自定义按钮与颜色和形状

• 下载demo program - 7.51 Kb
• 下载source - 11.1 Kb

介绍 这是我第一个c#自定义控件。请下载演示程式并按一下。 特性 用户可以定义: 颜色 边框颜色 正常的颜色 正常颜色B 悬停色一个 悬停色B GradientStyle 水平 垂直 ForwardDiagonal BackwardDiagonal ButtonStyle 矩形 椭圆 SmoothingQuality 没有(脆) 高速 抗锯齿 优质 你可以真正感受到点击与它的扁平风格! OnPaint()中的关键技术 SmoothingModeHide,复制Code

//
// set SmoothingMode
//
switch (_SmoothingQuality)
{
    case SmoothingQualities.None:
        e.Graphics.SmoothingMode = SmoothingMode.Default;
        break;
    case SmoothingQualities.HighSpeed:
        e.Graphics.SmoothingMode = SmoothingMode.HighSpeed;
        break;
    case SmoothingQualities.AntiAlias:
        e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
        break;
    case SmoothingQualities.HighQuality:
        e.Graphics.SmoothingMode = SmoothingMode.HighQuality;
        break;
}

LinearGradientModeHide,Code

//
// mode declaration
//
LinearGradientMode mode;

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//
// set LinearGradientMode
//
switch (_GradientStyle)
{
    case GradientStyles.Horizontal:
        mode = LinearGradientMode.Horizontal;
        break;
    case GradientStyles.Vertical:
        mode = LinearGradientMode.Vertical;
        break;
    case GradientStyles.ForwardDiagonal:
        mode = LinearGradientMode.ForwardDiagonal;
        break;
    case GradientStyles.BackwardDiagonal:
        mode = LinearGradientMode.BackwardDiagonal;
        break;
    default:
        mode = LinearGradientMode.Vertical;
        break;
}

LinearGradientBrushHide,Code

//
// brush declaration
//
LinearGradientBrush brush;

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switch (_State)
{
    case _States.Normal:
        brush = new LinearGradientBrush(newRect, 
                _NormalColorA, _NormalColorB, mode);
        switch (_ButtonStyle)
        {
            case ButtonStyles.Rectangle:
                e.Graphics.FillRectangle(brush, newRect);
                e.Graphics.DrawRectangle(new 
                    Pen(_NormalBorderColor, 1), newRect);
                break;
            case ButtonStyles.Ellipse:
                e.Graphics.FillEllipse(brush, newRect);
                e.Graphics.DrawEllipse(new 
                  Pen(_NormalBorderColor, 1), newRect);
                break;

        }
        e.Graphics.DrawString(this.Text, base.Font, 
           new SolidBrush(base.ForeColor), textX, textY);
        break;

    case _States.MouseOver:
        brush = new LinearGradientBrush(newRect, 
              _HoverColorA, _HoverColorB, mode);
        switch (_ButtonStyle)
        {
            case ButtonStyles.Rectangle:
                e.Graphics.FillRectangle(brush, newRect);
                e.Graphics.DrawRectangle(new 
                     Pen(_HoverBorderColor, 1), newRect);
                break;
            case ButtonStyles.Ellipse:
                e.Graphics.FillEllipse(brush, newRect);
                e.Graphics.DrawEllipse(new 
                   Pen(_HoverBorderColor, 1), newRect);
                break;

        }
        e.Graphics.DrawString(this.Text, base.Font, 
          new SolidBrush(base.ForeColor), textX, textY);
        break;

    case _States.Clicked:
        brush = new LinearGradientBrush(newRect, 
              _HoverColorA, _HoverColorB, mode);
        switch (_ButtonStyle)
        {
            case ButtonStyles.Rectangle:
                e.Graphics.FillRectangle(brush, newRect);
                e.Graphics.DrawRectangle(new 
                     Pen(_HoverBorderColor, 2), newRect);
                break;
            case ButtonStyles.Ellipse:
                e.Graphics.FillEllipse(brush, newRect);
                e.Graphics.DrawEllipse(new 
                   Pen(_HoverBorderColor, 2), newRect);
                break;

        }
        e.Graphics.DrawString(this.Text, base.Font, 
          new SolidBrush(base.ForeColor), 
          textX + 1, textY + 1);
        break;
}

另一个控制项目 ProgressBar颜色。 反馈 请为这篇文章投票。 如果你有，请给我发邮件或留下你的信息: 错误报告 代码的改进 任何意见或建议。 本文转载于：http://www.diyabc.com/frontweb/news457.html