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