linear-example.cpp
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/*
* Copyright (c) 2018 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 <string>
#include "linear-example.h"
#include <dali-toolkit/devel-api/visuals/image-visual-properties-devel.h>
#include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
#include <dali-toolkit/devel-api/controls/control-devel.h>
#include <dali-toolkit/devel-api/layouting/linear-layout.h>
using namespace Dali;
using namespace Dali::Toolkit;
namespace
{
const char* const TITLE = "Linear Example";
// Button file names
const char* LTR_IMAGE( DEMO_IMAGE_DIR "icon-play.png" );
const char* LTR_SELECTED_IMAGE( DEMO_IMAGE_DIR "icon-play-selected.png" );
const char* RTL_IMAGE( DEMO_IMAGE_DIR "icon-reverse.png" );
const char* RTL_SELECTED_IMAGE( DEMO_IMAGE_DIR "icon-reverse-selected.png" );
const char* ROTATE_CLOCKWISE_IMAGE( DEMO_IMAGE_DIR "icon-reset.png" );
const char* ROTATE_CLOCKWISE_SELECTED_IMAGE( DEMO_IMAGE_DIR "icon-reset-selected.png" );
// Child image filenames
const char* IMAGE_PATH[] = {
DEMO_IMAGE_DIR "application-icon-101.png",
DEMO_IMAGE_DIR "application-icon-102.png",
DEMO_IMAGE_DIR "application-icon-103.png",
DEMO_IMAGE_DIR "application-icon-104.png"
};
const unsigned int NUMBER_OF_RESOURCES = sizeof(IMAGE_PATH) / sizeof(char*);
// Helper function to create ImageViews with given filename and size.
void CreateChildImageView( ImageView& imageView, const char* filename, Size size )
{
imageView = ImageView::New();
Property::Map imagePropertyMap;
imagePropertyMap[ Toolkit::Visual::Property::TYPE ] = Toolkit::Visual::IMAGE;
imagePropertyMap[ Toolkit::ImageVisual::Property::URL ] = filename;
imagePropertyMap[ ImageVisual::Property::DESIRED_WIDTH ] = size.width;
imagePropertyMap[ ImageVisual::Property::DESIRED_HEIGHT ] = size.height;
imageView.SetProperty(Toolkit::ImageView::Property::IMAGE , imagePropertyMap );
imageView.SetName("ImageView");
imageView.SetAnchorPoint( AnchorPoint::TOP_LEFT );
imageView.SetResizePolicy( ResizePolicy::FIXED, Dimension::ALL_DIMENSIONS );
}
} // namespace
namespace Demo
{
LinearExample::LinearExample()
: Example( TITLE ),
mLTRDirection(true)
{
}
void LinearExample::Create()
{
auto stage = Stage::GetCurrent();
mDirectionButton = PushButton::New();
mDirectionButton.SetProperty( PushButton::Property::UNSELECTED_ICON, RTL_IMAGE );
mDirectionButton.SetProperty( PushButton::Property::SELECTED_ICON, RTL_SELECTED_IMAGE );
mDirectionButton.ClickedSignal().Connect( this, &LinearExample::OnDirectionClicked );
mDirectionButton.SetParentOrigin( Vector3(0.33f, 1.0f, 0.5f ) );
mDirectionButton.SetAnchorPoint( AnchorPoint::BOTTOM_CENTER );
mDirectionButton.SetSize(75, 75);
stage.Add( mDirectionButton );
mRotateButton = PushButton::New();
mRotateButton.SetProperty( PushButton::Property::UNSELECTED_ICON, ROTATE_CLOCKWISE_IMAGE );
mRotateButton.SetProperty( PushButton::Property::SELECTED_ICON, ROTATE_CLOCKWISE_SELECTED_IMAGE );
mRotateButton.ClickedSignal().Connect( this, &LinearExample::OnRotateClicked );
mRotateButton.SetParentOrigin( Vector3(0.66f, 1.0f, 0.5f ));
mRotateButton.SetAnchorPoint( Vector3(0.5f, 1.0f, 0.5f));
mRotateButton.SetSize(75, 75);
stage.Add( mRotateButton );
// Create a linear layout
mLinearContainer = Control::New();
auto layout = LinearLayout::New();
layout.SetAnimateLayout(true);
layout.SetOrientation( LinearLayout::Orientation::VERTICAL );
DevelControl::SetLayout( mLinearContainer, layout );
mLinearContainer.SetParentOrigin( ParentOrigin::CENTER );
mLinearContainer.SetAnchorPoint( AnchorPoint::CENTER );
mLinearContainer.SetName( "LinearExample" );
stage.Add( mLinearContainer );
mLinearContainer.SetProperty( Toolkit::LayoutItem::ChildProperty::WIDTH_SPECIFICATION, ChildLayoutData::MATCH_PARENT );
mLinearContainer.SetProperty( Toolkit::LayoutItem::ChildProperty::HEIGHT_SPECIFICATION, ChildLayoutData::MATCH_PARENT );
mLinearContainer.SetProperty( Actor::Property::LAYOUT_DIRECTION, LayoutDirection::LEFT_TO_RIGHT );
for( unsigned int x = 0; x < NUMBER_OF_RESOURCES; ++x )
{
Toolkit::ImageView imageView;
CreateChildImageView( imageView, IMAGE_PATH[ x ], Size(100.0f, 100.0f) );
mLinearContainer.Add( imageView );
}
}
// Remove controls added by this example from stage
void LinearExample::Remove()
{
if ( mLinearContainer )
{
UnparentAndReset( mDirectionButton );
UnparentAndReset( mRotateButton );
UnparentAndReset( mLinearContainer);
}
}
// Mirror items in layout
bool LinearExample::OnDirectionClicked( Button button )
{
if( !mLTRDirection )
{
mDirectionButton.SetProperty( PushButton::Property::UNSELECTED_ICON, LTR_IMAGE );
mDirectionButton.SetProperty( PushButton::Property::SELECTED_ICON, LTR_SELECTED_IMAGE );
mLinearContainer.SetProperty( Actor::Property::LAYOUT_DIRECTION, LayoutDirection::LEFT_TO_RIGHT );
}
else
{
mDirectionButton.SetProperty( PushButton::Property::UNSELECTED_ICON, RTL_IMAGE );
mDirectionButton.SetProperty( PushButton::Property::SELECTED_ICON, RTL_SELECTED_IMAGE );
mLinearContainer.SetProperty( Actor::Property::LAYOUT_DIRECTION, LayoutDirection::RIGHT_TO_LEFT );
}
mLTRDirection = !mLTRDirection;
return true;
}
// Rotate layout by changing layout
bool LinearExample::OnRotateClicked( Button button )
{
auto layout = LinearLayout::DownCast( DevelControl::GetLayout( mLinearContainer ) );
if( layout.GetOrientation() == LinearLayout::Orientation::VERTICAL )
{
layout.SetOrientation( LinearLayout::Orientation::HORIZONTAL );
}
else
{
layout.SetOrientation( LinearLayout::Orientation::VERTICAL );
}
return true;
}
} // namespace Demo