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                 {
 308                         // Check if we can reach the canvas and set the time to
 309                         // evaluate the split value accordingly
 310                         synfig::Canvas::Handle canvas_h(get_work_area()->get_canvas());
 311                         synfig::Time time(canvas_h?canvas_h->get_time():synfig::Time(0));
 312                         // Retrieve the split value of the bline point.
 313                         synfigapp::ValueDesc& v_d((*iter)->get_value_desc());
 314                         synfig::LinkableValueNode::Handle parent;
 315                         if(v_d.parent_is_linkable_value_node())
 316                         {
 317                                 parent=v_d.get_parent_value_node();
 318                                 bool split;
 319                                 synfig::ValueNode::Handle child(parent->get_link("split"));
 320                                 if(synfig::ValueNode_Animated::Handle::cast_dynamic(child))
 321                                 {
 322                                         synfig::ValueNode_Animated::Handle animated_child(synfig::ValueNode_Animated::Handle::cast_dynamic(child));
 323                                         split=animated_child->new_waypoint_at_time(time).get_value(time).get(split);
 324                                 }
 325                                 else if(synfig::ValueNode_Const::Handle::cast_dynamic(child))
 326                                 {
 327                                         synfig::ValueNode_Const::Handle const_child(synfig::ValueNode_Const::Handle::cast_dynamic(child));
 328                                         split=(const_child->get_value()).get(split);
 329                                 }
 330                                 screen_duck.color=(split? DUCK_COLOR_TANGENT_2 : DUCK_COLOR_TANGENT_1);
 331                         }
 332                         else
 333                                 screen_duck.color=DUCK_COLOR_TANGENT_1;
 334                 }
 335                 else if((*iter)->get_type()&Duck::TYPE_VERTEX)
 336                         screen_duck.color=DUCK_COLOR_VERTEX;
 337                 else if((*iter)->get_type()&Duck::TYPE_RADIUS)
 338                         screen_duck.color=DUCK_COLOR_RADIUS;
 339                 else if((*iter)->get_type()&Duck::TYPE_WIDTH)
 340                         screen_duck.color=DUCK_COLOR_WIDTH;
 341                 else if((*iter)->get_type()&Duck::TYPE_ANGLE)
 342                         screen_duck.color=(DUCK_COLOR_ANGLE);
 343                 else
 344                         screen_duck.color=DUCK_COLOR_OTHER;
 345
 346                 screen_duck_list.push_front(screen_duck);
 347
 348                 if(has_connect)
 349                 {
 350                         if(solid_lines)
 351                         {
 352                                 gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 353                                 gc->set_rgb_fg_color(DUCK_COLOR_CONNECT_OUTSIDE);
 354                                 gc->set_function(Gdk::COPY);
 355                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 356                                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 357                                 gc->set_rgb_fg_color(DUCK_COLOR_CONNECT_INSIDE);
 358                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 359                         }
 360                         else
 361                         {
 362 //                              gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 363 //                              gc->set_function(Gdk::INVERT);
 364 //                              drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 365                                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 366                                 gc->set_rgb_fg_color(DUCK_COLOR_CONNECT_OUTSIDE);
 367                                 gc->set_function(Gdk::COPY);
 368                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 369                                 gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 370                                 gc->set_rgb_fg_color(DUCK_COLOR_CONNECT_INSIDE);
 371                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 372                         }
 373                 }
 374
 375                 if((*iter)->is_radius())
 376                 {
 377                         const Real mag((point-origin).mag());
 378                         const int d(round_to_int(mag*2));
 379                         const int x(round_to_int(origin[0]-mag));
 380                         const int y(round_to_int(origin[1]-mag));
 381
 382                         if(solid_lines)
 383                         {
 384                                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 385                                 gc->set_function(Gdk::COPY);
 386                                 gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 387                                 drawable->draw_arc(
 388                                         gc,
 389                                         false,
 390                                         x,
 391                                         y,
 392                                         d,
 393                                         d,
 394                                         0,
 395                                         360*64
 396                                 );
 397                                 gc->set_rgb_fg_color(Gdk::Color("#afafaf"));
 398                         }
 399                         else
 400                         {
 401                                 gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 402                                 gc->set_function(Gdk::INVERT);
 403                         }
 404                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 405
 406                         drawable->draw_arc(
 407                                 gc,
 408                                 false,
 409                                 x,
 410                                 y,
 411                                 d,
 412                                 d,
 413                                 0,
 414                                 360*64
 415                         );
 416
 417                         if(hover)
 418                         {
 419                                 Real mag;
 420                                 if (App::restrict_radius_ducks)
 421                                 {
 422                                         Point sub_trans_point((*iter)->get_sub_trans_point());
 423                                         Point sub_trans_origin((*iter)->get_sub_trans_origin());
 424
 425                                         if (sub_trans_point[0] < sub_trans_origin[0])
 426                                                 sub_trans_point[0] = sub_trans_origin[0];
 427                                         if (sub_trans_point[1] < sub_trans_origin[1])
 428                                                 sub_trans_point[1] = sub_trans_origin[1];
 429
 430                                         Point point((*iter)->get_transform_stack().perform(sub_trans_point));
 431                                         Point origin((*iter)->get_transform_stack().perform(sub_trans_origin));
 432
 433                                         mag = (point-origin).mag();
 434                                 }
 435                                 else
 436                                         mag = ((*iter)->get_trans_point()-(*iter)->get_trans_origin()).mag();
 437
 438                                 Distance real_mag(mag, Distance::SYSTEM_UNITS);
 439                                 real_mag.convert(App::distance_system,get_work_area()->get_rend_desc());
 440                                 layout->set_text(real_mag.get_string());
 441
 442                                 gc->set_rgb_fg_color(DUCK_COLOR_WIDTH_TEXT_1);
 443                                 drawable->draw_layout(
 444                                         gc,
 445                                         round_to_int(point[0])+1+6,
 446                                         round_to_int(point[1])+1-8,
 447                                         layout
 448                                 );
 449                                 gc->set_rgb_fg_color(DUCK_COLOR_WIDTH_TEXT_2);
 450                                 drawable->draw_layout(
 451                                         gc,
 452                                         round_to_int(point[0])+6,
 453                                         round_to_int(point[1])-8,
 454                                         layout
 455                                 );
 456                         }
 457
 458                 }
 459
 460         }
 461
 462
 463         for(;screen_duck_list.size();screen_duck_list.pop_front())
 464         {
 465                 int radius=4;
 466                 int outline=1;
 467                 Gdk::Color color(screen_duck_list.front().color);
 468
 469                 if(!screen_duck_list.front().selected)
 470                 {
 471                         color.set_red(color.get_red()*2/3);
 472                         color.set_green(color.get_green()*2/3);
 473                         color.set_blue(color.get_blue()*2/3);
 474                 }
 475
 476                 if(screen_duck_list.front().hover && !screen_duck_list.back().hover && screen_duck_list.size()>1)
 477                 {
 478                         screen_duck_list.push_back(screen_duck_list.front());
 479                         continue;
 480                 }
 481
 482                 if(screen_duck_list.front().hover)
 483                 {
 484                         radius+=2;
 485                         outline++;
 486                 }
 487
 488                 gc->set_function(Gdk::COPY);
 489                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 490                 gc->set_rgb_fg_color(DUCK_COLOR_OUTLINE);
 491                 drawable->draw_arc(
 492                         gc,
 493                         true,
 494                         round_to_int(screen_duck_list.front().pos[0]-radius),
 495                         round_to_int(screen_duck_list.front().pos[1]-radius),
 496                         radius*2,
 497                         radius*2,
 498                         0,
 499                         360*64
 500                 );
 501
 502
 503                 gc->set_rgb_fg_color(color);
 504
 505                 drawable->draw_arc(
 506                         gc,
 507                         true,
 508                         round_to_int(screen_duck_list.front().pos[0]-radius+outline),
 509                         round_to_int(screen_duck_list.front().pos[1]-radius+outline),
 510                         radius*2-outline*2,
 511                         radius*2-outline*2,
 512                         0,
 513                         360*64
 514                 );
 515         }
 516 }