Python pdfmetrics.getFont函数代码示例

 def test_instanceStringWidth(self):
     from reportlab.pdfbase.pdfmetrics import registerFont, getFont, _fonts, unicode2T1
     from reportlab.pdfbase.ttfonts import TTFont
     ttfn = 'Vera'
     t1fn = 'Times-Roman'
     registerFont(TTFont(ttfn, "Vera.ttf"))
     ttf = getFont(ttfn)
     t1f = getFont(t1fn)
     testCp1252 = b'copyright \xa9 trademark \x99 registered \xae ReportLab! Ol\xe9!'
     enc='cp1252'
     senc = 'utf8'
     ts = b'ABCDEF\xce\x91\xce\xb2G'
     utext = b'ABCDEF\xce\x91\xce\xb2G'.decode(senc)
     fontSize = 12
     defns="ttfn t1fn ttf t1f testCp1252 enc senc ts utext fontSize ttf.face ttf.face.charWidths ttf.face.defaultWidth t1f.widths t1f.encName t1f.substitutionFonts _fonts"
     import sys
     F = []
     def tfunc(f,ts,fontSize,enc,funcs,i):
         w1 = funcs[i][0](f,ts,fontSize,enc)
         w2 = funcs[1][0](f,ts,fontSize,enc) #python version
         if abs(w1-w2)>=1e-10: F.append("stringWidth%s(%r,%r,%s,%r)-->%r != f._py_stringWidth(...)-->%r" % (fontType,f,ts,fontSize,enc,w1,w2))
     for font,fontType in ((t1f,'T1'),(ttf,'TTF')):
         funcs = getFuncs('instanceStringWidth'+fontType)
         for i,kind in enumerate(('c','py')):
             for j in (3,2,1,0): #we run several times to allow the refcounts to stabilize
                 if j: rcv = getrc(defns)
                 tfunc(font,testCp1252,fontSize,enc,funcs,i)
                 tfunc(font,ts,fontSize,senc,funcs,i)
                 tfunc(font,utext,fontSize,senc,funcs,i)
                 if not j:
                     rcc = checkrc(defns,rcv)
                     if rcc: F.append("%s %s refcount diffs (%s)" % (fontType,kind,rcc))
     assert not F,"instanceStringWidth failures\n\t%s" % '\n\t'.join(F)

    def define(self, name, engine, enginefontname):
        """Define a new font.

        ``name`` is the name that will be used for this font in the
        presentation text.

        ``engine`` is the font engine.  MagicPoint supports several,
        but mgp2pdf supports only "xfont".

        ``enginefontname`` is the name of the font according to the
        font engine.  For ``xfont`` it can be "family", "family-weight"
        or "family-weight-slant".  Or it can be a fontconfig pattern.
        """
        if engine != "xfont":
            raise NotImplementedError("unsupported font engine %s" % engine)
        if '-' in enginefontname and ':' not in enginefontname:
            if enginefontname.count('-') == 1:
                # family-weight
                family, weight = enginefontname.split('-')
                weight = self.weights.get(weight, weight)
                enginefontname = '%s:weight=%s' % (family, weight)
            elif enginefontname.count('-') == 2:
                # family-weight-slant
                family, weight, slant = enginefontname.split('-')
                weight = self.weights.get(weight, weight)
                slant = {'i': 'italic', 'r': 'roman'}[slant]
                enginefontname = '%s:weight=%s:slant=%s' % (family, weight, slant)
        filename = subprocess.Popen(
            ['fc-match', enginefontname, '-f', '%{file}'],
            stdout=subprocess.PIPE).communicate()[0].strip()
        if not filename:
            sys.exit('Could not find the font file for %s' % enginefontname)
        log.debug("Font %s: %s -> %s" % (name, enginefontname, filename))
        pdfmetrics.registerFont(TTFont(name, filename))
        pdfmetrics.getFont(name)  # just see if raises

 def test_instanceStringWidth(self):
     from reportlab.pdfbase.pdfmetrics import registerFont, getFont, _fonts, unicode2T1
     from reportlab.pdfbase.ttfonts import TTFont
     ttfn = 'Vera'
     t1fn = 'Times-Roman'
     registerFont(TTFont(ttfn, "Vera.ttf"))
     ttf = getFont(ttfn)
     t1f = getFont(t1fn)
     testCp1252 = 'copyright %s trademark %s registered %s ReportLab! Ol%s!' % (chr(169), chr(153),chr(174), chr(0xe9))
     enc='cp1252'
     senc = 'utf8'
     ts = 'ABCDEF\xce\x91\xce\xb2G'
     utext = 'ABCDEF\xce\x91\xce\xb2G'.decode(senc)
     fontSize = 12
     defns="ttfn t1fn ttf t1f testCp1252 enc senc ts utext fontSize ttf.face ttf.face.charWidths ttf.face.defaultWidth t1f.widths t1f.encName t1f.substitutionFonts _fonts"
     rcv = getrc(defns)
     def tfunc(f,ts,fontSize,enc):
         w1 = f.stringWidth(ts,fontSize,enc)
         w2 = f._py_stringWidth(ts,fontSize,enc)
         assert abs(w1-w2)<1e-10,"f(%r).stringWidthU(%r,%s,%r)-->%r != f._py_stringWidth(...)-->%r" % (f,ts,fontSize,enc,w1,w2)
     tfunc(t1f,testCp1252,fontSize,enc)
     tfunc(t1f,ts,fontSize,senc)
     tfunc(t1f,utext,fontSize,senc)
     tfunc(ttf,ts,fontSize,senc)
     tfunc(ttf,testCp1252,fontSize,enc)
     tfunc(ttf,utext,fontSize,senc)
     rcc = checkrc(defns,rcv)
     assert not rcc, "rc diffs (%s)" % rcc

 def testStringWidth(self):
     from _rl_accel import stringWidthU
     from reportlab.pdfbase.pdfmetrics import _py_stringWidth, getFont, registerFont, _fonts 
     from reportlab.pdfbase.ttfonts import TTFont
     ttfn = 'Vera'
     t1fn = 'Times-Roman'
     registerFont(TTFont(ttfn, "Vera.ttf"))
     ttf = getFont(ttfn)
     t1f = getFont(t1fn)
     testCp1252 = 'copyright %s trademark %s registered %s ReportLab! Ol%s!' % (chr(169), chr(153),chr(174), chr(0xe9))
     enc='cp1252'
     senc = 'utf8'
     intern(senc)
     ts = 'ABCDEF\xce\x91\xce\xb2G'
     utext = 'ABCDEF\xce\x91\xce\xb2G'.decode('utf8')
     fontSize = 12
     stringWidthU(testCp1252,t1fn,fontSize,enc)      #avoid obscure startup initialization problems
     defns="ttfn t1fn ttf t1f testCp1252 enc senc ts utext fontSize ttf.face ttf.face.charWidths ttf.face.defaultWidth t1f.widths t1f.encName t1f.substitutionFonts _fonts"
     rcv = getrc(defns)  #first count
     def tfunc(ts,fn,fontSize,enc):
         w1 = stringWidthU(ts,fn,fontSize,enc)
         w2 = _py_stringWidth(ts,fn,fontSize,enc)
         assert abs(w1-w2)<1e-10,"stringWidthU(%r,%r,%s,%r)-->%r != _py_stringWidth(...)-->%r" % (ts,fn,fontSize,enc,w1,w2)
     tfunc(testCp1252,t1fn,fontSize,enc)
     tfunc(ts,t1fn,fontSize,senc)
     tfunc(utext,t1fn,fontSize,senc)
     tfunc(ts,ttfn,fontSize,senc)
     tfunc(testCp1252,ttfn,fontSize,enc)
     tfunc(utext,ttfn,fontSize,senc)
     rcc = checkrc(defns,rcv)    #second count and compare
     assert not rcc, "rc diffs (%s)" % rcc

def registerFonts(fontlist):
    """
    Registeres specified fonts for use in PDF.

    fontlist -- list of (fontname, relpath) tuples
        fontname -- name for font registration
        relpath -- path to TTF font relative to this function
    """
    from os import path, sep
    from inspect import getfile, currentframe
    from reportlab.pdfbase import pdfmetrics
    from reportlab.pdfbase.ttfonts import TTFont

    for (fontname, relpath) in fontlist:

        # check if already registered

        try:
            pdfmetrics.getFont(fontname)
            continue  # font already registered
        except KeyError:
            pass  # font not registered

        selfPath = path.dirname(path.abspath(getfile(currentframe())))
        ttfFile = selfPath + sep + relpath
        pdfmetrics.registerFont(TTFont(fontname, ttfFile))

def testStringWidth(incFontSize):
    '''example from the reportlab test set'''
    from _rl_accel import stringWidthU
    from reportlab.pdfbase.pdfmetrics import _py_stringWidth, getFont, registerFont, _fonts 
    from reportlab.pdfbase.ttfonts import TTFont
    ttfn = 'Luxi-Serif'
    t1fn = 'Times-Roman'
    registerFont(TTFont(ttfn, "luxiserif.ttf"))
    ttf = getFont(ttfn)
    t1f = getFont(t1fn)
    testCp1252 = 'copyright %s trademark %s registered %s ReportLab! Ol%s!' % (chr(169), chr(153),chr(174), chr(0xe9))
    enc='cp1252'
    senc = 'utf8'
    intern(senc)
    ts = 'ABCDEF\xce\x91\xce\xb2G'
    utext = 'ABCDEF\xce\x91\xce\xb2G'.decode('utf8')
    fontSize = 12
    defns="ttfn t1fn ttf t1f testCp1252 enc senc ts utext fontSize ttf.face ttf.face.charWidths ttf.face.defaultWidth t1f.widths t1f.encName t1f.substitutionFonts _fonts"
    rcv = getrc(defns)  #compute initial ref
    def tfunc(ts,fn,fontSize,enc):
        w1 = stringWidthU(ts,fn,fontSize,enc)
        w2 = _py_stringWidth(ts,fn,fontSize,enc)
        assert abs(w1-w2)<1e-10,"stringWidthU(%r,%r,%s,%r)-->%r != _py_stringWidth(...)-->%r" % (ts,fn,fontSize,enc,w1,w2)
    tfunc(testCp1252,t1fn,fontSize,enc)
    tfunc(ts,t1fn,fontSize,senc)
    tfunc(utext,t1fn,fontSize,senc)
    tfunc(ts,ttfn,fontSize,senc)
    tfunc(testCp1252,ttfn,fontSize,enc)
    tfunc(utext,ttfn,fontSize,senc)
    if incFontSize:
        z = fontSize    #simulate adding a reference to fontSize
    print checkrc(defns,rcv)

def select_fontname(fontname, default_fontname):
    if fontname not in pdfmetrics.getRegisteredFontNames()\
         or fontname not in pdfmetrics.standardFonts:
        # let reportlab attempt to find it
        try:
            pdfmetrics.getFont(fontname)
        except Exception:
            _logger.warning('Could not locate font %s, substituting default: %s',
                fontname, default_fontname)
            fontname = default_fontname
    return fontname

 def setFont(self, node):
     fontname = node.get('name')
     if fontname not in pdfmetrics.getRegisteredFontNames()\
          or fontname not in pdfmetrics.standardFonts:
             # let reportlab attempt to find it
             try:
                 pdfmetrics.getFont(fontname)
             except Exception:
                 _logger.debug('Could not locate font %s, substituting default: %s',
                              fontname,
                              self.canvas._fontname)
                 fontname = self.canvas._fontname
     return self.canvas.setFont(fontname, utils.unit_get(node.get('size')))

def select_fontname(fontname, default_fontname):
    if fontname not in pdfmetrics.getRegisteredFontNames()\
         or fontname not in pdfmetrics.standardFonts:
        # let reportlab attempt to find it
        try:
            pdfmetrics.getFont(fontname)
        except Exception:
            addition = ""
            if " " in fontname:
                addition = ". Your font contains spaces which is not valid in RML."
            _logger.warning('Could not locate font %s, substituting default: %s%s',
                fontname, default_fontname, addition)
            fontname = default_fontname
    return fontname

    def Dessine_macaron(self, texte="", rond=False):
        """ Dessine un cadre arrondi et un texte dans le coin haut droit de la case """
        # Dessine le rectangle de fond
        if self.parent.dictDonnees["case_macaron_mix_couleurs"] == False :
            case_macaron_bord_couleur = self.parent.dictDonnees["case_macaron_bord_couleur"]
            case_macaron_fond_couleur = self.parent.dictDonnees["case_macaron_fond_couleur"]
        else :
            # Mix de couleur
            couleur = MixCouleurs()
            case_macaron_bord_couleur = wx.Colour(*couleur)
            case_macaron_fond_couleur = wx.Colour(*couleur)

        self.canvas.setStrokeColor(ColorWxToPdf(case_macaron_bord_couleur, alpha=self.parent.dictDonnees["case_macaron_bord_alpha"]/100.0))
        self.canvas.setFillColor(ColorWxToPdf(case_macaron_fond_couleur, alpha=self.parent.dictDonnees["case_macaron_fond_alpha"]/100.0))

        if self.parent.dictDonnees["case_macaron_type"] == "rond" :
            self.canvas.circle(x_cen=self.largeur_case - self.parent.dictDonnees["case_macaron_largeur"] / 2.0 -5, y_cen=self.hauteur_case - self.parent.dictDonnees["case_macaron_hauteur"] / 2.0 -5, r=self.parent.dictDonnees["case_macaron_taille_police"]-3, stroke=True, fill=True)
            largeur, hauteur = self.parent.dictDonnees["case_macaron_largeur"] + 10, self.parent.dictDonnees["case_macaron_hauteur"] + 10
        else :
            self.canvas.roundRect(x=self.largeur_case - self.parent.dictDonnees["case_macaron_largeur"], y=self.hauteur_case - self.parent.dictDonnees["case_macaron_hauteur"], width=self.parent.dictDonnees["case_macaron_largeur"] + self.parent.dictDonnees["case_macaron_radius"], height=self.parent.dictDonnees["case_macaron_hauteur"] + self.parent.dictDonnees["case_macaron_radius"], radius=self.parent.dictDonnees["case_macaron_radius"], stroke=True, fill=True)
            largeur, hauteur = self.parent.dictDonnees["case_macaron_largeur"], self.parent.dictDonnees["case_macaron_hauteur"]

        # Calcule la hauteur du texte
        face = pdfmetrics.getFont(self.parent.dictDonnees["case_macaron_nom_police"]).face
        hauteur_font = face.ascent * self.parent.dictDonnees["case_macaron_taille_police"] / 1000.0

        # Ecrit le texte
        self.canvas.setFont(self.parent.dictDonnees["case_macaron_nom_police"], size=self.parent.dictDonnees["case_macaron_taille_police"])
        self.canvas.setFillColor(ColorWxToPdf(self.parent.dictDonnees["case_macaron_texte_couleur"], alpha=1))
        self.canvas.drawCentredString(self.largeur_case - largeur + largeur / 2.0, self.hauteur_case - (hauteur / 2.0 + hauteur_font / 2.0), texte)

 def hDraw(self, c, msg, fnt, x, y):
     "Helper - draws it with a box around"
     c.setFont(fnt, 16, 16)
     font = pdfmetrics.getFont(fnt)
     c.drawString(x, y, msg)
     width = font.stringWidth(msg, 16)
     c.rect(x,y,width,16,stroke=1,fill=0)

def draw_text(string, text, font, size, width, leading=None):
    if leading:
        text.setFont(font, size, leading=leading)
    else:
        text.setFont(font, size)
    font = pdfmetrics.getFont(font)
    if font.stringWidth(string, size) > width:
        bits = string.split(' ')
        while bits:
            did_something = False

            for i in range(1, len(bits) + 1):
                if font.stringWidth(' '.join(bits[:i]), size) > width:
                    if i == 1:
                        i = 2
                    text.textLine(' '.join(bits[:i - 1]))
                    bits = bits[i - 1:]
                    did_something = True
                    break

            if not did_something:
                text.textLine(' '.join(bits))
                break
    else:
        text.textLine(string)

 def _formatText(self, text):
     "Generates PDF text output operator(s)"
     if self._dynamicFont:
         #it's a truetype font and should be utf8.  If an error is raised,
         
         results = []
         font = pdfmetrics.getFont(self._fontname)
         try: #assume UTF8
             stuff = font.splitString(text, self._canvas._doc)
         except UnicodeDecodeError:
             #assume latin1 as fallback
             from reportlab.pdfbase.ttfonts import latin1_to_utf8
             from reportlab.lib.logger import warnOnce
             warnOnce('non-utf8 data fed to truetype font, assuming latin-1 data')
             text = latin1_to_utf8(text)
             stuff = font.splitString(text, self._canvas._doc)
         for subset, chunk in stuff:
             if subset != self._curSubset:
                 pdffontname = font.getSubsetInternalName(subset, self._canvas._doc)
                 results.append("%s %s Tf %s TL" % (pdffontname, fp_str(self._fontsize), fp_str(self._leading)))
                 self._curSubset = subset
             chunk = self._canvas._escape(chunk)
             results.append("(%s) Tj" % chunk)
         return string.join(results, ' ')
     else:
         text = self._canvas._escape(text)
         return "(%s) Tj" % text

def telemetry(font, size):
    """
    Return telemetry information about a given font.
    
    Returns a dict, with the following members:
    { 
      'm_width': float, approximated 'em square' size (rough),
      'ascent': float, maximum height of text above baseline,
      'descent': float, maxmim height of text below baseline,
      'max_height': float, ascent+descent
    }
    """
    face = getFont(font).face
    
    # +30% 'fudge' factor
    m_width = stringWidth('M', font, size)*1.3
    
    ascent = float(face.ascent)*m_width/1000       
    descent = float(face.descent*-1)*m_width/1000
    
    return {
        'm_width': m_width,
        'ascent': ascent,
        'descent': descent,
        'max_height': ascent+descent,
    }

 def _calcHeight(self):
     dy = self.dy
     yGap = self.yGap
     thisy = upperlefty = self.y - dy
     fontSize = self.fontSize
     ascent=getFont(self.fontName).face.ascent/1000.
     if ascent==0: ascent=0.718 # default (from helvetica)
     ascent *= fontSize
     leading = fontSize*1.2
     deltay = self.deltay
     if not deltay: deltay = max(dy,leading)+self.autoYPadding
     columnCount = 0
     count = 0
     lowy = upperlefty
     lim = self.columnMaximum - 1
     for name in self._getTexts(self.colorNamePairs):
         y0 = thisy+(dy-ascent)*0.5
         y = y0 - _getLineCount(name)*leading
         leadingMove = 2*y0-y-thisy
         newy = thisy-max(deltay,leadingMove)-yGap
         lowy = min(y,newy,lowy)
         if count==lim:
             count = 0
             thisy = upperlefty
             columnCount = columnCount + 1
         else:
             thisy = newy
             count = count+1
     return upperlefty - lowy