ANTICHAT — форум по информационной безопасности, OSINT и технологиям

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Reflection;

namespace CircuitBuilder
{
    class Element
    {
        const int DEFAULT_WIDTH = 100;
        const int DEFAULT_HEIGHT = 26;
        Image ElementImage = CircuitBuilder.Properties.Resources.Elem;

        public Element(string name, int x, int y)
        {
            this.Name = name;
            this.X = x;
            this.Y = y;
            this.Width = DEFAULT_WIDTH;
            this.Height = DEFAULT_HEIGHT;
        }

        #region Свойства

        public string Name { get; set; }
        public int X { get; set; }
        public int Y { get; set; }
        public int Width { get; set; }
        public int Height { get; set; }

        public Size Size
        {
            get { return new Size(Width, Height); }
        }

        public Point Location
        {
            get { return new Point(X, Y); }
        }

        #endregion

        #region Открытые Методы

        public void Draw(Graphics g)
        {
            g.DrawImage(ElementImage, X, Y, Width, Height);
            g.DrawString(Name, SystemFonts.DefaultFont, SystemBrushes.WindowText, new Point(X, Y + Height));
        }

        #endregion
    }
}

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

namespace CircuitBuilder
{
    public partial class Form1 : Form
    {
        List<Element> elements = new List<Element>();
        Element SelectedElement = null;
        Boolean dragging;
        Point startDragPoint;
        public Form1()
        {
            
            InitializeComponent();
        }
        #region Методы

        Element GetItemAt(int x, int y)
        {
            foreach (Element currElement in elements)
            {
                if (
                    currElement.X < x && 
                    currElement.X + currElement.Width > x && 
                    currElement.Y < y && 
                    currElement.Y + currElement.Height > y 
                    )
                    return currElement;
            }
            return null;
        }       

        #endregion

        #region События меню


        private void выходToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Close();
        }

        private void новыйToolStripMenuItem_Click(object sender, EventArgs e)
        {
            elements.Clear();
            designerPanel.Invalidate();
        }

        private void добавитьЭлементToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Element element = new Element("   Элемент " + elements.Count.ToString(), 0, 0);
            elements.Add(element);
            designerPanel.Invalidate();
        }

        private void designerPanel_Paint(object sender, PaintEventArgs e)
        {
            foreach (Element element in elements)
                element.Draw(e.Graphics);
        }

        private void designerPanel_MouseDown(object sender, MouseEventArgs e)
        {
            Element element = GetItemAt(e.X, e.Y);
            if (element != null)
            {
                SelectedElement = element;
                dragging = true;
                startDragPoint = e.Location;               
            }
        }

        private void designerPanel_MouseUp(object sender, MouseEventArgs e)
        {
            if (dragging)
            {
                dragging = false;                
                designerPanel.Invalidate();
            }

        }

        private void designerPanel_MouseMove(object sender, MouseEventArgs e)
        {
            if (dragging)
            {                
                SelectedElement.X = SelectedElement.Location.X + (e.Location.X - startDragPoint.X);
                SelectedElement.Y = SelectedElement.Location.Y + (e.Location.Y - startDragPoint.Y);
                designerPanel.Invalidate();                
                startDragPoint = e.Location;
            }
        }

        #endregion
    }
}