synfig-studio/trunk/src/gtkmm/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 **
  10 **      This package is free software; you can redistribute it and/or
  11 **      modify it under the terms of the GNU General Public License as
  12 **      published by the Free Software Foundation; either version 2 of
  13 **      the License, or (at your option) any later version.
  14 **
  15 **      This package is distributed in the hope that it will be useful,
  16 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18 **      General Public License for more details.
  19 **      \endlegal
  20 */
  21 /* ========================================================================= */
  22
  23 /* === H E A D E R S ======================================================= */
  24
  25 #ifdef USING_PCH
  26 #       include "pch.h"
  27 #else
  28 #ifdef HAVE_CONFIG_H
  29 #       include <config.h>
  30 #endif
  31
  32 #include "renderer_ducks.h"
  33 #include "workarea.h"
  34 #include "duckmatic.h"
  35 #include <ETL/bezier>
  36 #include <ETL/misc>
  37 #include "widget_color.h"
  38 #include <synfig/distance.h>
  39 #include "app.h"
  40
  41 #include "general.h"
  42
  43 #endif
  44
  45 /* === U S I N G =========================================================== */
  46
  47 using namespace std;
  48 using namespace etl;
  49 using namespace synfig;
  50 using namespace studio;
  51
  52 /* === M A C R O S ========================================================= */
  53
  54 /* === G L O B A L S ======================================================= */
  55
  56 /* === P R O C E D U R E S ================================================= */
  57
  58 /* === M E T H O D S ======================================================= */
  59
  60 Renderer_Ducks::~Renderer_Ducks()
  61 {
  62 }
  63
  64 /*
  65 bool
  66 Renderer_Ducks::get_enabled_vfunc()const
  67 {
  68         return get_work_area()->grid_status();
  69 }
  70 */
  71
  72 struct ScreenDuck
  73 {
  74         synfig::Point pos;
  75         Gdk::Color color;
  76         bool selected;
  77         bool hover;
  78         Real width;
  79
  80         ScreenDuck():width(0) { }
  81 };
  82
  83 void
  84 Renderer_Ducks::render_vfunc(
  85         const Glib::RefPtr<Gdk::Drawable>& drawable,
  86         const Gdk::Rectangle& /*expose_area*/
  87 )
  88 {
  89         assert(get_work_area());
  90         if(!get_work_area())
  91                 return;
  92
  93         const synfig::Vector focus_point(get_work_area()->get_focus_point());
  94
  95
  96         int drawable_w,drawable_h;
  97         drawable->get_size(drawable_w,drawable_h);
  98
  99         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(drawable));
 100
 101
 102         const synfig::Vector::value_type window_startx(get_work_area()->get_window_tl()[0]);
 103         const synfig::Vector::value_type window_starty(get_work_area()->get_window_tl()[1]);
 104
 105         const float pw(get_pw()),ph(get_ph());
 106
 107         const std::list<etl::handle<Duckmatic::Bezier> >& bezier_list(get_work_area()->bezier_list());
 108         const bool solid_lines(get_work_area()->solid_lines);
 109
 110         const std::list<handle<Duckmatic::Stroke> >& stroke_list(get_work_area()->stroke_list());
 111
 112         Glib::RefPtr<Pango::Layout> layout(Pango::Layout::create(get_work_area()->get_pango_context()));
 113
 114         // Render the strokes
 115         for(std::list<handle<Duckmatic::Stroke> >::const_iterator iter=stroke_list.begin();iter!=stroke_list.end();++iter)
 116         {
 117                 Point window_start(window_startx,window_starty);
 118                 vector<Gdk::Point> points;
 119                 std::list<synfig::Point>::iterator iter2;
 120                 Point holder;
 121
 122                 for(iter2=(*iter)->stroke_data->begin();iter2!=(*iter)->stroke_data->end();++iter2)
 123                 {
 124                         holder=*iter2-window_start;
 125                         holder[0]/=pw;holder[1]/=ph;
 126                         points.push_back(Gdk::Point(round_to_int(holder[0]),round_to_int(holder[1])));
 127                 }
 128
 129                 gc->set_rgb_fg_color(colorconv_synfig2gdk((*iter)->color));
 130                 gc->set_function(Gdk::COPY);
 131                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 132
 133                 // Draw the stroke
 134                 drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 135         }
 136
 137
 138
 139         // Render the beziers
 140         for(std::list<handle<Duckmatic::Bezier> >::const_iterator iter=bezier_list.begin();iter!=bezier_list.end();++iter)
 141         {
 142                 Point window_start(window_startx,window_starty);
 143                 Point p1((*iter)->p1->get_trans_point()-window_start);
 144                 Point p2((*iter)->p2->get_trans_point()-window_start);
 145                 Point c1((*iter)->c1->get_trans_point()-window_start);
 146                 Point c2((*iter)->c2->get_trans_point()-window_start);
 147                 p1[0]/=pw;p1[1]/=ph;
 148                 p2[0]/=pw;p2[1]/=ph;
 149                 c1[0]/=pw;c1[1]/=ph;
 150                 c2[0]/=pw;c2[1]/=ph;
 151                 bezier<Point> curve(p1,c1,c2,p2);
 152                 vector<Gdk::Point> points;
 153
 154                 float f;
 155                 Point pt;
 156                 for(f=0;f<1.0;f+=1.0/17.0)
 157                 {
 158                         pt=curve(f);
 159                         points.push_back(Gdk::Point(round_to_int(pt[0]),round_to_int(pt[1])));
 160                 }
 161                 points.push_back(Gdk::Point(round_to_int(p2[0]),round_to_int(p2[1])));
 162
 163                 // Draw the curve
 164 /*              if(solid_lines)
 165                 {
 166                         gc->set_rgb_fg_color(DUCK_COLOR_BEZIER_1);
 167                         gc->set_function(Gdk::COPY);
 168                         gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 169                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 170                         gc->set_rgb_fg_color(DUCK_COLOR_BEZIER_2);
 171                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 172                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 173                 }
 174                 else
 175 */
 176                 {
 177 //                      gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 178 //                      gc->set_function(Gdk::INVERT);
 179 //                      gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 180 //                      drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 181                         gc->set_rgb_fg_color(DUCK_COLOR_BEZIER_1);
 182                         gc->set_function(Gdk::COPY);
 183                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 184                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 185                         gc->set_rgb_fg_color(DUCK_COLOR_BEZIER_2);
 186                         gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 187                         drawable->draw_lines(gc, Glib::ArrayHandle<Gdk::Point>(points));
 188
 189                 }
 190         }
 191
 192
 193         const DuckList duck_list(get_work_area()->get_duck_list());
 194         //Gtk::StateType state = Gtk::STATE_ACTIVE;
 195         Gtk::ShadowType shadow=Gtk::SHADOW_OUT;
 196         std::list<ScreenDuck> screen_duck_list;
 197         const float radius((abs(pw)+abs(ph))*4);
 198
 199         etl::handle<Duck> hover_duck(get_work_area()->find_duck(get_work_area()->get_cursor_pos(),radius, get_work_area()->get_type_mask()));
 200
 201         // Render the ducks
 202         for(std::list<handle<Duck> >::const_iterator iter=duck_list.begin();iter!=duck_list.end();++iter)
 203         {
 204
 205                 // If this type of duck has been masked, then skip it
 206                 if((*iter)->get_type() && (!(get_work_area()->get_type_mask() & (*iter)->get_type())))
 207                         continue;
 208
 209 //              Real x,y;
 210         //      Gdk::Rectangle area;
 211                 Point point((*iter)->get_trans_point());
 212                 Point origin((*iter)->get_trans_origin());
 213
 214                 point[0]=(point[0]-window_startx)/pw;
 215                 point[1]=(point[1]-window_starty)/ph;
 216
 217                 bool has_connect(false);
 218                 if((*iter)->get_tangent() || (*iter)->get_type()&Duck::TYPE_ANGLE)
 219                 {
 220                         has_connect=true;
 221                 }
 222                 if((*iter)->get_connect_duck())
 223                 {
 224                         has_connect=true;
 225                         origin=(*iter)->get_connect_duck()->get_trans_point();
 226                 }
 227
 228                 origin[0]=(origin[0]-window_startx)/pw;
 229                 origin[1]=(origin[1]-window_starty)/ph;
 230
 231 #ifdef RESTRICT_RADIUS_DUCKS_TO_ONE_QUARTER
 232                 if((*iter)->is_radius())
 233                 {
 234                         if (point[0] < origin[0]) point[0] = origin[0];
 235                         if (point[1] > origin[1]) point[1] = origin[1];
 236                 }
 237 #endif
 238
 239                 bool selected(get_work_area()->duck_is_selected(*iter));
 240                 bool hover(*iter==hover_duck);
 241
 242                 shadow = selected?Gtk::SHADOW_IN:Gtk::SHADOW_OUT;
 243
 244                 if(get_work_area()->get_selected_value_node())
 245                 {
 246                         synfigapp::ValueDesc value_desc((*iter)->get_value_desc());
 247                         if(value_desc.is_valid() && value_desc.is_value_node() && get_work_area()->get_selected_value_node()==value_desc.get_value_node())
 248                         {
 249                                 gc->set_function(Gdk::COPY);
 250                                 gc->set_rgb_fg_color(DUCK_COLOR_SELECTED);
 251                                 //gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 252                                 gc->set_line_attributes(2,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 253
 254                                 drawable->draw_rectangle(gc,false,
 255                                         round_to_int(point[0]-5),
 256                                         round_to_int(point[1]-5),
 257                                         10,
 258                                         10
 259                                 );
 260                         }
 261
 262                 }
 263
 264                 if((*iter)->get_box_duck())
 265                 {
 266                         Point boxpoint((*iter)->get_box_duck()->get_trans_point());
 267                         boxpoint[0]=(boxpoint[0]-window_startx)/pw;
 268                         boxpoint[1]=(boxpoint[1]-window_starty)/ph;
 269                         Point tl(min(point[0],boxpoint[0]),min(point[1],boxpoint[1]));
 270
 271                         gc->set_function(Gdk::COPY);
 272                         gc->set_rgb_fg_color(DUCK_COLOR_BOX_1);
 273                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 274                         drawable->draw_rectangle(gc,false,
 275                                 round_to_int(tl[0]),
 276                                 round_to_int(tl[1]),
 277                                 round_to_int(abs(boxpoint[0]-point[0])),
 278                                 round_to_int(abs(boxpoint[1]-point[1]))
 279                         );
 280                         gc->set_function(Gdk::COPY);
 281                         gc->set_rgb_fg_color(DUCK_COLOR_BOX_2);
 282                         gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 283                         drawable->draw_rectangle(gc,false,
 284                                 round_to_int(tl[0]),
 285                                 round_to_int(tl[1]),
 286                                 round_to_int(abs(boxpoint[0]-point[0])),
 287                                 round_to_int(abs(boxpoint[1]-point[1]))
 288                         );
 289                 }
 290
 291                 ScreenDuck screen_duck;
 292                 screen_duck.pos=point;
 293                 screen_duck.selected=selected;
 294                 screen_duck.hover=hover;
 295
 296                 if(!(*iter)->get_editable())
 297                         screen_duck.color=(DUCK_COLOR_NOT_EDITABLE);
 298                 else if((*iter)->get_tangent())
 299                         screen_duck.color=((*iter)->get_scalar()<0 ? DUCK_COLOR_TANGENT_1 : DUCK_COLOR_TANGENT_2);
 300                 else if((*iter)->get_type()&Duck::TYPE_VERTEX)
 301                         screen_duck.color=DUCK_COLOR_VERTEX;
 302                 else if((*iter)->get_type()&Duck::TYPE_RADIUS)
 303                         screen_duck.color=DUCK_COLOR_RADIUS;
 304                 else if((*iter)->get_type()&Duck::TYPE_WIDTH)
 305                         screen_duck.color=DUCK_COLOR_WIDTH;
 306                 else if((*iter)->get_type()&Duck::TYPE_ANGLE)
 307                         screen_duck.color=(DUCK_COLOR_ANGLE);
 308                 else
 309                         screen_duck.color=DUCK_COLOR_OTHER;
 310
 311                 screen_duck_list.push_front(screen_duck);
 312
 313                 if(has_connect)
 314                 {
 315                         if(solid_lines)
 316                         {
 317                                 gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 318                                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 319                                 gc->set_function(Gdk::COPY);
 320                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 321                                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 322                                 gc->set_rgb_fg_color(Gdk::Color("#9fefef"));
 323                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 324                         }
 325                         else
 326                         {
 327 //                              gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 328 //                              gc->set_function(Gdk::INVERT);
 329 //                              drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 330                                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 331                                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 332                                 gc->set_function(Gdk::COPY);
 333                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 334                                 gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 335                                 gc->set_rgb_fg_color(Gdk::Color("#9fefef"));
 336                                 drawable->draw_line(gc, (int)origin[0],(int)origin[1],(int)(point[0]),(int)(point[1]));
 337                         }
 338                 }
 339
 340                 if((*iter)->is_radius())
 341                 {
 342                         const Real mag((point-origin).mag());
 343                         const int d(round_to_int(mag*2));
 344                         const int x(round_to_int(origin[0]-mag));
 345                         const int y(round_to_int(origin[1]-mag));
 346
 347                         if(solid_lines)
 348                         {
 349                                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 350                                 gc->set_function(Gdk::COPY);
 351                                 gc->set_line_attributes(3,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 352                                 drawable->draw_arc(
 353                                         gc,
 354                                         false,
 355                                         x,
 356                                         y,
 357                                         d,
 358                                         d,
 359                                         0,
 360                                         360*64
 361                                 );
 362                                 gc->set_rgb_fg_color(Gdk::Color("#afafaf"));
 363                         }
 364                         else
 365                         {
 366                                 gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 367                                 gc->set_function(Gdk::INVERT);
 368                         }
 369                         gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 370
 371                         drawable->draw_arc(
 372                                 gc,
 373                                 false,
 374                                 x,
 375                                 y,
 376                                 d,
 377                                 d,
 378                                 0,
 379                                 360*64
 380                         );
 381
 382                         if(hover)
 383                         {
 384 #ifdef RESTRICT_RADIUS_DUCKS_TO_ONE_QUARTER
 385                                 Point point2((*iter)->get_trans_point());
 386                                 Point origin2((*iter)->get_trans_origin());
 387
 388                                 if ((point2[0] - origin2[0]) * pw < 0) point2[0] = origin2[0];
 389                                 if ((point2[1] - origin2[1]) * ph > 0) point2[1] = origin2[1];
 390
 391                                 Distance real_mag((point2-origin2).mag(),Distance::SYSTEM_UNITS);
 392 #else
 393                                 Distance real_mag(((*iter)->get_trans_point()-(*iter)->get_trans_origin()).mag(),Distance::SYSTEM_UNITS);
 394 #endif
 395                                 real_mag.convert(App::distance_system,get_work_area()->get_rend_desc());
 396                                 layout->set_text(real_mag.get_string());
 397
 398                                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 399                                 drawable->draw_layout(
 400                                         gc,
 401                                         round_to_int(point[0])+1+6,
 402                                         round_to_int(point[1])+1-8,
 403                                         layout
 404                                 );
 405                                 gc->set_rgb_fg_color(Gdk::Color("#FF00FF"));
 406                                 drawable->draw_layout(
 407                                         gc,
 408                                         round_to_int(point[0])+6,
 409                                         round_to_int(point[1])-8,
 410                                         layout
 411                                 );
 412                         }
 413
 414                 }
 415
 416         }
 417
 418
 419         for(;screen_duck_list.size();screen_duck_list.pop_front())
 420         {
 421                 int radius=4;
 422                 int outline=1;
 423                 Gdk::Color color(screen_duck_list.front().color);
 424
 425                 if(!screen_duck_list.front().selected)
 426                 {
 427                         color.set_red(color.get_red()*2/3);
 428                         color.set_green(color.get_green()*2/3);
 429                         color.set_blue(color.get_blue()*2/3);
 430                 }
 431
 432                 if(screen_duck_list.front().hover && !screen_duck_list.back().hover && screen_duck_list.size()>1)
 433                 {
 434                         screen_duck_list.push_back(screen_duck_list.front());
 435                         continue;
 436                 }
 437
 438                 if(screen_duck_list.front().hover)
 439                 {
 440                         radius+=2;
 441                         outline++;
 442                 }
 443
 444                 gc->set_function(Gdk::COPY);
 445                 gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 446                 gc->set_rgb_fg_color(DUCK_COLOR_OUTLINE);
 447                 drawable->draw_arc(
 448                         gc,
 449                         true,
 450                         round_to_int(screen_duck_list.front().pos[0]-radius),
 451                         round_to_int(screen_duck_list.front().pos[1]-radius),
 452                         radius*2,
 453                         radius*2,
 454                         0,
 455                         360*64
 456                 );
 457
 458
 459                 gc->set_rgb_fg_color(color);
 460
 461                 drawable->draw_arc(
 462                         gc,
 463                         true,
 464                         round_to_int(screen_duck_list.front().pos[0]-radius+outline),
 465                         round_to_int(screen_duck_list.front().pos[1]-radius+outline),
 466                         radius*2-outline*2,
 467                         radius*2-outline*2,
 468                         0,
 469                         360*64
 470                 );
 471         }
 472 }