public RoundButton()
{
Width = 65;
Height = 30;
stroke = true;
strokeColor = Color.Gray;
// grey
//inactive1 = Color.FromArgb(224, 224, 224);
//inactive2 = Color.FromArgb(224, 224, 224);
//active1 = Color.FromArgb(192, 192, 192);
//active2 = Color.FromArgb(192, 192, 192);
// blue
inactive1 = Color.FromArgb(215, 228, 242);
inactive2 = Color.FromArgb(185, 209, 234);
active1 = Color.FromArgb(135, 206, 235);
active2 = Color.FromArgb(215, 228, 242);
strokeColor = Color.FromArgb(215, 228, 242);;
radius = 4;
roundedRect = new RoundedRectangleF(Width, Height, radius);
SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer |
ControlStyles.ResizeRedraw | ControlStyles.SupportsTransparentBackColor |
ControlStyles.UserPaint, true);
BackColor = Color.Transparent;
ForeColor = Color.Black;
Font = new Font("Segoe UI", 8, FontStyle.Bold);
state = MouseState.Leave;
Transparency = false;
}
protected override void OnPaint(PaintEventArgs e)
{
#region Transparency
if (Transparency)
{
ColourHelper.MakeTransparent(this, e.Graphics);
}
#endregion
#region Drawing
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
e.Graphics.InterpolationMode = InterpolationMode.HighQualityBilinear;
e.Graphics.CompositingQuality = CompositingQuality.HighQuality;
e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
roundedRect = new RoundedRectangleF(Width, Height, radius);
e.Graphics.FillRectangle(Brushes.Transparent, ClientRectangle);
var R1 = (active1.R + inactive1.R) / 2;
var G1 = (active1.G + inactive1.G) / 2;
var B1 = (active1.B + inactive1.B) / 2;
var R2 = (active2.R + inactive2.R) / 2;
var G2 = (active2.G + inactive2.G) / 2;
var B2 = (active2.B + inactive2.B) / 2;
var rect = new Rectangle(0, 0, Width, Height);
if (Enabled)
{
if (state == MouseState.Leave)
{
using (var inactiveGB = new LinearGradientBrush(rect, inactive1, inactive2, 90f))
{
e.Graphics.FillPath(inactiveGB, roundedRect.Path);
}
}
else if (state == MouseState.Enter)
{
using (var activeGB = new LinearGradientBrush(rect, active1, active2, 90f))
{
e.Graphics.FillPath(activeGB, roundedRect.Path);
}
}
else if (state == MouseState.Down)
{
using (var downGB =
new LinearGradientBrush(rect, Color.FromArgb(R1, G1, B1), Color.FromArgb(R2, G2, B2), 90f))
{
e.Graphics.FillPath(downGB, roundedRect.Path);
}
}
if (stroke)
{
using (var pen = new Pen(strokeColor, 1))
using (var path = new RoundedRectangleF(Width - (radius > 0 ? 0 : 1), Height - (radius > 0 ? 0 : 1),
radius).Path)
{
e.Graphics.DrawPath(pen, path);
}
}
}
else
{
var linear1 = Color.FromArgb(224, 224, 224);
var linear2 = Color.FromArgb(224, 224, 224);
using (var inactiveGB = new LinearGradientBrush(rect, linear1, linear2, 90f))
{
e.Graphics.FillPath(inactiveGB, roundedRect.Path);
e.Graphics.DrawPath(new Pen(inactiveGB), roundedRect.Path);
}
}
#endregion
#region Text Drawing
using (var sf = new StringFormat
{
LineAlignment = StringAlignment.Center,
Alignment = StringAlignment.Center
})
using (Brush brush = new SolidBrush(ForeColor))
{
if (this.Image == null)
{
e.Graphics.DrawString(Text, Font, brush, ClientRectangle, sf);
}
else
{
e.Graphics.DrawString(Text, Font, brush, ClientRectangle.Width / 2 + (Image.Width / 2), ClientRectangle.Height / 2 + 1, sf);
e.Graphics.DrawImage(Image, 8, 6, Image.Width, Image.Height);
}
}
#endregion
#region Background Image Drawing
if (BackgroundImage != null)
{
e.Graphics.SmoothingMode = SmoothingMode.HighQuality;
e.Graphics.InterpolationMode = InterpolationMode.Low;
e.Graphics.CompositingQuality = CompositingQuality.HighQuality;
e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
using (var sf = new StringFormat
{
LineAlignment = StringAlignment.Center,
Alignment = StringAlignment.Center
})
using (Brush brush = new SolidBrush(ForeColor))
{
e.Graphics.DrawImage(BackgroundImage,
(roundedRect.Rect.Size.Width - BackgroundImage.Size.Width) / 2 + 1,
(roundedRect.Rect.Size.Height - BackgroundImage.Size.Height) / 2 + 1
);
}
}
#endregion
base.OnPaint(e);
}
