#include <Inventor/nodes/SoExtSelection.h>
Inheritance diagram for SoExtSelection:
Public Types | |
enum | LassoType { NOLASSO, LASSO, RECTANGLE } |
enum | LassoPolicy { FULL_BBOX, PART_BBOX, FULL, PART } |
Public Member Functions | |
SoExtSelection (void) | |
void | useOverlay (SbBool overlay=TRUE) |
SbBool | isUsingOverlay (void) |
SoSeparator * | getOverlaySceneGraph (void) |
void | setOverlayLassoColorIndex (const int index) |
int | getOverlayLassoColorIndex (void) |
void | setLassoColor (const SbColor &color) |
const SbColor & | getLassoColor (void) |
void | setLassoWidth (const float width) |
float | getLassoWidth (void) |
void | setOverlayLassoPattern (const unsigned short pattern) |
unsigned short | getOverlayLassoPattern (void) |
void | animateOverlayLasso (const SbBool animate=TRUE) |
SbBool | isOverlayLassoAnimated (void) |
virtual void | handleEvent (SoHandleEventAction *action) |
virtual void | GLRenderBelowPath (SoGLRenderAction *action) |
void | setLassoFilterCallback (SoLassoSelectionFilterCB *f, void *userdata=NULL, const SbBool callonlyifselectable=TRUE) |
void | setTriangleFilterCallback (SoExtSelectionTriangleCB *func, void *userdata=NULL) |
void | setLineSegmentFilterCallback (SoExtSelectionLineSegmentCB *func, void *userdata=NULL) |
void | setPointFilterCallback (SoExtSelectionPointCB *func, void *userdata=NULL) |
SbBool | wasShiftDown (void) const |
Static Public Member Functions | |
void | initClass (void) |
Public Attributes | |
SoSFEnum | lassoType |
SoSFEnum | lassoPolicy |
Protected Member Functions | |
virtual | ~SoExtSelection () |
This class enables you to select geometry by specifying a lasso (a polygon) or a rectangle on screen. When objects are selected, you'll receive the same callbacks as for the SoSelection node.
This node class is an extension versus the original SGI Inventor v2.1 API. It is based on the API of TGS Inventor's SoExtSelection, and we aim to be fully compatible with this node to enable users to switch between using Coin and TGS Inventor. Please contact us if you find discrepancies between Coin SoExtSelection and TGS SoExtSelection.
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Enum for type of lasso selection.
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Enum for specifying how objects are selected. |
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Constructor. |
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Destructor. |
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Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system. Reimplemented from SoSelection. |
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Specifies whether the overlay planes should be used to render the lasso. This method has been obsoleted in Coin, as most graphics cards comes without support for overlay rendering. A better strategy is to just "overlay" the lasso graphics on top of the scene after everything else has been rendered -- and this is the strategy we apply in Coin. |
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Returns whether overlay planes are used to draw the lasso.
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Returns the scene graph for overlay rendering. Will always return NULL in Coin, as this method has been obsoleted. (It is probably used in TGS Inventor from the SoXt / SoWin libraries' So[Xt|Win]RenderArea class to fetch the overlay graph to draw, and as such should be treated as an internal method.) |
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Obsoleted in Coin, use SoExtSelection::setLassoColor() instead. |
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Obsoleted in Coin, use SoExtSelection::getLassoColor() instead.
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Sets the lasso/rectangle line color. Default value is (1.0, 1.0, 1.0). |
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Returns the lasso color. |
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Sets the lasso line width. Default value is 1.0. |
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Returns the lasso line width. |
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Sets the lasso line pattern. Default value is 0xf0f0. |
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Returns the lasso line pattern. |
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Sets whether the lasso should be animated by scrolling the line pattern. |
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Returns whether the lasso is set to animate or not. |
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Action method for SoHandleEventAction. Inspects the event data from action, and processes it if it is something which this node should react to. Nodes influencing relevant state variables for how event handling is done also overrides this method. Reimplemented from SoSelection. |
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SGI Open Inventor v2.1 obsoleted support for SoGLRenderAction::addMethod(). Instead, GLRender() might be called directly, and to optimize traversal, the SoSeparator node calls GLRenderBelowPath whenever the path code is BELOW_PATH or NO_PATH (path code is guaranteed not to change). To be compatible with SGI's Inventor (and thereby also TGS') we have chosen to follow their implementation in this respect. SoSeparator::GLRenderBelowPath() do not traverse its children using SoChildList::traverse(), but calls GLRenderBelowPath() directly for all its children. Reimplemented from SoSeparator. |
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The lasso selection filter callback is called when a node is about to be selected, and enables the application programmer to return a new path to be used when selecting. The new returned path should not be ref'd. SoExtSelection will ref() and unref() it. To cancel the selection, return NULL from the callback. if callonlyifselectable is TRUE, the callback will only be invoked when the path to the new node pass through the SoExtSelection node. This method is specific to Coin, and is not part of TGS OIV. |
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Sets the callback that will be called for every triangle inside the lasso/rectangle when selecting. The user should return FALSE if he/she wants to continue receiving callbacks. When the user returns TRUE, the object/shape is selected, and no more callbacks will be invoked for the object. |
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Sets the callback that will be called for every line segment inside the lasso/rectangle when selecting. The user should return FALSE if he/she wants to continue receiving callbacks. When the user returns TRUE, the object/shape is selected, and no more callbacks will be invoked for the object. |
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Sets the callback that will be called for every point inside the lasso/rectangle when selecting. The user should return FALSE if he/she wants to continue receiving callbacks. When the user returns TRUE, the object/shape is selected, and no more callbacks will be invoked for the object. |
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Returns whether the SHIFT key was pressed during the latest user interaction. This is useful if you want to respect the shift policy while selecting primitives. This method is specific to Coin, and is not part of TGS OIV. |
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Field for lasso type. Default value is NOLASSO. |
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Field for lasso policy. Default value is FULL_BBOX. |