contact-cards-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.
*
*/
// EXTERNAL INCLUDES
#include <dali-toolkit/devel-api/focus-manager/keyinput-focus-manager.h>
#include <dali/public-api/adaptor-framework/application.h>
#include <dali/public-api/adaptor-framework/key.h>
#include <dali/public-api/events/key-event.h>
#include <vector>
// INTERNAL INCLUDES
#include "contact-card-layouter.h"
#include "contact-data.h"
using namespace Dali;
using namespace Dali::Toolkit;
namespace
{
const Vector4 WINDOW_COLOR(211.0f / 255.0f, 211.0f / 255.0f, 211.0f / 255.0f, 1.0f); ///< The color of the window
const char* const THEME_PATH(DEMO_STYLE_DIR "contact-cards-example-theme.json"); ///< The theme used for this example
} // unnamed namespace
/**
* @brief Creates several contact cards that animate between a folded and unfolded state.
*
* This demonstrates how different animations can start and stop at different times within the same Animation function.
* Additionally, this also shows how to morph between two different geometries.
*
* ContactCardLayouter: This class is used to lay out the different contact cards on the screen.
* This takes window size into account but does not support relayouting.
* ContactCard: This class represents each contact card on the screen.
* Two animations are set up in this class which animate several properties with multiple start and stop times.
* An overview of the two animations can be found in contact-card.cpp.
* ContactCardLayoutInfo: This is a structure to store common layout information and is created by the ContactCardLayouter and used by each ContactCard.
* ContactData: This namespace contains a table which has the contact information we use to populate the contact cards.
* ClippedImage: This namespace provides a helper function which creates an ImageView which is added to a control that has clipping.
* This clipping comes in the form of a Circle or Quad.
* The Vertex shader mixes in the Circle and Quad geometry depending on the value of a uniform float.
* Animating this float between CIRCLE_GEOMETRY and QUAD_GEOMETRY is what enables the morphing between the two geometries.
* MaskedImage: This namespace provides a helper function which creates an ImageView with a mask that matches the Circle geometry provided by ClippedImage.
* Using a mask yields much better quality than when using an image with a circle geometry, so this is ONLY used when the contact card is folded.
*/
class ContactCardController : public ConnectionTracker // Inherit from ConnectionTracker so that our signals can be automatically disconnected upon our destruction.
{
public:
/**
* @brief Constructor.
* @param[in] application A reference to the Application class.
*/
ContactCardController(Application& application)
: mApplication(application)
{
// Connect to the Application's Init signal
mApplication.InitSignal().Connect(this, &ContactCardController::Create);
}
private:
/**
* @brief Called to initialise the application content
* @param[in] application A reference to the Application class.
*/
void Create(Application& application)
{
// Set the window background color and connect to the window's key signal to allow Back and Escape to exit.
Window window = application.GetWindow();
window.SetBackgroundColor(WINDOW_COLOR);
window.KeyEventSignal().Connect(this, &ContactCardController::OnKeyEvent);
// Add all the contacts to the layouter
for(size_t i = 0; i < ContactData::TABLE_SIZE; ++i)
{
mContactCardLayouter.AddContact(window, ContactData::TABLE[i].name, ContactData::TABLE[i].address, ContactData::TABLE[i].imagePath);
}
}
/**
* @brief Called when any key event is received
*
* Will use this to quit the application if Back or the Escape key is received
* @param[in] event The key event information
*/
void OnKeyEvent(const KeyEvent& event)
{
if(event.GetState() == KeyEvent::DOWN)
{
KeyInputFocusManager keyInputFocusManager = KeyInputFocusManager::Get();
if(!keyInputFocusManager.GetCurrentFocusControl()) // Don't quit if a control has focus
{
if(IsKey(event, Dali::DALI_KEY_ESCAPE) || IsKey(event, Dali::DALI_KEY_BACK))
{
mApplication.Quit();
}
}
}
}
Application& mApplication; ///< Reference to the application class.
ContactCardLayouter mContactCardLayouter; ///< The contact card layouter.
};
int DALI_EXPORT_API main(int argc, char** argv)
{
Application application = Application::New(&argc, &argv, THEME_PATH);
ContactCardController contactCardController(application);
application.MainLoop();
return 0;
}