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To fix the crash reported by Corvid in STR #2550: crash if fl_text_extent is called without a font.

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git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8403 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Manolo Gouy 2011-02-08 18:12:09 +00:00
parent 9f00704be8
commit b667f4664f
1 changed files with 7 additions and 7 deletions
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14
src/fl_font_xft.cxx
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@ -384,17 +384,17 @@ static void utf8extents(const char *str, int n, XGlyphInfo *extents)
}
int fl_height() {
if (current_font) return current_font->ascent + current_font->descent;
if (fl_graphics_driver->font_descriptor()) return current_font->ascent + current_font->descent;
else return -1;
}
int fl_descent() {
if (current_font) return current_font->descent;
if (fl_graphics_driver->font_descriptor()) return current_font->descent;
else return -1;
}
double fl_width(const char *str, int n) {
if (!current_font) return -1.0;
if (!fl_graphics_driver->font_descriptor()) return -1.0;
XGlyphInfo i;
utf8extents(str, n, &i);
return i.xOff;
@ -405,7 +405,7 @@ double fl_width(uchar c) {
}
double fl_width(FcChar32 *str, int n) {
if (!current_font) return -1.0;
if (!fl_graphics_driver->font_descriptor()) return -1.0;
XGlyphInfo i;
XftTextExtents32(fl_display, current_font, str, n, &i);
return i.xOff;
@ -416,7 +416,7 @@ double fl_width(unsigned int c) {
}
void fl_text_extents(const char *c, int n, int &dx, int &dy, int &w, int &h) {
if (!current_font) {
if (!fl_graphics_driver->font_descriptor()) {
w = h = 0;
dx = dy = 0;
return;
@ -579,8 +579,8 @@ void fl_destroy_xft_draw(Window id) {
}
void Fl_Xlib_Graphics_Driver::draw(const char *str, int n, int x, int y) {
if ( !current_font ) {
fl_font(FL_HELVETICA, 14);
if ( !fl_graphics_driver->font_descriptor() ) {
fl_font(FL_HELVETICA, FL_NORMAL_SIZE);
}
#if USE_OVERLAY
XftDraw*& draw_ = fl_overlay ? draw_overlay : ::draw_;