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Finishing of outline, zoom actions

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This commit is contained in:
Jakub Melka
2019-12-01 13:02:25 +01:00
parent 5954b7f409
commit 939a011ca6
14 changed files with 786 additions and 11 deletions
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69
PdfForQtLib/sources/pdfdrawspacecontroller.cpp
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@ -114,6 +114,25 @@ PDFDrawSpaceController::LayoutItem PDFDrawSpaceController::getLayoutItemForPage(
return result;
}
QSizeF PDFDrawSpaceController::getReferenceBoundingBox() const
{
QRectF rect;
for (const LayoutItem& item : m_layoutItems)
{
QRectF pageRect = item.pageRectMM;
pageRect.translate(0, -pageRect.top());
rect = rect.united(pageRect);
}
if (rect.isValid())
{
rect.adjust(0, 0, m_horizontalSpacingMM, m_verticalSpacingMM);
}
return rect.size();
}
void PDFDrawSpaceController::recalculate()
{
if (!m_document)
@ -697,6 +716,24 @@ void PDFDrawWidgetProxy::performOperation(Operation operation)
break;
}
case ZoomFit:
{
zoom(getZoomHint(ZoomHint::Fit));
break;
}
case ZoomFitWidth:
{
zoom(getZoomHint(ZoomHint::FitWidth));
break;
}
case ZoomFitHeight:
{
zoom(getZoomHint(ZoomHint::FitHeight));
break;
}
default:
{
Q_ASSERT(false);
@ -734,6 +771,38 @@ void PDFDrawWidgetProxy::zoom(PDFReal zoom)
}
}
PDFReal PDFDrawWidgetProxy::getZoomHint(ZoomHint hint) const
{
QSizeF referenceSize = m_controller->getReferenceBoundingBox();
if (referenceSize.isValid())
{
const PDFReal ratio = 0.95;
const PDFReal widthMM = m_widget->widthMM() * ratio;
const PDFReal heightMM = m_widget->heightMM() * ratio;
const PDFReal widthHint = widthMM / referenceSize.width();
const PDFReal heightHint = heightMM / referenceSize.height();
switch (hint)
{
case ZoomHint::Fit:
return qMin(widthHint, heightHint);
case ZoomHint::FitWidth:
return widthHint;
case ZoomHint::FitHeight:
return heightHint;
default:
break;
}
}
// Return default 100% zoom
return 1.0;
}
void PDFDrawWidgetProxy::goToPage(PDFInteger pageIndex)
{
PDFDrawSpaceController::LayoutItem layoutItem = m_controller->getLayoutItemForPage(pageIndex);