super-blur-view-example.cpp
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/*
* Copyright (c) 2020 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.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <dali/dali.h>
#include <dali-toolkit/dali-toolkit.h>
#include <dali-toolkit/devel-api/controls/super-blur-view/super-blur-view.h>
using namespace Dali;
using Dali::Toolkit::Button;
using Dali::Toolkit::PushButton;
using Dali::Toolkit::SuperBlurView;
namespace
{
const char* const BACKGROUND_IMAGE( DEMO_IMAGE_DIR "background-4.jpg" );
const unsigned int DEFAULT_BLUR_LEVEL(5u); ///< The default blur level when creating SuperBlurView from the type registry
}
/**
* This example shows a background image which is "super blurred" while the push-button control is pressed.
*/
class SuperBlurViewExample : public ConnectionTracker
{
public:
SuperBlurViewExample( Application& application )
: mApplication( application )
{
mApplication.InitSignal().Connect( this, &SuperBlurViewExample::Create );
}
~SuperBlurViewExample() = default;
private:
void Create( Application& application )
{
Window window = application.GetWindow();
window.KeyEventSignal().Connect( this, &SuperBlurViewExample::OnKeyEvent );
mSuperBlurView = SuperBlurView::New( DEFAULT_BLUR_LEVEL );
mSuperBlurView.SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER );
mSuperBlurView.SetProperty( Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER );
mSuperBlurView.SetProperty( Actor::Property::SIZE, Vector2( 800, 1280 ) );
mSuperBlurView.SetProperty( SuperBlurView::Property::IMAGE_URL, BACKGROUND_IMAGE );
window.Add( mSuperBlurView );
mBlurAnimation = Animation::New(1.0f);
mBlurAnimation.AnimateTo( Property(mSuperBlurView, mSuperBlurView.GetBlurStrengthPropertyIndex()), 1.0f );
mClearAnimation = Animation::New(1.0f);
mClearAnimation.AnimateTo( Property(mSuperBlurView, mSuperBlurView.GetBlurStrengthPropertyIndex()), 0.0f );
mPushButton = PushButton::New();
mPushButton.SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::BOTTOM_CENTER );
mPushButton.SetProperty( Actor::Property::ANCHOR_POINT, AnchorPoint::BOTTOM_CENTER );
mPushButton.SetProperty( Button::Property::LABEL, "Blur" );
mPushButton.PressedSignal().Connect( this, &SuperBlurViewExample::OnButtonPressed );
mPushButton.ReleasedSignal().Connect( this, &SuperBlurViewExample::OnButtonReleased );
window.Add( mPushButton );
}
bool OnButtonPressed( Button button )
{
mBlurAnimation.Play();
return true;
}
bool OnButtonReleased( Button button )
{
mClearAnimation.Play();
return true;
}
void OnKeyEvent( const KeyEvent& event )
{
if ( event.GetState() == KeyEvent::Down )
{
if( IsKey( event, Dali::DALI_KEY_ESCAPE) || IsKey( event, Dali::DALI_KEY_BACK) )
{
mApplication.Quit();
}
}
}
private:
Application& mApplication;
SuperBlurView mSuperBlurView;
PushButton mPushButton;
Animation mBlurAnimation;
Animation mClearAnimation;
};
int DALI_EXPORT_API main( int argc, char **argv )
{
Application application = Application::New( &argc, &argv );
SuperBlurViewExample test( application );
application.MainLoop();
return 0;
}