color-visual-example.cpp
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/*
* Copyright (c) 2021 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-toolkit/devel-api/visuals/color-visual-properties-devel.h>
#include <dali-toolkit/devel-api/visuals/visual-properties-devel.h>
using namespace Dali;
using namespace Dali::Toolkit;
namespace
{
const char* IMAGE_FILE(DEMO_IMAGE_DIR "gallery-medium-1.jpg");
const float BLUR_RADIUS_VALUE(15.0f);
const Vector2 BLUR_OFFSET_VALUE(0.05f, 0.05f);
const Vector2 BLUR_SIZE_VALUE(1.1f, 1.1f);
const Vector2 NO_BLUR_SIZE_VALUE(1.05f, 1.05f);
const float ANIMATION_DURATION(2.0f);
constexpr Vector4 CORNER_RADIUS_VALUE(30.0f, 30.0f, 30.0f, 30.0f);
constexpr Vector4 SHADOW_CORNER_RADIUS_VALUE(33.0f, 33.0f, 33.0f, 33.0f);
const Property::Value SHADOW{
{Visual::Property::TYPE, Visual::COLOR},
{Visual::Property::MIX_COLOR, Vector4(0.0f, 0.0f, 0.0f, 0.5f)},
{Visual::Property::TRANSFORM,
Property::Map{{Visual::Transform::Property::SIZE, NO_BLUR_SIZE_VALUE},
{Visual::Transform::Property::ORIGIN, Align::CENTER},
{Visual::Transform::Property::ANCHOR_POINT, Align::CENTER}}}};
} // namespace
// This example shows the blur radius property of the color visual and animates it.
//
class ColorVisualExample : public ConnectionTracker
{
public:
ColorVisualExample(Application& application)
: mApplication(application),
mBlurEnabled(false)
{
// Connect to the Application's Init signal
mApplication.InitSignal().Connect(this, &ColorVisualExample::Create);
}
~ColorVisualExample()
{
// Nothing to do here;
}
// The Init signal is received once (only) during the Application lifetime
void Create(Application& application)
{
// Get a handle to the window
Window window = application.GetWindow();
window.SetBackgroundColor(Color::WHITE);
mImageView = ImageView::New(IMAGE_FILE);
mImageView.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
mImageView.SetProperty(Actor::Property::SIZE, Vector2(200.0f, 200.0f));
mImageView.SetProperty(DevelControl::Property::SHADOW, SHADOW);
window.Add(mImageView);
// Respond to a click anywhere on the window
window.GetRootLayer().TouchedSignal().Connect(this, &ColorVisualExample::OnTouch);
// Respond to key events
window.KeyEventSignal().Connect(this, &ColorVisualExample::OnKeyEvent);
}
bool OnTouch(Actor actor, const TouchEvent& touch)
{
if(touch.GetState(0) == PointState::UP)
{
Animation animation = Animation::New(ANIMATION_DURATION);
if(!mBlurEnabled)
{
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, ImageView::Property::IMAGE, Visual::Property::MIX_COLOR), Vector3(1.0f, 0.0f, 0.0f));
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, ImageView::Property::IMAGE, Visual::Property::OPACITY), 0.5f);
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, ImageView::Property::IMAGE, DevelVisual::Property::CORNER_RADIUS), CORNER_RADIUS_VALUE);
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, DevelControl::Property::SHADOW, ColorVisual::Property::MIX_COLOR), Vector3(0.0f, 0.0f, 1.0f));
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, DevelControl::Property::SHADOW, DevelVisual::Property::CORNER_RADIUS), SHADOW_CORNER_RADIUS_VALUE);
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, DevelControl::Property::SHADOW, DevelColorVisual::Property::BLUR_RADIUS), BLUR_RADIUS_VALUE);
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, DevelControl::Property::SHADOW, Visual::Transform::Property::OFFSET), BLUR_OFFSET_VALUE);
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, DevelControl::Property::SHADOW, Visual::Transform::Property::SIZE), BLUR_SIZE_VALUE);
}
else
{
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, ImageView::Property::IMAGE, Visual::Property::MIX_COLOR), Vector3(1.0f, 1.0f, 1.0f));
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, ImageView::Property::IMAGE, Visual::Property::OPACITY), 1.0f);
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, ImageView::Property::IMAGE, DevelVisual::Property::CORNER_RADIUS), Vector4::ZERO);
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, DevelControl::Property::SHADOW, ColorVisual::Property::MIX_COLOR), Vector3(0.0f, 0.0f, 0.0f));
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, DevelControl::Property::SHADOW, DevelVisual::Property::CORNER_RADIUS), Vector4::ZERO);
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, DevelControl::Property::SHADOW, DevelColorVisual::Property::BLUR_RADIUS), 0.0f);
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, DevelControl::Property::SHADOW, Visual::Transform::Property::OFFSET), Vector2::ZERO);
animation.AnimateTo(DevelControl::GetVisualProperty(mImageView, DevelControl::Property::SHADOW, Visual::Transform::Property::SIZE), NO_BLUR_SIZE_VALUE);
}
animation.Play();
mBlurEnabled = !mBlurEnabled;
}
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;
ImageView mImageView;
bool mBlurEnabled;
};
int DALI_EXPORT_API main(int argc, char** argv)
{
Application application = Application::New(&argc, &argv);
ColorVisualExample test(application);
application.MainLoop();
return 0;
}