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incorporate DisplayRegion scale fix from Douglas Warren

This commit is contained in:
David Rose 2005-12-22 17:33:57 +00:00
parent f1c0b0e852
commit c39ef34932
1 changed files with 12 additions and 2 deletions
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14
panda/src/tform/mouseWatcher.cxx
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@ -1040,8 +1040,18 @@ do_transmit_data(const DataNodeTransmit &input, DataNodeTransmit &output) {
float left, right, bottom, top;
_display_region->get_dimensions(left, right, bottom, top);
LVecBase2f new_f((f[0] - left) / (right - left),
(f[1] - bottom) / (top - bottom));
// Need to translate this into DisplayRegion [0, 1] space
float x = (f[0] + 1.0f) / 2.0f;
// Scale in DR space
float xp = (x - left) / (right - left);
// Translate back into [-1, 1] space
float xpp = (xp * 2.0f) - 1.0f;
float y = (f[1] + 1.0f) / 2.0f;
float yp = (y - bottom) / (top - bottom);
float ypp = (yp * 2.0f) - 1.0f;
LVecBase2f new_f(xpp, ypp);
LVecBase2f new_p(p[0] - xo, p[1] - xo);
set_mouse(new_f, new_p);