RenderControl.cs

// Copyright (c) 2010-2014 SharpDX - Alexandre Mutel
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System.Drawing;
using System.Windows.Forms;

namespace SharpDX.Windows
{
    /// <summary>
    /// A Renderable UserControl.
    /// </summary>
    public class RenderControl : UserControl
    {
        private Font fontForDesignMode;

        /// <summary>
        /// Initializes a new instance of the <see cref="RenderForm"/> class.
        /// </summary>
        public RenderControl()
        {
            SetStyle( ControlStyles.AllPaintingInWmPaint | ControlStyles.Opaque | ControlStyles.UserPaint, true );
            UpdateStyles();
        }

        /// <summary>
        /// Paints the background of the control.
        /// </summary>
        /// <param name="e">A <see cref="T:System.Windows.Forms.PaintEventArgs"/> that contains the event data.</param>
        protected override void OnPaintBackground(PaintEventArgs e)
        {
            if (DesignMode)
                base.OnPaintBackground(e);
        }

        /// <summary>
        /// Raises the <see cref="E:System.Windows.Forms.Control.Paint"/> event.
        /// </summary>
        /// <param name="e">A <see cref="T:System.Windows.Forms.PaintEventArgs"/> that contains the event data.</param>
        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            if (DesignMode)
            {
                if (fontForDesignMode == null)
                    fontForDesignMode = new Font("Calibri", 24, FontStyle.Regular);

                e.Graphics.Clear(System.Drawing.Color.WhiteSmoke);
                string text = "SharpDX RenderControl";
                var sizeText = e.Graphics.MeasureString(text, fontForDesignMode);

                e.Graphics.DrawString(text, fontForDesignMode, new SolidBrush(System.Drawing.Color.Black), (Width - sizeText.Width) / 2, (Height - sizeText.Height) / 2);
            }
        }
    }
}