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{
This file is part of the Free Component Library.
Copyright (c) 2017 Michael Van Canneyt, member of the Free Pascal development team
Edit form for report shape.
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
unit frmfpreportshapeedit;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, ButtonPanel, ExtCtrls, StdCtrls, fpreport,
fpreportlclexport;
type
{ TReportShapeEditForm }
// TFPReportShapeType = (stEllipse, stCircle, stLine, stSquare, stTriangle{, stArrow}); // rectangle can be handled by Frame
// TFPReportOrientation = (orNorth, orNorthEast, orEast, orSouthEast, orSouth, orSouthWest, orWest, orNorthWest);
TReportShapeEditForm = class(TForm)
BPShape: TButtonPanel;
LPreview: TLabel;
PBPreview: TPaintBox;
RGOrientation: TRadioGroup;
RGShape: TRadioGroup;
procedure FormCloseQuery(Sender: TObject; var CanClose: boolean);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure PBPreviewPaint(Sender: TObject);
procedure RGShapeClick(Sender: TObject);
private
FRenderer : TFPReportExportCanvas;
FLayout : TFPReportLayout;
FShape: TFPReportCustomShape;
procedure FormToShape;
procedure SetShape(AValue: TFPReportCustomShape);
procedure ShapeToForm;
public
Property Shape : TFPReportCustomShape Read FShape Write SetShape;
end;
{ TDefaultReportShapeEditor }
TDefaultReportShapeEditor = Class(TFPReportElementEditor)
Class function DefaultClass: TFPReportElementClass; override;
Function Execute : Boolean; override;
end;
var
ReportShapeEditForm: TReportShapeEditForm;
implementation
{$R *.lfm}
{ TDefaultReportShapeEditor }
class function TDefaultReportShapeEditor.DefaultClass: TFPReportElementClass;
begin
Result:=TFPReportShape;
end;
function TDefaultReportShapeEditor.Execute: Boolean;
Var
F : TReportShapeEditForm;
begin
F:=TReportShapeEditForm.Create(Self);
try
F.Shape:=Self.Element as TFPReportCustomShape;
Result:=F.ShowModal=mrOK;
finally
F.Free;
end;
end;
{ TReportShapeEditForm }
procedure TReportShapeEditForm.PBPreviewPaint(Sender: TObject);
Var
P : TFPReportPoint;
O : TFPReportOrientation;
begin
P.Left:=0;
P.Top:=0;
FLayout.Left:=0;
FLayout.Top:=0;
FLayout.Width:=((pbPreview.Width-1)*cMMperInch/PixelsPerInch);
FLayout.Height:=((pbPreview.Height-1)*cMMperInch/PixelsPerInch);
if RGOrientation.ItemIndex=-1 then
O:=orNorth
else
O:=TFPReportOrientation(RGOrientation.ItemIndex);
FRenderer.Canvas:=pbPreview.Canvas;
FRenderer.HDPI:=PixelsPerInch;
FRenderer.VDPI:=PixelsPerInch;
PBPreview.Canvas.Brush.Color:=clWhite;
PBPreview.Canvas.Brush.Style:=bsSolid;
PBPreview.Canvas.Pen.Color:=clBlack;
PBPreview.Canvas.Pen.Style:=psSolid;
PBPreview.Canvas.FillRect(0,0,PBPreview.Canvas.Width-1,PBPreview.Canvas.Height-1);
Case RGShape.ItemIndex of
0 : FRenderer.RenderShapeEllipse(P,FLayout);
1 : FRenderer.RenderShapeCircle(P,FLayout);
2 : FRenderer.RenderShapeLine(P,O,FLayout);
3 : FRenderer.RenderShapeRect(P,FLayout);
4 : FRenderer.RenderShapeTriangle(P,O,FLayout);
else
PBPreview.Canvas.TextOut(10,10,Format('Unknown shape type: %d',[RGShape.ItemIndex]));
end;
end;
procedure TReportShapeEditForm.RGShapeClick(Sender: TObject);
begin
PBPreview.Invalidate;
end;
procedure TReportShapeEditForm.SetShape(AValue: TFPReportCustomShape);
begin
if FShape=AValue then Exit;
FShape:=AValue;
ShapeToForm;
end;
procedure TReportShapeEditForm.ShapeToForm;
Var
S : TFPReportShape;
begin
S:=TFPReportShape(Shape);
RGShape.ItemIndex:=Ord(S.ShapeType);
RGOrientation.ItemIndex:=Ord(S.Orientation);
PBPreview.Invalidate;
end;
procedure TReportShapeEditForm.FormCreate(Sender: TObject);
begin
FRenderer:=TFPReportExportCanvas.Create(Self);
FLayout:=TFPReportLayout.Create(Nil);
end;
procedure TReportShapeEditForm.FormToShape;
Var
S : TFPReportShape;
begin
S:=TFPReportShape(Shape);
S.ShapeType:=TFPReportShapeType(RGShape.ItemIndex);
S.Orientation:=TFPReportOrientation(RGOrientation.ItemIndex);
end;
procedure TReportShapeEditForm.FormCloseQuery(Sender: TObject; var CanClose: boolean);
begin
CanClose:=True;
FormToShape;
end;
procedure TReportShapeEditForm.FormDestroy(Sender: TObject);
begin
FreeAndNil(FRenderer);
FReeAndNil(FLayout);
end;
initialization
TDefaultReportShapeEditor.RegisterEditor;
end.
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