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libeek: make EekGtkKeyboard handle button events

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This commit is contained in:
Daiki Ueno
2010-06-16 18:27:43 +09:00
parent 1bcb2cc31d
commit 353c99e700
3 changed files with 89 additions and 3 deletions
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87
eek/eek-gtk-keyboard.c
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@ -234,6 +234,84 @@ on_gtk_expose_event (GtkWidget *widget,
return TRUE;
}
struct _FkbeCallbackData
{
EekKey *key;
gint x, y;
};
typedef struct _FkbeCallbackData FkbeCallbackData;
static gint
compare_element_by_location (EekElement *element, gpointer user_data)
{
EekBounds bounds;
FkbeCallbackData *data = user_data;
eek_element_get_bounds (element, &bounds);
if (bounds.x <= data->x && bounds.y <= data->y &&
data->x <= (bounds.x + bounds.width) &&
data->y <= (bounds.y + bounds.height))
return 0;
return -1;
}
static EekKey *
find_key_by_location (EekKeyboard *keyboard, gint x, gint y)
{
EekBounds bounds;
FkbeCallbackData data;
EekElement *element;
eek_element_get_bounds (EEK_ELEMENT(keyboard), &bounds);
data.x = x - bounds.x;
data.y = y - bounds.y;
element = eek_container_find (EEK_CONTAINER(keyboard),
compare_element_by_location,
&data);
if (element) {
eek_element_get_bounds (element, &bounds);
data.x -= bounds.x;
data.y -= bounds.y;
element = eek_container_find (EEK_CONTAINER(element),
compare_element_by_location,
&data);
return EEK_KEY(element);
}
return NULL;
}
static gboolean
on_gtk_button_press_event (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
EekKeyboard *keyboard = user_data;
EekKey *key;
key = find_key_by_location (keyboard, event->x, event->y);
if (key) {
g_signal_emit_by_name (keyboard, "key-pressed", key);
return TRUE;
}
return FALSE;
}
static gboolean
on_gtk_button_release_event (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
EekKeyboard *keyboard = user_data;
EekKey *key;
key = find_key_by_location (keyboard, event->x, event->y);
if (key) {
g_signal_emit_by_name (keyboard, "key-released", key);
return TRUE;
}
return FALSE;
}
GtkWidget *
eek_gtk_keyboard_get_widget (EekGtkKeyboard *keyboard)
{
@ -243,8 +321,17 @@ eek_gtk_keyboard_get_widget (EekGtkKeyboard *keyboard)
if (!priv->widget) {
priv->widget = gtk_drawing_area_new ();
g_object_ref_sink (priv->widget);
gtk_widget_set_events (priv->widget,
GDK_EXPOSURE_MASK |
GDK_KEY_PRESS_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK);
g_signal_connect (priv->widget, "expose_event",
G_CALLBACK (on_gtk_expose_event), keyboard);
g_signal_connect (priv->widget, "button-press-event",
G_CALLBACK (on_gtk_button_press_event), keyboard);
g_signal_connect (priv->widget, "button-release-event",
G_CALLBACK (on_gtk_button_release_event), keyboard);
eek_keyboard_realize (EEK_KEYBOARD(keyboard));
}
return priv->widget;