synfig-studio/tags/synfigstudio_0_61_07_rc2/src/gtkmm/dialog_setup.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file dialog_setup.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 "dialog_setup.h"
  34 #include "app.h"
  35 #include <gtkmm/scale.h>
  36 #include <gtkmm/table.h>
  37 #include <gtkmm/frame.h>
  38 #include <gtkmm/notebook.h>
  39 #include <gtkmm/spinbutton.h>
  40 #include "widget_enum.h"
  41
  42 #include <ETL/stringf>
  43 #include <ETL/misc>
  44 #endif
  45
  46 /* === U S I N G =========================================================== */
  47
  48 using namespace std;
  49 using namespace etl;
  50 using namespace synfig;
  51 using namespace studio;
  52
  53 /* === M A C R O S ========================================================= */
  54
  55 /* === G L O B A L S ======================================================= */
  56
  57 /* === P R O C E D U R E S ================================================= */
  58
  59 /* === M E T H O D S ======================================================= */
  60
  61 Dialog_Setup::Dialog_Setup():
  62         Dialog(_("Synfig Studio Setup"),false,true),
  63         adj_gamma_r(2.2,0.1,3.0,0.025,0.025,0.025),
  64         adj_gamma_g(2.2,0.1,3.0,0.025,0.025,0.025),
  65         adj_gamma_b(2.2,0.1,3.0,0.025,0.025,0.025),
  66         adj_recent_files(15,1,50,1,1,1),
  67         adj_undo_depth(100,10,5000,1,1,1),
  68         toggle_use_colorspace_gamma(_("Visually Linear Color Selection"))
  69 {
  70         // Setup the buttons
  71
  72         Gtk::Button *ok_button(manage(new class Gtk::Button(Gtk::StockID("gtk-ok"))));
  73         ok_button->show();
  74         add_action_widget(*ok_button,2);
  75         ok_button->signal_clicked().connect(sigc::mem_fun(*this, &Dialog_Setup::on_ok_pressed));
  76
  77         Gtk::Button *apply_button(manage(new class Gtk::Button(Gtk::StockID("gtk-apply"))));
  78         apply_button->show();
  79         add_action_widget(*apply_button,1);
  80         apply_button->signal_clicked().connect(sigc::mem_fun(*this, &Dialog_Setup::on_apply_pressed));
  81
  82         Gtk::Button *cancel_button(manage(new class Gtk::Button(Gtk::StockID("gtk-close"))));
  83         cancel_button->show();
  84         add_action_widget(*cancel_button,0);
  85         cancel_button->signal_clicked().connect(sigc::mem_fun(*this, &Dialog_Setup::hide));
  86
  87
  88         // Notebook
  89         Gtk::Notebook *notebook=manage(new class Gtk::Notebook());
  90         get_vbox()->pack_start(*notebook);
  91
  92
  93         // Gamma
  94         Gtk::Table *gamma_table=manage(new Gtk::Table(2,2,false));
  95         notebook->append_page(*gamma_table,_("Gamma"));
  96         //gamma_frame->add(*gamma_table);
  97
  98         gamma_table->attach(gamma_pattern, 0, 2, 0, 1, Gtk::EXPAND, Gtk::SHRINK|Gtk::FILL, 0, 0);
  99
 100         Gtk::HScale* scale_gamma_r(manage(new Gtk::HScale(adj_gamma_r)));
 101         gamma_table->attach(*manage(new Gtk::Label(_("Red"))), 0, 1, 1, 2, Gtk::SHRINK|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 102         gamma_table->attach(*scale_gamma_r, 1, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 103         adj_gamma_r.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Dialog_Setup::on_gamma_r_change));
 104
 105         Gtk::HScale* scale_gamma_g(manage(new Gtk::HScale(adj_gamma_g)));
 106         gamma_table->attach(*manage(new Gtk::Label(_("Green"))), 0, 1, 2, 3, Gtk::SHRINK|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 107         gamma_table->attach(*scale_gamma_g, 1, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 108         adj_gamma_g.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Dialog_Setup::on_gamma_g_change));
 109
 110         Gtk::HScale* scale_gamma_b(manage(new Gtk::HScale(adj_gamma_b)));
 111         gamma_table->attach(*manage(new Gtk::Label(_("Blue"))), 0, 1, 3, 4, Gtk::SHRINK|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 112         gamma_table->attach(*scale_gamma_b, 1, 2, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 113         adj_gamma_b.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Dialog_Setup::on_gamma_b_change));
 114
 115         gamma_table->attach(*manage(new Gtk::Label(_("Black Level"))), 0, 1, 4, 5, Gtk::SHRINK|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 116         gamma_table->attach(black_level_selector, 1, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 117         black_level_selector.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Dialog_Setup::on_black_level_change));
 118
 119         //gamma_table->attach(*manage(new Gtk::Label(_("Red-Blue Level"))), 0, 1, 5, 6, Gtk::SHRINK|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 120         //gamma_table->attach(red_blue_level_selector, 1, 2, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 121         //red_blue_level_selector.signal_value_changed().connect(sigc::mem_fun(*this,&studio::Dialog_Setup::on_red_blue_level_change));
 122
 123
 124         // Misc
 125         Gtk::Table *misc_table=manage(new Gtk::Table(2,2,false));
 126         notebook->append_page(*misc_table,_("Misc."));
 127
 128         // Misc - Timestamp
 129         timestamp_menu=manage(new class Gtk::Menu());
 130         misc_table->attach(*manage(new Gtk::Label(_("Timestamp"))), 0, 1, 0, 1, Gtk::SHRINK|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 131         misc_table->attach(timestamp_optionmenu, 1, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 132
 133 #define ADD_TIMESTAMP(desc,x)   \
 134         timestamp_menu->items().push_back(      \
 135                 Gtk::Menu_Helpers::MenuElem(    \
 136                         desc,   \
 137                         sigc::bind(     \
 138                                 sigc::mem_fun(  \
 139                                         *this,  \
 140                                         &studio::Dialog_Setup::set_time_format  \
 141                                 ),      \
 142                                 x       \
 143                         )       \
 144                 )       \
 145         );
 146         ADD_TIMESTAMP("HH:MM:SS.FF",Time::FORMAT_VIDEO);
 147         ADD_TIMESTAMP("(HHh MMm SSs) FFf",Time::FORMAT_NORMAL);
 148         ADD_TIMESTAMP("(HHhMMmSSs)FFf",Time::FORMAT_NORMAL|Time::FORMAT_NOSPACES);
 149         ADD_TIMESTAMP("HHh MMm SSs FFf",Time::FORMAT_NORMAL|Time::FORMAT_FULL);
 150         ADD_TIMESTAMP("HHhMMmSSsFFf",Time::FORMAT_NORMAL|Time::FORMAT_NOSPACES|Time::FORMAT_FULL);
 151
 152         timestamp_optionmenu.set_menu(*timestamp_menu);
 153
 154 #undef ADD_TIMESTAMP
 155
 156         {
 157                 ParamDesc param_desc;
 158                 param_desc
 159                         .set_hint("enum")
 160                         .add_enum_value(Distance::SYSTEM_UNITS,"u",_("Units"))
 161                         .add_enum_value(Distance::SYSTEM_PIXELS,"px",_("Pixels"))
 162                         .add_enum_value(Distance::SYSTEM_POINTS,"pt",_("Points"))
 163                         .add_enum_value(Distance::SYSTEM_INCHES,"in",_("Inches"))
 164                         .add_enum_value(Distance::SYSTEM_METERS,"m",_("Meters"))
 165                         .add_enum_value(Distance::SYSTEM_CENTIMETERS,"cm",_("Centimeters"))
 166                         .add_enum_value(Distance::SYSTEM_MILLIMETERS,"mm",_("Millimeters"));
 167
 168                 widget_enum=manage(new Widget_Enum());
 169                 widget_enum->set_param_desc(param_desc);
 170
 171                 misc_table->attach(*manage(new Gtk::Label(_("Unit System"))), 0, 1, 3, 4, Gtk::SHRINK|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 172                 misc_table->attach(*widget_enum, 1, 2, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 173         }
 174
 175         // Misc - recent files
 176         Gtk::SpinButton* recent_files_spinbutton(manage(new Gtk::SpinButton(adj_recent_files,1,0)));
 177         misc_table->attach(*manage(new Gtk::Label(_("Recent Files"))), 0, 1, 1, 2, Gtk::SHRINK|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 178         misc_table->attach(*recent_files_spinbutton, 1, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 179
 180         // Misc - use_colorspace_gamma
 181         misc_table->attach(toggle_use_colorspace_gamma, 0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::SHRINK|Gtk::FILL, 0, 0);
 182
 183         show_all_children();
 184 }
 185
 186 Dialog_Setup::~Dialog_Setup()
 187 {
 188 }
 189
 190 void
 191 Dialog_Setup::on_ok_pressed()
 192 {
 193     on_apply_pressed();
 194         hide();
 195 }
 196
 197 void
 198 Dialog_Setup::on_apply_pressed()
 199 {
 200         App::gamma.set_all(1.0/adj_gamma_r.get_value(),1.0/adj_gamma_g.get_value(),1.0/adj_gamma_b.get_value(),black_level_selector.get_value(),red_blue_level_selector.get_value());
 201
 202         App::set_max_recent_files((int)adj_recent_files.get_value());
 203
 204         // Set the time format
 205         App::set_time_format(get_time_format());
 206
 207         // Set the use_colorspace_gamma flag
 208         App::use_colorspace_gamma=toggle_use_colorspace_gamma.get_active();
 209
 210         App::distance_system=Distance::System(widget_enum->get_value());
 211
 212         App::save_settings();
 213 }
 214
 215 void
 216 Dialog_Setup::on_gamma_r_change()
 217 {
 218         gamma_pattern.set_gamma_r(1.0/adj_gamma_r.get_value());
 219         gamma_pattern.refresh();
 220         gamma_pattern.queue_draw();
 221 }
 222
 223 void
 224 Dialog_Setup::on_gamma_g_change()
 225 {
 226         gamma_pattern.set_gamma_g(1.0/adj_gamma_g.get_value());
 227         gamma_pattern.refresh();
 228         gamma_pattern.queue_draw();
 229 }
 230
 231 void
 232 Dialog_Setup::on_gamma_b_change()
 233 {
 234         gamma_pattern.set_gamma_b(1.0/adj_gamma_b.get_value());
 235         gamma_pattern.refresh();
 236         gamma_pattern.queue_draw();
 237 }
 238
 239 void
 240 Dialog_Setup::on_black_level_change()
 241 {
 242         gamma_pattern.set_black_level(black_level_selector.get_value());
 243         gamma_pattern.refresh();
 244         gamma_pattern.queue_draw();
 245 }
 246
 247 void
 248 Dialog_Setup::on_red_blue_level_change()
 249 {
 250         gamma_pattern.set_red_blue_level(red_blue_level_selector.get_value());
 251         gamma_pattern.refresh();
 252         gamma_pattern.queue_draw();
 253 }
 254
 255
 256 void
 257 Dialog_Setup::refresh()
 258 {
 259         // Refresh the temporary gamma; do this before adjusting the sliders,
 260         // or variables will be used before their initialisation.
 261         gamma_pattern.set_gamma_r(App::gamma.get_gamma_r());
 262         gamma_pattern.set_gamma_g(App::gamma.get_gamma_g());
 263         gamma_pattern.set_gamma_b(App::gamma.get_gamma_b());
 264         gamma_pattern.set_black_level(App::gamma.get_black_level());
 265         gamma_pattern.set_red_blue_level(App::gamma.get_red_blue_level());
 266
 267         adj_gamma_r.set_value(1.0/App::gamma.get_gamma_r());
 268         adj_gamma_g.set_value(1.0/App::gamma.get_gamma_g());
 269         adj_gamma_b.set_value(1.0/App::gamma.get_gamma_b());
 270         black_level_selector.set_value(App::gamma.get_black_level());
 271         red_blue_level_selector.set_value(App::gamma.get_red_blue_level());
 272
 273         gamma_pattern.refresh();
 274
 275         adj_recent_files.set_value(App::get_max_recent_files());
 276
 277         // Refresh the time format
 278         set_time_format(App::get_time_format());
 279
 280         widget_enum->set_value(App::distance_system);
 281
 282         // Refresh the status of the use_colorspace_gamma flag
 283         toggle_use_colorspace_gamma.set_active(App::use_colorspace_gamma);
 284 }
 285
 286 GammaPattern::GammaPattern():
 287         tile_w(80),
 288         tile_h(80)
 289 {
 290         set_size_request(tile_w*4,tile_h*3);
 291         signal_expose_event().connect(sigc::mem_fun(*this, &studio::GammaPattern::redraw));
 292 }
 293
 294 GammaPattern::~GammaPattern()
 295 {
 296 }
 297
 298 void
 299 GammaPattern::refresh()
 300 {
 301         black[0].set_rgb_p(
 302                 r_F32_to_F32(0.0),
 303                 g_F32_to_F32(0.0),
 304                 b_F32_to_F32(0.0)
 305         );
 306         white[0].set_rgb_p(
 307                 r_F32_to_F32(1.0),
 308                 g_F32_to_F32(1.0),
 309                 b_F32_to_F32(1.0)
 310         );
 311         gray50[0].set_rgb_p(
 312                 r_F32_to_F32(0.5),
 313                 g_F32_to_F32(0.5),
 314                 b_F32_to_F32(0.5)
 315         );
 316         gray25[0].set_rgb_p(
 317                 r_F32_to_F32(0.25),
 318                 g_F32_to_F32(0.25),
 319                 b_F32_to_F32(0.25)
 320         );
 321
 322         // Reds
 323         black[1].set_rgb(black[0].get_red(),0,0);
 324         gray25[1].set_rgb(gray25[0].get_red(),0,0);
 325         gray50[1].set_rgb(gray50[0].get_red(),0,0);
 326         white[1].set_rgb(white[0].get_red(),0,0);
 327
 328         // Greens
 329         black[2].set_rgb(0,black[0].get_green(),0);
 330         gray25[2].set_rgb(0,gray25[0].get_green(),0);
 331         gray50[2].set_rgb(0,gray50[0].get_green(),0);
 332         white[2].set_rgb(0,white[0].get_green(),0);
 333
 334         // blues
 335         black[3].set_rgb(0,0,black[0].get_blue());
 336         gray25[3].set_rgb(0,0,gray25[0].get_blue());
 337         gray50[3].set_rgb(0,0,gray50[0].get_blue());
 338         white[3].set_rgb(0,0,white[0].get_blue());
 339 }
 340
 341 bool
 342 GammaPattern::redraw(GdkEventExpose */*bleh*/)
 343 {
 344         static const char hlines[] = { 3, 0 };
 345
 346         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(get_window()));
 347
 348         int i;
 349         Gdk::Color trueblack("#000000");
 350
 351         // 50% Pattern
 352         for(i=0;i<4;i++)
 353         {
 354                 gc->set_rgb_fg_color(black[i]);
 355                 get_window()->draw_rectangle(gc, true, i*tile_w, 0, tile_w, tile_h);
 356
 357                 gc->set_stipple(Gdk::Bitmap::create(hlines,2,2));
 358                 gc->set_fill(Gdk::STIPPLED);
 359                 gc->set_rgb_fg_color(white[i]);
 360                 get_window()->draw_rectangle(gc, true, i*tile_w, 0, tile_w, tile_h);
 361
 362                 gc->set_fill(Gdk::SOLID);
 363                 gc->set_rgb_fg_color(gray50[i]);
 364
 365                 get_window()->draw_rectangle(gc, true, i*tile_w+tile_w/4, tile_h/4, tile_w-tile_w/2, tile_h-tile_h/2);
 366         }
 367
 368         // 25% Pattern
 369         for(i=0;i<4;i++)
 370         {
 371                 gc->set_rgb_fg_color(black[i]);
 372                 get_window()->draw_rectangle(gc, true, i*tile_w, tile_h, tile_w, tile_h);
 373
 374                 gc->set_stipple(Gdk::Bitmap::create(hlines,2,2));
 375                 gc->set_fill(Gdk::STIPPLED);
 376                 gc->set_rgb_fg_color(gray50[i]);
 377                 get_window()->draw_rectangle(gc, true, i*tile_w, tile_h, tile_w, tile_h);
 378
 379                 gc->set_fill(Gdk::SOLID);
 380                 gc->set_rgb_fg_color(gray25[i]);
 381
 382                 get_window()->draw_rectangle(gc, true, i*tile_w+tile_w/4, tile_h+tile_h/4, tile_w-tile_w/2, tile_h-tile_h/2);
 383         }
 384
 385         // Black-level Pattern
 386         gc->set_rgb_fg_color(trueblack);
 387         get_window()->draw_rectangle(gc, true, 0, tile_h*2, tile_w*4, tile_h);
 388         gc->set_fill(Gdk::SOLID);
 389         for(i=0;i<4;i++)
 390         {
 391                 gc->set_rgb_fg_color(black[i]);
 392
 393                 get_window()->draw_rectangle(gc, true, i*tile_w+tile_w/4, tile_h*2+tile_h/4, tile_w-tile_w/2, tile_h-tile_h/2);
 394         }
 395
 396         return true;
 397 }
 398
 399
 400 BlackLevelSelector::BlackLevelSelector()
 401 {
 402         set_size_request(-1,24);
 403         signal_expose_event().connect(sigc::mem_fun(*this, &studio::BlackLevelSelector::redraw));
 404
 405         add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 406         add_events(Gdk::BUTTON1_MOTION_MASK);
 407         add_events(Gdk::BUTTON1_MOTION_MASK);
 408 }
 409
 410 BlackLevelSelector::~BlackLevelSelector()
 411 {
 412 }
 413
 414 bool
 415 BlackLevelSelector::redraw(GdkEventExpose */*bleh*/)
 416 {
 417         const int w(get_width()),h(get_height());
 418
 419         Gdk::Color color;
 420
 421         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(get_window()));
 422
 423         int i;
 424
 425         // Draw the gradient
 426         for(i=0;i<w;i++)
 427         {
 428                 color.set_rgb(i*65536/w,i*65536/w,i*65536/w);
 429
 430                 gc->set_rgb_fg_color(color);
 431                 get_window()->draw_rectangle(gc, true, i, 0, 1, h);
 432         }
 433
 434         // Draw a frame
 435         gc->set_rgb_fg_color(Gdk::Color("#000000"));
 436         get_window()->draw_rectangle(gc, false, 0, 0, w-1, h-1);
 437
 438         // Draw the position of the current value
 439         i=(int)(level*w+0.5);
 440         gc->set_rgb_fg_color(Gdk::Color("#ff0000"));
 441         get_window()->draw_rectangle(gc, true, i, 1, 1, h-1);
 442
 443         // Print out the value
 444         Glib::RefPtr<Pango::Layout> layout(Pango::Layout::create(get_pango_context()));
 445         layout->set_text(etl::strprintf("%0.01f%%",level*100.0f));
 446         layout->set_alignment(Pango::ALIGN_CENTER);
 447         gc->set_rgb_fg_color(Gdk::Color("#a00000"));
 448         get_window()->draw_layout(gc, w/2, 4, layout);
 449
 450         return true;
 451 }
 452
 453
 454
 455 bool
 456 BlackLevelSelector::on_event(GdkEvent *event)
 457 {
 458         int x(round_to_int(event->button.x));
 459         //int y(round_to_int(event->button.y));
 460
 461     switch(event->type)
 462     {
 463         case GDK_MOTION_NOTIFY:
 464                 level=(float)x/(float)get_width();
 465                 if(level<0.0f)level=0.0f;
 466                 if(level>1.0f)level=1.0f;
 467                 signal_value_changed_();
 468                 queue_draw();
 469                 return true;
 470                 break;
 471         case GDK_BUTTON_PRESS:
 472         case GDK_BUTTON_RELEASE:
 473                 if(event->button.button==1)
 474                 {
 475                         level=(float)x/(float)get_width();
 476                         if(level<0.0f)level=0.0f;
 477                         if(level>1.0f)level=1.0f;
 478                         signal_value_changed_();
 479                         queue_draw();
 480                         return true;
 481                 }
 482                 break;
 483         default:
 484                 break;
 485         }
 486
 487         return false;
 488 }
 489
 490
 491 void
 492 Dialog_Setup::set_time_format(Time::Format x)
 493 {
 494         time_format=x;
 495         if(x<=Time::FORMAT_VIDEO)
 496                 timestamp_optionmenu.set_history(0);
 497         else
 498         {
 499                 if(x==(Time::FORMAT_NOSPACES|Time::FORMAT_FULL))
 500                         timestamp_optionmenu.set_history(4);
 501                 else if(x==(Time::FORMAT_FULL))
 502                         timestamp_optionmenu.set_history(3);
 503                 else if(x==(Time::FORMAT_NOSPACES))
 504                         timestamp_optionmenu.set_history(2);
 505                 else
 506                         timestamp_optionmenu.set_history(1);
 507         }
 508 }
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525 RedBlueLevelSelector::RedBlueLevelSelector()
 526 {
 527         set_size_request(-1,24);
 528         signal_expose_event().connect(sigc::mem_fun(*this, &studio::RedBlueLevelSelector::redraw));
 529
 530         add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
 531         add_events(Gdk::BUTTON1_MOTION_MASK);
 532         add_events(Gdk::BUTTON1_MOTION_MASK);
 533 }
 534
 535 RedBlueLevelSelector::~RedBlueLevelSelector()
 536 {
 537 }
 538
 539 bool
 540 RedBlueLevelSelector::redraw(GdkEventExpose */*bleh*/)
 541 {
 542         const int w(get_width()),h(get_height());
 543
 544         Gdk::Color color;
 545
 546         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(get_window()));
 547
 548         int i;
 549
 550         // Draw the gradient
 551         for(i=0;i<w;i++)
 552         {
 553                 float red_blue(((float(i)/float(w)+0.5f)-1.0f)/2.0f+1.0f);
 554                 float blue_red(2.0f-(red_blue));
 555                 if(red_blue>1.0f)red_blue=1.0f;
 556                 if(blue_red>1.0f)blue_red=1.0f;
 557
 558                 color.set_rgb(
 559                         round_to_int(min(red_blue,1.0f)*65535),
 560                         round_to_int(sqrt(min(red_blue,blue_red))*65535),
 561                         round_to_int(min(blue_red,1.0f)*65535)
 562                 );
 563
 564                 gc->set_rgb_fg_color(color);
 565                 get_window()->draw_rectangle(gc, true, i, 0, 1, h);
 566         }
 567
 568         // Draw a frame
 569         gc->set_rgb_fg_color(Gdk::Color("#000000"));
 570         get_window()->draw_rectangle(gc, false, 0, 0, w-1, h-1);
 571
 572         // Draw the position of the current value
 573         i=(int)(((level-1.0f)*2.0f+1.0f-0.5f)*w+0.5);
 574         gc->set_rgb_fg_color(Gdk::Color("#00ff00"));
 575         get_window()->draw_rectangle(gc, true, i, 1, 1, h-1);
 576
 577         // Print out the value
 578         Glib::RefPtr<Pango::Layout> layout(Pango::Layout::create(get_pango_context()));
 579         layout->set_text(etl::strprintf("%0.02f",level));
 580         layout->set_alignment(Pango::ALIGN_CENTER);
 581         gc->set_rgb_fg_color(Gdk::Color("#a00000"));
 582         get_window()->draw_layout(gc, w/2, 4, layout);
 583
 584         return true;
 585 }
 586
 587
 588
 589 bool
 590 RedBlueLevelSelector::on_event(GdkEvent *event)
 591 {
 592         int x(round_to_int(event->button.x));
 593         //int y(round_to_int(event->button.y));
 594
 595     switch(event->type)
 596     {
 597         case GDK_MOTION_NOTIFY:
 598                 level=(((float)(x)/(float)get_width()+0.5)-1.0f)/2.0f+1.0f;
 599                 if(level<0.5f)level=0.5f;
 600                 if(level>1.5f)level=1.5f;
 601                 signal_value_changed_();
 602                 queue_draw();
 603                 return true;
 604                 break;
 605         case GDK_BUTTON_PRESS:
 606         case GDK_BUTTON_RELEASE:
 607                 if(event->button.button==1)
 608                 {
 609                         level=(((float)(x)/(float)get_width()+0.5)-1.0f)/2.0f+1.0f;
 610                         if(level<0.5f)level=0.5f;
 611                         if(level>1.5f)level=1.5f;
 612                         signal_value_changed_();
 613                         queue_draw();
 614                         return true;
 615                 }
 616                 break;
 617         default:
 618                 break;
 619         }
 620
 621         return false;
 622 }