void ScrollGroup::scrollTo(int x, int y)
{
lock();
if( hScrollBar != 0 && x != hScrollBar->value)
hScrollBar->setValue(x);
if( vScrollBar != 0 && y != vScrollBar->value)
vScrollBar->setValue(y);
unlock();
scrollDraw();
}
void TScroller::handleEvent(TEvent& event)
{
TView::handleEvent(event);
if( event.what == evBroadcast &&
event.message.command == cmScrollBarChanged &&
( event.message.infoPtr == hScrollBar ||
event.message.infoPtr == vScrollBar )
)
scrollDraw();
}
/*
* Creates the virtual envirnment.
*/
void display (void) {
glClearColor (0.0,0.0,0.0,1.0);
glClear (GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
gluLookAt(eye[0],eye[1],eye[2], center[0],center[1],center[2],up[0],up[1],up[2]);
scrollDraw();
//swap buffers
glutSwapBuffers();
}
void ScrollGroup::setLimit(int x, int y)
{
limit.x = x;
limit.y = y;
lock();
if(hScrollBar != 0)
hScrollBar->setParams(hScrollBar->value, 0, x-size.x, size.x-1, 1);
if(vScrollBar != 0 )
vScrollBar->setParams(vScrollBar->value, 0, y-size.y, size.y-1, 1);
unlock();
scrollDraw();
}
void ScrollGroup::handleEvent(TEvent& event)
{
TGroup::handleEvent(event);
if(event.what == evBroadcast)
{
if(event.message.command == cmScrollBarChanged &&
(event.message.infoPtr == hScrollBar ||
event.message.infoPtr == vScrollBar))
scrollDraw();
else if(event.message.command == cmReceivedFocus &&
firstThat(isView, event.message.infoPtr) != 0)
focusSubView((TView*) event.message.infoPtr);
}
}
