X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=blobdiff_plain;f=dali-toolkit%2Finternal%2Fcontrols%2Fscroll-bar%2Fscroll-bar-impl.cpp;h=a34e7bdfec73fe46701e0b1051c5015318f4b5b8;hp=8d3aa6401afd84d9e179a99dd35c108649146626;hb=2f86ec3ba1f0afaf35d98ca4cbe730848d10426c;hpb=0352558950d997afe04b9b5b1f6d1f02a1d726dd diff --git a/dali-toolkit/internal/controls/scroll-bar/scroll-bar-impl.cpp b/dali-toolkit/internal/controls/scroll-bar/scroll-bar-impl.cpp index 8d3aa64..a34e7bd 100755 --- a/dali-toolkit/internal/controls/scroll-bar/scroll-bar-impl.cpp +++ b/dali-toolkit/internal/controls/scroll-bar/scroll-bar-impl.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * Copyright (c) 2016 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. @@ -25,10 +25,9 @@ #include #include #include -#include +#include #include - // INTERNAL INCLUDES #include #include @@ -39,12 +38,14 @@ namespace { const char* DEFAULT_INDICATOR_IMAGE_PATH = DALI_IMAGE_DIR "popup_scroll.9.png"; -const float MINIMUM_INDICATOR_HEIGHT(20.0f); // The minimum indicator height for the nine patch border const float DEFAULT_SLIDER_DEPTH(1.0f); const float DEFAULT_INDICATOR_SHOW_DURATION(0.5f); const float DEFAULT_INDICATOR_HIDE_DURATION(0.5f); const float DEFAULT_PAN_GESTURE_PROCESS_TIME(16.7f); // 16.7 milliseconds, i.e. one frame const float DEFAULT_INDICATOR_FIXED_HEIGHT(80.0f); +const float DEFAULT_INDICATOR_MINIMUM_HEIGHT(0.0f); +const float DEFAULT_INDICATOR_START_PADDING(0.0f); +const float DEFAULT_INDICATOR_END_PADDING(0.0f); /** * Indicator size constraint @@ -52,7 +53,13 @@ const float DEFAULT_INDICATOR_FIXED_HEIGHT(80.0f); */ struct IndicatorSizeConstraint { - IndicatorSizeConstraint() + /** + * @param[in] minimumHeight The minimum height for the indicator + * @param[in] padding The sum of the padding at the start & end of the indicator + */ + IndicatorSizeConstraint( float minimumHeight, float padding ) + : mMinimumHeight( minimumHeight ), + mPadding( padding ) { } @@ -62,17 +69,23 @@ struct IndicatorSizeConstraint * @param[in] parentSizeProperty The parent size of scroll indicator. * @return The new scroll indicator size. */ - void operator()(Vector3& current, const PropertyInputContainer& inputs ) + void operator()( Vector3& current, const PropertyInputContainer& inputs ) { const Vector3& parentSize = inputs[0]->GetVector3(); const float contentSize = inputs[1]->GetFloat(); - float height = contentSize > parentSize.height ? - parentSize.height * ( parentSize.height / contentSize ) : - parentSize.height * ( (parentSize.height - contentSize * 0.5f) / parentSize.height); + // Take into account padding that may exist at the beginning and end of the indicator. + const float parentHeightMinusPadding = parentSize.height - mPadding; - current.y = std::max(MINIMUM_INDICATOR_HEIGHT, height); + float height = contentSize > parentHeightMinusPadding ? + parentHeightMinusPadding * ( parentHeightMinusPadding / contentSize ) : + parentHeightMinusPadding * ( ( parentHeightMinusPadding - contentSize * 0.5f ) / parentHeightMinusPadding ); + + current.y = std::max( mMinimumHeight, height ); } + + float mMinimumHeight; + float mPadding; }; /** @@ -82,10 +95,12 @@ struct IndicatorSizeConstraint struct IndicatorPositionConstraint { /** - * @param[in] minPosition The minimum limit of scroll position - * @param[in] maxPosition the maximum limit of scroll position + * @param[in] startPadding The padding at the start of the indicator + * @param[in] endPadding The padding at the end of the indicator */ - IndicatorPositionConstraint() + IndicatorPositionConstraint( float startPadding, float endPadding ) + : mStartPadding( startPadding ), + mEndPadding( endPadding ) { } @@ -100,13 +115,19 @@ struct IndicatorPositionConstraint const Vector3& indicatorSize = inputs[0]->GetVector3(); const Vector3& parentSize = inputs[1]->GetVector3(); const float scrollPosition = -inputs[2]->GetFloat(); - const float minScrollPosition = inputs[3]->GetFloat(); - const float maxScrollPosition = inputs[4]->GetFloat(); + const float minimumScrollPosition = inputs[3]->GetFloat(); + const float maximumScrollPosition = inputs[4]->GetFloat(); - float relativePosition = std::max( 0.0f, std::min( 1.0f, (scrollPosition - minScrollPosition) / (maxScrollPosition - minScrollPosition) ) ); - current.y = ( parentSize.height - indicatorSize.height ) * relativePosition; + // Take into account padding that may exist at the beginning and end of the indicator. + const float parentHeightMinusPadding = parentSize.height - ( mStartPadding + mEndPadding ); + + float relativePosition = std::max( 0.0f, std::min( 1.0f, ( scrollPosition - minimumScrollPosition ) / ( maximumScrollPosition - minimumScrollPosition ) ) ); + current.y = mStartPadding + ( parentHeightMinusPadding - indicatorSize.height ) * relativePosition; current.z = DEFAULT_SLIDER_DEPTH; } + + float mStartPadding; + float mEndPadding; }; } // unnamed namespace @@ -139,6 +160,9 @@ DALI_PROPERTY_REGISTRATION( Toolkit, ScrollBar, "indicatorFixedHeight", DALI_PROPERTY_REGISTRATION( Toolkit, ScrollBar, "indicatorShowDuration", FLOAT, INDICATOR_SHOW_DURATION ) DALI_PROPERTY_REGISTRATION( Toolkit, ScrollBar, "indicatorHideDuration", FLOAT, INDICATOR_HIDE_DURATION ) DALI_PROPERTY_REGISTRATION( Toolkit, ScrollBar, "scrollPositionIntervals", ARRAY, SCROLL_POSITION_INTERVALS ) +DALI_PROPERTY_REGISTRATION( Toolkit, ScrollBar, "indicatorMinimumHeight", FLOAT, INDICATOR_MINIMUM_HEIGHT ) +DALI_PROPERTY_REGISTRATION( Toolkit, ScrollBar, "indicatorStartPadding", FLOAT, INDICATOR_START_PADDING ) +DALI_PROPERTY_REGISTRATION( Toolkit, ScrollBar, "indicatorEndPadding", FLOAT, INDICATOR_END_PADDING ) DALI_SIGNAL_REGISTRATION( Toolkit, ScrollBar, "panFinished", PAN_FINISHED_SIGNAL ) DALI_SIGNAL_REGISTRATION( Toolkit, ScrollBar, "scrollPositionIntervalReached", SCROLL_POSITION_INTERVAL_REACHED_SIGNAL ) @@ -151,7 +175,7 @@ const char* INDICATOR_HEIGHT_POLICY_NAME[] = {"Variable", "Fixed"}; } ScrollBar::ScrollBar(Toolkit::ScrollBar::Direction direction) -: Control( ControlBehaviour( REQUIRES_TOUCH_EVENTS | REQUIRES_STYLE_CHANGE_SIGNALS ) ), +: Control( ControlBehaviour( REQUIRES_STYLE_CHANGE_SIGNALS ) ), mIndicatorShowAlpha(1.0f), mDirection(direction), mScrollableObject(WeakHandleBase()), @@ -165,6 +189,9 @@ ScrollBar::ScrollBar(Toolkit::ScrollBar::Direction direction) mCurrentScrollPosition(0.0f), mIndicatorHeightPolicy(Toolkit::ScrollBar::Variable), mIndicatorFixedHeight(DEFAULT_INDICATOR_FIXED_HEIGHT), + mIndicatorMinimumHeight(DEFAULT_INDICATOR_MINIMUM_HEIGHT), + mIndicatorStartPadding(DEFAULT_INDICATOR_START_PADDING), + mIndicatorEndPadding(DEFAULT_INDICATOR_END_PADDING), mIsPanning(false), mIndicatorFirstShow(true) { @@ -216,11 +243,16 @@ void ScrollBar::SetScrollIndicator( Actor indicator ) // Don't allow empty handle if( indicator ) { + // Remove current Indicator + if( mIndicator ) + { + Self().Remove( mIndicator ); + } mIndicator = indicator; mIndicatorFirstShow = true; - Self().Add(mIndicator); + Self().Add( mIndicator ); - EnableGestureDetection(Gesture::Type(Gesture::Pan)); + EnableGestureDetection( Gesture::Type( Gesture::Pan ) ); PanGestureDetector detector( GetPanGestureDetector() ); detector.DetachAll(); @@ -265,7 +297,8 @@ void ScrollBar::ApplyConstraints() } else { - mIndicatorSizeConstraint = Constraint::New( mIndicator, Actor::Property::SIZE, IndicatorSizeConstraint() ); + mIndicatorSizeConstraint = Constraint::New( mIndicator, Actor::Property::SIZE, + IndicatorSizeConstraint( mIndicatorMinimumHeight, mIndicatorStartPadding + mIndicatorEndPadding ) ); mIndicatorSizeConstraint.AddSource( ParentSource( Actor::Property::SIZE ) ); mIndicatorSizeConstraint.AddSource( Source( scrollableHandle, mPropertyScrollContentSize ) ); mIndicatorSizeConstraint.Apply(); @@ -276,7 +309,8 @@ void ScrollBar::ApplyConstraints() mIndicatorPositionConstraint.Remove(); } - mIndicatorPositionConstraint = Constraint::New( mIndicator, Actor::Property::POSITION, IndicatorPositionConstraint() ); + mIndicatorPositionConstraint = Constraint::New( mIndicator, Actor::Property::POSITION, + IndicatorPositionConstraint( mIndicatorStartPadding, mIndicatorEndPadding ) ); mIndicatorPositionConstraint.AddSource( LocalSource( Actor::Property::SIZE ) ); mIndicatorPositionConstraint.AddSource( ParentSource( Actor::Property::SIZE ) ); mIndicatorPositionConstraint.AddSource( Source( scrollableHandle, mPropertyScrollPosition ) ); @@ -409,16 +443,18 @@ void ScrollBar::OnPan( const PanGesture& gesture ) } case Gesture::Continuing: { - Vector3 delta(gesture.displacement.x, gesture.displacement.y, 0.0f); - mGestureDisplacement+=delta; + mGestureDisplacement.x += gesture.displacement.x; + mGestureDisplacement.y += gesture.displacement.y; - Vector3 span = Self().GetCurrentSize() - mIndicator.GetCurrentSize(); - float minScrollPosition = scrollableHandle.GetProperty(mPropertyMinScrollPosition); - float maxScrollPosition = scrollableHandle.GetProperty(mPropertyMaxScrollPosition); + float minScrollPosition = scrollableHandle.GetProperty( mPropertyMinScrollPosition ); + float maxScrollPosition = scrollableHandle.GetProperty( mPropertyMaxScrollPosition ); + + // The domain size is the internal range float domainSize = maxScrollPosition - minScrollPosition; + float logicalSize = Self().GetCurrentSize().y - ( mIndicator.GetCurrentSize().y + mIndicatorStartPadding + mIndicatorEndPadding ); - mCurrentScrollPosition = mScrollStart - mGestureDisplacement.y * domainSize / span.y; - mCurrentScrollPosition = 0.0f - std::min(maxScrollPosition, std::max(-mCurrentScrollPosition, minScrollPosition)); + mCurrentScrollPosition = mScrollStart - ( ( mGestureDisplacement.y * domainSize ) / logicalSize ); + mCurrentScrollPosition = -std::min( maxScrollPosition, std::max( -mCurrentScrollPosition, minScrollPosition ) ); break; } @@ -474,8 +510,11 @@ Toolkit::ScrollBar::Direction ScrollBar::GetScrollDirection() const void ScrollBar::SetIndicatorHeightPolicy( Toolkit::ScrollBar::IndicatorHeightPolicy policy ) { - mIndicatorHeightPolicy = policy; - ApplyConstraints(); + if( policy != mIndicatorHeightPolicy ) + { + mIndicatorHeightPolicy = policy; + ApplyConstraints(); + } } Toolkit::ScrollBar::IndicatorHeightPolicy ScrollBar::GetIndicatorHeightPolicy() const @@ -627,6 +666,24 @@ void ScrollBar::SetProperty( BaseObject* object, Property::Index index, const Pr } break; } + case Toolkit::ScrollBar::Property::INDICATOR_MINIMUM_HEIGHT: + { + scrollBarImpl.mIndicatorMinimumHeight = value.Get(); + scrollBarImpl.ApplyConstraints(); + break; + } + case Toolkit::ScrollBar::Property::INDICATOR_START_PADDING: + { + scrollBarImpl.mIndicatorStartPadding = value.Get(); + scrollBarImpl.ApplyConstraints(); + break; + } + case Toolkit::ScrollBar::Property::INDICATOR_END_PADDING: + { + scrollBarImpl.mIndicatorEndPadding = value.Get(); + scrollBarImpl.ApplyConstraints(); + break; + } } } } @@ -683,6 +740,21 @@ Property::Value ScrollBar::GetProperty( BaseObject* object, Property::Index inde } break; } + case Toolkit::ScrollBar::Property::INDICATOR_MINIMUM_HEIGHT: + { + value = scrollBarImpl.mIndicatorMinimumHeight; + break; + } + case Toolkit::ScrollBar::Property::INDICATOR_START_PADDING: + { + value = scrollBarImpl.mIndicatorStartPadding; + break; + } + case Toolkit::ScrollBar::Property::INDICATOR_END_PADDING: + { + value = scrollBarImpl.mIndicatorEndPadding; + break; + } } } return value;