
}
QgsComposerHtml::QgsComposerHtml( QgsComposition* c, bool createUndoCommands )
: QgsComposerMultiFrame( c, createUndoCommands )
, mContentMode( QgsComposerHtml::Url )
, mWebPage( nullptr )
, mLoaded( false )
, mHtmlUnitsToMM( 1.0 )
, mRenderedPage( nullptr )
, mEvaluateExpressions( true )
, mUseSmartBreaks( true )
, mMaxBreakDistance( 10 )
, mExpressionLayer( nullptr )
, mDistanceArea( nullptr )
, mEnableUserStylesheet( false )
, mFetcher( nullptr )
{
mDistanceArea = new QgsDistanceArea();
mHtmlUnitsToMM = htmlUnitsToMM();
mWebPage = new QgsWebPage();
mWebPage->setIdentifier( tr( "Composer HTML item" ) );
mWebPage->mainFrame()->setScrollBarPolicy( Qt::Horizontal, Qt::ScrollBarAlwaysOff );
mWebPage->mainFrame()->setScrollBarPolicy( Qt::Vertical, Qt::ScrollBarAlwaysOff );
//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->setNetworkAccessManager( QgsNetworkAccessManager::instance() );
QObject::connect( mWebPage, SIGNAL( loadFinished( bool ) ), this, SLOT( frameLoaded( bool ) ) );
if ( mComposition )
{
QObject::connect( mComposition, SIGNAL( itemRemoved( QgsComposerItem* ) ), this, SLOT( handleFrameRemoval( QgsComposerItem* ) ) );
}
// data defined strings
mDataDefinedNames.insert( QgsComposerObject::SourceUrl, QString( "dataDefinedSourceUrl" ) );
if ( mComposition && mComposition->atlasMode() == QgsComposition::PreviewAtlas )
{
//a html item added while atlas preview is enabled needs to have the expression context set,
//otherwise fields in the html aren't correctly evaluated until atlas preview feature changes (#9457)
setExpressionContext( mComposition->atlasComposition().feature(), mComposition->atlasComposition().coverageLayer() );
}
//connect to atlas feature changes
//to update the expression context
connect( &mComposition->atlasComposition(), SIGNAL( featureChanged( QgsFeature* ) ), this, SLOT( refreshExpressionContext() ) );
mFetcher = new QgsNetworkContentFetcher();
connect( mFetcher, SIGNAL( finished() ), this, SLOT( frameLoaded() ) );
}
void QgsComposerHtml::refreshExpressionContext()
{
QgsVectorLayer * vl = nullptr;
QgsFeature feature;
if ( mComposition->atlasComposition().enabled() )
{
vl = mComposition->atlasComposition().coverageLayer();
}
if ( mComposition->atlasMode() != QgsComposition::AtlasOff )
{
feature = mComposition->atlasComposition().feature();
}
setExpressionContext( feature, vl );
loadHtml( true );
}
QgsComposerHtml::QgsComposerHtml( QgsComposition* c, bool createUndoCommands ): QgsComposerMultiFrame( c, createUndoCommands ),
mContentMode( QgsComposerHtml::Url ),
mWebPage( 0 ),
mLoaded( false ),
mHtmlUnitsToMM( 1.0 ),
mRenderedPage( 0 ),
mEvaluateExpressions( true ),
mUseSmartBreaks( true ),
mMaxBreakDistance( 10 ),
mExpressionFeature( 0 ),
mExpressionLayer( 0 ),
mEnableUserStylesheet( false )
{
mHtmlUnitsToMM = htmlUnitsToMM();
mWebPage = new QWebPage();
mWebPage->setNetworkAccessManager( QgsNetworkAccessManager::instance() );
QObject::connect( mWebPage, SIGNAL( loadFinished( bool ) ), this, SLOT( frameLoaded( bool ) ) );
if ( mComposition )
{
QObject::connect( mComposition, SIGNAL( itemRemoved( QgsComposerItem* ) ), this, SLOT( handleFrameRemoval( QgsComposerItem* ) ) );
}
// data defined strings
mDataDefinedNames.insert( QgsComposerObject::SourceUrl, QString( "dataDefinedSourceUrl" ) );
if ( mComposition && mComposition->atlasMode() == QgsComposition::PreviewAtlas )
{
//a html item added while atlas preview is enabled needs to have the expression context set,
//otherwise fields in the html aren't correctly evaluated until atlas preview feature changes (#9457)
setExpressionContext( mComposition->atlasComposition().currentFeature(), mComposition->atlasComposition().coverageLayer() );
}
//connect to atlas feature changes
//to update the expression context
connect( &mComposition->atlasComposition(), SIGNAL( featureChanged( QgsFeature* ) ), this, SLOT( refreshExpressionContext() ) );
}
QgsLayoutItemHtml::QgsLayoutItemHtml( QgsLayout *layout )
: QgsLayoutMultiFrame( layout )
{
mHtmlUnitsToLayoutUnits = htmlUnitsToLayoutUnits();
mWebPage = qgis::make_unique< QgsWebPage >();
mWebPage->setIdentifier( tr( "Layout HTML item" ) );
mWebPage->mainFrame()->setScrollBarPolicy( Qt::Horizontal, Qt::ScrollBarAlwaysOff );
mWebPage->mainFrame()->setScrollBarPolicy( Qt::Vertical, Qt::ScrollBarAlwaysOff );
//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->setNetworkAccessManager( QgsNetworkAccessManager::instance() );
#if 0 //TODO
if ( mLayout )
{
connect( mLayout, &QgsComposition::itemRemoved, this, &QgsComposerMultiFrame::handleFrameRemoval );
}
if ( mComposition && mComposition->atlasMode() == QgsComposition::PreviewAtlas )
{
//a html item added while atlas preview is enabled needs to have the expression context set,
//otherwise fields in the html aren't correctly evaluated until atlas preview feature changes (#9457)
setExpressionContext( mComposition->atlasComposition().feature(), mComposition->atlasComposition().coverageLayer() );
}
//connect to atlas feature changes
//to update the expression context
connect( &mComposition->atlasComposition(), &QgsAtlasComposition::featureChanged, this, &QgsLayoutItemHtml::refreshExpressionContext );
#endif
mFetcher = new QgsNetworkContentFetcher();
}
