mirror of
https://github.com/microtherion/VocalEasel.git
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341 lines
8.4 KiB
Plaintext
341 lines
8.4 KiB
Plaintext
//
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// File: VLSheetViewNotes.mm - Melody editing functionality
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//
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// Author(s):
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//
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// (MN) Matthias Neeracher
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//
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// Copyright © 2005-2007 Matthias Neeracher
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//
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#import "VLSheetView.h"
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#import "VLSheetViewNotes.h"
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#import "VLSheetViewInternal.h"
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#import "VLDocument.h"
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#import "VLSoundOut.h"
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#include <algorithm>
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@implementation VLSheetView (Notes)
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- (void) addNoteAtCursor
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{
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if (fCursorMeasure > -1) {
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VLNote newNote(1, fClickMode==' ' ? fCursorActualPitch : VLNote::kNoPitch);
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[[self document] willChangeSong];
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if (fCursorAccidental == kMusicExtendCursor)
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[self song]->ExtendNote(fCursorMeasure, fCursorAt);
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else if (fClickMode == 'k')
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[self song]->DelNote(fCursorMeasure, fCursorAt);
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else
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[self song]->AddNote(VLLyricsNote(newNote), fCursorMeasure, fCursorAt);
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[[self document] didChangeSong];
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if (fClickMode == ' ')
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VLSoundOut::Instance()->PlayNote(newNote);
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else
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fClickMode = ' ';
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}
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}
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- (void) startKeyboardCursor
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{
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if (fCursorMeasure < 0) {
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fCursorMeasure = 0;
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fCursorPitch = VLNote::kMiddleC;
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fCursorActualPitch = fCursorPitch;
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fCursorAt = VLFraction(0);
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}
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}
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- (void) drawLedgerLinesWithPitch:(int)pitch at:(NSPoint)p
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{
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p.x += kLedgerX;
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int octave = (pitch / 12) - 5;
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int step = (octave*7+[self stepWithPitch:pitch]-2)/2;
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for (int i=0; i-- > step; ) {
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NSPoint p0 = p;
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p0.y += i*kLineH;
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NSPoint p1 = p0;
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p1.x += kLedgerW;
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[NSBezierPath strokeLineFromPoint:p0 toPoint:p1];
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}
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for (int i=4; i++ < step; ) {
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NSPoint p0 = p;
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p0.y += i*kLineH;
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NSPoint p1 = p0;
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p1.x += kLedgerW;
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[NSBezierPath strokeLineFromPoint:p0 toPoint:p1];
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}
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}
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- (void) drawNoteCursor
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{
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int cursorX;
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int cursorY;
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VLMusicElement accidental;
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VLMusicElement cursorElt;
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cursorX = [self noteXInMeasure:fCursorMeasure at:fCursorAt];
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if (fCursorAccidental == kMusicExtendCursor) {
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cursorY =
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[self noteYInMeasure:fCursorMeasure
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withPitch:fCursorPitch
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accidental:&accidental];
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cursorElt = fCursorAccidental;
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} else
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switch (fClickMode) {
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default:
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cursorY =
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[self noteYInMeasure:fCursorMeasure
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withPitch:fCursorPitch accidental:&accidental] - kNoteY;
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[self drawLedgerLinesWithPitch:fCursorPitch
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at:NSMakePoint(cursorX,
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[self systemY:fLayout->SystemForMeasure(fCursorMeasure)])];
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cursorElt = kMusicNoteCursor;
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break;
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case 'r':
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cursorY = [self noteYInMeasure:fCursorMeasure
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withPitch:65 accidental:&accidental];
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cursorElt = kMusicRestCursor;
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break;
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case 'k':
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cursorY = [self noteYInMeasure:fCursorMeasure
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withPitch:fCursorPitch accidental:&accidental];
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cursorElt = kMusicKillCursor;
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break;
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}
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NSPoint at = NSMakePoint(cursorX-kNoteX, cursorY);
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[[self musicElement:cursorElt]
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compositeToPoint:at
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operation: NSCompositeSourceOver];
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if (fCursorAccidental && fCursorAccidental != kMusicExtendCursor) {
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at.y += kNoteY;
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switch (cursorElt= fCursorAccidental) {
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case kMusicFlatCursor:
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at.x += kFlatW;
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at.y += kFlatY;
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break;
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case kMusicSharpCursor:
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at.x += kSharpW;
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at.y += kSharpY;
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break;
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default:
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at.x += kNaturalW;
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at.y += kNaturalY;
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break;
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}
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[[self musicElement:cursorElt]
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compositeToPoint:at
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operation: NSCompositeSourceOver];
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}
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}
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- (void) drawNote:(int)visual at:(NSPoint)p
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accidental:(VLMusicElement)accidental tied:(BOOL)tied
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{
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NSPoint s = p;
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NSPoint c = p;
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p.x -= kNoteX;
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p.y -= kNoteY;
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s.x += kNoteX+kStemX;
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s.y += kStemY;
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//
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// Draw note head
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//
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NSImage * head;
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switch (visual & VLNote::kNoteHead) {
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case VLNote::kWhole:
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head = [self musicElement:kMusicWholeNote];
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break;
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case VLNote::kHalf:
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head = [self musicElement:kMusicHalfNote];
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s.x -= 1.0f;
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break;
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default:
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head = [self musicElement:kMusicNote];
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s.x -= 2.0f;
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break;
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}
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[head compositeToPoint:p
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operation: NSCompositePlusDarker];
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//
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// Draw accidental
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//
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if (accidental) {
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NSPoint at = p;
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at.y += kNoteY;
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switch (accidental) {
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case kMusicSharp:
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at.x += kSharpW;
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at.y += kSharpY;
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break;
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case kMusicFlat:
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at.x += kFlatW;
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at.y += kFlatY;
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break;
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case kMusicNatural:
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at.x += kNaturalW;
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at.y += kNaturalY;
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break;
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}
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[[self musicElement:accidental]
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compositeToPoint:at operation: NSCompositeSourceOver];
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}
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//
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// Draw stem
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//
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//
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//
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if (visual > 0) {
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NSBezierPath * bz = [NSBezierPath bezierPath];
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NSPoint s1 = NSMakePoint(s.x, s.y+kStemH);
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NSImage * flag = nil;
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switch (visual) {
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case VLNote::kEighth:
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flag = [self musicElement:kMusicEighthFlag];
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break;
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case VLNote::k16th:
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flag = [self musicElement:kMusicSixteenthFlag];
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s1.y += 5.0f;
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break;
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case VLNote::k32nd:
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flag = [self musicElement:kMusicThirtysecondthFlag];
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s1.y += 13.0f;
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break;
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}
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[[NSColor blackColor] set];
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[bz setLineWidth:2.0f];
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[bz moveToPoint:s];
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[bz lineToPoint:s1];
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[bz stroke];
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if (flag)
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[flag compositeToPoint:s
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operation: NSCompositePlusDarker];
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}
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//
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// Draw tie
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//
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if (tied) {
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NSPoint mid =
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NSMakePoint(0.5f*(fLastNoteCenter.x+c.x),
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0.5f*(fLastNoteCenter.y+c.y));
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NSPoint dir = NSMakePoint(c.y-mid.y, c.x-mid.x);
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float n = dir.x*dir.x+dir.y*dir.y;
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float r = (kTieDepth*kTieDepth+n) / (2.0f*kTieDepth);
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float l = (r-kTieDepth) / sqrtf(n);
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mid.x += dir.x*l;
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mid.y += dir.y*l;
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float a1 = atan2(fLastNoteCenter.y-mid.y, fLastNoteCenter.x-mid.x);
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float a2 = atan2(c.y-mid.y, c.x-mid.x);
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NSBezierPath * bz = [NSBezierPath bezierPath];
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[bz appendBezierPathWithArcWithCenter:mid radius:r
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startAngle:a1*180.0f/M_PI endAngle:a2*180.0f/M_PI];
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[bz stroke];
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}
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fLastNoteCenter = c;
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}
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- (void) drawRest:(int)visual at:(NSPoint)p
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{
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//
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// Draw rest
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//
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NSImage * head = nil;
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switch (visual) {
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case VLNote::kWhole:
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head = [self musicElement:kMusicWholeRest];
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p.y += kWholeRestY;
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break;
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case VLNote::kHalf:
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head = [self musicElement:kMusicHalfRest];
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p.y += kHalfRestY;
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break;
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case VLNote::kQuarter:
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head = [self musicElement:kMusicQuarterRest];
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p.x -= kNoteX;
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break;
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case VLNote::kEighth:
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head = [self musicElement:kMusicEighthRest];
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p.x -= kNoteX;
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break;
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case VLNote::k16th:
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head = [self musicElement:kMusicSixteenthRest];
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p.x -= kNoteX;
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break;
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case VLNote::k32nd:
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head = [self musicElement:kMusicThirtysecondthRest];
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p.x -= kNoteX;
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break;
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}
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[head compositeToPoint:p
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operation: NSCompositeSourceOver];
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}
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- (void) drawNotesForSystem:(int)system
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{
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const int kFirstMeas = fLayout->FirstMeasure(system);
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const VLSong * song = [self song];
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const VLProperties & kProp = song->Properties(kFirstMeas);
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const VLSystemLayout & kLayout = (*fLayout)[system];
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float kSystemY = [self systemY:system];
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for (int m = 0; m<kLayout.NumMeasures(); ++m) {
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VLMusicElement accidentals[7];
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memset(accidentals, 0, 7*sizeof(VLMusicElement));
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int measIdx = m+kFirstMeas;
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if (measIdx >= song->CountMeasures())
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break;
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const VLMeasure & measure = song->fMeasures[measIdx];
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VLNoteList melody;
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measure.DecomposeNotes(kProp, melody);
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VLFraction at(0);
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for (VLNoteList::const_iterator note = melody.begin();
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note != melody.end();
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++note
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) {
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BOOL tied = (note != melody.begin() || m)
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&& note->fTied & VLNote::kTiedWithPrev;
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int pitch = note->fPitch;
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if (pitch != VLNote::kNoPitch) {
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[self drawLedgerLinesWithPitch:pitch
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at:NSMakePoint([self noteXInMeasure:m at:at], kSystemY)];
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VLMusicElement accidental;
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NSPoint pos =
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NSMakePoint([self noteXInMeasure:m at:at],
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kSystemY+[self noteYWithPitch:pitch
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accidental:&accidental]);
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VLMusicElement acc = accidental;
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int step= [self stepWithPitch:pitch];
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if (acc == accidentals[step])
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acc = kMusicNothing; // Don't repeat accidentals
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else if (acc == kMusicNothing)
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if (accidentals[step] == kMusicNatural) // Resume signature
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acc = kProp.fKey < 0 ? kMusicFlat : kMusicSharp;
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else
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acc = kMusicNatural;
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[self drawNote:note->fVisual & VLNote::kNoteHead
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at: pos
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accidental: acc
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tied:tied];
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accidentals[step] = accidental;
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} else {
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VLMusicElement accidental;
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NSPoint pos =
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NSMakePoint([self noteXInMeasure:m at:at],
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kSystemY+[self noteYWithPitch:65
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accidental:&accidental]);
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[self drawRest:note->fVisual & VLNote::kNoteHead at: pos];
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}
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at += note->fDuration;
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}
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}
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if (fCursorPitch != VLNote::kNoPitch && fLayout->SystemForMeasure(fCursorMeasure) == system)
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[self drawNoteCursor];
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}
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@end
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