38 lines
773 B
C++
38 lines
773 B
C++
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// 18 december 2015
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#include "uipriv_windows.hpp"
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#include "area.hpp"
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void loadAreaSize(uiArea *a, ID2D1RenderTarget *rt, double *width, double *height)
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{
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D2D1_SIZE_F size;
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*width = 0;
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*height = 0;
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if (!a->scrolling) {
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if (rt == NULL)
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rt = a->rt;
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size = realGetSize(rt);
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*width = size.width;
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*height = size.height;
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}
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}
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void pixelsToDIP(uiArea *a, double *x, double *y)
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{
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FLOAT dpix, dpiy;
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a->rt->GetDpi(&dpix, &dpiy);
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// see https://msdn.microsoft.com/en-us/library/windows/desktop/dd756649%28v=vs.85%29.aspx (and others; search "direct2d mouse")
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*x = (*x * 96) / dpix;
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*y = (*y * 96) / dpiy;
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}
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void dipToPixels(uiArea *a, double *x, double *y)
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{
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FLOAT dpix, dpiy;
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a->rt->GetDpi(&dpix, &dpiy);
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*x = (*x * dpix) / 96;
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*y = (*y * dpiy) / 96;
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}
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