Rogue Wave Views Manager Package API Reference Guide |
Rogue Wave Views Documentation Home |
Manager interactor class. More...
#include <ilviews/manager/polyint.h>
Public Member Functions | |
IlvPolySelectInteractor (IlvManager *manager, IlvView *view) | |
Constructor. More... | |
void | abort () |
Aborts the interaction. More... | |
virtual IlBoolean | acceptPoint (IlvPolyPoints *polypt, IlUInt index) |
Indicates whether a given point in the polypoint can move. More... | |
virtual IlBoolean | acceptRotate (IlvPolyPoints *polypt) |
Indicates whether the polypoint may rotate. More... | |
virtual IlvPolySelection * | createPolySelection (IlvPolyPoints *polypt) |
Returns a new IlvPolySelection . More... | |
virtual void | doChangePoint (IlvPolyPoints *polypt, IlUInt index, IlvPoint &value) |
Finalizes the interaction by moving a given point. More... | |
virtual void | doRotate (IlvPolyPoints *polypt, IlFloat angle) |
Finalizes the interaction by rotating the polypoint. More... | |
void | drawGhost () |
Visual feedback during the interaction. More... | |
IlvPolySelection * | getPolySelection () const |
Returns the IlvPolySelection . More... | |
IlBoolean | handleEvent (IlvEvent &event) |
Handles events for the manager view. More... | |
void | handleExpose (IlvRegion *rect=0) |
Called when the manager view receives an expose event. More... | |
void | init () |
Initialization, when the interactor is attached to a view. More... | |
virtual IlvPolyPoints * | selectPolyPoints (IlvPoint &point) |
Returns a polypoint containing a given point. More... | |
Public Member Functions inherited from IlvManagerViewInteractor | |
IlvManagerViewInteractor (IlvManager *manager, IlvView *view) | |
Initializes a new IlvManagerViewInteractor . More... | |
virtual void | ensureVisible (const IlvPoint &point) |
Ensures the visibility of a given location. More... | |
IlvDisplay * | getDisplay () const |
Returns the display of the manager view. More... | |
IlvManager * | getManager () const |
Returns the manager. More... | |
IlvTransformer * | getTransformer () const |
Returns the transformer used with the manager view. More... | |
IlvView * | getView () const |
Returns the manager view. More... | |
Manager interactor class.
Library: ilvmgr
Note: this class is kept for compatibility purposes only. New developments should use the IlvEditPointsInteractor
instead.
The IlvPolySelectInteractor
class handles the editing of IlvPolyPoints
objects such as splines and polylines in a view controlled by a manager. Once you click the IlvPolyPoints
object, each point can be moved independently.
IlvPolySelectInteractor::IlvPolySelectInteractor | ( | IlvManager * | manager, |
IlvView * | view | ||
) |
Constructor.
Calls the constructor of the parent class.
manager | The manager. |
view | The manager view. |
|
virtual |
Aborts the interaction.
Called by the manager when the user changes the current interactor. It resets the interactor to a state in which it appears to have never been launched. A common implementation is to erase the ghost image. Call this member function to inhibit the interactor action in particular circumstances.
Reimplemented from IlvManagerViewInteractor.
|
virtual |
Indicates whether a given point in the polypoint can move.
IlTrue
if changing the value of the point is allowed. polypt | The polypoint. |
index | Specifies the point index in the polypoint. |
|
virtual |
Indicates whether the polypoint may rotate.
IlTrue
if the user is allowed to rotate the polypoint. polypt | The polypoint. |
|
virtual |
Returns a new IlvPolySelection
.
Creates an instance of IlvPolySelection
that defines the given IlvPolyPoints
object.
IlvPolySelection
object. polypt | The polypoint. |
|
virtual |
Finalizes the interaction by moving a given point.
Is called when the user releases the mouse button after dragging a given point of the polypoint.
polypt | The polypoint. |
index | Specifies the point index in the polypoint. |
value | The new coordinates of the point. |
|
virtual |
Finalizes the interaction by rotating the polypoint.
Applies a rotation to the specified polypoint object.
polypt | The polypoint. |
angle | Specifies the rotation angle in degrees. |
|
virtual |
Visual feedback during the interaction.
Called to draw a preview image of the resulting user action (the ghost image of the interactor). This function is generally invoked by IlvManagerViewInteractor::handleEvent()
as a response to user events.
Reimplemented from IlvManagerViewInteractor.
IlvPolySelection* IlvPolySelectInteractor::getPolySelection | ( | ) | const |
Returns the IlvPolySelection
.
IlvPolySelection
that defines the selected IlvPolyPoints
object. Handles events for the manager view.
Called by the manager for which the interactor was created with every event it receives in the interactor view.
IlTrue
if the event is consumed, IlFalse
otherwise. Implements IlvManagerViewInteractor.
|
virtual |
Called when the manager view receives an expose event.
Called by the manager when an exposure request occurs in the interactor view to redraw shapes handled by the interactor, such as a ghost image. The basic implementation calls the member function IlvManagerViewInteractor::drawGhost()
after the clipping region has been set to the exposed area.
clip | Specifies the exposed area. |
Reimplemented from IlvManagerViewInteractor.
|
virtual |
Initialization, when the interactor is attached to a view.
Resets the interactor to its initial state.
Called by the manager whenever the interactor is associated with a view. An association of this kind is established by the member function IlvManager::setInteractor()
.
Reimplemented from IlvManagerViewInteractor.
|
virtual |
Returns a polypoint containing a given point.
IlvPolyPoints
that contains the point point
. point | The point. |
© Copyright 2016, Rogue Wave Software, Inc. All Rights Reserved.
Rogue Wave is a registered trademark of Rogue Wave Software, Inc. in the United States and other countries. All other trademarks are the property of their respective owners.