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authorStarla Insigna <starla4444@gmail.com>2011-07-30 11:19:14 -0400
committerStarla Insigna <starla4444@gmail.com>2011-07-30 11:19:14 -0400
commit9cd57b731ab1c666d4a1cb725538fdc137763d12 (patch)
tree5bac45ae5157a1cb10c6e45500cbf72789917980 /libs/cocos2d/CCLabelAtlas.m
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Initial commit (version 0.2.1)
Diffstat (limited to 'libs/cocos2d/CCLabelAtlas.m')
-rwxr-xr-xlibs/cocos2d/CCLabelAtlas.m170
1 files changed, 170 insertions, 0 deletions
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 @@
1/*
2 * cocos2d for iPhone: http://www.cocos2d-iphone.org
3 *
4 * Copyright (c) 2008-2010 Ricardo Quesada
5 * Copyright (c) 2011 Zynga Inc.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 *
25 */
26
27
28#import "ccConfig.h"
29#import "ccMacros.h"
30#import "CCDrawingPrimitives.h"
31#import "CCLabelAtlas.h"
32#import "Support/CGPointExtension.h"
33
34
35
36@implementation CCLabelAtlas
37
38#pragma mark CCLabelAtlas - Creation & Init
39+(id) labelWithString:(NSString*)string charMapFile:(NSString*)charmapfile itemWidth:(NSUInteger)w itemHeight:(NSUInteger)h startCharMap:(unsigned char)c
40{
41 return [[[self alloc] initWithString:string charMapFile:charmapfile itemWidth:w itemHeight:h startCharMap:c] autorelease];
42}
43
44// XXX DEPRECATED. Remove it in 1.0.1
45+(id) labelAtlasWithString:(NSString*) string charMapFile: (NSString*) charmapfile itemWidth:(NSUInteger)w itemHeight:(NSUInteger)h startCharMap:(unsigned char)c
46{
47 return [self labelWithString:string charMapFile:charmapfile itemWidth:w itemHeight:h startCharMap:c];
48}
49
50
51-(id) initWithString:(NSString*) theString charMapFile: (NSString*) charmapfile itemWidth:(NSUInteger)w itemHeight:(NSUInteger)h startCharMap:(unsigned char)c
52{
53
54 if ((self=[super initWithTileFile:charmapfile tileWidth:w tileHeight:h itemsToRender:[theString length] ]) ) {
55
56 mapStartChar_ = c;
57 [self setString: theString];
58 }
59
60 return self;
61}
62
63-(void) dealloc
64{
65 [string_ release];
66
67 [super dealloc];
68}
69
70#pragma mark CCLabelAtlas - Atlas generation
71
72-(void) updateAtlasValues
73{
74 NSUInteger n = [string_ length];
75
76 ccV3F_C4B_T2F_Quad quad;
77
78 const unsigned char *s = (unsigned char*) [string_ UTF8String];
79
80 CCTexture2D *texture = [textureAtlas_ texture];
81 float textureWide = [texture pixelsWide];
82 float textureHigh = [texture pixelsHigh];
83
84 for( NSUInteger i=0; i<n; i++) {
85 unsigned char a = s[i] - mapStartChar_;
86 float row = (a % itemsPerRow_);
87 float col = (a / itemsPerRow_);
88
89#if CC_FIX_ARTIFACTS_BY_STRECHING_TEXEL
90 // Issue #938. Don't use texStepX & texStepY
91 float left = (2*row*itemWidth_+1)/(2*textureWide);
92 float right = left+(itemWidth_*2-2)/(2*textureWide);
93 float top = (2*col*itemHeight_+1)/(2*textureHigh);
94 float bottom = top+(itemHeight_*2-2)/(2*textureHigh);
95#else
96 float left = row*itemWidth_/textureWide;
97 float right = left+itemWidth_/textureWide;
98 float top = col*itemHeight_/textureHigh;
99 float bottom = top+itemHeight_/textureHigh;
100#endif // ! CC_FIX_ARTIFACTS_BY_STRECHING_TEXEL
101
102 quad.tl.texCoords.u = left;
103 quad.tl.texCoords.v = top;
104 quad.tr.texCoords.u = right;
105 quad.tr.texCoords.v = top;
106 quad.bl.texCoords.u = left;
107 quad.bl.texCoords.v = bottom;
108 quad.br.texCoords.u = right;
109 quad.br.texCoords.v = bottom;
110
111 quad.bl.vertices.x = (int) (i * itemWidth_);
112 quad.bl.vertices.y = 0;
113 quad.bl.vertices.z = 0.0f;
114 quad.br.vertices.x = (int)(i * itemWidth_ + itemWidth_);
115 quad.br.vertices.y = 0;
116 quad.br.vertices.z = 0.0f;
117 quad.tl.vertices.x = (int)(i * itemWidth_);
118 quad.tl.vertices.y = (int)(itemHeight_);
119 quad.tl.vertices.z = 0.0f;
120 quad.tr.vertices.x = (int)(i * itemWidth_ + itemWidth_);
121 quad.tr.vertices.y = (int)(itemHeight_);
122 quad.tr.vertices.z = 0.0f;
123
124 [textureAtlas_ updateQuad:&quad atIndex:i];
125 }
126}
127
128#pragma mark CCLabelAtlas - CCLabelProtocol
129
130- (void) setString:(NSString*) newString
131{
132 NSUInteger len = [newString length];
133 if( len > textureAtlas_.capacity )
134 [textureAtlas_ resizeCapacity:len];
135
136 [string_ release];
137 string_ = [newString copy];
138 [self updateAtlasValues];
139
140 CGSize s;
141 s.width = len * itemWidth_;
142 s.height = itemHeight_;
143 [self setContentSizeInPixels:s];
144
145 self.quadsToDraw = len;
146}
147
148-(NSString*) string
149{
150 return string_;
151}
152
153#pragma mark CCLabelAtlas - DebugDraw
154
155#if CC_LABELATLAS_DEBUG_DRAW
156- (void) draw
157{
158 [super draw];
159
160 CGSize s = [self contentSize];
161 CGPoint vertices[4]={
162 ccp(0,0),ccp(s.width,0),
163 ccp(s.width,s.height),ccp(0,s.height),
164 };
165 ccDrawPoly(vertices, 4, YES);
166
167}
168#endif // CC_LABELATLAS_DEBUG_DRAW
169
170@end