-void ImageView::SetTransformMapForFittingMode(Vector2 finalSize, Vector2 naturalSize, Vector2 finalOffset, Visual::FittingMode fittingMode, Property::Map& transformMap)
-{
- switch(fittingMode)
- {
- case Visual::FittingMode::FIT_KEEP_ASPECT_RATIO:
- {
- auto availableVisualSize = finalSize;
-
- // scale to fit the padded area
- finalSize = naturalSize * std::min((!Dali::EqualsZero(naturalSize.width) ? (availableVisualSize.width / naturalSize.width) : 0),
- (!Dali::EqualsZero(naturalSize.height) ? (availableVisualSize.height / naturalSize.height) : 0));
-
- // calculate final offset within the padded area
- finalOffset += (availableVisualSize - finalSize) * .5f;
-
- // populate the transform map
- transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, finalOffset)
- .Add(Toolkit::Visual::Transform::Property::SIZE, finalSize);
- break;
- }
- case Visual::FittingMode::OVER_FIT_KEEP_ASPECT_RATIO:
- {
- mImageViewPixelAreaSetByFittingMode = true;
- auto availableVisualSize = finalSize;
- finalSize = naturalSize * std::max((!Dali::EqualsZero(naturalSize.width) ? (availableVisualSize.width / naturalSize.width) : 0.0f),
- (!Dali::EqualsZero(naturalSize.height) ? (availableVisualSize.height / naturalSize.height) : 0.0f));
-
- auto originalOffset = finalOffset;
- finalOffset += (availableVisualSize - finalSize) * .5f;
-
- float x = abs((availableVisualSize.width - finalSize.width) / finalSize.width) * .5f;
- float y = abs((availableVisualSize.height - finalSize.height) / finalSize.height) * .5f;
- float widthRatio = 1.f - abs((availableVisualSize.width - finalSize.width) / finalSize.width);
- float heightRatio = 1.f - abs((availableVisualSize.height - finalSize.height) / finalSize.height);
- Vector4 pixelArea = Vector4(x, y, widthRatio, heightRatio);
- Self().SetProperty(Toolkit::ImageView::Property::PIXEL_AREA, pixelArea);
-
- // populate the transform map
- transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, originalOffset)
- .Add(Toolkit::Visual::Transform::Property::SIZE, availableVisualSize);
- break;
- }
- case Visual::FittingMode::CENTER:
- {
- auto availableVisualSize = finalSize;
- if(availableVisualSize.width > naturalSize.width && availableVisualSize.height > naturalSize.height)
- {
- finalSize = naturalSize;
- }
- else
- {
- finalSize = naturalSize * std::min((!Dali::EqualsZero(naturalSize.width) ? (availableVisualSize.width / naturalSize.width) : 0.0f),
- (!Dali::EqualsZero(naturalSize.height) ? (availableVisualSize.height / naturalSize.height) : 0.0f));
- }
-
- finalOffset += (availableVisualSize - finalSize) * .5f;
-
- // populate the transform map
- transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, finalOffset)
- .Add(Toolkit::Visual::Transform::Property::SIZE, finalSize);
- break;
- }
- case Visual::FittingMode::FILL:
- {
- transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, finalOffset)
- .Add(Toolkit::Visual::Transform::Property::SIZE, finalSize);
- break;
- }
- case Visual::FittingMode::FIT_WIDTH:
- case Visual::FittingMode::FIT_HEIGHT:
- {
- // This FittingMode already converted
- break;
- }
- }
-}
-
-void ImageView::ApplyFittingMode(const Vector2& size)
-{
- Property::Map transformMap = Property::Map();
-
- Extents padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
-
- bool zeroPadding = (padding == Extents());
-
- 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);
- }
-
- // remove padding from the size to know how much is left for the visual
- Vector2 finalSize = size - Vector2(padding.start + padding.end, padding.top + padding.bottom);
- Vector2 finalOffset = Vector2(padding.start, padding.top);
-
- Visual::FittingMode fittingMode = Toolkit::GetImplementation(mVisual).GetFittingMode();
-
- // Reset PIXEL_AREA after using OVER_FIT_KEEP_ASPECT_RATIO
- if(mImageViewPixelAreaSetByFittingMode)
- {
- Self().SetProperty(Toolkit::ImageView::Property::PIXEL_AREA, FULL_TEXTURE_RECT);
- mImageViewPixelAreaSetByFittingMode = false;
- }
-
- if((!zeroPadding) || // If padding is not zero
- (fittingMode != Visual::FittingMode::FILL))
- {
- mImageVisualPaddingSetByTransform = true;
-
- Vector2 naturalSize;
- // NaturalSize will not be used for FILL fitting mode, which is default.
- // Skip GetNaturalSize
- if(fittingMode != Visual::FittingMode::FILL)
- {
- mVisual.GetNaturalSize(naturalSize);
- }
-
- // If FittingMode use FIT_WIDTH or FIT_HEIGTH, it need to change proper fittingMode
- if(fittingMode == Visual::FittingMode::FIT_WIDTH)
- {
- fittingMode = (finalSize.height / naturalSize.height) < (finalSize.width / naturalSize.width) ? Visual::FittingMode::OVER_FIT_KEEP_ASPECT_RATIO : Visual::FittingMode::FIT_KEEP_ASPECT_RATIO;
- }
- else if(fittingMode == Visual::FittingMode::FIT_HEIGHT)
- {
- fittingMode = (finalSize.height / naturalSize.height) < (finalSize.width / naturalSize.width) ? Visual::FittingMode::FIT_KEEP_ASPECT_RATIO : Visual::FittingMode::OVER_FIT_KEEP_ASPECT_RATIO;
- }
-
- SetTransformMapForFittingMode(finalSize, naturalSize, finalOffset, fittingMode, transformMap);
-
- // Set extra value for applying transformMap
- transformMap.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)
- .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY,
- Vector2(Toolkit::Visual::Transform::Policy::ABSOLUTE, Toolkit::Visual::Transform::Policy::ABSOLUTE));
- }
- else if(mImageVisualPaddingSetByTransform && zeroPadding) // Reset offset to zero only if padding applied previously
- {
- mImageVisualPaddingSetByTransform = false;
- // Reset the transform map
- transformMap.Add(Toolkit::Visual::Transform::Property::OFFSET, Vector2::ZERO)
- .Add(Toolkit::Visual::Transform::Property::OFFSET_POLICY,
- Vector2(Toolkit::Visual::Transform::Policy::RELATIVE, Toolkit::Visual::Transform::Policy::RELATIVE))
- .Add(Toolkit::Visual::Transform::Property::SIZE, Vector2::ONE)
- .Add(Toolkit::Visual::Transform::Property::SIZE_POLICY,
- Vector2(Toolkit::Visual::Transform::Policy::RELATIVE, Toolkit::Visual::Transform::Policy::RELATIVE));
- }
-
- mVisual.SetTransformAndSize(transformMap, size);
-}
-
projects / platform / core / uifw / dali-toolkit.git / blobdiff