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rpbasereport.pas
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{*******************************************************}
{ }
{ Report Manager }
{ }
{ The report base component, it contains }
{ subreports, pagesetup, printer selection... }
{ }
{ }
{ Copyright (c) 1994-2019 Toni Martir }
{ }
{ This file is under the MPL license }
{ If you enhace this file you must provide }
{ source code }
{ }
{ }
{*******************************************************}
// One report is composed of subreports, the report has
// page setup properties and a subreport list
// The subreports are printed in order and can have
// diferent datasources, grouping, sections etc
unit rpbasereport;
interface
{$I rpconf.inc}
uses Classes,sysutils,rptypes,rpsubreport,rpsection,rpmdconsts,
rpdatainfo,rpparams,rpeval,rptypeval,rpprintitem,rpmdbarcode,
rpmetafile,
{$IFDEF USEVARIANTS}
types,dateutils,Variants,
{$ENDIF}
rpalias,db,
{$IFDEF USEZLIB}
{$IFDEF DELPHI2009UP}
zlib,
{$ENDIF}
{$IFNDEF DELPHI2009UP}
rpmzlib,
{$ENDIF}
{$ENDIF}
{$IFDEF USERPDATASET}
rpdataset,
{$ENDIF}
{$IFDEF LINUX}
{$IFNDEF FPC}
// Libc,
{$ENDIF}
{$ENDIF}
{$IFDEF MSWINDOWS}
mmsystem,windows,
{$ENDIF}
rpmunits;
const
MILIS_PROGRESS_DEFAULT=500;
// 1 cms=574
// 0.5 cms=287
CONS_DEFAULT_GRIDWIDTH=115;
CONS_DEFAULT_GRIDCOLOR=$FF0000;
CONS_MIN_GRID_WIDTH=10;
// 29,7/2.54*1440
DEFAULT_PAGEHEIGHT=16837;
DEFAULT_PAGEWIDTH=11906;
// default Margins
// Left 1 cm, Right 1 cm, Top 1 cm Bottom 1.5 cm
DEFAULT_LEFTMARGIN=574;
DEFAULT_RIGHTMARGIN=574;
DEFAULT_BOTTOMMARGIN=861;
DEFAULT_TOPMARGIN=574;
// Minimum grid
type
TRpBaseReport=class;
TRpSubReportListItem=class;
TRpProgressEvent=procedure (Sender:TRpBaseReport;var docancel:boolean) of object;
TRpSubReportList=class(TCollection)
private
FReport:TRpBaseReport;
function GetItem(Index:Integer):TRpSubReportListItem;
procedure SetItem(index:integer;Value:TRpSubReportListItem);
public
constructor Create(rp:TRpBaseReport);
function Add:TRpSubReportListItem;
function IndexOf(Value:TRpSubReport):integer;
property Items[index:integer]:TRpSubReportListItem read GetItem write SetItem;default;
end;
TRpSubReportListItem=class(TCollectionItem)
private
FSubReport:TRpSubReport;
procedure SetSubReport(Value:TRpSubReport);
public
procedure Assign(Source:TPersistent);override;
published
property SubReport:TRpSubReport read FSubReport write SetSubReport;
end;
TIdenReportVar=class(TIdenFunction)
private
FReport:TRpBaseReport;
protected
function GetRpValue:TRpValue;override;
public
varname:string;
end;
TIdenEOF=class(TIdenFunction)
private
FReport:TRpBaseReport;
protected
function GetRpValue:TRpValue;override;
public
constructor Create(AOwner:TComponent);override;
end;
TThreadExecReport=class;
TRpBaseReport=class(TComponent)
private
FSubReports:TRpSubReportList;
FPageOrientation:TRpOrientation;
FPagesize:TRpPagesize;
FPageSizeQt:integer;
FPageWidth:TRpTwips;
FPageHeight:TRpTwips;
FCustomPageWidth:TRpTwips;
FCustomPageHeight:TRpTwips;
FPageBackColor:TRpColor;
FPreviewStyle:TRpPreviewStyle;
FPreviewWindow:TRpPreviewWindowStyle;
FPreviewMargins:Boolean;
FOnReadError:TReaderError;
FDataInfo:TRpDataInfoList;
FDatabaseInfo:TRpDatabaseInfoList;
FParams:TRpParamList;
FGridVisible:Boolean;
FGridEnabled:Boolean;
FGridColor:integer;
FGridLines:Boolean;
FGridWidth:integer;
FGridHeight:integer;
FLanguage:integer;
FMetafile:TRpMetafileReport;
FOnProgress:TRpProgressEvent;
FLeftMargin,FTopMargin,FRightMargin,FBottomMargin:TRpTwips;
FCopies:integer;
FCollateCopies:boolean;
FTwoPass:boolean;
FMilisProgres:integer;
FPrinterFonts:TRpPrinterFontsOption;
difmilis:int64;
FPrinterSelect:TRpPrinterSelect;
FPrintOnlyIfDataAvailable:Boolean;
FStreamFormat:TRpStreamFormat;
FReportAction:TRpReportActions;
FPreviewAbout:Boolean;
// Default font properties
FWFontName:widestring;
FLFontName:widestring;
FFontSize:smallint;
FFontRotation:smallint;
FFontStyle:integer;
FFontColor:integer;
FBackColor:integer;
FTransparent:Boolean;
FCutText:Boolean;
FWordWrap:Boolean;
FAlignMent:integer;
FVAlignMent:integer;
FSingleLine:boolean;
FType1Font:TRpType1Font;
FBidiModes:TStrings;
FMultiPage:Boolean;
FPrintStep:TRpSelectFontStep;
FPaperSource:Integer;
FDuplex:Integer;
FForcePaperName:String;
FLinesPerInch:Word;
fintpageindex:integer;
FOnWorkAsyncError:TWorkAsyncError;
FOnWorkProgress:TMetaFileWorkProgress;
procedure FInternalOnReadError(Reader: TReader; const Message: string;
var Handled: Boolean);
procedure SetSubReports(Value:TRpSubReportList);
procedure SetDataInfo(Value:TRpDataInfoList);
procedure SetDatabaseInfo(Value:TRpDatabaseInfoList);
procedure SetParams(Value:TRpParamList);
procedure SetGridWidth(Value:TRpTwips);
procedure SetGridHeight(Value:TRpTwips);
procedure ReadWFontName(Reader:TReader);
procedure WriteWFontName(Writer:TWriter);
procedure ReadLFontName(Reader:TReader);
procedure WriteLFontName(Writer:TWriter);
procedure SetBidiModes(Value:TStrings);
function Newlanguage(alanguage:integer):integer;
procedure StopWork;
protected
oldprintedsectionext:TPoint;
oldprintedsection:TRpSection;
printingonepass:boolean;
AbortingThread:Boolean;
FThreadExec:TThreadExecReport;
FExecuting:Boolean;
FUpdatePageSize:Boolean;
currentorientation:TRpOrientation;
lasterrorprocessing:WideString;
FTotalPagesList:TList;
FEvaluator:TRpEvaluator;
FIdentifiers:TStringList;
FAliasList:TRpAlias;
FCompose:Boolean;
FPendingSections:TStringList;
section:TRpSection;
subreport:TRpSubreport;
FRecordCount:integer;
FDriver:TRpPrintDriver;
// Identifiers
Fidenpagenum:TIdenReportVar;
Fidenlanguage:TIdenReportVar;
Fidenpagenumgroup:TIdenReportVar;
FidenEof:TIdenEof;
Fidenfreespace:TIdenReportVar;
Fidenpagewidth:TIdenReportVar;
Fidenpageheight:TIdenReportVar;
Fidenfreespacecms:TIdenReportVar;
Fidenfreespaceinch:TIdenReportVar;
Fidencurrentgroup:TIdenReportVar;
FIdenfirstsection:TIdenReportVar;
// Other
FInternalPageWidth:TRpTwips;
FInternalPageHeight:TRpTwips;
FDataAlias:TRpAlias;
pageposy,pageposx:integer;
freespace:integer;
printedsomething:Boolean;
gheaders,gfooters:TList;
FGroupHeaders:TStringList;
{$IFDEF MSWINDOWS}
mmfirst,mmlast:DWORD;
{$ENDIF}
{$IFDEF LINUX}
milifirst,mililast:TDatetime;
{$ENDIF}
rPageSizeQt:TPageSizeQt;
procedure GetChildren(Proc: TGetChildProc; Root: TComponent);override;
procedure UpdateCachedSources(alias:string);
procedure CheckProgress(finished:Boolean);
procedure FillGlobalHeaders;
procedure ClearTotalPagesList;
function OnGraphicOp(Top,Left,Width,Height:integer;
DrawStyle:integer;BrushStyle:integer;BrushColor:integer;
PenStyle:integer;PenWidth:integer; PenColor:integer):Boolean;
function OnPageOp(indexqt:integer;custom:Boolean;
customwidth,customheight,papersource:integer;
ForcePaperName:String;duplex:integer):Boolean;
function OnOrienationOp(orientation:integer):Boolean;
function OnImageOp(Top,Left,Width,Height:integer;
DrawStyle,DPIRes:integer;PreviewOnly:Boolean;Image:WideString):Boolean;
function OnBarcodeOp (Top,Left,Width,Height:integer;
Expression,DisplayFormat:WideString;BarType,Modul:Integer;Ratio,Rotation:Currency;
CalcChecksum:Boolean;BrushColor:Integer):Boolean;
function OnTextOp(Top,Left,Width,Height:integer;
Text,LFontName,WFontName:WideString;
FontSize,FontRotation,FontStyle,FontColor,Type1Font:integer;
CutText:boolean;Alignment:integer;WordWrap,RightToLeft:Boolean;
PrintStep,BackColor:integer;transparent:boolean):Boolean;
function OnTextheight(Text,LFontName,WFontName:WideString;
RectWidth,FontSize,FontStyle,Type1Font:integer;
PrintStep:integer):integer;
function ReOpenOp(datasetname:String;sql:Widestring):BOolean;
function OnParamInfo(ParamName:String;index:integer):String;
procedure CheckIfDataAvailable;
procedure UpdateParamsBeforeOpen(index:integer;doeval:boolean);
procedure DefineProperties(Filer:TFiler);override;
procedure DoPrintInternal;
property OnWorkProgress:TMetaFileWorkProgress read FOnWorkProgress write
FOnWorkProgress;
public
Errorprocessing:Boolean;
FailIfLoadExternalError:Boolean;
printing:boolean;
CurrentSubReportIndex:integer;
CurrentSectionIndex:integer;
PageNum:integer;
PageNumGroup:integer;
LastPage:Boolean;
ProgressToStdOut:Boolean;
AdoNetDriver:integer;
AsyncExecution:boolean;
maximum_width:integer;
maximum_height:integer;
TouchEnabled:Boolean;
procedure LoadExternals;virtual;
procedure AddReportItemsToEvaluator(eval:TRpEvaluator);
procedure InitEvaluator;
procedure BeginPrint(Driver:TRpPrintDriver);virtual;abstract;
procedure EndPrint;virtual;abstract;
function PrintNextPage:boolean;virtual;abstract;
procedure PrintAll(Driver:TRpPrintDriver);
property RecordCount:integer read FRecordCount;
property Metafile:TRpMetafileReport read FMetafile;
property Identifiers:TStringList read FIdentifiers;
constructor Create(AOwner:TComponent);override;
destructor Destroy;override;
procedure FreeSubreports;
function AddSubReport:TRpSubReport;
procedure DeleteSubReport(subr:TRpSubReport);
// Streaming functions and properties
procedure SaveToStream(Stream:TStream);
procedure SaveToFile(Filename:string);
procedure LoadFromStream(Stream:TStream);
procedure LoadFromFile(FileName:string);
property OnReadError:TReaderError read FOnReadError write FOnReadError;
// Design functions
procedure Createnew;
// Print functions
procedure ActivateDatasets;
procedure DeActivateDatasets;
procedure AddTotalPagesItem(apageindex,aobjectindex:integer;
adisplayformat:widestring);
function IsDotNet:boolean;
property OnWorkAsyncError:TWorkAsyncError read FOnWorkAsyncError write FOnWorkAsyncError;
property Evaluator:TRpEvaluator read FEvaluator;
procedure Compose(PrevReport:TRpBaseReport;execute:Boolean;ADriver:TRpPrintDriver);
property OnProgress:TRpProgressEvent read FOnProgress write FOnProgress;
property AliasList:TRpAlias read FAliasList write FAliasList;
property idenpagenum:TIdenReportVar read fidenpagenum;
property idenlanguage:TIdenReportVar read fidenlanguage;
property ideneof:TIdenEof read fideneof;
property idenfreespace:TIdenReportVar read fidenfreespace;
property idenfreespacecms:TIdenReportVar read fidenfreespacecms;
property idenfreespaceinch:TIdenReportVar read fidenfreespaceinch;
property idencurrentgroup:TIdenReportVar read fidencurrentgroup;
property MilisProgres:integer read FMilisProgres write FMilisProgres
default MILIS_PROGRESS_DEFAULT;
procedure AlignSectionsTo(linesperinch:integer);
procedure SetLanguage(index:integer);
procedure PrepareParamsBeforeOpen;
procedure AssignDefaultFontTo(aitem:TRpGenTextComponent);
procedure GetDefaultFontFrom(aitem:TRpGenTextComponent);
function GetSQLValue(connectionname,sql:String):Variant;
function RequestPage(pageindex:integer):boolean;
function CheckParameters(paramlist:TRpParamList;var paramname,amessage:string):Boolean;
// Default Font properties
property WFontName:widestring read FWFontName write FWFontName;
property LFontName:widestring read FLFontName write FLFontName;
published
property GridVisible:Boolean read FGridVisible write FGridVisible default true;
property GridLines:Boolean read FGridLines write FGridLines default false;
property GridEnabled:Boolean read FGridEnabled write FGridEnabled default true;
property GridColor:integer read FGridColor write FGridColor default CONS_DEFAULT_GRIDCOLOR;
property GridWidth:TRpTwips read FGridWidth write SetGridWidth default CONS_DEFAULT_GRIDWIDTH;
property GridHeight:TRpTwips read FGridHeight write SetGridHeight default CONS_DEFAULT_GRIDWIDTH;
// PageSetup properties
property PageOrientation:TRpOrientation read FPageOrientation
write FPageOrientation default rpOrientationDefault;
property Pagesize:TRpPageSize read FPagesize write FPageSize
default rpPageSizeDefault;
property PagesizeQt:integer read FPagesizeQt write FPageSizeQt
default 0;
property PageHeight:TRpTwips read FPageHeight write FPageHeight
default DEFAULT_PAGEHEIGHT;
property PageWidth:TRpTwips read FPageWidth write FPageWidth
default DEFAULT_PAGEWIDTH;
property CustomPageHeight:TRpTwips read FCustomPageHeight write FCustomPageHeight
default DEFAULT_PAGEHEIGHT;
property CustomPageWidth:TRpTwips read FCustomPageWidth write FCustomPageWidth
default DEFAULT_PAGEWIDTH;
property PageBackColor:TRpColor read FPageBackColor write FPageBackColor;
property PreviewStyle:TRpPreviewStyle read FPreviewStyle
write FPreviewStyle default spWide;
property PreviewMargins:Boolean read FPreviewMargins
write FPreviewMargins default false;
property PreviewWindow:TRpPreviewWindowStyle read FPreviewWindow
write FPreviewWindow default spwNormal;
property LeftMargin:TRpTwips read FLeftMargin write FLeftMargin
default DEFAULT_LEFTMARGIN;
property TopMargin:TRpTwips read FTopMargin write FTopMargin
default DEFAULT_TOPMARGIN;
property RightMargin:TRpTwips read FRightMargin write FRightMargin
default DEFAULT_RIGHTMARGIN;
property BottomMargin:TRpTwips read FBottomMargin write FBottomMargin
default DEFAULT_BOTTOMMARGIN;
property PrinterSelect:TRpPrinterSelect read FPrinterSelect write FPrinterSelect
default pRpDefaultPrinter;
// Subreports
property SubReports:TRpSubReportList read FSubReports write SetSubReports;
property DataInfo:TRpDataInfoList read FDataInfo write SetDataInfo;
property DatabaseInfo:TRpDatabaseInfoList read FDatabaseInfo write SetDatabaseInfo;
property Params:TRpParamList read FParams write SetParams;
// Language
property Language:integer read FLanguage write SetLanguage default -1;
// Other
property Copies:integer read FCopies write FCopies default 1;
property CollateCopies:boolean read FCollateCopies write FCollateCopies default false;
property TwoPass:boolean read FTwoPass write FTwoPass default false;
property PrinterFonts:TRpPrinterFontsOption read FPrinterFonts
write FPrinterFonts default rppfontsdefault;
property PrintOnlyIfDataAvailable:Boolean read FPrintOnlyIfDataAvailable
write FPrintOnlyIfDataAvailable default false;
property StreamFormat:TRpStreamFormat read FStreamFormat
write FStreamFormat;
property ReportAction:TRpReportActions read FReportAction write FReportAction;
property PreviewAbout:Boolean read FPreviewAbout write FPreviewAbout
default true;
// Default font props
property Type1Font:TRpType1Font read FType1Font write FType1Font;
property FontSize:smallint read FFontSize write FFontSize default 10;
property FontRotation:smallint read FFontRotation write FFontRotation default 0;
property FontStyle:integer read FFontStyle write FFontStyle default 0;
property FontColor:integer read FFontColor write FFontColor default 0;
property BackColor:integer read FBackColor write FBackColor default $FFFFFF;
property Transparent:Boolean read FTransparent write FTransparent default true;
property CutText:Boolean read FCutText write FCutText default false;
property Alignment:integer read FAlignment write FAlignment default 0;
property VAlignment:integer read FVAlignment write FVAlignment default 0;
property WordWrap:Boolean read FWordWrap write FWordWrap default false;
property SingleLine:boolean read FSingleLine write FSingleLine default false;
property BidiModes:TStrings read FBidiModes write SetBidiModes;
property MultiPage:Boolean read FMultiPage write FMultiPage default false;
property PrintStep:TRpSelectFontStep read FPrintStep write FPrintStep
default rpselectsize;
// Paper source
property PaperSource:Integer read FPaperSource write FPaperSource default 0;
property Duplex:Integer read FDuplex write FDuplex default 0;
property ForcePaperName:String read FForcePaperName write FForcePaperName;
// Interline
property LinesPerInch:Word read FLinesPerInch write FLinesPerInch default 600;
end;
TThreadExecReport=class(TThread)
public
report:TRpBaseReport;
docancel:boolean;
procedure Execute;override;
procedure DoProgress;
end;
implementation
uses rpxmlstream,rplabelitem,rpmdchart;
function TIdenReportVar.GeTRpValue:TRpValue;
var
subrep:TRpSubReport;
begin
Result:=Null;
if ((varname='PAGE') or (varname='PAGINA')) then
Result:=freport.PageNum+1
else
if ((varname='PAGENUM') or (varname='NUMPAGINA')) then
Result:=freport.PageNumGroup+1
else
if varname='FREE_SPACE_TWIPS' then
Result:=freport.freespace
else
if varname='FREE_SPACE_CMS' then
Result:=twipstocms(freport.freespace)
else
if varname='FREE_SPACE_INCH' then
Result:=twipstoinchess(freport.freespace)
else
if varname='CURRENTGROUP' then
begin
if freport.CurrentSubreportIndex>=freport.Subreports.Count then
subrep:=freport.Subreports.Items[freport.CurrentSubreportIndex-1].SubReport
else
subrep:=freport.Subreports.Items[freport.CurrentSubreportIndex].SubReport;
if subrep.LastRecord then
Result:=subrep.GroupCount
else
Result:=subrep.CurrentGroupIndex;
end
else
if varname='FIRSTSECTION' then
begin
Result:=not freport.printedsomething;
end
else
if varname='PAGEWIDTH' then
begin
Result:=freport.FInternalPageWidth;
end
else
if varname='PAGEHEIGHT' then
begin
Result:=freport.FInternalPageHeight;
end
else
if varname='LANGUAGE' then
begin
Result:=freport.FLanguage;
end;
end;
// Constructors and destructors
constructor TRpBaseReport.Create(AOwner:TComponent);
begin
inherited Create(AOwner);
FLinesPerInch:=600;
FPaperSource:=0;
FDuplex:=0;
FPreviewMargins:=false;
FGroupHeaders:=TStringList.Create;
FPreviewAbout:=true;
FStreamFormat:=rpStreamtext;
gheaders:=TList.Create;
gfooters:=TList.Create;
FailIfLoadExternalError:=True;
FMilisProgres:=MILIS_PROGRESS_DEFAULT;
FLanguage:=-1;
FCopies:=1;
FPageOrientation:=rpOrientationDefault;
// Means default pagesize
FPagesize:=rpPageSizeDefault;
FLeftMargin:=DEFAULT_LEFTMARGIN;
FRightMargin:=DEFAULT_RIGHTMARGIN;
FBottomMargin:=DEFAULT_BOTTOMMARGIN;
FTopMargin:=DEFAULT_TOPMARGIN;
// Means white
FPageBackColor:=$FFFFFF;
FPageWidth:=DEFAULT_PAGEWIDTH;
FPageheight:=DEFAULT_PAGEHEIGHT;
FCustomPageWidth:=DEFAULT_PAGEWIDTH;
FCustomPageheight:=DEFAULT_PAGEHEIGHT;
FPreviewStyle:=spWide;
// Def values of grid
FGridVisible:=True;
FGridEnabled:=True;
FGridColor:=CONS_DEFAULT_GRIDCOLOR;
FGridLines:=False;
FGridWidth:=CONS_DEFAULT_GRIDWIDTH;
FGridHeight:=CONS_DEFAULT_GRIDWIDTH;
FPendingSections:=TStringList.Create;
// Subreports
FSubReports:=TRpSubReportList.Create(Self);
// Data Info
FDataInfo:=TRpDataInfoList.Create(Self);
FDatabaseInfo:=TRpDatabaseInfoList.Create(Self);
FParams:=TRpParamList.Create(Self);
// Identifiers
FIdentifiers:=TStringList.Create;
FIdentifiers.Sorted:=true;
FIdentifiers.Duplicates:=dupError;
// Pagenum
FIdenPagenum:=TIdenReportVar.Create(nil);
Fidenpagenum.FReport:=self;
FidenPagenum.varname:='PAGE';
FIdenLanguage:=TIdenReportVar.Create(nil);
FIdenLanguage.FReport:=self;
FIdenLanguage.varname:='LANGUAGE';
FIdenPagenumgroup:=TIdenReportVar.Create(nil);
Fidenpagenumgroup.FReport:=self;
FidenPagenumgroup.varname:='PAGENUM';
FIdenfreespace:=TIdenReportVar.Create(nil);
Fidenfreespace.varname:='FREE_SPACE_TWIPS';
Fidenfreespace.FReport:=self;
FIdenpagewidth:=TIdenReportVar.Create(nil);
Fidenpagewidth.varname:='PAGEWIDTH';
Fidenpagewidth.FReport:=self;
FIdenpageheight:=TIdenReportVar.Create(nil);
Fidenpageheight.varname:='PAGEHEIGHT';
Fidenpageheight.FReport:=self;
FIdenfreespacecms:=TIdenReportVar.Create(nil);
Fidenfreespacecms.varname:='FREE_SPACE_CMS';
Fidenfreespacecms.FReport:=self;
FIdenfreespaceinch:=TIdenReportVar.Create(nil);
Fidenfreespaceinch.varname:='FREE_SPACE_INCH';
Fidenfreespaceinch.FReport:=self;
FIdencurrentgroup:=TIdenReportVar.Create(nil);
Fidencurrentgroup.varname:='CURRENTGROUP';
Fidencurrentgroup.FReport:=self;
FIdenfirstsection:=TIdenReportVar.Create(nil);
Fidenfirstsection.varname:='FIRSTSECTION';
FidenFirstSection.FReport:=self;
FIdeneof:=TIdenEOF.Create(nil);
Fideneof.FReport:=self;
// Metafile
FMetafile:=TRpMetafileReport.Create(nil);
metafile.OnRequestPage:=RequestPage;
FOnWorkProgress:=metafile.WorkProgress;
OnWorkAsyncError:=metafile.WorkAsyncError;
metafile.OnStopWork:=StopWork;
FDataAlias:=TRpAlias.Create(nil);
FTotalPagesList:=TList.Create;
// Other
FPrinterFonts:=rppfontsdefault;
FReportAction:=[];
// Default font
FLFontName:='Helvetica';
FWFontName:='Arial';
FontSize:=10;
FontRotation:=0;
FontStyle:=0;
FontColor:=0;
FBackColor:=$FFFFFF;
FTransparent:=true;
FCutText:=false;
FBidiModes:=TStringList.Create;
//
InitEvaluator;
end;
procedure TRpBaseReport.FillGlobalHeaders;
var
subrep:TRpSubReport;
i,j:integer;
k:integer;
begin
gheaders.clear;
gfooters.clear;
for i:=0 to Subreports.Count-1 do
begin
subrep:=SubReports.Items[i].SubReport;
j:=subrep.FirstPageHeader;
for k:=0 to subrep.PageHeaderCount-1 do
begin
if subrep.Sections[j+k].Section.Global then
gheaders.Add(subrep.Sections[j+k].Section);
end;
j:=subrep.FirstPageFooter;
for k:=0 to subrep.PageFooterCount-1 do
begin
if subrep.Sections[j+k].Section.Global then
gfooters.Add(subrep.Sections[j+k].Section);
end;
end;
end;
procedure TRpBaseReport.SetGridWidth(Value:TRpTwips);
begin
if Value<CONS_MIN_GRID_WIDTH then
Value:=CONS_MIN_GRID_WIDTH;
FGridWidth:=Value;
end;
procedure TRpBaseReport.SetGridHeight(Value:TRpTwips);
begin
if Value<CONS_MIN_GRID_WIDTH then
Value:=CONS_MIN_GRID_WIDTH;
FGridHeight:=Value;
end;
procedure TRpBaseReport.AddTotalPagesItem(apageindex,aobjectindex:integer;
adisplayformat:widestring);
var
aobject:TTotalPagesObject;
begin
aobject:=TTotalPagesObject.Create;
FTotalPagesList.Add(aobject);
aobject.PageIndex:=apageindex;
aobject.ObjectIndex:=aobjectindex;
aobject.DisplayFormat:=adisplayformat;
end;
procedure TRpBaseReport.ClearTotalPagesList;
var
i:integer;
begin
for i:=0 to FTotalPagesList.Count-1 do
begin
TObject(FTotalPagesList.Items[i]).Free;
end;
FTotalPagesList.Clear;
end;
destructor TRpBaseReport.Destroy;
begin
if (FExecuting) then
begin
AbortingThread:=false;
{$IFDEF MSWINDOWS}
WaitForSingleObject(FThreadExec.Handle,INFINITE);
{$ENDIF}
{$IFDEF LINUX}
FThreadExec.WaitFor;
{$ENDIF}
end;
FGroupHeaders.free;
gheaders.free;
gfooters.free;
FPendingSections.Free;
FSubReports.free;
FDataInfo.free;
FDatabaseInfo.free;
FParams.free;
FIdentifiers.free;
FMetafile.Free;
FDataAlias.Free;
FIdenPagenum.free;
FIdenPagenumgroup.free;
Fidenfreespace.free;
FIdenPagewidth.free;
FIdenPageHeight.free;
FIdenCurrentGroup.free;
FIdenFirstSection.free;
Fidenfreespacecms.free;
FBidiModes.free;
Fidenfreespaceinch.free;
FIdenLanguage.free;
FIdenEof.free;
ClearTotalPagesList;
FTotalPagesList.free;
if Assigned(FEvaluator) then
begin
FEvaluator.free;
FEvaluator:=nil;
end;
inherited destroy;
end;
// Streaming procedures
// GetChildren helps streaming the subreports
procedure TRpBaseReport.GetChildren(Proc: TGetChildProc; Root: TComponent);
var
I: Integer;
OwnedComponent: TComponent;
// rpsubreport:TRpSubReport;
begin
inherited GetChildren(Proc, Root);
if Root = Self then
for I := 0 to ComponentCount - 1 do
begin
OwnedComponent := Components[I];
if not OwnedComponent.HasParent then
Proc(OwnedComponent);
// if OwnedComponent is TRpSubReport then
// begin
// if subreport.
// Proc(OwnedComponent);
// end;
end;
end;
procedure TRpBaseReport.SaveToStream(Stream:TStream);
var
{$IFDEF USEZLIB}
zstream:TCompressionStream;
{$ENDIF}
theformat:TRpStreamFormat;
memstream:TMemoryStream;
forcexml:boolean;
i:integer;
begin
// restore parameters initial values
Params.RestoreInitialValues;
theformat:=FStreamFormat;
forcexml:=false;
for i:=0 to DatabaseInfo.Count-1 do
begin
if DatabaseInfo.Items[i].Driver in [rpdatadriver,rpdotnet2driver] then
begin
forcexml:=true;
break;
end;
end;
if (forcexml) then
if ((theformat<>rpStreamXML) AND (theformat<>rpStreamXMLZLib)) then
theformat:=rpStreamXML;
if (Subreports.Count<1) then
begin
AddSubReport;
end;
{$IFNDEF USEZLIB}
if theformat=rpStreamZLib then
theformat:=rpStreambinary;
{$ENDIF}
{$IFDEF USEZLIB}
if theformat=rpStreamZLib then
begin
zstream:=TCompressionStream.Create(clDefault,Stream);
try
zstream.WriteComponent(Self);
finally
zstream.free;
end;
end
else
if theformat=rpStreamXMLZLib then
begin
zstream:=TCompressionStream.Create(clDefault,Stream);
try
memstream:=TMemorystream.Create;
try
WriteReportXML(Self,memstream);
memstream.Seek(0,soFromBeginning);
CopyStreamContent(memstream, zstream);
// zstream.CopyFrom(memstream,memstream.size);
finally
memstream.free;
end;
finally
zstream.free;
end;
end
else
{$ENDIF}
if theformat=rpStreamBinary then
begin
Stream.WriteComponent(Self);
end
else
if theformat=rpStreamXML then
begin
WriteReportXML(Self,Stream);
end
else
begin
memstream:=TMemoryStream.Create;
try
memstream.WriteComponent(Self);
memstream.Seek(0,soFromBeginning);
ObjectBinaryToText(memstream,Stream);
finally
memstream.free;
end;
end;
end;
procedure TRpBaseReport.FreeSubreports;
var
i:integer;
begin
// If it's destroying left do the work
if (csDestroying in ComponentState) then
exit;
// Frees all the reports
for i:=0 to FSubreports.Count-1 do
begin
FSubReports.Items[i].FSubReport.Free;
end;
FSubReports.Clear;
end;
function TRpBaseReport.AddSubReport:TRpSubReport;
var
it:TRpSubReportListItem;
begin
it:=SubReports.Add;
it.FSubReport:=TRpSubreport.Create(Self);
Generatenewname(it.FSubReport);
it.FSubReport.CreateNew;
Result:=it.FSubReport;
end;
procedure TRpBaseReport.CreateNew;
begin
// Creates a new default report
FreeSubreports;
AddSubReport;
end;
procedure TRpBaseReport.SaveToFile(Filename:string);
var
fstream:TFileStream;
begin
fstream:=TFileStream.Create(Filename,fmCreate);
try
SaveToStream(fstream);
finally
fstream.free;
end;
end;
procedure TRpBaseReport.LoadFromFile(FileName:string);
var
stream:TFileStream;
begin
stream:=TFileStream.Create(Filename,fmOpenRead or fmShareDenyWrite);
try
LoadFromStream(stream);
finally
stream.free;
end;
end;
procedure TRpBaseReport.LoadFromStream(Stream:TStream);
var
reader:TReader;
memstream,amemstream:TMemoryStream;
readed:integer;
buf:array of Byte;
{$IFDEF USEZLIB}
zlibs:TDeCompressionStream;
{$ENDIF}
theformat:TRpStreamFormat;
firstchar:char;
first:boolean;
begin
// FreeSubrepots
FreeSubreports;
MemStream:=TMemoryStream.Create;
try
firstchar:=chr(0);
first:=false;
// Copy to memory stream
SetLength(buf,120000);
repeat
{$IFDEF DOTNETD}
readed:=Stream.Read(buf,120000);
memstream.Write(buf,readed);
{$ENDIF}
{$IFNDEF DOTNETD}
readed:=Stream.Read(buf[0],120000);
memstream.Write(buf[0],readed);
{$ENDIF}
if ((readed>0) and (not first)) then
begin
first:=true;
firstchar:=char(buf[0]);
end;
until readed<120000;
memstream.Seek(0,soFrombeginning);
// Looks stream type
if (memstream.size<1) then
Raise Exception.Create(SRpStreamFormat);
if firstchar='x' then
theformat:=rpStreamzlib
else
if firstchar='o' then
theformat:=rpStreamText
else
if firstchar='<' then
theformat:=rpStreamXML
else
theformat:=rpStreambinary;
{$IFNDEF USEZLIB}
if theformat=rpStreamzlib then
Raise Exception.Create(SRpZLibNotSupported);
{$ENDIF}
{$IFDEF USEZLIB}
if theformat=rpStreamzlib then
begin
amemstream:=TMemoryStream.Create;
try
zlibs:=TDeCompressionStream.Create(MemStream);
try
// Decompress
repeat
readed:=zlibs.Read(buf[0],120000);
amemstream.Write(buf[0],readed);
until readed<120000;
amemstream.Seek(0,soFromBeginning);
// Check if is xml
if PAnsiChar(amemstream.memory)^='<' then
begin
ReadReportXML(self,amemstream);
end
else
begin
reader:=TReader.Create(amemstream,1000);
try
reader.OnError:=FInternalOnReadError;
reader.ReadRootComponent(Self);
finally
reader.free;
end;
end;
finally
zlibs.Free;
end;
finally
amemstream.free;
end;
end
else
{$ENDIF}
if theformat=rpStreambinary then
begin
reader:=TReader.Create(memstream,1000);
try
reader.OnError:=FInternalOnReadError;
reader.ReadRootComponent(Self);
finally
reader.free;
end;
end
else
if theformat=rpStreamXML then
begin
ReadReportXML(self,memstream);
end