dccheckbox appearance 2.0

[Auge_Ohr]

I enhanced the sample below per your requests ...

THX, that make it more clear that it is (again) a visual Style Problem with Xbase++ v2.x

So it appears that something is not working properly for Xbase 2.0/Express with themes enabled and the :SetcolorBG() method versus the use of presentation parameters. This has been forwarded with a prior example to Andreas at Alaska and I will also provide Alaska Support with this example.

I do not know if the interaction of Express has anything to do with this as the same Express code is used for both versions.

Express++ is build on Xbase++ ... if Alaska have change something with visual Style and do not tell us ...

when build a native Checkbox ( Button ) using API and visual Style, without Ownerdraw, you can't set Background Color after Create

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@Gdi32:SetBkColor( hDC, AutomationTranslateColor(XBP* Color,.F.))

it is like XbpBrowse() using visual Style and o:Colorblock

with XbpBrowse() you can use Ownerdraw / o:customDrawCell Callback Slot but for Windows API you need a "Trick" when hook WM_CTLCOLORBTN / WM_CTLCOLORSTATIC Windows Message.

do you remember "black" Checkbox in Xbase++ Groupbox ?
it was the mistake of XBPSYSCLR_TRANSPARENT = -255 but Windows CLR_NONE are 0 using for

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::BrushSysColor :=  @Gdi32:CreateSolidBrush(CLR_NONE)

to use as Return Value of WM_CTLCOLORBTN / WM_CTLCOLORSTATIC

when using a Groupbox, which is a Static under Xbase++ , it also use { XBP_PP_BGCLR, -255 } when create by Formdesign ( Parent of Group ). thats why i wanted to see how it looks like without Groupbox.
btw. if you use Xbase++ v2.x Formdesign ... what will be the Result (Presentation-Parameter) ?

... and last Idea (now) : use oDialog:DrawingArea:SetColorBG() to see if it goes through the Child XbPart.

[Cliff Wiernik]

I revised the same to use some pure Xbase++ objects. You can see that between 1.9 and 2.0 they do not behave the same. It is behaving different when the xbpcheckbox object is disabled.

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#include "dcdialog.ch"
LOCAL Getlist := {}, x := .T., oTabpage, ogroupbox, oXbp1, oXbp2


@ 0,0 dctabpage otabpage SIZE 30, 30 TABWIDTH 10 CAPTION 'Xbase++ 2.0'
dcsetparent to otabpage
@ 1,3 DCCHECKBOX  x prompt 'prompt1' color GRA_CLR_BLACK,XBPSYSCLR_TRANSPARENT
@ 2,3 DCCHECKBOX  x prompt 'prompt2'
@ 3,3 DCCHECKBOX  x prompt 'prompt3' color GRA_CLR_BLACK,XBPSYSCLR_TRANSPARENT WHEN {|| .F.}
@ 4,3 DCCHECKBOX  x prompt 'prompt4' WHEN {|| .F.}
@ 5,3 DCCHECKBOX  x prompt 'prompt5' PRESENTATION {{ XBP_PP_BGCLR, -255 }} WHEN {|| .F.}
@ 6,3 DCCHECKBOX  x prompt 'prompt6' EVAL {|o| o:SetColorBG(XBPSYSCLR_TRANSPARENT)} WHEN {|| .F.}
@ 7,3 DCCHECKBOX  x prompt 'prompt7' color GRA_CLR_BLACK,GRA_CLR_RED WHEN {|| .F.}
@ 8,3 DCCHECKBOX  x prompt 'prompt8' PRESENTATION {{ XBP_PP_BGCLR, GRA_CLR_RED }}
@ 9,3 DCCHECKBOX  x prompt 'prompt9' color GRA_CLR_BLACK,GRA_CLR_RED WHEN {|| .F.}
@ 10,3 DCCHECKBOX  x prompt 'prompt10' PRESENTATION {{ XBP_PP_BGCLR, GRA_CLR_RED }} WHEN {|| .F.}

@ 12,1 DCGROUP ogroupbox SIZE 20,14
dcsetparent to ogroupbox
@ 1,3 DCCHECKBOX  x prompt 'prompt1' color GRA_CLR_BLACK,XBPSYSCLR_TRANSPARENT
@ 2,3 DCCHECKBOX  x prompt 'prompt2'
@ 3,3 DCCHECKBOX  x prompt 'prompt3' color GRA_CLR_BLACK,XBPSYSCLR_TRANSPARENT WHEN {|| .F.}
@ 4,3 DCCHECKBOX  x prompt 'prompt4' WHEN {|| .F.}
@ 5,3 DCCHECKBOX  x prompt 'prompt5' PRESENTATION {{ XBP_PP_BGCLR, -255 }} WHEN {|| .F.}
@ 6,3 DCCHECKBOX  x prompt 'prompt6' EVAL {|o| o:SetColorBG(XBPSYSCLR_TRANSPARENT)} WHEN {|| .F.}
@ 7,3 DCCHECKBOX  x prompt 'prompt7' color GRA_CLR_BLACK,GRA_CLR_RED WHEN {|| .F.}
@ 8,3 DCCHECKBOX  x prompt 'prompt8' PRESENTATION {{ XBP_PP_BGCLR, GRA_CLR_RED }}
@ 9,3 DCCHECKBOX  x prompt 'prompt9' color GRA_CLR_BLACK,GRA_CLR_RED WHEN {|| .F.}
@ 10,3 DCCHECKBOX  x prompt 'prompt10' PRESENTATION {{ XBP_PP_BGCLR, GRA_CLR_RED }} WHEN {|| .F.}

dcread gui FIT ;
;//   eval {|o| oXbp1 := XbpCheckBox():new( ogroupbox, ogroupbox, {21,30}, {96,20}, { { XBP_PP_BGCLR, -255 } } ), ;
;//   eval {|o| oXbp1 := XbpCheckBox():new( ogroupbox, ogroupbox, {21,30}, {96,20}, { { XBP_PP_BGCLR, -255 } } ), ;
   eval {|o| oXbp1 := XbpCheckBox():new( ogroupbox, ogroupbox, {21,30}, {96,20}, { { XBP_PP_BGCLR, GRA_CLR_BACKGROUND } } ), ;
            oXbp1:caption := "xbpCheckbox11",       ;
            oXbp1:tabStop := .T.,              ;
            oXbp1:create(),                    ;
            oXbp1:selected := {|| NIL },       ;
            oXbp1:disable(),                   ;
;//            oXbp1:enable(),                    ;
                                               ;
;//            oXbp2 := XbpCheckBox():new( ogroupbox, ogroupbox, {21,10}, {96,20}, { { XBP_PP_BGCLR, -255 } } ), ;
            oXbp2 := XbpCheckBox():new( ogroupbox, ogroupbox, {21,10}, {96,20}  ), ;
;//            oXbp2 := XbpCheckBox():new( ogroupbox, ogroupbox, {21,10}, {96,20}, { { XBP_PP_BGCLR, GRA_CLR_BACKGROUND } } ), ;
            oXbp2:caption := "xbpCheckbox12",       ;
            oXbp2:tabStop := .T.,              ;
            oXbp2:setColorBG(GRA_CLR_BACKGROUND), ;
;//            oXbp2:setColorBG(XBPSYSCLR_TRANSPARENT), ;
            oXbp2:create(),                    ;
            oXbp2:selected := {|| NIL },       ;
            oXbp2:disable(),                   ;
;//            oXbp2:enable(),                    ;
                                               ;
                                               ;
                                               ;
            o:show()}


return

checkboxtest1-withpureXbase++object.jpg (66.24 KiB) Viewed 7743 times

[rdonnay]

Here is a fix for you: _DCCLASS.PRG (line 1208)

WAS:

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DC_XbpSetColor( ::color, self, ::setParent(), ;
                  aGetListItem[aGETLIST_PRESENTATION], .t., .t. )

IS:

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IF Valtype(::color) $ 'ANB'
  DC_XbpSetColor( ::color, self, ::setParent(), ;
                  aGetListItem[aGETLIST_PRESENTATION], .t., .t. )
ELSE
  ::setColorBG(XBPSYSCLR_TRANSPARENT)
ENDIF

[Dian]

Thanks, Roger. That fixed the checkboxes. I also had to add the same lines in at 385 for the dc_XbpStatic, so that the background on Says for a code block would also be transparent.

[rdonnay]

I also had to add the same lines in at 385 for the dc_XbpStatic

I made that change too.
Both changes will be in the next build.