Making layout grid with guides

This is my first Python script. (Sorry if it is ugly, but my native language is Rebol). It makes a "layout grid" useful for designing newspapers and magazines.

José Antonio Meira da Rocha joseantoniorocha@gmail.com http://meiradarocha.jor.br/news/about """Generate a grid of guides for layout porpouses. Ask user for number of columns, number of rows and gap measure. """ import sys
 * 1) !/usr/bin/env python2.3
 * 2) -*- coding: utf-8 -*-

"""Locale strings to be translated """ numColStr1 = 'Número de colunas' #How many columns numColStr2 = 'Quantas colunas?' #How many columns? numLinStr1 = 'Número de linhas' #How many rows numLinStr2 = 'Quantas linhas de módulos?' #How many rows? gapStr1 = 'Largura da valeta' #gap measure gapStr2 = 'Qual a largura das valetas em pontos?' #gap measure in points? TITLE = "Gera linhas-guia" #Generate guides noDocMsg = " Abra um documento, primeiramente Ops! Este script só funciona com um documento aberto. Abra um documento antes de rodar o script." # First, open a doc This script only work on opened document. Open a document before run this script. runningMsg = "Rodando o script..." #"Running script..." noScribusMsg = "This Python script is written for the Scribus scripting interface.\nIt can only be run from within Scribus."

""" Feel free to change defaults""" defaultNumColumns = '5' defaultNumRows = '8' defaultGap = '14.1732' #5mm in points, due a bug in getPageMargins

""" You don't need change nothing below this line """ try: import scribus except ImportError,err: print noScribusMsg sys.exit(1) from scribus import UNIT_POINTS,BUTTON_OK,ICON_WARNING

def odd(num): return num % 2

def main(argv): """Generate guides""" if scribus.haveDoc: scribus.setRedraw(False) numColumns = int(scribus.valueDialog(numColStr1, numColStr2, defaultNumColumns)) numRows = int(scribus.valueDialog(numLinStr1, numLinStr2, defaultNumRows)) gap = float(scribus.valueDialog(gapStr1, gapStr2, defaultGap)) unit = scribus.getUnit # save original unit scribus.setUnit(UNIT_POINTS) # working in points, due a bug in getPageMargins pageWidth, pageHeight = scribus.getPageSize # The margins order is wrong in Scripter documentation topMargin, leftMargin, rightMargin, bottomMargin = scribus.getPageMargins printAreaWidth = pageWidth  - leftMargin - rightMargin printAreaHeight = pageHeight - topMargin - bottomMargin numVgaps = numColumns-1 numHgaps = numRows-1 columnWidth = (printAreaWidth-(numVgaps*gap)) / numColumns rowHeight = (printAreaHeight-(numHgaps*gap)) / numRows VGuides = [] HGuides = [] # getPageMargins return only odd page margins. # This correct even margins if not odd(scribus.currentPage): leftMargin = rightMargin # Build vertical guides for i in range(1,numColumns): res = leftMargin+(i*columnWidth)+((i-1)*gap) VGuides.append(res) VGuides.append(res+gap) # Build horizontal guides scribus.setVGuides(VGuides) for i in range(1,numRows): res = topMargin+(i*rowHeight)+((i-1)*gap) HGuides.append(res) HGuides.append(res+gap) scribus.setHGuides(HGuides) scribus.setUnit(unit) # restore original unit else: scribus.messageBox(TITLE, noDocMsg, ICON_WARNING, BUTTON_OK)

def main_wrapper(argv): try: scribus.statusMessage(runningMsg) scribus.progressReset main(argv) finally: if scribus.haveDoc: scribus.setRedraw(True) scribus.statusMessage("") scribus.progressReset

if __name__ == '__main__': main_wrapper(sys.argv)