如何在形状中绘制文字？ C＃

Question

这个问题很简单，假设你有一个形状（可以说是一个矩形）和一个文本（例如“hello”），所以它会将文本全部写入矩形的边界，适合，例如：

hello hello hello hello 

hello    hello 

hello    hello 

hello hello hello hello 

为了做到这一点我假设你需要使用图形变量，我只是不知道该怎么做。

一种用于在一个位图对象绘制的字符串的代码：

Bitmap tempp = new Bitmap(1, 1); 
Graphics g = Graphics.FromImage(tempp); 
SizeF w = g.MeasureString("22", new Font("Tahoma", 200));//in order to get the size of the string as a pixel measurement 
Bitmap bmp = new Bitmap((int)w.Width+1, (int)w.Height+1);//the bitmap that will contain the text as a picture 
RectangleF rectf = new RectangleF(0, 0, (int)w.Width+1, (int)w.Height+1); 
g = Graphics.FromImage(bmp); 
g.SmoothingMode = SmoothingMode.AntiAlias; 
g.InterpolationMode = InterpolationMode.HighQualityBicubic; 
g.PixelOffsetMode = PixelOffsetMode.HighQuality; 
g.TextRenderingHint = TextRenderingHint.AntiAliasGridFit; 
StringFormat format = new StringFormat() 
{ 
    Alignment = StringAlignment.Center, 
    LineAlignment = StringAlignment.Center 
}; 
g.DrawString("22", new Font("Tahoma", 200), Brushes.Black, rectf, format); 
g.Flush(); 

预先感谢。

对于第二点意见：

hello hello hello 
hel   llo 
hel   llo 
hello hello hello 

Answer 1

我希望这是你所需要的。这里没有太多解释。逻辑非常简单。

public string MyString = "Hello" 
    protected override void OnPaint(PaintEventArgs e) 
    { 
     base.OnPaint(e); 
     var g = e.Graphics; 
     var strFont = new Font("Tahoma", 10); 
     var strSizeF = g.MeasureString(MyString, strFont); 

     var canvas = new Rectangle 
     { 
      Height = 200, 
      Width = 200, 
      Location = new Point(10, 10), 
     }; 

     g.DrawRectangle(new Pen(new SolidBrush(Color.Blue)), canvas); 

     var nx = (int)(canvas.Width/strSizeF.Width); 
     var ny = (int)(canvas.Height/strSizeF.Height); 
     var spacingX = (canvas.Width - nx * strSizeF.Width)/(nx-1); 
     var spacingY = (canvas.Height - ny * strSizeF.Height)/(ny-1); 

     //draw top row and bottom row 
     int i; 
     for (i = 0; i < nx; i++) 
     { 
      g.DrawString(
       MyString, 
       strFont, 
       Brushes.Black, 
       new PointF(canvas.X + i*(strSizeF.Width + spacingX), canvas.Y) 
       ); 
      g.DrawString(
       MyString, 
       strFont, 
       Brushes.Black, 
       new PointF(canvas.X + i * (strSizeF.Width + spacingX), canvas.Y + canvas.Height - strSizeF.Height) 
      ); 
     } 

     //divide the string into half 
     var isLengthOdd = MyString.Length % 2 != 0; 
     var substr1 = MyString.Substring(0, MyString.Length/2 + (isLengthOdd ? 1 : 0)); 
     var substr2 = MyString.Substring(MyString.Length/2, MyString.Length - MyString.Length/2); 
     var substr2SizeF = g.MeasureString(substr2, strFont); 
     //draw side rows 
     for (i = 1; i < ny - 1; i++) 
     { 
      g.DrawString(
       substr1, 
       strFont, 
       Brushes.Black, 
       new PointF(canvas.X, canvas.Y + i * (strSizeF.Height + spacingY)) 
      ); 
      g.DrawString(
       substr2, 
       strFont, 
       Brushes.Black, 
       new PointF(canvas.X + canvas.Width - substr2SizeF.Width, canvas.Y + i * (strSizeF.Height + spacingY)) 
      ); 
     } 

    } 

结果：