#define __DALI_TOOLKIT_SCROLL_BAR_H__
/*
- * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2015 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/common/vector-wrapper.h>
-
// INTERNAL INCLUDES
-#include <dali-toolkit/public-api/controls/scrollable/scroll-component.h>
+#include <dali-toolkit/public-api/controls/control.h>
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.
+ * 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 |
- * |--------------------------|-------------------------------------|
- * | scroll-position-notified | @ref ScrollPositionNotifiedSignal() |
+ * | %Signal Name | Method |
+ * |----------------------------------|--------------------------------------------|
+ * | pan-finished | @ref PanFinishedSignal() |
+ * | scroll-position-interval-reached | @ref ScrollPositionIntervalReachedSignal() |
*/
-class DALI_IMPORT_API ScrollBar : public ScrollComponent
+class DALI_IMPORT_API ScrollBar : public Control
{
public:
+ // Properties
+
+ /**
+ * @brief The start and end property ranges for this control.
+ */
+ enum PropertyRange
+ {
+ PROPERTY_START_INDEX = Control::CONTROL_PROPERTY_END_INDEX + 1,
+ PROPERTY_END_INDEX = PROPERTY_START_INDEX + 1000 ///< Reserve property indices
+ };
+
+ /**
+ * @brief An enumeration of properties belonging to the ScrollBar class.
+ */
+ struct Property
+ {
+ enum
+ {
+ SCROLL_DIRECTION = PROPERTY_START_INDEX, ///< name "scroll-direction", @see SetScrollDirection(), type std::string
+ INDICATOR_HEIGHT_POLICY, ///< name "indicator-height-policy", @see SetIndicatorHeightPolicy(), type std::string
+ INDICATOR_FIXED_HEIGHT, ///< name "indicator-fixed-height", @see SetIndicatorFixedHeight(), type float
+ INDICATOR_SHOW_DURATION, ///< name "indicator-show-duration", @see SetIndicatorShowDuration(), type float
+ INDICATOR_HIDE_DURATION, ///< name "indicator-hide-duration", @see SetIndicatorHideDuration(), type float
+ SCROLL_POSITION_INTERVALS ///< name "scroll-position-intervals",@see SetScrollPositionIntervals() type Property::Array
+ };
+ };
+
// Signals
- typedef Signal< void ( float ) > ScrollPositionNotifiedSignalType;
- // Properties
- static const Property::Index PROPERTY_INDICATOR_HEIGHT_POLICY; ///< name "indicator-height-policy", @see SetIndicatorHeightPolicy(), type STRING
- static const Property::Index PROPERTY_INDICATOR_FIXED_HEIGHT; ///< name "indicator-fixed-height", @see SetIndicatorFixedHeight(), type FLOAT
- static const Property::Index PROPERTY_INDICATOR_SHOW_DURATION; ///< name "indicator-show-duration", @see SetIndicatorShowDuration(), type FLOAT
- static const Property::Index PROPERTY_INDICATOR_HIDE_DURATION; ///< name "indicator-hide-duration", @see SetIndicatorHideDuration(), type FLOAT
+ typedef Signal< void () > PanFinishedSignalType;
+ typedef Signal< void ( float ) > ScrollPositionIntervalReachedSignalType;
public:
/**
+ * @brief Direction.
+ */
+ enum Direction
+ {
+ Vertical = 0, ///< Scroll in the vertical direction
+ Horizontal ///< Scroll in the horizontal direction
+ };
+
+ /**
* @brief Indicator height policy.
*/
enum IndicatorHeightPolicy
/**
* @brief Create an uninitialized ScrollBar; this can be initialized with ScrollBar::New()
* Calling member functions with an uninitialized Dali::Object is not allowed.
- * or horizontally (false)
*/
ScrollBar();
/**
* @brief Create an initialized ScrollBar
+ * @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
static ScrollBar DownCast( BaseHandle handle );
/**
- * @brief Sets the image for the indicator of scroll bar.
+ * @brief Set the source of the scroll position properties.
*
- * @pre The scroll bar actor has been initialised.
+ * * @pre The handle to the object owing the scroll properties has been initialised and the property index must be vaild.
*
- * 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.
+ * @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).
+ */
+ 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.
+ *
+ * @pre The scroll bar actor has been initialised.
*
- * @param[in] image The image of indicator that moves to indicate the current scroll position.
+ * @param[in] indicator The indicator that moves to indicate the current scroll position.
*/
- void SetIndicatorImage( Image image );
+ void SetScrollIndicator( Actor indicator );
/**
* @brief Gets the indicator of scroll bar.
Actor GetScrollIndicator();
/**
- * @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 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.
*
* @param[in] positions List of values to receive notifications for when the current scroll position crosses them
*/
- void SetPositionNotifications( const std::vector<float>& positions );
+ 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.
+ *
+ * @pre The scroll bar actor has been initialised.
+ *
+ * @return The list of values to receive notifications for when the current scroll position crosses them
+ */
+ Dali::Vector<float> GetScrollPositionIntervals() const;
+
+ /**
+ * @brief Sets the direction of scroll bar to scroll either vertically or horizontally.
+ *
+ * @pre The scroll bar actor has been initialised.
+ *
+ * @param[in] direction The direction of scroll bar (either vertically or horizontally).
+ */
+ void SetScrollDirection( Direction direction );
+
+ /**
+ * @brief Gets the direction of scroll bar.
+ *
+ * @return The direction of scroll bar.
+ */
+ Direction GetScrollDirection() const;
/**
* @brief Sets the height policy of scroll indicator to have either variable or fixed height.
*
* @return The height policy of scroll indicator
*/
- IndicatorHeightPolicy GetIndicatorHeightPolicy();
+ IndicatorHeightPolicy GetIndicatorHeightPolicy() const;
/**
* @brief Sets the fixed height of scroll indicator.
* @brief Gets the fix height of scroll indicator.
* @return The fixed height of the scroll indicator
*/
- float GetIndicatorFixedHeight();
+ float GetIndicatorFixedHeight() const;
/**
* @brief Sets the duration in second for the scroll indicator to become fully visible
*
- * @pre The scroll bar actor has been initialised.
+ * @pre The scroll bar actor has been initialised; durationSeconds must be zero or greater; zero means the indicator will be shown instantly.
*
* @param[in] durationSeconds The duration for the scroll indicator to become fully visible
*/
* @brief Gets the duration in second for the scroll indicator to become fully visible
* @return The duration for the scroll indicator to become fully visible
*/
- float GetIndicatorShowDuration();
+ float GetIndicatorShowDuration() const;
/**
* @brief Sets the duration in second for the scroll indicator to become fully invisible
*
- * @pre The scroll bar actor has been initialised.
+ * @pre The scroll bar actor has been initialised; durationSeconds must be zero or greater; zero means the indicator will be hidden instantly.
*
* @param[in] durationSeconds The duration for the scroll indicator to become fully invisible
*/
* @brief Gets the duration in second for the scroll indicator to become fully invisible
* @return The duration for the scroll indicator to become fully invisible
*/
- float GetIndicatorHideDuration();
+ float GetIndicatorHideDuration() const;
/**
* @brief Shows the scroll indicator
*/
- void Show();
+ void ShowIndicator();
/**
* @brief Hides the scroll indicator
*/
- 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
+ * @pre The Object has been initialized.
+ * @return The signal to connect to.
+ */
+ 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
* @pre The Object has been initialized.
* @return The signal to connect to.
*/
- ScrollBar::ScrollPositionNotifiedSignalType& ScrollPositionNotifiedSignal();
+ ScrollBar::ScrollPositionIntervalReachedSignalType& ScrollPositionIntervalReachedSignal();
public: // Not intended for application developers
explicit DALI_INTERNAL ScrollBar( Dali::Internal::CustomActor* internal );
};
+/**
+ * @}
+ */
} // namespace Toolkit
} // namespace Dali
-/**
- * @}
- */
#endif // __DALI_TOOLKIT_SCROLL_BAR_H__
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