Added ValueViewer,DataViewer,CardViewer and made related changes

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@49 0fc631ac-6414-0410-93d0-97cfa31319b6

src/render/value/viewer.hpp

@@ -0,0 +1,78 @@
+//+----------------------------------------------------------------------------+
+//| 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_RENDER_VALUE_VIEWER
+#define HEADER_RENDER_VALUE_VIEWER
+
+// ----------------------------------------------------------------------------- : Includes
+
+#include <util/prec.hpp>
+#include <util/rotation.hpp>
+#include <util/real_point.hpp>
+
+class DataViewer;
+class ValueAction;
+DECLARE_POINTER_TYPE(Style);
+DECLARE_POINTER_TYPE(Value);
+
+// ----------------------------------------------------------------------------- : ValueViewer
+
+/// The virtual viewer control for a single field on a card (or in the set data)
+/** A viewer can only display a value, not edit it, ValueEditor is used for that */
+class ValueViewer {
+  public:
+	/// Construct a ValueViewer, set the value at a later time
+	ValueViewer(DataViewer& parent, const StyleP& style);
+	virtual ~ValueViewer();
+	
+	// Draw this value
+	virtual void draw(RotatedDC& dc) = 0;
+	
+	/// Does this field contian the given point?
+	virtual bool containsPoint(const RealPoint& p) const;
+	/// Get a bounding rectangle for this field (including any border it may have)
+	virtual RealRect boundingBox() const;
+	
+	/// Called when the associated value is changed
+	/** Both when we are associated with another value,
+	 *  and by default when the value itself changes (called from onAction)
+	 */
+	virtual void onValueChange() {}
+	/// Called when a (scripted) property of the associated style has changed
+	virtual void onStyleChange() {}
+	/// Called when an action is performed on the associated value
+	virtual void onAction(const ValueAction&, bool undone) { onValueChange(); }
+	
+	/// Change the associated value
+	void setValue(const ValueP&);
+	
+  protected:
+	DataViewer& viewer;	///< Our parent object
+	StyleP style_;		///< The style of this viewer
+	ValueP value_;		///< The value we are currently viewing
+	
+	/// Should this viewer render using a platform native look?
+	bool nativeLook() const;
+	/// Is this the currently selected viewer?
+	/** Usually only the editor allows selection of viewers */
+	bool isCurrent() const;
+	
+	/// Draws a border around the field
+	void drawFieldBorder(RotatedDC& dc);
+};
+
+// ----------------------------------------------------------------------------- : Utility
+
+#define VALUE_VIEWER(Base, Type)								\
+  public:														\
+	Type(DataViewer& parent, const Type ## StyleP& style)		\
+  private:														\
+	inline Type##Style style() const { return *value_; }		\
+	inline Type##Value value() const { return *value_; }
+
+
+// ----------------------------------------------------------------------------- : EOF
+#endif