bookmark-manager/RyzStudio/Windows/ThemedForms/Form.cs

namespace RyzStudio.Windows.ThemedForms
{
    using System;
    using System.ComponentModel;
    using System.Drawing;
    using System.Windows.Forms;

    /// <summary>
    /// Theme customised form
    /// </summary>
    public partial class Form : System.Windows.Forms.Form
    {
		protected Image topImage = null;
		protected Color topFillColour = Color.FromArgb(15, 15, 15);
		protected int topFillHeight = 52;

		protected Image bottomImage = null;
		protected Color bottomFillColour = Color.FromArgb(15, 15, 15);
		protected int bottomFillMargin = 19;

        /// <summary>
        /// Initializes a new instance of the Form class
        /// </summary>
        public Form()
        {
            this.InitializeComponent();

			this.BackColor = Color.FromArgb(246, 246, 246);
		}

        /// <summary>
        /// Onresize event
        /// </summary>
        /// <param name="e">Event argument</param>
        protected override void OnResize(EventArgs e)
        {
            base.OnResize(e);

            this.Invalidate();
        }

        /// <summary>
        /// OnPaint event
        /// </summary>
        /// <param name="e">Event argument</param>
        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);

			Graphics g = e.Graphics;

            Rectangle areaTop = new Rectangle(this.DisplayRectangle.Left, 0, this.DisplayRectangle.Width, topFillHeight);
            Rectangle areaBottom = new Rectangle(this.DisplayRectangle.Left, (this.DisplayRectangle.Height - bottomFillMargin), this.DisplayRectangle.Width, bottomFillMargin);

			// draw header
			if (topFillHeight > 0)
			{
				g.FillRectangle(new SolidBrush(topFillColour), areaTop);
			}

            // draw footer
			if (bottomFillMargin > 0)
			{
				g.FillRectangle(new SolidBrush(bottomFillColour), areaBottom);
			}

			// draw logo
			if (topImage != null)
			{
				g.DrawImageUnscaled(topImage, 0, 0);
			}

			if (bottomImage != null)
			{
				g.DrawImageUnscaled(bottomImage, 0, (this.DisplayRectangle.Height - bottomImage.Height - bottomFillMargin), this.DisplayRectangle.Width, bottomImage.Height);
			}
        }

		[Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
		public new Color BackColor { get => base.BackColor; set => base.BackColor = value; }

	}
}