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+/*
+ * cocos2d for iPhone: http://www.cocos2d-iphone.org
+ *
+ * Copyright (c) 2008-2010 Ricardo Quesada
+ * Copyright (c) 2011 Zynga Inc.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#import "ccTypes.h"
+#import "CCTexture2D.h"
+
+#pragma mark -
+#pragma mark CCRGBAProtocol
+
+/// CC RGBA protocol
+@protocol CCRGBAProtocol <NSObject>
+/** sets Color
+ @since v0.8
+ */
+-(void) setColor:(ccColor3B)color;
+/** returns the color
+ @since v0.8
+ */
+-(ccColor3B) color;
+
+/// returns the opacity
+-(GLubyte) opacity;
+/** sets the opacity.
+ @warning If the the texture has premultiplied alpha then, the R, G and B channels will be modifed.
+ Values goes from 0 to 255, where 255 means fully opaque.
+ */
+-(void) setOpacity: (GLubyte) opacity;
+@optional
+/** sets the premultipliedAlphaOpacity property.
+ If set to NO then opacity will be applied as: glColor(R,G,B,opacity);
+ If set to YES then oapcity will be applied as: glColor(opacity, opacity, opacity, opacity );
+ Textures with premultiplied alpha will have this property by default on YES. Otherwise the default value is NO
+ @since v0.8
+ */
+-(void) setOpacityModifyRGB:(BOOL)boolean;
+/** returns whether or not the opacity will be applied using glColor(R,G,B,opacity) or glColor(opacity, opacity, opacity, opacity);
+ @since v0.8
+ */
+ -(BOOL) doesOpacityModifyRGB;
+@end
+
+#pragma mark -
+#pragma mark CCBlendProtocol
+/**
+ You can specify the blending fuction.
+ @since v0.99.0
+ */
+@protocol CCBlendProtocol <NSObject>
+/** set the source blending function for the texture */
+-(void) setBlendFunc:(ccBlendFunc)blendFunc;
+/** returns the blending function used for the texture */
+-(ccBlendFunc) blendFunc;
+@end
+
+
+#pragma mark -
+#pragma mark CCTextureProtocol
+
+/** CCNode objects that uses a Texture2D to render the images.
+ The texture can have a blending function.
+ If the texture has alpha premultiplied the default blending function is:
+    src=GL_ONE dst= GL_ONE_MINUS_SRC_ALPHA
+ else
+        src=GL_SRC_ALPHA dst= GL_ONE_MINUS_SRC_ALPHA
+ But you can change the blending funtion at any time.
+ @since v0.8.0
+ */
+@protocol CCTextureProtocol <CCBlendProtocol>
+/** returns the used texture */
+-(CCTexture2D*) texture;
+/** sets a new texture. it will be retained */
+-(void) setTexture:(CCTexture2D*)texture;
+@end
+
+#pragma mark -
+#pragma mark CCLabelProtocol
+/** Common interface for Labels */
+@protocol CCLabelProtocol <NSObject>
+/** sets a new label using an NSString.
+ The string will be copied.
+ */
+-(void) setString:(NSString*)label;
+/** returns the string that is rendered */
+-(NSString*) string;
+@optional
+/** sets a new label using a CString.
+ It is faster than setString since it doesn't require to alloc/retain/release an NString object.
+ @since v0.99.0
+ */
+-(void) setCString:(char*)label;
+@end
+
+
+#pragma mark -
+#pragma mark CCProjectionProtocol
+/** OpenGL projection protocol */
+@protocol CCProjectionProtocol <NSObject>
+/** Called by CCDirector when the porjection is updated, and "custom" projection is used
+ @since v0.99.5
+ */
+-(void) updateProjection;
+@end