540 lines
15 KiB
C#
540 lines
15 KiB
C#
/******************************************************************************
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* SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
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* CopyRight (C) 2012-2021 ShenYongHua(沈永华).
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* QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
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*
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* Blog: https://www.cnblogs.com/yhuse
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* Gitee: https://gitee.com/yhuse/SunnyUI
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* GitHub: https://github.com/yhuse/SunnyUI
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*
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* SunnyUI.dll can be used for free under the GPL-3.0 license.
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* If you use this code, please keep this note.
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* 如果您使用此代码，请保留此说明。
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******************************************************************************
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* 文件名称: UIEdit.cs
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* 文件说明: 文本输入框
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* 当前版本: V3.0
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* 创建日期: 2020-01-01
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*
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* 2020-01-01: V2.2.0 增加文件说明
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******************************************************************************/
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using System;
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using System.ComponentModel;
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using System.Windows.Forms;
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namespace Sunny.UI
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{
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[ToolboxItem(false)]
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public class UIEdit : TextBox
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{
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private bool canEmpty;
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private int decLength = 2;
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private bool hasMaxValue;
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private bool hasMinValue;
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private string mask = "0.00";
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private double maxValue = int.MaxValue;
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private double minValue = int.MinValue;
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private UITextBox.UIEditType _uiEditType = UITextBox.UIEditType.String;
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public UIEdit()
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{
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//设置为单选边框
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BorderStyle = BorderStyle.FixedSingle;
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base.Font = UIFontColor.Font;
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base.ForeColor = UIFontColor.Primary;
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Width = 150;
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base.MaxLength = 32767;
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}
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private string watermark;
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[DefaultValue(null)]
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public string Watermark
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{
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get => watermark;
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set
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{
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watermark = value;
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Win32.User.SendMessage(Handle, 0x1501, (int)IntPtr.Zero, value);
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}
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}
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protected override void OnKeyDown(KeyEventArgs e)
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{
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if (!Multiline)
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{
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if (e.KeyData == Keys.Enter || e.KeyData == Keys.Down)
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{
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if (e.KeyData == Keys.Enter)
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{
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EnterKeyPress?.Invoke(this, e);
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}
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if (EnterAsTab)
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{
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SendKeys.Send("{tab}");
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}
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e.Handled = true;
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}
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if (e.KeyData == Keys.Up)
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{
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if (EnterAsTab)
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{
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SendKeys.Send("+{TAB}");
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}
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e.Handled = true;
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}
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}
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if (e.Control && e.KeyCode == Keys.A)
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{
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SelectAll();
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e.SuppressKeyPress = true;
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}
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if (e.Control && e.KeyCode == Keys.C)
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{
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Copy();
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e.SuppressKeyPress = true;
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}
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if (e.Control && e.KeyCode == Keys.V)
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{
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Paste();
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e.SuppressKeyPress = true;
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}
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if (e.Control && e.KeyCode == Keys.X)
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{
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Cut();
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e.SuppressKeyPress = true;
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}
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base.OnKeyDown(e);
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}
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public bool EnterAsTab { get; set; }
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public event EventHandler EnterKeyPress;
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[DefaultValue(false), Category("SunnyUI"), Description("整型、浮点型可以为空")]
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public bool CanEmpty
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{
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get => canEmpty;
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set
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{
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if (canEmpty != value)
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{
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canEmpty = value;
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Invalidate();
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}
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}
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}
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[
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DefaultValue(UITextBox.UIEditType.String),
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Category("SunnyUI"),
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Description("设置编辑框输入内容属性")
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]
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public UITextBox.UIEditType Type
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{
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get => _uiEditType;
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set
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{
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if (_uiEditType == value) return;
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_uiEditType = value;
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switch (_uiEditType)
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{
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case UITextBox.UIEditType.Double:
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if (!CanEmpty)
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if (!Text.IsDouble())
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Text = mask;
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break;
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case UITextBox.UIEditType.Integer:
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if (!CanEmpty)
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if (!Text.IsInt())
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Text = @"0";
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break;
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case UITextBox.UIEditType.String:
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Text = "";
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break;
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}
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CheckMaxMin();
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if (DesignMode)
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Invalidate();
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}
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}
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[DefaultValue(2)]
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public int DecLength
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{
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get => decLength;
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set
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{
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if (decLength != value)
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{
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decLength = value;
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if (decLength < 0)
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{
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decLength = 0;
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}
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if (_uiEditType == UITextBox.UIEditType.Double)
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{
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mask = DecimalToMask(decLength);
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Text = mask;
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Invalidate();
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}
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}
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}
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}
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[DefaultValue(false)]
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public bool HasMaxValue
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{
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get => hasMaxValue;
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set
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{
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if (hasMaxValue != value)
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{
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hasMaxValue = value;
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CheckMaxMin();
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Invalidate();
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}
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}
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}
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[DefaultValue(false)]
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public bool HasMinValue
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{
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get => hasMinValue;
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set
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{
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if (hasMinValue != value)
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{
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hasMinValue = value;
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CheckMaxMin();
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Invalidate();
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}
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}
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}
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[DefaultValue(0)]
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public double DoubleValue
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{
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get
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{
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if (Text == "" && CanEmpty) return 0;
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return Text.ToDouble();
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}
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set
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{
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CheckMaxMin();
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Text = value.ToString("f" + decLength);
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}
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}
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[DefaultValue(0)]
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public int IntValue
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{
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get
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{
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if (Text == "" && CanEmpty) return 0;
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return Text.ToInt();
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}
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set
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{
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CheckMaxMin();
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Text = value.ToString();
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}
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}
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[DefaultValue(int.MaxValue)]
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public double MaxValue
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{
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get => maxValue;
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set
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{
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maxValue = value;
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if (maxValue < minValue)
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minValue = maxValue;
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CheckMaxMin();
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Invalidate();
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}
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}
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[DefaultValue(int.MinValue)]
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public double MinValue
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{
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get => minValue;
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set
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{
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minValue = value;
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if (minValue > maxValue)
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maxValue = minValue;
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CheckMaxMin();
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Invalidate();
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}
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}
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private string DecimalToMask(int iDecimal)
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{
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if (iDecimal == 0)
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return "0";
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var str = "0.";
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for (int i = 1; i <= iDecimal; i++)
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str = str + "0";
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return str;
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}
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private int SubCharCount(string str, char subChar)
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{
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string[] IDList = str.Split(subChar);
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return IDList.Length - 1;
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}
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private bool StringIndexIsChar(string str, int idx, char inChar)
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{
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if (str == "")
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return false;
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if (idx >= str.Length)
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return false;
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char[] cl = str.ToCharArray();
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return cl[idx] == inChar;
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}
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private bool IsValidChar(string str, char KeyChar, int pos)
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{
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bool b;
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if (_uiEditType == UITextBox.UIEditType.Integer)
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{
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b = char.IsDigit(KeyChar);
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if (b)
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{
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if ((str.IndexOf('+') >= 0) | (str.IndexOf('-') >= 0))
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{
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if ((pos == 1) & (SelectionLength > 0))
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return true;
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b = pos > 1;
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}
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return b;
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}
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b = KeyChar.Equals('+');
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if (b)
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{
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if (str == "") return true;
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if (pos != 1) return false;
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b = ((str.IndexOf('+') == -1) & (str.IndexOf('-') == -1)) | (SelectionLength > 0);
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return b;
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}
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b = KeyChar.Equals('-');
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if (b)
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{
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if (str == "") return true;
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if (pos != 1) return false;
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b = ((str.IndexOf('+') == -1) & (str.IndexOf('-') == -1)) | (SelectionLength > 0);
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return b;
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}
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return false;
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}
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if (_uiEditType == UITextBox.UIEditType.Double)
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{
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b = char.IsDigit(KeyChar);
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if (b)
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{
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if ((str.IndexOf('+') >= 0) | (str.IndexOf('-') >= 0))
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{
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if ((pos == 1) & (SelectionLength > 0))
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return true;
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b = pos > 1;
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}
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return b;
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}
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b = KeyChar.Equals('.');
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if (b)
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{
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if (str == "") return true;
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if (SubCharCount(str, KeyChar) != 0) return false;
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if ((str.IndexOf('+') >= 0) | (str.IndexOf('-') >= 0))
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{
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if ((pos == 1) & (SelectionLength > 0))
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return true;
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b = pos > 1;
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}
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return b;
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}
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b = KeyChar.Equals('+');
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if (b)
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{
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if (str == "") return true;
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if (pos != 1) return false;
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b = ((str.IndexOf('+') == -1) & (str.IndexOf('-') == -1)) | (SelectionLength > 0);
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return b;
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}
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b = KeyChar.Equals('-');
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if (b)
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{
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if (str == "") return true;
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if (pos != 1) return false;
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b = ((str.IndexOf('+') == -1) & (str.IndexOf('-') == -1)) | (SelectionLength > 0);
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return b;
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}
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return false;
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}
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return true;
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}
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public void CheckMaxMin()
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{
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if (_uiEditType == UITextBox.UIEditType.Integer)
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{
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if (Text == "" && CanEmpty) return;
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if (!int.TryParse(Text, out var a))
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Text = @"0";
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if (hasMaxValue)
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{
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var m = (int)Math.Floor(maxValue);
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if (a > m)
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a = m;
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}
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if (hasMinValue)
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{
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var m = (int)Math.Ceiling(minValue);
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if (a < m)
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a = m;
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}
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Text = a.ToString();
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}
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if (_uiEditType == UITextBox.UIEditType.Double)
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{
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if (Text == "" && CanEmpty) return;
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if (!double.TryParse(Text, out var a))
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Text = a.ToString("f" + decLength);
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if (hasMaxValue)
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{
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if (a > maxValue)
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a = maxValue;
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}
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if (hasMinValue)
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{
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if (a < minValue)
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a = minValue;
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}
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Text = a.ToString("f" + decLength);
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}
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}
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protected override void OnKeyPress(KeyPressEventArgs e)
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{
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if (!Multiline)
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{
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//以下代码 取消按下回车或esc的“叮”声
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if (e.KeyChar == Convert.ToChar(13) || e.KeyChar == Convert.ToChar(27))
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{
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e.Handled = true;
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}
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else if (e.KeyChar == 8)
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{
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}
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else if (!(IsValidChar(Text, e.KeyChar, SelectionStart + 1) & (e.KeyChar >= 32)))
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{
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e.Handled = true;
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}
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}
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base.OnKeyPress(e);
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}
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/// <summary>
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/// 在得到焦点时修改文体框的背景色
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/// </summary>
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/// <param name="e"></param>
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protected override void OnGotFocus(EventArgs e)
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{
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base.OnGotFocus(e);
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if (FocusedSelectAll)
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{
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SelectAll();
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}
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else
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{
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SelectionStart = Text.Length;
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SelectionLength = 0;
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}
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}
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[DefaultValue(false)]
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public bool FocusedSelectAll { get; set; }
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protected override void OnLeave(EventArgs e)
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{
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base.OnLeave(e);
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//如果为整形,为空时自动为0
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if (_uiEditType == UITextBox.UIEditType.Integer)
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{
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if (Text == "" && CanEmpty) return;
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if (Text == "")
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Text = "0";
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if (!Text.IsInt())
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Text = "0";
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}
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//如果为浮点,检查.前后是否为空,为空加0
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if (_uiEditType == UITextBox.UIEditType.Double)
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{
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if (Text == "" && CanEmpty) return;
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if (StringIndexIsChar(Text, 0, '.'))
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Text = @"0" + Text;
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if (StringIndexIsChar(Text, Text.Length - 1, '.'))
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Text = Text + @"0";
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if (StringIndexIsChar(Text, 0, '+') || StringIndexIsChar(Text, 0, '+'))
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if (StringIndexIsChar(Text, 1, '.'))
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Text = Text.Insert(1, @"0");
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if (!double.TryParse(Text, out var doubleValue))
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Text = mask;
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Text = doubleValue.ToString("f" + decLength);
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}
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CheckMaxMin();
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//Invalidate();
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}
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}
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} |