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Output preview widget (first part)

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Jakub Melka
2021-03-27 16:06:07 +01:00
parent 40bbdd531a
commit 019637f9f2
10 changed files with 485 additions and 37 deletions
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10
Pdf4QtLib/sources/pdfwidgetutils.cpp
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@ -28,7 +28,7 @@ int qt_default_dpi_y() { return 96; }
namespace pdf
{
int PDFWidgetUtils::getPixelSize(QPaintDevice* device, pdf::PDFReal sizeMM)
int PDFWidgetUtils::getPixelSize(const QPaintDevice* device, pdf::PDFReal sizeMM)
{
const int width = device->width();
const int height = device->height();
@ -43,21 +43,21 @@ int PDFWidgetUtils::getPixelSize(QPaintDevice* device, pdf::PDFReal sizeMM)
}
}
int PDFWidgetUtils::scaleDPI_x(QPaintDevice* device, int unscaledSize)
int PDFWidgetUtils::scaleDPI_x(const QPaintDevice* device, int unscaledSize)
{
const double logicalDPI_x = device->logicalDpiX();
const double defaultDPI_x = qt_default_dpi_x();
return (logicalDPI_x / defaultDPI_x) * unscaledSize;
}
int PDFWidgetUtils::scaleDPI_y(QPaintDevice* device, int unscaledSize)
int PDFWidgetUtils::scaleDPI_y(const QPaintDevice* device, int unscaledSize)
{
const double logicalDPI_y = device->logicalDpiY();
const double defaultDPI_y = qt_default_dpi_y();
return (logicalDPI_y / defaultDPI_y) * unscaledSize;
}
PDFReal PDFWidgetUtils::scaleDPI_x(QPaintDevice* device, PDFReal unscaledSize)
PDFReal PDFWidgetUtils::scaleDPI_x(const QPaintDevice* device, PDFReal unscaledSize)
{
const double logicalDPI_x = device->logicalDpiX();
const double defaultDPI_x = qt_default_dpi_x();
@ -77,7 +77,7 @@ void PDFWidgetUtils::scaleWidget(QWidget* widget, QSize unscaledSize)
widget->resize(width, height);
}
QSize PDFWidgetUtils::scaleDPI(QPaintDevice* widget, QSize unscaledSize)
QSize PDFWidgetUtils::scaleDPI(const QPaintDevice* widget, QSize unscaledSize)
{
const double logicalDPI_x = widget->logicalDpiX();
const double logicalDPI_y = widget->logicalDpiY();