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qgscomposition.cpp
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qgscomposition.cpp
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/***************************************************************************
qgscomposition.cpp
-------------------
begin : January 2005
copyright : (C) 2005 by Radim Blazek
email : blazek@itc.it
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include <stdexcept>
#include "qgscomposition.h"
#include "qgscomposeritem.h"
#include "qgscomposerarrow.h"
#include "qgscomposerframe.h"
#include "qgscomposerhtml.h"
#include "qgscomposerlabel.h"
#include "qgscomposerlegend.h"
#include "qgscomposermap.h"
#include "qgscomposeritemgroup.h"
#include "qgscomposerpicture.h"
#include "qgscomposerscalebar.h"
#include "qgscomposershape.h"
#include "qgscomposerlabel.h"
#include "qgscomposerattributetable.h"
#include "qgsaddremovemultiframecommand.h"
#include "qgscomposermultiframecommand.h"
#include "qgslogger.h"
#include "qgspaintenginehack.h"
#include "qgspaperitem.h"
#include "qgsgeometry.h"
#include "qgsvectorlayer.h"
#include "qgsvectordataprovider.h"
#include "qgsexpression.h"
#include <QDomDocument>
#include <QDomElement>
#include <QGraphicsRectItem>
#include <QPainter>
#include <QPrinter>
#include <QSettings>
#include <QDir>
QgsComposition::QgsComposition( QgsMapRenderer* mapRenderer ) :
QGraphicsScene( 0 ), mMapRenderer( mapRenderer ), mPlotStyle( QgsComposition::Preview ), mPageWidth( 297 ), mPageHeight( 210 ), mSpaceBetweenPages( 10 ), mPrintAsRaster( false ), mSelectionTolerance( 0.0 ),
mSnapToGrid( false ), mSnapGridResolution( 10.0 ), mSnapGridOffsetX( 0.0 ), mSnapGridOffsetY( 0.0 ), mAlignmentSnap( true ), mAlignmentSnapTolerance( 2 ),
mActiveItemCommand( 0 ), mActiveMultiFrameCommand( 0 ), mAtlasComposition( this )
{
setBackgroundBrush( Qt::gray );
addPaperItem();
mPrintResolution = 300; //hardcoded default
loadSettings();
}
QgsComposition::QgsComposition():
QGraphicsScene( 0 ), mMapRenderer( 0 ), mPlotStyle( QgsComposition::Preview ), mPageWidth( 297 ), mPageHeight( 210 ), mSpaceBetweenPages( 10 ), mPrintAsRaster( false ),
mSelectionTolerance( 0.0 ), mSnapToGrid( false ), mSnapGridResolution( 10.0 ), mSnapGridOffsetX( 0.0 ), mSnapGridOffsetY( 0.0 ), mAlignmentSnap( true ),
mAlignmentSnapTolerance( 2 ), mActiveItemCommand( 0 ), mActiveMultiFrameCommand( 0 ), mAtlasComposition( this )
{
loadSettings();
}
QgsComposition::~QgsComposition()
{
removePaperItems();
deleteAndRemoveMultiFrames();
// make sure that all composer items are removed before
// this class is deconstructed - to avoid segfaults
// when composer items access in destructor composition that isn't valid anymore
clear();
delete mActiveItemCommand;
delete mActiveMultiFrameCommand;
}
void QgsComposition::setPaperSize( double width, double height )
{
mPageWidth = width;
mPageHeight = height;
double currentY = 0;
for ( int i = 0; i < mPages.size(); ++i )
{
mPages.at( i )->setSceneRect( QRectF( 0, currentY, width, height ) );
currentY += ( height + mSpaceBetweenPages );
}
}
double QgsComposition::paperHeight() const
{
return mPageHeight;
}
double QgsComposition::paperWidth() const
{
return mPageWidth;
}
void QgsComposition::setNumPages( int pages )
{
int currentPages = numPages();
int diff = pages - currentPages;
if ( diff >= 0 )
{
for ( int i = 0; i < diff; ++i )
{
addPaperItem();
}
}
else
{
diff = -diff;
for ( int i = 0; i < diff; ++i )
{
delete mPages.last();
mPages.removeLast();
}
}
// update the corresponding variable
QgsExpression::setSpecialColumn( "$numpages", QVariant(( int )numPages() ) );
emit nPagesChanged();
}
int QgsComposition::numPages() const
{
return mPages.size();
}
QgsComposerItem* QgsComposition::composerItemAt( const QPointF & position )
{
QList<QGraphicsItem*> itemList;
if ( mSelectionTolerance <= 0.0 )
{
itemList = items( position );
}
else
{
itemList = items( QRectF( position.x() - mSelectionTolerance, position.y() - mSelectionTolerance, 2 * mSelectionTolerance, 2 * mSelectionTolerance ),
Qt::IntersectsItemShape, Qt::DescendingOrder );
}
QList<QGraphicsItem *>::iterator itemIt = itemList.begin();
for ( ; itemIt != itemList.end(); ++itemIt )
{
QgsComposerItem* composerItem = dynamic_cast<QgsComposerItem *>( *itemIt );
QgsPaperItem* paperItem = dynamic_cast<QgsPaperItem*>( *itemIt );
if ( composerItem && !paperItem )
{
return composerItem;
}
}
return 0;
}
int QgsComposition::pageNumberAt( const QPointF& position ) const
{
return position.y() / ( paperHeight() + spaceBetweenPages() );
}
int QgsComposition::itemPageNumber( const QgsComposerItem* item ) const
{
return pageNumberAt( QPointF( item->transform().dx(), item->transform().dy() ) );
}
QList<QgsComposerItem*> QgsComposition::selectedComposerItems()
{
QList<QgsComposerItem*> composerItemList;
QList<QGraphicsItem *> graphicsItemList = selectedItems();
QList<QGraphicsItem *>::iterator itemIter = graphicsItemList.begin();
for ( ; itemIter != graphicsItemList.end(); ++itemIter )
{
QgsComposerItem* composerItem = dynamic_cast<QgsComposerItem *>( *itemIter );
if ( composerItem )
{
composerItemList.push_back( composerItem );
}
}
return composerItemList;
}
QList<const QgsComposerMap*> QgsComposition::composerMapItems() const
{
QList<const QgsComposerMap*> resultList;
QList<QGraphicsItem *> itemList = items();
QList<QGraphicsItem *>::iterator itemIt = itemList.begin();
for ( ; itemIt != itemList.end(); ++itemIt )
{
const QgsComposerMap* composerMap = dynamic_cast<const QgsComposerMap *>( *itemIt );
if ( composerMap )
{
resultList.push_back( composerMap );
}
}
return resultList;
}
const QgsComposerMap* QgsComposition::getComposerMapById( int id ) const
{
QList<QGraphicsItem *> itemList = items();
QList<QGraphicsItem *>::iterator itemIt = itemList.begin();
for ( ; itemIt != itemList.end(); ++itemIt )
{
const QgsComposerMap* composerMap = dynamic_cast<const QgsComposerMap *>( *itemIt );
if ( composerMap )
{
if ( composerMap->id() == id )
{
return composerMap;
}
}
}
return 0;
}
const QgsComposerHtml* QgsComposition::getComposerHtmlByItem( QgsComposerItem *item ) const
{
// an html item will be a composer frame and if it is we can try to get
// its multiframe parent and then try to cast that to a composer html
const QgsComposerFrame* composerFrame =
dynamic_cast<const QgsComposerFrame *>( item );
if ( composerFrame )
{
const QgsComposerMultiFrame * mypMultiFrame = composerFrame->multiFrame();
const QgsComposerHtml* composerHtml =
dynamic_cast<const QgsComposerHtml *>( mypMultiFrame );
if ( composerHtml )
{
return composerHtml;
}
}
return 0;
}
const QgsComposerItem* QgsComposition::getComposerItemById( QString theId ) const
{
QList<QGraphicsItem *> itemList = items();
QList<QGraphicsItem *>::iterator itemIt = itemList.begin();
for ( ; itemIt != itemList.end(); ++itemIt )
{
const QgsComposerItem* mypItem = dynamic_cast<const QgsComposerItem *>( *itemIt );
if ( mypItem )
{
if ( mypItem->id() == theId )
{
return mypItem;
}
}
}
return 0;
}
/*
const QgsComposerItem* QgsComposition::getComposerItemByUuid( QString theUuid, bool inAllComposers ) const
{
//This does not work since it seems impossible to get the QgisApp::instance() from here... Is there a workaround ?
QSet<QgsComposer*> composers = QSet<QgsComposer*>();
if( inAllComposers )
{
composers = QgisApp::instance()->printComposers();
}
else
{
composers.insert( this )
}
QSet<QgsComposer*>::const_iterator it = composers.constBegin();
for ( ; it != composers.constEnd(); ++it )
{
QList<QGraphicsItem *> itemList = ( *it )->items();
QList<QGraphicsItem *>::iterator itemIt = itemList.begin();
for ( ; itemIt != itemList.end(); ++itemIt )
{
const QgsComposerItem* mypItem = dynamic_cast<const QgsComposerItem *>( *itemIt );
if ( mypItem )
{
if ( mypItem->uuid() == theUuid )
{
return mypItem;
}
}
}
}
return 0;
}
*/
const QgsComposerItem* QgsComposition::getComposerItemByUuid( QString theUuid ) const
{
QList<QGraphicsItem *> itemList = items();
QList<QGraphicsItem *>::iterator itemIt = itemList.begin();
for ( ; itemIt != itemList.end(); ++itemIt )
{
const QgsComposerItem* mypItem = dynamic_cast<const QgsComposerItem *>( *itemIt );
if ( mypItem )
{
if ( mypItem->uuid() == theUuid )
{
return mypItem;
}
}
}
return 0;
}
int QgsComposition::pixelFontSize( double pointSize ) const
{
//in QgsComposition, one unit = one mm
double sizeMillimeters = pointSize * 0.3527;
return qRound( sizeMillimeters ); //round to nearest mm
}
double QgsComposition::pointFontSize( int pixelSize ) const
{
double sizePoint = pixelSize / 0.3527;
return sizePoint;
}
bool QgsComposition::writeXML( QDomElement& composerElem, QDomDocument& doc )
{
if ( composerElem.isNull() )
{
return false;
}
QDomElement compositionElem = doc.createElement( "Composition" );
compositionElem.setAttribute( "paperWidth", QString::number( mPageWidth ) );
compositionElem.setAttribute( "paperHeight", QString::number( mPageHeight ) );
compositionElem.setAttribute( "numPages", mPages.size() );
//snapping
if ( mSnapToGrid )
{
compositionElem.setAttribute( "snapping", "1" );
}
else
{
compositionElem.setAttribute( "snapping", "0" );
}
compositionElem.setAttribute( "snapGridResolution", QString::number( mSnapGridResolution ) );
compositionElem.setAttribute( "snapGridOffsetX", QString::number( mSnapGridOffsetX ) );
compositionElem.setAttribute( "snapGridOffsetY", QString::number( mSnapGridOffsetY ) );
compositionElem.setAttribute( "printResolution", mPrintResolution );
compositionElem.setAttribute( "printAsRaster", mPrintAsRaster );
compositionElem.setAttribute( "alignmentSnap", mAlignmentSnap ? 1 : 0 );
compositionElem.setAttribute( "alignmentSnapTolerance", mAlignmentSnapTolerance );
//save items except paper items and frame items (they are saved with the corresponding multiframe)
QList<QGraphicsItem*> itemList = items();
QList<QGraphicsItem*>::const_iterator itemIt = itemList.constBegin();
for ( ; itemIt != itemList.constEnd(); ++itemIt )
{
const QgsComposerItem* composerItem = dynamic_cast<const QgsComposerItem*>( *itemIt );
if ( composerItem )
{
if ( composerItem->type() != QgsComposerItem::ComposerPaper && composerItem->type() != QgsComposerItem::ComposerFrame )
{
composerItem->writeXML( compositionElem, doc );
}
}
}
//save multiframes
QSet<QgsComposerMultiFrame*>::const_iterator multiFrameIt = mMultiFrames.constBegin();
for ( ; multiFrameIt != mMultiFrames.constEnd(); ++multiFrameIt )
{
( *multiFrameIt )->writeXML( compositionElem, doc );
}
composerElem.appendChild( compositionElem );
return true;
}
bool QgsComposition::readXML( const QDomElement& compositionElem, const QDomDocument& doc )
{
Q_UNUSED( doc );
if ( compositionElem.isNull() )
{
return false;
}
//create pages
bool widthConversionOk, heightConversionOk;
mPageWidth = compositionElem.attribute( "paperWidth" ).toDouble( &widthConversionOk );
mPageHeight = compositionElem.attribute( "paperHeight" ).toDouble( &heightConversionOk );
emit paperSizeChanged();
int numPages = compositionElem.attribute( "numPages", "1" ).toInt();
if ( widthConversionOk && heightConversionOk )
{
removePaperItems();
for ( int i = 0; i < numPages; ++i )
{
addPaperItem();
}
}
//snapping
if ( compositionElem.attribute( "snapping" ) == "0" )
{
mSnapToGrid = false;
}
else
{
mSnapToGrid = true;
}
mSnapGridResolution = compositionElem.attribute( "snapGridResolution" ).toDouble();
mSnapGridOffsetX = compositionElem.attribute( "snapGridOffsetX" ).toDouble();
mSnapGridOffsetY = compositionElem.attribute( "snapGridOffsetY" ).toDouble();
mAlignmentSnap = compositionElem.attribute( "alignmentSnap", "1" ).toInt() == 0 ? false : true;
mAlignmentSnapTolerance = compositionElem.attribute( "alignmentSnapTolerance", "2.0" ).toDouble();
mPrintAsRaster = compositionElem.attribute( "printAsRaster" ).toInt();
mPrintResolution = compositionElem.attribute( "printResolution", "300" ).toInt();
updatePaperItems();
return true;
}
bool QgsComposition::loadFromTemplate( const QDomDocument& doc, QMap<QString, QString>* substitutionMap, bool addUndoCommands )
{
deleteAndRemoveMultiFrames();
//delete all items and emit itemRemoved signal
QList<QGraphicsItem *> itemList = items();
QList<QGraphicsItem *>::iterator itemIter = itemList.begin();
for ( ; itemIter != itemList.end(); ++itemIter )
{
QgsComposerItem* cItem = dynamic_cast<QgsComposerItem*>( *itemIter );
if ( cItem )
{
removeItem( cItem );
emit itemRemoved( cItem );
delete cItem;
}
}
mItemZList.clear();
mPages.clear();
mUndoStack.clear();
QDomDocument importDoc;
if ( substitutionMap )
{
QString xmlString = doc.toString();
QMap<QString, QString>::const_iterator sIt = substitutionMap->constBegin();
for ( ; sIt != substitutionMap->constEnd(); ++sIt )
{
xmlString = xmlString.replace( "[" + sIt.key() + "]", encodeStringForXML( sIt.value() ) );
}
QString errorMsg;
int errorLine, errorColumn;
if ( !importDoc.setContent( xmlString, &errorMsg, &errorLine, &errorColumn ) )
{
return false;
}
}
else
{
importDoc = doc;
}
//read general settings
QDomElement compositionElem = importDoc.documentElement().firstChildElement( "Composition" );
if ( compositionElem.isNull() )
{
return false;
}
bool ok = readXML( compositionElem, importDoc );
if ( !ok )
{
return false;
}
// remove all uuid attributes since we don't want duplicates UUIDS
QDomNodeList composerItemsNodes = importDoc.elementsByTagName("ComposerItem");
for (int i=0; i<composerItemsNodes.count(); ++i)
{
QDomNode composerItemNode = composerItemsNodes.at(i);
if( composerItemNode.isElement() )
{
composerItemNode.toElement().removeAttribute("uuid");
}
}
//addItemsFromXML
addItemsFromXML( importDoc.documentElement(), importDoc, 0, addUndoCommands, 0 );
// read atlas parameters
QDomElement atlasElem = importDoc.documentElement().firstChildElement( "Atlas" );
atlasComposition().readXML( atlasElem, importDoc );
return true;
}
void QgsComposition::addItemsFromXML( const QDomElement& elem, const QDomDocument& doc, QMap< QgsComposerMap*, int >* mapsToRestore,
bool addUndoCommands, QPointF* pos, bool pasteInPlace )
{
QPointF* pasteInPlacePt;
if( pasteInPlace )
{
pasteInPlacePt = new QPointF(0, pageNumberAt( *pos ) * (mPageHeight+mSpaceBetweenPages) );
}
QDomNodeList composerLabelList = elem.elementsByTagName( "ComposerLabel" );
for ( int i = 0; i < composerLabelList.size(); ++i )
{
QDomElement currentComposerLabelElem = composerLabelList.at( i ).toElement();
QgsComposerLabel* newLabel = new QgsComposerLabel( this );
newLabel->readXML( currentComposerLabelElem, doc );
if ( pos )
{
if ( pasteInPlace )
{
newLabel->setItemPosition( newLabel->transform().dx(), fmod(newLabel->transform().dy(), (paperHeight()+spaceBetweenPages()) ) );
newLabel->move( pasteInPlacePt->x(),pasteInPlacePt->y() );
}
else
{
newLabel->setItemPosition( pos->x(), pos->y() );
}
}
addComposerLabel( newLabel );
if ( addUndoCommands )
{
pushAddRemoveCommand( newLabel, tr( "Label added" ) );
}
}
// map
QDomNodeList composerMapList = elem.elementsByTagName( "ComposerMap" );
for ( int i = 0; i < composerMapList.size(); ++i )
{
QDomElement currentComposerMapElem = composerMapList.at( i ).toElement();
QgsComposerMap* newMap = new QgsComposerMap( this );
newMap->readXML( currentComposerMapElem, doc );
newMap->assignFreeId();
if ( mapsToRestore )
{
mapsToRestore->insert( newMap, ( int )( newMap->previewMode() ) );
newMap->setPreviewMode( QgsComposerMap::Rectangle );
}
addComposerMap( newMap, false );
if ( pos )
{
if ( pasteInPlace )
{
newMap->setItemPosition( newMap->transform().dx(), fmod(newMap->transform().dy(), (paperHeight()+spaceBetweenPages()) ) );
newMap->move( pasteInPlacePt->x(),pasteInPlacePt->y() );
}
else
{
newMap->setItemPosition( pos->x(), pos->y() );
}
}
if ( addUndoCommands )
{
pushAddRemoveCommand( newMap, tr( "Map added" ) );
}
}
// arrow
QDomNodeList composerArrowList = elem.elementsByTagName( "ComposerArrow" );
for ( int i = 0; i < composerArrowList.size(); ++i )
{
QDomElement currentComposerArrowElem = composerArrowList.at( i ).toElement();
QgsComposerArrow* newArrow = new QgsComposerArrow( this );
newArrow->readXML( currentComposerArrowElem, doc );
if ( pos )
{
if ( pasteInPlace )
{
newArrow->setItemPosition( newArrow->transform().dx(), fmod(newArrow->transform().dy(), (paperHeight()+spaceBetweenPages()) ) );
newArrow->move( pasteInPlacePt->x(),pasteInPlacePt->y() );
}
else
{
newArrow->setItemPosition( pos->x(), pos->y() );
}
}
addComposerArrow( newArrow );
if ( addUndoCommands )
{
pushAddRemoveCommand( newArrow, tr( "Arrow added" ) );
}
}
// scalebar
QDomNodeList composerScaleBarList = elem.elementsByTagName( "ComposerScaleBar" );
for ( int i = 0; i < composerScaleBarList.size(); ++i )
{
QDomElement currentComposerScaleBarElem = composerScaleBarList.at( i ).toElement();
QgsComposerScaleBar* newScaleBar = new QgsComposerScaleBar( this );
newScaleBar->readXML( currentComposerScaleBarElem, doc );
if ( pos )
{
if ( pasteInPlace )
{
newScaleBar->setItemPosition( newScaleBar->transform().dx(), fmod(newScaleBar->transform().dy(), (paperHeight()+spaceBetweenPages()) ) );
newScaleBar->move( pasteInPlacePt->x(),pasteInPlacePt->y() );
}
else
{
newScaleBar->setItemPosition( pos->x(), pos->y() );
}
}
addComposerScaleBar( newScaleBar );
if ( addUndoCommands )
{
pushAddRemoveCommand( newScaleBar, tr( "Scale bar added" ) );
}
}
// shape
QDomNodeList composerShapeList = elem.elementsByTagName( "ComposerShape" );
for ( int i = 0; i < composerShapeList.size(); ++i )
{
QDomElement currentComposerShapeElem = composerShapeList.at( i ).toElement();
QgsComposerShape* newShape = new QgsComposerShape( this );
newShape->readXML( currentComposerShapeElem, doc );
if ( pos )
{
if ( pasteInPlace )
{
newShape->setItemPosition( newShape->transform().dx(), fmod(newShape->transform().dy(), (paperHeight()+spaceBetweenPages()) ) );
newShape->move( pasteInPlacePt->x(),pasteInPlacePt->y() );
}
else
{
newShape->setItemPosition( pos->x(), pos->y() );
}
}
addComposerShape( newShape );
if ( addUndoCommands )
{
pushAddRemoveCommand( newShape, tr( "Shape added" ) );
}
}
// picture
QDomNodeList composerPictureList = elem.elementsByTagName( "ComposerPicture" );
for ( int i = 0; i < composerPictureList.size(); ++i )
{
QDomElement currentComposerPictureElem = composerPictureList.at( i ).toElement();
QgsComposerPicture* newPicture = new QgsComposerPicture( this );
newPicture->readXML( currentComposerPictureElem, doc );
if ( pos )
{
if ( pasteInPlace )
{
newPicture->setItemPosition( newPicture->transform().dx(), fmod(newPicture->transform().dy(), (paperHeight()+spaceBetweenPages()) ) );
newPicture->move( pasteInPlacePt->x(),pasteInPlacePt->y() );
}
else
{
newPicture->setItemPosition( pos->x(), pos->y() );
}
}
addComposerPicture( newPicture );
if ( addUndoCommands )
{
pushAddRemoveCommand( newPicture, tr( "Picture added" ) );
}
}
// legend
QDomNodeList composerLegendList = elem.elementsByTagName( "ComposerLegend" );
for ( int i = 0; i < composerLegendList.size(); ++i )
{
QDomElement currentComposerLegendElem = composerLegendList.at( i ).toElement();
QgsComposerLegend* newLegend = new QgsComposerLegend( this );
newLegend->readXML( currentComposerLegendElem, doc );
if ( pos )
{
if ( pasteInPlace )
{
newLegend->setItemPosition( newLegend->transform().dx(), fmod(newLegend->transform().dy(), (paperHeight()+spaceBetweenPages()) ) );
newLegend->move( pasteInPlacePt->x(),pasteInPlacePt->y() );
}
else
{
newLegend->setItemPosition( pos->x(), pos->y() );
}
}
addComposerLegend( newLegend );
if ( addUndoCommands )
{
pushAddRemoveCommand( newLegend, tr( "Legend added" ) );
}
}
// table
QDomNodeList composerTableList = elem.elementsByTagName( "ComposerAttributeTable" );
for ( int i = 0; i < composerTableList.size(); ++i )
{
QDomElement currentComposerTableElem = composerTableList.at( i ).toElement();
QgsComposerAttributeTable* newTable = new QgsComposerAttributeTable( this );
newTable->readXML( currentComposerTableElem, doc );
if ( pos )
{
if ( pasteInPlace )
{
newTable->setItemPosition( newTable->transform().dx(), fmod(newTable->transform().dy(), (paperHeight()+spaceBetweenPages()) ) );
newTable->move( pasteInPlacePt->x(),pasteInPlacePt->y() );
}
else
{
newTable->setItemPosition( pos->x(), pos->y() );
}
}
addComposerTable( newTable );
if ( addUndoCommands )
{
pushAddRemoveCommand( newTable, tr( "Table added" ) );
}
}
//html
QDomNodeList composerHtmlList = elem.elementsByTagName( "ComposerHtml" );
for ( int i = 0; i < composerHtmlList.size(); ++i )
{
QDomElement currentHtmlElem = composerHtmlList.at( i ).toElement();
QgsComposerHtml* newHtml = new QgsComposerHtml( this, false );
newHtml->readXML( currentHtmlElem, doc );
newHtml->setCreateUndoCommands( true );
this->addMultiFrame( newHtml );
}
}
void QgsComposition::addItemToZList( QgsComposerItem* item )
{
if ( !item )
{
return;
}
mItemZList.push_back( item );
QgsDebugMsg( QString::number( mItemZList.size() ) );
item->setZValue( mItemZList.size() );
}
void QgsComposition::removeItemFromZList( QgsComposerItem* item )
{
if ( !item )
{
return;
}
mItemZList.removeAll( item );
}
void QgsComposition::raiseSelectedItems()
{
QList<QgsComposerItem*> selectedItems = selectedComposerItems();
QList<QgsComposerItem*>::iterator it = selectedItems.begin();
for ( ; it != selectedItems.end(); ++it )
{
raiseItem( *it );
}
//update all positions
updateZValues();
update();
}
void QgsComposition::raiseItem( QgsComposerItem* item )
{
//search item
QMutableLinkedListIterator<QgsComposerItem*> it( mItemZList );
if ( it.findNext( item ) )
{
if ( it.hasNext() )
{
it.remove();
it.next();
it.insert( item );
}
}
}
void QgsComposition::lowerSelectedItems()
{
QList<QgsComposerItem*> selectedItems = selectedComposerItems();
QList<QgsComposerItem*>::iterator it = selectedItems.begin();
for ( ; it != selectedItems.end(); ++it )
{
lowerItem( *it );
}
//update all positions
updateZValues();
update();
}
void QgsComposition::lowerItem( QgsComposerItem* item )
{
//search item
QMutableLinkedListIterator<QgsComposerItem*> it( mItemZList );
if ( it.findNext( item ) )
{
it.previous();
if ( it.hasPrevious() )
{
it.remove();
it.previous();
it.insert( item );
}
}
}
void QgsComposition::moveSelectedItemsToTop()
{
QList<QgsComposerItem*> selectedItems = selectedComposerItems();
QList<QgsComposerItem*>::iterator it = selectedItems.begin();
for ( ; it != selectedItems.end(); ++it )
{
moveItemToTop( *it );
}
//update all positions
updateZValues();
update();
}
void QgsComposition::moveItemToTop( QgsComposerItem* item )
{
//search item
QMutableLinkedListIterator<QgsComposerItem*> it( mItemZList );
if ( it.findNext( item ) )
{
it.remove();
}
mItemZList.push_back( item );
}
void QgsComposition::moveSelectedItemsToBottom()
{
QList<QgsComposerItem*> selectedItems = selectedComposerItems();
QList<QgsComposerItem*>::iterator it = selectedItems.begin();
for ( ; it != selectedItems.end(); ++it )
{
moveItemToBottom( *it );
}
//update all positions
updateZValues();
update();
}
void QgsComposition::moveItemToBottom( QgsComposerItem* item )
{
//search item
QMutableLinkedListIterator<QgsComposerItem*> it( mItemZList );
if ( it.findNext( item ) )
{
it.remove();
}
mItemZList.push_front( item );
}
void QgsComposition::alignSelectedItemsLeft()
{
QList<QgsComposerItem*> selectedItems = selectedComposerItems();
if ( selectedItems.size() < 2 )
{
return;
}
QRectF selectedItemBBox;
if ( boundingRectOfSelectedItems( selectedItemBBox ) != 0 )
{
return;
}
double minXCoordinate = selectedItemBBox.left();
//align items left to minimum x coordinate
QUndoCommand* parentCommand = new QUndoCommand( tr( "Aligned items left" ) );
QList<QgsComposerItem*>::iterator align_it = selectedItems.begin();
for ( ; align_it != selectedItems.end(); ++align_it )
{
QgsComposerItemCommand* subcommand = new QgsComposerItemCommand( *align_it, "", parentCommand );
subcommand->savePreviousState();
QTransform itemTransform = ( *align_it )->transform();
itemTransform.translate( minXCoordinate - itemTransform.dx(), 0 );
( *align_it )->setTransform( itemTransform );
subcommand->saveAfterState();
}
mUndoStack.push( parentCommand );
}
void QgsComposition::alignSelectedItemsHCenter()
{
QList<QgsComposerItem*> selectedItems = selectedComposerItems();
if ( selectedItems.size() < 2 )
{
return;
}
QRectF selectedItemBBox;
if ( boundingRectOfSelectedItems( selectedItemBBox ) != 0 )
{
return;
}
double averageXCoord = ( selectedItemBBox.left() + selectedItemBBox.right() ) / 2.0;
//place items
QUndoCommand* parentCommand = new QUndoCommand( tr( "Aligned items hcenter" ) );
QList<QgsComposerItem*>::iterator align_it = selectedItems.begin();
for ( ; align_it != selectedItems.end(); ++align_it )
{
QgsComposerItemCommand* subcommand = new QgsComposerItemCommand( *align_it, "", parentCommand );
subcommand->savePreviousState();
QTransform itemTransform = ( *align_it )->transform();
itemTransform.translate( averageXCoord - itemTransform.dx() - ( *align_it )->rect().width() / 2.0, 0 );
( *align_it )->setTransform( itemTransform );
subcommand->saveAfterState();
}
mUndoStack.push( parentCommand );
}
void QgsComposition::alignSelectedItemsRight()
{
QList<QgsComposerItem*> selectedItems = selectedComposerItems();
if ( selectedItems.size() < 2 )
{
return;
}
QRectF selectedItemBBox;
if ( boundingRectOfSelectedItems( selectedItemBBox ) != 0 )
{
return;
}
double maxXCoordinate = selectedItemBBox.right();
//align items right to maximum x coordinate
QUndoCommand* parentCommand = new QUndoCommand( tr( "Aligned items right" ) );
QList<QgsComposerItem*>::iterator align_it = selectedItems.begin();
for ( ; align_it != selectedItems.end(); ++align_it )
{
QgsComposerItemCommand* subcommand = new QgsComposerItemCommand( *align_it, "", parentCommand );
subcommand->savePreviousState();
QTransform itemTransform = ( *align_it )->transform();
itemTransform.translate( maxXCoordinate - itemTransform.dx() - ( *align_it )->rect().width(), 0 );
( *align_it )->setTransform( itemTransform );
subcommand->saveAfterState();
}
mUndoStack.push( parentCommand );
}
void QgsComposition::alignSelectedItemsTop()
{
QList<QgsComposerItem*> selectedItems = selectedComposerItems();
if ( selectedItems.size() < 2 )
{
return;
}
QRectF selectedItemBBox;
if ( boundingRectOfSelectedItems( selectedItemBBox ) != 0 )
{
return;
}
double minYCoordinate = selectedItemBBox.top();
QUndoCommand* parentCommand = new QUndoCommand( tr( "Aligned items top" ) );
QList<QgsComposerItem*>::iterator align_it = selectedItems.begin();
for ( ; align_it != selectedItems.end(); ++align_it )
{
QgsComposerItemCommand* subcommand = new QgsComposerItemCommand( *align_it, "", parentCommand );
subcommand->savePreviousState();
QTransform itemTransform = ( *align_it )->transform();
itemTransform.translate( 0, minYCoordinate - itemTransform.dy() );
( *align_it )->setTransform( itemTransform );
subcommand->saveAfterState();
}
mUndoStack.push( parentCommand );
}
void QgsComposition::alignSelectedItemsVCenter()
{
QList<QgsComposerItem*> selectedItems = selectedComposerItems();
if ( selectedItems.size() < 2 )
{
return;