#ifndef __DALI_TOOLKIT_SCROLL_BAR_H__
#define __DALI_TOOLKIT_SCROLL_BAR_H__
-//
-// Copyright (c) 2014 Samsung Electronics Co., Ltd.
-//
-// Licensed under the Flora License, Version 1.0 (the License);
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://floralicense.org/license/
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an AS IS BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
// INTERNAL INCLUDES
-#include <dali/dali.h>
-#include <dali-toolkit/public-api/controls/scrollable/scroll-component.h>
+#include <dali-toolkit/public-api/controls/control.h>
-namespace Dali DALI_IMPORT_API
+namespace Dali
{
namespace Toolkit
{
-// Forward declarations
-class ScrollConnector;
-
namespace Internal DALI_INTERNAL
{
// Forward declarations
class ScrollBar;
}
+/**
+ * @addtogroup dali_toolkit_controls_scroll_bar
+ * @{
+ */
/**
- * ScrollBar is a UI component that can be added to the scrollable controls
- * indicating the current scroll position of the scrollable content.
+ * @brief ScrollBar is a UI component that can be linked to the scrollable objects
+ * indicating the current scroll position of the scrollable object.
+ *
+ * Signals
+ * | %Signal Name | Method |
+ * |-------------------------------|--------------------------------------------|
+ * | panFinished | @ref PanFinishedSignal() |
+ * | scrollPositionIntervalReached | @ref ScrollPositionIntervalReachedSignal() |
+ * @SINCE_1_0.0
*/
-class ScrollBar : public ScrollComponent
+class DALI_IMPORT_API ScrollBar : public Control
{
public:
+ // Properties
+
+ /**
+ * @brief Enumeration for the start and end property ranges for this control.
+ * @SINCE_1_0.0
+ */
+ enum PropertyRange
+ {
+ PROPERTY_START_INDEX = Control::CONTROL_PROPERTY_END_INDEX + 1, ///< @SINCE_1_0.0
+ PROPERTY_END_INDEX = PROPERTY_START_INDEX + 1000 ///< Reserve property indices @SINCE_1_0.0
+ };
+
+ /**
+ * @brief Enumeration for the instance of properties belonging to the ScrollBar class.
+ * @SINCE_1_0.0
+ */
+ struct Property
+ {
+ /**
+ * @brief Enumeration for the instance of properties belonging to the ScrollBar class.
+ * @SINCE_1_0.0
+ */
+ enum
+ {
+ /**
+ * @brief name "scrollDirection", type std::string.
+ * @SINCE_1_0.0
+ * @see SetScrollDirection()
+ */
+ SCROLL_DIRECTION = PROPERTY_START_INDEX,
+ /**
+ * @brief name "indicatorHeightPolicy", type std::string.
+ * @SINCE_1_0.0
+ * @see SetIndicatorHeightPolicy()
+ */
+ INDICATOR_HEIGHT_POLICY,
+ /**
+ * @brief name "indicatorFixedHeight", type float.
+ * @SINCE_1_0.0
+ * @see SetIndicatorFixedHeight()
+ */
+ INDICATOR_FIXED_HEIGHT,
+ /**
+ * @brief name "indicatorShowDuration", type float.
+ * @SINCE_1_0.0
+ * @see SetIndicatorShowDuration()
+ */
+ INDICATOR_SHOW_DURATION,
+ /**
+ * @brief name "indicatorHideDuration", type float.
+ * @SINCE_1_0.0
+ * @see SetIndicatorHideDuration()
+ */
+ INDICATOR_HIDE_DURATION,
+ /**
+ * @brief name "scrollPositionIntervals", type Property::Array.
+ * @SINCE_1_0.0
+ * @see SetScrollPositionIntervals()
+ */
+ 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
+ };
+ };
+
// Signals
- static const char* const SCROLL_POSITION_NOTIFIED_SIGNAL_NAME; ///< "scroll-position-notified" signal name
- typedef SignalV2< void ( float ) > ScrollPositionNotifiedSignalType;
+
+ typedef Signal< void () > PanFinishedSignalType;
+ typedef Signal< void ( float ) > ScrollPositionIntervalReachedSignalType;
public:
/**
- * @brief Create an uninitialized ScrollBar; this can be initialized with ScrollBar::New()
+ * @brief Direction.
+ * @SINCE_1_0.0
+ */
+ enum Direction
+ {
+ Vertical = 0, ///< Scroll in the vertical direction @SINCE_1_0.0
+ Horizontal ///< Scroll in the horizontal direction @SINCE_1_0.0
+ };
+
+ /**
+ * @brief Indicator height policy.
+ * @SINCE_1_0.0
+ */
+ enum IndicatorHeightPolicy
+ {
+ Variable = 0, ///< Variable height changed dynamically according to the length of scroll content @SINCE_1_0.0
+ Fixed ///< Fixed height regardless of the length of scroll content @SINCE_1_0.0
+ };
+
+ /**
+ * @brief Creates an uninitialized ScrollBar; this can be initialized with ScrollBar::New()
* Calling member functions with an uninitialized Dali::Object is not allowed.
- * or horizontally (false)
+ * @SINCE_1_0.0
*/
ScrollBar();
/**
* @brief Copy constructor.
+ * @SINCE_1_0.0
+ * @param[in] scrollBar Handle to an object
*/
ScrollBar( const ScrollBar& scrollBar );
/**
* @brief Assignment operator.
+ * @SINCE_1_0.0
+ * @param[in] scrollBar Handle to an object
+ * @return A reference to this
*/
ScrollBar& operator=( const ScrollBar& scrollBar );
/**
- * @brief Virtual destructor.
- * Dali::Object derived classes typically do not contain member data.
+ * @brief Destructor.
+ *
+ * This is non-virtual since derived Handle types must not contain data or virtual methods.
+ * @SINCE_1_0.0
*/
- virtual ~ScrollBar();
+ ~ScrollBar();
/**
- * @brief Create an initialized ScrollBar
- * @return A pointer to the created ScrollBar.
+ * @brief Creates an initialized ScrollBar.
+ * @SINCE_1_0.0
+ * @param[in] direction The direction of scroll bar (either vertically or horizontally)
+ * @return A pointer to the created ScrollBar
*/
- static ScrollBar New();
+ static ScrollBar New(Direction direction = Vertical);
/**
- * @brief Downcast an Object handle to ScrollBar. If handle points to a ScrollBar the
- * downcast produces valid handle. If not the returned handle is left uninitialized.
+ * @brief Downcasts a handle to ScrollBar handle.
+ *
+ * If handle points to a ScrollBar, the downcast produces valid handle.
+ * If not, the returned handle is left uninitialized.
+ * @SINCE_1_0.0
* @param[in] handle Handle to an object
- * @return handle to a ScrollBar or an uninitialized handle
+ * @return Handle to a ScrollBar or an uninitialized handle
*/
static ScrollBar DownCast( BaseHandle handle );
/**
- * @brief Sets the image for the background of scroll indicator.
+ * @brief Sets the source of the scroll position properties.
*
- * @pre The scroll bar actor has been initialised.
+ * @SINCE_1_0.0
+ * @param[in] handle The handle of the object owing the scroll properties
+ * @param[in] propertyScrollPosition The index of the scroll position property (The scroll position, type float)
+ * @param[in] propertyMinScrollPosition The index of the minimum scroll position property (The minimum scroll position, type float)
+ * @param[in] propertyMaxScrollPosition The index of the maximum scroll position property (The maximum scroll position, type float)
+ * @param[in] propertyScrollContentSize The index of the scroll content size property (The size of the scrollable content in actor coordinates, type float)
+ * @pre The handle to the object owing the scroll properties has been initialised and the property index must be valid.
+ */
+ void SetScrollPropertySource( Handle handle, Dali::Property::Index propertyScrollPosition, Dali::Property::Index propertyMinScrollPosition, Dali::Property::Index propertyMaxScrollPosition, Dali::Property::Index propertyScrollContentSize );
+
+ /**
+ * @brief Sets the indicator of scroll bar.
*
- * The background image is resized (stretched according to scale settings),
- * to the size of the ScrollBar.
+ * @SINCE_1_0.0
+ * @param[in] indicator The indicator that moves to indicate the current scroll position
+ * @pre The scroll bar actor has been initialized.
+ */
+ void SetScrollIndicator( Actor indicator );
+
+ /**
+ * @brief Gets the indicator of scroll bar.
*
- * @param[in] image The image to cover background
- * @param[in] border The nine patch border for the image.
+ * @SINCE_1_0.0
+ * @return The indicator indicates the current scroll position of the scrollable content
+ * @pre The scroll bar actor has been initialized.
*/
- void SetBackgroundImage( Image image, const Vector4& border );
+ Actor GetScrollIndicator();
/**
- * @brief Sets the image for the indicator of scroll bar.
+ * @brief Sets the list of values to get notification when the current scroll position of the scrollable
+ * object goes above or below any of these values.
*
- * @pre The scroll bar actor has been initialised.
+ * @SINCE_1_0.0
+ * @param[in] positions List of values to receive notifications for when the current scroll position crosses them
+ * @pre The scroll bar actor has been initialized.
+ */
+ void SetScrollPositionIntervals( const Dali::Vector<float>& positions );
+
+ /**
+ * @brief Gets the list of values to receive notifications when the current scroll position of the scrollable
+ * object goes above or below any of these values.
*
- * The indicator image is resized (stretched according to scale settings),
- * to reflect the size of the scroll indicator and minimum/maximum limits
- * of the scroll position.
+ * @SINCE_1_0.0
+ * @return The list of values to receive notifications for when the current scroll position crosses them
+ * @pre The scroll bar actor has been initialized.
*
- * @param[in] image The image of indicator that moves to indicate the current scroll position.
- * @param[in] border The nine patch border for the image.
*/
- void SetIndicatorImage( Image image, const Vector4& border );
+ Dali::Vector<float> GetScrollPositionIntervals() const;
/**
- * @brief Gets the indicator of scroll bar.
+ * @brief Sets the direction of scroll bar to scroll either vertically or horizontally.
*
- * @pre The scroll bar actor has been initialised.
+ * @SINCE_1_0.0
+ * @param[in] direction The direction of scroll bar (either vertically or horizontally)
+ * @pre The scroll bar actor has been initialized.
+ */
+ void SetScrollDirection( Direction direction );
+
+ /**
+ * @brief Gets the direction of scroll bar.
*
- * The indicator indicates the current scroll position of the scrollable content.
+ * @SINCE_1_0.0
+ * @return The direction of scroll bar
*/
- Actor GetScrollIndicator();
+ Direction GetScrollDirection() const;
/**
- * @brief Sets the values to get notification when the current scroll position of the scrollable
- * content goes above or below any of these values.
+ * @brief Sets the height policy of scroll indicator to have either variable or fixed height.
*
- * @pre The scroll bar actor has been initialised.
+ * @SINCE_1_0.0
+ * @param[in] policy The height policy of scroll indicator
+ * @pre The scroll bar actor has been initialized.
+ */
+ void SetIndicatorHeightPolicy( IndicatorHeightPolicy policy );
+
+ /**
+ * @brief Gets the height policy of scroll indicator.
*
- * @param[in] positions List of values to receive notifications for when the current scroll position crosses them
+ * @SINCE_1_0.0
+ * @return The height policy of scroll indicator
*/
- void SetPositionNotifications( const std::vector<float>& positions );
+ IndicatorHeightPolicy GetIndicatorHeightPolicy() const;
/**
- * @brief Shows the scroll indicator
+ * @brief Sets the fixed height of scroll indicator.
+ *
+ * Normally the height of scroll indicator is changed dynamically according to the length of scroll content.
+ * However, when the height policy of scroll indicator is set to be fixed, the height will be kept fixed
+ * regardless of the length of scroll content.
+ *
+ * @SINCE_1_0.0
+ * @param[in] height The fixed height of the scroll indicator
+ * @pre The scroll bar actor has been initialized.
+ *
+ */
+ void SetIndicatorFixedHeight( float height );
+
+ /**
+ * @brief Gets the fix height of scroll indicator.
+ * @SINCE_1_0.0
+ * @return The fixed height of the scroll indicator
+ */
+ float GetIndicatorFixedHeight() const;
+
+ /**
+ * @brief Sets the duration in seconds for the scroll indicator to become fully visible.
+ *
+ * @SINCE_1_0.0
+ * @param[in] durationSeconds The duration for the scroll indicator to become fully visible
+ * @pre The scroll bar actor has been initialised; durationSeconds must be zero or greater; zero means the indicator will be shown instantly.
+ *
+ */
+ void SetIndicatorShowDuration( float durationSeconds );
+
+ /**
+ * @brief Gets the duration in seconds for the scroll indicator to become fully visible.
+ * @SINCE_1_0.0
+ * @return The duration for the scroll indicator to become fully visible
+ */
+ float GetIndicatorShowDuration() const;
+
+ /**
+ * @brief Sets the duration in seconds for the scroll indicator to become fully invisible.
+ *
+ * @SINCE_1_0.0
+ * @param[in] durationSeconds The duration for the scroll indicator to become fully invisible
+ * @pre The scroll bar actor has been initialised; durationSeconds must be zero or greater; zero means the indicator will be hidden instantly.
+ *
+ */
+ void SetIndicatorHideDuration( float durationSeconds );
+
+ /**
+ * @brief Gets the duration in seconds for the scroll indicator to become fully invisible.
+ * @SINCE_1_0.0
+ * @return The duration for the scroll indicator to become fully invisible
+ */
+ float GetIndicatorHideDuration() const;
+
+ /**
+ * @brief Shows the scroll indicator.
+ * @SINCE_1_0.0
*/
- void Show();
+ void ShowIndicator();
/**
- * @brief Hides the scroll indicator
+ * @brief Hides the scroll indicator.
+ * @SINCE_1_0.0
*/
- void Hide();
+ void HideIndicator();
+
+public: // Signals
/**
- * @brief Signal emitted when the current scroll position of the scrollable content goes above or below the values
- * specified by SetPositionNotifications.
+ * @brief Signal emitted when panning is finished on the scroll indicator.
+ *
+ * Signal only emitted when the source of the scroll position properties are set.
+ *
+ * A callback of the following type may be connected:
+ * @code
+ * void YourCallbackName();
+ * @endcode
+ * @SINCE_1_0.0
+ * @return The signal to connect to
+ * @pre The Object has been initialized.
+ */
+ ScrollBar::PanFinishedSignalType& PanFinishedSignal();
+
+ /**
+ * @brief Signal emitted when the current scroll position of the scrollable content
+ * goes above or below the values specified by SCROLL_POSITION_INTERVALS property.
+ *
+ * Signal only emitted when the source of the scroll position properties are set.
*
* A callback of the following type may be connected:
* @code
* void YourCallbackName(float currentScrollPosition);
* @endcode
+ * @SINCE_1_0.0
+ * @return The signal to connect to
* @pre The Object has been initialized.
- * @return The signal to connect to.
*/
- ScrollBar::ScrollPositionNotifiedSignalType& ScrollPositionNotifiedSignal();
+ ScrollBar::ScrollPositionIntervalReachedSignalType& ScrollPositionIntervalReachedSignal();
public: // Not intended for application developers
+ /// @cond internal
/**
- * Creates a handle using the Toolkit::Internal implementation.
- * @param[in] implementation The Control implementation.
+ * @brief Creates a handle using the Toolkit::Internal implementation.
+ * @SINCE_1_0.0
+ * @param[in] implementation The Control implementation
*/
- ScrollBar( Internal::ScrollBar& implementation );
+ DALI_INTERNAL ScrollBar( Internal::ScrollBar& implementation );
/**
- * Allows the creation of this Control from an Internal::CustomActor pointer.
- * @param[in] internal A pointer to the internal CustomActor.
+ * @brief Allows the creation of this Control from an Internal::CustomActor pointer.
+ * @SINCE_1_0.0
+ * @param[in] internal A pointer to the internal CustomActor
*/
- ScrollBar( Dali::Internal::CustomActor* internal );
+ explicit DALI_INTERNAL ScrollBar( Dali::Internal::CustomActor* internal );
+ /// @endcond
};
+/**
+ * @}
+ */
} // namespace Toolkit
} // namespace Dali
-/**
- * @}
- */
#endif // __DALI_TOOLKIT_SCROLL_BAR_H__
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