Unigine::Plugins::SpiderVision::BlendZonesData Class
| Header: | #include <plugins/Unigine/SpiderVision/UnigineSpiderVision.h> |
This class stores data on all blend zones created for the viewport and provides the interface for configuring each blend zone.
The blend zone is an arbitrary shape formed by three vertical lines so that it has two parts — one part is a mask (from blue to green line), and the other one (from green to red line) is a gradient zone.
The blend zone data are stored in the configuration file.
To configure parameters of a specific blend zone of a viewport, the methods of this class are to be used. However, the instance of the BlendZonesData class doesn't store any information on which viewport it is assigned to — the information is stored in the ViewportData class instance.
BlendZonesData Class
Enums
BLEND_POINT_ROLE#
Members
void setEnabled ( bool enabled ) #
Sets a new value indicating if blend zones rendering is enabled.
Arguments
- bool enabled - Set true to enable rendering of blend zones; false - to disable it.
bool isEnabled() const#
Returns the current value indicating if blend zones rendering is enabled.
Return value
true if rendering of blend zones is enabled; otherwise false.int getNumZones() const#
Returns the current total number of blend zones.
Return value
Current total number of blend zones.static Event<> getEventChanged() const#
event triggered on changing blend zones data. You can subscribe to events via connect() and unsubscribe via disconnect(). You can also use EventConnection and EventConnections classes for convenience (see examples below).
The event handler signature is as follows: myhandler()Notice
For more details see the Event Handling article.
Usage Example
Source code (C++)
// implement the Changed event handler
void changed_event_handler()
{
Log::message("\Handling Changed event\n");
}
//////////////////////////////////////////////////////////////////////////////
// 1. Multiple subscriptions can be linked to an instance of the EventConnections
// class that you can use later to remove all these subscriptions at once
//////////////////////////////////////////////////////////////////////////////
// create an instance of the EventConnections class
EventConnections changed_event_connections;
// link to this instance when subscribing to an event (subscription to various events can be linked)
BlendZonesData::getEventChanged().connect(changed_event_connections, changed_event_handler);
// other subscriptions are also linked to this EventConnections instance
// (e.g. you can subscribe using lambdas)
BlendZonesData::getEventChanged().connect(changed_event_connections, []() {
Log::message("\Handling Changed event (lambda).\n");
}
);
// ...
// later all of these linked subscriptions can be removed with a single line
changed_event_connections.disconnectAll();
//////////////////////////////////////////////////////////////////////////////
// 2. You can subscribe and unsubscribe via an instance of the EventConnection
// class. And toggle this particular connection off and on, when necessary.
//////////////////////////////////////////////////////////////////////////////
// create an instance of the EventConnection class
EventConnection changed_event_connection;
// subscribe to the Changed event with a handler function keeping the connection
BlendZonesData::getEventChanged().connect(changed_event_connection, changed_event_handler);
// ...
// you can temporarily disable a particular event connection to perform certain actions
changed_event_connection.setEnabled(false);
// ... actions to be performed
// and enable it back when necessary
changed_event_connection.setEnabled(true);
// ...
// remove subscription to the Changed event via the connection
changed_event_connection.disconnect();
//////////////////////////////////////////////////////////////////////////////
// 3. You can add EventConnection/EventConnections instance as a member of the
// class that handles the event. In this case all linked subscriptions will be
// automatically removed when class destructor is called
//////////////////////////////////////////////////////////////////////////////
// Class handling the event
class SomeClass
{
public:
// instance of the EventConnections class as a class member
EventConnections e_connections;
// A Changed event handler implemented as a class member
void event_handler()
{
Log::message("\Handling Changed event\n");
// ...
}
};
SomeClass *sc = new SomeClass();
// ...
// specify a class instance in case a handler method belongs to some class
BlendZonesData::getEventChanged().connect(sc->e_connections, sc, &SomeClass::event_handler);
// ...
// handler class instance is deleted with all its subscriptions removed automatically
delete sc;
//////////////////////////////////////////////////////////////////////////////
// 4. Subscribe to an event saving a particular connection ID
// and unsubscribe later by this ID
//////////////////////////////////////////////////////////////////////////////
// instance of the EventConnections class to manage event connections
EventConnections e_connections;
// define a particular connection ID to be used to unsubscribe later
EventConnectionId changed_handler_id;
// subscribe to the Changed event with a lambda handler function and keeping connection ID
changed_handler_id = BlendZonesData::getEventChanged().connect(e_connections, []() {
Log::message("\Handling Changed event (lambda).\n");
}
);
// remove the subscription later using the ID
BlendZonesData::getEventChanged().disconnect(changed_handler_id);
//////////////////////////////////////////////////////////////////////////////
// 5. Ignoring all Changed events when necessary
//////////////////////////////////////////////////////////////////////////////
// you can temporarily disable the event to perform certain actions without triggering it
BlendZonesData::getEventChanged().setEnabled(false);
// ... actions to be performed
// and enable it back when necessary
BlendZonesData::getEventChanged().setEnabled(true);Return value
Event reference.int addZone ( ) #
Adds a new blend zone for the viewport.Return value
Index of the added blend zone.void removeZone ( int index ) #
Removes the specified blend zone.Arguments
- int index - Index of the blend zone.
void clear ( ) #
Clears all blend zones.void changeZoneResolution ( int zone, int count ) #
Defines the number of lines between the start and the end point that help configuring the contour. This method corresponds to the Resolution parameter in blend zone settings in UI.Arguments
- int zone - Index of the blend zone.
- int count - Number of lines in the area from the start to the end point of the blend zone.
void setZoneEnabled ( int zone, bool in_enabled ) #
Enables or disables the specified blend zone.Arguments
- int zone - Index of the blend zone.
- bool in_enabled - true to enable the specified blend zone, false to disable it.
bool isZoneEnabled ( int zone ) const#
Returns the value indicating if the specified blend zone is enabled.Arguments
- int zone - Index of the blend zone.
Return value
true if the specified blend zone is enabled, otherwise false.void setZoneAlpha ( int zone, float in_alpha ) #
Sets the alpha value for the specified blend zone.Arguments
- int zone - Index of the blend zone.
- float in_alpha - Alpha value.
float getZoneAlpha ( int zone ) const#
Returns the alpha value for the specified blend zone.Arguments
- int zone - Index of the blend zone.
Return value
Alpha value.void setZoneContrast ( int zone, float in_contrast ) #
Sets the contrast value for the specified blend zone.Arguments
- int zone - Index of the blend zone.
- float in_contrast - Contrast value.
float getZoneContrast ( int zone ) const#
Returns the contrast value for the specified blend zone.Arguments
- int zone - Index of the blend zone.
Return value
Contrast value.void setZoneGamma ( int zone, float in_gamma ) #
Sets the gamma value for the specified blend zone.Arguments
- int zone - Index of the blend zone.
- float in_gamma - Gamma value.
float getZoneGamma ( int zone ) const#
Returns the gamma value for the specified blend zone.Arguments
- int zone - Index of the blend zone.
Return value
Gamma value.void setZoneLinked ( int zone, bool linked ) #
Sets the value specifying if linking of the zone is enabled. If enabled, allows adjusting Alpha, Contrast, and Gamma for two blends simultaneously for better neighboring of two viewports.Arguments
- int zone - Index of the blend zone.
- bool linked - true to enable linking of the zone, false to disable it.
bool isZoneLinked ( int zone ) const#
Returns the value specifying if linking of the zone is enabled. If enabled, allows adjusting Alpha, Contrast, and Gamma for two blends simultaneously for better neighboring of two viewports.Arguments
- int zone - Index of the blend zone.
Return value
true if linking of the zone is enabled, otherwise false.void setZoneLink ( int zone, const Math::ivec2 & link ) #
Links two blendzones to configure their parameters sinchronously.Arguments
- int zone - Index of the blend zone.
- const
Math::ivec2 & link - Vector containing two values:
- Index of the vieport the blend zone of which is to be linked
- Index of the blend zone in the list of blend zones of that viewport
Math::ivec2 getZoneLink ( int zone ) const#
Returns the information on the blend zone linked to this blend zone.Arguments
- int zone - Index of the blend zone.
Return value
Vector containing two values:- Index of the vieport the blend zone of which is to be linked
- Index of the blend zone in the list of blend zones of that viewport
int addLine ( int zone ) #
Adds the line to the specified blend zone.Arguments
- int zone - Index of the blend zone.
Return value
Index of the line.void removeLine ( int zone, int index ) #
Removes the specified line from the specified blend zone.Arguments
- int zone - Index of the blend zone.
- int index - Index of the line.
int getNumLines ( int zone ) const#
Returns the total number of lines for the specified blend zone.Arguments
- int zone - Index of the blend zone.
Return value
Total number of lines.void setLinePoint ( int zone, int line, BlendZonesData::BLEND_POINT_ROLE type, const Math::vec2 & point ) #
Sets the point with the specified coordinates and type on the specified line of the specified blend zone.Arguments
- int zone - Index of the blend zone.
- int line - Index of the line.
- BlendZonesData::BLEND_POINT_ROLE type - Type of the point.
- const Math::vec2 & point - Coordinates of the point.
Math::vec2 getLinePoint ( int zone, int line, BlendZonesData::BLEND_POINT_ROLE type ) const#
Returns the coordinates of the point with the specified type on the specified line of the specified blend zone.Arguments
- int zone - Index of the blend zone.
- int line - Index of the line.
- BlendZonesData::BLEND_POINT_ROLE type - Type of the point.
Return value
Coordinates of the point.void setLinePointHandleLeft ( int zone, int line, BlendZonesData::BLEND_POINT_ROLE type, const Math::vec2 & handle_left ) #
Sets the coordinates of the left handle for the specified point.Arguments
- int zone - Index of the blend zone.
- int line - Index of the line.
- BlendZonesData::BLEND_POINT_ROLE type - Type of the point.
- const Math::vec2 & handle_left - Coordinates of the handle.
Math::vec2 getLinePointHandleLeft ( int zone, int line, BlendZonesData::BLEND_POINT_ROLE type ) const#
Returns the coordinates of the left handle for the specified point.Arguments
- int zone - Index of the blend zone.
- int line - Index of the line.
- BlendZonesData::BLEND_POINT_ROLE type - Type of the point.
Return value
Coordinates of the handle.void setLinePointHandleRight ( int zone, int line, BlendZonesData::BLEND_POINT_ROLE type, const Math::vec2 & handle_right ) #
Sets the coordinates of the right handle for the specified point.Arguments
- int zone - Index of the blend zone.
- int line - Index of the line.
- BlendZonesData::BLEND_POINT_ROLE type - Type of the point.
- const Math::vec2 & handle_right - Coordinates of the handle.
Math::vec2 getLinePointHandleRight ( int zone, int line, BlendZonesData::BLEND_POINT_ROLE type ) const#
Returns the coordinates of the right handle for the specified point.Arguments
- int zone - Index of the blend zone.
- int line - Index of the line.
- BlendZonesData::BLEND_POINT_ROLE type - Type of the point.
Return value
Coordinates of the handle.void setLinePointSmoothType ( int zone, int line, BlendZonesData::BLEND_POINT_ROLE type, ViewportData::POINT_SMOOTH_TYPE smooth_type ) #
Sets the line curving behavior for the point.Arguments
- int zone - Index of the blend zone.
- int line - Index of the line.
- BlendZonesData::BLEND_POINT_ROLE type - Type of the point.
- ViewportData::POINT_SMOOTH_TYPE smooth_type - Type of the line curving behavior in the point.
ViewportData::POINT_SMOOTH_TYPE getLinePointSmoothType ( int zone, int line, BlendZonesData::BLEND_POINT_ROLE type ) const#
Returns the line curving behavior for the point.Arguments
- int zone - Index of the blend zone.
- int line - Index of the line.
- BlendZonesData::BLEND_POINT_ROLE type - Type of the point.
Return value
Type of the line curving behavior in the point.void setZoneName ( int zone, const char * name ) #
Sets the name for the blend zone.Arguments
- int zone - Index of the blend zone.
- const char * name - Name of the blend zone.
String getZoneName ( int zone ) const#
Returns the name of the blend zone.Arguments
- int zone - Index of the blend zone.
Return value
Name of the blend zone.void setZoneSmooth ( int zone, int value ) #
Sets the smooth value that defines the roundness of the blend zone edges.Arguments
- int zone - Index of the blend zone.
- int value - Smooth value, the number of additional points creating the Bezier spline between two blend zone points.
int getZoneSmooth ( int zone ) const#
Returns the smooth value that defines the roundness of the blend zone edges.Arguments
- int zone - Index of the blend zone.
Return value
Smooth value.void saveXml ( const Ptr<Xml> & xml ) #
Saves the blend zones data to the given instance of the Xml class.Arguments
bool restoreXml ( const Ptr<Xml> & xml ) #
Loads the blend zones data from the specified instance of the Xml class.Arguments
Return value
true if the data has been loaded successfully, otherwise false.void save ( const Ptr<Stream> & stream ) #
Saves the blend zones data to the specified stream.Arguments
void restore ( const Ptr<Stream> & stream ) #
Loads the blend zones data from the specified stream.Arguments
Last update:
2024-10-30
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