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Fixed a Grid editor issue #1308

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merged 4 commits into from
Mar 10, 2020
+16 −49
Merged

Fixed a Grid editor issue #1308

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1fd41d4
Fixed a Grid editor issue
ivan100sic Feb 17, 2020
af744ae
Explained the fix in ExtendRangeToHaveEvenCellEdges
ivan100sic Mar 5, 2020
bef8ccc
Simplified code in ExtendRangeToHaveEvenCellEdges
ivan100sic Mar 5, 2020
de5f5b8
Removed redundant comment, more camelCase
ivan100sic Mar 10, 2020
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65 changes: 16 additions & 49 deletions src/modules/fancyzones/editor/FancyZonesEditor/GridEditor.xaml.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -134,83 +134,50 @@ private void OnFullSplit(object o, SplitEventArgs e)

private void ExtendRangeToHaveEvenCellEdges()
{
// extend each edge of the [(_startCol, _startRow) - (_endCol, _endRow)] range based on merged cells until you have 4 straight edges with no "straddling cells"
// As long as there is an edge of the 2D range such that some zone crosses its boundary, extend
// that boundary. A single pass is not enough, a while loop is needed. This results in the unique
// smallest rectangle containing the initial range such that no zone is "broken", meaning that
// some part of it is inside the 2D range, and some part is outside.
GridLayoutModel model = Model;
bool possiblyBroken = true;

while (_startRow > 0)
while (possiblyBroken)
{
bool dirty = false;
possiblyBroken = false;

for (int col = _startCol; col <= _endCol; col++)
{
if (model.CellChildMap[_startRow - 1, col] == model.CellChildMap[_startRow, col])
if (_startRow > 0 && model.CellChildMap[_startRow - 1, col] == model.CellChildMap[_startRow, col])
{
_startRow--;
dirty = true;
possiblyBroken = true;
break;
}
}

if (!dirty)
{
break;
}
}

while (_endRow < model.Rows - 1)
{
bool dirty = false;
for (int col = _startCol; col <= _endCol; col++)
{
if (model.CellChildMap[_endRow + 1, col] == model.CellChildMap[_endRow, col])
if (_endRow < model.Rows - 1 && model.CellChildMap[_endRow + 1, col] == model.CellChildMap[_endRow, col])
{
_endRow++;
dirty = true;
possiblyBroken = true;
break;
}
}

if (!dirty)
{
break;
}
}

while (_startCol > 0)
{
bool dirty = false;
for (int row = _startRow; row <= _endRow; row++)
{
if (model.CellChildMap[row, _startCol - 1] == model.CellChildMap[row, _startCol])
if (_startCol > 0 && model.CellChildMap[row, _startCol - 1] == model.CellChildMap[row, _startCol])
{
_startCol--;
dirty = true;
possiblyBroken = true;
break;
}
}

if (!dirty)
{
break;
}
}

while (_endCol < model.Columns - 1)
{
bool dirty = false;
for (int row = _startRow; row <= _endRow; row++)
{
if (model.CellChildMap[row, _endCol + 1] == model.CellChildMap[row, _endCol])
if (_endCol < model.Columns - 1 && model.CellChildMap[row, _endCol + 1] == model.CellChildMap[row, _endCol])
{
_endCol++;
dirty = true;
possiblyBroken = true;
break;
}
}

if (!dirty)
{
break;
}
}
}

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