WhirlyGlobe
1.1
A 3D interactive globe toolkit for ios
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00001 /* 00002 * LabelLayer.h 00003 * WhirlyGlobeLib 00004 * 00005 * Created by Steve Gifford on 2/7/11. 00006 * Copyright 2011 mousebird consulting 00007 * 00008 * Licensed under the Apache License, Version 2.0 (the "License"); 00009 * you may not use this file except in compliance with the License. 00010 * You may obtain a copy of the License at 00011 * http://www.apache.org/licenses/LICENSE-2.0 00012 * 00013 * Unless required by applicable law or agreed to in writing, software 00014 * distributed under the License is distributed on an "AS IS" BASIS, 00015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00016 * See the License for the specific language governing permissions and 00017 * limitations under the License. 00018 * 00019 */ 00020 00021 #import <math.h> 00022 #import <set> 00023 #import <map> 00024 #import "Identifiable.h" 00025 #import "Drawable.h" 00026 #import "DataLayer.h" 00027 #import "LayerThread.h" 00028 #import "TextureAtlas.h" 00029 #import "DrawCost.h" 00030 00031 namespace WhirlyGlobe 00032 { 00033 00035 static const int LabelDrawPriority=1000; 00036 00041 class LabelSceneRep : public Identifiable 00042 { 00043 public: 00044 LabelSceneRep() { } 00045 ~LabelSceneRep() { } 00046 00047 SimpleIDSet texIDs; // Textures we created for this 00048 SimpleIDSet drawIDs; // Drawables created for this 00049 }; 00050 typedef std::map<SimpleIdentity,LabelSceneRep *> LabelSceneRepMap; 00051 00052 } 00053 00060 @interface SingleLabel : NSObject 00061 { 00063 NSString *text; 00066 WhirlyGlobe::GeoCoord loc; 00069 NSDictionary *desc; 00071 WhirlyGlobe::SimpleIdentity iconTexture; 00072 } 00073 00074 @property (nonatomic,retain) NSString *text; 00075 @property (nonatomic,assign) WhirlyGlobe::GeoCoord loc; 00076 @property (nonatomic,retain) NSDictionary *desc; 00077 @property (nonatomic,assign) WhirlyGlobe::SimpleIdentity iconTexture; 00078 00082 - (bool)calcWidth:(float *)width height:(float *)height defaultFont:(UIFont *)font; 00083 00088 - (void)calcExtents:(NSDictionary *)topDesc corners:(Point3f *)pts norm:(Point3f *)norm; 00089 00090 @end 00091 00093 static const unsigned int LabelTextureAtlasSize = 512; 00094 00123 @interface LabelLayer : NSObject<WhirlyGlobeLayer> 00124 { 00125 WhirlyGlobeLayerThread *layerThread; 00126 WhirlyGlobe::GlobeScene *scene; 00127 00129 WhirlyGlobe::LabelSceneRepMap labelReps; 00130 } 00131 00133 - (void)startWithThread:(WhirlyGlobeLayerThread *)layerThread scene:(WhirlyGlobe::GlobeScene *)scene; 00134 00138 - (WhirlyGlobe::SimpleIdentity) addLabel:(NSString *)str loc:(WhirlyGlobe::GeoCoord)loc desc:(NSDictionary *)desc; 00139 00143 - (WhirlyGlobe::SimpleIdentity) addLabels:(NSArray *)labels desc:(NSDictionary *)desc; 00146 - (WhirlyGlobe::SimpleIdentity) addLabel:(SingleLabel *)label; 00147 00150 - (void)changeLabel:(WhirlyGlobe::SimpleIdentity)labelID desc:(NSDictionary *)dict; 00151 00154 - (DrawCost *)getCost:(WhirlyGlobe::SimpleIdentity)labelID; 00155 00157 - (void) removeLabel:(WhirlyGlobe::SimpleIdentity)labelId; 00158 00159 @end