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Beyond OmniGraffle styles (Plist inside script bundle) Thread Tools Search this Thread Display Modes
OmniGraffle style are very useful, but for code-generated diagrams I need so save, edit and choose between named sets of settings (styles, in short) which go beyond the scope of the built-in styles.

Here, as a curiosity, and just in case others need to do anything similar, is a sketch of a way of maintaining such a set of styles in a plist file inside a script bundle. (There may well be simpler and more unix-like routes to the same thing - flat text files, for example :-)

(Note that the code needs to be saved as an .scptd bundle, rather than as a simple .scpt file).

Code:
property pPlistPath : (POSIX path of (path to me)) & "Contents/Styles.plist"

property pLeft : 1
property pCentre : 2
property pRight : 3

property pTop : 4
property pBottom : 5


-- Arbitrary set of key-value pairs, which will become 
-- the property names and property values of a custom style object
-- variants of which can be serialized as entries in a plist file
property plstDefaults : {¬
	{"NumbersVisible", true}, ¬
	{"AlignVert", pCentre}, ¬
	{"AlignHoriz", pLeft}, ¬
	{"XYOffset", {-0.15, -0.15}}, ¬
	{"XYSize", {0.25, 0.25}}, ¬
	{"NumFontName", "Gill Sans"}, ¬
	{"NumFontColor", "Dark Gray"}, ¬
	{"NumFontSize", 14}, ¬
	{"LineColor", "Red"}, ¬
	{"LineWeight", 2} ¬
		}

property pstrStyleEdit : "Edit current style"
property pstrStyleDelete : "Delete current style"
property plstStyleOps : {pstrStyleEdit, pstrStyleDelete}

property pstrBar : "_____________"
property pstrOther : "Continue"

on run
	tell sPlistStyles
		Initialize(plstDefaults, pPlistPath) -- Check that this script is in a bundle, and that we have a plist with at least a default style
		
		set blnEsc to false
		repeat while blnEsc = false
			-- GET DEFINITION OF CURRENT STYLE AS AS STRING
			set strSummary to GetSummary()
			
			-- AND GET LIST OF AVAILABLE STYLES
			set lstStyles to GetStyleNames()
			
			-- AND INCLUDE STYLE OPERATIONS IN MENU
			set lstMenu to lstStyles & {pstrBar} & plstStyleOps & {pstrBar} & {pstrOther}
			tell application id "sevs"
				activate
				set varChoice to choose from list lstMenu with prompt strSummary with title "Diagram style"
			end tell
			if varChoice = false then return
			set varChoice to first item of varChoice
			
			-- EITHER EDIT/DELETE THE CURRENT STYLE
			if varChoice is in plstStyleOps then
				if varChoice = pstrStyleEdit then
					EditStyle(strSummary) -- TO CREATE A NEW STYLE, EDIT THE NAME OF ANY EXISTING STYLE.
				else if varChoice = pstrStyleDelete then
					DeleteCurrentStyle()
				end if
			else
				-- OR CHOOSE A DIFFERENT STYLE
				if varChoice is in lstStyles then
					ChooseStyle(varChoice)
				else
					-- OR MOVE ON TO OTHER MATTERS, USING THE CURRENT STYLE
					if varChoice = pstrOther then set blnEsc to true
				end if
			end if
		end repeat
		
		set oStyle to GetStyle()
	end tell
	
	
	-- e.g.
	LineColor of oStyle
end run

script sPlistStyles
	property pSettingsPath : ""
	property pDefaults : {}
	
	on Initialize(lstKeyValueDefaults, strPlistPath)
		if IsBundle() then
			set my pSettingsPath to strPlistPath
			set pDefaults to lstKeyValueDefaults
			if FileExists(pSettingsPath) of sPlistStyles then
				-- Try to get the default values from the plist
				ChooseStyle("Default") of sPlistStyles
				set blnFound to (count of (KeyValuePairs of my sCurrentStyle)) > 0
			else
				set blnFound to false
			end if
			
			if not blnFound then
				tell my sCurrentStyle
					set its KeyValuePairs to pDefaults
					my StoreKeyValueSet(StyleName of it, its KeyValuePairs, pSettingsPath)
				end tell
			end if
		else
			error "Script not saved in .scptd bundle format."
		end if
	end Initialize
	
	on GetSummary()
		tell my sCurrentStyle
			set strStyleName to StyleName of it
			"CURRENT STYLE: \"" & strStyleName & "\"" & return & my List2Lines(KeyValuePairs of it, "")
		end tell
	end GetSummary
	
	on GetStyle()
		Settings() of my sCurrentStyle
	end GetStyle
	
	on ChooseStyle(strChoice)
		set varPairs to ReadKeyValueSet(strChoice, pSettingsPath)
		tell my sCurrentStyle
			if varPairs is missing value then
				set KeyValuePairs of it to pDefaults
			else
				set KeyValuePairs of it to varPairs
			end if
			set oStyleObject of it to missing value
			set StyleName of it to strChoice
		end tell
	end ChooseStyle
	
	on DeleteCurrentStyle()
		set strStyleName to StyleName of my sCurrentStyle
		if strStyleName ≠ "Default" then
			DeleteKeyValueSet(strStyleName, pSettingsPath)
			tell my sCurrentStyle
				set KeyValuePairs of it to my pDefaults
				set oStyleObject of it to missing value
				set StyleName of it to "Default"
			end tell
		end if
	end DeleteCurrentStyle
	
	on IsBundle()
		if IsFolder(POSIX path of (path to me)) then
			return true
		else
			tell application id "sevs"
				activate
				display dialog "This script must be saved as a script bundle." & return & return & ¬
					"(.scptd rather than .scpt)" with title "Wrong script file format" buttons {"OK"} default button "OK"
			end tell
			return false
		end if
	end IsBundle
	
	-- Note: the Finder's exists() function can not see inside the (script) bundle
	on FileExists(strPath)
		(do shell script ("test -e " & quoted form of strPath & "; echo $?")) = "0"
	end FileExists
	
	on IsFolder(strPath)
		(do shell script ("test -d " & quoted form of strPath & "; echo $?")) = "0"
	end IsFolder
	
	script sCurrentStyle
		property StyleName : "Default"
		property KeyValuePairs : {}
		property oStyleObject : missing value
		
		on Settings()
			if oStyleObject is missing value then set oStyleObject to MakeObject() of sPlistStyles
			return oStyleObject
		end Settings
	end script
	
	on MakeObject()
		set strScript to "script" & return
		repeat with oPair in KeyValuePairs of sCurrentStyle
			set {strKey, varValue} to oPair
			set cClass to class of varValue
			if cClass is text then
				set strValue to quote & varValue & quote
			else if cClass is list then
				if length of varValue > 0 then
					set str to "{"
					repeat with i from 1 to length of varValue
						set str to str & item i of varValue & ", "
					end repeat
					set strValue to (text 1 thru -3 of str) & "}"
				else
					set strValue to "{}"
				end if
			else
				set strValue to varValue
			end if
			set strScript to strScript & "property " & strKey & ": " & strValue & return
		end repeat
		set strScript to (strScript & "end script")
		run script strScript
	end MakeObject
	
	on GetStyleNames()
		set lstNames to ListKeyValueSets(pSettingsPath)
		set my text item delimiters to linefeed
		set lstNames to paragraphs of (do shell script "echo " & quoted form of (lstNames as text) & " | sort")
		set my text item delimiters to space
		lstNames
	end GetStyleNames
	
	-- Add a named list of key-value pairs to the PLIST file with the specified path (creating the PLIST file if needed)
	on StoreKeyValueSet(strSetName, KeyValuePairs, strPlistPath)
		set oPlist to GetPlistFile(strPlistPath)
		tell application id "sevs"
			tell contents of oPlist
				tell property list items of contents of (make new property list item at end of property list items with properties {kind:record, name:strSetName})
					repeat with i from 1 to length of KeyValuePairs
						set {strKey, varValue} to item i of KeyValuePairs
						make new property list item at end with properties {name:strKey, value:varValue}
					end repeat
				end tell
			end tell
		end tell
	end StoreKeyValueSet
	
	-- Delete (if it exists) the named list of key-value pairs from the PLIST file with the specified path
	on DeleteKeyValueSet(strSetName, strPlistPath)
		if FileExists(strPlistPath) then
			set oPlist to GetPlistFile(strPlistPath)
			tell application id "sevs"
				tell contents of contents of oPlist
					if (count of (property list items where name = strSetName)) > 0 then
						set strDomain to text 1 thru -7 of strPlistPath -- remove .plist extension
						do shell script "defaults delete " & quoted form of strDomain & space & quoted form of strSetName
					end if
				end tell
			end tell
		else
			WarnNoPlist(strPlistPath)
		end if
	end DeleteKeyValueSet
	
	-- Read if it exists the named list of key-value pairs from the PLIST file with the specified path
	on ReadKeyValueSet(strSetName, strPlistPath)
		if FileExists(strPlistPath) then
			set oPlist to GetPlistFile(strPlistPath)
			tell application id "sevs"
				tell contents of contents of oPlist
					set refMatches to a reference to (property list items where name = strSetName)
					if (count of refMatches) > 0 then
						set {lstName, lstValue} to {name, value} of (property list items of (first item of refMatches))
						repeat with i from 1 to length of lstName
							set item i of lstName to {item i of lstName, item i of lstValue}
						end repeat
						return lstName
					else
						return missing value
					end if
				end tell
			end tell
		else
			WarnNoPlist(strPlistPath)
		end if
	end ReadKeyValueSet
	
	-- Get a list of any named sets of key-value pairs in the PLIST file with the specified path
	on ListKeyValueSets(strPlistPath)
		if FileExists(strPlistPath) then
			set oPlist to GetPlistFile(strPlistPath)
			tell application id "sevs" to return name of (property list items of contents of contents of oPlist) -- returns a list
		else
			WarnNoPlist(strPlistPath)
		end if
	end ListKeyValueSets
	
	on WarnNoPlist(strPlistPath)
		tell application id "sevs"
			activate
			display alert "PLIST file not found: " & return & return & strPlistPath
		end tell
		return false
	end WarnNoPlist
	
	on GetPlistFile(strPathName)
		tell application id "sevs"
			if my FileExists(strPathName) then
				return property list file strPathName
			else
				set oDict to make new property list item with properties {kind:record}
				return (make new property list file with properties {contents:oDict, name:strPathName})
			end if
		end tell
	end GetPlistFile
	
	on EditStyle(strSummary)
		tell application id "sevs"
			activate
			set varNew to display dialog "(To create a new style, edit the name of the current style)
	
	
Edit settings:" default answer strSummary with title pstrStyleEdit
			set strEdited to text returned of varNew
		end tell
		
		-- Convert the edited lines back to a list of pairs
		set lstSettings to Lines2List(strEdited)
		
		-- assign the list of pairs back to the class and clear oStyleObject
		
		if length of lstSettings > 0 then
			set lstPairs to items 2 thru -1 of lstSettings
			tell my sCurrentStyle
				set KeyValuePairs of it to lstPairs
				set oStyleObject of it to missing value
				set strStyleName to item 2 of first item of lstSettings
				set StyleName of it to strStyleName
			end tell
			
			StoreKeyValueSet(strStyleName, lstPairs, pSettingsPath)
		end if
	end EditStyle
	
	on List2Lines(KeyValuePairs, strPrefix)
		set str to ""
		repeat with oPair in KeyValuePairs
			set {strKey, varValue} to oPair
			set cClass to class of varValue
			if cClass is text then
				set strValue to quote & varValue & quote
			else if cClass is list then
				set strValue to ListAsString(varValue)
			else
				set strValue to varValue
			end if
			set str to str & strPrefix & strKey & ": " & strValue & linefeed
		end repeat
		do shell script "echo " & quoted form of str & " | sort "
	end List2Lines
	
	on Lines2List(strLines)
		set lstLines to paragraphs of strLines
		if (count of lstLines) < 1 then return {}
		repeat while last item of lstLines = ""
			set lstLines to items 1 thru -2 of lstLines
		end repeat
		set my text item delimiters to ": "
		set lst to {}
		repeat with i from 1 to length of lstLines
			set lstPair to text items of item i of lstLines
			if length of lstPair = 2 then
				set item 2 of lstPair to run script item 2 of lstPair
				set end of lst to lstPair
			end if
		end repeat
		lst
	end Lines2List
	
	on ListAsString(varValue)
		if length of varValue > 0 then
			set str to "{"
			repeat with i from 1 to length of varValue
				set str to str & item i of varValue & ", "
			end repeat
			(text 1 thru -3 of str) & "}"
		else
			"{}"
		end if
	end ListAsString
	
end script

Last edited by RobTrew; 2011-05-24 at 10:28 AM.. Reason: draft .006 Simplified - plist functions grouped in one class
 
FWIW I have generalized the above with a function which serializes a specified sub-set of the properties of an object into a list of {property name, property value} pairs, which can be written to a plist file.

Inelegant, but serviceable enough, I think:

Code:
-- SERIALIZE THE RELEVANT PROPERTIES OF AN OBJECT AS A LIST OF KEY-VALUE PAIRS,
-- TO BE WRITTEN TO A PLIST FILE
on Serialize(oObject, lstProps)
	set lst to {}
	repeat with oKey in lstProps
		set end of lst to {oKey, my GetProp(oKey, oObject)}
	end repeat
	return lst
end Serialize

on GetProp(strPropName, oObject)
	run script "
		on run {refObject}
			get " & strPropName & " of refObject
		end run
" with parameters {oObject}
end GetProp
 
 


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