X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flistdata.h;h=9f7d8ba850c7476e857dc911d60de5cd7e7e329c;hb=56c41b294aa47a38ac3e1be70d4868f260cb4274;hp=38706f8b1cc9ac64648c8b4a0202034b5e1475c3;hpb=1d84ac50711ce9d23cb1dafd83158d4ffa938a15;p=libs%2Fgltk.git

diff --git a/source/listdata.h b/source/listdata.h
index 38706f8..9f7d8ba 100644
--- a/source/listdata.h
+++ b/source/listdata.h
@@ -1,21 +1,23 @@
 #ifndef MSP_GLTK_LISTDATA_H_
 #define MSP_GLTK_LISTDATA_H_
 
+#include <stdexcept>
 #include <string>
 #include <vector>
 #include <sigc++/signal.h>
 #include <msp/strings/lexicalcast.h>
+#include "mspgltk_api.h"
 
 namespace Msp {
 namespace GLtk {
 
-class ListData
+class MSPGLTK_API ListData
 {
 public:
 	sigc::signal<void, unsigned> signal_item_added;
 	sigc::signal<void, unsigned> signal_item_removed;
 	sigc::signal<void> signal_cleared;
-	sigc::signal<void> signal_refresh_strings;
+	sigc::signal<void, unsigned> signal_refresh_item;
 
 protected:
 	ListData() { }
@@ -24,7 +26,12 @@ public:
 
 	virtual unsigned size() const = 0;
 	virtual std::string get_string(unsigned) const = 0;
-	void refresh_strings() const { signal_refresh_strings.emit(); }
+	void refresh(unsigned i) const
+	{
+		if(i>=size())
+			throw std::out_of_range("ListData::refresh");
+		signal_refresh_item.emit(i);
+	}
 };
 
 template<typename T>
@@ -38,7 +45,7 @@ protected:
 public:
 	void append(const T &v) { insert(items.size(), v); }
 
-	void insert(unsigned i, const T & v)
+	void insert(unsigned i, const T &v)
 	{
 		if(i>items.size())
 			throw std::out_of_range("ListDataStore::insert");
@@ -55,6 +62,22 @@ public:
 		return items[i];
 	}
 
+	int find(const T &v) const
+	{
+		for(unsigned i=0; i<items.size(); ++i)
+			if(items[i]==v)
+				return i;
+		return -1;
+	}
+
+	using ListData::refresh;
+	void refresh(const T &v) const
+	{
+		int i = find(v);
+		if(i>=0)
+			signal_refresh_item.emit(i);
+	}
+
 	void remove(unsigned i)
 	{
 		if(i>=items.size())