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

   1 /*
   2  * Copyright (c) 2021 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/actors/actor-devel.h>
  23 #include <dali/devel-api/common/stage.h>
  24 #include <dali/devel-api/scripting/scripting.h>
  25 #include <dali/integration-api/debug.h>
  26 #include <dali/public-api/animation/constraint.h>
  27 #include <dali/public-api/object/type-info.h>
  28 #include <dali/public-api/object/type-registry-helper.h>
  29 #include <dali/public-api/size-negotiation/relayout-container.h>
  30 #include <cstring> // for strcmp
  31 #include <limits>
  32 #include <stack>
  33 #include <typeinfo>
  34
  35 // INTERNAL INCLUDES
  36 #include <dali-toolkit/dali-toolkit.h>
  37 #include <dali-toolkit/devel-api/controls/control-depth-index-ranges.h>
  38 #include <dali-toolkit/devel-api/controls/control-devel.h>
  39 #include <dali-toolkit/devel-api/focus-manager/keyinput-focus-manager.h>
  40 #include <dali-toolkit/devel-api/visuals/color-visual-actions-devel.h>
  41 #include <dali-toolkit/devel-api/visuals/color-visual-properties-devel.h>
  42 #include <dali-toolkit/internal/controls/control/control-data-impl.h>
  43 #include <dali-toolkit/internal/styling/style-manager-impl.h>
  44 #include <dali-toolkit/internal/visuals/color/color-visual.h>
  45 #include <dali-toolkit/internal/visuals/visual-string-constants.h>
  46 #include <dali-toolkit/public-api/align-enumerations.h>
  47 #include <dali-toolkit/public-api/controls/control.h>
  48 #include <dali-toolkit/public-api/controls/image-view/image-view.h>
  49 #include <dali-toolkit/public-api/focus-manager/keyboard-focus-manager.h>
  50 #include <dali-toolkit/public-api/styling/style-manager.h>
  51 #include <dali-toolkit/public-api/visuals/color-visual-properties.h>
  52 #include <dali-toolkit/public-api/visuals/visual-properties.h>
  53
  54 namespace Dali
  55 {
  56 namespace Toolkit
  57 {
  58 namespace Internal
  59 {
  60 namespace
  61 {
  62 #if defined(DEBUG_ENABLED)
  63 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, false, "LOG_CONTROL_VISUALS");
  64 #endif
  65
  66 /**
  67  * @brief Creates a clipping renderer if required.
  68  * (EG. If no renders exist and clipping is enabled).
  69  * @param[in] controlImpl The control implementation.
  70  */
  71 void CreateClippingRenderer(Control& controlImpl)
  72 {
  73   // We want to add a transparent background if we do not have one for clipping.
  74   Actor self(controlImpl.Self());
  75   int   clippingMode = ClippingMode::DISABLED;
  76   if(self.GetProperty(Actor::Property::CLIPPING_MODE).Get(clippingMode))
  77   {
  78     Internal::Control::Impl& controlDataImpl = Internal::Control::Impl::Get(controlImpl);
  79
  80     if(clippingMode == ClippingMode::CLIP_CHILDREN && controlDataImpl.mVisuals.Empty() && self.GetRendererCount() == 0u)
  81     {
  82       controlImpl.SetBackgroundColor(Color::TRANSPARENT);
  83     }
  84   }
  85 }
  86
  87 } // unnamed namespace
  88
  89 Toolkit::Control Control::New()
  90 {
  91   // Create the implementation, temporarily owned on stack
  92   IntrusivePtr<Control> controlImpl = new Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT));
  93
  94   // Pass ownership to handle
  95   Toolkit::Control handle(*controlImpl);
  96
  97   // Second-phase init of the implementation
  98   // This can only be done after the CustomActor connection has been made...
  99   controlImpl->Initialize();
 100
 101   return handle;
 102 }
 103
 104 void Control::SetStyleName(const std::string& styleName)
 105 {
 106   if(styleName != mImpl->mStyleName)
 107   {
 108     mImpl->mStyleName = styleName;
 109
 110     // Apply new style, if stylemanager is available
 111     Toolkit::StyleManager styleManager = Toolkit::StyleManager::Get();
 112     if(styleManager)
 113     {
 114       GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 115     }
 116   }
 117 }
 118
 119 const std::string& Control::GetStyleName() const
 120 {
 121   return mImpl->mStyleName;
 122 }
 123
 124 void Control::SetBackgroundColor(const Vector4& color)
 125 {
 126   mImpl->mBackgroundColor = color;
 127
 128   Property::Map map;
 129   map[Toolkit::Visual::Property::TYPE]           = Toolkit::Visual::COLOR;
 130   map[Toolkit::ColorVisual::Property::MIX_COLOR] = color;
 131
 132   Toolkit::Visual::Base visual = mImpl->GetVisual(Toolkit::Control::Property::BACKGROUND);
 133   if(visual && visual.GetType() == Toolkit::Visual::COLOR)
 134   {
 135     // Update background color only
 136     mImpl->DoAction(Toolkit::Control::Property::BACKGROUND, DevelColorVisual::Action::UPDATE_PROPERTY, map);
 137     return;
 138   }
 139
 140   SetBackground(map);
 141 }
 142
 143 void Control::SetBackground(const Property::Map& map)
 144 {
 145   Toolkit::Visual::Base visual = Toolkit::VisualFactory::Get().CreateVisual(map);
 146   visual.SetName("background");
 147   if(visual)
 148   {
 149     mImpl->RegisterVisual(Toolkit::Control::Property::BACKGROUND, visual, DepthIndex::BACKGROUND);
 150
 151     // Trigger a size negotiation request that may be needed by the new visual to relayout its contents.
 152     RelayoutRequest();
 153   }
 154 }
 155
 156 void Control::ClearBackground()
 157 {
 158   mImpl->UnregisterVisual(Toolkit::Control::Property::BACKGROUND);
 159   mImpl->mBackgroundColor = Color::TRANSPARENT;
 160
 161   // Trigger a size negotiation request that may be needed when unregistering a visual.
 162   RelayoutRequest();
 163 }
 164
 165 void Control::EnableGestureDetection(GestureType::Value type)
 166 {
 167   if((type & GestureType::PINCH) && !mImpl->mPinchGestureDetector)
 168   {
 169     mImpl->mPinchGestureDetector = PinchGestureDetector::New();
 170     mImpl->mPinchGestureDetector.DetectedSignal().Connect(mImpl, &Impl::PinchDetected);
 171     mImpl->mPinchGestureDetector.Attach(Self());
 172   }
 173
 174   if((type & GestureType::PAN) && !mImpl->mPanGestureDetector)
 175   {
 176     mImpl->mPanGestureDetector = PanGestureDetector::New();
 177     mImpl->mPanGestureDetector.SetMaximumTouchesRequired(2);
 178     mImpl->mPanGestureDetector.DetectedSignal().Connect(mImpl, &Impl::PanDetected);
 179     mImpl->mPanGestureDetector.Attach(Self());
 180   }
 181
 182   if((type & GestureType::TAP) && !mImpl->mTapGestureDetector)
 183   {
 184     mImpl->mTapGestureDetector = TapGestureDetector::New();
 185     mImpl->mTapGestureDetector.DetectedSignal().Connect(mImpl, &Impl::TapDetected);
 186     mImpl->mTapGestureDetector.Attach(Self());
 187   }
 188
 189   if((type & GestureType::LONG_PRESS) && !mImpl->mLongPressGestureDetector)
 190   {
 191     mImpl->mLongPressGestureDetector = LongPressGestureDetector::New();
 192     mImpl->mLongPressGestureDetector.DetectedSignal().Connect(mImpl, &Impl::LongPressDetected);
 193     mImpl->mLongPressGestureDetector.Attach(Self());
 194   }
 195 }
 196
 197 void Control::DisableGestureDetection(GestureType::Value type)
 198 {
 199   if((type & GestureType::PINCH) && mImpl->mPinchGestureDetector)
 200   {
 201     mImpl->mPinchGestureDetector.Detach(Self());
 202     mImpl->mPinchGestureDetector.Reset();
 203   }
 204
 205   if((type & GestureType::PAN) && mImpl->mPanGestureDetector)
 206   {
 207     mImpl->mPanGestureDetector.Detach(Self());
 208     mImpl->mPanGestureDetector.Reset();
 209   }
 210
 211   if((type & GestureType::TAP) && mImpl->mTapGestureDetector)
 212   {
 213     mImpl->mTapGestureDetector.Detach(Self());
 214     mImpl->mTapGestureDetector.Reset();
 215   }
 216
 217   if((type & GestureType::LONG_PRESS) && mImpl->mLongPressGestureDetector)
 218   {
 219     mImpl->mLongPressGestureDetector.Detach(Self());
 220     mImpl->mLongPressGestureDetector.Reset();
 221   }
 222 }
 223
 224 PinchGestureDetector Control::GetPinchGestureDetector() const
 225 {
 226   return mImpl->mPinchGestureDetector;
 227 }
 228
 229 PanGestureDetector Control::GetPanGestureDetector() const
 230 {
 231   return mImpl->mPanGestureDetector;
 232 }
 233
 234 TapGestureDetector Control::GetTapGestureDetector() const
 235 {
 236   return mImpl->mTapGestureDetector;
 237 }
 238
 239 LongPressGestureDetector Control::GetLongPressGestureDetector() const
 240 {
 241   return mImpl->mLongPressGestureDetector;
 242 }
 243
 244 void Control::SetKeyboardNavigationSupport(bool isSupported)
 245 {
 246   mImpl->mIsKeyboardNavigationSupported = isSupported;
 247 }
 248
 249 bool Control::IsKeyboardNavigationSupported()
 250 {
 251   return mImpl->mIsKeyboardNavigationSupported;
 252 }
 253
 254 void Control::SetKeyInputFocus()
 255 {
 256   if(Self().GetProperty<bool>(Actor::Property::CONNECTED_TO_SCENE))
 257   {
 258     Toolkit::KeyInputFocusManager::Get().SetFocus(Toolkit::Control::DownCast(Self()));
 259   }
 260 }
 261
 262 bool Control::HasKeyInputFocus()
 263 {
 264   bool result = false;
 265   if(Self().GetProperty<bool>(Actor::Property::CONNECTED_TO_SCENE))
 266   {
 267     Toolkit::Control control = Toolkit::KeyInputFocusManager::Get().GetCurrentFocusControl();
 268     if(Self() == control)
 269     {
 270       result = true;
 271     }
 272   }
 273   return result;
 274 }
 275
 276 void Control::ClearKeyInputFocus()
 277 {
 278   if(Self().GetProperty<bool>(Actor::Property::CONNECTED_TO_SCENE))
 279   {
 280     Toolkit::KeyInputFocusManager::Get().RemoveFocus(Toolkit::Control::DownCast(Self()));
 281   }
 282 }
 283
 284 void Control::SetAsKeyboardFocusGroup(bool isFocusGroup)
 285 {
 286   mImpl->mIsKeyboardFocusGroup = isFocusGroup;
 287
 288   // The following line will be removed when the deprecated API in KeyboardFocusManager is deleted
 289   Toolkit::KeyboardFocusManager::Get().SetAsFocusGroup(Self(), isFocusGroup);
 290 }
 291
 292 bool Control::IsKeyboardFocusGroup()
 293 {
 294   return Toolkit::KeyboardFocusManager::Get().IsFocusGroup(Self());
 295 }
 296
 297 void Control::AccessibilityActivate()
 298 {
 299   // Inform deriving classes
 300   OnAccessibilityActivated();
 301 }
 302
 303 void Control::KeyboardEnter()
 304 {
 305   // Inform deriving classes
 306   OnKeyboardEnter();
 307 }
 308
 309 bool Control::OnAccessibilityActivated()
 310 {
 311   if(Toolkit::KeyboardFocusManager::Get().SetCurrentFocusActor(Self()))
 312   {
 313     return OnKeyboardEnter();
 314   }
 315   return false;
 316 }
 317
 318 bool Control::OnKeyboardEnter()
 319 {
 320   return false; // Keyboard enter is not handled by default
 321 }
 322
 323 bool Control::OnAccessibilityPan(PanGesture gesture)
 324 {
 325   return false; // Accessibility pan gesture is not handled by default
 326 }
 327
 328 bool Control::OnAccessibilityValueChange(bool isIncrease)
 329 {
 330   return false; // Accessibility value change action is not handled by default
 331 }
 332
 333 bool Control::OnAccessibilityZoom()
 334 {
 335   return false; // Accessibility zoom action is not handled by default
 336 }
 337
 338 Actor Control::GetNextKeyboardFocusableActor(Actor currentFocusedActor, Toolkit::Control::KeyboardFocus::Direction direction, bool loopEnabled)
 339 {
 340   return Actor();
 341 }
 342
 343 void Control::OnKeyboardFocusChangeCommitted(Actor commitedFocusableActor)
 344 {
 345 }
 346
 347 Toolkit::Control::KeyEventSignalType& Control::KeyEventSignal()
 348 {
 349   return mImpl->mKeyEventSignal;
 350 }
 351
 352 Toolkit::Control::KeyInputFocusSignalType& Control::KeyInputFocusGainedSignal()
 353 {
 354   return mImpl->mKeyInputFocusGainedSignal;
 355 }
 356
 357 Toolkit::Control::KeyInputFocusSignalType& Control::KeyInputFocusLostSignal()
 358 {
 359   return mImpl->mKeyInputFocusLostSignal;
 360 }
 361
 362 bool Control::EmitKeyEventSignal(const KeyEvent& event)
 363 {
 364   // Guard against destruction during signal emission
 365   Dali::Toolkit::Control handle(GetOwner());
 366
 367   bool consumed = false;
 368
 369   consumed = mImpl->FilterKeyEvent(event);
 370
 371   // signals are allocated dynamically when someone connects
 372   if(!consumed && !mImpl->mKeyEventSignal.Empty())
 373   {
 374     consumed = mImpl->mKeyEventSignal.Emit(handle, event);
 375   }
 376
 377   if(!consumed)
 378   {
 379     // Notification for derived classes
 380     consumed = OnKeyEvent(event);
 381   }
 382
 383   return consumed;
 384 }
 385
 386 void Control::RelayoutRequest()
 387 {
 388   CustomActorImpl::RelayoutRequest();
 389 }
 390
 391
 392 Control::Control(ControlBehaviour behaviourFlags)
 393 : CustomActorImpl(static_cast<ActorFlags>(behaviourFlags)),
 394   mImpl(new Impl(*this))
 395 {
 396   mImpl->mFlags = behaviourFlags;
 397 }
 398
 399 Control::~Control()
 400 {
 401   delete mImpl;
 402 }
 403
 404 void Control::Initialize()
 405 {
 406   // Call deriving classes so initialised before styling is applied to them.
 407   OnInitialize();
 408
 409   if(!(mImpl->mFlags & DISABLE_STYLE_CHANGE_SIGNALS))
 410   {
 411     Toolkit::StyleManager styleManager = StyleManager::Get();
 412
 413     // if stylemanager is available
 414     if(styleManager)
 415     {
 416       StyleManager& styleManagerImpl = GetImpl(styleManager);
 417
 418       // Register for style changes
 419       styleManagerImpl.ControlStyleChangeSignal().Connect(this, &Control::OnStyleChange);
 420
 421       // Apply the current style
 422       styleManagerImpl.ApplyThemeStyleAtInit(Toolkit::Control(GetOwner()));
 423     }
 424   }
 425
 426   if(mImpl->mFlags & REQUIRES_KEYBOARD_NAVIGATION_SUPPORT)
 427   {
 428     SetKeyboardNavigationSupport(true);
 429   }
 430
 431   Dali::TypeInfo type;
 432   Self().GetTypeInfo(type);
 433   if(type)
 434   {
 435     auto typeName = type.GetName();
 436     DevelControl::AppendAccessibilityAttribute(Self(), "class", typeName);
 437   }
 438 }
 439
 440 void Control::OnInitialize()
 441 {
 442 }
 443
 444 void Control::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
 445 {
 446   // By default the control is only interested in theme (not font) changes
 447   if(styleManager && change == StyleChange::THEME_CHANGE)
 448   {
 449     GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 450     RelayoutRequest();
 451   }
 452 }
 453
 454 void Control::OnPinch(const PinchGesture& pinch)
 455 {
 456   if(!(mImpl->mStartingPinchScale))
 457   {
 458     // lazy allocate
 459     mImpl->mStartingPinchScale = new Vector3;
 460   }
 461
 462   if(pinch.GetState() == GestureState::STARTED)
 463   {
 464     *(mImpl->mStartingPinchScale) = Self().GetCurrentProperty<Vector3>(Actor::Property::SCALE);
 465   }
 466
 467   Self().SetProperty(Actor::Property::SCALE, *(mImpl->mStartingPinchScale) * pinch.GetScale());
 468 }
 469
 470 void Control::OnPan(const PanGesture& pan)
 471 {
 472 }
 473
 474 void Control::OnTap(const TapGesture& tap)
 475 {
 476 }
 477
 478 void Control::OnLongPress(const LongPressGesture& longPress)
 479 {
 480 }
 481
 482 void Control::EmitKeyInputFocusSignal(bool focusGained)
 483 {
 484   Dali::Toolkit::Control handle(GetOwner());
 485
 486   if(Accessibility::IsUp())
 487   {
 488     auto self = mImpl->GetAccessibilityObject(Self());
 489     self->EmitFocused(focusGained);
 490     auto parent = self->GetParent();
 491     if(parent && !self->GetStates()[Dali::Accessibility::State::MANAGES_DESCENDANTS])
 492     {
 493       parent->EmitActiveDescendantChanged(parent, self);
 494     }
 495   }
 496
 497   if(focusGained)
 498   {
 499     // signals are allocated dynamically when someone connects
 500     if(!mImpl->mKeyInputFocusGainedSignal.Empty())
 501     {
 502       mImpl->mKeyInputFocusGainedSignal.Emit(handle);
 503     }
 504   }
 505   else
 506   {
 507     // signals are allocated dynamically when someone connects
 508     if(!mImpl->mKeyInputFocusLostSignal.Empty())
 509     {
 510       mImpl->mKeyInputFocusLostSignal.Emit(handle);
 511     }
 512   }
 513 }
 514
 515 void Control::OnSceneConnection(int depth)
 516 {
 517   DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Control::OnSceneConnection number of registered visuals(%d)\n", mImpl->mVisuals.Size());
 518
 519   Actor self(Self());
 520
 521   for(RegisteredVisualContainer::Iterator iter = mImpl->mVisuals.Begin(); iter != mImpl->mVisuals.End(); iter++)
 522   {
 523     // Check whether the visual is empty and enabled
 524     if((*iter)->visual && (*iter)->enabled)
 525     {
 526       DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Control::OnSceneConnection Setting visual(%d) on scene\n", (*iter)->index);
 527       Toolkit::GetImplementation((*iter)->visual).SetOnScene(self);
 528     }
 529   }
 530
 531   // The clipping renderer is only created if required.
 532   CreateClippingRenderer(*this);
 533 }
 534
 535 void Control::OnSceneDisconnection()
 536 {
 537   mImpl->OnSceneDisconnection();
 538 }
 539
 540 void Control::OnKeyInputFocusGained()
 541 {
 542   EmitKeyInputFocusSignal(true);
 543 }
 544
 545 void Control::OnKeyInputFocusLost()
 546 {
 547   EmitKeyInputFocusSignal(false);
 548 }
 549
 550 void Control::OnChildAdd(Actor& child)
 551 {
 552 }
 553
 554 void Control::OnChildRemove(Actor& child)
 555 {
 556 }
 557
 558 void Control::OnPropertySet(Property::Index index, const Property::Value& propertyValue)
 559 {
 560   // If the clipping mode has been set, we may need to create a renderer.
 561   // Only do this if we are already on-stage as the OnSceneConnection will handle the off-stage clipping controls.
 562   switch(index)
 563   {
 564     case Actor::Property::CLIPPING_MODE:
 565     {
 566       if(Self().GetProperty<bool>(Actor::Property::CONNECTED_TO_SCENE))
 567       {
 568         // Note: This method will handle whether creation of the renderer is required.
 569         CreateClippingRenderer(*this);
 570       }
 571       break;
 572     }
 573     case Actor::Property::VISIBLE:
 574     {
 575       if(Dali::Accessibility::IsUp())
 576       {
 577         Dali::Accessibility::Accessible::Get(Self())->EmitVisible(Self().GetProperty(Actor::Property::VISIBLE).Get<bool>());
 578       }
 579       break;
 580     }
 581     case Toolkit::DevelControl::Property::ACCESSIBILITY_ROLE:
 582     {
 583       if(Dali::Accessibility::IsUp())
 584       {
 585         Dali::Accessibility::Accessible::Get(Self())->Emit(Dali::Accessibility::ObjectPropertyChangeEvent::ROLE);
 586       }
 587       break;
 588     }
 589   }
 590 }
 591
 592 void Control::OnSizeSet(const Vector3& targetSize)
 593 {
 594   Toolkit::Visual::Base visual = mImpl->GetVisual(Toolkit::Control::Property::BACKGROUND);
 595   if(visual)
 596   {
 597     Vector2 size(targetSize);
 598     visual.SetTransformAndSize(Property::Map(), size); // Send an empty map as we do not want to modify the visual's set transform
 599   }
 600 }
 601
 602 void Control::OnSizeAnimation(Animation& animation, const Vector3& targetSize)
 603 {
 604   // @todo size negotiate background to new size, animate as well?
 605 }
 606
 607 bool Control::OnKeyEvent(const KeyEvent& event)
 608 {
 609   return false; // Do not consume
 610 }
 611
 612 void Control::OnRelayout(const Vector2& size, RelayoutContainer& container)
 613 {
 614   for(unsigned int i = 0, numChildren = Self().GetChildCount(); i < numChildren; ++i)
 615   {
 616     Actor   child = Self().GetChildAt(i);
 617     Vector2 newChildSize(size);
 618
 619     // When set the padding or margin on the control, child should be resized and repositioned.
 620     if((mImpl->mPadding.start != 0) || (mImpl->mPadding.end != 0) || (mImpl->mPadding.top != 0) || (mImpl->mPadding.bottom != 0) ||
 621        (mImpl->mMargin.start != 0) || (mImpl->mMargin.end != 0) || (mImpl->mMargin.top != 0) || (mImpl->mMargin.bottom != 0))
 622     {
 623       Extents padding = mImpl->mPadding;
 624
 625       Dali::CustomActor           ownerActor(GetOwner());
 626       Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(ownerActor.GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
 627
 628       if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
 629       {
 630         std::swap(padding.start, padding.end);
 631       }
 632
 633       newChildSize.width  = size.width - (padding.start + padding.end);
 634       newChildSize.height = size.height - (padding.top + padding.bottom);
 635
 636       // Cannot use childs Position property as it can already have padding and margin applied on it,
 637       // so we end up cumulatively applying them over and over again.
 638       Vector2 childOffset(0.f, 0.f);
 639       childOffset.x += (mImpl->mMargin.start + padding.start);
 640       childOffset.y += (mImpl->mMargin.top + padding.top);
 641
 642       child.SetProperty(Actor::Property::POSITION, Vector2(childOffset.x, childOffset.y));
 643     }
 644     container.Add(child, newChildSize);
 645   }
 646
 647   Toolkit::Visual::Base visual = mImpl->GetVisual(Toolkit::Control::Property::BACKGROUND);
 648   if(visual)
 649   {
 650     visual.SetTransformAndSize(Property::Map(), size); // Send an empty map as we do not want to modify the visual's set transform
 651   }
 652 }
 653
 654 void Control::OnSetResizePolicy(ResizePolicy::Type policy, Dimension::Type dimension)
 655 {
 656 }
 657
 658 Vector3 Control::GetNaturalSize()
 659 {
 660   DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Control::GetNaturalSize for %s\n", Self().GetProperty<std::string>(Dali::Actor::Property::NAME).c_str());
 661   Toolkit::Visual::Base visual = mImpl->GetVisual(Toolkit::Control::Property::BACKGROUND);
 662   if(visual)
 663   {
 664     Vector2 naturalSize;
 665     visual.GetNaturalSize(naturalSize);
 666     naturalSize.width += (mImpl->mPadding.start + mImpl->mPadding.end);
 667     naturalSize.height += (mImpl->mPadding.top + mImpl->mPadding.bottom);
 668     return Vector3(naturalSize);
 669   }
 670   return Vector3::ZERO;
 671 }
 672
 673 float Control::CalculateChildSize(const Dali::Actor& child, Dimension::Type dimension)
 674 {
 675   return CalculateChildSizeBase(child, dimension);
 676 }
 677
 678 float Control::GetHeightForWidth(float width)
 679 {
 680   return GetHeightForWidthBase(width);
 681 }
 682
 683 float Control::GetWidthForHeight(float height)
 684 {
 685   return GetWidthForHeightBase(height);
 686 }
 687
 688 bool Control::RelayoutDependentOnChildren(Dimension::Type dimension)
 689 {
 690   return RelayoutDependentOnChildrenBase(dimension);
 691 }
 692
 693 void Control::OnCalculateRelayoutSize(Dimension::Type dimension)
 694 {
 695 }
 696
 697 void Control::OnLayoutNegotiated(float size, Dimension::Type dimension)
 698 {
 699 }
 700
 701 void Control::SignalConnected(SlotObserver* slotObserver, CallbackBase* callback)
 702 {
 703   mImpl->SignalConnected(slotObserver, callback);
 704 }
 705
 706 void Control::SignalDisconnected(SlotObserver* slotObserver, CallbackBase* callback)
 707 {
 708   mImpl->SignalDisconnected(slotObserver, callback);
 709 }
 710
 711 Control& GetImplementation(Dali::Toolkit::Control& handle)
 712 {
 713   CustomActorImpl& customInterface = handle.GetImplementation();
 714   // downcast to control
 715   Control& impl = dynamic_cast<Internal::Control&>(customInterface);
 716   return impl;
 717 }
 718
 719 const Control& GetImplementation(const Dali::Toolkit::Control& handle)
 720 {
 721   const CustomActorImpl& customInterface = handle.GetImplementation();
 722   // downcast to control
 723   const Control& impl = dynamic_cast<const Internal::Control&>(customInterface);
 724   return impl;
 725 }
 726
 727 } // namespace Internal
 728
 729 } // namespace Toolkit
 730
 731 } // namespace Dali