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Deal with the possibility of no valid font being selected at all

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during an entire run of unifontsel (because unifontsel_set_name was
either not called at all, or called with a name that didn't
correspond to any known font). In this situation we grey out the OK
button until a valid font is selected, and we have
unifontsel_get_name return NULL rather than failing an assertion if
it should be called in that state. The current client code in
gtkdlg.c should never encounter a NULL return, since it only calls
it after the OK button is clicked, but I've stuck an assertion in
there too on general principles.

[originally from svn r7953]
This commit is contained in:
Simon Tatham 2008-03-29 14:21:25 +00:00
parent f07f782547
commit ae802c16d8
2 changed files with 7 additions and 1 deletions
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1
unix/gtkdlg.c
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@ -1226,6 +1226,7 @@ static void fontsel_ok(GtkButton *button, gpointer data)
(GTK_OBJECT(button), "user-data");
struct uctrl *uc = (struct uctrl *)fontsel->user_data;
char *name = unifontsel_get_name(fontsel);
assert(name); /* should always be ok after OK pressed */
gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
sfree(name);
}

7
unix/gtkfont.c
View File

@ -1564,6 +1564,8 @@ static void unifontsel_select_font(unifontsel_internal *fs,
if (size_is_explicit)
fs->intendedsize = size;
gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
/*
* Find the index of this fontinfo in the selorder list.
*/
@ -2270,6 +2272,8 @@ unifontsel *unifontsel_new(const char *wintitle)
unifontsel_setup_familylist(fs);
fs->selected = NULL;
fs->selsize = fs->intendedsize = 13; /* random default */
gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
return (unifontsel *)fs;
}
@ -2349,7 +2353,8 @@ char *unifontsel_get_name(unifontsel *fontsel)
unifontsel_internal *fs = (unifontsel_internal *)fontsel;
char *name;
assert(fs->selected);
if (!fs->selected)
return NULL;
if (fs->selected->size == 0) {
name = fs->selected->fontclass->scale_fontname