protected override void OnPaint(PaintEventArgs e)
{
Graphics g = e.Graphics;
if (FReport != null && FReport.Pages.Count > 0 && FReport.Pages[0] is ReportPage)
{
ReportPage page = FReport.Pages[0] as ReportPage;
float zoom = FZoom;
if (FullPagePreview)
{
float pageWidth = page.PaperWidth * Units.Millimeters;
float pageHeight = page.PaperHeight * Units.Millimeters;
zoom = Math.Min((Width - 20) / pageWidth, (Height - 20) / pageHeight);
}
FRPaintEventArgs args = new FRPaintEventArgs(g, zoom, zoom, FReport.GraphicCache);
g.TranslateTransform(10, 10);
page.Draw(args);
g.TranslateTransform(-10, -10);
}
// draw control frame
using (Pen p = new Pen(Color.FromArgb(127, 157, 185)))
{
g.DrawRectangle(p, 0, 0, Width - 1, Height - 1);
}
}
private void DrawPages(Graphics g)
{
if (Disabled)
{
return;
}
// draw visible pages
int firstVisible = PreviewPages.FindFirstVisiblePage(Offset.Y);
int lastVisible = PreviewPages.FindLastVisiblePage(Offset.Y + ClientSize.Height);
for (int i = firstVisible; i <= lastVisible; i++)
{
Rectangle pageBounds = PreviewPages.GetPageBounds(i);
pageBounds.Offset(-Offset.X, -Offset.Y);
ReportPage page = PreparedPages.GetCachedPage(i);
// draw shadow around page
ShadowPaintInfo pi = new ShadowPaintInfo();
pi.Graphics = g;
pi.Rectangle = new Rectangle(pageBounds.Left - 4, pageBounds.Top - 4, pageBounds.Width + 4, pageBounds.Height + 4);
pi.Size = 5;
ShadowPainter.Paint2(pi);
// shift the origin because page.Draw draws at 0, 0
g.TranslateTransform((int)pageBounds.Left, (int)pageBounds.Top);
FRPaintEventArgs e = new FRPaintEventArgs(g, Zoom, Zoom, GraphicCache);
// draw page
page.Draw(e);
// draw search highlight
if (SearchInfo != null && SearchInfo.Visible && SearchInfo.PageNo == i + 1)
{
page.DrawSearchHighlight(e, SearchInfo.ObjNo, SearchInfo.Ranges[SearchInfo.RangeNo]);
}
g.ResetTransform();
// draw border around active page
if (i == PageNo - 1)
{
Pen borderPen = GraphicCache.GetPen(Preview.ActivePageBorderColor, 2, DashStyle.Solid);
pageBounds.Inflate(-1, -1);
g.DrawRectangle(borderPen, pageBounds);
}
}
}
/// <inheritdoc/>
protected override void ExportPage(int pageNo)
{
ReportPage page = GetPage(pageNo);
float zoomX = ResolutionX / 96f;
float zoomY = ResolutionY / 96f;
int width = (int)(page.PaperWidth * Units.Millimeters * zoomX);
int height = (int)(page.PaperHeight * Units.Millimeters * zoomY);
int suffixDigits = Pages[Pages.Length - 1].ToString().Length;
string fileSuffix = FFirstPage ? "" : (pageNo + 1).ToString("".PadLeft(suffixDigits, '0'));
System.Drawing.Image image = null;
if (SeparateFiles || IsMultiFrameTiff)
{
image = CreateImage(width, height, fileSuffix);
if (IsMultiFrameTiff && FMasterTiffImage == null)
{
FMasterTiffImage = image;
}
}
else
{
image = FBigImage;
}
using (Graphics g = Graphics.FromImage(image))
{
if (image == FBigImage)
{
g.TranslateTransform(0, FCurOriginY);
}
g.ScaleTransform(1, zoomY / zoomX);
page.Draw(new FRPaintEventArgs(g, zoomX, zoomX, Report.GraphicCache));
}
if (SeparateFiles || IsMultiFrameTiff)
{
SaveImage(image, fileSuffix);
}
page.Dispose();
FCurOriginY += height;
FFirstPage = false;
}
