Layer* OpBackground::DoCreateBackgroundLayer(UndoableOperation * pOp, Spread * pSpread)
{
ERROR2IF(pOp == NULL || pSpread == NULL,FALSE,"OpBackground::DoCreateBackgroundLayer Bad params error!");
// Search for our special page background layer
Layer* pFoundLayer = pSpread->FindFirstPageBackgroundLayer();
// If we have found it then return this to the caller as we don't want
// more than one present!
if (pFoundLayer != NULL)
return pFoundLayer;
// We didn't find a page background layer so go and create a new one
Layer* pNewLayer = CreateBackgroundLayer();
if (pNewLayer != NULL)
{
// If we insert the new layer as the FIRSTCHILD then this will be like the guidelayer
// and behind the page. If we insert as the last child then we will be at the front of
// the stacking order. We need to insert ourselves as the node after the last page node
Page *pLastPage = pSpread->FindLastPageInSpread();
// Insert the new layer as the next node after the last page.
if (pLastPage && pOp->DoInsertNewNode(pNewLayer, pLastPage, NEXT, FALSE,FALSE,FALSE,FALSE))
{
pNewLayer->EnsureUniqueLayerID();
BROADCAST_TO_ALL(SpreadMsg(pSpread, SpreadMsg::LAYERCHANGES));
}
else
{
delete pNewLayer;
pNewLayer = NULL;
}
}
return pNewLayer;
}
void OpShowGuides::Do(OpDescriptor*)
{
DocView *pDocView = DocView::GetSelected();
if (pDocView != NULL)
{
pDocView->SetShowGuidesState(!pDocView->GetShowGuidesState());
Spread* pSpread = Document::GetSelectedSpread();
Document* pDoc = Document::GetSelected();
if (pSpread != NULL && pDoc != NULL)
{
Layer* pLayer = pSpread->FindFirstGuideLayer();
if (pLayer != NULL)
LayerSGallery::ForceRedrawLayer(pDoc,pLayer);
}
BROADCAST_TO_ALL(SpreadMsg(pSpread,SpreadMsg::LAYERCHANGES));
}
End();
}
