edu.ohiou.cs456_badabing.sceneapi.exec
Class ViewPanel

java.lang.Object
  GLJPanel
      edu.ohiou.cs456_badabing.sceneapi.exec.ViewPanel

All Implemented Interfaces:

java.awt.event.KeyListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.event.MouseWheelListener, java.lang.Runnable, java.util.EventListener

public class ViewPanel
extends GLJPanel
implements java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.lang.Runnable, java.awt.event.KeyListener, java.awt.event.MouseWheelListener

OpenGL accelerated panel that renders 3D visualization data.

Description: extends GLJPanel and renders Map. Responds to user interaction.

Copyright: Copyright (c) 2008, Lev A Neiman

Company: Ohio University EECS

Nested Class Summary

private class

ViewPanel.zoomerInner inner class to handle zooming in stuff.

Field Summary

(package private) java.util.HashMap<java.awt.Color,java.lang.String>	color2name mapping of RGB color to county name.
GLContext	context GLContext of this panel.
private int	cur_m_button mouse button that was pressed.
private boolean	enable_transperency if this is false then transperency is disabled.
private boolean	enable_transperency_p previouis value for enable_transperency.
int	frames frame counter.
private LightNode	light handle to light source.
private MainUIPanel	main_panel handle to MainUIPanel
Map	map handle to Map
private static double	max_radius the radius of the Sphere representing the county with largest deer harvest.
(package private) java.lang.Thread	measure_fps handle to thread that measures and prints out FPS info.
private static double	min_radius the radius of the Sphere representing the county with smallest deer harvest.
private int	mX x position of last mouse move.
private int	mY y position of the last mouse move.
(package private) java.util.HashMap<java.lang.String,java.awt.Color>	name2color mapping of county name to RGB color
private int	num_inits how many times has this panel been re-initialized.
java.lang.Thread	render_thread handle to thread that calls display() continuously.
boolean	should_display
private boolean	should_update if this is switched to true, ViewPanel will attempt to read DataBaseModel from MainUIPanel and update Spheres and PieCharts accordingly.
private static double	xdisp x position of camera.
private static double	xtilt xtilt of the camera.
private static double	ydisp y position of camera.
private static double	ytilt ytilt of the camera.
private static double	zdisp z position of camera (how close is it to the map?).
private ViewPanel.zoomerInner	zooming handle to the zoomerInner object.

Constructor Summary

ViewPanel(MainUIPanel main_panel)
default constructor.

Method Summary

private void	addSM(java.lang.String name, java.awt.Color color) add county name to RGB color mapping.
void	changeTransperency(int transperency) set a new Transperency.
void	display(GLAutoDrawable gLDrawable) render ViewPanel.
void	displayChanged(GLAutoDrawable gLDrawable, boolean modeChanged, boolean deviceChanged)
private java.awt.Color	getColor(int x, int y) return the color at x, y position on the screen.
Map	getMap() return handle to Map object.
void	init(GLAutoDrawable gLDrawable) Set up our scene.
double	interpolate(double y1, double y2, double t1, double t2, long ti) Interpolation function between (t1, y1) and (t2, y2).
private void	jbInit() adds some event listeners.
void	keyPressed(java.awt.event.KeyEvent k)
void	keyReleased(java.awt.event.KeyEvent k)
void	keyTyped(java.awt.event.KeyEvent k)
void	mouseClicked(java.awt.event.MouseEvent e) on mouse Clicked event.
void	mouseDragged(java.awt.event.MouseEvent e) on mouse dragged.
void	mouseEntered(java.awt.event.MouseEvent e)
void	mouseExited(java.awt.event.MouseEvent e)
void	mouseMoved(java.awt.event.MouseEvent e) on mouse moved.
void	mousePressed(java.awt.event.MouseEvent e) on mouse pressed.
void	mouseReleased(java.awt.event.MouseEvent e)
void	mouseWheelMoved(java.awt.event.MouseWheelEvent e) handle mouse wheel events.
void	reshape(GLAutoDrawable gLDrawable, int x, int y, int width, int height) calls when ViewPanel is being reshaped.
void	run() run method for rendering thread.
private java.lang.String	selectCounty() method to select county based on the color that is at mX, mY position.
void	setTransperency(boolean transp) set whether transperency should be used or not.
boolean	takeScreenshot(java.io.File file, java.lang.String format) saves the screen shot of the color buffer into file in some format.
void	triggerUpdate() triggers ViewPanel to update sizes of Spheres and PieCharts
private void	update() Updates all objects in map to reflect information from DataBaseModel and current year.
void	updateDeerTuple(DeerTuple info) take a deer Tuple
void	zoomDefault() zoom in to default view.
void	zoomIn() zoom in a little bit.
void	zoomIn(java.lang.String county_name) causes ViewPanel to zoom in on selected county.
void	zoomOut() zoom out a little bit.

Methods inherited from class java.lang.Object

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

Field Detail

zooming

private ViewPanel.zoomerInner zooming

handle to the zoomerInner object. When it is not null the display method calls its step() method and checks whether it is done or not.
If it is null then display method doesnt call it.

measure_fps

java.lang.Thread measure_fps

handle to thread that measures and prints out FPS info.

frames

public int frames

frame counter.

main_panel

private MainUIPanel main_panel

handle to MainUIPanel

map

public Map map

handle to Map

light

private LightNode light

handle to light source.

mX

private int mX

x position of last mouse move.

mY

private int mY

y position of the last mouse move.

xdisp

private static double xdisp

x position of camera.

ydisp

private static double ydisp

y position of camera.

zdisp

private static double zdisp

z position of camera (how close is it to the map?).

xtilt

private static double xtilt

xtilt of the camera.

ytilt

private static double ytilt

ytilt of the camera.

cur_m_button

private int cur_m_button

mouse button that was pressed.

render_thread

public java.lang.Thread render_thread

handle to thread that calls display() continuously.

context

public GLContext context

GLContext of this panel.

num_inits

private int num_inits

how many times has this panel been re-initialized.

name2color

java.util.HashMap<java.lang.String,java.awt.Color> name2color

mapping of county name to RGB color

color2name

java.util.HashMap<java.awt.Color,java.lang.String> color2name

mapping of RGB color to county name.

should_update

private boolean should_update

if this is switched to true, ViewPanel will attempt to read DataBaseModel from MainUIPanel and update Spheres and PieCharts accordingly.

enable_transperency_p

private boolean enable_transperency_p

previouis value for enable_transperency.

enable_transperency

private boolean enable_transperency

if this is false then transperency is disabled. otherwise it is enabled.

min_radius

private static final double min_radius

the radius of the Sphere representing the county with smallest deer harvest.

See Also:

Constant Field Values

max_radius

private static final double max_radius

the radius of the Sphere representing the county with largest deer harvest.

See Also:

Constant Field Values

should_display

public boolean should_display

Constructor Detail

ViewPanel

public ViewPanel(MainUIPanel main_panel)

default constructor.

Parameters:

main_panel - MainUIPanel

Method Detail

interpolate

public double interpolate(double y1,
                          double y2,
                          double t1,
                          double t2,
                          long ti)

Interpolation function between (t1, y1) and (t2, y2). takes those input plus ti and reterns yi.

Parameters:

y1 - double

y2 - double

t1 - double

t2 - double

ti - long

Returns:

double

setTransperency

public void setTransperency(boolean transp)

set whether transperency should be used or not.

Parameters:

transp - boolean

addSM

private void addSM(java.lang.String name,
                   java.awt.Color color)

add county name to RGB color mapping.

Parameters:

name - String

color - Color

triggerUpdate

public void triggerUpdate()

triggers ViewPanel to update sizes of Spheres and PieCharts

updateDeerTuple

public void updateDeerTuple(DeerTuple info)

take a deer Tuple

update

private void update()

Updates all objects in map to reflect information from DataBaseModel and current year.

getMap

public Map getMap()

return handle to Map object.

Returns:

Map

zoomIn

public void zoomIn()

zoom in a little bit.

zoomOut

public void zoomOut()

zoom out a little bit.

display

public void display(GLAutoDrawable gLDrawable)

render ViewPanel.

Parameters:

gLDrawable - GLAutoDrawable

displayChanged

public void displayChanged(GLAutoDrawable gLDrawable,
                           boolean modeChanged,
                           boolean deviceChanged)

init

public void init(GLAutoDrawable gLDrawable)

Set up our scene.

Parameters:

gLDrawable - GLAutoDrawable

reshape

public void reshape(GLAutoDrawable gLDrawable,
                    int x,
                    int y,
                    int width,
                    int height)

calls when ViewPanel is being reshaped.

Parameters:

gLDrawable - GLAutoDrawable

x - int

y - int

width - int

height - int

changeTransperency

public void changeTransperency(int transperency)

set a new Transperency.

Parameters:

transperency - int

jbInit

private void jbInit()
             throws java.lang.Exception

adds some event listeners.

Throws:

java.lang.Exception

mouseExited

public void mouseExited(java.awt.event.MouseEvent e)

Specified by:

mouseExited in interface java.awt.event.MouseListener

mouseEntered

public void mouseEntered(java.awt.event.MouseEvent e)

Specified by:

mouseEntered in interface java.awt.event.MouseListener

mouseReleased

public void mouseReleased(java.awt.event.MouseEvent e)

Specified by:

mouseReleased in interface java.awt.event.MouseListener

mousePressed

public void mousePressed(java.awt.event.MouseEvent e)

on mouse pressed.

Specified by:

mousePressed in interface java.awt.event.MouseListener

Parameters:

e - MouseEvent

mouseClicked

public void mouseClicked(java.awt.event.MouseEvent e)

on mouse Clicked event. Does the zoom in, zoom out stuff.

Specified by:

mouseClicked in interface java.awt.event.MouseListener

Parameters:

e - MouseEvent

zoomIn

public void zoomIn(java.lang.String county_name)

causes ViewPanel to zoom in on selected county.

Parameters:

county_name - String

zoomDefault

public void zoomDefault()

zoom in to default view.

getColor

private java.awt.Color getColor(int x,
                                int y)

return the color at x, y position on the screen. this is used for selection.

Parameters:

x - int

y - int

Returns:

Color

mouseMoved

public void mouseMoved(java.awt.event.MouseEvent e)

on mouse moved. update mX and mY, and do selectCounty().

Specified by:

mouseMoved in interface java.awt.event.MouseMotionListener

Parameters:

e - MouseEvent

selectCounty

private java.lang.String selectCounty()

method to select county based on the color that is at mX, mY position. Get that color and then return its mapping to county name.

Returns:

String

mouseDragged

public void mouseDragged(java.awt.event.MouseEvent e)

on mouse dragged. moves the map on left mouse button, and rotates it on right mouse button.

Specified by:

mouseDragged in interface java.awt.event.MouseMotionListener

Parameters:

e - MouseEvent

mouseWheelMoved

public void mouseWheelMoved(java.awt.event.MouseWheelEvent e)

handle mouse wheel events.

Specified by:

mouseWheelMoved in interface java.awt.event.MouseWheelListener

Parameters:

e - MouseWheelEvent

keyReleased

public void keyReleased(java.awt.event.KeyEvent k)

Specified by:

keyReleased in interface java.awt.event.KeyListener

keyPressed

public void keyPressed(java.awt.event.KeyEvent k)

Specified by:

keyPressed in interface java.awt.event.KeyListener

keyTyped

public void keyTyped(java.awt.event.KeyEvent k)

Specified by:

keyTyped in interface java.awt.event.KeyListener

run

public void run()

run method for rendering thread.

Specified by:

run in interface java.lang.Runnable

takeScreenshot

public boolean takeScreenshot(java.io.File file,
                              java.lang.String format)

saves the screen shot of the color buffer into file in some format.

Parameters:

file - File

format - String

Returns:

boolean