examples/animated-vector-images/animated-vector-images-example.cpp

   1 /*
   2  * Copyright (c) 2018 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 #include <string>
  19 #include "shared/view.h"
  20 #include <dali/dali.h>
  21 #include <dali-toolkit/dali-toolkit.h>
  22 #include <dali-toolkit/devel-api/controls/control-devel.h>
  23 #include <dali-toolkit/devel-api/visuals/animated-vector-image-visual-actions-devel.h>
  24 #include <dali-toolkit/devel-api/visuals/animated-vector-image-visual-signals-devel.h>
  25 #include <dali-toolkit/devel-api/visuals/image-visual-properties-devel.h>
  26
  27 using namespace Dali;
  28 using namespace Dali::Toolkit;
  29
  30 namespace
  31 {
  32
  33 const char* BACKGROUND_IMAGE( DEMO_IMAGE_DIR "background-gradient.jpg" );
  34 const char* TOOLBAR_IMAGE( DEMO_IMAGE_DIR "top-bar.png" );
  35 const char* APPLICATION_TITLE( "Animated Vector Images" );
  36
  37 const char* IMAGE_PATH[] = {
  38     DEMO_IMAGE_DIR "insta_camera.json",
  39     DEMO_IMAGE_DIR "you're_in!.json",
  40     DEMO_IMAGE_DIR "jolly_walker.json"
  41 };
  42
  43 const unsigned int NUMBER_OF_IMAGES = 3;
  44
  45 enum CellPlacement
  46 {
  47   TOP_BUTTON,
  48   LOWER_BUTTON,
  49   IMAGE,
  50   NUMBER_OF_ROWS
  51 };
  52
  53 unsigned int GetControlIndex( Control control )
  54 {
  55   std::string controlName = control.GetName();
  56   unsigned int index = 0;
  57
  58   if ( controlName != "")
  59   {
  60     index = std::stoul( controlName );
  61   }
  62
  63   return index;
  64 }
  65
  66 }  // namespace
  67
  68 // This example shows the usage of AnimatedVectorImageVisual.
  69 // It doesn't work on Ubuntu because the visual uses the external library to render frames.
  70 class AnimatedVectorImageViewController: public ConnectionTracker
  71 {
  72  public:
  73
  74   AnimatedVectorImageViewController( Application& application )
  75     : mApplication( application )
  76   {
  77     // Connect to the Application's Init signal
  78     mApplication.InitSignal().Connect( this, &AnimatedVectorImageViewController::Create );
  79   }
  80
  81   void Create( Application& application )
  82   {
  83     // The Init signal is received once (only) during the Application lifetime
  84
  85     // Creates a default view with a default tool bar.
  86     // The view is added to the stage.
  87     mContentLayer = DemoHelper::CreateView( application,
  88                                             mView,
  89                                             mToolBar,
  90                                             BACKGROUND_IMAGE,
  91                                             TOOLBAR_IMAGE,
  92                                             APPLICATION_TITLE );
  93
  94
  95     // Create a table view to show a pair of buttons above each image.
  96     mTable = TableView::New( CellPlacement::NUMBER_OF_ROWS, NUMBER_OF_IMAGES );
  97     mTable.SetAnchorPoint( AnchorPoint::CENTER );
  98     mTable.SetParentOrigin( ParentOrigin::CENTER );
  99     mTable.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
 100     Vector3 offset( 0.9f, 0.70f, 0.0f );
 101     mTable.SetSizeModeFactor( offset );
 102     mTable.SetFitHeight(CellPlacement::TOP_BUTTON);
 103     mTable.SetFitHeight(CellPlacement::LOWER_BUTTON);
 104     mContentLayer.Add( mTable );
 105
 106     for( unsigned int x = 0; x < NUMBER_OF_IMAGES; x++ )
 107     {
 108       mPlayButtons[x] = PushButton::New();
 109       mPlayButtons[x].SetProperty( Button::Property::LABEL, "Play" );
 110       mPlayButtons[x].SetParentOrigin( ParentOrigin::TOP_CENTER );
 111       mPlayButtons[x].SetAnchorPoint( AnchorPoint::TOP_CENTER );
 112       mPlayButtons[x].ClickedSignal().Connect( this, &AnimatedVectorImageViewController::OnPlayButtonClicked );
 113       mPlayButtons[x].SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
 114       mPlayButtons[x].SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
 115       std::string s = std::to_string(x);
 116       mPlayButtons[x].SetName( s );
 117       mTable.AddChild( mPlayButtons[x], TableView::CellPosition( CellPlacement::TOP_BUTTON, x )  );
 118
 119       mStopButtons[x] = PushButton::New();
 120       mStopButtons[x].SetProperty( Button::Property::LABEL, "Stop" );
 121       mStopButtons[x].SetParentOrigin( ParentOrigin::BOTTOM_CENTER );
 122       mStopButtons[x].SetAnchorPoint( AnchorPoint::BOTTOM_CENTER );
 123       mStopButtons[x].ClickedSignal().Connect( this, &AnimatedVectorImageViewController::OnStopButtonClicked );
 124       mStopButtons[x].SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
 125       mStopButtons[x].SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
 126       mStopButtons[x].SetName( s );
 127       mTable.AddChild( mStopButtons[x], TableView::CellPosition( CellPlacement::LOWER_BUTTON, x )  );
 128
 129       mImageViews[x] = ImageView::New( );
 130       Property::Map imagePropertyMap;
 131       imagePropertyMap.Insert( Visual::Property::TYPE, Visual::IMAGE );
 132       imagePropertyMap.Insert( ImageVisual::Property::URL, IMAGE_PATH[ x ] );
 133       imagePropertyMap.Insert( DevelImageVisual::Property::LOOP_COUNT, 3 );
 134       mImageViews[x].SetProperty( ImageView::Property::IMAGE, imagePropertyMap );
 135
 136       mImageViews[x].SetParentOrigin( ParentOrigin::CENTER );
 137       mImageViews[x].SetAnchorPoint( AnchorPoint::CENTER );
 138       mImageViews[x].SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
 139       mImageViews[x].SetName( s );
 140
 141       DevelControl::VisualEventSignal( mImageViews[x] ).Connect( this, &AnimatedVectorImageViewController::OnVisualEvent );
 142
 143       mTable.AddChild( mImageViews[x], TableView::CellPosition( CellPlacement::IMAGE, x ) );
 144     }
 145
 146     Stage::GetCurrent().KeyEventSignal().Connect(this, &AnimatedVectorImageViewController::OnKeyEvent);
 147   }
 148
 149 private:
 150
 151   bool OnPlayButtonClicked( Button button )
 152   {
 153     unsigned int controlIndex = GetControlIndex( button );
 154
 155     ImageView imageView =  mImageViews[controlIndex];
 156
 157     Property::Map map = imageView.GetProperty< Property::Map >( ImageView::Property::IMAGE );
 158     Property::Value* value = map.Find( DevelImageVisual::Property::PLAY_STATE );
 159
 160     if( value->Get< int >() != static_cast< int >( DevelImageVisual::PlayState::PLAYING ) )
 161     {
 162       mPlayButtons[controlIndex].SetProperty( Button::Property::LABEL, "Pause" );
 163
 164       DevelControl::DoAction( imageView, ImageView::Property::IMAGE, DevelAnimatedVectorImageVisual::Action::PLAY, Property::Value() );
 165     }
 166     else
 167     {
 168       mPlayButtons[controlIndex].SetProperty( Button::Property::LABEL, "Play" );
 169
 170       DevelControl::DoAction( imageView, ImageView::Property::IMAGE, DevelAnimatedVectorImageVisual::Action::PAUSE, Property::Value() );
 171     }
 172
 173     return true;
 174   }
 175
 176   bool OnStopButtonClicked( Button button )
 177   {
 178     unsigned int controlIndex = GetControlIndex( button );
 179     ImageView imageView =  mImageViews[controlIndex];
 180     DevelControl::DoAction( imageView, ImageView::Property::IMAGE, DevelAnimatedVectorImageVisual::Action::STOP, Property::Value() );
 181
 182     return true;
 183   }
 184
 185   void OnVisualEvent( Control control, Dali::Property::Index visualIndex, Dali::Property::Index signalId )
 186   {
 187     unsigned int controlIndex = GetControlIndex( control );
 188
 189     if( visualIndex == ImageView::Property::IMAGE && signalId == DevelAnimatedVectorImageVisual::Signal::ANIMATION_FINISHED )
 190     {
 191       mPlayButtons[controlIndex].SetProperty( Button::Property::LABEL, "Play" );
 192     }
 193   }
 194
 195   /**
 196    * Main key event handler
 197    */
 198   void OnKeyEvent( const KeyEvent& event )
 199   {
 200     if( event.state == KeyEvent::Down )
 201     {
 202       if( IsKey( event, DALI_KEY_ESCAPE) || IsKey( event, DALI_KEY_BACK ) )
 203       {
 204         mApplication.Quit();
 205       }
 206     }
 207   }
 208
 209 private:
 210   Application&  mApplication;
 211
 212   Control           mView;                              ///< The View instance.
 213   ToolBar           mToolBar;                           ///< The View's Toolbar.
 214   Layer             mContentLayer;                      ///< Content layer
 215   TableView         mTable;
 216   ImageView         mImageViews[ NUMBER_OF_IMAGES ];
 217   PushButton        mPlayButtons[ NUMBER_OF_IMAGES ];
 218   PushButton        mStopButtons[ NUMBER_OF_IMAGES ];
 219
 220 };
 221
 222 int DALI_EXPORT_API main( int argc, char **argv )
 223 {
 224   Application application = Application::New( &argc, &argv, DEMO_THEME_PATH );
 225   AnimatedVectorImageViewController test( application );
 226   application.MainLoop();
 227   return 0;
 228 }