tilt-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-toolkit/dali-toolkit.h>
#include <dali/devel-api/adaptor-framework/tilt-sensor.h>
using namespace Dali;
using Dali::Toolkit::TextLabel;
// This example shows how to use sensor using a simple TextLabel
//
class TiltController : public ConnectionTracker
{
public:
TiltController(Application& application)
: mApplication(application)
{
// Connect to the Application's Init signal
mApplication.InitSignal().Connect(this, &TiltController::Create);
}
~TiltController()
{
// 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::BLUE);
mTextLabel = TextLabel::New("Tilt Sensor Demo");
mTextLabel.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
mTextLabel.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
mTextLabel.SetProperty(TextLabel::Property::HORIZONTAL_ALIGNMENT, "CENTER");
mTextLabel.SetProperty(TextLabel::Property::VERTICAL_ALIGNMENT, "CENTER");
mTextLabel.SetProperty(TextLabel::Property::TEXT_COLOR, Color::WHITE);
mTextLabel.SetProperty(TextLabel::Property::POINT_SIZE, 15.0f);
mTextLabel.SetProperty(Dali::Actor::Property::NAME, "tiltLabel");
window.Add(mTextLabel);
// Respond to a click anywhere on the window
window.GetRootLayer().TouchedSignal().Connect(this, &TiltController::OnTouch);
CreateSensor();
// Connect signals to allow Back and Escape to exit.
window.KeyEventSignal().Connect(this, &TiltController::OnKeyEvent);
}
void CreateSensor()
{
mTiltSensor = TiltSensor::Get();
if(mTiltSensor.Start())
{
// Get notifications when the device is tilted
mTiltSensor.TiltedSignal().Connect(this, &TiltController::OnTilted);
}
}
bool OnTouch(Actor actor, const TouchEvent& touch)
{
// quit the application
mApplication.Quit();
return true;
}
void OnTilted(const TiltSensor& sensor)
{
Quaternion pitchRot(Radian(Degree(sensor.GetPitch() * 90.0f)), Vector3(1, 0, 0));
Quaternion rollRot(Radian(Degree(sensor.GetRoll() * 90.0f)), Vector3(0, 1, 0));
mTextLabel.SetProperty(Actor::Property::ORIENTATION, Quaternion());
mTextLabel.RotateBy(rollRot);
mTextLabel.RotateBy(pitchRot);
;
}
/**
* @brief OnKeyEvent signal handler.
* @param[in] event The key event information
*/
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;
TiltSensor mTiltSensor;
TextLabel mTextLabel;
};
int DALI_EXPORT_API main(int argc, char** argv)
{
Application application = Application::New(&argc, &argv);
TiltController test(application);
application.MainLoop();
return 0;
}