using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Windows.Forms;
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using DPumpHydr.WinFrmUI.WenSkin.Controls;
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namespace DPumpHydr.WinFrmUI.WenSkin.Forms
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{
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public partial class WenTabControlForm : LeftButtonForm
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{
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public WenTabControlForm()
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{
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RefreshPadding();
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this.Name = "WenTabControlForm";
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this.Text = "WenTabControlForm";
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tabControl = new WenTabControl()
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{
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Dock = DockStyle.Fill,
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IconEnable=true,
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};
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tabControl.SelectedIndexChanged += (s, e) =>
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{
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this.Text = $"{DefaultText} - {tabControl.SelectedTab?.Text}";
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};
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tabControl.ControlRemoved += TabControl_ControlRemoved;
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this.Controls.Add(tabControl);
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}
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private void TabControl_ControlRemoved(object sender, ControlEventArgs e)
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{
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e.Control.Dispose();
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}
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private WenTabControl tabControl;
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#region 公有属性
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[Category("Wen"), Description("选项卡点击后默认显示内容"), DefaultValue(null)]
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public string DefaultText { get; set; }
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#endregion
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public void TabPageAdd(Control c, Image image = null)
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{
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TabControlAddEventArgs e = new TabControlAddEventArgs(c)
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{
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Image = image,
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};
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OnTabControlAdd(e);
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}
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protected override void OnLeftMenuClick(LeftMenuItem item)
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{
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base.OnLeftMenuClick(item);
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TabControlAddEventArgs e = new TabControlAddEventArgs(item);
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OnTabControlAdd(e);
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}
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//检查TabPage 是否存在
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public TabPage GetTabPage(string text)
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{
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foreach (TabPage item in tabControl.TabPages)
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{
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if (item.Text == text)
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return item;
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}
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return null;
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}
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//显示指定页
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public void ShowTabPage(string text)
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{
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ShowTabPage(GetTabPage(text));
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}
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//显示指定页
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public void ShowTabPage(TabPage tab)
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{
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tabControl.SelectedTab = tab;
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}
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#region 委托事件
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protected virtual void OnTabControlAdd(TabControlAddEventArgs e)
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{
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foreach (WenTabPage p in tabControl.TabPages)
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{
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if (p.Text == e.Text)
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{
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if (p.Controls.Count > 0 && e.Control == null)
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{
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e.Control = p.Controls[0];
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}
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tabControl.SelectedTab = p;
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e.TabPage = p;
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e.Show = true;
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e.Refresh = false;
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e.NewAdd = false;
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}
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}
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if (e.TabPage == null)
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{
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e.TabPage = new WenTabPage(e.Text) { BackColor = Color.Transparent, Image = e.Image ?? e.Item.Image };
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}
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TabControlAdd?.Invoke(this, e);
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if (e.State)
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{
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if (e.NewAdd && !tabControl.TabPages.Contains(e.TabPage))
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{
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tabControl.TabPages.Add(e.TabPage);
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tabControl.SelectedTab = e.TabPage;
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this.Text = $"{DefaultText} - {e.TabPage.Text}";
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}
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if (e.Control != null && e.Refresh)
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{
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e.TabPage.Controls.Clear();
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e.Control.Dock = DockStyle.Fill;
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e.TabPage.Controls.Add(e.Control);
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Point mouseOff = new Point(0, 0); //鼠标移动位置变量
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bool leftFlag = false; //标签是否为左键
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e.Control.MouseDown += (s, e) =>
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{
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if (e.Button == MouseButtons.Left)
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{
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var point = this.PointToClient(MousePosition);
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mouseOff = new Point(-point.X, -point.Y);
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leftFlag = true;
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//点击左键按下时标注为true;
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}
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};
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e.Control.MouseMove += (s, e) =>
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{
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if (leftFlag)
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{
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Point mouseSet = MousePosition;
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mouseSet.Offset(mouseOff.X, mouseOff.Y);
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//设置移动后的位置
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Location = mouseSet;
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}
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};
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e.Control.MouseUp += (s, e) =>
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{
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if (leftFlag)
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{
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leftFlag = false;
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//释放鼠标后标注为false;
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}
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};
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}
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}
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}
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//声明 API 函数
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[DllImport("User32.dll", EntryPoint = "SendMessage")]
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private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
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public class TabControlAddEventArgs : EventArgs
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{
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public TabControlAddEventArgs()
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{
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TabPage = null;
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Control = null;
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Show = false;
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State = true;
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Refresh = true;
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NewAdd = true;
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}
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public TabControlAddEventArgs(string text) : this()
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{
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Item = new LeftMenuItem(text);
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Text = text;
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}
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public TabControlAddEventArgs(Control c) : this(c.Text)
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{
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Control = c;
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}
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public TabControlAddEventArgs(LeftMenuItem item) : this()
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{
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Item = item;
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Text = item.Text;
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}
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private Control control;
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private bool newAdd;
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private string text;
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private Image image;
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public LeftMenuItem Item { get; set; }
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public Control Control { get => control; set { control = value; Refresh = true; } }
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[Category("Wen"), Description("当前选项卡"), DefaultValue(null)]
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public WenTabPage TabPage { get; set; }
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[Category("Wen"), Description("是否已经显示"), DefaultValue(null)]
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public bool Show { get; set; }
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[Category("Wen"), Description("是否继续处理事件"), DefaultValue(null)]
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public bool State { get; set; }
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[Category("Wen"), Description("标签页显示内容"), DefaultValue(null)]
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public string Text
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{
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get => text;
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set
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{
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text = value;
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if (TabPage != null)
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TabPage.Text = value;
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}
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}
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[Category("Wen"), Description("标签页文字显示内容"), DefaultValue(null)]
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public string TabPageText { get => TabPage.Text; set => TabPage.Text = value; }
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[Category("Wen"), Description("是否刷新内容"), DefaultValue(null)]
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public bool Refresh { get; set; }
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[Category("Wen"), Description("是否添加新标签页"), DefaultValue(null)]
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public bool NewAdd { get => newAdd; set { newAdd = value; if (!value) State = false; } }
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[Category("Wen"), Description("标签图标"), DefaultValue(null)]
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public Image Image { get => image; set { image = value; if (TabPage != null) TabPage.Image = value; } }
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}
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#endregion
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#region 委托
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public delegate void TabControlAddEventHandler(object sender, TabControlAddEventArgs e);
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[Category("Wen"), Description("选项卡添加事件")]
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public event TabControlAddEventHandler TabControlAdd;
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#endregion
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}
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}
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