void QgsComposerMultiFrame::handlePageChange()
{
if ( mComposition->numPages() < 1 )
{
return;
}
if ( mResizeMode != RepeatOnEveryPage )
{
return;
}
//remove items beginning on non-existing pages
for ( int i = mFrameItems.size() - 1; i >= 0; --i )
{
QgsComposerFrame* frame = mFrameItems[i];
int page = frame->pos().y() / ( mComposition->paperHeight() + mComposition->spaceBetweenPages() );
if ( page > ( mComposition->numPages() - 1 ) )
{
removeFrame( i );
}
}
//page number of the last item
QgsComposerFrame* lastFrame = mFrameItems.last();
int lastItemPage = lastFrame->pos().y() / ( mComposition->paperHeight() + mComposition->spaceBetweenPages() );
for ( int i = lastItemPage + 1; i < mComposition->numPages(); ++i )
{
//copy last frame to current page
QgsComposerFrame* newFrame = new QgsComposerFrame( mComposition, this, lastFrame->pos().x(),
lastFrame->pos().y() + mComposition->paperHeight() + mComposition->spaceBetweenPages(),
lastFrame->rect().width(), lastFrame->rect().height() );
addFrame( newFrame, false );
lastFrame = newFrame;
}
recalculateFrameSizes();
update();
}
void QgsComposerMultiFrame::recalculateFrameSizes()
{
if ( mFrameItems.empty() )
{
return;
}
QSizeF size = totalSize();
double totalHeight = size.height();
if ( totalHeight < 1 )
{
return;
}
double currentY = 0;
double currentHeight = 0;
QgsComposerFrame *currentItem = nullptr;
for ( int i = 0; i < mFrameItems.size(); ++i )
{
if ( mResizeMode != RepeatOnEveryPage && currentY >= totalHeight )
{
if ( mResizeMode == RepeatUntilFinished || mResizeMode == ExtendToNextPage ) //remove unneeded frames in extent mode
{
bool removingPages = true;
for ( int j = mFrameItems.size(); j > i; --j )
{
int numPagesBefore = mComposition->numPages();
removeFrame( j - 1, removingPages );
//if removing the frame didn't also remove the page, then stop removing pages
removingPages = removingPages && ( mComposition->numPages() < numPagesBefore );
}
return;
}
}
currentItem = mFrameItems.value( i );
currentHeight = currentItem->rect().height();
if ( mResizeMode == RepeatOnEveryPage )
{
currentItem->setContentSection( QRectF( 0, 0, currentItem->rect().width(), currentHeight ) );
}
else
{
currentHeight = findNearbyPageBreak( currentY + currentHeight ) - currentY;
currentItem->setContentSection( QRectF( 0, currentY, currentItem->rect().width(), currentHeight ) );
}
currentItem->update();
currentY += currentHeight;
}
//at end of frames but there is still content left. Add other pages if ResizeMode ==
if ( mResizeMode != UseExistingFrames )
{
while ( ( mResizeMode == RepeatOnEveryPage ) || currentY < totalHeight )
{
//find out on which page the lower left point of the last frame is
int page = std::floor( ( currentItem->pos().y() + currentItem->rect().height() ) / ( mComposition->paperHeight() + mComposition->spaceBetweenPages() ) ) + 1;
if ( mResizeMode == RepeatOnEveryPage )
{
if ( page >= mComposition->numPages() )
{
break;
}
}
else
{
//add an extra page if required
if ( mComposition->numPages() < ( page + 1 ) )
{
mComposition->setNumPages( page + 1 );
}
}
double frameHeight = 0;
if ( mResizeMode == RepeatUntilFinished || mResizeMode == RepeatOnEveryPage )
{
frameHeight = currentItem->rect().height();
}
else //mResizeMode == ExtendToNextPage
{
frameHeight = ( currentY + mComposition->paperHeight() ) > totalHeight ? totalHeight - currentY : mComposition->paperHeight();
}
double newFrameY = page * ( mComposition->paperHeight() + mComposition->spaceBetweenPages() );
if ( mResizeMode == RepeatUntilFinished || mResizeMode == RepeatOnEveryPage )
{
newFrameY += currentItem->pos().y() - ( page - 1 ) * ( mComposition->paperHeight() + mComposition->spaceBetweenPages() );
}
//create new frame
QgsComposerFrame *newFrame = createNewFrame( currentItem,
QPointF( currentItem->pos().x(), newFrameY ),
QSizeF( currentItem->rect().width(), frameHeight ) );
if ( mResizeMode == RepeatOnEveryPage )
{
newFrame->setContentSection( QRectF( 0, 0, newFrame->rect().width(), newFrame->rect().height() ) );
currentY += frameHeight;
}
else
{
double contentHeight = findNearbyPageBreak( currentY + newFrame->rect().height() ) - currentY;
newFrame->setContentSection( QRectF( 0, currentY, newFrame->rect().width(), contentHeight ) );
currentY += contentHeight;
}
currentItem = newFrame;
}
}
}
void QgsComposerMultiFrame::recalculateFrameSizes()
{
if ( mFrameItems.size() < 1 )
{
return;
}
QSizeF size = totalSize();
double totalHeight = size.height();
if ( totalHeight < 1 )
{
return;
}
double currentY = 0;
double currentHeight = 0;
QgsComposerFrame* currentItem = 0;
for ( int i = 0; i < mFrameItems.size(); ++i )
{
if ( mResizeMode != RepeatOnEveryPage && currentY >= totalHeight )
{
if ( mResizeMode == RepeatUntilFinished || mResizeMode == ExtendToNextPage ) //remove unneeded frames in extent mode
{
for ( int j = mFrameItems.size(); j > i; --j )
{
removeFrame( j - 1 );
}
}
return;
}
currentItem = mFrameItems.value( i );
currentHeight = currentItem->rect().height();
if ( mResizeMode == RepeatOnEveryPage )
{
currentItem->setContentSection( QRectF( 0, 0, currentItem->rect().width(), currentHeight ) );
}
else
{
currentItem->setContentSection( QRectF( 0, currentY, currentItem->rect().width(), currentHeight ) );
}
currentItem->update();
currentY += currentHeight;
}
//at end of frames but there is still content left. Add other pages if ResizeMode ==
if ( mResizeMode != UseExistingFrames )
{
while (( mResizeMode == RepeatOnEveryPage ) || currentY < totalHeight )
{
//find out on which page the lower left point of the last frame is
int page = currentItem->pos().y() / ( mComposition->paperHeight() + mComposition->spaceBetweenPages() );
if ( mResizeMode == RepeatOnEveryPage )
{
if ( page > mComposition->numPages() - 2 )
{
break;
}
}
else
{
if ( mComposition->numPages() < ( page + 2 ) )
{
mComposition->setNumPages( page + 2 );
}
}
double frameHeight = 0;
if ( mResizeMode == RepeatUntilFinished || mResizeMode == RepeatOnEveryPage )
{
frameHeight = currentItem->rect().height();
}
else //mResizeMode == ExtendToNextPage
{
frameHeight = ( currentY + mComposition->paperHeight() ) > totalHeight ? totalHeight - currentY : mComposition->paperHeight();
}
double newFrameY = ( page + 1 ) * ( mComposition->paperHeight() + mComposition->spaceBetweenPages() );
if ( mResizeMode == RepeatUntilFinished || mResizeMode == RepeatOnEveryPage )
{
newFrameY += currentItem->pos().y() - page * ( mComposition->paperHeight() + mComposition->spaceBetweenPages() );
}
QgsComposerFrame* newFrame = new QgsComposerFrame( mComposition, this, currentItem->pos().x(),
newFrameY,
currentItem->rect().width(), frameHeight );
if ( mResizeMode == RepeatOnEveryPage )
{
newFrame->setContentSection( QRectF( 0, 0, newFrame->rect().width(), newFrame->rect().height() ) );
}
else
{
newFrame->setContentSection( QRectF( 0, currentY, newFrame->rect().width(), newFrame->rect().height() ) );
}
currentY += frameHeight;
currentItem = newFrame;
addFrame( newFrame, false );
}
}
}