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
  25 using namespace Dali;
  26 using namespace Dali::Toolkit;
  27
  28 namespace
  29 {
  30
  31 const char* BACKGROUND_IMAGE( DEMO_IMAGE_DIR "background-gradient.jpg" );
  32 const char* TOOLBAR_IMAGE( DEMO_IMAGE_DIR "top-bar.png" );
  33 const char* APPLICATION_TITLE( "Animated Vector Images" );
  34
  35 const char* IMAGE_PATH[] = {
  36     DEMO_IMAGE_DIR "insta_camera.json",
  37     DEMO_IMAGE_DIR "you're_in!.json",
  38     DEMO_IMAGE_DIR "jolly_walker.json"
  39 };
  40
  41 const unsigned int NUMBER_OF_IMAGES = 3;
  42
  43 enum CellPlacement
  44 {
  45   TOP_BUTTON,
  46   LOWER_BUTTON,
  47   IMAGE,
  48   NUMBER_OF_ROWS
  49 };
  50
  51 unsigned int GetButtonIndex( Button button )
  52 {
  53   std::string buttonName = button.GetName();
  54   unsigned int index = 0;
  55
  56   if ( buttonName != "")
  57   {
  58     index = std::stoul( buttonName );
  59   }
  60
  61   return index;
  62 }
  63
  64 }  // namespace
  65
  66 // This example shows the usage of AnimatedVectorImageVisual.
  67 // It doesn't work on Ubuntu because the visual uses the external library to render frames.
  68 class AnimatedVectorImageViewController: public ConnectionTracker
  69 {
  70  public:
  71
  72   AnimatedVectorImageViewController( Application& application )
  73     : mApplication( application )
  74   {
  75     // Connect to the Application's Init signal
  76     mApplication.InitSignal().Connect( this, &AnimatedVectorImageViewController::Create );
  77   }
  78
  79   void Create( Application& application )
  80   {
  81     // The Init signal is received once (only) during the Application lifetime
  82
  83     // Creates a default view with a default tool bar.
  84     // The view is added to the stage.
  85     mContentLayer = DemoHelper::CreateView( application,
  86                                             mView,
  87                                             mToolBar,
  88                                             BACKGROUND_IMAGE,
  89                                             TOOLBAR_IMAGE,
  90                                             APPLICATION_TITLE );
  91
  92
  93     // Create a table view to show a pair of buttons above each image.
  94     mTable = TableView::New( CellPlacement::NUMBER_OF_ROWS, NUMBER_OF_IMAGES );
  95     mTable.SetAnchorPoint( AnchorPoint::CENTER );
  96     mTable.SetParentOrigin( ParentOrigin::CENTER );
  97     mTable.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
  98     Vector3 offset( 0.9f, 0.70f, 0.0f );
  99     mTable.SetSizeModeFactor( offset );
 100     mTable.SetFitHeight(CellPlacement::TOP_BUTTON);
 101     mTable.SetFitHeight(CellPlacement::LOWER_BUTTON);
 102     mContentLayer.Add( mTable );
 103
 104     for( unsigned int x = 0; x < NUMBER_OF_IMAGES; x++ )
 105     {
 106       mPlayButtons[x] = PushButton::New();
 107       mPlayButtons[x].SetProperty( Button::Property::LABEL, "Play" );
 108       mPlayButtons[x].SetParentOrigin( ParentOrigin::TOP_CENTER );
 109       mPlayButtons[x].SetAnchorPoint( AnchorPoint::TOP_CENTER );
 110       mPlayButtons[x].ClickedSignal().Connect( this, &AnimatedVectorImageViewController::OnPlayButtonClicked );
 111       mPlayButtons[x].SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
 112       mPlayButtons[x].SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
 113       std::string s = std::to_string(x);
 114       mPlayButtons[x].SetName( s );
 115       mTable.AddChild( mPlayButtons[x], TableView::CellPosition( CellPlacement::TOP_BUTTON, x )  );
 116
 117       mPauseButtons[x] = PushButton::New();
 118       mPauseButtons[x].SetProperty( Button::Property::LABEL, "Pause" );
 119       mPauseButtons[x].SetParentOrigin( ParentOrigin::BOTTOM_CENTER );
 120       mPauseButtons[x].SetAnchorPoint( AnchorPoint::BOTTOM_CENTER );
 121       mPauseButtons[x].ClickedSignal().Connect( this, &AnimatedVectorImageViewController::OnPauseButtonClicked );
 122       mPauseButtons[x].SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
 123       mPauseButtons[x].SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
 124       mPauseButtons[x].SetName( s );
 125       mTable.AddChild( mPauseButtons[x], TableView::CellPosition( CellPlacement::LOWER_BUTTON, x )  );
 126
 127       mImageViews[x] = ImageView::New( );
 128       Property::Map imagePropertyMap;
 129       imagePropertyMap.Insert( Visual::Property::TYPE,  Visual::IMAGE );
 130       imagePropertyMap.Insert( ImageVisual::Property::URL,  IMAGE_PATH[ x ]  );
 131       mImageViews[x].SetProperty( ImageView::Property::IMAGE , imagePropertyMap );
 132
 133       mImageViews[x].SetParentOrigin( ParentOrigin::CENTER );
 134       mImageViews[x].SetAnchorPoint( AnchorPoint::CENTER );
 135       mImageViews[x].SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
 136
 137       mTable.AddChild( mImageViews[x], TableView::CellPosition( CellPlacement::IMAGE, x ) );
 138
 139       // Set changeable counter and toggle for each ImageView
 140       mImageViewPlayStatus[x] = false;
 141       mImageViewPauseStatus[x] = false;
 142     }
 143
 144     Stage::GetCurrent().KeyEventSignal().Connect(this, &AnimatedVectorImageViewController::OnKeyEvent);
 145   }
 146
 147 private:
 148
 149   bool OnPlayButtonClicked( Button button )
 150   {
 151     unsigned int buttonIndex = GetButtonIndex( button );
 152
 153     ImageView imageView =  mImageViews[buttonIndex];
 154     if( !mImageViewPlayStatus[buttonIndex] )
 155     {
 156       mPlayButtons[buttonIndex].SetProperty( Button::Property::LABEL, "Stop" );
 157
 158       DevelControl::DoAction( imageView, ImageView::Property::IMAGE, DevelAnimatedVectorImageVisual::Action::PLAY, Property::Value() );
 159     }
 160     else
 161     {
 162       mPlayButtons[buttonIndex].SetProperty( Button::Property::LABEL, "Play" );
 163
 164       DevelControl::DoAction( imageView, ImageView::Property::IMAGE, DevelAnimatedVectorImageVisual::Action::STOP, Property::Value() );
 165     }
 166
 167     mImageViewPlayStatus[buttonIndex] = !mImageViewPlayStatus[buttonIndex];
 168
 169     return true;
 170   }
 171
 172   bool OnPauseButtonClicked( Button button )
 173   {
 174     unsigned int buttonIndex = GetButtonIndex( button );
 175
 176     ImageView imageView =  mImageViews[buttonIndex];
 177     if( !mImageViewPauseStatus[buttonIndex] )
 178     {
 179       mPauseButtons[buttonIndex].SetProperty( Button::Property::LABEL, "Resume" );
 180
 181       DevelControl::DoAction( imageView, ImageView::Property::IMAGE, DevelAnimatedVectorImageVisual::Action::PAUSE, Property::Value() );
 182     }
 183     else
 184     {
 185       mPauseButtons[buttonIndex].SetProperty( Button::Property::LABEL, "Pause" );
 186
 187       DevelControl::DoAction( imageView, ImageView::Property::IMAGE, DevelAnimatedVectorImageVisual::Action::RESUME, Property::Value() );
 188     }
 189
 190     mImageViewPauseStatus[buttonIndex] = !mImageViewPauseStatus[buttonIndex];
 191
 192     return true;
 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        mPauseButtons[ NUMBER_OF_IMAGES ];
 219   bool              mImageViewPlayStatus[ NUMBER_OF_IMAGES ];
 220   bool              mImageViewPauseStatus[ NUMBER_OF_IMAGES ];
 221
 222 };
 223
 224 int DALI_EXPORT_API main( int argc, char **argv )
 225 {
 226   Application application = Application::New( &argc, &argv, DEMO_THEME_PATH );
 227   AnimatedVectorImageViewController test( application );
 228   application.MainLoop();
 229   return 0;
 230 }