C#中Winform 實(shí)現(xiàn)Ajax效果自定義按鈕
更新時(shí)間：2017年12月19日 08:53:56 作者：數(shù)據(jù)酷軟件
這篇文章主要介紹了C#中Winform 實(shí)現(xiàn)Ajax效果自定義按鈕的相關(guān)資料,需要的朋友可以參考下
技術(shù)看點(diǎn)
- WinForm自定義控件的使用
- 自定義控件gif動(dòng)畫(huà)的播放
需求及效果
又來(lái)一波 C# GDI自定義控件show 。這個(gè)控件已經(jīng)使用幾年了，最近找出來(lái)重構(gòu)一下。原來(lái)是沒(méi)有邊框的，那么導(dǎo)致導(dǎo)航的功能不是很突出。本來(lái)想加個(gè)效果：在執(zhí)行單擊時(shí)顯示Loading動(dòng)畫(huà)，在執(zhí)行完單擊事件后恢復(fù)原樣。這就是網(wǎng)頁(yè)里見(jiàn)到的局部刷新，Ajax常用的場(chǎng)景。需求來(lái)自幾年前一個(gè)智能儲(chǔ)物柜項(xiàng)目，人機(jī)界面有個(gè)美工設(shè)計(jì)好的效果圖，為了省事和通用，需要一個(gè)透明的按鈕來(lái)實(shí)現(xiàn)導(dǎo)航的任務(wù)。就是控件只是設(shè)計(jì)時(shí)可見(jiàn)，運(yùn)行時(shí)不可見(jiàn)。
關(guān)鍵點(diǎn)說(shuō)明
1）、GraphicsPath實(shí)現(xiàn)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(diǎn)就是畫(huà)幾段弧線和矩形連接起來(lái)。透明就是用了Color.FromArgb加上透明度，然后填充GraphicsPath形成透明區(qū)域。
g.FillPath(new SolidBrush(Color.FromArgb(153, BackColor)), path);
2)、單窗體應(yīng)用如何模塊化
窗體只有一個(gè)，但操作界面好多個(gè)，由于是無(wú)人值守的應(yīng)用。那么老是切換窗體操作是非常不方便的。工作區(qū)域是一個(gè)容器Panel,把每個(gè)操作界面定義成一個(gè)Panel作為只容器。
public partial class DepositBizPanel : UserControl
{
private BackgroundStyle backgroundStyle = BackgroundStyle.Green;
/// <summary>
/// 主題風(fēng)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(jī)操作界面例子
3)、控件播放gif動(dòng)畫(huà)
private void BeginAnimate()
{
if (m_AnimateImage == null)
return;
if (ImageAnimator.CanAnimate(m_AnimateImage))
{
//當(dāng)gif動(dòng)畫(huà)每隔一定時(shí)間后，都會(huì)變換一幀，那么就會(huì)觸發(fā)一事件，
//該方法就是將當(dāng)前image每變換一幀時(shí)，都會(huì)調(diào)用當(dāng)前這個(gè)委托所關(guān)聯(lián)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(dāng)前gif動(dòng)畫(huà)的下一步需要渲染的幀，當(dāng)下一步任何對(duì)當(dāng)前gif動(dòng)畫(huà)的操作都是對(duì)該幀進(jìn)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(zhí)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(gè)問(wèn)題：在關(guān)閉了MemoryStream之后，會(huì)出現(xiàn)“gdi+ 中發(fā)生一般性錯(cuò)誤”，于是改為不關(guān)閉了，控件銷毀之后占用的內(nèi)存就會(huì)釋放吧。這是一點(diǎn)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(diǎn)是否畫(huà)邊框
/// </summary>
public bool IfDrawBorderWhenLostFocse
{
get
{
return ifDrawBorderWhenLostFocse;
}
set
{
ifDrawBorderWhenLostFocse = value;
Invalidate();
}
}
/// <summary>
/// 是否處于激活狀態(tài)(焦點(diǎn))
/// </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(huà)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(duì)齊
f.LineAlignment = StringAlignment.Center; // 垂直居中對(duì)齊
f.FormatFlags = StringFormatFlags.NoWrap;// 設(shè)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(shí)現(xiàn)了網(wǎng)頁(yè)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(diǎn)是否畫(huà)邊框
/// </summary>
public bool IfDrawBorderWhenLostFocse
{
get
{
return ifDrawBorderWhenLostFocse;
}
set
{
ifDrawBorderWhenLostFocse = value;
Invalidate();
}
}
/// <summary>
/// 是否處于激活狀態(tài)(焦點(diǎn))
/// </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(huà)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(duì)齊
f.LineAlignment = StringAlignment.Center; // 垂直居中對(duì)齊
f.FormatFlags = StringFormatFlags.NoWrap;// 設(shè)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(dāng)gif動(dòng)畫(huà)每隔一定時(shí)間后，都會(huì)變換一幀，那么就會(huì)觸發(fā)一事件，
//該方法就是將當(dāng)前image每變換一幀時(shí)，都會(huì)調(diào)用當(dāng)前這個(gè)委托所關(guān)聯(lián)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(dāng)前gif動(dòng)畫(huà)的下一步需要渲染的幀，當(dāng)下一步任何對(duì)當(dāng)前gif動(dòng)畫(huà)的操作都是對(duì)該幀進(jìn)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(zhí)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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