一个大胆的生成条形码字符串的一部分 [英] Bold a part of string in generated barcode

问题描述

我生成的条形码作为图像。条形码是由几个不同的值，如量，长度，宽度和m2的。这些数字显示了条形码下方，因为所有的用户条目的摘要。有没有办法要么加粗或下划线的条形码下的总结平方米（平方米）？请参考下面需要什么样：

I am generating a barcode as an image. The barcode consists of few different values, such as amount, length, width and m2. These numbers are displaying below the barcode as a summary of all user entries. Is there a way to either bold or underline the m2 (square meters) in the summary under the barcode? Please see below sample of what is needed:

的

这里的代码中，我用它来生成条码：

Here's the code I use to generate the barcode:

private void generate_Click(object sender, EventArgs e)
        {

            String barcode = summary.Text;
            Bitmap bitmap = new Bitmap(barcode.Length * 40, 150);
            using (Graphics graphics = Graphics.FromImage(bitmap))
            {
            Font ofont = new System.Drawing.Font("IDAutomationHC39M", 20);
            PointF point = new PointF (2f, 2f);
                SolidBrush black = new SolidBrush(Color.Black);
                SolidBrush White = new SolidBrush(Color.White);
                graphics.FillRectangle(White, 0, 0, bitmap.Width, bitmap.Height);
                graphics.DrawString("*" + barcode + "*", ofont, black, point);
            }
            using (MemoryStream ms = new MemoryStream())
            {
                bitmap.Save(ms, ImageFormat.Png);
                box4.Image = bitmap;
                box4.Height = bitmap.Height;
                box4.Width = bitmap.Width;
            }
        }

的

推荐答案

您需要突破文本分成2部分，

If this was just text

You need to break the text up into 2 parts,

string barcode1; //the normal bit
string barcode2; //the bold/underlined bit

Font ofont = new System.Drawing.Font("IDAutomationHC39M", 20);
Font ofontBold = new System.Drawing.Font("IDAutomationHC39M", 20, FontStyle.Bold);

然后渲染文本3个阶段，测量每个前面部分的抵消：

Then render text in 3 stages, measuring the offset of each previous part:

graphics.DrawString("*" + barcode1, ofont, black, point);

var point2 = new PointF(point.X + graphics.MeasureString("*" + barcode1, ofont).Width, point.Y);
graphics.DrawString(barcode2, ofontBold, black, point2);

var point3 = new PointF(point2.X + graphics.MeasureString(barcode2, ofontBold).Width, point2.Y);
graphics.DrawString("*", ofont, black, point3);

但是字体包括行

所以，我认为你能做的最好是使用相同字符串测量技术来绘制一个下划线：

However the font includes the lines

So I think the best you can do is to draw an underline using the same string measuring techniques:

string barcode1; //the normal bit
string barcode2; //the underlined bit

var lineStartX = point.X + graphics.MeasureString("*" + barcode1, ofont).Width;
var lineWidth = graphics.MeasureString(barcode2).Width;

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