Further Setter/Getter public API removal from Dali::Actor
[platform/core/uifw/dali-demo.git] / examples / image-scaling-irregular-grid / image-scaling-irregular-grid-example.cpp
index 7edeec6..70f662e 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 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.
@@ -45,8 +45,8 @@
 #include <algorithm>
 #include <map>
 #include <dali-toolkit/dali-toolkit.h>
-#include <dali-toolkit/devel-api/controls/buttons/button-devel.h>
 #include <iostream>
+#include <dali-toolkit/devel-api/controls/control-devel.h>
 
 // INTERNAL INCLUDES
 #include "grid-flags.h"
@@ -166,7 +166,7 @@ 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;
 
 
 /**
@@ -189,9 +189,9 @@ ImageView CreateImageView(const std::string& filename, int width, int height, Da
   map[Toolkit::ImageVisual::Property::FITTING_MODE] = fittingMode;
   imageView.SetProperty( Toolkit::ImageView::Property::IMAGE, map );
 
-  imageView.SetName( filename );
-  imageView.SetParentOrigin(ParentOrigin::CENTER);
-  imageView.SetAnchorPoint(AnchorPoint::CENTER);
+  imageView.SetProperty( Dali::Actor::Property::NAME, filename );
+  imageView.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::CENTER);
+  imageView.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::CENTER);
 
   return imageView;
 }
@@ -260,7 +260,8 @@ public:
 
   ImageScalingIrregularGridController( Application& application )
   : mApplication( application ),
-    mScrolling( false )
+    mScrolling( false ),
+    mImagesLoaded( 0 )
   {
     std::cout << "ImageScalingIrregularGridController::ImageScalingIrregularGridController" << std::endl;
 
@@ -274,6 +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 )
@@ -299,13 +315,18 @@ public:
 
     // Create an image scaling toggle button. (right of toolbar)
     Toolkit::PushButton toggleScalingButton = Toolkit::PushButton::New();
-    toggleScalingButton.SetProperty( Toolkit::DevelButton::Property::UNSELECTED_BACKGROUND_VISUAL, TOGGLE_SCALING_IMAGE );
-    toggleScalingButton.SetProperty( Toolkit::DevelButton::Property::SELECTED_BACKGROUND_VISUAL, 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 );
   }
@@ -326,8 +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 );
 
@@ -350,17 +371,17 @@ 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));
+    mScrollBarHorizontal.SetProperty( Actor::Property::ORIENTATION, Quaternion( Quaternion( Radian( 1.5f * Math::PI ), Vector3::ZAXIS) ) );
     mScrollView.Add(mScrollBarHorizontal);
 
     mScrollView.OnRelayoutSignal().Connect( this, &ImageScalingIrregularGridController::OnScrollViewRelayout );
@@ -372,7 +393,7 @@ public:
   void OnScrollViewRelayout(Actor actor)
   {
     // Make the height of the horizontal scroll bar to be the same as the width of scroll view.
-    mScrollBarHorizontal.SetSize(Vector2(0.0f, mScrollView.GetRelayoutSize( Dimension::WIDTH) ));
+    mScrollBarHorizontal.SetProperty( Actor::Property::SIZE, Vector2(0.0f, mScrollView.GetRelayoutSize( Dimension::WIDTH) ));
   }
 
   /**
@@ -432,8 +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;
@@ -442,8 +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 );
@@ -451,14 +473,23 @@ public:
       const Vector2 imagePosition = imageRegionCorner + Vector2( GRID_CELL_PADDING , GRID_CELL_PADDING ) + imageSize * 0.5f;
 
       ImageView image = CreateImageView( imageSource.configuration.path, imageSize.x, imageSize.y, fittingMode );
-      image.SetPosition( Vector3( imagePosition.x, imagePosition.y, 0 ) );
-      image.SetSize( imageSize );
+      image.SetProperty( Actor::Property::POSITION, Vector3( imagePosition.x, imagePosition.y, 0 ) );
+      image.SetProperty( Actor::Property::SIZE, imageSize );
       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;
@@ -601,6 +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;
@@ -608,21 +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;
 }