/// <summary>
/// 创建字体如果能找到则直接返回
/// </summary>
/// <param name="fileName">字体TTF文件路径</param>
/// <param name="fontName">字体名</param>
/// <param name="fontSize">字体大小</param>
/// <returns></returns>
public IntPtr CreateFontFromBuffer(byte[] buffer, string fontName, uint faceIndex = 0)
{
IntPtr ret = FindFont(fontName, faceIndex);
var defaultPrt = default(IntPtr);
if (ret != defaultPrt)
{
return(ret);
}
if (buffer == null || buffer.Length <= 0)
{
return(defaultPrt);
}
int err = New_Memory_Face(m_FreeTypePointer, buffer, faceIndex, out ret);
if (err != 0)
{
throw new Exception(string.Format("Could not open font: errCode {0:D}", err));
}
FontType key = new FontType();
key.fontName = fontName;
key.faceIndex = faceIndex;
FreeTypeFont font = new FreeTypeFont();
font.font = ret;
m_FontsMap[key] = font;
ApplyFont(font);
return(ret);
}
// 查找文字
public PicNode <FontRectKey> FindChar(char value, FreeTypeFont font)
{
if (m_Combine == null || font == null || font.font == null)
{
return(null);
}
return(m_Combine.FindPicNode(value, font.currentSize, font.sizeType, font.hDpi, font.vDpi));
}
private void ChangeFontSize(FreeTypeFont font, uint size)
{
if (font == null || font.font == default(IntPtr))
{
return;
}
if (font.currentSize == size)
{
return;
}
font.currentSize = size;
ApplyFont(font);
}
private void ChangePixelMode(uint size, FreeTypeFont font)
{
if (font == null || font.font == null)
{
return;
}
bool isChanged = font.currentSize != size || font.sizeType != FreeTypeSizeType.usePixel;
if (!isChanged)
{
return;
}
font.currentSize = size;
font.sizeType = FreeTypeSizeType.usePixel;
ApplyFont(font);
}
private void ChangeDPIMode(uint hDpi, uint vDpi, uint size, FreeTypeFont font)
{
if (font == null || font.font == null)
{
return;
}
bool isChanged = font.hDpi != hDpi || font.vDpi != vDpi || font.currentSize != size || font.sizeType != FreeTypeSizeType.useDPI;
if (!isChanged)
{
return;
}
font.hDpi = hDpi;
font.vDpi = vDpi;
font.currentSize = size;
font.sizeType = FreeTypeSizeType.useDPI;
ApplyFont(font);
}
private void DestroyFont(FreeTypeFont font)
{
if (font == null)
{
return;
}
var defaultPtr = default(IntPtr);
if (font.font != defaultPtr)
{
Done_Face(font.font);
font.font = defaultPtr;
}
if (font.fontTexture != null)
{
font.fontTexture.OnDestroy();
font.fontTexture = null;
}
}
private void ApplyFont(FreeTypeFont font)
{
if (font == null || font.font == default(IntPtr))
{
return;
}
int ret = -1;
if (font.sizeType == FreeTypeSizeType.useDPI)
{
ret = Set_Char_Size(font.font, 0, (int)font.currentSize, font.hDpi, font.vDpi);
}
else if (font.sizeType == FreeTypeSizeType.usePixel)
{
ret = Set_Pixel_Sizes(font.font, 0, font.currentSize);
}
if (ret != 0)
{
throw new Exception("ApplyFont Error!");
}
}
