cleanup auto scroll in text label

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / text-controls / text-label-impl.cpp

diff --git a/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp b/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
index 76d0ee2..d9e413f 100644 (file)
--- a/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
+++ b/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
@@ -351,6 +351,7 @@ void TextLabel::SetProperty(BaseObject* object, Property::Index index, const Pro
       case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
       {
         const bool enableAutoScroll = value.Get<bool>();
+        impl.mLastAutoScrollEnabled = enableAutoScroll;
         // If request to auto scroll is the same as current state then do nothing.
         if(enableAutoScroll != impl.mController->IsAutoScrollEnabled())
         {
@@ -1008,6 +1009,32 @@ void TextLabel::OnPropertySet(Property::Index index, const Property::Value& prop
   }
 }
 
+void TextLabel::OnSceneConnection(int depth)
+{
+  if(mController->IsAutoScrollEnabled() || mLastAutoScrollEnabled)
+  {
+    mController->SetAutoScrollEnabled(true);
+  }
+  Control::OnSceneConnection(depth);
+}
+
+void TextLabel::OnSceneDisconnection()
+{
+  if(mTextScroller)
+  {
+    if(mLastAutoScrollEnabled && !mController->IsAutoScrollEnabled())
+    {
+      mLastAutoScrollEnabled = false;
+    }
+
+    const Toolkit::TextLabel::AutoScrollStopMode::Type stopMode = mTextScroller->GetStopMode();
+    mTextScroller->SetStopMode(Toolkit::TextLabel::AutoScrollStopMode::IMMEDIATE);
+    mTextScroller->StopScrolling();
+    mTextScroller->SetStopMode(stopMode);
+  }
+  Control::OnSceneDisconnection();
+}
+
 void TextLabel::OnRelayout(const Vector2& size, RelayoutContainer& container)
 {
   DALI_LOG_INFO(gLogFilter, Debug::General, "TextLabel::OnRelayout\n");
@@ -1062,6 +1089,13 @@ 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))
@@ -1125,6 +1159,7 @@ void TextLabel::SetUpAutoScrolling()
     if(textNaturalSize.width > maxTextureSize)
     {
       mController->SetTextElideEnabled(true);
+      mController->SetAutoScrollMaxTextureExceeded(true);
     }
     GetHeightForWidth(maxTextureSize);
     wrapGap = std::max(maxTextureSize - textNaturalSize.width, 0.0f);
@@ -1152,6 +1187,7 @@ 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()
@@ -1181,7 +1217,8 @@ void TextLabel::OnAccessibilityStatusChanged()
 TextLabel::TextLabel(ControlBehaviour additionalBehavior)
 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT | additionalBehavior)),
   mRenderingBackend(DEFAULT_RENDERING_BACKEND),
-  mTextUpdateNeeded(false)
+  mTextUpdateNeeded(false),
+  mLastAutoScrollEnabled(false)
 {
 }