Merge "Fix uint16 max issue in TextLabel" into devel/master
[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / text-controls / text-label-impl.cpp
index a98ef9b..2d2368b 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2022 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.
@@ -30,6 +30,7 @@
 // INTERNAL INCLUDES
 #include <dali-toolkit/devel-api/controls/control-depth-index-ranges.h>
 #include <dali-toolkit/devel-api/text/rendering-backend.h>
+#include <dali-toolkit/internal/controls/text-controls/common-text-utils.h>
 #include <dali-toolkit/internal/styling/style-manager-impl.h>
 #include <dali-toolkit/internal/text/property-string-parser.h>
 #include <dali-toolkit/internal/text/rendering/text-backend.h>
@@ -135,7 +136,11 @@ DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "textFit",
 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "minLineSize",                  FLOAT,   MIN_LINE_SIZE                  )
 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "renderingBackend",             INTEGER, RENDERING_BACKEND              )
 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "fontSizeScale",                FLOAT,   FONT_SIZE_SCALE                )
+DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "enableFontSizeScale",          BOOLEAN, ENABLE_FONT_SIZE_SCALE         )
 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "ellipsisPosition",             INTEGER, ELLIPSIS_POSITION              )
+DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "strikethrough",                MAP,     STRIKETHROUGH                  )
+DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "characterSpacing",             FLOAT,   CHARACTER_SPACING              )
+DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextLabel, "relativeLineSize",             FLOAT,   RELATIVE_LINE_SIZE             )
 
 DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT(Toolkit, TextLabel, "textColor",      Color::BLACK,     TEXT_COLOR   )
 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit,    TextLabel, "textColorRed",   TEXT_COLOR_RED,   TEXT_COLOR, 0)
@@ -218,10 +223,10 @@ void ParseTextFitProperty(Text::ControllerPtr& controller, const Property::Map*
 
 } // namespace
 
-Toolkit::TextLabel TextLabel::New()
+Toolkit::TextLabel TextLabel::New(ControlBehaviour additionalBehaviour)
 {
   // Create the implementation, temporarily owned by this handle on stack
-  IntrusivePtr<TextLabel> impl = new TextLabel();
+  IntrusivePtr<TextLabel> impl = new TextLabel(additionalBehaviour);
 
   // Pass ownership to CustomActor handle
   Toolkit::TextLabel handle(*impl);
@@ -507,6 +512,15 @@ void TextLabel::SetProperty(BaseObject* object, Property::Index index, const Pro
         }
         break;
       }
+      case Toolkit::DevelTextLabel::Property::ENABLE_FONT_SIZE_SCALE:
+      {
+        const bool enableFontSizeScale = value.Get<bool>();
+        if(!Equals(impl.mController->IsFontSizeScaleEnabled(), enableFontSizeScale))
+        {
+          impl.mController->SetFontSizeScaleEnabled(enableFontSizeScale);
+        }
+        break;
+      }
       case Toolkit::DevelTextLabel::Property::ELLIPSIS_POSITION:
       {
         DevelText::EllipsisPosition::Type ellipsisPositionType(static_cast<DevelText::EllipsisPosition::Type>(-1)); // Set to invalid value to ensure a valid mode does get set
@@ -517,6 +531,25 @@ void TextLabel::SetProperty(BaseObject* object, Property::Index index, const Pro
         }
         break;
       }
+      case Toolkit::DevelTextLabel::Property::STRIKETHROUGH:
+      {
+        impl.mTextUpdateNeeded = SetStrikethroughProperties(impl.mController, value, Text::EffectStyle::DEFAULT) || impl.mTextUpdateNeeded;
+        break;
+      }
+      case Toolkit::DevelTextLabel::Property::CHARACTER_SPACING:
+      {
+        const float characterSpacing = value.Get<float>();
+        impl.mController->SetCharacterSpacing(characterSpacing);
+        break;
+      }
+      case Toolkit::DevelTextLabel::Property::RELATIVE_LINE_SIZE:
+      {
+        const float relativeLineSize = value.Get<float>();
+        DALI_LOG_INFO(gLogFilter, Debug::Verbose, "TextLabel %p RELATIVE_LINE_SIZE %f\n", impl.mController.Get(), relativeLineSize);
+
+        impl.mController->SetRelativeLineSize(relativeLineSize);
+        break;
+      }
     }
 
     // Request relayout when text update is needed. It's necessary to call it
@@ -728,10 +761,10 @@ Property::Value TextLabel::GetProperty(BaseObject* object, Property::Index index
       }
       case Toolkit::DevelTextLabel::Property::TEXT_FIT:
       {
-        const bool  enabled  = impl.mController->IsTextFitEnabled();
-        const float minSize  = impl.mController->GetTextFitMinSize();
-        const float maxSize  = impl.mController->GetTextFitMaxSize();
-        const float stepSize = impl.mController->GetTextFitStepSize();
+        const bool  enabled   = impl.mController->IsTextFitEnabled();
+        const float minSize   = impl.mController->GetTextFitMinSize();
+        const float maxSize   = impl.mController->GetTextFitMaxSize();
+        const float stepSize  = impl.mController->GetTextFitStepSize();
         const float pointSize = impl.mController->GetTextFitPointSize();
 
         Property::Map map;
@@ -755,11 +788,31 @@ Property::Value TextLabel::GetProperty(BaseObject* object, Property::Index index
         value = impl.mController->GetFontSizeScale();
         break;
       }
+      case Toolkit::DevelTextLabel::Property::ENABLE_FONT_SIZE_SCALE:
+      {
+        value = impl.mController->IsFontSizeScaleEnabled();
+        break;
+      }
       case Toolkit::DevelTextLabel::Property::ELLIPSIS_POSITION:
       {
         value = impl.mController->GetEllipsisPosition();
         break;
       }
+      case Toolkit::DevelTextLabel::Property::STRIKETHROUGH:
+      {
+        GetStrikethroughProperties(impl.mController, value, Text::EffectStyle::DEFAULT);
+        break;
+      }
+      case Toolkit::DevelTextLabel::Property::CHARACTER_SPACING:
+      {
+        value = impl.mController->GetCharacterSpacing();
+        break;
+      }
+      case Toolkit::DevelTextLabel::Property::RELATIVE_LINE_SIZE:
+      {
+        value = impl.mController->GetRelativeLineSize();
+        break;
+      }
     }
   }
 
@@ -830,9 +883,6 @@ void TextLabel::OnInitialize()
   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
   self.SetResizePolicy(ResizePolicy::DIMENSION_DEPENDENCY, Dimension::HEIGHT);
 
-  // Enable highlightability
-  self.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
-
   // Enable the text ellipsis.
   mController->SetTextElideEnabled(true); // If false then text larger than control will overflow
 
@@ -846,10 +896,17 @@ void TextLabel::OnInitialize()
   Layout::Engine& engine = mController->GetLayoutEngine();
   engine.SetCursorWidth(0u); // Do not layout space for the cursor.
 
-  DevelControl::SetAccessibilityConstructor(self, [](Dali::Actor actor) {
-    return std::unique_ptr<Dali::Accessibility::Accessible>(
-      new AccessibleImpl(actor, Dali::Accessibility::Role::LABEL));
-  });
+  // Accessibility
+  self.SetProperty(DevelControl::Property::ACCESSIBILITY_ROLE, Dali::Accessibility::Role::LABEL);
+  self.SetProperty(DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
+
+  Accessibility::Bridge::EnabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
+  Accessibility::Bridge::DisabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
+}
+
+DevelControl::ControlAccessible* TextLabel::CreateAccessibleObject()
+{
+  return new TextLabelAccessible(Self());
 }
 
 void TextLabel::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
@@ -937,6 +994,12 @@ void TextLabel::OnPropertySet(Property::Index index, const Property::Value& prop
       }
       break;
     }
+    case Toolkit::TextLabel::Property::TEXT:
+    case Toolkit::TextLabel::Property::ENABLE_MARKUP:
+    {
+      CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
+      break;
+    }
     default:
     {
       Control::OnPropertySet(index, propertyValue); // up call to control for non-handled properties
@@ -999,6 +1062,13 @@ void TextLabel::OnRelayout(const Vector2& size, RelayoutContainer& container)
     alignmentOffset.x = 0.0f;
     alignmentOffset.y = (contentSize.y - layoutSize.y) * VERTICAL_ALIGNMENT_TABLE[mController->GetVerticalAlignment()];
 
+    const int maxTextureSize = Dali::GetMaxTextureSize();
+    if(layoutSize.width > maxTextureSize)
+    {
+      DALI_LOG_WARNING("layoutSize(%f) > maxTextureSize(%d): To guarantee the behavior of Texture::New, layoutSize must not be bigger than maxTextureSize\n", layoutSize.width, maxTextureSize);
+      layoutSize.width = maxTextureSize;
+    }
+
     Property::Map visualTransform;
     visualTransform.Add(Toolkit::Visual::Transform::Property::SIZE, layoutSize)
       .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY, Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE))
@@ -1062,6 +1132,7 @@ void TextLabel::SetUpAutoScrolling()
     if(textNaturalSize.width > maxTextureSize)
     {
       mController->SetTextElideEnabled(true);
+      mController->SetAutoScrollMaxTextureExceeded(true);
     }
     GetHeightForWidth(maxTextureSize);
     wrapGap = std::max(maxTextureSize - textNaturalSize.width, 0.0f);
@@ -1089,6 +1160,7 @@ void TextLabel::SetUpAutoScrolling()
   Renderer renderer = static_cast<Internal::Visual::Base&>(GetImplementation(mVisual)).GetRenderer();
   mTextScroller->SetParameters(Self(), renderer, textureSet, controlSize, verifiedSize, wrapGap, direction, mController->GetHorizontalAlignment(), mController->GetVerticalAlignment());
   mController->SetTextElideEnabled(actualellipsis);
+  mController->SetAutoScrollMaxTextureExceeded(false);
 }
 
 void TextLabel::ScrollingFinished()
@@ -1110,196 +1182,54 @@ void TextLabel::EmitTextFitChangedSignal()
   mTextFitChangedSignal.Emit(handle);
 }
 
-TextLabel::TextLabel()
-: Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
-  mRenderingBackend(DEFAULT_RENDERING_BACKEND),
-  mTextUpdateNeeded(false)
+void TextLabel::OnAccessibilityStatusChanged()
 {
+  CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
 }
 
-TextLabel::~TextLabel()
-{
-}
-
-std::string TextLabel::AccessibleImpl::GetNameRaw()
+TextLabel::TextLabel(ControlBehaviour additionalBehavior)
+: Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT | additionalBehavior)),
+  mRenderingBackend(DEFAULT_RENDERING_BACKEND),
+  mTextUpdateNeeded(false)
 {
-  auto self = Toolkit::TextLabel::DownCast(Self());
-  return self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
 }
 
-Property::Index TextLabel::AccessibleImpl::GetNamePropertyIndex()
+TextLabel::~TextLabel()
 {
-  return Toolkit::TextLabel::Property::TEXT;
 }
 
-std::string TextLabel::AccessibleImpl::GetText(size_t startOffset, size_t endOffset)
+Vector<Vector2> TextLabel::GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const
 {
-  if(endOffset <= startOffset)
-  {
-    return {};
-  }
-
-  auto self = Toolkit::TextLabel::DownCast(Self());
-  auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
-
-  if(startOffset > text.size() || endOffset > text.size())
-  {
-    return {};
-  }
-
-  return text.substr(startOffset, endOffset - startOffset);
+  return mController->GetTextSize(startIndex, endIndex);
 }
 
-size_t TextLabel::AccessibleImpl::GetCharacterCount()
+Vector<Vector2> TextLabel::GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const
 {
-  auto self = Toolkit::TextLabel::DownCast(Self());
-  auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
-
-  return text.size();
+  return mController->GetTextPosition(startIndex, endIndex);
 }
 
-size_t TextLabel::AccessibleImpl::GetCursorOffset()
+std::string TextLabel::TextLabelAccessible::GetNameRaw() const
 {
-  return {};
+  return GetWholeText();
 }
 
-bool TextLabel::AccessibleImpl::SetCursorOffset(size_t offset)
+Property::Index TextLabel::TextLabelAccessible::GetNamePropertyIndex()
 {
-  return {};
+  return Toolkit::TextLabel::Property::TEXT;
 }
 
-Dali::Accessibility::Range TextLabel::AccessibleImpl::GetTextAtOffset(size_t offset, Dali::Accessibility::TextBoundary boundary)
+const std::vector<Toolkit::TextAnchor>& TextLabel::TextLabelAccessible::GetTextAnchors() const
 {
   auto self = Toolkit::TextLabel::DownCast(Self());
-  auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
-  auto textSize = text.size();
-
-  auto range = Dali::Accessibility::Range{};
 
-  switch(boundary)
-  {
-    case Dali::Accessibility::TextBoundary::CHARACTER:
-    {
-      if(offset < textSize)
-      {
-        range.content     = text[offset];
-        range.startOffset = offset;
-        range.endOffset   = offset + 1;
-      }
-      break;
-    }
-    case Dali::Accessibility::TextBoundary::WORD:
-    case Dali::Accessibility::TextBoundary::LINE:
-    {
-      auto textString = text.c_str();
-      auto breaks = std::vector<char>(textSize, 0);
-
-      if(boundary == Dali::Accessibility::TextBoundary::WORD)
-      {
-        Accessibility::Accessible::FindWordSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
-      }
-      else
-      {
-        Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
-      }
-
-      auto index = 0u;
-      auto counter = 0u;
-      while(index < textSize && counter <= offset)
-      {
-        auto start = index;
-        if(breaks[index])
-        {
-          while(breaks[index])
-          {
-            index++;
-          }
-          counter++;
-        }
-        else
-        {
-          if(boundary == Dali::Accessibility::TextBoundary::WORD)
-          {
-            index++;
-          }
-          if(boundary == Dali::Accessibility::TextBoundary::LINE)
-          {
-            counter++;
-          }
-        }
-
-        if((counter > 0) && ((counter - 1) == offset))
-        {
-          range.content     = text.substr(start, index - start + 1);
-          range.startOffset = start;
-          range.endOffset   = index + 1;
-        }
-
-        if(boundary == Dali::Accessibility::TextBoundary::LINE)
-        {
-          index++;
-        }
-      }
-      break;
-    }
-    case Dali::Accessibility::TextBoundary::SENTENCE:
-    {
-      /* not supported by default */
-      break;
-    }
-    case Dali::Accessibility::TextBoundary::PARAGRAPH:
-    {
-      /* Paragraph is not supported by libunibreak library */
-      break;
-    }
-    default:
-      break;
-  }
-
-  return range;
-}
-
-Dali::Accessibility::Range TextLabel::AccessibleImpl::GetRangeOfSelection(size_t selectionIndex)
-{
-  // Since DALi supports only one selection indexes higher than 0 are ignored
-  if(selectionIndex > 0)
-  {
-    return {};
-  }
-
-  auto self  = Toolkit::TextLabel::DownCast(Self());
-  auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
-  std::string value{};
-  controller->RetrieveSelection(value);
-  auto indices = controller->GetSelectionIndexes();
-
-  return {static_cast<size_t>(indices.first), static_cast<size_t>(indices.second), value};
+  return Toolkit::GetImpl(self).mAnchorActors;
 }
 
-bool TextLabel::AccessibleImpl::RemoveSelection(size_t selectionIndex)
+Toolkit::Text::ControllerPtr TextLabel::TextLabelAccessible::GetTextController() const
 {
-  // Since DALi supports only one selection indexes higher than 0 are ignored
-  if(selectionIndex > 0)
-  {
-    return false;
-  }
-
   auto self = Toolkit::TextLabel::DownCast(Self());
-  Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(0, 0);
-  return true;
-}
 
-bool TextLabel::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset)
-{
-  // Since DALi supports only one selection indexes higher than 0 are ignored
-  if(selectionIndex > 0)
-  {
-    return false;
-  }
-
-  auto self = Toolkit::TextLabel::DownCast(Self());
-  Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(startOffset, endOffset);
-  return true;
+  return Toolkit::GetImpl(self).GetTextController();
 }
 
 } // namespace Internal