truetype.py @@ -2,6 +2,7 @@ import config import gutil import misc import screenplay +import truetype import util import os.path @@ -19,6 +20,15 @@ class MyListBook(wxListBox): EVT_LISTBOX(self, self.GetId(), self.OnPageChange) + # get a list of all the pages + def GetPages(self): + ret = [] + + for i in range(self.GetCount()): + ret.append(self.GetClientData(i)) + + return ret + def AddPage(self, page, name): self.Append(name, page) @@ -26,8 +36,7 @@ class MyListBook(wxListBox): def GetContainingSize(self): w, h = 0, 0 - for i in range(self.GetCount()): - page = self.GetClientData(i) + for page in self.GetPages(): size = page.GetClientSize() w = max(w, size.width) h = max(h, size.height) @@ -36,12 +45,12 @@ class MyListBook(wxListBox): # set all page sizes def SetPageSizes(self, w, h): - for i in range(self.GetCount()): - self.GetClientData(i).SetClientSizeWH(w, h) + for page in self.GetPages(): + page.SetClientSizeWH(w, h) def OnPageChange(self, event = None): - for i in range(self.GetCount()): - self.GetClientData(i).Hide() + for page in self.GetPages(): + page.Hide() panel = self.GetClientData(self.GetSelection()) @@ -49,7 +58,7 @@ class MyListBook(wxListBox): panel.doForcedUpdate() panel.Show() - + class CfgDlg(wxDialog): def __init__(self, parent, cfg, applyFunc, isGlobal): wxDialog.__init__(self, parent, -1, "", @@ -133,11 +142,19 @@ class CfgDlg(wxDialog): def AddPage(self, classObj, name): p = classObj(self.panel, -1, self.cfg) self.listbook.AddPage(p, name) - + + # check for errors in each panel + def checkForErrors(self): + for panel in self.listbook.GetPages(): + if hasattr(panel, "checkForErrors"): + panel.checkForErrors() + def OnOK(self, event): + self.checkForErrors() self.EndModal(wxID_OK) def OnApply(self, event): + self.checkForErrors() self.applyFunc(self.cfg) def OnCancel(self, event): @@ -1279,10 +1296,9 @@ class PDFFontsPanel(wxPanel): "Leave all the fields empty to use the default PDF Courier\n" "fonts. This is highly recommended.\n" "\n" - "Otherwise, fill in the font name (e.g. CourierNew-Bold) to\n" - "use the specified TrueType font. If you want to embed the\n" - "font in the generated PDF files, fill in the font filename as\n" - "well.\n" + "Otherwise, fill in the font name (e.g. AndaleMono) to use\n" + "the specified TrueType font. If you want to embed the font\n" + "in the generated PDF files, fill in the font filename as well.\n" "\n" "See the manual for the full details.\n")) @@ -1326,6 +1342,14 @@ class PDFFontsPanel(wxPanel): self.blockEvents = False + # check that all embedded TrueType fonts are OK + def checkForErrors(self): + for pfi in self.cfg.getPDFFontIds(): + pf = self.cfg.getPDFFont(pfi) + + if pf.filename: + self.getFontPostscriptName(pf.filename) + def addEntry(self, name, descr, parent, sizer): sizer.Add(wxStaticText(parent, -1, descr), 0, wxALIGN_CENTER_VERTICAL) @@ -1361,13 +1385,12 @@ class PDFFontsPanel(wxPanel): if dlg.ShowModal() == wxID_OK: self.fileEntry.SetValue(dlg.GetPath()) self.fileEntry.SetInsertionPointEnd() - - self.lastDir = os.path.dirname(misc.fromGUIUnicode(dlg.GetPath())) - # FIXME: read font name from font file and fill in - # self.pf.pdfName. also warn if font has flags to disallow - # embedding and/or printing. - + fname = misc.fromGUIUnicode(dlg.GetPath()) + + self.nameEntry.SetValue(self.getFontPostscriptName(fname)) + self.lastDir = os.path.dirname(fname) + dlg.Destroy() def OnTypeCombo(self, event = None): @@ -1382,3 +1405,34 @@ class PDFFontsPanel(wxPanel): self.nameEntry.SetValue(self.pf.pdfName) self.fileEntry.SetValue(misc.toGUIUnicode(self.pf.filename)) self.fileEntry.SetInsertionPointEnd() + + # read TrueType font from given file and return its Postscript name, + # or "" on errors. + def getFontPostscriptName(self, filename): + # we load at most 10 MB to avoid a denial-of-service attack by + # passing around scripts containing references to fonts with + # filenames like "/dev/zero" etc. no real font that I know of is + # this big so it shouldn't hurt. + fontProgram = util.loadFile(filename, cfgFrame, 10 * 1024 * 1024) + + if fontProgram is None: + return "" + + f = truetype.Font(fontProgram) + + if not f.isOK(): + wxMessageBox("File '%s'\n" + "does not appear to be a valid TrueType font." + % misc.toGUIUnicode(filename), + "Error", wxOK, cfgFrame) + + return "" + + if not f.allowsEmbedding(): + wxMessageBox("Font '%s'\n" + "does not allow embedding in its license terms.\n" + "You may encounter problems using this font" + " embedded." % misc.toGUIUnicode(filename), + "Error", wxOK, cfgFrame) + + return f.getPostscriptName() cfgdlg.py 9dcfcabacfd17f886a8975b49cdb24949194da8e Osku Salerma osku@iki.fi http://github.com/oskusalerma/blyte/commit/d2200868155a2cdae8427f59dc8f5f29fcf0f6e4 d2200868155a2cdae8427f59dc8f5f29fcf0f6e4 2006-04-03T09:31:34-07:00 2006-04-03T09:31:34-07:00 Add TrueType font parser and use it to get the Postscript font name from user-specified font files, and also warn if the font file's license disallows embedding the font. 9e036f8927e3b7763fde2210272988e9185205c3 Osku Salerma osku@iki.fi