PopUp Menu

 

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This behavior turns any text field into a popup menu.

--There are four options... --1. The item list: A list of the lines in the popup menu. --2. Function to call: This is the function called when an item in the popup menu is selected.  The number of the line selected is passed to the function specified. --3. The direction: This specifies the direction the menu will pop.  Auto pops in the direction most appropriate to the position of the currently selected item in the list. --4. The number of flashes: This specifies the number of flashes you will see when an item is selected.  In the MacOS the default is 3 so that is the default here as well. --------------------------- --Code by Rett Crocker 1997 --If you use this code I would appreciate a mention in the --credits.  Enjoy. --------------------------- property pItemList, pEventToCall, pDirection, pSelectFlash property pSprite, pField, pSwitchField, pLocV, pCurrent property pFullField, pLastML, pDown on beginSprite me   set pSprite = the spriteNum of me   set pField = the memberNum of sprite pSprite   set pLocV = the locV of sprite pSprite   set pFullField = ""   set lDelim = the itemDelimiter   set the itemDelimiter = ","   set lText = pItemList   set pItemList = []   set lNoItems = the number of items of lText   repeat with x = 1 to lNoItems     set lCurrItem = (item x of lText)     setAt(pItemList, x, lCurrItem)     put lCurrItem & RETURN after pFullField   end repeat   delete line (the number of lines of pFullField) of pFullField   set pCurrent = line 1 of pFullField   put pCurrent into field pField   set pDown = 0 end on mouseDown me   set pLastML = 0   set pDown = 1   set pSwitchField = findEmpty(member 1)   duplicate member pField, pSwitchField   put pFullField into field pSwitchField   case pDirection of     #auto:       set lLine = getPos(pItemList, pCurrent)       set lLineHeight = the lineHeight of member pField       set lV = (the locV of sprite pSprite) - ((lLine - 1) * lLineHeight)       set the locV of sprite pSprite = lV       set the memberNum of sprite pSprite = pSwitchField     #up:       set lNoLines = the number of lines of pFullField       set lLineHeight = the lineHeight of member pField       set lDiff = (lNoLines - 1) * lLineHeight       set lV = (the locV of sprite pSprite) - lDiff       set the locV of sprite pSprite = lV       set the memberNum of sprite pSprite = pSwitchField     otherwise       set the memberNum of sprite pSprite = pSwitchField   end case   updatestage end on mouseWithin me   if pDown = 1 then     set lML = the mouseLine     if lML > 0 then       if lML <> pLastML then         hilite line lML of field pSwitchField         set pLastML = lML       end if     end if   end if end on mouseUp me   if pLastML > 0 then     set pCurrent = line pLastML of field pSwitchField     if pSelectFlash > 0 then       set lUnHiliteLine = ((the number of lines of field pSwitchField) + 1)       hilite line lUnHiliteLine of field pSwitchField       updatestage       repeat with x = 1 to pSelectFlash         hilite line pLastML of field pSwitchField         updatestage         hilite line lUnHiliteLine of field pSwitchField         updatestage       end repeat     end if     set lString = pEventToCall & SPACE & pLastML     do lString   end if   set pDown = 0   put pCurrent into field pField   set the locV of sprite pSprite = pLocV   set the memberNum of sprite pSprite = pField   updatestage   erase member pSwitchField end on mouseUpOutside me   set pDown = 0   put pCurrent into field pField   set the locV of sprite pSprite = pLocV   set the memberNum of sprite pSprite = pField   updatestage   erase member pSwitchField end on getPropertyDescriptionList me   set description = [:]   addProp description,#pItemList,[#default:"",#format:#string,#comment:"Items in menu (put a comma between each item):"]   addProp description,#pEventToCall,[#default:"",#format:#string,#comment:"Function to call:"]   addProp description,#pDirection,[#default:#auto,#format:#symbol,#comment:"Pop direction:", #range:[#auto, #down, #up]]   addProp description,#pSelectFlash,[#default:3,#format:#integer,#comment:"Number of flashes on select:"]   return description end on getBehaviorDescription   set lLine01 = " Pop Behavior:" & RETURN   set lLine02 = " This behavior turns any text field into a popup menu." & RETURN   set lLine03 = " There are four options..." & RETURN   set lLine04 = " 1. The item list: A list of the lines in the popup menu." & RETURN   set lLine05 = " 2. Function to call: This is the function called when an" & RETURN   set lLine06 = " item in the popup menu is selected.  The number of the" & RETURN   set lLine07 = " line selected is passed to the function specified." & RETURN   set lLine08 = " 3. The direction: This specifies the direction the menu" & RETURN   set lLine09 = " will pop.  Auto pops in the direction most appropriate" & RETURN   set lLine10 = " to the position of the currently selected item in the list." & RETURN   set lLine11 = " 4. The number of flashes: This specifies the number of" & RETURN   set lLine12 = " flashes you will see when an item is selected.  In the" & RETURN   set lLine13 = " MacOS the default is 3 so that is the default here as well." & RETURN   set lLine14 = "----------------------------" & RETURN   set lLine15 = " Code by Rett Crocker 1997" & RETURN   set lLine16 = " If you use this code I would appreciate a mention in the" & RETURN   set lLine17 = " credits.  Enjoy." & RETURN   set lLine18 = "----------------------------" & RETURN   return lLine01 & lLine02 & lLine03 & lLine04 & lLine05 & lLine06 & lLine07 & lLine08 & lLine09 & lLine10 & lLine11 & lLine12 & lLine13 & lLine14 & lLine15 & lLine16 & lLine17 & lLine18 end

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