PdfConverter/range/Advanced/TSPdfTableRange.tsf

type TSPdfTableRange = class(TSPdfBasicRange)
public
    function Create(docx_to_pdf: TSDocxToPdf; pg: PdfPage; components: Components; sect_ware: TSSectWare; paragraph: P);
    function Calc();
    function Do();override;

private
    function ProcessTrData(grid_cols: array of GridCol; tr: Tr; tbl_pr: TblPr): array of TSPdfAbstractRange;
    function ResetCoordinates(tbl_pr: TblPr; grid_cols: array of GridCol);
    function CheckAndAddPage(y: real; offset: real): boolean;
    function SetTblPr(tbl_pr: TblPr);
    function SetTblPrByStyleId(var tbl_pr: TblPr; style_id: string);
    function SetTrPr(var tr_pr: TrPr);
    function SetTrPrByStyleId(var tr_pr: TrPr; style_id: string);
    function SetTcPr(var tc_pr: TcPr);
    function SetTcPrByStyleId(var tc_pr: TcPr; style_id: string);

private
    [weakref]docx_to_pdf_: TSDocxToPdf;
    [weakref]docx_components_ware_: Components;
    [weakref]sect_ware_: TSSectWare;
    [weakref]table_: Tbl;
    page_: PdfPage;
    [weakref]range_array_: tableArray;
    point_: TSPoint;
end;

function TSPdfTableRange.Create(docx_to_pdf: TSDocxToPdf; pg: PdfPage; components: Components; sect_ware: TSSectWare; table: Tbl);
begin
    docx_to_pdf_ := docx_to_pdf;
    page_ := pg;
    docx_components_ware_ := Components;
    sect_ware_ := sect_ware;
    table_ := table;
    range_array_ := array();
    {self.}Page := page_;
end;

function TSPdfTableRange.Calc();
begin
    // return;
    {self.}SetTblPr(table_.TblPr);
    tbl_pr := new TblPrUnitDecorator(table_.TblPr);
    grid_cols := table_.TblGrid.GridCols();
    for i:=0 to length(grid_cols)-1 do
        grid_cols[i] := new GridColUnitDecorator(grid_cols[i]);
    {self.}ResetCoordinates(tbl_pr, grid_cols);
    {self.}EndX := {self.}StartX;
    {self.}EndY := {self.}StartY;
    // 如果是根据内容自适应，应该计算并调整grid_cols的值
    trs := table_.Trs();
    for i,tr in trs do
        range_array_[i] := {self.}ProcessTrData(grid_cols, tr, tbl_pr);
end;

function TSPdfTableRange.Do();
begin
    for _,row in range_array_ do
        for _,range in row do
            range.Do();
end;

function TSPdfTableRange.CheckAndAddPage(y: real; offset: real): boolean;
begin
    if y - offset < sect_ware_.SectPr.PgMar.Bottom then
    begin
        page_ := docx_to_pdf_.GetNextPage(page_);
        if ifnil(page_) then page_ := docx_to_pdf_.AddPage(sect_ware_);
        point := docx_to_pdf_.GetCurrentPoint();
        {self.}EndY := point.Y;
        return true;
    end
    return false;
end;

function TSPdfTableRange.ProcessTrData(grid_cols: array of GridCol; tr: Tr; tbl_pr: TblPr): array of TSPdfAbstractRange;
begin
    {self.}SetTrPr(tr.TrPr);
    tr_pr := new TrPrUnitDecorator(tr.TrPr);
    height := tr_pr.TrHeight.Val;
    tc_x := {self.}EndX;
    tc_y := {self.}EndY;
    tc_h := height;
    max_height := 0;
    cell_range_array := array();
    tcs := tr.Tcs();
    for i,tc in tcs do
    begin
        cell_range := new TSPdfCellRange(docx_to_pdf_, page_, docx_components_ware_, sect_ware_, tc, tbl_pr);
        cell_range.StartX := tc_x;
        cell_range.StartY := tc_y;
        cell_range.Width := grid_cols[i].W;
        cell_range.FixedHeight := tc_h;
        cell_range.Calc();
        tc_x += grid_cols[i].W;
        if cell_range.DynamicHeight > max_height then max_height := cell_range.DynamicHeight;
        cell_range_array[length(cell_range_array)] := cell_range;
    end
    if tc_h > max_height then max_height := tc_h;
    surplus := max_height - ({self.}EndY - sect_ware_.SectPr.PgMar.Bottom);
    for _,range in cell_range_array do
    begin
        range.AlignHeight(max_height, surplus);
        {self.}EndY := range.EndY; // 理论上每个range.EndY都是一个值
        page_ := range.GetLastPage();
    end
    return cell_range_array;
end;

function TSPdfTableRange.ResetCoordinates(tbl_pr: TblPr; grid_cols: array of GridCol);
begin
    total_width := 0;
    for _,grid_col in grid_cols do
        total_width += grid_col.W;
    diff := total_width - {self.}Width;
    case tbl_pr.jc.Val of
        "center":
        begin
            offset := diff/2;
            {self.}StartX -= offset;
        end
        "right":
        begin
            {self.}StartX -= diff;
        end
    end;
    {self.}Width := total_width;
end;

function TSPdfTableRange.SetTblPr(var tbl_pr: TblPr);
begin
    new_tbl_pr := new TblPr();
    {self.}SetTblPrByStyleId(new_tbl_pr, tbl_pr.TblStyle.Val);
    new_tbl_pr.Copy(tbl_pr);
    tbl_pr.Copy(new_tbl_pr);
end;

function TSPdfTableRange.SetTblPrByStyleId(var tbl_pr: TblPr; style_id: string);
begin
    styles := docx_components_ware_.GetStylesAdapter();
    style := styles.StyleId(style_id);
    if ifObj(style) then
    begin
        based_on := style.BasedOn.Val;
        {self.}SetTblPrByStyleId(tbl_pr, based_on);
        tbl_pr.Copy(style.TblPr);
    end
end;

function TSPdfTableRange.SetTrPr(var tr_pr: TrPr);
begin
    new_tr_pr := new TrPr();
    {self.}SetTrPrByStyleId(new_tr_pr, table_.TblPr.TblStyle.Val);
    new_tr_pr.Copy(tr_pr);
    tr_pr.Copy(new_tr_pr);
end;

function TSPdfTableRange.SetTrPrByStyleId(var tr_pr: TrPr; style_id: string);
begin
    styles := docx_components_ware_.GetStylesAdapter();
    style := styles.StyleId(style_id);
    if ifObj(style) then
    begin
        based_on := style.BasedOn.Val;
        {self.}SetTrPrByStyleId(tr_pr, based_on);
        tr_pr.Copy(style.TrPr);
    end
end;

function TSPdfTableRange.SetTcPr(var tc_pr: TcPr);
begin
    new_tc_pr := new TcPr();
    {self.}SetTcPrByStyleId(new_tc_pr, table_.TblPr.TblStyle.Val);
    new_tc_pr.Copy(tc_pr);
    tc_pr.Copy(new_tc_pr);
end;

function TSPdfTableRange.SetTcPrByStyleId(var tc_pr: TcPr; style_id: string);
begin
    styles := docx_components_ware_.GetStylesAdapter();
    style := styles.StyleId(style_id);
    if ifObj(style) then
    begin
        based_on := style.BasedOn.Val;
        {self.}SetTcPrByStyleId(tc_pr, based_on);
        tc_pr.Copy(style.TcPr);
    end
end;