1140 lines
30 KiB
ObjectPascal
1140 lines
30 KiB
ObjectPascal
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{******************************************}
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{ }
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{ FastReport VCL }
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{ XML serializer }
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{ }
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{ Copyright (c) 1998-2021 }
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{ by Fast Reports Inc. }
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{ }
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{******************************************}
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unit frxXMLSerializer;
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interface
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{$I frx.inc}
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uses
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{$IFNDEF FPC}Windows, Messages,{$ENDIF}
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SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
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TypInfo, frxXML, frxClass
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{$IFDEF FPC}
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, LResources, LCLType, LCLProc, LazHelper
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{$ENDIF}
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{$IFDEF Delphi6}
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, Variants
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{$ENDIF};
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type
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TfrxGetAncestorEvent = procedure(const ComponentName: String;
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var Ancestor: TPersistent) of object;
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{ TfrxXMLSerializer is the XML analogue of the Delphi component streaming -
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TReader and TWriter }
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TfrxXMLSerializer = class(TObject)
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private
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FErrors: TStringList;
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FFixups: TList;
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FOwner: TfrxComponent;
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FReader: TReader;
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FReaderStream: TMemoryStream;
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FSerializeDefaultValues: Boolean;
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FStream: TStream;
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FOldFormat: Boolean;
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FOnGetAncestor: TfrxGetAncestorEvent;
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FGetCustomDataEvent: TfrxGetCustomDataEvent;
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FOnSaveCustomDataEvent: TfrxSaveCustomDataEvent;
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FHandleNestedProperties: Boolean;
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FSaveAncestorOnly: Boolean;
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FIgnoreName: Boolean;
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procedure AddFixup(Obj: TPersistent; p: PPropInfo; Value: String);
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procedure ClearFixups;
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procedure FixupReferences;
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{$IFDEF FPC}
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procedure PropertyNotFoundEvent(Reader: TReader; Instance: TPersistent;
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var PropName: string; IsPath: boolean; var Handled, Skip: Boolean);
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procedure ReadWriteStringPropertyEvent(Sender:TObject;
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const Instance: TPersistent; PropInfo: PPropInfo;
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var Content:string);
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procedure ReaderError(Reader: TReader; const Message: string;
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var Handled: Boolean);
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{$ENDIF}
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public
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constructor Create(Stream: TStream);
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destructor Destroy; override;
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function ObjToXML(Obj: TPersistent; const Add: String = ''; Ancestor: TPersistent = nil): String;
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function ReadComponent(Root: TfrxComponent): TfrxComponent;
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function ReadComponentStr(Root: TfrxComponent; s: String; DontFixup: Boolean = False): TfrxComponent;
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function WriteComponentStr(c: TfrxComponent; Ancestor: TPersistent = nil): String;
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procedure ReadRootComponent(Root: TfrxComponent; XMLItem: TfrxXMLItem = nil);
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procedure CopyFixupList(FixList: TList);
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procedure ReadPersistentStr(Root: TComponent; Obj: TPersistent; const s: String);
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procedure WriteComponent(c: TfrxComponent; Ancestor: TPersistent = nil);
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procedure WriteRootComponent(Root: TfrxComponent; SaveChildren: Boolean = True;
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XMLItem: TfrxXMLItem = nil);
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procedure XMLToObj(const s: String; Obj: TPersistent);
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property Errors: TStringList read FErrors;
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property Owner: TfrxComponent read FOwner write FOwner;
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property Stream: TStream read FStream;
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property Fixups: TList read FFixups;
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property SerializeDefaultValues: Boolean read FSerializeDefaultValues
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write FSerializeDefaultValues;
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property OnGetAncestor: TfrxGetAncestorEvent read FOnGetAncestor write FOnGetAncestor;
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property OnGetCustomDataEvent: TfrxGetCustomDataEvent read FGetCustomDataEvent write FGetCustomDataEvent;
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property OnSaveCustomDataEvent: TfrxSaveCustomDataEvent read FOnSaveCustomDataEvent write FOnSaveCustomDataEvent;
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property OldFormat: Boolean read FOldFormat write FOldFormat;
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property HandleNestedProperties: Boolean read FHandleNestedProperties write FHandleNestedProperties;
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property SaveAncestorOnly: Boolean read FSaveAncestorOnly write FSaveAncestorOnly;
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{ ignore components name during loading }
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property IgnoreName: Boolean read FIgnoreName write FIgnoreName;
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end;
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TfrxFixupItem = class(TObject)
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public
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Obj: TPersistent;
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PropInfo: PPropInfo;
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Value: String;
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end;
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implementation
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uses frxUtils, frxRes, frxUnicodeUtils{$IFDEF FPC}, RtlConsts{$ENDIF};
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type
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THackComponent = class(TComponent);
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THackPersistent = class(TPersistent);
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THackReader = class(TReader);
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{ TfrxXMLSerializer }
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constructor TfrxXMLSerializer.Create(Stream: TStream);
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begin
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FErrors := TStringList.Create;
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FErrors.Sorted := True;
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FErrors.Duplicates := dupIgnore;
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FFixups := TList.Create;
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FStream := Stream;
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FReaderStream := TMemoryStream.Create;
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FSaveAncestorOnly := False;
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FReader := TReader.Create(FReaderStream, 4096);
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{$IFDEF Delphi12}
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FOldFormat := False;
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{$ELSE}
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FOldFormat := True;
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{$ENDIF}
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{$IFDEF FPC}
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FReader.OnPropertyNotFound := PropertyNotFoundEvent;
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FReader.OnReadStringProperty := ReadWriteStringPropertyEvent;
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FReader.OnError := ReaderError;
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{$ENDIF}
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end;
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destructor TfrxXMLSerializer.Destroy;
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begin
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FErrors.Free;
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FReader.Free;
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FReaderStream.Free;
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ClearFixups;
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FFixups.Free;
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inherited;
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end;
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procedure TfrxXMLSerializer.ClearFixups;
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begin
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while FFixups.Count > 0 do
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begin
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TfrxFixupItem(FFixups[0]).Free;
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FFixups.Delete(0);
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end;
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end;
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procedure TfrxXMLSerializer.AddFixup(Obj: TPersistent; p: PPropInfo;
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Value: String);
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var
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Item: TfrxFixupItem;
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begin
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Item := TfrxFixupItem.Create;
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Item.Obj := Obj;
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Item.PropInfo := p;
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Item.Value := Value;
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FFixups.Add(Item);
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end;
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procedure TfrxXMLSerializer.FixupReferences;
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var
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i: Integer;
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Item: TfrxFixupItem;
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Ref: TObject;
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begin
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for i := 0 to FFixups.Count - 1 do
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begin
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Item := FFixups[i];
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Ref := nil;
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if FOwner <> nil then
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Ref := FOwner.FindObject(Item.Value);
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if Ref = nil then
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Ref := frxFindComponent(FOwner, Item.Value);
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if Ref <> nil then
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SetOrdProp(Item.Obj, Item.PropInfo, frxInteger(Ref));
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end;
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FReader.FixupReferences;
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FReader.EndReferences;
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ClearFixups;
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end;
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{$IFDEF FPC}
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procedure TfrxXMLSerializer.PropertyNotFoundEvent(Reader: TReader;
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Instance: TPersistent; var PropName: string; IsPath: boolean; var Handled,
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Skip: Boolean);
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begin
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{$IFDEF DEBUGFR4XML}
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DebugLn('WARNING: XMLSerializer PropNotFound for ('+Instance.ClassName+'): ' +
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'Skipped property '+PropName+' Handled '+BoolToStr(Handled));
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{$ENDIF}
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Skip := True;
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Handled := True;
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end;
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procedure TfrxXMLSerializer.ReadWriteStringPropertyEvent(Sender: TObject;
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const Instance: TPersistent; PropInfo: PPropInfo; var Content: string);
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begin
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{$IFDEF DEBUGFR4XML}
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DebugLn('TfrxXMLSerializer.ReadWriteStringPropertyEvent: Content ',Content);
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{$ENDIF}
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end;
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procedure TfrxXMLSerializer.ReaderError(Reader: TReader; const Message: string;
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var Handled: Boolean);
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begin
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Handled := True;
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{$IFDEF DEBUGFR4XML}
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DebugLn('TfrxXMLSerializer.ReaderError: Message=',Message);
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{$ENDIF}
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end;
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type
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THackedObjectReader = class(TBinaryObjectReader);
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{$ENDIF}
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procedure TfrxXMLSerializer.XMLToObj(const s: String; Obj: TPersistent);
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var
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i, j, start, len, code: Integer;
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i1, start1, len1: Integer;
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AName, AValue: String;
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Obj1: TPersistent;
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p: PPropInfo;
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ps, ps1: PChar;
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procedure DoNonPublishedProps(const AValue: String);
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begin
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FReaderStream.Clear;
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frxStringToStream(AValue, FReaderStream);
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FReaderStream.Position := 0;
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{$IFDEF FPC}
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THackedObjectReader(FReader.Driver).FStream.Position := 0;
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FReaderStream.Position := 0;
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if FReaderStream.Size = 0 then
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Exit;
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{$ELSE}
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FReader.Position := 0;
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{$ENDIF}
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try
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{$IFDEF DELPHI16}
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ActivateClassGroup(TControl);
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{$ENDIF}
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{$IFDEF FPC}
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while (THackedObjectReader(FReader.Driver).FBufPos < THackedObjectReader(FReader.Driver).FBufEnd)
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or (FReaderStream.Position < FReaderStream.Size) do
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{$ELSE}
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while FReader.Position < FReaderStream.Size do
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{$ENDIF}
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THackReader(FReader).ReadProperty(Obj1);
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except
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{$IFDEF FPC}
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on E:Exception do
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begin
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DebugLn('TfrxXMLSerializer.XMLToObj: GENERAL EXCEPTION ',E.Message);
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end;
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{$ENDIF}
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end;
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end;
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begin
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{ speed optimized code. affects the speed of loading prepared page in the preview }
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len := Length(s);
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i := 1;
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ps := PChar(s) - 1;
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while i < len do
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begin
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j := i;
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len1 := len;
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ps1 := ps;
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while (j < len1) and (ps1[j] = ' ') do
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Inc(j);
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start := j;
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while (j < len1) and (ps1[j] <> '=') do
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Inc(j);
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i := j;
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if i < len then
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begin
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j := i - 1;
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while (j > 0) and (ps1[j] = ' ') do
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Dec(j);
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AName := Copy(s, start, j - start + 1);
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if AName = '' then break;
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j := i;
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len1 := len;
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while (j < len1) and (ps1[j] <> '"') do
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Inc(j);
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start := j + 1;
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Inc(j);
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while (j < len1) and (ps1[j] <> '"') do
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Inc(j);
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i := j;
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AValue := Copy(s, start, i - start);
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Inc(i);
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Obj1 := Obj;
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{ check multiple properties }
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len1 := Length(AName);
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start1 := 1;
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i1 := 1;
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while (i1 < len1) and (AName[i1] <> '.') do
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Inc(i1);
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if i1 < len1 then
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begin
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while i1 < len1 do
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begin
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p := GetPropInfo(Obj1.ClassInfo, Copy(AName, start1, i1 - start1));
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if p = nil then
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break;
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Obj1 := TPersistent(GetOrdProp(Obj1, p));
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start1 := i1 + 1;
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Inc(i1);
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while (i1 < len1) and (AName[i1] <> '.') do
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Inc(i1);
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end;
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AName := Copy(AName, start1, MaxInt);
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end;
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try
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if Length(AName) = 1 then
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begin
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{ special properties }
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case AName[1] of
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'x':
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begin
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TfrxCustomMemoView(Obj1).Text := frxXMLToStr(AValue);
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continue;
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end;
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'u':
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begin
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{$IFDEF Delphi12}
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if FOldFormat then
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TfrxCustomMemoView(Obj1).Text := frxXMLToStr(Utf8Decode(AnsiString(AValue)))
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else
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TfrxCustomMemoView(Obj1).Text := frxXMLToStr(AValue);
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{$ELSE}
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{$IFDEF FPC}
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TfrxCustomMemoView(Obj1).Text := frxXMLToStr(AValue);
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{$ELSE}
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TfrxCustomMemoView(Obj1).Text := Utf8Decode(frxXMLToStr(AValue));
|
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{$ENDIF}
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{$ENDIF}
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continue;
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end;
|
||
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'l':
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begin
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TfrxComponent(Obj1).Left := frxStrToFloat(String(AValue));
|
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continue;
|
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end;
|
||
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't':
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||
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begin
|
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TfrxComponent(Obj1).Top := frxStrToFloat(String(AValue));
|
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continue;
|
||
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end;
|
||
|
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'w':
|
||
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begin
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TfrxComponent(Obj1).Width := frxStrToFloat(String(AValue));
|
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continue;
|
||
|
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end;
|
||
|
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'h':
|
||
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begin
|
||
|
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TfrxComponent(Obj1).Height := frxStrToFloat(String(AValue));
|
||
|
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continue;
|
||
|
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end;
|
||
|
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end;
|
||
|
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end
|
||
|
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else
|
||
|
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begin
|
||
|
|
if AName = 'Text' then
|
||
|
|
begin
|
||
|
|
if Obj1 is TStrings then
|
||
|
|
begin
|
||
|
|
{$IFNDEF Delphi12}
|
||
|
|
if not FOldFormat then
|
||
|
|
{$IFDEF FPC}
|
||
|
|
TStrings(Obj1).Text := String(frxXMLToStr(AValue))
|
||
|
|
{$ELSE}
|
||
|
|
TStrings(Obj1).Text := String(UTF8Decode(frxXMLToStr(AValue)))
|
||
|
|
{$ENDIF}
|
||
|
|
|
||
|
|
else
|
||
|
|
{$ENDIF}
|
||
|
|
TStrings(Obj1).Text := frxXMLToStr(AValue);
|
||
|
|
continue;
|
||
|
|
end
|
||
|
|
else if Obj1 is {$IFDEF Delphi10}TfrxWideStrings{$ELSE}TWideStrings{$ENDIF} then
|
||
|
|
begin
|
||
|
|
{$IFDEF Delphi10}TfrxWideStrings{$ELSE}TWideStrings{$ENDIF}(Obj1).Text := frxXMLToStr(AValue);
|
||
|
|
continue;
|
||
|
|
end
|
||
|
|
else if Obj1 is TfrxCustomMemoView then
|
||
|
|
begin
|
||
|
|
{$IFDEF Delphi12}
|
||
|
|
if FOldFormat then
|
||
|
|
TfrxCustomMemoView(Obj1).Text := frxXMLToStr(Utf8Decode(AnsiString(AValue)))
|
||
|
|
else TfrxCustomMemoView(Obj1).Text := frxXMLToStr(AValue);
|
||
|
|
{$ELSE}
|
||
|
|
{$IFDEF FPC}
|
||
|
|
TfrxCustomMemoView(Obj1).Text := frxXMLToStr(AValue);
|
||
|
|
{$ELSE}
|
||
|
|
TfrxCustomMemoView(Obj1).Text := Utf8Decode(frxXMLToStr(AValue));
|
||
|
|
{$ENDIF}
|
||
|
|
{$ENDIF}
|
||
|
|
continue;
|
||
|
|
end
|
||
|
|
end
|
||
|
|
else if AName = 'PropData' then
|
||
|
|
begin
|
||
|
|
{$IFDEF FPC}
|
||
|
|
if (AValue = '0556616C75650600') then //for null cat-variable
|
||
|
|
AValue := '0556616C7565060764656661756C74';
|
||
|
|
{$ENDIF}
|
||
|
|
DoNonPublishedProps(AValue);
|
||
|
|
continue;
|
||
|
|
end
|
||
|
|
else if (Obj1 is TfrxReport) and (AName = 'Name') then
|
||
|
|
continue;
|
||
|
|
end;
|
||
|
|
|
||
|
|
p := GetPropInfo(Obj1.ClassInfo, String(AName));
|
||
|
|
if (p <> nil) and (p.SetProc <> nil) then
|
||
|
|
case p.PropType^.Kind of
|
||
|
|
tkInteger, tkSet, tkChar, tkWChar
|
||
|
|
{$IFDEF FPC}, tkUChar{$ENDIF}:
|
||
|
|
SetOrdProp(Obj1, p, StrToInt(String(AValue)));
|
||
|
|
{$IFDEF DEL16ORFPC}
|
||
|
|
tkInt64:
|
||
|
|
SetOrdProp(Obj1, p, StrToInt64(String(AValue)));
|
||
|
|
{$ENDIF}
|
||
|
|
tkEnumeration{$IFDEF FPC}, tkBool{$ENDIF}:
|
||
|
|
begin
|
||
|
|
Val(String(AValue), j, code);
|
||
|
|
if code = 0 then
|
||
|
|
SetOrdProp(Obj1, p, j) else
|
||
|
|
{$IFDEF FPC}
|
||
|
|
SetOrdProp(Obj1, p, GetEnumValue(p.PropType, String(AValue)));
|
||
|
|
{$ELSE}
|
||
|
|
SetOrdProp(Obj1, p, GetEnumValue(p.PropType^, String(AValue)));
|
||
|
|
{$ENDIF}
|
||
|
|
end;
|
||
|
|
|
||
|
|
tkFloat:
|
||
|
|
SetFloatProp(Obj1, p, frxStrToFloat(String(AValue)));
|
||
|
|
|
||
|
|
tkString, tkLString{$IFDEF DEL12ORFPC}{$ELSE}, tkWString{$ENDIF}
|
||
|
|
{$IFDEF FPC}, tkAString{$ENDIF}:
|
||
|
|
{$IFNDEF Delphi12}
|
||
|
|
if not FOldFormat then
|
||
|
|
{$IFDEF FPC}
|
||
|
|
SetStrProp(Obj1, p, String(frxXMLToStr(AValue))) else
|
||
|
|
{$ELSE}
|
||
|
|
SetStrProp(Obj1, p, String(UTF8Decode(frxXMLToStr(AValue)))) else
|
||
|
|
{$ENDIF}
|
||
|
|
|
||
|
|
{$ENDIF}
|
||
|
|
SetStrProp(Obj1, p, String(frxXMLToStr(AValue)));
|
||
|
|
{$IFDEF DEL12ORFPC}
|
||
|
|
tkUString, tkWString:
|
||
|
|
SetStrProp(Obj1, p, frxXMLToStr(AValue));
|
||
|
|
{$ENDIF}
|
||
|
|
tkClass:
|
||
|
|
AddFixup(Obj1, p, String(AValue));
|
||
|
|
|
||
|
|
tkVariant:
|
||
|
|
SetVariantProp(Obj1, p, frxXMLToStr(AValue));
|
||
|
|
end;
|
||
|
|
except
|
||
|
|
on E: Exception do
|
||
|
|
FErrors.Add(E.Message);
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
{ this is the almost the same code like in original IsStoredProp }
|
||
|
|
{ starts from XE3 IsStoredProp check every property for attributes }
|
||
|
|
{ but original code cycle each property again, }
|
||
|
|
{ so we have cylce in cycle for each property name }
|
||
|
|
{ it slows down report preparation almost twice }
|
||
|
|
{ as we don't use attributes we're using lite version here }
|
||
|
|
{ we should check this code for every new version of RTL }
|
||
|
|
{$IFDEF DELPHI17}
|
||
|
|
function IsStoredPropRTTI(Instance: TObject; aPropInfo: PPropInfo): Boolean;
|
||
|
|
type
|
||
|
|
TStoredProc = function : Boolean of object;
|
||
|
|
TStoredIndexProc = function (Index: Integer): Boolean of object;
|
||
|
|
var
|
||
|
|
Method: TMethod;
|
||
|
|
StProc: Pointer;
|
||
|
|
begin
|
||
|
|
StProc := aPropInfo^.StoredProc;
|
||
|
|
if (UIntPtr(StProc) and (not NativeUInt($FF))) = 0 then
|
||
|
|
Exit(Boolean(UIntPtr(StProc) and $FF));
|
||
|
|
if ((IntPtr(StProc) and PROPSLOT_MASK) = PROPSLOT_FIELD) then
|
||
|
|
Result := Boolean(PNativeInt(Pointer(PByte(Instance) + (IntPtr(StProc) and not PROPSLOT_MASK)))^)
|
||
|
|
else
|
||
|
|
begin
|
||
|
|
if (IntPtr(StProc) and PROPSLOT_MASK) = PROPSLOT_VIRTUAL then
|
||
|
|
Method.Code := PPointer(PNativeUInt(Instance)^ + (UIntPtr(StProc) and $FFFF))^
|
||
|
|
else
|
||
|
|
Method.Code := StProc;
|
||
|
|
Method.Data := Instance;
|
||
|
|
{$IFNDEF DELPHI20}
|
||
|
|
Result := TStoredProc(Method)()
|
||
|
|
{$ELSE}
|
||
|
|
if aPropInfo^.Index = Low(aPropInfo^.Index) then
|
||
|
|
Result := TStoredProc(Method)()
|
||
|
|
else
|
||
|
|
Result := TStoredIndexProc(Method)(aPropInfo^.Index);
|
||
|
|
{$ENDIF}
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
{$ENDIF}
|
||
|
|
|
||
|
|
function TfrxXMLSerializer.ObjToXML(Obj: TPersistent; const Add: String = '';
|
||
|
|
Ancestor: TPersistent = nil): String;
|
||
|
|
var
|
||
|
|
TypeInfo: PTypeInfo;
|
||
|
|
PropCount: Integer;
|
||
|
|
PropList: PPropList;
|
||
|
|
i: Integer;
|
||
|
|
s: String;
|
||
|
|
ws: WideString;
|
||
|
|
Flag, writeNonPublishedProperties: Boolean;
|
||
|
|
|
||
|
|
procedure DoOrdProp;
|
||
|
|
var
|
||
|
|
Value: frxInteger;
|
||
|
|
|
||
|
|
function IsDefault: Boolean;
|
||
|
|
begin
|
||
|
|
if Ancestor <> nil then
|
||
|
|
Result := Value = GetOrdProp(Ancestor, PropList[i])
|
||
|
|
else
|
||
|
|
Result := Value = PropList[i].Default;
|
||
|
|
end;
|
||
|
|
|
||
|
|
begin
|
||
|
|
Value := GetOrdProp(Obj, PropList[i]);
|
||
|
|
if not IsDefault or FSerializeDefaultValues then
|
||
|
|
{$IFDEF DEL16ORFPC}
|
||
|
|
if PropList[i].PropType^.Kind = tkInt64 then
|
||
|
|
s := IntToStr(Value)
|
||
|
|
else
|
||
|
|
{$ENDIF}
|
||
|
|
if PropList[i].PropType^.Kind = tkEnumeration then
|
||
|
|
{$IFDEF FPC}
|
||
|
|
s := GetEnumName(PropList[i].PropType, Integer(Value))
|
||
|
|
{$ELSE}
|
||
|
|
s := GetEnumName(PropList[i].PropType^, Integer(Value))
|
||
|
|
{$ENDIF}
|
||
|
|
else
|
||
|
|
s := IntToStr(Integer(Value));
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure DoFloatProp;
|
||
|
|
var
|
||
|
|
Value: Extended;
|
||
|
|
|
||
|
|
function IsDefault: Boolean;
|
||
|
|
begin
|
||
|
|
if Ancestor <> nil then
|
||
|
|
Result := Abs(Value - GetFloatProp(Ancestor, PropList[i])) < 1e-6
|
||
|
|
else
|
||
|
|
Result := False;
|
||
|
|
end;
|
||
|
|
|
||
|
|
begin
|
||
|
|
Value := GetFloatProp(Obj, PropList[i]);
|
||
|
|
// commented out due to bug with tfrxmemoview.linespacing=0
|
||
|
|
if not IsDefault or FSerializeDefaultValues then
|
||
|
|
s := FloatToStr(Value);
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure DoStrProp;
|
||
|
|
var
|
||
|
|
Value: String;
|
||
|
|
|
||
|
|
function IsDefault: Boolean;
|
||
|
|
begin
|
||
|
|
if Ancestor <> nil then
|
||
|
|
Result := Value = GetStrProp(Ancestor, PropList[i])
|
||
|
|
else
|
||
|
|
Result := Value = '';
|
||
|
|
end;
|
||
|
|
|
||
|
|
begin
|
||
|
|
Value := GetStrProp(Obj, PropList[i]);
|
||
|
|
if not IsDefault or FSerializeDefaultValues then
|
||
|
|
s := frxStrToXML(Value);
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure DoVariantProp;
|
||
|
|
var
|
||
|
|
Value: Variant;
|
||
|
|
|
||
|
|
function IsDefault: Boolean;
|
||
|
|
begin
|
||
|
|
if Ancestor <> nil then
|
||
|
|
Result := Value = GetVariantProp(Ancestor, PropList[i])
|
||
|
|
else
|
||
|
|
Result := False;
|
||
|
|
end;
|
||
|
|
|
||
|
|
begin
|
||
|
|
Value := GetVariantProp(Obj, PropList[i]);
|
||
|
|
if not IsDefault or FSerializeDefaultValues then
|
||
|
|
s := frxStrToXML(VarToStr(Value));
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure DoClassProp;
|
||
|
|
var
|
||
|
|
FClass: TClass;
|
||
|
|
FComp, FAncComp: TComponent;
|
||
|
|
FObj, FAncObj: TPersistent;
|
||
|
|
begin
|
||
|
|
{$IFDEF FPC}
|
||
|
|
FClass := GetTypeData(PropList[i].PropType).ClassType;
|
||
|
|
{$ELSE}
|
||
|
|
FClass := GetTypeData(PropList[i].PropType^).ClassType;
|
||
|
|
{$ENDIF}
|
||
|
|
FObj := TPersistent(GetOrdProp(Obj, PropList[i]));
|
||
|
|
if FClass.InheritsFrom(TComponent) and
|
||
|
|
((FObj = nil) or not(csSubComponent in TComponent(FObj).ComponentStyle)) then
|
||
|
|
begin
|
||
|
|
FComp := TComponent(FObj);
|
||
|
|
if Ancestor <> nil then
|
||
|
|
FAncComp := TComponent(GetOrdProp(Ancestor, PropList[i]))
|
||
|
|
else
|
||
|
|
FAncComp := nil;
|
||
|
|
|
||
|
|
if Ancestor <> nil then
|
||
|
|
begin
|
||
|
|
if (FComp = nil) and (FAncComp = nil) then Exit;
|
||
|
|
if (FComp <> nil) and (FAncComp <> nil) then
|
||
|
|
if CompareText(FComp.Name, FAncComp.Name) = 0 then Exit;
|
||
|
|
if (FComp = nil) and (FAncComp <> nil) then
|
||
|
|
begin
|
||
|
|
s := 'nil';
|
||
|
|
Exit;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
if FComp <> nil then
|
||
|
|
s := frxGetFullName(FOwner, FComp);
|
||
|
|
end
|
||
|
|
else if FClass.InheritsFrom(TPersistent) then
|
||
|
|
begin
|
||
|
|
if Ancestor <> nil then
|
||
|
|
FAncObj := TPersistent(GetOrdProp(Ancestor, PropList[i]))
|
||
|
|
else
|
||
|
|
FAncObj := nil;
|
||
|
|
|
||
|
|
if FObj is TStrings then
|
||
|
|
begin
|
||
|
|
if (Ancestor <> nil) and not FSaveAncestorOnly then
|
||
|
|
if TStrings(FObj).Text = TStrings(FAncObj).Text then
|
||
|
|
Exit;
|
||
|
|
{$IFDEF Delphi12}
|
||
|
|
// s := UTF8Encode(TStrings(FObj).Text);
|
||
|
|
s := TStrings(FObj).Text;
|
||
|
|
{$ELSE}
|
||
|
|
s := TStrings(FObj).Text;
|
||
|
|
{$ENDIF}
|
||
|
|
if (Length(s) >= 2) and
|
||
|
|
(s[Length(s) - 1] = #13) and (s[Length(s)] = #10) then
|
||
|
|
Delete(s, Length(s) - 1, 2);
|
||
|
|
|
||
|
|
{$IFDEF UNIX} // delete lineending
|
||
|
|
if (Length(s) >= 1) and
|
||
|
|
(s[Length(s)] = #10) then
|
||
|
|
Delete(s, Length(s), 1);
|
||
|
|
{$ENDIF}
|
||
|
|
|
||
|
|
s := ' ' + Add + String(PropList[i].Name) + '.Text="' +
|
||
|
|
frxStrToXML(s) + '"';
|
||
|
|
|
||
|
|
end
|
||
|
|
else if FObj is {$IFDEF Delphi10}TfrxWideStrings{$ELSE}TWideStrings{$ENDIF} then
|
||
|
|
begin
|
||
|
|
// skip, handle separately
|
||
|
|
end
|
||
|
|
else
|
||
|
|
s := ObjToXML(FObj, Add + String(PropList[i].Name) + '.', FAncObj);
|
||
|
|
Flag := True;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure DoNonPublishedProps;
|
||
|
|
var
|
||
|
|
wr: TWriter;
|
||
|
|
ms, AncMs: TMemoryStream;
|
||
|
|
begin
|
||
|
|
{$IFDEF DELPHI16}
|
||
|
|
ActivateClassGroup(TControl);
|
||
|
|
{$ENDIF}
|
||
|
|
ms := TMemoryStream.Create;
|
||
|
|
try
|
||
|
|
wr := TWriter.Create(ms, 4096);
|
||
|
|
wr.Root := FOwner;
|
||
|
|
|
||
|
|
try
|
||
|
|
THackPersistent(Obj).DefineProperties(wr);
|
||
|
|
finally
|
||
|
|
wr.Free;
|
||
|
|
end;
|
||
|
|
|
||
|
|
if ms.Size > 0 then
|
||
|
|
begin
|
||
|
|
if Ancestor <> nil then
|
||
|
|
begin
|
||
|
|
AncMs := TMemoryStream.Create;
|
||
|
|
try
|
||
|
|
wr := TWriter.Create(AncMs, 4096);
|
||
|
|
wr.Root := FOwner;
|
||
|
|
|
||
|
|
try
|
||
|
|
THackPersistent(Ancestor).DefineProperties(wr);
|
||
|
|
finally
|
||
|
|
wr.Free;
|
||
|
|
end;
|
||
|
|
if (frxStreamCRC32(ms) = frxStreamCRC32(AncMs)) and not FSaveAncestorOnly then
|
||
|
|
Exit;
|
||
|
|
finally
|
||
|
|
AncMs.Free;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
s := frxStreamToString(ms);
|
||
|
|
Result := Result + ' ' + Add + 'PropData="' + s + '"';
|
||
|
|
end;
|
||
|
|
finally
|
||
|
|
ms.Free;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
begin
|
||
|
|
Result := '';
|
||
|
|
if Obj = nil then Exit;
|
||
|
|
|
||
|
|
TypeInfo := Obj.ClassInfo;
|
||
|
|
PropCount := GetTypeData(TypeInfo).PropCount;
|
||
|
|
GetMem(PropList, PropCount * SizeOf(PPropInfo));
|
||
|
|
GetPropInfos(TypeInfo, PropList);
|
||
|
|
|
||
|
|
try
|
||
|
|
if Obj is TfrxComponent then
|
||
|
|
begin
|
||
|
|
TfrxComponent(Obj).IsWriting := True;
|
||
|
|
if (Ancestor = nil) and Assigned(FOnGetAncestor) then
|
||
|
|
FOnGetAncestor(TfrxComponent(Obj).Name, Ancestor);
|
||
|
|
end;
|
||
|
|
if Ancestor is TfrxComponent then
|
||
|
|
begin
|
||
|
|
TfrxComponent(Ancestor).IsWriting := True;
|
||
|
|
if FSaveAncestorOnly then
|
||
|
|
Obj := Ancestor;
|
||
|
|
end;
|
||
|
|
|
||
|
|
for i := 0 to PropCount - 1 do
|
||
|
|
begin
|
||
|
|
s := '';
|
||
|
|
Flag := False;
|
||
|
|
{$IFDEF DELPHI17}
|
||
|
|
if IsStoredPropRTTI(Obj, PropList[i]) then
|
||
|
|
{$ELSE}
|
||
|
|
if IsStoredProp(Obj, PropList[i]) then
|
||
|
|
{$ENDIF}
|
||
|
|
case PropList[i].PropType^.Kind of
|
||
|
|
{$IFDEF DEL16ORFPC}
|
||
|
|
tkInt64,
|
||
|
|
{$IFDEF FPC}
|
||
|
|
tkBool,
|
||
|
|
{$ENDIF}
|
||
|
|
{$ENDIF}
|
||
|
|
tkInteger, tkSet, tkChar, tkWChar, tkEnumeration:
|
||
|
|
DoOrdProp;
|
||
|
|
|
||
|
|
tkFloat:
|
||
|
|
DoFloatProp;
|
||
|
|
|
||
|
|
tkString, tkLString, tkWString{$IFDEF DEL12ORFPC}, tkUString{$ENDIF}
|
||
|
|
{$IFDEF FPC}, tkAString{$ENDIF}:
|
||
|
|
DoStrProp;
|
||
|
|
|
||
|
|
tkClass:
|
||
|
|
DoClassProp;
|
||
|
|
|
||
|
|
tkVariant:
|
||
|
|
DoVariantProp;
|
||
|
|
end;
|
||
|
|
|
||
|
|
if s <> '' then
|
||
|
|
if Flag then
|
||
|
|
Result := Result + s
|
||
|
|
else
|
||
|
|
Result := Result + ' ' + Add + String(PropList[i].Name) + '="' + s + '"';
|
||
|
|
end;
|
||
|
|
|
||
|
|
if Obj is TfrxCustomMemoView then
|
||
|
|
if (Ancestor = nil) or FSaveAncestorOnly or
|
||
|
|
(TfrxCustomMemoView(Obj).Text <> TfrxCustomMemoView(Ancestor).Text) then
|
||
|
|
begin
|
||
|
|
ws := TfrxCustomMemoView(Obj).Text;
|
||
|
|
if (Length(ws) >= 2) and
|
||
|
|
(ws[Length(ws) - 1] = #13) and (ws[Length(ws)] = #10) then
|
||
|
|
Delete(ws, Length(ws) - 1, 2);
|
||
|
|
|
||
|
|
{$IFDEF UNIX} // delete LineEnding
|
||
|
|
if (Length(ws) >= 1) and
|
||
|
|
(ws[Length(ws)] = #10) then
|
||
|
|
Delete(ws, Length(ws), 1);
|
||
|
|
{$ENDIF}
|
||
|
|
|
||
|
|
|
||
|
|
{$IFDEF Delphi12}
|
||
|
|
Result := Result + ' Text="' + frxStrToXML(ws) + '"';
|
||
|
|
{$ELSE}
|
||
|
|
{$IFDEF FPC}
|
||
|
|
Result := Result + ' Text="' + frxStrToXML(ws) + '"';
|
||
|
|
{$ELSE}
|
||
|
|
Result := Result + ' Text="' + frxStrToXML(Utf8Encode(ws)) + '"';
|
||
|
|
{$ENDIF}
|
||
|
|
{$ENDIF}
|
||
|
|
end;
|
||
|
|
|
||
|
|
writeNonPublishedProperties := True;
|
||
|
|
if Obj is TfrxComponent then
|
||
|
|
writeNonPublishedProperties := not (csHandlesNestedProperties in TfrxComponent(Obj).frComponentStyle) or not FHandleNestedProperties;
|
||
|
|
|
||
|
|
if writeNonPublishedProperties then
|
||
|
|
DoNonPublishedProps;
|
||
|
|
|
||
|
|
finally
|
||
|
|
if Obj is TfrxComponent then
|
||
|
|
TfrxComponent(Obj).IsWriting := False;
|
||
|
|
if Ancestor is TfrxComponent then
|
||
|
|
TfrxComponent(Ancestor).IsWriting := False;
|
||
|
|
FreeMem(PropList, PropCount * SizeOf(PPropInfo));
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure TfrxXMLSerializer.ReadRootComponent(Root: TfrxComponent;
|
||
|
|
XMLItem: TfrxXMLItem = nil);
|
||
|
|
var
|
||
|
|
XMLDoc: TfrxXMLDocument;
|
||
|
|
CompList: TList;
|
||
|
|
SaveParent: TfrxComponent;
|
||
|
|
|
||
|
|
procedure DoRead(Item: TfrxXMLItem; Owner: TfrxComponent);
|
||
|
|
var
|
||
|
|
i: Integer;
|
||
|
|
c: TfrxComponent;
|
||
|
|
IsAncestor: Boolean;
|
||
|
|
begin
|
||
|
|
|
||
|
|
if(CompareText(Item.Name, 'FrxCustomData') = 0) then
|
||
|
|
begin
|
||
|
|
if Assigned(FGetCustomDataEvent) then
|
||
|
|
FGetCustomDataEvent(Item);
|
||
|
|
Exit;
|
||
|
|
end;
|
||
|
|
|
||
|
|
{$IFDEF DELPHI16}
|
||
|
|
ActivateClassGroup(TControl);
|
||
|
|
{$ENDIF}
|
||
|
|
IsAncestor := CompareText(Item.Name, 'inherited') = 0;
|
||
|
|
if not IsAncestor then
|
||
|
|
try
|
||
|
|
FindClass(String(Item.Name));
|
||
|
|
except
|
||
|
|
FErrors.Add(frxResources.Get('xrCantFindClass') + ' ' + String(Item.Name));
|
||
|
|
Exit;
|
||
|
|
end;
|
||
|
|
|
||
|
|
if Owner <> nil then
|
||
|
|
begin
|
||
|
|
if FIgnoreName then
|
||
|
|
c := nil
|
||
|
|
else
|
||
|
|
c := FOwner.FindComponent(String(Item.Prop['Name'])) as TfrxComponent;
|
||
|
|
if not IsAncestor and (c = nil) then
|
||
|
|
begin
|
||
|
|
c := TfrxComponent(FindClass(String(Item.Name)).NewInstance);
|
||
|
|
c.Create(Owner);
|
||
|
|
end
|
||
|
|
else if IsAncestor and Assigned(c) then
|
||
|
|
begin
|
||
|
|
// fix original creation order in child reports
|
||
|
|
SaveParent := c.Parent;
|
||
|
|
c.Parent := nil;
|
||
|
|
c.Parent := SaveParent;
|
||
|
|
end;
|
||
|
|
end
|
||
|
|
else
|
||
|
|
c := Root;
|
||
|
|
|
||
|
|
if c <> nil then
|
||
|
|
begin
|
||
|
|
c.IsLoading := True;
|
||
|
|
XMLToObj(Item.Text, c);
|
||
|
|
CompList.Add(c);
|
||
|
|
|
||
|
|
for i := 0 to Item.Count - 1 do
|
||
|
|
begin
|
||
|
|
if FHandleNestedProperties then
|
||
|
|
if (csHandlesNestedProperties in c.frComponentStyle) and c.ReadNestedProperty(Item[i]) then continue;
|
||
|
|
DoRead(Item[i], c);
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure DoLoaded;
|
||
|
|
var
|
||
|
|
i: Integer;
|
||
|
|
c: TfrxComponent;
|
||
|
|
begin
|
||
|
|
for i := 0 to CompList.Count - 1 do
|
||
|
|
begin
|
||
|
|
c := CompList[i];
|
||
|
|
c.IsLoading := False;
|
||
|
|
if not (c is TfrxReport) then
|
||
|
|
THackComponent(c).Loaded;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
begin
|
||
|
|
if Owner = nil then
|
||
|
|
Owner := Root;
|
||
|
|
XMLDoc := nil;
|
||
|
|
CompList := TList.Create;
|
||
|
|
|
||
|
|
if XMLItem = nil then
|
||
|
|
begin
|
||
|
|
XMLDoc := TfrxXMLDocument.Create;
|
||
|
|
XMLItem := XMLDoc.Root;
|
||
|
|
try
|
||
|
|
XMLDoc.LoadFromStream(FStream);
|
||
|
|
FOldFormat := XMLDoc.OldVersion;
|
||
|
|
except
|
||
|
|
XMLDoc.Free;
|
||
|
|
CompList.Free;
|
||
|
|
raise;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
FReader.Root := FOwner;
|
||
|
|
FReader.BeginReferences;
|
||
|
|
try
|
||
|
|
DoRead(XMLItem, nil);
|
||
|
|
FixupReferences;
|
||
|
|
DoLoaded;
|
||
|
|
finally
|
||
|
|
if XMLDoc <> nil then
|
||
|
|
XMLDoc.Free;
|
||
|
|
CompList.Free;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure TfrxXMLSerializer.WriteRootComponent(Root: TfrxComponent;
|
||
|
|
SaveChildren: Boolean = True; XMLItem: TfrxXMLItem = nil);
|
||
|
|
var
|
||
|
|
XMLDoc: TfrxXMLDocument;
|
||
|
|
|
||
|
|
procedure DoWrite(Item: TfrxXMLItem; ARoot: TfrxComponent);
|
||
|
|
var
|
||
|
|
i: Integer;
|
||
|
|
lAncestor: TPersistent;
|
||
|
|
begin
|
||
|
|
lAncestor := nil;
|
||
|
|
if ARoot.IsAncestor and Assigned(FOnGetAncestor) then
|
||
|
|
begin
|
||
|
|
Item.Name := 'inherited';
|
||
|
|
FOnGetAncestor(TfrxComponent(ARoot).Name, lAncestor);
|
||
|
|
end
|
||
|
|
else
|
||
|
|
Item.Name := ARoot.ClassName;
|
||
|
|
if (ARoot = Root) or IgnoreName then
|
||
|
|
Item.Text := ObjToXML(ARoot)
|
||
|
|
else
|
||
|
|
Item.Text := 'Name="' + ARoot.Name + '"' + ObjToXML(ARoot);
|
||
|
|
if FHandleNestedProperties and (csHandlesNestedProperties in ARoot.frComponentStyle) then
|
||
|
|
ARoot.WriteNestedProperties(Item, lAncestor);
|
||
|
|
if SaveChildren then
|
||
|
|
for i := 0 to ARoot.Objects.Count - 1 do
|
||
|
|
DoWrite(Item.Add, ARoot.Objects[i]);
|
||
|
|
end;
|
||
|
|
|
||
|
|
begin
|
||
|
|
if Owner = nil then
|
||
|
|
Owner := Root;
|
||
|
|
XMLDoc := nil;
|
||
|
|
|
||
|
|
if XMLItem = nil then
|
||
|
|
begin
|
||
|
|
XMLDoc := TfrxXMLDocument.Create;
|
||
|
|
XMLItem := XMLDoc.Root;
|
||
|
|
XMLDoc.AutoIndent := True;
|
||
|
|
end;
|
||
|
|
|
||
|
|
try
|
||
|
|
DoWrite(XMLItem, Root);
|
||
|
|
if Assigned(FOnSaveCustomDataEvent) then
|
||
|
|
begin
|
||
|
|
XMLItem := XMLDoc.Root;
|
||
|
|
XMLItem := XMLItem.Add;
|
||
|
|
XMLItem.Name := 'FrxCustomData';
|
||
|
|
FOnSaveCustomDataEvent(XMLItem);
|
||
|
|
end;
|
||
|
|
|
||
|
|
if XMLDoc <> nil then
|
||
|
|
XMLDoc.SaveToStream(FStream);
|
||
|
|
finally
|
||
|
|
if XMLDoc <> nil then
|
||
|
|
XMLDoc.Free;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
function TfrxXMLSerializer.ReadComponent(Root: TfrxComponent): TfrxComponent;
|
||
|
|
var
|
||
|
|
rd: TfrxXMLReader;
|
||
|
|
RootItem: TfrxXMLItem;
|
||
|
|
begin
|
||
|
|
rd := TfrxXMLReader.Create(FStream);
|
||
|
|
RootItem := TfrxXMLItem.Create;
|
||
|
|
|
||
|
|
try
|
||
|
|
rd.ReadRootItem(RootItem, False);
|
||
|
|
Result := ReadComponentStr(Root, RootItem.Name + ' ' + RootItem.Text);
|
||
|
|
finally
|
||
|
|
rd.Free;
|
||
|
|
RootItem.Free;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure TfrxXMLSerializer.WriteComponent(c: TfrxComponent; Ancestor: TPersistent);
|
||
|
|
var
|
||
|
|
s: AnsiString;
|
||
|
|
begin
|
||
|
|
{$IFDEF Delphi12}
|
||
|
|
s := '<' + UTF8Encode(WriteComponentStr(c, Ancestor)) + '/>';
|
||
|
|
{$ELSE}
|
||
|
|
s := '<' + WriteComponentStr(c, Ancestor) + '/>';
|
||
|
|
{$ENDIF}
|
||
|
|
FStream.Write(s[1], Length(s));
|
||
|
|
end;
|
||
|
|
|
||
|
|
function TfrxXMLSerializer.ReadComponentStr(Root: TfrxComponent;
|
||
|
|
s: String; DontFixup: Boolean = False): TfrxComponent;
|
||
|
|
var
|
||
|
|
n: Integer;
|
||
|
|
s1: String;
|
||
|
|
begin
|
||
|
|
{$IFDEF DELPHI16}
|
||
|
|
ActivateClassGroup(TControl);
|
||
|
|
{$ENDIF}
|
||
|
|
Owner := Root;
|
||
|
|
if Trim(String(s)) = '' then
|
||
|
|
Result := nil
|
||
|
|
else
|
||
|
|
begin
|
||
|
|
n := Pos(' ', s);
|
||
|
|
s1 := Copy(s, n + 1, MaxInt);
|
||
|
|
Delete(s, n, MaxInt);
|
||
|
|
|
||
|
|
Result := TfrxComponent(FindClass(s).NewInstance);
|
||
|
|
Result.Create(Root);
|
||
|
|
|
||
|
|
FReader.Root := Root;
|
||
|
|
FReader.BeginReferences;
|
||
|
|
try
|
||
|
|
Result.IsLoading := True;
|
||
|
|
XMLToObj(s1, Result);
|
||
|
|
finally
|
||
|
|
if DontFixup then
|
||
|
|
begin
|
||
|
|
FReader.EndReferences;
|
||
|
|
ClearFixups;
|
||
|
|
end
|
||
|
|
else
|
||
|
|
FixupReferences;
|
||
|
|
Result.IsLoading := False;
|
||
|
|
if not (Result is TfrxReport) then
|
||
|
|
THackComponent(Result).Loaded;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
end;
|
||
|
|
|
||
|
|
function TfrxXMLSerializer.WriteComponentStr(c: TfrxComponent; Ancestor: TPersistent): String;
|
||
|
|
begin
|
||
|
|
Result := c.ClassName + ObjToXML(c, '', Ancestor);
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure TfrxXMLSerializer.ReadPersistentStr(Root: TComponent;
|
||
|
|
Obj: TPersistent; const s: String);
|
||
|
|
begin
|
||
|
|
FReader.Root := Root;
|
||
|
|
FReader.BeginReferences;
|
||
|
|
XMLToObj(s, Obj);
|
||
|
|
FixupReferences;
|
||
|
|
end;
|
||
|
|
|
||
|
|
procedure TfrxXMLSerializer.CopyFixupList(FixList: TList);
|
||
|
|
var
|
||
|
|
i: Integer;
|
||
|
|
function CopyItem: TfrxFixupItem;
|
||
|
|
var
|
||
|
|
Item: TfrxFixupItem;
|
||
|
|
begin
|
||
|
|
Item := TfrxFixupItem(FFixups[i]);
|
||
|
|
Result := TfrxFixupItem.Create;
|
||
|
|
Result.Obj := Item.Obj;
|
||
|
|
Result.PropInfo := Item.PropInfo;
|
||
|
|
Result.Value := Item.Value;
|
||
|
|
end;
|
||
|
|
begin
|
||
|
|
if FixList = nil then exit;
|
||
|
|
for i := 0 to FFixups.Count - 1 do
|
||
|
|
FixList.Add(CopyItem);
|
||
|
|
end;
|
||
|
|
|
||
|
|
end.
|
||
|
|
|