PdfConverter/range/Advanced/TSPdfTableRange.tsf

type TSPdfTableRange = class(TSPdfBasicRange)
public
    function Create(docx_to_pdf: TSDocxToPdf; pg: TSPage; components: Components; table: Tbl);
    function Calc();
    function Do();override;

private
    function GetCellMatrix(grid_cols: array of GridColUnitDecorator);
    function ResetCoordinates(tbl_pr: TblPr; grid_cols: array of GridCol);
    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);
    function SetTblStylePr(var tc_pr: TcPr; type: string);

private
    [weakref]docx_to_pdf_: TSDocxToPdf;
    [weakref]docx_components_ware_: Components;
    [weakref]table_: Tbl;
    [weakref]page_: TSPage;
    range_array_: tableArray;
end;

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

function TSPdfTableRange.Calc();
begin
    {self.}SetTblPr(table_.TblPr);
    table_.TblPr := 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(table_.TblPr, 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
    {self.}GetCellMatrix(grid_cols);
end;

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

function TSPdfTableRange.GetCellMatrix(grid_cols: array of GridColUnitDecorator);
begin
    trs := table_.Trs();
    for i,tr in trs do
    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;
        tcs := tr.Tcs();
        pos := 0;
        for j,tc in tcs do
        begin
            if i = 0 then {self.}SetTblStylePr(tc.TcPr, "firstRow");
            cell_range := new TSPdfCellRange(docx_to_pdf_, page_, docx_components_ware_, tc, table_.TblPr);
            cell_range.StartX := tc_x;
            cell_range.StartY := tc_y;
            cell_range.FixedHeight := tc_h;
            cell_range.Width := grid_cols[pos].W;
            cell_range.LowerBound := {self.}LowerBound;
            range_array_[i][pos] := cell_range;
            grid_span := new GridSpanUnitDecorator(tc.TcPr.GridSpan);
            pos++;
            for k:=grid_span.Val-1 downto 1 do
                cell_range.Width += grid_cols[pos++].W;
            cell_range.Calc();
            tc_x += cell_range.Width;
            if cell_range.DynamicHeight > max_height then max_height := cell_range.DynamicHeight;
        end
        if tc_h > max_height then max_height := tc_h;
        surplus := max_height - ({self.}EndY - {self.}LowerBound);
        arr := range_array_[i];
        for _,range in arr 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
    end
    for i:=length(range_array_)-1 downto 0 do
    begin
        for j:=0 to length(range_array_[i])-1 do
        begin
            range := range_array_[i][j];
            if ifnil(range) then continue;
            if range.VMerge then
            begin
                if range.VMerge = "restart" then
                begin
                    break;
                end
                else begin
                    range_array_[i-1][j].SetVMergeEdge(range);
                    range_array_[i][j] := nil;
                end
            end
        end
    end
end;

function TSPdfTableRange.SetTblStylePr(var tc_pr: TcPr; type: string);
begin
    {self.}SetTcPr(tc_pr);
    tbl_style_pr := docx_components_ware_.GetTblStylePrByType(table_.TblPr.TblStyle.Val, type);
    if tbl_style_pr then tc_pr.Copy(tbl_style_pr.TcPr);
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.GetStyleByStyleId(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.GetStyleByStyleId(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.GetStyleByStyleId(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;