/// <inheritdoc />
public override int GetHashCode()
{
unchecked
{
return(((PartText != null ? PartText.GetHashCode() : 0) * 397) ^ (Location != null ? Location.GetHashCode() : 0));
}
}
public int GetSymbolByOffset(int x, RichTextParameters parameters, IntPtr hdc)
{
if (x < 0)
{
return(-1);
}
Font hFont = GetParametrizedFont(parameters);
RECT rc = new RECT();
rc.left = 0;
rc.top = 0;
int currentX = 0;
IntPtr oldFont = Win32Declarations.SelectObject(hdc, ourFontCache.GetHFont(hFont));
try
{
for (int i = 0; i < PartText.Length; i++)
{
Win32Declarations.DrawText(hdc, PartText.Substring(i, 1), 1, ref rc, DrawTextFormatFlags.DT_CALCRECT | DrawTextFormatFlags.DT_SINGLELINE | DrawTextFormatFlags.DT_NOPREFIX | DrawTextFormatFlags.DT_NOCLIP);
currentX += rc.right - rc.left;
if (currentX > x)
{
return(i);
}
}
return(-1);
}
finally
{
Win32Declarations.SelectObject(hdc, oldFont);
}
}