static void
modify_button_release(ModifyTool *tool, GdkEventButton *event,
DDisplay *ddisp)
{
Point *dest_pos, to;
GList *list;
int i;
ObjectChange *objchange;
tool->break_connections = FALSE;
ddisplay_set_all_cursor(default_cursor);
/* remove position from status bar */
{
GtkStatusbar *statusbar = GTK_STATUSBAR (ddisp->modified_status);
guint context_id = gtk_statusbar_get_context_id (statusbar, "ObjectPos");
gtk_statusbar_pop (statusbar, context_id);
}
switch (tool->state) {
case STATE_MOVE_OBJECT:
/* Return to normal state */
gdk_pointer_ungrab (event->time);
ddisplay_untransform_coords(ddisp, event->x, event->y, &to.x, &to.y);
if (!modify_move_already(tool, ddisp, &to)) {
tool->orig_pos = NULL;
tool->state = STATE_NONE;
return;
}
diagram_update_connections_selection(ddisp->diagram);
if (tool->orig_pos != NULL) {
/* consider the non-selected children affected */
list = parent_list_affected(ddisp->diagram->data->selected);
dest_pos = g_new(Point, g_list_length(list));
i=0;
while (list != NULL) {
DiaObject *obj = (DiaObject *) list->data;
dest_pos[i] = obj->position;
list = g_list_next(list); i++;
}
undo_move_objects(ddisp->diagram, tool->orig_pos, dest_pos,
parent_list_affected(ddisp->diagram->data->selected));
}
ddisplay_connect_selected(ddisp); /* pushes UNDO info */
diagram_update_extents(ddisp->diagram);
diagram_modified(ddisp->diagram);
diagram_flush(ddisp->diagram);
undo_set_transactionpoint(ddisp->diagram->undo);
tool->orig_pos = NULL;
tool->state = STATE_NONE;
break;
case STATE_MOVE_HANDLE:
gdk_pointer_ungrab (event->time);
tool->state = STATE_NONE;
if (tool->orig_pos != NULL) {
undo_move_handle(ddisp->diagram, tool->handle, tool->object,
*tool->orig_pos, tool->last_to, gdk_event_to_dia_ModifierKeys(event->state));
}
/* Final move: */
object_add_updates(tool->object, ddisp->diagram);
objchange = tool->object->ops->move_handle(tool->object, tool->handle,
&tool->last_to, NULL,
HANDLE_MOVE_USER_FINAL,gdk_event_to_dia_ModifierKeys(event->state));
if (objchange != NULL) {
undo_object_change(ddisp->diagram, tool->object, objchange);
}
object_add_updates(tool->object, ddisp->diagram);
/* Connect if possible: */
if (tool->handle->connect_type != HANDLE_NONCONNECTABLE) {
object_connect_display(ddisp, tool->object, tool->handle, TRUE); /* pushes UNDO info */
diagram_update_connections_selection(ddisp->diagram);
}
highlight_reset_all(ddisp->diagram);
diagram_flush(ddisp->diagram);
diagram_modified(ddisp->diagram);
diagram_update_extents(ddisp->diagram);
undo_set_transactionpoint(ddisp->diagram->undo);
if (tool->orig_pos != NULL) {
g_free(tool->orig_pos);
tool->orig_pos = NULL;
}
break;
case STATE_BOX_SELECT:
gdk_pointer_ungrab (event->time);
/* Remove last box: */
dia_interactive_renderer_set_selection (ddisp->renderer,
FALSE, 0, 0, 0, 0);
{
GList *list, *list_to_free;
list = list_to_free = find_selected_objects(ddisp, tool);
if (selection_style == SELECT_REPLACE &&
!(event->state & GDK_SHIFT_MASK)) {
/* Not Multi-select => Remove all selected */
diagram_remove_all_selected(ddisp->diagram, TRUE);
}
if (selection_style == SELECT_INTERSECTION) {
GList *intersection = NULL;
while (list != NULL) {
DiaObject *obj = (DiaObject *)list->data;
if (diagram_is_selected(ddisp->diagram, obj)) {
intersection = g_list_append(intersection, obj);
}
list = g_list_next(list);
}
list = intersection;
diagram_remove_all_selected(ddisp->diagram, TRUE);
while (list != NULL) {
DiaObject *obj = (DiaObject *)list->data;
diagram_select(ddisp->diagram, obj);
list = g_list_next(list);
}
g_list_free(intersection);
} else {
while (list != NULL) {
DiaObject *obj = (DiaObject *)list->data;
if (selection_style == SELECT_REMOVE) {
if (diagram_is_selected(ddisp->diagram, obj))
diagram_unselect_object(ddisp->diagram, obj);
} else if (selection_style == SELECT_INVERT) {
if (diagram_is_selected(ddisp->diagram, obj))
diagram_unselect_object(ddisp->diagram, obj);
else
diagram_select(ddisp->diagram, obj);
} else {
if (!diagram_is_selected(ddisp->diagram, obj))
diagram_select(ddisp->diagram, obj);
}
list = g_list_next(list);
}
}
g_list_free(list_to_free);
}
ddisplay_do_update_menu_sensitivity(ddisp);
ddisplay_flush(ddisp);
tool->state = STATE_NONE;
break;
case STATE_NONE:
break;
default:
message_error("Internal error: Strange state in modify_tool\n");
}
}
static void
create_object_button_release(CreateObjectTool *tool, GdkEventButton *event,
DDisplay *ddisp)
{
GList *list = NULL;
DiaObject *obj = tool->obj;
gboolean reset;
GList *parent_candidates;
g_return_if_fail (obj != NULL);
if (!obj) /* not sure if this isn't enough */
return; /* could be a legal invariant */
if (tool->moving) {
gdk_pointer_ungrab (event->time);
object_add_updates(tool->obj, ddisp->diagram);
tool->obj->ops->move_handle(tool->obj, tool->handle, &tool->last_to,
NULL, HANDLE_MOVE_CREATE_FINAL, 0);
object_add_updates(tool->obj, ddisp->diagram);
}
parent_candidates =
layer_find_objects_containing_rectangle(obj->parent_layer,
&obj->bounding_box);
/* whole object must be within another object to parent it */
for (; parent_candidates != NULL; parent_candidates = g_list_next(parent_candidates)) {
DiaObject *parent_obj = (DiaObject *) parent_candidates->data;
if (obj != parent_obj
&& object_within_parent(obj, parent_obj)) {
Change *change = undo_parenting(ddisp->diagram, parent_obj, obj, TRUE);
(change->apply)(change, ddisp->diagram);
break;
/*
obj->parent = parent_obj;
parent_obj->children = g_list_append(parent_obj->children, obj);
*/
}
}
g_list_free(parent_candidates);
list = g_list_prepend(list, tool->obj);
undo_insert_objects(ddisp->diagram, list, 1);
if (tool->moving) {
if (tool->handle->connect_type != HANDLE_NONCONNECTABLE) {
object_connect_display(ddisp, tool->obj, tool->handle, TRUE);
diagram_update_connections_selection(ddisp->diagram);
diagram_flush(ddisp->diagram);
}
tool->moving = FALSE;
tool->handle = NULL;
tool->obj = NULL;
}
{
/* remove position from status bar */
GtkStatusbar *statusbar = GTK_STATUSBAR (ddisp->modified_status);
guint context_id = gtk_statusbar_get_context_id (statusbar, "ObjectPos");
gtk_statusbar_pop (statusbar, context_id);
}
highlight_reset_all(ddisp->diagram);
reset = prefs.reset_tools_after_create != tool->invert_persistence;
/* kind of backward: first starting editing to see if it is possible at all, than GUI reflection */
if (textedit_activate_object(ddisp, obj, NULL) && reset) {
gtk_action_activate (menus_get_action ("ToolsTextedit"));
reset = FALSE; /* don't switch off textedit below */
}
diagram_update_extents(ddisp->diagram);
diagram_modified(ddisp->diagram);
undo_set_transactionpoint(ddisp->diagram->undo);
if (reset)
tool_reset();
ddisplay_set_all_cursor(default_cursor);
ddisplay_do_update_menu_sensitivity(ddisp);
}
static void
modify_motion (ModifyTool *tool,
GdkEventMotion *event,
DDisplay *ddisp)
{
Point to;
Point now, delta, full_delta;
gboolean auto_scroll, vertical = FALSE;
ConnectionPoint *connectionpoint = NULL;
ObjectChange *objchange = NULL;
ddisplay_untransform_coords(ddisp, event->x, event->y, &to.x, &to.y);
if (tool->state==STATE_NONE) {
DiaObject *obj = NULL;
Handle *handle = NULL;
diagram_find_closest_handle (ddisp->diagram, &handle, &obj, &to);
if (handle && handle->type != HANDLE_NON_MOVABLE
&& handle->id >= HANDLE_RESIZE_NW && handle->id <= HANDLE_RESIZE_SE
&& handle_is_clicked(ddisp, handle, &to)
&& g_list_length (ddisp->diagram->data->selected) == 1)
ddisplay_set_all_cursor (get_direction_cursor (CURSOR_DIRECTION_0 + handle->id));
else
ddisplay_set_all_cursor_name (NULL, "default");
return; /* Fast path... */
}
auto_scroll = ddisplay_autoscroll(ddisp, event->x, event->y);
if (!modify_move_already(tool, ddisp, &to)) return;
switch (tool->state) {
case STATE_MOVE_OBJECT:
if (tool->orig_pos == NULL) {
GList *list, *pla;
int i;
DiaObject *obj;
/* consider non-selected children affected */
pla = list = parent_list_affected(ddisp->diagram->data->selected);
tool->orig_pos = g_new(Point, g_list_length(list));
i=0;
while (list != NULL) {
obj = (DiaObject *) list->data;
tool->orig_pos[i] = obj->position;
list = g_list_next(list); i++;
}
g_list_free (pla);
}
if (tool->break_connections)
diagram_unconnect_selected(ddisp->diagram); /* Pushes UNDO info */
if (gdk_event_to_dia_ModifierKeys (event->state) & MODIFIER_CONTROL) {
full_delta = to;
point_sub(&full_delta, &tool->start_at);
vertical = (fabs(full_delta.x) < fabs(full_delta.y));
}
point_add(&to, &tool->move_compensate);
snap_to_grid(ddisp, &to.x, &to.y);
now = tool->object->position;
delta = to;
point_sub(&delta, &now);
if (gdk_event_to_dia_ModifierKeys (event->state) & MODIFIER_CONTROL) {
/* Up-down or left-right */
if (vertical) {
delta.x = tool->start_at.x + tool->move_compensate.x - now.x;
} else {
delta.y = tool->start_at.y + tool->move_compensate.y - now.y;
}
}
object_add_updates_list(ddisp->diagram->data->selected, ddisp->diagram);
objchange = object_list_move_delta(ddisp->diagram->data->selected, &delta);
if (objchange != NULL) {
undo_object_change(ddisp->diagram, tool->object, objchange);
}
object_add_updates_list(ddisp->diagram->data->selected, ddisp->diagram);
object_add_updates(tool->object, ddisp->diagram);
/* Put current mouse position in status bar */
{
gchar *postext;
GtkStatusbar *statusbar = GTK_STATUSBAR (ddisp->modified_status);
guint context_id = gtk_statusbar_get_context_id (statusbar, "ObjectPos");
gtk_statusbar_pop (statusbar, context_id);
postext = g_strdup_printf("%.3f, %.3f - %.3f, %.3f",
tool->object->bounding_box.left,
tool->object->bounding_box.top,
tool->object->bounding_box.right,
tool->object->bounding_box.bottom);
gtk_statusbar_pop (statusbar, context_id);
gtk_statusbar_push (statusbar, context_id, postext);
g_free(postext);
}
diagram_update_connections_selection(ddisp->diagram);
diagram_flush(ddisp->diagram);
break;
case STATE_MOVE_HANDLE:
full_delta = to;
point_sub(&full_delta, &tool->start_at);
/* make sure resizing is restricted to its parent */
/* if resize was blocked by parent, that means the resizing was
outward, thus it won't bother the children so we don't have to
check the children */
if (!parent_handle_move_out_check(tool->object, &to))
parent_handle_move_in_check(tool->object, &to, &tool->start_at);
if (gdk_event_to_dia_ModifierKeys (event->state) & MODIFIER_CONTROL)
vertical = (fabs(full_delta.x) < fabs(full_delta.y));
highlight_reset_all(ddisp->diagram);
if ((tool->handle->connect_type != HANDLE_NONCONNECTABLE)) {
/* Move to ConnectionPoint if near: */
connectionpoint = object_find_connectpoint_display (ddisp,
&to,
tool->object, TRUE);
if (connectionpoint != NULL) {
DiaHighlightType type;
to = connectionpoint->pos;
if (connectionpoint->flags & CP_FLAGS_MAIN) {
type = DIA_HIGHLIGHT_CONNECTIONPOINT_MAIN;
} else {
type = DIA_HIGHLIGHT_CONNECTIONPOINT;
}
highlight_object(connectionpoint->object, type, ddisp->diagram);
ddisplay_set_all_cursor_name (NULL, "crosshair");
}
}
if (connectionpoint == NULL) {
/* No connectionopoint near, then snap to grid (if enabled) */
snap_to_grid(ddisp, &to.x, &to.y);
ddisplay_set_all_cursor_name (NULL, "move");
}
if (tool->break_connections) {
/* break connections to the handle currently selected. */
if (tool->handle->connected_to!=NULL) {
Change *change = undo_unconnect (ddisp->diagram,
tool->object,
tool->handle);
(change->apply)(change, ddisp->diagram);
}
}
if (gdk_event_to_dia_ModifierKeys (event->state) & MODIFIER_CONTROL) {
/* Up-down or left-right */
if (vertical) {
to.x = tool->start_at.x;
} else {
to.y = tool->start_at.y;
}
}
if (tool->orig_pos == NULL) {
tool->orig_pos = g_new(Point, 1);
*tool->orig_pos = tool->handle->pos;
}
/* Put current mouse position in status bar */
{
gchar *postext;
GtkStatusbar *statusbar = GTK_STATUSBAR (ddisp->modified_status);
guint context_id = gtk_statusbar_get_context_id (statusbar, "ObjectPos");
if (tool->object) { /* play safe */
real w = tool->object->bounding_box.right - tool->object->bounding_box.left;
real h = tool->object->bounding_box.bottom - tool->object->bounding_box.top;
postext = g_strdup_printf("%.3f, %.3f (%.3fx%.3f)", to.x, to.y, w, h);
} else {
postext = g_strdup_printf("%.3f, %.3f", to.x, to.y);
}
gtk_statusbar_pop (statusbar, context_id);
gtk_statusbar_push (statusbar, context_id, postext);
g_free(postext);
}
object_add_updates(tool->object, ddisp->diagram);
/* Handle undo */
if (tool->object)
objchange = tool->object->ops->move_handle(tool->object, tool->handle,
&to, connectionpoint,
HANDLE_MOVE_USER, gdk_event_to_dia_ModifierKeys(event->state));
if (objchange != NULL) {
undo_object_change(ddisp->diagram, tool->object, objchange);
}
object_add_updates(tool->object, ddisp->diagram);
diagram_update_connections_selection(ddisp->diagram);
diagram_flush(ddisp->diagram);
break;
case STATE_BOX_SELECT:
tool->end_box = to;
ddisplay_transform_coords (ddisp,
MIN (tool->start_box.x, tool->end_box.x),
MIN (tool->start_box.y, tool->end_box.y),
&tool->x1, &tool->y1);
ddisplay_transform_coords (ddisp,
MAX (tool->start_box.x, tool->end_box.x),
MAX (tool->start_box.y, tool->end_box.y),
&tool->x2, &tool->y2);
dia_interactive_renderer_set_selection (ddisp->renderer,
TRUE,
tool->x1,
tool->y1,
tool->x2 - tool->x1,
tool->y2 - tool->y1);
ddisplay_flush (ddisp);
break;
case STATE_NONE:
break;
default:
message_error("Internal error: Strange state in modify_tool\n");
}
tool->last_to = to;
tool->auto_scrolled = auto_scroll;
}
/*!
* \brief Calback function invoking layout algorithms from Dia's menu
* \ingroup LayoutPlugin
*/
static ObjectChange *
layout_callback (DiagramData *data,
const gchar *filename,
guint flags, /* further additions */
void *user_data,
GraphCreateFunc func)
{
ObjectChange *changes = NULL;
GList *nodes = NULL, *edges = NULL, *list;
const char *algorithm = (const char*)user_data;
/* from the selection create two lists */
list = data_get_sorted_selected (data);
while (list) {
DiaObject *o = (DiaObject *)list->data;
if (!maybe_edge (o))
nodes = g_list_append (nodes, o);
//FIXME: neither 1 nor num_handles-1 is guaranteed to be the second connection
// it entirely depends on the objects implementation
else if ( o->num_handles > 1 && o->handles[0]->connected_to
&& (o->handles[1]->connected_to || o->handles[o->num_handles-1]->connected_to))
edges = g_list_append (edges, o);
list = g_list_next(list);
}
if (g_list_length (edges) < 1 || g_list_length (nodes) < 2) {
message_warning (_("Please select edges and nodes to layout."));
} else {
IGraph *g = func ? func () : NULL;
if (!g)
message_error (_("Graph creation failed"));
else {
std::vector<double> coords;
/* transfer nodes and edges */
for (list = nodes; list != NULL; list = g_list_next(list)) {
DiaObject *o = (DiaObject *)list->data;
const Rectangle *bbox = dia_object_get_bounding_box (o);
g->AddNode (bbox->left, bbox->top, bbox->right, bbox->bottom);
}
for (list = edges; list != NULL; list = g_list_next(list)) {
DiaObject *o = (DiaObject *)list->data;
DiaObject *src = o->handles[0]->connected_to->object;
// see above: there is no guarantee ...
DiaObject *dst = o->handles[1]->connected_to ?
o->handles[1]->connected_to->object : o->handles[o->num_handles-1]->connected_to->object;
if (_obj_get_bends (o, coords))
g->AddEdge (g_list_index (nodes, src), g_list_index (nodes, dst), &coords[0], coords.size());
else
g->AddEdge (g_list_index (nodes, src), g_list_index (nodes, dst), NULL, 0);
}
IGraph::eResult res;
if ((res = g->Layout (algorithm)) != IGraph::SUCCESS) {
const char *sErr;
switch (res) {
case IGraph::NO_MODULE : sErr = _("No such module."); break;
case IGraph::OUT_OF_MEMORY : sErr = _("Out of memory."); break;
case IGraph::NO_TREE: sErr = _("Not a tree."); break;
case IGraph::NO_FOREST: sErr = _("Not a forest."); break;
case IGraph::FAILED_ALGORITHM: sErr = _("Failed algorithm."); break;
case IGraph::FAILED_PRECONDITION: sErr = _("Failed precondition."); break;
case IGraph::CRASHED : sErr = _("OGDF crashed."); break;
default : sErr = _("Unknown reason"); break;
}
message_warning (_("Layout '%s' failed.\n%s"), (const char*)user_data, sErr);
} else {
changes = change_list_create ();
/* transfer back information */
int n;
for (n = 0, list = nodes; list != NULL; list = g_list_next (list), ++n) {
Point pt;
if (g->GetNodePosition (n, &pt.x, &pt.y)) {
DiaObject *o = (DiaObject *)list->data;
GPtrArray *props = g_ptr_array_new ();
//FIXME: can't use "obj_pos", it is not read in usual update_data impementations
// "elem_corner" will only work for Element derived classes, but that covers most
// of the cases here ...
prop_list_add_point (props, "elem_corner", &pt);
change_list_add (changes, object_apply_props (o, props));
}
}
// first update to reuse the connected points
diagram_update_connections_selection(DIA_DIAGRAM (data));
/* use edge bends, if any */
int e;
for (e = 0, list = edges; list != NULL; list = g_list_next (list), ++e) {
DiaObject *o = (DiaObject *)list->data;
// number of bends / 2 is the number of points
int n = g->GetEdgeBends (e, NULL, 0);
if (n >= 0) { // with 0 it is just a reset of the exisiting line
try {
coords.resize (n);
} catch (std::bad_alloc& ex) {
g_warning ("%s", ex.what());
continue;
}
g->GetEdgeBends (e, &coords[0], n);
change_list_add (changes, _obj_set_bends (o, coords));
}
}
/* update view */
diagram_update_connections_selection(DIA_DIAGRAM (data));
}
g->Release ();
}
}
g_list_free (nodes);
g_list_free (edges);
return changes;
}
