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DocDiff application: document view update

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Jakub Melka
2021-10-13 17:51:16 +02:00
parent 8975a18d93
commit 41889070fb
10 changed files with 407 additions and 21 deletions
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78
Pdf4QtLib/sources/pdfdrawspacecontroller.cpp
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@ -154,6 +154,20 @@ void PDFDrawSpaceController::setPageRotation(PageRotation pageRotation)
}
}
void PDFDrawSpaceController::setCustomLayout(LayoutItems customLayoutItems)
{
if (m_customLayoutItems != customLayoutItems)
{
m_customLayoutItems = std::move(customLayoutItems);
if (m_pageLayoutMode == PageLayout::Custom)
{
// Recalculate only, if custom layout is active
recalculate();
}
}
}
void PDFDrawSpaceController::recalculate()
{
if (!m_document)
@ -361,6 +375,54 @@ void PDFDrawSpaceController::recalculate()
break;
}
case PageLayout::Custom:
{
m_layoutItems = m_customLayoutItems;
// We do not support page rotation for custom layout
Q_ASSERT(m_pageRotation == PageRotation::None);
// Assure, that layout items are sorted by block
auto comparator = [](const LayoutItem& l, const LayoutItem& r)
{
return l.blockIndex < r.blockIndex;
};
std::stable_sort(m_layoutItems.begin(), m_layoutItems.end(), comparator);
// Now, compute blocks
if (!m_layoutItems.empty())
{
m_blockItems.reserve(m_layoutItems.back().blockIndex + 1);
QRectF currentBoundingRect;
PDFInteger blockIndex = -1;
for (const LayoutItem& layoutItem : m_layoutItems)
{
if (blockIndex != layoutItem.blockIndex)
{
blockIndex = layoutItem.blockIndex;
if (currentBoundingRect.isValid())
{
m_blockItems.push_back(LayoutBlock(currentBoundingRect));
currentBoundingRect = QRectF();
}
}
currentBoundingRect = currentBoundingRect.united(layoutItem.pageRectMM);
}
if (currentBoundingRect.isValid())
{
m_blockItems.push_back(LayoutBlock(currentBoundingRect));
currentBoundingRect = QRectF();
}
}
break;
}
default:
{
Q_ASSERT(false);
@ -1156,6 +1218,15 @@ void PDFDrawWidgetProxy::setPageLayout(PageLayout pageLayout)
}
}
void PDFDrawWidgetProxy::setCustomPageLayout(PDFDrawSpaceController::LayoutItems layoutItems)
{
if (m_controller->getCustomLayout() != layoutItems)
{
m_controller->setCustomLayout(std::move(layoutItems));
emit pageLayoutChanged();
}
}
QRectF PDFDrawWidgetProxy::fromDeviceSpace(const QRectF& rect) const
{
Q_ASSERT(rect.isValid());
@ -1185,6 +1256,9 @@ bool PDFDrawWidgetProxy::isBlockMode() const
case PageLayout::TwoPagesLeft:
case PageLayout::TwoPagesRight:
return true;
case PageLayout::Custom:
return m_controller->getBlockCount() > 1;
}
Q_ASSERT(false);
@ -1217,6 +1291,10 @@ void PDFDrawWidgetProxy::prefetchPages(PDFInteger pageIndex)
prefetchCount = 2;
break;
case PageLayout::Custom:
prefetchCount = 0;
break;
default:
Q_ASSERT(false);
break;