/*
- * 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.
#include <dali/public-api/object/type-registry-helper.h>
#include <dali/integration-api/debug.h>
-
// INTERNAL INCLUDES
#include <dali-toolkit/internal/controls/scrollable/item-view/item-view-impl.h>
#include <dali-toolkit/public-api/controls/image-view/image-view.h>
{
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
*/
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 )
{
}
* @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;
};
/**
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 )
{
}
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
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 )
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)
{
}
else
{
- mIndicatorSizeConstraint = Constraint::New<Vector3>( mIndicator, Actor::Property::SIZE, IndicatorSizeConstraint() );
+ mIndicatorSizeConstraint = Constraint::New<Vector3>( mIndicator, Actor::Property::SIZE,
+ IndicatorSizeConstraint( mIndicatorMinimumHeight, mIndicatorStartPadding + mIndicatorEndPadding ) );
mIndicatorSizeConstraint.AddSource( ParentSource( Actor::Property::SIZE ) );
mIndicatorSizeConstraint.AddSource( Source( scrollableHandle, mPropertyScrollContentSize ) );
mIndicatorSizeConstraint.Apply();
mIndicatorPositionConstraint.Remove();
}
- mIndicatorPositionConstraint = Constraint::New<Vector3>( mIndicator, Actor::Property::POSITION, IndicatorPositionConstraint() );
+ mIndicatorPositionConstraint = Constraint::New<Vector3>( mIndicator, Actor::Property::POSITION,
+ IndicatorPositionConstraint( mIndicatorStartPadding, mIndicatorEndPadding ) );
mIndicatorPositionConstraint.AddSource( LocalSource( Actor::Property::SIZE ) );
mIndicatorPositionConstraint.AddSource( ParentSource( Actor::Property::SIZE ) );
mIndicatorPositionConstraint.AddSource( Source( scrollableHandle, mPropertyScrollPosition ) );
}
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<float>(mPropertyMinScrollPosition);
- float maxScrollPosition = scrollableHandle.GetProperty<float>(mPropertyMaxScrollPosition);
+ float minScrollPosition = scrollableHandle.GetProperty<float>( mPropertyMinScrollPosition );
+ float maxScrollPosition = scrollableHandle.GetProperty<float>( 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;
}
void ScrollBar::SetIndicatorHeightPolicy( Toolkit::ScrollBar::IndicatorHeightPolicy policy )
{
- mIndicatorHeightPolicy = policy;
- ApplyConstraints();
+ if( policy != mIndicatorHeightPolicy )
+ {
+ mIndicatorHeightPolicy = policy;
+ ApplyConstraints();
+ }
}
Toolkit::ScrollBar::IndicatorHeightPolicy ScrollBar::GetIndicatorHeightPolicy() const
}
break;
}
+ case Toolkit::ScrollBar::Property::INDICATOR_MINIMUM_HEIGHT:
+ {
+ scrollBarImpl.mIndicatorMinimumHeight = value.Get<float>();
+ scrollBarImpl.ApplyConstraints();
+ break;
+ }
+ case Toolkit::ScrollBar::Property::INDICATOR_START_PADDING:
+ {
+ scrollBarImpl.mIndicatorStartPadding = value.Get<float>();
+ scrollBarImpl.ApplyConstraints();
+ break;
+ }
+ case Toolkit::ScrollBar::Property::INDICATOR_END_PADDING:
+ {
+ scrollBarImpl.mIndicatorEndPadding = value.Get<float>();
+ scrollBarImpl.ApplyConstraints();
+ break;
+ }
}
}
}
}
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;
#define __DALI_TOOLKIT_INTERNAL_SCROLL_BAR_H__
/*
- * 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.
Toolkit::ScrollBar::Direction mDirection; ///< The direction of scroll bar (vertical or horizontal)
- WeakHandleBase mScrollableObject; ///< Object to be scrolled
+ WeakHandleBase mScrollableObject; ///< Object to be scrolled
Property::Index mPropertyScrollPosition; ///< Index of scroll position property owned by the object to be scrolled
Property::Index mPropertyMinScrollPosition; ///< Index of minimum scroll position property owned by the object to be scrolled
Property::Index mPropertyMaxScrollPosition; ///< Index of maximum scroll position property owned by the object to be scrolled
Property::Index mPropertyScrollContentSize; ///< Index of scroll content size property owned by the object to be scrolled
- float mIndicatorShowDuration; ///< The duration of scroll indicator show animation
- float mIndicatorHideDuration; ///< The duration of scroll indicator hide animation
+ float mIndicatorShowDuration; ///< The duration of scroll indicator show animation
+ float mIndicatorHideDuration; ///< The duration of scroll indicator hide animation
float mScrollStart; ///< Scroll Start position (start of drag)
Vector3 mGestureDisplacement; ///< Gesture Displacement.
- float mCurrentScrollPosition; ///< The current scroll position updated by the pan gesture
+ float mCurrentScrollPosition; ///< The current scroll position updated by the pan gesture
Toolkit::ScrollBar::IndicatorHeightPolicy mIndicatorHeightPolicy; ///< The height policy of scroll indicator (variable or fixed)
- float mIndicatorFixedHeight; ///< The fixed height of scroll indicator
+ float mIndicatorFixedHeight; ///< The fixed height of scroll indicator
+ float mIndicatorMinimumHeight; ///< The minimum height for a variable size indicator
+ float mIndicatorStartPadding; ///< The padding at the start of the indicator
+ float mIndicatorEndPadding; ///< The padding at the end of the indicator
Timer mContractDelayTimer; ///< Timer guarantee contract delay time.
Timer mPanProcessTimer; ///< The timer to process the pan gesture after the gesture is started.
- Dali::Vector<float> mScrollPositionIntervals; ///< List of values to receive notification for when the current scroll position goes above or below them
+ Dali::Vector<float> mScrollPositionIntervals; ///< List of values to receive notification for when the current scroll position goes above or below them
PropertyNotification mPositionNotification; ///< Stores the property notification used for scroll position changes
PanFinishedSignalType mPanFinishedSignal;
Constraint mIndicatorSizeConstraint;
Constraint mScrollPositionInCurrentAxisConstraint;
- bool mIsPanning : 1; ///< Whether the scroll bar is being panned.
- bool mIndicatorFirstShow : 1; ///< True if the indicator has never been shown
+ bool mIsPanning : 1; ///< Whether the scroll bar is being panned.
+ bool mIndicatorFirstShow : 1; ///< True if the indicator has never been shown
};
} // namespace Internal
#define __DALI_TOOLKIT_SCROLL_BAR_H__
/*
- * Copyright (c) 2015 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.
{
enum
{
- SCROLL_DIRECTION = PROPERTY_START_INDEX, ///< name "scrollDirection", @see SetScrollDirection(), type std::string @SINCE_1_0.0
- INDICATOR_HEIGHT_POLICY, ///< name "indicatorHeightPolicy", @see SetIndicatorHeightPolicy(), type std::string @SINCE_1_0.0
- INDICATOR_FIXED_HEIGHT, ///< name "indicatorFixedHeight", @see SetIndicatorFixedHeight(), type float @SINCE_1_0.0
- INDICATOR_SHOW_DURATION, ///< name "indicatorShowDuration", @see SetIndicatorShowDuration(), type float @SINCE_1_0.0
- INDICATOR_HIDE_DURATION, ///< name "indicatorHideDuration", @see SetIndicatorHideDuration(), type float @SINCE_1_0.0
- SCROLL_POSITION_INTERVALS ///< name "scrollPositionIntervals", @see SetScrollPositionIntervals() type Property::Array @SINCE_1_0.0
+ /**
+ * @brief name "scrollDirection", type std::string
+ * @see SetScrollDirection()
+ * @SINCE_1_0.0
+ */
+ SCROLL_DIRECTION = PROPERTY_START_INDEX,
+ /**
+ * @brief name "indicatorHeightPolicy", type std::string
+ * @see SetIndicatorHeightPolicy()
+ * @SINCE_1_0.0
+ */
+ INDICATOR_HEIGHT_POLICY,
+ /**
+ * @brief name "indicatorFixedHeight", type float
+ * @see SetIndicatorFixedHeight()
+ * @SINCE_1_0.0
+ */
+ INDICATOR_FIXED_HEIGHT,
+ /**
+ * @brief name "indicatorShowDuration", type float
+ * @see SetIndicatorShowDuration()
+ * @SINCE_1_0.0
+ */
+ INDICATOR_SHOW_DURATION,
+ /**
+ * @brief name "indicatorHideDuration", type float
+ * @see SetIndicatorHideDuration()
+ * @SINCE_1_0.0
+ */
+ INDICATOR_HIDE_DURATION,
+ /**
+ * @brief name "scrollPositionIntervals", type Property::Array
+ * @see SetScrollPositionIntervals()
+ * @SINCE_1_0.0
+ */
+ SCROLL_POSITION_INTERVALS,
+ /**
+ * @brief name "indicatorMinimumHeight", type float
+ * The minimum height for a variable size indicator.
+ * @SINCE_1_1.36
+ */
+ INDICATOR_MINIMUM_HEIGHT,
+ /**
+ * @brief name "indicatorStartPadding", type float
+ * The padding at the start of the indicator. For example, the top if scrollDirection is Vertical.
+ * @SINCE_1_1.36
+ */
+ INDICATOR_START_PADDING,
+ /**
+ * @brief name "indicatorEndPadding", type float
+ * The padding at the end of the indicator. For example, the bottom if scrollDirection is Vertical.
+ * @SINCE_1_1.36
+ */
+ INDICATOR_END_PADDING
};
};
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