C#中Winform 實現Ajax效果自定義按鈕

2020-01-24 00:22:21

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技術看點

WinForm自定義控件的使用
自定義控件gif動畫的播放

需求及效果

又來一波 C# GDI自定義控件show 。這個控件已經使用幾年了，最近找出來重構一下。原來是沒有邊框的，那么導致導航的功能不是很突出。本來想加個效果：在執行單擊時顯示Loading動畫，在執行完單擊事件后恢復原樣。這就是網頁里見到的局部刷新，Ajax常用的場景。需求來自幾年前一個智能儲物柜項目，人機界面有個美工設計好的效果圖，為了省事和通用，需要一個透明的按鈕來實現導航的任務。就是控件只是設計時可見，運行時不可見。

關鍵點說明

1）、GraphicsPath實現矩形的圓角羽化處理

 using (GraphicsPath path = new GraphicsPath())   {    #region 羽化，圓角處理    path.StartFigure();    path.AddArc(new Rectangle(new Point(rect.X, rect.Y), new Size(2 * Radius, 2 * Radius)), 180, 90);    path.AddLine(new Point(rect.X + Radius, rect.Y), new Point(rect.Right - Radius, rect.Y));    path.AddArc(new Rectangle(new Point(rect.Right - 2 * Radius, rect.Y), new Size(2 * Radius, 2 * Radius)), 270, 90);    path.AddLine(new Point(rect.Right, rect.Y + Radius), new Point(rect.Right, rect.Bottom - Radius));    path.AddArc(new Rectangle(new Point(rect.Right - 2 * Radius, rect.Bottom - 2 * Radius), new Size(2 * Radius, 2 * Radius)), 0, 90);    path.AddLine(new Point(rect.Right - Radius, rect.Bottom), new Point(rect.X + Radius, rect.Bottom));    path.AddArc(new Rectangle(new Point(rect.X, rect.Bottom - 2 * Radius), new Size(2 * Radius, 2 * Radius)), 90, 90);    path.AddLine(new Point(rect.X, rect.Bottom - Radius), new Point(rect.X, rect.Y + Radius));    path.CloseFigure();    #endregion

要點就是畫幾段弧線和矩形連接起來。透明就是用了Color.FromArgb加上透明度，然后填充GraphicsPath形成透明區域。

g.FillPath(new SolidBrush(Color.FromArgb(153, BackColor)), path);

2)、單窗體應用如何模塊化

窗體只有一個，但操作界面好多個，由于是無人值守的應用。那么老是切換窗體操作是非常不方便的。工作區域是一個容器Panel,把每個操作界面定義成一個Panel作為只容器。

 public partial class DepositBizPanel : UserControl {  private BackgroundStyle backgroundStyle = BackgroundStyle.Green;  /// <summary>  /// 主題風格  /// </summary>  public BackgroundStyle BackgroundStyle  {   get { return backgroundStyle; }   set   {    backgroundStyle = value;    switch (value)    {     case GreenlandExpressBox.BackgroundStyle.Blue:      BackgroundImage = Properties.Resources.jbblue;      break;     case GreenlandExpressBox.BackgroundStyle.Orange:      BackgroundImage = Properties.Resources.jborange;      break;     case GreenlandExpressBox.BackgroundStyle.Green:      BackgroundImage = Properties.Resources.jbgreen;      break;    }    Invalidate();   }  }  public Panel ParentPanel  {   get;   set;  }  public Bitmap QR_Barcode  {   get { return (Bitmap)pbxBarcode.Image; }   set { pbxBarcode.Image = value; }  }  public DialogResult PanelDiagResult  {   get;   set;  }  public DepositBizPanel(Panel parent, Bitmap barcode, BackgroundStyle style)  {   InitializeComponent();   DoubleBuffered = true;   ParentPanel = parent;   QR_Barcode = barcode;   BackgroundStyle = style;  }    private void btnback_Click(object sender, EventArgs e)  {   foreach (Control panel in ParentPanel.Controls)   {    if (panel is DepositBizPanel)    {     ParentPanel.Controls.Remove(panel);     PanelDiagResult = DialogResult.Cancel;     break;    }   }  }  private void btnprocessnext_Click(object sender, EventArgs e)  {   foreach (Control panel in ParentPanel.Controls)   {    if (panel is DepositBizPanel)    {     ParentPanel.Controls.Remove(panel);     PanelDiagResult = DialogResult.OK;     break;    }   }  } }

人機操作界面例子

3)、控件播放gif動畫

private void BeginAnimate()  {   if (m_AnimateImage == null)    return;   if (ImageAnimator.CanAnimate(m_AnimateImage))   {    //當gif動畫每隔一定時間后，都會變換一幀，那么就會觸發一事件，     //該方法就是將當前image每變換一幀時，都會調用當前這個委托所關聯的方法。     ImageAnimator.Animate(m_AnimateImage, m_evthdlAnimator);   }  }  private void StopAnimate()  {   if (m_AnimateImage == null)    return;   try   {    if (ImageAnimator.CanAnimate(m_AnimateImage))    {     ImageAnimator.StopAnimate(m_AnimateImage, m_evthdlAnimator);    }   }   finally   {    m_IsExecuted = false;   }  }  private void UpdateImage()  {   if (m_AnimateImage == null)    return;   if (ImageAnimator.CanAnimate(m_AnimateImage))   {    //獲得當前gif動畫的下一步需要渲染的幀，當下一步任何對當前gif動畫的操作都是對該幀進行操作)     ImageAnimator.UpdateFrames(m_AnimateImage);   }  }  private void OnImageAnimate(Object sender, EventArgs e)  {   Invalidate();  }  protected override void OnLoad(EventArgs e)  {   base.OnLoad(e);   string s1 = @"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";   byte[] buffer = Convert.FromBase64String(s1);   MemoryStream ms = new MemoryStream(buffer);   var srcImg = Image.FromStream(ms);   m_AnimateImage = srcImg;  }

OnLoad執行的操作是從base64字符串里反序列化圖片，就是效果圖中的Loading的gif圖片。這里遇到一個問題：在關閉了MemoryStream之后，會出現“gdi+ 中發生一般性錯誤”，于是改為不關閉了，控件銷毀之后占用的內存就會釋放吧。這是一點隱憂，如果有好的辦法，希望留言告知。

透明按鈕自定義控件全部代碼

第一版自定義按鈕：

/// <summary> /// Cool透明自定義按鈕 /// </summary> public partial class CoolTransparentButton : UserControl {  private Size iconSize = new Size(32, 32);  public Size IconSize  {   get   {    return iconSize;   }   set   {    iconSize = value;    Invalidate();   }  }  private string _ButtonText;  public string ButtonText  {   get { return _ButtonText; }   set   {    _ButtonText = value;    Invalidate();   }  }  protected Image _IconImage;  public Image IconImage  {   get   {    return _IconImage;   }   set   {    _IconImage = value;    Invalidate();   }  }  private bool _FocseActived = false;  private Color _BorderColor = Color.White;  public Color BorderColor  {   get   {    return _BorderColor;   }   set   {    _BorderColor = value;    Invalidate();   }  }  private int _Radius = 12;  public int Radius  {   get   {    return _Radius;   }   set   {    _Radius = value;    Invalidate();   }  }  private bool ifDrawBorderWhenLostFocse = true;  /// <summary>  /// 失去焦點是否畫邊框  /// </summary>  public bool IfDrawBorderWhenLostFocse  {   get   {    return ifDrawBorderWhenLostFocse;   }   set   {    ifDrawBorderWhenLostFocse = value;    Invalidate();   }  }  /// <summary>  /// 是否處于激活狀態(焦點)  /// </summary>  public bool FocseActived  {   get { return _FocseActived; }   set   {    _FocseActived = value;    Invalidate();   }  }     public CoolTransparentButton()  {   DoubleBuffered = true;   BackColor = Color.Transparent;   SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw, true);   SetStyle(ControlStyles.Opaque, false);   UpdateStyles();   }  protected override void OnPaint(PaintEventArgs e)  {   var rect = ClientRectangle;   rect.Inflate(-1, -1);   Graphics g = e.Graphics;   g.SmoothingMode = SmoothingMode.HighQuality;   using (GraphicsPath path = new GraphicsPath())   {    #region 羽化，圓角處理    path.StartFigure();    path.AddArc(new Rectangle(new Point(rect.X, rect.Y), new Size(2 * Radius, 2 * Radius)), 180, 90);    path.AddLine(new Point(rect.X + Radius, rect.Y), new Point(rect.Right - Radius, rect.Y));    path.AddArc(new Rectangle(new Point(rect.Right - 2 * Radius, rect.Y), new Size(2 * Radius, 2 * Radius)), 270, 90);    path.AddLine(new Point(rect.Right, rect.Y + Radius), new Point(rect.Right, rect.Bottom - Radius));    path.AddArc(new Rectangle(new Point(rect.Right - 2 * Radius, rect.Bottom - 2 * Radius), new Size(2 * Radius, 2 * Radius)), 0, 90);    path.AddLine(new Point(rect.Right - Radius, rect.Bottom), new Point(rect.X + Radius, rect.Bottom));    path.AddArc(new Rectangle(new Point(rect.X, rect.Bottom - 2 * Radius), new Size(2 * Radius, 2 * Radius)), 90, 90);    path.AddLine(new Point(rect.X, rect.Bottom - Radius), new Point(rect.X, rect.Y + Radius));    path.CloseFigure();    #endregion     if (!FocseActived)    {     if (ifDrawBorderWhenLostFocse)      g.DrawPath(new Pen(Color.Gray, 1), path);     g.FillPath(new SolidBrush(Color.FromArgb(66, BackColor)), path);    }    else    {     g.DrawPath(new Pen(BorderColor, 1), path);     rect.Inflate(-1, -1);     g.FillPath(new SolidBrush(Color.FromArgb(153, BackColor)), path);    }    #region 畫文本    g.SmoothingMode = SmoothingMode.AntiAlias;    if (IconImage != null)    {     Rectangle rc = new Rectangle((Width - 32) / 2, 16, IconSize.Width, IconSize.Height);     g.DrawImage(IconImage, rc);    }    if (!string.IsNullOrEmpty(ButtonText))    {     using (StringFormat f = new StringFormat())     {      Rectangle rectTxt = new Rectangle(0, (Height - 18) / 2, Width, 36);      f.Alignment = StringAlignment.Center;// 水平居中對齊       f.LineAlignment = StringAlignment.Center; // 垂直居中對齊       f.FormatFlags = StringFormatFlags.NoWrap;// 設置為單行文本       SolidBrush fb = new SolidBrush(this.ForeColor); // 繪制文本       e.Graphics.DrawString(ButtonText, new Font("微軟雅黑", 16F, FontStyle.Bold), fb, rectTxt, f);     }    }    #endregion    }  }  protected override void OnMouseHover(EventArgs e)  {   FocseActived = true;  }  protected override void OnMouseLeave(EventArgs e)  {   FocseActived = false;  }  protected override void OnEnter(EventArgs e)  {   FocseActived = true;  }  protected override void OnLeave(EventArgs e)  {   FocseActived = false;  }  }

第二版自定義按鈕：

/// <summary> /// 自定義透明自定義按鈕，模仿實現了網頁元素的Ajax效果 /// </summary> public partial class AjaxTransparentButton : UserControl {  private Size iconSize = new Size(32, 32);  public Size IconSize  {   get   {    return iconSize;   }   set   {    iconSize = value;    Invalidate();   }  }  private string _ButtonText;  public string ButtonText  {   get { return _ButtonText; }   set   {    _ButtonText = value;    Invalidate();   }  }  protected Image _IconImage;  public Image IconImage  {   get   {    return _IconImage;   }   set   {    _IconImage = value;    Invalidate();   }  }  private bool _FocseActived = false;  private Color _BorderColor = Color.White;  public Color BorderColor  {   get   {    return _BorderColor;   }   set   {    _BorderColor = value;    Invalidate();   }  }  private int _Radius = 12;  public int Radius  {   get   {    return _Radius;   }   set   {    _Radius = value;    Invalidate();   }  }  private bool ifDrawBorderWhenLostFocse = true;  /// <summary>  /// 失去焦點是否畫邊框  /// </summary>  public bool IfDrawBorderWhenLostFocse  {   get   {    return ifDrawBorderWhenLostFocse;   }   set   {    ifDrawBorderWhenLostFocse = value;    Invalidate();   }  }  /// <summary>  /// 是否處于激活狀態(焦點)  /// </summary>  public bool FocseActived  {   get { return _FocseActived; }   set   {    _FocseActived = value;    Invalidate();   }  }  private Image m_AnimateImage = null;  private EventHandler m_evthdlAnimator = null;  private bool m_IsExecuted = false;  public AjaxTransparentButton()  {   BackColor = Color.Transparent;   SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw | ControlStyles.UserPaint, true);   SetStyle(ControlStyles.Opaque, false);   UpdateStyles();   m_evthdlAnimator = new EventHandler(OnImageAnimate);  }  protected override void OnPaint(PaintEventArgs e)  {   var rect = ClientRectangle;   rect.Inflate(-1, -1);   Graphics g = e.Graphics;   g.SmoothingMode = SmoothingMode.HighQuality;   using (GraphicsPath path = new GraphicsPath())   {    #region 羽化，圓角處理    path.StartFigure();    path.AddArc(new Rectangle(new Point(rect.X, rect.Y), new Size(2 * Radius, 2 * Radius)), 180, 90);    path.AddLine(new Point(rect.X + Radius, rect.Y), new Point(rect.Right - Radius, rect.Y));    path.AddArc(new Rectangle(new Point(rect.Right - 2 * Radius, rect.Y), new Size(2 * Radius, 2 * Radius)), 270, 90);    path.AddLine(new Point(rect.Right, rect.Y + Radius), new Point(rect.Right, rect.Bottom - Radius));    path.AddArc(new Rectangle(new Point(rect.Right - 2 * Radius, rect.Bottom - 2 * Radius), new Size(2 * Radius, 2 * Radius)), 0, 90);    path.AddLine(new Point(rect.Right - Radius, rect.Bottom), new Point(rect.X + Radius, rect.Bottom));    path.AddArc(new Rectangle(new Point(rect.X, rect.Bottom - 2 * Radius), new Size(2 * Radius, 2 * Radius)), 90, 90);    path.AddLine(new Point(rect.X, rect.Bottom - Radius), new Point(rect.X, rect.Y + Radius));    path.CloseFigure();    #endregion     if (!FocseActived)    {     if (ifDrawBorderWhenLostFocse)      g.DrawPath(new Pen(Color.Gray, 1), path);     g.FillPath(new SolidBrush(Color.FromArgb(66, BackColor)), path);    }    else    {     g.DrawPath(new Pen(BorderColor, 1), path);     rect.Inflate(-1, -1);     g.FillPath(new SolidBrush(Color.FromArgb(153, BackColor)), path);    }    #region 畫文本    g.SmoothingMode = SmoothingMode.AntiAlias;    if (IconImage != null)    {     Rectangle rc = new Rectangle((Width - 32) / 2, 16, IconSize.Width, IconSize.Height);     g.DrawImage(IconImage, rc);    }    if (!string.IsNullOrEmpty(ButtonText))    {     using (StringFormat f = new StringFormat())     {      Rectangle rectTxt = new Rectangle(0, (Height - 18) / 2, Width, 36);      f.Alignment = StringAlignment.Center;// 水平居中對齊       f.LineAlignment = StringAlignment.Center; // 垂直居中對齊       f.FormatFlags = StringFormatFlags.NoWrap;// 設置為單行文本       SolidBrush fb = new SolidBrush(this.ForeColor); // 繪制文本       e.Graphics.DrawString(ButtonText, new Font("微軟雅黑", 16F, FontStyle.Bold), fb, rectTxt, f);     }    }    if (m_AnimateImage != null)    {     Rectangle rectGif = new Rectangle((Width - 24) / 2, (Height - 16) / 2 - 8, 32, 32);     if (m_IsExecuted)     {      UpdateImage();      e.Graphics.DrawImage(m_AnimateImage, rectGif);     }     else     {      e.Graphics.FillRectangle(new SolidBrush(Color.Transparent), rectGif);     }    }    #endregion    }  }  protected override void OnMouseHover(EventArgs e)  {   FocseActived = true;  }  protected override void OnMouseLeave(EventArgs e)  {   FocseActived = false;  }  protected override void OnEnter(EventArgs e)  {   FocseActived = true;  }  protected override void OnLeave(EventArgs e)  {   FocseActived = false;  }  private void BeginAnimate()  {   if (m_AnimateImage == null)    return;   if (ImageAnimator.CanAnimate(m_AnimateImage))   {    //當gif動畫每隔一定時間后，都會變換一幀，那么就會觸發一事件，     //該方法就是將當前image每變換一幀時，都會調用當前這個委托所關聯的方法。     ImageAnimator.Animate(m_AnimateImage, m_evthdlAnimator);   }  }  private void StopAnimate()  {   if (m_AnimateImage == null)    return;   try   {    if (ImageAnimator.CanAnimate(m_AnimateImage))    {     ImageAnimator.StopAnimate(m_AnimateImage, m_evthdlAnimator);    }   }   finally   {    m_IsExecuted = false;   }  }  private void UpdateImage()  {   if (m_AnimateImage == null)    return;   if (ImageAnimator.CanAnimate(m_AnimateImage))   {    //獲得當前gif動畫的下一步需要渲染的幀，當下一步任何對當前gif動畫的操作都是對該幀進行操作)     ImageAnimator.UpdateFrames(m_AnimateImage);   }  }  private void OnImageAnimate(Object sender, EventArgs e)  {   Invalidate();  }  protected override void OnLoad(EventArgs e)  {   base.OnLoad(e);   string s1 = @"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";   byte[] buffer = Convert.FromBase64String(s1);   MemoryStream ms = new MemoryStream(buffer);   var srcImg = Image.FromStream(ms);   m_AnimateImage = srcImg;  }  protected override void OnClick(EventArgs e)  {   if (m_IsExecuted)    return;   Action clickTask = () =>   {    m_IsExecuted = true;    BeginAnimate();    base.OnClick(e);    Invalidate();   };   //異步執行單擊事件   clickTask.BeginInvoke((result) =>   {    clickTask.EndInvoke(result);    m_IsExecuted = false;    StopAnimate();   }, null);  }  protected override void Dispose(bool disposing)  {   base.Dispose(disposing);   if (m_AnimateImage != null)   {    try    {     StopAnimate();    }    finally    {     m_AnimateImage.Dispose();     m_evthdlAnimator = null;    }   }  }  protected override void OnKeyDown(KeyEventArgs e)  {   base.OnKeyDown(e);   if (e.KeyCode == Keys.Enter)   {    OnClick(e);   }  } }

注釋不是很多，源碼如有需要拿走不謝

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