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add commentary and clean up blank lines

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This commit is contained in:
Paul Davis 2015-10-21 22:30:13 -04:00
parent 217b2c7753
commit 6ca3a1593e
1 changed files with 12 additions and 2 deletions
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14
libs/pbd/pbd/controllable.h
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@ -37,6 +37,18 @@ class XMLNode;
namespace PBD {
/* This is a pure virtual class to represent a scalar control.
*
* Note that it contains no storage/state for the controllable thing that it
* represents. Derived classes must provide set_value()/get_value() methods,
* which will involve (somehow) an actual location to store the value.
*
* In essence, this is an interface, not a class.
*
* Without overriding upper() and lower(), a derived class will function
* as a control whose value can range between 0 and 1.0.
*/
class LIBPBD_API Controllable : public PBD::StatefulDestructible {
public:
enum Flag {
@ -116,9 +128,7 @@ class LIBPBD_API Controllable : public PBD::StatefulDestructible {
static const std::string xml_node_name;
private:
std::string _name;
std::string _units;
Flag _flags;
bool _touching;