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Page navigation and zoom

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This commit is contained in:
Jakub Melka
2019-11-09 15:11:57 +01:00
parent e9dff4d747
commit eab366b90d
4 changed files with 95 additions and 0 deletions
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40
PdfForQtLib/sources/pdfdrawspacecontroller.cpp
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@ -93,6 +93,27 @@ PDFDrawSpaceController::LayoutItems PDFDrawSpaceController::getLayoutItems(size_
return result;
}
PDFDrawSpaceController::LayoutItem PDFDrawSpaceController::getLayoutItemForPage(PDFInteger pageIndex) const
{
LayoutItem result;
if (pageIndex >= 0 && pageIndex < static_cast<PDFInteger>(m_layoutItems.size()) && m_layoutItems[pageIndex].pageIndex == pageIndex)
{
result = m_layoutItems[pageIndex];
}
if (!result.isValid())
{
auto it = std::find_if(m_layoutItems.cbegin(), m_layoutItems.cend(), [pageIndex](const LayoutItem& item) { return item.pageIndex == pageIndex; });
if (it != m_layoutItems.cend())
{
result = *it;
}
}
return result;
}
void PDFDrawSpaceController::recalculate()
{
if (!m_document)
@ -713,6 +734,25 @@ void PDFDrawWidgetProxy::zoom(PDFReal zoom)
}
}
void PDFDrawWidgetProxy::goToPage(PDFInteger pageIndex)
{
PDFDrawSpaceController::LayoutItem layoutItem = m_controller->getLayoutItemForPage(pageIndex);
if (layoutItem.isValid())
{
// We have found our page, navigate onto it
if (isBlockMode())
{
setBlockIndex(layoutItem.blockIndex);
}
else
{
QRect rect = fromDeviceSpace(layoutItem.pageRectMM).toRect();
setVerticalOffset(-rect.top() - m_layout.blockRect.top());
}
}
}
void PDFDrawWidgetProxy::setPageLayout(PageLayout pageLayout)
{
if (getPageLayout() != pageLayout)