* Copyright 2021, Pascal R. G. Abresch, nep@packageloss.eu.
* Distributed under the terms of the MIT License.
*/
#include <ControlLook.h>
#include <View.h>
namespace BPrivate {
void
AdoptScrollBarFontSize(BView* view)
{
float maxSize = be_control_look->GetScrollBarWidth();
BFont testFont = be_plain_font;
float currentSize;
font_height fontHeight;
float minFontSize = 0.0f;
float maxFontSize = 48.0f;
while (maxFontSize - minFontSize > 1.0f) {
float midFontSize = (maxFontSize + minFontSize) / 2.0f;
testFont.SetSize(midFontSize);
testFont.GetHeight(&fontHeight);
currentSize = fontHeight.ascent + fontHeight.descent;
if (currentSize > maxSize)
maxFontSize = midFontSize;
else
minFontSize = midFontSize;
}
view->SetFontSize(minFontSize);
}
}
