diff layer/SpectrogramLayer.h @ 120:8dfa20f1c70a

* some work on scaling and zooming for spectrogram

--- a/layer/SpectrogramLayer.h	Fri Jul 14 17:12:16 2006 +0000
+++ b/layer/SpectrogramLayer.h	Wed Jul 19 16:55:29 2006 +0000
@@ -166,6 +166,9 @@
     void setNormalizeColumns(bool n);
     bool getNormalizeColumns() const;
 
+    void setNormalizeVisibleArea(bool n);
+    bool getNormalizeVisibleArea() const;
+
     enum ColourScheme { DefaultColours, WhiteOnBlack, BlackOnWhite,
 			RedOnBlue, YellowOnBlack, BlueOnBlack, Rainbow };
 
@@ -194,6 +197,8 @@
 
     virtual bool getDisplayExtents(float &min, float &max) const;
 
+    virtual bool setDisplayExtents(float min, float max);
+
     virtual QString toXmlString(QString indent = "",
 				QString extraAttributes = "") const;
 
@@ -229,6 +234,7 @@
     FrequencyScale      m_frequencyScale;
     BinDisplay          m_binDisplay;
     bool                m_normalizeColumns;
+    bool                m_normalizeVisibleArea;
 
     enum { NO_VALUE = 0 }; // colour index for unused pixels