void
sp_gradient_context_select_prev (SPEventContext *event_context)
{
GrDrag *drag = event_context->_grdrag;
g_assert (drag);
GrDragger *d = drag->select_prev();
event_context->desktop->scroll_to_point(d->point, 1.0);
}
static void
sp_gradient_context_add_stops_between_selected_stops (SPGradientContext *rc)
{
SPDocument *doc = NULL;
GrDrag *drag = rc->_grdrag;
GSList *these_stops = NULL;
GSList *next_stops = NULL;
std::vector<Geom::Point> coords = sp_gradient_context_get_stop_intervals (drag, &these_stops, &next_stops);
if (g_slist_length(these_stops) == 0 && drag->numSelected() == 1) {
// if a single stop is selected, add between that stop and the next one
GrDragger *dragger = (GrDragger *) drag->selected->data;
for (GSList const* j = dragger->draggables; j != NULL; j = j->next) {
GrDraggable *d = (GrDraggable *) j->data;
SPGradient *gradient = sp_item_gradient (d->item, d->fill_or_stroke);
SPGradient *vector = sp_gradient_get_forked_vector_if_necessary (gradient, false);
SPStop *this_stop = sp_get_stop_i (vector, d->point_i);
SPStop *next_stop = sp_next_stop (this_stop);
if (this_stop && next_stop) {
these_stops = g_slist_prepend (these_stops, this_stop);
next_stops = g_slist_prepend (next_stops, next_stop);
}
}
}
// now actually create the new stops
GSList *i = these_stops;
GSList *j = next_stops;
for (; i != NULL && j != NULL; i = i->next, j = j->next) {
SPStop *this_stop = (SPStop *) i->data;
SPStop *next_stop = (SPStop *) j->data;
gfloat offset = 0.5*(this_stop->offset + next_stop->offset);
SPObject *parent = SP_OBJECT_PARENT(this_stop);
if (SP_IS_GRADIENT (parent)) {
doc = SP_OBJECT_DOCUMENT (parent);
sp_vector_add_stop (SP_GRADIENT (parent), this_stop, next_stop, offset);
sp_gradient_ensure_vector (SP_GRADIENT (parent));
}
}
if (g_slist_length(these_stops) > 0 && doc) {
sp_document_done (doc, SP_VERB_CONTEXT_GRADIENT, _("Add gradient stop"));
drag->updateDraggers();
// so that it does not automatically update draggers in idle loop, as this would deselect
drag->local_change = true;
// select all the old selected and new created draggers
drag->selectByCoords(coords);
}
g_slist_free (these_stops);
g_slist_free (next_stops);
}
/*
* Change desktop drag selection to this stop
*/
static void select_drag_by_stop( GtkWidget *data, SPGradient *gradient, ToolBase *ev)
{
if (blocked || !ev || !gradient)
return;
GrDrag *drag = ev->get_drag();
if (!drag) {
return;
}
SPStop *stop = get_selected_stop(data);
drag->selectByStop(stop, false, true);
blocked = FALSE;
}
static void
gradient_selection_changed (Inkscape::Selection *, gpointer data)
{
SPGradientContext *rc = (SPGradientContext *) data;
GrDrag *drag = rc->_grdrag;
Inkscape::Selection *selection = sp_desktop_selection(SP_EVENT_CONTEXT(rc)->desktop);
guint n_obj = g_slist_length((GSList *) selection->itemList());
if (!drag->isNonEmpty() || selection->isEmpty())
return;
guint n_tot = drag->numDraggers();
guint n_sel = drag->numSelected();
//The use of ngettext in the following code is intentional even if the English singular form would never be used
if (n_sel == 1) {
if (drag->singleSelectedDraggerNumDraggables() == 1) {
gchar * message = g_strconcat(
//TRANSLATORS: %s will be substituted with the point name (see previous messages); This is part of a compound message
_("%s selected"),
//TRANSLATORS: Mind the space in front. This is part of a compound message
ngettext(" out of %d gradient handle"," out of %d gradient handles",n_tot),
ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL);
rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,
message,_(gr_handle_descr[drag->singleSelectedDraggerSingleDraggableType()]), n_tot, n_obj);
} else {
gchar * message = g_strconcat(
//TRANSLATORS: This is a part of a compound message (out of two more indicating: grandint handle count & object count)
ngettext("One handle merging %d stop (drag with <b>Shift</b> to separate) selected",
"One handle merging %d stops (drag with <b>Shift</b> to separate) selected",drag->singleSelectedDraggerNumDraggables()),
ngettext(" out of %d gradient handle"," out of %d gradient handles",n_tot),
ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL);
rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,message,drag->singleSelectedDraggerNumDraggables(), n_tot, n_obj);
}
} else if (n_sel > 1) {
//TRANSLATORS: The plural refers to number of selected gradient handles. This is part of a compound message (part two indicates selected object count)
gchar * message = g_strconcat(ngettext("<b>%d</b> gradient handle selected out of %d","<b>%d</b> gradient handles selected out of %d",n_sel),
//TRANSLATORS: Mind the space in front. (Refers to gradient handles selected). This is part of a compound message
ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL);
rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,message, n_sel, n_tot, n_obj);
} else if (n_sel == 0) {
rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,
//TRANSLATORS: The plural refers to number of selected objects
ngettext("<b>No</b> gradient handles selected out of %d on %d selected object",
"<b>No</b> gradient handles selected out of %d on %d selected objects",n_obj), n_tot, n_obj);
}
}
static void gr_remove_stop(GtkWidget * /*button*/, GtkWidget *vb)
{
SPDesktop *desktop = static_cast<SPDesktop *>(g_object_get_data(G_OBJECT(vb), "desktop"));
if (!desktop) {
return;
}
Inkscape::Selection *selection = sp_desktop_selection(desktop); // take from desktop, not from args
if (!selection) {
return;
}
ToolBase *ev = desktop->getEventContext();
GrDrag *drag = NULL;
if (ev) {
drag = ev->get_drag();
}
if (drag) {
drag->deleteSelected();
}
}
static gint
sp_gradient_context_root_handler(SPEventContext *event_context, GdkEvent *event)
{
static bool dragging;
SPDesktop *desktop = event_context->desktop;
Inkscape::Selection *selection = sp_desktop_selection (desktop);
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
SPGradientContext *rc = SP_GRADIENT_CONTEXT(event_context);
event_context->tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
double const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000); // in px
GrDrag *drag = event_context->_grdrag;
g_assert (drag);
gint ret = FALSE;
switch (event->type) {
case GDK_2BUTTON_PRESS:
if ( event->button.button == 1 ) {
bool over_line = false;
SPCtrlLine *line = NULL;
if (drag->lines) {
for (GSList *l = drag->lines; (l != NULL) && (!over_line); l = l->next) {
line = (SPCtrlLine*) l->data;
over_line |= sp_gradient_context_is_over_line (rc, (SPItem*) line, Geom::Point(event->motion.x, event->motion.y));
}
}
if (over_line) {
// we take the first item in selection, because with doubleclick, the first click
// always resets selection to the single object under cursor
sp_gradient_context_add_stop_near_point(rc, SP_ITEM(selection->itemList()->data), rc->mousepoint_doc, event->button.time);
} else {
for (GSList const* i = selection->itemList(); i != NULL; i = i->next) {
SPItem *item = SP_ITEM(i->data);
SPGradientType new_type = (SPGradientType) prefs->getInt("/tools/gradient/newgradient", SP_GRADIENT_TYPE_LINEAR);
guint new_fill = prefs->getInt("/tools/gradient/newfillorstroke", 1);
SPGradient *vector = sp_gradient_vector_for_object(sp_desktop_document(desktop), desktop, SP_OBJECT (item), new_fill);
SPGradient *priv = sp_item_set_gradient(item, vector, new_type, new_fill);
sp_gradient_reset_to_userspace(priv, item);
}
sp_document_done (sp_desktop_document (desktop), SP_VERB_CONTEXT_GRADIENT,
_("Create default gradient"));
}
ret = TRUE;
}
break;
case GDK_BUTTON_PRESS:
if ( event->button.button == 1 && !event_context->space_panning ) {
Geom::Point button_w(event->button.x, event->button.y);
// save drag origin
event_context->xp = (gint) button_w[Geom::X];
event_context->yp = (gint) button_w[Geom::Y];
event_context->within_tolerance = true;
dragging = true;
Geom::Point button_dt = to_2geom(desktop->w2d(button_w));
if (event->button.state & GDK_SHIFT_MASK) {
Inkscape::Rubberband::get(desktop)->start(desktop, from_2geom(button_dt));
} else {
// remember clicked item, disregarding groups, honoring Alt; do nothing with Crtl to
// enable Ctrl+doubleclick of exactly the selected item(s)
if (!(event->button.state & GDK_CONTROL_MASK))
event_context->item_to_select = sp_event_context_find_item (desktop, button_w, event->button.state & GDK_MOD1_MASK, TRUE);
/* Snap center to nearest magnetic point */
SnapManager &m = desktop->namedview->snap_manager;
m.setup(desktop);
m.freeSnapReturnByRef(Inkscape::SnapPreferences::SNAPPOINT_NODE, button_dt);
rc->origin = from_2geom(button_dt);
}
ret = TRUE;
}
break;
case GDK_MOTION_NOTIFY:
if ( dragging
&& ( event->motion.state & GDK_BUTTON1_MASK ) && !event_context->space_panning )
{
if ( event_context->within_tolerance
&& ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
&& ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
break; // do not drag if we're within tolerance from origin
}
// Once the user has moved farther than tolerance from the original location
// (indicating they intend to draw, not click), then always process the
// motion notify coordinates as given (no snapping back to origin)
event_context->within_tolerance = false;
Geom::Point const motion_w(event->motion.x,
event->motion.y);
Geom::Point const motion_dt = event_context->desktop->w2d(motion_w);
if (Inkscape::Rubberband::get(desktop)->is_started()) {
Inkscape::Rubberband::get(desktop)->move(motion_dt);
event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw around</b> handles to select them"));
} else {
sp_gradient_drag(*rc, motion_dt, event->motion.state, event->motion.time);
}
gobble_motion_events(GDK_BUTTON1_MASK);
ret = TRUE;
} else {
bool over_line = false;
if (drag->lines) {
for (GSList *l = drag->lines; l != NULL; l = l->next) {
over_line |= sp_gradient_context_is_over_line (rc, (SPItem*) l->data, Geom::Point(event->motion.x, event->motion.y));
}
}
if (rc->cursor_addnode && !over_line) {
event_context->cursor_shape = cursor_gradient_xpm;
sp_event_context_update_cursor(event_context);
rc->cursor_addnode = false;
} else if (!rc->cursor_addnode && over_line) {
event_context->cursor_shape = cursor_gradient_add_xpm;
sp_event_context_update_cursor(event_context);
rc->cursor_addnode = true;
}
}
break;
case GDK_BUTTON_RELEASE:
event_context->xp = event_context->yp = 0;
if ( event->button.button == 1 && !event_context->space_panning ) {
if ( (event->button.state & GDK_CONTROL_MASK) && (event->button.state & GDK_MOD1_MASK ) ) {
bool over_line = false;
SPCtrlLine *line = NULL;
if (drag->lines) {
for (GSList *l = drag->lines; (l != NULL) && (!over_line); l = l->next) {
line = (SPCtrlLine*) l->data;
over_line = sp_gradient_context_is_over_line (rc, (SPItem*) line, Geom::Point(event->motion.x, event->motion.y));
if (over_line)
break;
}
}
if (over_line && line) {
sp_gradient_context_add_stop_near_point(rc, line->item, rc->mousepoint_doc, 0);
ret = TRUE;
}
} else {
dragging = false;
// unless clicked with Ctrl (to enable Ctrl+doubleclick).
if (event->button.state & GDK_CONTROL_MASK) {
ret = TRUE;
break;
}
if (!event_context->within_tolerance) {
// we've been dragging, either do nothing (grdrag handles that),
// or rubberband-select if we have rubberband
Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get(desktop);
if (r->is_started() && !event_context->within_tolerance) {
// this was a rubberband drag
if (r->getMode() == RUBBERBAND_MODE_RECT) {
Geom::OptRect const b = r->getRectangle();
drag->selectRect(*b);
}
}
} else if (event_context->item_to_select) {
// no dragging, select clicked item if any
if (event->button.state & GDK_SHIFT_MASK) {
selection->toggle(event_context->item_to_select);
} else {
selection->set(event_context->item_to_select);
}
} else {
// click in an empty space; do the same as Esc
if (drag->selected) {
drag->deselectAll();
} else {
selection->clear();
}
}
event_context->item_to_select = NULL;
ret = TRUE;
}
Inkscape::Rubberband::get(desktop)->stop();
}
break;
case GDK_KEY_PRESS:
switch (get_group0_keyval (&event->key)) {
case GDK_Alt_L:
case GDK_Alt_R:
case GDK_Control_L:
case GDK_Control_R:
case GDK_Shift_L:
case GDK_Shift_R:
case GDK_Meta_L: // Meta is when you press Shift+Alt (at least on my machine)
case GDK_Meta_R:
sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,
_("<b>Ctrl</b>: snap gradient angle"),
_("<b>Shift</b>: draw gradient around the starting point"),
NULL);
break;
case GDK_x:
case GDK_X:
if (MOD__ALT_ONLY) {
desktop->setToolboxFocusTo ("altx-grad");
ret = TRUE;
}
break;
case GDK_A:
case GDK_a:
if (MOD__CTRL_ONLY && drag->isNonEmpty()) {
drag->selectAll();
ret = TRUE;
}
break;
case GDK_L:
case GDK_l:
if (MOD__CTRL_ONLY && drag->isNonEmpty() && drag->hasSelection()) {
sp_gradient_simplify(rc, 1e-4);
ret = TRUE;
}
break;
case GDK_Escape:
if (drag->selected) {
drag->deselectAll();
} else {
selection->clear();
}
ret = TRUE;
//TODO: make dragging escapable by Esc
break;
case GDK_Left: // move handle left
case GDK_KP_Left:
case GDK_KP_4:
if (!MOD__CTRL) { // not ctrl
gint mul = 1 + gobble_key_events(
get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT) { // alt
if (MOD__SHIFT) drag->selected_move_screen(mul*-10, 0); // shift
else drag->selected_move_screen(mul*-1, 0); // no shift
}
else { // no alt
if (MOD__SHIFT) drag->selected_move(mul*-10*nudge, 0); // shift
else drag->selected_move(mul*-nudge, 0); // no shift
}
ret = TRUE;
}
break;
case GDK_Up: // move handle up
case GDK_KP_Up:
case GDK_KP_8:
if (!MOD__CTRL) { // not ctrl
gint mul = 1 + gobble_key_events(
get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT) { // alt
if (MOD__SHIFT) drag->selected_move_screen(0, mul*10); // shift
else drag->selected_move_screen(0, mul*1); // no shift
}
else { // no alt
if (MOD__SHIFT) drag->selected_move(0, mul*10*nudge); // shift
else drag->selected_move(0, mul*nudge); // no shift
}
ret = TRUE;
}
break;
case GDK_Right: // move handle right
case GDK_KP_Right:
case GDK_KP_6:
if (!MOD__CTRL) { // not ctrl
gint mul = 1 + gobble_key_events(
get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT) { // alt
if (MOD__SHIFT) drag->selected_move_screen(mul*10, 0); // shift
else drag->selected_move_screen(mul*1, 0); // no shift
}
else { // no alt
if (MOD__SHIFT) drag->selected_move(mul*10*nudge, 0); // shift
else drag->selected_move(mul*nudge, 0); // no shift
}
ret = TRUE;
}
break;
case GDK_Down: // move handle down
case GDK_KP_Down:
case GDK_KP_2:
if (!MOD__CTRL) { // not ctrl
gint mul = 1 + gobble_key_events(
get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT) { // alt
if (MOD__SHIFT) drag->selected_move_screen(0, mul*-10); // shift
else drag->selected_move_screen(0, mul*-1); // no shift
}
else { // no alt
if (MOD__SHIFT) drag->selected_move(0, mul*-10*nudge); // shift
else drag->selected_move(0, mul*-nudge); // no shift
}
ret = TRUE;
}
break;
case GDK_r:
case GDK_R:
if (MOD__SHIFT_ONLY) {
// First try selected dragger
if (drag && drag->selected) {
drag->selected_reverse_vector();
} else { // If no drag or no dragger selected, act on selection (both fill and stroke gradients)
for (GSList const* i = selection->itemList(); i != NULL; i = i->next) {
sp_item_gradient_reverse_vector (SP_ITEM(i->data), true);
sp_item_gradient_reverse_vector (SP_ITEM(i->data), false);
}
}
// we did an undoable action
sp_document_done (sp_desktop_document (desktop), SP_VERB_CONTEXT_GRADIENT,
_("Invert gradient"));
ret = TRUE;
}
break;
case GDK_Insert:
case GDK_KP_Insert:
// with any modifiers:
sp_gradient_context_add_stops_between_selected_stops (rc);
ret = TRUE;
break;
case GDK_Delete:
case GDK_KP_Delete:
case GDK_BackSpace:
if ( drag->selected ) {
drag->deleteSelected(MOD__CTRL_ONLY);
ret = TRUE;
}
break;
default:
break;
}
break;
case GDK_KEY_RELEASE:
switch (get_group0_keyval (&event->key)) {
case GDK_Alt_L:
case GDK_Alt_R:
case GDK_Control_L:
case GDK_Control_R:
case GDK_Shift_L:
case GDK_Shift_R:
case GDK_Meta_L: // Meta is when you press Shift+Alt
case GDK_Meta_R:
event_context->defaultMessageContext()->clear();
break;
default:
break;
}
break;
default:
break;
}
if (!ret) {
if (((SPEventContextClass *) parent_class)->root_handler) {
ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
}
}
return ret;
}
static void
sp_gradient_simplify(SPGradientContext *rc, double tolerance)
{
SPDocument *doc = NULL;
GrDrag *drag = rc->_grdrag;
GSList *these_stops = NULL;
GSList *next_stops = NULL;
std::vector<Geom::Point> coords = sp_gradient_context_get_stop_intervals (drag, &these_stops, &next_stops);
GSList *todel = NULL;
GSList *i = these_stops;
GSList *j = next_stops;
for (; i != NULL && j != NULL; i = i->next, j = j->next) {
SPStop *stop0 = (SPStop *) i->data;
SPStop *stop1 = (SPStop *) j->data;
gint i1 = g_slist_index(these_stops, stop1);
if (i1 != -1) {
GSList *next_next = g_slist_nth (next_stops, i1);
if (next_next) {
SPStop *stop2 = (SPStop *) next_next->data;
if (g_slist_find(todel, stop0) || g_slist_find(todel, stop2))
continue;
guint32 const c0 = sp_stop_get_rgba32(stop0);
guint32 const c2 = sp_stop_get_rgba32(stop2);
guint32 const c1r = sp_stop_get_rgba32(stop1);
guint32 c1 = average_color (c0, c2,
(stop1->offset - stop0->offset) / (stop2->offset - stop0->offset));
double diff =
sqr(SP_RGBA32_R_F(c1) - SP_RGBA32_R_F(c1r)) +
sqr(SP_RGBA32_G_F(c1) - SP_RGBA32_G_F(c1r)) +
sqr(SP_RGBA32_B_F(c1) - SP_RGBA32_B_F(c1r)) +
sqr(SP_RGBA32_A_F(c1) - SP_RGBA32_A_F(c1r));
if (diff < tolerance)
todel = g_slist_prepend (todel, stop1);
}
}
}
for (i = todel; i != NULL; i = i->next) {
SPStop *stop = (SPStop*) i->data;
doc = SP_OBJECT_DOCUMENT (stop);
Inkscape::XML::Node * parent = SP_OBJECT_REPR(stop)->parent();
parent->removeChild(SP_OBJECT_REPR(stop));
}
if (g_slist_length(todel) > 0) {
sp_document_done (doc, SP_VERB_CONTEXT_GRADIENT, _("Simplify gradient"));
drag->local_change = true;
drag->updateDraggers();
drag->selectByCoords(coords);
}
g_slist_free (todel);
g_slist_free (these_stops);
g_slist_free (next_stops);
}
/**
Handles all keyboard and mouse input for meshs.
*/
static gint
sp_mesh_context_root_handler(SPEventContext *event_context, GdkEvent *event)
{
// static int count = 0;
// std::cout << "sp_mesh_context_root_handler: " << count++ << std::endl;
static bool dragging;
SPDesktop *desktop = event_context->desktop;
Inkscape::Selection *selection = sp_desktop_selection (desktop);
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
SPMeshContext *rc = SP_MESH_CONTEXT(event_context);
event_context->tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
double const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000, "px"); // in px
GrDrag *drag = event_context->_grdrag;
g_assert (drag);
gint ret = FALSE;
switch (event->type) {
case GDK_2BUTTON_PRESS:
#ifdef DEBUG_MESH
std::cout << "sp_mesh_context_root_handler: GDK_2BUTTON_PRESS" << std::endl;
#endif
// Double click:
// If over a mesh line, divide mesh row/column
// If not over a line, create new gradients for selected objects.
if ( event->button.button == 1 ) {
// Are we over a mesh line?
bool over_line = false;
SPCtrlCurve *line = NULL;
if (drag->lines) {
for (GSList *l = drag->lines; (l != NULL) && (!over_line); l = l->next) {
line = (SPCtrlCurve*) l->data;
over_line |= sp_mesh_context_is_over_line (rc, (SPItem*) line, Geom::Point(event->motion.x, event->motion.y));
}
}
if (over_line) {
// We take the first item in selection, because with doubleclick, the first click
// always resets selection to the single object under cursor
sp_mesh_context_split_near_point(rc, SP_ITEM(selection->itemList()->data), rc->mousepoint_doc, event->button.time);
} else {
// Create a new gradient with default coordinates.
for (GSList const* i = selection->itemList(); i != NULL; i = i->next) {
SPItem *item = SP_ITEM(i->data);
SPGradientType new_type = SP_GRADIENT_TYPE_MESH;
Inkscape::PaintTarget fsmode = (prefs->getInt("/tools/gradient/newfillorstroke", 1) != 0) ? Inkscape::FOR_FILL : Inkscape::FOR_STROKE;
#ifdef DEBUG_MESH
std::cout << "sp_mesh_context_root_handler: creating new mesh on: " << (fsmode == Inkscape::FOR_FILL ? "Fill" : "Stroke") << std::endl;
#endif
SPGradient *vector = sp_gradient_vector_for_object(sp_desktop_document(desktop), desktop, item, fsmode);
SPGradient *priv = sp_item_set_gradient(item, vector, new_type, fsmode);
sp_gradient_reset_to_userspace(priv, item);
}
DocumentUndo::done(sp_desktop_document (desktop), SP_VERB_CONTEXT_MESH,
_("Create default mesh"));
}
ret = TRUE;
}
break;
case GDK_BUTTON_PRESS:
#ifdef DEBUG_MESH
std::cout << "sp_mesh_context_root_handler: GDK_BUTTON_PRESS" << std::endl;
#endif
// Button down
// If Shift key down: do rubber band selection
// Else set origin for drag. A drag creates a new gradient if one does not exist
if ( event->button.button == 1 && !event_context->space_panning ) {
Geom::Point button_w(event->button.x, event->button.y);
// save drag origin
event_context->xp = (gint) button_w[Geom::X];
event_context->yp = (gint) button_w[Geom::Y];
event_context->within_tolerance = true;
dragging = true;
Geom::Point button_dt = desktop->w2d(button_w);
if (event->button.state & GDK_SHIFT_MASK) {
Inkscape::Rubberband::get(desktop)->start(desktop, button_dt);
} else {
// remember clicked item, disregarding groups, honoring Alt; do nothing with Crtl to
// enable Ctrl+doubleclick of exactly the selected item(s)
if (!(event->button.state & GDK_CONTROL_MASK))
event_context->item_to_select = sp_event_context_find_item (desktop, button_w, event->button.state & GDK_MOD1_MASK, TRUE);
if (!selection->isEmpty()) {
SnapManager &m = desktop->namedview->snap_manager;
m.setup(desktop);
m.freeSnapReturnByRef(button_dt, Inkscape::SNAPSOURCE_NODE_HANDLE);
m.unSetup();
}
rc->origin = button_dt;
}
ret = TRUE;
}
break;
case GDK_MOTION_NOTIFY:
// Mouse move
if ( dragging
&& ( event->motion.state & GDK_BUTTON1_MASK ) && !event_context->space_panning )
{
#ifdef DEBUG_MESH
std::cout << "sp_mesh_context_root_handler: GDK_MOTION_NOTIFY: Dragging" << std::endl;
#endif
if ( event_context->within_tolerance
&& ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
&& ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
break; // do not drag if we're within tolerance from origin
}
// Once the user has moved farther than tolerance from the original location
// (indicating they intend to draw, not click), then always process the
// motion notify coordinates as given (no snapping back to origin)
event_context->within_tolerance = false;
Geom::Point const motion_w(event->motion.x,
event->motion.y);
Geom::Point const motion_dt = event_context->desktop->w2d(motion_w);
if (Inkscape::Rubberband::get(desktop)->is_started()) {
Inkscape::Rubberband::get(desktop)->move(motion_dt);
event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw around</b> handles to select them"));
} else {
// Create new gradient with coordinates determined by drag.
sp_mesh_drag(*rc, motion_dt, event->motion.state, event->motion.time);
}
gobble_motion_events(GDK_BUTTON1_MASK);
ret = TRUE;
} else {
// Not dragging
// Do snapping
if (!drag->mouseOver() && !selection->isEmpty()) {
SnapManager &m = desktop->namedview->snap_manager;
m.setup(desktop);
Geom::Point const motion_w(event->motion.x, event->motion.y);
Geom::Point const motion_dt = event_context->desktop->w2d(motion_w);
m.preSnap(Inkscape::SnapCandidatePoint(motion_dt, Inkscape::SNAPSOURCE_OTHER_HANDLE));
m.unSetup();
}
// Highlight corner node corresponding to side or tensor node
if( drag->mouseOver() ) {
// MESH FIXME: Light up corresponding corner node corresponding to node we are over.
// See "pathflash" in ui/tools/node-tool.cpp for ideas.
// Use desktop->add_temporary_canvasitem( SPCanvasItem, milliseconds );
}
// Change cursor shape if over line
bool over_line = false;
if (drag->lines) {
for (GSList *l = drag->lines; l != NULL; l = l->next) {
over_line |= sp_mesh_context_is_over_line (rc, (SPItem*) l->data, Geom::Point(event->motion.x, event->motion.y));
}
}
if (rc->cursor_addnode && !over_line) {
event_context->cursor_shape = cursor_gradient_xpm;
sp_event_context_update_cursor(event_context);
rc->cursor_addnode = false;
} else if (!rc->cursor_addnode && over_line) {
event_context->cursor_shape = cursor_gradient_add_xpm;
sp_event_context_update_cursor(event_context);
rc->cursor_addnode = true;
}
}
break;
case GDK_BUTTON_RELEASE:
#ifdef DEBUG_MESH
std::cout << "sp_mesh_context_root_handler: GDK_BUTTON_RELEASE" << std::endl;
#endif
event_context->xp = event_context->yp = 0;
if ( event->button.button == 1 && !event_context->space_panning ) {
// Check if over line
bool over_line = false;
SPCtrlLine *line = NULL;
if (drag->lines) {
for (GSList *l = drag->lines; (l != NULL) && (!over_line); l = l->next) {
line = (SPCtrlLine*) l->data;
over_line = sp_mesh_context_is_over_line (rc, (SPItem*) line, Geom::Point(event->motion.x, event->motion.y));
if (over_line)
break;
}
}
if ( (event->button.state & GDK_CONTROL_MASK) && (event->button.state & GDK_MOD1_MASK ) ) {
if (over_line && line) {
sp_mesh_context_split_near_point(rc, line->item, rc->mousepoint_doc, 0);
ret = TRUE;
}
} else {
dragging = false;
// unless clicked with Ctrl (to enable Ctrl+doubleclick).
if (event->button.state & GDK_CONTROL_MASK) {
ret = TRUE;
break;
}
if (!event_context->within_tolerance) {
// we've been dragging, either do nothing (grdrag handles that),
// or rubberband-select if we have rubberband
Inkscape::Rubberband *r = Inkscape::Rubberband::get(desktop);
if (r->is_started() && !event_context->within_tolerance) {
// this was a rubberband drag
if (r->getMode() == RUBBERBAND_MODE_RECT) {
Geom::OptRect const b = r->getRectangle();
drag->selectRect(*b);
}
}
} else if (event_context->item_to_select) {
if (over_line && line) {
// Clicked on an existing mesh line, don't change selection. This stops
// possible change in selection during a double click with overlapping objects
}
else {
// no dragging, select clicked item if any
if (event->button.state & GDK_SHIFT_MASK) {
selection->toggle(event_context->item_to_select);
} else {
selection->set(event_context->item_to_select);
}
}
} else {
// click in an empty space; do the same as Esc
if (drag->selected) {
drag->deselectAll();
} else {
selection->clear();
}
}
event_context->item_to_select = NULL;
ret = TRUE;
}
Inkscape::Rubberband::get(desktop)->stop();
}
break;
case GDK_KEY_PRESS:
#ifdef DEBUG_MESH
std::cout << "sp_mesh_context_root_handler: GDK_KEY_PRESS" << std::endl;
#endif
// FIXME: tip
switch (get_group0_keyval (&event->key)) {
case GDK_KEY_Alt_L:
case GDK_KEY_Alt_R:
case GDK_KEY_Control_L:
case GDK_KEY_Control_R:
case GDK_KEY_Shift_L:
case GDK_KEY_Shift_R:
case GDK_KEY_Meta_L: // Meta is when you press Shift+Alt (at least on my machine)
case GDK_KEY_Meta_R:
sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,
_("FIXME<b>Ctrl</b>: snap mesh angle"),
_("FIXME<b>Shift</b>: draw mesh around the starting point"),
NULL);
break;
case GDK_KEY_A:
case GDK_KEY_a:
if (MOD__CTRL_ONLY && drag->isNonEmpty()) {
drag->selectAll();
ret = TRUE;
}
break;
case GDK_KEY_Escape:
if (drag->selected) {
drag->deselectAll();
} else {
selection->clear();
}
ret = TRUE;
//TODO: make dragging escapable by Esc
break;
case GDK_KEY_Left: // move handle left
case GDK_KEY_KP_Left:
case GDK_KEY_KP_4:
if (!MOD__CTRL) { // not ctrl
gint mul = 1 + gobble_key_events(
get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT) { // alt
if (MOD__SHIFT) drag->selected_move_screen(mul*-10, 0); // shift
else drag->selected_move_screen(mul*-1, 0); // no shift
}
else { // no alt
if (MOD__SHIFT) drag->selected_move(mul*-10*nudge, 0); // shift
else drag->selected_move(mul*-nudge, 0); // no shift
}
ret = TRUE;
}
break;
case GDK_KEY_Up: // move handle up
case GDK_KEY_KP_Up:
case GDK_KEY_KP_8:
if (!MOD__CTRL) { // not ctrl
gint mul = 1 + gobble_key_events(
get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT) { // alt
if (MOD__SHIFT) drag->selected_move_screen(0, mul*10); // shift
else drag->selected_move_screen(0, mul*1); // no shift
}
else { // no alt
if (MOD__SHIFT) drag->selected_move(0, mul*10*nudge); // shift
else drag->selected_move(0, mul*nudge); // no shift
}
ret = TRUE;
}
break;
case GDK_KEY_Right: // move handle right
case GDK_KEY_KP_Right:
case GDK_KEY_KP_6:
if (!MOD__CTRL) { // not ctrl
gint mul = 1 + gobble_key_events(
get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT) { // alt
if (MOD__SHIFT) drag->selected_move_screen(mul*10, 0); // shift
else drag->selected_move_screen(mul*1, 0); // no shift
}
else { // no alt
if (MOD__SHIFT) drag->selected_move(mul*10*nudge, 0); // shift
else drag->selected_move(mul*nudge, 0); // no shift
}
ret = TRUE;
}
break;
case GDK_KEY_Down: // move handle down
case GDK_KEY_KP_Down:
case GDK_KEY_KP_2:
if (!MOD__CTRL) { // not ctrl
gint mul = 1 + gobble_key_events(
get_group0_keyval(&event->key), 0); // with any mask
if (MOD__ALT) { // alt
if (MOD__SHIFT) drag->selected_move_screen(0, mul*-10); // shift
else drag->selected_move_screen(0, mul*-1); // no shift
}
else { // no alt
if (MOD__SHIFT) drag->selected_move(0, mul*-10*nudge); // shift
else drag->selected_move(0, mul*-nudge); // no shift
}
ret = TRUE;
}
break;
case GDK_KEY_Insert:
case GDK_KEY_KP_Insert:
// with any modifiers:
//sp_gradient_context_add_stops_between_selected_stops (rc);
std::cout << "Inserting stops between selected stops not implemented yet" << std::endl;
ret = TRUE;
break;
case GDK_KEY_Delete:
case GDK_KEY_KP_Delete:
case GDK_KEY_BackSpace:
if ( drag->selected ) {
std::cout << "Deleting mesh stops not implemented yet" << std::endl;
ret = TRUE;
}
break;
// Mesh Operations --------------------------------------------
case GDK_KEY_b: // Toggle mesh side between lineto and curveto.
case GDK_KEY_B:
if (MOD__ALT && drag->isNonEmpty() && drag->hasSelection()) {
sp_mesh_context_corner_operation ( rc, MG_CORNER_SIDE_TOGGLE );
ret = TRUE;
}
break;
case GDK_KEY_c: // Convert mesh side from generic Bezier to Bezier approximating arc,
case GDK_KEY_C: // preserving handle direction.
if (MOD__ALT && drag->isNonEmpty() && drag->hasSelection()) {
sp_mesh_context_corner_operation ( rc, MG_CORNER_SIDE_ARC );
ret = TRUE;
}
break;
case GDK_KEY_g: // Toggle mesh tensor points on/off
case GDK_KEY_G:
if (MOD__ALT && drag->isNonEmpty() && drag->hasSelection()) {
sp_mesh_context_corner_operation ( rc, MG_CORNER_TENSOR_TOGGLE );
ret = TRUE;
}
break;
case GDK_KEY_j: // Smooth corner color
case GDK_KEY_J:
if (MOD__ALT && drag->isNonEmpty() && drag->hasSelection()) {
sp_mesh_context_corner_operation ( rc, MG_CORNER_COLOR_SMOOTH );
ret = TRUE;
}
break;
case GDK_KEY_k: // Pick corner color
case GDK_KEY_K:
if (MOD__ALT && drag->isNonEmpty() && drag->hasSelection()) {
sp_mesh_context_corner_operation ( rc, MG_CORNER_COLOR_PICK );
ret = TRUE;
}
break;
default:
break;
}
break;
case GDK_KEY_RELEASE:
#ifdef DEBUG_MESH
std::cout << "sp_mesh_context_root_handler: GDK_KEY_RELEASE" << std::endl;
#endif
switch (get_group0_keyval (&event->key)) {
case GDK_KEY_Alt_L:
case GDK_KEY_Alt_R:
case GDK_KEY_Control_L:
case GDK_KEY_Control_R:
case GDK_KEY_Shift_L:
case GDK_KEY_Shift_R:
case GDK_KEY_Meta_L: // Meta is when you press Shift+Alt
case GDK_KEY_Meta_R:
event_context->defaultMessageContext()->clear();
break;
default:
break;
}
break;
default:
break;
}
if (!ret) {
if (((SPEventContextClass *) parent_class)->root_handler) {
ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
}
}
return ret;
}
/**
Wrapper for various mesh operations that require a list of selected corner nodes.
*/
static void
sp_mesh_context_corner_operation (SPMeshContext *rc, MeshCornerOperation operation )
{
#ifdef DEBUG_MESH
std::cout << "sp_mesh_corner_operation: entrance: " << operation << std::endl;
#endif
SPDocument *doc = NULL;
GrDrag *drag = rc->_grdrag;
std::map<SPMeshGradient*, std::vector<guint> > points;
std::map<SPMeshGradient*, SPItem*> items;
// Get list of selected draggers for each mesh.
// For all selected draggers
for (GList *i = drag->selected; i != NULL; i = i->next) {
GrDragger *dragger = (GrDragger *) i->data;
// For all draggables of dragger
for (GSList const* j = dragger->draggables; j != NULL; j = j->next) {
GrDraggable *d = (GrDraggable *) j->data;
// Only mesh corners
if( d->point_type != POINT_MG_CORNER ) continue;
// Find the gradient
SPMeshGradient *gradient = SP_MESHGRADIENT( getGradient (d->item, d->fill_or_stroke) );
// Collect points together for same gradient
points[gradient].push_back( d->point_i );
items[gradient] = d->item;
}
}
// Loop over meshes.
for( std::map<SPMeshGradient*, std::vector<guint> >::const_iterator iter = points.begin(); iter != points.end(); ++iter) {
SPMeshGradient *mg = SP_MESHGRADIENT( iter->first );
if( iter->second.size() > 0 ) {
guint noperation = 0;
switch (operation) {
case MG_CORNER_SIDE_TOGGLE:
// std::cout << "SIDE_TOGGLE" << std::endl;
noperation += mg->array.side_toggle( iter->second );
break;
case MG_CORNER_SIDE_ARC:
// std::cout << "SIDE_ARC" << std::endl;
noperation += mg->array.side_arc( iter->second );
break;
case MG_CORNER_TENSOR_TOGGLE:
// std::cout << "TENSOR_TOGGLE" << std::endl;
noperation += mg->array.tensor_toggle( iter->second );
break;
case MG_CORNER_COLOR_SMOOTH:
// std::cout << "COLOR_SMOOTH" << std::endl;
noperation += mg->array.color_smooth( iter->second );
break;
case MG_CORNER_COLOR_PICK:
// std::cout << "COLOR_PICK" << std::endl;
noperation += mg->array.color_pick( iter->second, items[iter->first] );
break;
default:
std::cout << "sp_mesh_corner_operation: unknown operation" << std::endl;
}
if( noperation > 0 ) {
mg->array.write( mg );
mg->requestModified(SP_OBJECT_MODIFIED_FLAG);
doc = mg->document;
switch (operation) {
case MG_CORNER_SIDE_TOGGLE:
DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Toggled mesh path type."));
break;
case MG_CORNER_SIDE_ARC:
DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Approximated arc for mesh side."));
break;
case MG_CORNER_TENSOR_TOGGLE:
DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Toggled mesh tensors."));
break;
case MG_CORNER_COLOR_SMOOTH:
DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Smoothed mesh corner color."));
break;
case MG_CORNER_COLOR_PICK:
DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Picked mesh corner color."));
break;
default:
std::cout << "sp_mesh_corner_operation: unknown operation" << std::endl;
}
}
}
}
drag->updateDraggers();
}
static void
mesh_selection_changed (Inkscape::Selection *, gpointer data)
{
SPMeshContext *rc = (SPMeshContext *) data;
GrDrag *drag = rc->_grdrag;
Inkscape::Selection *selection = sp_desktop_selection(SP_EVENT_CONTEXT(rc)->desktop);
if (selection == NULL) {
return;
}
guint n_obj = g_slist_length((GSList *) selection->itemList());
if (!drag->isNonEmpty() || selection->isEmpty())
return;
guint n_tot = drag->numDraggers();
guint n_sel = drag->numSelected();
//The use of ngettext in the following code is intentional even if the English singular form would never be used
if (n_sel == 1) {
if (drag->singleSelectedDraggerNumDraggables() == 1) {
gchar * message = g_strconcat(
//TRANSLATORS: %s will be substituted with the point name (see previous messages); This is part of a compound message
_("%s selected"),
//TRANSLATORS: Mind the space in front. This is part of a compound message
ngettext(" out of %d mesh handle"," out of %d mesh handles",n_tot),
ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL);
rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,
message,_(ms_handle_descr[drag->singleSelectedDraggerSingleDraggableType()]), n_tot, n_obj);
} else {
gchar * message =
g_strconcat(
//TRANSLATORS: This is a part of a compound message (out of two more indicating: grandint handle count & object count)
ngettext("One handle merging %d stop (drag with <b>Shift</b> to separate) selected",
"One handle merging %d stops (drag with <b>Shift</b> to separate) selected",
drag->singleSelectedDraggerNumDraggables()),
ngettext(" out of %d mesh handle"," out of %d mesh handles",n_tot),
ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL);
rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,message,drag->singleSelectedDraggerNumDraggables(), n_tot, n_obj);
}
} else if (n_sel > 1) {
//TRANSLATORS: The plural refers to number of selected mesh handles. This is part of a compound message (part two indicates selected object count)
gchar * message =
g_strconcat(ngettext("<b>%d</b> mesh handle selected out of %d","<b>%d</b> mesh handles selected out of %d",n_sel),
//TRANSLATORS: Mind the space in front. (Refers to gradient handles selected). This is part of a compound message
ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL);
rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,message, n_sel, n_tot, n_obj);
} else if (n_sel == 0) {
rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,
//TRANSLATORS: The plural refers to number of selected objects
ngettext("<b>No</b> mesh handles selected out of %d on %d selected object",
"<b>No</b> mesh handles selected out of %d on %d selected objects",n_obj), n_tot, n_obj);
}
// FIXME
// We need to update mesh gradient handles.
// Get gradient this drag belongs too..
// std::cout << "mesh_selection_changed: selection: objects: " << n_obj << std::endl;
// GSList *itemList = (GSList *) selection->itemList();
// while( itemList ) {
// SPItem *item = SP_ITEM( itemList->data );
// // std::cout << " item: " << SP_OBJECT(item)->getId() << std::endl;
// SPStyle *style = item->style;
// if (style && (style->fill.isPaintserver())) {
// SPPaintServer *server = item->style->getFillPaintServer();
// if ( SP_IS_MESHGRADIENT(server) ) {
// SPMeshGradient *mg = SP_MESHGRADIENT(server);
// guint rows = 0;//mg->array.patches.size();
// for ( guint i = 0; i < rows; ++i ) {
// guint columns = 0;//mg->array.patches[0].size();
// for ( guint j = 0; j < columns; ++j ) {
// }
// }
// }
// }
// itemList = itemList->next;
// }
// GList* dragger_ptr = drag->draggers; // Points to GrDragger class (group of GrDraggable)
// guint count = 0;
// while( dragger_ptr ) {
// std::cout << "mesh_selection_changed: dragger: " << ++count << std::endl;
// GSList* draggable_ptr = ((GrDragger *) dragger_ptr->data)->draggables;
// while( draggable_ptr ) {
// std::cout << "mesh_selection_changed: draggable: " << draggable_ptr << std::endl;
// GrDraggable *draggable = (GrDraggable *) draggable_ptr->data;
// gint point_type = draggable->point_type;
// gint point_i = draggable->point_i;
// bool fill_or_stroke = draggable->fill_or_stroke;
// if( point_type == POINT_MG_CORNER ) {
// //std::cout << "mesh_selection_changed: POINT_MG_CORNER: " << point_i << std::endl;
// // Now we must create or destroy corresponding handles.
// if( g_list_find( drag->selected, dragger_ptr->data ) ) {
// //std::cout << "gradient_selection_changed: Selected: " << point_i << std::endl;
// // Which meshes does this point belong to?
// } else {
// //std::cout << "mesh_selection_changed: Not Selected: " << point_i << std::endl;
// }
// }
// draggable_ptr = draggable_ptr->next;
// }
// dragger_ptr = dragger_ptr->next;
// }
}