comparison layer/layer.pro @ 193:57c2350a8c40

* Add slice layers (so you can display a slice of a colour 3d plot as if it were
  a spectrum)
* Make spectrum layer a subclass of slice layer

            Layer.h \
            LayerFactory.h \
            NoteLayer.h \
            SpectrogramLayer.h \
            SpectrumLayer.h \
+           SliceLayer.h \
+           SliceableLayer.h \
            TextLayer.h \
            TimeInstantLayer.h \
            TimeRulerLayer.h \
            TimeValueLayer.h \
            WaveformLayer.h

            Layer.cpp \
            LayerFactory.cpp \
            NoteLayer.cpp \
            SpectrogramLayer.cpp \
            SpectrumLayer.cpp \
+           SliceLayer.cpp \
            TextLayer.cpp \
            TimeInstantLayer.cpp \
            TimeRulerLayer.cpp \
            TimeValueLayer.cpp \
            WaveformLayer.cpp