Made Fl_Quartz_Graphics_Driver::text_extents() resistant to mal-formed UTF-8 text.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8596 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Manolo Gouy 2011-04-17 11:19:41 +00:00
parent ddc4b21b55
commit f8d1e074ed

View File

@ -393,9 +393,10 @@ double Fl_Quartz_Graphics_Driver::width(unsigned int wc) {
void Fl_Quartz_Graphics_Driver::text_extents(const char *str8, int n, int &dx, int &dy, int &w, int &h) {
if (!font_descriptor()) font(FL_HELVETICA, FL_NORMAL_SIZE);
Fl_Font_Descriptor *fl_fontsize = font_descriptor();
UniChar *txt = mac_Utf8_to_Utf16(str8, n, &n);
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
if (fl_mac_os_version >= 100500) {
CFStringRef str16 = CFStringCreateWithBytes(NULL, (const UInt8*)str8, n, kCFStringEncodingUTF8, false);
CFStringRef str16 = CFStringCreateWithCharactersNoCopy(NULL, txt, n, kCFAllocatorNull);
CFDictionarySetValue (attributes, kCTFontAttributeName, fl_fontsize->fontref);
CFAttributedStringRef mastr = CFAttributedStringCreate(kCFAllocatorDefault, str16, attributes);
CFRelease(str16);
@ -429,7 +430,6 @@ else {
iValuePtr = &fl_gc;
ATSUSetLayoutControls(layout, 1, &iTag, &iSize, &iValuePtr);
// now measure the bounding box
UniChar *txt = mac_Utf8_to_Utf16(str8, n, &n);
err = ATSUSetTextPointerLocation(layout, txt, kATSUFromTextBeginning, n, n);
Rect bbox;
err = ATSUMeasureTextImage(layout, kATSUFromTextBeginning, n, 0, 0, &bbox);