fe54bdf114
* source/rtl/dbedit.prg
* source/rtl/tgetint.prg
* source/rtl/tlabel.prg
* source/rtl/treport.prg
* Changed '&( "{||" + c + "}" )' expressions to
hb_macroBlock() calls.
To me these places seemed safe to change, but
please verify me.
* source/rtl/alert.prg
* source/rtl/tbcolumn.prg
* source/rtl/tget.prg
* Minor formatting.
512 lines
15 KiB
Plaintext
512 lines
15 KiB
Plaintext
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* HBLabelForm class and __LabelForm()
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*
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* Copyright 2000 Luiz Rafael Culik <Culik@sl.conex.net>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#include "hbclass.ch"
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#include "common.ch"
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#include "error.ch"
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#include "fileio.ch"
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#include "inkey.ch"
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#define F_OK 0 // No error
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#define F_EMPTY -3 // File is empty
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#define _LF_SAMPLES 2 // "Do you want more samples?"
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#define _LF_YN 12 // "Y/N"
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#define LBL_REMARK 1 // Character, remark from label file
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#define LBL_HEIGHT 2 // Numeric, label height
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#define LBL_WIDTH 3 // Numeric, label width
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#define LBL_LMARGIN 4 // Numeric, left margin
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#define LBL_LINES 5 // Numeric, lines between labels
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#define LBL_SPACES 6 // Numeric, spaces between labels
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#define LBL_ACROSS 7 // Numeric, number of labels across
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#define LBL_FIELDS 8 // Array of Field arrays
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#define LBL_COUNT 8 // Numeric, number of label fields
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// Field array definitions ( one array per field )
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#define LF_EXP 1 // Block, field expression
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#define LF_TEXT 2 // Character, text of field expression
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#define LF_BLANK 3 // Logical, compress blank fields, .T.=Yes .F.=No
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#define LF_COUNT 3 // Numeric, number of elements in field array
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#define BUFFSIZE 1034 // Size of label file
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#define FILEOFFSET 74 // Start of label content descriptions
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#define FIELDSIZE 60
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#define REMARKOFFSET 2
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#define REMARKSIZE 60
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#define HEIGHTOFFSET 62
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#define HEIGHTSIZE 2
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#define WIDTHOFFSET 64
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#define WIDTHSIZE 2
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#define LMARGINOFFSET 66
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#define LMARGINSIZE 2
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#define LINESOFFSET 68
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#define LINESSIZE 2
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#define SPACESOFFSET 70
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#define SPACESSIZE 2
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#define ACROSSOFFSET 72
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#define ACROSSSIZE 2
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CREATE CLASS HBLabelForm
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VAR aLabelData AS ARRAY INIT {}
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VAR aBandToPrint AS ARRAY
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VAR cBlank AS STRING INIT ""
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VAR lOneMoreBand AS LOGICAL INIT .T.
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VAR nCurrentCol AS NUMERIC // The current column in the band
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METHOD New( cLBLName, lPrinter, cAltFile, lNoConsole, bFor, ;
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bWhile, nNext, nRecord, lRest, lSample )
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METHOD ExecuteLabel()
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METHOD SampleLabels()
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METHOD LoadLabel( cLblFile )
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ENDCLASS
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METHOD New( cLBLName, lPrinter, cAltFile, lNoConsole, bFor, ;
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bWhile, nNext, nRecord, lRest, lSample ) CLASS HBLabelForm
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LOCAL lPrintOn := .F. // PRINTER status
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LOCAL lConsoleOn // CONSOLE status
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LOCAL cExtraFile, lExtraState // EXTRA file status
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LOCAL xBreakVal, lBroke := .F.
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LOCAL err
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LOCAL OldMargin
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LOCAL cExt
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::aBandToPrint := {} // Array(5)
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::nCurrentCol := 1
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// Resolve parameters
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IF cLBLName == NIL
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err := ErrorNew()
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err:severity := ES_ERROR
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err:genCode := EG_ARG
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err:subSystem := "FRMLBL"
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Eval(ErrorBlock(), err)
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ELSE
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/* NOTE: CA-Cl*pper does an RTrim() on the filename here,
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but in Harbour we're using _SET_TRIMFILENAME. [vszakats] */
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IF Set( _SET_DEFEXTENSIONS )
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hb_FNameSplit( cLBLName, NIL, NIL, @cExt )
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IF Empty( cExt )
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cLBLName += ".lbl"
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ENDIF
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ENDIF
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ENDIF
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DEFAULT lPrinter TO .F.
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DEFAULT lSample TO .F.
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// Set output devices
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IF lPrinter // To the printer
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lPrintOn := Set( _SET_PRINTER, lPrinter )
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ENDIF
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lConsoleOn := Set( _SET_CONSOLE )
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Set( _SET_CONSOLE, ! ( lNoConsole .OR. !lConsoleOn ) )
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IF !Empty(cAltFile) // To file
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lExtraState := Set( _SET_EXTRA, .T. )
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cExtraFile := Set( _SET_EXTRAFILE, cAltFile )
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ENDIF
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OldMargin := Set( _SET_MARGIN, 0)
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BEGIN SEQUENCE
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::aLabelData := ::LoadLabel( cLBLName ) // Load the (.lbl) into an array
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// Add to the left margin if a SET MARGIN has been defined
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::aLabelData[ LBL_LMARGIN ] := ::aLabelData[ LBL_LMARGIN ] + OldMargin
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ASize( ::aBandToPrint, Len( ::aLabelData[ LBL_FIELDS ]))
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AFill( ::aBandToPrint, Space( ::aLabelData[ LBL_LMARGIN ] ) )
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// Create enough space for a blank record
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::cBlank := Space( ::aLabelData[ LBL_WIDTH ] + ::aLabelData[ LBL_SPACES ] )
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// Handle sample labels
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IF lSample
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::SampleLabels()
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ENDIF
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// Execute the actual label run based on matching records
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DBEval( {|| ::ExecuteLabel() }, bFor, bWhile, nNext, nRecord, lRest )
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// Print the last band if there is one
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IF ::lOneMoreBand
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// Print the band
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AEval( ::aBandToPrint, { | BandLine | PrintIt( BandLine ) } )
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ENDIF
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RECOVER USING xBreakVal
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lBroke := .T.
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END SEQUENCE
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// Clean up and leave
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::aLabelData := {} // Recover the space
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::aBandToPrint := {}
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::nCurrentCol := 1
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::cBlank := ""
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::lOneMoreBand :=.T.
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// clean up
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Set( _SET_PRINTER, lPrintOn ) // Set the printer back to prior state
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Set( _SET_CONSOLE, lConsoleOn ) // Set the console back to prior state
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IF !Empty(cAltFile) // Set extrafile back
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Set( _SET_EXTRAFILE, cExtraFile )
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Set( _SET_EXTRA, lExtraState )
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ENDIF
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IF lBroke
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BREAK xBreakVal // continue breaking
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ENDIF
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Set( _SET_MARGIN, OldMargin )
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RETURN Self
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METHOD ExecuteLabel() CLASS HBLabelForm
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LOCAL nField, nMoreLines, aBuffer := {}, cBuffer
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LOCAL v
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// Load the current record into aBuffer
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FOR nField := 1 TO Len( ::aLabelData[ LBL_FIELDS ] )
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if ::aLabelData[ LBL_FIELDS, nField ] != NIL
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v := Eval( ::aLabelData[ LBL_FIELDS, nField, LF_EXP ] )
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cBuffer := PadR( v, ::aLabelData[ LBL_WIDTH ] )
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cBuffer := cBuffer + Space( ::aLabelData[ LBL_SPACES ] )
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if ( ::aLabelData[ LBL_FIELDS, nField, LF_BLANK ] )
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if ( !Empty( cBuffer ) )
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AAdd( aBuffer, cBuffer )
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endif
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else
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AAdd( aBuffer, cBuffer )
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endif
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else
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AAdd( aBuffer, NIL )
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endif
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NEXT
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ASize( aBuffer, Len( ::aLabelData[ LBL_FIELDS ] ) )
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// Add aBuffer to ::aBandToPrint
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FOR nField := 1 TO Len( ::aLabelData[ LBL_FIELDS ] )
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IF aBuffer[ nField ] == NIL
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::aBandToPrint[ nField ] := ::aBandToPrint[ nField ] + ::cBlank
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ELSE
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::aBandToPrint[ nField ] := ::aBandToPrint[ nField ] + aBuffer[ nField ]
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ENDIF
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NEXT
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IF ::nCurrentCol == ::aLabelData[ LBL_ACROSS ]
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// trim
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FOR nField := 1 TO Len( ::aBandToPrint )
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::aBandToPrint[ nField ] := RTrim( ::aBandToPrint[ nField ] )
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NEXT
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::lOneMoreBand := .F.
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::nCurrentCol := 1
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// Print the band
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AEval( ::aBandToPrint, { | BandLine | PrintIt( BandLine ) } )
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nMoreLines := ::aLabelData[ LBL_HEIGHT ] - Len( ::aBandToPrint )
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IF nMoreLines > 0
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FOR nField := 1 TO nMoreLines
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PrintIt()
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NEXT
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ENDIF
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IF ::aLabelData[ LBL_LINES ] > 0
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// Add the spaces between the label lines
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FOR nField := 1 TO ::aLabelData[ LBL_LINES ]
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PrintIt()
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NEXT
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ENDIF
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// Clear out the band
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AFill( ::aBandToPrint, Space( ::aLabelData[ LBL_LMARGIN ] ) )
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ELSE
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::lOneMoreBand := .T.
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::nCurrentCol := ::nCurrentCol + 1
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ENDIF
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RETURN Self
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METHOD SampleLabels() CLASS HBLabelForm
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LOCAL nGetKey, lMoreSamples := .T., nField
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LOCAL aBand := {}
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// Create the sample label row
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ASize( aBand, ::aLabelData[ LBL_HEIGHT ] )
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AFill( aBand, Space( ::aLabelData[ LBL_LMARGIN ] ) +;
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Replicate( Replicate( "*", ;
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::aLabelData[ LBL_WIDTH ] ) + ;
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Space( ::aLabelData[ LBL_SPACES ] ), ;
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::aLabelData[ LBL_ACROSS ] ) )
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// Prints sample labels
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DO WHILE lMoreSamples
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// Print the samples
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AEval( aBand, { | BandLine | PrintIt( BandLine ) } )
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IF ::aLabelData[ LBL_LINES ] > 0
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// Add the spaces between the label lines
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FOR nField := 1 TO ::aLabelData[ LBL_LINES ]
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PrintIt()
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NEXT nField
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ENDIF
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// Prompt for more
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@ Row(), 0 SAY __NatMsg( _LF_SAMPLES ) + " (" + __NatMsg( _LF_YN ) + ")"
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nGetKey := Inkey( 0 )
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@ Row(), Col() SAY Chr( nGetKey )
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IF Row() == MaxRow()
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hb_scroll( 0, 0, MaxRow(), MaxCol(), 1 )
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@ MaxRow(), 0 SAY ""
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ELSE
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@ Row() + 1, 0 SAY ""
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ENDIF
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IF __NatIsNegative( Chr( nGetKey ) ) // Don't give sample labels
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lMoreSamples := .F.
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ENDIF
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ENDDO
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RETURN Self
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METHOD LoadLabel( cLblFile ) CLASS HBLabelForm
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LOCAL i, j := 0 // Counters
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LOCAL cBuff := Space( BUFFSIZE ) // File buffer
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LOCAL nHandle := 0 // File handle
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LOCAL nReadCount := 0 // Bytes read from file
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LOCAL lStatus := .F. // Status
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LOCAL nOffset := FILEOFFSET // Offset into file
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LOCAL nFileError := F_OK // File error
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LOCAL cFieldText := "" // Text expression container
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LOCAL err // error object
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LOCAL cDefPath // contents of SET DEFAULT string
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LOCAL aPaths // array of paths
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LOCAL nPathIndex := 0 // iteration counter
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// Create and initialize default label array
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LOCAL aLabel[ LBL_COUNT ]
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aLabel[ LBL_REMARK ] := Space( 60 ) // Label remark
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aLabel[ LBL_HEIGHT ] := 5 // Label height
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aLabel[ LBL_WIDTH ] := 35 // Label width
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aLabel[ LBL_LMARGIN ] := 0 // Left margin
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aLabel[ LBL_LINES ] := 1 // Lines between labels
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aLabel[ LBL_SPACES ] := 0 // Spaces between labels
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aLabel[ LBL_ACROSS ] := 1 // Number of labels across
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aLabel[ LBL_FIELDS ] := {} // Array of label fields
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// Open the label file
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nHandle := FOpen( cLblFile )
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IF ! Empty( nFileError := FError() ) .AND. !( "\" $ cLblFile .OR. ":" $ cLblFile )
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// Search through default path; attempt to open label file
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cDefPath := Set( _SET_DEFAULT )
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cDefPath := StrTran( cDefPath, ",", ";" )
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aPaths := ListAsArray( cDefPath, ";" )
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FOR nPathIndex := 1 TO Len( aPaths )
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nHandle := FOpen( aPaths[ nPathIndex ] + "\" + cLblFile )
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// if no error is reported, we have our label file
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IF Empty( nFileError := FError() )
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EXIT
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ENDIF
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NEXT nPathIndex
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ENDIF
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// File error
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IF nFileError != F_OK
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err := ErrorNew()
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err:severity := ES_ERROR
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err:genCode := EG_OPEN
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err:subSystem := "FRMLBL"
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err:osCode := nFileError
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err:filename := cLblFile
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Eval(ErrorBlock(), err)
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ENDIF
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// If we got this far, assume the label file is open and ready to go
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// and so go ahead and read it
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nReadCount := FRead( nHandle, @cBuff, BUFFSIZE )
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// READ ok?
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IF nReadCount == 0
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nFileError := F_EMPTY // File is empty
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ELSE
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nFileError := FError() // Check for DOS errors
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ENDIF
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IF nFileError == 0
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// Load label dimension into aLabel
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aLabel[ LBL_REMARK ] := SubStr(cBuff, REMARKOFFSET, REMARKSIZE)
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aLabel[ LBL_HEIGHT ] := BIN2W(SubStr(cBuff, HEIGHTOFFSET, HEIGHTSIZE))
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aLabel[ LBL_WIDTH ] := BIN2W(SubStr(cBuff, WIDTHOFFSET, WIDTHSIZE))
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aLabel[ LBL_LMARGIN] := BIN2W(SubStr(cBuff, LMARGINOFFSET, LMARGINSIZE))
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aLabel[ LBL_LINES ] := BIN2W(SubStr(cBuff, LINESOFFSET, LINESSIZE))
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aLabel[ LBL_SPACES ] := BIN2W(SubStr(cBuff, SPACESOFFSET, SPACESSIZE))
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aLabel[ LBL_ACROSS ] := BIN2W(SubStr(cBuff, ACROSSOFFSET, ACROSSSIZE))
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FOR i := 1 TO aLabel[ LBL_HEIGHT ]
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// Get the text of the expression
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cFieldText := RTrim( SubStr( cBuff, nOffset, FIELDSIZE ) )
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nOffset :=nOffSet + 60
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IF !Empty( cFieldText )
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AAdd( aLabel[ LBL_FIELDS ], {} )
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// Field expression
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AAdd( aLabel[ LBL_FIELDS, i ], hb_macroBlock( cFieldText ) )
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// Text of field
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AAdd( aLabel[ LBL_FIELDS, i ], cFieldText )
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// Compression option
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AAdd( aLabel[ LBL_FIELDS, i ], .T. )
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ELSE
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AAdd( aLabel[ LBL_FIELDS ], NIL )
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ENDIF
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NEXT
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// Close file
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FClose( nHandle )
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nFileError := FError()
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ENDIF
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RETURN aLabel
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FUNCTION __LabelForm( cLBLName, lPrinter, cAltFile, lNoConsole, bFor, ;
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bWhile, nNext, nRecord, lRest, lSample )
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RETURN HBLabelForm():New( cLBLName, lPrinter, cAltFile, lNoConsole, bFor, ;
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bWhile, nNext, nRecord, lRest, lSample )
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STATIC PROCEDURE PrintIt( cString )
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DEFAULT cString TO ""
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QQOut( cString )
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QOut()
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RETURN
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STATIC FUNCTION ListAsArray( cList, cDelimiter )
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LOCAL nPos
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LOCAL aList := {} // Define an empty array
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LOCAL lDelimLast := .F.
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DEFAULT cDelimiter TO ","
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DO WHILE Len( cList ) != 0
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nPos := At( cDelimiter, cList )
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IF nPos == 0
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nPos := Len( cList )
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ENDIF
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IF SubStr( cList, nPos, 1 ) == cDelimiter
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lDelimLast := .T.
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AAdd( aList, SubStr( cList, 1, nPos - 1 ) ) // Add a new element
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ELSE
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lDelimLast := .F.
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AAdd( aList, SubStr( cList, 1, nPos ) ) // Add a new element
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ENDIF
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cList := SubStr( cList, nPos + 1 )
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ENDDO
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IF lDelimLast
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AAdd( aList, "" )
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ENDIF
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RETURN aList // Return the array
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