Panda3D
Public Member Functions
PNMPainter Class Reference

This class provides a number of convenient methods for painting drawings directly into a PNMImage. More...

#include "pnmPainter.h"

List of all members.

Public Member Functions

 PNMPainter (PNMImage &image, int xo=0, int yo=0)
 The constructor stores a pointer to the PNMImage you pass it, but it does not take ownership of the object; you are responsible for ensuring that the PNMImage does not destruct during the lifetime of the PNMPainter object.
void draw_line (double xa, double ya, double xb, double yb)
 Draws an antialiased line on the PNMImage, using the current pen.
void draw_point (double x, double y)
 Draws an antialiased point on the PNMImage, using the current pen.
void draw_rectangle (double xa, double ya, double xb, double yb)
 Draws a filled rectangule on the PNMImage, using the current pen for the outline, and the current fill brush for the interior.
PNMBrushget_fill () const
 Returns the current fill brush.
PNMBrushget_pen () const
 Returns the current pen.
void set_fill (PNMBrush *fill)
 Specifies a PNMBrush that will be used for filling in the interiors of objects.
void set_pen (PNMBrush *pen)
 Specifies a PNMBrush that will be used for drawing lines and edges.

Detailed Description

This class provides a number of convenient methods for painting drawings directly into a PNMImage.

It stores a pointer to the PNMImage you pass it, but it does not take ownership of the object; you are responsible for ensuring that the PNMImage does not destruct during the lifetime of the PNMPainter object.

Definition at line 33 of file pnmPainter.h.


Constructor & Destructor Documentation

PNMPainter::PNMPainter ( PNMImage image,
int  xo = 0,
int  yo = 0 
)

The constructor stores a pointer to the PNMImage you pass it, but it does not take ownership of the object; you are responsible for ensuring that the PNMImage does not destruct during the lifetime of the PNMPainter object.

The xo, yo coordinates specify an optional offset for fill coordinates. If you are painting with a pattern fill, these specify the virtual coordinates of the upper-left corner of the image, which can allow you to adjust the pattern to line up with nested images, if necessary.

Definition at line 35 of file pnmPainter.cxx.


Member Function Documentation

void PNMPainter::draw_line ( double  xa,
double  ya,
double  xb,
double  yb 
)

Draws an antialiased line on the PNMImage, using the current pen.

Definition at line 50 of file pnmPainter.cxx.

Referenced by draw_point(), and draw_rectangle().

void PNMPainter::draw_point ( double  x,
double  y 
) [inline]

Draws an antialiased point on the PNMImage, using the current pen.

Definition at line 85 of file pnmPainter.I.

References draw_line().

void PNMPainter::draw_rectangle ( double  xa,
double  ya,
double  xb,
double  yb 
)

Draws a filled rectangule on the PNMImage, using the current pen for the outline, and the current fill brush for the interior.

The two coordinates specify any two diagonally opposite corners.

Definition at line 158 of file pnmPainter.cxx.

References draw_line().

PNMBrush * PNMPainter::get_fill ( ) const [inline]

Returns the current fill brush.

See set_fill().

Definition at line 74 of file pnmPainter.I.

PNMBrush * PNMPainter::get_pen ( ) const [inline]

Returns the current pen.

See set_pen().

Definition at line 47 of file pnmPainter.I.

void PNMPainter::set_fill ( PNMBrush fill) [inline]

Specifies a PNMBrush that will be used for filling in the interiors of objects.

If the brush is a bitmap brush, its image will be tiled throughout the space.

Unlike the PNMImage passed to the constructor, the PNMPainter will take ownership of the fill brush. It is not necessary to keep a separate pointer to it.

Definition at line 64 of file pnmPainter.I.

void PNMPainter::set_pen ( PNMBrush pen) [inline]

Specifies a PNMBrush that will be used for drawing lines and edges.

If the brush is a bitmap brush, its image will be smeared pixelwise along the line.

Unlike the PNMImage passed to the constructor, the PNMPainter will take ownership of the pen. It is not necessary to keep a separate pointer to it.

Definition at line 37 of file pnmPainter.I.


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