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Datei: Frame33.pas Sprache: Delphi

unit Frame33;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
interface
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
uses
  //----------------------------------------------------------------------------
  //local
  //----------------------------------------------------------------------------
  GenDefs,OwnUtils,OptionClass,Language,Utilities,Preview,Editor,
  //----------------------------------------------------------------------------
  //global
  //----------------------------------------------------------------------------
  Forms,Controls,ComCtrls,Tabs,Dialogs,Classes,Types,Graphics,ExtCtrls,
  PrintDialogEx,StdCtrls,SysUtils;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
const
  borderfontsize=5;
  Randlinks=150;
  RandOben=150;
  Framelinks=100;
  Frameoben=100;
  //----------------------------------------------------------------------------
  //
  //----------------------------------------------------------------------------
type
  TFrame3= class(TFrame)
    PageControl1:TPageControl;
    StatusBar1:TStatusBar;
    MiniaturTab:TTabSheet;
    DruckvorschauTab:TTabSheet;
    OpenDialog1:TOpenDialog;
    SaveDialog1:TSaveDialog;
    ExecuteTab:TTabSheet;
    Executor:TEde;
    PageNavigator:TTabSet;
    ThumbnailPreview1:TThumbnailPreview;
    PrintPreview1:TPrintPreview;
    constructor Create(Owner:TComponent);override;
    destructor Destroy;override;
    procedure CreateBorders(R:TRect);
    procedure ZoomChange(scale:integer;state:TZoomState);
    procedure PrintButtonClick(Sender:TObject);
    procedure LoadButtonClick(Sender:TObject);
    procedure PageNavigatorChange(Sender:TObject;NewTab:Integer;
      var AllowChange:Boolean);
    procedure PrintPreviewChange(Sender:TObject);
    procedure PrintPreviewBeforePrint(Sender:TObject);
    procedure PrintPreviewPrintProgress(Sender:TObject;PageNum,Progress:Integer;
      var AbortIt:Boolean);
    procedure PrintPreviewAfterPrint(Sender:TObject);
    procedure PrintPreviewBeginDoc(Sender:TObject);
    procedure PrintPreviewEndDoc(Sender:TObject);
    procedure PrintPreviewAnnotation(Sender:TObject;PageNo:Integer;
      Canvas:TCanvas);
    procedure QuerformatClick(Sender:TObject);
    procedure HochformatClick(Sender:TObject);
    procedure PrintPreviewNewPage(Sender:TObject);
    procedure PageNavigatorClick(Sender:TObject);
    procedure DruckenClick(Ty:PrintTypes;Redit:TRichEdit;Img:TImage;
      LoadedFile:JString);
    procedure PDFButtonClick(Sender:TObject);
    procedure Splitter2Moved(Sender:TObject);
    procedure Splitter1Moved(Sender:TObject);
    procedure setPreviewFull();
    procedure PrintTree(var RE:TRichEdit;Tree:TTreeView);
    procedure ZoominClick(Sender: TObject);
    procedure ZoomoutClick(Sender: TObject);
    procedure ZoomNormalClick(Sender: TObject);
  private
    procedure CreateRichTextPage;
    procedure CreateImageOnlyPage;
    procedure CreatePages;
  public
    PrintDialog2:TPrintDialogEx;
    PrintButton:TToolButton;
    Hochformat:TToolButton;
    Querformat:TToolButton;
    RE:TRichEdit;
    IM:TImage;
    PrintType:PrintTypes;
    PrintJobTitle:JString;
    PrintFile:JString;
    firstpreview:Boolean;
  end;
  //----------------------------------------------------------------------------
  //
  //----------------------------------------------------------------------------
implementation
uses
  //----------------------------------------------------------------------------
  //specific
  //----------------------------------------------------------------------------
  Variants,jpeg,Windows,Buttons,Printers;

//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
{$R *.dfm}
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
constructor TFrame3.Create(Owner:TComponent);
begin
  if Printer=nil then begin
    errorn(14,' Kein Drucker installiert');
    Exit;
  end
  else begin
    inherited Create(Owner);
    ThumbnailPreview1.PrintPreview:=PrintPreview1;
  end;
  firstpreview:=true;
  PrintDialog2:=TPrintDialogEx.Create(self);
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
destructor TFrame3.Destroy;
begin
  PrintDialog2.Free;
  ThumbnailPreview1.Free;
  PrintPreview1.Free;
  inherited Free;
end;
//----------------------------------------------------------------------------
//-   display Treeview in Richedit                                             -
//-                                                                -
//----------------------------------------------------------------------------
procedure TFrame3.PrintTree(var RE:TRichEdit;Tree:TTreeView);
  procedure printnode(lvl:Integer;N:TTreenode);
  const indent=' ';
  var
    i:Integer;
    rec:String;
    C:TTreenode;
  begin
    if N<>nil then begin
      rec:='';
      for i:=1 to lvl do
        rec:=rec+indent;
      rec:=rec+N.Text;
      RE.Lines.Add(rec);
      C:=N.getFirstChild;
      while C<>nil do begin
        printnode(lvl+1,C);
        C:=C.getNextSibling;
      end;
    end;
  end;
begin
  RE.Lines.Clear;
  printnode(0,Tree.TopItem);
end;
//----------------------------------------------------------------------------
//-   Function Drucken                                             -
//-                                                                -
//----------------------------------------------------------------------------
procedure TFrame3.DruckenClick(Ty:PrintTypes;Redit:TRichEdit;Img:TImage;
  LoadedFile:JString);
begin
  if Printer<>nil then begin
    if firstpreview then begin
      with PrintPreview1 do begin
        Zoom:=100;
        ZoomState:=zsZoomToWidth;
        Hochformat.Enabled:=Orientation=poLandscape;
        Querformat.Enabled:=Orientation=poPortrait;
        PrintJobTitle:=Application.Title+' '+ExtractFileName(PrintFile);
        DateSeparator:='.';
        if opt.R.Language=english then begin
          ShortDateFormat:='m/d/yyyy';
          DateSeparator:='/';
        end
        else
          ShortDateFormat:='d.m.yyyy';
      end;
      PrintFile:=LoadedFile;
      PrintType:=Ty;
      if Ty=Richtext then
        RE:=Redit
      else if Ty=Imageview then
        IM:=Img;
    end;
    Screen.Cursor:=crHourGlass;
    CreatePages;
    Screen.Cursor:=crDefault;
  end
end;
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
procedure TFrame3.ZoominClick(Sender: TObject);
begin
   PrintPreview1.Zoom:=(PrintPreview1.Zoom*5) div 4;
end;
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
procedure TFrame3.ZoomoutClick(Sender: TObject);
begin
   PrintPreview1.Zoom:=(PrintPreview1.Zoom div 5)*4;
end;
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------
procedure TFrame3.ZoomNormalClick(Sender: TObject);
begin
   PrintPreview1.Zoom:=100;
   PrintPreview1.ZoomState:=zsZoomToFit;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.ZoomChange(scale:integer;state:TZoomState);
begin
  PrintPreview1.Zoom:=scale;
  PrintPreview1.ZoomState:=state;
  //CreatePages;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PDFButtonClick(Sender:TObject);
begin
  if PrintPreview1.CanSaveAsPDF then begin
    SaveDialog1.FileName:=StringReplace(PrintFile,ExtractFileExt(PrintFile),'',
      [rfReplaceAll])+'.pdf';
    SaveDialog1.InitialDir:=ExtractFilePath(opt.R.Infile);
    SaveDialog1.Options:=[ofOverwritePrompt,ofPathMustExist];
    SaveDialog1.Filter:=trans(lang,33,'Akrobatdatei (*.pdf)|*.pdf');
    if SaveDialog1.Execute then
      PrintPreview1.SaveAsPDF(SaveDialog1.FileName)
  end
  else
    errorn(15,'zur Zeit nicht möglich');
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.setPreviewFull();
begin
  PrintPreview1.ZoomState:=zsZoomToFit;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PrintButtonClick(Sender:TObject);
begin
  if PrintPreview1.State=psReady then begin
    PrintPreview1.SetPrinterOptions;
    PrintPreview1.PrintJobTitle:=PrintJobTitle;
    PrintPreview1.UpdateAnnotation;
    PrintDialog2.MinPage:=1;
    PrintDialog2.FromPage:=1;
    PrintDialog2.ToPage:=PrintPreview1.TotalPages;
    PrintDialog2.MaxPage:=PrintPreview1.TotalPages;
    PrintDialog2.PrintRange:=prAllPages;
    PrintDialog2.Options:=[poPageNums,poSelection];
    PrintDialog2.PrintToFile:=false;
    PrintDialog2.Ctl3D:=true;
    if PrintDialog2.Execute then begin
      if PrintDialog2.PrintRange=prSelection then
        PrintPreview1.PrintPages(PrintPreview1.CurrentPage,
          PrintPreview1.CurrentPage)
      else
        PrintPreview1.PrintPages(PrintDialog2.FromPage,PrintDialog2.ToPage);
    end
  end;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.LoadButtonClick(Sender:TObject);
begin
  if OpenDialog1.Execute then begin
    Screen.Cursor:=crHourGlass;
    Caption:=Application.Title+' - lade aus Datei...';
    try
      PrintPreview1.LoadFromFile(OpenDialog1.FileName);
    finally
      Caption:=Application.Title;
      Screen.Cursor:=crDefault;
    end;
  end;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PageNavigatorChange(Sender:TObject;NewTab:Integer;
  var AllowChange:Boolean);
begin
  PrintPreview1.CurrentPage:=NewTab+1;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PrintPreviewChange(Sender:TObject);
begin
  while PageNavigator.Tabs.Count<PrintPreview1.TotalPages do
    PageNavigator.Tabs.Add(IntToStr(PageNavigator.Tabs.Count+1));
  while PageNavigator.Tabs.Count>PrintPreview1.TotalPages do
    PageNavigator.Tabs.Delete(PageNavigator.Tabs.Count-1);
  PageNavigator.TabIndex:=PrintPreview1.CurrentPage-1;
  if PrintPreview1.State=psCreating then
    //To be able to see and navigate pages, which are prepared so far
    Application.ProcessMessages
  else begin
    PrintButton.Enabled:=PrintPreview1.PrinterInstalled;
  end;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PrintPreviewBeginDoc(Sender:TObject);
begin
  Caption:=Application.Title+' - erzeuge Seiten...';
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PrintPreviewEndDoc(Sender:TObject);
begin
  Caption:=Application.Title;
  PrintButton.Enabled:=PrintPreview1.PrinterInstalled;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PrintPreviewBeforePrint(Sender:TObject);
begin
  Screen.Cursor:=crHourGlass;
  Caption:=Application.Title+trans(lang,34,' - bereite Druck vor...');
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PrintPreviewAfterPrint(Sender:TObject);
begin
  Caption:=Application.Title;
  Screen.Cursor:=crDefault;
  PrintButton.Enabled:=PrintPreview1.PrinterInstalled;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PrintPreviewPrintProgress(Sender:TObject;
  PageNum,Progress:Integer;var AbortIt:Boolean);
begin
  Caption:=Format(trans(lang,35,'%s - Druck Seite %d von %d (%%%d fertig)...'),
    [Application.Title,PageNum,PrintPreview1.TotalPages,Progress]);
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PrintPreviewAnnotation(Sender:TObject;PageNo:Integer;
  Canvas:TCanvas);
begin
  with PrintPreview1.PrinterPageBounds do begin
    Canvas.Pen.Width:=0;
    Canvas.Pen.Style:=psDot;
    Canvas.Pen.Color:=clLtGray;
    Canvas.MoveTo(Left,0);
    Canvas.LineTo(Left,PrintPreview1.PaperHeight);
    Canvas.MoveTo(Right,0);
    Canvas.LineTo(Right,PrintPreview1.PaperHeight);
    Canvas.MoveTo(0,Top);
    Canvas.LineTo(PrintPreview1.PaperWidth,Top);
    Canvas.MoveTo(0,Bottom);
    Canvas.LineTo(PrintPreview1.PaperWidth,Bottom);
  end;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.CreateBorders(R:TRect);
var
  partial:JString;
begin
  with PrintPreview1 do begin
    //The following line ensures one pixel pen width in any mapping mode.
    Canvas.Pen.Width:=0;
    Canvas.Brush.Style:=bsCLear;
    Canvas.Rectangle(R.Left,R.Top,R.Right,R.Bottom-borderfontsize);
    //We write also the page number under the frame.
    Canvas.Font.size:=borderfontsize;
    SetTextAlign(Canvas.Handle,TA_LEFT or TA_TOP);
    Canvas.TextOut(R.Left,R.Bottom-borderfontsize,DateToStr(date));
    SetTextAlign(Canvas.Handle,TA_CENTER or TA_TOP);
    Canvas.TextOut((R.Right-R.Left)div 2+R.Left,R.Bottom-borderfontsize,'');
    SetTextAlign(Canvas.Handle,TA_RIGHT or TA_TOP);
    Canvas.TextOut(R.Right,R.Bottom-borderfontsize,
      Format(trans(lang,36,'Seite %d'),[TotalPages+1]));
    SetTextAlign(Canvas.Handle,TA_LEFT or TA_TOP);
    Canvas.TextOut(R.Left,R.Top+Canvas.Font.Height-8,
      Application.Title+' '+Version_IDE);
    SetTextAlign(Canvas.Handle,TA_RIGHT or TA_TOP);
    partial:='';
    if Previewselected then
      partial:=trans(lang,233,'Auszug aus ');
    Canvas.TextOut(R.Right,R.Top+Canvas.Font.Height-8,
      partial+ExtractFileName(PrintFile));
  end
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PrintPreviewNewPage(Sender:TObject);
var
  R:TRect;
begin
  with PrintPreview1 do begin
    //The following line ensures one pixel pen width in any mapping mode.
    Canvas.Pen.Width:=0;
    Canvas.Brush.Style:=bsCLear;
    //We are going to draw a rectangular frame on the page with 1cm distance
    //from edges of the paper.
    R:=PageBounds;
    with ConvertXY(Framelinks,Frameoben,mmLoMetric,Units) do
      InflateRect(R,-X,-Y);
    //Canvas.Rectangle(R.Left, R.Top, R.Right, R.Bottom);
    //We write also the page number under the frame.
    Canvas.Font.size:=borderfontsize;
    //SetTextAlign(Canvas.Handle, TA_RIGHT or TA_TOP);
    //Canvas.TextOut(R.Right, R.Bottom, Format('Page %d', [TotalPages+1]));
    SetTextAlign(Canvas.Handle,TA_LEFT or TA_TOP);
    CreateBorders(R);
  end;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.CreateRichTextPage;
var
  R:TRect;
begin
  with PrintPreview1 do begin
    //Don't forget that we have already drawn a frame for the page with 1cm
    //margin. We have to exclude it from the paper size. Besides that, we
    //want to include 1cm margin for the text also.
    R:=PageBounds;
    with ConvertXY(Randlinks,RandOben,mmLoMetric,Units) do
      InflateRect(R,-X,-Y);
    PaintRichText(R,RE,0,nil);
  end;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.CreateImageOnlyPage;
var
  R:TRect;
begin
  with PrintPreview1 do begin
    //Don't forget that we have already drawn a frame for the page with 1cm
    //margin. We have to exclude it from the paper size. Besides that, we
    //want to include 5mm margin for the image also.
    R:=PageBounds;
    with ConvertXY(Randlinks,RandOben,mmLoMetric,Units) do
      InflateRect(R,-X,-Y);
    PaintGraphicEx(R,IM.Picture.Graphic,true,false,true);
  end;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.CreatePages;
begin
  Screen.Cursor:=crHourGlass;
  visible:=false;
  with PrintPreview1 do begin
    Hochformat.Enabled:=Orientation=poLandscape;
    Querformat.Enabled:=Orientation=poPortrait;
    Units:=TUnits(1);
    BeginDoc;
    try
      case PrintType of
        Richtext:
          CreateRichTextPage;
        Imageview:
          CreateImageOnlyPage
      end
    finally
      EndDoc;
    end;
  end;
  visible:=true;
  Screen.Cursor:=crDefault; { Revient toujours à normal }
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.HochformatClick(Sender:TObject);
begin
  Screen.Cursor:=crHourGlass;
  PrintPreview1.Orientation:=poPortrait;
  CreatePages();
  //PrintPreview1.UpdateAnnotation;
  Hochformat.Enabled:=false;
  Querformat.Enabled:=true;
  Screen.Cursor:=crDefault;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.QuerformatClick(Sender:TObject);
begin
  Screen.Cursor:=crHourGlass;
  PrintPreview1.Orientation:=poLandscape;
  CreatePages();
  //PrintPreview1.UpdateAnnotation;
  Hochformat.Enabled:=true;
  Querformat.Enabled:=false;
  Screen.Cursor:=crDefault;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.Splitter2Moved(Sender:TObject);
begin
  ThumbnailPreview1.Update;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.Splitter1Moved(Sender:TObject);
begin
  ThumbnailPreview1.Update;
end;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
procedure TFrame3.PageNavigatorClick(Sender:TObject);
begin
  PrintPreview1.CurrentPage:=PageNavigator.TabIndex+1;
end;
{ ------------------------------------------------------------------ }
{ -                                                                - }
{ -   Ende dieser Quelle                                           - }
{ -                                                                - }
{ ------------------------------------------------------------------ }
end.

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