static gint sp_box3d_context_root_handler(SPEventContext *event_context, GdkEvent *event)
{
static bool dragging;
SPDesktop *desktop = event_context->desktop;
SPDocument *document = sp_desktop_document (desktop);
Inkscape::Selection *selection = sp_desktop_selection (desktop);
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);
Box3DContext *bc = SP_BOX3D_CONTEXT(event_context);
Persp3D *cur_persp = document->getCurrentPersp3D();
event_context->tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
gint ret = FALSE;
switch (event->type) {
case GDK_BUTTON_PRESS:
if ( event->button.button == 1 && !event_context->space_panning) {
Geom::Point const 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;
// remember clicked item, *not* disregarding groups (since a 3D box is a group), honoring Alt
event_context->item_to_select = sp_event_context_find_item (desktop, button_w, event->button.state & GDK_MOD1_MASK, event->button.state & GDK_CONTROL_MASK);
dragging = true;
/* */
Geom::Point button_dt(desktop->w2d(button_w));
bc->drag_origin = from_2geom(button_dt);
bc->drag_ptB = from_2geom(button_dt);
bc->drag_ptC = from_2geom(button_dt);
// This can happen after saving when the last remaining perspective was purged and must be recreated.
if (!cur_persp) {
sp_box3d_context_ensure_persp_in_defs(document);
cur_persp = document->getCurrentPersp3D();
}
/* Projective preimages of clicked point under current perspective */
bc->drag_origin_proj = cur_persp->perspective_impl->tmat.preimage (from_2geom(button_dt), 0, Proj::Z);
bc->drag_ptB_proj = bc->drag_origin_proj;
bc->drag_ptC_proj = bc->drag_origin_proj;
bc->drag_ptC_proj.normalize();
bc->drag_ptC_proj[Proj::Z] = 0.25;
/* Snap center */
SnapManager &m = desktop->namedview->snap_manager;
m.setup(desktop, true, bc->item);
m.freeSnapReturnByRef(button_dt, Inkscape::SNAPSOURCE_NODE_HANDLE);
bc->center = from_2geom(button_dt);
sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
( GDK_KEY_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON_PRESS_MASK ),
NULL, event->button.time);
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 motion_dt(desktop->w2d(motion_w));
SnapManager &m = desktop->namedview->snap_manager;
m.setup(desktop, true, bc->item);
m.freeSnapReturnByRef(motion_dt, Inkscape::SNAPSOURCE_NODE_HANDLE);
bc->ctrl_dragged = event->motion.state & GDK_CONTROL_MASK;
if (event->motion.state & GDK_SHIFT_MASK && !bc->extruded && bc->item) {
// once shift is pressed, set bc->extruded
bc->extruded = true;
}
if (!bc->extruded) {
bc->drag_ptB = from_2geom(motion_dt);
bc->drag_ptC = from_2geom(motion_dt);
bc->drag_ptB_proj = cur_persp->perspective_impl->tmat.preimage (from_2geom(motion_dt), 0, Proj::Z);
bc->drag_ptC_proj = bc->drag_ptB_proj;
bc->drag_ptC_proj.normalize();
bc->drag_ptC_proj[Proj::Z] = 0.25;
} else {
// Without Ctrl, motion of the extruded corner is constrained to the
// perspective line from drag_ptB to vanishing point Y.
if (!bc->ctrl_dragged) {
/* snapping */
Box3D::PerspectiveLine pline (bc->drag_ptB, Proj::Z, document->getCurrentPersp3D());
bc->drag_ptC = pline.closest_to (from_2geom(motion_dt));
bc->drag_ptB_proj.normalize();
bc->drag_ptC_proj = cur_persp->perspective_impl->tmat.preimage (bc->drag_ptC, bc->drag_ptB_proj[Proj::X], Proj::X);
} else {
bc->drag_ptC = from_2geom(motion_dt);
bc->drag_ptB_proj.normalize();
bc->drag_ptC_proj = cur_persp->perspective_impl->tmat.preimage (from_2geom(motion_dt), bc->drag_ptB_proj[Proj::X], Proj::X);
}
m.freeSnapReturnByRef(bc->drag_ptC, Inkscape::SNAPSOURCE_NODE_HANDLE);
}
sp_box3d_drag(*bc, event->motion.state);
ret = TRUE;
} else if (!sp_event_context_knot_mouseover(bc)) {
SnapManager &m = desktop->namedview->snap_manager;
m.setup(desktop);
Geom::Point const motion_w(event->motion.x, event->motion.y);
Geom::Point motion_dt(desktop->w2d(motion_w));
m.preSnap(Inkscape::SnapCandidatePoint(motion_dt, Inkscape::SNAPSOURCE_NODE_HANDLE));
}
break;
case GDK_BUTTON_RELEASE:
event_context->xp = event_context->yp = 0;
if ( event->button.button == 1 && !event_context->space_panning) {
dragging = false;
sp_event_context_discard_delayed_snap_event(event_context);
if (!event_context->within_tolerance) {
// we've been dragging, finish the box
sp_box3d_finish(bc);
} 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
selection->clear();
}
event_context->item_to_select = NULL;
ret = TRUE;
sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
event->button.time);
}
break;
case GDK_KEY_PRESS:
switch (get_group0_keyval (&event->key)) {
case GDK_Up:
case GDK_Down:
case GDK_KP_Up:
case GDK_KP_Down:
// prevent the zoom field from activation
if (!MOD__CTRL_ONLY)
ret = TRUE;
break;
case GDK_bracketright:
persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::X, -180/snaps, MOD__ALT);
sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
_("Change perspective (angle of PLs)"));
ret = true;
break;
case GDK_bracketleft:
persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::X, 180/snaps, MOD__ALT);
sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
_("Change perspective (angle of PLs)"));
ret = true;
break;
case GDK_parenright:
persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Y, -180/snaps, MOD__ALT);
sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
_("Change perspective (angle of PLs)"));
ret = true;
break;
case GDK_parenleft:
persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Y, 180/snaps, MOD__ALT);
sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
_("Change perspective (angle of PLs)"));
ret = true;
break;
case GDK_braceright:
persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Z, -180/snaps, MOD__ALT);
sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
_("Change perspective (angle of PLs)"));
ret = true;
break;
case GDK_braceleft:
persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Z, 180/snaps, MOD__ALT);
sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
_("Change perspective (angle of PLs)"));
ret = true;
break;
/* TODO: what is this???
case GDK_O:
if (MOD__CTRL && MOD__SHIFT) {
Box3D::create_canvas_point(persp3d_get_VP(document()->getCurrentPersp3D(), Proj::W).affine(),
6, 0xff00ff00);
}
ret = true;
break;
*/
case GDK_g:
case GDK_G:
if (MOD__SHIFT_ONLY) {
sp_selection_to_guides(desktop);
ret = true;
}
break;
case GDK_p:
case GDK_P:
if (MOD__SHIFT_ONLY) {
if (document->getCurrentPersp3D()) {
persp3d_print_debugging_info (document->getCurrentPersp3D());
}
ret = true;
}
break;
case GDK_x:
case GDK_X:
if (MOD__ALT_ONLY) {
desktop->setToolboxFocusTo ("altx-box3d");
ret = TRUE;
}
if (MOD__SHIFT_ONLY) {
persp3d_toggle_VPs(selection->perspList(), Proj::X);
bc->_vpdrag->updateLines(); // FIXME: Shouldn't this be done automatically?
ret = true;
}
break;
case GDK_y:
case GDK_Y:
if (MOD__SHIFT_ONLY) {
persp3d_toggle_VPs(selection->perspList(), Proj::Y);
bc->_vpdrag->updateLines(); // FIXME: Shouldn't this be done automatically?
ret = true;
}
break;
case GDK_z:
case GDK_Z:
if (MOD__SHIFT_ONLY) {
persp3d_toggle_VPs(selection->perspList(), Proj::Z);
bc->_vpdrag->updateLines(); // FIXME: Shouldn't this be done automatically?
ret = true;
}
break;
case GDK_Escape:
sp_desktop_selection(desktop)->clear();
//TODO: make dragging escapable by Esc
break;
case GDK_space:
if (dragging) {
sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
event->button.time);
dragging = false;
sp_event_context_discard_delayed_snap_event(event_context);
if (!event_context->within_tolerance) {
// we've been dragging, finish the box
sp_box3d_finish(bc);
}
// do not return true, so that space would work switching to selector
}
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_spiral_drag(SPSpiralContext *sc, Geom::Point p, guint state)
{
SPDesktop *desktop = SP_EVENT_CONTEXT(sc)->desktop;
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);
if (!sc->item) {
if (Inkscape::have_viable_layer(desktop, sc->_message_context) == false) {
return;
}
/* Create object */
Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_EVENT_CONTEXT_DOCUMENT(sc));
Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
repr->setAttribute("sodipodi:type", "spiral");
/* Set style */
sp_desktop_apply_style_tool(desktop, repr, "/tools/shapes/spiral", false);
sc->item = (SPItem *) desktop->currentLayer()->appendChildRepr(repr);
Inkscape::GC::release(repr);
sc->item->transform = sp_item_i2doc_affine(SP_ITEM(desktop->currentLayer())).inverse();
sc->item->updateRepr();
sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
}
SnapManager &m = desktop->namedview->snap_manager;
m.setup(desktop, true, sc->item);
Geom::Point pt2g = to_2geom(p);
m.freeSnapReturnByRef(Inkscape::SnapPreferences::SNAPPOINT_NODE, pt2g);
Geom::Point const p0 = to_2geom(sp_desktop_dt2doc_xy_point(desktop, sc->center));
Geom::Point const p1 = to_2geom(sp_desktop_dt2doc_xy_point(desktop, from_2geom(pt2g)));
SPSpiral *spiral = SP_SPIRAL(sc->item);
Geom::Point const delta = p1 - p0;
gdouble const rad = Geom::L2(delta);
gdouble arg = Geom::atan2(delta) - 2.0*M_PI*spiral->revo;
if (state & GDK_CONTROL_MASK) {
arg = sp_round(arg, M_PI/snaps);
}
/* Fixme: these parameters should be got from dialog box */
sp_spiral_position_set(spiral, p0[Geom::X], p0[Geom::Y],
/*expansion*/ sc->exp,
/*revolution*/ sc->revo,
rad, arg,
/*t0*/ sc->t0);
/* status text */
GString *rads = SP_PX_TO_METRIC_STRING(rad, desktop->namedview->getDefaultMetric());
sc->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE,
_("<b>Spiral</b>: radius %s, angle %5g°; with <b>Ctrl</b> to snap angle"),
rads->str, sp_round((arg + 2.0*M_PI*spiral->revo)*180/M_PI, 0.0001));
g_string_free(rads, FALSE);
}
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 gint
sp_spiral_context_root_handler(SPEventContext *event_context, GdkEvent *event)
{
static gboolean dragging;
SPDesktop *desktop = event_context->desktop;
Inkscape::Selection *selection = sp_desktop_selection (desktop);
SPSpiralContext *sc = SP_SPIRAL_CONTEXT(event_context);
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
event_context->tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
gint ret = FALSE;
switch (event->type) {
case GDK_BUTTON_PRESS:
if (event->button.button == 1 && !event_context->space_panning) {
dragging = TRUE;
sc->center = Inkscape::setup_for_drag_start(desktop, event_context, event);
SnapManager &m = desktop->namedview->snap_manager;
m.setup(desktop);
Geom::Point pt2g = to_2geom(sc->center);
m.freeSnapReturnByRef(Inkscape::SnapPreferences::SNAPPOINT_NODE, pt2g);
sc->center = from_2geom(pt2g);
sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
( GDK_KEY_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON_PRESS_MASK ),
NULL, event->button.time);
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 motion_dt(event_context->desktop->w2d(motion_w));
SnapManager &m = desktop->namedview->snap_manager;
m.setup(desktop, true, sc->item);
m.freeSnapReturnByRef(Inkscape::SnapPreferences::SNAPPOINT_NODE, motion_dt);
sp_spiral_drag(sc, from_2geom(motion_dt), event->motion.state);
gobble_motion_events(GDK_BUTTON1_MASK);
ret = TRUE;
}
break;
case GDK_BUTTON_RELEASE:
event_context->xp = event_context->yp = 0;
if (event->button.button == 1 && !event_context->space_panning) {
dragging = FALSE;
if (!event_context->within_tolerance) {
// we've been dragging, finish the spiral
sp_spiral_finish(sc);
} 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
selection->clear();
}
event_context->item_to_select = NULL;
ret = TRUE;
sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), event->button.time);
}
break;
case GDK_KEY_PRESS:
switch (get_group0_keyval(&event->key)) {
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 angle"),
NULL,
_("<b>Alt</b>: lock spiral radius"));
break;
case GDK_Up:
case GDK_Down:
case GDK_KP_Up:
case GDK_KP_Down:
// prevent the zoom field from activation
if (!MOD__CTRL_ONLY)
ret = TRUE;
break;
case GDK_x:
case GDK_X:
if (MOD__ALT_ONLY) {
desktop->setToolboxFocusTo ("altx-spiral");
ret = TRUE;
}
break;
case GDK_Escape:
sp_desktop_selection(desktop)->clear();
//TODO: make dragging escapable by Esc
break;
case GDK_space:
if (dragging) {
sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
event->button.time);
dragging = false;
if (!event_context->within_tolerance) {
// we've been dragging, finish the rect
sp_spiral_finish(sc);
}
// do not return true, so that space would work switching to selector
}
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;
}
