void PassiveMotionCallback(int x, int y)
{
STPoint2 position = STPoint2(x, gWindowSizeY - y);
bool redisplay = false;
UIWidget * receiver = NULL;
for (list<UIWidget *>::iterator ii = gWidgets.begin();
ii != gWidgets.end(); ++ii)
{
UIWidget* widget = *ii;
if(widget->HitTest(position))
receiver = widget;
}
if(receiver != gEnteredWidget)
{
if(gEnteredWidget != NULL)
gEnteredWidget->HandleMouseLeave();
if(receiver != NULL)
receiver->HandleMouseEnter();
gEnteredWidget = receiver;
redisplay = true;
}
if(gEnteredWidget != NULL)
{
gEnteredWidget->HandleMouseMove(position);
redisplay = true;
}
if(redisplay)
glutPostRedisplay();
}
void MouseCallback(int button, int state, int x, int y)
{
STPoint2 position = STPoint2(x, gWindowSizeY - y);
bool redisplay = false;
UIWidget * receiver = NULL;
if(gCaptureWidget == NULL)
{
for (list<UIWidget *>::iterator ii = gWidgets.begin();
ii != gWidgets.end(); ++ii)
{
UIWidget* widget = *ii;
if(widget->HitTest(position))
receiver = widget;
}
}
if(button == GLUT_LEFT_BUTTON)
{
if(state == GLUT_DOWN)
{
if(receiver != NULL)
{
gCaptureWidget = receiver;
gCaptureWidget->HandleMouseDown(position);
redisplay = true;
}
else
{
char buf[64];
snprintf(buf, 64, "%i", gCurrentLineID++);
gActiveLine = new UILine(position, position, string(buf), LineDeleteCallback);
gWidgets.push_back(gActiveLine);
redisplay = true;
}
}
else if(state == GLUT_UP)
{
if(gCaptureWidget)
{
gCaptureWidget->HandleMouseUp(position);
gCaptureWidget = NULL;
redisplay = true;
}
if(gActiveLine)
{
gActiveLine->finalize();
gLines.push_back(gActiveLine);
gActiveLine = NULL;
redisplay = true;
}
}
}
if(redisplay)
glutPostRedisplay();
}