/*
* PRIVATE
*/
protected override void OnPaintBackground(PaintEventArgs e)
{
base.OnPaintBackground(e);
if (this.Width > 1 && this.Height > 1)
{
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
int tmpShadowOffSet = GetShadowOffSet();
int tmpCornerRadius = GetCornerRadius();
//Draw the Shadow
if (DrawShadow)
{
if (tmpCornerRadius > 0)
{
Rectangle rectShadow = new Rectangle(tmpShadowOffSet, tmpShadowOffSet, this.Width - tmpShadowOffSet - 1, this.Height - tmpShadowOffSet - 1);
GraphicsPath graphPathShadow = RichPanelHelper.GetRoundPath(rectShadow, tmpCornerRadius, this.roundCornerType);
using (PathGradientBrush gBrush = new PathGradientBrush(graphPathShadow))
{
gBrush.WrapMode = WrapMode.Clamp;
ColorBlend colorBlend = new ColorBlend(3);
colorBlend.Colors = new Color[] { Color.Transparent, Color.FromArgb(180, Color.DimGray), Color.FromArgb(180, Color.DimGray) };
colorBlend.Positions = new float[] { 0f, .1f, 1f };
gBrush.InterpolationColors = colorBlend;
e.Graphics.FillPath(gBrush, graphPathShadow);
}
}
}
//Draw the background
Rectangle rect = new Rectangle(0, 0, this.Width - tmpShadowOffSet - 1, this.Height - tmpShadowOffSet - 1);
GraphicsPath graphPath = RichPanelHelper.GetRoundPath(rect, tmpCornerRadius, this.roundCornerType);
if (this.FillStyle == RichPanelHelper.FillStyle.Gradient)
{
LinearGradientBrush brush = new LinearGradientBrush(rect, this.BackgroundColor1, this.BackgroundColor2, this.GradientStyle);
e.Graphics.FillPath(brush, graphPath);
}
else if (this.FillStyle == RichPanelHelper.FillStyle.Solid)
{
SolidBrush brush = new SolidBrush(this.BackgroundColor1);
e.Graphics.FillPath(brush, graphPath);
}
else
{
SolidBrush brush = new SolidBrush(this.BackColor);
e.Graphics.FillPath(brush, graphPath);
}
//Draw the border
if (DrawBorder)
{
e.Graphics.DrawPath(new Pen(Color.FromArgb(180, this.borderColor), borderWidth), graphPath);
}
}
}
private Rectangle GetExpanderCoordinates(Graphics graphics)
{
Bitmap bitmap = GetExpanderBitmap();
int headerHeight = GetHeaderHeight(graphics);
int x = (int)RichPanelHelper.GetXPos(RichPanelHelper.Align.Right, this.Width - GetShadowOffSet(), bitmap.Width, 5);
int y = (headerHeight - bitmap.Height) / 2;
return(new Rectangle(x, y, bitmap.Width, bitmap.Height));
}
private void PaintHeader(Graphics graphics)
{
if (!DrawHeader)
{
return;
}
this.headerHeight = GetHeaderHeight(graphics);
int tmpShadowOffSet = GetShadowOffSet();
int tmpCornerRadius = GetCornerRadius();
float margin = 3 + tmpCornerRadius / 4;
List <float> separatorsXs = new List <float>();
separatorsXs.Add(margin + 5);
separatorsXs.Add(this.Width - tmpShadowOffSet - 7 - tmpCornerRadius / 4);
//Text
if (!string.IsNullOrEmpty(this.HeaderText))
{
float w = this.Width;
if (this.headerTextAlign != RichPanelHelper.Align.Center)
{
w -= tmpShadowOffSet;
}
SizeF size = graphics.MeasureString(this.HeaderText, this.HeaderFont);
//Fill the header background
if (HeaderHasBackColor)
{
Rectangle rect = new Rectangle(0, 0, this.Width - tmpShadowOffSet - 1, headerHeight);
GraphicsPath graphPath = RichPanelHelper.GetRoundPath(rect, tmpCornerRadius, this.roundCornerType);
SolidBrush brush = new SolidBrush(this.HeaderBackColor);
graphics.FillPath(brush, graphPath);
}
//Draw the text
float x = RichPanelHelper.GetXPos(this.HeaderTextAlign, w, size.Width, margin);
using (Brush brush = new SolidBrush(this.HeaderTextColor))
{
graphics.DrawString(this.HeaderText, this.HeaderFont, brush, x, (headerHeight - size.Height) / 2);
}
//Update separator position
if (this.headerTextAlign == RichPanelHelper.Align.Left)
{
separatorsXs[0] = size.Width + 15;
}
else if (this.headerTextAlign == RichPanelHelper.Align.Center)
{
separatorsXs.Insert(1, x - 10);
separatorsXs.Insert(2, x + size.Width + 10);
}
else if (this.headerTextAlign == RichPanelHelper.Align.Right)
{
separatorsXs[1] = w - size.Width - 15 - tmpCornerRadius / 4;
}
}
//Image
if (this.headerIcon != null)
{
float w = this.Width;
if (this.headerIconAlign != RichPanelHelper.Align.Center)
{
w -= tmpShadowOffSet;
}
//Draw the icon
float x = RichPanelHelper.GetXPos(this.HeaderIconAlign, w, this.HeaderIcon.Width, margin);
Point point = new Point((int)x, (headerHeight - this.HeaderIcon.Height) / 2);
graphics.DrawImage(new Bitmap(this.HeaderIcon), point);
//Update separator position
if (this.HeaderIconAlign == RichPanelHelper.Align.Left)
{
separatorsXs[0] = x + this.headerIcon.Width + 10;
}
else if (this.HeaderIconAlign == RichPanelHelper.Align.Center)
{
separatorsXs.Insert(1, x - 10);
separatorsXs.Insert(2, x + this.headerIcon.Width + 10);
}
else if (this.HeaderIconAlign == RichPanelHelper.Align.Right)
{
separatorsXs[1] = w - this.headerIcon.Width - 10 - tmpCornerRadius / 4;
}
}
//Separator
if (this.SeparatorPos != SeparatorPosition.None)
{
Pen pen = new Pen(this.SeparatorColor, SeparatorWidth);
if (this.SeparatorPos == SeparatorPosition.Bottom)
{
graphics.DrawLine(pen,
this.BorderWidth, headerHeight,
this.Width - tmpShadowOffSet - this.BorderWidth, headerHeight);
}
else
{
float sepY = (headerHeight - this.SeparatorWidth) / 2;
for (int i = 0; i < separatorsXs.Count; i += 2)
{
graphics.DrawLine(pen,
new PointF(separatorsXs[i], sepY),
new PointF(separatorsXs[i + 1], sepY));
}
}
}
//Expander
if (this.Expander && this.shadowOffSet == 0)
{
Bitmap bitmap = GetExpanderBitmap();
this.expanderRectangle = GetExpanderCoordinates(graphics);
graphics.DrawImage(bitmap, this.expanderRectangle.X, this.expanderRectangle.Y);
}
}