Verschiebbares und Größenverstellbares Control

DefaultValue(true)]

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.ComponentModel;
using System.Drawing.Drawing2D;

namespace DariusArnold
{
    public partial class MoveControl : Button
    {
        /// <summary>
        /// Neue Instanz des bewegbaren Benutzersteuerelements.
        /// </summary>
        public MoveControl()
        {
            CanMove = true;
            CanResize = true;
            SnapsToGrid = true;
            SizesToGrid = true;
            ChangeCursor = true;
            Grid = GridMode.ShowWhileMoving;
            ViewGrid = GridViewingTypes.Draw;
            CustomGridPixel = new bool[]{ false,
                                false,
                                false,
                                  true,
                                  true,
                                  true,
                                  true,
                                  true,
                                false,
                                false };
            GridColor = SystemColors.ControlDarkDark;
            GridLineWidth = 2f;
            GridDashStyle = DashStyle.Dot;
            ResizeCornerSize = new Size(5, 5);
            MinimumSize = new Size(20, 20);
            AutoSize = false;
            MarkResizeCorner = true;
            ShowValueBoxes = true;
            ResizeCornerMarkingColor = Color.Blue;
            DoubleBuffered = true;

            this.MouseDown += new MouseEventHandler(c_MouseDown);
            this.MouseUp += new MouseEventHandler(c_MouseUp);
            this.MouseMove += new MouseEventHandler(c_MouseMove);
            this.Paint += new PaintEventHandler(c_Paint);
        }

        private int x, y;
        private bool move, resize;
        private Rectangle oControl = new Rectangle();
        private Form form = null;
        private GridMode gm = GridMode.ShowNever;

        /// <summary>
        /// Sets, if control can be moved during runtime.
        /// </summary>
        [CategoryAttribute("MoveAndResize"), DescriptionAttribute("Gibt an, ob das Element zur Laufzeit verschoben werden kann."), DefaultValue(true)]
        public bool CanMove { get; set; }

        /// <summary>
        /// Sets, if control can be resized during runtime.
        /// </summary>
        [CategoryAttribute("MoveAndResize"), DescriptionAttribute("Gibt an, ob die Größe des Elements zur Laufzeit verändert werden kann."), DefaultValue(true)]
        public bool CanResize { get; set; }

        /// <summary>
        /// Sets, if the control snaps to a 10x10 px grid automaticly.
        /// </summary>
        [CategoryAttribute("Grid"), DescriptionAttribute("Gibt an, ob sich das Element automatisch an einem 10x10-Raster ausrichten soll."), DefaultValue(true)]
        public bool SnapsToGrid { get; set; }

        /// <summary>
        /// Sets, if the control's size is adapted to a 10x10 px grid automaticly.
        /// </summary>
        [CategoryAttribute("Grid"), DescriptionAttribute("Gibt an, ob die Größße des Elements automatisch an ein 10x10-Raster angepasst werden soll."), DefaultValue(true)]
        public bool SizesToGrid { get; set; }

        /// <summary>
        /// Sets whether the cursor is changed if user moves the control or is able to resize it.
        /// </summary>
        [CategoryAttribute("Darstellung"), DescriptionAttribute("Gibt an, ob sich der Cursor ändern soll, wenn das Element verschoben wird oder seine Größe verändert werden kann."), DefaultValue(true)]
        public bool ChangeCursor { get; set; }

        /// <summary>
        /// Sets, if the area to drag for resize the control is colored.
        /// </summary>
        [CategoryAttribute("Darstellung"), DescriptionAttribute("Gibt an, ob der "Angriffspunkt"" zur Größenänderung farbig hinterlegt werden soll."")

Alte URL: /snippet/verschiebbares-und-groessenverstellbares-control/3832