how to center widget inside a cell with custom row height

[mohamedelbachir]

hello here , i m' looking for the easiest way to center a widget inside a table cell.
there is a bunch of my code

float minRowHeight=30;
float minTableHeight=(minRowHeight)*m_numberOfProcess+9+5+TEXT_BASE_HEIGHT;
if (ImGui::BeginTable("table_scrolly", 3, flags,ImVec2(tableZone.x,minTableHeight<tableZone.y?minTableHeight:tableZone.y)))
{
    ImGui::TableSetupScrollFreeze(0, 1); // Make top row always visible
        ImGui::TableSetupColumn("PID", ImGuiTableColumnFlags_None);
        ImGui::TableSetupColumn("Temps Execution", ImGuiTableColumnFlags_None);
        ImGui::TableSetupColumn("Temps d'attente", ImGuiTableColumnFlags_None);
    //ImGui::TableHeadersRow();
    ImGui::TableNextRow(ImGuiTableRowFlags_Headers,minRowHeight);
    ImGui::TableSetColumnIndex(0);
    static bool pid=false;
    const char* column_name = ImGui::TableGetColumnName(0); // Retrieve name passed to TableSetupColumn()
    ImGui::PushID(0);
    ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
    ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1);
    ImGui::Checkbox("##checkall", &pid);
    ImGui::PopStyleVar(2);
    ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
    ImGui::TableHeader(column_name);
    ImGui::PopID();

    ImGui::TableSetColumnIndex(1);
    column_name = ImGui::TableGetColumnName(1); // Retrieve name passed to TableSetupColumn()
    ImGui::TableHeader(column_name);

    ImGui::TableSetColumnIndex(2);
    column_name = ImGui::TableGetColumnName(2); // Retrieve name passed to TableSetupColumn()
    ImGui::TableHeader(column_name);

    ImGui::PushStyleVar(ImGuiStyleVar_CellPadding,ImVec2(4,7));
    for (int row = 0; row < m_numberOfProcess; row++)
    {
        ImGui::TableNextRow();

            //PID Columns
            ImGui::TableNextColumn();
            ImGui::TableSetColumnIndex(0);
            static bool check=false;
            ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
            ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize,1);
            ImGui::Checkbox("##checkall", &check);
            ImGui::PopStyleVar(2);
            ImGui::SameLine();
            ImGui::Text("Hello %d,%d", 0, row);

            //Time waiting
            ImGui::TableNextColumn();
            ImGui::TableSetColumnIndex(1);
            char t[255]="du texte";
            ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
            ImGui::PushStyleVar(ImGuiStyleVar_CellPadding, ImVec2(0, 0));
            ImGui::InputText("##twait",t,IM_ARRAYSIZE(t),ImGuiInputTextFlags_ReadOnly);
            ImGui::PopStyleVar(2);

            //Time execution
            ImGui::TableNextColumn();
            ImGui::TableSetColumnIndex(2);
            ImGui::Text("Hello %d,%d", 0, row);
    }
    ImGui::PopStyleVar();
    ImGui::EndTable();
}

the result :