/* CTextureCanvas::onMouseEvent
* Called when and mouse event is generated (movement/clicking/etc)
*******************************************************************/
void CTextureCanvas::onMouseEvent(wxMouseEvent& e)
{
bool refresh = false;
// MOUSE MOVEMENT
if (e.Moving() || e.Dragging())
{
dragging = false;
// Pan if middle button is down
if (e.MiddleIsDown())
{
offset = offset + point2_t(e.GetPosition().x - mouse_prev.x, e.GetPosition().y - mouse_prev.y);
refresh = true;
dragging = true;
}
else if (e.LeftIsDown())
dragging = true;
// Check if patch hilight changes
point2_t pos = screenToTexPosition(e.GetX(), e.GetY());
int patch = patchAt(pos.x, pos.y);
if (hilight_patch != patch)
{
hilight_patch = patch;
refresh = true;
}
}
// LEFT BUTTON UP
else if (e.LeftUp())
{
// If we were dragging, generate end drag event
if (dragging)
{
dragging = false;
updateTexturePreview();
refresh = true;
wxCommandEvent evt(EVT_DRAG_END, GetId());
evt.SetInt(wxMOUSE_BTN_LEFT);
ProcessWindowEvent(evt);
}
}
// LEAVING
if (e.Leaving())
{
// Set no hilighted patch
hilight_patch = -1;
refresh = true;
}
// Refresh is needed
if (refresh)
Refresh();
// Update 'previous' mouse coordinates
mouse_prev.set(e.GetPosition().x, e.GetPosition().y);
}
char PatchMesh::intersect(unsigned idx, IntersectionContext * ctx) const
{
PointInsidePolygonTest pa = patchAt(idx);
if(!patchIntersect(pa, ctx)) return 0;
postIntersection(idx, ctx);
return 1;
}
char PatchMesh::selectFace(const unsigned & idx, SelectionContext * ctx) const
{
PointInsidePolygonTest pa = patchAt(idx);
if(!ctx->closeTo(pa.normal())) return 0;
Vector3F closestP;
char inside;
if(pa.distanceTo(ctx->center(), closestP, inside) > ctx->radius()) return 0;
ctx->addToSelection(idx);
return 1;
}
char PatchMesh::closestPoint(unsigned idx, const Vector3F & origin, IntersectionContext * ctx) const
{
PointInsidePolygonTest pa = patchAt(idx);
Vector3F px;
char inside = 1;
float d = pa.distanceTo(origin, px, inside);
if(d > ctx->m_minHitDistance)
return 0;
ctx->m_minHitDistance = d;
ctx->m_componentIdx = idx;
ctx->m_closestP = px;
ctx->m_hitP = px;
return 1;
}
Vector3F PatchMesh::getFaceNormal(const unsigned & idx) const
{
PointInsidePolygonTest pa = patchAt(idx);
return pa.normal();
}
