#!/usr/bin/env python3 import inkex from inkex.bezier import csplength, csparea from lxml import etree import re import math class LaserCheck(inkex.EffectExtension): ''' check for old styles which should be upgraded ''' #def add_arguments(self, pars): # pars.add_argument('-d', '--depth', type = int, default = 1, help = 'Convert nested group up to DEPTH layers deep') def effect(self): def parseChildren(element): if element not in selected: selected.append(element) children = element.getchildren() if children is not None: for child in children: if child not in selected: selected.append(child) parseChildren(child) #go deeper and deeper #check if we have selected elements or if we should parse the whole document instead selected = [] #total list of elements to parse if len(self.svg.selected) == 0: for element in self.document.getroot().iter(tag=etree.Element): if element != self.document.getroot(): selected.append(element) else: for element in self.svg.selected.values(): parseChildren(element) namedView = self.document.getroot().find(inkex.addNS('namedview', 'sodipodi')) doc_units = namedView.get(inkex.addNS('document-units', 'inkscape')) pagecolor = namedView.get('pagecolor') inkex.utils.debug("Document units: {}".format(doc_units)) inkex.utils.debug("---------- Groups and layers") groups = [] layers = [] for element in selected: if element.tag == inkex.addNS('g','svg'): if element.get('inkscape:groupmode') == 'layer': layers.append(element) else: groups.append(element) inkex.utils.debug("{} groups in total".format(len(groups))) inkex.utils.debug("{} layers in total".format(len(layers))) #check for empty groups for group in groups: if len(group) == 0: inkex.utils.debug("group id={} is empty".format(group.get('id'))) #check for empty layers for layer in layers: if len(layer) == 0: inkex.utils.debug("layer id={} is empty".format(layer.get('id'))) inkex.utils.debug("---------- Clones (svg:use) - maybe unlink") uses = [] for element in selected: if element.tag == inkex.addNS('use','svg'): uses.append(element) inkex.utils.debug("{} svg:use clones in total".format(len(uses))) for use in uses: inkex.utils.debug("clone id={}".format(use.get('id'))) inkex.utils.debug("---------- Clippings (svg:clipPath) - please replace with real cut paths") clipPaths = [] for element in selected: if element.tag == inkex.addNS('clipPath','svg'): clipPaths.append(element) inkex.utils.debug("{} svg:clipPath in total".format(len(clipPaths))) for clipPath in clipPaths: inkex.utils.debug("clipPath id={}".format(clipPath.get('id'))) inkex.utils.debug("---------- Images (svg:image) - maybe trace to svg") images = [] for element in selected: if element.tag == inkex.addNS('image','svg'): images.append(element) inkex.utils.debug("{} svg:image in total".format(len(images))) for image in images: inkex.utils.debug("image id={}".format(image.get('id'))) inkex.utils.debug("---------- Low level strokes (svg:line/polyline/polygon) - maybe convert to path") lowlevels = [] for element in selected: if element.tag in (inkex.addNS('line','svg'), inkex.addNS('polyline','svg'), inkex.addNS('polygon','svg')): lowlevels.append(element) inkex.utils.debug("{} low level strokes in total".format(len(lowlevels))) for lowlevel in lowlevels: inkex.utils.debug("stroke id={}".format(lowlevel.get('id'))) inkex.utils.debug("---------- Texts (should be converted to paths)") texts = [] for element in selected: if element.tag == inkex.addNS('text','svg'): texts.append(element) inkex.utils.debug("{} svg:text in total".format(len(texts))) for text in texts: inkex.utils.debug("text id={}".format(text.get('id'))) inkex.utils.debug("---------- Shapes / Non-shapes") nonShapes = [] shapes = [] for element in selected: if not isinstance(element, inkex.ShapeElement): nonShapes.append(element) else: shapes.append(element) inkex.utils.debug("{} shape elements in total".format(len(shapes))) inkex.utils.debug("{} non-shape elements in total".format(len(nonShapes))) for nonShape in nonShapes: inkex.utils.debug("non-shape id={}".format(nonShape.get('id'))) inkex.utils.debug("---------- Stroke colors") strokeColors = [] for element in shapes: style = element.get('style') if style is not None: stroke = re.search('(;|^)stroke:(.*?)(;|$)', style) if stroke is not None: strokeColor = stroke[0].split("stroke:")[1].split(";")[0] if strokeColor not in strokeColors: strokeColors.append(strokeColor) inkex.utils.debug("{} different stroke colors in total".format(len(strokeColors))) for strokeColor in strokeColors: inkex.utils.debug("stroke color {}".format(strokeColor)) inkex.utils.debug("---------- Borders around all elements - minimum offset 5mm from each side") bbox = inkex.BoundingBox() for element in self.document.getroot().iter(tag=etree.Element): if element != self.document.getroot() and isinstance(element, inkex.ShapeElement) and element.tag != inkex.addNS('use','svg') and element.get('inkscape:groupmode') != 'layer': #bbox fails for svg:use elements and layers transform = inkex.Transform() parent = element.getparent() if parent is not None and isinstance(parent, inkex.ShapeElement): transform = parent.composed_transform() try: bbox += element.bounding_box(transform) except Exception: transform = element.composed_transform() x1, y1 = transform.apply_to_point([0, 0]) x2, y2 = transform.apply_to_point([1, 1]) bbox += inkex.BoundingBox((x1, x2), (y1, y2)) if abs(bbox.width) == math.inf or abs(bbox.height) == math.inf: inkex.utils.debug("bounding box could not be calculated") else: inkex.utils.debug("bounding box is {}".format(bbox)) page_width = self.svg.unittouu(self.document.getroot().attrib['width']) width_height = self.svg.unittouu(self.document.getroot().attrib['height']) fmm = self.svg.unittouu("5mm") if bbox.left > fmm: self.msg("left ok") else: self.msg("left fail") if bbox.top > fmm: self.msg("top ok") else: self.msg("top fail") if bbox.right + fmm <= page_width: self.msg("right ok") else: self.msg("right fail") if bbox.bottom + fmm <= width_height: self.msg("bottom ok") else: self.msg("bottom fail") inkex.utils.debug("---------- Stroke widths") strokeWidths = [] for element in shapes: style = element.get('style') if style is not None: stroke_width = re.search('stroke-width:(.*?)(;|$)', style) if stroke_width is not None: strokeWidth = self.svg.unittouu(stroke_width[0].split("stroke-width:")[1].split(";")[0]) if strokeWidth not in strokeWidths: strokeWidths.append(strokeWidth) inkex.utils.debug("{} different stroke widths in total".format(len(strokeWidths))) for strokeWidth in strokeWidths: inkex.utils.debug("stroke width {}".format(strokeWidth)) inkex.utils.debug("---------- Cosmetic dashes - should be converted to paths") strokeDasharrays = [] for element in shapes: style = element.get('style') if style is not None: stroke_dasharray = re.search('stroke-dasharray:(.*?)(;|$)', style) if stroke_dasharray is not None: strokeDasharray = stroke_dasharray[0].split("stroke-dasharray:")[1].split(";")[0] if strokeDasharray not in strokeDasharrays: strokeDasharrays.append(strokeDasharray) inkex.utils.debug("{} different stroke dash arrays in total".format(len(strokeDasharrays))) for strokeDasharray in strokeDasharrays: inkex.utils.debug("stroke dash array {}".format(strokeDasharray)) inkex.utils.debug("---------- Invisible shapes") invisibles = [] for element in shapes: if element.tag not in (inkex.addNS('tspan','svg')): style = element.get('style') if style is not None: stroke = re.search('stroke:(.*?)(;|$)', style) #filter white on white (we guess the background color of the document is white too but we do not check) if stroke is None: strokeVis = 0 elif stroke[0].split("stroke:")[1].split(";")[0] == 'none': strokeVis = 0 elif stroke[0].split("stroke:")[1].split(";")[0] in ('#ffffff', 'white', 'rgb(255,255,255)'): strokeVis = 0 else: strokeVis = 1 stroke_width = re.search('stroke-width:(.*?)(;|$)', style) if stroke_width is None: widthVis = 0 elif self.svg.unittouu(stroke_width[0].split("stroke-width:")[1].split(";")[0]) < 0.005: #really thin (0,005pc = 0,080px) widthVis = 0 else: widthVis = 1 stroke_opacity = re.search('stroke-opacity:(.*?)(;|$)', style) if stroke_opacity is None: strokeOpacityVis = 0 elif float(stroke_opacity[0].split("stroke-opacity:")[1].split(";")[0]) < 0.05: #nearly invisible (<5% opacity) strokeOpacityVis = 0 else: strokeOpacityVis = 1 if pagecolor == '#ffffff': invisColors = [pagecolor, 'white', 'rgb(255,255,255)'] else: invisColors = [pagecolor] #we could add some parser to convert pagecolor to rgb/hsl/cmyk fill = re.search('fill:(.*?)(;|$)', style) if fill is None: fillVis = 0 elif fill[0].split("fill:")[1].split(";")[0] == 'none': fillVis = 0 elif fill[0].split("fill:")[1].split(";")[0] in invisColors: fillVis = 0 else: fillVis = 1 fill_opacity = re.search('fill-opacity:(.*?)(;|$)', style) if fill_opacity is None: fillOpacityVis = 0 elif float(fill_opacity[0].split("fill-opacity:")[1].split(";")[0]) < 0.05: #nearly invisible (<5% opacity) fillOpacityVis = 0 else: fillOpacityVis = 1 #self.msg("strokeVis={}, widthVis={}, strokeOpacityVis={}, fillVis={}, fillOpacityVis={}".format(strokeVis, widthVis, strokeOpacityVis, fillVis, fillOpacityVis)) if (strokeVis == 0 or widthVis == 0 or strokeOpacityVis == 0) and (fillVis == 0 or fillOpacityVis == 0): if element not in invisibles: invisibles.append(element) inkex.utils.debug("{} invisible shapes in total".format(len(invisibles))) for invisible in invisibles: inkex.utils.debug("shape id={}".format(invisible.get('id'))) inkex.utils.debug("---------- Objects with stroke transparencies (< 1.0) - should be set to 1.0") transparencies = [] for element in shapes: style = element.get('style') if style is not None: stroke_opacity = re.search('stroke-opacity:(.*?)(;|$)', style) if stroke_opacity is not None: if float(stroke_opacity[0].split("stroke-opacity:")[1].split(";")[0]) < 1.0: if element not in transparencies: transparencies.append(element) inkex.utils.debug("{} stroke transparencies shapes in total".format(len(transparencies))) for transparency in transparencies: inkex.utils.debug("shape id={}".format(transparency.get('id'))) inkex.utils.debug("---------- Pointy paths - should be deleted") pointyPaths = [] for element in shapes: if isinstance(element, inkex.PathElement): p = element.path commandsCoords = p.to_arrays() if len(commandsCoords) == 1 or \ (len(commandsCoords) == 2 and commandsCoords[0][1] == commandsCoords[1][1]) or \ (len(commandsCoords) == 2 and commandsCoords[-1][0] == 'Z') or \ (len(commandsCoords) == 3 and commandsCoords[0][1] == commandsCoords[1][1] and commandsCoords[2][1] == 'Z'): pointyPaths.append(element) inkex.utils.debug("{} pointy paths in total".format(len(pointyPaths))) for pointyPath in pointyPaths: inkex.utils.debug("path id={}".format(pointyPath.get('id'))) inkex.utils.debug("---------- Transformations - should be applied to absolute") transformations = [] for element in shapes: if element.get('transform') is not None: transformations.append(element) inkex.utils.debug("{} transformation in total".format(len(transformations))) for transformation in transformations: inkex.utils.debug("transformation in id={}".format(transformation.get('id'))) inkex.utils.debug("---------- Short paths (< 1mm)") shortPaths = [] for element in shapes: if isinstance(element, inkex.PathElement): slengths, stotal = csplength(element.path.transform(element.composed_transform()).to_superpath()) if stotal < self.svg.unittouu("1mm"): shortPaths.append(element) inkex.utils.debug("{} short paths in total".format(len(shortPaths))) for shortPath in shortPaths: inkex.utils.debug("short path id={}".format(shortPath.get('id'))) if __name__ == '__main__': LaserCheck().run()