expanding-buttons-impl.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-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(CONTROL_BEHAVIOUR_DEFAULT)),
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.SetProperty(Actor::Property::SIZE, 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;
}
} // namespace Internal
} // namespace Demo