1 #ifndef __DALI_LIGHT_H__
2 #define __DALI_LIGHT_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.
24 #include <dali/public-api/object/base-handle.h>
28 * The top level DALi namespace
30 namespace Dali DALI_IMPORT_API
33 namespace Internal DALI_INTERNAL
41 * @brief Light source types.
45 AMBIENT, ///< Lights everything evenly
46 DIRECTIONAL, ///< Casts light evenly in a specific direction.
47 SPOT, ///< Casts light from a single point in the shape of a cone. Objects outside the cone are unlit. (EG: a search light)
48 POINT ///< Casts light outward from a single point in all directions. (EG: a light bulb)
52 * @brief Encapsulates the data describing a light source.
54 class Light : public BaseHandle
58 * @brief Create an initialized Light.
60 * @param[in] name The light's name
61 * @return A handle to a newly allocated Dali resource.
63 static Light New(const std::string& name);
66 * @brief Downcast an Object handle to Light handle.
68 * If handle points to a Light object the downcast produces valid
69 * handle. If not the returned handle is left uninitialized.
70 * @param[in] handle to An object
71 * @return handle to a Light object or an uninitialized handle
73 static Light DownCast( BaseHandle handle );
76 * @brief Create an uninitialized light; this can be initialized with Light::New().
78 * Calling member functions with an uninitialized Dali::Object is not allowed.
85 * @brief Virtual destructor.
90 * @copydoc Dali::BaseHandle::operator=
92 using BaseHandle::operator=;
95 * @brief Set the light's name.
97 * @param[in] name The light's name
99 void SetName(const std::string& name);
102 * @brief Get the light's name.
104 * @return The light's name
106 const std::string& GetName() const;
109 * @brief Set the light's type.
111 * @param[in] type The type of light
113 void SetType(LightType type);
116 * @brief Get the lights type.
118 * @return The light's type
120 LightType GetType() const;
123 * @brief Set the distances at which the light's intensity starts to fall off and reaches zero.
125 * @param[in] fallOff The fall off start and end. The start is in the x component and end is in the y component.
127 void SetFallOff(const Vector2& fallOff);
130 * @brief Get the distances at which the light's intensity starts to fall off and reaches zero.
132 * @return The distances at which the light's intensity starts to fall off, and reaches zero.
133 * See @ref SetFallOff
135 const Vector2& GetFallOff() const;
138 * @brief Set the spotlight's inner and outer cone angles.
140 * @param[in] angle The spotlight's inner and outer cone angles.
141 * The inner is in the x component and outer is in the y component.
143 void SetSpotAngle(const Vector2& angle);
146 * @brief Get the spotlight's inner and outer cone angles.
148 * @return The spotlight's inner and outer cone angles
150 const Vector2& GetSpotAngle() const;
153 * @brief Set the ambient color for the light.
155 * The color is composed of rgb
156 * @param[in] color The color to set.
158 void SetAmbientColor(const Vector3& color);
161 * @brief Get the light's ambient color.
163 * @return the light's color as rgb
165 const Vector3& GetAmbientColor() const;
168 * @brief Set the diffuse color for the light.
170 * The color is composed of rgb
171 * @param[in] color The color to set.
173 void SetDiffuseColor(const Vector3& color);
176 * @brief Get the light's ambient color.
178 * @return the light's color as rgb
180 const Vector3& GetDiffuseColor() const;
183 * @brief Set the specular color for the light.
185 * The color is composed of rgb
186 * @param[in] color The color to set.
188 void SetSpecularColor(const Vector3& color);
191 * @brief Get the light's specular color.
193 * @return the light's specular color as rgb
195 const Vector3& GetSpecularColor() const;
198 * @brief Set the direction in which the light's rays are cast.
200 * Valid when the light's type is DIRECTIONAL (see @ref Dali::LightType).
201 * @param [in] direction The direction in which the light's rays are cast.
203 void SetDirection(const Vector3& direction);
206 * @brief Get the direction in which the light's rays are cast.
208 * Valid when the light's type is DIRECTIONAL (see @ref LightType).
209 * @return The direction in which the light's rays are cast.
211 const Vector3& GetDirection() const;
213 public: // Not intended for application developers
216 * @brief This constructor is used by Dali New() methods.
218 * @param [in] light A pointer to a newly allocated Dali resource
220 explicit DALI_INTERNAL Light(Internal::Light* light);
225 #endif // __DALI_LIGHT_H__