Introducing the New Way to Shop From Home/Introducing the New Way to Shop From Home (Iceland Foods) (2003).iso/pc/help.dxr/UI elements_1_Multi-State Button.ls

Text File | 2003-01-01 | 6.8 KB | 216 lines

property spriteNum, mySprite, myOffMember, myOffOverMember, myOffDownMember, myOffCommand, myOnMember, myOnOverMember, myOnDownMember, myOnCommand, theMouseWasUp, myRollover, myState, ourID, ourGroupList, ourMouseDown

on getBehaviorDescription me
  return "MULTISTATE TOGGLE BUTTON" & RETURN & RETURN & "This behavior toggles the sprite it is attached to between two states: OFF and ON. " & "In each state, the member of the sprite is set according to the position of the mouse (elsewhere, rollover, mouseDown)." & RETURN & "The behavior returns the current state of the button in response to a #ToggleButton_State call." & RETURN & RETURN & "RADIO BUTTON GROUP" & RETURN & "To create a group of radio buttons, give each button in the same group the same ID. " & "Switching one button in the group on will switch all others off." & RETURN & RETURN & "PERMITTED MEMBER TYPES" & RETURN & "Graphic" & RETURN & RETURN & "PARAMETERS:" & RETURN & "-- OFF state --" & RETURN & "* Standard member (when mouse is elsewhere)" & RETURN & "* Rollover member" & RETURN & "* MouseDown member" & RETURN & "-- ON state --" & RETURN & "* Standard member" & RETURN & "* Rollover member" & RETURN & "* MouseDown member" & RETURN & "-- COMMAND --" & RETURN & "* Sent when the button is switched ON" & RETURN & "* Sent when the button is switched OFF" & RETURN & "-- Optional --" & RETURN & "* Toggle group ID (to create a group of radio buttons)" & RETURN & RETURN & "If members are placed consecutively in the cast in this order then default values can be used to create the button."
end

on getBehaviorTooltip me
  return "Create an ON/OFF button which reacts to rollovers and clicks. " & "Use several such buttons together as a radio button group."
end

on beginSprite me
  Initialize(me)
end

on prepareFrame me
  CheckForRollover(me)
end

on mouseDown me
  clickOn(me)
end

on mouseUp me
  if ourMouseDown[1] then
    Toggle(me)
  end if
end

on mouseUpOutSide me
  CheckGroupForClick(me)
end

on Initialize me
  mySprite = sprite(me.spriteNum)
  ourGroupList = []
  myOffMember = member(myOffMember)
  myOffOverMember = member(myOffOverMember)
  myOffDownMember = member(myOffDownMember)
  myOnMember = member(myOnMember)
  myOnOverMember = member(myOnOverMember)
  myOnDownMember = member(myOnDownMember)
  sendAllSprites(#ToggleButton_GroupRollCall, ourID, ourGroupList)
  call(#ToggleButton_MouseDownList, ourGroupList, [0])
end

on CheckForRollover me
  mouseOverMe = the rollover = me.spriteNum
  if myRollover = mouseOverMe then
    if theMouseWasUp = the mouseUp then
      exit
    else
      theMouseWasUp = the mouseUp
      if mouseOverMe then
        if the mouseUp then
          case myState of
            1:
              mySprite.member = myOnOverMember
            0:
              mySprite.member = myOffOverMember
          end case
        end if
      end if
    end if
  else
    myRollover = mouseOverMe
    if ourMouseDown[1] then
      if myRollover then
        case myState of
          1:
            mySprite.member = myOnDownMember
          0:
            mySprite.member = myOffDownMember
        end case
      else
        case myState of
          1:
            mySprite.member = myOnMember
          0:
            mySprite.member = myOffMember
        end case
      end if
    else
      if not (the mouseDown) and myRollover then
        case myState of
          1:
            mySprite.member = myOnOverMember
          0:
            mySprite.member = myOffOverMember
        end case
      else
        case myState of
          1:
            mySprite.member = myOnMember
          0:
            mySprite.member = myOffMember
        end case
      end if
    end if
  end if
end

on clickOn me
  ourMouseDown[1] = 1
  case myState of
    1:
      mySprite.member = myOnDownMember
    0:
      mySprite.member = myOffDownMember
  end case
end

on Toggle me, whichState
  if voidp(whichState) then
    myState = not myState
  else
    myState = whichState
  end if
  ourMouseDown[1] = 0
  theMouseWasUp = 1
  case myState of
    1:
      mySprite.member = myOnMember
      updateStage()
      do(myOnCommand)
    0:
      mySprite.member = myOffMember
      updateStage()
      do(myOffCommand)
  end case
  if ourGroupList.count() then
    if myState then
      call(#ToggleButton_Off, ourGroupList, me)
    end if
  end if
end

on CheckGroupForClick me
  groupRollover = call(#ToggleButton_Rollover, ourGroupList, [])
  if not groupRollover.count() then
    ourMouseDown[1] = 0
  end if
end

on ToggleButton_GroupRollCall me, groupID, groupList
  if groupID = ourID then
    ourGroupList = groupList
    ourGroupList.append(me)
  end if
  return groupList
end

on ToggleButton_MouseDownList me, mouseDownList
  ourMouseDown = mouseDownList
end

on ToggleButton_Rollover me, theList
  if the rollover = me.spriteNum then
    theList.append(me.spriteNum)
  end if
  return theList
end

on ToggleButton_Off me, callingBehavior
  if callingBehavior = me then
    exit
  end if
  Toggle(me, 0)
end

on ToggleButton_State me, groupID, statesList
  if not voidp(groupID) then
    if groupID <> ourID then
      exit
    end if
  end if
  case ilk(statesList) of
    #void:
      return myState
    #list:
      statesList.append(myState)
    #propList:
      statesList.addProp(me.spriteNum, myState)
  end case
  return statesList
end

on ToggleButton_ActiveButton me, groupID, theList
  if not voidp(groupID) then
    if groupID <> ourID then
      exit
    end if
  end if
  if not listp(theList) then
    theList = [:]
  end if
  if not theList.count() and myState then
    theList.addProp(#sprite, me.spriteNum)
    theList.addProp(#behavior, me)
  end if
  return theList
end

on isOKToAttach me, aSpriteType, aSpriteNum
  tisok = 0
  if aSpriteType = #graphic then
    tisok = 1
  end if
  return tisok
end

on getPropertyDescriptionList me
  theMember = sprite(the currentSpriteNum).member
  theMemberNum = theMember.number
  return [#myOffMember: [#comment: "-OFF STATE- Standard member:", #format: #graphic, #default: theMember], #myOffOverMember: [#comment: "Rollover member", #format: #graphic, #default: member(theMemberNum + 1)], #myOffDownMember: [#comment: "MouseDown member", #format: #graphic, #default: member(theMemberNum + 2)], #myOnMember: [#comment: "-ON STATE- Standard member", #format: #graphic, #default: member(theMemberNum + 3)], #myOnOverMember: [#comment: "Rollover member", #format: #graphic, #default: member(theMemberNum + 4)], #myOnDownMember: [#comment: "MouseDown member", #format: #graphic, #default: member(theMemberNum + 5)], #myOnCommand: [#comment: "-COMMAND SENT- when switched ON", #format: #string, #default: "sendAllSprites #Toggle_On, the currentSpriteNum"], #myOffCommand: [#comment: "when switched OFF", #format: #string, #default: "sendAllSprites #Toggle_Off, the currentSpriteNum"], #ourID: [#comment: "ID string for the group", #format: #string, #default: EMPTY]]
end