ListboxTextItem.cs :  » Game » RealmForge » CrayzEdsGui » Base » C# / CSharp Open Source

using System;

namespace CrayzEdsGui.Base{
  /// <summary>
  /// Summary description for ListboxTextItem.
  /// </summary>
  public class ListboxTextItem : ListboxItem
  {
    #region Fields
    /// <summary>
    /// Font to use for text rendering.
    /// </summary>
    protected Font font = null;

    /// <summary>
    /// Colors to use when rendering text.
    /// </summary>
    protected ColorRect textColors;
    #endregion

    #region Properties
    /// <summary>
    /// Get/Set the font used for text rendering.
    /// </summary>
    public Font Font {
      get {
        // prefer out own font
        if (font != null) {
          return font;
        }
        // try our owner window's font setting (may be null if owner uses no existant default font)
        else if (owner != null) {
          return owner.Font;
        }
        // no owner, just use the default (which may be null anyway)
        else {
          return GuiSystem.Instance.DefaultFont;
        }
      }

      set {
        font = value;
      }
    }

    /// <summary>
    /// Get/Set the text colors for this ListboxItem.
    /// </summary>
    public ColorRect TextColors 
    {
      get 
      {
        return textColors;
      }

      set 
      {
        textColors = value;
      }
    }

    #endregion

    #region Constructors

    public ListboxTextItem() :
      base(string.Empty)
    {
      textColors = new ColorRect(
        new Color(1,1,1),
        new Color(1,1,1),
        new Color(1,1,1),
        new Color(1,1,1)
        );
    }

    public ListboxTextItem(string text) :
      base(text)
    {
      textColors = new ColorRect(
        new Color(1,1,1),
        new Color(1,1,1),
        new Color(1,1,1),
        new Color(1,1,1)
        );
    }

    public ListboxTextItem(string text, int itemID, object itemData, bool itemDisabled) :
      base(text, itemID, itemData, itemDisabled)
    {
      textColors = new ColorRect(
        new Color(1,1,1),
        new Color(1,1,1),
        new Color(1,1,1),
        new Color(1,1,1)
        );
    }

    #endregion

    #region Methods
    /// <summary>
    /// Set the colors to use for the text.
    /// </summary>
    /// <param name="topLeft"></param>
    /// <param name="topRight"></param>
    /// <param name="bottomLeft"></param>
    /// <param name="bottomRight"></param>
    public void SetTextColors(Color topLeft, Color topRight, Color bottomLeft, Color bottomRight)
    {
      textColors = new ColorRect(topLeft, topRight, bottomLeft, bottomRight);
    }

    /// <summary>
    /// Set the text color to be used.
    /// </summary>
    /// <param name="color"></param>
    public void SetTextColors(Color color)
    {
      textColors = new ColorRect(color, color, color, color);
    }

    #endregion

    #region Base Class Methods

    #region Properties

    /// <summary>
    /// Return the pixel size of this ListboxItem.
    /// </summary>
    public override Size Size 
    {
      get {
        Size tmp = new Size(0,0);

        Font fnt = Font;

        if (fnt != null) {
          tmp.height  = fnt.LineSpacing;
          tmp.width  = fnt.GetTextExtent(itemText);
        }

        return tmp;
      }
    }

    #endregion

    #region Methods

    /// <summary>
    /// Perform rendering for this ListboxItem
    /// </summary>
    /// <param name="position">Vector3 object describing the upper-left corner of area that should be rendered in to for the draw operation.</param>
    /// <param name="alpha">Alpha value to be used when rendering the item (between 0.0f and 1.0f).</param>
    /// <param name="clipper">Rect object describing the clipping rectangle for the draw operation.</param>
    public override void Draw(Vector3 position, float alpha, Rect clipper)
    {
      if (selected && (selectBrushImage != null)) {
        selectBrushImage.Draw(clipper, GuiSystem.Instance.Renderer.GetZLayer(2), clipper, GetModulateAlphaColourRect(selectColors, alpha));
      }

      Font fnt = Font;

      if (fnt != null) {
        position.z = GuiSystem.Instance.Renderer.GetZLayer(3);
        fnt.DrawText(itemText, position, clipper, GetModulateAlphaColourRect(textColors, alpha));
      }
    }

    #endregion

    #endregion
  }
}