1 files changed, 119 insertions, 0 deletions
diff --git a/core/src/Model/Template/TableTemplate.cpp b/core/src/Model/Template/TableTemplate.cpp
new file mode 100644
index 0000000..caf0e21
--- /dev/null
+++ b/core/src/Model/Template/TableTemplate.cpp
@@ -0,0 +1,119 @@
+#include "TableTemplate.hpp"
+
+bool TableCell::IsPrimaryCell() const
+{
+	return PrimaryCellLocation == Location;
+}
+
+bool TableCell::IsMergedCell() const
+{
+	return PrimaryCellLocation.x == -1 || PrimaryCellLocation.y == -1;
+}
+
+int TableTemplate::GetTableWidth() const
+{
+	return mTableWidth;
+}
+
+int TableTemplate::GetTableHeight() const
+{
+	return mTableHeight;
+}
+
+void TableTemplate::Resize(int newWidth, int newHeight)
+{
+	// TODO this doesn't gracefully handle resizing to a smaller size which trims some merged cells
+
+	std::vector<TableCell> cells;
+	cells.reserve(newWidth * newHeight);
+
+	int yEnd = std::min(mTableHeight, newHeight);
+	int xEnd = std::min(mTableWidth, newWidth);
+	for (int y = 0; y < yEnd; ++y) {
+		if (y >= mTableHeight) {
+			for (int x = 0; x < xEnd; ++x) {
+				cells.push_back(TableCell{});
+			}
+			continue;
+		}
+
+		for (int x = 0; x < xEnd; ++x) {
+			if (x >= mTableWidth) {
+				cells.push_back(TableCell{});
+			} else {
+				auto& cell = GetCell({ x, y });
+				cells.push_back(std::move(cell));
+			}
+		}
+	}
+
+	mCells = std::move(cells);
+}
+
+const TableCell& TableTemplate::GetCell(Vec2i pos) const
+{
+	return mCells[pos.y * mTableWidth + pos.x];
+}
+
+TableCell& TableTemplate::GetCell(Vec2i pos)
+{
+	return const_cast<TableCell&>(const_cast<const TableTemplate*>(this)->GetCell(pos));
+}
+
+TableTemplate::MergeCellsResult TableTemplate::MergeCells(Vec2i topLeft, Vec2i bottomRight)
+{
+	auto SortTwo = [](int& a, int& b) {
+		if (a > b) {
+			std::swap(a, b);
+		}
+	};
+	SortTwo(topLeft.x, bottomRight.x);
+	SortTwo(topLeft.y, bottomRight.y);
+
+	auto ResetProgress = [&]() {
+		for (int y = topLeft.y; y < bottomRight.y; ++y) {
+			for (int x = topLeft.x; x < bottomRight.x; ++x) {
+				auto& cell = GetCell({ x, y });
+				cell.PrimaryCellLocation = { -1, -1 };
+			}
+		}
+	};
+
+	for (int y = topLeft.y; y < bottomRight.y; ++y) {
+		for (int x = topLeft.x; x < bottomRight.x; ++x) {
+			auto& cell = GetCell({ x, y });
+			if (cell.IsMergedCell()) {
+				ResetProgress();
+				return MCR_CellAlreadyMerged;
+			}
+
+			cell.PrimaryCellLocation = topLeft;
+		}
+	}
+
+	auto& primaryCell = GetCell(topLeft);
+	primaryCell.SpanX = bottomRight.x - topLeft.x;
+	primaryCell.SpanY = bottomRight.y - topLeft.y;
+
+	return MCR_Success;
+}
+
+TableTemplate::BreakCellsResult TableTemplate::BreakCells(Vec2i topLeft)
+{
+	auto& primaryCell = GetCell(topLeft);
+	if (!primaryCell.IsMergedCell()) {
+		return BCR_CellNotMerged;
+	}
+
+	for (int dy = 0; dy < primaryCell.SpanY; ++dy) {
+		for (int dx = 0; dx < primaryCell.SpanX; ++dx) {
+			auto& cell = GetCell({ topLeft.x + dx, topLeft.y + dy });
+			cell.PrimaryCellLocation = { -1, -1 };
+		}
+	}
+
+	primaryCell.SpanX = 1;
+	primaryCell.SpanY = 1;
+
+	return BCR_Success;
+}