/// <summary>
/// Initialises a new instance of <see cref="DisplayIconAttribute"/>
/// </summary>
/// <param name="faviconIcon"></param>
public DisplayIconAttribute(FontIcons faviconIcon)
{
this.Icon = faviconIcon.ToString();
}
/// <summary>
/// 获取图标.
/// </summary>
/// <param name="iconText">图标名称.</param>
/// <param name="imageSize">图标大小.</param>
/// <param name="foreColor">前景色</param>
/// <param name="backColor">背景色.</param>
/// <returns>Bitmap.</returns>
/// <exception cref="FileNotFoundException">Font file not found</exception>
public static Bitmap GetImage(FontIcons iconText, int imageSize = 32, Color?foreColor = null, Color?backColor = null)
{
Dictionary <string, Font> _fs;
if (iconText.ToString().StartsWith("A_"))
{
_fs = m_fontsAwesome;
}
else
{
if (m_fontsElegant.Count <= 0)
{
lock (m_fontsElegant)
{
if (m_fontsElegant.Count <= 0)
{
string strPath = System.Reflection.Assembly.GetExecutingAssembly().CodeBase.ToLower().Replace("file:///", "");
string strDir = System.IO.Path.GetDirectoryName(strPath);
if (!Directory.Exists(Path.Combine(strDir, "IconFont")))
{
Directory.CreateDirectory(Path.Combine(strDir, "IconFont"));
}
string strFile = Path.Combine(strDir, "IconFont\\ElegantIcons.ttf");
if (!File.Exists(strFile))
{
var fs = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("HZH_Controls.IconFont.ElegantIcons.ttf");
FileStream sw = new FileStream(strFile, FileMode.Create, FileAccess.Write);
fs.CopyTo(sw);
sw.Close();
fs.Close();
}
m_fontCollection.AddFontFile(strFile);
float size = MinFontSize;
for (int i = 0; i <= (MaxFontSize - MinFontSize) * 2; i++)
{
m_fontsElegant.Add(size.ToString("F2"), new Font(m_fontCollection.Families[0], size, FontStyle.Regular, GraphicsUnit.Point));
size += 0.5f;
}
}
}
}
_fs = m_fontsElegant;
}
if (!foreColor.HasValue)
{
foreColor = Color.Black;
}
Font imageFont = _fs[MinFontSize.ToString("F2")];
SizeF textSize = new SizeF(imageSize, imageSize);
using (Bitmap bitmap = new Bitmap(48, 48))
using (Graphics graphics = Graphics.FromImage(bitmap))
{
//float size = MaxFontSize;
float fltMaxSize = MaxFontSize;
if (m_cacheMaxSize.ContainsKey(imageSize))
{
fltMaxSize = Math.Max(MaxFontSize, m_cacheMaxSize[imageSize] + 5);
}
while (fltMaxSize >= MinFontSize)
{
Font font = _fs[fltMaxSize.ToString("F2")];
SizeF sf = GetIconSize(iconText, graphics, font);
if (sf.Width < imageSize && sf.Height < imageSize)
{
imageFont = font;
textSize = sf;
break;
}
fltMaxSize -= 0.5f;
}
if (!m_cacheMaxSize.ContainsKey(imageSize) || (m_cacheMaxSize.ContainsKey(imageSize) && m_cacheMaxSize[imageSize] < fltMaxSize))
{
m_cacheMaxSize[imageSize] = fltMaxSize;
}
}
Bitmap srcImage = new Bitmap(imageSize, imageSize);
using (Graphics graphics = Graphics.FromImage(srcImage))
{
if (backColor.HasValue && backColor.Value != Color.Empty && backColor.Value != Color.Transparent)
{
graphics.Clear(backColor.Value);
}
string s = char.ConvertFromUtf32((int)iconText);
graphics.TextRenderingHint = TextRenderingHint.AntiAlias;
graphics.SetGDIHigh();
using (Brush brush2 = new SolidBrush(foreColor.Value))
{
graphics.DrawString(s, imageFont, brush2, new PointF((imageSize - textSize.Width) / 2.0f + 1, (imageSize - textSize.Height) / 2.0f + 1));
}
}
return(srcImage);
}