Reorganize property access

Sources/VLLayout.cpp

@@ -28,8 +28,7 @@ VLSystemLayout::VLSystemLayout(const VLProperties & prop, float width)
 VLLayout::VLLayout(const VLSong & song, float width)
 {
 	for (size_t meas = 0; meas<song.fMeasures.size(); ) {
-		const VLProperties & prop = song.fProperties[song.fMeasures[meas].fPropIdx];
+		push_back(VLSystemLayout(song.Properties(meas), width));
-		push_back(VLSystemLayout(prop, width));
 		meas += back().NumMeasures();
 	}
 }

Sources/VLModel.cpp

@@ -552,7 +552,7 @@ VLSong::VLSong(bool initialize)
 
 void VLSong::AddMeasure()
 {
-	VLFraction		dur  = fProperties.front().fTime;
+	VLFraction		dur  = fProperties.back().fTime;
 	dur.Normalize();
 	VLLyricsNote 	rest(dur);
 	VLChord 		rchord(dur);
@@ -1914,8 +1914,8 @@ void VLSong::PasteMeasures(size_t beginMeasure, const VLSong & measures, int mod
 void VLSong::DeleteMeasures(size_t beginMeasure, size_t endMeasure, int mode)
 {
 	if (mode == kOverwriteMelody) {
-		VLLyricsNote rest(fProperties.front().fTime);
 		for (size_t m=beginMeasure; m<endMeasure; ++m) {
+			VLLyricsNote rest(Properties(m).fTime);
 			fMeasures[m].fMelody.clear();
 			fMeasures[m].fMelody.push_back(rest);
 		}

Sources/VLModel.h

@@ -362,6 +362,12 @@ public:
 	size_t	CountTopLedgers() const;
 	size_t	CountBotLedgers() const;
 	VLFract TiedDuration(size_t measure);
+	VLProperties & Properties(size_t measure) {
+		return fProperties[fMeasures[measure].fPropIdx];
+	}
+	const VLProperties & Properties(size_t measure) const {
+		return fProperties[fMeasures[measure].fPropIdx];
+	}
 private:
 	void	AddMeasure();
 };

Sources/VLSheetView.mm

@@ -295,8 +295,7 @@ VLMusicElement sSemi2Accidental[12][12] = {
 
 	const VLSystemLayout &  kLayout = (*fLayout)[system];
 	const VLSong * 			song  	= [self song];
-	const VLProperties & 	kProp 	=
+	const VLProperties & 	kProp 	= song->Properties(fLayout->FirstMeasure(system));
-		song->fProperties[song->fMeasures[fLayout->FirstMeasure(system)].fPropIdx];
 
 	const float kSystemY 	= [self systemY:system];
 	const float kLineW 		= (*fLayout)[system].SystemWidth();
@@ -722,14 +721,15 @@ static int8_t sSharpAcc[] = {
 {
 	fCursorPitch = VLNote::kNoPitch;
 
-	const VLProperties & 	prop = [self song]->fProperties.front();
 	NSPoint loc 	= [event locationInWindow];
 	loc 			= [self convertPoint:loc fromView:nil];
 
 	if (loc.y < 0.0f || loc.y >= fLayout->NumSystems()*kSystemH)
 		return fCursorRegion = kRegionNowhere;
 
-	int system = fLayout->NumSystems() - static_cast<int>(loc.y / kSystemH) - 1;
+	const VLSong * 			song  		= [self song];
+	int system 							= 
+		fLayout->NumSystems() - static_cast<int>(loc.y / kSystemH) - 1;
 	const VLSystemLayout &	kLayout		= (*fLayout)[system];
 	const float				kMeasureW	= kLayout.MeasureWidth();
 	loc.y      = fmodf(loc.y, kSystemH);
@@ -760,12 +760,12 @@ static int8_t sSharpAcc[] = {
 	loc.x		   -= group*(kLayout.DivPerGroup()+1)*kNoteW;
 	int div			= static_cast<int>(roundf(loc.x / kNoteW))-1;
 	div				= std::min(std::max(div, 0), kLayout.DivPerGroup()-1);
-	fCursorAt 		= VLFraction(div+group*kLayout.DivPerGroup(), 4*prop.fDivisions);
 	fCursorMeasure	= measure+fLayout->FirstMeasure(system);
-
 	if (fCursorMeasure > [self song]->fMeasures.size())
 		return fCursorRegion = kRegionNowhere;
 		
+	fCursorAt 		= VLFraction(div+group*kLayout.DivPerGroup(), 4*song->Properties(fCursorMeasure).fDivisions);
+
 	if (loc.y >= kSystemBaseline+kChordY) {
 		//
 		// Chord, round to quarters

Sources/VLSheetViewChords.mm

@@ -103,7 +103,7 @@ std::string NormalizeName(NSString* rawName)
 			//
 			VLSoundOut::Instance()->PlayChord(*chord);
 
-			const VLProperties & 	prop	= fSong->fProperties.front();
+			const VLProperties & 	prop	= fSong->Properties(fMeasure);
 			std::string name, ext, root;
 			chord->Name(name, ext, root, prop.fKey > 0);
 			

Sources/VLSheetViewLyrics.mm

@@ -85,7 +85,7 @@
 	VLFraction at = fAt;
 	if (!fSong->PrevWord(fStanza, fMeasure, at)) {
 		fMeasure = fSong->CountMeasures()-1;
-		at		 = fSong->fProperties.front().fTime;
+		at		 = fSong->Properties(fMeasure).fTime;
 		fSong->PrevWord(fStanza, fMeasure, at);
 	}
 	fAt = at;

Sources/VLSheetViewNotes.mm

@@ -279,8 +279,7 @@
 {
 	const int   			kFirstMeas	= fLayout->FirstMeasure(system);
 	const VLSong 		*	song 	  	= [self song];
-	const VLProperties & 	kProp 	  	= 
+	const VLProperties & 	kProp 	  	= song->Properties(kFirstMeas);
-		song->fProperties[song->fMeasures[kFirstMeas].fPropIdx];
 	const VLSystemLayout & 	kLayout 	= (*fLayout)[system];
 
 	float kSystemY = [self systemY:system];