Error when using inherited Class from xBrowse and xBrowse si
Posted: Thu Jun 06, 2019 11:35 am
Hello,
to be able to extend and modify some functionality in xBrowse I wanted to create an inherited class of xBrowse. I'm using FWH1903 with BCC7.
As such, it works fine, but as soon as I use the original xBrowse with a Dialog, I get an error, "Error FiveWin/3 Cannot create Dialog Box: Resource: Two"
If I use the original xBrowse first, I'm not able any more to use my inherited class. So the first of both classes used, can be used. But the other one cannot be used anymore, causing a runtime error.
So I now created an example, based on the sample "foldxbrw.prg" and called it xbrw_test.prg. The inherited class is included here and is called "CLASS TCtoXbrowse FROM TXbrowse". I also copied "function XbrowseNew" from the original sourcecode and called it "Function CtoXbrowseNew". Here I modified the call "TXbrowse():New" to "TCtoXbrowse():New()"
I also modified foldxbrw.rc and saved it as xbrw_test.rc. Here the first folder "one" is now using class "TCtoXbrowse" instead of "TXbrowse"
I made a new .ch-file called ctoxbrowse.ch to be able to access the inherited class.
If these files are copied to the \samples folder and compiled there, you can see the Error.
Isn't it possible to use the original and inherited class simultaneously or am I making a mistake somewhere?
Sourcecode of "xbrw_test.prg"
Source code of "xbrw_test.rc"
Source code of "ctoxbrowse.ch"
to be able to extend and modify some functionality in xBrowse I wanted to create an inherited class of xBrowse. I'm using FWH1903 with BCC7.
As such, it works fine, but as soon as I use the original xBrowse with a Dialog, I get an error, "Error FiveWin/3 Cannot create Dialog Box: Resource: Two"
If I use the original xBrowse first, I'm not able any more to use my inherited class. So the first of both classes used, can be used. But the other one cannot be used anymore, causing a runtime error.
So I now created an example, based on the sample "foldxbrw.prg" and called it xbrw_test.prg. The inherited class is included here and is called "CLASS TCtoXbrowse FROM TXbrowse". I also copied "function XbrowseNew" from the original sourcecode and called it "Function CtoXbrowseNew". Here I modified the call "TXbrowse():New" to "TCtoXbrowse():New()"
I also modified foldxbrw.rc and saved it as xbrw_test.rc. Here the first folder "one" is now using class "TCtoXbrowse" instead of "TXbrowse"
I made a new .ch-file called ctoxbrowse.ch to be able to access the inherited class.
If these files are copied to the \samples folder and compiled there, you can see the Error.
Isn't it possible to use the original and inherited class simultaneously or am I making a mistake somewhere?
Sourcecode of "xbrw_test.prg"
Code: Select all
#include "FiveWin.ch"
#include "CtoXBrowse.ch"
#include "XBrowse.ch"
function Main()
local oDlg, oFld, oBrw1, oBrw2
local aDat1, aDat2
aDat1:={{"Row1-Col1","Row1-Col2","Row1-Col3"},;
{"Row2-Col1","Row2-Col2","Row2-Col3"},;
{"Row3-Col1","Row3-Col2","Row3-Col3"},;
{"Row4-Col1","Row4-Col2","Row4-Col3"}}
aDat2:={{"ROW1-COL1","ROW1-COL2","ROW1-COL3"},;
{"ROW2-COL1","ROW2-COL2","ROW2-COL3"},;
{"ROW3-COL1","ROW3-COL2","ROW3-COL3"},;
{"ROW4-COL1","ROW4-COL2","ROW4-COL3"}}
DEFINE DIALOG oDlg RESOURCE "Test"
REDEFINE FOLDER oFld ;
PROMPTS "One", "Two" ;
DIALOGS "One", "Two" ;
ID 100 OF oDlg
REDEFINE CTOXBROWSE oBrw1 ID 10 OF oFld:aDialogs[ 1 ] ARRAY aDat1 AUTOCOLS
REDEFINE XBROWSE oBrw2 ID 10 OF oFld:aDialogs[ 2 ] ARRAY aDat2 AUTOCOLS
oBrw1:aCols[ 2 ]:nEdittype := EDIT_BUTTON
oBrw1:aCols[ 2 ]:bEditBlock := { || MsgYesNo( "Please select" ) }
oBrw2:aCols[ 2 ]:nEdittype := EDIT_GET
ACTIVATE DIALOG oDlg CENTERED
return nil
//----------------------------------------------------------------------------//
CLASS TCtoXBrowse FROM TXbrowse
METHOD Hello() INLINE MsgInfo("Hello")
ENDCLASS
//----------------------------------------------------------------------------//
function CtoXbrowseNew( oWnd, nRow, nCol, nWidth, nHeight,;
aFlds, aHeaders, aColSizes, ;
bChange, bLDblClick, bRClick, ;
oFont, oCursor, nClrFore, nClrBack, ;
cMsg, lUpdate, cDataSrc, bWhen, ;
lDesign, bValid, lPixel, nResID, lAutoSort, lAddCols, ;
aPics, aCols, aJust, aSort, lFooter, lFastEdit, ;
lCell, lLines, aRows, uBack, cBckMode, bClass, lTransparent,;
lNoBorder, cVarName, c2KStyle )
local oBrw, n, i, oCol, oClass
DEFAULT lTransparent := .F.
DEFAULT oWnd := If( GetWndDefault() == nil, TWindow():New(), GetWndDefault() )
// This function is intended only to support command syntax
// and not to be used directly in application program
if ValType( bClass ) == 'B'
oClass := Eval( bClass )
endif
if oClass != nil .and. oClass:IsKindOf( 'TCTOXBROWSE' )
oBrw := oClass:New( oWnd )
else
oBrw := TCTOXBrowse():New( oWnd )
if oClass != nil .and. oClass:IsKindOf( 'TXBRWCOLUMN' )
oBrw:bColClass := bClass
endif
endif
if ValType( aCols ) == 'A' .and. Len( aCols ) == 1 .and. ValType( aCols[ 1 ] ) == 'C' .and. AllTrim( aCols[ 1 ] ) == "*"
lAddCols := .t.
aCols := nil
endif
if ValType( aSort ) == 'A' .and. Len( aSort ) == 1 .and. ValType( aSort[ 1 ] ) == 'C' .and. Upper( AllTrim( aSort[ 1 ] ) ) == "AUTO"
lAutoSort := .t.
aSort := nil
endif
oBrw:lAutoSort := lAutoSort
oBrw:bLDblClick := bLDblClick
oBrw:bRClicked := bRClick
aFlds := CheckArray( aFlds )
aHeaders := CheckArray( aHeaders )
aColSizes := CheckArray( aColSizes )
aPics := CheckArray( aPics )
aCols := CheckArray( aCols )
aJust := CheckArray( aJust )
aSort := CheckArray( aSort )
if aCols != nil
aCols := ASize( ArrTranspose( aCols ), 6 )
endif
XbrwSetDataSource( oBrw, cDataSrc, lAddCols, lAutoSort, ;
If( aCols == nil, nil, aCols[ 1 ] ), aRows, aHeaders, bChange )
if c2KStyle != nil
oBrw:SetStyle( If( c2KStyle == "FLAT", -1, Val( c2KStyle ) ) )
endif
DEFAULT oBrw:bChange := bChange
DEFAULT aHeaders := {}, aPics := {}, aColSizes := {}, aSort := {}
if aCols != nil
aHeaders := ArrMerge( aCols[ 2 ], aHeaders )
aPics := ArrMerge( aCols[ 3 ], aPics )
aColSizes := ArrMerge( aCols[ 4 ], aColSizes )
aJust := ArrMerge( aCols[ 5 ], aJust )
aSort := ArrMerge( aCols[ 6 ], aSort )
//
AEval( oBrw:aCols, { |o,i| If( Empty( o:cExpr ), o:cExpr := cValToChar( aCols[ 1, i ] ), nil ) },,Len( aCols[ 1 ] ) )
endif
if ! Empty( aFlds )
for n := 1 to Len( aFlds )
oBrw:AddCol():bEditValue := aFlds[ n ]
next
endif
for i := 1 to Len( oBrw:aCols )
oCol := oBrw:aCols[ i ]
if Len( aPics ) >= i .and. aPics[ i ] != nil
if ValType( aPics[ i ] ) == 'A'
oCol:SetCheck( aPics[ i ] )
elseif !Empty( aPics[ i ] )
oCol:cEditPicture := aPics[ i ]
endif
endif
if Len( aHeaders ) >= i .and. aHeaders[ i ] != nil
oCol:cHeader := cValToChar( aHeaders[ i ] )
endif
if Len( aColSizes ) >= i
if .F. //aColSizes[ i ] != nil .and. aColSizes[ i ] < 0
n := -aColSizes[ i ]
oCol:nDataLen := Int( n )
if n > oCol:nDataLen
n := Int( 10 * ( n - oCol:nDataLen ) )
oCol:nDataDec := n
endif
else
oCol:nWidth := aColSizes[ i ]
endif
endif
if Len( aSort ) >= i .and. ! Empty( aSort[ i ] )
oCol:cSortOrder := aSort[ i ]
endif
next i
if valtype( nClrFore ) == 'N'
DEFAULT nClrBack := CLR_WHITE
oBrw:bClrStd := {|| { nClrFore, nClrBack } }
oBrw:SetColor( nClrFore, nClrBack )
endif
if ValType( uBack ) $ 'ACNO'
if ValType( uBack ) == 'A'
n := If( ValType( cBckMode ) == 'C', ( cBckMode != 'HORIZONTAL' ), .t. )
else
n := If( ValType( cBckMode ) == 'C', AScan( { 'TILED','STRETCH','FILL' }, cBckMode ), 0 )
n := If( n > 0, n - 1, nil )
endif
oBrw:SetBackGround( uBack, n )
endif
if oFont != nil
oBrw:SetFont( oFont )
endif
if bWhen != nil
oBrw:bWhen := bWhen
endif
if bValid != nil
oBrw:bValid := bValid
endif
if oCursor != nil
oBrw:oCursor := oCursor
endif
if cMsg != nil
oBrw:cMsg := cMsg
endif
oBrw:lDesign := lDesign
oBrw:lDrag := lDesign
if ! Empty( aJust )
oBrw:aJustify := aJust
endif
oBrw:lFooter := lFooter
oBrw:lFastEdit := lFastEdit
if lLines
oBrw:nColDividerStyle := LINESTYLE_BLACK
oBrw:nRowDividerStyle := LINESTYLE_BLACK
oBrw:lColDividerComplete := .T.
endif
if lCell
oBrw:nMarqueeStyle := MARQSTYLE_HIGHLCELL
endif
if ValType( nResID ) == 'N'
oBrw:CreateFromResource( nResID )
else
if nRow != nil
oBrw:nTop := nRow * If( lPixel, 1, BRSE_CHARPIX_H ) // 14
endif
if nCol != nil
oBrw:nLeft := nCol * If( lPixel, 1, BRSE_CHARPIX_W ) //8
endif
if nWidth != nil
if nWidth <= 0
oBrw:nRightMargin := -nWidth
if oWnd:IsKindOf( "TDIALOG" ) .and. Empty( oWnd:hWnd ) .and. !oWnd:lTruePixel
oBrw:nRightMargin *= 2
endif
else
oBrw:nRight := oBrw:nLeft + nWidth - 1
endif
endif
if nHeight != nil
if nHeight <= 0
oBrw:nBottomMargin := -nHeight
if oWnd:IsKindOf( "TDIALOG" ) .and. Empty( oWnd:hWnd ) .and. !oWnd:lTruePixel
oBrw:nBottomMargin *= 2
endif
else
oBrw:nBottom := oBrw:nTop + nHeight - 1
endif
endif
if lNoBorder == .t. .and. lAnd( oBrw:nStyle, WS_BORDER )
oBrw:nStyle -= WS_BORDER
endif
if lTransparent
oBrw:lTransparent := .t.
endif
oBrw:lUpdate := lUpdate
endif
oBrw:cVarName = cVarName
return oBrw
//----------------------------------------------------------------------------//
static function CheckArray( aArray )
if ValType( aArray ) == 'A' .and. ;
Len( aArray ) == 1 .and. ;
ValType( aArray[ 1 ] ) == 'A'
aArray := aArray[ 1 ]
endif
return aArray
//----------------------------------------------------------------------------//
static function ArrMerge( aArray1, aArray2 )
local n, nLen
if Empty( aArray1 )
aArray1 := aArray2
elseif ! Empty( aArray2 )
if Len( aArray1 ) < Len( aArray2 )
ASize( aArray1, Len( aArray2 ) )
endif
AEval( aArray2, { |u,i| If( u == nil, , aArray1[ i ] := u ) } )
endif
return aArray1
Code: Select all
#ifdef _FLAT_
1 24 "WindowsXP.Manifest"
#endif
test DIALOG 17, 36, 185, 147
STYLE DS_MODALFRAME | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU
CAPTION "Test"
FONT 8, "MS Sans Serif"
{
CONTROL "", 100, "SysTabControl32", 0 | WS_CHILD | WS_VISIBLE | WS_TABSTOP, 5, 6, 175, 117
DEFPUSHBUTTON "OK", 1, 67, 128, 50, 14
}
one DIALOG 6, 15, 175, 117
STYLE WS_CHILD | WS_VISIBLE
FONT 8, "MS Sans Serif"
{
CONTROL "", 10, "TCTOXBrowse", 0 | WS_CHILD | WS_VISIBLE | WS_BORDER | WS_HSCROLL, 4, 4, 168, 110
}
two DIALOG 6, 15, 175, 117
STYLE WS_CHILD | WS_VISIBLE
FONT 8, "MS Sans Serif"
{
CONTROL "", 10, "TXBrowse", 0 | WS_CHILD | WS_VISIBLE | WS_BORDER | WS_HSCROLL, 4, 4, 168, 110
}Code: Select all
#xcommand @ <nRow>, <nCol> [ COLUMN ] CTOXBROWSE <oBrw> ;
[ [ FIELDS ] <Flds,...>] ;
[ <dsrc: ALIAS, ARRAY, RECSET, RECORDSET, OBJECT, DATASOURCE> <uDataSrc> ] ;
[ <sizes:FIELDSIZES, SIZES, COLSIZES> <aColSizes,...> ] ;
[ <head:HEAD,HEADER,HEADERS> <aHeaders,...> ] ;
[ <pic: PICS, PICTURE, PICTURES> <aPics,...> ] ;
[ <cols: COLS, COLUMNS> <aCols,...> ] ;
[ <idx: SORT,ORDERS> <aSort,...> ] ;
[ JUSTIFY <aJust,...> ] ;
[ SIZE <nWidth>, <nHeigth> ] ;
[ ID <nID> ] ;
[ <dlg:OF,DIALOG> <oWnd> ] ;
[ SELECT <cField> FOR <uValue1> [ TO <uValue2> ] ] ;
[ <change: ON CHANGE, ON CLICK> <uChange> ] ;
[ ON [ LEFT ] DBLCLICK <uLDblClick> ] ;
[ ON RIGHT CLICK <uRClick> ] ;
[ FONT <oFont> ] ;
[ CURSOR <oCursor> ] ;
[ <color: COLOR, COLORS> <nClrFore> [,<nClrBack>] ] ;
[ MESSAGE <cMsg> ] ;
[ <update: UPDATE> ] ;
[ <pixel: PIXEL> ] ;
[ WHEN <uWhen> ] ;
[ <design: DESIGN> ] ;
[ VALID <uValid> ] ;
[ <autosort: AUTOSORT> ] ;
[ <autocols: AUTOCOLS> ] ;
[ <footers: FOOTERS> ] ;
[ <fasted: FASTEDIT> ] ;
[ <lcell: CELL> ] [ <llines: LINES> ] ;
[ ROWS <aRows> ] ;
[ BACKGROUND <uBack> [ <bckmode: TILED, STRETCH, FILL, VERTICAL, HORIZONTAL> ] ] ;
[ CLASS <child> ] [ <transp: TRANSPARENT> ] [ <noborder: NOBORDER> ] ;
[ STYLE <c2KStyle: FLAT,STANDARD,2007,2010,2013,2015> ] ;
=> ;
<oBrw> := CtoXbrowseNew( <oWnd>, <nRow>, <nCol>, <nWidth>, <nHeigth>,;
[ \{ <{Flds}> \} ], ;
[\{<aHeaders>\}], [\{<aColSizes>\}], ;
[<{uChange}>],;
[\{|nRow,nCol,nFlags|<uLDblClick>\}],;
[\{|nRow,nCol,nFlags|<uRClick>\}],;
<oFont>, <oCursor>, <nClrFore>, <nClrBack>, <cMsg>,;
<.update.>, <uDataSrc>, <{uWhen}>,;
<.design.>, <{uValid}>, <.pixel.>, [<nID>], <.autosort.>, <.autocols.> , ;
[\{<aPics>\}], [\{<aCols>\}],;
[\{<aJust>\}], [\{<aSort>\}], <.footers.>, <.fasted.>, ;
<.lcell.>, <.llines.>, <aRows>, <uBack>, [upper(<(bckmode)>)], ;
[ If( ValType( <child> ) == 'B', <child>, <{child}> ) ], <.transp.>,;
<.noborder.>, [<(oBrw)>], [Upper(<"c2KStyle">)] )
#xcommand REDEFINE [ COLUMN ] CTOXBROWSE <oBrw> [<clauses,...>] ID <nID> [<moreClauses,...>] ;
=> @ 0,0 CTOXBROWSE <oBrw> [<clauses>] ID <nID> [<moreClauses>]