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Preserve original image in wxImageFileProperty

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Rescale only the copy of the original image to preserve image quality.
This commit is contained in:
Artur Wieczorek
2022-04-10 13:34:03 +02:00
parent 6c7cf8e6d0
commit 04bad7a720
3 changed files with 10 additions and 6 deletions
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2
include/wx/propgrid/advprops.h
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@@ -297,7 +297,7 @@ public:
protected: protected:
wxBitmap m_bitmap; // final thumbnail area wxBitmap m_bitmap; // final thumbnail area
wxImage m_image; // intermediate thumbnail area wxImage m_image; // original thumbnail area
private: private:
// Initialize m_image using the current file name. // Initialize m_image using the current file name.

2
interface/wx/propgrid/advprops.h
View File

@@ -251,7 +251,7 @@ public:
protected: protected:
wxBitmap m_bitmap; // final thumbnail area wxBitmap m_bitmap; // final thumbnail area
wxImage m_image; // intermediate thumbnail area wxImage m_image; // original thumbnail area
}; };

10
src/propgrid/advprops.cpp
View File

@@ -1876,7 +1876,7 @@ void wxImageFileProperty::OnCustomPaint( wxDC& dc,
const wxRect& rect, const wxRect& rect,
wxPGPaintData& ) wxPGPaintData& )
{ {
if ( m_bitmap.IsOk() || m_image.IsOk() ) if ( m_image.IsOk() )
{ {
// Draw the thumbnail // Draw the thumbnail
// Create the bitmap here because required size is not known in OnSetValue(). // Create the bitmap here because required size is not known in OnSetValue().
@@ -1889,10 +1889,14 @@ void wxImageFileProperty::OnCustomPaint( wxDC& dc,
if ( !m_bitmap.IsOk() ) if ( !m_bitmap.IsOk() )
{ {
m_image.Rescale( rect.width, rect.height ); wxImage imgScaled = m_image;
m_bitmap = wxBitmap(m_image, dc); imgScaled.Rescale(rect.width, rect.height);
m_bitmap = wxBitmap(imgScaled, dc);
}
} }
if ( m_bitmap.IsOk() )
{
dc.DrawBitmap(m_bitmap, rect.x, rect.y, false); dc.DrawBitmap(m_bitmap, rect.x, rect.y, false);
} }
else else