/// <summary>
/// Processes the section up to heightTreshold.
/// </summary>
/// <returns>
/// returns <c>true</c> if finished processig section and <c>false</c> while not
/// </returns>
/// <param name='pageBreakTreshold'>
/// maxiumum height (starting from current section Location.Y) after which page will break
/// </param>
public bool ProcessSectionUpToHeightTreshold(double heightTreshold)
{
double span = 0;
double y = 0;
double maxHeight = 0;
double maxControlBottom = 0;
double tmpSpan = 0;
bool result = true;
double realBreak = 0;
double breakControlMax = 0;
bool allKeepTogether = false;
double heightTresholdIncludingBottomMargin = 0;
if (currentSectionOrderedControls.Count > 0)
{
maxControlBottom = currentSectionOrderedControls.Max(ctrl => ctrl.Bottom);
}
marginBottom = currentSection.Height - maxControlBottom;
heightTresholdIncludingBottomMargin = heightTreshold - marginBottom;
for (int i = 0; i < currentSectionOrderedControls.Count; i++)
{
var control = currentSectionOrderedControls [i];
tmpSpan = double.MinValue;
if (!control.IsVisible)
{
continue;
}
if (control is Line && (control as Line).ExtendToBottom)
{
var line = control as Line;
currentSectionExtendedLines.Add(line);
}
if (source != null && control is IDataControl)
{
IDataControl dc = control as IDataControl;
if (!string.IsNullOrEmpty(dc.FieldName))
{
switch (dc.FieldKind)
{
case FieldKind.Parameter:
if (parameters.ContainsKey(dc.FieldName))
{
var parameter = parameters [dc.FieldName];
dc.Text = parameter.GetValue(parameter.DefaultValue, dc.FieldTextFormat);
}
break;
case FieldKind.Expression:
if (dc.FieldName == "#PageNumber")
{
dc.Text = context.CurrentPageIndex.ToString();
}
else if (dc.FieldName == "#RowNumber")
{
dc.Text = context.RowIndex.ToString();
}
break;
case FieldKind.Data:
if (source.ContainsField(dc.FieldName))
{
dc.Text = source.GetValue(dc.FieldName, dc.FieldTextFormat);
}
break;
default:
break;
}
}
}
y = control.Top + span;
Size controlSize = ReportRenderer.MeasureControl(control);
foreach (SpanInfo item in currentSectionSpans)
{
if (y > item.Treshold)
{
tmpSpan = Math.Max(tmpSpan, item.Span);
}
}
span = tmpSpan == double.MinValue ? 0 : tmpSpan;
control.Top += span;
if (control is SubReport)
{
SubReport sr = control as SubReport;
double maxSubreportHeight = ((heightTreshold - span) - sr.Top);
sr.ProcessUpToPage(this.ReportRenderer, maxSubreportHeight);
if (!(sr.Engine.context.HeightUsedOnCurrentPage > maxSubreportHeight))
{
controlSize = new Size(sr.Width, sr.Engine.context.HeightUsedOnCurrentPage);
subreportSectionControlsBuffer.AddRange(sr.Engine.currentPage.Controls);
sr.Engine.currentPage.Controls.Clear();
if (!sr.Finished && sr.CanGrow)
{
storeSectionForNextPage();
var subreportClone = sr.CreateControl() as SubReport;
subreportClone.Top -= 0;
subreportClone.Engine = sr.Engine;
subreportClone.Height = sr.TemplateControl.Height;
storeControlForNextSection(subreportClone);
sr.Engine.nextPage();
}
if (!sr.Finished)
{
result = false;
}
}
else
{
Console.Write("error:");
}
}
double heightBeforeGrow = control.Height;
double bottomBeforeGrow = control.Bottom;
control.Size = controlSize;
if (control.Bottom <= heightTreshold)
{
if (!allKeepTogether)
{
currentSectionControlsBuffer.Add(control);
}
else
{
storeSectionForNextPage();
var controlToStore = control;
controlToStore.Top -= realBreak;
controlToStore.Height = heightBeforeGrow;
storeControlForNextSection(controlToStore);
}
}
else
{
result = false;
storeSectionForNextPage();
if (!currentSection.KeepTogether)
{
breakControlMax = control.Height - ((control.Top + control.Height) - heightTreshold);
if (realBreak == 0)
{
realBreak = heightTreshold;
}
if (control.Top > heightTreshold)
{
var controlToStore = control.CreateControl();
controlToStore.Top -= realBreak;
controlToStore.Height = heightBeforeGrow;
storeControlForNextSection(controlToStore);
continue;
}
Control[] brokenControl = ReportRenderer.BreakOffControlAtMostAtHeight(control, breakControlMax);
realBreak = heightTreshold - (breakControlMax - brokenControl [0].Height);
storeControlForNextSection(brokenControl [1]);
currentSectionControlsBuffer.Add(brokenControl [0]);
}
else
{
var controlToStore = control;
controlToStore.Top -= realBreak;
controlToStore.Height = heightBeforeGrow;
if (!allKeepTogether)
{
for (int w = 0; w < currentSectionControlsBuffer.Count; w++)
{
currentSectionControlsBuffer [w].Height = currentSectionControlsBuffer [w].TemplateControl.Height;
controlsFromPreviousSectionPage [currentSection.Name].Add(currentSectionControlsBuffer [w]);
}
allKeepTogether = true;
}
storeControlForNextSection(controlToStore);
continue;
}
}
if (currentSection.CanGrow && maxHeight <= control.Bottom)
{
maxHeight = Math.Max(control.Bottom, maxHeight);
}
if (!result)
{
if (realBreak > 0)
{
maxHeight = Math.Max(realBreak, maxHeight);
}
}
currentSectionSpans.Add(
new SpanInfo
{
Treshold = bottomBeforeGrow,
Span = span + control.Bottom - bottomBeforeGrow
});
}
double sectionHeightWithMargin = maxHeight + marginBottom;
if (!result)
{
currentSection.Height = heightTreshold;
}
else if ((currentSection.CanGrow && currentSection.Height < sectionHeightWithMargin) ||
(currentSection.CanShrink && currentSection.Height > sectionHeightWithMargin))
{
currentSection.Height = sectionHeightWithMargin;
}
else
{
currentSection.Height = Math.Min(currentSection.Height, heightTreshold);
}
foreach (Line lineItem in currentSectionExtendedLines)
{
if (lineItem.Location.Y == lineItem.End.Y)
{
lineItem.Location = new Point(lineItem.Location.X, currentSection.Height - lineItem.LineWidth / 2);
lineItem.End = new Point(lineItem.End.X, currentSection.Height - lineItem.LineWidth / 2);
}
else if (lineItem.Location.Y > lineItem.End.Y)
{
lineItem.Location = new Point(lineItem.Location.X, currentSection.Height);
}
else
{
lineItem.End = new Point(lineItem.End.X, currentSection.Height);
}
if (!result)
{
var newCtrl = lineItem.CreateControl();
if (lineItem.Location.Y == lineItem.End.Y)
{
lineItem.IsVisible = false;
}
newCtrl.Top = 0;
storeSectionForNextPage();
controlsFromPreviousSectionPage [currentSection.Name].Insert(1, newCtrl);
}
}
sectionToStore = null;
if (!currentSection.CanGrow)
{
controlsFromPreviousSectionPage.Remove(currentSection.Name);
result = true;
}
return(result);
}
