image-view-pixel-area-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.
*
*/
#include <dali-toolkit/dali-toolkit.h>
using namespace Dali;
namespace
{
const char* IMAGE_PATH[] = { DEMO_IMAGE_DIR "gallery-large-7.jpg",
DEMO_IMAGE_DIR "gallery-large-12.jpg",
DEMO_IMAGE_DIR "gallery-large-18.jpg" };
const unsigned int NUM_IMAGES = sizeof(IMAGE_PATH) / sizeof(char*);
}
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 stage
Stage stage = Stage::GetCurrent();
stage.KeyEventSignal().Connect(this, &ImageViewPixelAreaApp::OnKeyEvent);
ImageDimensions size( 510, 510 );
float subSize = 170.f;
float relativeSubSize = 0.33;
Animation animation = Animation::New( 10.f );
for( int i=0; i<3;i++ )
for( int j=0; j<3; j++ )
{
mImageView[i][j] = Toolkit::ImageView::New( IMAGE_PATH[mIndex], size );
mImageView[i][j].SetParentOrigin( ParentOrigin::CENTER );
mImageView[i][j].SetAnchorPoint(AnchorPoint::CENTER );
mImageView[i][j].SetPosition( subSize*(i-1)*1.1f, subSize*(j-1)*1.1f );
mImageView[i][j].SetSize( subSize, subSize );
stage.Add(mImageView[i][j]);
animation.AnimateTo( Property(mImageView[i][j], Toolkit::ImageView::Property::PIXEL_AREA),
Vector4( relativeSubSize*i, relativeSubSize*j, relativeSubSize, relativeSubSize ),
AlphaFunction::BOUNCE );
}
animation.SetLooping( true );
animation.Play();
// Respond to a click anywhere on the stage
stage.GetRootLayer().TouchedSignal().Connect( this, &ImageViewPixelAreaApp::OnTouch );
}
bool OnTouch( Actor actor, const TouchEvent& touch )
{
const TouchPoint &point = touch.GetPoint(0);
if(point.state == TouchPoint::Down)
{
mIndex++;
for( int i=0; i<3;i++ )
for( int j=0; j<3; j++ )
{
mImageView[i][j].SetImage( IMAGE_PATH[mIndex%NUM_IMAGES] );
}
}
return true;
}
void OnKeyEvent(const KeyEvent& event)
{
if(event.state == KeyEvent::Down)
{
if( IsKey( event, Dali::DALI_KEY_ESCAPE) || IsKey( event, Dali::DALI_KEY_BACK) )
{
mApplication.Quit();
}
}
}
private:
Application& mApplication;
Toolkit::ImageView mImageView[3][3];
unsigned int mIndex;
};
void RunTest( Application& application )
{
ImageViewPixelAreaApp 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;
}