摘錄的WinForm control 開發1..BorderLabel

BorderLabel ，對普通的winform拓展。

1，可以調整字型位置

2，可以調整的前景色彩，後景色

3，可以調整字型位置 

關鍵代碼如下。 

代碼繪製string對象在畫板上：
//First, we begin by setting the smoothing mode to
            //AntiAlias, to reduce image sharpening and improve our drawnings
            e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;

//使用消除鋸齒模型，增加圖片的顯示品質。
            base.OnPaint(e);
            this.drawningPath.Reset();

            //Second, lets use a GraphicsPath object and write our string into it.
            //Our objective, however, is to measure the how much screen space our
            //drawning will occupy.
在路徑中加入字串
            drawningPath.AddString(this.text, this.Font.FontFamily, (int)this.Font.Style, this.Font.Size,
                new Point(0, 0), StringFormat.GenericTypographic);

            //Then, lets calculate the area occuped by our drawning...
            this.drawningSize = GetPathSize(drawningPath);

            //..and remember to sum also the future border size
            this.drawningSize.Height += this.borderSize + 5;
            this.drawningSize.Width += this.borderSize + 5;

            //Lets determine then how we should align our text in
            //the control's area, both horizontally and vertically

            //If text is Left-Aligned
            if (this.textAlign == ContentAlignment.TopLeft ||
                this.textAlign == ContentAlignment.MiddleLeft ||
                this.textAlign == ContentAlignment.BottomLeft)
                this.drawningPoint.X = this.Padding.Left;

            //If text is Center-Aligned
            else if (this.textAlign == ContentAlignment.TopCenter ||
                     this.textAlign == ContentAlignment.MiddleCenter ||
                     this.textAlign == ContentAlignment.BottomCenter)
                drawningPoint.X = (this.Width - this.drawningSize.ToSize().Width) / 2;

            //If text is Right-Aligned
            else drawningPoint.X = this.Width - (this.Padding.Right + drawningSize.ToSize().Width);

            //If text is Top-Aligned
            if (this.textAlign == ContentAlignment.TopLeft ||
                this.textAlign == ContentAlignment.TopCenter ||
                this.textAlign == ContentAlignment.TopRight)
                drawningPoint.Y = this.Padding.Top;

            //If text is Middle-Aligned
            else if (this.textAlign == ContentAlignment.MiddleLeft ||
                     this.textAlign == ContentAlignment.MiddleCenter ||
                     this.textAlign == ContentAlignment.MiddleRight)
                drawningPoint.Y = (this.Height - drawningSize.ToSize().Height) / 2;

            //If text is Bottom-Aligned
            else drawningPoint.Y = this.Height - (this.Padding.Bottom + drawningSize.ToSize().Height);

            //After that we can reset our path so we can draw the text in the proper place now
            drawningPath.Reset();

            //Next, we start add our text into its place, ...
            drawningPath.AddString(this.text, this.Font.FontFamily, (int)this.Font.Style, this.Font.Size,
                this.drawningPoint, StringFormat.GenericTypographic);
//調整字串對齊。
            //... and then lets use our pen and draw our text to screen
            e.Graphics.DrawPath(drawningPen, drawningPath);

            //So lets reset our path and do it again, but now for the foreground
            drawningPath.Reset();

            //Again, we add our text into our path ...
            drawningPath.AddString(this.text, this.Font.FontFamily, (int)this.Font.Style, this.Font.Size,
                this.drawningPoint, StringFormat.GenericTypographic);

            //... but now, we draw also the foreground
            e.Graphics.FillPath(this.drawningForecolorBrush, drawningPath);
            e.Graphics.DrawPath(drawningPen, drawningPath);

 

 

 /Files/csharponworking/BorderLabelTest.rar