int QgsLegendModel::addRasterLayerItems( QStandardItem* layerItem, QgsMapLayer* rlayer )
{
if ( !layerItem || !rlayer )
{
return 1;
}
QgsRasterLayer* rasterLayer = qobject_cast<QgsRasterLayer *>( rlayer );
if ( !rasterLayer )
{
return 2;
}
QList< QPair< QString, QColor > > rasterItemList = rasterLayer->legendSymbologyItems();
QList< QPair< QString, QColor > >::const_iterator itemIt = rasterItemList.constBegin();
for(; itemIt != rasterItemList.constEnd(); ++itemIt )
{
QgsComposerRasterSymbolItem* currentSymbolItem = new QgsComposerRasterSymbolItem( itemIt->first );
if( mHasTopLevelWindow )
{
QPixmap itemPixmap( 20, 20 );
itemPixmap.fill( itemIt->second );
currentSymbolItem->setIcon( QIcon( itemPixmap ) );
}
currentSymbolItem->setLayerID( rasterLayer->id() );
currentSymbolItem->setColor( itemIt->second );
int currentRowCount = layerItem->rowCount();
layerItem->setChild( currentRowCount, 0, currentSymbolItem );
}
return 0;
}
int QgsLegendModel::addRasterLayerItem( QStandardItem* layerItem, QgsMapLayer* rlayer )
{
if ( !layerItem || !rlayer )
{
return 1;
}
QgsRasterLayer* rasterLayer = qobject_cast<QgsRasterLayer *>( rlayer );
if ( !rasterLayer )
{
return 2;
}
QgsComposerRasterSymbolItem* currentSymbolItem = new QgsComposerRasterSymbolItem();
//use a vector symbol item without symbol
if ( mHasTopLevelWindow ) //only use QIcon / QPixmap if we have a running x-server
{
currentSymbolItem->setIcon( QIcon( rasterLayer->legendAsPixmap( true ) ) );
}
currentSymbolItem->setLayerID( rasterLayer->id() );
int currentRowCount = layerItem->rowCount();
layerItem->setChild( currentRowCount, 0, currentSymbolItem );
return 0;
}
QStandardItem* QgsComposerRasterSymbolItem::clone() const
{
QgsComposerRasterSymbolItem* cloneItem = new QgsComposerRasterSymbolItem();
*cloneItem = *this;
cloneItem->setLayerID( mLayerID );
return cloneItem;
}
int QgsLegendModel::addRasterLayerItems( QStandardItem* layerItem, QgsMapLayer* rlayer )
{
if ( !layerItem || !rlayer )
{
return 1;
}
QgsRasterLayer* rasterLayer = qobject_cast<QgsRasterLayer *>( rlayer );
if ( !rasterLayer )
{
return 2;
}
QList< QPair< QString, QColor > > rasterItemList = rasterLayer->legendSymbologyItems();
QList< QPair< QString, QColor > >::const_iterator itemIt = rasterItemList.constBegin();
int row = 0;
for ( ; itemIt != rasterItemList.constEnd(); ++itemIt )
{
QgsComposerRasterSymbolItem* currentSymbolItem = new QgsComposerRasterSymbolItem( itemIt->first );
QgsComposerRasterSymbolItem* oldSymbolItem = dynamic_cast<QgsComposerRasterSymbolItem*>( layerItem->child( row, 0 ) );
if ( oldSymbolItem )
{
currentSymbolItem->setUserText( oldSymbolItem->userText() );
currentSymbolItem->setText( currentSymbolItem->userText() );
}
if ( mHasTopLevelWindow )
{
QPixmap itemPixmap( 20, 20 );
itemPixmap.fill( itemIt->second );
currentSymbolItem->setIcon( QIcon( itemPixmap ) );
}
currentSymbolItem->setLayerID( rasterLayer->id() );
currentSymbolItem->setColor( itemIt->second );
int currentRowCount = layerItem->rowCount();
layerItem->setChild( currentRowCount, 0, currentSymbolItem );
row++;
}
// Delete following old items (if current number of items decreased)
for ( int i = layerItem->rowCount() - 1; i >= row; --i )
{
layerItem->removeRow( i );
}
return 0;
}
void QgsLegendModel::updateRasterSymbolItemText( QStandardItem* symbolItem )
{
QgsComposerRasterSymbolItem* rItem = dynamic_cast<QgsComposerRasterSymbolItem*>( symbolItem );
if ( !rItem ) return;
QgsComposerLayerItem* lItem = dynamic_cast<QgsComposerLayerItem*>( rItem->parent() );
if ( !lItem ) return;
QgsMapLayer* mapLayer = QgsMapLayerRegistry::instance()->mapLayer( lItem->layerID() );
if ( !mapLayer ) return;
QgsRasterLayer* rLayer = qobject_cast<QgsRasterLayer*>( mapLayer );
if ( !rLayer ) return;
QPair< QString, QColor> symbol = rLayer->legendSymbologyItems().value( symbolItem->row() );
QString label = rItem->userText().isEmpty() ? symbol.first : rItem->userText();
symbolItem->setText( label );
}
void QgsComposerLegend::drawLayerChildItems( QPainter* p, QStandardItem* layerItem, double& currentYCoord, double& maxXCoord, int layerOpacity )
{
if ( !layerItem )
{
return;
}
//Draw all symbols first and the texts after (to find out the x coordinate to have the text aligned)
QList<double> childYCoords;
QList<double> realItemHeights;
double textHeight = fontHeightCharacterMM( mItemFont, QChar( '0' ) );
double itemHeight = qMax( mSymbolHeight, textHeight );
double textAlignCoord = 0; //alignment for legend text
QStandardItem* currentItem;
int numChildren = layerItem->rowCount();
for ( int i = 0; i < numChildren; ++i )
{
//real symbol height. Can be different from standard height in case of point symbols
double realSymbolHeight;
double realItemHeight = itemHeight; //will be adjusted if realSymbolHeight turns out to be larger
currentYCoord += mSymbolSpace;
double currentXCoord = mBoxSpace;
currentItem = layerItem->child( i, 0 );
if ( !currentItem )
{
continue;
}
QgsSymbol* symbol = 0;
QgsComposerSymbolItem* symbolItem = dynamic_cast<QgsComposerSymbolItem*>( currentItem );
if ( symbolItem )
{
symbol = symbolItem->symbol();
}
QgsSymbolV2* symbolNg = 0;
QgsComposerSymbolV2Item* symbolV2Item = dynamic_cast<QgsComposerSymbolV2Item*>( currentItem );
if ( symbolV2Item )
{
symbolNg = symbolV2Item->symbolV2();
}
QgsComposerRasterSymbolItem* rasterItem = dynamic_cast<QgsComposerRasterSymbolItem*>( currentItem );
if ( symbol ) //item with symbol?
{
//draw symbol
drawSymbol( p, symbol, currentYCoord + ( itemHeight - mSymbolHeight ) / 2, currentXCoord, realSymbolHeight, layerOpacity );
realItemHeight = qMax( realSymbolHeight, itemHeight );
currentXCoord += mIconLabelSpace;
}
else if ( symbolNg ) //item with symbol NG?
{
drawSymbolV2( p, symbolNg, currentYCoord + ( itemHeight - mSymbolHeight ) / 2, currentXCoord, realSymbolHeight, layerOpacity );
realItemHeight = qMax( realSymbolHeight, itemHeight );
currentXCoord += mIconLabelSpace;
}
else if ( rasterItem )
{
if ( p )
{
p->setBrush( rasterItem->color() );
p->drawRect( QRectF( currentXCoord, currentYCoord + ( itemHeight - mSymbolHeight ) / 2, mSymbolWidth, mSymbolHeight ) );
}
currentXCoord += mSymbolWidth;
currentXCoord += mIconLabelSpace;
}
else //item with icon?
{
QIcon symbolIcon = currentItem->icon();
if ( !symbolIcon.isNull() && p )
{
symbolIcon.paint( p, currentXCoord, currentYCoord + ( itemHeight - mSymbolHeight ) / 2, mSymbolWidth, mSymbolHeight );
currentXCoord += mSymbolWidth;
currentXCoord += mIconLabelSpace;
}
}
childYCoords.push_back( currentYCoord );
realItemHeights.push_back( realItemHeight );
currentYCoord += realItemHeight;
textAlignCoord = qMax( currentXCoord, textAlignCoord );
}
maxXCoord = qMax( maxXCoord, textAlignCoord );
for ( int i = 0; i < numChildren; ++i )
{
if ( p )
{
p->setPen( QColor( 0, 0, 0 ) );
drawText( p, textAlignCoord, childYCoords.at( i ) + textHeight + ( realItemHeights.at( i ) - textHeight ) / 2, layerItem->child( i, 0 )->text(), mItemFont );
maxXCoord = qMax( maxXCoord, textAlignCoord + mBoxSpace + textWidthMillimeters( mItemFont, layerItem->child( i, 0 )->text() ) );
}
}
}