NSIS/Examples/one-section.nsi
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git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@2471 212acab6-be3b-0410-9dea-997c60f758d6
2003-04-19 19:57:42 +00:00

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NSIS

# This example demonstrates how to control section selection.
# It allows only one of the four optional section to be
# selected at any given time.
#
# Please note that the initial value will not be what you expect
# it to be if you are are using InstType because InstType is taken
# into consideration after the .onInit, where the initial state is
# set, executes.
# To use this code with InstType you will either have to specify
# you first InstType to match the initial value you set in .onInit
# (only StrCpy $1 ${sec1} is important in this case because the
# other set the section and that will be done by InstType), or set
# the initial section selection from .onSelChange when it is called
# for the first time.
#### Uncomment the next line for an example with subsections too
# !define USE_SUBSECTION
####
Name example
OutFile one-section.exe
ComponentText "please choose just one but the default"
# defines SF_*, SECTION_OFF and some macros
!include Sections.nsh
Section !Required
SectionIn RO
SectionEnd
!ifdef USE_SUBSECTION
SubSection /e "choose one"
!endif
Section "optional #1" sec1
SectionEnd
Section "optional #2" sec2
SectionEnd
Section "optional #3" sec3
SectionEnd
Section "optional #4" sec4
SectionEnd
!ifdef USE_SUBSECTION
SubSectionEnd
!endif
Function .onInit
Push $0
StrCpy $1 ${sec1} ; Gotta remember which section we are at now...
SectionGetFlags ${sec1} $0
IntOp $0 $0 | ${SF_SELECTED}
SectionSetFlags ${sec1} $0
# !insertmacro SelectSection ${sec1}
SectionGetFlags ${sec2} $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags ${sec2} $0
# !insertmacro UnselectSection ${sec2}
SectionGetFlags ${sec3} $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags ${sec3} $0
# !insertmacro UnselectSection ${sec3}
SectionGetFlags ${sec4} $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags ${sec4} $0
# !insertmacro UnselectSection ${sec4}
Pop $0
FunctionEnd
Function .onSelChange
Push $0
!ifdef USE_SUBSECTION
Push $2
StrCpy $2 ${SF_SELECTED}
SectionGetFlags ${sec1} $0
IntOp $2 $2 & $0
SectionGetFlags ${sec2} $0
IntOp $2 $2 & $0
SectionGetFlags ${sec3} $0
IntOp $2 $2 & $0
SectionGetFlags ${sec4} $0
IntOp $2 $2 & $0
StrCmp $2 0 skip
SectionSetFlags ${sec1} 0
SectionSetFlags ${sec2} 0
SectionSetFlags ${sec3} 0
SectionSetFlags ${sec4} 0
skip:
Pop $2
!endif
; Turn off old selected section
SectionGetFlags $1 $0
IntOp $0 $0 & ${SECTION_OFF}
SectionSetFlags $1 $0
# !insertmacro UnselectSection $1
; Now remember the current selection
Push $2
StrCpy $2 $1
SectionGetFlags ${sec1} $0
IntOp $0 $0 & ${SF_SELECTED}
IntCmp $0 ${SF_SELECTED} 0 +2 +2
StrCpy $1 ${sec1}
SectionGetFlags ${sec2} $0
IntOp $0 $0 & ${SF_SELECTED}
IntCmp $0 ${SF_SELECTED} 0 +2 +2
StrCpy $1 ${sec2}
SectionGetFlags ${sec3} $0
IntOp $0 $0 & ${SF_SELECTED}
IntCmp $0 ${SF_SELECTED} 0 +2 +2
StrCpy $1 ${sec3}
SectionGetFlags ${sec4} $0
IntOp $0 $0 & ${SF_SELECTED}
IntCmp $0 ${SF_SELECTED} 0 +2 +2
StrCpy $1 ${sec4}
StrCmp $2 $1 0 +4 ; selection hasn't changed
SectionGetFlags $1 $0
IntOp $0 $0 | ${SF_SELECTED}
SectionSetFlags $1 $0
# !insertmacro SelectSection $1
Pop $2
Pop $0
FunctionEnd