2001-02-19 Jon Trowbridge <trow@ximian.com>
* gal/e-text/e-entry.c (e_entry_enable_completion_full): Added.
Allows you to attach an ECompletion to an EEntry, and have that
ECompletion be used for (obviously enough) completions.
* gal/e-text/e-completion-view.h, gal/e-text/e-completion-view.c:
Added. ECompletionView is a widget for displaying the results of
a completion request in a format that is appropriate for a
drop-down window.
* gal/e-text/e-completion.h, gal/e-text/e-completion.c: Added.
ECompletion is a "pure virtual base class" for completion-type
operations. It is implemented so that completions can be either
synchronous or asynchronous.
* gal/e-text/e-text.c: Lots of changes to accomodate the
ETextModel changes. First of all, we render embedded text objects
as being underlined. We also cause the model to emit the
appropriate object activation signal when an embedded object is
double-clicked. Also, all of the code that moves the cursor in
response to user input has been removed. Instead, the EText now
listens for "reposition" events from the underlying model, and
bases all cursor motions on those.
(get_bounds_item_relative): Fixed bug in the handling of
differently-anchored text. Being differently-anchored is not a
crime or a perversion --- it is an alternative lifestyle that we
have to respect.
* gal/e-text/e-text-model-uri.h, gal/e-text/e-text-model-uri.c: A
sample ETextModel that converts URIs into embedded objects that
get opened in the browser when you double-click them.
* gal/e-text/e-text-model-repos.h,
gal/e-text/e-text-model-repos.c: Added. A group of simple
structures & functions for handling various cursor movement rules.
These are the sorts of things that are passed as arguments to
ETextModel "reposition" event handlers.
* gal/e-text/e-text-model.h, gal/e-text/e-text-model.c: Privitized
the ETextModel struct and "methodized" all of the operations, so
that derived classes can do arbitrarily respond to get/set
requests in arbitrarily strange ways. Also added the concept of
declaring regions of the text as "embedded text objects".
Finally, caused operations that change the text to emit a
"reposition" signal that passes information that can be used by a
view (like an EText) to move the cursor or selection in an
intelligent way in response to those changes. This means that you
can now open two ETexts that look at the same ETextModel, and have
the cursor in one do the right thing when you edit the other. (As
opposed to producing a lot of potential segfaults, as it was
before.)
svn path=/trunk/; revision=8280
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
