org.jclarion.clarion.print
Class OpenReport

java.lang.Object
  org.jclarion.clarion.print.OpenReport

All Implemented Interfaces:

PropertyObjectListener

public class OpenReport
extends java.lang.Object
implements PropertyObjectListener

Manage printing of report Some notes about clarion reports: Withprior and withnext are cumulative. withprior and withnext will not force a page to completely empty In clarion implementation - withprior will consider add added item and recursively scan back. If recursive scan back results in prior page being completely emptied, then withprior is ignored In clarion implementation - withnext appears to trigger when the page is closed. System will identify items on page to move onto next page based on withnext setting. If withnext would result in page being completely emptied then withnext skips Group headers and footers are printed on use var breaks only and does not pay attention to page breaks For aggregate activity as follows: --- Firstly the rules taken from clarion documentation: Options include: SUM, COUNT, MAX, MIN, AVE When in a detail structure - is evaluated every time detail structure prints so provides running value In group footer - based on detail structures for any detail within the break that is printed. In footer - based on any detail on that page only RESET option specifies break control on which statistic resets. TALLY option specifies when counting occurs. PAGE option specifies that statistic resets when page break occurs. PAGENO option specifies that string is to contain the page number There are a couple of aspects of the implementation that I am not fully happy with. Main item is how paging is setup. Paging occurs after individual printing blocks - details, headers, footers, etc are laid out. As such a second cycle occurs where things like PROP:PAGENO are recalculated and also SUM, CNT etc are implemented on page footers. Result is that following are misimplemented: PROP:PAGE does not work at all RESET/TALLY on page footers do not work at all Ideally we want to do two passes - pass one does basic layouts taking items like withprior and withnext into consideration and and pass two performs aggregation and aggregation can also tally/reset based on page break activity result is that PAGE becomes a meaningful reset property for all aggregations and all agregations are implemented the same - unlike right now where aggregations in detail and break footers are different from aggregations in the page footer. But there are even challenges with this - because aggregate result and influence how blocks on a page layout and thus influence page break triggers. i.e. you can setup a break on VARX and VARX forms MAX(VARX) so aggregate triggers decision to break or not which in turn influences page layout in this case - printing of break headers/footers. Problem - if required to be solved - needs more thought.

Author:

barney

Field Summary

static ReportDetail

NEWPAGE

Constructor Summary

OpenReport(ClarionReport report)

Method Summary

ReportContainer	commonAncestor(ReportDetail d1, ReportDetail d2)
PrintObject	current()
PageBook	getBook()
int	getHeight()
java.awt.print.PageFormat	getPageFormat()
java.lang.Iterable<Page>	getPages()
java.lang.Object	getProperty(PropertyObject owner, int property)
ClarionReport	getReport()
ReportStatistic	getStatistic(StringControl control)
int	getWidth()
int	getX()
double	getXScale()
int	getY()
double	getYScale()
void	init()
void	init(java.awt.Graphics graphics)
void	init(PrintContext graphics)
boolean	isAggregatingField(ClarionObject field)
boolean	isInit()
PrintObject	next()
void	pageBreak()
void	pageBreak(boolean open)
PrintObject	peek(int offset)
PrintObject	previous()
void	print()
void	print(ReportDetail detail)
void	propertyChanged(PropertyObject owner, int property, ClarionObject value)
void	refreshTallyDependencies() public int getPageCount() { if (pages==null) init(); return pages.size(); }
void	registerResetListener(AbstractReportControl control, ReportStatistic statistic)
void	registerTallyListener(AbstractReportControl control, ReportStatistic statistic)
void	reset()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NEWPAGE

public static ReportDetail NEWPAGE

Constructor Detail

OpenReport

public OpenReport(ClarionReport report)

Method Detail

getReport

public ClarionReport getReport()

getProperty

public java.lang.Object getProperty(PropertyObject owner,
                                    int property)

Specified by:

getProperty in interface PropertyObjectListener

propertyChanged

public void propertyChanged(PropertyObject owner,
                            int property,
                            ClarionObject value)

Specified by:

propertyChanged in interface PropertyObjectListener

registerTallyListener

public void registerTallyListener(AbstractReportControl control,
                                  ReportStatistic statistic)

registerResetListener

public void registerResetListener(AbstractReportControl control,
                                  ReportStatistic statistic)

isAggregatingField

public boolean isAggregatingField(ClarionObject field)

getStatistic

public ReportStatistic getStatistic(StringControl control)

pageBreak

public void pageBreak()

pageBreak

public void pageBreak(boolean open)

commonAncestor

public ReportContainer commonAncestor(ReportDetail d1,
                                      ReportDetail d2)

print

public void print(ReportDetail detail)

reset

public void reset()

next

public PrintObject next()

previous

public PrintObject previous()

current

public PrintObject current()

peek

public PrintObject peek(int offset)

getPages

public java.lang.Iterable<Page> getPages()

refreshTallyDependencies

public void refreshTallyDependencies()

public int getPageCount() { if (pages==null) init(); return pages.size(); }

getPageFormat

public java.awt.print.PageFormat getPageFormat()

isInit

public boolean isInit()

init

public void init()

init

public void init(java.awt.Graphics graphics)

init

public void init(PrintContext graphics)

print

public void print()

getX

public int getX()

getXScale

public double getXScale()

getYScale

public double getYScale()

getY

public int getY()

getWidth

public int getWidth()

getHeight

public int getHeight()

getBook

public PageBook getBook()