diff options
Diffstat (limited to 'unix/tkUnixRFont.c')
| -rw-r--r-- | unix/tkUnixRFont.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/unix/tkUnixRFont.c b/unix/tkUnixRFont.c index cfb7123..a9c75ed 100644 --- a/unix/tkUnixRFont.c +++ b/unix/tkUnixRFont.c @@ -255,6 +255,23 @@ GetTkFontMetrics( *--------------------------------------------------------------------------- */ +static void +FinishedWithFont( + UnixFtFont *fontPtr); + +static int +InitFontErrorProc( + ClientData clientData, + XErrorEvent *errorPtr) +{ + int *errorFlagPtr = (int *) clientData; + + if (errorFlagPtr != NULL) { + *errorFlagPtr = 1; + } + return 0; +} + static UnixFtFont * InitFont( Tk_Window tkwin, @@ -265,7 +282,8 @@ InitFont( FcCharSet *charset; FcResult result; XftFont *ftFont; - int i, iWidth; + int i, iWidth, errorFlag; + Tk_ErrorHandler handler; if (!fontPtr) { fontPtr = ckalloc(sizeof(UnixFtFont)); @@ -318,8 +336,17 @@ InitFont( ftFont = GetFont(fontPtr, 0, 0.0); fontPtr->font.fid = XLoadFont(Tk_Display(tkwin), "fixed"); + handler = Tk_CreateErrorHandler(Tk_Display(tkwin), + -1, -1, -1, InitFontErrorProc, (ClientData) &errorFlag); + errorFlag = 0; GetTkFontAttributes(ftFont, &fontPtr->font.fa); GetTkFontMetrics(ftFont, &fontPtr->font.fm); + Tk_DeleteErrorHandler(handler); + if (errorFlag) { + FinishedWithFont(fontPtr); + ckfree(fontPtr); + return NULL; + } /* * Fontconfig can't report any information about the position or thickness @@ -344,7 +371,16 @@ InitFont( TkFont *fPtr = &fontPtr->font; fPtr->underlinePos = fPtr->fm.descent / 2; + handler = Tk_CreateErrorHandler(Tk_Display(tkwin), + -1, -1, -1, InitFontErrorProc, (ClientData) &errorFlag); + errorFlag = 0; Tk_MeasureChars((Tk_Font) fPtr, "I", 1, -1, 0, &iWidth); + Tk_DeleteErrorHandler(handler); + if (errorFlag) { + FinishedWithFont(fontPtr); + ckfree(fontPtr); + return NULL; + } fPtr->underlineHeight = iWidth / 3; if (fPtr->underlineHeight == 0) { fPtr->underlineHeight = 1; |