// start or end interaction
void myMouseCB(int button, int state, int x, int y)
{
Button = button ;
if( Button == GLUT_LEFT_BUTTON && state == GLUT_DOWN )
{
HVect arcball_coords;
arcball_coords.x = 2.0*(float)x/(float)Width-1.0;
arcball_coords.y = -2.0*(float)y/(float)Height+1.0;
Ball_Mouse(Arcball, arcball_coords) ;
Ball_Update(Arcball);
Ball_BeginDrag(Arcball);
}
if( Button == GLUT_LEFT_BUTTON && state == GLUT_UP )
{
Ball_EndDrag(Arcball);
Button = -1 ;
}
if( Button == GLUT_RIGHT_BUTTON && state == GLUT_DOWN )
{
PrevY = y ;
}
// Tell the system to redraw the window
glutPostRedisplay() ;
}
void CMassView::Draw(BRect updateRect) // draw the view
{
if (!inGLMode)
{
//DrawBitmap(theBlitMap, updateRect, updateRect); // blit the bits
return;
} // end of simple case
else
{
LockGL(); // lock in preparation for drawing
GLfloat mNow[16]; // local matrix for ball routines
Ball_Update(&ball); // update the data for the ball
Ball_Value(&ball, mNow); // retrieve the ball's position as a matrix
glMatrixMode(GL_MODELVIEW); // make sure that we are set to the model matrix
glClearColor(0.0, 0.0, 0.0, 1.0); // and set the "clear" colour to black
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear the window to black
glPushMatrix(); // push the GL stack to get a new matrix
glLoadIdentity(); // load the identity matrix
glTranslatef(0, 0, -600.0); // translate the model matrix
glMultMatrixf(mNow); // multiply by this matrix
glEnable(GL_TEXTURE_2D); // enable 2D textures
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); // set the vertical (?) wrap
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); // and the horizontal
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); // set magnification filter
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); // set shrinking filter
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, theBlitMap->Bounds().Width() + 1, theBlitMap->Bounds().Height() + 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, theBlitMap->Bits());
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); // just stick the texture on
glBindTexture(GL_TEXTURE_2D, texName); // bind the texture to the name (again?)
glCallList(torusDisplayListID); // and call the display list
glPopMatrix(); // pop the matrix back off the stack
SwapBuffers(); // swap the buffers to draw it
glDisable(GL_TEXTURE_2D); // switch textures back off
UnlockGL(); // unlock GL
} // end of GL case
} // end of Draw()
// interaction (mouse motion)
void MotionCB(int x, int y)
{
GLMouseButtonInfo mouseButtonInfo;
mouseButtonInfo = GlobalResourceManager::use()->getMouseButtonInfo();
if( mouseButtonInfo.button == GLUT_RIGHT_BUTTON )
{
HVect arcball_coords;
arcball_coords.x = 2.0*(float)x/(float)g_width - 1.0 ;
arcball_coords.y = -2.0*(float)y/(float)g_height + 1.0 ;
Ball_Mouse(g_arcball,arcball_coords);
Ball_Update(g_arcball);
glutPostRedisplay() ;
}
else if( mouseButtonInfo.button == GLUT_MIDDLE_BUTTON )
{
if( y - g_prevY > 0 )
g_zoom = g_zoom * 1.03 ;
else
g_zoom = g_zoom * 0.97 ;
g_prevY = y ;
glutPostRedisplay() ;
}
myMotion(x,y) ;
}
// interaction (mouse motion)
void myMotionCB(int x, int y)
{
if( Button == GLUT_LEFT_BUTTON )
{
HVect arcball_coords;
arcball_coords.x = 2.0*(float)x/(float)Width - 1.0 ;
arcball_coords.y = -2.0*(float)y/(float)Height + 1.0 ;
Ball_Mouse(Arcball,arcball_coords);
Ball_Update(Arcball);
glutPostRedisplay() ;
}
else if( Button == GLUT_RIGHT_BUTTON )
{
if( y - PrevY > 0 )
Zoom = Zoom * 1.03 ;
else
Zoom = Zoom * 0.97 ;
PrevY = y ;
glutPostRedisplay() ;
}
}
/*******************************************************************************
Event handler for mouse motion.
*******************************************************************************/
void myMotionCB(int x, int y)
{
if( g_button == GLUT_LEFT_BUTTON )
{
HVect arcball_coords;
arcball_coords.x = 2.0*(float)x/(float)g_width - 1.0 ;
arcball_coords.y = -2.0*(float)y/(float)g_height + 1.0;
Ball_Mouse(g_arcBall,arcball_coords);
Ball_Update(g_arcBall);
glutPostRedisplay();
}
else if( g_button == GLUT_RIGHT_BUTTON )
{
if( y - g_previousY > 0 )
g_zoom = g_zoom * 1.03f;
else
g_zoom = g_zoom * 0.97f;
g_previousY = y;
glutPostRedisplay();
}
}
// start or end interaction
void MouseCB(int button, int state, int x, int y)
{
GlobalResourceManager::use()->setMouseButtonInfo( button, state );
if( button == GLUT_RIGHT_BUTTON && state == GLUT_DOWN )
{
HVect arcball_coords;
arcball_coords.x = 2.0*(float)x/(float)g_width-1.0;
arcball_coords.y = -2.0*(float)y/(float)g_height+1.0;
Ball_Mouse(g_arcball, arcball_coords) ;
Ball_Update(g_arcball);
Ball_BeginDrag(g_arcball);
}
if( button == GLUT_RIGHT_BUTTON && state == GLUT_UP )
{
Ball_EndDrag(g_arcball);
// Button = -1 ;
GlobalResourceManager::use()->setMouseButtonInfo( -1, state );
}
if( button == GLUT_MIDDLE_BUTTON && state == GLUT_DOWN )
{
g_prevY = y ;
}
myMouse(button, state, x,y) ;
// Tell the system to redraw the window
glutPostRedisplay() ;
}
void CMassView::MouseDown(BPoint where) // reacts to mouse clicks
{
long whichButtons = 1; // used for tracking which buttons are down
Window()->CurrentMessage()->FindInt32("buttons", &whichButtons); // find out which buttons are down
if (inGLMode && (whichButtons & B_SECONDARY_MOUSE_BUTTON)) // if we are in GL mode, and button 2 is down
{
float frameWidth = Frame().Width(), frameHeight = Frame().Height(); // find the width & height
dragMode = dragBall; // drag the arcball to rotate
HVect vNow; // vector type for passing to ball functions
vNow.x = (2.0 * where.x - frameWidth)/frameWidth; // set the vector
vNow.y = -(2.0 * where.y - frameHeight)/frameHeight; // in both dimensions
Ball_Mouse(&ball, vNow); // and pass it to the Ball functions
Ball_BeginDrag(&ball); // start dragging
while (whichButtons) // loop until drop the mouse
{
snooze(20 * 1000); // snooze for 20 µs
GetMouse(&where, (ulong *)&whichButtons, true); // get the mouse location, &c.
vNow.x = (2.0 * where.x - frameWidth)/frameWidth; // set the vector
vNow.y = -(2.0 * where.y - frameHeight)/frameHeight; // in both dimensions
Ball_Mouse(&ball, vNow); // and pass it to the Ball functions
Draw(Frame()); // redraw the entire frame
} // end of while (whichButtons)
Ball_EndDrag(&ball); // stop dragging
} // end of case where dragging
else if (acceptClicks) // if we have "accept" switched on
{
long row, col; // the board coordinates of the click
if (!inGLMode) // if it's the regular board
{
row = where.y / CELL_SIZE; // calculate which row to look in
col = where.x / CELL_SIZE; // and which column
} // end of normal mode
else
{
GLubyte theColour[4]; // array for retrieving "colour"
LockGL(); // lock in preparation for drawing
GLfloat mNow[16]; // local matrix for ball routines
Ball_Update(&ball); // update the data for the ball
Ball_Value(&ball, mNow); // retrieve the ball's position as a matrix
glDisable(GL_LIGHTING); // disable lighting
glShadeModel(GL_FLAT); // switch to flat shading
glMatrixMode(GL_MODELVIEW); // make sure that we are set to the model matrix
glClearColor(0.0, 0.0, 0.0, 1.0); // and set the "clear" colour to black
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear the window to black
glPushMatrix(); // push the GL stack to get a new matrix
glLoadIdentity(); // load the identity matrix
glTranslatef(0, 0, -600.0); // translate the model matrix
glMultMatrixf(mNow); // multiply by this matrix
glCallList(torusPickListID); // and call the display list
glReadPixels(where.x, Frame().Height() - where.y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, theColour);
// read a single pixel at the mouse location
glPopMatrix(); // pop the matrix back off the stack
glEnable(GL_LIGHTING); // re-enable lighting
glShadeModel(GL_SMOOTH); // and smoothness
UnlockGL(); // unlock GL
Draw(Frame()); // redraw the entire picture
row = theColour[1] - 128; col = theColour[0] - 128; // retrieve the row & column
// (background is black & returns -128)
// printf("%d %d\n", row, col); return;
} // end of GL mode code
if (row < 0) return; // make sure it is a legal cell
else if (row >= theBoard.getHeight()) return; // i.e. not off top or bottom
if (col < 0) return; // same with left & right
else if (col >= theBoard.getWidth()) return;
BMessage *theMessage = new BMessage(CM_MSG_MOVE_CHOSEN); // create a message for it
acceptClicks = false; // turn off "accept clicks"
theMessage->AddInt32("row", row); theMessage->AddInt32("column", col); // add the coordinates to the message
be_app->PostMessage(theMessage); // send the message off
delete theMessage; // get rid of the message when done
} // end of case where we accept clicks
} // end of MouseDown()
