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/*
KeePass Password Safe - The Open-Source Password Manager
Copyright (C) 2003-2012 Dominik Reichl <dominik.reichl@t-online.de>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;
using System.Drawing;
using System.Drawing.Drawing2D;
namespace KeePass.UI
{
public class QualityProgressBar : Control
{
private int m_nMinimum = 0, m_nMaximum = 100, m_nPosition = 0;
private ProgressBarStyle m_pbsStyle = ProgressBarStyle.Continuous;
public QualityProgressBar() : base()
{
this.DoubleBuffered = true;
}
public int Minimum
{
get { return m_nMinimum; }
set { m_nMinimum = value; this.Invalidate(); }
}
public int Maximum
{
get { return m_nMaximum; }
set { m_nMaximum = value; this.Invalidate(); }
}
public int Value
{
get { return m_nPosition; }
set { m_nPosition = value; this.Invalidate(); }
}
public ProgressBarStyle Style
{
get { return m_pbsStyle; }
set { m_pbsStyle = value; }
}
protected override void OnPaint(PaintEventArgs e)
{
Graphics g = e.Graphics;
if(g == null) { base.OnPaint(e); return; }
int nNormalizedPos = m_nPosition - m_nMinimum;
int nNormalizedMax = m_nMaximum - m_nMinimum;
Rectangle rectClient = this.ClientRectangle;
Rectangle rectDraw;
if(VisualStyleRenderer.IsSupported)
{
VisualStyleRenderer vsr = new VisualStyleRenderer(
VisualStyleElement.ProgressBar.Bar.Normal);
vsr.DrawBackground(g, rectClient);
rectDraw = vsr.GetBackgroundContentRectangle(g, rectClient);
}
else
{
g.FillRectangle(SystemBrushes.Control, rectClient);
g.DrawLine(Pens.Gray, 0, 0, rectClient.Width - 1, 0);
g.DrawLine(Pens.Gray, 0, 0, 0, rectClient.Height - 1);
g.DrawLine(Pens.White, rectClient.Width - 1, 0,
rectClient.Width - 1, rectClient.Height - 1);
g.DrawLine(Pens.White, 0, rectClient.Height - 1,
rectClient.Width - 1, rectClient.Height - 1);
rectDraw = new Rectangle(rectClient.X + 1, rectClient.Y + 1,
rectClient.Width - 2, rectClient.Height - 2);
}
Rectangle rectGradient = new Rectangle(rectDraw.X, rectDraw.Y,
rectDraw.Width, rectDraw.Height);
if((rectGradient.Width & 1) == 0) ++rectGradient.Width;
int nDrawWidth = (int)((float)rectDraw.Width * ((float)nNormalizedPos /
(float)nNormalizedMax));
Color clrStart = Color.FromArgb(255, 128, 0);
Color clrEnd = Color.FromArgb(0, 255, 0);
if(!this.Enabled)
{
clrStart = UIUtil.ColorToGrayscale(SystemColors.ControlDark);
clrEnd = UIUtil.ColorToGrayscale(SystemColors.Control);
}
bool bRtl = (this.RightToLeft == RightToLeft.Yes);
if(bRtl)
{
Color clrTemp = clrStart;
clrStart = clrEnd;
clrEnd = clrTemp;
}
using(LinearGradientBrush brush = new LinearGradientBrush(rectGradient,
clrStart, clrEnd, LinearGradientMode.Horizontal))
{
g.FillRectangle(brush, (bRtl ? (rectDraw.Width - nDrawWidth + 1) :
rectDraw.Left), rectDraw.Top, nDrawWidth, rectDraw.Height);
}
}
protected override void OnPaintBackground(PaintEventArgs pEvent)
{
// base.OnPaintBackground(pevent);
}
}
}
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