WPF解析Fnt字体
偶遇需要再 WPF中加载Fnt字体,此做。。。
using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using Helper.JilyImage; namespace Helper.JilyData
{ public class FntInfo
{ public FileInfo FntFileInfo { get; set; } /// <summary> 字体名称 </summary>
public string Name { get; set; } /// <summary> 大小为32像素 </summary>
public int Size { get; set; } /// <summary> 加粗 </summary>
public bool Bold { get; set; } /// <summary> 斜体 </summary>
public bool Italic { get; set; } /// <summary> 编码字符集,没有填写值即使用默认 </summary>
public string Charset { get; set; } /// <summary> 使用Unicode </summary>
public bool Unicode { get; set; } /// <summary> 纵向缩放百分比 </summary>
public double StretchH { get; set; } /// <summary> 开启平滑 </summary>
public bool Smooth { get; set; } /// <summary> 开启抗锯齿 </summary>
public bool Aa { get; set; } /// <summary> 内边距,文字与边框的空隙 </summary>
public FntPadding Padding { get; set; } /// <summary> 外边距,就是相临边缘的距离 </summary>
public FntPadding Spacing { get; set; } public FntCommon Common { get; set; } /// <summary> 此种字体共用到图数 </summary>
public List<FntPage> Pages { get; set; } public List<FntChar> Chars { get; set; } public List<FntKerning> Kernings { get; set; } public Rect Bounds { get; private set; } private FntInfo()
{
this.Common = new FntCommon();
this.Pages = new List<FntPage>();
this.Chars = new List<FntChar>();
this.Kernings = new List<FntKerning>();
} public FntInfo(string fntpath, Encoding encoding = null)
: this()
{
this.FntFileInfo = new FileInfo(fntpath);
if (this.FntFileInfo.Exists)
{
var fntlines = File.ReadAllLines(this.FntFileInfo.FullName, encoding ?? Encoding.Default);
foreach (var item in fntlines)
{
if (item.StartsWith("info"))
{
DecodeInfo(item);
}
else if (item.StartsWith("common"))
{
DecodeCommon(item);
}
else if (item.StartsWith("page"))
{
DecodePage(item);
}
else if (item.StartsWith("char") && !item.StartsWith("chars"))
{
DecodeChar(item);
}
else if (item.StartsWith("kerning") && !item.StartsWith("kernings"))
{
DecodeKerning(item);
}
}
}
} private void DecodeInfo(string str)
{
this.Name = GetValueAfterTittle(str, "face=\"", '"');
this.Size = int.Parse(GetValueAfterTittle(str, "size="));
this.Bold = int.Parse(GetValueAfterTittle(str, "bold=")) != ;
this.Italic = int.Parse(GetValueAfterTittle(str, "italic=")) != ;
this.Charset = GetValueAfterTittle(str, "charset=\"", '"');
this.Unicode = int.Parse(GetValueAfterTittle(str, "unicode=")) != ;
this.StretchH = int.Parse(GetValueAfterTittle(str, "stretchH="));
this.Smooth = int.Parse(GetValueAfterTittle(str, "smooth=")) != ;
this.Aa = int.Parse(GetValueAfterTittle(str, "aa=")) != ;
this.Padding = new FntPadding(GetValueAfterTittle(str, "padding="));
this.Spacing = new FntPadding(GetValueAfterTittle(str, "spacing="));
} private void DecodeCommon(string str)
{
this.Common.LineHeight = int.Parse(GetValueAfterTittle(str, "lineHeight="));
this.Common.Base = int.Parse(GetValueAfterTittle(str, "base="));
this.Common.ScaleW = int.Parse(GetValueAfterTittle(str, "scaleW="));
this.Common.ScaleH = int.Parse(GetValueAfterTittle(str, "scaleH="));
this.Common.Packed = int.Parse(GetValueAfterTittle(str, "lineHeight=")) != ;
} private void DecodePage(string str)
{
var page = new FntPage();
page.Id = int.Parse(GetValueAfterTittle(str, "id="));
page.FilePath = GetValueAfterTittle(str, "file=\"", '"');
page.RealPath = this.FntFileInfo.DirectoryName + "\\" + page.FilePath;
this.Pages.Add(page);
} private void DecodeChar(string str)
{
var fntchar = new FntChar();
fntchar.Id = int.Parse(GetValueAfterTittle(str, "id="));
fntchar.X = int.Parse(GetValueAfterTittle(str, "x="));
fntchar.Y = int.Parse(GetValueAfterTittle(str, "y="));
fntchar.Width = int.Parse(GetValueAfterTittle(str, "width="));
fntchar.Height = int.Parse(GetValueAfterTittle(str, "height="));
fntchar.Xoffset = int.Parse(GetValueAfterTittle(str, "xoffset="));
fntchar.Yoffset = int.Parse(GetValueAfterTittle(str, "yoffset="));
fntchar.Xadvance = int.Parse(GetValueAfterTittle(str, "xadvance="));
fntchar.Page = int.Parse(GetValueAfterTittle(str, "page="));
fntchar.Chnl = int.Parse(GetValueAfterTittle(str, "chnl=")); fntchar.InitData(this); this.Chars.Add(fntchar);
} private void DecodeKerning(string str)
{
var kerning = new FntKerning();
kerning.First = int.Parse(GetValueAfterTittle(str, "first="));
kerning.Second = int.Parse(GetValueAfterTittle(str, "second="));
kerning.Amount = int.Parse(GetValueAfterTittle(str, "amount="));
this.Kernings.Add(kerning);
} public ImageSource GetStrImage(string text)
{
//1 移除不在范围内的字符
List<char> chars = new List<char>();
foreach (var item in text)
{
if (this.Chars.FirstOrDefault(fc => fc.Id == (int)item) != null)
{
chars.Add(item);
}
} int viewwidth = ;
int viewheight = ;
int count = chars.Count - ;
for (int i = ; i <= count; i++)
{
char item = chars[i];
var c = this.Chars.FirstOrDefault(fc => fc.Id == (int)item);
if (c != null)
{
//设置宽高,用最大高度
viewheight = (c.Height + c.Yoffset) > viewheight ? (c.Height + c.Yoffset) : viewheight;
viewwidth += (c.Xadvance); if (i != )
{
var kerning = this.Kernings.FirstOrDefault(k => k.First == (int)item && k.Second == (int)chars[i - ]);
if (kerning != null)
{
//补齐长度,在存在偏移的时候,偏移量也计算在总长度
viewwidth += kerning.Amount;
}
}
}
} int currentxoffset = ;
var img = new Bitmap(viewwidth, viewheight);
using (var g = Graphics.FromImage(img))
{
for (int i = ; i <= count; i++)
{
char item = chars[i];
var c = this.Chars.FirstOrDefault(fc => fc.Id == (int)item);
if (c != null)
{
var xposition = currentxoffset + c.Xoffset;
int yposition = c.Yoffset; if (i != )
{
//前后两个字符进行偏移
var kerning = this.Kernings.FirstOrDefault(k => k.First == (int)item && k.Second == (int)chars[i - ]);
if (kerning != null)
{
//确定位置,和前一个相比,加上需要偏移的位置
xposition += kerning.Amount;
}
}
//当显示文字为空格 char 32 时不需要绘制
if (c.Data != null)
{
g.DrawImage(c.Data, xposition, yposition, c.Width, c.Height);
}
//叠加当前绘制过的长度
currentxoffset += (c.Xadvance);
}
}
} Bounds = new Rect(, , viewwidth, viewheight); return img.ConvertImageSource();
} private string GetValueAfterTittle(string s, string tittle, char endwith = ' ')
{
//补齐一个空格,用来判断最后的字符
var str = s + " ";
if (!string.IsNullOrWhiteSpace(str))
{
int firstindex = str.IndexOf(tittle) + tittle.Length;
int lastindex = str.IndexOf(endwith, firstindex);
if (firstindex != - && lastindex != -)
{
return new string(str.Skip(firstindex).Take(lastindex - firstindex).ToArray());
}
}
return "";
} } public class FntCommon
{
/// <summary> 行高,如果遇到换行符时,绘制字的位置坐标的Y值在换行后增加的像素值 </summary>
public int LineHeight { get; set; } /// <summary> 字的基本大小 </summary>
public int Base { get; set; } /// <summary> 图片宽 </summary>
public int ScaleW { get; set; } /// <summary>
/// 图片高
/// </summary>
public int ScaleH { get; set; } //没搞明白什么用
//alphaChnl = int.Parse(GetValueAfterTittle(str, "alphaChnl="));
//redChnl = int.Parse(GetValueAfterTittle(str, "redChnl="));
//greenChnl = int.Parse(GetValueAfterTittle(str, "greenChnl="));
//blueChnl = int.Parse(GetValueAfterTittle(str, "blueChnl=")); /// <summary> 图片压缩 </summary>
public bool Packed { get; set; } public FntCommon()
{ }
} public class FntPage
{
/// <summary> 当前页数 </summary>
public int Id { get; set; } /// <summary> 图片相对fnt文件的路径 </summary>
public string FilePath { get; set; } private string realPath;
public string RealPath
{
get { return realPath; }
set
{
realPath = value;
FntImage = BitmapHelper.GetBitmap(realPath);
}
} public Bitmap FntImage { get; private set; } } public class FntChar
{ /// <summary> 文字的 ID </summary>
public int Id { get; set; } /// <summary> 所在图片的X </summary>
public int X { get; set; }
/// <summary> 所在图片的Y </summary>
public int Y { get; set; } /// <summary> 宽 </summary>
public int Width { get; set; }
/// <summary> 高 </summary>
public int Height { get; set; } /// <summary> 像素偏移X </summary>
public int Xoffset { get; set; }
/// <summary> 像素偏移Y </summary>
public int Yoffset { get; set; } /// <summary> 绘制完后相应位置的x往后移 ... 像素再画下一个字 </summary>
public int Xadvance { get; set; } /// <summary> 所在图片页 </summary>
public int Page { get; set; } /// <summary> 未知 </summary>
public int Chnl { get; set; } public Bitmap Data { get; private set; } static int count = ;
public void InitData(FntInfo fntinfo)
{
count++;
var page = fntinfo.Pages.FirstOrDefault(i => i.Id == this.Page); if (page != null)
{
var rect = new Rectangle(this.X, this.Y, this.Width, this.Height);
if (Rectangle.Empty != rect && !(this.Width == && this.Height == ))
{
this.Data = page.FntImage.Clone(rect, page.FntImage.PixelFormat);
}
}
} public override string ToString()
{
return ((char)this.Id).ToString();
}
} public class FntKerning
{
/// <summary> 位移的前字符 </summary>
public int First { get; set; } /// <summary> 位移的后字符 </summary>
public int Second { get; set; } /// <summary> X右移位置,正为右 </summary>
public int Amount { get; set; } } public struct FntPadding
{
public int V1 { get; set; }
public int V2 { get; set; }
public int V3 { get; set; }
public int V4 { get; set; } public FntPadding(int v1, int v2, int v3, int v4)
: this()
{
this.V1 = v1;
this.V2 = v2;
this.V3 = v3;
this.V4 = v4;
} public FntPadding(string value)
: this()
{
var values = value.Split(',');
if (values.Length == )
{
this.V1 = int.Parse(values[]);
this.V2 = int.Parse(values[]);
this.V3 = int.Parse(values[]);
this.V4 = int.Parse(values[]);
}
else if (value.Length == )
{
this.V1 = int.Parse(values[]);
this.V2 = int.Parse(values[]);
this.V3 = int.Parse(values[]);
this.V4 = int.Parse(values[]);
}
}
}
}
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