synfig-studio/trunk/src/gtkmm/renderer_ducks.cpp

   1 /* === S I N F G =========================================================== */
   2 /*!     \file template.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id: renderer_ducks.cpp,v 1.1.1.1 2005/01/07 03:34:36 darco Exp $
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002 Robert B. Quattlebaum Jr.
   9 **
  10 **      This software and associated documentation
  11 **      are CONFIDENTIAL and PROPRIETARY property of
  12 **      the above-mentioned copyright holder.
  13 **
  14 **      You may not copy, print, publish, or in any
  15 **      other way distribute this software without
  16 **      a prior written agreement with
  17 **      the copyright holder.
  18 **      \endlegal
  19 */
  20 /* ========================================================================= */
  21
  22 /* === H E A D E R S ======================================================= */
  23
  24 #ifdef USING_PCH
  25 #       include "pch.h"
  26 #else
  27 #ifdef HAVE_CONFIG_H
  28 #       include <config.h>
  29 #endif
  30
  31 #include "renderer_ducks.h"
  32 #include "workarea.h"
  33 #include "duckmatic.h"
  34 #include <ETL/bezier>
  35 #include <ETL/misc>
  36 #include "widget_color.h"
  37 #include <sinfg/distance.h>
  38 #include "app.h"
  39
  40 #endif
  41
  42 /* === U S I N G =========================================================== */
  43
  44 using namespace std;
  45 using namespace etl;
  46 using namespace sinfg;
  47 using namespace studio;
  48
  49 /* === M A C R O S ========================================================= */
  50
  51 /* === G L O B A L S ======================================================= */
  52
  53 /* === P R O C E D U R E S ================================================= */
  54
  55 /* === M E T H O D S ======================================================= */
  56
  57 Renderer_Ducks::~Renderer_Ducks()
  58 {
  59 }
  60
  61 /*
  62 bool
  63 Renderer_Ducks::get_enabled_vfunc()const
  64 {
  65         return get_work_area()->grid_status();
  66 }
  67 */
  68
  69 struct ScreenDuck
  70 {
  71         sinfg::Point pos;
  72         Gdk::Color color;
  73         bool selected;
  74         bool hover;
  75         Real width;
  76
  77         ScreenDuck():width(0) { }
  78 };
  79
  80 void
  81 Renderer_Ducks::render_vfunc(
  82         const Glib::RefPtr<Gdk::Drawable>& drawable,
  83         const Gdk::Rectangle& expose_area
  84 )
  85 {
  86         assert(get_work_area());
  87         if(!get_work_area())
  88                 return;
  89
  90         const sinfg::Vector focus_point(get_work_area()->get_focus_point());
  91
  92
  93         int drawable_w,drawable_h;
  94         drawable->get_size(drawable_w,drawable_h);
  95
  96         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(drawable));
  97
  98
  99         const sinfg::Vector::value_type window_startx(get_work_area()->get_window_tl()[0]);
 100         const sinfg::Vector::value_type window_starty(get_work_area()->get_window_tl()[1]);
 101
 102         const float pw(get_pw()),ph(get_ph());
 103
 104         const std::list<etl::handle<Duckmatic::Bezier> >& bezier_list(get_work_area()->bezier_list());
 105         const bool solid_lines(get_work_area()->solid_lines);
 106
 107         const std::list<handle<Duckmatic::Stroke> >& stroke_list(get_work_area()->stroke_list());
 108
 109         Glib::RefPtr<Pango::Layout> layout(Pango::Layout::create(get_work_area()->get_pango_context()));
 110
 111         // Render the strokes
 112         for(std::list<handle<Duckmatic::Stroke> >::const_iterator iter=stroke_list.begin();iter!=stroke_list.end();++iter)
 113         {
 114                 Point window_start(window_startx,window_starty);
 115                 vector<Gdk::Point> points;
 116                 std::list<sinfg::Point>::iterator iter2;
 117                 Point holder;
 118
 119                 for(iter2=(*iter)->stroke_data->begin();iter2!=(*iter)->stroke_data->end();++iter2)
 120                 {
 121                         holder=*iter2-window_start;
 122                         holder[0]/=pw;holder[1]/=ph;
 123                         points.push_back(Gdk::Point(round_to_int(holder[0]),round_to_int(holder[1])));
 124                 }
 125
 126                 gc->set_rgb_fg_color(colorconv_sinfg2gdk((*iter)->color));
 127                 gc->set_function(Gdk::COPY);
 128                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 129
 130                 // Draw the stroke
 131                 drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 132         }
 133
 134
 135
 136         // Render the beziers
 137         for(std::list<handle<Duckmatic::Bezier> >::const_iterator iter=bezier_list.begin();iter!=bezier_list.end();++iter)
 138         {
 139                 Point window_start(window_startx,window_starty);
 140                 Point p1((*iter)->p1->get_trans_point()-window_start);
 141                 Point p2((*iter)->p2->get_trans_point()-window_start);
 142                 Point c1((*iter)->c1->get_trans_point()-window_start);
 143                 Point c2((*iter)->c2->get_trans_point()-window_start);
 144                 p1[0]/=pw;p1[1]/=ph;
 145                 p2[0]/=pw;p2[1]/=ph;
 146                 c1[0]/=pw;c1[1]/=ph;
 147                 c2[0]/=pw;c2[1]/=ph;
 148                 bezier<Point> curve(p1,c1,c2,p2);
 149                 vector<Gdk::Point> points;
 150
 151                 float f;
 152                 Point pt;
 153                 for(f=0;f<1.0;f+=1.0/17.0)
 154                 {
 155                         pt=curve(f);
 156                         points.push_back(Gdk::Point(round_to_int(pt[0]),round_to_int(pt[1])));
 157                 }
 158                 points.push_back(Gdk::Point(round_to_int(p2[0]),round_to_int(p2[1])));
 159
 160                 // Draw the curve
 161 /*              if(solid_lines)
 162                 {
 163                         gc->set_rgb_fg_color(Gdk::Color("#000000"));
 164                         gc->set_function(Gdk::COPY);
 165                         gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 166                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 167                         gc->set_rgb_fg_color(Gdk::Color("#afafaf"));
 168                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 169                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 170                 }
 171                 else
 172 */
 173                 {
 174 //                      gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 175 //                      gc->set_function(Gdk::INVERT);
 176 //                      gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 177 //                      drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 178                         gc->set_rgb_fg_color(Gdk::Color("#000000"));
 179                         gc->set_function(Gdk::COPY);
 180                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 181                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 182                         gc->set_rgb_fg_color(Gdk::Color("#afafaf"));
 183                         gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 184                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 185
 186                 }
 187         }
 188
 189
 190         const DuckList duck_list(get_work_area()->get_duck_list());
 191         //Gtk::StateType state = Gtk::STATE_ACTIVE;
 192         Gtk::ShadowType shadow=Gtk::SHADOW_OUT;
 193         std::list<ScreenDuck> screen_duck_list;
 194         const float radius((abs(pw)+abs(ph))*4);
 195
 196         etl::handle<Duck> hover_duck(get_work_area()->find_duck(get_work_area()->get_cursor_pos(),radius, get_work_area()->get_type_mask()));
 197
 198         // Render the ducks
 199         for(std::list<handle<Duck> >::const_iterator iter=duck_list.begin();iter!=duck_list.end();++iter)
 200         {
 201
 202                 // If this type of duck has been masked, then skip it
 203                 if((*iter)->get_type() && (!(get_work_area()->get_type_mask() & (*iter)->get_type())))
 204                         continue;
 205
 206 //              Real x,y;
 207         //      Gdk::Rectangle area;
 208                 Point point((*iter)->get_trans_point());
 209                 Point origin((*iter)->get_trans_origin());
 210
 211                 point[0]=(point[0]-window_startx)/pw;
 212                 point[1]=(point[1]-window_starty)/ph;
 213
 214                 bool has_connect(false);
 215                 if((*iter)->get_tangent() || (*iter)->get_type()&Duck::TYPE_ANGLE)
 216                 {
 217                         has_connect=true;
 218                 }
 219                 if((*iter)->get_connect_duck())
 220                 {
 221                         has_connect=true;
 222                         origin=(*iter)->get_connect_duck()->get_trans_point();
 223                 }
 224
 225                 origin[0]=(origin[0]-window_startx)/pw;
 226                 origin[1]=(origin[1]-window_starty)/ph;
 227
 228
 229                 bool selected(get_work_area()->duck_is_selected(*iter));
 230                 bool hover(*iter==hover_duck);
 231
 232                 shadow = selected?Gtk::SHADOW_IN:Gtk::SHADOW_OUT;
 233
 234                 if(get_work_area()->get_selected_value_node())
 235                 {
 236                         sinfgapp::ValueDesc value_desc((*iter)->get_value_desc());
 237                         if(value_desc.is_valid() && value_desc.is_value_node() && get_work_area()->get_selected_value_node()==value_desc.get_value_node())
 238                         {
 239                                 gc->set_function(Gdk::COPY);
 240                                 gc->set_rgb_fg_color(Gdk::Color("#FF0000"));
 241                                 //gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 242                                 gc->set_line_attributes(2,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 243
 244                                 drawable->draw_rectangle(gc,false,
 245                                         round_to_int(point[0]-5),
 246                                         round_to_int(point[1]-5),
 247                                         10,
 248                                         10
 249                                 );
 250                         }
 251
 252                 }
 253
 254                 if((*iter)->get_box_duck())
 255                 {
 256                         Point boxpoint((*iter)->get_box_duck()->get_trans_point());
 257                         boxpoint[0]=(boxpoint[0]-window_startx)/pw;
 258                         boxpoint[1]=(boxpoint[1]-window_starty)/ph;
 259                         Point tl(min(point[0],boxpoint[0]),min(point[1],boxpoint[1]));
 260
 261                         gc->set_function(Gdk::COPY);
 262                         gc->set_rgb_fg_color(Gdk::Color("#FFFFFF"));
 263                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 264                         drawable->draw_rectangle(gc,false,
 265                                 round_to_int(tl[0]),
 266                                 round_to_int(tl[1]),
 267                                 round_to_int(abs(boxpoint[0]-point[0])),
 268                                 round_to_int(abs(boxpoint[1]-point[1]))
 269                         );
 270                         gc->set_function(Gdk::COPY);
 271                         gc->set_rgb_fg_color(Gdk::Color("#000000"));
 272                         gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 273                         drawable->draw_rectangle(gc,false,
 274                                 round_to_int(tl[0]),
 275                                 round_to_int(tl[1]),
 276                                 round_to_int(abs(boxpoint[0]-point[0])),
 277                                 round_to_int(abs(boxpoint[1]-point[1]))
 278                         );
 279                 }
 280
 281                 ScreenDuck screen_duck;
 282                 screen_duck.pos=point;
 283                 screen_duck.selected=selected;
 284                 screen_duck.hover=hover;
 285
 286                 if(!(*iter)->get_editable())
 287                         screen_duck.color=(Gdk::Color("#cfcfcf"));
 288                 else if((*iter)->get_tangent())
 289                         screen_duck.color=((*iter)->get_scalar()<0?Gdk::Color("#ffff00"):Gdk::Color("#ff0000"));
 290                 else if((*iter)->get_type()&Duck::TYPE_VERTEX)
 291                         screen_duck.color=Gdk::Color("#ff7f00");
 292                 else if((*iter)->get_type()&Duck::TYPE_RADIUS)
 293                         screen_duck.color=Gdk::Color("#00ffff");
 294                 else if((*iter)->get_type()&Duck::TYPE_WIDTH)
 295                         screen_duck.color=Gdk::Color("#ff00ff");
 296                 else if((*iter)->get_type()&Duck::TYPE_ANGLE)
 297                         screen_duck.color=(Gdk::Color("#0000ff"));
 298                 else
 299                         screen_duck.color=Gdk::Color("#00ff00");
 300
 301                 screen_duck_list.push_front(screen_duck);
 302
 303                 if(has_connect)
 304                 {
 305                         if(solid_lines)
 306                         {
 307                                 gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 308                                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 309                                 gc->set_function(Gdk::COPY);
 310                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 311                                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 312                                 gc->set_rgb_fg_color(Gdk::Color("#9fefef"));
 313                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 314                         }
 315                         else
 316                         {
 317 //                              gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 318 //                              gc->set_function(Gdk::INVERT);
 319 //                              drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 320                                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 321                                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 322                                 gc->set_function(Gdk::COPY);
 323                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 324                                 gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 325                                 gc->set_rgb_fg_color(Gdk::Color("#9fefef"));
 326                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 327                         }
 328                 }
 329
 330                 if((*iter)->is_radius())
 331                 {
 332                         const Real mag((point-origin).mag());
 333                         const int d(round_to_int(mag*2));
 334                         const int x(round_to_int(origin[0]-mag));
 335                         const int y(round_to_int(origin[1]-mag));
 336
 337                         if(solid_lines)
 338                         {
 339                                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 340                                 gc->set_function(Gdk::COPY);
 341                                 gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 342                                 drawable->draw_arc(
 343                                         gc,
 344                                         false,
 345                                         x,
 346                                         y,
 347                                         d,
 348                                         d,
 349                                         0,
 350                                         360*64
 351                                 );
 352                                 gc->set_rgb_fg_color(Gdk::Color("#afafaf"));
 353                         }
 354                         else
 355                         {
 356                                 gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 357                                 gc->set_function(Gdk::INVERT);
 358                         }
 359                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 360
 361                         drawable->draw_arc(
 362                                 gc,
 363                                 false,
 364                                 x,
 365                                 y,
 366                                 d,
 367                                 d,
 368                                 0,
 369                                 360*64
 370                         );
 371
 372                         if(hover)
 373                         {
 374                                 Distance real_mag(((*iter)->get_trans_point()-(*iter)->get_trans_origin()).mag(),Distance::SYSTEM_UNITS);
 375                                 real_mag.convert(App::distance_system,get_work_area()->get_rend_desc());
 376                                 layout->set_text(real_mag.get_string());
 377
 378                                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 379                                 drawable->draw_layout(
 380                                         gc,
 381                                         round_to_int(point[0])+1+6,
 382                                         round_to_int(point[1])+1-8,
 383                                         layout
 384                                 );
 385                                 gc->set_rgb_fg_color(Gdk::Color("#FF00FF"));
 386                                 drawable->draw_layout(
 387                                         gc,
 388                                         round_to_int(point[0])+6,
 389                                         round_to_int(point[1])-8,
 390                                         layout
 391                                 );
 392                         }
 393
 394                 }
 395
 396         }
 397
 398
 399         for(;screen_duck_list.size();screen_duck_list.pop_front())
 400         {
 401                 int radius=4;
 402                 int outline=1;
 403                 Gdk::Color color(screen_duck_list.front().color);
 404
 405                 if(!screen_duck_list.front().selected)
 406                 {
 407                         color.set_red(color.get_red()*2/3);
 408                         color.set_green(color.get_green()*2/3);
 409                         color.set_blue(color.get_blue()*2/3);
 410                 }
 411
 412                 if(screen_duck_list.front().hover && !screen_duck_list.back().hover && screen_duck_list.size()>1)
 413                 {
 414                         screen_duck_list.push_back(screen_duck_list.front());
 415                         continue;
 416                 }
 417
 418                 if(screen_duck_list.front().hover)
 419                 {
 420                         radius+=2;
 421                         outline++;
 422                 }
 423
 424                 gc->set_function(Gdk::COPY);
 425                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 426                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 427                 drawable->draw_arc(
 428                         gc,
 429                         true,
 430                         round_to_int(screen_duck_list.front().pos[0]-radius),
 431                         round_to_int(screen_duck_list.front().pos[1]-radius),
 432                         radius*2,
 433                         radius*2,
 434                         0,
 435                         360*64
 436                 );
 437
 438
 439                 gc->set_rgb_fg_color(color);
 440
 441                 drawable->draw_arc(
 442                         gc,
 443                         true,
 444                         round_to_int(screen_duck_list.front().pos[0]-radius+outline),
 445                         round_to_int(screen_duck_list.front().pos[1]-radius+outline),
 446                         radius*2-outline*2,
 447                         radius*2-outline*2,
 448                         0,
 449                         360*64
 450                 );
 451         }
 452 }