image-view-pixel-area-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 "shared/view.h"
using namespace Dali;
namespace
{
const char* BIG_TEST_IMAGE( DEMO_IMAGE_DIR "book-landscape-cover.jpg" );
const char* SMALL_TEST_IMAGE( DEMO_IMAGE_DIR "gallery-large-1.jpg" );
const char * const APPLICATION_TITLE( "Pixel Area & Wrap Mode" );
const char * const TOOLBAR_IMAGE( DEMO_IMAGE_DIR "top-bar.png" );
const char * const BUTTON_ICON( DEMO_IMAGE_DIR "icon-change.png" );
const char * const BUTTON_ICON_SELECTED( DEMO_IMAGE_DIR "icon-change-selected.png" );
const Vector4 ORIGINAL_PIXEL_AREA( -0.5f, -0.5f, 2.f, 2.f );
}
class ImageViewPixelAreaApp : public ConnectionTracker
{
public:
ImageViewPixelAreaApp( Application& application )
: mApplication( application ),
mIndex(0u)
{
// Connect to the Application's Init signal
mApplication.InitSignal().Connect( this, &ImageViewPixelAreaApp::Create );
}
~ImageViewPixelAreaApp()
{
// Nothing to do here;
}
private:
// The Init signal is received once (only) during the Application lifetime
void Create( Application& application )
{
// Get a handle to the window
Window window = application.GetWindow();
window.KeyEventSignal().Connect(this, &ImageViewPixelAreaApp::OnKeyEvent);
Toolkit::ToolBar toolBar;
Toolkit::Control background;
// Creates a default view with a default tool bar.
mContent = DemoHelper::CreateView( application,
background,
toolBar,
"",
TOOLBAR_IMAGE,
APPLICATION_TITLE );
// Add a button to switch the scene. (right of toolbar)
Toolkit::PushButton switchButton = Toolkit::PushButton::New();
switchButton.SetProperty( Toolkit::Button::Property::UNSELECTED_BACKGROUND_VISUAL, BUTTON_ICON );
switchButton.SetProperty( Toolkit::Button::Property::SELECTED_BACKGROUND_VISUAL, BUTTON_ICON_SELECTED );
switchButton.ClickedSignal().Connect( this, &ImageViewPixelAreaApp::OnButtonClicked );
toolBar.AddControl( switchButton,
DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage,
Toolkit::Alignment::HorizontalRight,
DemoHelper::DEFAULT_MODE_SWITCH_PADDING );
// for testing image WITH automatic atlasing
visualPropertyMap[0][ Toolkit::ImageVisual::Property::URL ] = SMALL_TEST_IMAGE;
visualPropertyMap[0][ Toolkit::ImageVisual::Property::DESIRED_WIDTH ] = 500;
visualPropertyMap[0][ Toolkit::ImageVisual::Property::DESIRED_HEIGHT ] = 500;
visualPropertyMap[0][ Toolkit::ImageVisual::Property::WRAP_MODE_U ] = WrapMode::CLAMP_TO_EDGE;
visualPropertyMap[0][ Toolkit::ImageVisual::Property::WRAP_MODE_V ] = WrapMode::MIRRORED_REPEAT;
visualPropertyMap[0][ Toolkit::ImageVisual::Property::PIXEL_AREA ] = ORIGINAL_PIXEL_AREA;
// for testing image WITHOUT automatic atlasing
visualPropertyMap[1][ Toolkit::ImageVisual::Property::URL ] = BIG_TEST_IMAGE;
visualPropertyMap[1][ Toolkit::ImageVisual::Property::DESIRED_WIDTH ] = 640;
visualPropertyMap[1][ Toolkit::ImageVisual::Property::DESIRED_HEIGHT ] = 720;
visualPropertyMap[1][ Toolkit::ImageVisual::Property::WRAP_MODE_U ] = WrapMode::MIRRORED_REPEAT;
visualPropertyMap[1][ Toolkit::ImageVisual::Property::WRAP_MODE_V ] = WrapMode::REPEAT;
visualPropertyMap[1][ Toolkit::ImageVisual::Property::PIXEL_AREA ] = ORIGINAL_PIXEL_AREA;
CreateScene( visualPropertyMap[0] );
mWrapLabel = Toolkit::TextLabel::New(" Automatic atlasing\n WrapMode: CLAMP_TO_EDGE, MIRRORED_REPEAT");
mWrapLabel.SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::BOTTOM_CENTER );
mWrapLabel.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::BOTTOM_CENTER );
mWrapLabel.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
mWrapLabel.SetProperty( Toolkit::TextLabel::Property::MULTI_LINE, true );
mWrapLabel.SetProperty( Toolkit::TextLabel::Property::TEXT_COLOR, Color::WHITE );
mContent.Add( mWrapLabel );
mPixelAreaLabel = Toolkit::TextLabel::New( " Use ImageVisual::Property::PIXEL_AREA\n " );
mPixelAreaLabel.SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_CENTER );
mPixelAreaLabel.SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::BOTTOM_CENTER );
mPixelAreaLabel.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
mPixelAreaLabel.SetProperty( Toolkit::TextLabel::Property::MULTI_LINE, true );
mPixelAreaLabel.SetProperty( Toolkit::TextLabel::Property::TEXT_COLOR, Color::WHITE );
mWrapLabel.Add( mPixelAreaLabel );
}
void CreateScene( const Property::Value& propertyMap )
{
for( int i=0; i<3;i++ )
for( int j=0; j<3; j++ )
{
mImageView[i][j] = Toolkit::ImageView::New();
mImageView[i][j].SetProperty( Toolkit::ImageView::Property::IMAGE, propertyMap );
mImageView[i][j].SetProperty( Actor::Property::POSITION, Vector2( 50.f*(i-1), 50.f*(j-1) ));
}
mImageView[1][1].SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER );
mImageView[1][1].SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::CENTER );
mImageView[1][1].SetProperty( Actor::Property::SCALE, 1.f/3.f );
mContent.Add( mImageView[1][1] );
mImageView[0][0].SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT );
mImageView[0][0].SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::BOTTOM_RIGHT );
mImageView[0][0].SetProperty( Actor::Property::POSITION, Vector2( -50.f, -50.f ));
mImageView[1][1].Add( mImageView[0][0] );
mImageView[1][0].SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_CENTER );
mImageView[1][0].SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::BOTTOM_CENTER );
mImageView[1][1].Add( mImageView[1][0] );
mImageView[2][0].SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_RIGHT );
mImageView[2][0].SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::BOTTOM_LEFT );
mImageView[1][1].Add( mImageView[2][0] );
mImageView[0][1].SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER_LEFT );
mImageView[0][1].SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::CENTER_RIGHT );
mImageView[1][1].Add( mImageView[0][1] );
mImageView[2][1].SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER_RIGHT );
mImageView[2][1].SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::CENTER_LEFT );
mImageView[1][1].Add( mImageView[2][1] );
mImageView[0][2].SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::BOTTOM_LEFT );
mImageView[0][2].SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::TOP_RIGHT );
mImageView[1][1].Add( mImageView[0][2] );
mImageView[1][2].SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::BOTTOM_CENTER );
mImageView[1][2].SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::TOP_CENTER );
mImageView[1][1].Add( mImageView[1][2] );
mImageView[2][2].SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::BOTTOM_RIGHT );
mImageView[2][2].SetProperty( Actor::Property::ANCHOR_POINT,AnchorPoint::TOP_LEFT );
mImageView[1][1].Add( mImageView[2][2] );
}
bool OnButtonClicked( Toolkit::Button button )
{
if( mAnimation )
{
mAnimation.Stop();
mAnimation.Clear();
}
mIndex = ( mIndex+1 ) % 4;
if( mIndex%2 == 0 )
{
// switch to the other image
// set the pixel area to image visual, the pixel area property is registered on the renderer
mContent.Remove( mImageView[1][1] );
CreateScene( visualPropertyMap[mIndex/2] );
if( mIndex == 0 )
{
mWrapLabel.SetProperty( Toolkit::TextLabel::Property::TEXT," Automatic atlasing\n WrapMode: CLAMP_TO_EDGE, MIRRORED_REPEAT");
}
else
{
mWrapLabel.SetProperty( Toolkit::TextLabel::Property::TEXT," No atlasing\n WrapMode: MIRRORED_REPEAT, REPEAT");
}
mPixelAreaLabel.SetProperty( Toolkit::TextLabel::Property::TEXT, " Use ImageVisual::Property::PIXEL_AREA\n " );
}
else
{
// animate the pixel area property on image view,
// the animatable pixel area property is registered on the actor, which overwrites the property on the renderer
mAnimation = Animation::New( 10.f );
float relativeSubSize = 0.33;
for( int i=0; i<3;i++ )
for( int j=0; j<3; j++ )
{
mImageView[i][j].SetProperty( Toolkit::ImageView::Property::PIXEL_AREA, ORIGINAL_PIXEL_AREA );
mAnimation.AnimateTo( Property(mImageView[i][j], Toolkit::ImageView::Property::PIXEL_AREA),
Vector4( relativeSubSize*i, relativeSubSize*j, relativeSubSize, relativeSubSize ),
AlphaFunction::BOUNCE );
}
mAnimation.SetLooping( true );
mAnimation.Play();
mPixelAreaLabel.SetProperty( Toolkit::TextLabel::Property::TEXT, " Animate ImageView::Property::PIXEL_AREA \n (Overwrite the ImageVisual property) " );
}
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) )
{
mApplication.Quit();
}
}
}
private:
Application& mApplication;
Layer mContent;
Toolkit::ImageView mImageView[3][3];
Property::Map visualPropertyMap[2];
Toolkit::TextLabel mWrapLabel;
Toolkit::TextLabel mPixelAreaLabel;
Animation mAnimation;
unsigned int mIndex;
};
int DALI_EXPORT_API main( int argc, char **argv )
{
Application application = Application::New( &argc, &argv );
ImageViewPixelAreaApp test( application );
application.MainLoop();
return 0;
}