f173371838c0c680d1cfa5310f0bf35eae0cd839
1 /** \file
2 * Pencil event context implementation.
3 */
5 /*
6 * Authors:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * bulia byak <buliabyak@users.sf.net>
9 *
10 * Copyright (C) 2000 Lauris Kaplinski
11 * Copyright (C) 2000-2001 Ximian, Inc.
12 * Copyright (C) 2002 Lauris Kaplinski
13 * Copyright (C) 2004 Monash University
14 *
15 * Released under GNU GPL, read the file 'COPYING' for more information
16 */
18 #include <gdk/gdkkeysyms.h>
20 #include "pencil-context.h"
21 #include "desktop.h"
22 #include "desktop-handles.h"
23 #include "selection.h"
24 #include "selection-chemistry.h"
25 #include "draw-anchor.h"
26 #include "message-stack.h"
27 #include "message-context.h"
28 #include "modifier-fns.h"
29 #include "sp-path.h"
30 #include "prefs-utils.h"
31 #include "snap.h"
32 #include "pixmaps/cursor-pencil.xpm"
33 #include "display/bezier-utils.h"
34 #include "display/canvas-bpath.h"
35 #include <glibmm/i18n.h>
36 #include "libnr/in-svg-plane.h"
37 #include "libnr/n-art-bpath.h"
38 #include "context-fns.h"
39 #include "sp-namedview.h"
40 #include "xml/repr.h"
41 #include "document.h"
42 #include "desktop-style.h"
43 #include "macros.h"
45 static void sp_pencil_context_class_init(SPPencilContextClass *klass);
46 static void sp_pencil_context_init(SPPencilContext *pc);
47 static void sp_pencil_context_setup(SPEventContext *ec);
48 static void sp_pencil_context_dispose(GObject *object);
50 static gint sp_pencil_context_root_handler(SPEventContext *event_context, GdkEvent *event);
51 static gint pencil_handle_button_press(SPPencilContext *const pc, GdkEventButton const &bevent);
52 static gint pencil_handle_motion_notify(SPPencilContext *const pc, GdkEventMotion const &mevent);
53 static gint pencil_handle_button_release(SPPencilContext *const pc, GdkEventButton const &revent);
54 static gint pencil_handle_key_press(SPPencilContext *const pc, guint const keyval, guint const state);
56 static void spdc_set_startpoint(SPPencilContext *pc, NR::Point const p);
57 static void spdc_set_endpoint(SPPencilContext *pc, NR::Point const p);
58 static void spdc_finish_endpoint(SPPencilContext *pc);
59 static void spdc_add_freehand_point(SPPencilContext *pc, NR::Point p, guint state);
60 static void fit_and_split(SPPencilContext *pc);
63 static SPDrawContextClass *pencil_parent_class;
65 /**
66 * Register SPPencilContext class with Gdk and return its type number.
67 */
68 GType
69 sp_pencil_context_get_type()
70 {
71 static GType type = 0;
72 if (!type) {
73 GTypeInfo info = {
74 sizeof(SPPencilContextClass),
75 NULL, NULL,
76 (GClassInitFunc) sp_pencil_context_class_init,
77 NULL, NULL,
78 sizeof(SPPencilContext),
79 4,
80 (GInstanceInitFunc) sp_pencil_context_init,
81 NULL, /* value_table */
82 };
83 type = g_type_register_static(SP_TYPE_DRAW_CONTEXT, "SPPencilContext", &info, (GTypeFlags)0);
84 }
85 return type;
86 }
88 /**
89 * Initialize SPPencilContext vtable.
90 */
91 static void
92 sp_pencil_context_class_init(SPPencilContextClass *klass)
93 {
94 GObjectClass *object_class;
95 SPEventContextClass *event_context_class;
97 object_class = (GObjectClass *) klass;
98 event_context_class = (SPEventContextClass *) klass;
100 pencil_parent_class = (SPDrawContextClass*)g_type_class_peek_parent(klass);
102 object_class->dispose = sp_pencil_context_dispose;
104 event_context_class->setup = sp_pencil_context_setup;
105 event_context_class->root_handler = sp_pencil_context_root_handler;
106 }
108 /**
109 * Callback to initialize SPPencilContext object.
110 */
111 static void
112 sp_pencil_context_init(SPPencilContext *pc)
113 {
114 SPEventContext *event_context = SP_EVENT_CONTEXT(pc);
116 event_context->cursor_shape = cursor_pencil_xpm;
117 event_context->hot_x = 4;
118 event_context->hot_y = 4;
120 pc->npoints = 0;
121 pc->state = SP_PENCIL_CONTEXT_IDLE;
122 pc->req_tangent = NR::Point(0, 0);
123 }
125 /**
126 * Callback to setup SPPencilContext object.
127 */
128 static void
129 sp_pencil_context_setup(SPEventContext *ec)
130 {
131 if (prefs_get_int_attribute("tools.freehand.pencil", "selcue", 0) != 0) {
132 ec->enableSelectionCue();
133 }
135 if (((SPEventContextClass *) pencil_parent_class)->setup) {
136 ((SPEventContextClass *) pencil_parent_class)->setup(ec);
137 }
139 SPPencilContext *const pc = SP_PENCIL_CONTEXT(ec);
140 pc->is_drawing = false;
142 pc->anchor_statusbar = false;
143 }
145 static void
146 sp_pencil_context_dispose(GObject *object)
147 {
148 G_OBJECT_CLASS(pencil_parent_class)->dispose(object);
149 }
151 /** Snaps new node relative to the previous node. */
152 static void
153 spdc_endpoint_snap(SPPencilContext const *pc, NR::Point &p, guint const state)
154 {
155 spdc_endpoint_snap_rotation(pc, p, pc->p[0], state);
156 spdc_endpoint_snap_free(pc, p, state);
157 }
159 /**
160 * Callback for handling all pencil context events.
161 */
162 gint
163 sp_pencil_context_root_handler(SPEventContext *const ec, GdkEvent *event)
164 {
165 SPPencilContext *const pc = SP_PENCIL_CONTEXT(ec);
167 gint ret = FALSE;
169 switch (event->type) {
170 case GDK_BUTTON_PRESS:
171 ret = pencil_handle_button_press(pc, event->button);
172 break;
174 case GDK_MOTION_NOTIFY:
175 ret = pencil_handle_motion_notify(pc, event->motion);
176 break;
178 case GDK_BUTTON_RELEASE:
179 ret = pencil_handle_button_release(pc, event->button);
180 break;
182 case GDK_KEY_PRESS:
183 ret = pencil_handle_key_press(pc, get_group0_keyval (&event->key), event->key.state);
184 break;
186 default:
187 break;
188 }
190 if (!ret) {
191 gint (*const parent_root_handler)(SPEventContext *, GdkEvent *)
192 = ((SPEventContextClass *) pencil_parent_class)->root_handler;
193 if (parent_root_handler) {
194 ret = parent_root_handler(ec, event);
195 }
196 }
198 return ret;
199 }
201 static gint
202 pencil_handle_button_press(SPPencilContext *const pc, GdkEventButton const &bevent)
203 {
204 gint ret = FALSE;
205 SPEventContext *event_context = SP_EVENT_CONTEXT(pc);
206 if ( bevent.button == 1 && !event_context->space_panning) {
208 SPDrawContext *dc = SP_DRAW_CONTEXT (pc);
209 SPDesktop *desktop = SP_EVENT_CONTEXT_DESKTOP(dc);
210 Inkscape::Selection *selection = sp_desktop_selection(desktop);
212 if (Inkscape::have_viable_layer(desktop, dc->_message_context) == false) {
213 return TRUE;
214 }
216 NR::Point const button_w(bevent.x, bevent.y);
218 /* Find desktop coordinates */
219 NR::Point p = pc->desktop->w2d(button_w);
221 /* Test whether we hit any anchor. */
222 SPDrawAnchor *anchor = spdc_test_inside(pc, button_w);
224 switch (pc->state) {
225 case SP_PENCIL_CONTEXT_ADDLINE:
226 /* Current segment will be finished with release */
227 ret = TRUE;
228 break;
229 default:
230 /* Set first point of sequence */
231 if (bevent.state & GDK_CONTROL_MASK) {
232 /* Create object */
233 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
234 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
235 repr->setAttribute("sodipodi:type", "arc");
236 SPItem *item = SP_ITEM(desktop->currentLayer()->appendChildRepr(repr));
237 Inkscape::GC::release(repr);
238 NR::Matrix const i2d (sp_item_i2d_affine (item));
239 NR::Point pp = p * i2d;
240 sp_repr_set_svg_double (repr, "sodipodi:cx", pp[NR::X]);
241 sp_repr_set_svg_double (repr, "sodipodi:cy", pp[NR::Y]);
242 sp_repr_set_int (repr, "sodipodi:rx", 10);
243 sp_repr_set_int (repr, "sodipodi:ry", 10);
245 /* Set style */
246 sp_desktop_apply_style_tool(desktop, repr, "tools.shapes.arc", false);
248 item->updateRepr();
249 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Creating single point"));
250 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PENCIL, _("Create single point"));
251 ret = true;
252 break;
254 }
255 if (anchor) {
256 p = anchor->dp;
257 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Continuing selected path"));
258 } else {
260 if (!(bevent.state & GDK_SHIFT_MASK)) {
262 // This is the first click of a new curve; deselect item so that
263 // this curve is not combined with it (unless it is drawn from its
264 // anchor, which is handled by the sibling branch above)
265 selection->clear();
266 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Creating new path"));
267 SnapManager const &m = desktop->namedview->snap_manager;
268 p = m.freeSnap(Inkscape::Snapper::SNAPPOINT_NODE, p, NULL).getPoint();
269 } else if (selection->singleItem() && SP_IS_PATH(selection->singleItem())) {
270 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Appending to selected path"));
271 }
272 }
273 pc->sa = anchor;
274 spdc_set_startpoint(pc, p);
275 ret = TRUE;
276 break;
277 }
279 pc->is_drawing = true;
280 }
281 return ret;
282 }
284 static gint
285 pencil_handle_motion_notify(SPPencilContext *const pc, GdkEventMotion const &mevent)
286 {
287 if (mevent.state & GDK_CONTROL_MASK) {
288 // mouse was accidentally moved during Ctrl+click;
289 // ignore the motion and create a single point
290 return TRUE;
291 }
292 gint ret = FALSE;
293 SPDesktop *const dt = pc->desktop;
295 SPEventContext *event_context = SP_EVENT_CONTEXT(pc);
296 if (event_context->space_panning || mevent.state & GDK_BUTTON2_MASK || mevent.state & GDK_BUTTON3_MASK) {
297 // allow scrolling
298 return FALSE;
299 }
301 if ( ( mevent.state & GDK_BUTTON1_MASK ) && !pc->grab && pc->is_drawing) {
302 /* Grab mouse, so release will not pass unnoticed */
303 pc->grab = SP_CANVAS_ITEM(dt->acetate);
304 sp_canvas_item_grab(pc->grab, ( GDK_KEY_PRESS_MASK | GDK_BUTTON_PRESS_MASK |
305 GDK_BUTTON_RELEASE_MASK |
306 GDK_POINTER_MOTION_MASK ),
307 NULL, mevent.time);
308 }
310 /* Find desktop coordinates */
311 NR::Point p = dt->w2d(NR::Point(mevent.x, mevent.y));
313 /* Test whether we hit any anchor. */
314 SPDrawAnchor *anchor = spdc_test_inside(pc, NR::Point(mevent.x, mevent.y));
316 switch (pc->state) {
317 case SP_PENCIL_CONTEXT_ADDLINE:
318 /* Set red endpoint */
319 if (anchor) {
320 p = anchor->dp;
321 } else {
322 spdc_endpoint_snap(pc, p, mevent.state);
323 }
324 spdc_set_endpoint(pc, p);
325 ret = TRUE;
326 break;
327 default:
328 /* We may be idle or already freehand */
329 if ( mevent.state & GDK_BUTTON1_MASK && pc->is_drawing ) {
330 pc->state = SP_PENCIL_CONTEXT_FREEHAND;
331 if ( !pc->sa && !pc->green_anchor ) {
332 /* Create green anchor */
333 pc->green_anchor = sp_draw_anchor_new(pc, pc->green_curve, TRUE, pc->p[0]);
334 }
335 /** \todo
336 * fixme: I am not sure whether we want to snap to anchors
337 * in middle of freehand (Lauris)
338 */
339 if (anchor) {
340 p = anchor->dp;
341 } else if ((mevent.state & GDK_SHIFT_MASK) == 0) {
342 SnapManager const &m = dt->namedview->snap_manager;
343 p = m.freeSnap(Inkscape::Snapper::SNAPPOINT_NODE, p, NULL).getPoint();
344 }
345 if ( pc->npoints != 0 ) { // buttonpress may have happened before we entered draw context!
346 spdc_add_freehand_point(pc, p, mevent.state);
347 ret = TRUE;
348 }
350 if (anchor && !pc->anchor_statusbar) {
351 pc->_message_context->set(Inkscape::NORMAL_MESSAGE, _("<b>Release</b> here to close and finish the path."));
352 pc->anchor_statusbar = true;
353 } else if (!anchor && pc->anchor_statusbar) {
354 pc->_message_context->clear();
355 pc->anchor_statusbar = false;
356 } else if (!anchor) {
357 pc->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Drawing a freehand path"));
358 }
360 } else {
361 if (anchor && !pc->anchor_statusbar) {
362 pc->_message_context->set(Inkscape::NORMAL_MESSAGE, _("<b>Drag</b> to continue the path from this point."));
363 pc->anchor_statusbar = true;
364 } else if (!anchor && pc->anchor_statusbar) {
365 pc->_message_context->clear();
366 pc->anchor_statusbar = false;
367 }
368 }
369 break;
370 }
371 return ret;
372 }
374 static gint
375 pencil_handle_button_release(SPPencilContext *const pc, GdkEventButton const &revent)
376 {
377 gint ret = FALSE;
379 SPEventContext *event_context = SP_EVENT_CONTEXT(pc);
380 if ( revent.button == 1 && pc->is_drawing && !event_context->space_panning) {
381 SPDesktop *const dt = pc->desktop;
383 pc->is_drawing = false;
385 /* Find desktop coordinates */
386 NR::Point p = dt->w2d(NR::Point(revent.x, revent.y));
388 /* Test whether we hit any anchor. */
389 SPDrawAnchor *anchor = spdc_test_inside(pc, NR::Point(revent.x,
390 revent.y));
392 switch (pc->state) {
393 case SP_PENCIL_CONTEXT_IDLE:
394 /* Releasing button in idle mode means single click */
395 /* We have already set up start point/anchor in button_press */
396 if (!(revent.state & GDK_CONTROL_MASK)) {
397 // Ctrl+click creates a single point so only set context in ADDLINE mode when Ctrl isn't pressed
398 pc->state = SP_PENCIL_CONTEXT_ADDLINE;
399 }
400 ret = TRUE;
401 break;
402 case SP_PENCIL_CONTEXT_ADDLINE:
403 /* Finish segment now */
404 if (anchor) {
405 p = anchor->dp;
406 } else {
407 spdc_endpoint_snap(pc, p, revent.state);
408 }
409 pc->ea = anchor;
410 spdc_set_endpoint(pc, p);
411 spdc_finish_endpoint(pc);
412 pc->state = SP_PENCIL_CONTEXT_IDLE;
413 ret = TRUE;
414 break;
415 case SP_PENCIL_CONTEXT_FREEHAND:
416 /* Finish segment now */
417 /// \todo fixme: Clean up what follows (Lauris)
418 if (anchor) {
419 p = anchor->dp;
420 }
421 pc->ea = anchor;
422 /* Write curves to object */
424 dt->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Finishing freehand"));
426 spdc_concat_colors_and_flush(pc, FALSE);
427 pc->sa = NULL;
428 pc->ea = NULL;
429 if (pc->green_anchor) {
430 pc->green_anchor = sp_draw_anchor_destroy(pc->green_anchor);
431 }
432 pc->state = SP_PENCIL_CONTEXT_IDLE;
433 ret = TRUE;
434 break;
435 default:
436 break;
437 }
439 if (pc->grab) {
440 /* Release grab now */
441 sp_canvas_item_ungrab(pc->grab, revent.time);
442 pc->grab = NULL;
443 }
445 ret = TRUE;
446 }
447 return ret;
448 }
450 static void
451 pencil_cancel (SPPencilContext *const pc)
452 {
453 if (pc->grab) {
454 /* Release grab now */
455 sp_canvas_item_ungrab(pc->grab, 0);
456 pc->grab = NULL;
457 }
459 pc->is_drawing = false;
461 pc->state = SP_PENCIL_CONTEXT_IDLE;
463 sp_curve_reset(pc->red_curve);
464 sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(pc->red_bpath), NULL);
465 while (pc->green_bpaths) {
466 gtk_object_destroy(GTK_OBJECT(pc->green_bpaths->data));
467 pc->green_bpaths = g_slist_remove(pc->green_bpaths, pc->green_bpaths->data);
468 }
469 sp_curve_reset(pc->green_curve);
470 if (pc->green_anchor) {
471 pc->green_anchor = sp_draw_anchor_destroy(pc->green_anchor);
472 }
474 pc->_message_context->clear();
475 pc->_message_context->flash(Inkscape::NORMAL_MESSAGE, _("Drawing cancelled"));
477 sp_canvas_end_forced_full_redraws(pc->desktop->canvas);
478 }
481 static gint
482 pencil_handle_key_press(SPPencilContext *const pc, guint const keyval, guint const state)
483 {
484 gint ret = FALSE;
485 switch (keyval) {
486 case GDK_Up:
487 case GDK_Down:
488 case GDK_KP_Up:
489 case GDK_KP_Down:
490 // Prevent the zoom field from activation.
491 if (!mod_ctrl_only(state)) {
492 ret = TRUE;
493 }
494 break;
495 case GDK_Escape:
496 if (pc->npoints != 0) {
497 // if drawing, cancel, otherwise pass it up for deselecting
498 if (pc->is_drawing) {
499 pencil_cancel (pc);
500 ret = TRUE;
501 }
502 }
503 break;
504 case GDK_z:
505 case GDK_Z:
506 if (mod_ctrl_only(state) && pc->npoints != 0) {
507 // if drawing, cancel, otherwise pass it up for undo
508 if (pc->is_drawing) {
509 pencil_cancel (pc);
510 ret = TRUE;
511 }
512 }
513 break;
514 case GDK_g:
515 case GDK_G:
516 if (mod_shift_only(state)) {
517 sp_selection_to_guides();
518 ret = true;
519 }
520 break;
521 default:
522 break;
523 }
524 return ret;
525 }
527 /**
528 * Reset points and set new starting point.
529 */
530 static void
531 spdc_set_startpoint(SPPencilContext *const pc, NR::Point const p)
532 {
533 pc->npoints = 0;
534 pc->red_curve_is_valid = false;
535 if (in_svg_plane(p)) {
536 pc->p[pc->npoints++] = p;
537 }
538 }
540 /**
541 * Change moving endpoint position.
542 * <ul>
543 * <li>Ctrl constrains to moving to H/V direction, snapping in given direction.
544 * <li>Otherwise we snap freely to whatever attractors are available.
545 * </ul>
546 *
547 * Number of points is (re)set to 2 always, 2nd point is modified.
548 * We change RED curve.
549 */
550 static void
551 spdc_set_endpoint(SPPencilContext *const pc, NR::Point const p)
552 {
553 if (pc->npoints == 0) {
554 return;
555 /* May occur if first point wasn't in SVG plane (e.g. weird w2d transform, perhaps from bad
556 * zoom setting).
557 */
558 }
559 g_return_if_fail( pc->npoints > 0 );
561 sp_curve_reset(pc->red_curve);
562 if ( ( p == pc->p[0] )
563 || !in_svg_plane(p) )
564 {
565 pc->npoints = 1;
566 } else {
567 pc->p[1] = p;
568 pc->npoints = 2;
570 sp_curve_moveto(pc->red_curve, pc->p[0]);
571 sp_curve_lineto(pc->red_curve, pc->p[1]);
572 pc->red_curve_is_valid = true;
574 sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(pc->red_bpath), pc->red_curve);
575 }
576 }
578 /**
579 * Finalize addline.
580 *
581 * \todo
582 * fixme: I'd like remove red reset from concat colors (lauris).
583 * Still not sure, how it will make most sense.
584 */
585 static void
586 spdc_finish_endpoint(SPPencilContext *const pc)
587 {
588 if ( ( SP_CURVE_LENGTH(pc->red_curve) != 2 )
589 || ( SP_CURVE_SEGMENT(pc->red_curve, 0)->c(3) ==
590 SP_CURVE_SEGMENT(pc->red_curve, 1)->c(3) ) )
591 {
592 sp_curve_reset(pc->red_curve);
593 sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(pc->red_bpath), NULL);
594 } else {
595 /* Write curves to object. */
596 spdc_concat_colors_and_flush(pc, FALSE);
597 pc->sa = NULL;
598 pc->ea = NULL;
599 }
600 }
602 static void
603 spdc_add_freehand_point(SPPencilContext *pc, NR::Point p, guint /*state*/)
604 {
605 g_assert( pc->npoints > 0 );
606 g_return_if_fail(unsigned(pc->npoints) < G_N_ELEMENTS(pc->p));
608 if ( ( p != pc->p[ pc->npoints - 1 ] )
609 && in_svg_plane(p) )
610 {
611 pc->p[pc->npoints++] = p;
612 fit_and_split(pc);
613 }
614 }
616 static inline double
617 square(double const x)
618 {
619 return x * x;
620 }
622 static void
623 fit_and_split(SPPencilContext *pc)
624 {
625 g_assert( pc->npoints > 1 );
627 double const tolerance_sq = square( NR::expansion(pc->desktop->w2d())
628 * prefs_get_double_attribute_limited("tools.freehand.pencil",
629 "tolerance", 10.0, 1.0, 100.0) );
631 NR::Point b[4];
632 g_assert(is_zero(pc->req_tangent)
633 || is_unit_vector(pc->req_tangent));
634 NR::Point const tHatEnd(0, 0);
635 int const n_segs = sp_bezier_fit_cubic_full(b, NULL, pc->p, pc->npoints,
636 pc->req_tangent, tHatEnd, tolerance_sq, 1);
637 if ( n_segs > 0
638 && unsigned(pc->npoints) < G_N_ELEMENTS(pc->p) )
639 {
640 /* Fit and draw and reset state */
641 sp_curve_reset(pc->red_curve);
642 sp_curve_moveto(pc->red_curve, b[0]);
643 sp_curve_curveto(pc->red_curve, b[1], b[2], b[3]);
644 sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(pc->red_bpath), pc->red_curve);
645 pc->red_curve_is_valid = true;
646 } else {
647 /* Fit and draw and copy last point */
649 g_assert(!sp_curve_empty(pc->red_curve));
651 /* Set up direction of next curve. */
652 {
653 NArtBpath const &last_seg = *sp_curve_last_bpath(pc->red_curve);
654 pc->p[0] = last_seg.c(3);
655 pc->npoints = 1;
656 g_assert( last_seg.code == NR_CURVETO );
657 /* Relevance: validity of last_seg.c(2). */
658 NR::Point const req_vec( pc->p[0] - last_seg.c(2) );
659 pc->req_tangent = ( ( NR::is_zero(req_vec) || !in_svg_plane(req_vec) )
660 ? NR::Point(0, 0)
661 : NR::unit_vector(req_vec) );
662 }
664 sp_curve_append_continuous(pc->green_curve, pc->red_curve, 0.0625);
665 SPCurve *curve = sp_curve_copy(pc->red_curve);
667 /// \todo fixme:
668 SPCanvasItem *cshape = sp_canvas_bpath_new(sp_desktop_sketch(pc->desktop), curve);
669 sp_curve_unref(curve);
670 sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(cshape), pc->green_color, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT);
672 pc->green_bpaths = g_slist_prepend(pc->green_bpaths, cshape);
674 pc->red_curve_is_valid = false;
675 }
676 }
679 /*
680 Local Variables:
681 mode:c++
682 c-file-style:"stroustrup"
683 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
684 indent-tabs-mode:nil
685 fill-column:99
686 End:
687 */
688 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :