Remove some public Setter/Getter APIs from Dali::Actor
[platform/core/uifw/dali-demo.git] / examples / image-scaling-irregular-grid / image-scaling-irregular-grid-example.cpp
index dc982f8..05bfccd 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -46,6 +46,7 @@
 #include <map>
 #include <dali-toolkit/dali-toolkit.h>
 #include <iostream>
+#include <dali-toolkit/devel-api/controls/control-devel.h>
 
 // INTERNAL INCLUDES
 #include "grid-flags.h"
@@ -165,43 +166,34 @@ const char* IMAGE_PATHS[] = {
   NULL
 };
 const unsigned NUM_IMAGE_PATHS = sizeof(IMAGE_PATHS) / sizeof(IMAGE_PATHS[0]) - 1u;
+const unsigned int INITIAL_IMAGES_TO_LOAD = 10;
 
 
 /**
- * Creates an Image
+ * Creates an ImageView
  *
  * @param[in] filename The path of the image.
  * @param[in] width The width of the image in pixels.
  * @param[in] height The height of the image in pixels.
  * @param[in] fittingMode The mode to use when scaling the image to fit the desired dimensions.
  */
-Image CreateImage(const std::string& filename, unsigned int width, unsigned int height, Dali::FittingMode::Type fittingMode )
+ImageView CreateImageView(const std::string& filename, int width, int height, Dali::FittingMode::Type fittingMode )
 {
-#ifdef DEBUG_PRINT_DIAGNOSTICS
-    fprintf( stderr, "CreateImage(%s, %u, %u, fittingMode=%u)\n", filename.c_str(), width, height, unsigned( fittingMode ) );
-#endif
-  Image image = ResourceImage::New( filename, ImageDimensions( width, height ), fittingMode, Dali::SamplingMode::BOX_THEN_LINEAR );
 
-  return image;
-}
+  ImageView imageView = ImageView::New();
 
-/**
- * Creates an ImageView
- *
- * @param[in] filename The path of the image.
- * @param[in] width The width of the image in pixels.
- * @param[in] height The height of the image in pixels.
- * @param[in] fittingMode The mode to use when scaling the image to fit the desired dimensions.
- */
-ImageView CreateImageView(const std::string& filename, unsigned int width, unsigned int height, Dali::FittingMode::Type fittingMode )
-{
-  Image img = CreateImage( filename, width, height, fittingMode );
-  ImageView actor = ImageView::New( img );
-  actor.SetName( filename );
-  actor.SetParentOrigin(ParentOrigin::CENTER);
-  actor.SetAnchorPoint(AnchorPoint::CENTER);
+  Property::Map map;
+  map[Toolkit::ImageVisual::Property::URL] = filename;
+  map[Toolkit::ImageVisual::Property::DESIRED_WIDTH] = width;
+  map[Toolkit::ImageVisual::Property::DESIRED_HEIGHT] = height;
+  map[Toolkit::ImageVisual::Property::FITTING_MODE] = fittingMode;
+  imageView.SetProperty( Toolkit::ImageView::Property::IMAGE, map );
+
+  imageView.SetProperty( Dali::Actor::Property::NAME, filename );
+  imageView.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::CENTER);
+  imageView.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::CENTER);
 
-  return actor;
+  return imageView;
 }
 
 /** Cycle the scaling mode options. */
@@ -268,7 +260,8 @@ public:
 
   ImageScalingIrregularGridController( Application& application )
   : mApplication( application ),
-    mScrolling( false )
+    mScrolling( false ),
+    mImagesLoaded( 0 )
   {
     std::cout << "ImageScalingIrregularGridController::ImageScalingIrregularGridController" << std::endl;
 
@@ -282,6 +275,21 @@ public:
   }
 
   /**
+   * Called everytime an ImageView has loaded it's image
+   */
+  void ResourceReadySignal( Toolkit::Control control )
+  {
+    mImagesLoaded++;
+    // To allow fast startup, we only place a small number of ImageViews on stage first
+    if ( mImagesLoaded == INITIAL_IMAGES_TO_LOAD )
+    {
+      // Adding the ImageViews to the stage will trigger loading of the Images
+      mGridActor.Add( mOffStageImageViews );
+    }
+  }
+
+
+  /**
    * One-time setup in response to Application InitSignal.
    */
   void Create( Application& application )
@@ -307,13 +315,18 @@ public:
 
     // Create an image scaling toggle button. (right of toolbar)
     Toolkit::PushButton toggleScalingButton = Toolkit::PushButton::New();
-    toggleScalingButton.SetUnselectedImage( TOGGLE_SCALING_IMAGE );
-    toggleScalingButton.SetSelectedImage( TOGGLE_SCALING_IMAGE_SELECTED );
+    toggleScalingButton.SetProperty( Toolkit::Button::Property::UNSELECTED_BACKGROUND_VISUAL, TOGGLE_SCALING_IMAGE );
+    toggleScalingButton.SetProperty( Toolkit::Button::Property::SELECTED_BACKGROUND_VISUAL, TOGGLE_SCALING_IMAGE_SELECTED );
     toggleScalingButton.ClickedSignal().Connect( this, &ImageScalingIrregularGridController::OnToggleScalingTouched );
     mToolBar.AddControl( toggleScalingButton, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalRight, DemoHelper::DEFAULT_MODE_SWITCH_PADDING  );
 
     SetTitle( APPLICATION_TITLE );
 
+    mOffStageImageViews = Actor::New();
+    mOffStageImageViews.SetProperty( Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER );
+    mOffStageImageViews.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::CENTER);
+    mOffStageImageViews.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
+
     // Build the main content of the widow:
     PopulateContentLayer( DEFAULT_SCALING_MODE );
   }
@@ -334,8 +347,8 @@ public:
     mScrollView.ScrollStartedSignal().Connect( this, &ImageScalingIrregularGridController::OnScrollStarted );
     mScrollView.ScrollCompletedSignal().Connect( this, &ImageScalingIrregularGridController::OnScrollCompleted );
 
-    mScrollView.SetAnchorPoint(AnchorPoint::CENTER);
-    mScrollView.SetParentOrigin(ParentOrigin::CENTER);
+    mScrollView.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::CENTER);
+    mScrollView.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::CENTER);
 
     mScrollView.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
 
@@ -358,15 +371,15 @@ public:
 
     // Create the scroll bar
     mScrollBarVertical = ScrollBar::New(Toolkit::ScrollBar::Vertical);
-    mScrollBarVertical.SetParentOrigin(ParentOrigin::TOP_RIGHT);
-    mScrollBarVertical.SetAnchorPoint(AnchorPoint::TOP_RIGHT);
+    mScrollBarVertical.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::TOP_RIGHT);
+    mScrollBarVertical.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::TOP_RIGHT);
     mScrollBarVertical.SetResizePolicy(Dali::ResizePolicy::FILL_TO_PARENT, Dali::Dimension::HEIGHT);
     mScrollBarVertical.SetResizePolicy(Dali::ResizePolicy::FIT_TO_CHILDREN, Dali::Dimension::WIDTH);
     mScrollView.Add(mScrollBarVertical);
 
     mScrollBarHorizontal = ScrollBar::New(Toolkit::ScrollBar::Horizontal);
-    mScrollBarHorizontal.SetParentOrigin(ParentOrigin::BOTTOM_LEFT);
-    mScrollBarHorizontal.SetAnchorPoint(AnchorPoint::TOP_LEFT);
+    mScrollBarHorizontal.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::BOTTOM_LEFT);
+    mScrollBarHorizontal.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::TOP_LEFT);
     mScrollBarHorizontal.SetResizePolicy(Dali::ResizePolicy::FIT_TO_CHILDREN, Dali::Dimension::WIDTH);
     mScrollBarHorizontal.SetOrientation(Quaternion(Radian( 1.5f * Math::PI ), Vector3::ZAXIS));
     mScrollView.Add(mScrollBarHorizontal);
@@ -440,8 +453,8 @@ public:
 
     Actor gridActor = Actor::New();
     gridActor.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
-    gridActor.SetParentOrigin( ParentOrigin::CENTER );
-    gridActor.SetAnchorPoint( AnchorPoint::CENTER );
+    gridActor.SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER );
+    gridActor.SetProperty( Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER );
 
     // Work out the constants of the grid and cell dimensions and positions:
     const float cellWidth = fieldWidth / gridWidth;
@@ -450,8 +463,9 @@ public:
     outFieldHeight = actualGridHeight * cellHeight;
     const Vector2 gridOrigin = Vector2( -fieldWidth * 0.5f, -outFieldHeight * 0.5 );
 
+     unsigned int count = 0;
     // Build the image actors in their right locations in their parent's frame:
-    for( std::vector<PositionedImage>::const_iterator i = placedImages.begin(), end = placedImages.end(); i != end; ++i )
+    for( std::vector<PositionedImage>::const_iterator i = placedImages.begin(), end = placedImages.end(); i != end; ++i, ++count )
     {
       const PositionedImage& imageSource = *i;
       const Vector2 imageSize = imageSource.imageGridDims * cellSize - Vector2( GRID_CELL_PADDING * 2, GRID_CELL_PADDING * 2 );
@@ -461,12 +475,21 @@ public:
       ImageView image = CreateImageView( imageSource.configuration.path, imageSize.x, imageSize.y, fittingMode );
       image.SetPosition( Vector3( imagePosition.x, imagePosition.y, 0 ) );
       image.SetSize( imageSize );
-      image.TouchedSignal().Connect( this, &ImageScalingIrregularGridController::OnTouchImage );
+      image.TouchSignal().Connect( this, &ImageScalingIrregularGridController::OnTouchImage );
+      image.ResourceReadySignal().Connect( this, &ImageScalingIrregularGridController::ResourceReadySignal );
       mFittingModes[image.GetId()] = fittingMode;
       mResourceUrls[image.GetId()] = imageSource.configuration.path;
       mSizes[image.GetId()] = imageSize;
-
-      gridActor.Add( image );
+      if ( count < INITIAL_IMAGES_TO_LOAD )
+      {
+        gridActor.Add( image );
+      }
+      else
+      {
+        // Store the ImageView in an offstage actor until the inital batch of ImageViews have finished loading their images
+        // Required
+        mOffStageImageViews.Add( image );
+      }
     }
 
     return gridActor;
@@ -475,14 +498,13 @@ public:
  /**
   * Upon Touching an image (Release), change its scaling mode and make it spin, provided we're not scrolling.
   * @param[in] actor The actor touched
-  * @param[in] event The TouchEvent.
+  * @param[in] event The Touch information.
   */
-  bool OnTouchImage( Actor actor, const TouchEvent& event )
+  bool OnTouchImage( Actor actor, const TouchData& event )
   {
-    if( (event.points.size() > 0) && (!mScrolling) )
+    if( ( event.GetPointCount() > 0 ) && ( !mScrolling ) )
     {
-      TouchPoint point = event.points[0];
-      if(point.state == TouchPoint::Up)
+      if( event.GetState( 0 ) == PointState::UP )
       {
         // Spin the image a few times:
         Animation animation = Animation::New(SPIN_DURATION);
@@ -494,13 +516,18 @@ public:
         Dali::FittingMode::Type newMode = NextMode( mFittingModes[id] );
         const Vector2 imageSize = mSizes[actor.GetId()];
 
-        const std::string& url = mResourceUrls[id];
-        Image newImage = CreateImage( url, imageSize.width + 0.5f, imageSize.height + 0.5f, newMode );
         ImageView imageView = ImageView::DownCast( actor );
-        if(imageView)
+        if( imageView)
         {
-          imageView.SetImage( newImage );
+          Property::Map map;
+          map[Visual::Property::TYPE] = Visual::IMAGE;
+          map[ImageVisual::Property::URL] = mResourceUrls[id];
+          map[ImageVisual::Property::DESIRED_WIDTH] = imageSize.width + 0.5f;
+          map[ImageVisual::Property::DESIRED_HEIGHT] =  imageSize.height + 0.5f;
+          map[ImageVisual::Property::FITTING_MODE] = newMode;
+          imageView.SetProperty( ImageView::Property::IMAGE, map );
         }
+
         mFittingModes[id] = newMode;
       }
     }
@@ -542,8 +569,16 @@ public:
 
         const Vector2 imageSize = mSizes[ id ];
         Dali::FittingMode::Type newMode = NextMode( mFittingModes[ id ] );
-        Image newImage = CreateImage( mResourceUrls[ id ], imageSize.width, imageSize.height, newMode );
-        gridImageView.SetImage( newImage );
+
+        Property::Map map;
+        map[Visual::Property::TYPE] = Visual::IMAGE;
+        map[ImageVisual::Property::URL] = mResourceUrls[id];
+        map[ImageVisual::Property::DESIRED_WIDTH] = imageSize.width;
+        map[ImageVisual::Property::DESIRED_HEIGHT] =  imageSize.height;
+        map[ImageVisual::Property::FITTING_MODE] = newMode;
+        gridImageView.SetProperty( ImageView::Property::IMAGE, map );
+
+
 
         mFittingModes[ id ] = newMode;
 
@@ -597,6 +632,7 @@ private:
   Toolkit::ToolBar mToolBar;          ///< The View's Toolbar.
   TextLabel mTitleActor;               ///< The Toolbar's Title.
   Actor mGridActor;                   ///< The container for the grid of images
+  Actor mOffStageImageViews;          ///< ImageViews held off stage until the inital batch have loaded their images
   ScrollView mScrollView;             ///< ScrollView UI Component
   ScrollBar mScrollBarVertical;
   ScrollBar mScrollBarHorizontal;
@@ -604,21 +640,13 @@ private:
   std::map<unsigned, Dali::FittingMode::Type> mFittingModes; ///< Stores the current scaling mode of each image, keyed by image actor id.
   std::map<unsigned, std::string> mResourceUrls; ///< Stores the url of each image, keyed by image actor id.
   std::map<unsigned, Vector2> mSizes; ///< Stores the current size of each image, keyed by image actor id.
+  unsigned int mImagesLoaded;         ///< How many images have been loaded
 };
 
-void RunTest( Application& application )
-{
-  ImageScalingIrregularGridController test( application );
-
-  application.MainLoop();
-}
-
-/** Entry point for Linux & Tizen applications */
 int DALI_EXPORT_API main( int argc, char **argv )
 {
   Application application = Application::New( &argc, &argv, DEMO_THEME_PATH );
-
-  RunTest( application );
-
+  ImageScalingIrregularGridController test( application );
+  application.MainLoop();
   return 0;
 }