text-label-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
*/
// EXTERNAL INCLUDES
#include <dali-toolkit/dali-toolkit.h>
#include <dali/public-api/text-abstraction/text-abstraction.h>
// INTERNAL INCLUDES
#include "center-layout.h"
#include "shared/multi-language-strings.h"
using namespace Dali;
using namespace Dali::Toolkit;
using namespace MultiLanguageStrings;
namespace
{
const unsigned int KEY_ZERO = 10;
const unsigned int KEY_ONE = 11;
const unsigned int KEY_M = 58;
const unsigned int KEY_L = 46;
}
/**
* @brief The main class of the demo.
*/
class TextLabelExample : public ConnectionTracker
{
public:
TextLabelExample( Application& application )
: mApplication( application ),
mLanguageId( 0u )
{
// Connect to the Application's Init signal
mApplication.InitSignal().Connect( this, &TextLabelExample::Create );
}
~TextLabelExample()
{
// Nothing to do here.
}
/**
* One-time setup in response to Application InitSignal.
*/
void Create( Application& application )
{
Stage stage = Stage::GetCurrent();
stage.SetBackgroundColor( Color::BLUE );
stage.KeyEventSignal().Connect(this, &TextLabelExample::OnKeyEvent);
Vector2 stageSize = stage.GetSize();
CenterLayout centerLayout = CenterLayout::New();
centerLayout.SetParentOrigin( ParentOrigin::CENTER );
centerLayout.SetSize( stageSize.width*0.6f, stageSize.width*0.6f );
stage.Add( centerLayout );
mLabel = TextLabel::New();
mLabel.SetBackgroundColor( Color::BLACK );
centerLayout.Add( mLabel );
mLabel.SetProperty( TextLabel::Property::MULTI_LINE, true );
mLabel.SetProperty( TextLabel::Property::TEXT, "A Quick Brown Fox Jumps Over The Lazy Dog" );
Property::Value labelText = mLabel.GetProperty( TextLabel::Property::TEXT );
std::cout << "Displaying text: \"" << labelText.Get< std::string >() << "\"" << std::endl;
}
/**
* 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();
}
else if( event.IsCtrlModifier() )
{
switch( event.keyCode )
{
case KEY_ZERO: // fall through
case KEY_ONE:
{
mLabel.SetProperty( TextLabel::Property::RENDERING_BACKEND, event.keyCode - 10 );
break;
}
case KEY_M:
{
bool multiLine = mLabel.GetProperty<bool>( TextLabel::Property::MULTI_LINE );
mLabel.SetProperty( TextLabel::Property::MULTI_LINE, !multiLine );
break;
}
case KEY_L:
{
const Language& language = LANGUAGES[ mLanguageId ];
mLabel.SetProperty( TextLabel::Property::TEXT, language.text );
if( ++mLanguageId >= NUMBER_OF_LANGUAGES )
{
mLanguageId = 0u;
}
}
}
}
}
}
private:
Application& mApplication;
TextLabel mLabel;
unsigned int mLanguageId;
};
void RunTest( Application& application )
{
TextLabelExample 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;
}