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Implement wxD2DGradientStopsHelper as a wxD2DResourceHolder

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There is a dedicated template class wxD2DResourceHolder<T> to support
managing backend D2D resources and wxD2DGradientStopsHelper should be
derived from wxD2DResourceHolder<ID2D1GradientStopCollection> for the
sake of consistency with other D2D resource holders.
This commit is contained in:
Artur Wieczorek
2020-02-09 20:46:40 +01:00
parent c7c3f337c2
commit 55daa7103e
1 changed files with 21 additions and 20 deletions
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43
src/msw/graphicsd2d.cpp
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@@ -2314,33 +2314,32 @@ wxD2DBitmapData* wxGetD2DBitmapData(const wxGraphicsBitmap& bitmap)
}
// Helper class used to create and safely release a ID2D1GradientStopCollection from wxGraphicsGradientStops
class wxD2DGradientStopsHelper
class wxD2DGradientStopsHelper : public wxD2DResourceHolder<ID2D1GradientStopCollection>
{
public:
wxD2DGradientStopsHelper(const wxGraphicsGradientStops& gradientStops, ID2D1RenderTarget* renderTarget)
wxD2DGradientStopsHelper(const wxGraphicsGradientStops& gradientStops)
{
int stopCount = gradientStops.GetCount();
D2D1_GRADIENT_STOP* gradientStopArray = new D2D1_GRADIENT_STOP[stopCount];
for (int i = 0; i < stopCount; ++i)
const int stopCount = gradientStops.GetCount();
m_gradientStops.reserve(stopCount);
for ( int i = 0; i < stopCount; ++i )
{
gradientStopArray[i].color = wxD2DConvertColour(gradientStops.Item(i).GetColour());
gradientStopArray[i].position = gradientStops.Item(i).GetPosition();
D2D1_GRADIENT_STOP stop;
stop.position = gradientStops.Item(i).GetPosition();
stop.color = wxD2DConvertColour(gradientStops.Item(i).GetColour());
m_gradientStops.push_back(stop);
}
}
renderTarget->CreateGradientStopCollection(gradientStopArray, stopCount, D2D1_GAMMA_2_2, D2D1_EXTEND_MODE_CLAMP, &m_gradientStopCollection);
delete[] gradientStopArray;
}
ID2D1GradientStopCollection* GetGradientStopCollection()
protected:
void DoAcquireResource() wxOVERRIDE
{
return m_gradientStopCollection;
HRESULT hr = GetContext()->CreateGradientStopCollection(m_gradientStops.data(),
m_gradientStops.size(), D2D1_GAMMA_2_2, D2D1_EXTEND_MODE_CLAMP, &m_nativeResource);
wxCHECK_HRESULT_RET(hr);
}
private:
wxCOMPtr<ID2D1GradientStopCollection> m_gradientStopCollection;
wxVector<D2D1_GRADIENT_STOP> m_gradientStops;
};
template <typename B>
@@ -2443,13 +2442,14 @@ public:
protected:
void DoAcquireResource() wxOVERRIDE
{
wxD2DGradientStopsHelper helper(m_linearGradientInfo.stops, GetContext());
wxD2DGradientStopsHelper helper(m_linearGradientInfo.stops);
helper.Bind(GetManager());
HRESULT hr = GetContext()->CreateLinearGradientBrush(
D2D1::LinearGradientBrushProperties(
D2D1::Point2F(m_linearGradientInfo.x1, m_linearGradientInfo.y1),
D2D1::Point2F(m_linearGradientInfo.x2, m_linearGradientInfo.y2)),
helper.GetGradientStopCollection(),
helper.GetD2DResource(),
&m_nativeResource);
wxCHECK_HRESULT_RET(hr);
@@ -2494,7 +2494,8 @@ public:
protected:
void DoAcquireResource() wxOVERRIDE
{
wxD2DGradientStopsHelper helper(m_radialGradientInfo.stops, GetContext());
wxD2DGradientStopsHelper helper(m_radialGradientInfo.stops);
helper.Bind(GetManager());
wxDouble xo = m_radialGradientInfo.x1 - m_radialGradientInfo.x2;
wxDouble yo = m_radialGradientInfo.y1 - m_radialGradientInfo.y2;
@@ -2504,7 +2505,7 @@ protected:
D2D1::Point2F(m_radialGradientInfo.x1, m_radialGradientInfo.y1),
D2D1::Point2F(xo, yo),
m_radialGradientInfo.radius, m_radialGradientInfo.radius),
helper.GetGradientStopCollection(),
helper.GetD2DResource(),
&m_nativeResource);
wxCHECK_HRESULT_RET(hr);