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(八十三)c#Winform自定义控件-导航菜单(扩展)

2019-10-11 11:18 1856 查看

前提

入行已经7,8年了,一直想做一套漂亮点的自定义控件,于是就有了本系列文章。

GitHub:https://github.com/kwwwvagaa/NetWinformControl

码云:https://gitee.com/kwwwvagaa/net_winform_custom_control.git

如果觉得写的还行,请点个 star 支持一下吧

欢迎前来交流探讨: 企鹅群568015492 

// ***********************************************************************
// Assembly         : HZH_Controls
// Created          : 2019-10-11
//
// ***********************************************************************
// <copyright file="UCNavigationMenuExt.cs">
//     Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
// </copyright>
//
// Blog: https://www.cnblogs.com/bfyx
// GitHub:https://github.com/kwwwvagaa/NetWinformControl
// gitee:https://gitee.com/kwwwvagaa/net_winform_custom_control.git
//
// If you use this code, please keep this note.
// ***********************************************************************
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using HZH_Controls.Forms;

namespace HZH_Controls.Controls
{
/// <summary>
/// Class UCNavigationMenuExt.
/// Implements the <see cref="System.Windows.Forms.UserControl" />
/// </summary>
/// <seealso cref="System.Windows.Forms.UserControl" />
[DefaultEvent("ClickItemed")]
public partial class UCNavigationMenuExt : UserControl
{
/// <summary>
/// Occurs when [click itemed].
/// </summary>
[Description("点击节点事件"), Category("自定义")]

public event EventHandler ClickItemed;
/// <summary>
/// The select item
/// </summary>
private NavigationMenuItemExt selectItem = null;

/// <summary>
/// Gets the select item.
/// </summary>
/// <value>The select item.</value>
[Description("选中的节点"), Category("自定义")]
public NavigationMenuItemExt SelectItem
{
get { return selectItem; }
private set { selectItem = value; }
}

/// <summary>
/// The items
/// </summary>
NavigationMenuItemExt[] items;

/// <summary>
/// Gets or sets the items.
/// </summary>
/// <value>The items.</value>
[Description("节点列表"), Category("自定义")]
public NavigationMenuItemExt[] Items
{
get { return items; }
set
{
items = value;
ReloadMenu();
}
}
/// <summary>
/// The tip color
/// </summary>
private Color tipColor = Color.FromArgb(255, 87, 34);

/// <summary>
/// Gets or sets the color of the tip.
/// </summary>
/// <value>The color of the tip.</value>
[Description("角标颜色"), Category("自定义")]
public Color TipColor
{
get { return tipColor; }
set { tipColor = value; }
}

/// <summary>
/// 获取或设置控件的前景色。
/// </summary>
/// <value>The color of the fore.</value>
/// <PermissionSet>
///   <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
/// </PermissionSet>
public override System.Drawing.Color ForeColor
{
get
{
return base.ForeColor;
}
set
{
base.ForeColor = value;
foreach (Control c in this.Controls)
{
c.ForeColor = value;
}
}
}
/// <summary>
/// 获取或设置控件显示的文字的字体。
/// </summary>
/// <value>The font.</value>
/// <PermissionSet>
///   <IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
///   <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
///   <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" />
///   <IPermission class="System.Diagnostics.PerformanceCounterPermission, System, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
/// </PermissionSet>
public override Font Font
{
get
{
return base.Font;
}
set
{
base.Font = value;
foreach (Control c in this.Controls)
{
c.Font = value;
}
}
}

/// <summary>
/// The m LST anchors
/// </summary>
Dictionary<NavigationMenuItemExt, FrmAnchor> m_lstAnchors = new Dictionary<NavigationMenuItemExt, FrmAnchor>();
/// <summary>
/// Initializes a new instance of the <see cref="UCNavigationMenuExt"/> class.
/// </summary>
public UCNavigationMenuExt()
{
InitializeComponent();
items = new NavigationMenuItemExt[0];
if (ControlHelper.IsDesignMode())
{
items = new NavigationMenuItemExt[4];
for (int i = 0; i < 4; i++)
{
items[i] = new NavigationMenuItemExt()
{
Text = "菜单" + (i + 1),
AnchorRight = i >= 2
};
}
}
}

/// <summary>
/// Reloads the menu.
/// </summary>
private void ReloadMenu()
{
try
{
ControlHelper.FreezeControl(this, true);
this.Controls.Clear();
if (items != null && items.Length > 0)
{
foreach (var item in items)
{
var menu = (NavigationMenuItemExt)item;
Label lbl = new Label();
lbl.AutoSize = false;
lbl.TextAlign = ContentAlignment.MiddleCenter;
lbl.Width = menu.ItemWidth;
lbl.Text = menu.Text;

lbl.Font = Font;
lbl.ForeColor = ForeColor;

lbl.Paint += lbl_Paint;
lbl.MouseEnter += lbl_MouseEnter;
lbl.Tag = menu;
lbl.Click += lbl_Click;
if (menu.AnchorRight)
{
lbl.Dock = DockStyle.Right;
}
else
{
lbl.Dock = DockStyle.Left;
}
this.Controls.Add(lbl);

lbl.BringToFront();
}

}
}
finally
{
ControlHelper.FreezeControl(this, false);
}
}

/// <summary>
/// Handles the Click event of the lbl control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
void lbl_Click(object sender, EventArgs e)
{
Label lbl = sender as Label;
if (lbl.Tag != null)
{
var menu = (NavigationMenuItemExt)lbl.Tag;
if (menu.ShowControl == null)
{
selectItem = menu;

while (m_lstAnchors.Count > 0)
{
try
{
foreach (var item in m_lstAnchors)
{
item.Value.Hide();
}
}
catch { }
}

if (ClickItemed != null)
{
ClickItemed(this, e);
}
}
}
}
/// <summary>
/// Handles the MouseEnter event of the lbl control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
void lbl_MouseEnter(object sender, EventArgs e)
{
Label lbl = sender as Label;
var menu = lbl.Tag as NavigationMenuItemExt;
foreach (var item in m_lstAnchors)
{
m_lstAnchors[item.Key].Hide();
}
if (menu.ShowControl != null)
{
if (!m_lstAnchors.ContainsKey(menu))
{
m_lstAnchors[menu] = new FrmAnchor(lbl, menu.ShowControl);
}
m_lstAnchors[menu].Show();
m_lstAnchors[menu].Size = menu.ShowControl.Size;
}
}
/// <summary>
/// Handles the Paint event of the lbl control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="PaintEventArgs" /> instance containing the event data.</param>
void lbl_Paint(object sender, PaintEventArgs e)
{
Label lbl = sender as Label;
if (lbl.Tag != null)
{
var menu = (NavigationMenuItemExt)lbl.Tag;
e.Graphics.SetGDIHigh();

if (menu.ShowTip)
{
if (!string.IsNullOrEmpty(menu.TipText))
{
var rect = new Rectangle(lbl.Width - 25, lbl.Height / 2 - 10, 20, 20);
var path = rect.CreateRoundedRectanglePath(5);
e.Graphics.FillPath(new SolidBrush(tipColor), path);

1d51
e.Graphics.DrawString(menu.TipText, new Font("微软雅黑", 8f), new SolidBrush(Color.White), rect, new StringFormat() { Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center });
}
else
{
e.Graphics.FillEllipse(new SolidBrush(tipColor), new Rectangle(lbl.Width - 20, lbl.Height / 2 - 10, 10, 10));
}
}
if (menu.Icon != null)
{
e.Graphics.DrawImage(menu.Icon, new Rectangle(1, (lbl.Height - 25) / 2, 25, 25), 0, 0, menu.Icon.Width, menu.Icon.Height, GraphicsUnit.Pixel);
}
}
}
}
}
View Code  

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