be.tarsos.dsp.ui.layers

Class LayerUtilities

java.lang.Object

be.tarsos.dsp.ui.layers.LayerUtilities

public class LayerUtilities
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static java.awt.geom.Rectangle2D	drawString(java.awt.Graphics2D graphics, java.lang.String text, double x, double y, boolean centerHorizontal, boolean centerVertical, java.awt.Color backgroundColor)
static java.awt.geom.Rectangle2D	drawString(java.awt.Graphics2D graphics, java.lang.String text, double x, double y, boolean centerHorizontal, boolean centerVertical, java.awt.Color backgroundColor, java.awt.Color textColor)
static float	pixelsToUnits(java.awt.Graphics2D g, int pixels, boolean horizontal) Transforms a number of pixels into a corresponding time or frequency span.
static java.awt.geom.Point2D	pixelsToUnits(java.awt.Graphics2D g, int x, int y) Transforms pixels to time and frequency.
static float	unitsToPixels(java.awt.Graphics2D g, float units, boolean horizontal)

Methods inherited from class java.lang.Object

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

Method Detail

pixelsToUnits

public static java.awt.geom.Point2D pixelsToUnits(java.awt.Graphics2D g,
                                                  int x,
                                                  int y)

Transforms pixels to time and frequency.

Parameters:

g - The current graphics, with a meaningful transform applied to it.

x - The x coordinate, in pixels.

y - The y coordinate, in pixels.

Returns:

A point with time (in milliseconds) as x coordinate, and frequency (in cents) as y coordinate.

pixelsToUnits

public static float pixelsToUnits(java.awt.Graphics2D g,
                                  int pixels,
                                  boolean horizontal)

Transforms a number of pixels into a corresponding time or frequency span. E.g. 10 horizontal pixels could translate to 320 milliseconds. 10 vertical pixels could translate to 32cents.

Parameters:

g - The current graphics, with a meaningful transform applied to it.

pixels - The number of pixels

horizontal - Is it the horizontal or vertical axis?

Returns:

A number of cents or milliseconds.

unitsToPixels

public static float unitsToPixels(java.awt.Graphics2D g,
                                  float units,
                                  boolean horizontal)

drawString

public static java.awt.geom.Rectangle2D drawString(java.awt.Graphics2D graphics,
                                                   java.lang.String text,
                                                   double x,
                                                   double y,
                                                   boolean centerHorizontal,
                                                   boolean centerVertical,
                                                   java.awt.Color backgroundColor)

drawString

public static java.awt.geom.Rectangle2D drawString(java.awt.Graphics2D graphics,
                                                   java.lang.String text,
                                                   double x,
                                                   double y,
                                                   boolean centerHorizontal,
                                                   boolean centerVertical,
                                                   java.awt.Color backgroundColor,
                                                   java.awt.Color textColor)