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Enable OpenGL drawing

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This commit is contained in:
Jakub Melka
2019-09-01 18:26:52 +02:00
parent 69ba66ae04
commit 135fa6fc86
4 changed files with 166 additions and 64 deletions
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8
PdfForQtLib/sources/pdfdrawspacecontroller.cpp
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@ -373,7 +373,7 @@ void PDFDrawWidgetProxy::init(PDFWidget* widget)
connect(m_horizontalScrollbar, &QScrollBar::valueChanged, this, &PDFDrawWidgetProxy::onHorizontalScrollbarValueChanged);
connect(m_verticalScrollbar, &QScrollBar::valueChanged, this, &PDFDrawWidgetProxy::onVerticalScrollbarValueChanged);
connect(this, &PDFDrawWidgetProxy::drawSpaceChanged, m_widget, QOverload<void>::of(&PDFDrawWidget::update));
connect(this, &PDFDrawWidgetProxy::drawSpaceChanged, m_widget->getWidget(), QOverload<void>::of(&PDFDrawWidget::update));
// We must update the draw space - widget has been set
update();
@ -391,9 +391,11 @@ void PDFDrawWidgetProxy::update()
Q_ASSERT(m_horizontalScrollbar);
Q_ASSERT(m_verticalScrollbar);
QWidget* widget = m_widget->getWidget();
// First, we must calculate pixel per mm ratio to obtain DPMM (device pixel per mm),
// we also assume, that zoom is correctly set.
m_pixelPerMM = static_cast<PDFReal>(m_widget->width()) / static_cast<PDFReal>(m_widget->widthMM());
m_pixelPerMM = static_cast<PDFReal>(widget->width()) / static_cast<PDFReal>(widget->widthMM());
Q_ASSERT(m_zoom > 0.0);
Q_ASSERT(m_pixelPerMM > 0.0);
@ -438,7 +440,7 @@ void PDFDrawWidgetProxy::update()
}
QSize blockSize = m_layout.blockRect.size();
QSize widgetSize = m_widget->size();
QSize widgetSize = widget->size();
// Horizontal scrollbar
const int horizontalDifference = blockSize.width() - widgetSize.width();