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,
 160                                    (use_colorspace_gamma() && type<TYPE_U)
 161                                    ? gamma_out(float(i)/float(width))
 162                                    :              (float(i)/float(width)));
 163                 const Color c1(Color::blend(color,bg1,1.0).clamped());
 164                 const Color c2(Color::blend(color,bg2,1.0).clamped());
 165                 assert(c1.is_valid());
 166                 assert(c2.is_valid());
 167
 168                 if((i*2/height)&1)
 169                 {
 170                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c1));
 171                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y(), 1, height/2);
 172
 173                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c2));
 174                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y()+height/2, 1, height/2);
 175                 }
 176                 else
 177                 {
 178                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c2));
 179                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y(), 1, height/2);
 180
 181                         gc->set_rgb_fg_color(colorconv_synfig2gdk(c1));
 182                         get_window()->draw_rectangle(gc, true, ca.get_x()+i, ca.get_y()+height/2, 1, height/2);
 183                 }
 184         }
 185
 186         get_style()->paint_arrow(
 187                 get_window(),
 188                 Gtk::STATE_SELECTED,
 189                 Gtk::SHADOW_OUT,
 190                 ca,
 191                 *this,
 192                 " ",
 193                 Gtk::ARROW_UP,
 194                 1,
 195                 int(amount*width)-height/2,
 196                 0,
 197                 height,
 198                 height
 199         );
 200
 201         gc->set_rgb_fg_color(Gdk::Color("#ffffff"));
 202         get_window()->draw_rectangle(gc, false, ca.get_x()+1, ca.get_y()+1, width-3, height-3);
 203         gc->set_rgb_fg_color(Gdk::Color("#000000"));
 204         get_window()->draw_rectangle(gc, false, ca.get_x(), ca.get_y(), width-1, height-1);
 205         return true;
 206 }
 207
 208 bool
 209 ColorSlider::on_event(GdkEvent *event)
 210 {
 211         float pos(event->button.x/(float)get_width());
 212         if(pos<0 || event->button.x<=0)pos=0;
 213         if(pos>1)pos=1;
 214
 215         if(use_colorspace_gamma() && (type<TYPE_U))
 216                 pos=gamma_out(pos);
 217         if(pos<0 || event->button.x<=0)pos=0;
 218         if(pos>1)pos=1;
 219
 220         switch(event->type)
 221         {
 222         case GDK_BUTTON_RELEASE:
 223                 signal_activated_();
 224                 return true;
 225
 226         case GDK_MOTION_NOTIFY:
 227 //              adjust_color(type,color_,pos);
 228                 signal_slider_moved_(type,pos);
 229                 queue_draw();
 230                 return true;
 231                 break;
 232         default:
 233                 break;
 234         }
 235         return false;
 236 }
 237
 238 /* === M E T H O D S ======================================================= */
 239
 240 Widget_ColorEdit::Widget_ColorEdit():
 241         R_adjustment(0,-10000000,10000000,1,10,0),
 242         G_adjustment(0,-10000000,10000000,1,10,0),
 243         B_adjustment(0,-10000000,10000000,1,10,0),
 244         A_adjustment(0,-10000000,10000000,1,10,0)
 245 {
 246         notebook=manage(new Gtk::Notebook);
 247
 248         Gtk::Table* rgb_table(manage(new Gtk::Table()));
 249         Gtk::Table* yuv_table(manage(new Gtk::Table()));
 250         Gtk::Table* main_table(this);
 251
 252         {
 253                 Gtk::VBox* rgb_box(manage(new Gtk::VBox()));
 254                 Gtk::VBox* yuv_box(manage(new Gtk::VBox()));
 255                 rgb_box->pack_start(*rgb_table,false,false);
 256                 yuv_box->pack_start(*yuv_table,false,false);
 257                 notebook->append_page(*rgb_box,_("RGB"));
 258                 notebook->append_page(*yuv_box,_("YUV"));
 259         }
 260
 261         color=Color(0,0,0,0);
 262
 263         set_size_request(150,-1);
 264         hold_signals=true;
 265
 266         Gtk::Label *label;
 267
 268         R_adjustment.set_lower(-10000000);
 269         G_adjustment.set_lower(-10000000);
 270         B_adjustment.set_lower(-10000000);
 271         A_adjustment.set_lower(-10000000);
 272
 273         clamp_=true;
 274
 275         Pango::AttrList attr_list;
 276         Pango::AttrInt pango_size(Pango::Attribute::create_attr_size(Pango::SCALE*7));
 277         pango_size.set_start_index(0);
 278         pango_size.set_end_index(64);
 279         attr_list.change(pango_size);
 280
 281         widget_color.set_size_request(-1,16);
 282         attach(widget_color, 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 283         attach(*notebook, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 284
 285 #define SLIDER_ROW(i,n,l) \
 286         slider_##n=manage(new ColorSlider(ColorSlider::TYPE_##n));      \
 287         slider_##n->signal_slider_moved().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_slider_moved)); \
 288         /*slider_##n->signal_activated().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::activated));*/ \
 289         slider_##n->signal_activated().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed)); \
 290         label=manage(new class Gtk::Label(l,0.0,0.5)); \
 291         label->set_use_markup(false); \
 292         label->set_use_underline(false); \
 293         label->set_attributes(attr_list); \
 294         table->attach(*label, 0, 1, 1+2*i, 2+2*i, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);  \
 295         table->attach(*slider_##n, 0, 1, 2+2*i, 3+2*i, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0)
 296
 297 #define ATTACH_SPIN_BUTTON(i,n) \
 298         spinbutton_##n=manage(new class Gtk::SpinButton(n##_adjustment,1,0)); \
 299         spinbutton_##n->set_update_policy(Gtk::UPDATE_ALWAYS); \
 300         spinbutton_##n->set_size_request(48,-1); \
 301         spinbutton_##n->show(); \
 302         table->attach(*spinbutton_##n, 1, 2, 1+2*i, 3+2*i, Gtk::SHRINK, Gtk::EXPAND, 2, 0)
 303
 304         {
 305                 Gtk::Table* table(rgb_table);
 306                 SLIDER_ROW(0,R,_("Red"));
 307                 ATTACH_SPIN_BUTTON(0,R);
 308                 SLIDER_ROW(1,G,_("Green"));
 309                 ATTACH_SPIN_BUTTON(1,G);
 310                 SLIDER_ROW(2,B,_("Blue"));
 311                 ATTACH_SPIN_BUTTON(2,B);
 312
 313                 hex_color_label = manage(new Gtk::Label(_("HTML code"), 0.0, 0.5));
 314                 hex_color_label->set_use_markup(false);
 315                 hex_color_label->set_use_underline(false);
 316                 hex_color_label->set_attributes(attr_list);
 317                 table->attach(*hex_color_label, 0, 1, 7, 8, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 318
 319                 hex_color = manage(new Gtk::Entry());
 320                 hex_color->set_width_chars(8);
 321                 hex_color->signal_activate().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_hex_edited));
 322                 table->attach(*hex_color, 0, 1, 8, 9, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
 323         }
 324         {
 325                 Gtk::Table* table(yuv_table);
 326                 SLIDER_ROW(0,Y,_("Luma"));
 327                 SLIDER_ROW(1,HUE,_("Hue"));
 328                 SLIDER_ROW(2,SAT,_("Saturation"));
 329                 SLIDER_ROW(3,U,_("U"));
 330                 SLIDER_ROW(4,V,_("V"));
 331         }
 332         {
 333                 Gtk::Table* table(main_table);
 334                 SLIDER_ROW(1,A,_("Alpha"));
 335                 ATTACH_SPIN_BUTTON(1,A);
 336         }
 337
 338 #undef SLIDER_ROW
 339 #undef ATTACH_SPIN_BUTTON
 340
 341         spinbutton_R->signal_activate().connect(sigc::mem_fun(*spinbutton_G,&Gtk::SpinButton::grab_focus));
 342         spinbutton_G->signal_activate().connect(sigc::mem_fun(*spinbutton_B,&Gtk::SpinButton::grab_focus));
 343         spinbutton_B->signal_activate().connect(sigc::mem_fun(*spinbutton_A,&Gtk::SpinButton::grab_focus));
 344         spinbutton_A->signal_activate().connect(sigc::mem_fun(*spinbutton_R,&Gtk::SpinButton::grab_focus));
 345
 346         R_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 347         G_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 348         B_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 349         A_adjustment.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Widget_ColorEdit::on_value_changed));
 350
 351         show_all_children();
 352
 353         set_value(color);
 354
 355         hold_signals=false;
 356 }
 357
 358 Widget_ColorEdit::~Widget_ColorEdit()
 359 {
 360 }
 361
 362 void
 363 Widget_ColorEdit::on_slider_moved(ColorSlider::Type type, float amount)
 364 {
 365         Color color(get_value_raw());
 366
 367         assert(color.is_valid());
 368         ColorSlider::adjust_color(type,color,amount);
 369         assert(color.is_valid());
 370
 371         // If a non-primary colorslider is adjusted,
 372         // we want to make sure that we clamp
 373         if(type>ColorSlider::TYPE_B && (color.get_r()<0 ||color.get_g()<0 ||color.get_b()<0))
 374                 clamp_=true;
 375
 376         /*
 377         if(type==ColorSlider::TYPE_R && color.get_r()<0)clamp_=false;
 378         if(type==ColorSlider::TYPE_G && color.get_g()<0)clamp_=false;
 379         if(type==ColorSlider::TYPE_B && color.get_b()<0)clamp_=false;
 380         */
 381         clamp_=false;
 382
 383         set_value(color);
 384         assert(color.is_valid());
 385 }
 386
 387 void
 388 Widget_ColorEdit::on_hex_edited()
 389 {
 390         Color color(get_value_raw());
 391         String s = hex_color->get_text();
 392         color.set_hex(s);
 393         set_value(color);
 394         signal_value_changed_();
 395 }
 396
 397 void
 398 Widget_ColorEdit::on_value_changed()
 399 {
 400         if(hold_signals)
 401                 return;
 402
 403         const Color color(get_value_raw());
 404         assert(color.is_valid());
 405         slider_R->set_color(color);
 406         slider_G->set_color(color);
 407         slider_B->set_color(color);
 408         slider_Y->set_color(color);
 409         slider_U->set_color(color);
 410         slider_V->set_color(color);
 411         slider_HUE->set_color(color);
 412         slider_SAT->set_color(color);
 413         slider_A->set_color(color);
 414         hex_color->set_text(color.get_hex());
 415         widget_color.set_value(color);
 416
 417         activate();
 418         signal_value_changed_();
 419 }
 420
 421 void
 422 Widget_ColorEdit::set_has_frame(bool x)
 423 {
 424         spinbutton_R->set_has_frame(x);
 425         spinbutton_G->set_has_frame(x);
 426         spinbutton_B->set_has_frame(x);
 427         spinbutton_A->set_has_frame(x);
 428         spinbutton_R->set_size_request(48,-1);
 429         spinbutton_G->set_size_request(48,-1);
 430         spinbutton_B->set_size_request(48,-1);
 431         spinbutton_A->set_size_request(48,-1);
 432 }
 433
 434 void
 435 Widget_ColorEdit::set_digits(int x)
 436 {
 437         spinbutton_R->set_digits(x);
 438         spinbutton_G->set_digits(x);
 439         spinbutton_B->set_digits(x);
 440         spinbutton_A->set_digits(x);
 441         spinbutton_R->set_size_request(48,-1);
 442         spinbutton_G->set_size_request(48,-1);
 443         spinbutton_B->set_size_request(48,-1);
 444         spinbutton_A->set_size_request(48,-1);
 445 }
 446
 447 void
 448 Widget_ColorEdit::set_value(const synfig::Color &data)
 449 {
 450         assert(data.is_valid());
 451         hold_signals=true;
 452         clamp_=false;
 453
 454         color=data;
 455
 456         if(use_colorspace_gamma())
 457         {
 458                 R_adjustment.set_value(gamma_in(color.get_r())*100);
 459                 G_adjustment.set_value(gamma_in(color.get_g())*100);
 460                 B_adjustment.set_value(gamma_in(color.get_b())*100);
 461         }
 462         else
 463         {
 464                 R_adjustment.set_value(color.get_r()*100);
 465                 G_adjustment.set_value(color.get_g()*100);
 466                 B_adjustment.set_value(color.get_b()*100);
 467         }
 468         A_adjustment.set_value(color.get_a()*100);
 469
 470         slider_R->set_color(color);
 471         slider_G->set_color(color);
 472         slider_B->set_color(color);
 473         slider_Y->set_color(color);
 474         slider_U->set_color(color);
 475         slider_V->set_color(color);
 476         slider_HUE->set_color(color);
 477         slider_SAT->set_color(color);
 478         slider_A->set_color(color);
 479         hex_color->set_text(color.get_hex());
 480         widget_color.set_value(color);
 481
 482         hold_signals=false;
 483 }
 484
 485 synfig::Color
 486 Widget_ColorEdit::get_value_raw()
 487 {
 488         Color color;
 489         if(use_colorspace_gamma())
 490         {
 491                 color.set_r(gamma_out(R_adjustment.get_value()/100.0f));
 492                 color.set_g(gamma_out(G_adjustment.get_value()/100.0f));
 493                 color.set_b(gamma_out(B_adjustment.get_value()/100.0f));
 494         }
 495         else
 496         {
 497                 color.set_r(R_adjustment.get_value()/100);
 498                 color.set_g(G_adjustment.get_value()/100);
 499                 color.set_b(B_adjustment.get_value()/100);
 500         }
 501         color.set_a(A_adjustment.get_value()/100);
 502         assert(color.is_valid());
 503
 504         return color;
 505 }
 506
 507 const synfig::Color &
 508 Widget_ColorEdit::get_value()
 509 {
 510         if(use_colorspace_gamma())
 511         {
 512                 color.set_r(gamma_out(R_adjustment.get_value()/100.0f));
 513                 color.set_g(gamma_out(G_adjustment.get_value()/100.0f));
 514                 color.set_b(gamma_out(B_adjustment.get_value()/100.0f));
 515                 assert(color.is_valid());
 516         }
 517         else
 518         {
 519                 color.set_r(R_adjustment.get_value()/100);
 520                 color.set_g(G_adjustment.get_value()/100);
 521                 color.set_b(B_adjustment.get_value()/100);
 522                 assert(color.is_valid());
 523         }
 524         color.set_a(A_adjustment.get_value()/100);
 525         assert(color.is_valid());
 526
 527         if(notebook->get_current_page()!=0)
 528                 color=color.clamped();
 529
 530         /*{
 531                 // Clamp out negative values
 532                 color.set_r(std::max(0.0f,(float)color.get_r()));
 533                 color.set_g(std::max(0.0f,(float)color.get_g()));
 534                 color.set_b(std::max(0.0f,(float)color.get_b()));
 535         }*/
 536
 537         return color;
 538 }