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SoFontStyle Class Reference
[Nodes]

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. More...

#include <Inventor/nodes/SoFontStyle.h>

Inheritance diagram for SoFontStyle:

SoFont SoNode SoFieldContainer SoBase

List of all members.

Public Types

enum  Family { SERIF, SANS, TYPEWRITER }
enum  Style { NONE, BOLD, ITALIC }

Public Member Functions

virtual SoType getTypeId (void) const
 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 SoType getClassTypeId (void)
static void initClass (void)

Public Attributes

SoSFEnum family
SoSFBitMask style

Protected Member Functions

virtual const SoFieldDatagetFieldData (void) const
virtual ~SoFontStyle ()

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)


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

Enumeration of the font family to use.

Enumeration of font style characteristics.


Constructor & Destructor Documentation

SoFontStyle::SoFontStyle ( void   ) 

Constructor.

References family, and style.

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

Destructor.


Member Function Documentation

SoType SoFontStyle::getClassTypeId ( void   )  [static]

This static method returns the SoType object associated with objects of this class.

Reimplemented from SoFont.

SoType SoFontStyle::getTypeId ( void   )  const [virtual]

Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and "downward" casting.

Usage example:

  void foo(SoNode * node)
  {
    if (node->getTypeId() == SoFile::getClassTypeId()) {
      SoFile * filenode = (SoFile *)node;  // safe downward cast, knows the type
    }
    else if (node->getTypeId().isOfType(SoGroup::getClassTypeId())) {
      SoGroup * group = (SoGroup *)node;  // safe downward cast, knows the type
    }
  }

For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on.

For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups.

Reimplemented from SoFont.

const SoFieldData ** SoFontStyle::getFieldDataPtr ( void   )  [static, protected]

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Reimplemented from SoFont.

const SoFieldData * SoFontStyle::getFieldData ( void   )  const [protected, virtual]

Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL.

Reimplemented from SoFont.

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   )  const

Returns a system-specific text string to use for font loading, based on the style settings of this node.

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

Referenced by doAction().

void SoFontStyle::doAction ( SoAction action  )  [virtual]

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

Font family hint.

Referenced by getFontName(), and SoFontStyle().

Font style hint.

Referenced by getFontName(), and SoFontStyle().


The documentation for this class was generated from the following files:

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Generated on Mon Feb 23 16:33:49 2009 for Coin by Doxygen. 1.5.8