src/spray-context.cpp

   1 #define __SP_SPRAY_CONTEXT_C__
   2
   3 /*
   4  * Spray Tool
   5  *
   6  * Authors:
   7  *   Pierre-Antoine MARC
   8  *   Pierre CACLIN
   9  *   Aurel-Aimé MARMION
  10  *   Julien LERAY
  11  *   Benoît LAVORATA
  12  *   Vincent MONTAGNE
  13  *   Pierre BARBRY-BLOT
  14  *
  15  * Copyright (C) 2009 authors
  16  *
  17  * Released under GNU GPL, read the file 'COPYING' for more information
  18  */
  19
  20 #include "config.h"
  21
  22 #include <gtk/gtk.h>
  23 #include <gdk/gdkkeysyms.h>
  24 #include <glibmm/i18n.h>
  25
  26 #include <numeric>
  27
  28 #include "svg/svg.h"
  29 #include "display/canvas-bpath.h"
  30
  31 #include <glib/gmem.h>
  32 #include "macros.h"
  33 #include "document.h"
  34 #include "selection.h"
  35 #include "desktop.h"
  36 #include "desktop-events.h"
  37 #include "desktop-handles.h"
  38 #include "unistd.h"
  39 #include "desktop-style.h"
  40 #include "message-context.h"
  41 #include "pixmaps/cursor-spray.xpm"
  42 #include "pixmaps/cursor-spray-move.xpm"
  43 #include "pixmaps/cursor-thin.xpm"
  44 #include "pixmaps/cursor-thicken.xpm"
  45 #include "pixmaps/cursor-attract.xpm"
  46 #include "pixmaps/cursor-repel.xpm"
  47 #include "pixmaps/cursor-push.xpm"
  48 #include "pixmaps/cursor-roughen.xpm"
  49 #include "pixmaps/cursor-color.xpm"
  50 #include <boost/optional.hpp>
  51 #include "libnr/nr-matrix-ops.h"
  52 #include "libnr/nr-scale-translate-ops.h"
  53 #include "xml/repr.h"
  54 #include "context-fns.h"
  55 #include "sp-item.h"
  56 #include "inkscape.h"
  57 #include "color.h"
  58 #include "svg/svg-color.h"
  59 #include "splivarot.h"
  60 #include "sp-item-group.h"
  61 #include "sp-shape.h"
  62 #include "sp-path.h"
  63 #include "path-chemistry.h"
  64 #include "sp-gradient.h"
  65 #include "sp-stop.h"
  66 #include "sp-stop-fns.h"
  67 #include "sp-gradient-reference.h"
  68 #include "sp-linear-gradient.h"
  69 #include "sp-radial-gradient.h"
  70 #include "gradient-chemistry.h"
  71 #include "sp-text.h"
  72 #include "sp-flowtext.h"
  73 #include "display/canvas-bpath.h"
  74 #include "display/canvas-arena.h"
  75 #include "display/curve.h"
  76 #include "livarot/Shape.h"
  77 #include <2geom/isnan.h>
  78 #include <2geom/transforms.h>
  79 #include "preferences.h"
  80 #include "style.h"
  81 #include "box3d.h"
  82 #include "sp-item-transform.h"
  83 #include "filter-chemistry.h"
  84 #include "sp-gaussian-blur-fns.h"
  85 #include "sp-gaussian-blur.h"
  86
  87 #include "spray-context.h"
  88 #include "ui/dialog/dialog-manager.h"
  89 #include "helper/action.h"
  90
  91 #include <iostream>
  92 using namespace std;
  93
  94
  95 #define DDC_RED_RGBA 0xff0000ff
  96
  97 #define DYNA_MIN_WIDTH 1.0e-6
  98
  99 static void sp_spray_context_class_init(SPSprayContextClass *klass);
 100 static void sp_spray_context_init(SPSprayContext *ddc);
 101 static void sp_spray_context_dispose(GObject *object);
 102
 103 static void sp_spray_context_setup(SPEventContext *ec);
 104 static void sp_spray_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val);
 105 static gint sp_spray_context_root_handler(SPEventContext *ec, GdkEvent *event);
 106
 107 static SPEventContextClass *parent_class = 0;
 108
 109
 110
 111 // The following code implements NormalDistribution wich is used for the density of the spray
 112
 113
 114 /*
 115    RAND is a macro which returns a pseudo-random numbers from a uniform
 116    distribution on the interval [0 1]
 117 */
 118 #define RAND ((double) rand())/((double) RAND_MAX)
 119
 120 /*
 121    TWOPI = 2.0*pi
 122 */
 123 #define TWOPI 2.0*3.141592653589793238462643383279502884197169399375
 124
 125 /*
 126    RANDN is a macro which returns a pseudo-random numbers from a normal
 127    distribution with mean zero and standard deviation one. This macro uses Box
 128    Muller's algorithm
 129 */
 130 #define RANDN sqrt(-2.0*log(RAND))*cos(TWOPI*RAND)
 131
 132
 133 double NormalDistribution(double mu,double sigma)
 134 {
 135 /*
 136    This function returns a pseudo-random numbers from a normal distribution with
 137    mean equal at mu and standard deviation equal at sigma > 0
 138 */
 139
 140   return (mu+sigma*RANDN);
 141
 142 }
 143
 144 //End of NormalDistribution
 145
 146 GtkType sp_spray_context_get_type(void)
 147 {
 148     static GType type = 0;
 149     if (!type) {
 150         GTypeInfo info = {
 151             sizeof(SPSprayContextClass),
 152             NULL, NULL,
 153             (GClassInitFunc) sp_spray_context_class_init,
 154             NULL, NULL,
 155             sizeof(SPSprayContext),
 156             4,
 157             (GInstanceInitFunc) sp_spray_context_init,
 158             NULL,   /* value_table */
 159         };
 160         type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPSprayContext", &info, (GTypeFlags)0);
 161     }
 162     return type;
 163 }
 164
 165 static void sp_spray_context_class_init(SPSprayContextClass *klass)
 166 {
 167     GObjectClass *object_class = (GObjectClass *) klass;
 168     SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
 169
 170     parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
 171
 172     object_class->dispose = sp_spray_context_dispose;
 173
 174     event_context_class->setup = sp_spray_context_setup;
 175     event_context_class->set = sp_spray_context_set;
 176     event_context_class->root_handler = sp_spray_context_root_handler;
 177 }
 178
 179 /*Method to rotate items*/
 180 void sp_spray_rotate_rel(Geom::Point c,SPDesktop */*desktop*/,SPItem *item, Geom::Rotate const &rotation)
 181 {
 182
 183     Geom::Point center = c;
 184     Geom::Translate const s(c);
 185     Geom::Matrix affine = Geom::Matrix(s).inverse() * Geom::Matrix(rotation) * Geom::Matrix(s);
 186
 187     // Rotate item.
 188     sp_item_set_i2d_affine(item, sp_item_i2d_affine(item) * (Geom::Matrix)affine);
 189     // Use each item's own transform writer, consistent with sp_selection_apply_affine()
 190     sp_item_write_transform(item, SP_OBJECT_REPR(item), item->transform);
 191
 192     // Restore the center position (it's changed because the bbox center changed)
 193     if (item->isCenterSet()) {
 194         item->setCenter(c);
 195         item->updateRepr();
 196     }
 197 }
 198
 199 /*Method to scale items*/
 200 void sp_spray_scale_rel(Geom::Point c, SPDesktop */*desktop*/, SPItem *item, Geom::Scale  const &scale)
 201 {
 202         Geom::Translate const s(c);
 203
 204
 205         sp_item_set_i2d_affine(item, sp_item_i2d_affine(item) * s.inverse() * scale * s  );
 206         sp_item_write_transform(item, SP_OBJECT_REPR(item), item->transform);
 207
 208
 209 }
 210
 211 static void sp_spray_context_init(SPSprayContext *tc)
 212 {
 213    SPEventContext *event_context = SP_EVENT_CONTEXT(tc);
 214
 215
 216
 217     event_context->cursor_shape = cursor_spray_xpm;
 218     event_context->hot_x = 4;
 219     event_context->hot_y = 4;
 220
 221     /* attributes */
 222     tc->dragging = FALSE;
 223     tc->distrib = 1;
 224     tc->width = 0.2;
 225     tc->force = 0.2;
 226     tc->ratio = 0;
 227     tc->tilt=0;
 228     tc->mean = 0.2;
 229     tc->rot_variation=0;
 230     tc->standard_deviation=0.2;
 231     tc->scale=1;
 232     tc->scale_variation = 1;
 233     tc->pressure = TC_DEFAULT_PRESSURE;
 234
 235     tc->is_dilating = false;
 236     tc->has_dilated = false;
 237
 238     tc->do_h = true;
 239     tc->do_s = true;
 240     tc->do_l = true;
 241     tc->do_o = false;
 242
 243     new (&tc->style_set_connection) sigc::connection();
 244 }
 245
 246 static void sp_spray_context_dispose(GObject *object)
 247 {
 248     SPSprayContext *tc = SP_SPRAY_CONTEXT(object);
 249
 250     tc->style_set_connection.disconnect();
 251     tc->style_set_connection.~connection();
 252
 253     if (tc->dilate_area) {
 254         gtk_object_destroy(GTK_OBJECT(tc->dilate_area));
 255         tc->dilate_area = NULL;
 256     }
 257
 258     if (tc->_message_context) {
 259         delete tc->_message_context;
 260     }
 261
 262     G_OBJECT_CLASS(parent_class)->dispose(object);
 263 }
 264
 265 bool is_transform_modes(gint mode)
 266 {
 267     return (mode == SPRAY_MODE_COPY ||
 268             mode == SPRAY_MODE_CLONE ||
 269             mode == SPRAY_MODE_SINGLE_PATH ||
 270             mode == SPRAY_OPTION);
 271 }
 272
 273 void sp_spray_update_cursor(SPSprayContext *tc, bool /*with_shift*/)
 274 {
 275    SPEventContext *event_context = SP_EVENT_CONTEXT(tc);
 276    SPDesktop *desktop = event_context->desktop;
 277
 278                 guint num = 0;
 279                 gchar *sel_message = NULL;
 280                 if (!desktop->selection->isEmpty()) {
 281                     num = g_slist_length((GSList *) desktop->selection->itemList());
 282                     sel_message = g_strdup_printf(ngettext("<b>%i</b> object selected","<b>%i</b> objects selected",num), num);
 283                 } else {
 284                     sel_message = g_strdup_printf(_("<b>Nothing</b> selected"));
 285                 }
 286
 287
 288    switch (tc->mode) {
 289        case SPRAY_MODE_COPY:
 290            tc->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("%s. Drag, click or scroll to spray <b>copies</b> of the initial selection"), sel_message);
 291            break;
 292        case SPRAY_MODE_CLONE:
 293            tc->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("%s. Drag, click or scroll to spray <b>clones</b> of the initial selection"), sel_message);
 294            break;
 295        case SPRAY_MODE_SINGLE_PATH:
 296            tc->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("%s. Drag, click or scroll to spray in a <b>single path</b> of the initial selection"), sel_message);
 297            break;
 298        case SPRAY_OPTION:
 299            tc->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("%s. Modify <b>spray</b> options"), sel_message);
 300            break;
 301    }
 302    sp_event_context_update_cursor(event_context);
 303    g_free(sel_message);
 304 }
 305
 306 static void sp_spray_context_setup(SPEventContext *ec)
 307 {
 308     SPSprayContext *tc = SP_SPRAY_CONTEXT(ec);
 309
 310     if (((SPEventContextClass *) parent_class)->setup)
 311         ((SPEventContextClass *) parent_class)->setup(ec);
 312
 313     {
 314         /* TODO: have a look at sp_dyna_draw_context_setup where the same is done.. generalize? at least make it an arcto! */
 315         SPCurve *c = new SPCurve();
 316         const double C1 = 0.552;
 317         c->moveto(-1,0);
 318         c->curveto(-1, C1, -C1, 1, 0, 1 );
 319         c->curveto(C1, 1, 1, C1, 1, 0 );
 320         c->curveto(1, -C1, C1, -1, 0, -1 );
 321         c->curveto(-C1, -1, -1, -C1, -1, 0 );
 322         c->closepath();
 323         tc->dilate_area = sp_canvas_bpath_new(sp_desktop_controls(ec->desktop), c);
 324         c->unref();
 325         sp_canvas_bpath_set_fill(SP_CANVAS_BPATH(tc->dilate_area), 0x00000000,(SPWindRule)0);
 326         sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(tc->dilate_area), 0xff9900ff, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT);
 327         sp_canvas_item_hide(tc->dilate_area);
 328     }
 329
 330     tc->is_drawing = false;
 331
 332     tc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
 333
 334     sp_event_context_read(ec, "distrib");
 335     sp_event_context_read(ec, "width");
 336     sp_event_context_read(ec, "ratio");
 337     sp_event_context_read(ec, "tilt");
 338     sp_event_context_read(ec, "rot_variation");
 339     sp_event_context_read(ec, "scale_variation");
 340     sp_event_context_read(ec, "mode");
 341     sp_event_context_read(ec, "population");
 342     sp_event_context_read(ec, "force");
 343     sp_event_context_read(ec, "mean");
 344     sp_event_context_read(ec, "standard_deviation");
 345     sp_event_context_read(ec, "usepressure");
 346     sp_event_context_read(ec, "Scale");
 347     sp_event_context_read(ec, "doh");
 348     sp_event_context_read(ec, "dol");
 349     sp_event_context_read(ec, "dos");
 350     sp_event_context_read(ec, "doo");
 351
 352     ;
 353
 354     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 355     if (prefs->getBool("/tools/spray/selcue")) {
 356         ec->enableSelectionCue();
 357     }
 358
 359     if (prefs->getBool("/tools/spray/gradientdrag")) {
 360         ec->enableGrDrag();
 361     }
 362 }
 363
 364 static void sp_spray_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val)
 365 {
 366     SPSprayContext *tc = SP_SPRAY_CONTEXT(ec);
 367     Glib::ustring path = val->getEntryName();
 368
 369     if (path == "width") {
 370         tc->width = 0.01 * CLAMP(val->getInt(10), 1, 100);
 371     } else if (path == "mode") {
 372         tc->mode = val->getInt();
 373         sp_spray_update_cursor(tc, false);
 374     } else if (path == "distribution") {
 375         tc->distrib = val->getInt(1);
 376     } else if (path == "population") {
 377         tc->population = 0.01 * CLAMP(val->getInt(10), 1, 100);
 378      } else if (path == "tilt") {
 379         tc->tilt = CLAMP(val->getDouble(0.1), 0, 1000.0);
 380      } else if (path == "ratio") {
 381         tc->ratio = CLAMP(val->getDouble(), 0.0, 0.9);
 382     } else if (path == "force") {
 383         tc->force = CLAMP(val->getDouble(1.0), 0, 1.0);
 384     } else if (path == "rotation_variation") {
 385         tc->rot_variation = CLAMP(val->getDouble(0), 0, 10.0);
 386     } else if (path == "scale_variation") {
 387         tc->scale_variation = CLAMP(val->getDouble(1.0), 0, 10.0);
 388     } else if (path == "mean") {
 389         tc->mean = 0.01 * CLAMP(val->getInt(10), 1, 100);
 390     } else if (path == "standard_deviation") {
 391         tc->standard_deviation = 0.01 * CLAMP(val->getInt(10), 1, 100);
 392     } else if (path == "usepressure") {
 393         tc->usepressure = val->getBool();
 394     } else if (path == "doh") {
 395         tc->do_h = val->getBool();
 396     } else if (path == "dos") {
 397         tc->do_s = val->getBool();
 398     } else if (path == "dol") {
 399         tc->do_l = val->getBool();
 400     } else if (path == "doo") {
 401         tc->do_o = val->getBool();
 402     }
 403 }
 404
 405 static void sp_spray_extinput(SPSprayContext *tc, GdkEvent *event)
 406 {
 407     if (gdk_event_get_axis (event, GDK_AXIS_PRESSURE, &tc->pressure))
 408         tc->pressure = CLAMP (tc->pressure, TC_MIN_PRESSURE, TC_MAX_PRESSURE);
 409     else
 410         tc->pressure = TC_DEFAULT_PRESSURE;
 411 }
 412
 413 double get_dilate_radius(SPSprayContext *tc)
 414 {
 415
 416     return 250 * tc->width/SP_EVENT_CONTEXT(tc)->desktop->current_zoom();
 417
 418
 419 }
 420
 421 double get_path_force(SPSprayContext *tc)
 422 {
 423     double force = 8 * (tc->usepressure? tc->pressure : TC_DEFAULT_PRESSURE)
 424         /sqrt(SP_EVENT_CONTEXT(tc)->desktop->current_zoom());
 425     if (force > 3) {
 426         force += 4 * (force - 3);
 427     }
 428     return force * tc->force;
 429 }
 430
 431 double get_path_mean(SPSprayContext *tc)
 432 {
 433     return tc->mean;
 434 }
 435
 436 double get_path_standard_deviation(SPSprayContext *tc)
 437 {
 438     return tc->standard_deviation;
 439 }
 440
 441 double get_move_force(SPSprayContext *tc)
 442 {
 443     double force = (tc->usepressure? tc->pressure : TC_DEFAULT_PRESSURE);
 444     return force * tc->force;
 445 }
 446
 447 double get_move_mean(SPSprayContext *tc)
 448 {
 449     return tc->mean;
 450 }
 451
 452 double get_move_standard_deviation(SPSprayContext *tc)
 453 {
 454     return tc->standard_deviation;
 455 }
 456
 457 /* Method to handle the distribution of the items */
 458
 459
 460 void random_position( double &r, double &p, double &a, double &s, int choix)
 461 {
 462        if (choix == 0) // Mode 1 : uniform repartition
 463     {
 464         r = (1-pow(g_random_double_range(0, 1),2));
 465         p = g_random_double_range(0, M_PI*2);
 466     }
 467     if (choix == 1) //Mode 0 : gaussian repartition
 468     {
 469         double r_temp =-1;
 470 while(!((r_temp>=0)&&(r_temp<=1)))
 471 {
 472          r_temp = NormalDistribution(a,s/4);
 473 }
 474 // generates a number following a normal distribution
 475         p = g_random_double_range(0, M_PI*2);
 476         r=r_temp;
 477        /* if (r_temp<=0) r=0;
 478         else
 479         {
 480             if (r_temp>1) r=1;
 481             else r = r_temp;
 482         }*/
 483     }
 484 }
 485
 486
 487
 488
 489
 490 bool sp_spray_dilate_recursive(SPDesktop *desktop,
 491                                Inkscape::Selection *selection,
 492                                SPItem *item,
 493                                Geom::Point p,
 494                                Geom::Point /*vector*/,
 495                                gint mode,
 496                                double radius,
 497                                double /*force*/,
 498                                double population,
 499                                double &scale,
 500                                double scale_variation,
 501                                bool /*reverse*/,
 502                                double mean,
 503                                double standard_deviation,
 504                                double ratio,
 505                                double tilt,
 506                                double rotation_variation,
 507                                gint _distrib )
 508 {
 509
 510
 511
 512     bool did = false;
 513
 514     if (SP_IS_BOX3D(item) /*&& !is_transform_modes(mode)*/) {
 515         // convert 3D boxes to ordinary groups before spraying their shapes
 516         item = SP_ITEM(box3d_convert_to_group(SP_BOX3D(item)));
 517         selection->add(item);
 518     }
 519
 520         if (mode == SPRAY_MODE_COPY) {
 521
 522             Geom::OptRect a = item->getBounds(sp_item_i2doc_affine(item));
 523             if (a) {
 524                 double dr; double dp;
 525                 random_position(dr,dp,mean,standard_deviation,_distrib);
 526                 dr=dr*radius;
 527                 double _fid = g_random_double_range(0,1);
 528                 SPItem *item_copied;
 529                 double angle = g_random_double_range(1.0 - rotation_variation/2.0, 1.0 + rotation_variation/2.0);
 530                 double _scale = g_random_double_range( 1.0 - scale_variation/2.0, 1.0 + scale_variation/2.0);
 531                 if(_fid<=population)
 532                 {
 533                           // duplicate
 534                             SPDocument *doc = SP_OBJECT_DOCUMENT(item);
 535                             Inkscape::XML::Document* xml_doc = sp_document_repr_doc(doc);
 536                             Inkscape::XML::Node *old_repr = SP_OBJECT_REPR(item);
 537                             Inkscape::XML::Node *parent = old_repr->parent();
 538                             Inkscape::XML::Node *copy = old_repr->duplicate(xml_doc);
 539                             parent->appendChild(copy);
 540
 541                             SPObject *new_obj = doc->getObjectByRepr(copy);
 542                             item_copied = (SPItem *) new_obj;   //convertion object->item
 543                             Geom::Point center=item->getCenter();
 544                             sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(_scale,_scale));
 545                             sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(scale,scale));
 546
 547                             sp_spray_rotate_rel(center,desktop,item_copied, Geom::Rotate(angle));
 548                             Geom::Point move = (Geom::Point(cos(tilt)*cos(dp)*dr/(1-ratio)+sin(tilt)*sin(dp)*dr/(1+ratio),-sin(tilt)*cos(dp)*dr/(1-ratio)+cos(tilt)*sin(dp)*dr/(1+ratio)))+(p-a->midpoint());//Move the cursor p
 549                             sp_item_move_rel(item_copied, Geom::Translate(move[Geom::X], -move[Geom::Y]));
 550
 551
 552
 553
 554
 555                         did = true;
 556                         }
 557             }
 558
 559         } else if (mode == SPRAY_MODE_SINGLE_PATH) {
 560
 561
 562             SPItem *father; //initial Object
 563             SPItem *item_copied;//Projected Object
 564             SPItem *unionResult;//previous union
 565             SPItem *son;//father copy
 566
 567             int i=1;
 568             for (GSList *items = g_slist_copy((GSList *) selection->itemList());
 569                     items != NULL;
 570                     items = items->next) {
 571
 572                 SPItem *item1 = (SPItem *) items->data;
 573                 if (i==1) {
 574                     father=item1;
 575                 }
 576                 if (i==2) {
 577                     unionResult=item1;
 578                 }
 579                 i++;
 580             }
 581             SPDocument *doc = SP_OBJECT_DOCUMENT(father);
 582             Inkscape::XML::Document* xml_doc = sp_document_repr_doc(doc);
 583             Inkscape::XML::Node *old_repr = SP_OBJECT_REPR(father);
 584             //SPObject *old_obj = doc->getObjectByRepr(old_repr);
 585             Inkscape::XML::Node *parent = old_repr->parent();
 586
 587             Geom::OptRect a = father->getBounds(sp_item_i2doc_affine(father));
 588             if (a) {
 589                 double dr; double dp; //initialisation des variables
 590                 random_position(dr,dp,mean,standard_deviation,_distrib);
 591                 dr=dr*radius;
 592                 double _fid = g_random_double_range(0,1);
 593                 double angle = g_random_double_range(1.0 - rotation_variation/2.0, 1.0 + rotation_variation/2.0);
 594                 double _scale = g_random_double_range( 1.0 - scale_variation/2.0, 1.0 + scale_variation/2.0);
 595                 if (i==2) {
 596                     Inkscape::XML::Node *copy1 = old_repr->duplicate(xml_doc);
 597                     parent->appendChild(copy1);
 598                     SPObject *new_obj1 = doc->getObjectByRepr(copy1);
 599                     son = (SPItem *) new_obj1;   //conversion object->item
 600                     unionResult=son;
 601                     Inkscape::GC::release(copy1);
 602                    }
 603
 604                 if (_fid<=population) { //Rules the population of objects sprayed
 605                     // duplicates the father
 606                     Inkscape::XML::Node *copy2 = old_repr->duplicate(xml_doc);
 607                     parent->appendChild(copy2);
 608                     SPObject *new_obj2 = doc->getObjectByRepr(copy2);
 609                     item_copied = (SPItem *) new_obj2;
 610
 611                     Geom::Point move = (Geom::Point(cos(tilt)*cos(dp)*dr/(1-ratio)+sin(tilt)*sin(dp)*dr/(1+ratio),-sin(tilt)*cos(dp)*dr/(1-ratio)+cos(tilt)*sin(dp)*dr/(1+ratio)))+(p-a->midpoint());//Move around the cursor
 612
 613                             Geom::Point center=father->getCenter();
 614                             sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(_scale,_scale));
 615                             sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(scale,scale));
 616                             sp_spray_rotate_rel(center,desktop,item_copied, Geom::Rotate(angle));
 617                             sp_item_move_rel(item_copied, Geom::Translate(move[Geom::X], -move[Geom::Y]));
 618
 619 //unionResult and duplication
 620                     selection->clear();
 621                     selection->add(item_copied);
 622                     selection->add(unionResult);
 623                     sp_selected_path_union(selection->desktop());
 624                     selection->add(father);
 625                     Inkscape::GC::release(copy2);
 626                     did = true;
 627                 }
 628
 629             }
 630         } else if (mode == SPRAY_MODE_CLONE) {
 631
 632         Geom::OptRect a = item->getBounds(sp_item_i2doc_affine(item));
 633                 if (a) {
 634                 double dr; double dp;
 635                 random_position(dr,dp,mean,standard_deviation,_distrib);
 636                 dr=dr*radius;
 637                 double _fid = g_random_double_range(0,1);
 638                 double angle = g_random_double_range(1.0 - rotation_variation/2.0, 1.0 + rotation_variation/2.0);
 639                 double _scale = g_random_double_range( 1.0 - scale_variation/2.0, 1.0 + scale_variation/2.0);
 640
 641         if(_fid<=population)
 642                 {
 643                             SPItem *item_copied;
 644                             SPDocument *doc = SP_OBJECT_DOCUMENT(item);
 645                             Inkscape::XML::Document* xml_doc = sp_document_repr_doc(doc);
 646                             Inkscape::XML::Node *old_repr = SP_OBJECT_REPR(item);
 647                             Inkscape::XML::Node *parent = old_repr->parent();
 648
 649                             //Creation of the clone
 650                             Inkscape::XML::Node *clone = xml_doc->createElement("svg:use");
 651                             parent->appendChild(clone); // Ad the clone to the list of the father's sons
 652                             clone->setAttribute("xlink:href", g_strdup_printf("#%s", old_repr->attribute("id")), false); // Generates the link between father and son attributes
 653
 654                             SPObject *clone_object = doc->getObjectByRepr(clone);
 655                             item_copied = (SPItem *) clone_object;//conversion object->item
 656                               Geom::Point center=item->getCenter();
 657                             sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(_scale,_scale));
 658                             sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(scale,scale));
 659                             sp_spray_rotate_rel(center,desktop,item_copied, Geom::Rotate(angle));
 660                             Geom::Point move = (Geom::Point(cos(tilt)*cos(dp)*dr/(1-ratio)+sin(tilt)*sin(dp)*dr/(1+ratio),-sin(tilt)*cos(dp)*dr/(1-ratio)+cos(tilt)*sin(dp)*dr/(1+ratio)))+(p-a->midpoint());
 661                             sp_item_move_rel(item_copied, Geom::Translate(move[Geom::X], -move[Geom::Y]));
 662
 663                             Inkscape::GC::release(clone);
 664
 665                             did = true;
 666                 } }}
 667                 return did;
 668
 669 }
 670
 671
 672 bool sp_spray_color_recursive(guint /*mode*/,
 673                               SPItem */*item*/,
 674                               SPItem */*item_at_point*/,
 675                               guint32 /*fill_goal*/,
 676                               bool /*do_fill*/,
 677                               guint32 /*stroke_goal*/,
 678                               bool /*do_stroke*/,
 679                               float /*opacity_goal*/,
 680                               bool /*do_opacity*/,
 681                               bool /*do_blur*/,
 682                               bool /*reverse*/,
 683                               Geom::Point /*p*/,
 684                               double /*radius*/,
 685                               double /*force*/,
 686                               bool /*do_h*/,
 687                               bool /*do_s*/,
 688                               bool /*do_l*/,
 689                               bool /*do_o*/)
 690 {
 691     bool did = false;
 692
 693     return did;
 694 }
 695
 696
 697 bool sp_spray_dilate(SPSprayContext *tc, Geom::Point /*event_p*/, Geom::Point p, Geom::Point vector, bool reverse)
 698 {
 699     Inkscape::Selection *selection = sp_desktop_selection(SP_EVENT_CONTEXT(tc)->desktop);
 700     SPDesktop *desktop = SP_EVENT_CONTEXT(tc)->desktop;
 701
 702
 703     if (selection->isEmpty()) {
 704         return false;
 705     }
 706
 707     bool did = false;
 708     double radius = get_dilate_radius(tc);
 709
 710
 711
 712     bool do_fill = false, do_stroke = false, do_opacity = false;
 713     guint32 fill_goal = sp_desktop_get_color_tool(desktop, "/tools/spray", true, &do_fill);
 714     guint32 stroke_goal = sp_desktop_get_color_tool(desktop, "/tools/spray", false, &do_stroke);
 715     double opacity_goal = sp_desktop_get_master_opacity_tool(desktop, "/tools/spray", &do_opacity);
 716     if (reverse) {
 717         // RGB inversion
 718         fill_goal = SP_RGBA32_U_COMPOSE(
 719             (255 - SP_RGBA32_R_U(fill_goal)),
 720             (255 - SP_RGBA32_G_U(fill_goal)),
 721             (255 - SP_RGBA32_B_U(fill_goal)),
 722             (255 - SP_RGBA32_A_U(fill_goal)));
 723         stroke_goal = SP_RGBA32_U_COMPOSE(
 724             (255 - SP_RGBA32_R_U(stroke_goal)),
 725             (255 - SP_RGBA32_G_U(stroke_goal)),
 726             (255 - SP_RGBA32_B_U(stroke_goal)),
 727             (255 - SP_RGBA32_A_U(stroke_goal)));
 728         opacity_goal = 1 - opacity_goal;
 729     }
 730
 731     double path_force = get_path_force(tc);
 732     if (radius == 0 || path_force == 0) {
 733         return false;
 734     }
 735     double path_mean = get_path_mean(tc);
 736     if (radius == 0 || path_mean == 0) {
 737         return false;
 738     }
 739     double path_standard_deviation = get_path_standard_deviation(tc);
 740     if (radius == 0 || path_standard_deviation == 0) {
 741         return false;
 742     }
 743     double move_force = get_move_force(tc);
 744     double move_mean = get_move_mean(tc);
 745     double move_standard_deviation = get_move_standard_deviation(tc);
 746
 747
 748     for (GSList *items = g_slist_copy((GSList *) selection->itemList());
 749          items != NULL;
 750          items = items->next) {
 751
 752         SPItem *item = (SPItem *) items->data;
 753
 754         if (is_transform_modes(tc->mode)) {
 755             if (sp_spray_dilate_recursive (desktop,selection, item, p, vector, tc->mode, radius, move_force, tc->population,tc->scale, tc->scale_variation, reverse, move_mean, move_standard_deviation,tc->ratio,tc->tilt, tc->rot_variation, tc->distrib))
 756                 did = true;
 757         } else {
 758             if (sp_spray_dilate_recursive (desktop,selection, item, p, vector, tc->mode, radius, path_force, tc->population,tc->scale, tc->scale_variation, reverse, path_mean, path_standard_deviation,tc->ratio,tc->tilt, tc->rot_variation, tc->distrib))
 759                 did = true;
 760         }
 761     }
 762
 763     return did;
 764 }
 765
 766 void sp_spray_update_area(SPSprayContext *tc)
 767 {
 768         double radius = get_dilate_radius(tc);
 769         Geom::Matrix const sm ( Geom::Scale(radius/(1-tc->ratio), radius/(1+tc->ratio)) );
 770         sp_canvas_item_affine_absolute(tc->dilate_area,   (sm* Geom::Rotate(tc->tilt))* Geom::Translate(SP_EVENT_CONTEXT(tc)->desktop->point()));
 771         sp_canvas_item_show(tc->dilate_area);
 772 }
 773
 774 void sp_spray_switch_mode(SPSprayContext *tc, gint mode, bool with_shift)
 775 {
 776     SP_EVENT_CONTEXT(tc)->desktop->setToolboxSelectOneValue ("spray_tool_mode", mode); //sélectionne le bouton numéro "mode"
 777     // need to set explicitly, because the prefs may not have changed by the previous
 778     tc->mode = mode;
 779     sp_spray_update_cursor (tc, with_shift);
 780 }
 781
 782 void sp_spray_switch_mode_temporarily(SPSprayContext *tc, gint mode, bool with_shift)
 783 {
 784     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 785    // Juggling about so that prefs have the old value but tc->mode and the button show new mode:
 786    gint now_mode = prefs->getInt("/tools/spray/mode", 0);
 787    SP_EVENT_CONTEXT(tc)->desktop->setToolboxSelectOneValue ("spray_tool_mode", mode);
 788    // button has changed prefs, restore
 789    prefs->setInt("/tools/spray/mode", now_mode);
 790    // changing prefs changed tc->mode, restore back :)
 791    tc->mode = mode;
 792    sp_spray_update_cursor (tc, with_shift);
 793 }
 794
 795 gint sp_spray_context_root_handler(SPEventContext *event_context,
 796                                   GdkEvent *event)
 797 {
 798     SPSprayContext *tc = SP_SPRAY_CONTEXT(event_context);
 799     SPDesktop *desktop = event_context->desktop;
 800
 801     gint ret = FALSE;
 802
 803     switch (event->type) {
 804         case GDK_ENTER_NOTIFY:
 805             sp_canvas_item_show(tc->dilate_area);
 806             break;
 807         case GDK_LEAVE_NOTIFY:
 808             sp_canvas_item_hide(tc->dilate_area);
 809             break;
 810         case GDK_BUTTON_PRESS:
 811             if (event->button.button == 1 && !event_context->space_panning) {
 812
 813                 if (Inkscape::have_viable_layer(desktop, tc->_message_context) == false) {
 814                     return TRUE;
 815                 }
 816
 817                 Geom::Point const motion_w(event->button.x,
 818                                          event->button.y);
 819                 Geom::Point const motion_dt(desktop->w2d(motion_w));
 820                 tc->last_push = desktop->dt2doc(motion_dt);
 821
 822                 sp_spray_extinput(tc, event);
 823
 824                 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 3);
 825                 tc->is_drawing = true;
 826                 tc->is_dilating = true;
 827                                 tc->has_dilated = false;
 828
 829
 830
 831                 if(tc->is_dilating && event->button.button == 1 && !event_context->space_panning)
 832
 833                                 sp_spray_dilate (tc, motion_w, desktop->dt2doc(motion_dt), Geom::Point(0,0), MOD__SHIFT);
 834
 835
 836
 837                                                           tc->has_dilated=true;
 838
 839                 ret = TRUE;
 840             }
 841             break;
 842         case GDK_MOTION_NOTIFY:
 843         {
 844             Geom::Point const motion_w(event->motion.x,
 845                                      event->motion.y);
 846             Geom::Point motion_dt(desktop->w2d(motion_w));
 847             Geom::Point motion_doc(desktop->dt2doc(motion_dt));
 848             sp_spray_extinput(tc, event);
 849
 850             // draw the dilating cursor
 851                 double radius = get_dilate_radius(tc);
 852                 Geom::Matrix const sm (Geom::Scale(radius/(1-tc->ratio), radius/(1+tc->ratio)) );
 853                 sp_canvas_item_affine_absolute(tc->dilate_area, (sm*Geom::Rotate(tc->tilt))*Geom::Translate(desktop->w2d(motion_w)));
 854                 sp_canvas_item_show(tc->dilate_area);
 855
 856                 guint num = 0;
 857                 if (!desktop->selection->isEmpty()) {
 858                     num = g_slist_length((GSList *) desktop->selection->itemList());
 859                 }
 860                 if (num == 0) {
 861                     tc->_message_context->flash(Inkscape::ERROR_MESSAGE, _("<b>Nothing selected!</b> Select objects to spray."));
 862                 }
 863
 864             // dilating:
 865             if (tc->is_drawing && ( event->motion.state & GDK_BUTTON1_MASK )) {
 866                 sp_spray_dilate (tc, motion_w, motion_doc, motion_doc - tc->last_push, event->button.state & GDK_SHIFT_MASK? true : false);
 867                 //tc->last_push = motion_doc;
 868                 tc->has_dilated = true;
 869
 870                 // it's slow, so prevent clogging up with events
 871                 gobble_motion_events(GDK_BUTTON1_MASK);
 872                 return TRUE;
 873             }
 874
 875         }
 876         break;
 877 /*Spray with the scroll*/
 878         case GDK_SCROLL:
 879                {
 880               if (event->scroll.state & GDK_BUTTON1_MASK)
 881                                   {
 882                   double temp ;
 883                   temp=tc->population;
 884                   tc->population=1.0;
 885                   desktop->setToolboxAdjustmentValue ("population", tc->population * 100);
 886                   Geom::Point const scroll_w(event->button.x,event->button.y);
 887                   Geom::Point const scroll_dt = desktop->point();;
 888                   Geom::Point motion_doc(desktop->dt2doc(scroll_dt));
 889                        switch (event->scroll.direction)
 890                        {
 891                          case GDK_SCROLL_UP:
 892                            {
 893                                    if (Inkscape::have_viable_layer(desktop, tc->_message_context) == false)
 894                                    {
 895                                     return TRUE;
 896                                    }
 897                                    tc->last_push = desktop->dt2doc(scroll_dt);
 898                                    sp_spray_extinput(tc, event);
 899                                    sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 3);
 900                                    tc->is_drawing = true;
 901                                    tc->is_dilating = true;
 902                                    tc->has_dilated = false;
 903                                    if(tc->is_dilating && !event_context->space_panning)
 904
 905                                                         sp_spray_dilate (tc, scroll_w, desktop->dt2doc(scroll_dt), Geom::Point(0,0),false);
 906
 907
 908
 909                                    tc->has_dilated=true;
 910                                    tc->population=temp;
 911
 912                                    desktop->setToolboxAdjustmentValue ("population", tc->population * 100);
 913
 914                                    ret = TRUE;
 915                            }
 916                                break;
 917                            case GDK_SCROLL_DOWN:
 918                            {
 919                                    if (Inkscape::have_viable_layer(desktop, tc->_message_context) == false)
 920                                                                    {
 921                                                                     return TRUE;
 922                                                                    }
 923                                                                    tc->last_push = desktop->dt2doc(scroll_dt);
 924                                                                    sp_spray_extinput(tc, event);
 925                                                                    sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 3);
 926                                                                    tc->is_drawing = true;
 927                                                                    tc->is_dilating = true;
 928                                                                    tc->has_dilated = false;
 929                                                                    if(tc->is_dilating && !event_context->space_panning)
 930                                                                                         sp_spray_dilate (tc, scroll_w, desktop->dt2doc(scroll_dt), Geom::Point(0,0), false);
 931
 932                                                                    tc->has_dilated=true;
 933
 934                                                                    ret = TRUE;
 935
 936
 937                            }
 938                                break;
 939 case GDK_SCROLL_RIGHT:
 940                            {} break;
 941 case GDK_SCROLL_LEFT:
 942                            {} break;
 943                                                                                                                    }
 944                                   }
 945
 946
 947                                break;
 948
 949                }
 950     case GDK_BUTTON_RELEASE:
 951     {
 952         Geom::Point const motion_w(event->button.x, event->button.y);
 953         Geom::Point const motion_dt(desktop->w2d(motion_w));
 954
 955         sp_canvas_end_forced_full_redraws(desktop->canvas);
 956         tc->is_drawing = false;
 957
 958         if (tc->is_dilating && event->button.button == 1 && !event_context->space_panning) {
 959             if (!tc->has_dilated) {
 960                 // if we did not rub, do a light tap
 961                 tc->pressure = 0.03;
 962                 sp_spray_dilate (tc, motion_w, desktop->dt2doc(motion_dt), Geom::Point(0,0), MOD__SHIFT);
 963             }
 964             tc->is_dilating = false;
 965             tc->has_dilated = false;
 966             switch (tc->mode) {
 967                 case SPRAY_MODE_COPY:
 968                     sp_document_done(sp_desktop_document(SP_EVENT_CONTEXT(tc)->desktop),
 969                                      SP_VERB_CONTEXT_SPRAY, _("Spray with copies"));
 970                     break;
 971                 case SPRAY_MODE_CLONE:
 972                     sp_document_done(sp_desktop_document(SP_EVENT_CONTEXT(tc)->desktop),
 973                                      SP_VERB_CONTEXT_SPRAY, _("Spray with clones"));
 974                     break;
 975                 case SPRAY_MODE_SINGLE_PATH:
 976                     sp_document_done(sp_desktop_document(SP_EVENT_CONTEXT(tc)->desktop),
 977                                      SP_VERB_CONTEXT_SPRAY, _("Spray in single path"));
 978                     break;
 979             }
 980         }
 981         break;
 982     }
 983
 984     case GDK_KEY_PRESS:
 985         switch (get_group0_keyval (&event->key)) {
 986 case GDK_j:  if (MOD__SHIFT_ONLY) {
 987                 sp_spray_switch_mode(tc, SPRAY_MODE_COPY, MOD__SHIFT);
 988                 ret = TRUE;
 989             }
 990 case GDK_J: if (MOD__SHIFT_ONLY) {
 991                 sp_spray_switch_mode(tc, SPRAY_MODE_COPY, MOD__SHIFT);
 992                 ret = TRUE;
 993             }
 994
 995 break;
 996         case GDK_m:
 997         case GDK_M:
 998         case GDK_0:
 999
1000             break;
1001         case GDK_i:
1002         case GDK_I:
1003         case GDK_k:    if (MOD__SHIFT_ONLY) {
1004                 sp_spray_switch_mode(tc, SPRAY_MODE_SINGLE_PATH, MOD__SHIFT);
1005                 ret = TRUE;
1006             }
1007         case GDK_K:if (MOD__SHIFT_ONLY) {
1008                 sp_spray_switch_mode(tc, SPRAY_MODE_SINGLE_PATH, MOD__SHIFT);
1009                 ret = TRUE;
1010             }
1011 break;
1012
1013         case GDK_l: if (MOD__SHIFT_ONLY) {
1014                 sp_spray_switch_mode(tc, SPRAY_MODE_CLONE, MOD__SHIFT);
1015                 ret = TRUE;
1016             }
1017
1018         case GDK_L:
1019  if (MOD__SHIFT_ONLY) {
1020                 sp_spray_switch_mode(tc, SPRAY_MODE_CLONE, MOD__SHIFT);
1021                 ret = TRUE;
1022             }
1023             break;
1024         case GDK_Up:
1025         case GDK_KP_Up:
1026             if (!MOD__CTRL_ONLY) {
1027                 tc->scale += 0.05;
1028
1029                 //desktop->setToolboxAdjustmentValue ("spray-force", tc->force * 100);
1030                 ret = TRUE;
1031             }
1032             break;
1033         case GDK_Down:
1034         case GDK_KP_Down:
1035             if (!MOD__CTRL_ONLY) {
1036
1037                 tc->scale -= 0.05;
1038                 if (tc->scale < 0.0)
1039                     tc->scale = 0.0;
1040                 //desktop->setToolboxAdjustmentValue ("spray-force", tc->force * 100);
1041
1042                 ret = TRUE;
1043
1044             }
1045             break;
1046         case GDK_Right:
1047         case GDK_KP_Right:
1048             if (!MOD__CTRL_ONLY) {
1049                 tc->width += 0.01;
1050                 if (tc->width > 1.0)
1051                     tc->width = 1.0;
1052                 desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100); // the same spinbutton is for alt+x
1053                 sp_spray_update_area(tc);
1054                 ret = TRUE;
1055             }
1056             break;
1057         case GDK_Left:
1058         case GDK_KP_Left:
1059             if (!MOD__CTRL_ONLY) {
1060                 tc->width -= 0.01;
1061                 if (tc->width < 0.01)
1062                     tc->width = 0.01;
1063                 desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100);
1064                 sp_spray_update_area(tc);
1065                 ret = TRUE;
1066             }
1067             break;
1068         case GDK_Home:
1069         case GDK_KP_Home:
1070             tc->width = 0.01;
1071             desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100);
1072             sp_spray_update_area(tc);
1073             ret = TRUE;
1074             break;
1075         case GDK_End:
1076         case GDK_KP_End:
1077             tc->width = 1.0;
1078             desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100);
1079             sp_spray_update_area(tc);
1080             ret = TRUE;
1081             break;
1082         case GDK_x:
1083         case GDK_X:
1084             if (MOD__ALT_ONLY) {
1085                 desktop->setToolboxFocusTo ("altx-spray");
1086                 ret = TRUE;
1087             }
1088             break;
1089
1090         case GDK_Shift_L:
1091         case GDK_Shift_R:
1092             sp_spray_update_cursor(tc, true);
1093             break;
1094 /*Set the scale to 1*/
1095         case GDK_Control_L:
1096                 tc->scale=1;
1097         default:
1098             break;
1099         }
1100         break;
1101
1102     case GDK_KEY_RELEASE: {
1103         Inkscape::Preferences *prefs = Inkscape::Preferences::get();
1104         switch (get_group0_keyval(&event->key)) {
1105             case GDK_Shift_L:
1106             case GDK_Shift_R:
1107                 sp_spray_update_cursor(tc, false);
1108                 break;
1109             case GDK_Control_L:
1110             case GDK_Control_R:
1111                 sp_spray_switch_mode (tc, prefs->getInt("/tools/spray/mode"), MOD__SHIFT);
1112                 tc->_message_context->clear();
1113                 break;
1114             default:
1115                 sp_spray_switch_mode (tc, prefs->getInt("/tools/spray/mode"), MOD__SHIFT);
1116                 break;
1117         }
1118     }
1119
1120     default:
1121         break;
1122     }
1123
1124     if (!ret) {
1125         if (((SPEventContextClass *) parent_class)->root_handler) {
1126             ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
1127         }
1128     }
1129
1130     return ret;
1131 }
1132
1133 /*
1134   Local Variables:
1135   mode:c++
1136   c-file-style:"stroustrup"
1137   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1138   indent-tabs-mode:nil
1139   fill-column:99
1140   End:
1141 */
1142 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
1143