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https://github.com/Kozea/WeasyPrint.git
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Merge branch 'master' into test
This commit is contained in:
commit
dafed64645
1
.gitignore
vendored
1
.gitignore
vendored
@ -18,5 +18,6 @@
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/.cache
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# Tests
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/.pytest_cache
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/weasyprint/tests/.cache
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/weasyprint/tests/test_draw/results
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@ -33,17 +33,37 @@ class FontConfiguration:
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"""Add a font into the application."""
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if sys.platform.startswith('win'):
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warnings.warn('@font-face is currently not supported on Windows')
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elif pango.pango_version() < 13800:
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fontconfig = None
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pangoft2 = None
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if pango.pango_version() < 13800:
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warnings.warn('@font-face support needs Pango >= 1.38')
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else:
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try:
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fontconfig = dlopen(ffi, 'fontconfig', 'libfontconfig',
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'libfontconfig-1.dll',
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'libfontconfig.so.1', 'libfontconfig-1.dylib')
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pangoft2 = dlopen(ffi, 'pangoft2-1.0', 'libpangoft2-1.0-0',
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'libpangoft2-1.0.so', 'libpangoft2-1.0.dylib')
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except Exception as err:
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# dont alter behavior on other platforms!
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if not sys.platform.startswith('win'):
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raise err
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else:
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warnings.warn("'@font-face not supported: {0}".format(err))
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fontconfig = None
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pangoft2 = None
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# if both libraries are present: Use them
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if fontconfig and pangoft2:
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ffi.cdef('''
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// FontConfig
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typedef int FcBool;
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typedef struct _FcConfig FcConfig;
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typedef struct _FcPattern FcPattern;
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typedef struct _FcStrList FcStrList;
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typedef unsigned char FcChar8;
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typedef enum {
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@ -55,8 +75,20 @@ else:
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FcMatchPattern, FcMatchFont, FcMatchScan
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} FcMatchKind;
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typedef struct _FcFontSet {
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int nfont;
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int sfont;
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FcPattern **fonts;
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} FcFontSet;
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typedef enum _FcSetName {
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FcSetSystem = 0,
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FcSetApplication = 1
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} FcSetName;
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FcConfig * FcInitLoadConfigAndFonts (void);
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FcPattern * FcConfigDestroy (FcConfig *config);
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void FcConfigDestroy (FcConfig *config);
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FcBool FcConfigAppFontAddFile (
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FcConfig *config, const FcChar8 *file);
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FcConfig * FcConfigGetCurrent (void);
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@ -64,6 +96,10 @@ else:
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FcBool FcConfigParseAndLoad (
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FcConfig *config, const FcChar8 *file, FcBool complain);
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FcFontSet * FcConfigGetFonts(FcConfig *config, FcSetName set);
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FcStrList * FcConfigGetConfigFiles(FcConfig *config);
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FcChar8 * FcStrListNext(FcStrList *list);
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void FcDefaultSubstitute (FcPattern *pattern);
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FcBool FcConfigSubstitute (
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FcConfig *config, FcPattern *p, FcMatchKind kind);
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@ -96,11 +132,6 @@ else:
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cairo_font_type_t fonttype);
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''')
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fontconfig = dlopen(ffi, 'fontconfig', 'libfontconfig',
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'libfontconfig.so.1', 'libfontconfig-1.dylib')
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pangoft2 = dlopen(ffi, 'pangoft2-1.0', 'libpangoft2-1.0-0',
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'libpangoft2-1.0.so', 'libpangoft2-1.0.dylib')
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FONTCONFIG_WEIGHT_CONSTANTS = {
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'normal': 'normal',
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'bold': 'bold',
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@ -133,6 +164,61 @@ else:
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'ultra-expanded': 'ultraexpanded',
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}
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_warned_once = False
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def _warn_once(msg):
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"""don't annoy with warnings, one is enough"""
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global _warned_once
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if not _warned_once:
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warnings.warn(msg)
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_warned_once = True
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def _checkfontconfiguration(font_config):
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"""
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Check whether the given font_config has fonts.
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Maybe that never happens on Nix, but the GTK3 Runtime for Windows,
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https://github.com/tschoonj/
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GTK-for-Windows-Runtime-Environment-Installer
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which is recommended at
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http://weasyprint.readthedocs.io/en/latest/install.html#windows
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comes without fonts.conf in etc/fonts, giving
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"Fontconfig error: Cannot load default config file"
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No default config == No fonts.
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No fonts == expect ugly output.
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If you happen to have an html without a valid @font-face all
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letters turn into rectangles.
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If you happen to have an html with at least one valid @font-face
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all text is styled with that font.
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"""
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# Nobody ever complained about such a situation on Nix...
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# Since I cannot test this on Linux, and dont know whta happens
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# without FontConfig, I leave it as it was before an return True
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if not sys.platform.startswith('win'):
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return True
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fonts = fontconfig.FcConfigGetFonts(
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font_config, fontconfig.FcSetSystem)
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if fonts.nfont > 0:
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return True
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# Is the reason a missing default config file?
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configfiles = fontconfig.FcConfigGetConfigFiles(font_config)
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file = fontconfig.FcStrListNext(configfiles)
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if file == ffi.NULL:
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_warn_once(
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'@font-face not supported: Cannot load default config file')
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else:
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_warn_once('@font-face not supported: no fonts configured')
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# fall back to defaul @font-face-less behaviour
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return False
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# on Windows we could try to add the system fonts like that:
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# fontdir = os.path.join(os.environ['WINDIR'], 'Fonts')
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# fontconfig.FcConfigAppFontAddDir(
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# font_config,
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# # not shure which encoding fontconfig expects
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# fontdir.encode('mbcs'))
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class FontConfiguration(FontConfiguration):
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def __init__(self):
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"""Create a FT2 font configuration.
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@ -142,26 +228,48 @@ else:
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how-to-use-custom-application-fonts.html
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"""
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# load the master config file and the fonts
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self._fontconfig_config = ffi.gc(
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fontconfig.FcInitLoadConfigAndFonts(),
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fontconfig.FcConfigDestroy)
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self.font_map = ffi.gc(
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pangocairo.pango_cairo_font_map_new_for_font_type(
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cairo.FONT_TYPE_FT),
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gobject.g_object_unref)
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pangoft2.pango_fc_font_map_set_config(
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ffi.cast('PangoFcFontMap *', self.font_map),
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self._fontconfig_config)
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# pango_fc_font_map_set_config keeps a reference to config
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fontconfig.FcConfigDestroy(self._fontconfig_config)
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# usable config?
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if not _checkfontconfiguration(self._fontconfig_config):
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self.font_map = None
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else:
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self.font_map = ffi.gc(
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pangocairo.pango_cairo_font_map_new_for_font_type(
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cairo.FONT_TYPE_FT),
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gobject.g_object_unref)
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pangoft2.pango_fc_font_map_set_config(
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ffi.cast('PangoFcFontMap *', self.font_map),
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self._fontconfig_config)
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# pango_fc_font_map_set_config keeps a reference to config
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fontconfig.FcConfigDestroy(self._fontconfig_config)
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# On Windows the font tempfiles cannot be deleted
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# putting them in a subfolder made my life easier.
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self._tempdir = None
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if sys.platform.startswith('win'):
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self._tempdir = os.path.join(
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tempfile.gettempdir(), 'weasyprint')
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try:
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os.mkdir(self._tempdir)
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except FileExistsError:
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pass
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except Exception:
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# back to default
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self._tempdir = None
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self._filenames = []
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def add_font_face(self, rule_descriptors, url_fetcher):
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if self.font_map is None:
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return
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for font_type, url in rule_descriptors['src']:
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if url is None:
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continue
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if font_type in ('external', 'local'):
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config = self._fontconfig_config
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# default: use `url_fetcher` to fetch the font
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fetch_as_url = True
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if font_type == 'local':
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font_name = url.encode('utf-8')
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pattern = ffi.gc(
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@ -193,20 +301,33 @@ else:
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config, pattern, result)
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fontconfig.FcPatternGetString(
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matching_pattern, b'file', 0, filename)
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url = (
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u'file://' +
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ffi.string(filename[0]).decode('utf-8'))
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# cant use urlopen('file://..') on Windows.
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# Fails with
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# URLError: <urlopen error file ot on local host>
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if sys.platform.startswith('win'):
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fetch_as_url = False
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url = (
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ffi.string(filename[0]).decode(
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sys.getfilesystemencoding()))
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else:
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url = (
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u'file://' +
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ffi.string(filename[0]).decode('utf-8'))
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else:
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LOGGER.warning(
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'Failed to load local font "%s"',
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font_name.decode('utf-8'))
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continue
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try:
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with fetch(url_fetcher, url) as result:
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if 'string' in result:
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font = result['string']
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else:
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font = result['file_obj'].read()
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if fetch_as_url:
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with fetch(url_fetcher, url) as result:
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if 'string' in result:
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font = result['string']
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else:
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font = result['file_obj'].read()
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else:
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with open(url, 'rb') as fd:
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font = fd.read()
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except Exception as exc:
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LOGGER.error(
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'Failed to load font at "%s" (%s)', url, exc)
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@ -222,7 +343,7 @@ else:
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**font_features).items():
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features_string += '<string>%s %s</string>' % (
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key, value)
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fd, filename = tempfile.mkstemp()
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fd, filename = tempfile.mkstemp(dir=self._tempdir)
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os.write(fd, font)
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os.close(fd)
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self._filenames.append(filename)
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@ -263,7 +384,7 @@ else:
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FONTCONFIG_STRETCH_CONSTANTS[
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rule_descriptors.get('font_stretch', 'normal')],
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filename, features_string)
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fd, conf_filename = tempfile.mkstemp()
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fd, conf_filename = tempfile.mkstemp(dir=self._tempdir)
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# TODO: is this encoding OK?
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os.write(fd, xml.encode('utf-8'))
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os.close(fd)
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@ -275,6 +396,9 @@ else:
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if font_added:
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# TODO: we should mask local fonts with the same name
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# too as explained in Behdad's blog entry
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# What about pango_fc_font_map_config_changed()
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# as suggested in Behdad's blog entry?
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# Though it seems to work without...
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return filename
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else:
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LOGGER.error('Failed to load font at "%s"', url)
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@ -284,5 +408,14 @@ else:
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def __del__(self):
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"""Clean a font configuration for a document."""
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# Can't cleanup the temporary font files on Windows,
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# library has still open file handles.
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# On Unix `os.remove()` a file that is in use works fine,
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# on Windows a PermissionError is raised.
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# FcConfigAppFontClear() doesn't help
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# pango_fc_font_map_shutdown() doesn't help
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for filename in self._filenames:
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os.remove(filename)
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try:
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os.remove(filename)
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except OSError:
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continue
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@ -22,6 +22,11 @@ if cairo.cairo_version() <= 11400:
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warnings.warn('There are known rendering problems with Cairo <= 1.14.0')
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CAIRO_DUMMY_CONTEXT = {
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True: cairo.Context(cairo.ImageSurface(cairo.FORMAT_ARGB32, 1, 1)),
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False: cairo.Context(cairo.PDFSurface(None, 1, 1))}
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PANGO_ATTR_FONT_FEATURES_CACHE = {}
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@ -623,12 +628,9 @@ class Layout(object):
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def __init__(self, context, font_size, style):
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self.context = context
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hinting = context.enable_hinting if context else False
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cairo_dummy_context = (
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cairo.Context(cairo.ImageSurface(cairo.FORMAT_ARGB32, 1, 1))
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if hinting else cairo.Context(cairo.PDFSurface(None, 1, 1)))
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self.layout = ffi.gc(
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pangocairo.pango_cairo_create_layout(ffi.cast(
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'cairo_t *', cairo_dummy_context._pointer)),
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'cairo_t *', CAIRO_DUMMY_CONTEXT[hinting]._pointer)),
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gobject.g_object_unref)
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pango_context = pango.pango_layout_get_context(self.layout)
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if context and context.font_config.font_map:
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@ -81,13 +81,24 @@ def iri_to_uri(url):
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def path2url(path):
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"""Return file URL of `path`"""
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"""Return file URL of `path`.
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Accepts 'str' or 'bytes', returns 'str'
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"""
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# Ensure 'str'
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if isinstance(path, bytes):
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path = path.decode(sys.getfilesystemencoding())
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# if a trailing path.sep is given -- keep it
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wants_trailing_slash = path.endswith(os.path.sep) or path.endswith('/')
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path = os.path.abspath(path)
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if os.path.isdir(path):
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if wants_trailing_slash or os.path.isdir(path):
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# Make sure directory names have a trailing slash.
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# Otherwise relative URIs are resolved from the parent directory.
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path += os.path.sep
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wants_trailing_slash = True
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path = pathname2url(path)
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# on Windows pathname2url cuts off trailing slash
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if wants_trailing_slash and not path.endswith('/'):
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path += '/'
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if path.startswith('///'):
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# On Windows pathname2url(r'C:\foo') is apparently '///C:/foo'
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# That enough slashes already.
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|
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Block a user