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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file widget_coloredit.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 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 "widget_coloredit.h"
  34 #include <cmath>
  35 #include "app.h"
  36 #include <gtkmm/drawingarea.h>
  37 #include <pangomm/attributes.h>
  38 #include <pangomm/attrlist.h>
  39 #include <algorithm>
  40 #include <gtkmm/notebook.h>
  41 #include <gtkmm/box.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 /* === C L A S S E S ======================================================= */
  61
  62 ColorSlider::ColorSlider(const ColorSlider::Type &x):
  63         type(x)
  64 {
  65         signal_expose_event().connect(sigc::mem_fun(*this, &ColorSlider::redraw));
  66         set_size_request(-1,12);
  67         add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
  68         add_events(Gdk::BUTTON1_MOTION_MASK);
  69 }
  70
  71 void
  72 ColorSlider::set_type(Type x) { type=x; queue_draw(); }
  73
  74 void
  75 ColorSlider::set_color(Color x) { color_=x; queue_draw(); }
  76
  77 void
  78 ColorSlider::slider_color_TYPE_R(Color &color, float amount) { color.set_r(amount); }
  79 void
  80 ColorSlider::slider_color_TYPE_G(Color &color, float amount) { color.set_g(amount); }
  81 void
  82 ColorSlider::slider_color_TYPE_B(Color &color, float amount) { color.set_b(amount); }
  83 void
  84 ColorSlider::slider_color_TYPE_Y(Color &color, float amount) { color.set_y(amount); }
  85 void
  86 ColorSlider::slider_color_TYPE_U(Color &color, float amount) { color.set_u(amount-0.5f); }
  87 void
  88 ColorSlider::slider_color_TYPE_V(Color &color, float amount) { color.set_v(amount-0.5f); }
  89 void
  90 ColorSlider::slider_color_TYPE_HUE(Color &color, float amount) { color.set_uv_angle(Angle::rot(amount)); }
  91 void
  92 ColorSlider::slider_color_TYPE_SAT(Color &color, float amount) { color.set_s(amount*0.5f); }
  93 void
  94 ColorSlider::slider_color_TYPE_A(Color &color, float amount) { color.set_a(amount); }
  95
  96 void
  97 ColorSlider::adjust_color(Type type, Color &color, float amount)
  98 {
  99         static const slider_color_func jump_table[int(TYPE_END)] =
 100         {
 101                 slider_color_TYPE_R,
 102                 slider_color_TYPE_G,
 103                 slider_color_TYPE_B,
 104                 slider_color_TYPE_Y,
 105                 slider_color_TYPE_U,
 106                 slider_color_TYPE_V,
 107                 slider_color_TYPE_HUE,
 108                 slider_color_TYPE_SAT,
 109                 slider_color_TYPE_A,
 110         };
 111         jump_table[int(type)](color,amount);
 112 }
 113
 114 bool
 115 ColorSlider::redraw(GdkEventExpose */*bleh*/)
 116 {
 117         Color color(color_);
 118
 119         static const slider_color_func jump_table[int(TYPE_END)] =
 120         {
 121                 slider_color_TYPE_R,
 122                 slider_color_TYPE_G,
 123                 slider_color_TYPE_B,
 124                 slider_color_TYPE_Y,
 125                 slider_color_TYPE_U,
 126                 slider_color_TYPE_V,
 127                 slider_color_TYPE_HUE,
 128                 slider_color_TYPE_SAT,
 129                 slider_color_TYPE_A,
 130         };
 131
 132         slider_color_func color_func(jump_table[int(type)]);
 133
 134         float amount;
 135         switch(type)
 136         {
 137                 case TYPE_R: amount=color.get_r(); break;
 138                 case TYPE_G: amount=color.get_g(); break;
 139                 case TYPE_B: amount=color.get_b(); break;
 140                 case TYPE_Y: amount=color.get_y(); break;
 141                 case TYPE_U: amount=color.get_u()+0.5; break;
 142                 case TYPE_V: amount=color.get_v()+0.5; break;
 143                 case TYPE_HUE: amount=Angle::rot(color.get_uv_angle()).get(); amount-=floor(amount); break;
 144                 case TYPE_SAT: amount=color.get_s()*2.0; break;
 145                 case TYPE_A: amount=color.get_a(); break;
 146                 default: amount=0; break;
 147         }
 148         if(use_colorspace_gamma() && (type<TYPE_U))
 149                 amount=gamma_in(amount);
 150
 151         const int height(get_height());
 152         const int width(get_width());
 153
 154         Gdk::Rectangle ca(0,0,width,height);
 155
 156         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(get_window()));
 157         const Color bg1(0.75, 0.75, 0.75);
 158         const Color bg2(0.5, 0.5, 0.5);
 159         int i;
 160         for(i=width-1;i>=0;i--)
 161         {
 162                 color_func(color,
 163                                    (use_colorspace_gamma() && type<TYPE_U)
 164                                    ? gamma_out(float(i)/float(width))
 165                                    :              (float(i)/float(width)));
 166                 const Color c1(Color::blend(color,bg1,1.0).clamped());
 167                 const Color c2(Color::blend(color,bg2,1.0).clamped());
 168                 assert(c1.is_valid());
 169                 assert(c2.is_valid());
 170
 171                 if((i*2/height)&1)
 172                 {
 173                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c1));
 174                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y(), 1, height/2);
 175
 176                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c2));
 177                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y()+height/2, 1, height/2);
 178                 }
 179                 else
 180                 {
 181                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c2));
 182                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y(), 1, height/2);
 183
 184                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c1));
 185                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y()+height/2, 1, height/2);
 186                 }
 187         }
 188
 189         get_style()->paint_arrow(
 190                 get_window(),
 191                 Gtk::STATE_SELECTED,
 192                 Gtk::SHADOW_OUT,
 193                 ca,
 194                 *this,
 195                 " ",
 196                 Gtk::ARROW_UP,
 197                 1,
 198                 int(amount*width)-height/2,
 199                 0,
 200                 height,
 201                 height
 202         );
 203
 204         gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 205         get_window()->draw_rectangle(gc, false, ca.get_x()+1, ca.get_y()+1, width-3, height-3);
 206         gc->set_rgb_fg_color(Gdk::Color("#000000"));
 207         get_window()->draw_rectangle(gc, false, ca.get_x(), ca.get_y(), width-1, height-1);
 208         return true;
 209 }
 210
 211 bool
 212 ColorSlider::on_event(GdkEvent *event)
 213 {
 214         float pos(event->button.x/(float)get_width());
 215         if(pos<0 || event->button.x<=0)pos=0;
 216         if(pos>1)pos=1;
 217
 218         if(use_colorspace_gamma() && (type<TYPE_U))
 219                 pos=gamma_out(pos);
 220         if(pos<0 || event->button.x<=0)pos=0;
 221         if(pos>1)pos=1;
 222
 223         switch(event->type)
 224         {
 225         case GDK_BUTTON_RELEASE:
 226                 signal_activated_();
 227                 return true;
 228
 229         case GDK_MOTION_NOTIFY:
 230 //              adjust_color(type,color_,pos);
 231                 signal_slider_moved_(type,pos);
 232                 queue_draw();
 233                 return true;
 234                 break;
 235         default:
 236                 break;
 237         }
 238         return false;
 239 }
 240
 241 /* === M E T H O D S ======================================================= */
 242
 243 Widget_ColorEdit::Widget_ColorEdit():
 244         R_adjustment(0,-10000000,10000000,1,10,0),
 245         G_adjustment(0,-10000000,10000000,1,10,0),
 246         B_adjustment(0,-10000000,10000000,1,10,0),
 247         A_adjustment(0,-10000000,10000000,1,10,0)
 248 {
 249         notebook=manage(new Gtk::Notebook);
 250
 251         Gtk::Table* rgb_table(manage(new Gtk::Table()));
 252         Gtk::Table* yuv_table(manage(new Gtk::Table()));
 253         Gtk::Table* main_table(this);
 254
 255         {
 256                 Gtk::VBox* rgb_box(manage(new Gtk::VBox()));
 257                 Gtk::VBox* yuv_box(manage(new Gtk::VBox()));
 258                 rgb_box->pack_start(*rgb_table,false,false);
 259                 yuv_box->pack_start(*yuv_table,false,false);
 260                 notebook->append_page(*rgb_box,_("RGB"));
 261                 notebook->append_page(*yuv_box,_("YUV"));
 262         }
 263
 264         color=Color(0,0,0,0);
 265
 266         set_size_request(150,-1);
 267         hold_signals=true;
 268
 269         Gtk::Label *label;
 270
 271         R_adjustment.set_lower(-10000000);
 272         G_adjustment.set_lower(-10000000);
 273         B_adjustment.set_lower(-10000000);
 274         A_adjustment.set_lower(-10000000);
 275
 276         clamp_=true;
 277
 278         Pango::AttrList attr_list;
 279         Pango::AttrInt pango_size(Pango::Attribute::create_attr_size(Pango::SCALE*7));
 280         pango_size.set_start_index(0);
 281         pango_size.set_end_index(64);
 282         attr_list.change(pango_size);
 283
 284         widget_color.set_size_request(-1,16);
 285         attach(widget_color, 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 286         attach(*notebook, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 287
 288 #define SLIDER_ROW(i,n,l) \
 289         slider_##n=manage(new ColorSlider(ColorSlider::TYPE_##n));      \
 290         slider_##n->signal_slider_moved().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_slider_moved)); \
 291         /*slider_##n->signal_activated().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::activated));*/ \
 292         slider_##n->signal_activated().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed)); \
 293         label=manage(new class Gtk::Label(l,0.0,0.5)); \
 294         label->set_use_markup(false); \
 295         label->set_use_underline(false); \
 296         label->set_attributes(attr_list); \
 297         table->attach(*label, 0, 1, 1+2*i, 2+2*i, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);  \
 298         table->attach(*slider_##n, 0, 1, 2+2*i, 3+2*i, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0)
 299
 300 #define ATTACH_SPIN_BUTTON(i,n) \
 301         spinbutton_##n=manage(new class Gtk::SpinButton(n##_adjustment,1,0)); \
 302         spinbutton_##n->set_update_policy(Gtk::UPDATE_ALWAYS); \
 303         spinbutton_##n->set_size_request(48,-1); \
 304         spinbutton_##n->show(); \
 305         table->attach(*spinbutton_##n, 1, 2, 1+2*i, 3+2*i, Gtk::SHRINK, Gtk::EXPAND, 2, 0)
 306
 307         {
 308                 Gtk::Table* table(rgb_table);
 309                 SLIDER_ROW(0,R,_("Red"));
 310                 ATTACH_SPIN_BUTTON(0,R);
 311                 SLIDER_ROW(1,G,_("Green"));
 312                 ATTACH_SPIN_BUTTON(1,G);
 313                 SLIDER_ROW(2,B,_("Blue"));
 314                 ATTACH_SPIN_BUTTON(2,B);
 315
 316                 hex_color_label = manage(new Gtk::Label(_("HTML code"), 0.0, 0.5));
 317                 hex_color_label->set_use_markup(false);
 318                 hex_color_label->set_use_underline(false);
 319                 hex_color_label->set_attributes(attr_list);
 320                 table->attach(*hex_color_label, 0, 1, 7, 8, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 321
 322                 hex_color = manage(new Gtk::Entry());
 323                 hex_color->set_width_chars(8);
 324                 hex_color->signal_activate().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_hex_edited));
 325                 table->attach(*hex_color, 0, 1, 8, 9, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 326         }
 327         {
 328                 Gtk::Table* table(yuv_table);
 329                 SLIDER_ROW(0,Y,_("Luma"));
 330                 SLIDER_ROW(1,HUE,_("Hue"));
 331                 SLIDER_ROW(2,SAT,_("Saturation"));
 332                 SLIDER_ROW(3,U,_("U"));
 333                 SLIDER_ROW(4,V,_("V"));
 334         }
 335         {
 336                 Gtk::Table* table(main_table);
 337                 SLIDER_ROW(1,A,_("Alpha"));
 338                 ATTACH_SPIN_BUTTON(1,A);
 339         }
 340
 341 #undef SLIDER_ROW
 342 #undef ATTACH_SPIN_BUTTON
 343
 344         spinbutton_R->signal_activate().connect(sigc::mem_fun(*spinbutton_G,&Gtk::SpinButton::grab_focus));
 345         spinbutton_G->signal_activate().connect(sigc::mem_fun(*spinbutton_B,&Gtk::SpinButton::grab_focus));
 346         spinbutton_B->signal_activate().connect(sigc::mem_fun(*spinbutton_A,&Gtk::SpinButton::grab_focus));
 347         spinbutton_A->signal_activate().connect(sigc::mem_fun(*spinbutton_R,&Gtk::SpinButton::grab_focus));
 348
 349         R_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 350         G_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 351         B_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 352         A_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 353
 354         show_all_children();
 355
 356         set_value(color);
 357
 358         hold_signals=false;
 359 }
 360
 361 Widget_ColorEdit::~Widget_ColorEdit()
 362 {
 363 }
 364
 365 void
 366 Widget_ColorEdit::on_slider_moved(ColorSlider::Type type, float amount)
 367 {
 368         Color color(get_value_raw());
 369
 370         assert(color.is_valid());
 371         ColorSlider::adjust_color(type,color,amount);
 372         assert(color.is_valid());
 373
 374         // If a non-primary colorslider is adjusted,
 375         // we want to make sure that we clamp
 376         if(type>ColorSlider::TYPE_B && (color.get_r()<0 ||color.get_g()<0 ||color.get_b()<0))
 377                 clamp_=true;
 378
 379         /*
 380         if(type==ColorSlider::TYPE_R && color.get_r()<0)clamp_=false;
 381         if(type==ColorSlider::TYPE_G && color.get_g()<0)clamp_=false;
 382         if(type==ColorSlider::TYPE_B && color.get_b()<0)clamp_=false;
 383         */
 384         clamp_=false;
 385
 386         set_value(color);
 387         assert(color.is_valid());
 388 }
 389
 390 void
 391 Widget_ColorEdit::on_hex_edited()
 392 {
 393         Color color(get_value_raw());
 394         String s = hex_color->get_text();
 395         color.set_hex(s);
 396         set_value(color);
 397         signal_value_changed_();
 398 }
 399
 400 void
 401 Widget_ColorEdit::on_value_changed()
 402 {
 403         if(hold_signals)
 404                 return;
 405
 406         const Color color(get_value_raw());
 407         assert(color.is_valid());
 408         slider_R->set_color(color);
 409         slider_G->set_color(color);
 410         slider_B->set_color(color);
 411         slider_Y->set_color(color);
 412         slider_U->set_color(color);
 413         slider_V->set_color(color);
 414         slider_HUE->set_color(color);
 415         slider_SAT->set_color(color);
 416         slider_A->set_color(color);
 417         hex_color->set_text(color.get_hex());
 418         widget_color.set_value(color);
 419
 420         activate();
 421         signal_value_changed_();
 422 }
 423
 424 void
 425 Widget_ColorEdit::set_has_frame(bool x)
 426 {
 427         spinbutton_R->set_has_frame(x);
 428         spinbutton_G->set_has_frame(x);
 429         spinbutton_B->set_has_frame(x);
 430         spinbutton_A->set_has_frame(x);
 431         spinbutton_R->set_size_request(48,-1);
 432         spinbutton_G->set_size_request(48,-1);
 433         spinbutton_B->set_size_request(48,-1);
 434         spinbutton_A->set_size_request(48,-1);
 435 }
 436
 437 void
 438 Widget_ColorEdit::set_digits(int x)
 439 {
 440         spinbutton_R->set_digits(x);
 441         spinbutton_G->set_digits(x);
 442         spinbutton_B->set_digits(x);
 443         spinbutton_A->set_digits(x);
 444         spinbutton_R->set_size_request(48,-1);
 445         spinbutton_G->set_size_request(48,-1);
 446         spinbutton_B->set_size_request(48,-1);
 447         spinbutton_A->set_size_request(48,-1);
 448 }
 449
 450 void
 451 Widget_ColorEdit::set_value(const synfig::Color &data)
 452 {
 453         assert(data.is_valid());
 454         hold_signals=true;
 455         clamp_=false;
 456
 457         color=data;
 458
 459         if(use_colorspace_gamma())
 460         {
 461                 R_adjustment.set_value(gamma_in(color.get_r())*100);
 462                 G_adjustment.set_value(gamma_in(color.get_g())*100);
 463                 B_adjustment.set_value(gamma_in(color.get_b())*100);
 464         }
 465         else
 466         {
 467                 R_adjustment.set_value(color.get_r()*100);
 468                 G_adjustment.set_value(color.get_g()*100);
 469                 B_adjustment.set_value(color.get_b()*100);
 470         }
 471         A_adjustment.set_value(color.get_a()*100);
 472
 473         slider_R->set_color(color);
 474         slider_G->set_color(color);
 475         slider_B->set_color(color);
 476         slider_Y->set_color(color);
 477         slider_U->set_color(color);
 478         slider_V->set_color(color);
 479         slider_HUE->set_color(color);
 480         slider_SAT->set_color(color);
 481         slider_A->set_color(color);
 482         hex_color->set_text(color.get_hex());
 483         widget_color.set_value(color);
 484
 485         hold_signals=false;
 486 }
 487
 488 synfig::Color
 489 Widget_ColorEdit::get_value_raw()
 490 {
 491         Color color;
 492         if(use_colorspace_gamma())
 493         {
 494                 color.set_r(gamma_out(R_adjustment.get_value()/100.0f));
 495                 color.set_g(gamma_out(G_adjustment.get_value()/100.0f));
 496                 color.set_b(gamma_out(B_adjustment.get_value()/100.0f));
 497         }
 498         else
 499         {
 500                 color.set_r(R_adjustment.get_value()/100);
 501                 color.set_g(G_adjustment.get_value()/100);
 502                 color.set_b(B_adjustment.get_value()/100);
 503         }
 504         color.set_a(A_adjustment.get_value()/100);
 505         assert(color.is_valid());
 506
 507         return color;
 508 }
 509
 510 const synfig::Color &
 511 Widget_ColorEdit::get_value()
 512 {
 513         if(use_colorspace_gamma())
 514         {
 515                 color.set_r(gamma_out(R_adjustment.get_value()/100.0f));
 516                 color.set_g(gamma_out(G_adjustment.get_value()/100.0f));
 517                 color.set_b(gamma_out(B_adjustment.get_value()/100.0f));
 518                 assert(color.is_valid());
 519         }
 520         else
 521         {
 522                 color.set_r(R_adjustment.get_value()/100);
 523                 color.set_g(G_adjustment.get_value()/100);
 524                 color.set_b(B_adjustment.get_value()/100);
 525                 assert(color.is_valid());
 526         }
 527         color.set_a(A_adjustment.get_value()/100);
 528         assert(color.is_valid());
 529
 530         if(notebook->get_current_page()!=0)
 531                 color=color.clamped();
 532
 533         /*{
 534                 // Clamp out negative values
 535                 color.set_r(std::max(0.0f,(float)color.get_r()));
 536                 color.set_g(std::max(0.0f,(float)color.get_g()));
 537                 color.set_b(std::max(0.0f,(float)color.get_b()));
 538         }*/
 539
 540         return color;
 541 }