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respect bins when deciding mouse region order

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This commit is contained in:
David Rose 2002-08-27 22:02:04 +00:00
parent 43a233d473
commit 7e8972ef58
1 changed files with 38 additions and 2 deletions
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40
panda/src/pgui/pgItem.cxx
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@ -28,6 +28,7 @@
#include "nodePath.h"
#include "cullTraverser.h"
#include "cullTraverserData.h"
#include "cullBinManager.h"
#include "dcast.h"
#ifdef HAVE_AUDIO
@ -182,9 +183,44 @@ cull_callback(CullTraverser *trav, CullTraverserData &data) {
DCAST_INTO_R(pg_trav, trav, true);
const LMatrix4f &transform = data._net_transform->get_mat();
activate_region(transform, pg_trav->_sort_index);
pg_trav->_sort_index++;
// Consider the cull bin this object is in. Since the binning
// affects the render order, we want bins that render later to
// get higher sort values.
int bin_index = data._state->get_bin_index();
int sort;
CullBinManager *bin_manager = CullBinManager::get_global_ptr();
CullBinManager::BinType bin_type = bin_manager->get_bin_type(bin_index);
if (bin_type == CullBinManager::BT_fixed) {
// If the bin is a "fixed" type bin, our local sort is based
// on the fixed order.
sort = data._state->get_draw_order();
} else if (bin_type == CullBinManager::BT_unsorted) {
// If the bin is an "unsorted" type bin, we base the local
// sort on the scene graph order.
sort = pg_trav->_sort_index;
pg_trav->_sort_index++;
} else {
// Otherwise, the local sort is irrelevant.
sort = 0;
}
// Now what order does this bin sort relative to the other bins?
// This becomes the high-order part of the final sort count.
int bin_sort = bin_manager->get_bin_sort(data._state->get_bin_index());
// Combine the two sorts into a single int. This assumes we
// only need 16 bits for each sort number, possibly an erroneous
// assumption. We should really provide two separate sort
// values, both ints, in the MouseWatcherRegion; but in the
// interest of expediency we work within the existing interface
// which only provides one.
sort = (bin_sort << 16) | (sort & 0xffff);
activate_region(transform, sort);
pg_trav->_top->add_region(get_region());
}
}