gov.nasa.worldwind.render

Class FrameFactory

java.lang.Object

gov.nasa.worldwind.render.FrameFactory

public class FrameFactory
extends Object

Static class for drawing 2D frames.

All shapes are drawn inside a bounding rectangle whose lower left corner is at the origin. Shapes with a leader use an offset point that indicate where the leader triangle should point at - it usually has a negative y since the leader connects at the bottom of the frame (at y = 0).

See Also:

AbstractAnnotation

Constructor Summary

Constructors

Constructor and Description
FrameFactory()

Method Summary

Modifier and Type	Method and Description
static DoubleBuffer	createShapeBuffer(String shape, double width, double height, int cornerRadius, DoubleBuffer buffer) Create a vertex buffer for a shape with the specified width, height and corner radius.
static DoubleBuffer	createShapeWithLeaderBuffer(String shape, double width, double height, Point leaderOffset, double leaderGapWidth, int cornerRadius, DoubleBuffer buffer) Create a vertex buffer for a shape with the specified width, height and corner radius.
static void	drawBuffer(DrawContext dc, int mode, DoubleBuffer verts)
static void	drawBuffer(DrawContext dc, int mode, int count, DoubleBuffer verts) Draw a vertex buffer in a given gl mode.
static void	drawBuffer(DrawContext dc, int mode, int count, DoubleBuffer verts, DoubleBuffer coords) Draw a vertex buffer with texture coordinates in a given gl mode.
static void	drawShape(DrawContext dc, String shape, double width, double height, int glMode, int cornerRadius) Draw a shape with the specified width and height, gl mode and corner radius.
static void	drawShapeWithLeader(DrawContext dc, String shape, double width, double height, Point leaderOffset, double leaderGapWidth, int glMode, int cornerRadius) Draw a shape with the specified width and height, gl mode and corner radius.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FrameFactory

public FrameFactory()

Method Detail

createShapeBuffer

public static DoubleBuffer createShapeBuffer(String shape,
                                             double width,
                                             double height,
                                             int cornerRadius,
                                             DoubleBuffer buffer)

Create a vertex buffer for a shape with the specified width, height and corner radius. Corner radius only apply to SHAPE_RECTANGLE - set to zero for square corners.

Parameters:

shape - the shape - can be one of SHAPE_RECTANGLE or SHAPE_ELLIPSE.

width - the width of the overall shape.

height - the height of the shape.

cornerRadius - the rounded corners radius. Set to zero for square corners.

buffer - the buffer to store shape vertices, or null to allocate a new buffer.

Returns:

the vertex buffer.

createShapeWithLeaderBuffer

public static DoubleBuffer createShapeWithLeaderBuffer(String shape,
                                                       double width,
                                                       double height,
                                                       Point leaderOffset,
                                                       double leaderGapWidth,
                                                       int cornerRadius,
                                                       DoubleBuffer buffer)

Create a vertex buffer for a shape with the specified width, height and corner radius. The shape includes a leader triangle pointing to a specified point. Corner radius only apply to SHAPE_RECTANGLE - set to zero for square corners.

Parameters:

shape - the shape - can be one of SHAPE_RECTANGLE or SHAPE_ELLIPSE.

width - the width of the overall shape.

height - the height of the shape excluding the leader.

leaderOffset - the coordinates of the point to which the leader leads.

leaderGapWidth - the starting width of the leader shape.

cornerRadius - the rounded corners radius. Set to zero for square corners.

buffer - the buffer to store shape vertices, or null to allocate a new buffer.

Returns:

the vertex buffer.

drawBuffer

public static void drawBuffer(DrawContext dc,
                              int mode,
                              DoubleBuffer verts)

drawBuffer

public static void drawBuffer(DrawContext dc,
                              int mode,
                              int count,
                              DoubleBuffer verts)

Draw a vertex buffer in a given gl mode. Vertex buffers coming from the createShapeBuffer() methods support both GL.GL_TRIANGLE_FAN and GL.LINE_STRIP.

Parameters:

dc - the current DrawContext.

mode - the desired drawing GL mode.

count - the number of vertices to draw.

verts - the vertex buffer to draw.

drawBuffer

public static void drawBuffer(DrawContext dc,
                              int mode,
                              int count,
                              DoubleBuffer verts,
                              DoubleBuffer coords)

Draw a vertex buffer with texture coordinates in a given gl mode. Vertex buffers coming from the createShapeBuffer() methods support both GL.GL_TRIANGLE_FAN and GL.LINE_STRIP.

Parameters:

dc - the current DrawContext.

mode - the desired drawing GL mode.

count - the number of vertices to draw.

verts - the vertex buffer to draw.

coords - the buffer containing the shape texture coordinates.

drawShape

public static void drawShape(DrawContext dc,
                             String shape,
                             double width,
                             double height,
                             int glMode,
                             int cornerRadius)

Draw a shape with the specified width and height, gl mode and corner radius. GL mode came be one of GL.GL_TRIANGLE_FAN and GL.LINE_STRIP. Corner radius only apply to SHAPE_RECTANGLE - set to zero for square corners.

Parameters:

dc - the current DrawContext.

shape - the shape - can be one of SHAPE_RECTANGLE or SHAPE_ELLIPSE.

width - the width of the overall shape.

height - the height of the shape.

glMode - the GL mode - can be one of GL.GL_TRIANGLE_FAN and GL.LINE_STRIP.

cornerRadius - the rounded corners radius. Set to zero for square corners.

drawShapeWithLeader

public static void drawShapeWithLeader(DrawContext dc,
                                       String shape,
                                       double width,
                                       double height,
                                       Point leaderOffset,
                                       double leaderGapWidth,
                                       int glMode,
                                       int cornerRadius)

Draw a shape with the specified width and height, gl mode and corner radius. The shape includes a leader triangle pointing to a specified point. GL mode came be one of GL.GL_TRIANGLE_FAN and GL.LINE_STRIP. Corner radius only apply to SHAPE_RECTANGLE - set to zero for square corners.

Parameters:

dc - the current DrawContext.

shape - the shape - can be one of SHAPE_RECTANGLE or SHAPE_ELLIPSE.

width - the width of the overall shape.

height - the height of the shape excluding the leader.

leaderOffset - the coordinates of the point to which the leader leads.

leaderGapWidth - the starting width of the leader shape.

glMode - the GL mode - can be one of GL.GL_TRIANGLE_FAN and GL.LINE_STRIP.

cornerRadius - the rounded corners radius. Set to zero for square corners.