progress-bar-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 "shared/view.h"
#include <dali-toolkit/dali-toolkit.h>
#include <dali-toolkit/devel-api/controls/progress-bar/progress-bar-devel.h>
#include <dali-toolkit/devel-api/controls/table-view/table-view.h>
using namespace Dali;
using namespace Dali::Toolkit;
using Dali::Toolkit::ProgressBar;
namespace
{
const char * const THEME_PATH( DEMO_STYLE_DIR "progress-bar-example-theme.json" ); ///< The theme used for this example
const char* const BACKGROUND_IMAGE = DEMO_IMAGE_DIR "background-gradient.jpg";
const char* const TOOLBAR_IMAGE = DEMO_IMAGE_DIR "top-bar.png";
const char* const TOOLBAR_TITLE = "Progress Bar";
const Vector4 BACKGROUND_COLOUR( 1.0f, 1.0f, 1.0f, 0.15f );
// Layout sizes
const int MARGIN_SIZE = 10;
const int TOP_MARGIN = 85;
const int CIRCULAR_PROGRESS_BAR_SIZE = 64;
const unsigned int TIMER_TIMEOUT_TIME = 50;
const float PROGRESS_INCREMENT_VALUE = 0.01f;
} // namespace
/**
* @brief Shows how to create a default progress bar and custom styled progress bars.
*/
class ProgressBarExample: public ConnectionTracker
{
public:
ProgressBarExample( Application& application )
: mApplication( application )
{
// Connect to the Application's Init signal
mProgressValue = 0.0f;
mSecondaryProgressValue = 0.1f;
isDefaultTheme = true;
mApplication.InitSignal().Connect( this, &ProgressBarExample::Create );
}
private:
void Create( Application& application )
{
// The Init signal is received once (only) during the Application lifetime
// Respond to key events
application.GetWindow().KeyEventSignal().Connect( this, &ProgressBarExample::OnKeyEvent );
// Creates a default view with a default tool bar.
// The view is added to the window.
mContentLayer = DemoHelper::CreateView( application,
mView,
mToolBar,
BACKGROUND_IMAGE,
TOOLBAR_IMAGE,
TOOLBAR_TITLE );
mProgressBarDefault = ProgressBar::New();
mProgressBarDefault.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::TOP_CENTER);
mProgressBarDefault.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::TOP_CENTER);
mProgressBarDefault.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
mProgressBarDefault.SetResizePolicy(ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT);
mProgressBarDefault.ValueChangedSignal().Connect( this, &ProgressBarExample::OnValueChanged );
// Creates a progress bar in circular style
mProgressBarCircular = DevelProgressBar::New( DevelProgressBar::Style::CIRCULAR );
mProgressBarCircular.SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_CENTER );
mProgressBarCircular.SetProperty( Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_CENTER );
mProgressBarCircular.SetProperty( Actor::Property::SIZE, Vector2( CIRCULAR_PROGRESS_BAR_SIZE, CIRCULAR_PROGRESS_BAR_SIZE ) );
Toolkit::TableView contentTable = Toolkit::TableView::New(2, 1);
contentTable.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
contentTable.SetResizePolicy(ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT);
contentTable.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::TOP_LEFT);
contentTable.SetProperty( Actor::Property::PARENT_ORIGIN,ParentOrigin::TOP_LEFT);
contentTable.SetCellPadding(Size(MARGIN_SIZE, MARGIN_SIZE * 0.5f));
for( unsigned int i = 0; i < contentTable.GetRows(); ++i )
{
contentTable.SetFitHeight( i );
}
contentTable.SetProperty( Actor::Property::POSITION, Vector2( 0.0f, TOP_MARGIN ));
mContentLayer.Add( contentTable );
// Image selector for progress bar
Toolkit::TableView progressBackground = Toolkit::TableView::New( 2, 1 );
progressBackground.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
progressBackground.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
progressBackground.SetBackgroundColor( BACKGROUND_COLOUR );
progressBackground.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE ) );
progressBackground.SetRelativeWidth( 0, 1.0f );
for( unsigned int i = 0; i < progressBackground.GetRows(); ++i )
{
progressBackground.SetFitHeight( i );
}
contentTable.Add( progressBackground );
progressBackground.Add( mProgressBarDefault );
progressBackground.Add( mProgressBarCircular );
// Create buttons
Toolkit::TableView buttonBackground = Toolkit::TableView::New( 3, 1 );
buttonBackground.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
buttonBackground.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
buttonBackground.SetBackgroundColor( BACKGROUND_COLOUR );
buttonBackground.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE ) );
for( unsigned int i = 0; i < buttonBackground.GetRows(); ++i )
{
buttonBackground.SetFitHeight( i );
}
contentTable.Add( buttonBackground );
mResetProgressButton = Toolkit::PushButton::New();
mResetProgressButton.SetProperty( Toolkit::Button::Property::LABEL, "Reset" );
mResetProgressButton.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
mResetProgressButton.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
mResetProgressButton.ClickedSignal().Connect( this, &ProgressBarExample::OnResetProgressButtonSelected );
buttonBackground.Add( mResetProgressButton );
mSetIndeterminateButton = Toolkit::PushButton::New();
mSetIndeterminateButton.SetProperty( Toolkit::Button::Property::LABEL, "Toggle Indeterminate" );
mSetIndeterminateButton.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
mSetIndeterminateButton.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
mSetIndeterminateButton.ClickedSignal().Connect( this, &ProgressBarExample::OnSetIndeterminateButtonSelected );
buttonBackground.Add( mSetIndeterminateButton );
mChangeThemeButton = Toolkit::PushButton::New();
mChangeThemeButton.SetProperty( Toolkit::Button::Property::LABEL, "Change Theme" );
mChangeThemeButton.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
mChangeThemeButton.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
mChangeThemeButton.ClickedSignal().Connect( this, &ProgressBarExample::OnChangeThemeButtonSelected );
buttonBackground.Add( mChangeThemeButton );
// Create a timer to update the progress of all progress bars
mTimer = Timer::New( TIMER_TIMEOUT_TIME );
mTimer.TickSignal().Connect( this, &ProgressBarExample::OnTimerTick );
mTimer.Start();
}
bool OnTimerTick()
{
mProgressValue += PROGRESS_INCREMENT_VALUE;
mSecondaryProgressValue = mProgressValue + 0.1f;
mProgressBarDefault.SetProperty(ProgressBar::Property::PROGRESS_VALUE, mProgressValue);
mProgressBarDefault.SetProperty(ProgressBar::Property::SECONDARY_PROGRESS_VALUE, mSecondaryProgressValue);
mProgressBarCircular.SetProperty( ProgressBar::Property::PROGRESS_VALUE, mProgressValue );
mProgressBarCircular.SetProperty( ProgressBar::Property::SECONDARY_PROGRESS_VALUE, mSecondaryProgressValue );
return ( mProgressValue < 1.0f ); // Only call again if progress has NOT got to the end
}
bool OnResetProgressButtonSelected( Toolkit::Button button )
{
mProgressValue = 0.0f;
mSecondaryProgressValue = 0.1f;
mProgressBarDefault.SetProperty(ProgressBar::Property::PROGRESS_VALUE, 0.0f);
mProgressBarDefault.SetProperty(ProgressBar::Property::SECONDARY_PROGRESS_VALUE, 0.1f);
mProgressBarCircular.SetProperty( ProgressBar::Property::PROGRESS_VALUE, 0.0f );
mProgressBarCircular.SetProperty( ProgressBar::Property::SECONDARY_PROGRESS_VALUE, 0.1f );
mTimer.Start();
return true;
}
void OnValueChanged( ProgressBar progressBar, float value, float secondaryValue )
{
std::stringstream newLabel;
newLabel.precision( 2 );
newLabel << std::fixed << "current : " << value << " / loaded : " << secondaryValue;
mProgressBarDefault.SetProperty(ProgressBar::Property::LABEL_VISUAL, newLabel.str() );
}
bool OnSetIndeterminateButtonSelected( Toolkit::Button button )
{
if( mProgressBarDefault.GetProperty<bool>(ProgressBar::Property::INDETERMINATE))
{
mProgressBarDefault.SetProperty(ProgressBar::Property::INDETERMINATE, false);
mProgressBarCircular.SetProperty( ProgressBar::Property::INDETERMINATE, false );
}
else
{
mProgressBarDefault.SetProperty(ProgressBar::Property::INDETERMINATE, true);
mProgressBarCircular.SetProperty( ProgressBar::Property::INDETERMINATE, true );
}
return true;
}
bool OnChangeThemeButtonSelected( Toolkit::Button button )
{
StyleManager styleManager = StyleManager::Get();
if( isDefaultTheme )
{
styleManager.ApplyTheme( THEME_PATH );
isDefaultTheme = false;
}
else
{
styleManager.ApplyDefaultTheme();
isDefaultTheme = true;
}
return true;
}
void OnKeyEvent( const KeyEvent& event )
{
if( event.GetState() == KeyEvent::DOWN )
{
if( IsKey( event, Dali::DALI_KEY_ESCAPE ) || IsKey( event, Dali::DALI_KEY_BACK ) )
{
// Exit application when click back or escape.
mApplication.Quit();
}
}
}
// Data
Application& mApplication;
Timer mTimer;
Toolkit::Control mView; ///< The View instance.
Toolkit::ToolBar mToolBar; ///< The View's Toolbar.
Layer mContentLayer; ///< Content layer.
ProgressBar mProgressBarDefault;
ProgressBar mProgressBarCircular;
Toolkit::PushButton mResetProgressButton;
Toolkit::PushButton mSetIndeterminateButton;
Toolkit::PushButton mChangeThemeButton;
float mProgressValue;
float mSecondaryProgressValue;
bool isDefaultTheme;
};
int DALI_EXPORT_API main( int argc, char **argv )
{
Application application = Application::New( &argc, &argv );
ProgressBarExample test( application );
application.MainLoop();
return 0;
}