Пример #1
0
static void
pencil_cancel (SPPencilContext *const pc) 
{
    if (pc->grab) {
        /* Release grab now */
        sp_canvas_item_ungrab(pc->grab, 0);
        pc->grab = NULL;
    }

    pc->is_drawing = false;

    pc->state = SP_PENCIL_CONTEXT_IDLE;

    pc->red_curve->reset();
    sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(pc->red_bpath), NULL);
    while (pc->green_bpaths) {
        gtk_object_destroy(GTK_OBJECT(pc->green_bpaths->data));
        pc->green_bpaths = g_slist_remove(pc->green_bpaths, pc->green_bpaths->data);
    }
    pc->green_curve->reset();
    if (pc->green_anchor) {
        pc->green_anchor = sp_draw_anchor_destroy(pc->green_anchor);
    }

    pc->_message_context->clear();
    pc->_message_context->flash(Inkscape::NORMAL_MESSAGE, _("Drawing cancelled"));

    sp_canvas_end_forced_full_redraws(pc->desktop->canvas);
}
Пример #2
0
void ZoomTool::finish() {
	this->enableGrDrag(false);
	
    if (this->grabbed) {
        sp_canvas_item_ungrab(this->grabbed, GDK_CURRENT_TIME);
        this->grabbed = NULL;
    }
}
Пример #3
0
static gint
sp_star_context_root_handler (SPEventContext * event_context, GdkEvent * event)
{
	static gboolean dragging;
	SPStarContext * sc;
	gint ret;
	SPDesktop * desktop;

	desktop = event_context->desktop;
	sc = SP_STAR_CONTEXT (event_context);
	ret = FALSE;

	switch (event->type) {
	case GDK_BUTTON_PRESS:
		if (event->button.button == 1) {
			NRPointF fp;
			dragging = TRUE;
			/* Position center */
			sp_desktop_w2d_xy_point (event_context->desktop, &fp, event->button.x, event->button.y);
			sc->center.x = fp.x;
			sc->center.y = fp.y;
			/* Snap center to nearest magnetic point */
			sp_desktop_free_snap (event_context->desktop, &sc->center);
			sp_canvas_item_grab (SP_CANVAS_ITEM (desktop->acetate),
						GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK,
						NULL, event->button.time);
			ret = TRUE;
		}
		break;
	case GDK_MOTION_NOTIFY:
		if (dragging && (event->motion.state & GDK_BUTTON1_MASK)) {
			NRPointF p;
			sp_desktop_w2d_xy_point (event_context->desktop, &p, event->motion.x, event->motion.y);
			sp_star_drag (sc, p.x, p.y, event->motion.state);
			ret = TRUE;
		}
		break;
	case GDK_BUTTON_RELEASE:
		if (event->button.button == 1) {
			dragging = FALSE;
			sp_star_finish (sc);
			ret = TRUE;
			sp_canvas_item_ungrab (SP_CANVAS_ITEM (desktop->acetate), event->button.time);
		}
		break;
	default:
		break;
	}

	if (!ret) {
		if (((SPEventContextClass *) parent_class)->root_handler)
			ret = ((SPEventContextClass *) parent_class)->root_handler (event_context, event);
	}

	return ret;
}
Пример #4
0
static void
sp_zoom_context_finish (SPEventContext *ec)
{
	SPZoomContext *zc = SP_ZOOM_CONTEXT(ec);
	
	ec->enableGrDrag(false);
	
    if (zc->grabbed) {
        sp_canvas_item_ungrab(zc->grabbed, GDK_CURRENT_TIME);
        zc->grabbed = NULL;
    }
}
Пример #5
0
static void sp_box3d_context_finish(SPEventContext *ec)
{
    Box3DContext *bc = SP_BOX3D_CONTEXT(ec);
    SPDesktop *desktop = ec->desktop;

    sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), GDK_CURRENT_TIME);
    sp_box3d_finish(bc);
    bc->sel_changed_connection.disconnect();
//    sp_repr_remove_listener_by_data(cc->active_shape_repr, cc);

    if (((SPEventContextClass *) parent_class)->finish) {
        ((SPEventContextClass *) parent_class)->finish(ec);
    }
}
Пример #6
0
static void
sp_draw_context_finish (SPEventContext *ec)
{
	SPDrawContext *dc;

	dc = SP_DRAW_CONTEXT (ec);

	if (dc->grab) {
		sp_canvas_item_ungrab (dc->grab, GDK_CURRENT_TIME);
	}

	if (dc->selection) {
		sp_signal_disconnect_by_data (dc->selection, dc);
		dc->selection = NULL;
	}

	spdc_free_colors (dc);
}
Пример #7
0
static void
sp_select_context_dispose(GObject *object)
{
    SPSelectContext *sc = SP_SELECT_CONTEXT(object);
    SPEventContext * ec = SP_EVENT_CONTEXT (object);

    ec->enableGrDrag(false);

    if (sc->grabbed) {
        sp_canvas_item_ungrab(sc->grabbed, GDK_CURRENT_TIME);
        sc->grabbed = NULL;
    }

    delete sc->_seltrans;
    sc->_seltrans = NULL;
    delete sc->_describer;
    sc->_describer = NULL;

    G_OBJECT_CLASS(parent_class)->dispose(object);
}
Пример #8
0
static void
sp_draw_context_dispose (GObject *object)
{
	SPDrawContext *dc;

	dc = SP_DRAW_CONTEXT (object);

	if (dc->grab) {
		sp_canvas_item_ungrab (dc->grab, GDK_CURRENT_TIME);
		dc->grab = NULL;
	}

	if (dc->selection) {
		sp_signal_disconnect_by_data (dc->selection, dc);
		dc->selection = NULL;
	}

	spdc_free_colors (dc);

	G_OBJECT_CLASS (draw_parent_class)->dispose (object);
}
Пример #9
0
static gint
sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event)
{
    SPItem *item = NULL;
    SPItem *item_at_point = NULL, *group_at_point = NULL, *item_in_group = NULL;
    gint ret = FALSE;

    SPDesktop *desktop = event_context->desktop;
    SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
    Inkscape::SelTrans *seltrans = sc->_seltrans;
    Inkscape::Selection *selection = sp_desktop_selection(desktop);
    Inkscape::Preferences *prefs = Inkscape::Preferences::get();

    // make sure we still have valid objects to move around
    if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
        sp_select_context_abort(event_context);
    }

    switch (event->type) {
        case GDK_2BUTTON_PRESS:
            if (event->button.button == 1) {
                if (!selection->isEmpty()) {
                    SPItem *clicked_item = (SPItem *) selection->itemList()->data;
                    if (SP_IS_GROUP(clicked_item) && !SP_IS_BOX3D(clicked_item)) { // enter group if it's not a 3D box
                        desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
                        sp_desktop_selection(desktop)->clear();
                        sc->dragging = false;
                        sp_event_context_discard_delayed_snap_event(event_context);

                        desktop->canvas->end_forced_full_redraws();
                    } else { // switch tool
                        Geom::Point const button_pt(event->button.x, event->button.y);
                        Geom::Point const p(desktop->w2d(button_pt));
                        tools_switch_by_item (desktop, clicked_item, p);
                    }
                } else {
                    sp_select_context_up_one_layer(desktop);
                }
                ret = TRUE;
            }
            break;
        case GDK_BUTTON_PRESS:
            if (event->button.button == 1 && !event_context->space_panning) {

                // save drag origin
                xp = (gint) event->button.x;
                yp = (gint) event->button.y;
                within_tolerance = true;

                Geom::Point const button_pt(event->button.x, event->button.y);
                Geom::Point const p(desktop->w2d(button_pt));
                if (event->button.state & GDK_MOD1_MASK)
                    Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
                Inkscape::Rubberband::get(desktop)->start(desktop, p);
                if (sc->grabbed) {
                    sp_canvas_item_ungrab(sc->grabbed, event->button.time);
                    sc->grabbed = NULL;
                }
                sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
                                    GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK,
                                    NULL, event->button.time);
                sc->grabbed = SP_CANVAS_ITEM(desktop->acetate);

                // remember what modifiers were on before button press
                sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
                sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
                sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;

                sc->moved = FALSE;

                rb_escaped = drag_escaped = 0;

                ret = TRUE;
            } else if (event->button.button == 3) {
                // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
                sp_select_context_abort(event_context);
            }
            break;

        case GDK_MOTION_NOTIFY:
        	tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
        	if (event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {
                Geom::Point const motion_pt(event->motion.x, event->motion.y);
                Geom::Point const p(desktop->w2d(motion_pt));

                if ( within_tolerance
                     && ( abs( (gint) event->motion.x - xp ) < tolerance )
                     && ( abs( (gint) event->motion.y - yp ) < 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 move the object, not click), then always process the
                // motion notify coordinates as given (no snapping back to origin)
                within_tolerance = false;

                if (sc->button_press_ctrl || (sc->button_press_alt && !sc->button_press_shift && !selection->isEmpty())) {
                    // if it's not click and ctrl or alt was pressed (the latter with some selection
                    // but not with shift) we want to drag rather than rubberband
                  	sc->dragging = TRUE;
                    desktop->setCursor(SP_SELECT_D_CURSOR);
                    
                    desktop->canvas->force_full_redraw_after_interruptions(5);
                }

                if (sc->dragging) {
                    /* User has dragged fast, so we get events on root (lauris)*/
                    // not only that; we will end up here when ctrl-dragging as well
                    // and also when we started within tolerance, but trespassed tolerance outside of item
                    Inkscape::Rubberband::get(desktop)->stop();
                    SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
                    item_at_point = desktop->item_at_point(Geom::Point(event->button.x, event->button.y), FALSE);
                    if (!item_at_point) // if no item at this point, try at the click point (bug 1012200)
                        item_at_point = desktop->item_at_point(Geom::Point(xp, yp), FALSE);
                    if (item_at_point || sc->moved || sc->button_press_alt) {
                        // drag only if starting from an item, or if something is already grabbed, or if alt-dragging
                        if (!sc->moved) {
                            item_in_group = desktop->item_at_point(Geom::Point(event->button.x, event->button.y), TRUE);
                            group_at_point = desktop->group_at_point(Geom::Point(event->button.x, event->button.y));
                            if (SP_IS_LAYER(selection->single()))
                                group_at_point = SP_GROUP(selection->single());

                            // group-at-point is meant to be topmost item if it's a group,
                            // not topmost group of all items at point
                            if (group_at_point != item_in_group &&
                                !(group_at_point && item_at_point &&
                                  group_at_point->isAncestorOf(item_at_point)))
                                group_at_point = NULL;

                            // if neither a group nor an item (possibly in a group) at point are selected, set selection to the item at point
                            if ((!item_in_group || !selection->includes(item_in_group)) &&
                                (!group_at_point || !selection->includes(group_at_point))
                                && !sc->button_press_alt) {
                                // select what is under cursor
                                if (!seltrans->isEmpty()) {
                                    seltrans->resetState();
                                }
                                // when simply ctrl-dragging, we don't want to go into groups
                                if (item_at_point && !selection->includes(item_at_point))
                                    selection->set(item_at_point);
                            } // otherwise, do not change selection so that dragging selected-within-group items, as well as alt-dragging, is possible
                            seltrans->grab(p, -1, -1, FALSE, TRUE);
                            sc->moved = TRUE;
                        }
                        if (!seltrans->isEmpty())
                            seltrans->moveTo(p, event->button.state);
                        desktop->scroll_to_point(p);
                        gobble_motion_events(GDK_BUTTON1_MASK);
                        ret = TRUE;
                    } else {
                        sc->dragging = FALSE;
                        sp_event_context_discard_delayed_snap_event(event_context);
                        desktop->canvas->end_forced_full_redraws();
                    }
                } else {
                    if (Inkscape::Rubberband::get(desktop)->is_started()) {
                        Inkscape::Rubberband::get(desktop)->move(p);
                        if (Inkscape::Rubberband::get(desktop)->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
                            event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> objects to select them; release <b>Alt</b> to switch to rubberband selection"));
                        } else {
                            event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Drag around</b> objects to select them; press <b>Alt</b> to switch to touch selection"));
                        }
                        gobble_motion_events(GDK_BUTTON1_MASK);
                    }
                }
            }
            break;
        case GDK_BUTTON_RELEASE:
            xp = yp = 0;
            if ((event->button.button == 1) && (sc->grabbed) && !event_context->space_panning) {
                if (sc->dragging) {
                    if (sc->moved) {
                        // item has been moved
                        seltrans->ungrab();
                        sc->moved = FALSE;
                    } else if (sc->item && !drag_escaped) {
                        // item has not been moved -> simply a click, do selecting
                        if (!selection->isEmpty()) {
                            if (event->button.state & GDK_SHIFT_MASK) {
                                // with shift, toggle selection
                                seltrans->resetState();
                                selection->toggle(sc->item);
                            } else {
                                SPObject* single = selection->single();
                                // without shift, increase state (i.e. toggle scale/rotation handles)
                                if (selection->includes(sc->item)) {
                                    seltrans->increaseState();
                                } else if (SP_IS_LAYER(single) && single->isAncestorOf(sc->item)) {
                                    seltrans->increaseState();
                                } else {
                                    seltrans->resetState();
                                    selection->set(sc->item);
                                }
                            }
                        } else { // simple or shift click, no previous selection
                            seltrans->resetState();
                            selection->set(sc->item);
                        }
                    }
                    sc->dragging = FALSE;
                    desktop->setCursor(SP_SELECT_CURSOR);
                    sp_event_context_discard_delayed_snap_event(event_context);
                    desktop->canvas->end_forced_full_redraws();

                    if (sc->item) {
                        sp_object_unref( SP_OBJECT(sc->item), NULL);
                    }
                    sc->item = NULL;
                } else {
                    Inkscape::Rubberband *r = Inkscape::Rubberband::get(desktop);
                    if (r->is_started() && !within_tolerance) {
                        // this was a rubberband drag
                        GSList *items = NULL;
                        if (r->getMode() == RUBBERBAND_MODE_RECT) {
                            Geom::OptRect const b = r->getRectangle();
                            items = sp_document_items_in_box(sp_desktop_document(desktop), desktop->dkey, *b);
                        } else if (r->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
                            items = sp_document_items_at_points(sp_desktop_document(desktop), desktop->dkey, r->getPoints());
                        }

                        seltrans->resetState();
                        r->stop();
                        SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();

                        if (event->button.state & GDK_SHIFT_MASK) {
                            // with shift, add to selection
                            selection->addList (items);
                        } else {
                            // without shift, simply select anew
                            selection->setList (items);
                        }
                        g_slist_free (items);
                    } else { // it was just a click, or a too small rubberband
                        r->stop();
                        if (sc->button_press_shift && !rb_escaped && !drag_escaped) {
                            // this was a shift+click or alt+shift+click, select what was clicked upon

                            sc->button_press_shift = false;

                            if (sc->button_press_ctrl) {
                                // go into groups, honoring Alt
                                item = sp_event_context_find_item (desktop,
                                                   Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, TRUE);
                                sc->button_press_ctrl = FALSE;
                            } else {
                                // don't go into groups, honoring Alt
                                item = sp_event_context_find_item (desktop,
                                                   Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
                            }

                            if (item) {
                                selection->toggle(item);
                                item = NULL;
                            }

                        } else if ((sc->button_press_ctrl || sc->button_press_alt) && !rb_escaped && !drag_escaped) { // ctrl+click, alt+click

                            item = sp_event_context_find_item (desktop,
                                         Geom::Point(event->button.x, event->button.y), sc->button_press_alt, sc->button_press_ctrl);

                            sc->button_press_ctrl = FALSE;
                            sc->button_press_alt = FALSE;

                            if (item) {
                                if (selection->includes(item)) {
                                    seltrans->increaseState();
                                } else {
                                    seltrans->resetState();
                                    selection->set(item);
                                }
                                item = NULL;
                            }

                        } else { // click without shift, simply deselect, unless with Alt or something was cancelled
                            if (!selection->isEmpty()) {
                                if (!(rb_escaped) && !(drag_escaped) && !(event->button.state & GDK_MOD1_MASK))
                                    selection->clear();
                                rb_escaped = 0;
                                ret = TRUE;
                            }
                        }
                    }
                    ret = TRUE;
                }
                if (sc->grabbed) {
                    sp_canvas_item_ungrab(sc->grabbed, event->button.time);
                    sc->grabbed = NULL;
                }

                desktop->updateNow();
            }
            if (event->button.button == 1) {
                Inkscape::Rubberband::get(desktop)->stop(); // might have been started in another tool!
            }
            sc->button_press_shift = false;
            sc->button_press_ctrl = false;
            sc->button_press_alt = false;
            break;

        case GDK_KEY_PRESS: // keybindings for select context

			{
			{
        	guint keyval = get_group0_keyval(&event->key);
            bool alt = ( MOD__ALT
                                    || (keyval == GDK_Alt_L)
                                    || (keyval == GDK_Alt_R)
                                    || (keyval == GDK_Meta_L)
                                    || (keyval == GDK_Meta_R));

            if (!key_is_a_modifier (keyval)) {
                    event_context->defaultMessageContext()->clear();
            } else if (sc->grabbed || seltrans->isGrabbed()) {
                if (Inkscape::Rubberband::get(desktop)->is_started()) {
                    // if Alt then change cursor to moving cursor:
                    if (alt) {
                        Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
                    }
                } else {
                // do not change the statusbar text when mousekey is down to move or transform the object,
                // because the statusbar text is already updated somewhere else.
                   break;
                }
            } else {
                    sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,
                                                _("<b>Ctrl</b>: click to select in groups; drag to move hor/vert"),
                                                _("<b>Shift</b>: click to toggle select; drag for rubberband selection"),
                                                _("<b>Alt</b>: click to select under; drag to move selected or select by touch"));
                    // if Alt and nonempty selection, show moving cursor ("move selected"):
                    if (alt && !selection->isEmpty() && !desktop->isWaitingCursor()) {
                        desktop->setCursor(SP_SELECT_D_CURSOR);
                    }
                    //*/
                    break;
            }
			}

            gdouble const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000); // in px
			gdouble const offset = prefs->getDoubleLimited("/options/defaultscale/value", 2, 0, 1000);
			int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);

			switch (get_group0_keyval (&event->key)) {
                case GDK_Left: // move selection 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) sp_selection_move_screen(desktop, mul*-10, 0); // shift
                            else sp_selection_move_screen(desktop, mul*-1, 0); // no shift
                        }
                        else { // no alt
                            if (MOD__SHIFT) sp_selection_move(desktop, mul*-10*nudge, 0); // shift
                            else sp_selection_move(desktop, mul*-nudge, 0); // no shift
                        }
                        ret = TRUE;
                    }
                    break;
                case GDK_Up: // move selection 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) sp_selection_move_screen(desktop, 0, mul*10); // shift
                            else sp_selection_move_screen(desktop, 0, mul*1); // no shift
                        }
                        else { // no alt
                            if (MOD__SHIFT) sp_selection_move(desktop, 0, mul*10*nudge); // shift
                            else sp_selection_move(desktop, 0, mul*nudge); // no shift
                        }
                        ret = TRUE;
                    }
                    break;
                case GDK_Right: // move selection 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) sp_selection_move_screen(desktop, mul*10, 0); // shift
                            else sp_selection_move_screen(desktop, mul*1, 0); // no shift
                        }
                        else { // no alt
                            if (MOD__SHIFT) sp_selection_move(desktop, mul*10*nudge, 0); // shift
                            else sp_selection_move(desktop, mul*nudge, 0); // no shift
                        }
                        ret = TRUE;
                    }
                    break;
                case GDK_Down: // move selection 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) sp_selection_move_screen(desktop, 0, mul*-10); // shift
                            else sp_selection_move_screen(desktop, 0, mul*-1); // no shift
                        }
                        else { // no alt
                            if (MOD__SHIFT) sp_selection_move(desktop, 0, mul*-10*nudge); // shift
                            else sp_selection_move(desktop, 0, mul*-nudge); // no shift
                        }
                        ret = TRUE;
                    }
                    break;
                case GDK_Escape:
                    if (!sp_select_context_abort(event_context))
                        selection->clear();
                    ret = TRUE;
                    break;
                case GDK_a:
                case GDK_A:
                    if (MOD__CTRL_ONLY) {
                        sp_edit_select_all(desktop);
                        ret = TRUE;
                    }
                    break;
                case GDK_space:
                    /* stamping mode: show outline mode moving */
                    /* FIXME: Is next condition ok? (lauris) */
                    if (sc->dragging && sc->grabbed) {
                        seltrans->stamp();
                        ret = TRUE;
                    }
                    break;
                case GDK_x:
                case GDK_X:
                    if (MOD__ALT_ONLY) {
                        desktop->setToolboxFocusTo ("altx");
                        ret = TRUE;
                    }
                    break;
                case GDK_bracketleft:
                    if (MOD__ALT) {
                        gint mul = 1 + gobble_key_events(
                            get_group0_keyval(&event->key), 0); // with any mask
                        sp_selection_rotate_screen(selection, mul*1);
                    } else if (MOD__CTRL) {
                        sp_selection_rotate(selection, 90);
                    } else if (snaps) {
                        sp_selection_rotate(selection, 180.0/snaps);
                    }
                    ret = TRUE;
                    break;
                case GDK_bracketright:
                    if (MOD__ALT) {
                        gint mul = 1 + gobble_key_events(
                            get_group0_keyval(&event->key), 0); // with any mask
                        sp_selection_rotate_screen(selection, -1*mul);
                    } else if (MOD__CTRL) {
                        sp_selection_rotate(selection, -90);
                    } else if (snaps) {
                        sp_selection_rotate(selection, -180.0/snaps);
                    }
                    ret = TRUE;
                    break;
                case GDK_less:
                case GDK_comma:
                    if (MOD__ALT) {
                        gint mul = 1 + gobble_key_events(
                            get_group0_keyval(&event->key), 0); // with any mask
                        sp_selection_scale_screen(selection, -2*mul);
                    } else if (MOD__CTRL) {
                        sp_selection_scale_times(selection, 0.5);
                    } else {
                        gint mul = 1 + gobble_key_events(
                            get_group0_keyval(&event->key), 0); // with any mask
                        sp_selection_scale(selection, -offset*mul);
                    }
                    ret = TRUE;
                    break;
                case GDK_greater:
                case GDK_period:
                    if (MOD__ALT) {
                        gint mul = 1 + gobble_key_events(
                            get_group0_keyval(&event->key), 0); // with any mask
                        sp_selection_scale_screen(selection, 2*mul);
                    } else if (MOD__CTRL) {
                        sp_selection_scale_times(selection, 2);
                    } else {
                        gint mul = 1 + gobble_key_events(
                            get_group0_keyval(&event->key), 0); // with any mask
                        sp_selection_scale(selection, offset*mul);
                    }
                    ret = TRUE;
                    break;
                case GDK_Return:
                    if (MOD__CTRL_ONLY) {
                        if (selection->singleItem()) {
                            SPItem *clicked_item = selection->singleItem();
                            if ( SP_IS_GROUP(clicked_item) ||
                                 SP_IS_BOX3D(clicked_item)) { // enter group or a 3D box
                                desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
                                sp_desktop_selection(desktop)->clear();
                            } else {
                                SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selected object is not a group. Cannot enter."));
                            }
                        }
                        ret = TRUE;
                    }
                    break;
                case GDK_BackSpace:
                    if (MOD__CTRL_ONLY) {
                        sp_select_context_up_one_layer(desktop);
                        ret = TRUE;
                    }
                    break;
                case GDK_s:
                case GDK_S:
                    if (MOD__SHIFT_ONLY) {
                        if (!selection->isEmpty()) {
                            seltrans->increaseState();
                        }
                        ret = TRUE;
                    }
                    break;
                case GDK_g:
                case GDK_G:
                    if (MOD__SHIFT_ONLY) {
                        sp_selection_to_guides(desktop);
                        ret = true;
                    }
                    break;
                default:
                    break;
            }
            break;
			}
        case GDK_KEY_RELEASE:
            {
            guint keyval = get_group0_keyval(&event->key);
            if (key_is_a_modifier (keyval))
                event_context->defaultMessageContext()->clear();

            bool alt = ( MOD__ALT
                         || (keyval == GDK_Alt_L)
                         || (keyval == GDK_Alt_R)
                         || (keyval == GDK_Meta_L)
                         || (keyval == GDK_Meta_R));

            if (Inkscape::Rubberband::get(desktop)->is_started()) {
                // if Alt then change cursor to moving cursor:
                if (alt) {
                    Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_RECT);
                }
            }
            }
            // set cursor to default.
            if (!desktop->isWaitingCursor()) {
                desktop->setCursor(event_context->cursor_shape);
            }
            break;
        default:
            break;
    }

    if (!ret) {
        if (((SPEventContextClass *) parent_class)->root_handler)
            ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
    }

    return ret;
}
Пример #10
0
static gint
sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
{
    gint ret = FALSE;

    SPDesktop *desktop = event_context->desktop;
    SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
    Inkscape::SelTrans *seltrans = sc->_seltrans;

    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
    tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);

    // make sure we still have valid objects to move around
    if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
        sp_select_context_abort(event_context);
    }

    switch (event->type) {
        case GDK_BUTTON_PRESS:
            if (event->button.button == 1 && !event_context->space_panning) {
                /* Left mousebutton */

                // save drag origin
                xp = (gint) event->button.x;
                yp = (gint) event->button.y;
                within_tolerance = true;

                // remember what modifiers were on before button press
                sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
                sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
                sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;

                if (event->button.state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK)) {
                    // if shift or ctrl was pressed, do not move objects;
                    // pass the event to root handler which will perform rubberband, shift-click, ctrl-click, ctrl-drag
                } else {
                    sc->dragging = TRUE;
                    sc->moved = FALSE;

                    desktop->setCursor(SP_SELECT_D_CURSOR);
                    
                    desktop->canvas->force_full_redraw_after_interruptions(5);

                    // remember the clicked item in sc->item:
                    if (sc->item) {
                        sp_object_unref(sc->item, NULL);
                        sc->item = NULL;
                    }
                    sc->item = sp_event_context_find_item (desktop,
                                              Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
                    sp_object_ref(sc->item, NULL);

                    rb_escaped = drag_escaped = 0;

                    if (sc->grabbed) {
                        sp_canvas_item_ungrab(sc->grabbed, event->button.time);
                        sc->grabbed = NULL;
                    }
                    sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->drawing),
                                        GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
                                        GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK,
                                        NULL, event->button.time);
                    sc->grabbed = SP_CANVAS_ITEM(desktop->drawing);

                    desktop->canvas->force_full_redraw_after_interruptions(5);

                    ret = TRUE;
                }
            } else if (event->button.button == 3) {
                // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
                sp_select_context_abort(event_context);
            }
            break;

        case GDK_ENTER_NOTIFY:
        {
            if (!desktop->isWaitingCursor() && !sc->dragging) {
                desktop->setCursor(SP_SELECT_CURSOR);
            }
            break;
        }

        case GDK_LEAVE_NOTIFY:
            if (!desktop->isWaitingCursor() && !sc->dragging)
                desktop->setCursor(event_context->cursor_shape);
            break;

        case GDK_KEY_PRESS:
            if (get_group0_keyval (&event->key) == GDK_space) {
                if (sc->dragging && sc->grabbed) {
                    /* stamping mode: show content mode moving */
                    seltrans->stamp();
                    ret = TRUE;
                }
            }
            break;

        default:
            break;
    }

    if (!ret) {
        if (((SPEventContextClass *) parent_class)->item_handler)
            ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
    }

    return ret;
}
Пример #11
0
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;
}
Пример #12
0
static gint sp_zoom_context_root_handler(SPEventContext *event_context, GdkEvent *event)
{
    SPDesktop *desktop = event_context->desktop;
    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
	
	SPZoomContext *zc = SP_ZOOM_CONTEXT(event_context);
    tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
    double const zoom_inc = prefs->getDoubleLimited("/options/zoomincrement/value", M_SQRT2, 1.01, 10);

    gint ret = FALSE;

    switch (event->type) {
        case GDK_BUTTON_PRESS:
        {
            Geom::Point const button_w(event->button.x, event->button.y);
            Geom::Point const button_dt(desktop->w2d(button_w));
            if (event->button.button == 1 && !event_context->space_panning) {
                // save drag origin
                xp = (gint) event->button.x;
                yp = (gint) event->button.y;
                within_tolerance = true;

                Inkscape::Rubberband::get(desktop)->start(desktop, button_dt);

                escaped = false;

                ret = TRUE;
            } else if (event->button.button == 3) {
                double const zoom_rel( (event->button.state & GDK_SHIFT_MASK)
                                       ? zoom_inc
                                       : 1 / zoom_inc );
                desktop->zoom_relative_keep_point(button_dt, zoom_rel);
                ret = TRUE;
            }
			
			sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
								GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK,
								NULL, event->button.time);
			zc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
				
            break;
        }

	case GDK_MOTION_NOTIFY:
            if (event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {
                ret = TRUE;

                if ( within_tolerance
                     && ( abs( (gint) event->motion.x - xp ) < tolerance )
                     && ( abs( (gint) event->motion.y - yp ) < 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 move the object, not click), then always process the
                // motion notify coordinates as given (no snapping back to origin)
                within_tolerance = false;

                Geom::Point const motion_w(event->motion.x, event->motion.y);
                Geom::Point const motion_dt(desktop->w2d(motion_w));
                Inkscape::Rubberband::get(desktop)->move(motion_dt);
                gobble_motion_events(GDK_BUTTON1_MASK);
            }
            break;

      	case GDK_BUTTON_RELEASE:
        {
            Geom::Point const button_w(event->button.x, event->button.y);
            Geom::Point const button_dt(desktop->w2d(button_w));
            if ( event->button.button == 1  && !event_context->space_panning) {
                Geom::OptRect const b = Inkscape::Rubberband::get(desktop)->getRectangle();
                if (b && !within_tolerance) {
                    desktop->set_display_area(*b, 10);
                } else if (!escaped) {
                    double const zoom_rel( (event->button.state & GDK_SHIFT_MASK)
                                           ? 1 / zoom_inc
                                           : zoom_inc );
                    desktop->zoom_relative_keep_point(button_dt, zoom_rel);
                }
                ret = TRUE;
            } 
            Inkscape::Rubberband::get(desktop)->stop();
			
			if (zc->grabbed) {
				sp_canvas_item_ungrab(zc->grabbed, event->button.time);
				zc->grabbed = NULL;
			}
			
            xp = yp = 0;
            escaped = false;
            break;
        }
        case GDK_KEY_PRESS:
            switch (get_group0_keyval (&event->key)) {
                case GDK_Escape:
                    Inkscape::Rubberband::get(desktop)->stop();
                    xp = yp = 0;
                    escaped = true;
                    ret = TRUE;
                    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_Shift_L:
                case GDK_Shift_R:
                    event_context->cursor_shape = SP_ZOOM_OUT_CURSOR;
                    sp_event_context_update_cursor(event_context);
                    break;
                default:
			break;
		}
		break;
	case GDK_KEY_RELEASE:
            switch (get_group0_keyval (&event->key)) {
		case GDK_Shift_L:
		case GDK_Shift_R:
                    event_context->cursor_shape = SP_ZOOM_CURSOR;
                    sp_event_context_update_cursor(event_context);
                    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;
}
Пример #13
0
static gint
pencil_handle_button_release(SPPencilContext *const pc, GdkEventButton const &revent)
{
    gint ret = FALSE;

    SPEventContext *event_context = SP_EVENT_CONTEXT(pc);
    if ( revent.button == 1 && pc->is_drawing && !event_context->space_panning) {
        SPDesktop *const dt = pc->desktop;

        pc->is_drawing = false;

        /* Find desktop coordinates */
        Geom::Point p = dt->w2d(Geom::Point(revent.x, revent.y));

        /* Test whether we hit any anchor. */
        SPDrawAnchor *anchor = spdc_test_inside(pc, Geom::Point(revent.x,
                                                              revent.y));

        switch (pc->state) {
            case SP_PENCIL_CONTEXT_IDLE:
                /* Releasing button in idle mode means single click */
                /* We have already set up start point/anchor in button_press */
                if (!(revent.state & GDK_CONTROL_MASK)) {
                    // Ctrl+click creates a single point so only set context in ADDLINE mode when Ctrl isn't pressed
                    pc->state = SP_PENCIL_CONTEXT_ADDLINE;
                }
                ret = TRUE;
                break;
            case SP_PENCIL_CONTEXT_ADDLINE:
                /* Finish segment now */
                if (anchor) {
                    p = anchor->dp;
                } else {
                    spdc_endpoint_snap(pc, p, revent.state);
                }
                pc->ea = anchor;
                spdc_set_endpoint(pc, p);
                spdc_finish_endpoint(pc);
                pc->state = SP_PENCIL_CONTEXT_IDLE;
                ret = TRUE;
                break;
            case SP_PENCIL_CONTEXT_FREEHAND:
                if (revent.state & GDK_MOD1_MASK) {
                    /* sketch mode: interpolate the sketched path and improve the current output path with the new interpolation. don't finish sketch */

                    sketch_interpolate(pc);

                    if (pc->green_anchor) {
                        pc->green_anchor = sp_draw_anchor_destroy(pc->green_anchor);
                    }

                    pc->state = SP_PENCIL_CONTEXT_SKETCH;
                } else {
                    /* Finish segment now */
                    /// \todo fixme: Clean up what follows (Lauris)
                    if (anchor) {
                        p = anchor->dp;
                    }
                    pc->ea = anchor;
                    /* Write curves to object */

                    dt->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Finishing freehand"));

                    interpolate(pc);
                    spdc_concat_colors_and_flush(pc, FALSE);
                    pc->sa = NULL;
                    pc->ea = NULL;
                    if (pc->green_anchor) {
                        pc->green_anchor = sp_draw_anchor_destroy(pc->green_anchor);
                    }
                    pc->state = SP_PENCIL_CONTEXT_IDLE;
                    // reset sketch mode too
                    pc->sketch_n = 0;
                }
                ret = TRUE;
                break;
            case SP_PENCIL_CONTEXT_SKETCH:
            default:
                break;
        }

        if (pc->grab) {
            /* Release grab now */
            sp_canvas_item_ungrab(pc->grab, revent.time);
            pc->grab = NULL;
        }

        ret = TRUE;
    }
    return ret;
}
Пример #14
0
/**
 * Called to handle events on knots.
 */
static int sp_knot_handler(SPCanvasItem */*item*/, GdkEvent *event, SPKnot *knot)
{
    g_assert(knot != NULL);
    g_assert(SP_IS_KNOT(knot));

    /* Run client universal event handler, if present */

    gboolean consumed = FALSE;

    g_signal_emit(knot, knot_signals[EVENT], 0, event, &consumed);

    if (consumed) {
        return TRUE;
    }

    g_object_ref(knot);
    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
    tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);

    switch (event->type) {
	case GDK_2BUTTON_PRESS:
            if (event->button.button == 1) {
                g_signal_emit(knot, knot_signals[DOUBLECLICKED], 0, event->button.state);

                grabbed = FALSE;
                moved = FALSE;
                consumed = TRUE;
            }
            break;
	case GDK_BUTTON_PRESS:
            if (event->button.button == 1 && !knot->desktop->event_context->space_panning) {
                Geom::Point const p = knot->desktop->w2d(Geom::Point(event->button.x, event->button.y));
                sp_knot_start_dragging(knot, p, (gint) event->button.x, (gint) event->button.y, event->button.time);
                consumed = TRUE;
            }
            break;
	case GDK_BUTTON_RELEASE:
            if (event->button.button == 1 && !knot->desktop->event_context->space_panning) {
                knot->pressure = 0;
                if (transform_escaped) {
                    transform_escaped = false;
                    consumed = TRUE;
                } else {
                    sp_knot_set_flag(knot, SP_KNOT_GRABBED, FALSE);
                    if (!nograb) {
                        sp_canvas_item_ungrab(knot->item, event->button.time);
                    }
                    if (moved) {
                        sp_knot_set_flag(knot,
                                         SP_KNOT_DRAGGING,
                                         FALSE);
                        g_signal_emit(knot,
                                      knot_signals[UNGRABBED], 0,
                                      event->button.state);
                        knot->_ungrabbed_signal.emit(knot);
                    } else {
                        g_signal_emit(knot,
                                      knot_signals[CLICKED], 0,
                                      event->button.state);
                        knot->_click_signal.emit(knot, event->button.state);
                    }
                    grabbed = FALSE;
                    moved = FALSE;
                    consumed = TRUE;
                }
            }
            break;
	case GDK_MOTION_NOTIFY:
            if (grabbed && !knot->desktop->event_context->space_panning) {
                consumed = TRUE;

                if ( within_tolerance
                     && ( abs( (gint) event->motion.x - xp ) < tolerance )
                     && ( abs( (gint) event->motion.y - yp ) < 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 move the object, not click), then always process the
                // motion notify coordinates as given (no snapping back to origin)
                within_tolerance = false;

                if (gdk_event_get_axis (event, GDK_AXIS_PRESSURE, &knot->pressure))
                    knot->pressure = CLAMP (knot->pressure, 0, 1);
                else
                    knot->pressure = 0.5;

                if (!moved) {
                    g_signal_emit(knot,
                                  knot_signals[GRABBED], 0,
                                  event->motion.state);
                    sp_knot_set_flag(knot,
                                     SP_KNOT_DRAGGING,
                                     TRUE);
                }
                Geom::Point const motion_w(event->motion.x, event->motion.y);
                Geom::Point const motion_dt = knot->desktop->w2d(motion_w);
                Geom::Point p = motion_dt - knot->grabbed_rel_pos;
                sp_knot_request_position (knot, p, event->motion.state);
                knot->desktop->scroll_to_point (motion_dt);
                knot->desktop->set_coordinate_status(knot->pos); // display the coordinate of knot, not cursor - they may be different!
                if (event->motion.state & GDK_BUTTON1_MASK)
                    gobble_motion_events(GDK_BUTTON1_MASK);
                moved = TRUE;
            }
            break;
	case GDK_ENTER_NOTIFY:
            sp_knot_set_flag(knot, SP_KNOT_MOUSEOVER, TRUE);
            sp_knot_set_flag(knot, SP_KNOT_GRABBED, FALSE);

            if (knot->tip) {
                knot->desktop->event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, knot->tip);
            }

            grabbed = FALSE;
            moved = FALSE;
            consumed = TRUE;
            break;
	case GDK_LEAVE_NOTIFY:
            sp_knot_set_flag(knot, SP_KNOT_MOUSEOVER, FALSE);
            sp_knot_set_flag(knot, SP_KNOT_GRABBED, FALSE);

            if (knot->tip) {
                knot->desktop->event_context->defaultMessageContext()->clear();
            }

            grabbed = FALSE;
            moved = FALSE;

            consumed = TRUE;
            break;
	case GDK_KEY_PRESS: // keybindings for knot
            switch (get_group0_keyval(&event->key)) {
		case GDK_Escape:
                    sp_knot_set_flag(knot, SP_KNOT_GRABBED, FALSE);
                    if (!nograb) {
                        sp_canvas_item_ungrab(knot->item, event->button.time);
                    }
                    if (moved) {
                        sp_knot_set_flag(knot,
                                         SP_KNOT_DRAGGING,
                                         FALSE);
                        g_signal_emit(knot,
                                      knot_signals[UNGRABBED], 0,
                                      event->button.state);
                        sp_document_undo(sp_desktop_document(knot->desktop));
                        knot->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Node or handle drag canceled."));
                        transform_escaped = true;
                        consumed = TRUE;
                    }
                    grabbed = FALSE;
                    moved = FALSE;
                    break;
		default:
                    consumed = FALSE;
                    break;
            }
            break;
	default:
            break;
    }

    g_object_unref(knot);

    return consumed;
}
Пример #15
0
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;
}
Пример #16
0
gint
sp_pencil_context_root_handler (SPEventContext *ec, GdkEvent *event)
{
	SPDrawContext *dc;
	SPPencilContext *pc;
	SPDesktop *dt;
	NRPointF p;
	gint ret;
	SPDrawAnchor *anchor;
	NRPointF fp;

	dc = SP_DRAW_CONTEXT (ec);
	pc = SP_PENCIL_CONTEXT (ec);
	dt = ec->desktop;

	ret = FALSE;

	switch (event->type) {
	case GDK_BUTTON_PRESS:
		if (event->button.button == 1) {
			NRPointF fp;
#if 0
			/* Grab mouse, so release will not pass unnoticed */
			dc->grab = SP_CANVAS_ITEM (dt->acetate);
			sp_canvas_item_grab (dc->grab, SPDC_EVENT_MASK, NULL, event->button.time);
#endif
			/* Find desktop coordinates */
			sp_desktop_w2d_xy_point (dt, &fp, event->button.x, event->button.y);
			p.x = fp.x;
			p.y = fp.y;
			/* Test, whether we hit any anchor */
			anchor = test_inside (dc, event->button.x, event->button.y);

			switch (pc->state) {
			case SP_PENCIL_CONTEXT_ADDLINE:
				/* Current segment will be finished with release */
				ret = TRUE;
				break;
			default:
				/* Set first point of sequence */
				if (anchor) {
					p = anchor->dp;
				}
				dc->sa = anchor;
				spdc_set_startpoint (pc, &p, event->button.state);
				ret = TRUE;
				break;
			}
		}
		break;
	case GDK_MOTION_NOTIFY:
#if 1
		if ((event->motion.state & GDK_BUTTON1_MASK) && !dc->grab) {
			/* Grab mouse, so release will not pass unnoticed */
			dc->grab = SP_CANVAS_ITEM (dt->acetate);
			sp_canvas_item_grab (dc->grab, SPDC_EVENT_MASK, NULL, event->button.time);
		}
#endif
		/* Find desktop coordinates */
		sp_desktop_w2d_xy_point (dt, &fp, event->motion.x, event->motion.y);
		p.x = fp.x;
		p.y = fp.y;
		/* Test, whether we hit any anchor */
		anchor = test_inside (dc, event->button.x, event->button.y);

		switch (pc->state) {
		case SP_PENCIL_CONTEXT_ADDLINE:
			/* Set red endpoint */
			if (anchor) {
				p = anchor->dp;
			}
			spdc_set_endpoint (pc, &p, event->motion.state);
			ret = TRUE;
			break;
		default:
			/* We may be idle or already freehand */
			if (event->motion.state & GDK_BUTTON1_MASK) {
				pc->state = SP_PENCIL_CONTEXT_FREEHAND;
				if (!dc->sa && !dc->green_anchor) {
					/* Create green anchor */
					dc->green_anchor = sp_draw_anchor_new (dc, dc->green_curve, TRUE, dc->p[0].x, dc->p[0].y);
				}
				/* fixme: I am not sure, whether we want to snap to anchors in middle of freehand (Lauris) */
				if (anchor) {
					p = anchor->dp;
				} else {
					sp_desktop_free_snap (dt, &p);
				}
				spdc_add_freehand_point (pc, &p, event->motion.state);
				ret = TRUE;
			}
			break;
		}
		break;
	case GDK_BUTTON_RELEASE:
		if (event->button.button == 1) {
			NRPointF fp;
			/* Find desktop coordinates */
			sp_desktop_w2d_xy_point (dt, &fp, event->motion.x, event->motion.y);
			p.x = fp.x;
			p.y = fp.y;
			/* Test, whether we hit any anchor */
			anchor = test_inside (dc, event->button.x, event->button.y);

			switch (pc->state) {
			case SP_PENCIL_CONTEXT_IDLE:
				/* Releasing button in idle mode means single click */
				/* We have already set up start point/anchor in button_press */
				pc->state = SP_PENCIL_CONTEXT_ADDLINE;
				ret = TRUE;
				break;
			case SP_PENCIL_CONTEXT_ADDLINE:
				/* Finish segment now */
				if (anchor) {
					p = anchor->dp;
				}
				dc->ea = anchor;
				spdc_finish_endpoint (pc, &p, !anchor, event->button.state);
				pc->state = SP_PENCIL_CONTEXT_IDLE;
				ret = TRUE;
				break;
			case SP_PENCIL_CONTEXT_FREEHAND:
				/* Finish segment now */
				/* fixme: Clean up what follows (Lauris) */
				if (anchor) {
					p = anchor->dp;
				}
				dc->ea = anchor;
				/* Write curves to object */
				g_print ("Finishing freehand\n");
				spdc_concat_colors_and_flush (dc, FALSE);
				dc->sa = NULL;
				dc->ea = NULL;
				if (dc->green_anchor) {
					dc->green_anchor = sp_draw_anchor_destroy (dc->green_anchor);
				}
				pc->state = SP_PENCIL_CONTEXT_IDLE;
				ret = TRUE;
				break;
			default:
				break;
			}
#if 1
			if (dc->grab) {
				/* Release grab now */
				sp_canvas_item_ungrab (dc->grab, event->button.time);
				dc->grab = NULL;
			}
#endif
			dc->grab = NULL;
			ret = TRUE;
		}
		break;
	default:
		break;
	}

	if (!ret) {
		if (((SPEventContextClass *) pencil_parent_class)->root_handler)
			ret = ((SPEventContextClass *) pencil_parent_class)->root_handler (ec, event);
	}

	return ret;
}
Пример #17
0
bool ZoomTool::root_handler(GdkEvent* event) {
    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
	
    tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
    double const zoom_inc = prefs->getDoubleLimited("/options/zoomincrement/value", M_SQRT2, 1.01, 10);

    bool ret = false;

    switch (event->type) {
        case GDK_BUTTON_PRESS:
        {
            Geom::Point const button_w(event->button.x, event->button.y);
            Geom::Point const button_dt(desktop->w2d(button_w));

            if (event->button.button == 1 && !this->space_panning) {
                // save drag origin
                xp = (gint) event->button.x;
                yp = (gint) event->button.y;
                within_tolerance = true;

                Inkscape::Rubberband::get(desktop)->start(desktop, button_dt);

                escaped = false;

                ret = true;
            } else if (event->button.button == 3) {
                double const zoom_rel( (event->button.state & GDK_SHIFT_MASK)
                                       ? zoom_inc
                                       : 1 / zoom_inc );

                desktop->zoom_relative_keep_point(button_dt, zoom_rel);
                ret = true;
            }
			
			sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
								GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK,
								NULL, event->button.time);

			this->grabbed = SP_CANVAS_ITEM(desktop->acetate);
            break;
        }

	case GDK_MOTION_NOTIFY:
            if ((event->motion.state & GDK_BUTTON1_MASK) && !this->space_panning) {
                ret = true;

                if ( within_tolerance
                     && ( abs( (gint) event->motion.x - xp ) < tolerance )
                     && ( abs( (gint) event->motion.y - yp ) < 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 move the object, not click), then always process the
                // motion notify coordinates as given (no snapping back to origin)
                within_tolerance = false;

                Geom::Point const motion_w(event->motion.x, event->motion.y);
                Geom::Point const motion_dt(desktop->w2d(motion_w));
                Inkscape::Rubberband::get(desktop)->move(motion_dt);
                gobble_motion_events(GDK_BUTTON1_MASK);
            }
            break;

      	case GDK_BUTTON_RELEASE:
        {
            Geom::Point const button_w(event->button.x, event->button.y);
            Geom::Point const button_dt(desktop->w2d(button_w));

            if ( event->button.button == 1  && !this->space_panning) {
                Geom::OptRect const b = Inkscape::Rubberband::get(desktop)->getRectangle();

                if (b && !within_tolerance) {
                    desktop->set_display_area(*b, 10);
                } else if (!escaped) {
                    double const zoom_rel( (event->button.state & GDK_SHIFT_MASK)
                                           ? 1 / zoom_inc
                                           : zoom_inc );

                    desktop->zoom_relative_keep_point(button_dt, zoom_rel);
                }

                ret = true;
            }

            Inkscape::Rubberband::get(desktop)->stop();
			
			if (this->grabbed) {
				sp_canvas_item_ungrab(this->grabbed, event->button.time);
				this->grabbed = NULL;
			}
			
            xp = yp = 0;
            escaped = false;
            break;
        }
        case GDK_KEY_PRESS:
            switch (get_group0_keyval (&event->key)) {
                case GDK_KEY_Escape:
                    if (!Inkscape::Rubberband::get(desktop)->is_started()) {
                        Inkscape::SelectionHelper::selectNone(desktop);
                    }

                    Inkscape::Rubberband::get(desktop)->stop();
                    xp = yp = 0;
                    escaped = true;
                    ret = true;
                    break;

                case GDK_KEY_Up:
                case GDK_KEY_Down:
                case GDK_KEY_KP_Up:
                case GDK_KEY_KP_Down:
                    // prevent the zoom field from activation
                    if (!MOD__CTRL_ONLY(event))
                        ret = true;
                    break;

                case GDK_KEY_Shift_L:
                case GDK_KEY_Shift_R:
                    this->cursor_shape = cursor_zoom_out_xpm;
                    this->sp_event_context_update_cursor();
                    break;

                case GDK_KEY_Delete:
                case GDK_KEY_KP_Delete:
                case GDK_KEY_BackSpace:
                    ret = this->deleteSelectedDrag(MOD__CTRL_ONLY(event));
                    break;

                default:
			break;
		}
		break;
	case GDK_KEY_RELEASE:
            switch (get_group0_keyval (&event->key)) {
            	case GDK_KEY_Shift_L:
            	case GDK_KEY_Shift_R:
                    this->cursor_shape = cursor_zoom_xpm;
                    this->sp_event_context_update_cursor();
                    break;
            	default:
                    break;
            }
            break;
	default:
            break;
    }

    if (!ret) {
    	ret = ToolBase::root_handler(event);
    }

    return ret;
}
Пример #18
0
gint
sp_pen_context_root_handler (SPEventContext *ec, GdkEvent *event)
{
	SPDrawContext *dc;
	SPPenContext *pc;
	SPDesktop *dt;
	NRPointF p;
	gint ret;
	SPDrawAnchor *anchor;
	NRPointF fp;

	dc = SP_DRAW_CONTEXT (ec);
	pc = SP_PEN_CONTEXT (ec);
	dt = ec->desktop;

	ret = FALSE;

	switch (event->type) {
	case GDK_BUTTON_PRESS:
		if (event->button.button == 1) {
#if 0
			/* Grab mouse, so release will not pass unnoticed */
			dc->grab = SP_CANVAS_ITEM (dt->acetate);
			sp_canvas_item_grab (dc->grab, SPDC_EVENT_MASK, NULL, event->button.time);
#endif
			/* Find desktop coordinates */
			sp_desktop_w2d_xy_point (dt, &fp, event->button.x, event->button.y);
			p.x = fp.x;
			p.y = fp.y;
			/* Test, whether we hit any anchor */
			anchor = test_inside (dc, event->button.x, event->button.y);

			switch (pc->mode) {
			case SP_PEN_CONTEXT_MODE_CLICK:
				/* In click mode we add point on release */
				switch (pc->state) {
				case SP_PEN_CONTEXT_POINT:
				case SP_PEN_CONTEXT_CONTROL:
				case SP_PEN_CONTEXT_CLOSE:
					break;
				case SP_PEN_CONTEXT_STOP:
					/* This is allowed, if we just cancelled curve */
					pc->state = SP_PEN_CONTEXT_POINT;
					break;
				default:
					break;
				}
				break;
			case SP_PEN_CONTEXT_MODE_DRAG:
				switch (pc->state) {
				case SP_PEN_CONTEXT_STOP:
					/* This is allowed, if we just cancelled curve */
				case SP_PEN_CONTEXT_POINT:
					if (dc->npoints == 0) {
						/* Set start anchor */
						dc->sa = anchor;
						if (anchor) {
							/* Adjust point to anchor if needed */
							p = anchor->dp;
						} else {
							/* Create green anchor */
							dc->green_anchor = sp_draw_anchor_new (dc, dc->green_curve, TRUE, p.x, p.y);
						}
						spdc_pen_set_point (pc, &p, event->motion.state);
					} else {
						/* Set end anchor */
						dc->ea = anchor;
						spdc_pen_set_point (pc, &p, event->motion.state);
						if (dc->green_anchor && dc->green_anchor->active) {
							pc->state = SP_PEN_CONTEXT_CLOSE;
							ret = TRUE;
							break;
						}
					}
					pc->state = SP_PEN_CONTEXT_CONTROL;
					ret = TRUE;
					break;
				case SP_PEN_CONTEXT_CONTROL:
					g_warning ("Button down in CONTROL state");
					break;
				case SP_PEN_CONTEXT_CLOSE:
					g_warning ("Button down in CLOSE state");
					break;
				default:
					break;
				}
				break;
			default:
				break;
			}
		}
		break;
	case GDK_MOTION_NOTIFY:
#if 1
		if ((event->motion.state & GDK_BUTTON1_MASK) && !dc->grab) {
			/* Grab mouse, so release will not pass unnoticed */
			dc->grab = SP_CANVAS_ITEM (dt->acetate);
			sp_canvas_item_grab (dc->grab, SPDC_EVENT_MASK, NULL, event->button.time);
		}
#endif
		/* Find desktop coordinates */
		sp_desktop_w2d_xy_point (dt, &fp, event->motion.x, event->motion.y);
		p.x = fp.x;
		p.y = fp.y;
		/* Test, whether we hit any anchor */
		anchor = test_inside (dc, event->button.x, event->button.y);
		if (!anchor) {
			/* Snap only if not hitting anchor */
			spdc_endpoint_snap (dc, &p, event->motion.state);
		}

		switch (pc->mode) {
		case SP_PEN_CONTEXT_MODE_CLICK:
			switch (pc->state) {
			case SP_PEN_CONTEXT_POINT:
				if (dc->npoints != 0) {
					/* Only set point, if we are already appending */
					/* fixme: Snapping */
					spdc_pen_set_point (pc, &p, event->motion.state);
					ret = TRUE;
				}
				break;
			case SP_PEN_CONTEXT_CONTROL:
			case SP_PEN_CONTEXT_CLOSE:
				/* Placing controls is last operation in CLOSE state */
				/* fixme: Snapping */
				spdc_pen_set_ctrl (pc, &p, event->motion.state);
				ret = TRUE;
				break;
			case SP_PEN_CONTEXT_STOP:
				/* This is perfectly valid */
				break;
			default:
				break;
			}
			break;
		case SP_PEN_CONTEXT_MODE_DRAG:
			switch (pc->state) {
			case SP_PEN_CONTEXT_POINT:
				if (dc->npoints > 0) {
					/* Only set point, if we are already appending */
					/* fixme: Snapping */
					spdc_pen_set_point (pc, &p, event->motion.state);
					ret = TRUE;
				}
				break;
			case SP_PEN_CONTEXT_CONTROL:
			case SP_PEN_CONTEXT_CLOSE:
				/* Placing controls is last operation in CLOSE state */
				/* fixme: Snapping */
				spdc_pen_set_ctrl (pc, &p, event->motion.state);
				ret = TRUE;
				break;
			case SP_PEN_CONTEXT_STOP:
				/* This is perfectly valid */
				break;
			default:
				break;
			}
			break;
		default:
			break;
		}
		break;
	case GDK_BUTTON_RELEASE:
		if (event->button.button == 1) {
			/* Find desktop coordinates */
			sp_desktop_w2d_xy_point (dt, &fp, event->motion.x, event->motion.y);
			p.x = fp.x;
			p.y = fp.y;
			/* Test, whether we hit any anchor */
			anchor = test_inside (dc, event->button.x, event->button.y);

			switch (pc->mode) {
			case SP_PEN_CONTEXT_MODE_CLICK:
				switch (pc->state) {
				case SP_PEN_CONTEXT_POINT:
					if (dc->npoints == 0) {
						/* Start new thread only with button release */
						if (anchor) {
							p = anchor->dp;
						}
						dc->sa = anchor;
						spdc_pen_set_point (pc, &p, event->motion.state);
					} else {
						/* Set end anchor here */
						dc->ea = anchor;
					}
					pc->state = SP_PEN_CONTEXT_CONTROL;
					ret = TRUE;
					break;
				case SP_PEN_CONTEXT_CONTROL:
					/* End current segment */
					spdc_pen_finish_segment (pc, &p, event->button.state);
					pc->state = SP_PEN_CONTEXT_POINT;
					ret = TRUE;
					break;
				case SP_PEN_CONTEXT_CLOSE:
					/* End current segment */
					spdc_pen_finish_segment (pc, &p, event->button.state);
					spdc_pen_finish (pc, TRUE);
					pc->state = SP_PEN_CONTEXT_POINT;
					ret = TRUE;
					break;
				case SP_PEN_CONTEXT_STOP:
					/* This is allowed, if we just cancelled curve */
					pc->state = SP_PEN_CONTEXT_POINT;
					ret = TRUE;
					break;
				default:
					break;
				}
				break;
			case SP_PEN_CONTEXT_MODE_DRAG:
				switch (pc->state) {
				case SP_PEN_CONTEXT_POINT:
				case SP_PEN_CONTEXT_CONTROL:
					spdc_pen_finish_segment (pc, &p, event->button.state);
					break;
				case SP_PEN_CONTEXT_CLOSE:
					spdc_pen_finish_segment (pc, &p, event->button.state);
					spdc_pen_finish (pc, TRUE);
					break;
				case SP_PEN_CONTEXT_STOP:
					/* This is allowed, if we just cancelled curve */
					break;
				default:
					break;
				}
				pc->state = SP_PEN_CONTEXT_POINT;
				ret = TRUE;
				break;
			default:
				break;
			}
#if 1
			if (dc->grab) {
				/* Release grab now */
				sp_canvas_item_ungrab (dc->grab, event->button.time);
				dc->grab = NULL;
			}
#endif
			ret = TRUE;
		}
		break;
	case GDK_2BUTTON_PRESS:
		spdc_pen_finish (pc, FALSE);
		ret = TRUE;
		break;
	case GDK_KEY_PRESS:
		/* fixme: */
		switch (event->key.keyval) {
		case GDK_Return:
			spdc_pen_finish (pc, FALSE);
			ret = TRUE;
			break;
		case GDK_Escape:
			pc->state = SP_PEN_CONTEXT_STOP;
			spdc_reset_colors (dc);
			sp_canvas_item_hide (pc->c0);
			sp_canvas_item_hide (pc->c1);
			sp_canvas_item_hide (pc->cl0);
			sp_canvas_item_hide (pc->cl1);
			ret = TRUE;
			break;
		case GDK_BackSpace:
			if (sp_curve_is_empty (dc->green_curve)) {
				/* Same as cancel */
				pc->state = SP_PEN_CONTEXT_STOP;
				spdc_reset_colors (dc);
				sp_canvas_item_hide (pc->c0);
				sp_canvas_item_hide (pc->c1);
				sp_canvas_item_hide (pc->cl0);
				sp_canvas_item_hide (pc->cl1);
				ret = TRUE;
				break;
			} else {
				NRPointF pt;
				ArtBpath *p;
				gint e;
				/* Reset red curve */
				sp_curve_reset (dc->red_curve);
				/* Destroy topmost green bpath */
				gtk_object_destroy (GTK_OBJECT (dc->green_bpaths->data));
				dc->green_bpaths = g_slist_remove (dc->green_bpaths, dc->green_bpaths->data);
				/* Get last segment */
				p = SP_CURVE_BPATH (dc->green_curve);
				e = SP_CURVE_LENGTH (dc->green_curve);
				if (e < 2) {
					g_warning ("Green curve length is %d", e);
					break;
				}
				dc->p[0].x = p[e - 2].x3;
				dc->p[0].y = p[e - 2].y3;
				dc->p[1].x = p[e - 1].x1;
				dc->p[1].y = p[e - 1].y1;
				if (dc->npoints < 4) {
					pt.x = p[e - 1].x3;
					pt.y = p[e - 1].y3;
				} else {
					pt.x = dc->p[3].x;
					pt.y = dc->p[3].y;
				}
				dc->npoints = 2;
				sp_curve_backspace (dc->green_curve);
				sp_canvas_item_hide (pc->c0);
				sp_canvas_item_hide (pc->c1);
				sp_canvas_item_hide (pc->cl0);
				sp_canvas_item_hide (pc->cl1);
				pc->state = SP_PEN_CONTEXT_POINT;
				spdc_pen_set_point (pc, &pt, event->motion.state);
				ret = TRUE;
			}
			break;
		default:
			break;
		}
		break;
	default:
		break;
	}

	if (!ret) {
		if (((SPEventContextClass *) pen_parent_class)->root_handler)
			return ((SPEventContextClass *) pen_parent_class)->root_handler (ec, event);
	}

	return ret;
}