Jun 15

Written by: Angelo
6/15/2008 1:39 PM

I've developed this control some times ago, to replace the "standard" control, in order to have the same background color, or forecolor, that changes with the Krypton palette...
It's very far to be a good control, but I gave to my app an update without rewriting the UI.

hope it helps, this is the code:


using System;
using System.ComponentModel;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Runtime.InteropServices;
using ComponentFactory.Krypton.Toolkit;

namespace AC.ExtendedRenderer.Toolkit
{
[System.Drawing.ToolboxBitmapAttribute(typeof(System.Windows.Forms.GroupBox))]
public class KryptonGroupBox : GroupBox
{
private IPalette _palette;
private PaletteRedirect _paletteRedirect;

#region ... Properties...
Color _bgColor = Color.Gray;

Boolean _darkerColors = false;
[Browsable(true), Category("Appearance-Extended")]
[DefaultValue("false")]
public Boolean DarkerColors
{
get { return _darkerColors; }
set { _darkerColors = value; Invalidate(); }
}
#endregion

#region ... Constructor ...
public KryptonGroupBox()
{
SetStyle(ControlStyles.UserPaint, true);
SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
UpdateStyles();

// add Palette Handler
if (_palette != null)
_palette.PalettePaint += new EventHandler(OnPalettePaint);

KryptonManager.GlobalPaletteChanged += new EventHandler(OnGlobalPaletteChanged);

_palette = KryptonManager.CurrentGlobalPalette;
_paletteRedirect = new PaletteRedirect(_palette);

InitColors();


}
#endregion

private void InitColors()
{
//set BackGroudColor
_bgColor = _palette.ColorTable.ToolStripGradientMiddle;

//if darker ..., reset background
if (_darkerColors) _bgColor = _palette.ColorTable.MenuStripGradientEnd;

//set ForeColor
this.ForeColor = _palette.ColorTable.StatusStripText;

//reset FlatStyle
if (this.FlatStyle == FlatStyle.System) this.FlatStyle = FlatStyle.Standard;

}

protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
}
protected override void OnPaintBackground(PaintEventArgs e)
{
//paint deafult
base.OnPaintBackground(e);

//call to reset colors
InitColors();
//paint BackGround
e.Graphics.FillRectangle(new SolidBrush(_bgColor), e.ClipRectangle);
}

#region ... Krypton ...

//Kripton Palette Events
private void OnGlobalPaletteChanged(object sender, EventArgs e)
{
if (_palette != null)
_palette.PalettePaint -= new EventHandler(OnPalettePaint);

_palette = KryptonManager.CurrentGlobalPalette;
_paletteRedirect.Target = _palette;

if (_palette != null)
{
_palette.PalettePaint += new EventHandler(OnPalettePaint);
//repaint with new values

InitColors();

}

Invalidate();
}

//Kripton Palette Events
private void OnPalettePaint(object sender, PaletteLayoutEventArgs e)
{
Invalidate();
}
#endregion
}
}

(This is the code and a test app)

Angel

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