synfig-studio/src/gui/workarearenderer/renderer_ducks.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file renderer_ducks.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **      Copyright (c) 2007, 2008 Chris Moore
  10 **  Copyright (c) 2008 Gerald Young
  11 **
  12 **      This package is free software; you can redistribute it and/or
  13 **      modify it under the terms of the GNU General Public License as
  14 **      published by the Free Software Foundation; either version 2 of
  15 **      the License, or (at your option) any later version.
  16 **
  17 **      This package is distributed in the hope that it will be useful,
  18 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  20 **      General Public License for more details.
  21 **      \endlegal
  22 */
  23 /* ========================================================================= */
  24
  25 /* === H E A D E R S ======================================================= */
  26
  27 #ifdef USING_PCH
  28 #       include "pch.h"
  29 #else
  30 #ifdef HAVE_CONFIG_H
  31 #       include <config.h>
  32 #endif
  33
  34 #include "renderer_ducks.h"
  35 #include "workarea.h"
  36 #include "duckmatic.h"
  37 #include <ETL/bezier>
  38 #include <ETL/misc>
  39 #include "widgets/widget_color.h"
  40 #include <synfig/distance.h>
  41 #include "app.h"
  42
  43 #include "general.h"
  44
  45 #endif
  46
  47 /* === U S I N G =========================================================== */
  48
  49 using namespace std;
  50 using namespace etl;
  51 using namespace synfig;
  52 using namespace studio;
  53
  54 /* === M A C R O S ========================================================= */
  55
  56 /* === G L O B A L S ======================================================= */
  57
  58 /* === P R O C E D U R E S ================================================= */
  59
  60 /* === M E T H O D S ======================================================= */
  61
  62 Renderer_Ducks::~Renderer_Ducks()
  63 {
  64 }
  65
  66 /*
  67 bool
  68 Renderer_Ducks::get_enabled_vfunc()const
  69 {
  70         return get_work_area()->grid_status();
  71 }
  72 */
  73
  74 struct ScreenDuck
  75 {
  76         synfig::Point pos;
  77         Gdk::Color color;
  78         bool selected;
  79         bool hover;
  80         Real width;
  81
  82         ScreenDuck():width(0) { }
  83 };
  84
  85 void
  86 Renderer_Ducks::render_vfunc(
  87         const Glib::RefPtr<Gdk::Drawable>& drawable,
  88         const Gdk::Rectangle& /*expose_area*/
  89 )
  90 {
  91         assert(get_work_area());
  92         if(!get_work_area())
  93                 return;
  94
  95         const synfig::Vector focus_point(get_work_area()->get_focus_point());
  96
  97
  98         int drawable_w,drawable_h;
  99         drawable->get_size(drawable_w,drawable_h);
 100
 101         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(drawable));
 102
 103
 104         const synfig::Vector::value_type window_startx(get_work_area()->get_window_tl()[0]);
 105         const synfig::Vector::value_type window_starty(get_work_area()->get_window_tl()[1]);
 106
 107         const float pw(get_pw()),ph(get_ph());
 108
 109         const std::list<etl::handle<Duckmatic::Bezier> >& bezier_list(get_work_area()->bezier_list());
 110         const bool solid_lines(get_work_area()->solid_lines);
 111
 112         const std::list<handle<Duckmatic::Stroke> >& stroke_list(get_work_area()->stroke_list());
 113
 114         Glib::RefPtr<Pango::Layout> layout(Pango::Layout::create(get_work_area()->get_pango_context()));
 115
 116         // Render the strokes
 117         for(std::list<handle<Duckmatic::Stroke> >::const_iterator iter=stroke_list.begin();iter!=stroke_list.end();++iter)
 118         {
 119                 Point window_start(window_startx,window_starty);
 120                 vector<Gdk::Point> points;
 121                 std::list<synfig::Point>::iterator iter2;
 122                 Point holder;
 123
 124                 for(iter2=(*iter)->stroke_data->begin();iter2!=(*iter)->stroke_data->end();++iter2)
 125                 {
 126                         holder=*iter2-window_start;
 127                         holder[0]/=pw;holder[1]/=ph;
 128                         points.push_back(Gdk::Point(round_to_int(holder[0]),round_to_int(holder[1])));
 129                 }
 130
 131                 gc->set_rgb_fg_color(colorconv_synfig2gdk((*iter)->color));
 132                 gc->set_function(Gdk::COPY);
 133                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 134
 135                 // Draw the stroke
 136                 drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 137         }
 138
 139
 140
 141         // Render the beziers
 142         for(std::list<handle<Duckmatic::Bezier> >::const_iterator iter=bezier_list.begin();iter!=bezier_list.end();++iter)
 143         {
 144                 Point window_start(window_startx,window_starty);
 145                 Point p1((*iter)->p1->get_trans_point()-window_start);
 146                 Point p2((*iter)->p2->get_trans_point()-window_start);
 147                 Point c1((*iter)->c1->get_trans_point()-window_start);
 148                 Point c2((*iter)->c2->get_trans_point()-window_start);
 149                 p1[0]/=pw;p1[1]/=ph;
 150                 p2[0]/=pw;p2[1]/=ph;
 151                 c1[0]/=pw;c1[1]/=ph;
 152                 c2[0]/=pw;c2[1]/=ph;
 153                 bezier<Point> curve(p1,c1,c2,p2);
 154                 vector<Gdk::Point> points;
 155
 156                 float f;
 157                 Point pt;
 158                 for(f=0;f<1.0;f+=1.0/17.0)
 159                 {
 160                         pt=curve(f);
 161                         points.push_back(Gdk::Point(round_to_int(pt[0]),round_to_int(pt[1])));
 162                 }
 163                 points.push_back(Gdk::Point(round_to_int(p2[0]),round_to_int(p2[1])));
 164
 165                 // Draw the curve
 166 /*              if(solid_lines)
 167                 {
 168                         gc->set_rgb_fg_color(DUCK_COLOR_BEZIER_1);
 169                         gc->set_function(Gdk::COPY);
 170                         gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 171                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 172                         gc->set_rgb_fg_color(DUCK_COLOR_BEZIER_2);
 173                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 174                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 175                 }
 176                 else
 177 */
 178                 {
 179 //                      gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 180 //                      gc->set_function(Gdk::INVERT);
 181 //                      gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 182 //                      drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 183                         gc->set_rgb_fg_color(DUCK_COLOR_BEZIER_1);
 184                         gc->set_function(Gdk::COPY);
 185                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 186                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 187                         gc->set_rgb_fg_color(DUCK_COLOR_BEZIER_2);
 188                         gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 189                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 190
 191                 }
 192         }
 193
 194
 195         const DuckList duck_list(get_work_area()->get_duck_list());
 196         //Gtk::StateType state = Gtk::STATE_ACTIVE;
 197         Gtk::ShadowType shadow=Gtk::SHADOW_OUT;
 198         std::list<ScreenDuck> screen_duck_list;
 199         const float radius((abs(pw)+abs(ph))*4);
 200
 201         etl::handle<Duck> hover_duck(get_work_area()->find_duck(get_work_area()->get_cursor_pos(),radius, get_work_area()->get_type_mask()));
 202
 203         // Render the ducks
 204         for(std::list<handle<Duck> >::const_iterator iter=duck_list.begin();iter!=duck_list.end();++iter)
 205         {
 206
 207                 // If this type of duck has been masked, then skip it
 208                 if((*iter)->get_type() && (!(get_work_area()->get_type_mask() & (*iter)->get_type())))
 209                         continue;
 210
 211 //              Real x,y;
 212         //      Gdk::Rectangle area;
 213                 Point sub_trans_point((*iter)->get_sub_trans_point());
 214                 Point sub_trans_origin((*iter)->get_sub_trans_origin());
 215
 216                 if (App::restrict_radius_ducks &&
 217                         (*iter)->is_radius())
 218                 {
 219                         if (sub_trans_point[0] < sub_trans_origin[0])
 220                                 sub_trans_point[0] = sub_trans_origin[0];
 221                         if (sub_trans_point[1] < sub_trans_origin[1])
 222                                 sub_trans_point[1] = sub_trans_origin[1];
 223                 }
 224
 225                 Point point((*iter)->get_transform_stack().perform(sub_trans_point));
 226                 Point origin((*iter)->get_transform_stack().perform(sub_trans_origin));
 227
 228                 point[0]=(point[0]-window_startx)/pw;
 229                 point[1]=(point[1]-window_starty)/ph;
 230
 231                 bool has_connect(false);
 232                 if((*iter)->get_tangent() || (*iter)->get_type()&Duck::TYPE_ANGLE)
 233                 {
 234                         has_connect=true;
 235                 }
 236                 if((*iter)->get_connect_duck())
 237                 {
 238                         has_connect=true;
 239                         origin=(*iter)->get_connect_duck()->get_trans_point();
 240                 }
 241
 242                 origin[0]=(origin[0]-window_startx)/pw;
 243                 origin[1]=(origin[1]-window_starty)/ph;
 244
 245                 bool selected(get_work_area()->duck_is_selected(*iter));
 246                 bool hover(*iter==hover_duck || (*iter)->get_hover());
 247
 248                 shadow = selected?Gtk::SHADOW_IN:Gtk::SHADOW_OUT;
 249
 250                 if(get_work_area()->get_selected_value_node())
 251                 {
 252                         synfigapp::ValueDesc value_desc((*iter)->get_value_desc());
 253                         if (value_desc.is_valid() &&
 254                                 ((value_desc.is_value_node()            && get_work_area()->get_selected_value_node() == value_desc.get_value_node()) ||
 255                                  (value_desc.parent_is_value_node()     && get_work_area()->get_selected_value_node() == value_desc.get_parent_value_node())))
 256                         {
 257                                 gc->set_function(Gdk::COPY);
 258                                 gc->set_rgb_fg_color(DUCK_COLOR_SELECTED);
 259                                 //gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 260                                 gc->set_line_attributes(2,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 261
 262                                 drawable->draw_rectangle(gc,false,
 263                                         round_to_int(point[0]-5),
 264                                         round_to_int(point[1]-5),
 265                                         10,
 266                                         10
 267                                 );
 268                         }
 269
 270                 }
 271
 272                 if((*iter)->get_box_duck())
 273                 {
 274                         Point boxpoint((*iter)->get_box_duck()->get_trans_point());
 275                         boxpoint[0]=(boxpoint[0]-window_startx)/pw;
 276                         boxpoint[1]=(boxpoint[1]-window_starty)/ph;
 277                         Point tl(min(point[0],boxpoint[0]),min(point[1],boxpoint[1]));
 278
 279                         gc->set_function(Gdk::COPY);
 280                         gc->set_rgb_fg_color(DUCK_COLOR_BOX_1);
 281                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 282                         drawable->draw_rectangle(gc,false,
 283                                 round_to_int(tl[0]),
 284                                 round_to_int(tl[1]),
 285                                 round_to_int(abs(boxpoint[0]-point[0])),
 286                                 round_to_int(abs(boxpoint[1]-point[1]))
 287                         );
 288                         gc->set_function(Gdk::COPY);
 289                         gc->set_rgb_fg_color(DUCK_COLOR_BOX_2);
 290                         gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 291                         drawable->draw_rectangle(gc,false,
 292                                 round_to_int(tl[0]),
 293                                 round_to_int(tl[1]),
 294                                 round_to_int(abs(boxpoint[0]-point[0])),
 295                                 round_to_int(abs(boxpoint[1]-point[1]))
 296                         );
 297                 }
 298
 299                 ScreenDuck screen_duck;
 300                 screen_duck.pos=point;
 301                 screen_duck.selected=selected;
 302                 screen_duck.hover=hover;
 303
 304                 if(!(*iter)->get_editable())
 305                         screen_duck.color=(DUCK_COLOR_NOT_EDITABLE);
 306                 else if((*iter)->get_tangent())
 307                         if(0){
 308                                 // Tangents have different color depending on the split state (disabled for now)
 309                                 //
 310                                 // Check if we can reach the canvas and set the time to
 311                                 // evaluate the split value accordingly
 312                                 synfig::Canvas::Handle canvas_h(get_work_area()->get_canvas());
 313                                 synfig::Time time(canvas_h?canvas_h->get_time():synfig::Time(0));
 314                                 // Retrieve the split value of the bline point.
 315                                 synfigapp::ValueDesc& v_d((*iter)->get_value_desc());
 316                                 synfig::LinkableValueNode::Handle parent;
 317                                 if(v_d.parent_is_linkable_value_node())
 318                                 {
 319                                         parent=v_d.get_parent_value_node();
 320                                         bool split;
 321                                         synfig::ValueNode::Handle child(parent->get_link("split"));
 322                                         if(synfig::ValueNode_Animated::Handle::cast_dynamic(child))
 323                                         {
 324                                                 synfig::ValueNode_Animated::Handle animated_child(synfig::ValueNode_Animated::Handle::cast_dynamic(child));
 325                                                 split=animated_child->new_waypoint_at_time(time).get_value(time).get(split);
 326                                         }
 327                                         else if(synfig::ValueNode_Const::Handle::cast_dynamic(child))
 328                                         {
 329                                                 synfig::ValueNode_Const::Handle const_child(synfig::ValueNode_Const::Handle::cast_dynamic(child));
 330                                                 split=(const_child->get_value()).get(split);
 331                                         }
 332                                         screen_duck.color=(split? DUCK_COLOR_TANGENT_2 : DUCK_COLOR_TANGENT_1);
 333                                 }
 334                                 else
 335                                         screen_duck.color=DUCK_COLOR_TANGENT_1;
 336                         } else {
 337                                 // All tangents are the same color
 338                                 screen_duck.color=((*iter)->get_scalar()<0 ? DUCK_COLOR_TANGENT_1 : DUCK_COLOR_TANGENT_1);
 339                         }
 340                 else if((*iter)->get_type()&Duck::TYPE_VERTEX)
 341                         screen_duck.color=DUCK_COLOR_VERTEX;
 342                 else if((*iter)->get_type()&Duck::TYPE_RADIUS)
 343                         screen_duck.color=DUCK_COLOR_RADIUS;
 344                 else if((*iter)->get_type()&Duck::TYPE_WIDTH)
 345                         screen_duck.color=DUCK_COLOR_WIDTH;
 346                 else if((*iter)->get_type()&Duck::TYPE_ANGLE)
 347                         screen_duck.color=(DUCK_COLOR_ANGLE);
 348                 else
 349                         screen_duck.color=DUCK_COLOR_OTHER;
 350
 351                 screen_duck_list.push_front(screen_duck);
 352
 353                 if(has_connect)
 354                 {
 355                         if(solid_lines)
 356                         {
 357                                 gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 358                                 gc->set_rgb_fg_color(DUCK_COLOR_CONNECT_OUTSIDE);
 359                                 gc->set_function(Gdk::COPY);
 360                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 361                                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 362                                 gc->set_rgb_fg_color(DUCK_COLOR_CONNECT_INSIDE);
 363                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 364                         }
 365                         else
 366                         {
 367 //                              gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 368 //                              gc->set_function(Gdk::INVERT);
 369 //                              drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 370                                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 371                                 gc->set_rgb_fg_color(DUCK_COLOR_CONNECT_OUTSIDE);
 372                                 gc->set_function(Gdk::COPY);
 373                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 374                                 gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 375                                 gc->set_rgb_fg_color(DUCK_COLOR_CONNECT_INSIDE);
 376                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 377                         }
 378                 }
 379
 380                 if((*iter)->is_radius())
 381                 {
 382                         const Real mag((point-origin).mag());
 383                         const int d(round_to_int(mag*2));
 384                         const int x(round_to_int(origin[0]-mag));
 385                         const int y(round_to_int(origin[1]-mag));
 386
 387                         if(solid_lines)
 388                         {
 389                                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 390                                 gc->set_function(Gdk::COPY);
 391                                 gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 392                                 drawable->draw_arc(
 393                                         gc,
 394                                         false,
 395                                         x,
 396                                         y,
 397                                         d,
 398                                         d,
 399                                         0,
 400                                         360*64
 401                                 );
 402                                 gc->set_rgb_fg_color(Gdk::Color("#afafaf"));
 403                         }
 404                         else
 405                         {
 406                                 gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 407                                 gc->set_function(Gdk::INVERT);
 408                         }
 409                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 410
 411                         drawable->draw_arc(
 412                                 gc,
 413                                 false,
 414                                 x,
 415                                 y,
 416                                 d,
 417                                 d,
 418                                 0,
 419                                 360*64
 420                         );
 421
 422                         if(hover)
 423                         {
 424                                 Real mag;
 425                                 if (App::restrict_radius_ducks)
 426                                 {
 427                                         Point sub_trans_point((*iter)->get_sub_trans_point());
 428                                         Point sub_trans_origin((*iter)->get_sub_trans_origin());
 429
 430                                         if (sub_trans_point[0] < sub_trans_origin[0])
 431                                                 sub_trans_point[0] = sub_trans_origin[0];
 432                                         if (sub_trans_point[1] < sub_trans_origin[1])
 433                                                 sub_trans_point[1] = sub_trans_origin[1];
 434
 435                                         Point point((*iter)->get_transform_stack().perform(sub_trans_point));
 436                                         Point origin((*iter)->get_transform_stack().perform(sub_trans_origin));
 437
 438                                         mag = (point-origin).mag();
 439                                 }
 440                                 else
 441                                         mag = ((*iter)->get_trans_point()-(*iter)->get_trans_origin()).mag();
 442
 443                                 Distance real_mag(mag, Distance::SYSTEM_UNITS);
 444                                 real_mag.convert(App::distance_system,get_work_area()->get_rend_desc());
 445                                 layout->set_text(real_mag.get_string());
 446
 447                                 gc->set_rgb_fg_color(DUCK_COLOR_WIDTH_TEXT_1);
 448                                 drawable->draw_layout(
 449                                         gc,
 450                                         round_to_int(point[0])+1+6,
 451                                         round_to_int(point[1])+1-8,
 452                                         layout
 453                                 );
 454                                 gc->set_rgb_fg_color(DUCK_COLOR_WIDTH_TEXT_2);
 455                                 drawable->draw_layout(
 456                                         gc,
 457                                         round_to_int(point[0])+6,
 458                                         round_to_int(point[1])-8,
 459                                         layout
 460                                 );
 461                         }
 462
 463                 }
 464
 465         }
 466
 467
 468         for(;screen_duck_list.size();screen_duck_list.pop_front())
 469         {
 470                 int radius=4;
 471                 int outline=1;
 472                 Gdk::Color color(screen_duck_list.front().color);
 473
 474                 if(!screen_duck_list.front().selected)
 475                 {
 476                         color.set_red(color.get_red()*2/3);
 477                         color.set_green(color.get_green()*2/3);
 478                         color.set_blue(color.get_blue()*2/3);
 479                 }
 480
 481                 if(screen_duck_list.front().hover && !screen_duck_list.back().hover && screen_duck_list.size()>1)
 482                 {
 483                         screen_duck_list.push_back(screen_duck_list.front());
 484                         continue;
 485                 }
 486
 487                 if(screen_duck_list.front().hover)
 488                 {
 489                         radius+=2;
 490                         outline++;
 491                 }
 492
 493                 gc->set_function(Gdk::COPY);
 494                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 495                 gc->set_rgb_fg_color(DUCK_COLOR_OUTLINE);
 496                 drawable->draw_arc(
 497                         gc,
 498                         true,
 499                         round_to_int(screen_duck_list.front().pos[0]-radius),
 500                         round_to_int(screen_duck_list.front().pos[1]-radius),
 501                         radius*2,
 502                         radius*2,
 503                         0,
 504                         360*64
 505                 );
 506
 507
 508                 gc->set_rgb_fg_color(color);
 509
 510                 drawable->draw_arc(
 511                         gc,
 512                         true,
 513                         round_to_int(screen_duck_list.front().pos[0]-radius+outline),
 514                         round_to_int(screen_duck_list.front().pos[1]-radius+outline),
 515                         radius*2-outline*2,
 516                         radius*2-outline*2,
 517                         0,
 518                         360*64
 519                 );
 520         }
 521 }