1 #ifndef __DALI_TOOLKIT_SUPER_BLUR_VIEW_H__
2 #define __DALI_TOOLKIT_SUPER_BLUR_VIEW_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 * @addtogroup CAPI_DALI_TOOLKIT_SUPER_BLUR_VIEW_MODULE
28 #include <dali-toolkit/public-api/controls/control.h>
30 namespace Dali DALI_IMPORT_API
36 namespace Internal DALI_INTERNAL
42 * @brief SuperBlurView accepts an image as input, and displays/animates it with various blur strength.
46 * SuperBlurView blurView = SuperBlurView::New( blurLevels );\n
47 * blurView.SetSize(); // it is important to set the display size before set the input image!!
48 * Stage::GetCurrent().Add(blurView);\n
50 * // Set the input image
51 * Image image = Image::New(...);\n
52 * blurView.SetImage(image);\n
54 * // animate the strength of the blur - this can fade between no blur and full blur. .\n
55 * Animation blurAnimation = Animation::New( ... );\n
56 * blurAnimation.AnimateTo( Property( blurView, blurView.GetBlurStrengthPropertyIndex() ), ... );\n
57 * blurAnimation.Play();\n
59 class SuperBlurView : public Control
63 * @brief Signal type for notifications.
65 typedef SignalV2< void (SuperBlurView source) > SuperBlurViewSignal;
68 * @brief Creates an empty SuperBlurView handle.
73 * @brief Create an initialized SuperBlurView.
75 * @param[in] blurLevels The final blur strength level. It decides how many filtering passes are used to create the group of blurred images.
76 * @return A handle to a newly allocated Dali resource
78 static SuperBlurView New( unsigned int blurLevels );
81 * @brief Copy constructor.
83 * Creates another handle that points to the same real object.
84 * @param[in] handle the handle to copy from
86 SuperBlurView( const SuperBlurView& handle );
89 * @brief Assignment operator.
91 * Changes this handle to point to another real object.
92 * @param[in] rhs the handle to copy from
93 * @return a reference to this
95 SuperBlurView& operator=( const SuperBlurView& rhs );
98 * @brief Virtual destructor.
100 virtual ~SuperBlurView();
103 * @brief Downcast an Object handle to SuperBlurView.
105 * If handle points to a SuperBlurView, the downcast produces valid handle.
106 * If not, the returned handle is left uninitialized.
107 * @param[in] handle Handle to an object
108 * @return handle to a SuperBlurView or an uninitialized handle
110 static SuperBlurView DownCast( BaseHandle handle );
113 * @brief Sets a custom image to be blurred.
115 * @param[in] inputImage The image that the user wishes to blur
117 void SetImage(Image inputImage);
120 * @brief Get the index of the property that can be used to fade the blur in / out.
122 * This is the overall strength of the blur.
123 * User can use this to animate the blur. A value of 0.0 is zero blur and 1.0 is full blur. Default is 0.0.
124 * @return Index of the property that can be used to fade the blur in / out
126 Property::Index GetBlurStrengthPropertyIndex() const;
129 * @brief Set the blur strength to display the image.
131 * @param[in] blurStrength The blur strength used to display the image.
133 void SetBlurStrength( float blurStrength );
136 * @brief Get the current blur strength.
138 * @return The current blur strength
140 float GetCurrentBlurStrength() const;
143 * @brief Connect to this signal to be notified when the all the blurs have completed.
145 * @return The BlurFinished signal
147 SuperBlurViewSignal& BlurFinishedSignal();
150 * @brief Get the blurred image.
152 * Should wait for the BlurFinishedSignal before calling this method.
153 * @param[in] level Indicate which blurred image to get, must be a value between 1 and blurLevels
154 * @return The level-th blurred image
156 Image GetBlurredImage( unsigned int level );
158 public: // Not intended for application developers
161 * @brief Creates a handle using the Toolkit::Internal implementation.
163 * @param[in] implementation The Control implementation.
165 DALI_INTERNAL SuperBlurView(Internal::SuperBlurView& implementation);
168 * @brief Allows the creation of this Control from an Internal::CustomActor pointer.
170 * @param[in] internal A pointer to the internal CustomActor.
172 DALI_INTERNAL SuperBlurView(Dali::Internal::CustomActor* internal);
176 } // namespace Toolkit
184 #endif /* __DALI_TOOLKIT_SUPER_BLUR_VIEW_H__ */