| 120 | |
| 121 | |
| 122 | void FCommandBuffer::MakeStartPosGood() |
| 123 | { |
| 124 | // Make sure both values point to something valid. |
| 125 | if (CursorPos > Text.length()) CursorPos = (unsigned)Text.length(); |
| 126 | if (StartPos > Text.length()) StartPos = (unsigned)Text.length(); |
| 127 | |
| 128 | CursorPosCells = CalcCellSize(CursorPos); |
| 129 | StartPosCells = CalcCellSize(StartPos); |
| 130 | unsigned LengthCells = CalcCellSize((unsigned)Text.length()); |
| 131 | |
| 132 | int n = StartPosCells; |
| 133 | unsigned cols = ConCols / active_con_scale(twod); |
| 134 | |
| 135 | if (StartPosCells >= LengthCells) |
| 136 | { // Start of visible line is beyond end of line |
| 137 | n = CursorPosCells - cols + 2; |
| 138 | } |
| 139 | if ((CursorPosCells - StartPosCells) >= cols - 2) |
| 140 | { // The cursor is beyond the visible part of the line |
| 141 | n = CursorPosCells - cols + 2; |
| 142 | } |
| 143 | if (StartPosCells > CursorPosCells) |
| 144 | { // The cursor is in front of the visible part of the line |
| 145 | n = CursorPosCells; |
| 146 | } |
| 147 | StartPosCells = max(0, n); |
| 148 | bool overflow; |
| 149 | StartPos = CharsForCells(StartPosCells, &overflow); |
| 150 | if (overflow) |
| 151 | { |
| 152 | // We ended up in the middle of a double cell character, so set the start to the following character. |
| 153 | StartPosCells++; |
| 154 | StartPos = CharsForCells(StartPosCells, &overflow); |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | void FCommandBuffer::CursorStart() |
| 159 | { |
no test coverage detected