dali-toolkit/public-api/controls/control-impl.cpp

   1 /*
   2  * Copyright (c) 2020 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali-toolkit/public-api/controls/control-impl.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/devel-api/scripting/scripting.h>
  23 #include <dali/integration-api/debug.h>
  24 #include <dali/public-api/animation/constraint.h>
  25 #include <dali/public-api/object/type-registry-helper.h>
  26 #include <dali/public-api/size-negotiation/relayout-container.h>
  27 #include <cstring> // for strcmp
  28 #include <limits>
  29 #include <stack>
  30 #include <typeinfo>
  31
  32 // INTERNAL INCLUDES
  33 #include <dali-toolkit/devel-api/controls/control-depth-index-ranges.h>
  34 #include <dali-toolkit/devel-api/controls/control-devel.h>
  35 #include <dali-toolkit/devel-api/focus-manager/keyinput-focus-manager.h>
  36 #include <dali-toolkit/devel-api/visuals/color-visual-actions-devel.h>
  37 #include <dali-toolkit/devel-api/visuals/color-visual-properties-devel.h>
  38 #include <dali-toolkit/internal/controls/control/control-data-impl.h>
  39 #include <dali-toolkit/internal/styling/style-manager-impl.h>
  40 #include <dali-toolkit/internal/visuals/color/color-visual.h>
  41 #include <dali-toolkit/internal/visuals/visual-string-constants.h>
  42 #include <dali-toolkit/public-api/align-enumerations.h>
  43 #include <dali-toolkit/public-api/controls/control.h>
  44 #include <dali-toolkit/public-api/focus-manager/keyboard-focus-manager.h>
  45 #include <dali-toolkit/public-api/styling/style-manager.h>
  46 #include <dali-toolkit/public-api/visuals/color-visual-properties.h>
  47 #include <dali-toolkit/public-api/visuals/visual-properties.h>
  48
  49 namespace Dali
  50 {
  51 namespace Toolkit
  52 {
  53 namespace Internal
  54 {
  55 namespace
  56 {
  57 #if defined(DEBUG_ENABLED)
  58 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, false, "LOG_CONTROL_VISUALS");
  59 #endif
  60
  61 /**
  62  * @brief Replace the background visual if it's a color visual with the renderIfTransparent property set as required.
  63  * @param[in] controlImpl The control implementation
  64  * @param[in] renderIfTransaparent Whether we should render if the color is transparent
  65  */
  66 void ChangeBackgroundColorVisual(Control& controlImpl, bool renderIfTransparent)
  67 {
  68   Internal::Control::Impl& controlDataImpl = Internal::Control::Impl::Get(controlImpl);
  69
  70   Toolkit::Visual::Base backgroundVisual = controlDataImpl.GetVisual(Toolkit::Control::Property::BACKGROUND);
  71   if(backgroundVisual && backgroundVisual.GetType() == Toolkit::Visual::COLOR)
  72   {
  73     Property::Map map;
  74     backgroundVisual.CreatePropertyMap(map);
  75
  76     // Only change it if it's a color visual
  77     map[Toolkit::DevelColorVisual::Property::RENDER_IF_TRANSPARENT] = renderIfTransparent;
  78     controlImpl.SetBackground(map);
  79   }
  80 }
  81
  82 /**
  83  * @brief Creates a clipping renderer if required.
  84  * (EG. If no renders exist and clipping is enabled).
  85  * @param[in] controlImpl The control implementation.
  86  */
  87 void CreateClippingRenderer(Control& controlImpl)
  88 {
  89   // We want to add a transparent background if we do not have one for clipping.
  90   Actor self(controlImpl.Self());
  91   int   clippingMode = ClippingMode::DISABLED;
  92   if(self.GetProperty(Actor::Property::CLIPPING_MODE).Get(clippingMode))
  93   {
  94     switch(clippingMode)
  95     {
  96       case ClippingMode::CLIP_CHILDREN:
  97       {
  98         if(self.GetRendererCount() == 0u)
  99         {
 100           Internal::Control::Impl& controlDataImpl = Internal::Control::Impl::Get(controlImpl);
 101           if(controlDataImpl.mVisuals.Empty())
 102           {
 103             controlImpl.SetBackgroundColor(Color::TRANSPARENT);
 104           }
 105           else
 106           {
 107             // We have visuals, check if we've set the background and re-create it to
 108             // render even if transparent (only if it's a color visual)
 109             ChangeBackgroundColorVisual(controlImpl, true);
 110           }
 111         }
 112         break;
 113       }
 114
 115       case ClippingMode::DISABLED:
 116       case ClippingMode::CLIP_TO_BOUNDING_BOX:
 117       {
 118         // If we have a background visual, check if it's a color visual and remove the render if transparent flag
 119         ChangeBackgroundColorVisual(controlImpl, false);
 120         break;
 121       }
 122     }
 123   }
 124 }
 125
 126 } // unnamed namespace
 127
 128 Toolkit::Control Control::New()
 129 {
 130   // Create the implementation, temporarily owned on stack
 131   IntrusivePtr<Control> controlImpl = new Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT));
 132
 133   // Pass ownership to handle
 134   Toolkit::Control handle(*controlImpl);
 135
 136   // Second-phase init of the implementation
 137   // This can only be done after the CustomActor connection has been made...
 138   controlImpl->Initialize();
 139
 140   return handle;
 141 }
 142
 143 void Control::SetStyleName(const std::string& styleName)
 144 {
 145   if(styleName != mImpl->mStyleName)
 146   {
 147     mImpl->mStyleName = styleName;
 148
 149     // Apply new style, if stylemanager is available
 150     Toolkit::StyleManager styleManager = Toolkit::StyleManager::Get();
 151     if(styleManager)
 152     {
 153       GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 154     }
 155   }
 156 }
 157
 158 const std::string& Control::GetStyleName() const
 159 {
 160   return mImpl->mStyleName;
 161 }
 162
 163 void Control::SetBackgroundColor(const Vector4& color)
 164 {
 165   mImpl->mBackgroundColor = color;
 166
 167   Property::Map map;
 168   map[Toolkit::Visual::Property::TYPE]           = Toolkit::Visual::COLOR;
 169   map[Toolkit::ColorVisual::Property::MIX_COLOR] = color;
 170
 171   bool renderIfTransparent = false;
 172   int  clippingMode        = ClippingMode::DISABLED;
 173   if((Self().GetProperty(Actor::Property::CLIPPING_MODE).Get(clippingMode)) &&
 174      (clippingMode == ClippingMode::CLIP_CHILDREN))
 175   {
 176     // If clipping-mode is set to CLIP_CHILDREN, then force visual to add the render even if transparent
 177     map[Toolkit::DevelColorVisual::Property::RENDER_IF_TRANSPARENT] = true;
 178     renderIfTransparent                                             = true;
 179   }
 180
 181   Toolkit::Visual::Base visual = mImpl->GetVisual(Toolkit::Control::Property::BACKGROUND);
 182   if(visual && visual.GetType() == Toolkit::Visual::COLOR)
 183   {
 184     Property::Map visualMap;
 185     visual.CreatePropertyMap(visualMap);
 186
 187     Property::Value* renderValue = visualMap.Find(Toolkit::DevelColorVisual::Property::RENDER_IF_TRANSPARENT);
 188     Property::Value* colorValue  = visualMap.Find(Toolkit::ColorVisual::Property::MIX_COLOR);
 189     if(renderValue && colorValue)
 190     {
 191       if((renderValue->Get<bool>() == true || colorValue->Get<Vector4>().a > 0.0f) && (renderIfTransparent || color.a > 0.0f))
 192       {
 193         // Update background color only
 194         mImpl->DoAction(Toolkit::Control::Property::BACKGROUND, DevelColorVisual::Action::UPDATE_PROPERTY, map);
 195         return;
 196       }
 197     }
 198   }
 199
 200   SetBackground(map);
 201 }
 202
 203 void Control::SetBackground(const Property::Map& map)
 204 {
 205   Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual(map);
 206   visual.SetName("background");
 207   if(visual)
 208   {
 209     mImpl->RegisterVisual(Toolkit::Control::Property::BACKGROUND, visual, DepthIndex::BACKGROUND);
 210
 211     // Trigger a size negotiation request that may be needed by the new visual to relayout its contents.
 212     RelayoutRequest();
 213   }
 214 }
 215
 216 void Control::ClearBackground()
 217 {
 218   mImpl->UnregisterVisual(Toolkit::Control::Property::BACKGROUND);
 219   mImpl->mBackgroundColor = Color::TRANSPARENT;
 220
 221   // Trigger a size negotiation request that may be needed when unregistering a visual.
 222   RelayoutRequest();
 223 }
 224
 225 void Control::EnableGestureDetection(GestureType::Value type)
 226 {
 227   if((type & GestureType::PINCH) && !mImpl->mPinchGestureDetector)
 228   {
 229     mImpl->mPinchGestureDetector = PinchGestureDetector::New();
 230     mImpl->mPinchGestureDetector.DetectedSignal().Connect(mImpl, &Impl::PinchDetected);
 231     mImpl->mPinchGestureDetector.Attach(Self());
 232   }
 233
 234   if((type & GestureType::PAN) && !mImpl->mPanGestureDetector)
 235   {
 236     mImpl->mPanGestureDetector = PanGestureDetector::New();
 237     mImpl->mPanGestureDetector.DetectedSignal().Connect(mImpl, &Impl::PanDetected);
 238     mImpl->mPanGestureDetector.Attach(Self());
 239   }
 240
 241   if((type & GestureType::TAP) && !mImpl->mTapGestureDetector)
 242   {
 243     mImpl->mTapGestureDetector = TapGestureDetector::New();
 244     mImpl->mTapGestureDetector.DetectedSignal().Connect(mImpl, &Impl::TapDetected);
 245     mImpl->mTapGestureDetector.Attach(Self());
 246   }
 247
 248   if((type & GestureType::LONG_PRESS) && !mImpl->mLongPressGestureDetector)
 249   {
 250     mImpl->mLongPressGestureDetector = LongPressGestureDetector::New();
 251     mImpl->mLongPressGestureDetector.DetectedSignal().Connect(mImpl, &Impl::LongPressDetected);
 252     mImpl->mLongPressGestureDetector.Attach(Self());
 253   }
 254 }
 255
 256 void Control::DisableGestureDetection(GestureType::Value type)
 257 {
 258   if((type & GestureType::PINCH) && mImpl->mPinchGestureDetector)
 259   {
 260     mImpl->mPinchGestureDetector.Detach(Self());
 261     mImpl->mPinchGestureDetector.Reset();
 262   }
 263
 264   if((type & GestureType::PAN) && mImpl->mPanGestureDetector)
 265   {
 266     mImpl->mPanGestureDetector.Detach(Self());
 267     mImpl->mPanGestureDetector.Reset();
 268   }
 269
 270   if((type & GestureType::TAP) && mImpl->mTapGestureDetector)
 271   {
 272     mImpl->mTapGestureDetector.Detach(Self());
 273     mImpl->mTapGestureDetector.Reset();
 274   }
 275
 276   if((type & GestureType::LONG_PRESS) && mImpl->mLongPressGestureDetector)
 277   {
 278     mImpl->mLongPressGestureDetector.Detach(Self());
 279     mImpl->mLongPressGestureDetector.Reset();
 280   }
 281 }
 282
 283 PinchGestureDetector Control::GetPinchGestureDetector() const
 284 {
 285   return mImpl->mPinchGestureDetector;
 286 }
 287
 288 PanGestureDetector Control::GetPanGestureDetector() const
 289 {
 290   return mImpl->mPanGestureDetector;
 291 }
 292
 293 TapGestureDetector Control::GetTapGestureDetector() const
 294 {
 295   return mImpl->mTapGestureDetector;
 296 }
 297
 298 LongPressGestureDetector Control::GetLongPressGestureDetector() const
 299 {
 300   return mImpl->mLongPressGestureDetector;
 301 }
 302
 303 void Control::SetKeyboardNavigationSupport(bool isSupported)
 304 {
 305   mImpl->mIsKeyboardNavigationSupported = isSupported;
 306 }
 307
 308 bool Control::IsKeyboardNavigationSupported()
 309 {
 310   return mImpl->mIsKeyboardNavigationSupported;
 311 }
 312
 313 void Control::SetKeyInputFocus()
 314 {
 315   if(Self().GetProperty<bool>(Actor::Property::CONNECTED_TO_SCENE))
 316   {
 317     Toolkit::KeyInputFocusManager::Get().SetFocus(Toolkit::Control::DownCast(Self()));
 318   }
 319 }
 320
 321 bool Control::HasKeyInputFocus()
 322 {
 323   bool result = false;
 324   if(Self().GetProperty<bool>(Actor::Property::CONNECTED_TO_SCENE))
 325   {
 326     Toolkit::Control control = Toolkit::KeyInputFocusManager::Get().GetCurrentFocusControl();
 327     if(Self() == control)
 328     {
 329       result = true;
 330     }
 331   }
 332   return result;
 333 }
 334
 335 void Control::ClearKeyInputFocus()
 336 {
 337   if(Self().GetProperty<bool>(Actor::Property::CONNECTED_TO_SCENE))
 338   {
 339     Toolkit::KeyInputFocusManager::Get().RemoveFocus(Toolkit::Control::DownCast(Self()));
 340   }
 341 }
 342
 343 void Control::SetAsKeyboardFocusGroup(bool isFocusGroup)
 344 {
 345   mImpl->mIsKeyboardFocusGroup = isFocusGroup;
 346
 347   // The following line will be removed when the deprecated API in KeyboardFocusManager is deleted
 348   Toolkit::KeyboardFocusManager::Get().SetAsFocusGroup(Self(), isFocusGroup);
 349 }
 350
 351 bool Control::IsKeyboardFocusGroup()
 352 {
 353   return Toolkit::KeyboardFocusManager::Get().IsFocusGroup(Self());
 354 }
 355
 356 void Control::AccessibilityActivate()
 357 {
 358   // Inform deriving classes
 359   OnAccessibilityActivated();
 360 }
 361
 362 void Control::KeyboardEnter()
 363 {
 364   // Inform deriving classes
 365   OnKeyboardEnter();
 366 }
 367
 368 bool Control::OnAccessibilityActivated()
 369 {
 370   return false; // Accessibility activation is not handled by default
 371 }
 372
 373 bool Control::OnKeyboardEnter()
 374 {
 375   return false; // Keyboard enter is not handled by default
 376 }
 377
 378 bool Control::OnAccessibilityPan(PanGesture gesture)
 379 {
 380   return false; // Accessibility pan gesture is not handled by default
 381 }
 382
 383 bool Control::OnAccessibilityValueChange(bool isIncrease)
 384 {
 385   return false; // Accessibility value change action is not handled by default
 386 }
 387
 388 bool Control::OnAccessibilityZoom()
 389 {
 390   return false; // Accessibility zoom action is not handled by default
 391 }
 392
 393 Actor Control::GetNextKeyboardFocusableActor(Actor currentFocusedActor, Toolkit::Control::KeyboardFocus::Direction direction, bool loopEnabled)
 394 {
 395   return Actor();
 396 }
 397
 398 void Control::OnKeyboardFocusChangeCommitted(Actor commitedFocusableActor)
 399 {
 400 }
 401
 402 Toolkit::Control::KeyEventSignalType& Control::KeyEventSignal()
 403 {
 404   return mImpl->mKeyEventSignal;
 405 }
 406
 407 Toolkit::Control::KeyInputFocusSignalType& Control::KeyInputFocusGainedSignal()
 408 {
 409   return mImpl->mKeyInputFocusGainedSignal;
 410 }
 411
 412 Toolkit::Control::KeyInputFocusSignalType& Control::KeyInputFocusLostSignal()
 413 {
 414   return mImpl->mKeyInputFocusLostSignal;
 415 }
 416
 417 bool Control::EmitKeyEventSignal(const KeyEvent& event)
 418 {
 419   // Guard against destruction during signal emission
 420   Dali::Toolkit::Control handle(GetOwner());
 421
 422   bool consumed = false;
 423
 424   consumed = mImpl->FilterKeyEvent(event);
 425
 426   // signals are allocated dynamically when someone connects
 427   if(!consumed && !mImpl->mKeyEventSignal.Empty())
 428   {
 429     consumed = mImpl->mKeyEventSignal.Emit(handle, event);
 430   }
 431
 432   if(!consumed)
 433   {
 434     // Notification for derived classes
 435     consumed = OnKeyEvent(event);
 436   }
 437
 438   return consumed;
 439 }
 440
 441 Control::Control(ControlBehaviour behaviourFlags)
 442 : CustomActorImpl(static_cast<ActorFlags>(behaviourFlags)),
 443   mImpl(new Impl(*this))
 444 {
 445   mImpl->mFlags = behaviourFlags;
 446 }
 447
 448 Control::~Control()
 449 {
 450   delete mImpl;
 451 }
 452
 453 void Control::Initialize()
 454 {
 455   // Call deriving classes so initialised before styling is applied to them.
 456   OnInitialize();
 457
 458   if(!(mImpl->mFlags & DISABLE_STYLE_CHANGE_SIGNALS))
 459   {
 460     Toolkit::StyleManager styleManager = StyleManager::Get();
 461
 462     // if stylemanager is available
 463     if(styleManager)
 464     {
 465       StyleManager& styleManagerImpl = GetImpl(styleManager);
 466
 467       // Register for style changes
 468       styleManagerImpl.ControlStyleChangeSignal().Connect(this, &Control::OnStyleChange);
 469
 470       // Apply the current style
 471       styleManagerImpl.ApplyThemeStyleAtInit(Toolkit::Control(GetOwner()));
 472     }
 473   }
 474
 475   if(mImpl->mFlags & REQUIRES_KEYBOARD_NAVIGATION_SUPPORT)
 476   {
 477     SetKeyboardNavigationSupport(true);
 478   }
 479 }
 480
 481 void Control::OnInitialize()
 482 {
 483 }
 484
 485 void Control::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
 486 {
 487   // By default the control is only interested in theme (not font) changes
 488   if(styleManager && change == StyleChange::THEME_CHANGE)
 489   {
 490     GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 491     RelayoutRequest();
 492   }
 493 }
 494
 495 void Control::OnPinch(const PinchGesture& pinch)
 496 {
 497   if(!(mImpl->mStartingPinchScale))
 498   {
 499     // lazy allocate
 500     mImpl->mStartingPinchScale = new Vector3;
 501   }
 502
 503   if(pinch.GetState() == GestureState::STARTED)
 504   {
 505     *(mImpl->mStartingPinchScale) = Self().GetCurrentProperty<Vector3>(Actor::Property::SCALE);
 506   }
 507
 508   Self().SetProperty(Actor::Property::SCALE, *(mImpl->mStartingPinchScale) * pinch.GetScale());
 509 }
 510
 511 void Control::OnPan(const PanGesture& pan)
 512 {
 513 }
 514
 515 void Control::OnTap(const TapGesture& tap)
 516 {
 517 }
 518
 519 void Control::OnLongPress(const LongPressGesture& longPress)
 520 {
 521 }
 522
 523 void Control::EmitKeyInputFocusSignal(bool focusGained)
 524 {
 525   Dali::Toolkit::Control handle(GetOwner());
 526
 527   if(focusGained)
 528   {
 529     // signals are allocated dynamically when someone connects
 530     if(!mImpl->mKeyInputFocusGainedSignal.Empty())
 531     {
 532       mImpl->mKeyInputFocusGainedSignal.Emit(handle);
 533     }
 534   }
 535   else
 536   {
 537     // signals are allocated dynamically when someone connects
 538     if(!mImpl->mKeyInputFocusLostSignal.Empty())
 539     {
 540       mImpl->mKeyInputFocusLostSignal.Emit(handle);
 541     }
 542   }
 543 }
 544
 545 void Control::OnSceneConnection(int depth)
 546 {
 547   DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Control::OnSceneConnection number of registered visuals(%d)\n", mImpl->mVisuals.Size());
 548
 549   Actor self(Self());
 550
 551   for(RegisteredVisualContainer::Iterator iter = mImpl->mVisuals.Begin(); iter != mImpl->mVisuals.End(); iter++)
 552   {
 553     // Check whether the visual is empty and enabled
 554     if((*iter)->visual && (*iter)->enabled)
 555     {
 556       DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Control::OnSceneConnection Setting visual(%d) on scene\n", (*iter)->index);
 557       Toolkit::GetImplementation((*iter)->visual).SetOnScene(self);
 558     }
 559   }
 560
 561   // The clipping renderer is only created if required.
 562   CreateClippingRenderer(*this);
 563
 564   // Request to be laid out when the control is connected to the Scene.
 565   // Signal that a Relayout may be needed
 566 }
 567
 568 void Control::OnSceneDisconnection()
 569 {
 570   mImpl->OnSceneDisconnection();
 571 }
 572
 573 void Control::OnKeyInputFocusGained()
 574 {
 575   EmitKeyInputFocusSignal(true);
 576 }
 577
 578 void Control::OnKeyInputFocusLost()
 579 {
 580   EmitKeyInputFocusSignal(false);
 581 }
 582
 583 void Control::OnChildAdd(Actor& child)
 584 {
 585 }
 586
 587 void Control::OnChildRemove(Actor& child)
 588 {
 589 }
 590
 591 void Control::OnPropertySet(Property::Index index, const Property::Value& propertyValue)
 592 {
 593   // If the clipping mode has been set, we may need to create a renderer.
 594   // Only do this if we are already on-stage as the OnSceneConnection will handle the off-stage clipping controls.
 595   if((index == Actor::Property::CLIPPING_MODE) && Self().GetProperty<bool>(Actor::Property::CONNECTED_TO_SCENE))
 596   {
 597     // Note: This method will handle whether creation of the renderer is required.
 598     CreateClippingRenderer(*this);
 599   }
 600 }
 601
 602 void Control::OnSizeSet(const Vector3& targetSize)
 603 {
 604   Toolkit::Visual::Base visual = mImpl->GetVisual(Toolkit::Control::Property::BACKGROUND);
 605   if(visual)
 606   {
 607     Vector2 size(targetSize);
 608     visual.SetTransformAndSize(Property::Map(), size); // Send an empty map as we do not want to modify the visual's set transform
 609   }
 610 }
 611
 612 void Control::OnSizeAnimation(Animation& animation, const Vector3& targetSize)
 613 {
 614   // @todo size negotiate background to new size, animate as well?
 615 }
 616
 617 bool Control::OnKeyEvent(const KeyEvent& event)
 618 {
 619   return false; // Do not consume
 620 }
 621
 622 void Control::OnRelayout(const Vector2& size, RelayoutContainer& container)
 623 {
 624   for(unsigned int i = 0, numChildren = Self().GetChildCount(); i < numChildren; ++i)
 625   {
 626     Actor   child = Self().GetChildAt(i);
 627     Vector2 newChildSize(size);
 628
 629     // When set the padding or margin on the control, child should be resized and repositioned.
 630     if((mImpl->mPadding.start != 0) || (mImpl->mPadding.end != 0) || (mImpl->mPadding.top != 0) || (mImpl->mPadding.bottom != 0) ||
 631        (mImpl->mMargin.start != 0) || (mImpl->mMargin.end != 0) || (mImpl->mMargin.top != 0) || (mImpl->mMargin.bottom != 0))
 632     {
 633       Extents padding = mImpl->mPadding;
 634
 635       Dali::CustomActor           ownerActor(GetOwner());
 636       Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(ownerActor.GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
 637
 638       if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
 639       {
 640         std::swap(padding.start, padding.end);
 641       }
 642
 643       newChildSize.width  = size.width - (padding.start + padding.end);
 644       newChildSize.height = size.height - (padding.top + padding.bottom);
 645
 646       // Cannot use childs Position property as it can already have padding and margin applied on it,
 647       // so we end up cumulatively applying them over and over again.
 648       Vector2 childOffset(0.f, 0.f);
 649       childOffset.x += (mImpl->mMargin.start + padding.start);
 650       childOffset.y += (mImpl->mMargin.top + padding.top);
 651
 652       child.SetProperty(Actor::Property::POSITION, Vector2(childOffset.x, childOffset.y));
 653     }
 654     container.Add(child, newChildSize);
 655   }
 656
 657   Toolkit::Visual::Base visual = mImpl->GetVisual(Toolkit::Control::Property::BACKGROUND);
 658   if(visual)
 659   {
 660     visual.SetTransformAndSize(Property::Map(), size); // Send an empty map as we do not want to modify the visual's set transform
 661   }
 662 }
 663
 664 void Control::OnSetResizePolicy(ResizePolicy::Type policy, Dimension::Type dimension)
 665 {
 666 }
 667
 668 Vector3 Control::GetNaturalSize()
 669 {
 670   DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Control::GetNaturalSize for %s\n", Self().GetProperty<std::string>(Dali::Actor::Property::NAME).c_str());
 671   Toolkit::Visual::Base visual = mImpl->GetVisual(Toolkit::Control::Property::BACKGROUND);
 672   if(visual)
 673   {
 674     Vector2 naturalSize;
 675     visual.GetNaturalSize(naturalSize);
 676     naturalSize.width += (mImpl->mPadding.start + mImpl->mPadding.end);
 677     naturalSize.height += (mImpl->mPadding.top + mImpl->mPadding.bottom);
 678     return Vector3(naturalSize);
 679   }
 680   return Vector3::ZERO;
 681 }
 682
 683 float Control::CalculateChildSize(const Dali::Actor& child, Dimension::Type dimension)
 684 {
 685   return CalculateChildSizeBase(child, dimension);
 686 }
 687
 688 float Control::GetHeightForWidth(float width)
 689 {
 690   return GetHeightForWidthBase(width);
 691 }
 692
 693 float Control::GetWidthForHeight(float height)
 694 {
 695   return GetWidthForHeightBase(height);
 696 }
 697
 698 bool Control::RelayoutDependentOnChildren(Dimension::Type dimension)
 699 {
 700   return RelayoutDependentOnChildrenBase(dimension);
 701 }
 702
 703 void Control::OnCalculateRelayoutSize(Dimension::Type dimension)
 704 {
 705 }
 706
 707 void Control::OnLayoutNegotiated(float size, Dimension::Type dimension)
 708 {
 709 }
 710
 711 void Control::SignalConnected(SlotObserver* slotObserver, CallbackBase* callback)
 712 {
 713   mImpl->SignalConnected(slotObserver, callback);
 714 }
 715
 716 void Control::SignalDisconnected(SlotObserver* slotObserver, CallbackBase* callback)
 717 {
 718   mImpl->SignalDisconnected(slotObserver, callback);
 719 }
 720
 721 Control& GetImplementation(Dali::Toolkit::Control& handle)
 722 {
 723   CustomActorImpl& customInterface = handle.GetImplementation();
 724   // downcast to control
 725   Control& impl = dynamic_cast<Internal::Control&>(customInterface);
 726   return impl;
 727 }
 728
 729 const Control& GetImplementation(const Dali::Toolkit::Control& handle)
 730 {
 731   const CustomActorImpl& customInterface = handle.GetImplementation();
 732   // downcast to control
 733   const Control& impl = dynamic_cast<const Internal::Control&>(customInterface);
 734   return impl;
 735 }
 736
 737 } // namespace Internal
 738
 739 } // namespace Toolkit
 740
 741 } // namespace Dali