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