text-label-multi-language-example.cpp
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/*
* Copyright (c) 2015 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.
*
*/
/**
* @file text-label-example.cpp
* @brief Basic usage of TextLabel control
*/
// INTERNAL INCLUDES
#include "vertical-layout.h"
#include "shared/multi-language-strings.h"
// EXTERNAL INCLUDES
#include <dali-toolkit/dali-toolkit.h>
#include <dali/public-api/text-abstraction/text-abstraction.h>
using namespace Dali;
using namespace Dali::Toolkit;
using namespace MultiLanguageStrings;
/**
* @brief The main class of the demo.
*/
class TextLabelMultiLanguageExample : public ConnectionTracker
{
public:
TextLabelMultiLanguageExample( Application& application )
: mApplication( application ),
mLastPoint( 0.f )
{
// Connect to the Application's Init signal
mApplication.InitSignal().Connect( this, &TextLabelMultiLanguageExample::Create );
}
~TextLabelMultiLanguageExample()
{
// Nothing to do here.
}
/**
* One-time setup in response to Application InitSignal.
*/
void Create( Application& application )
{
Stage stage = Stage::GetCurrent();
stage.KeyEventSignal().Connect(this, &TextLabelMultiLanguageExample::OnKeyEvent);
mLayout = VerticalLayout::New();
mLayout.SetParentOrigin( ParentOrigin::TOP_LEFT );
mLayout.SetAnchorPoint( AnchorPoint::TOP_LEFT );
stage.Add( mLayout );
for( unsigned int index = 0u; index < NUMBER_OF_LANGUAGES; ++index )
{
const Language& language = LANGUAGES[index];
TextLabel label = TextLabel::New();
label.SetParentOrigin( ParentOrigin::TOP_CENTER );
label.SetAnchorPoint( AnchorPoint::TOP_CENTER );
label.SetProperty( TextLabel::Property::MULTI_LINE, true );
const std::string text = language.languageName + " " + language.languageRomanName + " " + language.text;
label.SetProperty( TextLabel::Property::TEXT, text );
mLayout.AddLabel( label );
mLayout.TouchedSignal().Connect( this, &TextLabelMultiLanguageExample::OnTouchEvent );
}
const Vector2& size = Stage::GetCurrent().GetSize();
const float height = mLayout.GetHeightForWidth( size.width );
mLayout.SetSize( Size( size.width, height ) );
}
bool OnTouchEvent( Actor actor, const TouchEvent& event )
{
if( 1u == event.GetPointCount() )
{
const TouchPoint::State state = event.GetPoint(0u).state;
// Clamp to integer values; this is to reduce flicking due to pixel misalignment
const float localPoint = static_cast<float>( static_cast<int>( event.GetPoint( 0 ).local.y ) );
if( TouchPoint::Down == state )
{
mLastPoint = localPoint;
mAnimation = Animation::New( 0.25f );
}
else if( TouchPoint::Motion == state )
{
if( mAnimation )
{
mAnimation.MoveBy( mLayout, Vector3( 0.f, localPoint - mLastPoint, 0.f ), AlphaFunctions::Linear );
mAnimation.Play();
mLastPoint = localPoint;
}
}
}
return true;
}
/**
* Main key event handler
*/
void OnKeyEvent(const KeyEvent& event)
{
if(event.state == KeyEvent::Down)
{
if( IsKey( event, DALI_KEY_ESCAPE) || IsKey( event, DALI_KEY_BACK ) )
{
mApplication.Quit();
}
}
}
private:
Application& mApplication;
VerticalLayout mLayout;
Animation mAnimation;
float mLastPoint;
};
void RunTest( Application& application )
{
TextLabelMultiLanguageExample test( application );
application.MainLoop();
}
/** Entry point for Linux & Tizen applications */
int main( int argc, char **argv )
{
Application application = Application::New( &argc, &argv );
RunTest( application );
return 0;
}