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libeek: eek_keyboard_find_key_by_position(): consider overlapped sections.

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This commit is contained in:
Daiki Ueno
2010-08-13 11:42:32 +09:00
parent d7cb78ecf5
commit ae9df021c2
1 changed files with 29 additions and 20 deletions
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49
eek/eek-keyboard.c
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@ -485,6 +485,13 @@ eek_keyboard_find_key_by_keycode (EekKeyboard *keyboard,
keycode);
}
struct _FkbpData {
gdouble x;
gdouble y;
EekKey *key;
};
typedef struct _FkbpData FkbpData;
static gint
compare_section_by_position (EekElement *element, gpointer user_data)
{
@ -507,22 +514,22 @@ compare_section_by_position (EekElement *element, gpointer user_data)
return -1;
}
static EekSection *
eek_keyboard_find_section_by_position (EekKeyboard *keyboard,
gdouble x,
gdouble y)
static void
fkbp_foreach_child_callback (EekElement *element,
gpointer user_data)
{
EekBounds bounds;
FkbpData *data = user_data;
EekPoint point;
EekElement *element;
eek_element_get_bounds (EEK_ELEMENT(keyboard), &bounds);
point.x = x - bounds.x;
point.y = y - bounds.y;
element = eek_container_find (EEK_CONTAINER(keyboard),
compare_section_by_position,
&point);
return EEK_SECTION(element);
if (!data->key) {
point.x = data->x;
point.y = data->y;
if (compare_section_by_position (element, &point) == 0) {
data->key = eek_section_find_key_by_position (EEK_SECTION(element),
point.x,
point.y);
}
}
}
EekKey *
@ -530,15 +537,17 @@ eek_keyboard_find_key_by_position (EekKeyboard *keyboard,
gdouble x,
gdouble y)
{
FkbpData data;
EekSection *section;
EekBounds bounds;
section = eek_keyboard_find_section_by_position (keyboard, x, y);
if (!section)
return NULL;
eek_element_get_bounds (EEK_ELEMENT(keyboard), &bounds);
x -= bounds.x;
y -= bounds.y;
return eek_section_find_key_by_position (section, x, y);
data.x = x - bounds.x;
data.y = y - bounds.y;
data.key = NULL;
/* eek_container_find() cannot be used here since sections may overlap. */
eek_container_foreach_child (EEK_CONTAINER(keyboard),
fkbp_foreach_child_callback,
&data);
return data.key;
}