public override void Initialize(PaintEventArgs e)
{
base.Initialize(e);
PaintHelper.SetHighQualityRender(e.Graphics);
e.Graphics.SmoothingMode = SmoothingMode.Default;
}
protected override void OnPaint(PaintEventArgs e)
{
PaintBackground(e);
PaintHelper.SetHighQualityRender(e.Graphics);
if (Pages == null)
{
BeginInvoke(new MethodInvoker(CalculatePageInfo));
}
else if (Pages.Length == 0 || ExceptionPrinting)
{
SolidBrush brushText = new SolidBrush(ForeColor);
string msg;
if (this.ExceptionPrinting)
{
msg = Lang._("Exception Occurs");
}
else
{
msg = Lang._("No Pages");
}
e.Graphics.DrawString(msg, Font, brushText, ClientRectangle, PaintHelper.SFCenter);
brushText.Dispose();
}
else
{
PaintPages(e);
}
}
protected override void OnPaint(PaintEventArgs e)
{
//base.OnPaint(e);
InvokePaintBackground(this, e);
Rectangle rectTitle = ClientRectangle;
rectTitle.Height = FoldingButtonRect.Height;
Size sizeText = Size.Ceiling(e.Graphics.MeasureString(Text, Font));
rectTitle.Height = Math.Max(rectTitle.Height, sizeText.Height);
Image image = Folded ? Properties.Resources.folding_expand : Properties.Resources.folding_collapse;
PaintHelper.DrawImageInRange(e.Graphics, image, FoldingButtonRect);
rectTitle.X += FoldingButtonRect.Width;
rectTitle.Width -= FoldingButtonRect.Width;
e.Graphics.DrawString(Text, Font, new SolidBrush(ForeColor), rectTitle, PaintHelper.SFLeft);
rectTitle.X += sizeText.Width;
rectTitle.Width -= sizeText.Width;
PaintHelper.SetHighQualityRender(e.Graphics);
e.Graphics.ExcludeClip(new Rectangle(ClientRectangle.Left, ClientRectangle.Top, ClientRectangle.Width - rectTitle.Width, rectTitle.Height));
Rectangle rectBorder = new Rectangle(0, rectTitle.Y + rectTitle.Height / 2, ClientSize.Width, ClientSize.Height - rectTitle.Height / 2);
Pen penLine = new Pen(PaintHelper.GetDarkColor(BackColor));
if (Folded)
{
e.Graphics.DrawLine(penLine, rectBorder.X, rectBorder.Y, rectBorder.Right, rectBorder.Y);
}
else
{
GraphicsPath path = PaintHelper.GetRoundRectangle(rectBorder, 6);
e.Graphics.DrawPath(penLine, path);
path.Dispose();
}
if (Focused)
{
ControlPaint.DrawFocusRectangle(e.Graphics, new Rectangle(0, 0, ClientSize.Width, ClientSize.Height));
}
}
void ChartBox_Paint(object sender, PaintEventArgs e)
{
Point pt = Point.Empty;
if (HorizontalScroll.Enabled)
{
pt.X = HorizontalScroll.Value;
}
if (VerticalScroll.Enabled)
{
pt.Y = VerticalScroll.Value;
}
if (Zoom != 1 && Zoom > 0)
{
pt.X = (int)Math.Round(pt.X / Zoom);
pt.Y = (int)Math.Round(pt.Y / Zoom);
}
if (ChartBox.Margin.Left != 0)
{
pt.X -= ChartBox.Margin.Left;
}
if (ChartBox.Margin.Top != 0)
{
pt.Y -= ChartBox.Margin.Top;
}
if (!CustomDoubleBuffer || BmpBuffer == null)
{
ChartPaintEventArgs cpe;
if (CustomDoubleBuffer)
{
BmpBuffer = new Bitmap(ChartBox.Width, ChartBox.Height);
Graphics grf = Graphics.FromImage(BmpBuffer);
cpe = new ChartPaintEventArgs(grf, ChartBox.ClientRectangle);
}
else
{
cpe = new ChartPaintEventArgs(e);
}
cpe.LogicViewPort = ChartBox.ClientRectangle;
cpe.BackBrush = new SolidBrush(ChartBackColor);
cpe.ForeBrush = new SolidBrush(ChartForeColor);
cpe.Font = ChartBox.DefaultChartFont;
if (Zoom != 1.0f)
{
cpe.Graphics.ScaleTransform(Zoom, Zoom);
}
if (HighQualityRender)
{
PaintHelper.SetHighQualityRender(cpe.Graphics);
}
if (!pt.IsEmpty)
{
cpe.Graphics.TranslateTransform(-pt.X, -pt.Y);
Rectangle rect = cpe.LogicViewPort;
rect.Offset(pt.X, pt.Y);
cpe.LogicViewPort = rect;
}
// Draw Chart
DrawChart(cpe);
if (CustomDoubleBuffer)
{
cpe.Graphics.Dispose();
}
}
if (CustomDoubleBuffer && BmpBuffer != null)
{
e.Graphics.DrawImage(BmpBuffer,
new Rectangle(0, 0, ChartBox.Width, ChartBox.Height),
0, 0, BmpBuffer.Width, BmpBuffer.Height, GraphicsUnit.Pixel);
}
if (CustomDoubleBuffer)
{
//e.Graphics.TranslateTransform(-pt.X, -pt.Y);
//e.Graphics.ScaleTransform(Zoom, Zoom);
PaintHelper.SetHighQualityRender(e.Graphics);
}
foreach (ChartLayer layer in Layers)
{
layer.DrawRealTime(e);
}
OnAfterPaint(e);
}