Added "querySaveMetaInfos" to MetaEngine.

 -> Allows easy addition of save state specific infos like playtime, save date atc.
 -> Removed MetaEngine::loadThumbnailFromSlot, superseded by meta infos
 -> Changed SCUMM / KYRA to implement the newly added functionallity
 -> Removed hack in KYRAs listSavefiles, which is now handled via meta infos

svn-id: r34581

1 files changed, 18 insertions, 1 deletions

diff --git a/graphics/surface.h b/graphics/surface.h
index ff1ddda695..747bda9a26 100644
--- a/graphics/surface.h
+++ b/graphics/surface.h
@@ -30,7 +30,6 @@
 
 namespace Graphics {
 
-
 /**
  * An arbitrary graphics surface, which can be the target (or source) of blit
  * operations, font rendering, etc.
@@ -67,6 +66,12 @@ struct Surface {
 	 */
 	void free();
 
+	/**
+	 * Copies data from another Surface, this calls *free* on the current surface, to assure
+	 * it being clean.
+	 */
+	void copyFrom(const Surface &surf);
+
 	void drawLine(int x0, int y0, int x1, int y1, uint32 color);
 	void hLine(int x, int y, int x2, uint32 color);
 	void vLine(int x, int y, int y2, uint32 color);
@@ -76,6 +81,18 @@ struct Surface {
 	void move(int dx, int dy, int height);
 };
 
+/**
+ * For safe deletion of surface with SharedPtr.
+ * The deleter assures Surface::free is called on
+ * deletion.
+ */
+struct SharedPtrSurfaceDeleter {
+	void operator()(Surface *ptr) {
+		ptr->free();
+		delete ptr;
+	}
+};
+
 
 } // End of namespace Graphics