C#复杂的树视图设计

Question

我正在尝试使用richtextbox控件设计类似IDE(不可编辑)的程序.基本上,我需要位于RTB左侧的树视图,以便在用户单击+/-按钮时展开/折叠我的代码的某一部分.可扩展的可折叠范围定义为可以看到大括号的位置.例如在RTB中,如果我有类似的东西:

int main()
{
   if (...)
   {
       if (...)
       {
       }
   }
   else
   {
   }
}

如果我点击最顶部的花括号,它会折叠主函数内的所有内容.基本上,大括号里面包含的是折叠的东西.总而言之,我正在尝试设计一些与Visual Studio的展开/折叠代码函数非常相似的东西,除了它也使用if/else函数.

我知道括号匹配算法,我实现了一个堆栈,以了解哪些括号对匹配(行号存储在元组列表中).

我主要关注的问题是如何设计实际的树视图.我需要树视图以线性方式,其中没有节点添加到另一个上面.我不知道有任何方法可以添加展开/折叠按钮,而无需在另一个节点上实际添加子节点.

此外,除了+/-按钮和单个垂直线之外,我需要树视图节点不可编辑,不可见且不可点击.

最后,假设我满足上述要求,我需要RTB的垂直滚动事件来正确滚动树视图.也就是说,Treeview的折叠/展开部分将根据RTB上可见的代码部分进行更新.

这是我用来初始化树的代码的一部分:

public partial class LogicSimulationViewerForm : Form
{
    private List<Tuple<string,Boolean>> visibleLines = new List<Tuple<string,Boolean>>();
    private List<Tuple<int, int>> collapseRange = new List<Tuple<int, int>>();

    private void TreeInit()
    {
        TreeNode tn;
        Stack<int> openBracketLine = new Stack<int>();
        int i = 0;
        TreeLogicCode.Nodes.Clear();
        foreach (string s in rtbLogicCode.Lines)
        {
            visibleLines.Add(Tuple.Create(s, true));
            if (s == "{")
            {
                openBracketLine.Push(i);
            }
            else if (s == "}")
            {
                collapseRange.Add(Tuple.Create(openBracketLine.Pop(),i));
            }
            i++;
        }
    }

这是Designer.sc源代码,虽然我认为这不是必需的,但以防万一:

namespace DDCUI
{
    partial class LogicSimulationViewerForm
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.TreeLogicCode = new System.Windows.Forms.TreeView();
            this.labelLogicCode = new System.Windows.Forms.Label();
            this.rtbLogicCode = new System.Windows.Forms.RichTextBox();
            this.SuspendLayout();
            // 
            // TreeLogicCode
            // 
            this.TreeLogicCode.Dock = System.Windows.Forms.DockStyle.Left;
            this.TreeLogicCode.Location = new System.Drawing.Point(50, 0);
            this.TreeLogicCode.Name = "TreeLogicCode";
            this.TreeLogicCode.Scrollable = false;
            this.TreeLogicCode.Size = new System.Drawing.Size(40, 600);
            this.TreeLogicCode.TabIndex = 4;
            // 
            // labelLogicCode
            // 
            this.labelLogicCode.BackColor = System.Drawing.Color.LightGray;
            this.labelLogicCode.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.labelLogicCode.Dock = System.Windows.Forms.DockStyle.Left;
            this.labelLogicCode.ForeColor = System.Drawing.SystemColors.ControlText;
            this.labelLogicCode.Location = new System.Drawing.Point(0, 0);
            this.labelLogicCode.Margin = new System.Windows.Forms.Padding(3);
            this.labelLogicCode.Name = "labelLogicCode";
            this.labelLogicCode.Padding = new System.Windows.Forms.Padding(3);
            this.labelLogicCode.Size = new System.Drawing.Size(50, 600);
            this.labelLogicCode.TabIndex = 3;
            this.labelLogicCode.TextAlign = System.Drawing.ContentAlignment.TopRight;
            // 
            // rtbLogicCode
            // 
            this.rtbLogicCode.Dock = System.Windows.Forms.DockStyle.Fill;
            this.rtbLogicCode.Location = new System.Drawing.Point(90, 0);
            this.rtbLogicCode.Name = "rtbLogicCode";
            this.rtbLogicCode.Size = new System.Drawing.Size(510, 600);
            this.rtbLogicCode.TabIndex = 5;
            this.rtbLogicCode.Text = "";
            this.rtbLogicCode.VScroll += new System.EventHandler(this.rtbLogicCode_VScroll);
            // 
            // LogicSimulationViewerForm
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(600, 600);
            this.Controls.Add(this.rtbLogicCode);
            this.Controls.Add(this.TreeLogicCode);
            this.Controls.Add(this.labelLogicCode);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.Name = "LogicSimulationViewerForm";
            this.Text = "LogicSimulationViewerForm";
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.TreeView TreeLogicCode;
        private System.Windows.Forms.Label labelLogicCode;
        private System.Windows.Forms.RichTextBox rtbLogicCode;
    }
}

我真的很感激任何解决这个问题的指导.提前致谢.

Answer 1

您应该在这里查看Scintilla和.NET版本:http://scintillanet.codeplex.com/.

它包含解决这些问题的源代码,但老实说,我只是使用控件并将其设置为只读以解决您的编程需求.