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>
26 namespace Dali DALI_IMPORT_API
29 namespace Internal DALI_INTERNAL
41 AMBIENT, ///< Lights everything evenly
42 DIRECTIONAL, ///< Casts light evenly in a specific direction.
43 SPOT, ///< Casts light from a single point in the shape of a cone. Objects outside the cone are unlit. (EG: a search light)
44 POINT ///< Casts light outward from a single point in all directions. (EG: a light bulb)
48 * Encapsulates the data describing a light source
50 class Light : public BaseHandle
54 * Create an initialized Light.
55 * @param[in] name The light's name
56 * @return A handle to a newly allocated Dali resource.
58 static Light New(const std::string& name);
61 * Downcast an Object handle to Light handle. If handle points to a Light object the
62 * downcast produces valid handle. If not the returned handle is left uninitialized.
63 * @param[in] handle to An object
64 * @return handle to a Light object or an uninitialized handle
66 static Light DownCast( BaseHandle handle );
69 * Create an uninitialized light; this can be initialized with Light::New()
70 * Calling member functions with an uninitialized Dali::Object is not allowed.
82 * @copydoc Dali::BaseHandle::operator=
84 using BaseHandle::operator=;
87 * Set the light's name
88 * @param[in] name The light's name
90 void SetName(const std::string& name);
93 * Get the light's name
94 * @return The light's name
96 const std::string& GetName() const;
99 * Set the light's type
100 * @param[in] type The type of light
102 void SetType(LightType type);
105 * Get the lights type.
106 * @return The light's type
108 LightType GetType() const;
111 * Set the distances at which the light's intensity starts to fall off and reaches zero
112 * @param[in] fallOff The fall off start and end. The start is in the x component and end is in the y component.
114 void SetFallOff(const Vector2& fallOff);
117 * Get the distances at which the light's intensity starts to fall off and reaches zero.
118 * @return The distances at which the light's intensity starts to fall off, and reaches zero.
119 * See @ref SetFallOff
121 const Vector2& GetFallOff() const;
124 * Set the spotlight's inner and outer cone angles
125 * @param[in] angle The spotlight's inner and outer cone angles.
126 * The inner is in the x component and outer is in the y component.
128 void SetSpotAngle(const Vector2& angle);
131 * Get the spotlight's inner and outer cone angles
132 * @return The spotlight's inner and outer cone angles
134 const Vector2& GetSpotAngle() const;
137 * Set the ambient color for the light
138 * The color is composed of rgb
139 * @param[in] color The color to set.
141 void SetAmbientColor(const Vector3& color);
144 * Get the light's ambient color
145 * @return the light's color as rgb
147 const Vector3& GetAmbientColor() const;
150 * Set the diffuse color for the light
151 * The color is composed of rgb
152 * @param[in] color The color to set.
154 void SetDiffuseColor(const Vector3& color);
157 * Get the light's ambient color
158 * @return the light's color as rgb
160 const Vector3& GetDiffuseColor() const;
163 * Set the specular color for the light
164 * The color is composed of rgb
165 * @param[in] color The color to set.
167 void SetSpecularColor(const Vector3& color);
170 * Get the light's specular color
171 * @return the light's specular color as rgb
173 const Vector3& GetSpecularColor() const;
176 * Set the direction in which the light's rays are cast.
177 * Valid when the light's type is DIRECTIONAL (see @ref Dali::LightType).
178 * @param [in] direction The direction in which the light's rays are cast.
180 void SetDirection(const Vector3& direction);
183 * Get the direction in which the light's rays are cast.
184 * Valid when the light's type is DIRECTIONAL (see @ref LightType).
185 * @return The direction in which the light's rays are cast.
187 const Vector3& GetDirection() const;
189 public: // Not intended for application developers
192 * This constructor is used by Dali New() methods
193 * @param [in] light A pointer to a newly allocated Dali resource
195 explicit DALI_INTERNAL Light(Internal::Light* light);
200 #endif // __DALI_LIGHT_H__