Pan input manipulator recognizes a pan gesture from the incoming touch events. More...
#include <kanzi/core.ui/input/pan_manipulator.hpp>
Classes | |
class | BaseMessageArguments |
Base message arguments for pan gestures that contain movement information. More... | |
class | CanceledMessageArguments |
Message arguments for pan cancel message. More... | |
class | EnteredMessageArguments |
Message arguments for pan gesture entered node area message. More... | |
class | FinishedMessageArguments |
Message arguments for pan gesture finished message. More... | |
class | LeftMessageArguments |
Message arguments for pan gesture left node area message. More... | |
class | MovedMessageArguments |
Message arguments for moved message sent during pan gesture. More... | |
class | StartedMessageArguments |
Message arguments for pan gesture started message. More... | |
Public Member Functions | |
size_t | getMaximumNumberOfTouches () const |
Returns the maximum number of touches on the node area for this gesture to be recognized. | |
size_t | getMinimumNumberOfTouches () const |
Returns the minimum number of touches on the node area for this gesture to be recognized. | |
Vector2 | getRecognitionThreshold () const |
Returns the gesture recognition threshold values. | |
void | setMaximumNumberOfTouches (size_t maximumTouches) |
Sets the maximum number of touches on the node area for this gesture to be recognized. | |
void | setMinimumNumberOfTouches (size_t minimumTouches) |
Sets the minimum number of touches on the node area for this gesture to be recognized. | |
void | setRecognitionThreshold (Vector2 threshold) |
Sets the threshold the finger must move before Kanzi recognizes it as a pan gesture. | |
Public Member Functions inherited from kanzi::InputManipulator | |
void | attach (Node &node) |
Attaches an input manipulator to a node. | |
void | cancel () |
Notify manipulator of touch canceling. | |
void | detach () |
Detaches an input manipulator. | |
Node * | getAttachedNode () const |
Gets the node to which the input manipulator is attached. | |
InputManipulator * | getDependantManipulator () const |
Gets the dependant input manipulator. | |
EventRoutingMode | getEventRoutingMode () |
Returns the current input event routing mode. | |
InputManipulatorWeakPtr | getFailManipulator () const |
Gets the fail manipulator. | |
State | getState () const |
Get the state of an input manipulator. | |
KZ_DEPRECATED TouchEventRoutingMode | getTouchEventRoutingMode () |
Returns the current touch event routing mode. | |
ManipulatorType | getType () const |
Returns the type of the input manipulator. | |
bool | isActive () const |
Checks whether an input manipulator is in active state. | |
bool | isAttached () const |
Tells whether the input manipulator is attached to a node. | |
bool | isCancelable () const |
Returns whether an input manipulator is in a cancelable state. | |
bool | isResettable () const |
Returns whether an input manipulator is in a resettable state. | |
void | requireToFail (InputManipulatorWeakPtr manipulatorToFail) |
Sets the input manipulator that must fail before Kanzi can recognize this input manipulator. | |
void | reset () |
Reset the manipulator. | |
void | setEventRoutingMode (EventRoutingMode mode) |
Sets the input event routing mode that you want the input manager to use when distributing the input event data to manipulators. | |
void | setReferenceNode (NodeWeakPtr referenceNode) |
Override the attached node as the hit test reference node. | |
void | setState (State state) |
Set the state of an input manipulator. | |
KZ_DEPRECATED void | setTouchEventRoutingMode (TouchEventRoutingMode mode) |
Sets the touch event routing mode that you want the input manager to use when distributing the touch points to input manipulators. | |
~InputManipulator () override | |
Destructor. | |
Public Member Functions inherited from kanzi::Object | |
AppliedStyleEntrySharedPtr | applyObjectStyle (kanzi::StyleSharedPtr style) |
Applies a style to an object. | |
void | applyObjectStyles () |
Apply all styles for an object node. | |
Domain * | getDomain () const |
Returns the domain the object belongs to. | |
const Metaclass * | getDynamicMetaclass () const override |
Returns the metaclass of the dynamic type of the object. | |
MainLoopScheduler * | getMainLoopScheduler () const |
Returns the MainLoopScheduler instance of the associated Domain. | |
detail::MessageDispatcher * | getMessageDispatcher () const |
Returns the message dispatcher of the object. | |
ResourceManager * | getResourceManager () const |
Returns the resource manager of the object. | |
ScriptingContextSharedPtr | getScriptingContext () const |
Gets the scripting context of the object. | |
Object (Domain *domain) | |
void | setScriptingContext (ScriptingContextSharedPtr context) |
Sets the scripting context of the object. | |
void | unapplyObjectStyle (AppliedStyleEntrySharedPtr appliedStyleEntry) |
void | unapplyObjectStyles () |
Unapplies and removes all applied styles. | |
~Object () override | |
Public Member Functions inherited from kanzi::MetaObject | |
bool | isTypeOf (const Metaclass *objectType) const |
Determines if the type of this object is the given type or derived from it. | |
virtual | ~MetaObject () |
Public Member Functions inherited from kanzi::PropertyObject | |
template<typename DataType > | |
void | addPropertyModifier (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner) |
template<typename DataType > | |
void | addPropertyModifierWithoutNotifyingHandlers (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner) |
Adds a property modifier without notifying handlers. | |
template<typename DataType > | |
void | addPropertyNotificationHandler (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::NotificationCallback callback, void *owner) |
template<typename DataType > | |
void | addPropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource *valueSource, PropertyValuePrecedence precedence, AbstractPropertyTypeDescriptor::ValueSourceOwner *owner) |
template<typename DataType > | |
void | addPropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource *valueSource, PropertyValuePrecedence precedence, void *ownerPointer) |
PropertyStorageContainer::iterator | beginPropertyStorage () |
Returns the begin iterator to the internal property storage container. | |
PropertyStorageContainer::const_iterator | beginPropertyStorage () const |
Returns the begin iterator to the internal property storage container. | |
void | clearPropertyFlag (AbstractPropertyType propertyType, uint32_t flag) |
void | copyLocalValue (const PropertyObject &other, AbstractPropertyType propertyType) |
Copies local value of single property from another object. | |
void | copyLocalValues (const PropertyObject &other) |
Copies all local values from another object. | |
PropertyStorageContainer::iterator | endPropertyStorage () |
Returns the end iterator to the internal property storage container. | |
PropertyStorageContainer::const_iterator | endPropertyStorage () const |
Returns the end iterator to the internal property storage container. | |
template<typename DataType > | |
PropertyType< DataType >::Traits::ReturnType | getAbstractProperty (AbstractPropertyType abstractPropertyType) const |
template<typename DataType > | |
PropertyType< DataType >::Traits::ReturnType | getAbstractPropertyBase (AbstractPropertyType abstractPropertyType) const |
template<typename DataType > | |
optional< typename PropertyType< DataType >::Traits::ReturnType > | getOptionalAbstractProperty (AbstractPropertyType abstractPropertyType) const |
template<typename DataType > | |
optional< typename PropertyType< DataType >::Traits::ReturnType > | getOptionalProperty (const PropertyType< DataType > &propertyType) const |
Evaluates the property value in the same way as the overload above but does not default to the value in property metadata if there are no inputs to the property value. | |
template<typename DataType > | |
optional< typename PropertyType< DataType >::Traits::ReturnType > | getOptionalPropertyBase (const PropertyType< DataType > &propertyType) const |
Returns the current value of a property disregarding modifiers, but does not default to the value in property metadata if there are no inputs to the property value. | |
template<typename DataType > | |
PropertyType< DataType >::Traits::ReturnType | getProperty (const PropertyType< DataType > &propertyType) const |
Returns the current value of a property type. | |
template<typename DataType > | |
PropertyType< DataType >::Traits::ReturnType | getPropertyBase (const PropertyType< DataType > &propertyType) const |
Returns the current value of a property disregarding modifiers. | |
template<typename DataType > | |
size_t | getPropertyNotificationHandlerCount (const PropertyType< DataType > &propertyType) const |
Gets number of current notification handlers for given property type. | |
bool | hasBaseValue (AbstractPropertyType propertyType) const |
Evaluates whether there are any inputs into the property value, disregarding modifiers. | |
bool | hasLocalValue (AbstractPropertyType propertyType) const |
Evaluates whether there is a local value set for the property. | |
bool | hasNonClassValue (AbstractPropertyType propertyType) const |
Evaluates whether there is a value of any precedence higher than class default value set for the property. | |
bool | hasValue (AbstractPropertyType propertyType) const |
Evaluates whether there are any inputs into the property value. | |
bool | isPropertyFlagSet (AbstractPropertyType propertyType, uint32_t flag) const |
virtual void | onPropertyChanged (AbstractPropertyType propertyType, PropertyNotificationReason reason) |
Virtual function to handle property change notifications. | |
PropertyObject () | |
void | removeKzbProperties () |
Remove all KZB properties. | |
void | removeKzbProperties (flat_set< AbstractPropertyType > *keepProperties) |
Remove all KZB properties that are not included in a given set. | |
template<typename DataType > | |
void | removeLocalPropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource *valueSource, void *ownerPointer) |
void | removeLocalValue (AbstractPropertyType propertyType) |
Removes the local value associated with the property. | |
template<typename DataType > | |
void | removePropertyModifier (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner) |
template<typename DataType > | |
void | removePropertyNotificationHandler (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::NotificationCallback callback, void *owner) |
template<typename DataType > | |
void | removePropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource *valueSource, void *ownerPointer) |
template<typename DataType > | |
void | setAbstractProperty (AbstractPropertyType abstractPropertyType, typename PropertyType< DataType >::Traits::ParameterType value) |
template<typename DataType > | |
void | setProperty (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Traits::ParameterType value) |
Sets the local value of a property type. | |
void | setPropertyFlag (AbstractPropertyType propertyType, uint32_t flag) |
KZ_DEPRECATED void | validatePropertyModifiers (AbstractPropertyType propertyType) |
Validates property modifiers and notifies handlers. | |
void | validatePropertyModifiersAndNotifyHandlers (AbstractPropertyType propertyType) |
Validates property modifiers and notifies handlers. | |
virtual | ~PropertyObject () |
Static Public Member Functions | |
static PanManipulatorSharedPtr | create (Domain *domain, string_view="") |
static PropertyTypeEditorInfoSharedPtr | makeEditorInfo () |
Static Public Member Functions inherited from kanzi::Object | |
static const Metaclass * | getStaticMetaclass () |
Returns the metaclass of Object class. | |
static PropertyTypeEditorInfoSharedPtr | makeEditorInfo () |
Default implementation that returns empty editor info. | |
Static Public Member Functions inherited from kanzi::MetaObject | |
static const Metaclass * | getStaticMetaclass () |
Returns the metaclass of Object class. | |
static PropertyTypeEditorInfoSharedPtr | makeEditorInfo () |
Default implementation that returns empty editor info. | |
Static Public Attributes | |
static MessageType< CanceledMessageArguments > | CanceledMessage |
Notifies about the cancellation of a pan gesture. | |
static const size_t | defaultMaximumTouchPoints |
The default maximum touch points constant. | |
static const size_t | defaultMinimumTouchPoints |
The default minimum touch points constant. | |
static const Vector2 | defaultRecognitionThreshold |
The default gesture recognition threshold constant. | |
static MessageType< EnteredMessageArguments > | EnteredMessage |
Notifies about a tracked pan entering the node area. | |
static MessageType< FinishedMessageArguments > | FinishedMessage |
Notifies about the completion of a pan gesture. | |
static MessageType< LeftMessageArguments > | LeftMessage |
Notifies about a tracked pan leaving the node area. | |
static MessageType< MovedMessageArguments > | MovedMessage |
Notifies about the position updates during a pan gesture. | |
static MessageType< StartedMessageArguments > | StartedMessage |
Notifies about the start of a pan gesture. | |
Additional Inherited Members | |
Public Types inherited from kanzi::InputManipulator | |
enum | EventRoutingMode { RoutingBubbling , RoutingTunneling } |
Enumeration for the available input event routing modes. More... | |
enum class | ManipulatorType { TouchInputHandler , KeyInputHandler } |
Enumeration for the input manipulator type. More... | |
enum | State { StateReady , StatePossible , StateBegin , StateChange , StateEnd , StateFail , StateDelayed , StateCanceled } |
Enumeration for possible input manipulator states during touch, mouse, or key input sequence. More... | |
using | TouchEventRoutingMode |
Enumeration for the available touch event routing modes. | |
using | TouchPointsConstIterator |
using | TouchPointsContainer |
Public Types inherited from kanzi::PropertyObject | |
typedef PropertyStorageContainer::const_iterator | PropertyStorageConstIterator |
typedef vector< PropertyStoragePtr > | PropertyStorageContainer |
typedef PropertyStorageContainer::iterator | PropertyStorageIterator |
typedef intrusive_ptr< AbstractPropertyTypeDescriptor::PropertyStorage > | PropertyStoragePtr |
typedef PropertyStorageContainer::reverse_iterator | PropertyStorageReverseIterator |
Protected Types inherited from kanzi::Object | |
typedef vector< AppliedStyleEntrySharedPtr > | AppliedStyleContainer |
Applied style container. | |
Static Protected Member Functions inherited from kanzi::InputManipulator | |
static PropertyTypeEditorInfoSharedPtr | makeEditorInfo () |
Protected Attributes inherited from kanzi::Object | |
AppliedStyleContainer | m_appliedStyles |
Listing of applied styles applied to this object. | |
Pan input manipulator recognizes a pan gesture from the incoming touch events.
It generates messages for different phases of the pan gesture. You can use these messages to implement the logic to move nodes, to pan or to flick scrollable content. For example, you can use the pan input manipulator to scroll a map.
To receive the pan move events, add message handler for the MovedMessage.
First create a handler method:
Then add a message handler for your node:
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explicitprotected |
Constructor.
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static |
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inlinestatic |
Sets the threshold the finger must move before Kanzi recognizes it as a pan gesture.
To disable recognition along an axis, for the components of the threshold use Node2D::unboundedLayoutValue().
threshold | Threshold in pixels required before Kanzi recognizes it as a pan gesture. |
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inline |
Returns the gesture recognition threshold values.
size_t kanzi::PanManipulator::getMinimumNumberOfTouches | ( | ) | const |
Returns the minimum number of touches on the node area for this gesture to be recognized.
The default is 1.
void kanzi::PanManipulator::setMinimumNumberOfTouches | ( | size_t | minimumTouches | ) |
Sets the minimum number of touches on the node area for this gesture to be recognized.
size_t kanzi::PanManipulator::getMaximumNumberOfTouches | ( | ) | const |
Returns the maximum number of touches on the node area for this gesture to be recognized.
The default is unlimited.
void kanzi::PanManipulator::setMaximumNumberOfTouches | ( | size_t | maximumTouches | ) |
Sets the maximum number of touches on the node area for this gesture to be recognized.
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overrideprotectedvirtual |
InputManipulator::notifyTouchInside implementation.
Reimplemented from kanzi::InputManipulator.
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overrideprotectedvirtual |
InputManipulator::notifyTouchOutside implementation.
Reimplemented from kanzi::InputManipulator.
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overrideprotectedvirtual |
InputManipulator::onReset implementation.
Reimplemented from kanzi::InputManipulator.
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overrideprotectedvirtual |
Kanzi calls this method when the PanManipulator is canceled.
When this method is called it generates a CanceledMessage.
Reimplemented from kanzi::InputManipulator.
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protected |
Updates the pan gesture state based on the touch event.
touchInfo | Current touch status information provided by the input manager. |
isTouchFromInside | Whether the function was called from notifyTouchInside() or notifyTouchOutside(). |
The default gesture recognition threshold constant.
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static |
The default minimum touch points constant.
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static |
The default maximum touch points constant.
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static |
Notifies about the start of a pan gesture.
Kanzi sends a StartedMessage when touch is pressed or arrives to the attached node area.
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static |
Notifies about the cancellation of a pan gesture.
Kanzi sends a CanceledMessage when PanManipulator is canceled.
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static |
Notifies about the position updates during a pan gesture.
Kanzi sends a MovedMessage when the pan threshold is exceeded either on horizontal or vertical axis and when the tracked touch has moved between updates.
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static |
Notifies about the completion of a pan gesture.
Kanzi sends a FinishedMessage when the tracked touch is released.
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static |
Notifies about a tracked pan entering the node area.
Kanzi sends an EnteredMessage when the pan gesture enters the node area.
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static |
Notifies about a tracked pan leaving the node area.
Kanzi sends a LeftMessage when the pan gesture leaves the node area.