src/gui_controls.cpp

   1 /* Calf DSP Library
   2  * GUI widget object implementations.
   3  * Copyright (C) 2007-2009 Krzysztof Foltman
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this program; if not, write to the
  17  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  * Boston, MA  02110-1301  USA
  19  */
  20
  21 #include <config.h>
  22 #include <assert.h>
  23 #include <sys/time.h>
  24 #include <calf/ctl_curve.h>
  25 #include <calf/ctl_keyboard.h>
  26 #include <calf/ctl_knob.h>
  27 #include <calf/ctl_led.h>
  28 #include <calf/ctl_tube.h>
  29 #include <calf/ctl_vumeter.h>
  30 #include <calf/custom_ctl.h>
  31 #include <calf/giface.h>
  32 #include <calf/gui.h>
  33 #include <calf/gui_controls.h>
  34 #include <calf/utils.h>
  35 #include <gdk/gdk.h>
  36 #include <gdk/gdkkeysyms.h>
  37 #include <calf/ctl_linegraph.h>
  38 #include <iostream>
  39 #include <vector>
  40 #include <algorithm>
  41
  42 using namespace calf_plugins;
  43 using namespace calf_utils;
  44 using namespace std;
  45
  46 #define SANITIZE(value) (std::abs(value) < small_value<float>()) ? 0.f : value
  47
  48 /******************************** control/container base class **********************/
  49
  50 void control_base::require_attribute(const char *name)
  51 {
  52     if (attribs.count(name) == 0) {
  53         g_error("Missing attribute '%s' in control '%s'", name, control_name.c_str());
  54     }
  55 }
  56
  57 void control_base::require_int_attribute(const char *name)
  58 {
  59     require_attribute(name);
  60     if (attribs[name].empty() || attribs[name].find_first_not_of("0123456789") != string::npos) {
  61         g_error("Wrong data type on attribute '%s' in control '%s' (required integer)", name, control_name.c_str());
  62     }
  63 }
  64
  65 int control_base::get_int(const char *name, int def_value)
  66 {
  67     if (attribs.count(name) == 0)
  68         return def_value;
  69     const std::string &v = attribs[name];
  70     if (v.empty() || v.find_first_not_of("-+0123456789") != string::npos)
  71         return def_value;
  72     return atoi(v.c_str());
  73 }
  74
  75 float control_base::get_float(const char *name, float def_value)
  76 {
  77     if (attribs.count(name) == 0)
  78         return def_value;
  79     const std::string &v = attribs[name];
  80     if (v.empty() || v.find_first_not_of("-+0123456789.") != string::npos)
  81         return def_value;
  82     stringstream ss(v);
  83     float value;
  84     ss >> value;
  85     return value;
  86 }
  87
  88 std::vector<double> control_base::get_vector(const char *name, std::string &value)
  89 {
  90     std::vector<double> t;
  91
  92     if (attribs.count(name)) {
  93         value = attribs[name];
  94     }
  95
  96     string::size_type lpos = value.find_first_not_of(" ", 0);
  97     string::size_type pos  = value.find_first_of(" ", lpos);
  98     while (string::npos != pos || string::npos != lpos) {
  99         double val;
 100         stringstream stream(value.substr(lpos, pos - lpos).c_str());
 101         stream >> val;
 102         t.push_back(val);
 103         lpos = value.find_first_not_of(" ", pos);
 104         pos  = value.find_first_of(" ", lpos);
 105     }
 106     return t;
 107 }
 108
 109 void control_base::set_visibilty(bool state)
 110 {
 111     if (state) {
 112         gtk_widget_show(widget);
 113     } else {
 114         gtk_widget_hide(widget);
 115     }
 116 }
 117
 118 void control_base::set_std_properties()
 119 {
 120     if (widget && attribs.find("widget-name") != attribs.end())
 121     {
 122         string name = attribs["widget-name"];
 123         gtk_widget_set_name(widget, name.c_str());
 124     }
 125     if (widget && GTK_IS_CONTAINER(widget))
 126     {
 127         gtk_container_set_border_width(GTK_CONTAINER(widget), get_int("border"));
 128     }
 129 }
 130
 131 static void on_control_destroy(GtkWidget *w, gpointer p)
 132 {
 133     delete (control_base *)p;
 134 }
 135
 136 void control_base::created()
 137 {
 138     set_std_properties();
 139     g_signal_connect(GTK_OBJECT(widget), "destroy", (GCallback)on_control_destroy, this);
 140 }
 141
 142 /************************* param-associated control base class **************/
 143
 144 param_control::param_control()
 145 {
 146     gui = NULL;
 147     param_no = -1;
 148     in_change = 0;
 149     old_displayed_value = -1.f;
 150     has_entry = false;
 151 }
 152
 153 GtkWidget *param_control::create(plugin_gui *_gui)
 154 {
 155     if (attribs.count("param"))
 156     {
 157         int pno = _gui->get_param_no_by_name(attribs["param"]);
 158         param_variable = _gui->plugin->get_metadata_iface()->get_param_props(pno)->short_name;
 159         return create(_gui, pno);
 160     }
 161     else
 162         return create(_gui, -1);
 163 }
 164
 165 void param_control::hook_params()
 166 {
 167     if (param_no != -1) {
 168         gui->add_param_ctl(param_no, this);
 169     }
 170     gui->params.push_back(this);
 171 }
 172
 173 void param_control::created() {
 174     control_base::created();
 175     set();
 176     hook_params();
 177     add_context_menu_handler();
 178 }
 179
 180 param_control::~param_control()
 181 {
 182     if (param_no != -1)
 183         gui->remove_param_ctl(param_no, this);
 184     //if (GTK_IS_WIDGET(widget))
 185     //    gtk_widget_destroy(widget);
 186 }
 187
 188 void param_control::add_context_menu_handler()
 189 {
 190     if (widget)
 191     {
 192         g_signal_connect(GTK_OBJECT(widget), "button-press-event", (GCallback)on_button_press_event, this);
 193     }
 194 }
 195
 196 gboolean param_control::on_button_press_event(GtkWidget *widget, GdkEventButton *event, void *user_data)
 197 {
 198     param_control *self = (param_control *)user_data;
 199     const parameter_properties &props = self->get_props();
 200     if (event->button == 3 && !(props.flags & PF_PROP_OUTPUT))
 201     {
 202         self->do_popup_menu();
 203         return TRUE;
 204     }
 205     else if (event->button == 2)
 206     {
 207         if (!strcmp(gtk_widget_get_name(widget), "Calf-LineGraph")) {
 208             CalfLineGraph *clg = CALF_LINE_GRAPH(widget);
 209             if (clg->freqhandles && clg->handle_hovered >= 0)  {
 210                 FreqHandle * fh = &clg->freq_handles[clg->handle_hovered];
 211                 self->param_no = fh->param_x_no;
 212             } else
 213                 return FALSE;
 214         }
 215         self->create_value_entry(widget, event->x_root, event->y_root);
 216         return TRUE;
 217     }
 218     return FALSE;
 219 }
 220
 221 void param_control::do_popup_menu()
 222 {
 223     if (gui)
 224         gui->on_control_popup(this, param_no);
 225 }
 226
 227 void param_control::destroy_value_entry ()
 228 {
 229     // remove the window containing the entry
 230     gtk_widget_destroy(GTK_WIDGET(entrywin));
 231     has_entry = false;
 232 }
 233 gboolean param_control::value_entry_unfocus(GtkWidget *widget, GdkEventFocus *event, void *user_data)
 234 {
 235     // destroy window if it looses focus
 236     param_control *self = (param_control *)user_data;
 237     self->destroy_value_entry();
 238     return TRUE;
 239 }
 240 gboolean param_control::value_entry_action(GtkEntry *widget, GdkEvent *event, void *user_data)
 241 {
 242     // called when a key was hit, sorts out and treats RETURN and ESC
 243     param_control *self = (param_control *)user_data;
 244     const parameter_properties &props = self->get_props();
 245     GdkEventKey *key = (GdkEventKey*)event;
 246     if(key->keyval == GDK_Escape)
 247         self->destroy_value_entry();
 248     else if (key->keyval == GDK_Return) {
 249         float val = props.string_to_value(gtk_entry_get_text(widget));
 250         self->gui->plugin->set_param_value(self->param_no, val);
 251         self->set();
 252         self->destroy_value_entry();
 253     }
 254     return FALSE;
 255 }
 256 void param_control::create_value_entry(GtkWidget *widget, int x, int y)
 257 {
 258     if (has_entry) {
 259         // kill an existing entry window on re-trigger
 260         destroy_value_entry();
 261         return;
 262     }
 263
 264     if (param_no < 0)
 265         return;
 266
 267     const parameter_properties &props = get_props();
 268     float value = gui->plugin->get_param_value(param_no);
 269
 270     // no chance for a menu, so we have to do everything by hand
 271     entrywin = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 272     gtk_widget_set_name(GTK_WIDGET(entrywin), "Calf-Value-Entry");
 273     gtk_window_set_title (GTK_WINDOW(entrywin), "Calf Value Entry");
 274     gtk_window_set_resizable (GTK_WINDOW(entrywin), FALSE);
 275     gtk_window_set_decorated (GTK_WINDOW(entrywin), FALSE);
 276     gtk_window_set_skip_taskbar_hint (GTK_WINDOW(entrywin), TRUE);
 277     gtk_window_set_skip_pager_hint (GTK_WINDOW(entrywin), TRUE);
 278     gtk_window_set_transient_for (GTK_WINDOW(entrywin), GTK_WINDOW (gui->window->toplevel));
 279     gtk_window_set_gravity(GTK_WINDOW(entrywin), GDK_GRAVITY_CENTER);
 280     gtk_widget_set_events (GTK_WIDGET(entrywin), GDK_FOCUS_CHANGE_MASK);
 281     g_signal_connect (G_OBJECT(entrywin), "focus-out-event", G_CALLBACK (value_entry_unfocus), this);
 282
 283     // create the text entry
 284     GtkWidget *entry = gtk_entry_new();
 285     gtk_widget_set_name(GTK_WIDGET(entry), "Calf-Entry");
 286     gtk_entry_set_width_chars(GTK_ENTRY(entry), props.get_char_count());
 287     gtk_entry_set_text(GTK_ENTRY(entry), props.to_string(value).c_str());
 288     gtk_widget_add_events (entry, GDK_KEY_PRESS_MASK);
 289     g_signal_connect (entry, "key-press-event", (GCallback)value_entry_action, this);
 290
 291     // stitch together and show
 292     gtk_container_add(GTK_CONTAINER (entrywin), entry);
 293     gtk_widget_show_all(entrywin);
 294     gtk_window_move(GTK_WINDOW (entrywin), x, y);
 295
 296     has_entry = true;
 297 }
 298
 299
 300 /******************************** Combo Box ********************************/
 301
 302 GtkWidget *combo_box_param_control::create(plugin_gui *_gui, int _param_no)
 303 {
 304     gui = _gui;
 305     param_no = _param_no;
 306     lstore = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_STRING); // value, key
 307     populating = false;
 308
 309     const parameter_properties &props = get_props();
 310     widget  = calf_combobox_new ();
 311     if (param_no != -1 && props.choices)
 312     {
 313         for (int j = (int)props.min; j <= (int)props.max; j++)
 314             gtk_list_store_insert_with_values (lstore, NULL, j - (int)props.min, 0, props.choices[j - (int)props.min], 1, calf_utils::i2s(j).c_str(), -1);
 315     }
 316
 317     // set pixbuf
 318     calf_combobox_set_arrow(CALF_COMBOBOX(widget),
 319         gui->window->environment->get_image_factory()->get("combo_arrow"));
 320
 321     gtk_combo_box_set_model (GTK_COMBO_BOX(widget), GTK_TREE_MODEL(lstore));
 322     g_signal_connect (GTK_OBJECT (widget), "changed", G_CALLBACK (combo_value_changed), (gpointer)this);
 323     gtk_widget_set_name(widget, "Calf-Combobox");
 324     return widget;
 325 }
 326
 327 void combo_box_param_control::set()
 328 {
 329     _GUARD_CHANGE_
 330     if (param_no != -1)
 331     {
 332         const parameter_properties &props = get_props();
 333         gtk_combo_box_set_active (GTK_COMBO_BOX (widget), (int)gui->plugin->get_param_value(param_no) - (int)props.min);
 334     }
 335 }
 336
 337 void combo_box_param_control::get()
 338 {
 339     if (param_no != -1)
 340     {
 341         const parameter_properties &props = get_props();
 342         gui->set_param_value(param_no, gtk_combo_box_get_active (GTK_COMBO_BOX(widget)) + props.min, this);
 343     }
 344 }
 345
 346 void combo_box_param_control::combo_value_changed(GtkComboBox *widget, gpointer value)
 347 {
 348     combo_box_param_control *jhp = (combo_box_param_control *)value;
 349     if (jhp->populating)
 350         return;
 351     if (jhp->attribs.count("setter-key"))
 352     {
 353         GtkTreeIter iter;
 354         gchar *key = NULL;
 355         if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (jhp->widget), &iter))
 356         {
 357             gtk_tree_model_get (GTK_TREE_MODEL (jhp->lstore), &iter, 1, &key, -1);
 358             if (key) {
 359                 jhp->gui->plugin->configure(jhp->attribs["setter-key"].c_str(), key);
 360                 free(key);
 361             }
 362         }
 363     }
 364     else
 365         jhp->get();
 366 }
 367
 368 void combo_box_param_control::send_status(const char *key, const char *value)
 369 {
 370     if (attribs.count("key") && key == attribs["key"])
 371     {
 372         if (value == last_list)
 373             return;
 374         populating = true;
 375         last_list = value;
 376         gtk_list_store_clear (lstore);
 377         key2pos.clear();
 378         std::string v = value;
 379         int i = 0;
 380         size_t pos = 0;
 381         while (pos < v.length()) {
 382             size_t endpos = v.find("\n", pos);
 383             if (endpos == string::npos)
 384                 break;
 385             string line = v.substr(pos, endpos - pos);
 386             string key, label;
 387             size_t tabpos = line.find('\t');
 388             if (tabpos == string::npos)
 389                 key = label = line;
 390             else {
 391                 key = line.substr(0, tabpos);
 392                 label = line.substr(tabpos + 1);
 393             }
 394             GtkTreeIter gti;
 395             gtk_list_store_insert_with_values (lstore, &gti, i, 0, label.c_str(), 1, key.c_str(), -1);
 396             key2pos[key] = gti;
 397             pos = endpos + 1;
 398             i++;
 399         }
 400         set_to_last_key();
 401         populating = false;
 402     }
 403     if (attribs.count("current-key") && key == attribs["current-key"])
 404     {
 405         last_key = value;
 406         set_to_last_key();
 407     }
 408 }
 409
 410 void combo_box_param_control::set_to_last_key()
 411 {
 412     map<string, GtkTreeIter>::iterator i = key2pos.find(last_key);
 413     if (i != key2pos.end())
 414     {
 415         gtk_combo_box_set_active_iter (GTK_COMBO_BOX (widget), &i->second);
 416
 417     }
 418     else
 419         gtk_combo_box_set_active (GTK_COMBO_BOX (widget), -1);
 420 }
 421
 422 /******************************** Horizontal Fader ********************************/
 423
 424 static gboolean
 425 scale_to_default (gpointer data)
 426 {
 427     hscale_param_control *jhp = (hscale_param_control *)data;
 428     const parameter_properties &props = jhp->get_props();
 429     gtk_range_set_value (GTK_RANGE (jhp->widget), props.to_01(props.def_value));
 430
 431     return FALSE;
 432 }
 433
 434 static gboolean
 435 scale_button_press (GtkWidget *widget, GdkEventKey *event, gpointer *user_data)
 436 {
 437   if (event->type == GDK_2BUTTON_PRESS) {
 438     // this actually creates a harmless race condition, but diving deep
 439     // into gtk signal handling code wouldn't and the resulting complexity
 440     // would not really be worth the effort
 441     // The timeout is set high enough that most of the time the race
 442     // will turn out in our/the users favor
 443     g_timeout_add (200, (GSourceFunc)scale_to_default, user_data);
 444     return TRUE;
 445   }
 446
 447   return FALSE;
 448 }
 449
 450 GtkWidget *hscale_param_control::create(plugin_gui *_gui, int _param_no)
 451 {
 452     gui = _gui;
 453     param_no = _param_no;
 454
 455     widget = calf_fader_new(1, get_int("size", 2), 0, 1, get_props().get_increment());
 456
 457     g_signal_connect (GTK_OBJECT (widget), "value-changed", G_CALLBACK (hscale_value_changed), (gpointer)this);
 458     g_signal_connect (GTK_OBJECT (widget), "format-value", G_CALLBACK (hscale_format_value), (gpointer)this);
 459     g_signal_connect (GTK_OBJECT (widget), "button-press-event", G_CALLBACK (scale_button_press), (gpointer)this);
 460
 461     if(get_int("inverted", 0) > 0) {
 462         gtk_range_set_inverted(GTK_RANGE(widget), TRUE);
 463     }
 464     int size = get_int("size", 2);
 465
 466     // set pixbuf
 467     image_factory *images = gui->window->environment->get_image_factory();
 468     char iname[64];
 469     sprintf(iname, "slider_%d_horiz", size);
 470     calf_fader_set_pixbuf(CALF_FADER(widget), images->get(iname));
 471
 472     char *name = g_strdup_printf("Calf-HScale%i", size);
 473     gtk_widget_set_name(GTK_WIDGET(widget), name);
 474     gtk_widget_set_size_request (widget, size * 100, -1);
 475     g_free(name);
 476
 477     if (attribs.count("width"))
 478         gtk_widget_set_size_request (widget, get_int("width", 200), -1);
 479     if (attribs.count("position")) {
 480         string v = attribs["position"];
 481         if (v == "top") gtk_scale_set_value_pos(GTK_SCALE(widget), GTK_POS_TOP);
 482         if (v == "bottom") gtk_scale_set_value_pos(GTK_SCALE(widget), GTK_POS_BOTTOM);
 483         if (v == "left") gtk_scale_set_value_pos(GTK_SCALE(widget), GTK_POS_LEFT);
 484         if (v == "right") gtk_scale_set_value_pos(GTK_SCALE(widget), GTK_POS_RIGHT);
 485     }
 486     return widget;
 487 }
 488
 489 void hscale_param_control::set()
 490 {
 491     _GUARD_CHANGE_
 492     const parameter_properties &props = get_props();
 493     gtk_range_set_value (GTK_RANGE (widget), props.to_01 (gui->plugin->get_param_value(param_no)));
 494     // hscale_value_changed (GTK_HSCALE (widget), (gpointer)this);
 495 }
 496
 497 void hscale_param_control::get()
 498 {
 499     const parameter_properties &props = get_props();
 500     float cvalue = props.from_01 (gtk_range_get_value (GTK_RANGE (widget)));
 501     gui->set_param_value(param_no, cvalue, this);
 502 }
 503
 504 void hscale_param_control::hscale_value_changed(GtkHScale *widget, gpointer value)
 505 {
 506     hscale_param_control *jhp = (hscale_param_control *)value;
 507     jhp->get();
 508 }
 509
 510 gchar *hscale_param_control::hscale_format_value(GtkScale *widget, double arg1, gpointer value)
 511 {
 512     hscale_param_control *jhp = (hscale_param_control *)value;
 513     const parameter_properties &props = jhp->get_props();
 514     float cvalue = props.from_01 (arg1);
 515
 516     // for testing
 517     // return g_strdup_printf ("%s = %g", props.to_string (cvalue).c_str(), arg1);
 518     return g_strdup (props.to_string (cvalue).c_str());
 519 }
 520
 521 /******************************** Vertical Fader ********************************/
 522
 523 GtkWidget *vscale_param_control::create(plugin_gui *_gui, int _param_no)
 524 {
 525     gui = _gui;
 526     param_no = _param_no;
 527     widget = calf_fader_new(0, get_int("size", 2), 0, 1, get_props().get_increment());
 528     g_signal_connect (GTK_OBJECT (widget), "value-changed", G_CALLBACK (vscale_value_changed), (gpointer)this);
 529     g_signal_connect (GTK_OBJECT (widget), "button-press-event", G_CALLBACK (scale_button_press), (gpointer)this);
 530
 531     gtk_scale_set_draw_value(GTK_SCALE(widget), FALSE);
 532
 533     if(get_int("inverted", 0) > 0) {
 534         gtk_range_set_inverted(GTK_RANGE(widget), TRUE);
 535     }
 536     int size = get_int("size", 2);
 537
 538     // set pixbuf
 539     image_factory *images = gui->window->environment->get_image_factory();
 540     char iname[64];
 541     sprintf(iname, "slider_%d_vert", size);
 542     calf_fader_set_pixbuf(CALF_FADER(widget), images->get(iname));
 543
 544     char *name = g_strdup_printf("Calf-VScale%i", size);
 545     gtk_widget_set_size_request (widget, -1, size * 100);
 546     gtk_widget_set_name(GTK_WIDGET(widget), name);
 547     g_free(name);
 548
 549     if (attribs.count("height"))
 550         gtk_widget_set_size_request (widget, -1, get_int("height", 200));
 551
 552     return widget;
 553 }
 554
 555 void vscale_param_control::set()
 556 {
 557     _GUARD_CHANGE_
 558     const parameter_properties &props = get_props();
 559     gtk_range_set_value (GTK_RANGE (widget), props.to_01 (gui->plugin->get_param_value(param_no)));
 560     // vscale_value_changed (GTK_HSCALE (widget), (gpointer)this);
 561 }
 562
 563 void vscale_param_control::get()
 564 {
 565     const parameter_properties &props = get_props();
 566     float cvalue = props.from_01 (gtk_range_get_value (GTK_RANGE (widget)));
 567     gui->set_param_value(param_no, cvalue, this);
 568 }
 569
 570 void vscale_param_control::vscale_value_changed(GtkHScale *widget, gpointer value)
 571 {
 572     vscale_param_control *jhp = (vscale_param_control *)value;
 573     jhp->get();
 574 }
 575
 576 /******************************** Label ********************************/
 577
 578 GtkWidget *label_param_control::create(plugin_gui *_gui, int _param_no)
 579 {
 580     gui = _gui, param_no = _param_no;
 581     string text;
 582     if (param_no != -1 && !attribs.count("text"))
 583         text = get_props().name;
 584     else
 585         text = attribs["text"];
 586     widget = gtk_label_new(text.c_str());
 587     gtk_misc_set_alignment (GTK_MISC (widget), get_float("align-x", 0.5), get_float("align-y", 0.5));
 588     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-Label");
 589     return widget;
 590 }
 591
 592 /******************************** Value ********************************/
 593
 594 GtkWidget *value_param_control::create(plugin_gui *_gui, int _param_no)
 595 {
 596     gui = _gui;
 597     param_no = _param_no;
 598
 599     widget = gtk_label_new ("");
 600     if (param_no != -1)
 601     {
 602         const parameter_properties &props = get_props();
 603         int width = get_int("width", 0);
 604         gtk_label_set_width_chars (GTK_LABEL (widget),
 605             width ? width : props.get_char_count());
 606     }
 607     else
 608     {
 609         require_attribute("key");
 610         require_int_attribute("width");
 611         param_variable = attribs["key"];
 612         gtk_label_set_width_chars (GTK_LABEL (widget), get_int("width"));
 613     }
 614     gtk_misc_set_alignment (GTK_MISC (widget), get_float("align-x", 0.5), get_float("align-y", 0.5));
 615     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-Value");
 616     return widget;
 617 }
 618
 619 void value_param_control::set()
 620 {
 621     if (param_no == -1)
 622         return;
 623     _GUARD_CHANGE_
 624
 625     const parameter_properties &props = get_props();
 626     string value = props.to_string(gui->plugin->get_param_value(param_no));
 627
 628     if (value == old_value)
 629         return;
 630     old_value = value;
 631     gtk_label_set_text (GTK_LABEL (widget), value.c_str());
 632 }
 633
 634 void value_param_control::send_status(const char *key, const char *value)
 635 {
 636     if (key == param_variable)
 637     {
 638         gtk_label_set_text (GTK_LABEL (widget), value);
 639     }
 640 }
 641
 642 /******************************** VU Meter ********************************/
 643
 644 GtkWidget *vumeter_param_control::create(plugin_gui *_gui, int _param_no)
 645 {
 646     gui = _gui, param_no = _param_no;
 647     // const parameter_properties &props = get_props();
 648     widget = calf_vumeter_new ();
 649     CalfVUMeter *vu = CALF_VUMETER(widget);
 650     gtk_widget_set_name(GTK_WIDGET(widget), "calf-vumeter");
 651     calf_vumeter_set_mode (vu, (CalfVUMeterMode)get_int("mode", 0));
 652     vu->vumeter_hold = get_float("hold", 0);
 653     vu->vumeter_falloff = get_float("falloff", 0.f);
 654     vu->vumeter_width = get_int("width", 80);
 655     vu->vumeter_height = get_int("height", 18);
 656     vu->vumeter_position = get_int("position", 0);
 657     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-VUMeter");
 658     return widget;
 659 }
 660
 661 void vumeter_param_control::set()
 662 {
 663     _GUARD_CHANGE_
 664     // const parameter_properties &props = get_props();
 665     calf_vumeter_set_value (CALF_VUMETER (widget), gui->plugin->get_param_value(param_no));
 666 }
 667
 668 // LED
 669
 670 GtkWidget *led_param_control::create(plugin_gui *_gui, int _param_no)
 671 {
 672     gui = _gui, param_no = _param_no;
 673     // const parameter_properties &props = get_props();
 674     widget = calf_led_new ();
 675     gtk_widget_set_name(GTK_WIDGET(widget), "calf-led");
 676     CALF_LED(widget)->led_mode = get_int("mode", 0);
 677     CALF_LED(widget)->size = get_int("size", 1);
 678     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-LED");
 679     return widget;
 680 }
 681
 682 void led_param_control::set()
 683 {
 684     _GUARD_CHANGE_
 685     // const parameter_properties &props = get_props();
 686     calf_led_set_value (CALF_LED (widget), gui->plugin->get_param_value(param_no));
 687 }
 688
 689 // tube
 690
 691 GtkWidget *tube_param_control::create(plugin_gui *_gui, int _param_no)
 692 {
 693     gui = _gui, param_no = _param_no;
 694     // const parameter_properties &props = get_props();
 695     GtkWidget *widget = calf_tube_new ();
 696     CalfTube *tube = CALF_TUBE(widget);
 697     gtk_widget_set_name(widget, "calf-tube");
 698     tube->size = get_int("size", 2);
 699     tube->direction = get_int("direction", 2);
 700     gtk_widget_set_name(widget, "Calf-Tube");
 701     return widget;
 702 }
 703
 704 void tube_param_control::set()
 705 {
 706     _GUARD_CHANGE_
 707     // const parameter_properties &props = get_props();
 708     calf_tube_set_value (CALF_TUBE (widget), gui->plugin->get_param_value(param_no));
 709 }
 710
 711 /******************************** Check Box ********************************/
 712
 713 GtkWidget *check_param_control::create(plugin_gui *_gui, int _param_no)
 714 {
 715     gui = _gui;
 716     param_no = _param_no;
 717
 718     widget  = gtk_check_button_new ();
 719     g_signal_connect (GTK_OBJECT (widget), "toggled", G_CALLBACK (check_value_changed), (gpointer)this);
 720     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-Checkbox");
 721     return widget;
 722 }
 723
 724 void check_param_control::check_value_changed(GtkCheckButton *widget, gpointer value)
 725 {
 726     param_control *jhp = (param_control *)value;
 727     jhp->get();
 728 }
 729
 730 void check_param_control::get()
 731 {
 732     const parameter_properties &props = get_props();
 733     gui->set_param_value(param_no, gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(widget)) + props.min, this);
 734 }
 735
 736 void check_param_control::set()
 737 {
 738     _GUARD_CHANGE_
 739     const parameter_properties &props = get_props();
 740     gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), (int)gui->plugin->get_param_value(param_no) - (int)props.min);
 741 }
 742
 743 /******************************** Radio Button ********************************/
 744
 745 GtkWidget *radio_param_control::create(plugin_gui *_gui, int _param_no)
 746 {
 747     gui = _gui;
 748     param_no = _param_no;
 749     require_attribute("value");
 750     value = -1;
 751     string value_name = attribs["value"];
 752     const parameter_properties &props = get_props();
 753     if (props.choices && (value_name < "0" || value_name > "9"))
 754     {
 755         for (int i = 0; props.choices[i]; i++)
 756         {
 757             if (value_name == props.choices[i])
 758             {
 759                 value = i + (int)props.min;
 760                 break;
 761             }
 762         }
 763     }
 764     if (value == -1)
 765         value = get_int("value");
 766
 767     if (attribs.count("label"))
 768         widget  = gtk_radio_button_new_with_label (gui->get_radio_group(param_no), attribs["label"].c_str());
 769     else
 770         widget  = gtk_radio_button_new_with_label (gui->get_radio_group(param_no), props.choices[value - (int)props.min]);
 771     gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (widget), FALSE);
 772
 773     gui->set_radio_group(param_no, gtk_radio_button_get_group (GTK_RADIO_BUTTON (widget)));
 774     g_signal_connect (GTK_OBJECT (widget), "clicked", G_CALLBACK (radio_clicked), (gpointer)this);
 775     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-RadioButton");
 776     return widget;
 777 }
 778
 779 void radio_param_control::radio_clicked(GtkRadioButton *widget, gpointer value)
 780 {
 781     param_control *jhp = (param_control *)value;
 782     jhp->get();
 783 }
 784
 785 void radio_param_control::get()
 786 {
 787     // const parameter_properties &props = get_props();
 788     if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
 789         gui->set_param_value(param_no, value, this);
 790 }
 791
 792 void radio_param_control::set()
 793 {
 794     _GUARD_CHANGE_
 795     const parameter_properties &props = get_props();
 796     float pv = gui->plugin->get_param_value(param_no);
 797     if (fabs(value-pv) < 0.5)
 798         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), value == ((int)gui->plugin->get_param_value(param_no) - (int)props.min));
 799 }
 800
 801 /******************************** Spin Button ********************************/
 802
 803 GtkWidget *spin_param_control::create(plugin_gui *_gui, int _param_no)
 804 {
 805     gui = _gui;
 806     param_no = _param_no;
 807
 808     const parameter_properties &props = get_props();
 809     if (props.step > 1)
 810         widget  = gtk_spin_button_new_with_range (props.min, props.max, (props.max - props.min) / (props.step - 1));
 811     if (props.step > 0)
 812         widget  = gtk_spin_button_new_with_range (props.min, props.max, props.step);
 813     else
 814         widget  = gtk_spin_button_new_with_range (props.min, props.max, 1);
 815     gtk_spin_button_set_digits (GTK_SPIN_BUTTON(widget), get_int("digits", 0));
 816     g_signal_connect (GTK_OBJECT (widget), "value-changed", G_CALLBACK (value_changed), (gpointer)this);
 817     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-SpinButton");
 818     return widget;
 819 }
 820
 821 void spin_param_control::value_changed(GtkSpinButton *widget, gpointer value)
 822 {
 823     param_control *jhp = (param_control *)value;
 824     jhp->get();
 825 }
 826
 827 void spin_param_control::get()
 828 {
 829     // const parameter_properties &props = get_props();
 830     gui->set_param_value(param_no, gtk_spin_button_get_value_as_float (GTK_SPIN_BUTTON (widget)), this);
 831 }
 832
 833 void spin_param_control::set()
 834 {
 835     _GUARD_CHANGE_
 836     // const parameter_properties &props = get_props();
 837     gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), gui->plugin->get_param_value(param_no));
 838 }
 839
 840 /******************************** Button ********************************/
 841
 842 GtkWidget *button_param_control::create(plugin_gui *_gui, int _param_no)
 843 {
 844     gui = _gui;
 845     param_no = _param_no;
 846     widget  = calf_button_new ((gchar*)get_props().name);
 847     g_signal_connect (GTK_OBJECT (widget), "pressed", G_CALLBACK (button_clicked), (gpointer)this);
 848     g_signal_connect (GTK_OBJECT (widget), "released", G_CALLBACK (button_clicked), (gpointer)this);
 849     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-Button");
 850     return widget;
 851 }
 852
 853 void button_param_control::button_clicked(GtkButton *widget, gpointer value)
 854 {
 855     param_control *jhp = (param_control *)value;
 856     jhp->get();
 857 }
 858
 859 void button_param_control::get()
 860 {
 861     const parameter_properties &props = get_props();
 862     gui->set_param_value(param_no, gtk_widget_get_state(widget) == GTK_STATE_ACTIVE ? props.max : props.min, this);
 863 }
 864
 865 void button_param_control::set()
 866 {
 867     _GUARD_CHANGE_
 868     const parameter_properties &props = get_props();
 869     if (gui->plugin->get_param_value(param_no) - props.min >= 0.5)
 870         gtk_button_clicked (GTK_BUTTON (widget));
 871 }
 872
 873 /******************************** Knob ********************************/
 874
 875 GtkWidget *knob_param_control::create(plugin_gui *_gui, int _param_no)
 876 {
 877     gui = _gui;
 878     param_no = _param_no;
 879     const parameter_properties &props = get_props();
 880     widget = calf_knob_new();
 881     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-Knob");
 882     CalfKnob * knob = CALF_KNOB(widget);
 883
 884     float increment = props.get_increment();
 885     gtk_range_get_adjustment(GTK_RANGE(widget))->step_increment = increment;
 886
 887     knob->default_value = props.to_01(props.def_value);
 888     knob->type = get_int("type");
 889     calf_knob_set_size(knob, get_int("size", 2));
 890
 891     // set pixbuf
 892     char imgname[16];
 893     sprintf(imgname, "knob_%d", get_int("size", 2));
 894     calf_knob_set_pixbuf(knob, gui->window->environment->get_image_factory()->get(imgname));
 895
 896     //char ticks[128];
 897     std::ostringstream ticks_;
 898     //std::string str = ticks.str();
 899     double min = double(props.min);
 900     double max = double(props.max);
 901     switch (knob->type) {
 902         default:
 903         case 0: ticks_ << min << " " << max; break;
 904         case 1: ticks_ << min << " " << props.from_01(0.5) << " " << max; break;
 905         case 2: ticks_ << min << " " << max; break;
 906         case 3: ticks_ << min << " " << props.from_01(0.25) << " " << props.from_01(0.5) << " " << props.from_01(0.75) << " " << max; break;
 907     }
 908     std::string ticks = ticks_.str();
 909     vector<double> t = get_vector("ticks", ticks);
 910     std::sort(t.begin(), t.end());
 911     for (unsigned int i = 0; i < t.size(); i++)
 912         t[i] = props.to_01(t[i]);
 913     knob->ticks = t;
 914     g_signal_connect(GTK_OBJECT(widget), "value-changed", G_CALLBACK(knob_value_changed), (gpointer)this);
 915     return widget;
 916 }
 917
 918 void knob_param_control::get()
 919 {
 920     const parameter_properties &props = get_props();
 921     float value = props.from_01(gtk_range_get_value(GTK_RANGE(widget)));
 922     gui->set_param_value(param_no, value, this);
 923 }
 924
 925 void knob_param_control::set()
 926 {
 927     _GUARD_CHANGE_
 928     const parameter_properties &props = get_props();
 929     gtk_range_set_value(GTK_RANGE(widget), props.to_01 (gui->plugin->get_param_value(param_no)));
 930 }
 931
 932 void knob_param_control::knob_value_changed(GtkWidget *widget, gpointer value)
 933 {
 934     param_control *jhp = (param_control *)value;
 935     jhp->get();
 936 }
 937
 938 /******************************** Toggle Button ********************************/
 939
 940 GtkWidget *toggle_param_control::create(plugin_gui *_gui, int _param_no)
 941 {
 942     gui = _gui;
 943     param_no = _param_no;
 944     widget  = calf_toggle_new ();
 945     CalfToggle * toggle = CALF_TOGGLE(widget);
 946     calf_toggle_set_size(toggle, get_int("size", 2));
 947
 948     // set pixbuf
 949     image_factory *images = gui->window->environment->get_image_factory();
 950     char imgname[64];
 951     if (attribs.count("icon") != 0) {
 952         sprintf(imgname, "toggle_%d_%s", get_int("size", 2), attribs["icon"].c_str());
 953         if (!images->available(imgname))
 954             sprintf(imgname, "toggle_%d", get_int("size", 2));
 955     } else
 956         sprintf(imgname, "toggle_%d", get_int("size", 2));
 957     calf_toggle_set_pixbuf(toggle, images->get(imgname));
 958
 959     g_signal_connect (GTK_OBJECT (widget), "value-changed", G_CALLBACK (toggle_value_changed), (gpointer)this);
 960     //gtk_widget_set_name(GTK_WIDGET(widget), "Calf-ToggleButton");
 961     return widget;
 962 }
 963
 964 void toggle_param_control::get()
 965 {
 966     const parameter_properties &props = get_props();
 967     float value = props.from_01(gtk_range_get_value(GTK_RANGE(widget)));
 968     gui->set_param_value(param_no, value, this);
 969 }
 970
 971 void toggle_param_control::set()
 972 {
 973     _GUARD_CHANGE_
 974     const parameter_properties &props = get_props();
 975     gtk_range_set_value(GTK_RANGE(widget), props.to_01 (gui->plugin->get_param_value(param_no)));
 976 }
 977
 978 void toggle_param_control::toggle_value_changed(GtkWidget *widget, gpointer value)
 979 {
 980     param_control *jhp = (param_control *)value;
 981     jhp->get();
 982 }
 983
 984 /******************************** Tap Button ********************************/
 985
 986 GtkWidget *tap_button_param_control::create(plugin_gui *_gui, int _param_no)
 987 {
 988     gui       = _gui;
 989     param_no  = _param_no;
 990     last_time = 0;
 991     avg_value = 0;
 992     value     = 0;
 993     timer     = 0;
 994     widget    = calf_tap_button_new ();
 995     // set pixbuf
 996     calf_tap_button_set_pixbufs(CALF_TAP_BUTTON(widget),
 997         gui->window->environment->get_image_factory()->get("tap_inactive"),
 998         gui->window->environment->get_image_factory()->get("tap_prelight"),
 999         gui->window->environment->get_image_factory()->get("tap_active"));
1000     //CALF_TAP(widget)->size = get_int("size", 2);
1001     g_signal_connect (GTK_OBJECT (widget), "button-press-event", G_CALLBACK (tap_button_pressed), (gpointer)this);
1002     g_signal_connect (GTK_OBJECT (widget), "released", G_CALLBACK (tap_button_released), (gpointer)this);
1003     g_signal_connect (GTK_OBJECT (widget), "leave", G_CALLBACK (tap_button_released), (gpointer)this);
1004     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-TapButton");
1005     return widget;
1006 }
1007
1008 void tap_button_param_control::get()
1009 {
1010     gui->set_param_value(param_no, value, this);
1011 }
1012
1013 void tap_button_param_control::set()
1014 {
1015     _GUARD_CHANGE_
1016 }
1017
1018 gboolean tap_button_param_control::tap_button_pressed(GtkWidget *widget, GdkEventButton *event, gpointer value)
1019 {
1020     tap_button_param_control *ctl = (tap_button_param_control *)value;
1021     CalfTapButton *tap = CALF_TAP_BUTTON(widget);
1022
1023     guint time = 0;
1024     if (event->type == GDK_BUTTON_PRESS and event->button == 1) {
1025         time = event->time;
1026         tap->state = 2;
1027         if(ctl->last_time) {
1028             if(ctl->avg_value)
1029                 ctl->avg_value = (ctl->avg_value * 3 + (time - ctl->last_time)) / 4.f;
1030             else
1031                 ctl->avg_value = time - ctl->last_time;
1032             ctl->value = 60.f / (float)(ctl->avg_value / 1000.f);
1033
1034             if (ctl->value > 30 and ctl->value < 300)
1035                 ctl->get();
1036         }
1037         ctl->last_time = time;
1038         if (ctl->timer)
1039             gtk_timeout_remove(ctl->timer);
1040         ctl->timer = gtk_timeout_add(2000, (GtkFunction)tap_button_stop_waiting, (gpointer)ctl);
1041         gtk_widget_queue_draw(widget);
1042     }
1043     return FALSE;
1044 }
1045 void tap_button_param_control::tap_button_stop_waiting(gpointer data)
1046 {
1047     tap_button_param_control *ctl = (tap_button_param_control *)data;
1048     if (ctl->timer) {
1049         ctl->avg_value = 0;
1050         ctl->last_time = 0;
1051         CALF_TAP_BUTTON(ctl->widget)->state = 0;
1052         gtk_widget_queue_draw(ctl->widget);
1053         gtk_timeout_remove(ctl->timer);
1054         ctl->timer = 0;
1055         gtk_widget_queue_draw(ctl->widget);
1056     }
1057 }
1058 gboolean tap_button_param_control::tap_button_released(GtkWidget *widget, gpointer value)
1059 {
1060     tap_button_param_control *ctl = (tap_button_param_control *)value;
1061     CalfTapButton *tap = CALF_TAP_BUTTON(widget);
1062     tap->state = ctl->last_time ? 1 : 0;
1063     gtk_widget_queue_draw(widget);
1064     return FALSE;
1065 }
1066
1067 /******************************** Keyboard ********************************/
1068
1069 GtkWidget *keyboard_param_control::create(plugin_gui *_gui, int _param_no)
1070 {
1071     gui = _gui;
1072     param_no = _param_no;
1073     // const parameter_properties &props = get_props();
1074
1075     widget = calf_keyboard_new();
1076     kb = CALF_KEYBOARD(widget);
1077     kb->nkeys = get_int("octaves", 4) * 7 + 1;
1078     kb->sink = new CalfKeyboard::EventAdapter;
1079     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-Keyboard");
1080     return widget;
1081 }
1082
1083 /******************************** Curve ********************************/
1084
1085 struct curve_param_control_callback: public CalfCurve::EventAdapter
1086 {
1087     curve_param_control *ctl;
1088
1089     curve_param_control_callback(curve_param_control *_ctl)
1090     : ctl(_ctl) {}
1091
1092     virtual void curve_changed(CalfCurve *src, const CalfCurve::point_vector &data) {
1093         stringstream ss;
1094         ss << data.size() << endl;
1095         for (size_t i = 0; i < data.size(); i++)
1096             ss << data[i].first << " " << data[i].second << endl;
1097         ctl->gui->plugin->configure(ctl->attribs["key"].c_str(), ss.str().c_str());
1098     }
1099     virtual void clip(CalfCurve *src, int pt, float &x, float &y, bool &hide)
1100     {
1101         // int gridpt = floor(x * 71 * 2);
1102         // clip to the middle of the nearest white key
1103         x = (floor(x * 71) + 0.5)/ 71.0;
1104     }
1105 };
1106
1107 GtkWidget *curve_param_control::create(plugin_gui *_gui, int _param_no)
1108 {
1109     gui = _gui;
1110     param_no = _param_no;
1111     require_attribute("key");
1112
1113     widget = calf_curve_new(get_int("maxpoints", -1));
1114     curve = CALF_CURVE(widget);
1115     curve->sink = new curve_param_control_callback(this);
1116     // gtk_curve_set_curve_type(curve, GTK_CURVE_TYPE_LINEAR);
1117     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-Curve");
1118     return widget;
1119 }
1120
1121 void curve_param_control::send_configure(const char *key, const char *value)
1122 {
1123     // cout << "send conf " << key << endl;
1124     if (attribs["key"] == key)
1125     {
1126         stringstream ss(value);
1127         CalfCurve::point_vector pts;
1128         if (*value)
1129         {
1130             unsigned int npoints = 0;
1131             ss >> npoints;
1132             unsigned int i;
1133             float x = 0, y = 0;
1134             for (i = 0; i < npoints && i < curve->point_limit; i++)
1135             {
1136                 ss >> x >> y;
1137                 pts.push_back(CalfCurve::point(x, y));
1138             }
1139             calf_curve_set_points(widget, pts);
1140         }
1141     }
1142 }
1143
1144 /******************************** Meter Scale ********************************/
1145
1146 GtkWidget *meter_scale_param_control::create(plugin_gui *_gui, int _param_no)
1147 {
1148     gui = _gui;
1149     param_no = _param_no;
1150     widget  = calf_meter_scale_new ();
1151     CalfMeterScale *ms = CALF_METER_SCALE(widget);
1152     gtk_widget_set_name(widget, "Calf-MeterScale");
1153     string str   = "0 0.5 1";
1154     ms->marker   = get_vector("marker", str);
1155     ms->mode     = (CalfVUMeterMode)get_int("mode", 0);
1156     ms->position = get_int("position", 0);
1157     ms->dots     = get_int("dots", 0);
1158     return widget;
1159 }
1160
1161 /******************************** Entry ********************************/
1162
1163 GtkWidget *entry_param_control::create(plugin_gui *_gui, int _param_no)
1164 {
1165     gui = _gui;
1166     param_no = _param_no;
1167     require_attribute("key");
1168
1169     widget = gtk_entry_new();
1170     entry = GTK_ENTRY(widget);
1171     g_signal_connect(GTK_OBJECT(widget), "changed", G_CALLBACK(entry_value_changed), (gpointer)this);
1172     gtk_editable_set_editable(GTK_EDITABLE(entry), get_int("editable", 1));
1173     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-Entry");
1174     return widget;
1175 }
1176
1177 void entry_param_control::send_configure(const char *key, const char *value)
1178 {
1179     // cout << "send conf " << key << endl;
1180     if (attribs["key"] == key)
1181     {
1182         gtk_entry_set_text(entry, value);
1183     }
1184 }
1185
1186 void entry_param_control::entry_value_changed(GtkWidget *widget, gpointer value)
1187 {
1188     entry_param_control *ctl = (entry_param_control *)value;
1189     ctl->gui->plugin->configure(ctl->attribs["key"].c_str(), gtk_entry_get_text(ctl->entry));
1190 }
1191
1192 /******************************** File Chooser ********************************/
1193
1194 GtkWidget *filechooser_param_control::create(plugin_gui *_gui, int _param_no)
1195 {
1196     gui = _gui;
1197     param_no = _param_no;
1198     require_attribute("key");
1199     require_attribute("title");
1200
1201     widget = gtk_file_chooser_button_new(attribs["title"].c_str(), GTK_FILE_CHOOSER_ACTION_OPEN);
1202     filechooser = GTK_FILE_CHOOSER_BUTTON(widget);
1203     // XXXKF this is GTK+ 2.12 function, does any replacement exist?
1204     // MS: switched from g_signal_connect to g_signal_connect for better emission of signals
1205     g_signal_connect(GTK_OBJECT(widget), "file-set", G_CALLBACK(filechooser_value_changed), (gpointer)this);
1206     if (attribs.count("width"))
1207         gtk_widget_set_size_request (widget, get_int("width", 200), -1);
1208     if (attribs.count("width_chars"))
1209          gtk_file_chooser_button_set_width_chars (filechooser, get_int("width_chars"));
1210          gtk_widget_set_name(GTK_WIDGET(widget), "Calf-FileButton");
1211     return widget;
1212 }
1213
1214 void filechooser_param_control::send_configure(const char *key, const char *value)
1215 {
1216     // cout << "send conf " << key << endl;
1217     if (attribs["key"] == key)
1218     {
1219         gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(filechooser), value);
1220     }
1221 }
1222
1223 void filechooser_param_control::filechooser_value_changed(GtkWidget *widget, gpointer value)
1224 {
1225     filechooser_param_control *ctl = (filechooser_param_control *)value;
1226     const char *filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(ctl->filechooser));
1227     if (filename)
1228         ctl->gui->plugin->configure(ctl->attribs["key"].c_str(), filename);
1229 }
1230
1231 /******************************** Line Graph ********************************/
1232
1233 void line_graph_param_control::on_idle()
1234 {
1235     if (get_int("refresh", 0))
1236         set();
1237 }
1238
1239 static float to_x_pos(float freq)
1240 {
1241     return log(freq / 20.0) / log(1000);
1242 }
1243
1244 static float from_x_pos(float pos)
1245 {
1246     float a = pos * 3.0;
1247     float b = powf(10.0, a);
1248     float c = b * 20.0;
1249     return c;
1250 }
1251
1252 static float to_y_pos(CalfLineGraph *lg, float gain)
1253 {
1254                 //log(gain) * (1.0 / log(32));
1255     return 0.5 - dB_grid(gain, 128 * lg->zoom, lg->offset) / 2.0;
1256 }
1257
1258 static float from_y_pos(CalfLineGraph *lg, float pos)
1259 {
1260     float gain = powf(128.0 * lg->zoom, (0.5 - pos) * 2.0 - lg->offset);
1261     return gain;
1262 }
1263
1264 GtkWidget *line_graph_param_control::create(plugin_gui *a_gui, int a_param_no)
1265 {
1266     gui             = a_gui;
1267     param_no        = a_param_no;
1268     //last_generation = -1;
1269
1270     widget                     = calf_line_graph_new ();
1271
1272     CalfLineGraph *clg         = CALF_LINE_GRAPH(widget);
1273     widget->requisition.width  = get_int("width", 40);
1274     widget->requisition.height = get_int("height", 40);
1275
1276     calf_line_graph_set_square(clg, get_int("square", 0));
1277
1278     clg->source                = gui->plugin->get_line_graph_iface();
1279     clg->source_id             = param_no;
1280     clg->fade                  = get_float("fade", 1.0);
1281     clg->mode                  = get_int("mode", 0);
1282     clg->use_crosshairs        = get_int("crosshairs", 0);
1283     clg->freqhandles           = get_int("freqhandles", 0);
1284     clg->enforce_handle_order  = get_int("enforce-handle-order", 0);
1285     clg->min_handle_distance   = get_float("min-handle-distance", 0.01);
1286
1287     const string &zoom_name = attribs["zoom"];
1288     if (zoom_name != "")
1289         clg->param_zoom = gui->get_param_no_by_name(zoom_name);
1290
1291     const string &offset_name = attribs["offset"];
1292     if (offset_name != "")
1293         clg->param_offset = gui->get_param_no_by_name(offset_name);
1294
1295     if (clg->freqhandles > 0)
1296     {
1297         for(int i = 0; i < clg->freqhandles; i++)
1298         {
1299             FreqHandle *handle = &clg->freq_handles[i];
1300
1301             stringstream handle_x_attribute;
1302             handle_x_attribute << "handle" << i + 1 << "-x";
1303             const string &param_x_name = attribs[handle_x_attribute.str()];
1304             if(param_x_name == "")
1305                 break;
1306
1307             int param_x_no = gui->get_param_no_by_name(param_x_name);
1308             const parameter_properties &handle_x_props = *gui->plugin->get_metadata_iface()->get_param_props(param_x_no);
1309             handle->dimensions = 1;
1310             handle->param_x_no = param_x_no;
1311             handle->value_x = to_x_pos(gui->plugin->get_param_value(param_x_no));
1312             handle->default_value_x = to_x_pos(handle_x_props.def_value);
1313
1314             stringstream handle_y_attribute;
1315             handle_y_attribute << "handle" << i + 1 << "-y";
1316             const string &param_y_name = attribs[handle_y_attribute.str()];
1317             if(param_y_name != "") {
1318                 int param_y_no = gui->get_param_no_by_name(param_y_name);
1319                 const parameter_properties &handle_y_props = *gui->plugin->get_metadata_iface()->get_param_props(param_y_no);
1320                 handle->dimensions = 2;
1321                 handle->param_y_no = param_y_no;
1322                 handle->value_y = to_y_pos(clg, gui->plugin->get_param_value(param_y_no));
1323                 handle->default_value_y = to_y_pos(clg, handle_y_props.def_value);
1324             } else {
1325                 handle->param_y_no = -1;
1326             }
1327
1328             stringstream handle_z_attribute;
1329             handle_z_attribute << "handle" << i + 1 << "-z";
1330             const string &param_z_name = attribs[handle_z_attribute.str()];
1331             if(param_z_name != "") {
1332                 int param_z_no = gui->get_param_no_by_name(param_z_name);
1333                 const parameter_properties &handle_z_props = *gui->plugin->get_metadata_iface()->get_param_props(param_z_no);
1334                 handle->param_z_no = param_z_no;
1335                 handle->value_z = handle_z_props.to_01(gui->plugin->get_param_value(param_z_no));
1336                 handle->default_value_z = handle_z_props.to_01(handle_z_props.def_value);
1337                 handle->props_z = handle_z_props;
1338             } else {
1339                 handle->param_z_no = -1;
1340             }
1341
1342             stringstream label_attribute;
1343             label_attribute << "label" << i + 1;
1344             string label = attribs[label_attribute.str()];
1345             if (!label.empty()) {
1346                 handle->label = strdup(label.c_str());
1347             }
1348
1349             stringstream active_attribute;
1350             active_attribute << "active" << i + 1;
1351             const string &active_name = attribs[active_attribute.str()];
1352             if (active_name != "") {
1353                 handle->param_active_no = gui->get_param_no_by_name(active_name);
1354             } else {
1355                 handle->param_active_no = -1;
1356             }
1357
1358             stringstream style_attribute;
1359             style_attribute << "style" << i + 1;
1360             const string style = style_attribute.str();
1361             clg->freq_handles[i].style = get_int(style.c_str(), 0);
1362             if(clg->freq_handles[i].style == 1 or clg->freq_handles[i].style == 4) {
1363                 clg->freq_handles[i].dimensions = 1;
1364             }
1365             handle->data = (gpointer) this;
1366         }
1367         g_signal_connect(G_OBJECT(widget), "freqhandle-changed", G_CALLBACK(freqhandle_value_changed), this);
1368     }
1369
1370     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-LineGraph");
1371     return widget;
1372 }
1373
1374 void line_graph_param_control::get()
1375 {
1376     GtkWidget *tw = gtk_widget_get_toplevel(widget);
1377     CalfLineGraph *clg = CALF_LINE_GRAPH(widget);
1378
1379     if (tw && GTK_WIDGET_TOPLEVEL(tw) && widget->window)
1380     {
1381         int ws = gdk_window_get_state(widget->window);
1382         if (ws & (GDK_WINDOW_STATE_WITHDRAWN | GDK_WINDOW_STATE_ICONIFIED))
1383             return;
1384
1385         if(clg->handle_grabbed >= 0) {
1386             FreqHandle *handle = &clg->freq_handles[clg->handle_grabbed];
1387             if(handle->dimensions >= 2) {
1388                 float value_y = from_y_pos(clg, handle->value_y);
1389                 gui->set_param_value(handle->param_y_no, value_y, this);
1390             }
1391
1392             float value_x = from_x_pos(handle->value_x);
1393             gui->set_param_value(handle->param_x_no, value_x, this);
1394         } else if(clg->handle_hovered >= 0) {
1395             FreqHandle *handle = &clg->freq_handles[clg->handle_hovered];
1396
1397             if(handle->param_z_no > -1) {
1398                 const parameter_properties &handle_z_props = *gui->plugin->get_metadata_iface()->get_param_props(handle->param_z_no);
1399                 float value_z = handle_z_props.from_01(handle->value_z);
1400                 gui->set_param_value(handle->param_z_no, value_z, this);
1401             }
1402         }
1403     }
1404 }
1405
1406 void line_graph_param_control::set()
1407 {
1408     _GUARD_CHANGE_
1409     GtkWidget *tw = gtk_widget_get_toplevel(widget);
1410     CalfLineGraph *clg = CALF_LINE_GRAPH(widget);
1411     if (tw && GTK_WIDGET_TOPLEVEL(tw) && widget->window)
1412     {
1413         bool force = false;
1414         int ws = gdk_window_get_state(widget->window);
1415         if (ws & (GDK_WINDOW_STATE_WITHDRAWN | GDK_WINDOW_STATE_ICONIFIED))
1416             return;
1417
1418         if (clg->param_zoom >= 0) {
1419             float _z = gui->plugin->get_param_value(clg->param_zoom);
1420             if (_z != clg->zoom) {
1421                 force = true;
1422                 clg->zoom = _z;
1423                 clg->force_redraw = true;
1424             }
1425         }
1426
1427         if (clg->param_offset >= 0) {
1428             float _z = gui->plugin->get_param_value(clg->param_offset);
1429             if (_z != clg->offset) {
1430                 force = true;
1431                 clg->offset = _z;
1432                 clg->force_redraw = true;
1433             }
1434         }
1435
1436         for (int i = 0; i < clg->freqhandles; i++) {
1437             FreqHandle *handle = &clg->freq_handles[i];
1438
1439             if (handle->param_x_no >= 0)
1440             {
1441                 float value_x = gui->plugin->get_param_value(handle->param_x_no);
1442                 handle->value_x = to_x_pos(value_x);
1443                 if (dsp::_sanitize(handle->value_x - handle->last_value_x)) {
1444                     clg->handle_redraw = 1;
1445                 }
1446                 handle->last_value_x = handle->value_x;
1447                 if(handle->dimensions >= 2 && handle->param_y_no >= 0) {
1448                     float value_y = gui->plugin->get_param_value(handle->param_y_no);
1449                     handle->value_y = to_y_pos(clg, value_y);
1450                     if (dsp::_sanitize(handle->value_y - handle->last_value_y)) {
1451                         clg->handle_redraw = 1;
1452                     }
1453                     handle->last_value_y = handle->value_y;
1454                 }
1455             }
1456
1457             if(handle->param_z_no >= 0) {
1458                 const parameter_properties &handle_z_props = *gui->plugin->get_metadata_iface()->get_param_props(handle->param_z_no);
1459                 float value_z = gui->plugin->get_param_value(handle->param_z_no);
1460                 handle->value_z = handle_z_props.to_01(value_z);
1461                 if (dsp::_sanitize(handle->value_z - handle->last_value_z)) {
1462                     clg->handle_redraw = 1;
1463                 }
1464                 handle->last_value_z = handle->value_z;
1465             }
1466             bool _a = handle->active;
1467             if(handle->param_active_no >= 0) {
1468                 handle->active = bool(gui->plugin->get_param_value(handle->param_active_no));
1469             } else {
1470                 handle->active = true;
1471             }
1472             if (handle->active != _a) {
1473                 force = true;
1474                 clg->handle_redraw = true;
1475             }
1476         }
1477         calf_line_graph_expose_request(widget, force);
1478     }
1479 }
1480
1481 void line_graph_param_control::freqhandle_value_changed(GtkWidget *widget, gpointer p)
1482 {
1483     assert(p!=NULL);
1484     FreqHandle *handle = (FreqHandle *)p;
1485     param_control *jhp = (param_control *)handle->data;
1486     jhp->get();
1487 }
1488
1489
1490 line_graph_param_control::~line_graph_param_control()
1491 {
1492
1493 }
1494
1495 /******************************** Phase Graph ********************************/
1496
1497 void phase_graph_param_control::on_idle()
1498 {
1499     if (get_int("refresh", 0))
1500         set();
1501 }
1502
1503 GtkWidget *phase_graph_param_control::create(plugin_gui *_gui, int _param_no)
1504 {
1505     gui = _gui;
1506     param_no = _param_no;
1507     widget = calf_phase_graph_new ();
1508     CalfPhaseGraph *clg = CALF_PHASE_GRAPH(widget);
1509     widget->requisition.width = get_int("size", 40);
1510     widget->requisition.height = get_int("size", 40);
1511     clg->source = gui->plugin->get_phase_graph_iface();
1512     clg->source_id = param_no;
1513     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-PhaseGraph");
1514     return widget;
1515 }
1516
1517 void phase_graph_param_control::set()
1518 {
1519     _GUARD_CHANGE_
1520     GtkWidget *tw = gtk_widget_get_toplevel(widget);
1521     if (tw && GTK_WIDGET_TOPLEVEL(tw) && widget->window) {
1522         gtk_widget_queue_draw(widget);
1523     }
1524 }
1525
1526 phase_graph_param_control::~phase_graph_param_control()
1527 {
1528 }
1529
1530
1531 /******************************** Tuner ********************************/
1532
1533 void tuner_param_control::on_idle()
1534 {
1535     if (get_int("refresh", 0))
1536         set();
1537 }
1538
1539 GtkWidget *tuner_param_control::create(plugin_gui *_gui, int _param_no)
1540 {
1541     gui = _gui;
1542     param_no = _param_no;
1543     widget = calf_tuner_new ();
1544     //CalfTuner *tuner = CALF_TUNER(widget);
1545     widget->requisition.width = get_int("width", 40);
1546     widget->requisition.height = get_int("height", 40);
1547     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-Tuner");
1548
1549     const string &cents_name = attribs["param_cents"];
1550     if (cents_name != "")
1551         cents_no = gui->get_param_no_by_name(cents_name);
1552     else
1553         cents_no = 0;
1554     return widget;
1555 }
1556
1557 void tuner_param_control::set()
1558 {
1559     _GUARD_CHANGE_
1560     GtkWidget *tw = gtk_widget_get_toplevel(widget);
1561     CalfTuner *tuner = CALF_TUNER(widget);
1562     tuner->note = gui->plugin->get_param_value(param_no);
1563     tuner->cents = gui->plugin->get_param_value(cents_no);
1564     if (tw && GTK_WIDGET_TOPLEVEL(tw) && widget->window) {
1565         gtk_widget_queue_draw(widget);
1566     }
1567 }
1568
1569 tuner_param_control::~tuner_param_control()
1570 {
1571 }
1572
1573 /******************************** List View ********************************/
1574
1575 GtkWidget *listview_param_control::create(plugin_gui *_gui, int _param_no)
1576 {
1577     gui = _gui;
1578     param_no = _param_no;
1579
1580     string key = attribs["key"];
1581     tmif = gui->plugin->get_metadata_iface()->get_table_metadata_iface(key.c_str());
1582     if (!tmif)
1583     {
1584         g_error("Missing table_metadata_iface for variable '%s'", key.c_str());
1585         return NULL;
1586     }
1587     positions.clear();
1588     const table_column_info *tci = tmif->get_table_columns();
1589     assert(tci);
1590     cols = 0;
1591     while (tci[cols].name != NULL)
1592         cols++;
1593
1594     GType *p = new GType[cols];
1595     for (int i = 0; i < cols; i++)
1596         p[i] = G_TYPE_STRING;
1597     lstore = gtk_list_store_newv(cols, p);
1598     if (tmif->get_table_rows() != 0)
1599         set_rows(tmif->get_table_rows());
1600     widget = gtk_tree_view_new_with_model(GTK_TREE_MODEL(lstore));
1601     delete []p;
1602     tree = GTK_TREE_VIEW (widget);
1603     g_object_set (G_OBJECT (tree), "enable-search", FALSE, "rules-hint", TRUE, "enable-grid-lines", TRUE, NULL);
1604
1605     for (int i = 0; i < cols; i++)
1606     {
1607         GtkCellRenderer *cr = NULL;
1608
1609         if (tci[i].type == TCT_ENUM) {
1610             cr = gtk_cell_renderer_combo_new ();
1611             GtkListStore *cls = gtk_list_store_new(2, G_TYPE_INT, G_TYPE_STRING);
1612             for (int j = 0; tci[i].values[j]; j++)
1613                 gtk_list_store_insert_with_values(cls, NULL, j, 0, j, 1, tci[i].values[j], -1);
1614             g_object_set(cr, "model", cls, "editable", TRUE, "has-entry", FALSE, "text-column", 1, "mode", GTK_CELL_RENDERER_MODE_EDITABLE, NULL);
1615         }
1616         else {
1617             bool editable = tci[i].type != TCT_LABEL;
1618             cr = gtk_cell_renderer_text_new ();
1619             if (editable)
1620                 g_object_set(cr, "editable", TRUE, "mode", GTK_CELL_RENDERER_MODE_EDITABLE, NULL);
1621         }
1622         g_object_set_data (G_OBJECT(cr), "column", (void *)&tci[i]);
1623         g_signal_connect (GTK_OBJECT (cr), "edited", G_CALLBACK (on_edited), (gpointer)this);
1624         g_signal_connect (GTK_OBJECT (cr), "editing-canceled", G_CALLBACK (on_editing_canceled), (gpointer)this);
1625         gtk_tree_view_insert_column_with_attributes(tree, i, tci[i].name, cr, "text", i, NULL);
1626     }
1627     gtk_tree_view_set_headers_visible(tree, TRUE);
1628     gtk_widget_set_name(GTK_WIDGET(widget), "Calf-ListView");
1629     return widget;
1630 }
1631
1632 void listview_param_control::set_rows(unsigned int needed_rows)
1633 {
1634     while(positions.size() < needed_rows)
1635     {
1636         GtkTreeIter iter;
1637         gtk_list_store_insert(lstore, &iter, positions.size());
1638         for (int j = 0; j < cols; j++)
1639         {
1640             gtk_list_store_set(lstore, &iter, j, "", -1);
1641         }
1642         positions.push_back(iter);
1643     }
1644 }
1645
1646 void listview_param_control::send_configure(const char *key, const char *value)
1647 {
1648     string orig_key = attribs["key"] + ":";
1649     bool is_rows = false;
1650     int row = -1, col = -1;
1651     if (parse_table_key(key, orig_key.c_str(), is_rows, row, col))
1652     {
1653         if (is_rows && tmif->get_table_rows() == 0)
1654         {
1655             int rows = atoi(value);
1656             set_rows(rows);
1657             return;
1658         }
1659         else
1660         if (row != -1 && col != -1)
1661         {
1662             int max_rows = tmif->get_table_rows();
1663             if (col < 0 || col >= cols)
1664             {
1665                 g_warning("Invalid column %d in key %s", col, key);
1666                 return;
1667             }
1668             if (max_rows && (row < 0 || row >= max_rows))
1669             {
1670                 g_warning("Invalid row %d in key %s, this is a fixed table with row count = %d", row, key, max_rows);
1671                 return;
1672             }
1673
1674             if (row >= (int)positions.size())
1675                 set_rows(row + 1);
1676
1677             gtk_list_store_set(lstore, &positions[row], col, value, -1);
1678             return;
1679         }
1680     }
1681 }
1682
1683 void listview_param_control::on_edited(GtkCellRenderer *renderer, gchar *path, gchar *new_text, listview_param_control *pThis)
1684 {
1685     const table_column_info *tci = pThis->tmif->get_table_columns();
1686     int column = ((table_column_info *)g_object_get_data(G_OBJECT(renderer), "column")) - tci;
1687     string key = pThis->attribs["key"] + ":" + i2s(atoi(path)) + "," + i2s(column);
1688     string error;
1689     const char *error_or_null = pThis->gui->plugin->configure(key.c_str(), new_text);
1690     if (error_or_null)
1691         error = error_or_null;
1692
1693     if (error.empty()) {
1694         pThis->send_configure(key.c_str(), new_text);
1695         gtk_widget_grab_focus(pThis->widget);
1696         GtkTreePath *gpath = gtk_tree_path_new_from_string (path);
1697         gtk_tree_view_set_cursor_on_cell (GTK_TREE_VIEW (pThis->widget), gpath, NULL, NULL, FALSE);
1698         gtk_tree_path_free (gpath);
1699     }
1700     else
1701     {
1702         GtkWidget *dialog = gtk_message_dialog_new(pThis->gui->window->toplevel, GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
1703             "%s", error.c_str());
1704         gtk_dialog_run(GTK_DIALOG(dialog));
1705         gtk_widget_destroy(dialog);
1706         gtk_widget_grab_focus(pThis->widget);
1707     }
1708 }
1709
1710 void listview_param_control::on_editing_canceled(GtkCellRenderer *renderer, listview_param_control *pThis)
1711 {
1712     gtk_widget_grab_focus(pThis->widget);
1713 }
1714
1715 /******************************** GtkNotebook control ********************************/
1716
1717 GtkWidget *notebook_param_control::create(plugin_gui *_gui, int _param_no)
1718 {
1719     gui = _gui;
1720     param_no = _param_no;
1721     //const parameter_properties &props = get_props();
1722     if (param_no < 0)
1723         page = 0;
1724     else
1725         page = gui->plugin->get_param_value(param_no);
1726     GtkWidget *nb = calf_notebook_new();
1727     widget = GTK_WIDGET(nb);
1728     calf_notebook_set_pixbuf(CALF_NOTEBOOK(nb),
1729         gui->window->environment->get_image_factory()->get("notebook_screw"));
1730     gtk_widget_set_name(widget, "Calf-Notebook");
1731     gtk_notebook_set_current_page(GTK_NOTEBOOK(widget), page);
1732     return nb;
1733 }
1734 void notebook_param_control::created()
1735 {
1736     g_signal_connect (GTK_OBJECT (widget), "switch-page", G_CALLBACK (notebook_page_changed), (gpointer)this);
1737     set();
1738 }
1739 void notebook_param_control::get()
1740 {
1741     if (param_no >= 0)
1742         gui->set_param_value(param_no, page, this);
1743 }
1744 void notebook_param_control::set()
1745 {
1746     if (param_no < 0)
1747         return;
1748     _GUARD_CHANGE_
1749     page = (gint)gui->plugin->get_param_value(param_no);
1750     gtk_notebook_set_current_page(GTK_NOTEBOOK(widget), page);
1751 }
1752 void notebook_param_control::add(control_base *base)
1753 {
1754     gtk_notebook_append_page(GTK_NOTEBOOK(widget), base->widget, gtk_label_new_with_mnemonic(base->attribs["page"].c_str()));
1755 }
1756 void notebook_param_control::notebook_page_changed(GtkWidget *widget, GtkWidget *page, guint id, gpointer user)
1757 {
1758     notebook_param_control *jhp = (notebook_param_control *)user;
1759     jhp->page = (int)id;
1760     jhp->get();
1761 }
1762
1763 /******************************** GtkTable container ********************************/
1764
1765 GtkWidget *table_container::create(plugin_gui *_gui)
1766 {
1767     require_int_attribute("rows");
1768     require_int_attribute("cols");
1769     int homog = get_int("homogeneous", 0);
1770     int sx = get_int("spacing-x", 2);
1771     int sy = get_int("spacing-y", 2);
1772     GtkWidget *table = gtk_table_new(get_int("rows", 1), get_int("cols", 1), false);
1773     if(homog > 0) {
1774         gtk_table_set_homogeneous(GTK_TABLE(table), TRUE);
1775     }
1776     gtk_table_set_col_spacings(GTK_TABLE(table), sx);
1777     gtk_table_set_row_spacings(GTK_TABLE(table), sy);
1778     widget = table;
1779     gtk_widget_set_name(GTK_WIDGET(table), "Calf-Table");
1780     return table;
1781 }
1782
1783 void table_container::add(control_base *base)
1784 {
1785     base->require_int_attribute("attach-x");
1786     base->require_int_attribute("attach-y");
1787     int x = base->get_int("attach-x"), y = base->get_int("attach-y");
1788     int w = base->get_int("attach-w", 1), h = base->get_int("attach-h", 1);
1789     int shrinkx = base->get_int("shrink-x", 0);
1790     int shrinky = base->get_int("shrink-y", 0);
1791     int fillx = (base->get_int("fill-x", !shrinkx) ? GTK_FILL : 0) | (base->get_int("expand-x", !shrinkx) ? GTK_EXPAND : 0) | (shrinkx ? GTK_SHRINK : 0);
1792     int filly = (base->get_int("fill-y", !shrinky) ? GTK_FILL : 0) | (base->get_int("expand-y", !shrinky) ? GTK_EXPAND : 0) | (base->get_int("shrink-y", 0) ? GTK_SHRINK : 0);
1793     int padx = base->get_int("pad-x", 2);
1794     int pady = base->get_int("pad-y", 2);
1795     gtk_table_attach(GTK_TABLE(widget), base->widget, x, x + w, y, y + h, (GtkAttachOptions)fillx, (GtkAttachOptions)filly, padx, pady);
1796 }
1797
1798 /******************************** alignment container ********************************/
1799
1800 GtkWidget *alignment_container::create(plugin_gui *_gui)
1801 {
1802     widget = gtk_alignment_new(get_float("align-x", 0.5), get_float("align-y", 0.5), get_float("scale-x", 0), get_float("scale-y", 0));
1803     gtk_widget_set_name(widget, "Calf-Align");
1804     return widget;
1805 }
1806
1807 /******************************** GtkFrame container ********************************/
1808
1809 GtkWidget *frame_container::create(plugin_gui *_gui)
1810 {
1811     widget = calf_frame_new(attribs["label"].c_str());
1812     gtk_widget_set_name(widget, "Calf-Frame");
1813     return widget;
1814 }
1815
1816 /******************************** GtkBox type of containers ********************************/
1817
1818 void box_container::add(control_base *base)
1819 {
1820     gtk_container_add_with_properties(GTK_CONTAINER(widget), base->widget, "expand", get_int("expand", 1), "fill", get_int("fill", 1), NULL);
1821 }
1822
1823 /******************************** GtkHBox container ********************************/
1824
1825 GtkWidget *hbox_container::create(plugin_gui *_gui)
1826 {
1827     widget = gtk_hbox_new(get_int("homogeneous") >= 1, get_int("spacing", 2));
1828     gtk_widget_set_name(widget, "Calf-HBox");
1829     return widget;
1830 }
1831
1832 /******************************** GtkVBox container ********************************/
1833
1834 GtkWidget *vbox_container::create(plugin_gui *_gui)
1835 {
1836     widget = gtk_vbox_new(get_int("homogeneous") >= 1, get_int("spacing", 2));
1837     gtk_widget_set_name(widget, "Calf-VBox");
1838     return widget;
1839 }
1840
1841 /******************************** GtkNotebook container ********************************/
1842
1843 GtkWidget *scrolled_container::create(plugin_gui *_gui)
1844 {
1845     GtkAdjustment *horiz = NULL, *vert = NULL;
1846     int width = get_int("width", 0), height = get_int("height", 0);
1847     if (width)
1848         horiz = GTK_ADJUSTMENT(gtk_adjustment_new(get_int("x", 0), 0, width, get_int("step-x", 1), get_int("page-x", width / 10), 100));
1849     if (height)
1850         vert = GTK_ADJUSTMENT(gtk_adjustment_new(get_int("y", 0), 0, width, get_int("step-y", 1), get_int("page-y", height / 10), 10));
1851     widget = gtk_scrolled_window_new(horiz, vert);
1852     gtk_widget_set_size_request(widget, get_int("req-x", -1), get_int("req-y", -1));
1853     gtk_widget_set_name(widget, "Calf-ScrolledWindow");
1854     return widget;
1855 }
1856
1857 void scrolled_container::add(control_base *base)
1858 {
1859     gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(widget), base->widget);
1860 }