Method BeginTableEx

KBotExt/imgui/imgui_tables.cpp:306–580

}

bool    ImGui::BeginTableEx(const char* name, ImGuiID id, int columns_count, ImGuiTableFlags flags, const ImVec2& outer_size, float inner_width)
{
	ImGuiContext& g = *GImGui;
	ImGuiWindow* outer_window = GetCurrentWindow();
	if (outer_window->SkipItems) // Consistent with other tables + beneficial side effect that assert on miscalling EndTable() will be more visible.
		return false;

	// Sanity checks
	IM_ASSERT(columns_count > 0 && columns_count < IMGUI_TABLE_MAX_COLUMNS);
	if (flags & ImGuiTableFlags_ScrollX)
		IM_ASSERT(inner_width >= 0.0f);

	// If an outer size is specified ahead we will be able to early out when not visible. Exact clipping criteria may evolve.
	const bool use_child_window = (flags & (ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY)) != 0;
	const ImVec2 avail_size = GetContentRegionAvail();
	ImVec2 actual_outer_size = CalcItemSize(outer_size, ImMax(avail_size.x, 1.0f), use_child_window ? ImMax(avail_size.y, 1.0f) : 0.0f);
	ImRect outer_rect(outer_window->DC.CursorPos, outer_window->DC.CursorPos + actual_outer_size);
	if (use_child_window && IsClippedEx(outer_rect, 0))
	{
		ItemSize(outer_rect);
		return false;
	}

	// Acquire storage for the table
	ImGuiTable* table = g.Tables.GetOrAddByKey(id);
	const ImGuiTableFlags table_last_flags = table->Flags;

	// Acquire temporary buffers
	const int table_idx = g.Tables.GetIndex(table);
	if (++g.TablesTempDataStacked > g.TablesTempData.Size)
		g.TablesTempData.resize(g.TablesTempDataStacked, ImGuiTableTempData());
	ImGuiTableTempData* temp_data = table->TempData = &g.TablesTempData[g.TablesTempDataStacked - 1];
	temp_data->TableIndex = table_idx;
	table->DrawSplitter = &table->TempData->DrawSplitter;
	table->DrawSplitter->Clear();

	// Fix flags
	table->IsDefaultSizingPolicy = (flags & ImGuiTableFlags_SizingMask_) == 0;
	flags = TableFixFlags(flags, outer_window);

	// Initialize
	const int instance_no = (table->LastFrameActive != g.FrameCount) ? 0 : table->InstanceCurrent + 1;
	table->ID = id;
	table->Flags = flags;
	table->LastFrameActive = g.FrameCount;
	table->OuterWindow = table->InnerWindow = outer_window;
	table->ColumnsCount = columns_count;
	table->IsLayoutLocked = false;
	table->InnerWidth = inner_width;
	temp_data->UserOuterSize = outer_size;

	// Instance data (for instance 0, TableID == TableInstanceID)
	ImGuiID instance_id;
	table->InstanceCurrent = (ImS16)instance_no;
	if (instance_no > 0)
	{
		IM_ASSERT(table->ColumnsCount == columns_count && "BeginTable(): Cannot change columns count mid-frame while preserving same ID");
		if (table->InstanceDataExtra.Size < instance_no)