WinForm自界说控件的使用
自界说控件gif动画的播放
需求及效果又来一波 C# GDI自界说控件show 。这个控件已经使用几年了，，比来找出来重构一下。本来是没有边框的，那么导致导航的成果不是很突出。原来想加个效果：在执行单击时显示Loading动画，在执行完单击事件后恢回复复兴样。这就是网页里见到的局部刷新，Ajax常用的场景。需求来自几年前一个智能储物柜项目，人机界面有个美工设计好的效果图，为了省事和通用，需要一个透明的按钮来实现导航的任务。就是控件只是设计时可见，运行时不偏见。
1）、GraphicsPath实现矩形的圆角成仙措置惩罚惩罚
using (GraphicsPath path = new GraphicsPath()) { #region 成仙，圆角措置惩罚惩罚 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
要点就是画几段弧线和矩形连接起来。透明就是用了Color.FromArgb加上透明度，然后填充GraphicsPath形成透明区域。
g.FillPath(new SolidBrush(Color.FromArgb(153, BackColor)), path);
2)、单窗体应用如何模块化
窗体只有一个，但操纵界面好多个，由于是无人值守的应用。那么老是切换窗体操纵长短常未便利的。事情区域是一个容器Panel,把每个操纵界面界说成一个Panel作为只容器。
public partial class DepositBizPanel : UserControl { private BackgroundStyle backgroundStyle = BackgroundStyle.Green; /// <summary> /// 主题气势派头 /// </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; } } } }
人机操纵界面例子3)、控件播放gif动画