Question

我试图编写一个输出给定文本块的PNG图像的代码。我使用System.Drawing来实现这一目标。

我的问题是输出图像中的文字格式错误。

以下是我用来绘制输出的函数的代码：

static Bitmap FromTextToPic(string text, Int16 size)
    {
        //create dummy Bitmap object
        Bitmap bitmapImage = new Bitmap(2, 2);

        //create dummy measurements
        int imageWidth = 0;
        int imageHeight = 0;

        //naming font
        font = "Lohit-Devanagari";

        // Creates the Font object for the image text drawing.
        System.Drawing.Font fontObject = new System.Drawing.Font(font, size, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Pixel);

        // Creates a graphics object to measure the text's width and height.
        Graphics graphicsObject = Graphics.FromImage(bitmapImage);

        // This is where the bitmap size is determined.
        imageWidth = (int)graphicsObject.MeasureString(text, fontObject).Width;
        imageHeight = (int)graphicsObject.MeasureString(text, fontObject).Height;

        // Creates the bmpImage again with the correct size for the text and font.
        bitmapImage = new Bitmap(bitmapImage, new Size(imageWidth, imageHeight));


        // Adds the colors to the new bitmap.
        graphicsObject = Graphics.FromImage(bitmapImage);

        // Sets Background color to white
        graphicsObject.Clear(System.Drawing.Color.White);

        //enables optimization for LCD screens
        graphicsObject.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;

        //enables antialiasing
        graphicsObject.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias; 

        //draws text to picture with black foreground color
        graphicsObject.DrawString(text, fontObject, new SolidBrush(System.Drawing.Color.Black), 0, 0, StringFormat.GenericDefault);

        graphicsObject.Flush();

        return (bitmapImage);
    }

即使我指定＆＃34; Lohit-Devanagari＆＃34;作为字体，我总是得到＆＃34; Mangal＆＃34;字体（都是梵文字体）。那么，我做错了什么？

此外，如果文本中没有换行符，则输出会延伸到很长的距离（如this picture中所示）。有没有办法将输出图像包装到某个固定宽度？

Answer 1

而不是：

//naming font
font = "Lohit-Devanagari";

试试这个：

//naming font
FontFamily font = new FontFamily("Lohit Devanagari");

字体名称可能没有“ - ”字符。

如果声明一个新对象FontFamily，如果该字体不存在则会出现异常。所以你必须下载并安装它......

绘制图像中的文字格式错误（C＃）

1 个答案: