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Editor plugin: Building stream

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Jakub Melka
2024-04-28 19:50:55 +02:00
parent 75db2de2a0
commit a40faf855d
8 changed files with 196 additions and 3 deletions
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4
Pdf4QtLibWidgets/sources/pdfdocumentdrawinterface.h
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@@ -59,6 +59,10 @@ public:
/// \param painter Painter
/// \param rect Draw rectangle (usually viewport rectangle of the pdf widget)
virtual void drawPostRendering(QPainter* painter, QRect rect) const;
/// Returns true if drawing of the page content should be suppressed.
/// This is used for special purposes, such as rendering edited page content.
virtual bool isPageContentDrawSuppressed() const;
};
/// Input interface for handling events. Implementations should react on these events,

17
Pdf4QtLibWidgets/sources/pdfdrawspacecontroller.cpp
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@@ -809,9 +809,19 @@ void PDFDrawWidgetProxy::drawPages(QPainter* painter, QRect rect, PDFRenderer::F
const PDFPage* page = m_controller->getDocument()->getCatalog()->getPage(item.pageIndex);
QTransform matrix = QTransform(createPagePointToDevicePointMatrix(page, placedRect)) * baseMatrix;
compiledPage->draw(painter, page->getCropBox(), matrix, features, groupInfo.transparency);
PDFTextLayoutGetter layoutGetter = m_textLayoutCompiler->getTextLayoutLazy(item.pageIndex);
bool isPageContentDrawSuppressed = false;
for (IDocumentDrawInterface* drawInterface : m_drawInterfaces)
{
isPageContentDrawSuppressed = isPageContentDrawSuppressed || drawInterface->isPageContentDrawSuppressed();
}
if (!isPageContentDrawSuppressed)
{
compiledPage->draw(painter, page->getCropBox(), matrix, features, groupInfo.transparency);
}
// Draw text blocks/text lines, if it is enabled
if (features.testFlag(PDFRenderer::DebugTextBlocks))
{
@@ -1629,4 +1639,9 @@ void IDocumentDrawInterface::drawPostRendering(QPainter* painter, QRect rect) co
Q_UNUSED(rect);
}
bool IDocumentDrawInterface::isPageContentDrawSuppressed() const
{
return false;
}
} // namespace pdf

11
Pdf4QtLibWidgets/sources/pdfpagecontentelements.cpp
View File

@@ -333,6 +333,7 @@ PDFPageContentScene::PDFPageContentScene(QObject* parent) :
QObject(parent),
m_firstFreeId(1),
m_isActive(false),
m_isPageContentDrawSuppressed(false),
m_widget(nullptr),
m_manipulator(this, nullptr)
{
@@ -642,6 +643,11 @@ int PDFPageContentScene::getInputPriority() const
return ToolPriority + 1;
}
bool PDFPageContentScene::isPageContentDrawSuppressed() const
{
return isActive() && m_isPageContentDrawSuppressed;
}
void PDFPageContentScene::drawElements(QPainter* painter,
PDFInteger pageIndex,
PDFTextLayoutGetter& layoutGetter,
@@ -823,6 +829,11 @@ void PDFPageContentScene::onSelectionChanged()
Q_EMIT selectionChanged();
}
void PDFPageContentScene::setIsPageContentDrawSuppressed(bool newIsPageContentDrawSuppressed)
{
m_isPageContentDrawSuppressed = newIsPageContentDrawSuppressed;
}
PDFWidget* PDFPageContentScene::widget() const
{
return m_widget;

4
Pdf4QtLibWidgets/sources/pdfpagecontentelements.h
View File

@@ -561,6 +561,7 @@ public:
virtual QString getTooltip() const override;
virtual const std::optional<QCursor>& getCursor() const override;
virtual int getInputPriority() const override;
virtual bool isPageContentDrawSuppressed() const;
virtual void drawPage(QPainter* painter,
PDFInteger pageIndex,
@@ -579,6 +580,8 @@ public:
const PDFPrecompiledPage* compiledPage,
QList<PDFRenderError>& errors) const;
void setIsPageContentDrawSuppressed(bool newIsPageContentDrawSuppressed);
signals:
/// This signal is emitted when scene has changed (including graphics)
void sceneChanged(bool graphicsOnly);
@@ -637,6 +640,7 @@ private:
PDFInteger m_firstFreeId;
bool m_isActive;
bool m_isPageContentDrawSuppressed;
PDFWidget* m_widget;
std::vector<std::unique_ptr<PDFPageContentElement>> m_elements;
std::optional<QCursor> m_cursor;