Added value actions for common value types; drop down list is now correctly aligned

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@92 0fc631ac-6414-0410-93d0-97cfa31319b6

src/data/action/value.hpp

@@ -0,0 +1,72 @@
+//+----------------------------------------------------------------------------+
+//| Description:  Magic Set Editor - Program to make Magic (tm) cards          |
+//| Copyright:    (C) 2001 - 2006 Twan van Laarhoven                           |
+//| License:      GNU General Public License 2 or later (see file COPYING)     |
+//+----------------------------------------------------------------------------+
+
+#ifndef HEADER_DATA_ACTION_VALUE
+#define HEADER_DATA_ACTION_VALUE
+
+/** @file data/action/set.hpp
+ *
+ *  Actions operating on Values (and derived classes, "*Value")
+ */
+
+// ----------------------------------------------------------------------------- : Includes
+
+#include <util/prec.hpp>
+#include <util/action_stack.hpp>
+#include <util/defaultable.hpp>
+
+DECLARE_POINTER_TYPE(Value);
+DECLARE_POINTER_TYPE(TextValue);
+DECLARE_POINTER_TYPE(ChoiceValue);
+DECLARE_POINTER_TYPE(ColorValue);
+DECLARE_POINTER_TYPE(ImageValue);
+DECLARE_POINTER_TYPE(SymbolValue);
+
+// ----------------------------------------------------------------------------- : ValueAction (based class)
+
+/// An Action the changes a Value
+class ValueAction : public Action {
+  public:
+	inline ValueAction(const ValueP& value) : valueP(value) {}
+	
+	virtual String getName(bool to_undo) const;
+	
+	const ValueP valueP; ///< The modified value
+};
+
+/// Utility macro for declaring classes derived from ValueAction
+#define DECLARE_VALUE_ACTION(Type)						\
+  protected:											\
+	inline Type##Value& value() const {					\
+		return static_cast<Type##Value&>(*valueP);		\
+	}													\
+  public:												\
+	virtual void   perform(bool to_undo)
+
+
+// ----------------------------------------------------------------------------- : Simple
+
+ValueAction* value_action(const ChoiceValueP& value, const Defaultable<String>& new_value);
+ValueAction* value_action(const ColorValueP&  value, const Defaultable<Color>&  new_value);
+ValueAction* value_action(const ImageValueP&  value, const FileName&            new_value);
+ValueAction* value_action(const SymbolValueP& value, const FileName&            new_value);
+
+// ----------------------------------------------------------------------------- : Text
+
+/*
+class ColorValueAction : public ValueAction {
+  public:
+	ColorValueAction(const ColorValueP& value, const Defaultable<Color>& color);
+	
+	DECLARE_VALUE_ACTION(Color);
+	
+  private:
+	Defaultable<Color> color;	///< The new/old color
+};
+*/
+
+// ----------------------------------------------------------------------------- : EOF
+#endif