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GtkTextBuffer: Add accessible api

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These functions match closely to the AtkText interface;
they will be used in the GtkTextView accessible implementation.
Keep them private for now.
This commit is contained in:
Matthias Clasen
2011-06-27 00:51:03 -04:00
parent d15319b717
commit aa291863bb
2 changed files with 315 additions and 0 deletions
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299
gtk/gtktextbuffer.c
View File

@ -4448,3 +4448,302 @@ _gtk_text_buffer_spew (GtkTextBuffer *buffer)
{ {
_gtk_text_btree_spew (get_btree (buffer)); _gtk_text_btree_spew (get_btree (buffer));
} }
void
_gtk_text_buffer_get_text_before (GtkTextBuffer *buffer,
AtkTextBoundary boundary_type,
GtkTextIter *position,
GtkTextIter *start,
GtkTextIter *end)
{
gint line_number;
*start = *position;
*end = *start;
switch (boundary_type)
{
case ATK_TEXT_BOUNDARY_CHAR:
gtk_text_iter_backward_char (start);
break;
case ATK_TEXT_BOUNDARY_WORD_START:
if (!gtk_text_iter_starts_word (start))
gtk_text_iter_backward_word_start (start);
*end = *start;
gtk_text_iter_backward_word_start (start);
break;
case ATK_TEXT_BOUNDARY_WORD_END:
if (gtk_text_iter_inside_word (start) &&
!gtk_text_iter_starts_word (start))
gtk_text_iter_backward_word_start (start);
while (!gtk_text_iter_ends_word (start))
{
if (!gtk_text_iter_backward_char (start))
break;
}
*end = *start;
gtk_text_iter_backward_word_start (start);
while (!gtk_text_iter_ends_word (start))
{
if (!gtk_text_iter_backward_char (start))
break;
}
break;
case ATK_TEXT_BOUNDARY_SENTENCE_START:
if (!gtk_text_iter_starts_sentence (start))
gtk_text_iter_backward_sentence_start (start);
*end = *start;
gtk_text_iter_backward_sentence_start (start);
break;
case ATK_TEXT_BOUNDARY_SENTENCE_END:
if (gtk_text_iter_inside_sentence (start) &&
!gtk_text_iter_starts_sentence (start))
gtk_text_iter_backward_sentence_start (start);
while (!gtk_text_iter_ends_sentence (start))
{
if (!gtk_text_iter_backward_char (start))
break;
}
*end = *start;
gtk_text_iter_backward_sentence_start (start);
while (!gtk_text_iter_ends_sentence (start))
{
if (!gtk_text_iter_backward_char (start))
break;
}
break;
case ATK_TEXT_BOUNDARY_LINE_START:
line_number = gtk_text_iter_get_line (start);
if (line_number == 0)
{
gtk_text_buffer_get_iter_at_offset (buffer, start, 0);
}
else
{
gtk_text_iter_backward_line (start);
gtk_text_iter_forward_line (start);
}
*end = *start;
gtk_text_iter_backward_line (start);
break;
case ATK_TEXT_BOUNDARY_LINE_END:
line_number = gtk_text_iter_get_line (start);
if (line_number == 0)
{
gtk_text_buffer_get_iter_at_offset (buffer, start, 0);
*end = *start;
}
else
{
gtk_text_iter_backward_line (start);
*end = *start;
while (!gtk_text_iter_ends_line (start))
{
if (!gtk_text_iter_backward_char (start))
break;
}
gtk_text_iter_forward_to_line_end (end);
}
break;
}
}
void
_gtk_text_buffer_get_text_at (GtkTextBuffer *buffer,
AtkTextBoundary boundary_type,
GtkTextIter *position,
GtkTextIter *start,
GtkTextIter *end)
{
gint line_number;
*start = *position;
*end = *start;
switch (boundary_type)
{
case ATK_TEXT_BOUNDARY_CHAR:
gtk_text_iter_forward_char (end);
break;
case ATK_TEXT_BOUNDARY_WORD_START:
if (!gtk_text_iter_starts_word (start))
gtk_text_iter_backward_word_start (start);
if (gtk_text_iter_inside_word (end))
gtk_text_iter_forward_word_end (end);
while (!gtk_text_iter_starts_word (end))
{
if (!gtk_text_iter_forward_char (end))
break;
}
break;
case ATK_TEXT_BOUNDARY_WORD_END:
if (gtk_text_iter_inside_word (start) &&
!gtk_text_iter_starts_word (start))
gtk_text_iter_backward_word_start (start);
while (!gtk_text_iter_ends_word (start))
{
if (!gtk_text_iter_backward_char (start))
break;
}
gtk_text_iter_forward_word_end (end);
break;
case ATK_TEXT_BOUNDARY_SENTENCE_START:
if (!gtk_text_iter_starts_sentence (start))
gtk_text_iter_backward_sentence_start (start);
if (gtk_text_iter_inside_sentence (end))
gtk_text_iter_forward_sentence_end (end);
while (!gtk_text_iter_starts_sentence (end))
{
if (!gtk_text_iter_forward_char (end))
break;
}
break;
case ATK_TEXT_BOUNDARY_SENTENCE_END:
if (gtk_text_iter_inside_sentence (start) &&
!gtk_text_iter_starts_sentence (start))
gtk_text_iter_backward_sentence_start (start);
while (!gtk_text_iter_ends_sentence (start))
{
if (!gtk_text_iter_backward_char (start))
break;
}
gtk_text_iter_forward_sentence_end (end);
break;
case ATK_TEXT_BOUNDARY_LINE_START:
line_number = gtk_text_iter_get_line (start);
if (line_number == 0)
{
gtk_text_buffer_get_iter_at_offset (buffer, start, 0);
}
else
{
gtk_text_iter_backward_line (start);
gtk_text_iter_forward_line (start);
}
gtk_text_iter_forward_line (end);
break;
case ATK_TEXT_BOUNDARY_LINE_END:
line_number = gtk_text_iter_get_line (start);
if (line_number == 0)
{
gtk_text_buffer_get_iter_at_offset (buffer, start, 0);
}
else
{
gtk_text_iter_backward_line (start);
gtk_text_iter_forward_line (start);
}
while (!gtk_text_iter_ends_line (start))
{
if (!gtk_text_iter_backward_char (start))
break;
}
gtk_text_iter_forward_to_line_end (end);
break;
}
}
void
_gtk_text_buffer_get_text_after (GtkTextBuffer *buffer,
AtkTextBoundary boundary_type,
GtkTextIter *position,
GtkTextIter *start,
GtkTextIter *end)
{
*start = *position;
*end = *start;
switch (boundary_type)
{
case ATK_TEXT_BOUNDARY_CHAR:
gtk_text_iter_forward_char (start);
gtk_text_iter_forward_chars (end, 2);
break;
case ATK_TEXT_BOUNDARY_WORD_START:
if (gtk_text_iter_inside_word (end))
gtk_text_iter_forward_word_end (end);
while (!gtk_text_iter_starts_word (end))
{
if (!gtk_text_iter_forward_char (end))
break;
}
*start = *end;
if (!gtk_text_iter_is_end (end))
{
gtk_text_iter_forward_word_end (end);
while (!gtk_text_iter_starts_word (end))
{
if (!gtk_text_iter_forward_char (end))
break;
}
}
break;
case ATK_TEXT_BOUNDARY_WORD_END:
gtk_text_iter_forward_word_end (end);
*start = *end;
if (!gtk_text_iter_is_end (end))
gtk_text_iter_forward_word_end (end);
break;
case ATK_TEXT_BOUNDARY_SENTENCE_START:
if (gtk_text_iter_inside_sentence (end))
gtk_text_iter_forward_sentence_end (end);
while (!gtk_text_iter_starts_sentence (end))
{
if (!gtk_text_iter_forward_char (end))
break;
}
*start = *end;
if (!gtk_text_iter_is_end (end))
{
gtk_text_iter_forward_sentence_end (end);
while (!gtk_text_iter_starts_sentence (end))
{
if (!gtk_text_iter_forward_char (end))
break;
}
}
break;
case ATK_TEXT_BOUNDARY_SENTENCE_END:
gtk_text_iter_forward_sentence_end (end);
*start = *end;
if (!gtk_text_iter_is_end (end))
gtk_text_iter_forward_sentence_end (end);
break;
case ATK_TEXT_BOUNDARY_LINE_START:
gtk_text_iter_forward_line (end);
*start = *end;
gtk_text_iter_forward_line (end);
break;
case ATK_TEXT_BOUNDARY_LINE_END:
gtk_text_iter_forward_line (start);
*end = *start;
if (!gtk_text_iter_is_end (start))
{
while (!gtk_text_iter_ends_line (start))
{
if (!gtk_text_iter_backward_char (start))
break;
}
gtk_text_iter_forward_to_line_end (end);
}
break;
}
}

16
gtk/gtktextbuffer.h
View File

@ -389,6 +389,22 @@ const PangoLogAttr* _gtk_text_buffer_get_line_log_attrs (GtkTextBuffer *buff
void _gtk_text_buffer_notify_will_remove_tag (GtkTextBuffer *buffer, void _gtk_text_buffer_notify_will_remove_tag (GtkTextBuffer *buffer,
GtkTextTag *tag); GtkTextTag *tag);
void _gtk_text_buffer_get_text_before (GtkTextBuffer *buffer,
AtkTextBoundary boundary_type,
GtkTextIter *position,
GtkTextIter *start,
GtkTextIter *end);
void _gtk_text_buffer_get_text_at (GtkTextBuffer *buffer,
AtkTextBoundary boundary_type,
GtkTextIter *position,
GtkTextIter *start,
GtkTextIter *end);
void _gtk_text_buffer_get_text_after (GtkTextBuffer *buffer,
AtkTextBoundary boundary_type,
GtkTextIter *position,
GtkTextIter *start,
GtkTextIter *end);
G_END_DECLS G_END_DECLS
#endif #endif