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);
} // namespace
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::HORIZONTAL_RIGHT,
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;
}