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https://gitlab.com/freepascal.org/lazarus/lazarus.git
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fixed streaming TDataModule in programs
git-svn-id: trunk@2491 -
This commit is contained in:
mattias
parent
8573cc7387
commit
f2da2ebf95
258
lcl/controls.pp
258
lcl/controls.pp
@ -156,55 +156,6 @@ const
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mrLast = mrYesToAll;
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mrLast = mrYesToAll;
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{$IFNDEF UseFCLDataModule}
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type
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{ TDataModule }
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TDataModule = class(TComponent)
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private
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FDesignSize: TPoint;
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FDesignOffset: TPoint;
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FOnCreate: TNotifyEvent;
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FOnDestroy: TNotifyEvent;
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FOldCreateOrder: Boolean;
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procedure ReadHeight(Reader: TReader);
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procedure ReadHorizontalOffset(Reader: TReader);
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procedure ReadVerticalOffset(Reader: TReader);
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procedure ReadWidth(Reader: TReader);
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procedure WriteWidth(Writer: TWriter);
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procedure WriteHorizontalOffset(Writer: TWriter);
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procedure WriteVerticalOffset(Writer: TWriter);
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procedure WriteHeight(Writer: TWriter);
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protected
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procedure DoCreate; virtual;
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procedure DoDestroy; virtual;
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procedure DefineProperties(Filer: TFiler); override;
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procedure GetChildren(Proc: TGetChildProc; Root: TComponent); override;
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function HandleCreateException: Boolean; dynamic;
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procedure ReadState(Reader: TReader); override;
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public
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constructor Create(TheOwner: TComponent); override;
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constructor CreateNew(TheOwner: TComponent; CreateMode: Integer); virtual;
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destructor Destroy; override;
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procedure AfterConstruction; override;
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procedure BeforeDestruction; override;
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property DesignOffset: TPoint read FDesignOffset write FDesignOffset;
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property DesignSize: TPoint read FDesignSize write FDesignSize;
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property OldCreateOrder: Boolean read FOldCreateOrder write FOldCreateOrder;
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published
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property OnCreate: TNotifyEvent read FOnCreate write FOnCreate;
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property OnDestroy: TNotifyEvent read FOnDestroy write FOnDestroy;
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end;
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const
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AddDataModule: procedure (DataModule: TDataModule) of object = nil;
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RemoveDataModule: procedure (DataModule: TDataModule) of object = nil;
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ApplicationHandleException: procedure (Sender: TObject) of object = nil;
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ApplicationShowException: procedure (E: Exception) of object = nil;
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{$ENDIF}
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type
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type
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TWinControl = class;
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TWinControl = class;
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TControl = class;
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TControl = class;
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@ -1471,212 +1422,6 @@ begin
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Result := IdentToInt(Ident, Cursor, Cursors);
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Result := IdentToInt(Ident, Cursor, Cursors);
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end;
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end;
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{$IFNDEF UseFCLDataModule}
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{ TDataModule }
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constructor TDataModule.Create(TheOwner: TComponent);
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begin
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writeln('TDataModule.Create START');
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//GlobalNameSpace.BeginWrite;
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try
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CreateNew(TheOwner,0);
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if (ClassType <> TDataModule) and not (csDesigning in ComponentState) then
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begin
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if not InitInheritedComponent(Self, TDataModule) then
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raise EResNotFound.CreateFmt(lisLCLResourceSNotFound, [ClassName]);
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if OldCreateOrder then DoCreate;
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end;
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writeln('TDataModule.Create END');
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finally
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//GlobalNameSpace.EndWrite;
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end;
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end;
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procedure TDataModule.AfterConstruction;
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begin
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writeln('TDataModule.AfterConstruction');
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if not OldCreateOrder then DoCreate;
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end;
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constructor TDataModule.CreateNew(TheOwner: TComponent; CreateMode: Integer);
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begin
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writeln('TDataModule.CreateNew START');
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inherited Create(TheOwner);
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if Assigned(AddDataModule) and (CreateMode >= 0) then
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AddDataModule(Self);
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writeln('TDataModule.CreateNew END');
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end;
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procedure TDataModule.BeforeDestruction;
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begin
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writeln('TDataModule.BeforeDestruction START');
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//GlobalNameSpace.BeginWrite;
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Destroying;
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RemoveFixupReferences(Self, '');
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if not OldCreateOrder then DoDestroy;
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writeln('TDataModule.BeforeDestruction END');
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end;
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destructor TDataModule.Destroy;
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begin
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writeln('TDataModule.Destroy START');
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if not (csDestroying in ComponentState) then
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; //GlobalNameSpace.BeginWrite;
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try
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if OldCreateOrder then DoDestroy;
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if Assigned(RemoveDataModule) then
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RemoveDataModule(Self);
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inherited Destroy;
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finally
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//GlobalNameSpace.EndWrite;
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end;
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writeln('TDataModule.Destroy END');
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end;
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procedure TDataModule.DoCreate;
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begin
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if Assigned(FOnCreate) then
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try
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FOnCreate(Self);
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except
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begin
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writeln('TDataModule.DoCreate A');
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if not HandleCreateException then
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raise;
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end;
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end;
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end;
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procedure TDataModule.DoDestroy;
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begin
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if Assigned(FOnDestroy) then
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try
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FOnDestroy(Self);
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except
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begin
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writeln('TDataModule.DoDestroy A');
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if Assigned(ApplicationHandleException) then
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ApplicationHandleException(Self);
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end;
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end;
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end;
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procedure TDataModule.DefineProperties(Filer: TFiler);
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var
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Ancestor: TDataModule;
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function DoWriteWidth: Boolean;
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begin
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Result := True;
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if Ancestor <> nil then Result := FDesignSize.X <> Ancestor.FDesignSize.X;
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end;
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function DoWriteHorizontalOffset: Boolean;
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begin
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if Ancestor <> nil then
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Result := FDesignOffset.X <> Ancestor.FDesignOffset.X else
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Result := FDesignOffset.X <> 0;
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end;
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function DoWriteVerticalOffset: Boolean;
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begin
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if Ancestor <> nil then
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Result := FDesignOffset.Y <> Ancestor.FDesignOffset.Y else
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Result := FDesignOffset.Y <> 0;
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end;
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function DoWriteHeight: Boolean;
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begin
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Result := True;
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if Ancestor <> nil then Result := FDesignSize.Y <> Ancestor.FDesignSize.Y;
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end;
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begin
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inherited DefineProperties(Filer);
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Ancestor := TDataModule(Filer.Ancestor);
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Filer.DefineProperty('Height', @ReadHeight, @WriteHeight, DoWriteHeight);
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Filer.DefineProperty('HorizontalOffset', @ReadHorizontalOffset,
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@WriteHorizontalOffset, DoWriteHorizontalOffset);
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Filer.DefineProperty('VerticalOffset', @ReadVerticalOffset,
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@WriteVerticalOffset, DoWriteVerticalOffset);
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Filer.DefineProperty('Width', @ReadWidth, @WriteWidth, DoWriteWidth);
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end;
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procedure TDataModule.GetChildren(Proc: TGetChildProc; Root: TComponent);
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var
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I: Integer;
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OwnedComponent: TComponent;
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begin
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inherited GetChildren(Proc, Root);
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if Root = Self then begin
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for I := 0 to ComponentCount - 1 do
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begin
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OwnedComponent := Components[I];
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if not OwnedComponent.HasParent then Proc(OwnedComponent);
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end;
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end;
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end;
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function TDataModule.HandleCreateException: Boolean;
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begin
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writeln('TDataModule.HandleCreateException A');
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if Assigned(ApplicationHandleException) then
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begin
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ApplicationHandleException(Self);
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Result := True;
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end
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else
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Result := False;
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end;
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procedure TDataModule.ReadState(Reader: TReader);
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begin
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FOldCreateOrder := false;
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inherited ReadState(Reader);
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end;
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procedure TDataModule.ReadWidth(Reader: TReader);
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begin
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FDesignSize.X := Reader.ReadInteger;
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end;
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procedure TDataModule.ReadHorizontalOffset(Reader: TReader);
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begin
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FDesignOffset.X := Reader.ReadInteger;
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end;
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procedure TDataModule.ReadVerticalOffset(Reader: TReader);
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begin
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FDesignOffset.Y := Reader.ReadInteger;
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end;
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procedure TDataModule.ReadHeight(Reader: TReader);
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begin
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FDesignSize.Y := Reader.ReadInteger;
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end;
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procedure TDataModule.WriteWidth(Writer: TWriter);
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begin
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Writer.WriteInteger(FDesignSize.X);
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end;
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procedure TDataModule.WriteHorizontalOffset(Writer: TWriter);
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begin
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Writer.WriteInteger(FDesignOffset.X);
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end;
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procedure TDataModule.WriteVerticalOffset(Writer: TWriter);
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begin
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Writer.WriteInteger(FDesignOffset.Y);
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end;
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procedure TDataModule.WriteHeight(Writer: TWriter);
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begin
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Writer.WriteInteger(FDesignSize.Y);
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end;
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{$ENDIF}
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// turn off before includes !!
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// turn off before includes !!
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{$IFDEF ASSERT_IS_ON}
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{$IFDEF ASSERT_IS_ON}
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{$UNDEF ASSERT_IS_ON}
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{$UNDEF ASSERT_IS_ON}
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@ -1713,6 +1458,9 @@ end.
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{ =============================================================================
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{ =============================================================================
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$Log$
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$Log$
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Revision 1.121 2003/06/01 21:37:18 mattias
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fixed streaming TDataModule in programs
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Revision 1.120 2003/06/01 21:09:09 mattias
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Revision 1.120 2003/06/01 21:09:09 mattias
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implemented datamodules
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implemented datamodules
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