static void
message_move_handle(Message *message, Handle *handle,
Point *to, HandleMoveReason reason, ModifierKeys modifiers)
{
Point p1, p2;
Point *endpoints;
assert(message!=NULL);
assert(handle!=NULL);
assert(to!=NULL);
if (handle->id == HANDLE_MOVE_TEXT) {
message->text_pos = *to;
} else {
endpoints = &message->connection.endpoints[0];
p1.x = 0.5*(endpoints[0].x + endpoints[1].x);
p1.y = 0.5*(endpoints[0].y + endpoints[1].y);
connection_move_handle(&message->connection, handle->id, to, reason);
p2.x = 0.5*(endpoints[0].x + endpoints[1].x);
p2.y = 0.5*(endpoints[0].y + endpoints[1].y);
point_sub(&p2, &p1);
point_add(&message->text_pos, &p2);
}
message_update_data(message);
}
static void
message_set_props(Message *message, GPtrArray *props)
{
object_set_props_from_offsets(&message->connection.object,
message_offsets, props);
message_update_data(message);
}
/* creation here */
static DiaObject *
message_create(Point *startpoint,
void *user_data,
Handle **handle1,
Handle **handle2)
{
Message *message;
Connection *conn;
LineBBExtras *extra;
DiaObject *obj;
if (message_font == NULL) {
message_font =
dia_font_new_from_style (DIA_FONT_SANS, MESSAGE_FONTHEIGHT);
}
message = g_malloc0(sizeof(Message));
conn = &message->connection;
conn->endpoints[0] = *startpoint;
conn->endpoints[1] = *startpoint;
conn->endpoints[1].x += 1.5;
obj = &conn->object;
extra = &conn->extra_spacing;
obj->type = &jackson_phenomenon_type;
obj->ops = &message_ops;
connection_init(conn, 3, 0);
message->text = g_strdup("");
message->text_width = 0.0;
message->text_pos.x = 0.5*(conn->endpoints[0].x + conn->endpoints[1].x);
message->text_pos.y = 0.5*(conn->endpoints[0].y + conn->endpoints[1].y);
message->text_handle.id = HANDLE_MOVE_TEXT;
message->text_handle.type = HANDLE_MINOR_CONTROL;
message->text_handle.connect_type = HANDLE_NONCONNECTABLE;
message->text_handle.connected_to = NULL;
obj->handles[2] = &message->text_handle;
extra->start_long = extra->start_trans = extra->end_long = MESSAGE_WIDTH/2.0;
extra->end_trans = MAX(MESSAGE_WIDTH,MESSAGE_ARROWLEN)/2.0;
message_update_data(message);
*handle1 = obj->handles[0];
*handle2 = obj->handles[1];
/* init type */
switch (GPOINTER_TO_INT(user_data)) {
case 1: message->type=MSG_SHARED; break;
case 2: message->type=MSG_REQ; break;
default: message->type=MSG_SHARED; break;
}
if (GPOINTER_TO_INT(user_data)!=0) message->init=-1; else message->init=0;
return &message->connection.object;
}
static void
message_set_props(Message *message, GPtrArray *props)
{
if (message->init==-1) { message->init++; return; }
object_set_props_from_offsets(&message->connection.object,
message_offsets, props);
message_update_data(message);
}
static DiaObject *
message_create(Point *startpoint,
void *user_data,
Handle **handle1,
Handle **handle2)
{
Message *message;
Connection *conn;
LineBBExtras *extra;
DiaObject *obj;
message = g_malloc0(sizeof(Message));
/* old defaults */
message->font_height = 0.8;
message->font =
dia_font_new_from_style (DIA_FONT_SANS, message->font_height);
message->line_width = 0.1;
conn = &message->connection;
conn->endpoints[0] = *startpoint;
conn->endpoints[1] = *startpoint;
conn->endpoints[1].x += 1.5;
obj = &conn->object;
extra = &conn->extra_spacing;
obj->type = &message_type;
obj->ops = &message_ops;
connection_init(conn, 3, 0);
message->text_color = color_black;
message->line_color = attributes_get_foreground();
message->text = g_strdup("");
message->text_width = 0.0;
message->text_pos.x = 0.5*(conn->endpoints[0].x + conn->endpoints[1].x);
message->text_pos.y = 0.5*(conn->endpoints[0].y + conn->endpoints[1].y) + 0.5;
message->text_handle.id = HANDLE_MOVE_TEXT;
message->text_handle.type = HANDLE_MINOR_CONTROL;
message->text_handle.connect_type = HANDLE_NONCONNECTABLE;
message->text_handle.connected_to = NULL;
obj->handles[2] = &message->text_handle;
extra->start_long =
extra->start_trans =
extra->end_long = message->line_width/2.0;
extra->end_trans = MAX(message->line_width,MESSAGE_ARROWLEN)/2.0;
message_update_data(message);
*handle1 = obj->handles[0];
*handle2 = obj->handles[1];
return &message->connection.object;
}
static void
message_set_state(Message *message, MessageState *state)
{
g_free(message->text);
message->text = state->text;
message->type = state->type;
g_free(state);
message_update_data(message);
}
static Object *
message_load(ObjectNode obj_node, int version, const char *filename)
{
Message *message;
AttributeNode attr;
Connection *conn;
Object *obj;
if (message_font == NULL)
message_font = font_getfont("Helvetica");
message = g_malloc(sizeof(Message));
conn = &message->connection;
obj = (Object *) message;
obj->type = &message_type;
obj->ops = &message_ops;
connection_load(conn, obj_node);
connection_init(conn, 3, 0);
message->text = NULL;
attr = object_find_attribute(obj_node, "text");
if (attr != NULL)
message->text = data_string(attribute_first_data(attr));
attr = object_find_attribute(obj_node, "text_pos");
if (attr != NULL)
data_point(attribute_first_data(attr), &message->text_pos);
attr = object_find_attribute(obj_node, "type");
if (attr != NULL)
message->type = (MessageType)data_int(attribute_first_data(attr));
if (message->text)
message->text_width =
font_string_width(message->text, message_font, MESSAGE_FONTHEIGHT);
else
message->text_width = 0;
message->text_handle.id = HANDLE_MOVE_TEXT;
message->text_handle.type = HANDLE_MINOR_CONTROL;
message->text_handle.connect_type = HANDLE_NONCONNECTABLE;
message->text_handle.connected_to = NULL;
obj->handles[2] = &message->text_handle;
message_update_data(message);
return (Object *)message;
}
static Object *
message_create(Point *startpoint,
void *user_data,
Handle **handle1,
Handle **handle2)
{
Message *message;
Connection *conn;
Object *obj;
if (message_font == NULL)
message_font = font_getfont("Helvetica");
message = g_malloc(sizeof(Message));
conn = &message->connection;
conn->endpoints[0] = *startpoint;
conn->endpoints[1] = *startpoint;
conn->endpoints[1].x += 1.5;
obj = (Object *) message;
obj->type = &message_type;
obj->ops = &message_ops;
connection_init(conn, 3, 0);
message->text = NULL;
message->text_width = 0.0;
message->text_pos.x = 0.5*(conn->endpoints[0].x + conn->endpoints[1].x);
message->text_pos.y = 0.5*(conn->endpoints[0].y + conn->endpoints[1].y);
message->text_handle.id = HANDLE_MOVE_TEXT;
message->text_handle.type = HANDLE_MINOR_CONTROL;
message->text_handle.connect_type = HANDLE_NONCONNECTABLE;
message->text_handle.connected_to = NULL;
obj->handles[2] = &message->text_handle;
message_update_data(message);
*handle1 = obj->handles[0];
*handle2 = obj->handles[1];
return (Object *)message;
}
static void
message_move(Message *message, Point *to)
{
Point start_to_end;
Point *endpoints = &message->connection.endpoints[0];
Point delta;
delta = *to;
point_sub(&delta, &endpoints[0]);
start_to_end = endpoints[1];
point_sub(&start_to_end, &endpoints[0]);
endpoints[1] = endpoints[0] = *to;
point_add(&endpoints[1], &start_to_end);
point_add(&message->text_pos, &delta);
message_update_data(message);
}
static ObjectChange *
message_apply_properties(Message *message)
{
MessageDialog *prop_dialog;
ObjectState *old_state;
prop_dialog = properties_dialog;
old_state = (ObjectState *)message_get_state(message);
/* Read from dialog and put in object: */
g_free(message->text);
message->text = strdup(gtk_entry_get_text(prop_dialog->text));
message->text_width =
font_string_width(message->text, message_font,
MESSAGE_FONTHEIGHT);
if (GTK_TOGGLE_BUTTON(prop_dialog->m_call)->active)
message->type = MESSAGE_CALL;
else if (GTK_TOGGLE_BUTTON( prop_dialog->m_return )->active)
message->type = MESSAGE_RETURN;
else if (GTK_TOGGLE_BUTTON( prop_dialog->m_create )->active)
message->type = MESSAGE_CREATE;
else if (GTK_TOGGLE_BUTTON( prop_dialog->m_destroy )->active)
message->type = MESSAGE_DESTROY;
else if (GTK_TOGGLE_BUTTON( prop_dialog->m_send )->active)
message->type = MESSAGE_SEND;
else if (GTK_TOGGLE_BUTTON( prop_dialog->m_simple )->active)
message->type = MESSAGE_SIMPLE;
else if (GTK_TOGGLE_BUTTON( prop_dialog->m_recursive )->active)
message->type = MESSAGE_RECURSIVE;
message_update_data(message);
return new_object_state_change((Object *)message, old_state,
(GetStateFunc)message_get_state,
(SetStateFunc)message_set_state);
}