src/gui.cpp

   1 /* Calf DSP Library
   2  * GUI functions for a plugin.
   3  * Copyright (C) 2007 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., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <config.h>
  22 #include <assert.h>
  23 #include <calf/ctl_curve.h>
  24 #include <calf/ctl_keyboard.h>
  25 #include <calf/ctl_led.h>
  26 #include <calf/giface.h>
  27 #include <calf/gui.h>
  28 #include <calf/preset.h>
  29 #include <calf/preset_gui.h>
  30 #include <calf/main_win.h>
  31
  32 #include <iostream>
  33
  34 using namespace calf_plugins;
  35 using namespace std;
  36
  37 /******************************** controls ********************************/
  38
  39 GtkWidget *param_control::create_label()
  40 {
  41     label = gtk_label_new ("");
  42     gtk_label_set_width_chars (GTK_LABEL (label), 12);
  43     gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
  44     return label;
  45 }
  46
  47 void param_control::update_label()
  48 {
  49     parameter_properties &props = get_props();
  50     gtk_label_set_text (GTK_LABEL (label), props.to_string(gui->plugin->get_param_value(param_no)).c_str());
  51 }
  52
  53 void param_control::hook_params()
  54 {
  55     if (param_no != -1) {
  56         gui->add_param_ctl(param_no, this);
  57     }
  58     gui->params.push_back(this);
  59 }
  60
  61 param_control::~param_control()
  62 {
  63     if (label)
  64         gtk_widget_destroy(label);
  65     if (widget)
  66         gtk_widget_destroy(widget);
  67 }
  68
  69 // combo box
  70
  71 GtkWidget *combo_box_param_control::create(plugin_gui *_gui, int _param_no)
  72 {
  73     gui = _gui;
  74     param_no = _param_no;
  75
  76     parameter_properties &props = get_props();
  77     widget  = gtk_combo_box_new_text ();
  78     for (int j = (int)props.min; j <= (int)props.max; j++)
  79         gtk_combo_box_append_text (GTK_COMBO_BOX (widget), props.choices[j - (int)props.min]);
  80     gtk_signal_connect (GTK_OBJECT (widget), "changed", G_CALLBACK (combo_value_changed), (gpointer)this);
  81
  82     return widget;
  83 }
  84
  85 void combo_box_param_control::set()
  86 {
  87     _GUARD_CHANGE_
  88     parameter_properties &props = get_props();
  89     gtk_combo_box_set_active (GTK_COMBO_BOX (widget), (int)gui->plugin->get_param_value(param_no) - (int)props.min);
  90 }
  91
  92 void combo_box_param_control::get()
  93 {
  94     parameter_properties &props = get_props();
  95     gui->set_param_value(param_no, gtk_combo_box_get_active (GTK_COMBO_BOX(widget)) + props.min, this);
  96 }
  97
  98 void combo_box_param_control::combo_value_changed(GtkComboBox *widget, gpointer value)
  99 {
 100     param_control *jhp = (param_control *)value;
 101     jhp->get();
 102 }
 103
 104 // horizontal fader
 105
 106 GtkWidget *hscale_param_control::create(plugin_gui *_gui, int _param_no)
 107 {
 108     gui = _gui;
 109     param_no = _param_no;
 110
 111     widget = gtk_hscale_new_with_range (0, 1, get_props().get_increment());
 112     gtk_signal_connect (GTK_OBJECT (widget), "value-changed", G_CALLBACK (hscale_value_changed), (gpointer)this);
 113     gtk_signal_connect (GTK_OBJECT (widget), "format-value", G_CALLBACK (hscale_format_value), (gpointer)this);
 114     gtk_widget_set_size_request (widget, 200, -1);
 115
 116     return widget;
 117 }
 118
 119 void hscale_param_control::init_xml(const char *element)
 120 {
 121     if (attribs.count("width"))
 122         gtk_widget_set_size_request (widget, get_int("width", 200), -1);
 123     if (attribs.count("position"))
 124     {
 125         string v = attribs["position"];
 126         if (v == "top") gtk_scale_set_value_pos(GTK_SCALE(widget), GTK_POS_TOP);
 127         if (v == "bottom") gtk_scale_set_value_pos(GTK_SCALE(widget), GTK_POS_BOTTOM);
 128     }
 129 }
 130
 131 void hscale_param_control::set()
 132 {
 133     _GUARD_CHANGE_
 134     parameter_properties &props = get_props();
 135     gtk_range_set_value (GTK_RANGE (widget), props.to_01 (gui->plugin->get_param_value(param_no)));
 136     // hscale_value_changed (GTK_HSCALE (widget), (gpointer)this);
 137 }
 138
 139 void hscale_param_control::get()
 140 {
 141     parameter_properties &props = get_props();
 142     float cvalue = props.from_01 (gtk_range_get_value (GTK_RANGE (widget)));
 143     gui->set_param_value(param_no, cvalue, this);
 144 }
 145
 146 void hscale_param_control::hscale_value_changed(GtkHScale *widget, gpointer value)
 147 {
 148     hscale_param_control *jhp = (hscale_param_control *)value;
 149     jhp->get();
 150 }
 151
 152 gchar *hscale_param_control::hscale_format_value(GtkScale *widget, double arg1, gpointer value)
 153 {
 154     hscale_param_control *jhp = (hscale_param_control *)value;
 155     const parameter_properties &props = jhp->get_props();
 156     float cvalue = props.from_01 (arg1);
 157
 158     // for testing
 159     // return g_strdup_printf ("%s = %g", props.to_string (cvalue).c_str(), arg1);
 160     return g_strdup (props.to_string (cvalue).c_str());
 161 }
 162
 163 // vertical fader
 164
 165 GtkWidget *vscale_param_control::create(plugin_gui *_gui, int _param_no)
 166 {
 167     gui = _gui;
 168     param_no = _param_no;
 169
 170     widget = gtk_vscale_new_with_range (0, 1, get_props().get_increment());
 171     gtk_signal_connect (GTK_OBJECT (widget), "value-changed", G_CALLBACK (vscale_value_changed), (gpointer)this);
 172     gtk_scale_set_draw_value(GTK_SCALE(widget), FALSE);
 173     gtk_widget_set_size_request (widget, -1, 200);
 174
 175     return widget;
 176 }
 177
 178 void vscale_param_control::init_xml(const char *element)
 179 {
 180     if (attribs.count("height"))
 181         gtk_widget_set_size_request (widget, -1, get_int("height", 200));
 182 }
 183
 184 void vscale_param_control::set()
 185 {
 186     _GUARD_CHANGE_
 187     parameter_properties &props = get_props();
 188     gtk_range_set_value (GTK_RANGE (widget), props.to_01 (gui->plugin->get_param_value(param_no)));
 189     // vscale_value_changed (GTK_HSCALE (widget), (gpointer)this);
 190 }
 191
 192 void vscale_param_control::get()
 193 {
 194     parameter_properties &props = get_props();
 195     float cvalue = props.from_01 (gtk_range_get_value (GTK_RANGE (widget)));
 196     gui->set_param_value(param_no, cvalue, this);
 197 }
 198
 199 void vscale_param_control::vscale_value_changed(GtkHScale *widget, gpointer value)
 200 {
 201     vscale_param_control *jhp = (vscale_param_control *)value;
 202     jhp->get();
 203 }
 204
 205 // label
 206
 207 GtkWidget *label_param_control::create(plugin_gui *_gui, int _param_no)
 208 {
 209     gui = _gui, param_no = _param_no;
 210     string text;
 211     if (param_no != -1)
 212         text = get_props().name;
 213     else
 214         text = attribs["text"];
 215     widget = gtk_label_new(text.c_str());
 216     gtk_misc_set_alignment (GTK_MISC (widget), get_float("align-x", 0.5), get_float("align-y", 0.5));
 217     return widget;
 218 }
 219
 220 // value
 221
 222 GtkWidget *value_param_control::create(plugin_gui *_gui, int _param_no)
 223 {
 224     gui = _gui, param_no = _param_no;
 225     parameter_properties &props = get_props();
 226     widget = gtk_label_new ("");
 227     gtk_label_set_width_chars (GTK_LABEL (widget), props.get_char_count());
 228     gtk_misc_set_alignment (GTK_MISC (widget), get_float("align-x", 0.5), get_float("align-y", 0.5));
 229     return widget;
 230 }
 231
 232 void value_param_control::set()
 233 {
 234     _GUARD_CHANGE_
 235     parameter_properties &props = get_props();
 236     gtk_label_set_text (GTK_LABEL (widget), props.to_string(gui->plugin->get_param_value(param_no)).c_str());
 237 }
 238
 239 // VU meter
 240
 241 GtkWidget *vumeter_param_control::create(plugin_gui *_gui, int _param_no)
 242 {
 243     gui = _gui, param_no = _param_no;
 244     // parameter_properties &props = get_props();
 245     widget = calf_vumeter_new ();
 246     calf_vumeter_set_mode (CALF_VUMETER (widget), (CalfVUMeterMode)get_int("mode", 0));
 247     return widget;
 248 }
 249
 250 void vumeter_param_control::set()
 251 {
 252     _GUARD_CHANGE_
 253     parameter_properties &props = get_props();
 254     calf_vumeter_set_value (CALF_VUMETER (widget), props.to_01(gui->plugin->get_param_value(param_no)));
 255     if (label)
 256         update_label();
 257 }
 258
 259 // LED
 260
 261 GtkWidget *led_param_control::create(plugin_gui *_gui, int _param_no)
 262 {
 263     gui = _gui, param_no = _param_no;
 264     // parameter_properties &props = get_props();
 265     widget = calf_led_new ();
 266     return widget;
 267 }
 268
 269 void led_param_control::set()
 270 {
 271     _GUARD_CHANGE_
 272     // parameter_properties &props = get_props();
 273     calf_led_set_state (CALF_LED (widget), gui->plugin->get_param_value(param_no) > 0);
 274     if (label)
 275         update_label();
 276 }
 277
 278 // check box
 279
 280 GtkWidget *toggle_param_control::create(plugin_gui *_gui, int _param_no)
 281 {
 282     gui = _gui;
 283     param_no = _param_no;
 284
 285     widget  = gtk_check_button_new ();
 286     gtk_signal_connect (GTK_OBJECT (widget), "toggled", G_CALLBACK (toggle_value_changed), (gpointer)this);
 287     return widget;
 288 }
 289
 290 void toggle_param_control::toggle_value_changed(GtkCheckButton *widget, gpointer value)
 291 {
 292     param_control *jhp = (param_control *)value;
 293     jhp->get();
 294 }
 295
 296 void toggle_param_control::get()
 297 {
 298     const parameter_properties &props = get_props();
 299     gui->set_param_value(param_no, gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(widget)) + props.min, this);
 300 }
 301
 302 void toggle_param_control::set()
 303 {
 304     _GUARD_CHANGE_
 305     const parameter_properties &props = get_props();
 306     gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), (int)gui->plugin->get_param_value(param_no) - (int)props.min);
 307 }
 308
 309 // spin button
 310
 311 GtkWidget *spin_param_control::create(plugin_gui *_gui, int _param_no)
 312 {
 313     gui = _gui;
 314     param_no = _param_no;
 315
 316     const parameter_properties &props = get_props();
 317     if (props.step > 1)
 318         widget  = gtk_spin_button_new_with_range (props.min, props.max, (props.max - props.min) / (props.step - 1));
 319     if (props.step > 0)
 320         widget  = gtk_spin_button_new_with_range (props.min, props.max, props.step);
 321     else
 322         widget  = gtk_spin_button_new_with_range (props.min, props.max, 1);
 323     gtk_spin_button_set_digits (GTK_SPIN_BUTTON(widget), get_int("digits", 0));
 324     gtk_signal_connect (GTK_OBJECT (widget), "value-changed", G_CALLBACK (value_changed), (gpointer)this);
 325     return widget;
 326 }
 327
 328 void spin_param_control::value_changed(GtkSpinButton *widget, gpointer value)
 329 {
 330     param_control *jhp = (param_control *)value;
 331     jhp->get();
 332 }
 333
 334 void spin_param_control::get()
 335 {
 336     // const parameter_properties &props = get_props();
 337     gui->set_param_value(param_no, gtk_spin_button_get_value_as_float (GTK_SPIN_BUTTON (widget)), this);
 338 }
 339
 340 void spin_param_control::set()
 341 {
 342     _GUARD_CHANGE_
 343     // const parameter_properties &props = get_props();
 344     gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), gui->plugin->get_param_value(param_no));
 345 }
 346
 347 // button
 348
 349 GtkWidget *button_param_control::create(plugin_gui *_gui, int _param_no)
 350 {
 351     gui = _gui;
 352     param_no = _param_no;
 353
 354     widget  = gtk_button_new_with_label (get_props().name);
 355     gtk_signal_connect (GTK_OBJECT (widget), "clicked", G_CALLBACK (button_clicked), (gpointer)this);
 356     return widget;
 357 }
 358
 359 void button_param_control::button_clicked(GtkButton *widget, gpointer value)
 360 {
 361     param_control *jhp = (param_control *)value;
 362
 363     jhp->get();
 364 }
 365
 366 void button_param_control::get()
 367 {
 368     const parameter_properties &props = get_props();
 369     gui->set_param_value(param_no, props.max, this);
 370 }
 371
 372 void button_param_control::set()
 373 {
 374     _GUARD_CHANGE_
 375     const parameter_properties &props = get_props();
 376     if (gui->plugin->get_param_value(param_no) - props.min >= 0.5)
 377         gtk_button_clicked (GTK_BUTTON (widget));
 378 }
 379
 380 // knob
 381
 382 GtkWidget *knob_param_control::create(plugin_gui *_gui, int _param_no)
 383 {
 384     gui = _gui;
 385     param_no = _param_no;
 386     const parameter_properties &props = get_props();
 387
 388     //widget = calf_knob_new_with_range (props.to_01 (gui->plugin->get_param_value(param_no)), 0, 1, 0.01);
 389     widget = calf_knob_new();
 390     float increment = props.get_increment();
 391     gtk_range_get_adjustment(GTK_RANGE(widget))->step_increment = increment;
 392     CALF_KNOB(widget)->knob_type = get_int("type");
 393     gtk_signal_connect(GTK_OBJECT(widget), "value-changed", G_CALLBACK(knob_value_changed), (gpointer)this);
 394     return widget;
 395 }
 396
 397 void knob_param_control::get()
 398 {
 399     const parameter_properties &props = get_props();
 400     float value = props.from_01(gtk_range_get_value(GTK_RANGE(widget)));
 401     gui->set_param_value(param_no, value, this);
 402     if (label)
 403         update_label();
 404 }
 405
 406 void knob_param_control::set()
 407 {
 408     _GUARD_CHANGE_
 409     const parameter_properties &props = get_props();
 410     gtk_range_set_value(GTK_RANGE(widget), props.to_01 (gui->plugin->get_param_value(param_no)));
 411     if (label)
 412         update_label();
 413 }
 414
 415 void knob_param_control::knob_value_changed(GtkWidget *widget, gpointer value)
 416 {
 417     param_control *jhp = (param_control *)value;
 418     jhp->get();
 419 }
 420
 421 // keyboard
 422
 423 GtkWidget *keyboard_param_control::create(plugin_gui *_gui, int _param_no)
 424 {
 425     gui = _gui;
 426     param_no = _param_no;
 427     // const parameter_properties &props = get_props();
 428
 429     widget = calf_keyboard_new();
 430     kb = CALF_KEYBOARD(widget);
 431     kb->nkeys = get_int("octaves", 4) * 7 + 1;
 432     kb->sink = new CalfKeyboard::EventAdapter;
 433     return widget;
 434 }
 435
 436 // curve
 437
 438 struct curve_param_control_callback: public CalfCurve::EventAdapter
 439 {
 440     curve_param_control *ctl;
 441
 442     curve_param_control_callback(curve_param_control *_ctl)
 443     : ctl(_ctl) {}
 444
 445     virtual void curve_changed(CalfCurve *src, const CalfCurve::point_vector &data) {
 446         stringstream ss;
 447         ss << data.size() << endl;
 448         for (size_t i = 0; i < data.size(); i++)
 449             ss << data[i].first << " " << data[i].second << endl;
 450         ctl->gui->plugin->configure(ctl->attribs["key"].c_str(), ss.str().c_str());
 451     }
 452     virtual void clip(CalfCurve *src, int pt, float &x, float &y, bool &hide)
 453     {
 454         // int gridpt = floor(x * 71 * 2);
 455         // clip to the middle of the nearest white key
 456         x = (floor(x * 71) + 0.5)/ 71.0;
 457     }
 458 };
 459
 460 GtkWidget *curve_param_control::create(plugin_gui *_gui, int _param_no)
 461 {
 462     gui = _gui;
 463     param_no = _param_no;
 464     require_attribute("key");
 465
 466     widget = calf_curve_new(get_int("maxpoints", -1));
 467     curve = CALF_CURVE(widget);
 468     curve->sink = new curve_param_control_callback(this);
 469     // gtk_curve_set_curve_type(curve, GTK_CURVE_TYPE_LINEAR);
 470     return widget;
 471 }
 472
 473 void curve_param_control::send_configure(const char *key, const char *value)
 474 {
 475     // cout << "send conf " << key << endl;
 476     if (attribs["key"] == key)
 477     {
 478         stringstream ss(value);
 479         CalfCurve::point_vector pts;
 480         if (*value)
 481         {
 482             unsigned int npoints = 0;
 483             ss >> npoints;
 484             unsigned int i;
 485             float x = 0, y = 0;
 486             for (i = 0; i < npoints && i < curve->point_limit; i++)
 487             {
 488                 ss >> x >> y;
 489                 pts.push_back(CalfCurve::point(x, y));
 490             }
 491             calf_curve_set_points(widget, pts);
 492         }
 493     }
 494 }
 495
 496 // entry
 497
 498 GtkWidget *entry_param_control::create(plugin_gui *_gui, int _param_no)
 499 {
 500     gui = _gui;
 501     param_no = _param_no;
 502     require_attribute("key");
 503
 504     widget = gtk_entry_new();
 505     entry = GTK_ENTRY(widget);
 506     gtk_signal_connect(GTK_OBJECT(widget), "changed", G_CALLBACK(entry_value_changed), (gpointer)this);
 507     gtk_editable_set_editable(GTK_EDITABLE(entry), get_int("editable", 1));
 508     return widget;
 509 }
 510
 511 void entry_param_control::send_configure(const char *key, const char *value)
 512 {
 513     // cout << "send conf " << key << endl;
 514     if (attribs["key"] == key)
 515     {
 516         gtk_entry_set_text(entry, value);
 517     }
 518 }
 519
 520 void entry_param_control::entry_value_changed(GtkWidget *widget, gpointer value)
 521 {
 522     entry_param_control *ctl = (entry_param_control *)value;
 523     ctl->gui->plugin->configure(ctl->attribs["key"].c_str(), gtk_entry_get_text(ctl->entry));
 524 }
 525
 526 // filechooser
 527
 528 GtkWidget *filechooser_param_control::create(plugin_gui *_gui, int _param_no)
 529 {
 530     gui = _gui;
 531     param_no = _param_no;
 532     require_attribute("key");
 533     require_attribute("title");
 534
 535     widget = gtk_file_chooser_button_new(attribs["title"].c_str(), GTK_FILE_CHOOSER_ACTION_OPEN);
 536     filechooser = GTK_FILE_CHOOSER_BUTTON(widget);
 537     // XXXKF this is GTK+ 2.12 function, does any replacement exist?
 538     gtk_signal_connect(GTK_OBJECT(widget), "file-set", G_CALLBACK(filechooser_value_changed), (gpointer)this);
 539     if (attribs.count("width"))
 540         gtk_widget_set_size_request (widget, get_int("width", 200), -1);
 541     if (attribs.count("width_chars"))
 542          gtk_file_chooser_button_set_width_chars (filechooser, get_int("width_chars"));
 543     return widget;
 544 }
 545
 546 void filechooser_param_control::send_configure(const char *key, const char *value)
 547 {
 548     // cout << "send conf " << key << endl;
 549     if (attribs["key"] == key)
 550     {
 551         gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(filechooser), value);
 552     }
 553 }
 554
 555 void filechooser_param_control::filechooser_value_changed(GtkWidget *widget, gpointer value)
 556 {
 557     filechooser_param_control *ctl = (filechooser_param_control *)value;
 558     const char *filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(ctl->filechooser));
 559     if (filename)
 560         ctl->gui->plugin->configure(ctl->attribs["key"].c_str(), filename);
 561 }
 562
 563 // line graph
 564
 565 void line_graph_param_control::on_idle()
 566 {
 567     if (get_int("refresh", 0))
 568         set();
 569 }
 570
 571 GtkWidget *line_graph_param_control::create(plugin_gui *_gui, int _param_no)
 572 {
 573     gui = _gui;
 574     param_no = _param_no;
 575     last_generation = -1;
 576     // const parameter_properties &props = get_props();
 577
 578     widget = calf_line_graph_new ();
 579     CalfLineGraph *clg = CALF_LINE_GRAPH(widget);
 580     widget->requisition.width = get_int("width", 40);
 581     widget->requisition.height = get_int("height", 40);
 582     calf_line_graph_set_square(clg, get_int("square", 0));
 583     clg->source = gui->plugin->get_line_graph_iface();
 584     clg->source_id = param_no;
 585
 586     return widget;
 587 }
 588
 589 void line_graph_param_control::set()
 590 {
 591     GtkWidget *tw = gtk_widget_get_toplevel(widget);
 592     if (tw && GTK_WIDGET_TOPLEVEL(tw) && widget->window)
 593     {
 594         int ws = gdk_window_get_state(widget->window);
 595         if (ws & (GDK_WINDOW_STATE_WITHDRAWN | GDK_WINDOW_STATE_ICONIFIED))
 596             return;
 597         last_generation = calf_line_graph_update_if(CALF_LINE_GRAPH(widget), last_generation);
 598     }
 599 }
 600
 601 line_graph_param_control::~line_graph_param_control()
 602 {
 603 }
 604
 605 /******************************** GUI proper ********************************/
 606
 607 plugin_gui::plugin_gui(plugin_gui_window *_window)
 608 : window(_window)
 609 {
 610
 611 }
 612
 613 static void window_destroyed(GtkWidget *window, gpointer data)
 614 {
 615     delete (plugin_gui_window *)data;
 616 }
 617
 618 static void action_destroy_notify(gpointer data)
 619 {
 620     delete (activate_preset_params *)data;
 621 }
 622
 623 void control_base::require_attribute(const char *name)
 624 {
 625     if (attribs.count(name) == 0) {
 626         g_error("Missing attribute: %s", name);
 627     }
 628 }
 629
 630 void control_base::require_int_attribute(const char *name)
 631 {
 632     if (attribs.count(name) == 0) {
 633         g_error("Missing attribute: %s", name);
 634     }
 635     if (attribs[name].empty() || attribs[name].find_first_not_of("0123456789") != string::npos) {
 636         g_error("Wrong data type on attribute: %s (required integer)", name);
 637     }
 638 }
 639
 640 int control_base::get_int(const char *name, int def_value)
 641 {
 642     if (attribs.count(name) == 0)
 643         return def_value;
 644     const std::string &v = attribs[name];
 645     if (v.empty() || v.find_first_not_of("-+0123456789") != string::npos)
 646         return def_value;
 647     return atoi(v.c_str());
 648 }
 649
 650 float control_base::get_float(const char *name, float def_value)
 651 {
 652     if (attribs.count(name) == 0)
 653         return def_value;
 654     const std::string &v = attribs[name];
 655     if (v.empty() || v.find_first_not_of("-+0123456789.") != string::npos)
 656         return def_value;
 657     stringstream ss(v);
 658     float value;
 659     ss >> value;
 660     return value;
 661 }
 662
 663 /******************************** GtkTable container ********************************/
 664
 665 GtkWidget *table_container::create(plugin_gui *_gui, const char *element, xml_attribute_map &attributes)
 666 {
 667     require_int_attribute("rows");
 668     require_int_attribute("cols");
 669     GtkWidget *table = gtk_table_new(get_int("rows", 1), get_int("cols", 1), false);
 670     container = GTK_CONTAINER(table);
 671     return table;
 672 }
 673
 674 void table_container::add(GtkWidget *widget, control_base *base)
 675 {
 676     base->require_int_attribute("attach-x");
 677     base->require_int_attribute("attach-y");
 678     int x = base->get_int("attach-x"), y = base->get_int("attach-y");
 679     int w = base->get_int("attach-w", 1), h = base->get_int("attach-h", 1);
 680     int shrinkx = base->get_int("shrink-x", 0);
 681     int shrinky = base->get_int("shrink-y", 0);
 682     int fillx = (base->get_int("fill-x", !shrinkx) ? GTK_FILL : 0) | (base->get_int("expand-x", !shrinkx) ? GTK_EXPAND : 0) | (shrinkx ? GTK_SHRINK : 0);
 683     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);
 684     int padx = base->get_int("pad-x", 2);
 685     int pady = base->get_int("pad-y", 2);
 686     gtk_table_attach(GTK_TABLE(container), widget, x, x + w, y, y + h, (GtkAttachOptions)fillx, (GtkAttachOptions)filly, padx, pady);
 687 }
 688
 689 /******************************** alignment contaner ********************************/
 690
 691 GtkWidget *alignment_container::create(plugin_gui *_gui, const char *element, xml_attribute_map &attributes)
 692 {
 693     GtkWidget *align = 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));
 694     container = GTK_CONTAINER(align);
 695     return align;
 696 }
 697
 698 /******************************** GtkFrame contaner ********************************/
 699
 700 GtkWidget *frame_container::create(plugin_gui *_gui, const char *element, xml_attribute_map &attributes)
 701 {
 702     GtkWidget *frame = gtk_frame_new(attribs["label"].c_str());
 703     container = GTK_CONTAINER(frame);
 704     return frame;
 705 }
 706
 707 /******************************** GtkBox type of containers ********************************/
 708
 709 void box_container::add(GtkWidget *w, control_base *base)
 710 {
 711     gtk_container_add_with_properties(container, w, "expand", get_int("expand", 1), "fill", get_int("fill", 1), NULL);
 712 }
 713
 714 /******************************** GtkHBox container ********************************/
 715
 716 GtkWidget *hbox_container::create(plugin_gui *_gui, const char *element, xml_attribute_map &attributes)
 717 {
 718     GtkWidget *hbox = gtk_hbox_new(false, get_int("spacing", 2));
 719     container = GTK_CONTAINER(hbox);
 720     return hbox;
 721 }
 722
 723 /******************************** GtkVBox container ********************************/
 724
 725 GtkWidget *vbox_container::create(plugin_gui *_gui, const char *element, xml_attribute_map &attributes)
 726 {
 727     GtkWidget *vbox = gtk_vbox_new(false, get_int("spacing", 2));
 728     container = GTK_CONTAINER(vbox);
 729     return vbox;
 730 }
 731
 732 /******************************** GtkNotebook container ********************************/
 733
 734 GtkWidget *notebook_container::create(plugin_gui *_gui, const char *element, xml_attribute_map &attributes)
 735 {
 736     GtkWidget *nb = gtk_notebook_new();
 737     container = GTK_CONTAINER(nb);
 738     return nb;
 739 }
 740
 741 void notebook_container::add(GtkWidget *w, control_base *base)
 742 {
 743     gtk_notebook_append_page(GTK_NOTEBOOK(container), w, gtk_label_new_with_mnemonic(base->attribs["page"].c_str()));
 744 }
 745
 746 /******************************** GtkNotebook container ********************************/
 747
 748 GtkWidget *scrolled_container::create(plugin_gui *_gui, const char *element, xml_attribute_map &attributes)
 749 {
 750     GtkAdjustment *horiz = NULL, *vert = NULL;
 751     int width = get_int("width", 0), height = get_int("height", 0);
 752     if (width)
 753         horiz = GTK_ADJUSTMENT(gtk_adjustment_new(get_int("x", 0), 0, width, get_int("step-x", 1), get_int("page-x", width / 10), 100));
 754     if (height)
 755         vert = GTK_ADJUSTMENT(gtk_adjustment_new(get_int("y", 0), 0, width, get_int("step-y", 1), get_int("page-y", height / 10), 10));
 756     GtkWidget *sw = gtk_scrolled_window_new(horiz, vert);
 757     gtk_widget_set_size_request(sw, get_int("req-x", -1), get_int("req-y", -1));
 758     container = GTK_CONTAINER(sw);
 759     return sw;
 760 }
 761
 762 void scrolled_container::add(GtkWidget *w, control_base *base)
 763 {
 764     gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(container), w);
 765 }
 766
 767 /******************************** GUI proper ********************************/
 768
 769 param_control *plugin_gui::create_control_from_xml(const char *element, const char *attributes[])
 770 {
 771     if (!strcmp(element, "knob"))
 772         return new knob_param_control;
 773     if (!strcmp(element, "hscale"))
 774         return new hscale_param_control;
 775     if (!strcmp(element, "vscale"))
 776         return new vscale_param_control;
 777     if (!strcmp(element, "combo"))
 778         return new combo_box_param_control;
 779     if (!strcmp(element, "toggle"))
 780         return new toggle_param_control;
 781     if (!strcmp(element, "spin"))
 782         return new spin_param_control;
 783     if (!strcmp(element, "button"))
 784         return new button_param_control;
 785     if (!strcmp(element, "label"))
 786         return new label_param_control;
 787     if (!strcmp(element, "value"))
 788         return new value_param_control;
 789     if (!strcmp(element, "vumeter"))
 790         return new vumeter_param_control;
 791     if (!strcmp(element, "line-graph"))
 792         return new line_graph_param_control;
 793     if (!strcmp(element, "keyboard"))
 794         return new keyboard_param_control;
 795     if (!strcmp(element, "curve"))
 796         return new curve_param_control;
 797     if (!strcmp(element, "led"))
 798         return new led_param_control;
 799     if (!strcmp(element, "entry"))
 800         return new entry_param_control;
 801     if (!strcmp(element, "filechooser"))
 802         return new filechooser_param_control;
 803     return NULL;
 804 }
 805
 806 control_container *plugin_gui::create_container_from_xml(const char *element, const char *attributes[])
 807 {
 808     if (!strcmp(element, "table"))
 809         return new table_container;
 810     if (!strcmp(element, "vbox"))
 811         return new vbox_container;
 812     if (!strcmp(element, "hbox"))
 813         return new hbox_container;
 814     if (!strcmp(element, "align"))
 815         return new alignment_container;
 816     if (!strcmp(element, "frame"))
 817         return new frame_container;
 818     if (!strcmp(element, "notebook"))
 819         return new notebook_container;
 820     if (!strcmp(element, "scrolled"))
 821         return new scrolled_container;
 822     return NULL;
 823 }
 824
 825 void plugin_gui::xml_element_start(void *data, const char *element, const char *attributes[])
 826 {
 827     plugin_gui *gui = (plugin_gui *)data;
 828     gui->xml_element_start(element, attributes);
 829 }
 830
 831 void plugin_gui::xml_element_start(const char *element, const char *attributes[])
 832 {
 833     if (ignore_stack) {
 834         ignore_stack++;
 835         return;
 836     }
 837     control_base::xml_attribute_map xam;
 838     while(*attributes)
 839     {
 840         xam[attributes[0]] = attributes[1];
 841         attributes += 2;
 842     }
 843
 844     if (!strcmp(element, "if"))
 845     {
 846         if (!xam.count("cond") || xam["cond"].empty())
 847         {
 848             g_error("Incorrect <if cond=\"[!]symbol\"> element");
 849         }
 850         string cond = xam["cond"];
 851         bool state = true;
 852         if (cond.substr(0, 1) == "!") {
 853             state = false;
 854             cond.erase(0, 1);
 855         }
 856         if (window->main->check_condition(cond.c_str()) == state)
 857             return;
 858         ignore_stack = 1;
 859         return;
 860     }
 861     control_container *cc = create_container_from_xml(element, attributes);
 862     if (cc != NULL)
 863     {
 864         cc->attribs = xam;
 865         cc->create(this, element, xam);
 866         gtk_container_set_border_width(cc->container, cc->get_int("border"));
 867
 868         container_stack.push_back(cc);
 869         current_control = NULL;
 870         return;
 871     }
 872     if (!container_stack.empty())
 873     {
 874         current_control = create_control_from_xml(element, attributes);
 875         if (current_control)
 876         {
 877             current_control->attribs = xam;
 878             int param_no = -1;
 879             if (xam.count("param"))
 880             {
 881                 map<string, int>::iterator it = param_name_map.find(xam["param"]);
 882                 if (it == param_name_map.end())
 883                     g_error("Unknown parameter %s", xam["param"].c_str());
 884                 else
 885                     param_no = it->second;
 886             }
 887             current_control->create(this, param_no);
 888             current_control->init_xml(element);
 889             current_control->set();
 890             current_control->hook_params();
 891             return;
 892         }
 893     }
 894     g_error("Unxpected element %s in GUI definition\n", element);
 895 }
 896
 897 void plugin_gui::xml_element_end(void *data, const char *element)
 898 {
 899     plugin_gui *gui = (plugin_gui *)data;
 900     if (gui->ignore_stack) {
 901         gui->ignore_stack--;
 902         return;
 903     }
 904     if (!strcmp(element, "if"))
 905     {
 906         return;
 907     }
 908     if (gui->current_control)
 909     {
 910         (*gui->container_stack.rbegin())->add(gui->current_control->widget, gui->current_control);
 911         gui->current_control = NULL;
 912         return;
 913     }
 914     unsigned int ss = gui->container_stack.size();
 915     if (ss > 1) {
 916         gui->container_stack[ss - 2]->add(GTK_WIDGET(gui->container_stack[ss - 1]->container), gui->container_stack[ss - 1]);
 917     }
 918     else
 919         gui->top_container = gui->container_stack[0];
 920     gui->container_stack.pop_back();
 921 }
 922
 923
 924 GtkWidget *plugin_gui::create_from_xml(plugin_ctl_iface *_plugin, const char *xml)
 925 {
 926     current_control = NULL;
 927     top_container = NULL;
 928     parser = XML_ParserCreate("UTF-8");
 929     plugin = _plugin;
 930     container_stack.clear();
 931     ignore_stack = 0;
 932
 933     param_name_map.clear();
 934     int size = plugin->get_param_count();
 935     for (int i = 0; i < size; i++)
 936         param_name_map[plugin->get_param_props(i)->short_name] = i;
 937
 938     XML_SetUserData(parser, this);
 939     XML_SetElementHandler(parser, xml_element_start, xml_element_end);
 940     XML_Status status = XML_Parse(parser, xml, strlen(xml), 1);
 941     if (status == XML_STATUS_ERROR)
 942     {
 943         g_error("Parse error: %s in XML", XML_ErrorString(XML_GetErrorCode(parser)));
 944     }
 945
 946     XML_ParserFree(parser);
 947     return GTK_WIDGET(top_container->container);
 948 }
 949
 950 void plugin_gui::send_configure(const char *key, const char *value)
 951 {
 952     // XXXKF this should really be replaced by a separate list of SCI-capable param controls
 953     for (unsigned int i = 0; i < params.size(); i++)
 954     {
 955         assert(params[i] != NULL);
 956         send_configure_iface *sci = dynamic_cast<send_configure_iface *>(params[i]);
 957         if (sci)
 958             sci->send_configure(key, value);
 959     }
 960 }
 961
 962 void plugin_gui::on_idle()
 963 {
 964     for (unsigned int i = 0; i < params.size(); i++)
 965     {
 966         parameter_properties &props = *plugin->get_param_props(params[i]->param_no);
 967         bool is_output = (props.flags & PF_PROP_OUTPUT) != 0;
 968         if (is_output) {
 969             params[i]->set();
 970         }
 971         params[i]->on_idle();
 972     }
 973     // XXXKF iterate over par2ctl, too...
 974 }
 975
 976 void plugin_gui::refresh()
 977 {
 978     for (unsigned int i = 0; i < params.size(); i++)
 979     {
 980         params[i]->set();
 981         send_configure_iface *sci = dynamic_cast<send_configure_iface *>(params[i]);
 982         if (sci)
 983             plugin->send_configures(sci);
 984     }
 985 }
 986
 987 void plugin_gui::refresh(int param_no, param_control *originator)
 988 {
 989     std::multimap<int, param_control *>::iterator it = par2ctl.find(param_no);
 990     while(it != par2ctl.end() && it->first == param_no)
 991     {
 992         if (it->second != originator)
 993             it->second->set();
 994         it++;
 995     }
 996 }
 997
 998 void plugin_gui::set_param_value(int param_no, float value, param_control *originator)
 999 {
1000     plugin->set_param_value(param_no, value);
1001     refresh(param_no);
1002 }
1003
1004 plugin_gui::~plugin_gui()
1005 {
1006     for (std::vector<param_control *>::iterator i = params.begin(); i != params.end(); i++)
1007     {
1008         delete *i;
1009     }
1010 }
1011
1012
1013 /******************************* Actions **************************************************/
1014
1015 static void store_preset_action(GtkAction *action, plugin_gui_window *gui_win)
1016 {
1017     store_preset(GTK_WINDOW(gui_win->toplevel), gui_win->gui);
1018 }
1019
1020 static const GtkActionEntry actions[] = {
1021     { "PresetMenuAction", "", "_Preset", NULL, "Preset operations", NULL },
1022     { "BuiltinPresetMenuAction", "", "_Built-in", NULL, "Built-in (factory) presets", NULL },
1023     { "UserPresetMenuAction", "", "_User", NULL, "User (your) presets", NULL },
1024     { "CommandMenuAction", "", "_Command", NULL, "Plugin-related commands", NULL },
1025     { "store-preset", "", "Store preset", NULL, "Store a current setting as preset", (GCallback)store_preset_action },
1026 };
1027
1028 /***************************** GUI window ********************************************/
1029
1030 static const char *ui_xml =
1031 "<ui>\n"
1032 "  <menubar>\n"
1033 "    <menu action=\"PresetMenuAction\">\n"
1034 "      <menuitem action=\"store-preset\"/>\n"
1035 "      <separator/>\n"
1036 "      <placeholder name=\"builtin_presets\"/>\n"
1037 "      <separator/>\n"
1038 "      <placeholder name=\"user_presets\"/>\n"
1039 "    </menu>\n"
1040 "    <placeholder name=\"commands\"/>\n"
1041 "  </menubar>\n"
1042 "</ui>\n"
1043 ;
1044
1045 static const char *general_preset_pre_xml =
1046 "<ui>\n"
1047 "  <menubar>\n"
1048 "    <menu action=\"PresetMenuAction\">\n";
1049
1050 static const char *builtin_preset_pre_xml =
1051 // "      <menu action=\"BuiltinPresetMenuAction\">\n"
1052 "        <placeholder name=\"builtin_presets\">\n";
1053
1054 static const char *user_preset_pre_xml =
1055 // "      <menu action=\"UserPresetMenuAction\">\n"
1056 "        <placeholder name=\"user_presets\">\n";
1057
1058 static const char *preset_post_xml =
1059 "        </placeholder>\n"
1060 // "      </menu>\n"
1061 "    </menu>\n"
1062 "  </menubar>\n"
1063 "</ui>\n"
1064 ;
1065
1066 static const char *command_pre_xml =
1067 "<ui>\n"
1068 "  <menubar>\n"
1069 "    <placeholder name=\"commands\">\n"
1070 "      <menu action=\"CommandMenuAction\">\n";
1071
1072 static const char *command_post_xml =
1073 "      </menu>\n"
1074 "    </placeholder>\n"
1075 "  </menubar>\n"
1076 "</ui>\n"
1077 ;
1078
1079 plugin_gui_window::plugin_gui_window(main_window_iface *_main)
1080 {
1081     toplevel = NULL;
1082     ui_mgr = NULL;
1083     std_actions = NULL;
1084     builtin_preset_actions = NULL;
1085     user_preset_actions = NULL;
1086     command_actions = NULL;
1087     main = _main;
1088     assert(main);
1089 }
1090
1091 string plugin_gui_window::make_gui_preset_list(GtkActionGroup *grp, bool builtin, char &ch)
1092 {
1093     string preset_xml = string(general_preset_pre_xml) + (builtin ? builtin_preset_pre_xml : user_preset_pre_xml);
1094     preset_vector &pvec = (builtin ? get_builtin_presets() : get_user_presets()).presets;
1095     GtkActionGroup *preset_actions = builtin ? builtin_preset_actions : user_preset_actions;
1096     for (unsigned int i = 0; i < pvec.size(); i++)
1097     {
1098         if (pvec[i].plugin != gui->effect_name)
1099             continue;
1100         stringstream ss;
1101         ss << (builtin ? "builtin_preset" : "user_preset") << i;
1102         preset_xml += "          <menuitem name=\"" + pvec[i].name+"\" action=\""+ss.str()+"\"/>\n";
1103         if (ch != ' ' && ++ch == ':')
1104             ch = 'A';
1105         if (ch > 'Z')
1106             ch = ' ';
1107
1108         string sv = ss.str();
1109         string prefix = ch == ' ' ? string() : string("_")+ch+" ";
1110         string name = prefix + pvec[i].name;
1111         GtkActionEntry ae = { sv.c_str(), NULL, name.c_str(), NULL, NULL, (GCallback)activate_preset };
1112         gtk_action_group_add_actions_full(preset_actions, &ae, 1, (gpointer)new activate_preset_params(gui, i, builtin), action_destroy_notify);
1113     }
1114     preset_xml += preset_post_xml;
1115     return preset_xml;
1116 }
1117
1118 string plugin_gui_window::make_gui_command_list(GtkActionGroup *grp)
1119 {
1120     string command_xml = command_pre_xml;
1121     plugin_command_info *ci = gui->plugin->get_commands();
1122     if (!ci)
1123         return "";
1124     for(int i = 0; ci->name; i++, ci++)
1125     {
1126         stringstream ss;
1127         ss << "          <menuitem name=\"" << ci->name << "\" action=\"" << ci->label << "\"/>\n";
1128
1129         GtkActionEntry ae = { ci->label, NULL, ci->name, NULL, ci->description, (GCallback)activate_command };
1130         gtk_action_group_add_actions_full(command_actions, &ae, 1, (gpointer)new activate_command_params(gui, i), action_destroy_notify);
1131         command_xml += ss.str();
1132     }
1133     command_xml += command_post_xml;
1134     return command_xml;
1135 }
1136
1137 void plugin_gui_window::fill_gui_presets(bool builtin, char &ch)
1138 {
1139     GtkActionGroup *&preset_actions = builtin ? builtin_preset_actions : user_preset_actions;
1140     if(preset_actions) {
1141         gtk_ui_manager_remove_action_group(ui_mgr, preset_actions);
1142         preset_actions = NULL;
1143     }
1144
1145     if (builtin)
1146         builtin_preset_actions = gtk_action_group_new("builtin_presets");
1147     else
1148         user_preset_actions = gtk_action_group_new("user_presets");
1149     string preset_xml = make_gui_preset_list(preset_actions, builtin, ch);
1150     gtk_ui_manager_insert_action_group(ui_mgr, preset_actions, 0);
1151     GError *error = NULL;
1152     gtk_ui_manager_add_ui_from_string(ui_mgr, preset_xml.c_str(), -1, &error);
1153 }
1154
1155 gboolean plugin_gui_window::on_idle(void *data)
1156 {
1157     plugin_gui_window *self = (plugin_gui_window *)data;
1158     self->gui->on_idle();
1159     return TRUE;
1160 }
1161
1162 void plugin_gui_window::create(plugin_ctl_iface *_jh, const char *title, const char *effect)
1163 {
1164     toplevel = GTK_WINDOW(gtk_window_new (GTK_WINDOW_TOPLEVEL));
1165     gtk_window_set_default_icon_name("calf");
1166     gtk_window_set_type_hint(toplevel, GDK_WINDOW_TYPE_HINT_DIALOG);
1167     GtkVBox *vbox = GTK_VBOX(gtk_vbox_new(false, 5));
1168
1169     GtkRequisition req, req2;
1170     gtk_window_set_title(GTK_WINDOW (toplevel), title);
1171     gtk_container_add(GTK_CONTAINER(toplevel), GTK_WIDGET(vbox));
1172
1173     gui = new plugin_gui(this);
1174     gui->effect_name = effect;
1175
1176     ui_mgr = gtk_ui_manager_new();
1177     std_actions = gtk_action_group_new("default");
1178     gtk_action_group_add_actions(std_actions, actions, sizeof(actions)/sizeof(actions[0]), this);
1179     GError *error = NULL;
1180     gtk_ui_manager_insert_action_group(ui_mgr, std_actions, 0);
1181     gtk_ui_manager_add_ui_from_string(ui_mgr, ui_xml, -1, &error);
1182
1183     command_actions = gtk_action_group_new("commands");
1184
1185     char ch = '0';
1186     fill_gui_presets(true, ch);
1187     fill_gui_presets(false, ch);
1188
1189     gtk_box_pack_start(GTK_BOX(vbox), gtk_ui_manager_get_widget(ui_mgr, "/ui/menubar"), false, false, 0);
1190
1191     // determine size without content
1192     gtk_widget_show_all(GTK_WIDGET(vbox));
1193     gtk_widget_size_request(GTK_WIDGET(vbox), &req2);
1194     // printf("size request %dx%d\n", req2.width, req2.height);
1195
1196     GtkWidget *container;
1197     const char *xml = _jh->get_gui_xml();
1198     assert(xml);
1199     container = gui->create_from_xml(_jh, xml);
1200
1201     string command_xml = make_gui_command_list(command_actions);
1202     gtk_ui_manager_insert_action_group(ui_mgr, command_actions, 0);
1203     gtk_ui_manager_add_ui_from_string(ui_mgr, command_xml.c_str(), -1, &error);
1204
1205     GtkWidget *sw = gtk_scrolled_window_new(NULL, NULL);
1206     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
1207     gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(sw), GTK_SHADOW_NONE);
1208     gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(sw), container);
1209
1210     gtk_box_pack_start(GTK_BOX(vbox), sw, true, true, 0);
1211
1212     gtk_widget_show_all(GTK_WIDGET(sw));
1213     gtk_widget_size_request(container, &req);
1214     int wx = max(req.width + 10, req2.width);
1215     int wy = req.height + req2.height + 10;
1216     // printf("size request %dx%d\n", req.width, req.height);
1217     // printf("resize to %dx%d\n", max(req.width + 10, req2.width), req.height + req2.height + 10);
1218     gtk_window_set_default_size(GTK_WINDOW(toplevel), wx, wy);
1219     gtk_window_resize(GTK_WINDOW(toplevel), wx, wy);
1220     //gtk_widget_set_size_request(GTK_WIDGET(toplevel), max(req.width + 10, req2.width), req.height + req2.height + 10);
1221     // printf("size set %dx%d\n", wx, wy);
1222     // gtk_scrolled_window_set_vadjustment(GTK_SCROLLED_WINDOW(sw), GTK_ADJUSTMENT(gtk_adjustment_new(0, 0, req.height, 20, 100, 100)));
1223     gtk_signal_connect (GTK_OBJECT (toplevel), "destroy", G_CALLBACK (window_destroyed), (plugin_gui_window *)this);
1224     main->set_window(gui->plugin, this);
1225
1226     source_id = g_timeout_add_full(G_PRIORITY_LOW, 1000/30, on_idle, this, NULL); // 30 fps should be enough for everybody
1227     gtk_ui_manager_ensure_update(ui_mgr);
1228     gui->plugin->send_configures(gui);
1229 }
1230
1231 void plugin_gui_window::close()
1232 {
1233     if (source_id)
1234         g_source_remove(source_id);
1235     source_id = 0;
1236     gtk_widget_destroy(GTK_WIDGET(toplevel));
1237 }
1238
1239 plugin_gui_window::~plugin_gui_window()
1240 {
1241     if (source_id)
1242         g_source_remove(source_id);
1243     main->set_window(gui->plugin, NULL);
1244     delete gui;
1245 }
1246
1247 void calf_plugins::activate_command(GtkAction *action, activate_command_params *params)
1248 {
1249     plugin_gui *gui = params->gui;
1250     gui->plugin->execute(params->function_idx);
1251     gui->refresh();
1252 }
1253
1254