expanding-buttons-impl.cpp
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/*
* 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.
* 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-toolkit/dali-toolkit.h>
#include <dali-toolkit/devel-api/controls/control-devel.h>
#include <dali/public-api/animation/animation.h>
#include "expanding-buttons-impl.h"
using namespace Dali;
using namespace Dali::Toolkit;
namespace Demo
{
namespace Internal
{
namespace
{
const unsigned int GAP_BETWEEN_BUTTONS = 3;
const char* const STYLES_IMAGE = DEMO_IMAGE_DIR "FontStyleButton_Main.png";
const char* const TICK_IMAGE_IMAGE = DEMO_IMAGE_DIR "FontStyleButton_OK_02.png";
/**
* Unparent the given number of registered controls from the supplied Vector of controls.
*/
void ResetControls( std::vector< WeakHandle< Control > > controls, unsigned int numberOfButtons )
{
for( unsigned int index = 0; index < numberOfButtons; index++)
{
Dali::Toolkit::Control control = controls[index].GetHandle();
UnparentAndReset( control );
}
}
} // anonymous namespace
Internal::ExpandingButtons::ExpandingButtons()
: Control( ControlBehaviour( REQUIRES_STYLE_CHANGE_SIGNALS ) ),
mStyleButtonsHidden( false )
{
}
Internal::ExpandingButtons::~ExpandingButtons()
{
}
Demo::ExpandingButtons Internal::ExpandingButtons::New()
{
IntrusivePtr<Internal::ExpandingButtons> impl = new Internal::ExpandingButtons();
Demo::ExpandingButtons handle = Demo::ExpandingButtons( *impl );
impl->Initialize();
return handle;
}
void ExpandingButtons::OnInitialize()
{
mExpandButton = PushButton::New();
mExpandButton.ClickedSignal().Connect( this, &ExpandingButtons::OnExpandButtonClicked );
mExpandButton.SetProperty( Button::Property::TOGGLABLE, true );
mExpandButton.SetProperty( Toolkit::Button::Property::UNSELECTED_BACKGROUND_VISUAL, STYLES_IMAGE ); // Default for Styles
mExpandButton.SetProperty( Toolkit::Button::Property::SELECTED_BACKGROUND_VISUAL, TICK_IMAGE_IMAGE );
mExpandButton.SetProperty( Dali::Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT );
Self().Add( mExpandButton );
}
void ExpandingButtons::OnRelayout( const Dali::Vector2& targetSize, Dali::RelayoutContainer& container )
{
mButtonSize = targetSize;
mExpandButton.SetSize( targetSize );
}
void ExpandingButtons::RegisterButton( Dali::Toolkit::Control& control )
{
mExpandingControls.push_back( control );
}
void ExpandingButtons::Expand()
{
if ( !mExpandCollapseAnimation )
{
mExpandCollapseAnimation = Animation::New( 0.2f );
mExpandCollapseAnimation.FinishedSignal().Connect( this, &ExpandingButtons::OnExpandAnimationFinished );
}
unsigned int numberOfControls = mExpandingControls.size();
for( unsigned int index = 0; index < numberOfControls; index++ )
{
Dali::Toolkit::Control control = mExpandingControls[index].GetHandle();
if ( control )
{
Self().Add( control );
AlphaFunction focusedAlphaFunction = AlphaFunction( Vector2 ( 0.32f, 0.08f ), Vector2( 0.38f, 1.72f ) );
mExpandCollapseAnimation.AnimateTo( Property( control, Actor::Property::POSITION_X ), mButtonSize.width + ( mButtonSize.width + GAP_BETWEEN_BUTTONS ) * (index) , focusedAlphaFunction );
}
}
Self().RaiseToTop();
mStyleButtonsHidden = false;
mExpandCollapseAnimation.Play();
}
void ExpandingButtons::OnExpandAnimationFinished( Animation& animation )
{
if ( mStyleButtonsHidden )
{
unsigned int numberOfControls = mExpandingControls.size();
ResetControls( mExpandingControls, numberOfControls );
animation.Clear();
animation.Reset();
}
}
void ExpandingButtons::Collapse()
{
Demo::ExpandingButtons handle( GetOwner() );
mCollapsedSignal.Emit( handle );
mStyleButtonsHidden = true;
mExpandButton.SetProperty(Button::Property::SELECTED, false );
if ( mExpandCollapseAnimation )
{
unsigned int numberOfControls = mExpandingControls.size();
for ( unsigned int index = 0; index < numberOfControls; index++ )
{
Dali::Toolkit::Control control = mExpandingControls[index].GetHandle();
if ( control )
{
mExpandCollapseAnimation.AnimateTo( Property( control, Actor::Property::POSITION_X ), 0.0f );
}
}
mExpandCollapseAnimation.Play();
}
}
// Hide or show (expand) buttons if expand button pressed
bool ExpandingButtons::OnExpandButtonClicked( Toolkit::Button button )
{
if ( button.GetProperty( Toolkit::Button::Property::SELECTED ).Get<bool>() )
{
Expand();
}
else
{
Collapse();
}
return true;
}
Demo::ExpandingButtons::ExpandingButtonsSignalType& ExpandingButtons::CollapsingSignal()
{
return mCollapsedSignal;
}
} // Internal
} // Demo