browserHelpers.py 文件源码

def init_font_matplotlib_qt(self):
        ''' Initialize font name list QFontComboBox.
        Also adds font from matplotlib default fonts
        '''
        # Font database of qt
        self.qtFontDatabase = QFontDatabase()

        # Getting path of matplotlib ttf directory
        mplDataPath = mpl.rcParams['datapath']
        mplFontPath = os.path.join(mplDataPath, 'fonts')
        mplTtfFontPath = os.path.join(mplFontPath, 'ttf')

        # Building ttf files list
        mplTtfList = []
        for f in os.listdir(mplTtfFontPath):
            if f.endswith('.ttf'):
                mplTtfList.append(os.path.join(mplTtfFontPath, f))

        # Getting name of each font from ttf files
        mplFontNameList = [mplFontManager.FontProperties(fname=fname).get_name() for fname in mplTtfList]

        # Getting name of each font from qt font database
        qtFontNameListQtype = self.qtFontDatabase.families()
        qtFontNameList =  [ str(qtFont) for qtFont in qtFontNameListQtype ]

        # Comparing and adding matplotlib font to qt font database
        for i in range(len(mplFontNameList)):
            matched = False
            for qtFont in qtFontNameList:
                if str(qtFont) == mplFontNameList[i]:
                    matched = True

            if not matched:
                self.qtFontDatabase.addApplicationFont(mplTtfList[i])