542 lines
17 KiB
C#
542 lines
17 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: UICheckBoxGroup.cs
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* 文件说明: 多选框组
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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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* 2020-04-19: V2.2.3 增加单元
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* 2020-04-25: V2.2.4 更新主题配置类
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* 2020-07-03: V2.2.6 修正调整ItemSize无效的Bug
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* 2020-07-04: V2.2.6 可以设置初始选中值
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* 2022-06-30: V3.2.0 设置条目状态前判断是否创建
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* 2022-11-21: V3.2.9 修复未显示时切换节点文本为空的问题
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* 2023-04-19: V3.3.5 设置选择项ForeColor
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* 2023-06-27: V3.3.9 内置条目关联值由Tag改为TagString
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* 2023-11-07: V3.5.2 重写UICheckBoxGroup
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* 2023-12-04: V3.6.1 增加属性可修改图标大小
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* 2024-09-09: V3.7.0 更改计算节点位置的方法，解决问题：#IAPY94
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* 2024-11-29: V3.8.0 修复TitleTop为0时，条目显示错位的问题 #IB7STO
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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.Drawing.Design;
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using System.Windows.Forms;
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namespace Sunny.UI
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{
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/// <summary>
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/// 多选框组
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/// </summary>
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[DefaultProperty("Items")]
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[DefaultEvent("ValueChanged")]
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public class UICheckBoxGroup : UIGroupBox
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{
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/// <summary>
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/// 值切换事件
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/// </summary>
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/// <param name="sender">控件</param>
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/// <param name="index">索引</param>
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/// <param name="text">文字</param>
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/// <param name="isChecked">是否选中</param>
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public delegate void OnValueChanged(object sender, CheckBoxGroupEventArgs e);
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/// <summary>
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/// 值切换事件
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/// </summary>
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public event OnValueChanged ValueChanged;
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/// <summary>
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/// 构造函数
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/// </summary>
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public UICheckBoxGroup()
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{
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items.CountChange += Items_CountChange;
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ForeColor = UIStyles.Blue.CheckBoxForeColor;
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checkBoxColor = UIStyles.Blue.CheckBoxColor;
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hoverColor = UIStyles.Blue.ListItemHoverColor;
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}
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private Color checkBoxColor;
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private void Items_CountChange(object sender, EventArgs e)
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{
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InitRects();
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Invalidate();
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}
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/// <summary>
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/// 获取和设置条目值
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/// </summary>
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/// <param name="index"></param>
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/// <returns></returns>
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public bool this[int index]
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{
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get => GetItemCheckState(index);
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set
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{
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SetItemCheckState(index, value);
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ValueChanged?.Invoke(this, new CheckBoxGroupEventArgs(index, Items[index].ToString(), this[index], SelectedIndexes.ToArray()));
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Invalidate();
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}
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}
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private Dictionary<int, bool> CheckStates = new Dictionary<int, bool>();
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private Dictionary<int, Rectangle> CheckBoxRects = new Dictionary<int, Rectangle>();
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private int _imageSize = 16;
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[DefaultValue(16)]
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[Description("图标大小"), Category("SunnyUI")]
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[Browsable(true)]
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public int CheckBoxSize
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{
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get => _imageSize;
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set
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{
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_imageSize = Math.Max(value, 16);
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_imageSize = Math.Min(value, 64);
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Invalidate();
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}
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}
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/// <summary>
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/// 清除所有条目
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/// </summary>
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public void Clear()
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{
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Items.Clear();
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CheckStates.Clear();
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CheckBoxRects.Clear();
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Invalidate();
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ValueChanged?.Invoke(this, new CheckBoxGroupEventArgs(-1, "", false, SelectedIndexes.ToArray()));
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}
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/// <summary>
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/// 条目列表
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/// </summary>
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[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
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[Localizable(true)]
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[Editor("System.Windows.Forms.Design.ListControlStringCollectionEditor, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", typeof(UITypeEditor))]
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[MergableProperty(false)]
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[Description("获取该多选框组中项的集合"), Category("SunnyUI")]
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public UIObjectCollection Items => items;
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private readonly UIObjectCollection items = new UIObjectCollection();
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/// <summary>
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/// 设置主题样式
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/// </summary>
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/// <param name="uiColor">主题样式</param>
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public override void SetStyleColor(UIBaseStyle uiColor)
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{
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base.SetStyleColor(uiColor);
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checkBoxColor = uiColor.CheckBoxColor;
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ForeColor = uiColor.CheckBoxForeColor;
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hoverColor = uiColor.ListItemHoverColor;
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}
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private Color hoverColor;
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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("鼠标滑过填充颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "155, 200, 255")]
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public Color HoverColor
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{
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get => hoverColor;
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set
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{
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hoverColor = value;
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Invalidate();
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}
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}
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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("填充颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "80, 160, 255")]
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public Color CheckBoxColor
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{
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get => checkBoxColor;
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set
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{
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checkBoxColor = value;
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Invalidate();
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}
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}
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private void InitRects()
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{
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int startX = StartPos.X;
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int startY = TitleTop + StartPos.Y;
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for (int i = 0; i < Items.Count; i++)
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{
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string text = Items[i].ToString();
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int rowIndex = i / ColumnCount;
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int columnIndex = i % ColumnCount;
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int left = startX + ItemSize.Width * columnIndex + ColumnInterval * columnIndex;
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int top = startY + ItemSize.Height * rowIndex + RowInterval * rowIndex;
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Rectangle rect = new Rectangle(left, top, ItemSize.Width, ItemSize.Height);
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if (CheckBoxRects.NotContainsKey(i))
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CheckBoxRects.Add(i, rect);
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else
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CheckBoxRects[i] = rect;
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}
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}
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/// <summary>
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/// 重载绘图
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/// </summary>
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/// <param name="e">绘图参数</param>
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protected override void OnPaint(PaintEventArgs e)
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{
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base.OnPaint(e);
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if (TitleTop == 0 && Text.IsValid()) Text = "";
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if (Items.Count == 0) return;
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InitRects();
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if (activeIndex >= 0 && CheckBoxRects.TryGetValue(activeIndex, out Rectangle boxRect))
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{
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e.Graphics.FillRectangle(hoverColor, boxRect);
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}
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int startX = StartPos.X;
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int startY = TitleTop + StartPos.Y;
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for (int i = 0; i < Items.Count; i++)
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{
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string text = Items[i].ToString();
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int rowIndex = i / ColumnCount;
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int columnIndex = i % ColumnCount;
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int left = startX + ItemSize.Width * columnIndex + ColumnInterval * columnIndex;
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int top = startY + ItemSize.Height * rowIndex + RowInterval * rowIndex;
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Rectangle rect = new Rectangle(left, top, ItemSize.Width, ItemSize.Height);
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int ImageSize = CheckBoxSize;
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//图标
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top = rect.Top + (rect.Height - ImageSize) / 2;
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left = rect.Left + 6;
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Color color = Enabled ? checkBoxColor : foreDisableColor;
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if (this[i])
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{
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e.Graphics.FillRoundRectangle(color, new Rectangle((int)left, (int)top, ImageSize, ImageSize), 1);
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color = BackColor.IsValid() ? BackColor : Color.White;
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Point pt2 = new Point((int)(left + ImageSize * 2 / 5.0f), (int)(top + ImageSize * 3 / 4.0f) - (ImageSize.Div(10)));
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Point pt1 = new Point((int)left + 2 + ImageSize.Div(10), pt2.Y - (pt2.X - 2 - ImageSize.Div(10) - (int)left));
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Point pt3 = new Point((int)left + ImageSize - 2 - ImageSize.Div(10), pt2.Y - (ImageSize - pt2.X - 2 - ImageSize.Div(10)) - (int)left);
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PointF[] CheckMarkLine = { pt1, pt2, pt3 };
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using Pen pn = new Pen(color, 2);
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e.Graphics.SetHighQuality();
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e.Graphics.DrawLines(pn, CheckMarkLine);
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e.Graphics.SetDefaultQuality();
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}
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else
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{
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using Pen pn = new Pen(color, 1);
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e.Graphics.DrawRoundRectangle(pn, new Rectangle((int)left + 1, (int)top + 1, ImageSize - 2, ImageSize - 2), 1);
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e.Graphics.DrawRectangle(pn, new Rectangle((int)left + 2, (int)top + 2, ImageSize - 4, ImageSize - 4));
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}
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e.Graphics.DrawString(text, Font, ForeColor, rect, ContentAlignment.MiddleLeft, ImageSize + 10, 0);
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}
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}
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int activeIndex = -1;
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protected override void OnMouseMove(MouseEventArgs e)
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{
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base.OnMouseMove(e);
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int index = -1;
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foreach (var item in CheckBoxRects)
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{
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if (e.Location.InRect(item.Value))
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{
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index = item.Key;
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break;
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}
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}
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if (activeIndex != index)
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{
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activeIndex = index;
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Invalidate();
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}
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}
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protected override void OnMouseLeave(EventArgs e)
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{
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base.OnMouseLeave(e);
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activeIndex = -1;
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Invalidate();
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}
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protected override void OnMouseClick(MouseEventArgs e)
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{
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base.OnMouseClick(e);
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foreach (var pair in CheckBoxRects)
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{
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if (e.Location.InRect(pair.Value) && pair.Key >= 0 && pair.Key < items.Count)
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{
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this[pair.Key] = !this[pair.Key];
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Invalidate();
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}
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}
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}
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/// <summary>
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/// 选中状态列表
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/// </summary>
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[Browsable(false)]
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public List<int> SelectedIndexes
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{
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get
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{
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List<int> indexes = new List<int>();
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for (int i = 0; i < Items.Count; i++)
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{
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if (this[i]) indexes.Add(i);
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}
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return indexes;
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}
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set
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{
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for (int i = 0; i < Items.Count; i++)
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{
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SetItemCheckState(i, false);
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}
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foreach (int i in value)
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{
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if (i >= 0 && i < Items.Count)
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{
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SetItemCheckState(i, true);
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}
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}
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ValueChanged?.Invoke(this, new CheckBoxGroupEventArgs(-1, "", false, SelectedIndexes.ToArray()));
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Invalidate();
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}
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}
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/// <summary>
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/// 设置条目状态
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/// </summary>
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/// <param name="index">索引</param>
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/// <param name="isChecked">是否选中</param>
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private void SetItemCheckState(int index, bool isChecked)
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{
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if (index >= 0 && index < Items.Count && CheckStates.NotContainsKey(index))
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{
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CheckStates.Add(index, isChecked);
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}
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CheckStates[index] = isChecked;
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}
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/// <summary>
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/// 获取条目状态
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/// </summary>
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/// <param name="index">索引</param>
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/// <returns>是否选中</returns>
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private bool GetItemCheckState(int index)
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{
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if (index >= 0 && index < items.Count && CheckStates.ContainsKey(index))
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return CheckStates[index];
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return false;
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}
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/// <summary>
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/// 所有选中条目列表
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/// </summary>
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[Browsable(false)]
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public List<object> SelectedItems
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{
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get
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{
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List<object> objects = new List<object>();
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for (int i = 0; i < Items.Count; i++)
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{
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if (this[i]) objects.Add(Items[i]);
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}
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return objects;
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}
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}
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private int columnCount = 1;
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/// <summary>
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/// 显示列的个数
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/// </summary>
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[DefaultValue(1)]
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[Description("显示列的个数"), Category("SunnyUI")]
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public int ColumnCount
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{
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get => columnCount;
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set
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{
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columnCount = value;
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InitRects();
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Invalidate();
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}
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}
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private Size _itemSize = new Size(150, 29);
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/// <summary>
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/// 显示项的大小
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/// </summary>
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[DefaultValue(typeof(Size), "150, 29")]
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[Description("显示项的大小"), Category("SunnyUI")]
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public Size ItemSize
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{
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get => _itemSize;
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set
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{
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_itemSize = value;
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InitRects();
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Invalidate();
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}
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}
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private Point startPos = new Point(12, 12);
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/// <summary>
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/// 显示项的起始位置
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/// </summary>
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[DefaultValue(typeof(Point), "12, 12")]
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[Description("显示项的起始位置"), Category("SunnyUI")]
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public Point StartPos
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{
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get => startPos;
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set
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{
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startPos = value;
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InitRects();
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Invalidate();
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}
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}
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private int columnInterval = 6;
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/// <summary>
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/// 显示项列之间的间隔
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/// </summary>
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[DefaultValue(6)]
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[Description("显示项列之间的间隔"), Category("SunnyUI")]
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public int ColumnInterval
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{
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get => columnInterval;
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set
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{
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columnInterval = value;
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InitRects();
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Invalidate();
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}
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}
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private int rowInterval = 2;
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/// <summary>
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/// 显示项行之间的间隔
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/// </summary>
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[DefaultValue(2)]
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[Description("显示项行之间的间隔"), Category("SunnyUI")]
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public int RowInterval
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{
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get => rowInterval;
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set
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{
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rowInterval = value;
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InitRects();
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Invalidate();
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}
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}
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/// <summary>
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/// 全部选择
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/// </summary>
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public void SelectAll()
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{
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for (int i = 0; i < Items.Count; i++)
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{
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SetItemCheckState(i, true);
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}
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ValueChanged?.Invoke(this, new CheckBoxGroupEventArgs(-1, "", false, SelectedIndexes.ToArray()));
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Invalidate();
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}
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/// <summary>
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/// 全部不选
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/// </summary>
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public void UnSelectAll()
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{
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for (int i = 0; i < Items.Count; i++)
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{
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SetItemCheckState(i, false);
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}
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ValueChanged?.Invoke(this, new CheckBoxGroupEventArgs(-1, "", false, SelectedIndexes.ToArray()));
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Invalidate();
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}
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/// <summary>
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/// 反转选择
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/// </summary>
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public void ReverseSelected()
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{
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for (int i = 0; i < Items.Count; i++)
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{
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SetItemCheckState(i, !this[i]);
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}
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ValueChanged?.Invoke(this, new CheckBoxGroupEventArgs(-1, "", false, SelectedIndexes.ToArray()));
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Invalidate();
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}
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}
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public class CheckBoxGroupEventArgs : EventArgs
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{
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public int Index { get; set; }
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public string Text { get; set; }
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public bool Checked { get; set; }
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public int[] SelectedIndexes { get; set; }
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public CheckBoxGroupEventArgs(int index, string text, bool isChecked, int[] indexes)
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{
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Index = index;
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Text = text;
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Checked = isChecked;
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SelectedIndexes = indexes;
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}
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}
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} |