text-label-emojis.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/dali-toolkit.h>
#include <dali-toolkit/devel-api/controls/table-view/table-view.h>
#include <iostream>
// INTERNAL INCLUDES
#include "emoji-strings.h"
using namespace Dali;
using namespace Dali::Toolkit;
using namespace EmojiStrings;
// TODO Need to expose Text::RENDER.....
const int ATLAS_RENDERER = 0;
// This example shows how to create and display Hello World! using a simple TextActor
//
class EmojiExample : public ConnectionTracker
{
public:
typedef uint32_t SizeType;
EmojiExample(Application& application)
: mApplication(application),
mLastPoint(0.0f)
{
std::cout << "EmoticonController::EmoticonController" << std::endl;
// Connect to the Application's Init signal
mApplication.InitSignal().Connect(this, &EmojiExample::Create);
}
~EmojiExample()
{
// Nothing to do here;
}
// The Init signal is received once (only) during the Application lifetime
void Create(Application& application)
{
Window window = application.GetWindow();
window.SetBackgroundColor(Color::WHITE);
window.KeyEventSignal().Connect(this, &EmojiExample::OnKeyEvent);
mTableView = Toolkit::TableView::New(NUMBER_OF_EMOJIS, 1);
mTableView.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
mTableView.SetResizePolicy(ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT);
mTableView.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
mTableView.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
mTableView.TouchedSignal().Connect(this, &EmojiExample::OnTouch);
window.Add(mTableView);
for(unsigned int index = 0u; index < NUMBER_OF_EMOJIS; ++index)
{
const Emoji& emoji = EMOJIS[index];
const std::string text = emoji.mUTF8 + " " + emoji.mDescription;
TextLabel label = TextLabel::New(text);
label.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_CENTER);
label.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_CENTER);
label.SetProperty(TextLabel::Property::MULTI_LINE, true);
mTableView.SetFitHeight(index);
mTableView.AddChild(label, Toolkit::TableView::CellPosition(index, 0));
}
}
bool OnTouch(Actor actor, const TouchEvent& event)
{
if(1u == event.GetPointCount())
{
const PointState::Type state = event.GetState(0);
// Clamp to integer values; this is to reduce flicking due to pixel misalignment
const float localPoint = static_cast<float>(static_cast<int>(event.GetLocalPosition(0).y));
if(PointState::DOWN == state)
{
mLastPoint = localPoint;
mAnimation = Animation::New(0.25f);
}
else if(PointState::MOTION == state)
{
if(mAnimation)
{
mAnimation.AnimateBy(Property(mTableView, Actor::Property::POSITION), Vector3(0.f, localPoint - mLastPoint, 0.f), AlphaFunction::LINEAR);
mAnimation.Play();
mLastPoint = localPoint;
}
}
}
return true;
}
/**
* Main key event handler
*/
void OnKeyEvent(const KeyEvent& event)
{
if(event.GetState() == KeyEvent::DOWN)
{
if(IsKey(event, DALI_KEY_ESCAPE) || IsKey(event, DALI_KEY_BACK))
{
mApplication.Quit();
}
}
}
private:
Application& mApplication;
TableView mTableView;
Animation mAnimation;
float mLastPoint;
};
int DALI_EXPORT_API main(int argc, char** argv)
{
Application application = Application::New(&argc, &argv, DEMO_THEME_PATH);
EmojiExample test(application);
application.MainLoop();
return 0;
}