1 #ifndef __DALI_TOOLKIT_UIBUILDER_H__
2 #define __DALI_TOOLKIT_UIBUILDER_H__
5 // Copyright (c) 2014 Samsung Electronics Co., Ltd.
7 // Licensed under the Flora License, Version 1.0 (the License);
8 // you may not use this file except in compliance with the License.
9 // You may obtain a copy of the License at
11 // http://floralicense.org/license/
13 // Unless required by applicable law or agreed to in writing, software
14 // distributed under the License is distributed on an AS IS BASIS,
15 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 // See the License for the specific language governing permissions and
17 // limitations under the License.
21 #include <dali/dali.h>
23 namespace Dali DALI_IMPORT_API
29 namespace Internal DALI_INTERNAL
34 typedef std::map<std::string, Property::Value> PropertyValueMap;
38 * This class provides the ability to load an actor tree from a string representation.
40 * The following example is hello world in JSON.
51 * "parent-origin":[0.5,0.5,0],
58 * "type":"default-text",
59 * "text":"Hello World",
69 * The following is how to load the json data.
73 * Builder builder = Builder::New();
75 * std::string json_data(ReadFile("layout.json"));
77 * builder.LoadFromString(json_data);
79 * // 1) load all actors in the "stage" section to the root layer
80 * builder.AddActors( Stage::GetCurrent().GetRootLayer() );
82 * // or 2) create an actor from the library "styles" section
83 * TextActor actor = TextActor::DownCast( builder.CreateFromStyle( "default-text" ) );
87 class Builder : public BaseHandle
91 * Create an Builder handle; this can be initialised with Builder::New()
92 * Calling member functions with an uninitialised handle is not allowed.
97 * Creates an Builder object.
98 * @return A handle to the Builder control.
100 static Builder New();
103 * Virtual destructor.
108 * UI string data format
112 JSON, ///< String is JSON
116 * Loads a string representation of an actor tree into memory.
117 * The Actor is not automatically added to the stage.
118 * This function will raise an exception for parse and logical structure errors.
119 * @pre The Builder has been initialized.
120 * @pre Preconditions have been met for creating dali objects ie Images, Actors etc
121 * @param data A string represenation of an Actor tree
122 * @param format The string representation format ie JSON
124 void LoadFromString( const std::string& data, UIFormat format = JSON );
127 * @brief Adds user defined constants to all future style template or animation expansions
130 * PropertyValueMap map;
131 * map["IMAGE_DIRECTORY"] = "/usr/share/images";
132 * builder.AddConstants( map );
134 * @pre The Builder has been initialized.
135 * @param map The user defined constants used in template expansions.
137 void AddConstants( const PropertyValueMap& map );
140 * Creates an animation from the set of known animations
142 * Animation a = builder.CreateAnimation( "wobble");
144 * @pre The Builder has been initialized.
145 * @pre Preconditions have been met for creating dali objects ie Images, Actors etc
146 * @pre The animationName exists in the animations section of the data representation
147 * @param animationName The animation name to create
148 * @returns The base handle of the created object
150 Animation CreateAnimation( const std::string& animationName );
153 * @brief Creates an animation from the set of known animations with user defined constants
156 * PropertyValueMap map;
157 * map["ACTOR"] = actor.GetName(); // replaces '{ACTOR} in the template
158 * Animation a = builder.CreateAnimation( "wobble");
160 * @pre The Builder has been initialized.
161 * @pre Preconditions have been met for creating dali objects ie Images, Actors etc
162 * @pre The animationName exists in the animations section of the data representation
163 * @pre The map contains all the constant expansions in the style template
164 * @param animationName The animation name to create
165 * @param map The user defined constants used in style template expansion.
166 * @returns The base handle of the created object
168 Animation CreateAnimation( const std::string& animationName, const PropertyValueMap& map );
171 * @brief Creates an object (e.g. an actor) from the set of known style templates
174 * mActor.Add( Actor::DownCast(builder.CreateFromStyle( "default-text")) );
176 * @pre The Builder has been initialized.
177 * @pre Preconditions have been met for creating dali objects ie Images, Actors etc
178 * @pre The styleName has been loaded from the styles section of the data representation
179 * and contains 'type' property used to create the object.
180 * @param styleName The set of styles/properties to set on the handle object.
181 * @returns The base handle of the created object
183 BaseHandle CreateFromStyle( const std::string& styleName );
186 * @brief Creates an object from the style templates with user defined constants
189 * PropertyValueMap map;
190 * map["IMAGE_DIR"] = "/usr/share/images"; // replaces '{IMAGE_DIR} in the template
191 * mActor.Add( Actor::DownCast(builder.CreateFromStyle( "default-image", map) ) );
193 * @pre The Builder has been initialized.
194 * @pre Preconditions have been met for creating dali objects ie Images, Actors etc
195 * @pre The styleName has been loaded from the styles section of the data representation
196 * and contains 'type' property used to create the object.
197 * @pre The map contains all the constant expansions in the style template
198 * @param styleName The set of styles/properties to set on the handle object.
199 * @param map The user defined constants used in style template expansion.
200 * @returns The base handle of the created object
202 BaseHandle CreateFromStyle( const std::string& styleName, const PropertyValueMap& map );
205 * Apply a style (a collection of properties) to an actor.
206 * @pre The Builder has been initialized.
207 * @pre Preconditions have been met for creating dali objects ie Images, Actors etc
208 * @param styleName The name of the set of style properties to set on the handle object.
209 * @param handle Then handle of the object on which to set the properties.
211 void ApplyStyle( const std::string& styleName, Handle& handle );
214 * Add the actor tree in the "stage" section to the actor toActor.
215 * ie if the representation has a 'stage' section that contains a tree of
217 * builder.AddActors( Stage::GetCurrent().GetRootLayer() );
218 * will create and add the actors to the stage root layer.
219 * @param toActor The actor to add the created actors to
221 void AddActors( Actor toActor );
224 * Adds actors in the sectionName to the actor toActor.
225 * ie if the representation has a sectionName section that contains a tree of
227 * builder.AddActors( sectionName, Stage::GetCurrent().GetRootLayer() );
228 * will create and add the actors to the stage root layer.
229 * @param sectionName The section name to search for the actor tree
230 * @param toActor The actor to add the created actors to
232 void AddActors( const std::string §ionName, Actor toActor );
235 * @deprecated Font as a separate asset is no longer supported
236 * Get's a Font asset previously created at load time
237 * An empty handle is returned otherwise.
238 * @pre The Builder has been initialized.
239 * @param name The name given to a Font in the loaded representation
240 * @return A handle to a Font if found, otherwise empty.
242 Font GetFont( const std::string &name ) const;
245 * Get's a TextStyle asset previously created at load time
246 * @pre The Builder has been initialized.
247 * @param name The name given to a TextStyle in the loaded representation
248 * @return a Created TextStyle if found, otherwise return a TextStyle created by Default constructor
250 TextStyle GetTextStyle( const std::string &name ) const;
253 * @deprecated Images as a separate asset is no longer supported
254 * Get's an Image asset previously created at load time
255 * An empty handle is returned otherwise.
256 * @pre The Builder has been initialized.
257 * @param name The name given to an Image in the loaded representation
258 * @return A handle to an Image if found, otherwise empty
260 Image GetImage( const std::string &name ) const;
263 * @deprecated Actors no longer held by builder
264 * Get's an Actor previously created at load time
265 * An empty handle is returned otherwise.
266 * @pre The Builder has been initialized.
267 * @param name The name given to an Actor in the loaded representation
268 * @return A handle to an Actor if found, otherwise empty
270 Actor GetActor( const std::string &name ) const;
273 * @deprecated Animations no longer held by builder
274 * Get's an Animation previously created at load time
275 * An empty handle is returned otherwise.
276 * @pre The Builder has been initialized.
277 * @param name The name given to an Animation in the loaded representation
278 * @return A handle to an Animation if found, otherwise empty
280 Animation GetAnimation( const std::string &name ) const;
283 * Create a render task set.
284 * @pre The Builder has been initialized.
285 * @param name The library name of the render task set.
287 void CreateRenderTask( const std::string &name );
290 * Get or create ShaderEffect from the ShaderEffect instance library.
291 * An empty handle is returned otherwise.
292 * @pre The Builder has been initialized.
293 * @param name The name of a ShaderEffect in the loaded representation
294 * @return A handle to a ShaderEffect if found, otherwise empty
296 ShaderEffect GetShaderEffect( const std::string &name );
299 * Get or create FrameBufferImage from the FrameBufferImage instance library.
300 * An empty handle is returned otherwise.
301 * @pre The Builder has been initialized.
302 * @param name The name of a FrameBufferImage in the loaded representation
303 * @return A handle to a FrameBufferImage if found, otherwise empty
305 FrameBufferImage GetFrameBufferImage( const std::string &name );
308 * @deprecated. Builder no longer holds actor handles/references
309 * Provides a list of the top level actors previously created at load time
310 * @return A container of Actors found at the top level of the loaded representation
312 ActorContainer GetTopLevelActors( void ) const;
315 Builder(Internal::Builder *impl);
319 } // namespace Toolkit
323 #endif // __DALI_TOOLKIT_UIBUILDER_H__