From 9cd57b731ab1c666d4a1cb725538fdc137763d12 Mon Sep 17 00:00:00 2001
From: Starla Insigna <starla4444@gmail.com>
Date: Sat, 30 Jul 2011 11:19:14 -0400
Subject: Initial commit (version 0.2.1)

---
 libs/cocos2d/CCLabelAtlas.m | 170 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 170 insertions(+)
 create mode 100755 libs/cocos2d/CCLabelAtlas.m

(limited to 'libs/cocos2d/CCLabelAtlas.m')

diff --git a/libs/cocos2d/CCLabelAtlas.m b/libs/cocos2d/CCLabelAtlas.m
new file mode 100755
index 0000000..386f8c3
--- /dev/null
+++ b/libs/cocos2d/CCLabelAtlas.m
@@ -0,0 +1,170 @@
+/*
+ * 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 "ccConfig.h"
+#import "ccMacros.h"
+#import "CCDrawingPrimitives.h"
+#import "CCLabelAtlas.h"
+#import "Support/CGPointExtension.h"
+
+
+
+@implementation CCLabelAtlas
+
+#pragma mark CCLabelAtlas - Creation & Init
++(id) labelWithString:(NSString*)string charMapFile:(NSString*)charmapfile itemWidth:(NSUInteger)w itemHeight:(NSUInteger)h startCharMap:(unsigned char)c
+{
+	return [[[self alloc] initWithString:string charMapFile:charmapfile itemWidth:w itemHeight:h startCharMap:c] autorelease];
+}
+
+// XXX DEPRECATED. Remove it in 1.0.1
++(id) labelAtlasWithString:(NSString*) string charMapFile: (NSString*) charmapfile itemWidth:(NSUInteger)w itemHeight:(NSUInteger)h startCharMap:(unsigned char)c
+{
+	return [self labelWithString:string charMapFile:charmapfile itemWidth:w itemHeight:h startCharMap:c];
+}
+
+
+-(id) initWithString:(NSString*) theString charMapFile: (NSString*) charmapfile itemWidth:(NSUInteger)w itemHeight:(NSUInteger)h startCharMap:(unsigned char)c
+{
+
+	if ((self=[super initWithTileFile:charmapfile tileWidth:w tileHeight:h itemsToRender:[theString length] ]) ) {
+
+		mapStartChar_ = c;		
+		[self setString: theString];
+	}
+
+	return self;
+}
+
+-(void) dealloc
+{
+	[string_ release];
+
+	[super dealloc];
+}
+
+#pragma mark CCLabelAtlas - Atlas generation
+
+-(void) updateAtlasValues
+{
+	NSUInteger n = [string_ length];
+	
+	ccV3F_C4B_T2F_Quad quad;
+
+	const unsigned char *s = (unsigned char*) [string_ UTF8String];
+
+	CCTexture2D *texture = [textureAtlas_ texture];
+	float textureWide = [texture pixelsWide];
+	float textureHigh = [texture pixelsHigh];
+
+	for( NSUInteger i=0; i<n; i++) {
+		unsigned char a = s[i] - mapStartChar_;
+		float row = (a % itemsPerRow_);
+		float col = (a / itemsPerRow_);
+		
+#if CC_FIX_ARTIFACTS_BY_STRECHING_TEXEL
+		// Issue #938. Don't use texStepX & texStepY
+		float left		= (2*row*itemWidth_+1)/(2*textureWide);
+		float right		= left+(itemWidth_*2-2)/(2*textureWide);
+		float top		= (2*col*itemHeight_+1)/(2*textureHigh);
+		float bottom	= top+(itemHeight_*2-2)/(2*textureHigh);
+#else
+		float left		= row*itemWidth_/textureWide;
+		float right		= left+itemWidth_/textureWide;
+		float top		= col*itemHeight_/textureHigh;
+		float bottom	= top+itemHeight_/textureHigh;
+#endif // ! CC_FIX_ARTIFACTS_BY_STRECHING_TEXEL
+		
+		quad.tl.texCoords.u = left;
+		quad.tl.texCoords.v = top;
+		quad.tr.texCoords.u = right;
+		quad.tr.texCoords.v = top;
+		quad.bl.texCoords.u = left;
+		quad.bl.texCoords.v = bottom;
+		quad.br.texCoords.u = right;
+		quad.br.texCoords.v = bottom;
+		
+		quad.bl.vertices.x = (int) (i * itemWidth_);
+		quad.bl.vertices.y = 0;
+		quad.bl.vertices.z = 0.0f;
+		quad.br.vertices.x = (int)(i * itemWidth_ + itemWidth_);
+		quad.br.vertices.y = 0;
+		quad.br.vertices.z = 0.0f;
+		quad.tl.vertices.x = (int)(i * itemWidth_);
+		quad.tl.vertices.y = (int)(itemHeight_);
+		quad.tl.vertices.z = 0.0f;
+		quad.tr.vertices.x = (int)(i * itemWidth_ + itemWidth_);
+		quad.tr.vertices.y = (int)(itemHeight_);
+		quad.tr.vertices.z = 0.0f;
+		
+		[textureAtlas_ updateQuad:&quad atIndex:i];
+	}
+}
+
+#pragma mark CCLabelAtlas - CCLabelProtocol
+
+- (void) setString:(NSString*) newString
+{
+	NSUInteger len = [newString length];
+	if( len > textureAtlas_.capacity )
+		[textureAtlas_ resizeCapacity:len];
+
+	[string_ release];
+	string_ = [newString copy];
+	[self updateAtlasValues];
+
+	CGSize s;
+	s.width = len * itemWidth_;
+	s.height = itemHeight_;
+	[self setContentSizeInPixels:s];
+	
+	self.quadsToDraw = len;
+}
+
+-(NSString*) string
+{
+	return string_;
+}
+
+#pragma mark CCLabelAtlas - DebugDraw
+
+#if CC_LABELATLAS_DEBUG_DRAW
+- (void) draw
+{
+	[super draw];
+
+	CGSize s = [self contentSize];
+	CGPoint vertices[4]={
+		ccp(0,0),ccp(s.width,0),
+		ccp(s.width,s.height),ccp(0,s.height),
+	};
+	ccDrawPoly(vertices, 4, YES);
+
+}
+#endif // CC_LABELATLAS_DEBUG_DRAW
+
+@end
-- 
cgit 1.4.1