From 880653d31a8f1ff8384fdbc75b84934bceecfdb8 Mon Sep 17 00:00:00 2001 From: Sven Gothel Date: Sat, 18 Nov 2000 06:43:49 +0000 Subject: Initial revision --- demos/MiscDemos/DrawColoredPrimitives2.java | 302 ++++++++++++++++++++++++++++ 1 file changed, 302 insertions(+) create mode 100644 demos/MiscDemos/DrawColoredPrimitives2.java (limited to 'demos/MiscDemos/DrawColoredPrimitives2.java') diff --git a/demos/MiscDemos/DrawColoredPrimitives2.java b/demos/MiscDemos/DrawColoredPrimitives2.java new file mode 100644 index 0000000..fad8668 --- /dev/null +++ b/demos/MiscDemos/DrawColoredPrimitives2.java @@ -0,0 +1,302 @@ +/** + * @(#) DrawColoredPrimitives2.java + * @(#) author: Joe Zimmerman (converted to Java by Sven Goethel) + */ + +/* This program is free software under the license of LGPL */ + +import java.applet.*; +import java.awt.*; +import java.awt.event.*; +import java.lang.*; +import java.util.*; +import java.io.*; +import java.util.*; +import gl4java.GLContext; +import gl4java.awt.GLAnimCanvas; +import gl4java.applet.SimpleGLAnimApplet1; + +public class DrawColoredPrimitives2 extends SimpleGLAnimApplet1 +{ + + public void init() + { + super.init(); + Dimension d = getSize(); + canvas = new gldemo(d.width, d.height); + add("Center", canvas); + } + + public static void main( String args[] ) { + DrawColoredPrimitives2 applet = + new DrawColoredPrimitives2(); + + Frame f = new Frame("DrawColoredPrimitives2"); + + f.addWindowListener( new WindowAdapter() + { + public void windowClosed(WindowEvent e) + { + System.exit(0); + } + public void windowClosing(WindowEvent e) + { + windowClosed(e); + } + } + ); + + f.setLayout(new BorderLayout()); + f.add("Center", applet); + applet.setSize(500,300); + applet.init(); + applet.start(); + Dimension ps = applet.getPreferredSize(); + f.setBounds(-100,-100,99,99); + f.setVisible(true); + f.setVisible(false); + Insets i = f.getInsets(); + f.setBounds(0,0, + ps.width+i.left+i.right, + ps.height+i.top+i.bottom); + f.setVisible(true); + } + + private class gldemo extends GLAnimCanvas + implements MouseListener, ActionListener + { + private PopupMenu menu = null; + private boolean menu_showing = false; + private boolean save_suspended = false; + private final String VIEW_FRONT = "View Front"; + private final String VIEW_TOP = "View Top"; + private final String VIEW_BOTTOM = "View Bottom"; + + final float M_PI = 3.14159265f; + final float M_PI_2 = 1.57079632f; + float rotate; + float rotationStep = 1; + int view = 0; /* 0 = front, 1 = top, 2 = bottom */ + + float LightAmbient[] = { 0.75f, 0.75f, 0.75f, 1.5f}; + float LightDiffuse[] = { 1.0f, 1.0f, 1.0f, 0.9f}; + float LightSpecular[] = { 0.8f, 0.8f, 0.8f, 1.0f}; + + public gldemo(int w, int h) + { + super(w, h); + GLContext.gljNativeDebug = false; + GLContext.gljClassDebug = false; + setAnimateFps(30.0); + } + + public void preInit() + { + doubleBuffer = true; + stereoView = false; + } + + public void init() + { + reshape(getSize().width, getSize().height); + + gl.glEnable(GL_LIGHT0); + gl.glLightfv(GL_LIGHT0, GL_AMBIENT, LightAmbient); + gl.glLightfv(GL_LIGHT0, GL_DIFFUSE, LightDiffuse); + gl.glLightfv(GL_LIGHT0, GL_SPECULAR, LightSpecular); + + glj.gljCheckGL(); + + menu = new PopupMenu("Options"); + menu.add(VIEW_FRONT); + menu.add(VIEW_TOP); + menu.add(VIEW_BOTTOM); + menu.addActionListener(this); + add(menu); + + addMouseListener(this); + } + + public void doCleanup() + { + removeMouseListener(this); + menu.removeActionListener(this); + } + + public void reshape(int width, int height) + { + gl.glMatrixMode(GL_PROJECTION); + gl.glLoadIdentity(); + glu.gluPerspective(45, (float)width/(float)height, 1, 700); + gl.glMatrixMode(GL_MODELVIEW); + gl.glLoadIdentity(); + gl.glViewport(0,0,width,height); + } + + public void display() + { + if (glj.gljMakeCurrent() == false) return; + + gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + gl.glMatrixMode(GL_MODELVIEW); + gl.glLoadIdentity(); + + gl.glTranslatef(0, 0, -5); + + if(view==1) + { + gl.glRotatef(90f, 1, 0, 0); + } else if(view==2) + { + gl.glRotatef(-90f, 1, 0, 0); + } + + gl.glColor4f(1, 1, 1, 1); + + rotate+=rotationStep; + if(rotate>=180.0f || rotate<=0.0f) + rotationStep*=-1.0f; + + gl.glRotatef(rotate, 0, 1, 0); + + + gl.glBegin(GL_POLYGON); + gl.glNormal3f( 1, 0, 0); + + // top vertex + gl.glColor4f(1, 0, 0, 1); gl.glVertex3f( 0, 1, 0); + // bottom left vertex + gl.glColor4f(0, 1, 0, 1); gl.glVertex3f(-1, -1, 1); + // bottom right vertex + gl.glColor4f(0, 0, 1, 1); gl.glVertex3f( 1, -1, 1); + gl.glEnd(); + + gl.glBegin(GL_POLYGON); + gl.glNormal3f( 1, 0, 0); + + // top vertex + gl.glColor4f(1, 0, 0, 1); gl.glVertex3f( 0, 1, 0); + // bottom left vertex + gl.glColor4f(0, 1, 0, 1); gl.glVertex3f( 1, -1, -1); + // bottom right vertex + gl.glColor4f(0, 0, 1, 1); gl.glVertex3f( 1, -1, 1); + gl.glEnd(); + + gl.glBegin(GL_POLYGON); + gl.glNormal3f( 1, 0, 0); + + // top vertex + gl.glColor4f(1, 0, 0, 1); gl.glVertex3f( 0, 1, 0); + // bottom left vertex + gl.glColor4f(0, 1, 0, 1); gl.glVertex3f( 1, -1, -1); + // bottom right vertex + gl.glColor4f(0, 0, 1, 1); gl.glVertex3f(-1, -1, -1); + gl.glEnd(); + + gl.glBegin(GL_POLYGON); + gl.glNormal3f( 1, 0, 0); + + // top vertex + gl.glColor4f(1, 0, 0, 1); gl.glVertex3f( 0, 1, 0); + // bottom left vertex + gl.glColor4f(0, 1, 0, 1); gl.glVertex3f(-1, -1, 1); + // bottom right vertex + gl.glColor4f(0, 0, 1, 1); gl.glVertex3f(-1, -1, -1); + gl.glEnd(); + + + // bottom square polygon + gl.glBegin(GL_POLYGON); + gl.glNormal3f( 1, 0, 0); + + gl.glColor4f(0, 0, 1, 1); gl.glVertex3f( 1, -1, 1); + gl.glColor4f(0, 1, 0, 1); gl.glVertex3f(-1, -1, 1); + gl.glColor4f(0, 0, 1, 1); gl.glVertex3f(-1, -1, -1); + gl.glColor4f(0, 1, 0, 1); gl.glVertex3f( 1, -1, -1); + gl.glEnd(); + + + glj.gljSwap(); + glj.gljCheckGL(); + glj.gljFree(); + } + + // Methods required for the implementation of MouseListener + public void mouseEntered(MouseEvent evt) + { + } + + public void mouseExited(MouseEvent evt) + { + } + + public void mousePressed(MouseEvent evt) + { + if (!menu_showing) + { + if ((evt.getModifiers() & evt.BUTTON3_MASK) != 0) + { + menu_showing = true; + save_suspended = isSuspended(); + if (!save_suspended) + { + setSuspended(true); + repaint(100); + try + { + Thread.currentThread().sleep(200); + } + catch (Exception e) + { } + } + menu.show(this,evt.getX(),evt.getY()); + } + else + { + // Must be left button. + if (isSuspended()) repaint(); + } + } + else + { + menu_showing = false; + setSuspended(save_suspended); + } + } + + public void mouseReleased(MouseEvent evt) + { + } + + public void mouseClicked(MouseEvent evt) + { + } + + // Method required for the implementation of ActionListener + public void actionPerformed(ActionEvent evt) + { + String c = evt.getActionCommand(); + if (c.equals(VIEW_FRONT)) + { + view=0; + } + else if (c.equals(VIEW_TOP)) + { + view=1; + } + else if (c.equals(VIEW_BOTTOM)) + { + view=2; + } + if (menu_showing) + { + menu_showing = false; + setSuspended(save_suspended); + } + } + + + + } +} -- cgit v1.2.3