ttBrowser.py :  » GUI » TTX-FontTools » fonttools-2.3 » Lib » fontTools » ttLib » test » Python Open Source

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Python Open Source » GUI » TTX FontTools 
TTX FontTools » fonttools 2.3 » Lib » fontTools » ttLib » test » ttBrowser.py
"""Mac-OS9-only TrueType browser window, deprecated and no longer maintained."""

from fontTools import ttLib
from fontTools.ttLib import macUtils
import macfs
import PyBrowser
import W, Lists
import os
import ATM
import numpy
import Qd
from rf.views.wGlyphList import GlyphList


class TableBrowser:
  
  def __init__(self, path=None, ttFont=None, res_index=None):
    W.SetCursor('watch')
    if path is None:
      self.ttFont = ttFont
      self.filename = "????"
    else:
      self.ttFont = ttLib.TTFont(path, res_index)
      if res_index is None:
        self.filename = os.path.basename(path)
      else:
        self.filename = os.path.basename(path) + " - " + str(res_index)
    self.currentglyph = None
    self.glyphs = {}
    self.buildinterface()
  
  def buildinterface(self):
    buttonwidth = 120
    glyphlistwidth = 150
    hmargin = 10
    vmargin = 8
    title = self.filename
    tables = self.ttFont.keys()
    tables.sort()
    self.w = w = W.Window((500, 300), title, minsize = (400, 200))
    w.browsetablebutton = W.Button((hmargin, 32, buttonwidth, 16), "Browse table", 
        self.browsetable)
    w.browsefontbutton = W.Button((hmargin, vmargin, buttonwidth, 16), "Browse font", 
        self.browsefont)
    w.tablelist = W.List((hmargin, 56, buttonwidth, -128), tables, self.tablelisthit)
    
    w.divline1 = W.VerticalLine((buttonwidth + 2 * hmargin, vmargin, 1, -vmargin))
    
    gleft = buttonwidth + 3 * hmargin + 1
    
    hasGlyfTable = self.ttFont.has_key('glyf')
    
    glyphnames = self.ttFont.getGlyphNames2()  # caselessly sorted glyph names
    
    if hasGlyfTable:
      w.glyphlist = GlyphList((gleft, 56, glyphlistwidth, -vmargin), 
          glyphnames, self.glyphlisthit)
      
      w.divline2 = W.VerticalLine((buttonwidth + glyphlistwidth + 4 * hmargin + 2, 
          vmargin, 1, -vmargin))
      
      yMin = self.ttFont['head'].yMin
      yMax = self.ttFont['head'].yMax
      w.gviewer = GlyphViewer((buttonwidth + glyphlistwidth + 5 * hmargin + 3, 
          vmargin, -hmargin, -vmargin), yMin, yMax)
      
      w.showpoints = W.CheckBox((gleft, vmargin, glyphlistwidth, 16), "Show points", 
          self.w.gviewer.toggleshowpoints)
      w.showpoints.set(self.w.gviewer.showpoints)
      w.showlines = W.CheckBox((gleft, vmargin + 24, glyphlistwidth, 16), "Show lines",
          self.w.gviewer.toggleshowlines)
      w.showlines.set(self.w.gviewer.showlines)
    else:
      w.glyphlist = GlyphList((gleft, 56, glyphlistwidth, -vmargin), 
          glyphnames)
      w.noGlyphTable = W.TextBox((gleft, vmargin, -20, 20), "no 'glyf' table found")
    
    
    w.setdefaultbutton(w.browsetablebutton)
    
    w.tocurrentfont = W.Button((hmargin, -120, buttonwidth, 16), "Copy to current font", self.copytocurrentfont)
    w.fromcurrentfont = W.Button((hmargin, -96, buttonwidth, 16), "Copy from current font", self.copyfromcurrentfont)
    w.saveflat = W.Button((hmargin, -72, buttonwidth, 16), "Save as flat file", self.saveflat)
    w.savesuitcasebutton = W.Button((hmargin, -48, buttonwidth, 16), "Save as suitcase", self.savesuitcase)
    w.savexmlbutton = W.Button((hmargin, -24, buttonwidth, 16), "Save as XML", self.saveXML)
    
    w.open()
    w.browsetablebutton.enable(0)
  
  def browsetable(self):
    self.tablelisthit(1)
  
  def browsefont(self):
    PyBrowser.Browser(self.ttFont)
  
  def copytocurrentfont(self):
    pass
    
  def copyfromcurrentfont(self):
    pass
    
  def saveflat(self):
    path = putfile("Save font as flat file:", self.filename, ".TTF")
    if path:
      W.SetCursor('watch')
      self.ttFont.save(path)
  
  def savesuitcase(self):
    path = putfile("Save font as suitcase:", self.filename, ".suit")
    if path:
      W.SetCursor('watch')
      self.ttFont.save(path, 1)
  
  def saveXML(self):
    path = putfile("Save font as XML text file:", self.filename, ".ttx")
    if path:
      W.SetCursor('watch')
      pb = macUtils.ProgressBar("Saving %s as XML" % self.filename)
      try:
        self.ttFont.saveXML(path, pb)
      finally:
        pb.close()
  
  def glyphlisthit(self, isDbl):
    sel = self.w.glyphlist.getselectedobjects()
    if not sel or sel[0] == self.currentglyph:
      return
    self.currentglyph = sel[0]
    if self.glyphs.has_key(self.currentglyph):
      g = self.glyphs[self.currentglyph]
    else:
      g = Glyph(self.ttFont, self.currentglyph)
      self.glyphs[self.currentglyph] = g
    self.w.gviewer.setglyph(g)
  
  def tablelisthit(self, isdbl):
    if isdbl:
      for tag in self.w.tablelist.getselectedobjects():
        table = self.ttFont[tag]
        if tag == 'glyf':
          W.SetCursor('watch')
          for glyphname in self.ttFont.getGlyphOrder():
            try:
              glyph = table[glyphname]
            except KeyError:
              pass # incomplete font, oh well.
        PyBrowser.Browser(table)
    else:
      sel = self.w.tablelist.getselection()
      if sel:
        self.w.browsetablebutton.enable(1)
      else:
        self.w.browsetablebutton.enable(0)


class Glyph:
  
  def __init__(self, ttFont, glyphName):
    ttglyph = ttFont['glyf'][glyphName]
    self.iscomposite = ttglyph.numberOfContours == -1
    self.width, self.lsb = ttFont['hmtx'][glyphName]
    if ttglyph.numberOfContours == 0:
      self.xMin = 0
      self.contours = []
      return
    self.xMin = ttglyph.xMin
    coordinates, endPts, flags = ttglyph.getCoordinates(ttFont['glyf'])
    self.contours = []
    self.flags = []
    startpt = 0
    for endpt in endPts:
      self.contours.append(numpy.array(coordinates[startpt:endpt+1]))
      self.flags.append(flags[startpt:endpt+1])
      startpt = endpt + 1
  
  def getcontours(self, scale, move):
    contours = []
    for i in range(len(self.contours)):
      contours.append(((self.contours[i] * numpy.array(scale) + move), self.flags[i]))
    return contours


class GlyphViewer(W.Widget):
  
  def __init__(self, possize, yMin, yMax):
    W.Widget.__init__(self, possize)
    self.glyph = None
    extra = 0.02 * (yMax-yMin)
    self.yMin, self.yMax = yMin - extra, yMax + extra
    self.showpoints = 1
    self.showlines = 1
  
  def toggleshowpoints(self, onoff):
    self.showpoints = onoff
    self.SetPort()
    self.draw()
  
  def toggleshowlines(self, onoff):
    self.showlines = onoff
    self.SetPort()
    self.draw()
  
  def setglyph(self, glyph):
    self.glyph = glyph
    self.SetPort()
    self.draw()
    
  def draw(self, visRgn=None):
    # This a HELL of a routine, but it's pretty damn fast...
    import Qd
    if not self._visible:
      return
    Qd.EraseRect(Qd.InsetRect(self._bounds, 1, 1))
    cliprgn = Qd.NewRgn()
    savergn = Qd.NewRgn()
    Qd.RectRgn(cliprgn, self._bounds)
    Qd.GetClip(savergn)
    Qd.SetClip(cliprgn)
    try:
      if self.glyph:
        l, t, r, b = Qd.InsetRect(self._bounds, 1, 1)
        height = b - t
        scale = float(height) / (self.yMax - self.yMin)
        topoffset = t + scale * self.yMax
        width = scale * self.glyph.width
        lsb = scale * self.glyph.lsb
        xMin = scale * self.glyph.xMin
        # XXXX this is not correct when USE_MY_METRICS is set in component!
        leftoffset = l + 0.5 * (r - l - width)
        gleftoffset = leftoffset - xMin + lsb
        if self.showlines:
          Qd.RGBForeColor((0xafff, 0xafff, 0xafff))
          # left sidebearing
          Qd.MoveTo(leftoffset, t)
          Qd.LineTo(leftoffset, b - 1)
          # right sidebearing
          Qd.MoveTo(leftoffset + width, t)
          Qd.LineTo(leftoffset + width, b - 1)
          # baseline
          Qd.MoveTo(l, topoffset)
          Qd.LineTo(r - 1, topoffset)
          
          # origin
          Qd.RGBForeColor((0x5fff, 0, 0))
          Qd.MoveTo(gleftoffset, topoffset - 16)
          Qd.LineTo(gleftoffset, topoffset + 16)
          # reset color
          Qd.RGBForeColor((0, 0, 0))
        
        if self.glyph.iscomposite:
          Qd.RGBForeColor((0x7fff, 0x7fff, 0x7fff))
        
        ATM.startFillATM()
        contours = self.glyph.getcontours((scale, -scale), (gleftoffset, topoffset))
        for contour, flags in contours:
          currentpoint = None
          done_moveto = 0
          i = 0
          nPoints = len(contour)
          while i < nPoints:
            pt = contour[i]
            if flags[i]:
              # onCurve
              currentpoint = lineto(pt, done_moveto)
            else:
              if not currentpoint:
                if not flags[i-1]:
                  currentpoint = 0.5 * (contour[i-1] + pt)
                else:
                  currentpoint = contour[i-1]
              if not flags[(i+1) % nPoints]:
                endPt = 0.5 * (pt + contour[(i+1) % nPoints])
              else:
                endPt = contour[(i+1) % nPoints]
                i = i + 1
              # offCurve
              currentpoint = qcurveto(currentpoint, 
                  pt, endPt, done_moveto)
            done_moveto = 1
            i = i + 1
          ATM.fillClosePathATM()
        ATM.endFillATM()
        # draw point markers
        if self.showpoints:
          for contour, flags in contours:
            Qd.RGBForeColor((0, 0xffff, 0))
            for i in range(len(contour)):
              (x, y) = contour[i]
              onCurve = flags[i] & 0x1
              if onCurve:
                Qd.PaintRect(Qd.InsetRect((x, y, x, y), -2, -2))
              else:
                Qd.PaintOval(Qd.InsetRect((x, y, x, y), -2, -2))
              Qd.RGBForeColor((0xffff, 0, 0))
            Qd.RGBForeColor((0, 0, 0))
      Qd.FrameRect(self._bounds)
    finally:
      Qd.SetClip(savergn)
      Qd.DisposeRgn(cliprgn)
      Qd.DisposeRgn(savergn)


extensions = [".suit", ".xml", ".ttx", ".TTF", ".ttf"]

def putfile(prompt, filename, newextension):
  for ext in extensions:
    if filename[-len(ext):] == ext:
      filename = filename[:-len(ext)] + newextension
      break
  else:
    filename = filename + newextension
  fss, ok = macfs.StandardPutFile(prompt, filename)
  if ok:
    return fss.as_pathname()


def lineto(pt, done_moveto):
  x, y = pt
  if done_moveto:
    ATM.fillLineToATM((x, y))
  else:
    ATM.fillMoveToATM((x, y))
  return pt

def qcurveto(pt0, pt1, pt2, done_moveto):
  if not done_moveto:
    x0, y0 = pt0
    ATM.fillMoveToATM((x0, y0))
  x1a, y1a = pt0 + 0.6666666666667 * (pt1 - pt0)
  x1b, y1b = pt2 + 0.6666666666667 * (pt1 - pt2)
  x2, y2 = pt2
  ATM.fillCurveToATM((x1a, y1a), (x1b, y1b), (x2, y2))
  return pt2


def browseTTFont():
  fss, ok = macfs.StandardGetFile()
  if not ok:
    return
  path = fss.as_pathname()
  indices = macUtils.getSFNTResIndices(path)
  if indices:
    for i in indices:
      TableBrowser(path, res_index=i)
  else:
    TableBrowser(path)


if __name__ == "__main__":
  browseTTFont()

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