public void UpdatePages()
{
PreviewPages.Clear();
if (FLayoutLocked)
{
return;
}
for (int i = 0; i < PreparedPages.Count; i++)
{
SizeF pageSize = PreparedPages.GetPageSize(i);
PreviewPages.AddPage(pageSize, Zoom);
}
PreviewPages.LayoutPages(Width - SystemInformation.VerticalScrollBarWidth);
FLocked = false;
UpdatePageNumbers();
Size maxSize = PreviewPages.GetMaxSize();
if (maxSize.Width > Width)
{
maxSize.Height += SystemInformation.HorizontalScrollBarHeight;
}
if (maxSize.Height > Height)
{
maxSize.Width += SystemInformation.VerticalScrollBarWidth;
}
AutoScrollMinSize = maxSize;
SetPageNo(PageNo, false);
Refresh();
}
private void FindPageNo()
{
int pageNo = PreviewPages.FindPage(Offset.Y) + 1;
if (!PreviewPages.IsSameRow(pageNo - 1, PageNo - 1))
{
SetPageNo(pageNo, false);
}
}
public void PositionTo(int pageNo, PointF point)
{
if (Disabled)
{
return;
}
RectangleF pageBounds = PreviewPages.GetPageBounds(pageNo - 1);
ReportPage page = PreparedPages.GetCachedPage(pageNo - 1);
Offset = new Point((int)Math.Round(pageBounds.Left + (page.LeftMargin * Units.Millimeters + point.X) * Zoom),
(int)Math.Round(pageBounds.Top + (page.TopMargin * Units.Millimeters + point.Y) * Zoom) - 10);
SetPageNo(pageNo, false);
}
public PreviewWorkspace(PreviewTab previewTab)
{
FPreviewTab = previewTab;
FPreviewPages = new PreviewPages();
curHand = ResourceLoader.GetCursor("Hand.cur");
curHandMove = ResourceLoader.GetCursor("HandMove.cur");
//SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer, true);
Cursor = curHand;
Dock = DockStyle.Fill;
AutoScroll = true;
ColorSchemeStyle = eDotNetBarStyle.Office2007;
FastScrolling = Preview.FastScrolling;
FLayoutLocked = true;
}
public void RefreshReport()
{
FLocked = true;
try
{
PreviewPages.Clear();
PreparedPages.ClearPageCache();
Report.InternalRefresh();
}
finally
{
FLocked = false;
}
UpdatePages();
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
if (Disabled)
{
return;
}
int pageNo = PreviewPages.FindPage(Offset.X + e.X, Offset.Y + e.Y);
ReportPage page = PreparedPages.GetCachedPage(pageNo);
Rectangle pageBounds = PreviewPages.GetPageBounds(pageNo);
SetPageNo(pageNo + 1, false);
Cursor = curHandMove;
FLastMousePoint = e.Location;
// reset page's NeedRefresh flag
page.NeedRefresh = false;
page.NeedModify = false;
// generate mousedown event
if (FActiveObject != null)
{
FActiveObject.OnMouseDown(new MouseEventArgs(e.Button, e.Clicks,
(int)Math.Round((Offset.X + e.X - pageBounds.X) / Zoom - page.LeftMargin * Units.Millimeters - FActiveObject.AbsLeft),
(int)Math.Round((Offset.Y + e.Y - pageBounds.Y) / Zoom - page.TopMargin * Units.Millimeters - FActiveObject.AbsTop),
e.Delta));
}
// reset search highlight
if (SearchInfo != null && SearchInfo.Visible)
{
SearchInfo.Visible = false;
Refresh();
}
// modify and refresh the page if requested in the object's script
if (page.NeedModify)
{
PreparedPages.ModifyPage(pageNo, page);
}
if (page.NeedRefresh)
{
Refresh();
}
}
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);
}
}
}
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
if (Disabled)
{
return;
}
Cursor = curHand;
// find object under mouse to invoke its PreviewClick event
int pageNo = PreviewPages.FindPage(Offset.X + e.X, Offset.Y + e.Y);
ReportPage page = PreparedPages.GetCachedPage(pageNo);
Rectangle pageBounds = PreviewPages.GetPageBounds(pageNo);
// reset NeedRefresh flag
page.NeedRefresh = false;
page.NeedModify = false;
Report.NeedRefresh = false;
// generate mouseup event
if (FActiveObject != null)
{
FActiveObject.OnMouseUp(new MouseEventArgs(e.Button, e.Clicks,
(int)Math.Round((Offset.X + e.X - pageBounds.X) / Zoom - page.LeftMargin * Units.Millimeters - FActiveObject.AbsLeft),
(int)Math.Round((Offset.Y + e.Y - pageBounds.Y) / Zoom - page.TopMargin * Units.Millimeters - FActiveObject.AbsTop),
e.Delta));
Hyperlink hyperlink = FActiveObject.Hyperlink;
switch (hyperlink.Kind)
{
case HyperlinkKind.URL:
try
{
Process.Start(hyperlink.Value);
}
catch
{
}
break;
case HyperlinkKind.PageNumber:
PageNo = int.Parse(hyperlink.Value);
break;
case HyperlinkKind.Bookmark:
Bookmarks.BookmarkItem bookmark = PreparedPages.Bookmarks.Find(hyperlink.Value);
if (bookmark != null)
{
PositionTo(bookmark.PageNo + 1, new PointF(0, bookmark.OffsetY));
}
break;
case HyperlinkKind.DetailReport:
// if detail report name is empty, refresh this report
if (String.IsNullOrEmpty(hyperlink.DetailReportName))
{
hyperlink.SetParameters(Report);
Report.NeedRefresh = true;
}
else
{
// open a new report. check if such tab is opened already
if (!Preview.SwitchToTab(hyperlink.Value))
{
FLocked = true;
try
{
using (Report report = hyperlink.GetReport(true))
{
report.Prepare();
Preview.AddPreviewTab(report.PreparedPages, hyperlink.Value);
report.SetPreparedPages(null);
}
}
finally
{
FLocked = false;
}
}
}
break;
case HyperlinkKind.DetailPage:
ReportPage reportPage = Report.FindObject(hyperlink.DetailPageName) as ReportPage;
if (reportPage != null)
{
hyperlink.SetParameters(Report);
// check if such tab is opened already
if (!Preview.SwitchToTab(hyperlink.Value))
{
FLocked = true;
Preview.Lock();
PreparedPages pages = new PreparedPages(Report);
try
{
Report.SetPreparedPages(pages);
Report.PreparePage(reportPage);
}
finally
{
FLocked = false;
Preview.Unlock();
Preview.AddPreviewTab(pages, hyperlink.Value);
}
}
}
break;
}
FActiveObject.OnClick(EventArgs.Empty);
}
// modify and refresh the page if requested in the object's script
if (page.NeedModify)
{
PreparedPages.ModifyPage(pageNo, page);
}
if (page.NeedRefresh)
{
Refresh();
}
if (Report.NeedRefresh)
{
bool saveShowProgress = Config.ReportSettings.ShowProgress;
Config.ReportSettings.ShowProgress = false;
RefreshReport();
Config.ReportSettings.ShowProgress = saveShowProgress;
}
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (Disabled)
{
return;
}
// find an object under mouse
int pageNo = PreviewPages.FindPage(Offset.X + e.X, Offset.Y + e.Y);
ReportPage page = PreparedPages.GetCachedPage(pageNo);
Rectangle pageBounds = PreviewPages.GetPageBounds(pageNo);
ReportComponentBase obj = page.HitTest(new PointF((Offset.X + e.X - pageBounds.X) / Zoom,
(Offset.Y + e.Y - pageBounds.Y) / Zoom));
// reset page's NeedRefresh flag
page.NeedRefresh = false;
// generate mouse enter, mouseleave events
if (obj != FActiveObject)
{
if (FActiveObject != null)
{
FActiveObject.OnMouseLeave(EventArgs.Empty);
}
if (obj != null)
{
obj.OnMouseEnter(EventArgs.Empty);
}
}
FActiveObject = obj;
// generate mousemove event
if (FActiveObject != null)
{
FActiveObject.OnMouseMove(new MouseEventArgs(e.Button, e.Clicks,
(int)Math.Round((Offset.X + e.X - pageBounds.X) / Zoom - page.LeftMargin * Units.Millimeters - FActiveObject.AbsLeft),
(int)Math.Round((Offset.Y + e.Y - pageBounds.Y) / Zoom - page.TopMargin * Units.Millimeters - FActiveObject.AbsTop),
e.Delta));
}
string url = "";
Cursor cursor = Cursors.Default;
if (obj != null)
{
cursor = obj.Cursor;
url = obj.Hyperlink.Value;
}
Cursor = cursor == Cursors.Default ? (e.Button == MouseButtons.Left ? curHandMove : curHand) : cursor;
Preview.UpdateUrl(url);
if (e.Button == MouseButtons.Left)
{
Offset = new Point(Offset.X - (e.X - FLastMousePoint.X), Offset.Y - (e.Y - FLastMousePoint.Y));
FLastMousePoint = e.Location;
}
// refresh page if requested in the object's script
if (page.NeedRefresh)
{
Refresh();
}
}
