dali-toolkit/internal/controls/scrollable/scroll-connector-impl.cpp

   1 /*
   2  * Copyright (c) 2014 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali-toolkit/internal/controls/scrollable/scroll-connector-impl.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/public-api/object/property-index-ranges.h>
  23 #include <dali/public-api/object/type-registry.h>
  24 #include <dali/public-api/object/type-registry-helper.h>
  25 #include <dali/integration-api/debug.h>
  26
  27 namespace Dali
  28 {
  29
  30 namespace Toolkit
  31 {
  32
  33 namespace Internal
  34 {
  35
  36 namespace
  37 {
  38
  39 // Setup properties, signals and actions using the type-registry.
  40 DALI_TYPE_REGISTRATION_BEGIN( Toolkit::ScrollConnector, Dali::BaseHandle, NULL )
  41
  42 DALI_SIGNAL_REGISTRATION( ScrollConnector, "domain-changed",          DOMAIN_CHANGED_SIGNAL_NAME          )
  43 DALI_SIGNAL_REGISTRATION( ScrollConnector, "scroll-position-changed", SCROLL_POSITION_CHANGED_SIGNAL_NAME )
  44
  45 DALI_TYPE_REGISTRATION_END()
  46
  47 }
  48
  49 const Property::Index ScrollConnector::SCROLL_POSITION = Dali::PROPERTY_CUSTOM_START_INDEX;
  50 const Property::Index ScrollConnector::OVERSHOOT       = Dali::PROPERTY_CUSTOM_START_INDEX + 1;
  51
  52 ScrollConnector* ScrollConnector::New()
  53 {
  54   return new ScrollConnector();
  55 }
  56
  57 void ScrollConnector::SetScrollDomain( float min, float max, float length )
  58 {
  59   mMinLimit = min;
  60   mMaxLimit = max;
  61   mContentLength = length;
  62
  63   mDomainChangedSignal.Emit( mMinLimit, mMaxLimit, mContentLength );
  64 }
  65
  66 void ScrollConnector::SetScrollPosition( float position )
  67 {
  68   mScrollPositionObject.SetProperty( Toolkit::ScrollConnector::SCROLL_POSITION, position );
  69   mScrollPositionChangedSignal.Emit( position );
  70 }
  71
  72 bool ScrollConnector::DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor )
  73 {
  74   Dali::BaseHandle handle( object );
  75
  76   bool connected( true );
  77   Toolkit::ScrollConnector scrollConnector = Toolkit::ScrollConnector::DownCast( handle );
  78
  79   if( 0 == strcmp( signalName.c_str(), DOMAIN_CHANGED_SIGNAL_NAME ) )
  80   {
  81     scrollConnector.DomainChangedSignal().Connect( tracker, functor );
  82   }
  83   else if( 0 == strcmp( signalName.c_str(), SCROLL_POSITION_CHANGED_SIGNAL_NAME ) )
  84   {
  85     scrollConnector.ScrollPositionChangedSignal().Connect( tracker, functor );
  86   }
  87   else
  88   {
  89     // signalName does not match any signal
  90     connected = false;
  91   }
  92
  93   return connected;
  94 }
  95
  96 ScrollConnector::ScrollConnector()
  97 : mMinLimit( 0.0f ),
  98   mMaxLimit( 0.0f ),
  99   mContentLength( 0.0f )
 100 {
 101   mScrollPositionObject = Handle::New();
 102
 103   mScrollPositionObject.RegisterProperty( Toolkit::ScrollConnector::SCROLL_POSITION_PROPERTY_NAME, 0.0f );
 104   mScrollPositionObject.RegisterProperty( Toolkit::ScrollConnector::OVERSHOOT_PROPERTY_NAME, 0.0f );
 105 }
 106
 107 ScrollConnector::~ScrollConnector()
 108 {
 109 }
 110
 111 } // namespace Internal
 112
 113 } // namespace Toolkit
 114
 115 } // namespace Dali