CAD

开发平台：
C#

PropertiesDialog.cs：源码内容
							using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Globalization;
namespace DrawTools
{
    partial class PropertiesDialog : Form
    {
        public PropertiesDialog()
        {
            InitializeComponent();
        }
        private GraphicsProperties properties;
        private const string undefined = "??";
        private const int maxWidth = 5;
        public GraphicsProperties Properties
        {
            get
            {
                return properties;
            }
            set
            {
                properties = value;
            }
        }
        private void PropertiesDialog_Load(object sender, EventArgs e)
        {
            InitControls();
            SetColor();
            SetPenWidth();
        }
        private void InitControls()
        {
            for (int i = 1; i <= maxWidth; i++)
            {
                cmbPenWidth.Items.Add(i.ToString(CultureInfo.InvariantCulture));
            }
        }
        private void SetColor()
        {
            if (properties.Color.HasValue)
                lblColor.BackColor = properties.Color.Value;
            else
                lblColor.Text = undefined;
        }
        private void SetPenWidth()
        {
            if (properties.PenWidth.HasValue)
            {
                int penWidth = properties.PenWidth.Value;
                if (penWidth < 1)
                    penWidth = 1;
                if (penWidth > maxWidth)
                    penWidth = maxWidth;
                label2.Text = penWidth.ToString(CultureInfo.InvariantCulture);
                cmbPenWidth.SelectedIndex = penWidth - 1;
            }
            else
            {
                label2.Text = undefined;
            }
        }
        private void ReadValues()
        {
            if (cmbPenWidth.Text != undefined)
            {
                properties.PenWidth = cmbPenWidth.SelectedIndex + 1;
            }
            if (lblColor.Text.Length == 0)
            {
                properties.Color = lblColor.BackColor;
            }
        }
        private void cmbPenWidth_SelectedIndexChanged(object sender, EventArgs e)
        {
            int width = cmbPenWidth.SelectedIndex + 1;
            lblPenWidth.Text = width.ToString(CultureInfo.InvariantCulture);
        }
        private void btnSelectColor_Click(object sender, EventArgs e)
        {
            ColorDialog dlg = new ColorDialog();
            dlg.Color = lblColor.BackColor;
            if (dlg.ShowDialog(this) == DialogResult.OK)
            {
                lblColor.BackColor = dlg.Color;
                lblColor.Text = "";
            }
        }
        private void btnOK_Click(object sender, EventArgs e)
        {
            ReadValues();
            this.DialogResult = DialogResult.OK;
        }
    }
}

						