// ***********************************************************************
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// Assembly : HZH_Controls
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// Created : 08-08-2019
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//
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// ***********************************************************************
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// <copyright file="UCHorizontalList.cs">
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// Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
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// </copyright>
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//
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// Blog: https://www.cnblogs.com/bfyx
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// GitHub：https://github.com/kwwwvagaa/NetWinformControl
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// gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
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//
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// If you use this code, please keep this note.
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// ***********************************************************************
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using HZH_Controls;
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namespace KS_Controls.Controls
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{
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/// <summary>
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/// Class UCHorizontalList.
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/// Implements the <see cref="System.Windows.Forms.UserControl" />
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/// </summary>
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/// <seealso cref="System.Windows.Forms.UserControl" />
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public partial class KSHorizontalList : UserControl
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{
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/// <summary>
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/// Gets or sets the selected item.
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/// </summary>
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/// <value>The selected item.</value>
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public KSHorizontalListItem SelectedItem { get; set; }
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/// <summary>
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/// Occurs when [selected item event].
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/// </summary>
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public event EventHandler SelectedItemEvent;
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/// <summary>
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/// The m start item index
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/// </summary>
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private int m_startItemIndex = 0;
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/// <summary>
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/// The is automatic select first
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/// </summary>
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private bool isAutoSelectFirst = true;
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/// <summary>
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/// Gets or sets a value indicating whether this instance is automatic select first.
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/// </summary>
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/// <value><c>true</c> if this instance is automatic select first; otherwise, <c>false</c>.</value>
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public bool IsAutoSelectFirst
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{
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get { return isAutoSelectFirst; }
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set { isAutoSelectFirst = value; }
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}
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/// <summary>
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/// The data source
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/// </summary>
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private List<KeyValuePair<string, string>> dataSource = null;
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/// <summary>
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/// Gets or sets the data source.
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/// </summary>
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/// <value>The data source.</value>
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public List<KeyValuePair<string, string>> DataSource
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{
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get { return dataSource; }
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set
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{
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dataSource = value;
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ReloadSource();
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}
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}
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private Color selectedColor = Color.FromArgb(255, 77, 59);
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[Description("选中颜色"), Category("自定义")]
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public Color SelectedColor
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{
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get { return selectedColor; }
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set { selectedColor = value; }
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="UCHorizontalList" /> class.
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/// </summary>
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public KSHorizontalList()
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{
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InitializeComponent();
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}
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/// <summary>
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/// Reloads the source.
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/// </summary>
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public void ReloadSource()
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{
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try
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{
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ControlHelper.FreezeControl(this, true);
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this.panList.SuspendLayout();
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this.panList.Controls.Clear();
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this.panList.Width = this.panMain.Width;
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if (DataSource != null)
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{
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foreach (var item in DataSource)
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{
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KSHorizontalListItem uc = new KSHorizontalListItem();
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uc.SelectedColor = selectedColor;
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uc.DataSource = item;
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uc.SelectedItem += uc_SelectItem;
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this.panList.Controls.Add(uc);
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}
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}
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this.panList.ResumeLayout(true);
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if (this.panList.Controls.Count > 0)
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this.panList.Width = panMain.Width + this.panList.Controls[0].Location.X * -1;
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this.panList.Location = new Point(0, 0);
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m_startItemIndex = 0;
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if (this.panList.Width > panMain.Width)
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panRight.Visible = true;
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else
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panRight.Visible = false;
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panLeft.Visible = false;
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panList.SendToBack();
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panRight.SendToBack();
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if (isAutoSelectFirst && DataSource != null && DataSource.Count > 0)
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{
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SelectItem((KSHorizontalListItem)this.panList.Controls[0]);
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}
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}
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finally
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{
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ControlHelper.FreezeControl(this, false);
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}
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}
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/// <summary>
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/// Handles the SelectItem event of the uc control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
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void uc_SelectItem(object sender, EventArgs e)
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{
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SelectItem(sender as KSHorizontalListItem);
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}
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/// <summary>
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/// Selects the item.
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/// </summary>
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/// <param name="item">The item.</param>
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private void SelectItem(KSHorizontalListItem item)
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{
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if (SelectedItem != null && !SelectedItem.IsDisposed)
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SelectedItem.SetSelect(false);
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SelectedItem = item;
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SelectedItem.SetSelect(true);
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if (SelectedItemEvent != null)
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SelectedItemEvent(item, null);
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}
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/// <summary>
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/// Handles the MouseDown event of the panLeft control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="MouseEventArgs" /> instance containing the event data.</param>
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private void panLeft_MouseDown(object sender, MouseEventArgs e)
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{
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if (this.panList.Location.X >= 0)
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{
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this.panList.Location = new Point(0, 0);
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return;
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}
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for (int i = m_startItemIndex; i >= 0; i--)
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{
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if (this.panList.Controls[i].Location.X < this.panList.Controls[m_startItemIndex].Location.X - panMain.Width)
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{
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m_startItemIndex = i + 1;
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break; ;
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}
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if (i == 0)
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{
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m_startItemIndex = 0;
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}
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}
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ResetListLocation();
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panRight.Visible = true;
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if (this.panList.Location.X >= 0)
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{
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panLeft.Visible = false;
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}
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else
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{
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panLeft.Visible = true;
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}
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panList.SendToBack();
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panRight.SendToBack();
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}
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/// <summary>
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/// Handles the MouseDown event of the panRight control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="MouseEventArgs" /> instance containing the event data.</param>
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private void panRight_MouseDown(object sender, MouseEventArgs e)
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{
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if (this.panList.Location.X + this.panList.Width <= this.panMain.Width)
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return;
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if (this.panList.Controls.Count <= 0)
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return;
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for (int i = m_startItemIndex; i < this.panList.Controls.Count; i++)
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{
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if (this.panList.Location.X + this.panList.Controls[i].Location.X + this.panList.Controls[i].Width > panMain.Width)
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{
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m_startItemIndex = i;
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break;
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}
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}
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ResetListLocation();
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panLeft.Visible = true;
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if (panList.Width + panList.Location.X <= panMain.Width)
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panRight.Visible = false;
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else
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panRight.Visible = true;
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panList.SendToBack();
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panRight.SendToBack();
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}
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/// <summary>
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/// Resets the list location.
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/// </summary>
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private void ResetListLocation()
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{
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if (this.panList.Controls.Count > 0)
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{
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this.panList.Location = new Point(this.panList.Controls[m_startItemIndex].Location.X * -1, 0);
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}
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}
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/// <summary>
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/// Sets the select.
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/// </summary>
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/// <param name="strKey">The string key.</param>
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public void SetSelect(string strKey)
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{
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foreach (KSHorizontalListItem item in this.panList.Controls)
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{
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if (item.DataSource.Key == strKey)
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{
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SelectItem(item);
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return;
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}
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}
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}
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}
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}
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