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         int i;
 157         for(i=width-1;i>=0;i--)
 158         {
 159                 color_func(color,gamma_out(float(i)/float(width)));
 160                 const Color c1(Color::blend(color,bg1,1.0).clamped());
 161                 const Color c2(Color::blend(color,bg2,1.0).clamped());
 162                 assert(c1.is_valid());
 163                 assert(c2.is_valid());
 164
 165                 if((i*2/height)&1)
 166                 {
 167                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c1));
 168                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y(), 1, height/2);
 169
 170                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c2));
 171                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y()+height/2, 1, height/2);
 172                 }
 173                 else
 174                 {
 175                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c2));
 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(c1));
 179                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y()+height/2, 1, height/2);
 180                 }
 181         }
 182
 183         get_style()->paint_arrow(
 184                 get_window(),
 185                 Gtk::STATE_SELECTED,
 186                 Gtk::SHADOW_OUT,
 187                 ca,
 188                 *this,
 189                 " ",
 190                 Gtk::ARROW_UP,
 191                 1,
 192                 int(amount*width)-height/2,
 193                 0,
 194                 height,
 195                 height
 196         );
 197
 198         gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 199         get_window()->draw_rectangle(gc, false, ca.get_x()+1, ca.get_y()+1, width-3, height-3);
 200         gc->set_rgb_fg_color(Gdk::Color("#000000"));
 201         get_window()->draw_rectangle(gc, false, ca.get_x(), ca.get_y(), width-1, height-1);
 202         return true;
 203 }
 204
 205 bool
 206 ColorSlider::on_event(GdkEvent *event)
 207 {
 208         float pos(event->button.x/(float)get_width());
 209         if(pos<0 || event->button.x<=0)pos=0;
 210         if(pos>1)pos=1;
 211
 212         if(use_colorspace_gamma() && (type<TYPE_U))
 213                 pos=gamma_out(pos);
 214         if(pos<0 || event->button.x<=0)pos=0;
 215         if(pos>1)pos=1;
 216
 217         switch(event->type)
 218         {
 219         case GDK_BUTTON_RELEASE:
 220                 signal_activated_();
 221                 return true;
 222
 223         case GDK_MOTION_NOTIFY:
 224 //              adjust_color(type,color_,pos);
 225                 signal_slider_moved_(type,pos);
 226                 queue_draw();
 227                 return true;
 228                 break;
 229         default:
 230                 break;
 231         }
 232         return false;
 233 }
 234
 235 /* === M E T H O D S ======================================================= */
 236
 237 Widget_ColorEdit::Widget_ColorEdit():
 238         R_adjustment(0,-10000000,10000000,1,10,0),
 239         G_adjustment(0,-10000000,10000000,1,10,0),
 240         B_adjustment(0,-10000000,10000000,1,10,0),
 241         A_adjustment(0,-10000000,10000000,1,10,0)
 242 {
 243         notebook=manage(new Gtk::Notebook);
 244
 245         Gtk::Table* rgb_table(manage(new Gtk::Table()));
 246         Gtk::Table* yuv_table(manage(new Gtk::Table()));
 247         Gtk::Table* main_table(this);
 248
 249         {
 250                 Gtk::VBox* rgb_box(manage(new Gtk::VBox()));
 251                 Gtk::VBox* yuv_box(manage(new Gtk::VBox()));
 252                 rgb_box->pack_start(*rgb_table,false,false);
 253                 yuv_box->pack_start(*yuv_table,false,false);
 254                 notebook->append_page(*rgb_box,_("RGB"));
 255                 notebook->append_page(*yuv_box,_("YUV"));
 256         }
 257
 258         color=Color(0,0,0,0);
 259
 260         set_size_request(150,-1);
 261         hold_signals=true;
 262
 263         Gtk::Label *label;
 264
 265         R_adjustment.set_lower(-10000000);
 266         G_adjustment.set_lower(-10000000);
 267         B_adjustment.set_lower(-10000000);
 268         A_adjustment.set_lower(-10000000);
 269
 270         clamp_=true;
 271
 272         Pango::AttrList attr_list;
 273         Pango::AttrInt pango_size(Pango::Attribute::create_attr_size(Pango::SCALE*7));
 274         pango_size.set_start_index(0);
 275         pango_size.set_end_index(64);
 276         attr_list.change(pango_size);
 277
 278         widget_color.set_size_request(-1,16);
 279         attach(widget_color, 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 280         attach(*notebook, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 281
 282 #define SLIDER_ROW(i,n,l) \
 283         slider_##n=manage(new ColorSlider(ColorSlider::TYPE_##n));      \
 284         slider_##n->signal_slider_moved().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_slider_moved)); \
 285         /*slider_##n->signal_activated().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::activated));*/ \
 286         slider_##n->signal_activated().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed)); \
 287         label=manage(new class Gtk::Label(l,0.0,0.5)); \
 288         label->set_use_markup(false); \
 289         label->set_use_underline(false); \
 290         label->set_attributes(attr_list); \
 291         table->attach(*label, 0, 1, 1+2*i, 2+2*i, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);  \
 292         table->attach(*slider_##n, 0, 1, 2+2*i, 3+2*i, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0)
 293
 294 #define ATTACH_SPIN_BUTTON(i,n) \
 295         spinbutton_##n=manage(new class Gtk::SpinButton(n##_adjustment,1,0)); \
 296         spinbutton_##n->set_update_policy(Gtk::UPDATE_ALWAYS); \
 297         spinbutton_##n->set_size_request(48,-1); \
 298         spinbutton_##n->show(); \
 299         table->attach(*spinbutton_##n, 1, 2, 1+2*i, 3+2*i, Gtk::SHRINK, Gtk::EXPAND, 2, 0)
 300
 301         {
 302                 Gtk::Table* table(rgb_table);
 303                 SLIDER_ROW(0,R,_("Red"));
 304                 ATTACH_SPIN_BUTTON(0,R);
 305                 SLIDER_ROW(1,G,_("Green"));
 306                 ATTACH_SPIN_BUTTON(1,G);
 307                 SLIDER_ROW(2,B,_("Blue"));
 308                 ATTACH_SPIN_BUTTON(2,B);
 309
 310                 hex_color_label = manage(new Gtk::Label(_("HTML code"), 0.0, 0.5));
 311                 hex_color_label->set_use_markup(false);
 312                 hex_color_label->set_use_underline(false);
 313                 hex_color_label->set_attributes(attr_list);
 314                 table->attach(*hex_color_label, 0, 1, 7, 8, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 315
 316                 hex_color = manage(new Gtk::Entry());
 317                 hex_color->set_width_chars(8);
 318                 hex_color->signal_activate().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_hex_edited));
 319                 table->attach(*hex_color, 0, 1, 8, 9, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 320         }
 321         {
 322                 Gtk::Table* table(yuv_table);
 323                 SLIDER_ROW(0,Y,_("Luma"));
 324                 SLIDER_ROW(1,HUE,_("Hue"));
 325                 SLIDER_ROW(2,SAT,_("Saturation"));
 326                 SLIDER_ROW(3,U,_("U"));
 327                 SLIDER_ROW(4,V,_("V"));
 328         }
 329         {
 330                 Gtk::Table* table(main_table);
 331                 SLIDER_ROW(1,A,_("Alpha"));
 332                 ATTACH_SPIN_BUTTON(1,A);
 333         }
 334
 335 #undef SLIDER_ROW
 336 #undef ATTACH_SPIN_BUTTON
 337
 338         spinbutton_R->signal_activate().connect(sigc::mem_fun(*spinbutton_G,&Gtk::SpinButton::grab_focus));
 339         spinbutton_G->signal_activate().connect(sigc::mem_fun(*spinbutton_B,&Gtk::SpinButton::grab_focus));
 340         spinbutton_B->signal_activate().connect(sigc::mem_fun(*spinbutton_A,&Gtk::SpinButton::grab_focus));
 341         spinbutton_A->signal_activate().connect(sigc::mem_fun(*spinbutton_R,&Gtk::SpinButton::grab_focus));
 342
 343         R_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 344         G_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 345         B_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 346         A_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 347
 348         show_all_children();
 349
 350         set_value(color);
 351
 352         hold_signals=false;
 353 }
 354
 355 Widget_ColorEdit::~Widget_ColorEdit()
 356 {
 357 }
 358
 359 void
 360 Widget_ColorEdit::on_slider_moved(ColorSlider::Type type, float amount)
 361 {
 362         Color color(get_value_raw());
 363
 364         assert(color.is_valid());
 365         ColorSlider::adjust_color(type,color,amount);
 366         assert(color.is_valid());
 367
 368         // If a non-primary colorslider is adjusted,
 369         // we want to make sure that we clamp
 370         if(type>ColorSlider::TYPE_B && (color.get_r()<0 ||color.get_g()<0 ||color.get_b()<0))
 371                 clamp_=true;
 372
 373         /*
 374         if(type==ColorSlider::TYPE_R && color.get_r()<0)clamp_=false;
 375         if(type==ColorSlider::TYPE_G && color.get_g()<0)clamp_=false;
 376         if(type==ColorSlider::TYPE_B && color.get_b()<0)clamp_=false;
 377         */
 378         clamp_=false;
 379
 380         set_value(color);
 381         assert(color.is_valid());
 382 }
 383
 384 void
 385 Widget_ColorEdit::on_hex_edited()
 386 {
 387         Color color(get_value_raw());
 388         String s = hex_color->get_text();
 389         color.set_hex(s);
 390         set_value(color);
 391         signal_value_changed_();
 392 }
 393
 394 void
 395 Widget_ColorEdit::on_value_changed()
 396 {
 397         if(hold_signals)
 398                 return;
 399
 400         const Color color(get_value_raw());
 401         assert(color.is_valid());
 402         slider_R->set_color(color);
 403         slider_G->set_color(color);
 404         slider_B->set_color(color);
 405         slider_Y->set_color(color);
 406         slider_U->set_color(color);
 407         slider_V->set_color(color);
 408         slider_HUE->set_color(color);
 409         slider_SAT->set_color(color);
 410         slider_A->set_color(color);
 411         hex_color->set_text(color.get_hex());
 412         widget_color.set_value(color);
 413
 414         activate();
 415         signal_value_changed_();
 416 }
 417
 418 void
 419 Widget_ColorEdit::set_has_frame(bool x)
 420 {
 421         spinbutton_R->set_has_frame(x);
 422         spinbutton_G->set_has_frame(x);
 423         spinbutton_B->set_has_frame(x);
 424         spinbutton_A->set_has_frame(x);
 425         spinbutton_R->set_size_request(48,-1);
 426         spinbutton_G->set_size_request(48,-1);
 427         spinbutton_B->set_size_request(48,-1);
 428         spinbutton_A->set_size_request(48,-1);
 429 }
 430
 431 void
 432 Widget_ColorEdit::set_digits(int x)
 433 {
 434         spinbutton_R->set_digits(x);
 435         spinbutton_G->set_digits(x);
 436         spinbutton_B->set_digits(x);
 437         spinbutton_A->set_digits(x);
 438         spinbutton_R->set_size_request(48,-1);
 439         spinbutton_G->set_size_request(48,-1);
 440         spinbutton_B->set_size_request(48,-1);
 441         spinbutton_A->set_size_request(48,-1);
 442 }
 443
 444 void
 445 Widget_ColorEdit::set_value(const synfig::Color &data)
 446 {
 447         assert(data.is_valid());
 448         hold_signals=true;
 449         clamp_=false;
 450
 451         color=data;
 452
 453         if(use_colorspace_gamma())
 454         {
 455                 R_adjustment.set_value(gamma_in(color.get_r())*100);
 456                 G_adjustment.set_value(gamma_in(color.get_g())*100);
 457                 B_adjustment.set_value(gamma_in(color.get_b())*100);
 458         }
 459         else
 460         {
 461                 R_adjustment.set_value(color.get_r()*100);
 462                 G_adjustment.set_value(color.get_g()*100);
 463                 B_adjustment.set_value(color.get_b()*100);
 464         }
 465         A_adjustment.set_value(color.get_a()*100);
 466
 467         slider_R->set_color(color);
 468         slider_G->set_color(color);
 469         slider_B->set_color(color);
 470         slider_Y->set_color(color);
 471         slider_U->set_color(color);
 472         slider_V->set_color(color);
 473         slider_HUE->set_color(color);
 474         slider_SAT->set_color(color);
 475         slider_A->set_color(color);
 476         hex_color->set_text(color.get_hex());
 477         widget_color.set_value(color);
 478
 479         hold_signals=false;
 480 }
 481
 482 synfig::Color
 483 Widget_ColorEdit::get_value_raw()
 484 {
 485         Color color;
 486         if(use_colorspace_gamma())
 487         {
 488                 color.set_r(gamma_out(R_adjustment.get_value()/100.0f));
 489                 color.set_g(gamma_out(G_adjustment.get_value()/100.0f));
 490                 color.set_b(gamma_out(B_adjustment.get_value()/100.0f));
 491         }
 492         else
 493         {
 494                 color.set_r(R_adjustment.get_value()/100);
 495                 color.set_g(G_adjustment.get_value()/100);
 496                 color.set_b(B_adjustment.get_value()/100);
 497         }
 498         color.set_a(A_adjustment.get_value()/100);
 499         assert(color.is_valid());
 500
 501         return color;
 502 }
 503
 504 const synfig::Color &
 505 Widget_ColorEdit::get_value()
 506 {
 507         if(use_colorspace_gamma())
 508         {
 509                 color.set_r(gamma_out(R_adjustment.get_value()/100.0f));
 510                 color.set_g(gamma_out(G_adjustment.get_value()/100.0f));
 511                 color.set_b(gamma_out(B_adjustment.get_value()/100.0f));
 512                 assert(color.is_valid());
 513         }
 514         else
 515         {
 516                 color.set_r(R_adjustment.get_value()/100);
 517                 color.set_g(G_adjustment.get_value()/100);
 518                 color.set_b(B_adjustment.get_value()/100);
 519                 assert(color.is_valid());
 520         }
 521         color.set_a(A_adjustment.get_value()/100);
 522         assert(color.is_valid());
 523
 524         if(notebook->get_current_page()!=0)
 525                 color=color.clamped();
 526
 527         /*{
 528                 // Clamp out negative values
 529                 color.set_r(std::max(0.0f,(float)color.get_r()));
 530                 color.set_g(std::max(0.0f,(float)color.get_g()));
 531                 color.set_b(std::max(0.0f,(float)color.get_b()));
 532         }*/
 533
 534         return color;
 535 }