# HG changeset patch
# User Chris Cannam
# Date 1139938994 0
# Node ID 070e9e1e40eaf2dd1e2c352950d979c45d074252
# Parent  090c22aa726aa65856909ee2df5d0a7ca922a939
* Change SpectrogramLayer to use its own cache type instead of a QImage
* Some gcc-4.0 compile fixes

diff -r 090c22aa726a -r 070e9e1e40ea base/AudioPlaySource.h
--- a/base/AudioPlaySource.h	Fri Feb 10 17:51:36 2006 +0000
+++ b/base/AudioPlaySource.h	Tue Feb 14 17:43:14 2006 +0000
@@ -21,6 +21,8 @@
 class AudioPlaySource
 {
 public:
+    virtual ~AudioPlaySource() { }
+
     /**
      * Start playing from the given frame.  If playback is already
      * under way, reseek to the given frame and continue.
diff -r 090c22aa726a -r 070e9e1e40ea base/PropertyContainer.h
--- a/base/PropertyContainer.h	Fri Feb 10 17:51:36 2006 +0000
+++ b/base/PropertyContainer.h	Tue Feb 14 17:43:14 2006 +0000
@@ -19,6 +19,8 @@
 class PropertyContainer
 {
 public:
+    virtual ~PropertyContainer() { }
+
     typedef QString PropertyName;
     typedef std::vector<PropertyName> PropertyList;
     
diff -r 090c22aa726a -r 070e9e1e40ea base/XmlExportable.h
--- a/base/XmlExportable.h	Fri Feb 10 17:51:36 2006 +0000
+++ b/base/XmlExportable.h	Tue Feb 14 17:43:14 2006 +0000
@@ -16,6 +16,8 @@
 class XmlExportable
 {
 public:
+    virtual ~XmlExportable() { }
+
     virtual QString toXmlString(QString indent = "",
 				QString extraAttributes = "") const = 0;
 
diff -r 090c22aa726a -r 070e9e1e40ea base/ZoomConstraint.h
--- a/base/ZoomConstraint.h	Fri Feb 10 17:51:36 2006 +0000
+++ b/base/ZoomConstraint.h	Tue Feb 14 17:43:14 2006 +0000
@@ -24,6 +24,8 @@
 class ZoomConstraint
 {
 public:
+    virtual ~ZoomConstraint() { }
+
     enum RoundingDirection {
 	RoundDown,
 	RoundUp,