static void
linkify_cb (GtkTextBuffer *buf, GRegex *regex)
{
gchar *text;
GtkTextIter start, end;
GMatchInfo *match;
gtk_text_buffer_get_bounds (buf, &start, &end);
text = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
gtk_text_buffer_remove_all_tags (buf, &start, &end);
if (g_regex_match (regex, text, G_REGEX_MATCH_NOTEMPTY, &match))
{
do
{
gint sp, ep, spos, epos;
g_match_info_fetch_pos (match, 0, &sp, &ep);
/* positions are in bytes, not character, so here we must normalize it*/
spos = g_utf8_pointer_to_offset (text, text + sp);
epos = g_utf8_pointer_to_offset (text, text + ep);
gtk_text_buffer_get_iter_at_offset (buf, &start, spos);
gtk_text_buffer_get_iter_at_offset (buf, &end, epos);
gtk_text_buffer_apply_tag (buf, tag, &start, &end);
}
while (g_match_info_next (match, NULL));
}
g_match_info_free (match);
g_free(text);
}
static gboolean
complete_suggest(GntEntry *entry, const char *text)
{
int offstart = 0, offend = 0;
if (entry->word) {
char *s = get_beginning_of_word(entry);
const char *iter = text;
offstart = g_utf8_pointer_to_offset(entry->start, s);
while (*iter && toupper(*s) == toupper(*iter)) {
*s++ = *iter++;
}
if (*iter) {
gnt_entry_key_pressed(GNT_WIDGET(entry), iter);
}
offend = g_utf8_pointer_to_offset(entry->start, entry->cursor);
} else {
offstart = 0;
gnt_entry_set_text_internal(entry, text);
offend = g_utf8_strlen(text, -1);
}
g_signal_emit(G_OBJECT(entry), signals[SIG_COMPLETION], 0,
entry->start + offstart, entry->start + offend);
update_kill_ring(entry, ENTRY_JAIL, NULL, 0);
return TRUE;
}
void
_gtk_source_regex_fetch_named_pos (GtkSourceRegex *regex,
const gchar *text,
const gchar *name,
gint *start_pos, /* character offsets */
gint *end_pos) /* character offsets */
{
gint byte_start_pos, byte_end_pos;
g_assert (regex->resolved);
if (!g_match_info_fetch_named_pos (regex->u.regex.match, name, &byte_start_pos, &byte_end_pos))
{
if (start_pos != NULL)
*start_pos = -1;
if (end_pos != NULL)
*end_pos = -1;
}
else
{
if (start_pos != NULL)
*start_pos = g_utf8_pointer_to_offset (text, text + byte_start_pos);
if (end_pos != NULL)
*end_pos = g_utf8_pointer_to_offset (text, text + byte_end_pos);
}
}
/* searching */
static void
do_search (GtkWidget *e, GtkWidget *w)
{
static gchar *text = NULL;
static guint offset;
static GRegex *regex = NULL;
GMatchInfo *match = NULL;
GtkTextIter begin, end;
g_free (pattern);
pattern = g_strdup (gtk_entry_get_text (GTK_ENTRY (e)));
gtk_widget_destroy (w);
gtk_widget_queue_draw (text_view);
if (new_search || gtk_text_buffer_get_modified (text_buffer))
{
/* get the text */
g_free (text);
gtk_text_buffer_get_bounds (text_buffer, &begin, &end);
text = gtk_text_buffer_get_text (text_buffer, &begin, &end, FALSE);
offset = 0;
/* compile new regex */
if (regex)
g_regex_unref (regex);
regex = g_regex_new (pattern, G_REGEX_EXTENDED | G_REGEX_OPTIMIZE, G_REGEX_MATCH_NOTEMPTY, NULL);
new_search = FALSE;
}
/* search and select if found */
if (g_regex_match (regex, text + offset, G_REGEX_MATCH_NOTEMPTY, &match))
{
gint sp, ep, spos, epos;
g_match_info_fetch_pos (match, 0, &sp, &ep);
/* positions are in bytes, not character, so here we must normalize it*/
spos = g_utf8_pointer_to_offset (text, text + sp + offset);
epos = g_utf8_pointer_to_offset (text, text + ep + offset);
gtk_text_buffer_get_iter_at_offset (text_buffer, &begin, spos);
gtk_text_buffer_get_iter_at_offset (text_buffer, &end, epos);
gtk_text_buffer_select_range (text_buffer, &begin, &end);
gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (text_view), &begin, 0, FALSE, 0, 0);
offset += epos;
g_match_info_free (match);
match = NULL;
}
else
new_search = TRUE;
}
/* Splits a line into a set of (word,word_position) tuples. */
static GSList *
tokenize_line (GString * line)
{
GSList * tokens = NULL;
char *utf = (char *) line->str;
GString * word;
gunichar uc;
size_t cur_pos = 0;
size_t start_pos = 0;
word = g_string_new (NULL);
while (cur_pos < line->len && *utf) {
int i;
/* Skip non-word characters. */
cur_pos = g_utf8_pointer_to_offset ((const char*)line->str, utf);
uc = g_utf8_get_char (utf);
while (cur_pos < line->len && *utf && !is_word_char(uc,0)) {
utf = g_utf8_next_char (utf);
uc = g_utf8_get_char (utf);
cur_pos = g_utf8_pointer_to_offset ((const char*)line->str, utf);
}
start_pos = cur_pos;
/* Skip over word. */
while (cur_pos < line->len && *utf && is_word_char(uc,1)) {
g_string_append_unichar (word, uc);
utf = g_utf8_next_char (utf);
uc = g_utf8_get_char (utf);
cur_pos = g_utf8_pointer_to_offset ((const char*)line->str, utf);
}
/* Do not accept one or more ' at the end of the word. */
i = word->len-1;
while ((i >= 0) && (word->str[i] == '\'')) {
g_string_truncate (word, i);
i--;
}
/* Save (word, position) tuple. */
if (word->len) {
tokens = g_slist_append (tokens, g_string_new_len (word->str, word->len));
tokens = g_slist_append (tokens, GINT_TO_POINTER(start_pos));
g_string_truncate (word, 0);
}
}
g_string_free (word, TRUE);
return tokens;
}
/**
* utf8_byteoffset_to_charsoffset_cached:
* @string: the gchar * you want to count
* @byteoffset: glong with the byteoffset you want the charoffset for
*
* this function calculates the UTF-8 character offset in a string for
* a given byte offset
* It uses caching to speedup multiple calls for the same buffer, the cache
* is emptied if you change to another buffer. If you use the same buffer but
* change it inbetween calls, you have to reset it yourself using
* the utf8_offset_cache_reset() function
*
**** the result is undefined if the provided byteoffset is in the middle of a UTF8 character ***
*
* Return value: guint with character offset
**/
guint utf8_byteoffset_to_charsoffset_cached(gchar *string, glong byteoffset) {
guint retval;
gint i = UTF8_OFFSET_CACHE_SIZE-1;
if (byteoffset ==0) return 0;
if (string != utf8_offset_cache.last_buf) {
utf8_offset_cache_reset();
utf8_offset_cache.last_buf = string;
}
#ifdef DEBUG
DEBUG_MSG("utf8_byteoffset_to_charsoffset_cached, string %p has strlen %d, looking for byteoffset %ld, starting in cache at i=%d\n", string, strlen(string),byteoffset,i);
#endif
while (i > 0 && utf8_offset_cache.last_byteoffset[i] > byteoffset) {
i--;
}
if (i > 0) {
if (utf8_offset_cache.last_byteoffset[i] == byteoffset) {
#ifdef DEBUG
DEBUG_MSG("byteoffset %ld is in the cache at i=%d, returning %d\n",byteoffset,i,utf8_offset_cache.last_charoffset[i]);
#endif
return utf8_offset_cache.last_charoffset[i];
}
/* if the byteoffset is in the middle of a multibyte character, this line will fail (but
we are not supposed to get called in the middle of a character)*/
retval = g_utf8_pointer_to_offset(string+utf8_offset_cache.last_byteoffset[i], string+byteoffset)+utf8_offset_cache.last_charoffset[i];
#ifdef UTF8_BYTECHARDEBUG
utf8_offset_cache.numbytes_parsed += (byteoffset - utf8_offset_cache.last_byteoffset[i]);
utf8_offset_cache.numbytes_cached_parsed += (byteoffset - utf8_offset_cache.last_byteoffset[i]);
utf8_offset_cache.numcalls_cached_since_reset++;
#endif
} else {
retval = g_utf8_pointer_to_offset(string, string+byteoffset);
#ifdef UTF8_BYTECHARDEBUG
utf8_offset_cache.numbytes_parsed += byteoffset;
#endif
}
DEBUG_MSG(" and byteoffset %ld has charoffset %d\n",byteoffset,retval);
if (i == (UTF8_OFFSET_CACHE_SIZE-1)) {
/* add this new calculation to the cache */
/* this is a nasty trick to move all guint entries one back in the array, so we can add the new one */
memmove(&utf8_offset_cache.last_byteoffset[0], &utf8_offset_cache.last_byteoffset[1], (UTF8_OFFSET_CACHE_SIZE+UTF8_OFFSET_CACHE_SIZE-1)*sizeof(guint));
utf8_offset_cache.last_byteoffset[UTF8_OFFSET_CACHE_SIZE-1] = byteoffset;
utf8_offset_cache.last_charoffset[UTF8_OFFSET_CACHE_SIZE-1] = retval;
}
#ifdef UTF8_BYTECHARDEBUG
utf8_offset_cache.numcalls_since_reset++;
#endif
return retval;
}
static void
gnt_entry_draw(GntWidget *widget)
{
GntEntry *entry = GNT_ENTRY(widget);
int stop;
gboolean focus;
int curpos;
if ((focus = gnt_widget_has_focus(widget)))
wbkgdset(widget->window, '\0' | gnt_color_pair(GNT_COLOR_TEXT_NORMAL));
else
wbkgdset(widget->window, '\0' | gnt_color_pair(GNT_COLOR_HIGHLIGHT_D));
if (entry->masked)
{
mvwhline(widget->window, 0, 0, gnt_ascii_only() ? '*' : ACS_BULLET,
g_utf8_pointer_to_offset(entry->scroll, entry->end));
}
else
mvwprintw(widget->window, 0, 0, "%s", C_(entry->scroll));
stop = gnt_util_onscreen_width(entry->scroll, entry->end);
if (stop < widget->priv.width)
mvwhline(widget->window, 0, stop, ENTRY_CHAR, widget->priv.width - stop);
curpos = gnt_util_onscreen_width(entry->scroll, entry->cursor);
if (focus)
mvwchgat(widget->window, 0, curpos, 1, A_REVERSE, GNT_COLOR_TEXT_NORMAL, NULL);
wmove(widget->window, 0, curpos);
GNTDEBUG;
}
// move word left
static void textbox_cursor_dec_word ( textbox *tb )
{
// Find word boundaries, with pango_Break?
gchar *n;
gchar *c = g_utf8_offset_to_pointer ( tb->text, tb->cursor );
while ( ( c = g_utf8_prev_char ( c ) ) && c != tb->text ) {
gunichar uc = g_utf8_get_char ( c );
GUnicodeBreakType bt = g_unichar_break_type ( uc );
if ( ( bt == G_UNICODE_BREAK_ALPHABETIC || bt == G_UNICODE_BREAK_HEBREW_LETTER ||
bt == G_UNICODE_BREAK_NUMERIC || bt == G_UNICODE_BREAK_QUOTATION ) ) {
break;
}
}
if ( c != tb->text ) {
while ( ( n = g_utf8_prev_char ( c ) ) ) {
gunichar uc = g_utf8_get_char ( n );
GUnicodeBreakType bt = g_unichar_break_type ( uc );
if ( !( bt == G_UNICODE_BREAK_ALPHABETIC || bt == G_UNICODE_BREAK_HEBREW_LETTER ||
bt == G_UNICODE_BREAK_NUMERIC || bt == G_UNICODE_BREAK_QUOTATION ) ) {
break;
}
c = n;
if ( n == tb->text ) {
break;
}
}
}
int index = g_utf8_pointer_to_offset ( tb->text, c );
textbox_cursor ( tb, index );
}
// Move word right
static void textbox_cursor_inc_word ( textbox *tb )
{
if ( tb->text == NULL ) {
return;
}
// Find word boundaries, with pango_Break?
gchar *c = g_utf8_offset_to_pointer ( tb->text, tb->cursor );
while ( ( c = g_utf8_next_char ( c ) ) ) {
gunichar uc = g_utf8_get_char ( c );
GUnicodeBreakType bt = g_unichar_break_type ( uc );
if ( ( bt == G_UNICODE_BREAK_ALPHABETIC || bt == G_UNICODE_BREAK_HEBREW_LETTER ||
bt == G_UNICODE_BREAK_NUMERIC || bt == G_UNICODE_BREAK_QUOTATION ) ) {
break;
}
}
if ( c == NULL || *c == '\0' ) {
return;
}
while ( ( c = g_utf8_next_char ( c ) ) ) {
gunichar uc = g_utf8_get_char ( c );
GUnicodeBreakType bt = g_unichar_break_type ( uc );
if ( !( bt == G_UNICODE_BREAK_ALPHABETIC || bt == G_UNICODE_BREAK_HEBREW_LETTER ||
bt == G_UNICODE_BREAK_NUMERIC || bt == G_UNICODE_BREAK_QUOTATION ) ) {
break;
}
}
int index = g_utf8_pointer_to_offset ( tb->text, c );
textbox_cursor ( tb, index );
}
int Font::offsetForPositionForComplexText(const TextRun& run, float xFloat, bool includePartialGlyphs) const
{
#if USE(FREETYPE)
if (!primaryFont()->platformData().m_pattern)
return offsetForPositionForSimpleText(run, xFloat, includePartialGlyphs);
#endif
// FIXME: This truncation is not a problem for HTML, but only affects SVG, which passes floating-point numbers
// to Font::offsetForPosition(). Bug http://webkit.org/b/40673 tracks fixing this problem.
int x = static_cast<int>(xFloat);
PangoLayout* layout = getDefaultPangoLayout(run);
setPangoAttributes(this, run, layout);
gchar* utf8 = convertUniCharToUTF8(run.characters(), run.length(), 0, run.length());
pango_layout_set_text(layout, utf8, -1);
int index, trailing;
pango_layout_xy_to_index(layout, x * PANGO_SCALE, 1, &index, &trailing);
glong offset = g_utf8_pointer_to_offset(utf8, utf8 + index);
if (includePartialGlyphs)
offset += trailing;
g_free(utf8);
g_object_unref(layout);
return offset;
}
static void test_utf8 (gconstpointer d)
{
gint num_chars;
const gchar **p;
gint i, j;
const gchar *string = d;
g_assert (g_utf8_validate (string, -1, NULL));
num_chars = g_utf8_strlen (string, -1);
p = (const gchar **) g_malloc (num_chars * sizeof (gchar *));
p[0] = string;
for (i = 1; i < num_chars; i++)
p[i] = g_utf8_next_char (p[i-1]);
for (i = 0; i < num_chars; i++)
for (j = 0; j < num_chars; j++)
{
g_assert (g_utf8_offset_to_pointer (p[i], j - i) == p[j]);
g_assert (g_utf8_pointer_to_offset (p[i], p[j]) == j - i);
}
g_free (p);
}
/**
* g_utf8_offset_to_pointer:
* @str: a UTF-8 encoded string
* @offset: a character offset within @str
*
* Converts from an integer character offset to a pointer to a position
* within the string.
*
* Since 2.10, this function allows to pass a negative @offset to
* step backwards. It is usually worth stepping backwards from the end
* instead of forwards if @offset is in the last fourth of the string,
* since moving forward is about 3 times faster than moving backward.
*
* <note><para>
* This function doesn't abort when reaching the end of @str. Therefore
* you should be sure that @offset is within string boundaries before
* calling that function. Call g_utf8_strlen() when unsure.
*
* This limitation exists as this function is called frequently during
* text rendering and therefore has to be as fast as possible.
* </para></note>
*
* Return value: the resulting pointer
**/
gchar *
g_utf8_offset_to_pointer (const gchar *str,
glong offset)
{
const gchar *s = str;
if (offset > 0)
while (offset--)
s = g_utf8_next_char (s);
else
{
const char *s1;
/* This nice technique for fast backwards stepping
* through a UTF-8 string was dubbed "stutter stepping"
* by its inventor, Larry Ewing.
*/
while (offset)
{
s1 = s;
s += offset;
while ((*s & 0xc0) == 0x80)
s--;
offset += g_utf8_pointer_to_offset (s, s1);
}
}
return (gchar *)s;
}
static gint
gail_label_get_offset_at_point (AtkText *text,
gint x,
gint y,
AtkCoordType coords)
{
GtkWidget *widget;
GtkLabel *label;
const gchar *label_text;
gint index, x_layout, y_layout;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
/* State is defunct */
return -1;
label = GTK_LABEL (widget);
gtk_label_get_layout_offsets (label, &x_layout, &y_layout);
index = gail_misc_get_index_at_point_in_layout (widget,
gtk_label_get_layout (label),
x_layout, y_layout, x, y, coords);
label_text = gtk_label_get_text (label);
if (index == -1)
{
if (coords == ATK_XY_WINDOW || coords == ATK_XY_SCREEN)
return g_utf8_strlen (label_text, -1);
return index;
}
else
return g_utf8_pointer_to_offset (label_text, label_text + index);
}
static gint
go_load_pango_byte_to_char (gchar const *str, gint byte)
{
if (byte >= (gint)strlen (str))
return g_utf8_strlen (str, -1);
return g_utf8_pointer_to_offset (str, g_utf8_prev_char (str + byte + 1));
}
static gint
gail_notebook_page_get_offset_at_point (AtkText *text,
gint x,
gint y,
AtkCoordType coords)
{
GtkWidget *label;
GailNotebookPage *notebook_page;
gint index, x_layout, y_layout;
const gchar *label_text;
notebook_page = GAIL_NOTEBOOK_PAGE (text);
label = get_label_from_notebook_page (notebook_page);
if (!GTK_IS_LABEL(label))
return -1;
gtk_label_get_layout_offsets (GTK_LABEL (label), &x_layout, &y_layout);
index = gail_misc_get_index_at_point_in_layout (label,
gtk_label_get_layout (GTK_LABEL (label)),
x_layout, y_layout, x, y, coords);
label_text = gtk_label_get_text (GTK_LABEL (label));
if (index == -1)
{
if (coords == ATK_XY_WINDOW || coords == ATK_XY_SCREEN)
return g_utf8_strlen (label_text, -1);
return index;
}
else
return g_utf8_pointer_to_offset (label_text, label_text + index);
}
static void buddy_status_changed(PurpleBuddy *buddy, PurpleStatus *old_status, PurpleStatus *status) {
PurplePlugin *prpl;
PurplePluginProtocolInfo *prpl_info = NULL;
char *sip_from = find_sip_user(buddy->name);
int d = hashtable_get_counter(buddy->name);
PurpleStatusPrimitive primitive;
enum purple_publish_basic basic;
enum purple_publish_activity activity;
char *statustext = NULL, *tmp = NULL, *new;
const char *end;
LM_DBG("buddy <%s> has changed status\n", buddy->name);
if ((sip_from) && (d>0)) {
primitive = purple_status_type_get_primitive(purple_status_get_type(status));
primitive_parse(primitive, &basic, &activity);
// char *note = purple_status_get_attr_string(status, "message");
prpl = purple_find_prpl(purple_account_get_protocol_id(buddy->account));
if (prpl != NULL)
prpl_info = PURPLE_PLUGIN_PROTOCOL_INFO(prpl);
if (prpl_info && prpl_info->status_text && buddy->account->gc) {
tmp = prpl_info->status_text(buddy);
if(tmp && !g_utf8_validate(tmp, -1, &end)) {
new = g_strndup(tmp, g_utf8_pointer_to_offset(tmp, end));
g_free(tmp);
tmp = new;
}
static void
thunar_text_renderer_grab_focus (GtkWidget *entry,
ThunarTextRenderer *text_renderer)
{
const gchar *text;
const gchar *dot;
glong offset;
/* determine the text from the entry widget */
text = gtk_entry_get_text (GTK_ENTRY (entry));
/* lookup the last dot in the text */
dot = strrchr (text, '.');
if (G_LIKELY (dot != NULL))
{
/* determine the UTF-8 char offset */
offset = g_utf8_pointer_to_offset (text, dot);
/* select the text prior to the dot */
if (G_LIKELY (offset > 0))
gtk_entry_select_region (GTK_ENTRY (entry), 0, offset);
}
/* disconnect the grab-focus handler, so we change the selection only once */
g_signal_handlers_disconnect_by_func (G_OBJECT (entry), thunar_text_renderer_grab_focus, text_renderer);
}
/* Search regular expression in text, return TRUE and matching part as start and
* end integer position */
static gboolean
search_regex_in_text (const gchar* search_entry, const gchar* editor_text, gboolean search_forward, gint * start_pos, gint * end_pos)
{
GRegex * regex;
GMatchInfo *match_info;
gboolean found;
GError * err = NULL;
regex = g_regex_new (search_entry, 0, 0, &err);
if (err)
{
g_message ("%s",err->message);
g_error_free (err);
g_regex_unref(regex);
return FALSE;
}
found = g_regex_match (regex, editor_text, 0, &match_info);
if (found)
{
if (search_forward)
g_match_info_fetch_pos(match_info, 0, start_pos, end_pos);
else
{
do
{
g_match_info_fetch_pos(match_info, 0, start_pos, end_pos);
}
while (g_match_info_next(match_info, NULL));
}
*start_pos = g_utf8_pointer_to_offset(editor_text, &editor_text[*start_pos]);
*end_pos = g_utf8_pointer_to_offset(editor_text, &editor_text[*end_pos]);
}
if (regex)
g_regex_unref(regex);
if (match_info)
g_match_info_free (match_info);
return found;
}
static gint
gtk_label_accessible_get_offset_at_point (AtkText *atk_text,
gint x,
gint y,
AtkCoordType coords)
{
GtkWidget *widget;
GtkLabel *label;
const gchar *text;
gint index, x_layout, y_layout;
gint x_window, y_window;
gint x_local, y_local;
GdkWindow *window;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_text));
if (widget == NULL)
return -1;
label = GTK_LABEL (widget);
gtk_label_get_layout_offsets (label, &x_layout, &y_layout);
window = gtk_widget_get_window (widget);
gdk_window_get_origin (window, &x_window, &y_window);
x_local = x - x_layout - x_window;
y_local = y - y_layout - y_window;
if (coords == ATK_XY_WINDOW)
{
window = gdk_window_get_toplevel (window);
gdk_window_get_origin (window, &x_window, &y_window);
x_local += x_window;
y_local += y_window;
}
if (!pango_layout_xy_to_index (gtk_label_get_layout (label),
x_local * PANGO_SCALE,
y_local * PANGO_SCALE,
&index, NULL))
{
if (x_local < 0 || y_local < 0)
index = 0;
else
index = -1;
}
if (index != -1)
{
text = gtk_label_get_text (label);
return g_utf8_pointer_to_offset (text, text + index);
}
return -1;
}
static int
string_rindex(struct objlist *obj,N_VALUE *inst,N_VALUE *rval,int argc,char **argv)
{
int pos, size, len;
char *str, *pattern, *ptr, *find;
rval->i = -1;
pattern = (char *) argv[2];
pos = * (int *) argv[3];
if (pattern == NULL || pattern[0] == '\0') {
return 1;
}
if (_getobj(obj, "length", inst, &size)) {
return 2;
}
if (! g_utf8_validate(pattern, -1, NULL)) {
error(obj, ERR_INVALID_UTF8);
return 2;
}
if (pos < 0) {
pos += size;
}
if (pos < 0 || pos >= size) {
return 1;
}
if (_getobj(obj, "@", inst, &str)) {
return 1;
}
if(str == NULL || str[0] == '\0') {
return 1;
}
ptr = g_utf8_offset_to_pointer(str, pos);
len = ptr - str + 1;
if (len < 1) {
return 1;
}
find = g_strrstr_len(str, len, pattern);
if (find == NULL) {
return 1;
}
rval->i = g_utf8_pointer_to_offset(str, find);
return 0;
}
static gint
gail_text_cell_get_offset_at_point (AtkText *text,
gint x,
gint y,
AtkCoordType coords)
{
AtkObject *parent;
GailRendererCell *gail_renderer;
GtkCellRendererText *gtk_renderer;
GtkWidget *widget;
GdkRectangle rendered_rect;
PangoLayout *layout;
gint x_offset, y_offset, index;
if (!GAIL_TEXT_CELL (text)->cell_text)
return -1;
gail_renderer = GAIL_RENDERER_CELL (text);
gtk_renderer = GTK_CELL_RENDERER_TEXT (gail_renderer->renderer);
parent = atk_object_get_parent (ATK_OBJECT (text));
g_return_val_if_fail (gtk_renderer->text, -1);
if (GAIL_IS_CONTAINER_CELL (parent))
parent = atk_object_get_parent (parent);
widget = GTK_ACCESSIBLE (parent)->widget;
g_return_val_if_fail (GAIL_IS_CELL_PARENT (parent), -1);
gail_cell_parent_get_cell_area (GAIL_CELL_PARENT (parent), GAIL_CELL (text),
&rendered_rect);
gtk_cell_renderer_get_size (GTK_CELL_RENDERER (gtk_renderer), widget,
&rendered_rect, &x_offset, &y_offset, NULL, NULL);
layout = create_pango_layout (gtk_renderer, widget);
index = gail_misc_get_index_at_point_in_layout (widget, layout,
x_offset + rendered_rect.x + gail_renderer->renderer->xpad,
y_offset + rendered_rect.y + gail_renderer->renderer->ypad,
x, y, coords);
g_object_unref (layout);
if (index == -1)
{
if (coords == ATK_XY_WINDOW || coords == ATK_XY_SCREEN)
return g_utf8_strlen (gtk_renderer->text, -1);
return index;
}
else
return g_utf8_pointer_to_offset (gtk_renderer->text,
gtk_renderer->text + index);
}
/**
* Retrieve a possible address (or a part) from an entry box. To make life
* easier, we only look at the last valid address component; address
* completion only works at the last string component in the entry box.
*
* \param entry Address entry field.
* \param start_pos Address of start position of address.
* \return Possible address.
*/
static gchar *get_address_from_edit(GtkEntry *entry, gint *start_pos)
{
const gchar *edit_text, *p;
gint cur_pos;
gboolean in_quote = FALSE;
gboolean in_bracket = FALSE;
gchar *str;
edit_text = gtk_entry_get_text(entry);
if (edit_text == NULL) return NULL;
cur_pos = gtk_editable_get_position(GTK_EDITABLE(entry));
/* scan for a separator. doesn't matter if walk points at null byte. */
for (p = g_utf8_offset_to_pointer(edit_text, cur_pos);
p > edit_text;
p = g_utf8_prev_char(p)) {
if (*p == '"') {
in_quote = TRUE;
} else if (!in_quote) {
if (!in_bracket && *p == ',') {
break;
} else if (*p == '<')
in_bracket = TRUE;
else if (*p == '>')
in_bracket = FALSE;
}
}
/* have something valid */
if (g_utf8_strlen(p, -1) == 0)
return NULL;
#define IS_VALID_CHAR(x) \
(g_ascii_isalnum(x) || (x) == '"' || (x) == '<' || (((unsigned char)(x)) > 0x7f))
/* now scan back until we hit a valid character */
for (; *p && !IS_VALID_CHAR(*p); p = g_utf8_next_char(p))
;
#undef IS_VALID_CHAR
if (g_utf8_strlen(p, -1) == 0)
return NULL;
if (start_pos) *start_pos = g_utf8_pointer_to_offset(edit_text, p);
str = g_strdup(p);
return str;
}
static gint
gtk_icon_view_item_accessible_get_offset_at_point (AtkText *text,
gint x,
gint y,
AtkCoordType coord_type)
{
GtkIconViewItemAccessible *item;
gint offset = 0;
#if 0
GtkIconView *icon_view;
const gchar *item_text;
gint index;
gint l_x, l_y;
#endif
item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
if (!GTK_IS_ICON_VIEW (item->widget))
return -1;
if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
return -1;
#if 0
icon_view = GTK_ICON_VIEW (item->widget);
/* FIXME we probably have to use GailTextCell to salvage this */
gtk_icon_view_update_item_text (icon_view, item->item);
atk_component_get_position (ATK_COMPONENT (text), &l_x, &l_y, coord_type);
x -= l_x + item->item->layout_x - item->item->x;
x += ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, icon_view->priv->item_width) - item->item->width) / 2,
y -= l_y + item->item->layout_y - item->item->y;
item_text = pango_layout_get_text (icon_view->priv->layout);
if (!pango_layout_xy_to_index (icon_view->priv->layout,
x * PANGO_SCALE,
y * PANGO_SCALE,
&index, NULL))
{
if (x < 0 || y < 0)
index = 0;
else
index = -1;
}
if (index == -1)
offset = g_utf8_strlen (item_text, -1);
else
offset = g_utf8_pointer_to_offset (item_text, item_text + index);
#endif
return offset;
}
/* Search string in text, return TRUE and matching part as start and
* end integer position */
static gboolean
search_str_in_text (const gchar* search_entry, const gchar* editor_text, gboolean case_sensitive, gint * start_pos, gint * end_pos)
{
gboolean found;
if (strlen (editor_text) >= strlen (search_entry))
{
gchar* selected_text_case;
gchar* search_text_case;
if (case_sensitive)
{
selected_text_case = g_strdup (editor_text);
search_text_case = g_strdup (search_entry);
}
else
{
selected_text_case = g_utf8_casefold (editor_text, strlen (editor_text));
search_text_case = g_utf8_casefold (search_entry, strlen (search_entry));
}
gchar* strstr = g_strstr_len (selected_text_case, -1, search_text_case);
if (strstr)
{
*start_pos = g_utf8_pointer_to_offset(selected_text_case, strstr);
*end_pos = g_utf8_pointer_to_offset(selected_text_case, strstr + strlen (search_entry));
found = TRUE;
}
g_free (selected_text_case);
g_free (search_text_case);
}
return found;
}
static gboolean midorator_entry_key_press_event_cb (MidoratorEntry* e, GdkEventKey* event) {
if ((event->state & GDK_CONTROL_MASK) && event->keyval == GDK_a) {
gtk_editable_set_position(GTK_EDITABLE(e), 0);
} else if ((event->state & GDK_CONTROL_MASK) && event->keyval == GDK_e) {
gtk_editable_set_position(GTK_EDITABLE(e), -1);
} else if ((event->state & GDK_CONTROL_MASK) && event->keyval == GDK_f) {
gtk_editable_set_position(GTK_EDITABLE(e), gtk_editable_get_position(GTK_EDITABLE(e)) + 1);
} else if ((event->state & GDK_CONTROL_MASK) && event->keyval == GDK_b) {
gtk_editable_set_position(GTK_EDITABLE(e), gtk_editable_get_position(GTK_EDITABLE(e)) - 1);
} else if ((event->state & GDK_CONTROL_MASK) && event->keyval == GDK_p) {
gtk_editable_set_position(GTK_EDITABLE(e), 0);
midorator_entry_history_up(e);
} else if ((event->state & GDK_CONTROL_MASK) && event->keyval == GDK_n) {
gtk_editable_set_position(GTK_EDITABLE(e), 0);
midorator_entry_history_down(e);
} else if ((event->state & GDK_CONTROL_MASK) && event->keyval == GDK_w) {
const char *t = gtk_entry_get_text(GTK_ENTRY(e));
int pos = gtk_editable_get_position(GTK_EDITABLE(e));
char *i;
for (i = g_utf8_offset_to_pointer(t, pos) - 1; i >= t && *i == ' '; i--);
for (; i >= t && *i != ' '; i--);
i++;
int newpos = g_utf8_pointer_to_offset(t, i);
gtk_editable_delete_text(GTK_EDITABLE(e), newpos, pos);
gtk_editable_set_position(GTK_EDITABLE(e), newpos);
} else if (event->keyval == GDK_Escape) {
g_signal_emit(e, signals[SIG_CANCEL], 0);
} else if (event->keyval == GDK_Tab) {
midorator_entry_perform_completion(e);
} else if (event->keyval == GDK_Up) {
midorator_entry_history_up(e);
} else if (event->keyval == GDK_Down) {
midorator_entry_history_down(e);
} else if (event->keyval == GDK_Page_Up) {
gtk_editable_set_position(GTK_EDITABLE(e), 0);
midorator_entry_history_up(e);
} else if (event->keyval == GDK_Page_Down) {
gtk_editable_set_position(GTK_EDITABLE(e), 0);
midorator_entry_history_down(e);
} else if (event->keyval == GDK_Return) {
char *t = g_strdup(gtk_entry_get_text(GTK_ENTRY(e)));
g_signal_emit(e, signals[SIG_EXECUTE], 0, t);
midorator_entry_history_add(e, t);
g_free(t);
} else
return false;
return true;
}
/* stolen from gtkfilechooserentry.c */
static gboolean
entry_select_filename_in_focus_cb (GtkWidget * entry, GdkEventFocus * event) {
const gchar *str, *ext;
glong len = -1;
str = gtk_entry_get_text (GTK_ENTRY (entry));
ext = g_strrstr (str, ".");
if (ext)
len = g_utf8_pointer_to_offset (str, ext);
gtk_editable_select_region (GTK_EDITABLE (entry), 0, (gint) len);
(void) event;
return TRUE;
}
int Font::offsetForPositionForComplexText(const TextRun& run, const TextStyle& style, int x, bool includePartialGlyphs) const
{
PangoLayout* layout = getDefaultPangoLayout(run);
setPangoAttributes(this, run, layout, style.rtl());
gchar* utf8 = convertUniCharToUTF8(run.characters(), run.length(), 0, run.length());
pango_layout_set_text(layout, utf8, -1);
int index, trailing;
pango_layout_xy_to_index(layout, x * PANGO_SCALE, 1, &index, &trailing);
glong offset = g_utf8_pointer_to_offset(utf8, utf8 + index);
g_object_unref(layout);
g_free(utf8);
return offset;
}
void gui_entry_insert_text(GUI_ENTRY_REC *entry, const char *str)
{
unichar chr;
int i, len;
const char *ptr;
g_return_if_fail(entry != NULL);
g_return_if_fail(str != NULL);
gui_entry_redraw_from(entry, entry->pos);
if (entry->utf8) {
g_utf8_validate(str, -1, &ptr);
len = g_utf8_pointer_to_offset(str, ptr);
} else if (term_type == TERM_TYPE_BIG5)
len = strlen_big5((const unsigned char *)str);
else
len = strlen(str);
entry_text_grow(entry, len);
/* make space for the string */
g_memmove(entry->text + entry->pos + len, entry->text + entry->pos,
(entry->text_len-entry->pos + 1) * sizeof(unichar));
if (!entry->utf8) {
if (term_type == TERM_TYPE_BIG5) {
chr = entry->text[entry->pos + len];
big5_to_unichars(str, entry->text + entry->pos);
entry->text[entry->pos + len] = chr;
} else {
for (i = 0; i < len; i++)
entry->text[entry->pos + i] = str[i];
}
} else {
ptr = str;
for (i = 0; i < len; i++) {
entry->text[entry->pos + i] = g_utf8_get_char(ptr);
ptr = g_utf8_next_char(ptr);
}
}
entry->text_len += len;
entry->pos += len;
gui_entry_fix_cursor(entry);
gui_entry_draw(entry);
}
/**
* g_utf8_pointer_to_offset:
* @str: a UTF-8 encoded string
* @pos: a pointer to a position within @str
*
* Converts from a pointer to position within a string to a integer
* character offset.
*
* Since 2.10, this function allows @pos to be before @str, and returns
* a negative offset in this case.
*
* Return value: the resulting character offset
**/
glong
g_utf8_pointer_to_offset (const gchar *str,
const gchar *pos)
{
const gchar *s = str;
glong offset = 0;
if (pos < str)
offset = - g_utf8_pointer_to_offset (pos, str);
else
while (s < pos)
{
s = g_utf8_next_char (s);
offset++;
}
return offset;
}
static void
FcitxThaiGetPrevCell(FcitxThai* thai, struct thcell_t* res)
{
th_init_cell(res);
if (is_client_support_surrounding(IBUS_ENGINE(libthai_engine))) {
IBusText* surrounding;
guint cursor_pos;
guint anchor_pos;
const gchar* s;
gchar* tis_text = NULL;
ibus_engine_get_surrounding_text(IBUS_ENGINE(libthai_engine),
&surrounding, &cursor_pos, &anchor_pos);
s = ibus_text_get_text(surrounding);
cursor_pos = g_utf8_offset_to_pointer(s, cursor_pos) - s;
while (*s) {
const gchar* t;
tis_text = g_convert(s, cursor_pos, "TIS-620", "UTF-8",
NULL, NULL, NULL);
if (tis_text)
break;
t = g_utf8_next_char(s);
cursor_pos -= (t - s);
s = t;
}
if (tis_text) {
gint char_index;
char_index = g_utf8_pointer_to_offset(s, s + cursor_pos);
th_prev_cell((thchar_t*) tis_text, char_index, res, TRUE);
g_free(tis_text);
}
} else {
/* retrieve from the fallback buffer */
th_prev_cell(libthai_engine->char_buff, libthai_engine->buff_tail,
res, TRUE);
}
}
