Question

在WinForms应用程序中，我试图测量要绘制的某些文本的大小，而没有填充。这是我最近得到的...

    protected override void OnPaint(PaintEventArgs e) {
        DrawIt(e.Graphics);
    }

    private void DrawIt(Graphics graphics) {
        var text = "123";
        var font = new Font("Arial", 32);
        var proposedSize = new Size(int.MaxValue, int.MaxValue);
        var measuredSize = TextRenderer.MeasureText(graphics, text, font, proposedSize, TextFormatFlags.NoPadding);
        var rect = new Rectangle(100, 100, measuredSize.Width, measuredSize.Height);
        graphics.DrawRectangle(Pens.Blue, rect);
        TextRenderer.DrawText(graphics, text, font, rect, Color.Black, TextFormatFlags.NoPadding);
    }

...但是从结果中可以看到...

...仍然有大量填充，特别是在顶部和底部。有什么方法可以测量绘制字符的实际边界（确实很糟糕，例如打印到图像然后寻找绘制的像素）？

谢谢。

Answer 1

（我将这个答案标记为“ the”答案，以便人们知道它已经被回答了，但是@TaW实际上提供了解决方案-请参阅上面的链接。）

@TaW-这就是窍门。我仍在努力使文字到达我想要的位置，但我实在是太过困难了。这是我最后得到的代码...

    protected override void OnPaint(PaintEventArgs e) {
        e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
        DrawIt(e.Graphics);
    }

    private void DrawIt(Graphics graphics) {
        var text = "123";
        var font = new Font("Arial", 40);
        // Build a path containing the text in the desired font, and get its bounds.
        GraphicsPath path = new GraphicsPath();
        path.AddString(text, font.FontFamily, (int)font.Style, font.SizeInPoints, new Point(0, 0), StringFormat.GenericDefault);
        var bounds = path.GetBounds();
        // Move it where I want it.
        var xlate = new Matrix();
        xlate.Translate(100, 100);
        path.Transform(xlate);
        // Draw the path (and a bounding rectangle).
        graphics.DrawPath(Pens.Black, path);
        bounds = path.GetBounds();
        graphics.DrawRectangle(Pens.Blue, bounds.Left, bounds.Top, bounds.Width, bounds.Height);
    }

...这是结果（请注意漂亮的紧边框）...

Answer 2

您尝试过

Graphics.MeasureString("myString", myFont, int.MaxValue, StringFormat.GenericTypographic)

WinForms：无填充方式测量文本

2 个答案: