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comparison src/window.c @ 3676:3ef0aaf3dc34

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[xemacs-hg @ 2006-11-12 13:40:04 by aidan] Prevent a crash if the ASCII charset registries match nothing.
author aidan
date Sun, 12 Nov 2006 13:40:09 +0000
parents 4d52aea479a2
children 719ceea8b3cb
comparison
equal deleted inserted replaced
3675:0492077a2e85 3676:3ef0aaf3dc34
4248 static int 4248 static int
4249 window_pixel_width_to_char_width (struct window *w, int pixel_width, 4249 window_pixel_width_to_char_width (struct window *w, int pixel_width,
4250 int include_margins_p) 4250 int include_margins_p)
4251 { 4251 {
4252 int avail_width; 4252 int avail_width;
4253 int char_width; 4253 int char_width = 0;
4254 int defheight, defwidth; 4254 int defheight, defwidth;
4255 Lisp_Object window = wrap_window (w); 4255 Lisp_Object window = wrap_window (w);
4256 4256
4257 4257
4258 avail_width = (pixel_width - 4258 avail_width = (pixel_width -
4261 (include_margins_p ? 0 : window_left_margin_width (w)) - 4261 (include_margins_p ? 0 : window_left_margin_width (w)) -
4262 (include_margins_p ? 0 : window_right_margin_width (w))); 4262 (include_margins_p ? 0 : window_right_margin_width (w)));
4263 4263
4264 default_face_height_and_width (window, &defheight, &defwidth); 4264 default_face_height_and_width (window, &defheight, &defwidth);
4265 4265
4266 char_width = (avail_width / defwidth); 4266 if (defwidth)
4267 char_width = (avail_width / defwidth);
4267 4268
4268 /* It's the calling function's responsibility to check these values 4269 /* It's the calling function's responsibility to check these values
4269 and make sure they're not out of range. 4270 and make sure they're not out of range.
4270 4271
4271 #### We need to go through the calling functions and actually 4272 #### We need to go through the calling functions and actually