void glmotion_main(ViewInfo * v, GdkEventMotion * event,
GtkWidget * widget)
{
int a=get_mode(v);
redraw = FALSE;
/*panning */
if (a == MM_PAN)
glmotion_pan(v);
/*rotating, only in 3d v */
if (a == MM_ROTATE)
glmotion_rotate(v);
/*zooming */
if (a == MM_ZOOM)
glmotion_zoom(v);
/*selection rect */
if ((a == MM_RECTANGULAR_SELECT) || (a == 5))
{
GetFixedOGLPos((int) event->x, (int) event->y, v->GLDepth,
&(v->mouse.GLfinalPos.x), &(v->mouse.GLfinalPos.y), &(v->mouse.GLfinalPos.z));
redraw = TRUE;
}
if (a == MM_MOVE)
{
GetFixedOGLPos((int) event->x, (int) event->y, v->GLDepth,
&(v->mouse.GLfinalPos.x), &(v->mouse.GLfinalPos.y), &(v->mouse.GLfinalPos.z));
redraw = TRUE;
}
if (redraw)
gdk_window_invalidate_rect(widget->window, &widget->allocation,
FALSE);
}
/*
when mouse is moved over glcanvas this function is called
params:gtk opgn gl canvas , GdkEventMotion object and custom data
return value:always TRUE !!!
*/
static gboolean motion_notify_event(GtkWidget * widget,
GdkEventMotion * event, gpointer data)
{
/* float w = (float)widget->allocation.width; */
/* float h = (float)widget->allocation.height; */
float x = (float) event->x;
float y = (float) event->y;
gboolean redraw = FALSE;
dx = x - begin_x;
dy = y - begin_y;
view->mouse.dx = dx;
view->mouse.dy = dy;
view->mouse.mouse_X = x;
view->mouse.mouse_Y = y;
/*panning */
if ((event->state & GDK_BUTTON1_MASK)
&& (view->mouse.mouse_mode == MM_PAN)) {
if (glmotion_main(view, event, widget))
redraw = TRUE;
}
/*rotating, only in 3d view */
if ((view->active_camera >= 0) && (view->mouse.mouse_mode == MM_ROTATE)
&& (event->state & GDK_BUTTON1_MASK)) {
if (glmotion_main(view, event, widget))
redraw = TRUE;
}
/*zooming */
if ((event->state & GDK_BUTTON1_MASK)
&& (view->mouse.mouse_mode == MM_ZOOM))
{
if (glmotion_main(view, event, widget))
redraw = TRUE;
}
/*selection rect */
if ((event->state & GDK_BUTTON1_MASK)
&& ((view->mouse.mouse_mode == MM_RECTANGULAR_SELECT)
|| (view->mouse.mouse_mode == 5))) {
GetFixedOGLPos((int) x, (int) y, view->GLDepth, &(view->GLx2),
&(view->GLy2), &(view->GLz2));
redraw = TRUE;
}
if ((event->state & GDK_BUTTON1_MASK)
&& (view->mouse.mouse_mode == MM_MOVE)) {
GetFixedOGLPos((int) x, (int) y, view->GLDepth, &(view->GLx2),
&(view->GLy2), &(view->GLz2));
redraw = TRUE;
}
if ((event->state & GDK_BUTTON1_MASK)
&& ((view->mouse.mouse_mode == MM_MAGNIFIER)
|| (view->mouse.mouse_mode == MM_FISHEYE_MAGNIFIER))) {
view->mouse.mouse_X = x;
view->mouse.mouse_Y = y;
redraw = TRUE;
}
begin_x = x;
begin_y = y;
if (redraw)
gdk_window_invalidate_rect(widget->window, &widget->allocation,
FALSE);
return TRUE;
}