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 #define SPINBUTTON_WIDTH 100
  57
  58 /* === G L O B A L S ======================================================= */
  59
  60 /* === P R O C E D U R E S ================================================= */
  61
  62 /* === C L A S S E S ======================================================= */
  63
  64 ColorSlider::ColorSlider(const ColorSlider::Type &x):
  65         type(x)
  66 {
  67         signal_expose_event().connect(sigc::mem_fun(*this, &ColorSlider::redraw));
  68         set_size_request(-1,12);
  69         add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
  70         add_events(Gdk::BUTTON1_MOTION_MASK);
  71 }
  72
  73 void
  74 ColorSlider::set_type(Type x) { type=x; queue_draw(); }
  75
  76 void
  77 ColorSlider::set_color(synfig::Color x) { color_=x; queue_draw(); }
  78
  79 void
  80 ColorSlider::slider_color_TYPE_R(synfig::Color &color, float amount) { color.set_r(amount); }
  81 void
  82 ColorSlider::slider_color_TYPE_G(synfig::Color &color, float amount) { color.set_g(amount); }
  83 void
  84 ColorSlider::slider_color_TYPE_B(synfig::Color &color, float amount) { color.set_b(amount); }
  85 void
  86 ColorSlider::slider_color_TYPE_Y(synfig::Color &color, float amount) { color.set_y(amount); }
  87 void
  88 ColorSlider::slider_color_TYPE_U(synfig::Color &color, float amount) { color.set_u(amount-0.5f); }
  89 void
  90 ColorSlider::slider_color_TYPE_V(synfig::Color &color, float amount) { color.set_v(amount-0.5f); }
  91 void
  92 ColorSlider::slider_color_TYPE_HUE(synfig::Color &color, float amount) { color.set_uv_angle(Angle::rot(amount)); }
  93 void
  94 ColorSlider::slider_color_TYPE_SAT(synfig::Color &color, float amount) { color.set_s(amount*0.5f); }
  95 void
  96 ColorSlider::slider_color_TYPE_A(synfig::Color &color, float amount) { color.set_a(amount); }
  97
  98 void
  99 ColorSlider::adjust_color(Type type, synfig::Color &color, float amount)
 100 {
 101         static const slider_color_func jump_table[int(TYPE_END)] =
 102         {
 103                 slider_color_TYPE_R,
 104                 slider_color_TYPE_G,
 105                 slider_color_TYPE_B,
 106                 slider_color_TYPE_Y,
 107                 slider_color_TYPE_U,
 108                 slider_color_TYPE_V,
 109                 slider_color_TYPE_HUE,
 110                 slider_color_TYPE_SAT,
 111                 slider_color_TYPE_A,
 112         };
 113         jump_table[int(type)](color,amount);
 114 }
 115
 116 bool
 117 ColorSlider::redraw(GdkEventExpose */*bleh*/)
 118 {
 119         Color color(color_);
 120
 121         static const slider_color_func jump_table[int(TYPE_END)] =
 122         {
 123                 slider_color_TYPE_R,
 124                 slider_color_TYPE_G,
 125                 slider_color_TYPE_B,
 126                 slider_color_TYPE_Y,
 127                 slider_color_TYPE_U,
 128                 slider_color_TYPE_V,
 129                 slider_color_TYPE_HUE,
 130                 slider_color_TYPE_SAT,
 131                 slider_color_TYPE_A,
 132         };
 133
 134         slider_color_func color_func(jump_table[int(type)]);
 135
 136         float amount;
 137         switch(type)
 138         {
 139                 case TYPE_R: amount=color.get_r(); break;
 140                 case TYPE_G: amount=color.get_g(); break;
 141                 case TYPE_B: amount=color.get_b(); break;
 142                 case TYPE_Y: amount=color.get_y(); break;
 143                 case TYPE_U: amount=color.get_u()+0.5; break;
 144                 case TYPE_V: amount=color.get_v()+0.5; break;
 145                 case TYPE_HUE: amount=Angle::rot(color.get_uv_angle()).get(); amount-=floor(amount); break;
 146                 case TYPE_SAT: amount=color.get_s()*2.0; break;
 147                 case TYPE_A: amount=color.get_a(); break;
 148                 default: amount=0; break;
 149         }
 150         if(use_colorspace_gamma() && (type<TYPE_U))
 151                 amount=gamma_in(amount);
 152
 153         const int height(get_height());
 154         const int width(get_width());
 155
 156         Gdk::Rectangle ca(0,0,width,height);
 157
 158         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(get_window()));
 159         const Color bg1(0.75, 0.75, 0.75);
 160         const Color bg2(0.5, 0.5, 0.5);
 161         int i;
 162         for(i=width-1;i>=0;i--)
 163         {
 164                 color_func(color,
 165                                    (use_colorspace_gamma() && type<TYPE_U)
 166                                    ? gamma_out(float(i)/float(width))
 167                                    :              (float(i)/float(width)));
 168                 const Color c1(Color::blend(color,bg1,1.0).clamped());
 169                 const Color c2(Color::blend(color,bg2,1.0).clamped());
 170                 assert(c1.is_valid());
 171                 assert(c2.is_valid());
 172
 173                 if((i*2/height)&1)
 174                 {
 175                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c1));
 176                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y(), 1, height/2);
 177
 178                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c2));
 179                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y()+height/2, 1, height/2);
 180                 }
 181                 else
 182                 {
 183                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c2));
 184                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y(), 1, height/2);
 185
 186                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c1));
 187                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y()+height/2, 1, height/2);
 188                 }
 189         }
 190
 191         get_style()->paint_arrow(
 192                 get_window(),
 193                 Gtk::STATE_SELECTED,
 194                 Gtk::SHADOW_OUT,
 195                 ca,
 196                 *this,
 197                 " ",
 198                 Gtk::ARROW_UP,
 199                 1,
 200                 int(amount*width)-height/2,
 201                 0,
 202                 height,
 203                 height
 204         );
 205
 206         gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 207         get_window()->draw_rectangle(gc, false, ca.get_x()+1, ca.get_y()+1, width-3, height-3);
 208         gc->set_rgb_fg_color(Gdk::Color("#000000"));
 209         get_window()->draw_rectangle(gc, false, ca.get_x(), ca.get_y(), width-1, height-1);
 210         return true;
 211 }
 212
 213 bool
 214 ColorSlider::on_event(GdkEvent *event)
 215 {
 216         float pos(event->button.x/(float)get_width());
 217         if(pos<0 || event->button.x<=0)pos=0;
 218         if(pos>1)pos=1;
 219
 220         if(use_colorspace_gamma() && (type<TYPE_U))
 221                 pos=gamma_out(pos);
 222         if(pos<0 || event->button.x<=0)pos=0;
 223         if(pos>1)pos=1;
 224
 225         switch(event->type)
 226         {
 227         case GDK_BUTTON_RELEASE:
 228                 signal_activated_();
 229                 return true;
 230
 231         case GDK_BUTTON_PRESS:
 232         case GDK_MOTION_NOTIFY:
 233 //              adjust_color(type,color_,pos);
 234                 signal_slider_moved_(type,pos);
 235                 queue_draw();
 236                 return true;
 237                 break;
 238         default:
 239                 break;
 240         }
 241         return false;
 242 }
 243
 244 /* === M E T H O D S ======================================================= */
 245
 246 Widget_ColorEdit::Widget_ColorEdit():
 247         R_adjustment(0,-10000000,10000000,1,10,0),
 248         G_adjustment(0,-10000000,10000000,1,10,0),
 249         B_adjustment(0,-10000000,10000000,1,10,0),
 250         A_adjustment(0,-10000000,10000000,1,10,0)
 251 {
 252         notebook=manage(new Gtk::Notebook);
 253
 254         Gtk::Table* rgb_table(manage(new Gtk::Table()));
 255         Gtk::Table* yuv_table(manage(new Gtk::Table()));
 256         Gtk::Table* main_table(this);
 257
 258         {
 259                 Gtk::VBox* rgb_box(manage(new Gtk::VBox()));
 260                 Gtk::VBox* yuv_box(manage(new Gtk::VBox()));
 261                 rgb_box->pack_start(*rgb_table,false,false);
 262                 yuv_box->pack_start(*yuv_table,false,false);
 263                 notebook->append_page(*rgb_box,_("RGB"));
 264                 notebook->append_page(*yuv_box,_("YUV"));
 265         }
 266
 267         color=Color(0,0,0,0);
 268
 269         set_size_request(200,-1);
 270         hold_signals=true;
 271
 272         Gtk::Label *label;
 273
 274         R_adjustment.set_lower(-10000000);
 275         G_adjustment.set_lower(-10000000);
 276         B_adjustment.set_lower(-10000000);
 277         A_adjustment.set_lower(-10000000);
 278
 279         clamp_=true;
 280
 281         Pango::AttrList attr_list;
 282         Pango::AttrInt pango_size(Pango::Attribute::create_attr_size(Pango::SCALE*7));
 283         pango_size.set_start_index(0);
 284         pango_size.set_end_index(64);
 285         attr_list.change(pango_size);
 286
 287         widget_color.set_size_request(-1,16);
 288         attach(widget_color, 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 289         attach(*notebook, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 290
 291 #define SLIDER_ROW(i,n,l) \
 292         slider_##n=manage(new ColorSlider(ColorSlider::TYPE_##n));      \
 293         slider_##n->signal_slider_moved().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_slider_moved)); \
 294         /*slider_##n->signal_activated().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::activated));*/ \
 295         slider_##n->signal_activated().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed)); \
 296         label=manage(new class Gtk::Label(l,0.0,0.5)); \
 297         label->set_use_markup(false); \
 298         label->set_use_underline(false); \
 299         label->set_attributes(attr_list); \
 300         table->attach(*label, 0, 1, 1+2*i, 2+2*i, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);  \
 301         table->attach(*slider_##n, 0, 1, 2+2*i, 3+2*i, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0)
 302
 303 #define ATTACH_SPIN_BUTTON(i,n) \
 304         spinbutton_##n=manage(new class Gtk::SpinButton(n##_adjustment,1,0)); \
 305         spinbutton_##n->set_update_policy(Gtk::UPDATE_ALWAYS); \
 306         spinbutton_##n->set_size_request(SPINBUTTON_WIDTH,-1); \
 307         spinbutton_##n->show(); \
 308         table->attach(*spinbutton_##n, 1, 2, 1+2*i, 3+2*i, Gtk::SHRINK, Gtk::EXPAND, 2, 0)
 309
 310         {
 311                 Gtk::Table* table(rgb_table);
 312                 SLIDER_ROW(0,R,_("Red"));
 313                 ATTACH_SPIN_BUTTON(0,R);
 314                 SLIDER_ROW(1,G,_("Green"));
 315                 ATTACH_SPIN_BUTTON(1,G);
 316                 SLIDER_ROW(2,B,_("Blue"));
 317                 ATTACH_SPIN_BUTTON(2,B);
 318
 319                 hex_color_label = manage(new Gtk::Label(_("HTML code"), 0.0, 0.5));
 320                 hex_color_label->set_use_markup(false);
 321                 hex_color_label->set_use_underline(false);
 322                 hex_color_label->set_attributes(attr_list);
 323                 table->attach(*hex_color_label, 0, 1, 7, 8, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 324
 325                 hex_color = manage(new Gtk::Entry());
 326                 hex_color->set_width_chars(8);
 327                 hex_color->signal_activate().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_hex_edited));
 328                 table->attach(*hex_color, 0, 1, 8, 9, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 329         }
 330         {
 331                 Gtk::Table* table(yuv_table);
 332                 SLIDER_ROW(0,Y,_("Luma"));
 333                 SLIDER_ROW(1,HUE,_("Hue"));
 334                 SLIDER_ROW(2,SAT,_("Saturation"));
 335                 SLIDER_ROW(3,U,_("U"));
 336                 SLIDER_ROW(4,V,_("V"));
 337         }
 338         {
 339                 Gtk::Table* table(main_table);
 340                 SLIDER_ROW(1,A,_("Alpha"));
 341                 ATTACH_SPIN_BUTTON(1,A);
 342         }
 343
 344 #undef SLIDER_ROW
 345 #undef ATTACH_SPIN_BUTTON
 346
 347         spinbutton_R->signal_activate().connect(sigc::mem_fun(*spinbutton_G,&Gtk::SpinButton::grab_focus));
 348         spinbutton_G->signal_activate().connect(sigc::mem_fun(*spinbutton_B,&Gtk::SpinButton::grab_focus));
 349         spinbutton_B->signal_activate().connect(sigc::mem_fun(*spinbutton_A,&Gtk::SpinButton::grab_focus));
 350         spinbutton_A->signal_activate().connect(sigc::mem_fun(*spinbutton_R,&Gtk::SpinButton::grab_focus));
 351
 352         R_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 353         G_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 354         B_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 355         A_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 356
 357         show_all_children();
 358
 359         set_digits(1);
 360         set_value(color);
 361
 362         hold_signals=false;
 363 }
 364
 365 Widget_ColorEdit::~Widget_ColorEdit()
 366 {
 367 }
 368
 369 void
 370 Widget_ColorEdit::on_slider_moved(ColorSlider::Type type, float amount)
 371 {
 372         Color color(get_value_raw());
 373
 374         assert(color.is_valid());
 375         ColorSlider::adjust_color(type,color,amount);
 376         assert(color.is_valid());
 377
 378         // If a non-primary colorslider is adjusted,
 379         // we want to make sure that we clamp
 380         if(type>ColorSlider::TYPE_B && (color.get_r()<0 ||color.get_g()<0 ||color.get_b()<0))
 381                 clamp_=true;
 382
 383         /*
 384         if(type==ColorSlider::TYPE_R && color.get_r()<0)clamp_=false;
 385         if(type==ColorSlider::TYPE_G && color.get_g()<0)clamp_=false;
 386         if(type==ColorSlider::TYPE_B && color.get_b()<0)clamp_=false;
 387         */
 388         clamp_=false;
 389
 390         set_value(color);
 391         assert(color.is_valid());
 392 }
 393
 394 void
 395 Widget_ColorEdit::on_hex_edited()
 396 {
 397         Color color(get_value_raw());
 398         String s = hex_color->get_text();
 399         color.set_hex(s);
 400         set_value(color);
 401         signal_value_changed_();
 402 }
 403
 404 void
 405 Widget_ColorEdit::on_value_changed()
 406 {
 407         if(hold_signals)
 408                 return;
 409
 410         const Color color(get_value_raw());
 411         assert(color.is_valid());
 412         slider_R->set_color(color);
 413         slider_G->set_color(color);
 414         slider_B->set_color(color);
 415         slider_Y->set_color(color);
 416         slider_U->set_color(color);
 417         slider_V->set_color(color);
 418         slider_HUE->set_color(color);
 419         slider_SAT->set_color(color);
 420         slider_A->set_color(color);
 421         hex_color->set_text(color.get_hex());
 422         widget_color.set_value(color);
 423
 424         activate();
 425         signal_value_changed_();
 426 }
 427
 428 void
 429 Widget_ColorEdit::set_has_frame(bool x)
 430 {
 431         spinbutton_R->set_has_frame(x);
 432         spinbutton_G->set_has_frame(x);
 433         spinbutton_B->set_has_frame(x);
 434         spinbutton_A->set_has_frame(x);
 435         spinbutton_R->set_size_request(SPINBUTTON_WIDTH,-1);
 436         spinbutton_G->set_size_request(SPINBUTTON_WIDTH,-1);
 437         spinbutton_B->set_size_request(SPINBUTTON_WIDTH,-1);
 438         spinbutton_A->set_size_request(SPINBUTTON_WIDTH,-1);
 439 }
 440
 441 void
 442 Widget_ColorEdit::set_digits(int x)
 443 {
 444         spinbutton_R->set_digits(x);
 445         spinbutton_G->set_digits(x);
 446         spinbutton_B->set_digits(x);
 447         spinbutton_A->set_digits(x);
 448         spinbutton_R->set_size_request(SPINBUTTON_WIDTH,-1);
 449         spinbutton_G->set_size_request(SPINBUTTON_WIDTH,-1);
 450         spinbutton_B->set_size_request(SPINBUTTON_WIDTH,-1);
 451         spinbutton_A->set_size_request(SPINBUTTON_WIDTH,-1);
 452 }
 453
 454 void
 455 Widget_ColorEdit::set_value(const synfig::Color &data)
 456 {
 457         assert(data.is_valid());
 458         hold_signals=true;
 459         clamp_=false;
 460
 461         color=data;
 462
 463         if(use_colorspace_gamma())
 464         {
 465                 R_adjustment.set_value(gamma_in(color.get_r())*100);
 466                 G_adjustment.set_value(gamma_in(color.get_g())*100);
 467                 B_adjustment.set_value(gamma_in(color.get_b())*100);
 468         }
 469         else
 470         {
 471                 R_adjustment.set_value(color.get_r()*100);
 472                 G_adjustment.set_value(color.get_g()*100);
 473                 B_adjustment.set_value(color.get_b()*100);
 474         }
 475         A_adjustment.set_value(color.get_a()*100);
 476
 477         slider_R->set_color(color);
 478         slider_G->set_color(color);
 479         slider_B->set_color(color);
 480         slider_Y->set_color(color);
 481         slider_U->set_color(color);
 482         slider_V->set_color(color);
 483         slider_HUE->set_color(color);
 484         slider_SAT->set_color(color);
 485         slider_A->set_color(color);
 486         hex_color->set_text(color.get_hex());
 487         widget_color.set_value(color);
 488
 489         hold_signals=false;
 490 }
 491
 492 synfig::Color
 493 Widget_ColorEdit::get_value_raw()
 494 {
 495         Color color;
 496         if(use_colorspace_gamma())
 497         {
 498                 color.set_r(gamma_out(R_adjustment.get_value()/100.0f));
 499                 color.set_g(gamma_out(G_adjustment.get_value()/100.0f));
 500                 color.set_b(gamma_out(B_adjustment.get_value()/100.0f));
 501         }
 502         else
 503         {
 504                 color.set_r(R_adjustment.get_value()/100);
 505                 color.set_g(G_adjustment.get_value()/100);
 506                 color.set_b(B_adjustment.get_value()/100);
 507         }
 508         color.set_a(A_adjustment.get_value()/100);
 509         assert(color.is_valid());
 510
 511         return color;
 512 }
 513
 514 const synfig::Color &
 515 Widget_ColorEdit::get_value()
 516 {
 517         if(use_colorspace_gamma())
 518         {
 519                 color.set_r(gamma_out(R_adjustment.get_value()/100.0f));
 520                 color.set_g(gamma_out(G_adjustment.get_value()/100.0f));
 521                 color.set_b(gamma_out(B_adjustment.get_value()/100.0f));
 522                 assert(color.is_valid());
 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                 assert(color.is_valid());
 530         }
 531         color.set_a(A_adjustment.get_value()/100);
 532         assert(color.is_valid());
 533
 534         if(notebook->get_current_page()!=0)
 535                 color=color.clamped();
 536
 537         /*{
 538                 // Clamp out negative values
 539                 color.set_r(std::max(0.0f,(float)color.get_r()));
 540                 color.set_g(std::max(0.0f,(float)color.get_g()));
 541                 color.set_b(std::max(0.0f,(float)color.get_b()));
 542         }*/
 543
 544         return color;
 545 }