2001-01-26 Jon Trowbridge <trow@gnu.org>
* gal/e-text/e-text-model-test.c: Added; a new test program that
demonstrates objects in ETexts.
* gal/e-text/e-text-model-uri.c: Added; a text model that converts
URIs in the text into objects that are passed off to the GNOME URI
handler when activated. This is actually still extremely broken;
I got it just working enough to test out my EText changes.
* gal/e-text/e-text.c: A whole lot of changes, designed to make
ETextModel objects render properly. The basic idea of the changes
is pretty simple, though.
(text_width_with_objects): First of all, this function is an
alternative to e_font_utf8_text_width that takes into the account
the embedded \1s in the text string and properly accounts for the
width of the object strings.
(unicode_strlen_with_objects): Next, this function finds the
proper strlen of a string, expanding the \1s.
(text_draw_with_objects): Finally, this is just a replacement for
e_font_draw_utf8_text that does the right thing for objects. I've
gone through all of e-text.c and replace calls by those original
functions with my new object-enabled alternatives.
(split_into_lines): Some tweaking to get line breaking to work
properly. Made \1 into a "break character", so that we can break
lines between multiple adjacent objects. (Which seemed like the
right thing to do, but there may be cases where that is
undesireable.)
(_get_position_from_xy): Fixed to properly handle embedded
objects, and to get the right selection semantics for objects.
(Or at least semantics that feel right to me.) Also fixed a bug
that caused selection, etc. to not work properly if the text was
anchored anywhere other than with GTK_ANCHOR_NORTH*.
(_get_position): Hacked to cause objects to activate when they are
double-clicked. There is probably a better way to do this.
* gal/e-text/e-text-model.c (e_text_model_real_object_count):
Provide a default implementation of an object counter. Derived
classes might want to override this for efficiency reasons.
(e_text_model_strdup_expanded_text): Added. Allocates and returns
a string contains the model's text with the objects "expanded"
within.
* gal/e-text/e-text-model.h: Added obj_count, get_nth_obj, and
activate_nth_obj virtual methods to ETextModelClass.
svn path=/trunk/; revision=7842
8c1c827496