Method TableSetupScrollFreeze

KBotExt/imgui/imgui_tables.cpp:1516–1542

[Public]

// [Public]
void ImGui::TableSetupScrollFreeze(int columns, int rows)
{
	ImGuiContext& g = *GImGui;
	ImGuiTable* table = g.CurrentTable;
	IM_ASSERT(table != NULL && "Need to call TableSetupColumn() after BeginTable()!");
	IM_ASSERT(table->IsLayoutLocked == false && "Need to call TableSetupColumn() before first row!");
	IM_ASSERT(columns >= 0 && columns < IMGUI_TABLE_MAX_COLUMNS);
	IM_ASSERT(rows >= 0 && rows < 128); // Arbitrary limit

	table->FreezeColumnsRequest = (table->Flags & ImGuiTableFlags_ScrollX) ? (ImGuiTableColumnIdx)ImMin(columns, table->ColumnsCount) : 0;
	table->FreezeColumnsCount = (table->InnerWindow->Scroll.x != 0.0f) ? table->FreezeColumnsRequest : 0;
	table->FreezeRowsRequest = (table->Flags & ImGuiTableFlags_ScrollY) ? (ImGuiTableColumnIdx)rows : 0;
	table->FreezeRowsCount = (table->InnerWindow->Scroll.y != 0.0f) ? table->FreezeRowsRequest : 0;
	table->IsUnfrozenRows = (table->FreezeRowsCount == 0); // Make sure this is set before TableUpdateLayout() so ImGuiListClipper can benefit from it.b

	// Ensure frozen columns are ordered in their section. We still allow multiple frozen columns to be reordered.
	// FIXME-TABLE: This work for preserving 2143 into 21|43. How about 4321 turning into 21|43? (preserve relative order in each section)
	for (int column_n = 0; column_n < table->FreezeColumnsRequest; column_n++)
	{
		int order_n = table->DisplayOrderToIndex[column_n];
		if (order_n != column_n && order_n >= table->FreezeColumnsRequest)
		{
			ImSwap(table->Columns[table->DisplayOrderToIndex[order_n]].DisplayOrder, table->Columns[table->DisplayOrderToIndex[column_n]].DisplayOrder);
			ImSwap(table->DisplayOrderToIndex[order_n], table->DisplayOrderToIndex[column_n]);
		}
	}
}

//-----------------------------------------------------------------------------
// [SECTION] Tables: Simple accessors