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 <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>
#include "shared/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;
}