/// <summary>
/// Load font data.
/// </summary>
/// <param name="fontFileName">FontFile Name</param>
/// <param name="id">Face index to select a font faces in a single file.</param>
public void LoadFontData(String fontFileName, int id)
{
using (CvString csFontFileName = new CvString(fontFileName))
{
FreetypeInvoke.cveFreeType2LoadFontData(_ptr, csFontFileName, id);
}
}
/// <summary>
/// Release all the unmanaged memory associate with this object
/// </summary>
protected override void DisposeObject()
{
if (_sharedPtr != IntPtr.Zero)
{
FreetypeInvoke.cveFreeType2Release(ref _sharedPtr);
_algorithmPtr = IntPtr.Zero;
_ptr = IntPtr.Zero;
}
}
public Size GetTextSize(
String text,
int fontHeight, int thickness,
ref int baseLine)
{
Size s = new Size();
using (CvString csText = new CvString(text))
{
FreetypeInvoke.cveFreeType2GetTextSize(_ptr, csText, fontHeight, thickness, ref baseLine, ref s);
}
return(s);
}
/// <summary>
/// Renders the specified text string in the image. Symbols that cannot be rendered using the specified font are replaced by "Tofu" or non-drawn.
/// </summary>
/// <param name="img">Image.</param>
/// <param name="text">Text string to be drawn.</param>
/// <param name="org">Bottom-left/Top-left corner of the text string in the image.</param>
/// <param name="fontHeight">Drawing font size by pixel unit.</param>
/// <param name="color">Text color.</param>
/// <param name="thickness">Thickness of the lines used to draw a text when negative, the glyph is filled. Otherwise, the glyph is drawn with this thickness.</param>
/// <param name="lineType">Line type</param>
/// <param name="bottomLeftOrigin">When true, the image data origin is at the bottom-left corner. Otherwise, it is at the top-left corner.</param>
public void PutText(
IInputOutputArray img,
String text,
Point org,
int fontHeight,
MCvScalar color,
int thickness,
LineType lineType,
bool bottomLeftOrigin
)
{
using (InputOutputArray ioaImg = img.GetInputOutputArray())
using (CvString csText = new CvString(text))
{
FreetypeInvoke.cveFreeType2PutText(_ptr, ioaImg, csText, ref org, fontHeight, ref color, thickness, lineType, bottomLeftOrigin);
}
}
/// <summary>
/// Set the number of split points from bezier-curve to line. If you want to draw large glyph, large is better. If you want to draw small glyph, small is better.
/// </summary>
/// <param name="num">Number of split points from bezier-curve to line</param>
public void SetSplitNumber(int num)
{
FreetypeInvoke.cveFreeType2SetSplitNumber(_ptr, num);
}
/// <summary>
/// Create instance to draw UTF-8 strings.
/// </summary>
public Freetype2()
{
_ptr = FreetypeInvoke.cveFreeType2Create(ref _algorithmPtr, ref _sharedPtr);
}
