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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
;; Contact: Nokia Corporation (qt-info@nokia.com)
;;
;; This file is part of the tools applications of the Qt Toolkit.
;;
;; $QT_BEGIN_LICENSE:LGPL$
;; No Commercial Usage
;; This file contains pre-release code and may not be distributed.
;; You may use this file in accordance with the terms and conditions
;; contained in the either Technology Preview License Agreement or the
;; Beta Release License Agreement.
;;
;; GNU Lesser General Public License Usage
;; Alternatively, this file may be used under the terms of the GNU Lesser
;; General Public License version 2.1 as published by the Free Software
;; Foundation and appearing in the file LICENSE.LGPL included in the
;; packaging of this file.  Please review the following information to
;; ensure the GNU Lesser General Public License version 2.1 requirements
;; will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
;;
;; In addition, as a special exception, Nokia gives you certain
;; additional rights. These rights are described in the Nokia Qt LGPL
;; Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
;; package.
;;
;; GNU General Public License Usage
;; Alternatively, this file may be used under the terms of the GNU
;; General Public License version 3.0 as published by the Free Software
;; Foundation and appearing in the file LICENSE.GPL included in the
;; packaging of this file.  Please review the following information to
;; ensure the GNU General Public License version 3.0 requirements will be
;; met: http://www.gnu.org/copyleft/gpl.html.
;;
;; If you are unsure which license is appropriate for your use, please
;; contact the sales department at http://qt.nokia.com/contact.
;; $QT_END_LICENSE$
;;
;; This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
;; WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
!ifdef MODULE_ENVIRONMENT
!macro ENVIRONMENT_INITIALIZE
  !include "includes\writeEnvStr.nsh"
  !include "includes\writePathStr.nsh"
  
  !ifndef MODULE_ENVIRONMENT_QTDIR
    !ifdef MODULE_MINGW
      !define MODULE_ENVIRONMENT_QTDIR $MINGW_INSTDIR
    !endif

    !ifdef MODULE_MSVC
      !define MODULE_ENVIRONMENT_QTDIR $MSVC_INSTDIR
    !endif
  !endif

  !define MODULE_ENVIRONMENT_PAGE "envpage.ini"
  var MODULE_ENVIRONMENT_SET
  var MODULE_ENVIRONMENT_OLD
  LangString ModuleEnvironmentTitle ${LANG_ENGLISH} "Configure Environment"
  LangString ModuleEnvironmentDescription ${LANG_ENGLISH} "Configure Qt environment variables"
  
  Page custom ModuleEnvironmentPageEnter ModuleEnvironmentPageExit
!macroend
!macro ENVIRONMENT_SECTIONS
  Section -ModuleEnvironmentRegister
    push "${MODULE_ENVIRONMENT_QTDIR}"
    call RegisterQtEnvVariables
  SectionEnd

  Function ModuleEnvironmentPageEnter
    push $0
    Call IsNT
    pop $0
    strcmp "$0" "1" +2
      abort
    pop $0
    
    !insertmacro MUI_HEADER_TEXT "$(ModuleEnvironmentTitle)" "$(ModuleEnvironmentDescription)"

    strcmp $MODULE_ENVIRONMENT_SET "1" 0 envCheckNo
      !insertmacro MUI_INSTALLOPTIONS_WRITE "${MODULE_ENVIRONMENT_PAGE}" "Field 2" "State" "1"
      goto showEnvPage
    envCheckNo:
      !insertmacro MUI_INSTALLOPTIONS_WRITE "${MODULE_ENVIRONMENT_PAGE}" "Field 2" "State" "0"

    showEnvPage:
      !insertmacro MUI_INSTALLOPTIONS_DISPLAY "${MODULE_ENVIRONMENT_PAGE}"
  FunctionEnd

  Function ModuleEnvironmentPageExit
    !insertmacro MUI_INSTALLOPTIONS_READ $MODULE_ENVIRONMENT_SET "${MODULE_ENVIRONMENT_PAGE}" "Field 2" "State"
  FunctionEnd

  Function RegisterQtEnvVariables
    exch $2 ; the installation path = QTDIR
    push $0 ; I think WriteEnvStr mixes up $0 and $1
    push $1

    WriteRegDWORD SHCTX "$PRODUCT_UNIQUE_KEY" "QtEnvSet" $MODULE_ENVIRONMENT_SET

    strcmp $MODULE_ENVIRONMENT_SET "1" 0 noenv

    StrCmp $MODULE_ENVIRONMENT_OLD "0" +4
    DetailPrint "Removing $MODULE_ENVIRONMENT_OLD\bin from PATH"
    push "$MODULE_ENVIRONMENT_OLD\bin"
    Call RemoveFromPath ; remove old qtdir

    DetailPrint "Setting QTDIR to $2"
    push "QTDIR"
    push $2
    Call WriteEnvStr ; set the QTDIR

    DetailPrint "Adding $2\bin to PATH"
    push "$2\bin"
    Call AddToPath ; set the PATH


    push "QMAKESPEC"
    push ${INSTALL_COMPILER}
    Call GetMkSpec
    pop $0
    DetailPrint "Setting QMAKESPEC to $0"
    push $0
    Call WriteEnvStr ; set the QMAKESPEC

    noenv:
      pop $1
      pop $0
      pop $2
  FunctionEnd

  Function un.RegisterQtEnvVariables
    exch $0 ; QTDIR
    push $1

    ClearErrors
    ReadRegDWORD $MODULE_ENVIRONMENT_SET SHCTX "$PRODUCT_UNIQUE_KEY" "QtEnvSet"
    intcmp $MODULE_ENVIRONMENT_SET 0 noenv

    DetailPrint "Removing $0\bin from the PATH"
    push "$0\bin"
    Call un.RemoveFromPath ; removes qt from the path

    ;Check if QTDIR is equal to installdir
    ExpandEnvStrings $1 "%QTDIR%"

    StrCmp "$0" "$1" removeenv
    StrCmp "$0\" "$1" removeenv
    StrCmp "$0" "$1\" removeenv
    Goto noenv

    removeenv:
    DetailPrint "Removing QTDIR"
    push "QTDIR"
    Call un.DeleteEnvStr ; removes QTDIR

    DetailPrint "Removing QMAKESPEC"
    push "QMAKESPEC"
    Call un.DeleteEnvStr ; removes QMAKESPEC

    noenv:
      pop $1
       pop $0
  FunctionEnd
!macroend
!macro ENVIRONMENT_DESCRIPTION
!macroend
!macro ENVIRONMENT_STARTUP
  !insertmacro MUI_INSTALLOPTIONS_EXTRACT "${MODULE_ENVIRONMENT_PAGE}"
  push $0
  ExpandEnvStrings $0 "%QTDIR%"

  StrCmp $0 "%QTDIR%" +4
  strcpy $MODULE_ENVIRONMENT_SET "0" ;QTDIR exists
  strcpy $MODULE_ENVIRONMENT_OLD $0
  Goto +3
  strcpy $MODULE_ENVIRONMENT_SET "1" ;no QTDIR
  strcpy $MODULE_ENVIRONMENT_OLD "0"
  
  Call IsNT
  pop $0
  strcmp "$0" "1" +2
    strcpy $MODULE_ENVIRONMENT_SET "0"
  pop $0
!macroend
!macro ENVIRONMENT_FINISH
!macroend
!macro ENVIRONMENT_UNSTARTUP
!macroend
!macro ENVIRONMENT_UNINSTALL
  Section -un.ModuleEnvironmentRegister
    push "${MODULE_ENVIRONMENT_QTDIR}"
    call un.RegisterQtEnvVariables
  SectionEnd
!macroend
!macro ENVIRONMENT_UNFINISH
!macroend
!else ;MODULE_ENVIRONMENT
!macro ENVIRONMENT_INITIALIZE
!macroend
!macro ENVIRONMENT_SECTIONS
!macroend
!macro ENVIRONMENT_DESCRIPTION
!macroend
!macro ENVIRONMENT_STARTUP
!macroend
!macro ENVIRONMENT_FINISH
!macroend
!macro ENVIRONMENT_UNSTARTUP
!macroend
!macro ENVIRONMENT_UNINSTALL
!macroend
!macro ENVIRONMENT_UNFINISH
!macroend
!endif ;MODULE_ENVIRONMENT