1 #ifndef __DALI_STYLE_MONITOR_H__
2 #define __DALI_STYLE_MONITOR_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_ADAPTOR_MODULE
26 #include <boost/function.hpp>
29 #include <dali/public-api/object/base-handle.h>
30 #include <dali/public-api/signals/dali-signal-v2.h>
33 #include <dali/public-api/adaptor-framework/common/style-change.h>
35 namespace Dali DALI_IMPORT_API
38 namespace Internal DALI_INTERNAL
47 * @brief Monitors the platform for style changes.
49 * This is a handle to the adaptor's style monitor which holds the platform's style information.
50 * It provides a signal when any aspect of the default style changes on the device.
51 * @see Adaptor::GetStyleMonitor
53 class StyleMonitor : public BaseHandle
57 typedef SignalV2< void (StyleMonitor, StyleChange) > StyleChangeSignalV2; ///< StyleChange Signal type
59 public: // Creation & Destruction
62 * @brief Create an uninitialized StyleMonitor handle.
64 * Tthis can be set by retrieving the style monitor from the Adaptor
65 * or the Application classes. Calling member functions when
66 * uninitialized is not allowed.
71 * @brief Creates a copy of the handle.
73 * The copy will point to the same implementation as the original.
74 * @param[in] monitor The Style Monitor to copy from.
76 StyleMonitor(const StyleMonitor& monitor);
79 * @brief Retrieve the initialized instance of the StyleMonitor.
80 * @return Handle to StyleMonitor.
82 static StyleMonitor Get();
87 virtual ~StyleMonitor();
90 * @brief Downcast an Object handle to StyleMonitor handle.
92 * If handle points to a StyleMonitor object the downcast produces a
93 * valid handle. If not the returned handle is left uninitialized.
95 * @param[in] handle to An object @return handle to a Timer object
96 * or an uninitialized handle
98 static StyleMonitor DownCast( BaseHandle handle );
101 * @copydoc Dali::BaseHandle::operator=
103 using BaseHandle::operator=;
105 public: // Style Information
108 * @brief Retrieves the default font family.
109 * @return The default font family.
111 std::string GetDefaultFontFamily() const;
114 * @brief Retrieves the default font size
115 * @return The default font size.
117 float GetDefaultFontSize() const;
120 * @brief Retrieves the user defined Theme.
121 * @return The user defined Theme.
123 const std::string& GetTheme() const;
126 * @brief Sets an user defined Theme.
127 * @param[in] themeFilePath Path of the user defined theme
129 void SetTheme(const std::string& themeFilePath);
134 * @brief This signal is emitted whenever the style changes on the device.
136 * A callback of the following type may be connected:
138 * void YourCallbackName(StyleMonitor styleMonitor, StyleChange change);
140 * @return The signal to connect to.
142 StyleChangeSignalV2& StyleChangeSignal();
147 * @brief Assignment operator.
149 * The handle points to the same implementation as the one being copied from.
150 * @param[in] monitor The Style Monitor to copy from.
151 * @return reference to this object
153 StyleMonitor& operator=(const StyleMonitor& monitor);
156 public: // Not intended for application developers
158 * @brief This constructor is used internally to create a handle from an object pointer.
159 * @param [in] styleMonitor A pointer the internal style monitor.
161 explicit DALI_INTERNAL StyleMonitor(Internal::Adaptor::StyleMonitor* styleMonitor);
169 #endif // __DALI_STYLE_MONITOR_H__