/**
* Creates an anchor object and initializes it.
*/
SPDrawAnchor *sp_draw_anchor_new(SPDrawContext *dc, SPCurve *curve, gboolean start, Geom::Point delta)
{
if (SP_IS_LPETOOL_CONTEXT(dc)) {
// suppress all kinds of anchors in LPEToolContext
return NULL;
}
SPDesktop *dt = SP_EVENT_CONTEXT_DESKTOP(dc);
SPDrawAnchor *a = g_new(SPDrawAnchor, 1);
a->dc = dc;
a->curve = curve;
curve->ref();
a->start = start;
a->active = FALSE;
a->dp = delta;
a->ctrl = sp_canvas_item_new(sp_desktop_controls(dt), SP_TYPE_CTRL,
"size", 6.0,
"filled", 1,
"fill_color", FILL_COLOR_NORMAL,
"stroked", 1,
"stroke_color", 0x000000ff,
NULL);
SP_CTRL(a->ctrl)->moveto(delta);
return a;
}
static SPDrawAnchor *
sp_draw_anchor_new (SPDrawContext *dc, SPCurve *curve, gboolean start, gdouble dx, gdouble dy)
{
SPDrawAnchor *a;
g_print ("Creating anchor at %g %g\n", dx, dy);
a = g_new (SPDrawAnchor, 1);
a->dc = dc;
a->curve = curve;
a->start = start;
a->active = FALSE;
a->dp.x = dx;
a->dp.y = dy;
sp_desktop_d2w_xy_point (SP_EVENT_CONTEXT_DESKTOP (dc), &a->wp, dx, dy);
a->ctrl = sp_canvas_item_new (SP_DT_CONTROLS (SP_EVENT_CONTEXT_DESKTOP (dc)), SP_TYPE_CTRL,
"size", 4.0,
"filled", 0,
"fill_color", 0xff00007f,
"stroked", 1,
"stroke_color", 0x000000ff,
NULL);
sp_ctrl_moveto (SP_CTRL (a->ctrl), dx, dy);
return a;
}
/**
* Move knot to new position, without emitting a MOVED signal.
*/
void sp_knot_moveto(SPKnot *knot, Geom::Point const &p)
{
g_return_if_fail(knot != NULL);
g_return_if_fail(SP_IS_KNOT(knot));
knot->pos = p;
if (knot->item) {
SP_CTRL(knot->item)->moveto (p);
}
}
void create_canvas_point(Geom::Point const &pos, double size, guint32 rgba)
{
SPDesktop *desktop = inkscape_active_desktop();
SPCanvasItem * canvas_pt = sp_canvas_item_new(sp_desktop_controls(desktop), SP_TYPE_CTRL,
"size", size,
"filled", 1,
"fill_color", rgba,
"stroked", 1,
"stroke_color", 0x000000ff,
NULL);
SP_CTRL(canvas_pt)->moveto(pos);
}
static void
spdc_pen_set_ctrl (SPPenContext *pc, NRPointF *p, guint state)
{
SPDrawContext *dc;
dc = SP_DRAW_CONTEXT (pc);
sp_canvas_item_show (pc->c1);
sp_canvas_item_show (pc->cl1);
if (dc->npoints == 2) {
dc->p[1] = *p;
sp_canvas_item_hide (pc->c0);
sp_canvas_item_hide (pc->cl0);
sp_ctrl_moveto (SP_CTRL (pc->c1), dc->p[1].x, dc->p[1].y);
sp_ctrlline_set_coords (SP_CTRLLINE (pc->cl1), dc->p[0].x, dc->p[0].y, dc->p[1].x, dc->p[1].y);
} else if (dc->npoints == 5) {
dc->p[4] = *p;
sp_canvas_item_show (pc->c0);
sp_canvas_item_show (pc->cl0);
if (((pc->mode == SP_PEN_CONTEXT_MODE_CLICK) && (state & GDK_CONTROL_MASK)) ||
((pc->mode == SP_PEN_CONTEXT_MODE_DRAG) && !(state & GDK_MOD1_MASK))) {
gdouble dx, dy;
dx = p->x - dc->p[3].x;
dy = p->y - dc->p[3].y;
dc->p[2].x = dc->p[3].x - dx;
dc->p[2].y = dc->p[3].y - dy;
sp_curve_reset (dc->red_curve);
sp_curve_moveto (dc->red_curve, dc->p[0].x, dc->p[0].y);
sp_curve_curveto (dc->red_curve, dc->p[1].x, dc->p[1].y, dc->p[2].x, dc->p[2].y, dc->p[3].x, dc->p[3].y);
sp_canvas_bpath_set_bpath (SP_CANVAS_BPATH (dc->red_bpath), dc->red_curve);
}
sp_ctrl_moveto (SP_CTRL (pc->c0), dc->p[2].x, dc->p[2].y);
sp_ctrlline_set_coords (SP_CTRLLINE (pc->cl0), dc->p[3].x, dc->p[3].y, dc->p[2].x, dc->p[2].y);
sp_ctrl_moveto (SP_CTRL (pc->c1), dc->p[4].x, dc->p[4].y);
sp_ctrlline_set_coords (SP_CTRLLINE (pc->cl1), dc->p[3].x, dc->p[3].y, dc->p[4].x, dc->p[4].y);
} else {
g_warning ("Something bad happened - npoints is %d", dc->npoints);
}
}
static gboolean
sp_sel_trans_handle_request (SPKnot * knot, NRPointF *position, guint state, gboolean * data)
{
SPDesktop * desktop;
SPSelTrans * seltrans;
SPSelTransHandle * handle;
NRPointF point;
if (!SP_KNOT_IS_GRABBED (knot)) return TRUE;
desktop = knot->desktop;
seltrans = &SP_SELECT_CONTEXT (desktop->event_context)->seltrans;
handle = (SPSelTransHandle *) data;
sp_desktop_set_coordinate_status (desktop, position->x, position->y, 0);
sp_view_set_position (SP_VIEW (desktop), position->x, position->y);
if (state & GDK_MOD1_MASK) {
sp_sel_trans_point_desktop (seltrans, &point);
position->x = point.x + (position->x - point.x) / 10;
position->y = point.y + (position->y - point.y) / 10;
}
if (!(state & GDK_SHIFT_MASK) == !(seltrans->state == SP_SELTRANS_STATE_ROTATE)) {
seltrans->origin = seltrans->opposit;
} else {
seltrans->origin = seltrans->center;
}
if (handle->request (seltrans, handle, position, state)) {
sp_knot_set_position (knot, position, state);
sp_ctrl_moveto (SP_CTRL (seltrans->grip), position->x, position->y);
sp_ctrl_moveto (SP_CTRL (seltrans->norm), seltrans->origin.x, seltrans->origin.y);
}
return TRUE;
}
/**
* Move knot to new position.
*/
void sp_knot_set_position(SPKnot *knot, Geom::Point const &p, guint state)
{
g_return_if_fail(knot != NULL);
g_return_if_fail(SP_IS_KNOT (knot));
knot->pos = p;
if (knot->item) {
SP_CTRL(knot->item)->moveto (p);
}
g_signal_emit(knot,
knot_signals[MOVED], 0,
&p,
state);
knot->_moved_signal.emit(knot, p, state);
}
