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[Horus] Bitmaps now scaled to fit both dimensions and centered in desired zone

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This commit is contained in:
Andre Bernet
2016-08-28 11:28:29 +02:00
parent 504592ed18
commit 30eb2baed9
2 changed files with 8 additions and 12 deletions
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radio/src/gui/480x272/bitmapbuffer.h
+7 -11
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@@ -256,17 +256,13 @@ class BitmapBuffer: public BitmapBufferBase<uint16_t>
template<class T>
void drawScaledBitmap(const T * bitmap, coord_t x, coord_t y, coord_t w, coord_t h)
{
coord_t bitmapWidth = bitmap->getWidth();
float scale = float(h) / bitmap->getHeight();
int width = (0.5 + bitmapWidth) * scale;
if (width > w) {
int ww = (0.5 + w) / scale;
drawBitmap(x, y, bitmap, (bitmapWidth - ww)/2, 0, ww, 0, scale);
}
else {
drawBitmap(x+(w-width)/2, y, bitmap, 0, 0, 0, 0, scale);
}
float vscale = float(h) / bitmap->getHeight();
float hscale = float(w) / bitmap->getWidth();
float scale = vscale < hscale ? vscale : hscale;
int xshift = (w - (bitmap->getWidth() * scale)) / 2;
int yshift = (h - (bitmap->getHeight() * scale)) / 2;
drawBitmap(x + xshift, y + yshift, bitmap, 0, 0, 0, 0, scale);
}
protected: