form_tree.cs

二叉树的创建与打印 二叉树的创建与打印

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

namespace BinaryTree
{
    public partial class Form_Tree : Form
    {
        TreeGraph myTreeGraph;

        public Form_Tree()
        {
            InitializeComponent();
            myTreeGraph = new TreeGraph(this.CreateGraphics());
            comboBox＿color.SelectedIndex = 0;
        }

        private void Form_Tree_Shown(object sender, EventArgs e)
        {
            myTreeGraph.Draw();
        }

        /** 按钮"上"的事件--增加两个节点之间的高度差 **/
        private void btn_DisUp_Click(object sender, EventArgs e)
        {
            myTreeGraph.IncreaseDisH();
            myTreeGraph.Draw();
        }

        /** 按钮"下"的事件--减少两个节点之间的高度差 **/
        private void btn_DisDown_Click(object sender, EventArgs e)
        {
            myTreeGraph.ReduceDisH();
            myTreeGraph.Draw();
        }

        /** 按钮"左"的事件--减少两个节点之间的宽度差 **/
        private void btn_DisLeft_Click(object sender, EventArgs e)
        {
            myTreeGraph.ReduceDisW();
            myTreeGraph.Draw();
        }

        /** 按钮"右"的事件--增加两个节点之间的宽度差 **/
        private void btn_DisRight_Click(object sender, EventArgs e)
        {
            myTreeGraph.IncreaseDisW();
            myTreeGraph.Draw();
        }


        /** 按钮"+"的事件--增加节点的半径 **/
        private void btn_Rincrese_Click(object sender, EventArgs e)
        {
            myTreeGraph.IncreaseRadius();
            myTreeGraph.Draw();
        }

        /** 按钮"-"的事件--减少节点的半径 **/
        private void btn_Rdecrese_Click(object sender, EventArgs e)
        {
            myTreeGraph.ReduceRadius();
            myTreeGraph.Draw();
        }



        /** 按钮"增加节点"的事件 **/
        private void btn_addNode_Click(object sender, EventArgs e)
        {
            int data = Convert.ToInt32(this.textBox_Key.Text);
            myTreeGraph.AddNode(data);
            myTreeGraph.Draw();
        }

        /** 按钮删除节点"的事件 **/
        private void btn_delNode_Click(object sender, EventArgs e)
        {
            int data = Convert.ToInt32(this.textBox_Key.Text);
            myTreeGraph.DelNode(data);
            myTreeGraph.Draw();
        }

        /** 按钮"删除树"的事件 **/
        private void btn_desTree_Click(object sender, EventArgs e)
        {
            myTreeGraph.DestoryTree();
            myTreeGraph.Draw();
        }

        /** 设置颜色 **/
        private void btn_fontColor_Click(object sender, EventArgs e)
        {
            colorDialog1.ShowDialog();
            Color myColor = colorDialog1.Color;
            switch (comboBox＿color.SelectedIndex)
            {
                case 0: // 字体
                    myTreeGraph.SetFontColor(myColor);
                    break;
                case 1: // 圆圈
                    myTreeGraph.SetLineColor(myColor);
                    break;
                case 2: // 背景
                    myTreeGraph.SetBackColor(myColor);
                    this.BackColor = myColor;
                    break;
                default:
                    break;
            }
            myTreeGraph.Draw();
        }

    }
}