UI系列--JcsToolList控件(类似VS2003的ToolBox)

一.引子

   这个控件是追求UI美化功能的产物.效果类似于VS2003的ToolBox,虽然程序的实现方法,功能与效率是软件追求的目标,不过,商业化的软件,缺乏美感总显得不那么专业.

二.设计时效果

三.运行时效果

四.谈谈主要的实现思路

  应该说,这个控件的实现方法与我以前的文章JCSTOOLBOX很相似,只是在布局,以及超出部分的调整上有所不同.因为控件采用完全绘制的方法实现,所以效率很高.对于每个子项的图标采用了32X32的大小.提供了子项被选中,子项变化,单击,双击等事件.

  如果哪位朋友对购买完整的源代码感兴趣,可以参看"控件源码收费表",或者发邮件给我.当然,也欢迎大家对实现方法的技术讨论.

heqiumie@tom.com

 

五.部分源代码

 

using  System;
using  System.Collections.Generic;
using  System.ComponentModel;
using  System.Drawing;
using  System.Data;
using  System.Text;
using  System.Windows.Forms;

namespace  JCSControlLibary.JcsToolList
... {
    [DefaultEvent("ItemDoubleClick")]
    public partial class JcsToolList : UserControl
    ...{
        public JcsToolList()
        ...{
            InitializeComponent();
            SetStyle(ControlStyles.AllPaintingInWmPaint, true);
            SetStyle(ControlStyles.DoubleBuffer, true);
            SetStyle(ControlStyles.UserPaint, true);
            SetStyle(ControlStyles.ResizeRedraw, true);
            this.Padding = new Padding(0, 25 + 1, 8, 7);
            _closebutton = new Rectangle(6, 4, 16, 16);
            _vScrollBar = new VScrollBar();
            _vScrollBar.Dock = DockStyle.Right;
            this.Controls.Add(_vScrollBar);
            RefreshScrollBar();
        }

        private Int32 _itemHeight = 60; //item的高
        private Int32 _categoryHeight = 22;//分类项的高
        private Int32 _itemBeginTop = 26;
        private Int32 _itemSpace = 0;//item间隔
        private const Int32 _categoryLeft = 6;//文字左侧间隔
        private const Int32 _itemleft = 6;

        private Rectangle _closebutton;
        private VScrollBar _vScrollBar;
        private JcsToolListCategoryCollection _categories = new JcsToolListCategoryCollection();
        private ImageList _imagelist;

        private JcsToolListCategory _selectedCateGory;
        private JcsToolListItem _selectedItem = null;//选择的ITEM
        private HitTestType _hittest = HitTestType.None ;

        private enum HitTestType
        ...{
            CateGray,
            Item,
            CateGrayDown,
            CateGrayUp,
            Title,
            None
        }
        public delegate void ItemChangedEventHandler(Object sender, EventArgs e);
        public event ItemChangedEventHandler ItemChanged;
        public event EventHandler ItemClick;
        public event EventHandler ItemDoubleClick;


        [DesignerSerializationVisibility(DesignerSerializationVisibility.Content),
        Category("Jcs属性"), Description("分组项的集合")]
        public JcsToolListCategoryCollection Categories
        ...{
            get
            ...{
                return _categories;
            }
            set
            ...{
                _categories = value;
            }
        }
        [Category("Jcs属性"), Description("分组项的图标集合对象")]
        public ImageList ImageList
        ...{
            get ...{ return this._imagelist; }
            set ...{ this._imagelist = value; }
        }
        [Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public JcsToolListCategory SelectedCateGory
        ...{
            get
            ...{
                return _selectedCateGory;
            }
            set
            ...{
                if (value != _selectedCateGory)
                ...{
                    if (_selectedCateGory != null)
                    ...{
                        _selectedCateGory.IsOpen = !_selectedCateGory.IsOpen;
                        //_selectedCateGory.IsShowButton = false;
                    }
                    _selectedCateGory = value;
                }
                else
                ...{
                    _selectedCateGory = null;
                }
                this.Invalidate();
            }
        }

        public JcsToolListItem SelectedItem
        ...{
            get ...{ return _selectedItem; }
            set
            ...{
                if (value != _selectedItem)
                ...{
                    _selectedItem = value;
                    if (ItemChanged != null)
                        ItemChanged(_selectedItem, new EventArgs());
                    this.Invalidate();
                }
            }
        }