*/
// EXTERNAL INCLUDES
-#include <boost/function.hpp>
#include <dali/public-api/animation/alpha-function.h>
// INTERNAL INCLUDES
{
public:
- /// @brief Function signature of a boolean constraint
- typedef boost::function<bool (const bool& current, const float& layoutPosition, const float& scrollSpeed, const Vector3& layoutSize)> BoolFunction;
-
- /// @brief Function signature of a Vector3 constraint
- typedef boost::function<Vector3 (const Vector3& current, const float& layoutPosition, const float& scrollSpeed, const Vector3& layoutSize)> Vector3Function;
-
- /// @brief Function signature of a Vector4 constraint
- typedef boost::function<Vector4 (const Vector4& current, const float& layoutPosition, const float& scrollSpeed, const Vector3& layoutSize)> Vector4Function;
-
- /// @brief Function signature of a Quaternion constraint
- typedef boost::function<Quaternion (const Quaternion& current, const float& layoutPosition, const float& scrollSpeed, const Vector3& layoutSize)> QuaternionFunction;
+ class Extension; ///< Forward declare future extension interface
/**
* @brief Virtual destructor.
DALI_IMPORT_API ControlOrientation::Type GetOrientation() const;
/**
+ * @brief Retrieve the target size of an item in the layout.
+ *
+ * This will return the default size for the layout unless overridden by calling SetItemSize().
+ *
+ * @note layout-position is not provided as a parameter, since applying size constraints is not recommended.
+ * Animating to target-sizes is preferable, since this allows controls to perform layouting without constraints.
+ * @param[in] itemId The ID of an item in the layout.
+ * @param[in] layoutSize The layout size
+ * @param[out] itemSize The target size of an item.
+ */
+ DALI_IMPORT_API void GetItemSize( unsigned int itemId, const Vector3& layoutSize, Vector3& itemSize ) const;
+
+ /**
+ * @brief Overrides the default size for the layout.
+ *
+ * @param[in] itemSize The size of each item.
+ */
+ DALI_IMPORT_API void SetItemSize( const Vector3& itemSize );
+
+ /**
* @brief Query the minimum valid layout position; this is a negative value.
*
* When scrolling, the first item will move within the range 0 to GetMinimumLayoutPosition().
virtual unsigned int GetReserveItemCount(Vector3 layoutSize) const = 0;
/**
- * @brief Retrieve the target size of an item in the layout.
+ * @brief Retrieve the default size of an item in the layout.
*
* @note layout-position is not provided as a parameter, since applying size constraints is not recommended.
* Animating to target-sizes is preferable, since this allows controls to perform layouting without constraints.
* @param[in] itemId The ID of an item in the layout.
* @param[in] layoutSize The layout size
- * @param[out] itemSize The target size of an item, or an uninitialized value.
- * @return Whether the item size is available or not
- */
- virtual bool GetItemSize(unsigned int itemId, Vector3 layoutSize, Vector3& itemSize) const = 0;
-
- /**
- * @brief Retrieve the resize animation in the layout.
- *
- * @note This allows the layout to provide its own resize animation.
- * @param[in] animation The resize animation, not owned by the layout
- * @param[in] actor The actor to animate
- * @param [in] size The target size.
- * @param [in] durationSeconds The duration of the resizing.
- */
- virtual void GetResizeAnimation(Animation& animation, Actor actor, Vector3 size, float durationSeconds) const = 0;
-
- /**
- * @brief Retrieve the position constraint function of an item in the layout.
- *
- * The constraint will be applied when the item is created or the layout is activated.
- * @param[in] itemId The ID of an item in the layout.
- * @param[out] constraint The position constraint function of an item, or an uninitialized function pointer.
- * @return Whether the position constraint function of an item is available or not
- */
- virtual bool GetPositionConstraint(unsigned int itemId, Vector3Function& constraint) const = 0;
-
- /**
- * @brief Retrieve the rotation constraint function of an item in the layout.
- *
- * The constraint will be applied when the item is created or the layout is activated.
- * @param[in] itemId The ID of an item in the layout.
- * @param[out] constraint The rotation constraint function of an item, or an uninitialized function pointer.
- * @return Whether the rotation constraint function of an item is available or not
- */
- virtual bool GetRotationConstraint(unsigned int itemId, QuaternionFunction& constraint) const = 0;
-
- /**
- * @brief Retrieve the scale constraint function of an item in the layout.
- *
- * The constraint will be applied when the item is created or the layout is activated.
- * @param[in] itemId The ID of an item in the layout.
- * @param[out] constraint The scale constraint function of an item, or an uninitialized function pointer.
- * @return Whether the scale constraint function of an item is available or not
- */
- virtual bool GetScaleConstraint(unsigned int itemId, Vector3Function& constraint) const = 0;
-
- /**
- * @brief Retrieve the color constraint function of an item in the layout.
- *
- * The constraint will be applied when the item is created or the layout is activated.
- * @param[in] itemId The ID of an item in the layout.
- * @param[out] constraint The color constraint function of an item, or an uninitialized function pointer.
- * @return Whether the color constraint function of an item is available or not
- */
- virtual bool GetColorConstraint(unsigned int itemId, Vector4Function& constraint) const = 0;
-
- /**
- * @brief Retrieve the visibility constraint function of an item in the layout.
- *
- * The constraint will be applied when the item is created or the layout is activated.
- * @param[in] itemId The ID of an item in the layout.
- * @param[out] constraint The visibility constraint function of an item, or an uninitialized function pointer.
- * @return Whether the visibility constraint function of an item is available or not
+ * @param[out] itemSize The target size of an item.
*/
- virtual bool GetVisibilityConstraint(unsigned int itemId, BoolFunction& constraint) const = 0;
+ virtual void GetDefaultItemSize( unsigned int itemId, const Vector3& layoutSize, Vector3& itemSize ) const = 0;
/**
* @brief Query the scroll direction of the layout.
* @param[in] loopEnabled Whether the KeyboardFocusManager is set to wrap around between first and last item
* @return The next item ID.
*/
- DALI_IMPORT_API virtual int GetNextFocusItemID(int itemID, int maxItems, Dali::Toolkit::Control::KeyboardFocusNavigationDirection direction, bool loopEnabled);
+ DALI_IMPORT_API virtual int GetNextFocusItemID(int itemID, int maxItems, Dali::Toolkit::Control::KeyboardFocus::Direction direction, bool loopEnabled);
/**
* @brief Query the flick speed factor of the layout while swipping.
*
* @param[in] actor The actor to constrain.
* @param[in] itemId The ID of the item represented by the actor.
- * @param[in] durationSeconds The time taken to fully constrain the actors.
- * @param[in] scrollPositionObject The object which provides the layout position property.
+ * @param[in] layoutSize the current size of the item view instance.
* @param[in] itemViewActor The item view instance which requests the application of constraints.
*/
- DALI_IMPORT_API virtual void ApplyConstraints( Actor& actor, const int itemId, const float durationSeconds, Handle scrollPositionObject, const Actor& itemViewActor );
+ DALI_IMPORT_API virtual void ApplyConstraints( Actor& actor, const int itemId, const Vector3& layoutSize, const Actor& itemViewActor ) = 0;
/**
* @brief Gets the position of a given item
* @param[in] layoutSize the current size of the item view instance
* @return The item position (x,y,z)
*/
- DALI_IMPORT_API virtual Vector3 GetItemPosition(int itemID, float currentLayoutPosition, const Vector3& layoutSize) const;
-
- /**
- * @brief Set the alpha function used when applying constraints
- *
- * @param[in] func The alpha function to use.
- */
- DALI_IMPORT_API void SetAlphaFunction(AlphaFunction func);
+ DALI_IMPORT_API virtual Vector3 GetItemPosition(int itemID, float currentLayoutPosition, const Vector3& layoutSize) const = 0;
/**
- * @brief Retrieve the alpha function used when applying constraints
+ * Retrieve the extension for this layout.
*
- * @return The alpha function.
+ * @return The extension if available, NULL otherwise
*/
- DALI_IMPORT_API AlphaFunction GetAlphaFunction() const;
+ virtual Extension* GetExtension()
+ {
+ return NULL;
+ }
protected:
*/
DALI_IMPORT_API ItemLayout();
+private:
+
+ /**
+ * Don't allow copy constructor
+ */
+ ItemLayout( const ItemLayout& handle );
+
+ /**
+ * Don't allow copy operator
+ */
+ ItemLayout& operator=( const ItemLayout& handle );
+
protected:
- ControlOrientation::Type mOrientation; ///< the orientation of the layout.
- AlphaFunction mAlphaFunction; ///< Alpha function to be applied when removing/adding constraints
- Handle mWeightObject; ///< Weight object gets created to apply the constraints over a certain time
+ struct Impl;
+ Impl* mImpl;
};
} // namespace Toolkit
projects / platform / core / uifw / dali-toolkit.git / blobdiff