使用FormattedText创建位图 [英] Using FormattedText to create a Bitmap

问题描述

在一个C＃形式的项目，我可以写出如下code得到像我想要什么，但似乎有两个不同的世界，我想融合。

In a C# forms project, I can write the following code to get something like what I want, but it seems that there are two different "worlds" that I am trying to fuse.

FormattedText text = new FormattedText(textBox1.Text, CultureInfo.GetCultureInfo("en-us"), System.Windows.FlowDirection.LeftToRight, new Typeface("Tahoma"), 20, System.Windows.Media.Brushes.Black);
text.MaxTextWidth = 480;
text.MaxTextHeight = 480;
DrawingVisual d = new DrawingVisual();
DrawingContext d1 = d.RenderOpen();
d1.DrawText(text, new System.Windows.Point(0, 0));
d1.Close();
RenderTargetBitmap bmp = new RenderTargetBitmap(480, 480, 120, 96, PixelFormats.Pbgra32);
bmp.Render(d);
System.Windows.Controls.Image I=new System.Windows.Controls.Image();
I.Source = bmp;

获取我 Windows.Media.ImageSource 。我要迁移的整个事情要使用 System.Drawing中命名空间。

Gets me a Windows.Media.ImageSource. I want to migrate the whole thing to use the System.Drawing namespace.

因为我基本上不得不进口WPF库作出上述code的工作，我所希望做的是如此基本，我怎么能做到这一点在Windows窗体，preferably在非cludgy方式。

Since I basically had to import WPF libraries to make the above code work, and what I am looking to do is so basic, how can I do it in Windows Forms, preferably in a non-cludgy way.

注意：所有我真正想要做的是汲取的方式，允许换行的位图文字，然后操纵它作为一个位图。如果这样做，（在Windows窗体），将，如果没有更好的工作一样的简单的方法。

Note: All I really want to do is draw text on a bitmap in a way that allows line wrapping, and then manipulate it as a bitmap. If there is a simpler way of doing that (in Windows Forms) that would work just as well, if not better.

推荐答案

是的，这是WPF code，一个完全不同的世界。该System.Drawing中的版本应该像这样的：

Yes, that's WPF code, an entirely different world. The System.Drawing version ought to resemble something like this:

var bmp = new Bitmap(480, 480);
using (var gr = Graphics.FromImage(bmp)) {
    gr.Clear(Color.White);
    TextRenderer.DrawText(gr, textBox1.Text, this.Font, 
        new Rectangle(0, 0, bmp.Width, bmp.Height), 
        Color.Black, Color.White,
        TextFormatFlags.WordBreak | TextFormatFlags.Left);
}
if (pictureBox1.Image != null) pictureBox1.Image.Dispose();
pictureBox1.Image = bmp;

我猜在窗体上的图片框。

I guessed at a picture box on the form.

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