public partial class GlorifyCheckBox : CheckBox
{
public GlorifyCheckBox()
{
InitializeComponent();
FontAspect = getAspect(); //获取当前控件文本的读取方向
}
#region 变量
private bool FontAspect = false; //判断字体的方向
private int Measurement = 255; //设置渐变的初始值
LinearGradientBrush Periphery_br; //外圆的颜色
LinearGradientBrush Central_br; //移入控件时中圆的颜色
LinearGradientBrush NoCentral_br; //无操作时中圆的颜色
#endregion
#region 添加属性
public enum StyleSort
{
Null = 0, //无
Integer = 1, //整数
Decimal = 2, //小数
}
private Color TPeripheryColor = Color.DarkBlue;
[Browsable(true), Category("设置填充颜色"), Description("外圆的颜色")] //在“属性”窗口中显示DataStyle属性
public Color PeripheryColor
{
get { return TPeripheryColor; }
set
{
TPeripheryColor = value;
this.Invalidate();
}
}
private Color TCentralColor = Color.CornflowerBlue;
[Browsable(true), Category("设置填充颜色"), Description("移入控件时中圆的颜色")] //在“属性”窗口中显示DataStyle属性
public Color CentralColor
{
get { return TCentralColor; }
set
{
TCentralColor = value;
this.Invalidate();
}
}
private Color TNoCentralColor = Color.PowderBlue;
[Browsable(true), Category("设置填充颜色"), Description("无操作时中圆的颜色")] //在“属性”窗口中显示DataStyle属性
public Color NoCentralColor
{
get { return TNoCentralColor; }
set
{
TNoCentralColor = value;
this.Invalidate();
}
}
private Color TStippleColor = Color.DarkBlue;
[Browsable(true), Category("设置填充颜色"), Description("选中后内圆的颜色")] //在“属性”窗口中显示DataStyle属性
public Color StippleColor
{
get { return TStippleColor; }
set
{
TStippleColor = value;
this.Invalidate();
}
}
#endregion
#region 事件
/// <summary>
/// 控件在需要重绘时触发
/// </summary>
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
e.Graphics.FillRectangle(SystemBrushes.Control, e.ClipRectangle); //填充矩形
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias; //清除锯齿
//获取左面图标的区域
Rectangle boxrect = new Rectangle(e.ClipRectangle.X, e.ClipRectangle.Y,
SystemInformation.SmallIconSize.Width, e.ClipRectangle.Height);
//获取绘制的文本的区域
Rectangle strrect = new Rectangle(e.ClipRectangle.X + SystemInformation.SmallIconSize.Width,
e.ClipRectangle.Y, e.ClipRectangle.Width + 5 - SystemInformation.SmallIconSize.Width,
e.ClipRectangle.Height);
if (FontAspect) //判断字体的读取方式
{
boxrect.X = e.ClipRectangle.X + e.ClipRectangle.Width - SystemInformation.SmallIconSize.Width; //设置椭圆的位置
strrect.X = e.ClipRectangle.X; //设置字体位置
}
Point MousePos = this.PointToClient(Control.MousePosition); //获取鼠标的位置
bool Above = e.ClipRectangle.Contains(MousePos); //获取鼠标是否在当前控件上
DrawBox(e.Graphics, boxrect, Above); //绘制单选图案
DrawText(e.Graphics, strrect); //绘制文字
if (!Enabled)
e.Graphics.FillRectangle(new SolidBrush(Color.FromArgb(127, SystemColors.Control)), e.ClipRectangle);
}
/// <summary>
/// 鼠标移入控件的可见区域时触发
/// </summary>
protected override void OnMouseEnter(System.EventArgs e)
{
base.OnMouseEnter(e);
this.Invalidate();
}
/// <summary>
/// 鼠标移出控件的可见区域时触发
/// </summary>
protected override void OnMouseLeave(System.EventArgs e)
{
base.OnMouseLeave(e);
this.Invalidate();
}
/// <summary>
/// RightToLeft属性值更改时发生
/// </summary>
protected override void OnRightToLeftChanged(System.EventArgs e)
{
base.OnRightToLeftChanged(e);
FontAspect = getAspect();
this.Invalidate();
}
#endregion
#region 方法
/// <summary>
/// 绘制单选控件的图案
/// </summary>
/// <param g="Graphics">封装一个绘图的类对象</param>
/// <param rect="Rectangle">单选图案的绘制区域</param>
/// <param Above="bool">断判鼠标是否在控件上方</param>
private void DrawBox(Graphics g, Rectangle rect, bool Above)
{
//设置外椭圆的渐变色
int opacity = Measurement;
Periphery_br = new LinearGradientBrush(rect, Color.FromArgb(opacity / 2, PeripheryColor),
Color.FromArgb(opacity, PeripheryColor), LinearGradientMode.ForwardDiagonal);
//设置中间椭圆形选中时的渐变色
opacity = (int) (.4f * opacity + .5f);
Central_br = new LinearGradientBrush(rect, Color.FromArgb(opacity / 10, CentralColor),
Color.FromArgb(opacity, CentralColor), LinearGradientMode.ForwardDiagonal);
//设置中间椭圆形无操作时的渐变色
opacity = (int) (.4f * opacity + .5f);
NoCentral_br = new LinearGradientBrush(rect, Color.FromArgb(opacity / 10, NoCentralColor),
Color.FromArgb(opacity, NoCentralColor), LinearGradientMode.ForwardDiagonal);
int size = this.Font.Height; //获取字体的高度
//获取外椭圆的区域
Rectangle box = new Rectangle(rect.X + ((rect.Width - size) / 2), rect.Y + ((rect.Height - size) / 2),
size - 2, size - 2);
Rectangle glyph = new Rectangle(box.X + 3, box.Y + 3, box.Width - 6, box.Height - 6); //设置内圆的绘制区域
Rectangle right = new Rectangle(box.X, box.Y - 1, box.Width + 2, box.Height + 2);
g.FillEllipse(new SolidBrush(SystemColors.Window), box); //以白色填充单选图案
if (this.CheckState != CheckState.Unchecked) //如果是选中状态
{
base.ForeColor = Color.DarkBlue;
ControlPaint.DrawMenuGlyph(g, right, MenuGlyph.Checkmark, this.StippleColor, Color.White); //绘制对号
g.DrawRectangle(new Pen(new SolidBrush(SystemColors.Control), (float) (3)), box); //绘制外椭圆
}
if (this.CheckState == CheckState.Indeterminate)
g.FillRectangle(new SolidBrush(Color.FromArgb(127, SystemColors.Control)), right);
if (Above && this.Enabled) //如果鼠标移入该控件
{
g.DrawRectangle(new Pen(Central_br, 2),
new Rectangle(box.X + 2, box.Y + 2, box.Width - 4, box.Height - 4)); //绘制中心椭圆
}
else
{
g.DrawRectangle(new Pen(NoCentral_br, 2),
new Rectangle(box.X + 2, box.Y + 2, box.Width - 4, box.Height - 4)); //绘制中心椭圆
}
g.DrawRectangle(new Pen(Periphery_br, (float) (1.5)), box); //绘制外椭圆
}
/// <summary>
/// 绘制文本
/// </summary>
/// <param g="Graphics">封装一个绘图的类对象</param>
/// <param rect="Rectangle">绘制文本的区域</param>
private void DrawText(Graphics g, Rectangle rect)
{
StringFormat tem_StringF = new StringFormat();
tem_StringF.Alignment = StringAlignment.Near;
tem_StringF.LineAlignment = StringAlignment.Center; //文本居中对齐
if (FontAspect)
tem_StringF.FormatFlags = StringFormatFlags.DirectionRightToLeft; //按从左到右的顺序显示文本
//g.DrawString(this.Text, this.Font, SystemBrushes.ControlText, rect, tem_StringF);//绘制文本
if (!FontAspect)
g.DrawString(this.Text, this.Font, SystemBrushes.ControlText, rect, tem_StringF); //绘制文本
else
{
rect.X = rect.X - SystemInformation.SmallIconSize.Width / 2 + 2;
g.DrawString(this.Text, this.Font, SystemBrushes.ControlText, rect, tem_StringF);
}
}
/// <summary>
/// 获取文本的读取方向
/// </summary>
/// <return>布尔型</return>
private bool getAspect()
{
bool tem_Aspect = SystemInformation.RightAlignedMenus;
if (this.RightToLeft == RightToLeft.Yes) //从右到左进行读取
tem_Aspect = true;
if (this.RightToLeft == RightToLeft.No) //从左到右进行读取
tem_Aspect = false;
return tem_Aspect;
}
#endregion
}
