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|
unit Unit1;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, FileUtil, PrintersDlgs, Forms, Controls, Graphics, Dialogs,
StdCtrls, ExtCtrls, CairoPrinter;
type
{ TForm1 }
TForm1 = class(TForm)
btnUnderline: TButton;
Button1: TButton;
btn24217: TButton;
btn19435: TButton;
btnPrintAll: TButton;
btnOther: TButton;
chkTests: TCheckGroup;
PrintDialog1: TPrintDialog;
radOtherAlign: TRadioGroup;
radOtherAngle: TRadioGroup;
procedure btn19435Click(Sender: TObject);
procedure btnOtherClick(Sender: TObject);
procedure btnPrintAllClick(Sender: TObject);
procedure btnUnderlineClick(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure btn24217Click(Sender: TObject);
procedure chkTestsItemClick(Sender: TObject; Index: integer);
procedure FormPaint(Sender: TObject);
private
procedure Draw19435(cnv: TCanvas; XDPI,YDPI: Integer);
procedure Draw24217(cnv: TCanvas; XDPI,YDPI: Integer);
procedure DrawOther(cnv: TCanvas; XDPI,YDPI: Integer);
procedure DrawUnderline(cnv: TCanvas; XDPI,YDPI: Integer);
function GetOtherAlignment:TAlignment;
function GetOtherLayout:TTextLayout;
procedure GetReferencePoint(const r: TRect; cnv:TCanvas; out x, y: Integer);
procedure PrintOther(aFileName: string = 'other'; aBackend: TCairoBackend = cbPDF);
procedure PrintUnderline(aFileName: string = 'underline'; aBackend: TCairoBackend = cbPDF);
public
{ public declarations }
end;
var
Form1: TForm1;
implementation
uses types,printers;
{$R *.lfm}
{ TForm1 }
const str='Text For Extent: Прывітаньне!';
sTextout='TextOut()';
sTextRect='TextRect()';
procedure TForm1.Button1Click(Sender: TObject);
begin
if PrintDialog1.Execute then
begin
Printer.Title:='AcairoTest';
Printer.BeginDoc;
with Printer do
Draw24217(Canvas, XDPI, YDPI);
Printer.EndDoc;
end;
end;
procedure TForm1.btn19435Click(Sender: TObject);
var
CairoPrinter: TCairoFilePrinter;
begin
CairoPrinter := TCairoFilePrinter.create;
//CairoPrinter.CairoBackend:=cbPS;
CairoPrinter.CairoBackend:=cbPDF;
CairoPrinter.FileName:='19435';
CairoPrinter.BeginDoc;
with CairoPrinter do
Draw19435(Canvas, XDPI, YDPI);
CairoPrinter.EndDoc;
CairoPrinter.Free;
end;
procedure TForm1.btnOtherClick(Sender: TObject);
begin
PrintOther;
end;
procedure TForm1.btnPrintAllClick(Sender: TObject);
procedure PrintBackend(aBackend: TCairoBackend);
var
angle: Integer;
angleIndex: Integer;
alignIndex: Integer;
aFileName, lstr,astr: string;
CairoPrinter: TCairoFilePrinter;
begin
CairoPrinter := TCairoFilePrinter.create;
CairoPrinter.CairoBackend:=aBackend;
CairoPrinter.FileName:='testing other';
CairoPrinter.BeginDoc;
for angleIndex:=0 to 3 do begin
radOtherAngle.ItemIndex := angleIndex;
for alignIndex := 0 to 8 do begin
radOtherAlign.ItemIndex := alignIndex;
//angle := StrToInt(radOtherAngle.Items[angleIndex]);
//WriteStr(lstr, GetOtherLayout);
//WriteStr(astr, GetOtherAlignment);
//aFileName := format('other_angle(%.3d)_alignment(%s)_layout(%s)',
// [angle, lstr, astr]);
with CairoPrinter do
DrawOther(Canvas, XDPI, YDPI);
if not ((angleIndex=3) and (alignIndex=8)) then
CairoPrinter.NewPage;
end;
end;
CairoPrinter.EndDoc;
CairoPrinter.Free;
end;
begin
if chkTests.Checked[2] then begin
PrintBackend(cbPDF);
PrintBackend(cbPS);
end;
end;
procedure TForm1.btnUnderlineClick(Sender: TObject);
begin
PrintUnderline;
end;
procedure TForm1.btn24217Click(Sender: TObject);
var
CairoPrinter: TCairoFilePrinter;
begin
CairoPrinter := TCairoFilePrinter.create;
//CairoPrinter.CairoBackend:=cbPS;
CairoPrinter.CairoBackend:=cbPDF;
CairoPrinter.FileName:='salida';
CairoPrinter.BeginDoc;
with CairoPrinter do
Draw24217(Canvas, XDPI, YDPI);
CairoPrinter.EndDoc;
CairoPrinter.Free;
end;
procedure TForm1.chkTestsItemClick(Sender: TObject; Index: integer);
begin
Invalidate;
end;
procedure TForm1.FormPaint(Sender: TObject);
var
ResX,ResY: Integer;
begin
ResX := Screen.PixelsPerInch;
ResY := ResX;
if chkTests.Checked[0] then Draw24217(Canvas, ResX, ResY);
if chkTests.Checked[1] then Draw19435(Canvas, ResX, ResY);
if chkTests.Checked[2] then DrawOther(Canvas, ResX, ResY);
if chkTests.Checked[3] then DrawUnderline(Canvas, ResX, ResY);
end;
procedure TForm1.Draw19435(cnv: TCanvas; XDPI, YDPI: Integer);
const
prefix = 'Arabic: ';
var
sz: TSize;
x,y: Integer;
fx: Integer;
begin
with cnv do
begin
Font.Color := clDefault;
Font.Name := 'Sans';
Font.Size := 24;
cnv.Brush.Style := bsClear;
x := Round(XDPI);
y := Round(YDPI);
sz := TextExtent(PREFIX);
fx := Round(250*XDPI/300); // for demostration purposes this should make both
// texts overlap both in screen and in printer
TextOut(x, y, 'English with font ');
// alternative 1, depend on font size, for Size=24 both texts overlaps
inc(y, sz.cy);
TextOut(x, y, PREFIX);
TextOut(x+fx, y, 'اللغة العربية');
// alternative 2, measure prefix
inc(y, sz.cy);
TextOut(x, y, PREFIX);
TextOut(x+sz.cx, y, 'اللغة العربية');
// alternative 3, simpler
inc(y, sz.cy);
Textout(x, y, PREFIX + 'اللغة العربية');
end;
end;
procedure TForm1.Draw24217(cnv: TCanvas; XDPI, YDPI: Integer);
var
sz:TSize;
r:tRect;
i:integer;
kx,ky:double;
begin
cnv.Font.Name:='Sans';
cnv.Font.Color := clDefault;
cnv.Pen.Color := clBlack;
cnv.Font.Size:=24;
cnv.Brush.style := bsClear;
r.Left:=round(XDPI*0.5);
r.Top:=round(YDPI*0.5);
// paint with textout
sz:=cnv.TextExtent(sTextOut);
r.Right:=r.left+sz.cx;
r.Bottom:=r.Top+sz.cy;
cnv.Rectangle(r);
cnv.TextOut(r.left,r.top,sTextOut);
// paint with TextRect
r.Top:=round(YDPI*1);
sz:=cnv.TextExtent(sTextRect);
r.Right:=r.left+sz.cx;
r.Bottom:=r.Top+sz.cy;
cnv.Rectangle(r);
cnv.Font.Color := clBlue;
cnv.TextRect(R,r.left,r.top,sTextRect);
// rotated text
r.Left:=round(XDPI*2.5);
r.Top:=round(YDPI*1);
cnv.font.Orientation:=900;
// paint with textout
sz:=cnv.TextExtent(sTextOut);
r.Right:=r.left+sz.cy;
r.Bottom:=r.Top+sz.cx;
cnv.Rectangle(r);
cnv.font.color := clDefault;
cnv.TextOut(r.left,r.bottom,sTextOut);
inc(r.Left,round(XDPI*0.5));
// paint with text rect
sz:=cnv.TextExtent(sTextRect);
r.Right:=r.left+sz.cy;
r.Bottom:=r.Top+sz.cx;
cnv.Rectangle(r);
// thsi works
//cnv.TextOut(r.left,r.bottom,sTextOut);
// thsi does not work
cnv.Font.Color := clRed;
cnv.TextRect(r,r.left,r.bottom,sTextRect);
r:=Rect((XDPI*2),(YDPI*5),(XDPI*7),(YDPI*10));
cnv.ClipRect:=r;
cnv.Clipping:=true;
kx:=(r.Right-r.Left)/1000;
ky:=(r.bottom-r.top)/1000;
cnv.MoveTo(r.Left,r.Bottom);
for i:=0 to 999 do
begin
cnv.LineTo(r.left+round(kx*i),r.Bottom-round(ky*2000*exp(-sqr(i-500)/500)));
end;
cnv.font.Orientation:=0;
cnv.font.Color := clGreen;
cnv.TextOut((XDPI*2),(YDPI*5),'Clipping does work for text!');
end;
procedure TForm1.DrawOther(cnv: TCanvas; XDPI, YDPI: Integer);
const
CTEXT='Hola';
Par =
'1.111' + LineEnding+
'0.000' + LineEnding+
'.101' + LineEnding+
'M.Unl' + LineEnding+
'.UnlM' + LineEnding+
'01.' + LineEnding+
'1.0' + LineEnding+
'.01';
BRKTEXT = 'Si tu gusto gustara del gusto que gusta mi gusto, '+
'mi gusto gustara del gusto que gusta tu gusto, '+
'PERO COMO TU GUSTO NO GUSTA DEL GUSTO QUE GUSTA MI GUSTO, '+
'MI GUSTO NO GUSTA DEL GUSTO QUE GUSTA TU GUSTO';
var
x,y: Integer;
R: TRect;
sz: TSize;
style: TTextStyle;
sL,sA: string;
begin
R := Rect(XDPI, YDPI*2, XDPI*3, round(YDPI*2.5));
cnv.Font.Name := 'Arial';
cnv.Font.Size := 40;
cnv.Font.Color := clBlue;
cnv.Pen.Color := RGBToColor($AA, $CC, $FF);
cnv.Font.Orientation:=0;
cnv.Brush.Style := bsClear;
cnv.TextRect(R, R.Left, R.Top, CTEXT);
cnv.Rectangle(R);
OffsetRect(R, 5, 5);
cnv.Pen.Color := RGBToColor($FF, $AA, $AA);
cnv.Font.Color := clRed;
cnv.TextOut(R.left, R.Top, CTEXT);
cnv.Rectangle(R);
OffsetRect(R, -5, Round(YDPI*0.5));
Cnv.Font.Size:=16;
sz := cnv.TextExtent('Line1');
cnv.Font.color := clDefault;
cnv.TextOut(R.Left, R.Top, 'Line1'); OffsetRect(R, 0, sz.cy);
cnv.TextOut(R.Left, R.Top, 'Line2'); OffsetRect(R, 0, sz.cy);
cnv.TextOut(R.Left, R.Top, 'Line3'); OffsetRect(R, 0, sz.cy);
R := Rect(XDPI*4, YDPI*2, Round(XDPI*6), round(YDPI*6));
cnv.Font.Name := 'Sans';
cnv.Font.Size := 20;
cnv.Font.Color := clGreen;
cnv.Font.Orientation := radOtherAngle.ItemIndex * 90 * 10;
cnv.Brush.Style := bsClear;
cnv.Pen.Color := clSilver;
style := cnv.TextStyle;
style.SingleLine := false;
with style do begin
Alignment := GetOtherAlignment;
Layout := GetOtherLayout;
end;
cnv.TextStyle := style;
GetReferencePoint(R, cnv, x, y);
//cnv.TextRect(R, R.Left, R.Top, Par);
cnv.TextRect(R, x, y, Par);
cnv.Rectangle(R);
R := Rect(XDPI, YDPI*7, XDPI*7, YDPI*9);
cnv.Font.Size := 30;
cnv.Font.Color := clFuchsia;
cnv.Pen.Color := clSilver;
GetReferencePoint(r, Cnv, x, y);
cnv.TextRect(R, x, y, Par);
cnv.Rectangle(R);
R := Rect(XDPI, Round(YDPI*3.5), XDPI*3, round(YDPI*6));
cnv.Font.Color := clBlue;
cnv.Font.Size := 16;
cnv.Pen.Color := clRed;
Style.Wordbreak:=true;
cnv.TextStyle := Style;
GetReferencePoint(R, cnv, x, y);
cnv.TextRect(R, x, y, BRKTEXT);
cnv.Rectangle(R);
WriteStr(sA, cnv.TextStyle.Alignment);
WriteStr(sL, cnv.TextStyle.Layout);
cnv.Font.Size := 14;
cnv.Font.Color := clMaroon;
cnv.Font.Orientation:=0;
cnv.TextOut(XDPI, YDPI*7 - Round(YDPI*0.5),
format('Alignment: "%s" Layout: "%s" Orientation: %d° ',[sA, sL, radOtherAngle.ItemIndex * 90]));
end;
procedure TForm1.DrawUnderline(cnv: TCanvas; XDPI, YDPI: Integer);
const
STEXT = 'Pájaro';
var
y: Integer;
sz: TSize;
R: TRect;
begin
// using TextOut
R := Rect(XDPI, YDPI, 0, 0);
cnv.Font.Name := 'Arial';
cnv.Font.Size := 40;
cnv.Font.Color := clBlue;
cnv.Font.Orientation:=0;
cnv.Font.Underline := false;
y := R.Top;
cnv.TextOut(R.Left, y, STEXT);
cnv.Font.Underline := true;
sz := cnv.TextExtent(STEXT);
inc(y, sz.cy);
cnv.TextOut(XDPI, y, STEXT);
cnv.Font.Underline := false;
cnv.Font.StrikeThrough := true;
inc(y, sz.cy);
cnv.TextOut(XDPI, y, STEXT);
cnv.Font.Underline := true;
cnv.Font.StrikeThrough := true;
inc(y, sz.cy);
cnv.TextOut(XDPI, y, STEXT);
// using TextRect
cnv.Font.Color:= clRed;
cnv.Font.Underline := false;
cnv.Font.StrikeThrough := false;
OffsetRect(R, 2*XDPI, 0);
R.Right := R.Left + sz.cx;
R.Bottom := R.Top + sz.cy;
cnv.TextRect(R, R.Left, R.Top, STEXT);
OffsetRect(R, 0, sz.cy);
cnv.Font.Underline := true;
cnv.Font.StrikeThrough := false;
cnv.TextRect(R, R.Left, R.Top, STEXT);
OffsetRect(R, 0, sz.cy);
cnv.Font.Underline := false;
cnv.Font.StrikeThrough := true;
cnv.TextRect(R, R.Left, R.Top, STEXT);
OffsetRect(R, 0, sz.cy);
cnv.Font.Underline := true;
cnv.Font.StrikeThrough := true;
cnv.TextRect(R, R.Left, R.Top, STEXT);
end;
function TForm1.GetOtherAlignment: TAlignment;
begin
case radOtherAlign.ItemIndex of
0,3,6: Result := taLeftJustify;
1,4,7: Result := taCenter;
else Result := taRightJustify;
end;
end;
function TForm1.GetOtherLayout: TTextLayout;
begin
case radOtherAlign.ItemIndex of
0,1,2: Result := tlTop;
3,4,5: Result := tlCenter;
else Result := tlBottom;
end;
end;
procedure TForm1.GetReferencePoint(const r: TRect; cnv: TCanvas; out x,
y: Integer);
begin
// orientation
x := r.Left;
y := r.Top;
case cnv.Font.Orientation of
0:
begin
x := r.Left;
y := r.Top;
end;
900:
begin
x := r.Left;
y := r.Bottom;
end;
1800:
begin
x := r.Right;
y := r.Bottom;
end;
2700:
begin
x := r.right;
y := r.Top;
end;
end;
end;
procedure TForm1.PrintOther(aFileName: string = 'other'; aBackend: TCairoBackend = cbPDF);
var
CairoPrinter: TCairoFilePrinter;
begin
CairoPrinter := TCairoFilePrinter.create;
//CairoPrinter.CairoBackend:=cbPS;
CairoPrinter.CairoBackend:=aBackend;
CairoPrinter.FileName:=aFileName;
CairoPrinter.BeginDoc;
with CairoPrinter do
DrawOther(Canvas, XDPI, YDPI);
CairoPrinter.EndDoc;
CairoPrinter.Free;
end;
procedure TForm1.PrintUnderline(aFileName: string = 'underline'; aBackend: TCairoBackend = cbPDF);
var
CairoPrinter: TCairoFilePrinter;
begin
CairoPrinter := TCairoFilePrinter.create;
//CairoPrinter.CairoBackend:=cbPS;
CairoPrinter.CairoBackend:=aBackend;
CairoPrinter.FileName:=aFileName;
CairoPrinter.BeginDoc;
with CairoPrinter do
DrawUnderline(Canvas, XDPI, YDPI);
CairoPrinter.EndDoc;
CairoPrinter.Free;
end;
end.
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