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 **
  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 "widget_coloredit.h"
  33 #include <cmath>
  34 #include "app.h"
  35 #include <gtkmm/drawingarea.h>
  36 #include <pangomm/attributes.h>
  37 #include <pangomm/attrlist.h>
  38 #include <algorithm>
  39 #include <gtkmm/notebook.h>
  40 #include <gtkmm/box.h>
  41
  42 #endif
  43
  44 /* === U S I N G =========================================================== */
  45
  46 using namespace std;
  47 using namespace etl;
  48 using namespace synfig;
  49 using namespace studio;
  50
  51 /* === M A C R O S ========================================================= */
  52
  53 /* === G L O B A L S ======================================================= */
  54
  55 /* === P R O C E D U R E S ================================================= */
  56
  57 /* === C L A S S E S ======================================================= */
  58
  59 ColorSlider::ColorSlider(const ColorSlider::Type &x):
  60         type(x)
  61 {
  62         signal_expose_event().connect(sigc::mem_fun(*this, &ColorSlider::redraw));
  63         set_size_request(-1,12);
  64         add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
  65         add_events(Gdk::BUTTON1_MOTION_MASK);
  66 }
  67
  68 void
  69 ColorSlider::set_type(Type x) { type=x; queue_draw(); }
  70
  71 void
  72 ColorSlider::set_color(Color x) { color_=x; queue_draw(); }
  73
  74 void
  75 ColorSlider::slider_color_TYPE_R(Color &color, float amount) { color.set_r(amount); }
  76 void
  77 ColorSlider::slider_color_TYPE_G(Color &color, float amount) { color.set_g(amount); }
  78 void
  79 ColorSlider::slider_color_TYPE_B(Color &color, float amount) { color.set_b(amount); }
  80 void
  81 ColorSlider::slider_color_TYPE_Y(Color &color, float amount) { color.set_y(amount); }
  82 void
  83 ColorSlider::slider_color_TYPE_U(Color &color, float amount) { color.set_u(amount-0.5f); }
  84 void
  85 ColorSlider::slider_color_TYPE_V(Color &color, float amount) { color.set_v(amount-0.5f); }
  86 void
  87 ColorSlider::slider_color_TYPE_HUE(Color &color, float amount) { color.set_uv_angle(Angle::rot(amount)); }
  88 void
  89 ColorSlider::slider_color_TYPE_SAT(Color &color, float amount) { color.set_s(amount*0.5f); }
  90 void
  91 ColorSlider::slider_color_TYPE_A(Color &color, float amount) { color.set_a(amount); }
  92
  93 void
  94 ColorSlider::adjust_color(Type type, Color &color, float amount)
  95 {
  96         static const slider_color_func jump_table[int(TYPE_END)] =
  97         {
  98                 slider_color_TYPE_R,
  99                 slider_color_TYPE_G,
 100                 slider_color_TYPE_B,
 101                 slider_color_TYPE_Y,
 102                 slider_color_TYPE_U,
 103                 slider_color_TYPE_V,
 104                 slider_color_TYPE_HUE,
 105                 slider_color_TYPE_SAT,
 106                 slider_color_TYPE_A,
 107         };
 108         jump_table[int(type)](color,amount);
 109 }
 110
 111 bool
 112 ColorSlider::redraw(GdkEventExpose */*bleh*/)
 113 {
 114         Color color(color_);
 115
 116         static const slider_color_func jump_table[int(TYPE_END)] =
 117         {
 118                 slider_color_TYPE_R,
 119                 slider_color_TYPE_G,
 120                 slider_color_TYPE_B,
 121                 slider_color_TYPE_Y,
 122                 slider_color_TYPE_U,
 123                 slider_color_TYPE_V,
 124                 slider_color_TYPE_HUE,
 125                 slider_color_TYPE_SAT,
 126                 slider_color_TYPE_A,
 127         };
 128
 129         slider_color_func color_func(jump_table[int(type)]);
 130
 131         float amount;
 132         switch(type)
 133         {
 134                 case TYPE_R: amount=color.get_r(); break;
 135                 case TYPE_G: amount=color.get_g(); break;
 136                 case TYPE_B: amount=color.get_b(); break;
 137                 case TYPE_Y: amount=color.get_y(); break;
 138                 case TYPE_U: amount=color.get_u()+0.5; break;
 139                 case TYPE_V: amount=color.get_v()+0.5; break;
 140                 case TYPE_HUE: amount=Angle::rot(color.get_uv_angle()).get(); amount-=floor(amount); break;
 141                 case TYPE_SAT: amount=color.get_s()*2.0; break;
 142                 case TYPE_A: amount=color.get_a(); break;
 143                 default: amount=0; break;
 144         }
 145         if(use_colorspace_gamma() && (type<TYPE_U))
 146                 amount=gamma_in(amount);
 147
 148         const int height(get_height());
 149         const int width(get_width());
 150
 151         Gdk::Rectangle ca(0,0,width,height);
 152
 153         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(get_window()));
 154         const Color bg1(0.75, 0.75, 0.75);
 155         const Color bg2(0.5, 0.5, 0.5);
 156         Gdk::Color gdk_c;
 157         int i;
 158         for(i=width-1;i>=0;i--)
 159         {
 160                 color_func(color,float(i)/float(width));
 161                 const Color c1(Color::blend(color,bg1,1.0).clamped());
 162                 const Color c2(Color::blend(color,bg2,1.0).clamped());
 163                 assert(c1.is_valid());
 164                 assert(c2.is_valid());
 165
 166                 gushort r1;
 167                 gushort g1;
 168                 gushort b1;
 169                 gushort r2;
 170                 gushort g2;
 171                 gushort b2;
 172
 173                 if(use_colorspace_gamma() && (type<TYPE_U))
 174                 {
 175                         r1=(256*App::gamma.r_F32_to_U8(gamma_out(c1.get_r())));
 176                         g1=(256*App::gamma.g_F32_to_U8(gamma_out(c1.get_g())));
 177                         b1=(256*App::gamma.b_F32_to_U8(gamma_out(c1.get_b())));
 178                         r2=(256*App::gamma.r_F32_to_U8(gamma_out(c2.get_r())));
 179                         g2=(256*App::gamma.g_F32_to_U8(gamma_out(c2.get_g())));
 180                         b2=(256*App::gamma.b_F32_to_U8(gamma_out(c2.get_b())));
 181                 }
 182                 else
 183                 {
 184                         r1=(256*App::gamma.r_F32_to_U8(c1.get_r()));
 185                         g1=(256*App::gamma.g_F32_to_U8(c1.get_g()));
 186                         b1=(256*App::gamma.b_F32_to_U8(c1.get_b()));
 187                         r2=(256*App::gamma.r_F32_to_U8(c2.get_r()));
 188                         g2=(256*App::gamma.g_F32_to_U8(c2.get_g()));
 189                         b2=(256*App::gamma.b_F32_to_U8(c2.get_b()));
 190                 }
 191
 192
 193                 if((i*2/height)&1)
 194                 {
 195                         gdk_c.set_rgb(r1,g1,b1);
 196                         gc->set_rgb_fg_color(gdk_c);
 197                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y(), 1, height/2);
 198
 199                         gdk_c.set_rgb(r2,g2,b2);
 200                         gc->set_rgb_fg_color(gdk_c);
 201                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y()+height/2, 1, height/2);
 202                 }
 203                 else
 204                 {
 205                         gdk_c.set_rgb(r2,g2,b2);
 206                         gc->set_rgb_fg_color(gdk_c);
 207                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y(), 1, height/2);
 208
 209                         gdk_c.set_rgb(r1,g1,b1);
 210                         gc->set_rgb_fg_color(gdk_c);
 211                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y()+height/2, 1, height/2);
 212                 }
 213         }
 214
 215         get_style()->paint_arrow(
 216                 get_window(),
 217                 Gtk::STATE_SELECTED,
 218                 Gtk::SHADOW_OUT,
 219                 ca,
 220                 *this,
 221                 " ",
 222                 Gtk::ARROW_UP,
 223                 1,
 224                 int(amount*width)-height/2,
 225                 0,
 226                 height,
 227                 height
 228         );
 229
 230         gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 231         get_window()->draw_rectangle(gc, false, ca.get_x()+1, ca.get_y()+1, width-3, height-3);
 232         gc->set_rgb_fg_color(Gdk::Color("#000000"));
 233         get_window()->draw_rectangle(gc, false, ca.get_x(), ca.get_y(), width-1, height-1);
 234         return true;
 235 }
 236
 237 bool
 238 ColorSlider::on_event(GdkEvent *event)
 239 {
 240         float pos(event->button.x/(float)get_width());
 241         if(pos<0 || event->button.x<=0)pos=0;
 242         if(pos>1)pos=1;
 243
 244         if(use_colorspace_gamma() && (type<TYPE_U))
 245                 pos=gamma_out(pos);
 246         if(pos<0 || event->button.x<=0)pos=0;
 247         if(pos>1)pos=1;
 248
 249         switch(event->type)
 250         {
 251         case GDK_BUTTON_RELEASE:
 252                 signal_activated_();
 253                 return true;
 254
 255         case GDK_MOTION_NOTIFY:
 256 //              adjust_color(type,color_,pos);
 257                 signal_slider_moved_(type,pos);
 258                 queue_draw();
 259                 return true;
 260                 break;
 261         default:
 262                 break;
 263         }
 264         return false;
 265 }
 266
 267 /* === M E T H O D S ======================================================= */
 268
 269 Widget_ColorEdit::Widget_ColorEdit():
 270         R_adjustment(0,-10000000,10000000,1,10,0),
 271         G_adjustment(0,-10000000,10000000,1,10,0),
 272         B_adjustment(0,-10000000,10000000,1,10,0),
 273         A_adjustment(0,-10000000,10000000,1,10,0)
 274 {
 275         notebook=manage(new Gtk::Notebook);
 276
 277         Gtk::Table* rgb_table(manage(new Gtk::Table()));
 278         Gtk::Table* yuv_table(manage(new Gtk::Table()));
 279         Gtk::Table* main_table(this);
 280
 281         {
 282                 Gtk::VBox* rgb_box(manage(new Gtk::VBox()));
 283                 Gtk::VBox* yuv_box(manage(new Gtk::VBox()));
 284                 rgb_box->pack_start(*rgb_table,false,false);
 285                 yuv_box->pack_start(*yuv_table,false,false);
 286                 notebook->append_page(*rgb_box,_("RGB"));
 287                 notebook->append_page(*yuv_box,_("YUV"));
 288         }
 289
 290         color=Color(0,0,0,0);
 291
 292         set_size_request(150,-1);
 293         hold_signals=true;
 294
 295         Gtk::Label *label;
 296
 297         R_adjustment.set_lower(-10000000);
 298         G_adjustment.set_lower(-10000000);
 299         B_adjustment.set_lower(-10000000);
 300         A_adjustment.set_lower(-10000000);
 301
 302         clamp_=true;
 303
 304         Pango::AttrList attr_list;
 305         Pango::AttrInt pango_size(Pango::Attribute::create_attr_size(Pango::SCALE*7));
 306         pango_size.set_start_index(0);
 307         pango_size.set_end_index(64);
 308         attr_list.change(pango_size);
 309
 310         widget_color.set_size_request(-1,16);
 311         attach(widget_color, 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 312         attach(*notebook, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 313
 314 #define SLIDER_ROW(i,n,l) \
 315         slider_##n=manage(new ColorSlider(ColorSlider::TYPE_##n));      \
 316         slider_##n->signal_slider_moved().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_slider_moved)); \
 317         /*slider_##n->signal_activated().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::activated));*/ \
 318         slider_##n->signal_activated().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed)); \
 319         label=manage(new class Gtk::Label(l,0.0,0.5)); \
 320         label->set_use_markup(false); \
 321         label->set_use_underline(false); \
 322         label->set_attributes(attr_list); \
 323         table->attach(*label, 0, 1, 1+2*i, 2+2*i, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);  \
 324         table->attach(*slider_##n, 0, 1, 2+2*i, 3+2*i, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0)
 325
 326 #define ATTACH_SPIN_BUTTON(i,n) \
 327         spinbutton_##n=manage(new class Gtk::SpinButton(n##_adjustment,1,0)); \
 328         spinbutton_##n->set_update_policy(Gtk::UPDATE_ALWAYS); \
 329         spinbutton_##n->set_size_request(48,-1); \
 330         spinbutton_##n->show(); \
 331         table->attach(*spinbutton_##n, 1, 2, 1+2*i, 3+2*i, Gtk::SHRINK, Gtk::EXPAND, 2, 0)
 332
 333         {
 334                 Gtk::Table* table(rgb_table);
 335                 SLIDER_ROW(0,R,_("Red"));
 336                 ATTACH_SPIN_BUTTON(0,R);
 337                 SLIDER_ROW(1,G,_("Green"));
 338                 ATTACH_SPIN_BUTTON(1,G);
 339                 SLIDER_ROW(2,B,_("Blue"));
 340                 ATTACH_SPIN_BUTTON(2,B);
 341
 342                 hex_color_label = manage(new Gtk::Label(_("HTML code"), 0.0, 0.5));
 343                 hex_color_label->set_use_markup(false);
 344                 hex_color_label->set_use_underline(false);
 345                 hex_color_label->set_attributes(attr_list);
 346                 table->attach(*hex_color_label, 0, 1, 7, 8, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 347
 348                 hex_color = manage(new Gtk::Entry());
 349                 hex_color->set_width_chars(8);
 350                 hex_color->signal_activate().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_hex_edited));
 351                 table->attach(*hex_color, 0, 1, 8, 9, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 352         }
 353         {
 354                 Gtk::Table* table(yuv_table);
 355                 SLIDER_ROW(0,Y,_("Luma"));
 356                 SLIDER_ROW(1,HUE,_("Hue"));
 357                 SLIDER_ROW(2,SAT,_("Saturation"));
 358                 SLIDER_ROW(3,U,_("U"));
 359                 SLIDER_ROW(4,V,_("V"));
 360         }
 361         {
 362                 Gtk::Table* table(main_table);
 363                 SLIDER_ROW(1,A,_("Alpha"));
 364                 ATTACH_SPIN_BUTTON(1,A);
 365         }
 366
 367 #undef SLIDER_ROW
 368 #undef ATTACH_SPIN_BUTTON
 369
 370         spinbutton_R->signal_activate().connect(sigc::mem_fun(*spinbutton_G,&Gtk::SpinButton::grab_focus));
 371         spinbutton_G->signal_activate().connect(sigc::mem_fun(*spinbutton_B,&Gtk::SpinButton::grab_focus));
 372         spinbutton_B->signal_activate().connect(sigc::mem_fun(*spinbutton_A,&Gtk::SpinButton::grab_focus));
 373         spinbutton_A->signal_activate().connect(sigc::mem_fun(*spinbutton_R,&Gtk::SpinButton::grab_focus));
 374
 375         R_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 376         G_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 377         B_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 378         A_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 379
 380         show_all_children();
 381
 382         set_value(color);
 383
 384         hold_signals=false;
 385 }
 386
 387 Widget_ColorEdit::~Widget_ColorEdit()
 388 {
 389 }
 390
 391 void
 392 Widget_ColorEdit::on_slider_moved(ColorSlider::Type type, float amount)
 393 {
 394         Color color(get_value_raw());
 395
 396         assert(color.is_valid());
 397         ColorSlider::adjust_color(type,color,amount);
 398         assert(color.is_valid());
 399
 400         // If a non-primary colorslider is adjusted,
 401         // we want to make sure that we clamp
 402         if(type>ColorSlider::TYPE_B && (color.get_r()<0 ||color.get_g()<0 ||color.get_b()<0))
 403                 clamp_=true;
 404
 405         /*
 406         if(type==ColorSlider::TYPE_R && color.get_r()<0)clamp_=false;
 407         if(type==ColorSlider::TYPE_G && color.get_g()<0)clamp_=false;
 408         if(type==ColorSlider::TYPE_B && color.get_b()<0)clamp_=false;
 409         */
 410         clamp_=false;
 411
 412         set_value(color);
 413         assert(color.is_valid());
 414 }
 415
 416 void
 417 Widget_ColorEdit::on_hex_edited()
 418 {
 419         Color color(get_value_raw());
 420         String s = hex_color->get_text();
 421         color.set_hex(s);
 422         set_value(color);
 423         signal_value_changed_();
 424 }
 425
 426 void
 427 Widget_ColorEdit::on_value_changed()
 428 {
 429         if(hold_signals)
 430                 return;
 431
 432         const Color color(get_value_raw());
 433         assert(color.is_valid());
 434         slider_R->set_color(color);
 435         slider_G->set_color(color);
 436         slider_B->set_color(color);
 437         slider_Y->set_color(color);
 438         slider_U->set_color(color);
 439         slider_V->set_color(color);
 440         slider_HUE->set_color(color);
 441         slider_SAT->set_color(color);
 442         slider_A->set_color(color);
 443         hex_color->set_text(color.get_hex());
 444         widget_color.set_value(color);
 445
 446         activate();
 447         signal_value_changed_();
 448 }
 449
 450 void
 451 Widget_ColorEdit::set_has_frame(bool x)
 452 {
 453         spinbutton_R->set_has_frame(x);
 454         spinbutton_G->set_has_frame(x);
 455         spinbutton_B->set_has_frame(x);
 456         spinbutton_A->set_has_frame(x);
 457         spinbutton_R->set_size_request(48,-1);
 458         spinbutton_G->set_size_request(48,-1);
 459         spinbutton_B->set_size_request(48,-1);
 460         spinbutton_A->set_size_request(48,-1);
 461 }
 462
 463 void
 464 Widget_ColorEdit::set_digits(int x)
 465 {
 466         spinbutton_R->set_digits(x);
 467         spinbutton_G->set_digits(x);
 468         spinbutton_B->set_digits(x);
 469         spinbutton_A->set_digits(x);
 470         spinbutton_R->set_size_request(48,-1);
 471         spinbutton_G->set_size_request(48,-1);
 472         spinbutton_B->set_size_request(48,-1);
 473         spinbutton_A->set_size_request(48,-1);
 474 }
 475
 476 void
 477 Widget_ColorEdit::set_value(const synfig::Color &data)
 478 {
 479         assert(data.is_valid());
 480         hold_signals=true;
 481         clamp_=false;
 482
 483         color=data;
 484
 485         if(use_colorspace_gamma())
 486         {
 487                 R_adjustment.set_value(gamma_in(color.get_r())*100);
 488                 G_adjustment.set_value(gamma_in(color.get_g())*100);
 489                 B_adjustment.set_value(gamma_in(color.get_b())*100);
 490         }
 491         else
 492         {
 493                 R_adjustment.set_value(color.get_r()*100);
 494                 G_adjustment.set_value(color.get_g()*100);
 495                 B_adjustment.set_value(color.get_b()*100);
 496         }
 497         A_adjustment.set_value(color.get_a()*100);
 498
 499         slider_R->set_color(color);
 500         slider_G->set_color(color);
 501         slider_B->set_color(color);
 502         slider_Y->set_color(color);
 503         slider_U->set_color(color);
 504         slider_V->set_color(color);
 505         slider_HUE->set_color(color);
 506         slider_SAT->set_color(color);
 507         slider_A->set_color(color);
 508         hex_color->set_text(color.get_hex());
 509         widget_color.set_value(color);
 510
 511         hold_signals=false;
 512 }
 513
 514 synfig::Color
 515 Widget_ColorEdit::get_value_raw()
 516 {
 517         Color color;
 518         if(use_colorspace_gamma())
 519         {
 520                 color.set_r(gamma_out(R_adjustment.get_value()/100.0f));
 521                 color.set_g(gamma_out(G_adjustment.get_value()/100.0f));
 522                 color.set_b(gamma_out(B_adjustment.get_value()/100.0f));
 523         }
 524         else
 525         {
 526                 color.set_r(R_adjustment.get_value()/100);
 527                 color.set_g(G_adjustment.get_value()/100);
 528                 color.set_b(B_adjustment.get_value()/100);
 529         }
 530         color.set_a(A_adjustment.get_value()/100);
 531         assert(color.is_valid());
 532
 533         return color;
 534 }
 535
 536 const synfig::Color &
 537 Widget_ColorEdit::get_value()
 538 {
 539         if(use_colorspace_gamma())
 540         {
 541                 color.set_r(gamma_out(R_adjustment.get_value()/100.0f));
 542                 color.set_g(gamma_out(G_adjustment.get_value()/100.0f));
 543                 color.set_b(gamma_out(B_adjustment.get_value()/100.0f));
 544                 assert(color.is_valid());
 545         }
 546         else
 547         {
 548                 color.set_r(R_adjustment.get_value()/100);
 549                 color.set_g(G_adjustment.get_value()/100);
 550                 color.set_b(B_adjustment.get_value()/100);
 551                 assert(color.is_valid());
 552         }
 553         color.set_a(A_adjustment.get_value()/100);
 554         assert(color.is_valid());
 555
 556         if(notebook->get_current_page()!=0)
 557                 color=color.clamped();
 558
 559         /*{
 560                 // Clamp out negative values
 561                 color.set_r(std::max(0.0f,(float)color.get_r()));
 562                 color.set_g(std::max(0.0f,(float)color.get_g()));
 563                 color.set_b(std::max(0.0f,(float)color.get_b()));
 564         }*/
 565
 566         return color;
 567 }