src/pianoroll.cpp

   1 /*
   2    Epichord - a midi sequencer
   3    Copyright (C) 2008  Evan Rinehart
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU General Public License
   7    as published by the Free Software Foundation; either version 2
   8    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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to
  17
  18    The Free Software Foundation, Inc.
  19    51 Franklin Street, Fifth Floor
  20    Boston, MA  02110-1301, USA
  21 */
  22
  23 #include <vector>
  24 #include <fltk/Group.h>
  25 #include <fltk/Widget.h>
  26
  27 #include <fltk/Scrollbar.h>
  28
  29 #include <fltk/events.h>
  30
  31 #include <stdio.h>
  32 #include <unistd.h>
  33 #include "ui.h"
  34
  35 #include "util.h"
  36
  37 #include "backend.h"
  38
  39 #include "uihelper.h"
  40
  41 extern UI* ui;
  42 extern std::vector<track*> tracks;
  43
  44 extern struct conf config;
  45
  46 using namespace fltk;
  47
  48 #define SWAP(X,Y) tmp=X; X=Y; Y=tmp;
  49
  50 PianoRoll::PianoRoll(int x, int y, int w, int h, const char* label = 0) : fltk::Widget(x, y, w, h, label) {
  51   wkeyh = 12;
  52   bkeyh = 7;
  53   cur_seqpat = NULL;
  54
  55   zoom = 15;
  56   zoom_n = 3;
  57
  58   q_tick = 32;
  59
  60   box_flag = 0;
  61
  62   move_toffset = 0;
  63
  64   insert_flag = 0;
  65   move_flag = 0;
  66   delete_flag=0;
  67   lresize_flag = 0;
  68   rresize_flag = 0;
  69
  70   resize_arrow = 0;
  71   resize_e = NULL;
  72   resize_handle_width = 4;
  73
  74   fakeh = wkeyh*75;
  75   fakehmin = wkeyh*75;
  76   if(fakeh < h){fakeh = h;}
  77
  78   scrollx=0;
  79   scrolly=0;
  80 }
  81
  82 int PianoRoll::handle(int event){
  83   Command* c;
  84   pattern* p;
  85   mevent* e;
  86
  87   int X = event_x();
  88   int Y = event_y();
  89
  90   switch(event){
  91     case fltk::ENTER:
  92       return 1;
  93     case fltk::FOCUS:
  94       return 1;
  95     case fltk::SHORTCUT:
  96       if(event_key()==fltk::DeleteKey){
  97         apply_delete();
  98         delete_flag = 0;
  99         redraw();
 100         resize_arrow = 0;
 101         ui->event_edit->redraw();
 102         return 1;
 103       }
 104       if(event_state(CTRL) && event_key()=='c'){
 105         //printf("roll copy\n");
 106         return 1;
 107       }
 108       if(zoom_out_key(event_key(),event_state())){
 109         if(zoom_n > 1){
 110           zoom_n--;
 111           set_zoom(30*(1<<zoom_n)/16);
 112           ui->pattern_timeline->zoom = zoom;
 113           ui->pattern_timeline->update(get_play_position());
 114           ui->pattern_timeline->redraw();
 115           ui->event_edit->zoom = zoom;
 116           ui->event_edit->redraw();
 117         }
 118         redraw();
 119         return 1;
 120       }
 121       if(zoom_in_key(event_key(),event_state())){
 122         if(zoom_n < 8){
 123           zoom_n++;
 124           set_zoom(30*(1<<zoom_n)/16);
 125           ui->pattern_timeline->zoom = zoom;
 126           ui->pattern_timeline->update(get_play_position());
 127           ui->pattern_timeline->redraw();
 128           ui->event_edit->zoom = zoom;
 129           ui->event_edit->redraw();
 130         }
 131         redraw();
 132         return 1;
 133       }
 134       return 0;
 135     case fltk::PUSH:
 136       take_focus();
 137       e = over_note();
 138       if(event_button()==1){//left mouse
 139         if(e==NULL){//new note init
 140           if(event_state()&fltk::SHIFT){//begin box
 141             box_flag = 1;
 142             box_x1=X;
 143             box_x2=X;
 144             box_y1=Y;
 145             box_y2=Y;
 146             box_t1=xpix2tick(X+scrollx);
 147             box_t2=box_t1;
 148             box_n1=ypix2note(Y+scrolly,1);
 149             box_n2=box_n1;
 150           }
 151           else{//begin insert
 152             insert_flag = 1;
 153             insert_torig = quantize(xpix2tick(X+scrollx));
 154             insert_toffset = q_tick;
 155             //new_orig_t = new_left_t;
 156             insert_note = ypix2note(Y+scrolly,1);
 157
 158             last_note = insert_note;
 159             if(config.playinsert){
 160               ui->keyboard->play_note(last_note,0);
 161             }
 162           }
 163
 164         }
 165         else{
 166
 167           if(!(e->selected) && !(event_state()&fltk::SHIFT)){
 168             unselect_all();
 169           }
 170           e->selected = 1;
 171           resize_arrow_color = fltk::color(128,128,0);
 172
 173           if(over_rhandle(e)){//resize
 174             rresize_flag = 1;
 175             rresize_torig = e->tick+e->dur;
 176             rresize_toffset = 0;
 177           }
 178           else if(over_lhandle(e)){//resize move
 179             lresize_flag = 1;
 180             lresize_torig = e->tick;
 181             lresize_toffset = 0;
 182           }
 183           else{//begin move
 184             move_flag = 1;
 185
 186             move_torig = e->tick;
 187             move_qoffset = e->tick - quantize(e->tick);
 188
 189             move_toffset = -move_qoffset;
 190
 191             //move_offset = quantize(xpix2tick(X)) - move_torig - move_qoffset;
 192             //move_toffset = 0;
 193             move_offset = X - tick2xpix(e->tick);
 194             move_norig = ypix2note(Y+scrolly,1);
 195             move_noffset = 0;
 196
 197             last_note = move_norig;
 198             if(config.playmove){
 199               ui->keyboard->play_note(last_note,0);
 200             }
 201           }
 202         }
 203       }
 204       else if(event_button()==2){//middle mouse
 205         //button initiates paste
 206       }
 207       else if(event_button()==3){//right mouse
 208         if(e==NULL){
 209           unselect_all();
 210
 211           ui->event_edit->redraw();
 212         }
 213         else{//set up for deletion
 214           if(!(e->selected) && !(event_state()&fltk::SHIFT)){
 215             unselect_all();
 216           }
 217           e->selected = 1;
 218           delete_flag = 1;
 219           resize_arrow_color = fltk::color(120,60,58);
 220         }
 221
 222       }
 223       redraw();
 224       return 1;
 225     case fltk::DRAG:
 226
 227       if(box_flag){
 228         box_x2 = X;
 229         box_y2 = Y;
 230         box_t2 = xpix2tick(X+scrollx);
 231         box_n2 = ypix2note(Y+scrolly,1);
 232       }
 233       else if(insert_flag){
 234         insert_toffset = quantize(xpix2tick(X+scrollx)+q_tick) - insert_torig;
 235         if(insert_toffset<=0){
 236           insert_toffset -= q_tick;
 237         }
 238         insert_note = ypix2note(Y+scrolly,1);
 239         if(insert_note != last_note){
 240           if(config.playinsert){//play on insert
 241             ui->keyboard->release_note(last_note,0);
 242             ui->keyboard->play_note(insert_note,0);
 243           }
 244           last_note = insert_note;
 245         }
 246       }
 247       else if(move_flag){
 248         move_toffset = quantize(xpix2tick(X - move_offset)) - move_torig;
 249         move_noffset = ypix2note(Y+scrolly,1) - move_norig;
 250         int N = move_norig+move_noffset;
 251         if(N != last_note){
 252           if(config.playmove){//play on move
 253             ui->keyboard->release_note(last_note,0);
 254             ui->keyboard->play_note(N,0);
 255           }
 256           last_note = N;
 257         }
 258       }
 259       else if(rresize_flag){
 260         rresize_toffset = quantize(xpix2tick(X+scrollx))+q_tick-rresize_torig;
 261       }
 262       else if(lresize_flag){
 263         lresize_toffset = quantize(xpix2tick(X+scrollx)) - lresize_torig;
 264       }
 265       redraw();
 266       return 1;
 267     case fltk::RELEASE:
 268       e = over_note();
 269       if(event_button()==1){
 270         if(box_flag){
 271           apply_box();
 272           ui->event_edit->redraw();
 273           box_flag=0;
 274         }
 275         else if(rresize_flag){
 276           apply_rresize();
 277           rresize_flag = 0;
 278           resize_arrow = 0;
 279           ui->event_edit->redraw();
 280         }
 281         else if(lresize_flag){
 282           apply_lresize();
 283           lresize_flag = 0;
 284           resize_arrow = 0;
 285           ui->event_edit->redraw();
 286         }
 287         else if(insert_flag){
 288           apply_insert();
 289
 290           insert_flag = 0;
 291
 292           ui->keyboard->release_note(insert_note,0);
 293           ui->keyboard->redraw();
 294           ui->event_edit->has[0]=1;
 295           ui->event_edit->has[1]=1;
 296           ui->event_edit->redraw();
 297           ui->event_menu->redraw();
 298         }
 299         else if(move_flag){
 300           apply_move();
 301           move_flag = 0;
 302
 303           midi_track_off(cur_seqpat->track);
 304           ui->keyboard->release_note(last_note,0);
 305           ui->keyboard->release_note(move_norig+move_noffset,0);
 306           ui->keyboard->redraw();
 307           ui->event_edit->redraw();
 308         }
 309         insert_flag=0;
 310         move_flag=0;
 311       }
 312       if(event_button()==3){
 313         mevent* over_n = over_note();
 314         if(delete_flag && over_n){
 315           if(over_n->selected){
 316             apply_delete();
 317             midi_track_off(cur_seqpat->track);
 318             ui->event_edit->redraw();
 319           }
 320         }
 321         delete_flag=0;
 322         resize_arrow = 0;
 323       }
 324       redraw();
 325
 326       return 1;
 327
 328     case fltk::MOVE:
 329       e = over_note();
 330       if(e){
 331         if(over_rhandle(e)){
 332           if(resize_e != e || resize_arrow != 1){
 333             if(e->selected){resize_arrow_color = fltk::color(128,128,0);}
 334             else{resize_arrow_color = fltk::color(95,58,119);}
 335             resize_e = e;
 336             resize_arrow = 1;
 337             resize_x = tick2xpix(e->tick + e->dur)-scrollx-resize_handle_width;
 338             resize_y = note2ypix(e->value1)-scrolly;
 339             redraw();
 340           }
 341         }
 342         else if(over_lhandle(e)){
 343           if(resize_e != e || resize_arrow != 1){
 344             if(e->selected){resize_arrow_color = fltk::color(128,128,0);}
 345             else{resize_arrow_color = fltk::color(95,58,119);}
 346             resize_e = e;
 347             resize_arrow = -1;
 348             resize_x = tick2xpix(e->tick)+1 - scrollx;
 349             resize_y = note2ypix(e->value1) - scrolly;
 350             redraw();
 351           }
 352         }
 353         else{
 354           if(resize_e != e || resize_arrow != 0){
 355             resize_e = e;
 356             resize_arrow = 0;
 357             redraw();
 358           }
 359         }
 360       }
 361       else{
 362         if(resize_arrow != 0){
 363           resize_arrow = 0;
 364           redraw();
 365         }
 366       }
 367
 368       return 1;
 369   }
 370   return 0;
 371 }
 372
 373 void PianoRoll::draw(){
 374
 375   fltk::push_clip(0,0,w(),h());
 376
 377   fltk::setcolor(fltk::GRAY05);
 378   fltk::fillrect(0,0,w(),h());
 379
 380   fltk::setcolor(fltk::GRAY20);
 381   for(int i=12-scrolly; i<h(); i+=12){
 382     if(i>=0){
 383       fltk::fillrect(0,i,w(),1);
 384     }
 385   }
 386   for(int i=zoom-scrollx; i<w(); i+=zoom){
 387     if(i>=0){
 388       fltk::fillrect(i,0,1,h());
 389     }
 390   }
 391
 392   fltk::setcolor(fltk::GRAY30);
 393   for(int i=12*5-scrolly; i<h(); i+=12*7){
 394     if(i>=0){
 395       fltk::fillrect(0,i,w(),1);
 396     }
 397   }
 398
 399   fltk::setcolor(fltk::GRAY50);
 400   for(int i=zoom*4-scrollx; i<w(); i+=zoom*4){
 401     if(i>=0){
 402       fltk::fillrect(i,0,1,h());
 403     }
 404   }
 405
 406   fltk::setcolor(fltk::WHITE);
 407   int M = config.beats_per_measure;
 408   for(int i=zoom*4*M-scrollx; i<w(); i+=zoom*4*M){
 409     if(i>=0){
 410       fltk::fillrect(i,0,1,h());
 411     }
 412   }
 413
 414   fltk::setcolor(fltk::color(128,0,0));
 415   int rightend = tick2xpix(cur_seqpat->dur)-scrollx;
 416   if(rightend >=0 && rightend < w()){
 417     fltk::fillrect(rightend,0,1,h());
 418   }
 419
 420   fltk::setcolor(fltk::color(128,128,0));
 421   fltk::fillrect(0,12*40-scrolly,w(),1);
 422
 423   int tmp;
 424   if(insert_flag){
 425     fltk::setcolor(fltk::BLUE);
 426     int T1 = insert_torig;
 427     int T2 = T1 + insert_toffset;
 428     if(T1>T2){SWAP(T1,T2);}
 429     int X = tick2xpix(T1)+1 - scrollx;
 430     int Y = note2ypix(insert_note) - scrolly;
 431     int W = tick2xpix(T2)-scrollx - X;
 432     fltk::fillrect(X,Y,W,11);
 433   }
 434
 435   if(move_flag){
 436     fltk::setcolor(fltk::MAGENTA);
 437     mevent* ptr = cur_seqpat->p->events->next;
 438     while(ptr){
 439       if(ptr->type == MIDI_NOTE_ON && ptr->selected){
 440         int X = tick2xpix(ptr->tick+move_toffset)+1-scrollx;
 441         int Y = note2ypix(ptr->value1+move_noffset)-scrolly;
 442         int W = tick2xpix(ptr->dur);
 443         fltk::fillrect(X,Y,W-1,1);
 444         fltk::fillrect(X,Y+11,W-1,1);
 445         fltk::fillrect(X,Y,1,11);
 446         fltk::fillrect(X+W-2,Y,1,11);
 447       }
 448       ptr=ptr->next;
 449     }
 450   }
 451
 452
 453
 454   //draw all notes
 455   mevent* e = cur_seqpat->p->events->next;
 456
 457   fltk::Color c1,c2,c3;
 458
 459   while(e){
 460     if(e->type == MIDI_NOTE_ON){
 461       //fltk::fillrect(tick2xpix(e->tick),note2ypix(e->value),e->dur,11);
 462
 463       int R1 = rresize_flag&&e->selected ? rresize_toffset : 0;
 464       int R2 = lresize_flag&&e->selected ? lresize_toffset : 0;
 465
 466       int T1 = e->tick + R2;
 467       int T2 = e->tick+e->dur + R1;
 468
 469       if(T1 >= T2-q_tick && e->selected){
 470         if(rresize_flag){
 471           T1 = e->tick;
 472           T2 = T1 + q_tick;
 473         }
 474         else if(lresize_flag){
 475           T2 = e->tick + e->dur;
 476           T1 = T2 - q_tick;
 477         }
 478       }
 479
 480       int X = tick2xpix(T1) + 1 - scrollx;
 481       int Y = note2ypix(e->value1) - scrolly;
 482
 483       int W = tick2xpix(T2)-scrollx - X;
 484       get_event_color(e,&c1,&c2,&c3);
 485
 486       if(!(X+W<0 || X > w())){
 487
 488         fltk::setcolor(c1);
 489         fltk::fillrect(X+1,Y+1,W-1,10);
 490
 491         fltk::setcolor(c2);
 492         fltk::fillrect(X,Y+11,W,1);
 493         fltk::fillrect(X+W-1,Y+1,1,11);
 494
 495         fltk::setcolor(c3);
 496         fltk::fillrect(X,Y,W,1);
 497         fltk::fillrect(X,Y,1,11);
 498       }
 499     }
 500     e=e->next;
 501   }
 502
 503
 504   if(!rresize_flag && !lresize_flag){
 505     if(resize_arrow > 0){
 506       setcolor(resize_arrow_color);
 507
 508       int W = resize_handle_width;
 509       int H = 12;
 510       int X = resize_x;
 511       int Y = resize_y;
 512
 513       addvertex(X,Y);
 514       addvertex(X,Y+H);
 515       addvertex(X+W,Y+H/2);
 516       fillpath();
 517     }
 518     else if(resize_arrow < 0){
 519       setcolor(resize_arrow_color);
 520
 521       int W = resize_handle_width;
 522       int H = 12;
 523       int X = resize_x;
 524       int Y = resize_y;
 525
 526       addvertex(X+W,Y);
 527       addvertex(X+W,Y+H);
 528       addvertex(X,Y+H/2);
 529       fillpath();
 530     }
 531   }
 532
 533
 534   if(box_flag){
 535     fltk::setcolor(fltk::GREEN);
 536     int X1,X2,Y1,Y2;
 537     if(box_x1>box_x2){
 538       X1=box_x2;
 539       X2=box_x1;
 540     }
 541     else{
 542       X1=box_x1;
 543       X2=box_x2;
 544     }
 545     if(box_y1>box_y2){
 546       Y1=box_y2;
 547       Y2=box_y1;
 548     }
 549     else{
 550       Y1=box_y1;
 551       Y2=box_y2;
 552     }
 553     fltk::fillrect(X1,Y1,X2-X1,1);
 554     fltk::fillrect(X1,Y1,1,Y2-Y1);
 555     fltk::fillrect(X2,Y1,1,Y2-Y1);
 556     fltk::fillrect(X1,Y2,X2-X1,1);
 557   }
 558
 559   fltk::pop_clip();
 560
 561 }
 562
 563
 564
 565 void PianoRoll::scrollTo(int X, int Y){
 566
 567   if(!cur_seqpat){
 568     return;
 569   }
 570
 571   if(is_backend_playing() && config.follow){
 572     int pos = tick2xpix(get_play_position()) - cur_seqpat->tick;
 573     if(pos < X || pos > X + w() - 30 - 30){
 574       ui->pattern_hscroll->value(scrollx);
 575       return;
 576     }
 577   }
 578
 579   scrollx = X;
 580   scrolly = Y;
 581   cur_seqpat->scrollx = X;
 582   cur_seqpat->scrolly = Y;
 583
 584   redraw();
 585   ui->pattern_hscroll->value(X);
 586   ui->pattern_hscroll->redraw();
 587   ui->pattern_vscroll->value(Y);
 588   ui->pattern_timeline->scroll = X;
 589   ui->pattern_timeline->redraw();
 590   ui->event_edit->scroll = X;
 591   ui->event_edit->redraw();
 592   ui->keyboard->scroll = Y;
 593   ui->keyboard->redraw();
 594 }
 595
 596 static int kludge=2;
 597 void PianoRoll::layout(){
 598    if(kludge!=0){
 599     kludge--;
 600     return;
 601   }
 602   fakeh = 900;
 603   if(fakeh<h()){
 604     fakeh = h();
 605   }
 606
 607   fltk::Scrollbar* sb = ui->pattern_vscroll;
 608
 609   sb->maximum(0);
 610   sb->minimum(fakeh-h());
 611
 612   if(sb->value() > sb->minimum()){
 613     scrollTo(scrollx,900-h());
 614   }
 615   int M = h() - 30;
 616   int newsize = M-(fakeh-h());
 617   if(newsize<20){
 618     newsize=20;
 619   }
 620   ui->song_vscroll->slider_size(60);
 621 }
 622
 623 void PianoRoll::load(seqpat* s){
 624   cur_seqpat = s;
 625   scrollTo(s->scrollx,s->scrolly);
 626   cur_track = tracks[s->track];
 627   ui->pattern_timeline->ticks_offset = s->tick;
 628 }
 629
 630
 631
 632 int PianoRoll::note2ypix(int note){
 633   int udy = 6*(note + (note+7)/12 + note/12) + 12;
 634   return 900 - udy + 1;
 635 }
 636
 637 int PianoRoll::tick2xpix(int tick){
 638   return tick*zoom*4 / 128;
 639 }
 640
 641 int PianoRoll::xpix2tick(int xpix){
 642   return xpix*128 / (zoom*4);
 643 }
 644
 645 int PianoRoll::quantize(int tick){
 646   return tick/q_tick * q_tick;
 647 }
 648
 649
 650 void PianoRoll::set_zoom(int z){
 651   zoom = z;
 652   relayout();
 653 }
 654
 655
 656 mevent* PianoRoll::over_note(){
 657   mevent* e = cur_seqpat->p->events->next;
 658
 659   int X = event_x()+scrollx;
 660   int Y = event_y()+scrolly;
 661
 662   int cy, lx, rx;
 663   while(e){
 664     if(e->type == MIDI_NOTE_ON){
 665       cy = note2ypix(e->value1);
 666       lx = tick2xpix(e->tick);
 667       rx = tick2xpix(e->tick+e->dur);
 668       if(X > lx && X < rx &&
 669          Y < cy+12 && Y > cy){
 670         return e;
 671       }
 672     }
 673     e = e->next;
 674   }
 675
 676   return NULL;
 677 }
 678
 679
 680
 681 void PianoRoll::update(int pos){
 682   if(!is_backend_playing() || !cur_seqpat){
 683     return;
 684   }
 685   int X1 = tick2xpix(pos-cur_seqpat->tick);
 686   int X2 = X1 - scrollx;
 687   if(X2 < 0){
 688     scrollTo(X1-50<0?0:X1-50,scrolly);
 689   }
 690   if(X2 > w()-30){
 691     scrollTo(X1-50,scrolly);
 692   }
 693 }
 694
 695
 696 void PianoRoll::unselect_all(){
 697   mevent* e = cur_seqpat->p->events;
 698   while(e){
 699     if(e->type == MIDI_NOTE_ON && e->selected==1){
 700       e->selected = 0;
 701     }
 702     e = e->next;
 703   }
 704 }
 705
 706
 707
 708 void PianoRoll::get_event_color(mevent* e, fltk::Color* c1, fltk::Color* c2, fltk::Color* c3){
 709
 710   int T1,T2;
 711   int tmp;
 712   if(delete_flag){
 713     if(e->selected){
 714       *c1 = fltk::color(229,79,75);
 715       *c2 = fltk::color(120,60,58);
 716       *c3 = fltk::color(225,131,109);
 717       return;
 718     }
 719   }
 720
 721   if(box_flag){
 722     T1=box_t1;
 723     T2=box_t2;
 724     int N1 = box_n1;
 725     int N2 = box_n2;
 726     int N = e->value1;
 727     if(T1>T2){SWAP(T1,T2);}
 728     if(N1<N2){SWAP(N1,N2);}
 729     if(e->tick+e->dur > T1 && e->tick < T2 && N >= N2 && N <= N1){
 730       *c1 = fltk::color(108,229,75);
 731       *c2 = fltk::color(71,120,59);
 732       *c3 = fltk::color(108,229,75);
 733       return;
 734     }
 735   }
 736
 737   if(e->selected){
 738     *c1 = fltk::color(255,248,47);
 739     *c2 = fltk::color(140,137,46);
 740     *c3 = fltk::color(232,255,37);
 741     return;
 742   }
 743
 744   *c1 = fltk::color(169,75,229);
 745   *c2 = fltk::color(95,58,119);
 746   *c3 = fltk::color(198,109,225);
 747 }
 748
 749
 750 void PianoRoll::apply_box(){
 751   mevent* e = cur_seqpat->p->events->next;
 752   int tmp;
 753   int T1=box_t1;
 754   int T2=box_t2;
 755   int N1 = box_n1;
 756   int N2 = box_n2;
 757
 758   if(T1>T2){SWAP(T1,T2);}
 759   if(N1<N2){SWAP(N1,N2);}
 760   while(e){
 761     int N = e->value1;
 762     if(e->type == MIDI_NOTE_ON &&
 763        e->tick+e->dur > T1 && e->tick < T2 &&
 764        N >= N2 && N <= N1){
 765         e->selected = 1;
 766     }
 767     e = e->next;
 768   }
 769 }
 770
 771 void PianoRoll::apply_insert(){
 772   if(insert_note > 127 || insert_note < 0){
 773     return;
 774   }
 775
 776   int tmp;
 777   int T1 = insert_torig;
 778   int T2 = T1 + insert_toffset;
 779   if(T1>T2){SWAP(T1,T2);}
 780
 781   if(T1 < 0){
 782     return;
 783   }
 784
 785   pattern* p = cur_seqpat->p;
 786   Command* c=new CreateNote(p,insert_note,config.defaultvelocity,T1,T2-T1);
 787   set_undo(c);
 788   undo_push(1);
 789
 790   cur_track->restate();
 791 }
 792
 793 void PianoRoll::apply_delete(){
 794   Command* c;
 795   mevent* e;
 796   mevent* next;
 797   pattern* p = cur_seqpat->p;
 798   int N=0;
 799
 800   e = cur_seqpat->p->events->next;
 801   while(e){
 802     next = e->next;
 803     if(e->selected && e->type == MIDI_NOTE_ON){
 804       c=new DeleteNote(p,e);
 805       set_undo(c);
 806       N++;
 807     }
 808     e = next;
 809   }
 810   undo_push(N);
 811
 812   cur_track->restate();
 813 }
 814
 815 void PianoRoll::apply_move(){
 816   if(move_toffset==0 && move_noffset==0){
 817     return;
 818   }
 819
 820   pattern* p = cur_seqpat->p;
 821   mevent* e = p->events->next;
 822   while(e){
 823     int K = e->value1+move_noffset;
 824     int T = e->tick+move_toffset;
 825     if(e->type == MIDI_NOTE_ON && e->selected && (T<0 || K < 0 || K > 127)){
 826       return;
 827     }
 828     e = e->next;
 829   }
 830
 831
 832   Command* c;
 833   e = p->events->next;
 834
 835   mevent* next;
 836   int M=0;
 837   for(int i=0; i<tracks.size(); i++){
 838     e = p->events->next;
 839     while(e){
 840       next = e->next;
 841       if(e->selected && e->modified == 0){
 842         int K = e->value1 + move_noffset;
 843         int T = e->tick + move_toffset;
 844         e->modified = 1;
 845         c=new MoveNote(p,e,T,K);
 846         set_undo(c);
 847         M++;
 848       }
 849       e = next;
 850     }
 851   }
 852   undo_push(M);
 853
 854   e = p->events->next;
 855   while(e){
 856     if(e->modified){e->modified=0;}
 857     e = e->next;
 858   }
 859
 860   cur_track->restate();
 861 }
 862
 863 void PianoRoll::apply_paste(){
 864
 865 }
 866
 867
 868
 869 void PianoRoll::apply_rresize(){
 870   if(rresize_toffset==0){
 871     return;
 872   }
 873
 874   Command* c;
 875   mevent* e;
 876   mevent* next;
 877   pattern* p = cur_seqpat->p;
 878   int tmp;
 879   int N=0;
 880
 881   e = p->events->next;
 882   while(e){
 883     next = e->next;
 884     if(e->type == MIDI_NOTE_ON && e->selected && e->modified == 0){
 885       e->modified = 1;
 886       int W = e->dur;
 887       int R = rresize_toffset;
 888       if(W+R < q_tick){
 889         R = q_tick-W;
 890       }
 891       c=new ResizeNote(p,e,W+R);
 892       set_undo(c);
 893       N++;
 894     }
 895     e = next;
 896   }
 897
 898   e = p->events->next;
 899   while(e){
 900     if(e->modified){e->modified=0;}
 901     e = e->next;
 902   }
 903
 904   cur_track->restate();
 905   undo_push(N);
 906 }
 907
 908 void PianoRoll::apply_lresize(){
 909   if(lresize_toffset==0){
 910     return;
 911   }
 912
 913   Command* c;
 914   mevent* e;
 915   mevent* next;
 916   pattern* p = cur_seqpat->p;
 917   int tmp;
 918   int N=0;
 919
 920   e = p->events->next;
 921   while(e){
 922     if(e->type == MIDI_NOTE_ON && e->selected){
 923       if(e->tick + lresize_toffset < 0){
 924         return;
 925       }
 926     }
 927     e = e->next;
 928   }
 929
 930   e = p->events->next;
 931   while(e){
 932     next = e->next;
 933     if(e->type == MIDI_NOTE_ON && e->selected && e->modified == 0){
 934       e->modified = 1;
 935       int T = e->tick;
 936       int W = e->dur;
 937       int R = lresize_toffset;
 938
 939       if(R > W-q_tick){
 940         R = W-q_tick;
 941       }
 942
 943       mevent* etmp = e->prev;
 944       c=new ResizeNote(p,e,W-R);
 945       set_undo(c);
 946
 947       e = etmp->next;
 948       c=new MoveNote(p,e,T+R,e->value1);
 949       set_undo(c);
 950
 951       N+=2;
 952     }
 953     e = next;
 954   }
 955
 956   e = p->events->next;
 957   while(e){
 958     if(e->modified){e->modified=0;}
 959     e = e->next;
 960   }
 961
 962   cur_track->restate();
 963   undo_push(N);
 964 }
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974 int PianoRoll::over_rhandle(mevent* e){
 975   int X = event_x()+scrollx;
 976   int Y = event_y()+scrolly;
 977   int X1 = tick2xpix(e->tick);
 978   int X2 = X1 + tick2xpix(e->dur);
 979   int Y1 = note2ypix(e->value1);
 980   int Y2 = Y1 + 12;
 981
 982   if(X2-X1 < resize_handle_width*3){
 983     return 0;
 984   }
 985
 986   return (Y > Y1 && Y < Y2 && X < X2 && X > X2 - resize_handle_width);
 987 }
 988
 989 int PianoRoll::over_lhandle(mevent* e){
 990   int X = event_x()+scrollx;
 991   int Y = event_y()+scrolly;
 992   int X1 = tick2xpix(e->tick);
 993   int X2 = X1 + tick2xpix(e->dur);
 994   int Y1 = note2ypix(e->value1);
 995   int Y2 = Y1 + 12;
 996
 997   if(X2-X1 < resize_handle_width*3){
 998     return 0;
 999   }
1000
1001   return (Y > Y1 && Y < Y2 && X < X1+ resize_handle_width +1 && X > X1 + 1);
1002 }