// gets a preview image of the style
public Image GetPreview(bool forceUpdate)
{
if (_preview == null || forceUpdate)
{
// draw style preview
Bitmap bmp = new Bitmap(150, 105);
StringFormat sf = StringFormat.GenericTypographic;
using (Graphics g = Graphics.FromImage(bmp))
{
// highest quality we can get
g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
g.SmoothingMode = SmoothingMode.HighQuality;
// white background
Rectangle rc = new Rectangle(0, 0, bmp.Width, bmp.Height);
g.FillRectangle(Brushes.White, rc);
// content
//rc.Inflate(-3, -3);
rc.Height = 30;
int height = ReportHeader.Render(g, Name, rc);//"Title", rc);
rc.Offset(0, height - 1);
height = PageHeader.Render(g, "Page Header", rc);
rc.Offset(0, height - 1);
height = GroupHeader.Render(g, "Group Header", rc);
rc.Offset(0, height - 1);
height = Detail.Render(g, " Detail", rc);
rc.Offset(0, height - 1);
using (Brush br = new SolidBrush(Detail.AlternateColor))
{
g.FillRectangle(br, rc);
}
}
// draw style preview into template
Bitmap bmpTemplate = StyleSelector.BitmapFromStream("styleTemplate.bmp", Color.Red);
using (Graphics g = Graphics.FromImage(bmpTemplate))
{
Rectangle rc = new Rectangle(0, 71, bmp.Width, bmp.Height);
rc.Offset(+2, +2);
g.FillRectangle(Brushes.DarkGray, rc);
rc.Offset(-2, -2);
g.DrawImageUnscaled(bmp, rc);
g.DrawRectangle(Pens.Black, rc);
}
// save image for next time
_preview = bmpTemplate;
}
// return the value that was asked for
return(_preview);
}
private void NewPage(object previousRow, object row)
{
if (previousRow != null && PageFooter != null)
{
PageFooter.Render(previousRow, renderEngine, xOffset, PageLength - PageFooter.Height - BottomMargin, DefaultStyle);
}
renderEngine.NewPage();
yOffset = TopMargin;
pagenumber++;
if (previousRow == null && ReportHeader != null)
{
double growth = ReportHeader.Render(row, renderEngine, xOffset, yOffset, DefaultStyle);
yOffset += ReportHeader.Height + growth;
}
if (PageHeader != null)
{
double growth = PageHeader.Render(row, renderEngine, xOffset, yOffset, DefaultStyle);
yOffset += PageHeader.Height + growth;
}
if (ShowGrid)
{
Pen gridPen = new Pen(Color.LightGray, 0.5f);
for (int i = 0; i < PrintableAreaWidth; i += 25)
{
ReportObjectLine l = new ReportObjectLine()
{
XLeft = i, XRight = i, YTop = 0, YBottom = PrintableAreaLength, Pen = gridPen
};
l.Render(null, renderEngine, xOffset, yOffset, DefaultStyle, null);
}
for (int i = 0; i < PrintableAreaLength; i += 25)
{
ReportObjectLine l = new ReportObjectLine()
{
XLeft = 0, XRight = PrintableAreaWidth, YTop = i, YBottom = i, Pen = gridPen
};
l.Render(null, renderEngine, xOffset, yOffset, DefaultStyle, null);
}
}
}