/*
- * 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.
#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"
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.SetName( filename );
+ imageView.SetParentOrigin(ParentOrigin::CENTER);
+ imageView.SetAnchorPoint(AnchorPoint::CENTER);
- return actor;
+ return imageView;
}
/** Cycle the scaling mode options. */
ImageScalingIrregularGridController( Application& application )
: mApplication( application ),
- mScrolling( false )
+ mScrolling( false ),
+ mImagesLoaded( 0 )
{
std::cout << "ImageScalingIrregularGridController::ImageScalingIrregularGridController" << std::endl;
}
/**
+ * 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 )
// 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.SetAnchorPoint( AnchorPoint::CENTER );
+ mOffStageImageViews.SetParentOrigin(ParentOrigin::CENTER);
+ mOffStageImageViews.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
+
// Build the main content of the widow:
PopulateContentLayer( DEFAULT_SCALING_MODE );
}
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 );
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;
/**
* 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);
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;
}
}
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;
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;
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;
}