/*
- * Copyright (c) 2017 Samsung Electronics Co., Ltd.
+ * 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.
// EXTERNAL INCLUDES
#include <dali/public-api/object/type-registry-helper.h>
#include <dali/devel-api/object/property-helper-devel.h>
+#include <dali/devel-api/adaptor-framework/image-loading.h>
#include <dali/integration-api/debug.h>
// INTERNAL INCLUDES
#include <dali-toolkit/public-api/visuals/visual-properties.h>
#include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
+#include <dali-toolkit/devel-api/controls/text-controls/text-label-devel.h>
+
using namespace Dali::Toolkit::Text;
namespace Dali
namespace
{
const unsigned int DEFAULT_RENDERING_BACKEND = Dali::Toolkit::Text::DEFAULT_RENDERING_BACKEND;
+
+ /**
+ * @brief How the text visual should be aligned vertically inside the control.
+ *
+ * 0.0f aligns the text to the top, 0.5f aligns the text to the center, 1.0f aligns the text to the bottom.
+ * The alignment depends on the alignment value of the text label (Use Text::VerticalAlignment enumerations).
+ */
+ const float VERTICAL_ALIGNMENT_TABLE[ Text::VerticalAlignment::BOTTOM + 1 ] =
+ {
+ 0.0f, // VerticalAlignment::TOP
+ 0.5f, // VerticalAlignment::CENTER
+ 1.0f // VerticalAlignment::BOTTOM
+ };
}
namespace
DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "autoScrollStopMode", STRING, AUTO_SCROLL_STOP_MODE )
DALI_PROPERTY_REGISTRATION_READ_ONLY( Toolkit, TextLabel, "lineCount", INTEGER, LINE_COUNT )
DALI_PROPERTY_REGISTRATION( Toolkit, TextLabel, "lineWrapMode", INTEGER, LINE_WRAP_MODE )
+DALI_DEVEL_PROPERTY_REGISTRATION_READ_ONLY( Toolkit, TextLabel, "textDirection", INTEGER, TEXT_DIRECTION )
+DALI_DEVEL_PROPERTY_REGISTRATION( Toolkit, TextLabel, "verticalLineAlignment", INTEGER, VERTICAL_LINE_ALIGNMENT )
+DALI_DEVEL_PROPERTY_REGISTRATION( Toolkit, TextLabel, "textBackground", MAP, BACKGROUND )
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 )
DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION( Toolkit, TextLabel, "textColorGreen", TEXT_COLOR_GREEN, TEXT_COLOR, 1 )
if( impl.mController )
{
const float lineSpacing = value.Get<float>();
- impl.mController->SetDefaultLineSpacing( lineSpacing );
- impl.mTextUpdateNeeded = true;
+
+ // Don't trigger anything if the line spacing didn't change
+ if( impl.mController->SetDefaultLineSpacing( lineSpacing ) )
+ {
+ impl.mTextUpdateNeeded = true;
+ }
}
break;
}
}
break;
}
+ case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
+ {
+ if( impl.mController && impl.mController->GetTextModel() )
+ {
+ DevelText::VerticalLineAlignment::Type alignment = static_cast<DevelText::VerticalLineAlignment::Type>( value.Get<int>() );
+
+ impl.mController->SetVerticalLineAlignment( alignment );
+
+ // Property doesn't affect the layout, only Visual must be updated
+ TextVisual::EnableRendererUpdate( impl.mVisual );
+
+ // No need to trigger full re-layout. Instead call UpdateRenderer() directly
+ TextVisual::UpdateRenderer( impl.mVisual );
+ }
+ break;
+ }
+ case Toolkit::DevelTextLabel::Property::BACKGROUND:
+ {
+ const bool update = SetBackgroundProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
+ if( update )
+ {
+ impl.mTextUpdateNeeded = true;
+ }
+ break;
+ }
+ }
+
+ // Request relayout when text update is needed. It's necessary to call it
+ // as changing the property not via UI interaction brings no effect if only
+ // the mTextUpdateNeeded is changed.
+ if( impl.mTextUpdateNeeded )
+ {
+ // need to request relayout as size of text may have changed
+ impl.RequestTextRelayout();
}
}
+
+
+
+
}
Property::Value TextLabel::GetProperty( BaseObject* object, Property::Index index )
}
break;
}
+ case Toolkit::DevelTextLabel::Property::TEXT_DIRECTION:
+ {
+ if( impl.mController )
+ {
+ value = impl.mController->GetTextDirection();
+ }
+ break;
+ }
+ case Toolkit::DevelTextLabel::Property::VERTICAL_LINE_ALIGNMENT:
+ {
+ if( impl.mController )
+ {
+ value = impl.mController->GetVerticalLineAlignment();
+ }
+ break;
+ }
+ case Toolkit::DevelTextLabel::Property::BACKGROUND:
+ {
+ GetBackgroundProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
+ break;
+ }
}
}
Vector3 TextLabel::GetNaturalSize()
{
- return mController->GetNaturalSize();
+ Extents padding;
+ padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+
+ Vector3 naturalSize = mController->GetNaturalSize();
+ naturalSize.width += ( padding.start + padding.end );
+ naturalSize.height += ( padding.top + padding.bottom );
+
+ return naturalSize;
}
float TextLabel::GetHeightForWidth( float width )
{
- Padding padding;
- Self().GetPadding( padding );
+ Extents padding;
+ padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+
return mController->GetHeightForWidth( width ) + padding.top + padding.bottom;
}
{
DALI_LOG_INFO( gLogFilter, Debug::General, "TextLabel::OnRelayout\n" );
- Padding padding;
- Self().GetPadding( padding );
- Vector2 contentSize( size.x - ( padding.left + padding.right ), size.y - ( padding.top + padding.bottom ) );
+ Extents padding;
+ padding = Self().GetProperty<Extents>( Toolkit::Control::Property::PADDING );
+
+ Vector2 contentSize( size.x - ( padding.start + padding.end ), size.y - ( padding.top + padding.bottom ) );
const Text::Controller::UpdateTextType updateTextType = mController->Relayout( contentSize );
// Update the visual
TextVisual::EnableRendererUpdate( mVisual );
- Padding padding;
- Self().GetPadding( padding );
+ // Support Right-To-Left of padding
+ Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>( Self().GetProperty( Dali::Actor::Property::LAYOUT_DIRECTION ).Get<int>() );
+ if( Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection )
+ {
+ std::swap( padding.start, padding.end );
+ }
+
+ // Calculate the size of the visual that can fit the text
+ Size layoutSize = mController->GetTextModel()->GetLayoutSize();
+ layoutSize.x = contentSize.x;
+
+ const Vector2& shadowOffset = mController->GetTextModel()->GetShadowOffset();
+ if ( shadowOffset.y > Math::MACHINE_EPSILON_1 )
+ {
+ layoutSize.y += shadowOffset.y;
+ }
+
+ float outlineWidth = mController->GetTextModel()->GetOutlineWidth();
+ layoutSize.y += outlineWidth * 2.0f;
+ layoutSize.y = std::min( layoutSize.y, contentSize.y );
+
+ // Calculate the offset for vertical alignment only, as the layout engine will do the horizontal alignment.
+ Vector2 alignmentOffset;
+ alignmentOffset.x = 0.0f;
+ alignmentOffset.y = ( contentSize.y - layoutSize.y ) * VERTICAL_ALIGNMENT_TABLE[mController->GetVerticalAlignment()];
Property::Map visualTransform;
- visualTransform.Add( Toolkit::Visual::Transform::Property::SIZE, contentSize )
+ 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 ) )
- .Add( Toolkit::Visual::Transform::Property::OFFSET, Vector2(padding.left, padding.top) )
+ .Add( Toolkit::Visual::Transform::Property::OFFSET, Vector2( padding.start, padding.top ) + alignmentOffset )
.Add( Toolkit::Visual::Transform::Property::OFFSET_POLICY, Vector2( Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE ) )
.Add( Toolkit::Visual::Transform::Property::ORIGIN, Toolkit::Align::TOP_BEGIN )
.Add( Toolkit::Visual::Transform::Property::ANCHOR_POINT, Toolkit::Align::TOP_BEGIN );
Vector2 textureSize = textNaturalSize + Vector2(wrapGap, 0.0f); // Add the gap as a part of the texture
// Create a texture of the text for scrolling
+ Size verifiedSize = textureSize;
+ const int maxTextureSize = Dali::GetMaxTextureSize();
+
+ //if the texture size width exceed maxTextureSize, modify the visual model size and enabled the ellipsis
+ if( verifiedSize.width > maxTextureSize )
+ {
+ verifiedSize.width = maxTextureSize;
+ if( textNaturalSize.width > maxTextureSize )
+ {
+ mController->SetTextElideEnabled( true );
+ }
+ GetHeightForWidth( maxTextureSize );
+ wrapGap = std::max( maxTextureSize - textNaturalSize.width, 0.0f );
+ }
+
Text::TypesetterPtr typesetter = Text::Typesetter::New( mController->GetTextModel() );
- PixelData data = typesetter->Render( textureSize, Text::Typesetter::RENDER_TEXT_AND_STYLES, true, Pixel::RGBA8888 ); // ignore the horizontal alignment
+
+ PixelData data = typesetter->Render( verifiedSize, mController->GetTextDirection(), Text::Typesetter::RENDER_TEXT_AND_STYLES, true, Pixel::RGBA8888 ); // ignore the horizontal alignment
Texture texture = Texture::New( Dali::TextureType::TEXTURE_2D,
data.GetPixelFormat(),
data.GetWidth(),
// Set parameters for scrolling
Renderer renderer = static_cast<Internal::Visual::Base&>( GetImplementation( mVisual ) ).GetRenderer();
- mTextScroller->SetParameters( Self(), renderer, textureSet, controlSize, textureSize, wrapGap, direction, mController->GetHorizontalAlignment(), mController->GetVerticalAlignment() );
+ mTextScroller->SetParameters( Self(), renderer, textureSet, controlSize, verifiedSize, wrapGap, direction, mController->GetHorizontalAlignment(), mController->GetVerticalAlignment() );
}
void TextLabel::ScrollingFinished()