/// <summary>
/// 没有任何显示格式限制下的打印
/// </summary>
/// <param name="g"></param>
/// <param name="propertySystem"></param>
private static void _drawNoFormat(Graphics g, AojPrintPropertySystem propertySystem)
{
StringFormat sf = GetStringFormatAlignment(propertySystem);
g.DrawString(propertySystem.Value, propertySystem.GetFont(), GetBrush(propertySystem.FontColor)
, propertySystem.RealX, propertySystem.RealY, sf);
}
/// <summary>
/// 绘画文本，如果有特殊的处理如转换格式等均在此处做转换处理后输出
/// </summary>
/// <param name="g">画板</param>
/// <param name="propertySystem">属性</param>
public static void DrawString(Graphics g, AojPrintPropertySystem propertySystem)
{
//文本为空时，不进行打印
if (string.IsNullOrEmpty(propertySystem.Value))
{
return;
}
//检查打印的字符串是否需要进行格式转换
if (propertySystem.ViewFormat != 0)
{
_formatString(propertySystem);
}
//如果Font不为空时进行打印
if (propertySystem.GetFont() != null)
{
//读取字体的显示模式
FontDisplayFormat fontDisplayFormat= AojUnitConvert.GetEnumType<FontDisplayFormat,string>(propertySystem.FontDisplayFormat);
switch (fontDisplayFormat)
{
case FontDisplayFormat.NoFormat:
_drawNoFormat(g,propertySystem);
break;
case FontDisplayFormat.AutoSize:
_drawAutoSize(g, propertySystem);
break;
case FontDisplayFormat.AutoFormat:
default:
break;
}
}
}
/// <summary>
/// 自适应区域宽高度进行打印
/// </summary>
/// <param name="g">图像区域</param>
/// <param name="propertySystem"></param>
private static void _drawAutoSize(Graphics g, AojPrintPropertySystem propertySystem)
{
Font _currentFont = propertySystem.GetFont();
while (true)
{
SizeF size = g.MeasureString(propertySystem.Value, _currentFont);
//如果算出来的大小均在指定的范围内则跳出循环，打印出来
if ((size.Width < propertySystem.Width) && (size.Height < propertySystem.Height))
{
break;
}
if (_currentFont.Size - 0.1f < 0)
{
//Throw Exception
_currentFont = null;
break;
}
_currentFont = new Font(_currentFont.FontFamily, _currentFont.Size - 0.1f, _currentFont.Style);
}
if (_currentFont != null)
{
StringFormat sf = GetStringFormatAlignment(propertySystem);
g.DrawString(propertySystem.Value, _currentFont, GetBrush(propertySystem.FontColor)
, propertySystem.RealX, propertySystem.RealY, sf);
}
}
