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SoFontStyle.3coin2

NAME

SoFontStyle -

The SoFontStyle class changes the appearance of fonts for text rendering nodes.

Successive text rendering nodes will use fonts with the style settings of this node, if a font with the given settings can be found and loaded from the system.

SYNOPSIS

#include <Inventor/nodes/SoFontStyle.h>

Inherits SoFont.

Public Types

enum Family { SERIF, SANS, TYPEWRITER }

enum Style { NONE, BOLD, ITALIC }

Public Member Functions

SoFontStyle (void)

SbString getFontName (void) const

virtual void doAction (SoAction *action)

virtual void getBoundingBox (SoGetBoundingBoxAction *action)

virtual void GLRender (SoGLRenderAction *action)

virtual void callback (SoCallbackAction *action)

virtual void pick (SoPickAction *action)

virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)

Static Public Member Functions

static void initClass (void)

Public Attributes

SoSFEnum family

SoSFBitMask style

Protected Member Functions

virtual ~SoFontStyle ()

Detailed Description

The SoFontStyle class changes the appearance of fonts for text rendering nodes.

Successive text rendering nodes will use fonts with the style settings of this node, if a font with the given settings can be found and loaded from the system.

If the specified font style cannot be found on the client system, a default fallback will be used. So the application programmer must consider SoFontStyle nodes as nodes giving hints about font settings, as you are not guaranteed to get exactly what you want.

Currently the SERIF family is mapped to 'Times New Roman', SANS is mapped to 'Arial' and TYPEWRITER is mapped to 'Courier New'.

Please note that this node is inheriting SoFont. Previous font settings in a branch will therefore be overwritten with the default values of SoFont if an empty SoFontStyle node is inserted in the branch.

NB! This node is provided for reasons of compatibility with Open Inventor 2.1 but will in most cases result in the default font being rendered. It is highly recommended to use the SoFont node instead.

FILE FORMAT/DEFAULTS:

     FontStyle {
         name 'defaultFont'
         size 10
         family SERIF
         style ()
     }
 
 

Since:

Inventor 2.1

See also:

SoFont, SoText2, SoText3, SoAsciiText, SoGlyph

Member Enumeration Documentation

enum SoFontStyle::FamilyEnumeration of the font family to use.

enum SoFontStyle::StyleEnumeration of font style characteristics.

Constructor & Destructor Documentation

SoFontStyle::SoFontStyle (void)Constructor.

References family, and style.

SoFontStyle::~SoFontStyle () [protected, virtual]Destructor.

Member Function Documentation

void SoFontStyle::initClass (void) [static]Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Reimplemented from SoFont.

References SoNode::VRML1.

SbString SoFontStyle::getFontName (void) constReturns a system-specific text string to use for font loading, based on the style settings of this node.

References family, SbName::getString(), SoFont::name, SoDebugError::postWarning(), and style.

Referenced by doAction().

void SoFontStyle::doAction (SoAction * action) [virtual]This function performs the typical operation of a node for any action.

Reimplemented from SoFont.

References getFontName(), SoAction::getState(), SoField::isIgnored(), SoNode::isOverride(), SoFont::name, SoFieldContainer::set(), SoOverrideElement::setFontNameOverride(), SoOverrideElement::setFontSizeOverride(), and SoFont::size.

Referenced by callback(), getBoundingBox(), getPrimitiveCount(), GLRender(), and pick().

void SoFontStyle::getBoundingBox (SoGetBoundingBoxAction * action) [virtual]Action method for the SoGetBoundingBoxAction.

Calculates bounding box and center coordinates for node and modifies the values of the action to encompass the bounding box for this node and to shift the center point for the scene more towards the one for this node.

Nodes influencing how geometry nodes calculates their bounding box also overrides this method to change the relevant state variables.

Reimplemented from SoFont.

References doAction().

void SoFontStyle::GLRender (SoGLRenderAction * action) [virtual]Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.

Reimplemented from SoFont.

References doAction().

void SoFontStyle::callback (SoCallbackAction * action) [virtual]Action method for SoCallbackAction.

Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph.

Reimplemented from SoFont.

References doAction().

void SoFontStyle::pick (SoPickAction * action) [virtual]Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoFont.

References doAction().

void SoFontStyle::getPrimitiveCount (SoGetPrimitiveCountAction * action) [virtual]Action method for the SoGetPrimitiveCountAction.

Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the action.

Nodes influencing how geometry nodes calculates their primitive count also overrides this method to change the relevant state variables.

Reimplemented from SoFont.

References doAction().

Member Data Documentation

SoSFEnum SoFontStyle::familyFont family hint.

Referenced by getFontName(), and SoFontStyle().

SoSFBitMask SoFontStyle::styleFont style hint.

Referenced by getFontName(), and SoFontStyle().

Author

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