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text: Implement gtk_accessible_text_get_extents

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Using existing infrastructure.
This commit is contained in:
Matthias Clasen 2024-03-10 14:55:15 -04:00
parent b4178870dd
commit 47ec7bc66d
1 changed files with 33 additions and 0 deletions
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33
gtk/gtktext.c
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@ -7555,6 +7555,38 @@ gtk_text_accessible_text_get_default_attributes (GtkAccessibleText *self,
*attribute_values = values;
}
static gboolean
gtk_text_accessible_text_get_extents (GtkAccessibleText *self,
unsigned int start,
unsigned int end,
graphene_rect_t *extents)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (self));
const char *text;
int lx, ly;
int range[2];
cairo_region_t *range_clip;
cairo_rectangle_int_t clip_rect;
layout = gtk_text_get_layout (GTK_TEXT (self));
text = gtk_entry_buffer_get_text (get_buffer (GTK_TEXT (self)));
get_layout_position (GTK_TEXT (self), &lx, &ly);
range[0] = g_utf8_pointer_to_offset (text, text + start);
range[1] = g_utf8_pointer_to_offset (text, text + end);
range_clip = gdk_pango_layout_get_clip_region (layout, lx, ly, range, 1);
cairo_region_get_extents (range_clip, &clip_rect);
cairo_region_destroy (range_clip);
extents->origin.x = clip_rect.x;
extents->origin.y = clip_rect.y;
extents->size.width = clip_rect.width;
extents->size.height = clip_rect.height;
return TRUE;
}
static void
gtk_text_accessible_text_init (GtkAccessibleTextInterface *iface)
{
@ -7564,6 +7596,7 @@ gtk_text_accessible_text_init (GtkAccessibleTextInterface *iface)
iface->get_selection = gtk_text_accessible_text_get_selection;
iface->get_attributes = gtk_text_accessible_text_get_attributes;
iface->get_default_attributes = gtk_text_accessible_text_get_default_attributes;
iface->get_extents = gtk_text_accessible_text_get_extents;
}
/* vim:set foldmethod=marker expandtab: */