Method TableBeginCell

KBotExt/imgui/imgui_tables.cpp:2004–2056

[Internal] Called by TableSetColumnIndex()/TableNextColumn() This is called very frequently, so we need to be mindful of unnecessary overhead. FIXME-TABLE FIXME-OPT: Could probably shortcut some things for non-active or clipped columns.

// This is called very frequently, so we need to be mindful of unnecessary overhead.
// FIXME-TABLE FIXME-OPT: Could probably shortcut some things for non-active or clipped columns.
void ImGui::TableBeginCell(ImGuiTable* table, int column_n)
{
	ImGuiContext& g = *GImGui;
	ImGuiTableColumn* column = &table->Columns[column_n];
	ImGuiWindow* window = table->InnerWindow;
	table->CurrentColumn = column_n;

	// Start position is roughly ~~ CellRect.Min + CellPadding + Indent
	float start_x = column->WorkMinX;
	if (column->Flags & ImGuiTableColumnFlags_IndentEnable)
		start_x += table->RowIndentOffsetX; // ~~ += window.DC.Indent.x - table->HostIndentX, except we locked it for the row.

	window->DC.CursorPos.x = start_x;
	window->DC.CursorPos.y = table->RowPosY1 + table->RowCellPaddingY;
	window->DC.CursorMaxPos.x = window->DC.CursorPos.x;
	window->DC.ColumnsOffset.x = start_x - window->Pos.x - window->DC.Indent.x; // FIXME-WORKRECT
	window->DC.CursorPosPrevLine.x = window->DC.CursorPos.x; // PrevLine.y is preserved. This allows users to call SameLine() to share LineSize between columns.
	window->DC.CurrLineTextBaseOffset = table->RowTextBaseline;
	window->DC.NavLayerCurrent = (ImGuiNavLayer)column->NavLayerCurrent;

	// Note how WorkRect.Max.y is only set once during layout
	window->WorkRect.Min.y = window->DC.CursorPos.y;
	window->WorkRect.Min.x = column->WorkMinX;
	window->WorkRect.Max.x = column->WorkMaxX;
	window->DC.ItemWidth = column->ItemWidth;

	window->SkipItems = column->IsSkipItems;
	if (column->IsSkipItems)
	{
		g.LastItemData.ID = 0;
		g.LastItemData.StatusFlags = 0;
	}

	if (table->Flags & ImGuiTableFlags_NoClip)
	{
		// FIXME: if we end up drawing all borders/bg in EndTable, could remove this and just assert that channel hasn't changed.
		table->DrawSplitter->SetCurrentChannel(window->DrawList, TABLE_DRAW_CHANNEL_NOCLIP);
		//IM_ASSERT(table->DrawSplitter._Current == TABLE_DRAW_CHANNEL_NOCLIP);
	}
	else
	{
		// FIXME-TABLE: Could avoid this if draw channel is dummy channel?
		SetWindowClipRectBeforeSetChannel(window, column->ClipRect);
		table->DrawSplitter->SetCurrentChannel(window->DrawList, column->DrawChannelCurrent);
	}

	// Logging
	if (g.LogEnabled && !column->IsSkipItems)
	{
		LogRenderedText(&window->DC.CursorPos, "|");
		g.LogLinePosY = FLT_MAX;
	}
}

// [Internal] Called by TableNextRow()/TableSetColumnIndex()/TableNextColumn()
void ImGui::TableEndCell(ImGuiTable* table)