338 lines
10 KiB
C#
338 lines
10 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) 2012-2024 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: UINumPadTextBox.cs
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* 文件说明: 模拟数字键盘输入框
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* 当前版本: V3.3
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* 创建日期: 2023-03-18
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*
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* 2023-03-18: V3.3.3 增加文件说明
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* 2023-03-26: V3.3.3 增加默认事件ValueChanged，下键盘Enter事件相应此事件
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* 2023-03-26: V3.3.4 增加了最大值、最小值等属性
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* 2023-06-11: V3.6.6 下拉框可选放大倍数为2
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******************************************************************************/
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using System;
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using System.ComponentModel;
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using System.Drawing;
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using System.Runtime.InteropServices;
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using System.Windows.Forms;
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namespace Sunny.UI
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{
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[ToolboxItem(true)]
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[DefaultEvent("ValueChanged")]
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public class UINumPadTextBox : UIDropControl, IToolTip, IHideDropDown
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{
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public UINumPadTextBox()
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{
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InitializeComponent();
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edit.KeyDown += Edit_KeyDown;
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edit.CanEmpty = true;
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fullControlSelect = true;
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}
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public delegate void OnValueChanged(object sender, string value);
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public event OnValueChanged ValueChanged;
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private NumPadType numPadType = NumPadType.Text;
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[DefaultValue(NumPadType.Text)]
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[Description("小键盘类型"), Category("SunnyUI")]
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public NumPadType NumPadType
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{
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get => numPadType;
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set
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{
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numPadType = value;
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edit.MaxLength = 32767;
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switch (numPadType)
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{
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case NumPadType.Text:
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edit.Type = UITextBox.UIEditType.String;
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break;
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case NumPadType.Integer:
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edit.Type = UITextBox.UIEditType.Integer;
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break;
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case NumPadType.Double:
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edit.Type = UITextBox.UIEditType.Double;
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break;
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case NumPadType.IDNumber:
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edit.Type = UITextBox.UIEditType.String;
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edit.MaxLength = 18;
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break;
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default:
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edit.Type = UITextBox.UIEditType.String;
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break;
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}
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edit.Text = "";
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}
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}
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private void Edit_KeyDown(object sender, KeyEventArgs e)
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{
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if (e.KeyCode == Keys.Down || e.KeyCode == Keys.Up)
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{
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if (!NumPadForm.Visible)
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ShowDropDown();
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}
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else if (e.KeyCode == Keys.Escape)
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{
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NumPadForm.Close();
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}
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else if (e.KeyCode == Keys.Return)
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{
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if (NumPadForm.Visible)
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{
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NumPadForm.Close();
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}
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else
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{
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ShowDropDown();
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}
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}
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else
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{
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base.OnKeyDown(e);
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}
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}
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public Control ExToolTipControl()
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{
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return edit;
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}
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private readonly UINumPadItem item = new UINumPadItem();
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private UIDropDown numPadForm;
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private UIDropDown NumPadForm
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{
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get
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{
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if (numPadForm == null)
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{
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numPadForm = new UIDropDown(item);
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if (numPadForm != null)
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{
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numPadForm.VisibleChanged += NumBoardForm_VisibleChanged;
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numPadForm.ValueChanged += NumBoardForm_ValueChanged;
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}
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}
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return numPadForm;
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}
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}
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[DllImport("user32.dll", EntryPoint = "PostMessageA", SetLastError = true)]
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public static extern int PostMessage(IntPtr hWnd, int Msg, Keys wParam, int lParam);
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public const int WM_CHAR = 256;
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private void NumBoardForm_ValueChanged(object sender, object value)
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{
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int start = edit.SelectionStart;
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switch ((int)value)
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{
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case 88:
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if (Text.Length == 17)
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{
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Win32.User.PostMessage(edit.Handle, WM_CHAR, (int)value, 0);
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edit.SelectionStart = start;
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edit.Select(start, 0);
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//this.Focus();
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}
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break;
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case 13:
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ValueChanged?.Invoke(this, Text);
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break;
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default:
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Win32.User.PostMessage(edit.Handle, WM_CHAR, (int)value, 0);
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edit.SelectionStart = start;
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edit.Select(start, 0);
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//this.Focus();
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break;
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}
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}
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const uint KEYEVENTF_EXTENDEDKEY = 0x1;
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const uint KEYEVENTF_KEYUP = 0x2;
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[DllImport("user32.dll")]
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static extern short GetKeyState(int nVirtKey);
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[DllImport("user32.dll")]
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static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, uint dwExtraInfo);
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public enum VirtualKeys : byte
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{
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VK_NUMLOCK = 0x90, //数字锁定键
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VK_SCROLL = 0x91, //滚动锁定
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VK_CAPITAL = 0x14, //大小写锁定
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VK_A = 62
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}
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public bool CapsState;
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public static bool GetState(VirtualKeys Key)
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{
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return (GetKeyState((int)Key) == 1);
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}
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public static void SetState(VirtualKeys Key, bool State)
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{
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if (State != GetState(Key))
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{
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keybd_event((byte)Key, 0x45, KEYEVENTF_EXTENDEDKEY | 0, 0);
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keybd_event((byte)Key, 0x45, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
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}
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}
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private void NumBoardForm_VisibleChanged(object sender, System.EventArgs e)
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{
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dropSymbol = SymbolNormal;
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if (NumPadForm.Visible)
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{
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dropSymbol = SymbolDropDown;
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}
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if (!NumPadForm.Visible)
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{
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SetState(VirtualKeys.VK_CAPITAL, CapsState);
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}
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Invalidate();
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}
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private void UIKeyBoardTextBox_ButtonClick(object sender, System.EventArgs e)
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{
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if (NumPadForm.Visible)
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{
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NumPadForm.Close();
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}
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else
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{
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ShowDropDown();
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}
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}
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private void ShowDropDown()
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{
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NumPadForm.AutoClose = false;
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item.NumPadType = NumPadType;
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item.SetDPIScale();
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item.SetStyleColor(UIStyles.ActiveStyleColor);
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if (numPadType == NumPadType.IDNumber)
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{
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CapsState = GetState(VirtualKeys.VK_CAPITAL);
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SetState(VirtualKeys.VK_CAPITAL, true);
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}
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if (!NumPadForm.Visible)
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{
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Size size = SizeMultiple == 1 ? new Size(320, 195) : new Size(320, 390);
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NumPadForm.Show(this, size);
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}
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edit.Focus();
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}
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[DefaultValue(1)]
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[Description("弹窗放大倍数，可以1或者2"), Category("SunnyUI")]
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public int SizeMultiple { get => item.SizeMultiple; set => item.SizeMultiple = value; }
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private void InitializeComponent()
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{
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SuspendLayout();
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//
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// edit
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//
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edit.Leave += edit_Leave;
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//
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// UIKeyBoardTextBox
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//
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Name = "UIKeyBoardTextBox";
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ButtonClick += UIKeyBoardTextBox_ButtonClick;
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ResumeLayout(false);
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PerformLayout();
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}
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/// <summary>
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/// 必需的设计器变量。
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/// </summary>
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private System.ComponentModel.IContainer components = null;
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/// <summary>
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/// 清理所有正在使用的资源。
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/// </summary>
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/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
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protected override void Dispose(bool disposing)
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{
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if (disposing && (components != null))
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{
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components.Dispose();
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}
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item?.Dispose();
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numPadForm?.Dispose();
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base.Dispose(disposing);
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}
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private void edit_Leave(object sender, EventArgs e)
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{
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HideDropDown();
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}
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public void HideDropDown()
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{
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try
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{
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if (NumPadForm != null && NumPadForm.Visible)
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NumPadForm.Close();
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}
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catch
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{
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}
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}
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/// <summary>
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/// 当InputType为数字类型时，能输入的最大值
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/// </summary>
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[Description("当InputType为数字类型时，能输入的最大值。"), Category("SunnyUI")]
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[DefaultValue(2147483647D)]
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public double Maximum
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{
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get => edit.MaxValue;
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set => edit.MaxValue = value;
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}
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/// <summary>
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/// 当InputType为数字类型时，能输入的最小值
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/// </summary>
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[Description("当InputType为数字类型时，能输入的最小值。"), Category("SunnyUI")]
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[DefaultValue(-2147483648D)]
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public double Minimum
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{
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get => edit.MinValue;
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set => edit.MinValue = value;
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}
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[Description("浮点数，显示文字小数位数"), Category("SunnyUI")]
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[DefaultValue(2)]
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public int DecimalPlaces
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{
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get => edit.DecLength;
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set => edit.DecLength = Math.Max(value, 0);
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}
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}
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}
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