669 lines
21 KiB
C#
669 lines
21 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) 2012-2022 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: UIListBox.cs
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* 文件说明: 列表框
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* 当前版本: V3.1
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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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* 2020-04-25: V2.2.4 更新主题配置类
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* 2020-05-21: V2.2.5 增加鼠标滑过高亮
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* 开发日志：https://www.cnblogs.com/yhuse/p/12933885.html
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* 2021-06-03: V3.0.4 修改对象绑定的显示问题
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* 2021-07-29: V3.0.5 增加多选行
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* 2021-07-30: V3.0.5 选中项显示方角
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* 2021-08-04: V3.0.5 增加Items变更的事件
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* 2021-12-29: V3.0.9 增加修改文字颜色
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* 2022-02-23: V3.1.1 按键上下移动选择项目时，滚动条跟随
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* 2022-03-08: V3.1.1 修复在选中某一项后，清除选中项需要两次操作
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* 2022-03-19: V3.1.1 重构主题配色
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* 2022-05-15: V3.1.8 增加滚动条颜色设置
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* 2022-09-05: V3.2.3 修复Click，DoubleClick事件
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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.Drawing.Design;
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using System.Windows.Forms;
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using static System.Windows.Forms.ListBox;
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namespace Sunny.UI
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{
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[DefaultEvent("ItemClick")]
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[DefaultProperty("Items")]
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public sealed class UIListBox : UIPanel, IToolTip
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{
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private readonly ListBoxEx listbox = new ListBoxEx();
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private readonly UIScrollBar bar = new UIScrollBar();
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private readonly Timer timer;
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public UIListBox()
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{
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SetStyleFlags(true, false);
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ShowText = false;
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Padding = new Padding(2);
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bar.ValueChanged += Bar_ValueChanged;
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bar.Width = SystemInformation.VerticalScrollBarWidth + 2;
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bar.Parent = this;
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bar.Dock = DockStyle.None;
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bar.Style = UIStyle.Custom;
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bar.Visible = false;
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listbox.Parent = this;
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listbox.Dock = DockStyle.Fill;
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listbox.Show();
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listbox.Bar = bar;
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listbox.SelectedIndexChanged += Listbox_SelectedIndexChanged;
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listbox.SelectedValueChanged += Listbox_SelectedValueChanged;
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listbox.Click += Listbox_Click;
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listbox.MouseClick += Listbox_MouseClick;
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listbox.DoubleClick += Listbox_DoubleClick;
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listbox.BeforeDrawItem += Listbox_BeforeDrawItem;
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listbox.MouseDown += Listbox_MouseDown;
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listbox.MouseUp += Listbox_MouseUp;
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listbox.MouseMove += Listbox_MouseMove;
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listbox.DataSourceChanged += Listbox_DataSourceChanged;
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listbox.DisplayMemberChanged += Listbox_DisplayMemberChanged;
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listbox.ValueMemberChanged += Listbox_ValueMemberChanged;
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listbox.ItemsClear += Listbox_ItemsClear;
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listbox.ItemsAdd += Listbox_ItemsAdd;
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listbox.ItemsRemove += Listbox_ItemsRemove;
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listbox.ItemsInsert += Listbox_ItemsInsert;
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listbox.KeyPress += Listbox_KeyPress;
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listbox.KeyDown += Listbox_KeyDown;
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listbox.KeyUp += Listbox_KeyUp;
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listbox.MouseEnter += Listbox_MouseEnter;
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listbox.MouseLeave += Listbox_MouseLeave;
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listbox.DrawItem += Listbox_DrawItem;
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listbox.MouseDoubleClick += Listbox_MouseDoubleClick;
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timer = new Timer();
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timer.Tick += Timer_Tick;
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timer.Start();
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}
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public new event MouseEventHandler MouseDoubleClick;
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private void Listbox_MouseDoubleClick(object sender, MouseEventArgs e)
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{
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MouseDoubleClick?.Invoke(this, e);
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}
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private Color scrollBarColor = Color.FromArgb(80, 160, 255);
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/// <summary>
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/// 填充颜色，当值为背景色或透明色或空值则不填充
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/// </summary>
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[Description("滚动条填充颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "80, 160, 255")]
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public Color ScrollBarColor
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{
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get => scrollBarColor;
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set
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{
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scrollBarColor = value;
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bar.HoverColor = bar.PressColor = bar.ForeColor = value;
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_style = UIStyle.Custom;
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Invalidate();
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}
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}
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private Color scrollBarBackColor = Color.FromArgb(243, 249, 255);
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/// <summary>
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/// 填充颜色，当值为背景色或透明色或空值则不填充
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/// </summary>
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[Description("滚动条背景颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "243, 249, 255")]
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public Color ScrollBarBackColor
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{
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get => scrollBarBackColor;
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set
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{
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scrollBarBackColor = value;
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bar.FillColor = value;
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_style = UIStyle.Custom;
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Invalidate();
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}
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}
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private void Listbox_DrawItem(object sender, DrawItemEventArgs e)
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{
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DrawItem?.Invoke(sender, e);
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}
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public event DrawItemEventHandler DrawItem;
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protected override void Dispose(bool disposing)
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{
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base.Dispose(disposing);
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timer?.Stop();
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timer?.Dispose();
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}
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public new event EventHandler MouseLeave;
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public new event EventHandler MouseEnter;
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public new event KeyPressEventHandler KeyPress;
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public new event KeyEventHandler KeyDown;
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public new event KeyEventHandler KeyUp;
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private void Listbox_MouseLeave(object sender, EventArgs e)
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{
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MouseLeave?.Invoke(this, e);
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}
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private void Listbox_MouseEnter(object sender, EventArgs e)
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{
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MouseEnter?.Invoke(this, e);
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}
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private void Listbox_KeyUp(object sender, KeyEventArgs e)
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{
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KeyUp?.Invoke(this, e);
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}
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private void Listbox_KeyDown(object sender, KeyEventArgs e)
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{
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KeyDown?.Invoke(this, e);
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}
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private void Listbox_KeyPress(object sender, KeyPressEventArgs e)
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{
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KeyPress?.Invoke(this, e);
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}
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/// <summary>
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/// 需要额外设置ToolTip的控件
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/// </summary>
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/// <returns>控件</returns>
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public Control ExToolTipControl()
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{
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return listbox;
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}
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private void Listbox_MouseClick(object sender, MouseEventArgs e)
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{
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MouseClick?.Invoke(this, e);
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}
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public new event MouseEventHandler MouseClick;
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public event EventHandler ItemsClear;
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public event EventHandler ItemsAdd;
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public event EventHandler ItemsRemove;
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public event EventHandler ItemsInsert;
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public void BeginUpdate()
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{
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listbox.BeginUpdate();
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}
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public void EndUpdate()
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{
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listbox.EndUpdate();
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}
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public void ClearSelected()
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{
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listbox.SelectedIndex = -1;
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listbox.ClearSelected();
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}
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public int FindString(string s, int startIndex)
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{
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return listbox.FindString(s, startIndex);
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}
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public int FindStringExact(string s, int startIndex)
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{
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return listbox.FindStringExact(s, startIndex);
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}
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public Rectangle GetItemRectangle(int index)
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{
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return listbox.GetItemRectangle(index);
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}
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public bool GetSelected(int index)
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{
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return listbox.GetSelected(index);
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}
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public void SetSelected(int index, bool value)
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{
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listbox.SetSelected(index, value);
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}
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private void Listbox_ItemsInsert(object sender, EventArgs e)
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{
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ItemsInsert?.Invoke(this, e);
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}
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private void Listbox_ItemsRemove(object sender, EventArgs e)
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{
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ItemsRemove?.Invoke(this, e);
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}
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private void Listbox_ItemsAdd(object sender, EventArgs e)
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{
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ItemsAdd?.Invoke(this, e);
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}
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private void Listbox_ItemsClear(object sender, EventArgs e)
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{
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ItemsClear?.Invoke(this, e);
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}
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public int FindString(string s)
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{
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return listbox.FindString(s);
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}
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public int FindStringExact(string s)
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{
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return listbox.FindStringExact(s);
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}
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[Browsable(false)]
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public ListBox ListBox => listbox;
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public int IndexFromPoint(Point p)
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{
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return listbox.IndexFromPoint(p);
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}
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public int IndexFromPoint(int x, int y)
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{
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return listbox.IndexFromPoint(x, y);
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}
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[DefaultValue(StringAlignment.Near)]
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[Description("列表项高度"), Category("SunnyUI")]
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public new StringAlignment TextAlignment
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{
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get => listbox.TextAlignment;
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set => listbox.TextAlignment = value;
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}
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[DefaultValue(SelectionMode.One)]
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[Description("选择项所用方法"), Category("SunnyUI")]
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public SelectionMode SelectionMode
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{
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get => listbox.SelectionMode;
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set => listbox.SelectionMode = value;
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}
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[DefaultValue(SelectionMode.One)]
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[Description("选择项所用方法"), Category("SunnyUI")]
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public SelectedIndexCollection SelectedIndices
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{
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get => listbox.SelectedIndices;
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}
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[DefaultValue(false)]
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public bool Sorted
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{
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get => listbox.Sorted;
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set => listbox.Sorted = value;
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}
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[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
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public int TopIndex
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{
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get => listbox.TopIndex;
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set => listbox.TopIndex = value;
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}
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[DefaultValue(true)]
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public bool UseTabStops
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{
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get => listbox.UseTabStops;
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set => listbox.UseTabStops = value;
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}
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[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
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public SelectedObjectCollection SelectedItems
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{
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get => listbox.SelectedItems;
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}
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protected override void OnContextMenuStripChanged(EventArgs e)
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{
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base.OnContextMenuStripChanged(e);
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listbox.ContextMenuStrip = ContextMenuStrip;
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}
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private void Listbox_MouseMove(object sender, MouseEventArgs e)
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{
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MouseMove?.Invoke(this, e);
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}
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private void Listbox_MouseUp(object sender, MouseEventArgs e)
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{
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MouseUp?.Invoke(this, e);
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}
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private void Listbox_MouseDown(object sender, MouseEventArgs e)
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{
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MouseDown?.Invoke(this, e);
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}
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public new event MouseEventHandler MouseDown;
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public new event MouseEventHandler MouseUp;
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public new event MouseEventHandler MouseMove;
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private void Timer_Tick(object sender, EventArgs e)
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{
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if (Items.Count == 0 && LastCount != 0)
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{
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LastCount = 0;
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timer.Stop();
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ItemsCountChange?.Invoke(this, e);
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timer.Start();
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}
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}
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/// <summary>
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/// 重载字体变更
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/// </summary>
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/// <param name="e">参数</param>
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protected override void OnFontChanged(EventArgs e)
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{
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base.OnFontChanged(e);
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listbox.IsScaled = true;
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listbox.Font = Font;
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}
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||
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/// <summary>
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/// 重载控件尺寸变更
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/// </summary>
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/// <param name="e">参数</param>
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protected override void OnSizeChanged(EventArgs e)
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{
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base.OnSizeChanged(e);
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bar.Top = 2;
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bar.Height = Height - 4;
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bar.Left = Width - bar.Width - 2;
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}
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private void Listbox_BeforeDrawItem(object sender, ObjectCollection items, DrawItemEventArgs e)
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{
|
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if (Items.Count != LastCount)
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{
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listbox.SetScrollInfo();
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LastCount = Items.Count;
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ItemsCountChange?.Invoke(this, EventArgs.Empty);
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}
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}
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private void Listbox_DoubleClick(object sender, EventArgs e)
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{
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DoubleClick?.Invoke(this, e);
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}
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private void Listbox_Click(object sender, EventArgs e)
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{
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Click?.Invoke(this, e);
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}
|
||
|
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public new event EventHandler Click;
|
||
|
||
public new event EventHandler DoubleClick;
|
||
|
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public event EventHandler ItemsCountChange;
|
||
|
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public event EventHandler SelectedIndexChanged;
|
||
|
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public event EventHandler SelectedValueChanged;
|
||
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private void Listbox_SelectedValueChanged(object sender, EventArgs e)
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||
{
|
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SelectedValueChanged?.Invoke(this, e);
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Text = listbox.SelectedItem?.ToString();
|
||
}
|
||
|
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private void Listbox_SelectedIndexChanged(object sender, EventArgs e)
|
||
{
|
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SelectedIndexChanged?.Invoke(this, e);
|
||
}
|
||
|
||
[DefaultValue(25)]
|
||
[Description("列表项高度"), Category("SunnyUI")]
|
||
public int ItemHeight
|
||
{
|
||
get => listbox.ItemHeight;
|
||
set => listbox.ItemHeight = value;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 设置主题样式
|
||
/// </summary>
|
||
/// <param name="uiColor">主题样式</param>
|
||
public override void SetStyleColor(UIBaseStyle uiColor)
|
||
{
|
||
base.SetStyleColor(uiColor);
|
||
|
||
if (bar != null)
|
||
{
|
||
bar.ForeColor = uiColor.ListBarForeColor;
|
||
bar.HoverColor = uiColor.ButtonFillHoverColor;
|
||
bar.PressColor = uiColor.ButtonFillPressColor;
|
||
bar.FillColor = uiColor.ListBarFillColor;
|
||
|
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scrollBarColor = uiColor.ListBarForeColor;
|
||
scrollBarBackColor = uiColor.ListBarFillColor;
|
||
}
|
||
|
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hoverColor = uiColor.ListItemHoverColor;
|
||
if (listbox != null)
|
||
{
|
||
listbox.HoverColor = hoverColor;
|
||
listbox.SetStyleColor(uiColor);
|
||
listbox.BackColor = uiColor.ListBackColor;
|
||
listbox.ForeColor = uiColor.ListForeColor;
|
||
}
|
||
|
||
fillColor = uiColor.ListBackColor;
|
||
}
|
||
|
||
protected override void AfterSetFillColor(Color color)
|
||
{
|
||
base.AfterSetFillColor(color);
|
||
if (listbox != null)
|
||
{
|
||
listbox.BackColor = color;
|
||
}
|
||
}
|
||
|
||
protected override void AfterSetForeColor(Color color)
|
||
{
|
||
base.AfterSetForeColor(color);
|
||
if (listbox != null)
|
||
{
|
||
listbox.ForeColor = color;
|
||
}
|
||
}
|
||
|
||
private int LastCount;
|
||
|
||
private int lastBarValue = -1;
|
||
|
||
private void Bar_ValueChanged(object sender, EventArgs e)
|
||
{
|
||
if (listbox != null)
|
||
{
|
||
if (bar.Value != lastBarValue)
|
||
{
|
||
ScrollBarInfo.SetScrollValue(listbox.Handle, bar.Value);
|
||
lastBarValue = bar.Value;
|
||
}
|
||
}
|
||
}
|
||
|
||
protected override void OnRadiusChanged(int value)
|
||
{
|
||
base.OnRadiusChanged(value);
|
||
Padding = new Padding(Math.Max(2, value / 2));
|
||
}
|
||
|
||
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
|
||
[Localizable(true)]
|
||
[Editor("System.Windows.Forms.Design.ListControlStringCollectionEditor", typeof(UITypeEditor))]
|
||
[MergableProperty(false)]
|
||
[Description("列表项"), Category("SunnyUI")]
|
||
public ObjectCollection Items => listbox.Items;
|
||
|
||
[Browsable(false)]
|
||
public int Count => Items.Count;
|
||
|
||
public void SelectedFirst()
|
||
{
|
||
listbox.SelectedFirst();
|
||
}
|
||
|
||
[DefaultValue(typeof(Color), "80, 160, 255")]
|
||
[Description("列表项选中背景颜色"), Category("SunnyUI")]
|
||
public Color ItemSelectBackColor
|
||
{
|
||
get => listbox.ItemSelectBackColor;
|
||
set => listbox.ItemSelectBackColor = value;
|
||
}
|
||
|
||
[DefaultValue(typeof(Color), "243, 249, 255")]
|
||
[Description("列表项选中字体颜色"), Category("SunnyUI")]
|
||
public Color ItemSelectForeColor
|
||
{
|
||
get => listbox.ItemSelectForeColor;
|
||
set => listbox.ItemSelectForeColor = value;
|
||
}
|
||
|
||
[Browsable(false)]
|
||
[DefaultValue(-1)]
|
||
public int SelectedIndex
|
||
{
|
||
get => listbox.SelectedIndex;
|
||
set => listbox.SelectedIndex = value;
|
||
}
|
||
|
||
[Browsable(false)]
|
||
[DefaultValue(null)]
|
||
public object SelectedItem
|
||
{
|
||
get => listbox.SelectedItem;
|
||
set => listbox.SelectedItem = value;
|
||
}
|
||
|
||
[Browsable(false)]
|
||
[DefaultValue(null)]
|
||
public object SelectedValue
|
||
{
|
||
get => listbox.SelectedValue;
|
||
set => listbox.SelectedValue = value;
|
||
}
|
||
|
||
private Color hoverColor = Color.FromArgb(155, 200, 255);
|
||
|
||
[DefaultValue(typeof(Color), "220, 236, 255")]
|
||
[Description("列表项鼠标移上颜色"), Category("SunnyUI")]
|
||
public Color HoverColor
|
||
{
|
||
get => hoverColor;
|
||
set
|
||
{
|
||
hoverColor = value;
|
||
listbox.HoverColor = hoverColor;
|
||
_style = UIStyle.Custom;
|
||
}
|
||
}
|
||
|
||
[DefaultValue("")]
|
||
[Description("指示要为此控件中的项显示的属性")]
|
||
[TypeConverter("System.Windows.Forms.Design.DataMemberFieldConverter, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
|
||
[Editor("System.Windows.Forms.Design.DataMemberFieldEditor, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", typeof(UITypeEditor))]
|
||
public string DisplayMember
|
||
{
|
||
get => listbox.DisplayMember;
|
||
set => listbox.DisplayMember = value;
|
||
}
|
||
|
||
[DefaultValue("")]
|
||
[Description("指示用作控件中项的实际值的属性")]
|
||
[Editor("System.Windows.Forms.Design.DataMemberFieldEditor, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", typeof(UITypeEditor))]
|
||
public string ValueMember
|
||
{
|
||
get => listbox.ValueMember;
|
||
set => listbox.ValueMember = value;
|
||
}
|
||
|
||
[DefaultValue(null)]
|
||
[RefreshProperties(RefreshProperties.Repaint)]
|
||
[AttributeProvider(typeof(IListSource))]
|
||
[Description("指示此控件将用来获取其项的列表")]
|
||
public object DataSource
|
||
{
|
||
get => listbox.DataSource;
|
||
set => listbox.DataSource = value;
|
||
}
|
||
|
||
private void Listbox_ValueMemberChanged(object sender, EventArgs e)
|
||
{
|
||
ValueMemberChanged?.Invoke(this, e);
|
||
}
|
||
|
||
private void Listbox_DisplayMemberChanged(object sender, EventArgs e)
|
||
{
|
||
DisplayMemberChanged?.Invoke(this, e);
|
||
}
|
||
|
||
private void Listbox_DataSourceChanged(object sender, EventArgs e)
|
||
{
|
||
DataSourceChanged?.Invoke(this, e);
|
||
}
|
||
|
||
public event EventHandler DataSourceChanged;
|
||
|
||
public event EventHandler DisplayMemberChanged;
|
||
|
||
public event EventHandler ValueMemberChanged;
|
||
|
||
[DefaultValue("")]
|
||
[Description("格式说明符，指示显示值的方式")]
|
||
public string FormatString
|
||
{
|
||
get => listbox.FormatString;
|
||
set => listbox.FormatString = value;
|
||
}
|
||
|
||
[Description("获取或设置指示显示值是否可以进行格式化操作。"), Category("SunnyUI")]
|
||
[DefaultValue(false)]
|
||
public bool FormattingEnabled
|
||
{
|
||
get => listbox.FormattingEnabled;
|
||
set => listbox.FormattingEnabled = value;
|
||
}
|
||
|
||
public string GetItemText(object item)
|
||
{
|
||
return listbox.GetItemText(item);
|
||
}
|
||
|
||
public string GetItemText(int index)
|
||
{
|
||
if (index < 0 || index >= Items.Count) return string.Empty;
|
||
return GetItemText(Items[index]);
|
||
}
|
||
}
|
||
} |