| 178 | } |
| 179 | |
| 180 | void MovableControl::OnMove(wxMouseEvent& evt) |
| 181 | { |
| 182 | if(!mDragging) |
| 183 | return; |
| 184 | |
| 185 | auto parent = GetParent(); |
| 186 | if(!parent) |
| 187 | return; |
| 188 | |
| 189 | wxPoint newPosition = wxGetMousePosition() - mInitialPosition; |
| 190 | Move(GetParent()->ScreenToClient(newPosition)); |
| 191 | |
| 192 | if(auto boxSizer = dynamic_cast<wxBoxSizer*>(parent->GetSizer())) |
| 193 | { |
| 194 | if(boxSizer->GetOrientation() == wxVERTICAL) |
| 195 | { |
| 196 | auto targetIndex = mSourceIndex; |
| 197 | |
| 198 | //assuming that items are ordered from top to bottom (i > j <=> y(i) > y(j)) |
| 199 | //compare wxSizerItem position with the current MovableControl position! |
| 200 | if(GetPosition().y < boxSizer->GetItem(mSourceIndex)->GetPosition().y) |
| 201 | { |
| 202 | //moving up |
| 203 | for(int i = 0; i < mSourceIndex; ++i) |
| 204 | { |
| 205 | const auto item = boxSizer->GetItem(i); |
| 206 | |
| 207 | if(GetRect().GetTop() <= item->GetPosition().y + item->GetSize().y / 2) |
| 208 | { |
| 209 | targetIndex = i; |
| 210 | break; |
| 211 | } |
| 212 | } |
| 213 | } |
| 214 | else |
| 215 | { |
| 216 | //moving down |
| 217 | for(int i = static_cast<int>(boxSizer->GetItemCount()) - 1; i > mSourceIndex; --i) |
| 218 | { |
| 219 | const auto item = boxSizer->GetItem(i); |
| 220 | if(GetRect().GetBottom() >= item->GetPosition().y + item->GetSize().y / 2) |
| 221 | { |
| 222 | targetIndex = i; |
| 223 | break; |
| 224 | } |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | if(targetIndex != mTargetIndex) |
| 229 | { |
| 230 | mTargetIndex = targetIndex; |
| 231 | ProcessDragEvent(parent, EVT_MOVABLE_CONTROL_DRAG_POSITION); |
| 232 | } |
| 233 | } |
| 234 | } |
| 235 | } |