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Extract custom wxBitmapBundleImpl in treectrl sample

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No changes yet, just prepare for using this class in another function.

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This commit is contained in:
Vadim Zeitlin 2023-10-25 18:57:43 +02:00
parent 366d06847b
commit 188dc81d6e
1 changed files with 36 additions and 33 deletions
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69
samples/treectrl/treetest.cpp
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@ -955,6 +955,42 @@ MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
AddTestItemsToTree(NUM_CHILDREN_PER_LEVEL, NUM_LEVELS);
}
namespace
{
class FixedSizeImpl : public wxBitmapBundleImpl
{
public:
FixedSizeImpl(const wxSize& sizeDef, const wxIcon& icon)
: m_sizeDef(sizeDef),
m_icon(icon)
{
}
wxSize GetDefaultSize() const override
{
return m_sizeDef;
}
wxSize GetPreferredBitmapSizeAtScale(double scale) const override
{
return m_sizeDef*scale;
}
wxBitmap GetBitmap(const wxSize& size) override
{
wxBitmap bmp(m_icon);
if ( size != bmp.GetSize() )
wxBitmap::Rescale(bmp, size);
return bmp;
}
private:
const wxSize m_sizeDef;
const wxIcon m_icon;
};
} // anonymous namespace
void MyTreeCtrl::CreateImages(int size)
{
if ( size == -1 )
@ -994,39 +1030,6 @@ void MyTreeCtrl::CreateImages(int size)
// DPI, to ensure they are of the desired size.
wxVector<wxBitmapBundle> images;
class FixedSizeImpl : public wxBitmapBundleImpl
{
public:
FixedSizeImpl(const wxSize& sizeDef, const wxIcon& icon)
: m_sizeDef(sizeDef),
m_icon(icon)
{
}
wxSize GetDefaultSize() const override
{
return m_sizeDef;
}
wxSize GetPreferredBitmapSizeAtScale(double scale) const override
{
return m_sizeDef*scale;
}
wxBitmap GetBitmap(const wxSize& size) override
{
wxBitmap bmp(m_icon);
if ( size != bmp.GetSize() )
wxBitmap::Rescale(bmp, size);
return bmp;
}
private:
const wxSize m_sizeDef;
const wxIcon m_icon;
};
for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
{
images.push_back(wxBitmapBundle::FromImpl(new FixedSizeImpl(iconSize, icons[i])));