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MainUnit.pas
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MainUnit.pas
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{*********************************************}
{ TeeBI Software Library }
{ PDF Export Example }
{ Copyright (c) 2015-2018 by Steema Software }
{ All Rights Reserved }
{*********************************************}
unit MainUnit;
interface
// This example generates a PDF file from a TDataItem and provides controls
// to change several properties of the PDF output.
uses
System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
FMX.Types, FMX.Controls, FMX.Forms,
FMXTee.Constants,
{$IF TeeMsg_TeeChartPalette='TeeChart'}
{$ELSE}
// TeeChart Lite !
{$MESSAGE 'TeeChart Pro version is necessary to compile this example'}
// WARNING:
(*
This example TeeBI_PDF_Export can only be compiled on a RAD Studio that has
installed the "Pro" version of TeeChart.
The FMXBI.PDF and VLCBI.PDF units require one unit that is only present in
the "Pro" version of TeeChart (VCLTee.TeePDFCanvas / FMXTee.Canvas.PDF)
*)
{$ENDIF}
{$IF CompilerVersion<=27}
{$DEFINE HASFMX20}
{$ENDIF}
{$IFNDEF HASFMX20}
FMX.Graphics, FMX.Controls.Presentation,
{$ENDIF}
FMX.Dialogs, FMX.StdCtrls, FMX.WebBrowser, FMXBI.Grid,
FMX.TabControl, FMX.Layouts, BI.Persist, FMXBI.PDF,
FMXTee.Canvas.PDF, FMX.ListBox, FMXBI.DataControl;
type
TMainPDF = class(TForm)
Layout1: TLayout;
TabControl1: TTabControl;
TabGrid: TTabItem;
TabPDF: TTabItem;
BIGrid1: TBIGrid;
WebBrowserPDF: TWebBrowser;
BCreatePDF: TButton;
CBAuto: TCheckBox;
CBPageNumbers: TCheckBox;
CBGridLines: TCheckBox;
CBHeaderBack: TCheckBox;
CBAlternate: TCheckBox;
CBAlign: TComboBox;
procedure FormCreate(Sender: TObject);
procedure BCreatePDFClick(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure TabGridClick(Sender: TObject);
private
{ Private declarations }
procedure PreparePDF(const PDF:TBIPDFExport);
public
{ Public declarations }
end;
var
MainPDF: TMainPDF;
implementation
{$R *.fmx}
uses
System.IOUtils, BI.DataItem;
const
BrushKindSolid:TBrushKind=TBrushKind.{$IF CompilerVersion<26}bkSolid{$ELSE}Solid{$ENDIF};
procedure TMainPDF.PreparePDF(const PDF:TBIPDFExport);
begin
// Header font
PDF.Header.Font.Name:='Courier New';
// Fill header background ?
if CBHeaderBack.IsChecked then
begin
PDF.Header.Font.Color:=TAlphaColors.White;
PDF.Header.Font.SizeFloat:=10;
PDF.Header.Brush.Style:=BrushKindSolid;
PDF.Header.Brush.Color:=TAlphaColors.Green;
end;
// Rows font size
PDF.RowFormat.Font.SizeFloat:=8;
if CBAlternate.IsChecked then
begin
PDF.RowFormat.Brush.Style:=BrushKindSolid;
// Paint rows in alternate background
PDF.RowFormat.Alternate.Visible:=True;
end;
// Global horizontal Alignment
case CBAlign.ItemIndex of
0 : PDF.Alignment:=TAlignment.Left;
1 : PDF.Alignment:=TAlignment.Center;
else
PDF.Alignment:=TAlignment.Right;
end;
// Footer
PDF.Footer.Text.Clear;
PDF.Footer.Text.Add('This is a footer text');
PDF.Footer.Font.Color:=TAlphaColors.Navy;
PDF.Footer.Alignment:=TAlignment.Right;
// Font Size automatic ? (auto-fit all items)
PDF.AutoWidth:=CBAuto.IsChecked;
// Document Page properties
PDF.Page.Size:=TPDFPageSize.psA4;
PDF.Page.Orientation:=TPDFPageOrientation.poPortrait;
// Page Numbers
PDF.Page.Numbering.Visible:=CBPageNumbers.IsChecked;
PDF.Page.Numbering.Font.Style:=[TFontStyle.fsItalic];
// Grid lines
PDF.GridLines.Horizontal.Visible:=CBGridLines.IsChecked;
PDF.GridLines.Vertical.Visible:=CBGridLines.IsChecked;
end;
procedure TMainPDF.TabGridClick(Sender: TObject);
begin
Layout1.Enabled := true;
end;
procedure TMainPDF.BCreatePDFClick(Sender: TObject);
var tmp : TBIPDFExport;
tmpFile : String;
begin
Layout1.Enabled := false;
// Create a PDF Export object
tmp:=TBIPDFExport.Create;
try
PreparePDF(tmp);
// Set Data item
tmp.Data:=BIGrid1.Data;
// Temporary file name to save PDF
tmpFile:=TPath.Combine(TPath.GetTempPath,'deleteme.pdf');
if TFile.Exists(tmpFile) then
TFile.Delete(tmpFile);
// Just in case, release browser locked pdf file, before saving it again
WebBrowserPDF.Navigate('about:blank');
WebBrowserPDF.FinishLoading;
// Let some time to web browser to unlock the file
//Sleep(500);
tmp.SaveToFile(tmpFile);
// Show PDF in web browser control
WebBrowserPDF.Navigate(tmpFile);
TabControl1.ActiveTab := TabPDF;
finally
tmp.Free;
end;
end;
procedure TMainPDF.FormCreate(Sender: TObject);
begin
// Load sample data
BIGrid1.Data:=TStore.Load('BISamples','SQLite_Demo')['Products'];
// Go directly to PDF preview
TabControl1.ActiveTab:=TabPDF;
BCreatePDFClick(Self);
end;
procedure TMainPDF.FormShow(Sender: TObject);
begin
if TUICommon.AutoTest then
Close;
end;
initialization
ReportMemoryLeaksOnShutdown := True;
finalization
CheckSynchronize;
end.