Open CASCADE Technology
6.5.4
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This class constructs a 2D graphic buffer in a view. It
manages a set of graphic objects and/or primitives.
To draw the buffer, the following elements are required:
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#include <Graphic2d_Buffer.hxx>
Public Member Functions | |
Graphic2d_Buffer (const Handle< Graphic2d_View > &aView, const Quantity_Length aPivotX, const Quantity_Length aPivotY, const Standard_Integer aWidthIndex=0, const Standard_Integer aColorIndex=0, const Standard_Integer aFontIndex=0, const Aspect_TypeOfDrawMode aDrawMode=Aspect_TODM_REPLACE) | |
Creates an empty graphic buffer in the view <aView>. A graphic buffer manages a set of graphic objects and/or primitives. A buffer color and font index can be defined, in place of the default overrideColor or systemFont. When the drawmode is REPLACE the buffer is drawn with the right color and background drawing is used for restoring it at Erase() time. When the drawmode is XOR the buffer is drawn or erase with an optimal color depending of the background color but some side effects can appears depending of background drawing pixels values. | |
void | Destroy () |
Deletes the graphic buffer <me>. | |
~Graphic2d_Buffer () | |
void | Add (const Handle< Graphic2d_GraphicObject > &anObject) |
Adds the graphic object <anObject> in the graphic buffer <me>. | |
void | Add (const Handle< Graphic2d_Primitive > &aPrimitive) |
Adds the primitive <aPrimitive> in the graphic buffer <me>. | |
void | Remove (const Handle< Graphic2d_GraphicObject > &anObject) |
Removes the object <anObject> from the graphic buffer <me>. | |
void | Remove (const Handle< Graphic2d_Primitive > &aPrimitive) |
Removes the primitive <aPrimitive> from the graphic buffer <me>. | |
void | Clear () |
Clears the graphic buffer <me>. Removes all the primitives from the graphic buffer <me>. | |
void | SetAttrib (const Standard_Integer aWidthIndex, const Standard_Integer aColorIndex, const Standard_Integer aFontIndex, const Aspect_TypeOfDrawMode aDrawMode) |
Updates the default buffer color with a new color index defines in the user ColorMap. Update the default buffer font with a new font index defines in the user FontMap. Update the default buffer drawmode with REPLACE or XOR . You can specify the width index | |
void | SetPivot (const Quantity_Length aPivotX, const Quantity_Length aPivotY) |
Updates the buffer pivot position. <br> | |
void | SetPivot () |
Updates the buffer pivot position with the actual position. | |
void | Move (const Quantity_Length aDeltaX, const Quantity_Length aDeltaY) |
Moves the graphic buffer <me> at the specified position. The new position of the buffer is : (<aPivotX> + <aDeltaX>, <aPivotY> + <aDeltaY>) | |
void | Rotate (const Quantity_PlaneAngle anAngle) |
Rotates the graphic buffer <me> with the specified absolute counter clockwise angle from the pivot X axis. | |
void | Scale (const Quantity_Factor aFactor) |
Scales the graphic buffer <me> with the specified absolute scale factor from the pivot point. | |
Handle_Graphic2d_View | View () const |
Returns the view which manages the graphic buffer <me>. | |
Standard_Boolean | IsEmpty () const |
Returns Standard_True if the graphic buffer <me> is empty, Standard_False if not. | |
Standard_Boolean | IsIn (const Handle< Graphic2d_Primitive > &aPrimitive) const |
Returns Standard_True if the primitive <aPrimitive> is in the graphic buffer <me>, Standard_False if not. | |
Standard_Boolean | IsIn (const Handle< Graphic2d_GraphicObject > &anObject) const |
Returns Standard_True if the graphic object <anObject> is in the graphic buffer <me>, Standard_False if not. | |
void | Post () |
Post the graphic buffer in the current View driver <br> and display it. | |
void | Post (const Handle< Aspect_WindowDriver > &aDriver, const Handle< Graphic2d_ViewMapping > &aViewMapping, const Standard_Real aXPosition, const Standard_Real aYPosition, const Standard_Real aScale) |
Post the graphic buffer in a View driver and display it. | |
void | UnPost () |
Unpost the graphic buffer from the view and erase it. | |
Standard_Boolean | IsPosted () const |
Returns Standard_True if the graphic buffer <me> is posted in the view, Standard_False if not. | |
Quantity_PlaneAngle | Angle () const |
Returns the value of the rotation angle of the graphic buffer <me>. | |
Quantity_Factor | Scale () const |
Returns the value of the scale factor of the graphic buffer <me>. | |
Quantity_Length | Xpivot () const |
Returns the actual value of the X pivot point. of the graphic buffer <me>. | |
Quantity_Length | Ypivot () const |
Returns the actual value of the Y pivot point. of the graphic buffer <me>. |
Graphic2d_Buffer::Graphic2d_Buffer | ( | const Handle< Graphic2d_View > & | aView, |
const Quantity_Length | aPivotX, | ||
const Quantity_Length | aPivotY, | ||
const Standard_Integer | aWidthIndex = 0 , |
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const Standard_Integer | aColorIndex = 0 , |
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const Standard_Integer | aFontIndex = 0 , |
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const Aspect_TypeOfDrawMode | aDrawMode = Aspect_TODM_REPLACE |
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) |
Graphic2d_Buffer::~Graphic2d_Buffer | ( | ) | [inline] |
void Graphic2d_Buffer::Add | ( | const Handle< Graphic2d_GraphicObject > & | anObject | ) |
void Graphic2d_Buffer::Add | ( | const Handle< Graphic2d_Primitive > & | aPrimitive | ) |
Quantity_PlaneAngle Graphic2d_Buffer::Angle | ( | ) | const |
Standard_Boolean Graphic2d_Buffer::IsEmpty | ( | ) | const |
Standard_Boolean Graphic2d_Buffer::IsIn | ( | const Handle< Graphic2d_Primitive > & | aPrimitive | ) | const |
Standard_Boolean Graphic2d_Buffer::IsIn | ( | const Handle< Graphic2d_GraphicObject > & | anObject | ) | const |
Standard_Boolean Graphic2d_Buffer::IsPosted | ( | ) | const |
void Graphic2d_Buffer::Move | ( | const Quantity_Length | aDeltaX, |
const Quantity_Length | aDeltaY | ||
) |
void Graphic2d_Buffer::Post | ( | const Handle< Aspect_WindowDriver > & | aDriver, |
const Handle< Graphic2d_ViewMapping > & | aViewMapping, | ||
const Standard_Real | aXPosition, | ||
const Standard_Real | aYPosition, | ||
const Standard_Real | aScale | ||
) |
void Graphic2d_Buffer::Remove | ( | const Handle< Graphic2d_GraphicObject > & | anObject | ) |
void Graphic2d_Buffer::Remove | ( | const Handle< Graphic2d_Primitive > & | aPrimitive | ) |
void Graphic2d_Buffer::Rotate | ( | const Quantity_PlaneAngle | anAngle | ) |
void Graphic2d_Buffer::Scale | ( | const Quantity_Factor | aFactor | ) |
Quantity_Factor Graphic2d_Buffer::Scale | ( | ) | const |
void Graphic2d_Buffer::SetAttrib | ( | const Standard_Integer | aWidthIndex, |
const Standard_Integer | aColorIndex, | ||
const Standard_Integer | aFontIndex, | ||
const Aspect_TypeOfDrawMode | aDrawMode | ||
) |
- -1 draw all lines with the largest width <br> defined in the buffer <me> <br> - 0 draw all lines with the default width <br> defined in the driver (1 pixel) <br> - draw all lines with the specified width <br> <aWidthIndex> <br> You can specify the color index <br> - -1 draw all primitives with the color of <br> the first primitive color defined in the buffer. <br> - 0 draw all primitives with the default color. <br> You can specify the font index <br> - -1 draw all text primitives with the font of <br> the first primitive text defined in the buffer. <br> - 0 draw all text primitives with the default font. <br>
Warning: The buffer is redisplayed again if it was posted.
void Graphic2d_Buffer::SetPivot | ( | const Quantity_Length | aPivotX, |
const Quantity_Length | aPivotY | ||
) |
Handle_Graphic2d_View Graphic2d_Buffer::View | ( | ) | const |
Quantity_Length Graphic2d_Buffer::Xpivot | ( | ) | const |
Quantity_Length Graphic2d_Buffer::Ypivot | ( | ) | const |