重构代码，抽象成range，完成段落的重构
This commit is contained in:
@@ -0,0 +1,10 @@
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type TSPdfAbstractRange = class
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public
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function Do();virtual;
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public
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X: real;
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Y: real; // range的起始坐标(x,y)
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W: real; // range的宽度
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H: real; // range的高度
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end;
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@@ -0,0 +1,26 @@
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type TSPdfImageRange = class(TSPdfAbstractRange)
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public
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function Do();override;
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public
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Page: PdfPage;
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Image: PdfImage;
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end;
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function TSPdfImageRange.Do();
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begin
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println("image = {}, x = {}, y = {}, w = {}, h = {}", image, x, y, w, h);
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self.Page.DrawImage(self.Image, self.X, self.Y, self.W, self.H);
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{$DEFINE WordToPdfTEST}
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{$IFDEF WordToPdfTEST}
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// Page.SetLineWidth(0.5);
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// Page.SetGrayStroke(0.5);
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// Page.MoveTo(0, self.Y);
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// Page.LineTo(90, self.Y);
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// Page.Stroke();
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self.Page.SetLineWidth(0.1);
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self.Page.SetGrayStroke(0.5);
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self.Page.Rectangle(0, Y, 900, H);
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self.Page.Stroke();
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{$ENDIF}
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end;
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@@ -0,0 +1,353 @@
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type TSPdfParagraphRange = class(TSPdfAbstractRange)
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public
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function Create(docx_to_pdf: TSDocxToPdf; components: Components; sect_ware: TSSectWare; paragraph: P);
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function Calc();
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function Do();override;
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function SetExtraStyleId(style_id: string);
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private
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function SetPPr(var ppr: PPr);
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function SetPPrByStyleId(var ppr: PPr; style_id: string);
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function SetRPr(var rpr; ppr: PPr);
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function SetRPrByStyleId(var rpr: RPr; style_id: string);
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function SetLvlText();
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function GetImageFileType(data: binary): string;
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function GetParagraphLineSpace(size: real; line: integer): real;
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function RangesToLines(ppr: PPr): tableArray;
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function CheckAndAddPage(y: real; offset: real): boolean;
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function GetUtf8CharLength(byte: string): integer;
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function RToTextRange(r: R; ppr: PPr);
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function SplitTextToTextRange(text: string; rpr: RPr);
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function RToDrawingRange(r: R; ppr: PPr);
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function SetLinesAlignment(lines_range_array: tableArray; ppr: PPr);
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private
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docx_to_pdf_: TSDocxToPdf;
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docx_components_: Components;
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sect_ware_: TSSectWare;
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paragraph_: P;
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extra_style_id_: string;
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range_array_: array of TSPdfAbstractRange;
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page_: PdfPage;
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point_: TSPoint;
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lines_range_array_: tableArray;
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end;
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function TSPdfParagraphRange.Create(docx_to_pdf: TSDocxToPdf; components: Components; sect_ware: TSSectWare; paragraph: P);
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begin
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docx_to_pdf_ := docx_to_pdf;
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docx_components_ := Components;
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sect_ware_ := sect_ware;
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paragraph_ := paragraph;
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extra_style_id_ := "";
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page_ := docx_to_pdf_.GetCurrentPage();
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range_array_ := array();
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point_ := new TSPoint(); // 动态记录段落的坐标位置
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lines_range_array_ := array();
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end;
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function TSPdfParagraphRange.Calc(): tableArray;
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begin
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self.SetPPr(paragraph_.PPr);
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self.SetLvlText();
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ppr := new PPrUnitDecorator(paragraph_.PPr);
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// 根据段落的间距确定新的坐标
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self.X += ppr.Ind.Left;
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self.W := self.W - ppr.Ind.Left - ppr.Ind.Right;
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point_.X := self.X;
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point_.Y := self.Y;
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self.CheckAndAddPage(point_.Y, ppr.Spacing.Before);
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point_.Y -= ppr.Spacing.Before;
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rs := paragraph_.Rs();
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if length(rs) = 0 then
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begin
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line_space := self.GetParagraphLineSpace(ppr.RPr.Sz.Val, ppr.Spacing.Line);
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if not self.H then self.H := ppr.Spacing.After + line_space;
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point_.Y -= self.H;
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end
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else begin
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for _, r in rs do
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begin
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self.SetRPr(r.RPr, paragraph_.PPr);
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if r.Br.Type = "page" then
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self.CheckAndAddPage(sect_ware_.SectPr.PgMar.Bottom, 1);
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else if ifObj(r.Drawing.XmlNode) then self.RToDrawingRange(r, ppr);
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else self.RToTextRange(r, ppr);
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end
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end
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self.RangesToLines(ppr);
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end;
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function TSPdfParagraphRange.Do();
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begin
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for _,line_range in lines_range_array_ do
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for _,range in line_range do
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range.Do();
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end;
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function TSPdfParagraphRange.SetExtraStyleId(style_id: string);
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begin
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extra_style_id_ := style_id;
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end;
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function TSPdfParagraphRange.RangesToLines(ppr: PPr);
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begin
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lines_range_array_ := array();
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i := 0;
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max_size := 0;
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max_y := 0;
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line_range := array();
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total_height := 0;
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while i <= length(range_array_)-1 do
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begin
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range := range_array_[i];
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if i = 0 then point_.X += ppr.Ind.FirstLine;
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if range is class(TSPdfTextRange) and range.RPr.Sz.Val > max_size then
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max_size := range.RPr.Sz.Val;
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if range.H > max_y then max_y := range.H;
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line_space := self.GetParagraphLineSpace(max_size, ppr.Spacing.Line);
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if self.CheckAndAddPage(point_.Y, max(line_space, range.H)) then
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total_height += point_.Y - sect_ware_.SectPr.PgMar.Bottom;
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range.X := point_.X - range.X;
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if_newline := point_.X + range.W - self.X > self.W + 1e-6;
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if if_newline and range.W < self.W then
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begin
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offset := line_space > max_y ? (line_space - max_size) / 2 + max_size - max_size / 5 : max_y;
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for _,item in line_range do
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begin
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item.Page := page_;
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item.Y := point_.Y - offset;
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end
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lines_range_array_[length(lines_range_array_)] := line_range;
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line_range := array();
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max_value := max(line_space, max_y);
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max_size := 0;
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max_y := 0;
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total_height += max_value;
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point_.Y -= max_value;
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point_.X := self.X;
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continue;
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end
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point_.X += range.W;
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line_range[length(line_range)] := range;
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i++;
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if i = length(range_array_) then
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begin
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offset := line_space > max_y ? (line_space - max_size) / 2 + max_size - max_size / 5 : max_y;
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for _,item in line_range do
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begin
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item.Page := page_;
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item.Y := point_.Y - offset;
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end
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lines_range_array_[length(lines_range_array_)] := line_range;
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max_value := max(line_space, max_y);
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total_height += max_value;
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point_.Y -= max_value;
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end
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end
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// self.SetLinesAlignment(lines_range_array, ppr);
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if not self.H then self.H := total_height;
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self.Y := point_.Y;
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end;
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function TSPdfParagraphRange.SetLinesAlignment(lines_range_array: tableArray; ppr: PPr);
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begin
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if length(lines_range_array) = 0 then return;
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idx := length(lines_range_array)-1;
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line := lines_range_array[idx];
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offset := 0;
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case ppr.Jc.Val of
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"center":
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begin
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first := line[0];
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last := line[length(line)-1];
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offset := (self.W - last.X + first.X - last.W) / 2;
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end
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"right":
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begin
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first := line[0];
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last := line[length(line)-1];
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offset := self.W - last.X + first.X - last.W;
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end
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end;
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if offset then
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for i:=0 to length(line)-1 do
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line[i].X += offset;
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end;
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function TSPdfParagraphRange.CheckAndAddPage(y: real; offset: real): boolean;
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begin
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if y - offset < sect_ware_.SectPr.PgMar.Bottom then
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begin
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page_ := docx_to_pdf_.AddPage(sect_ware_);
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point := docx_to_pdf_.GetCurrentPoint();
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point_.Y := point.Y;
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page_array_ := array(page_);
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return true;
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end
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return false;
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end;
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function TSPdfParagraphRange.GetUtf8CharLength(byte: string): integer;
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begin
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if (_and(ord(byte), 0b10000000)) = 0 then
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return 1;
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else if (_and(ord(byte), 0b11100000)) = 0b11000000 then
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return 2;
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else if (_and(ord(byte), 0b11110000)) = 0b11100000 then
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return 3;
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else if (_and(ord(byte), 0b11111000)) = 0b11110000 then
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return 4;
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end;
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function TSPdfParagraphRange.RToTextRange(r: R; ppr: PPr);
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begin
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rpr := new RPrUnitDecorator(r.RPr);
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text := r.T.Text;
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if ifString(text) then self.SplitTextToTextRange(text, rpr);
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end;
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function TSPdfParagraphRange.SplitTextToTextRange(text: string; rpr: RPr);
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begin
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pos := 1;
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while pos <= length(text) do
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begin
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num := self.GetUtf8CharLength(text[pos]);
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word := text[pos : pos+num-1];
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word := utf8ToAnsi(word);
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pos += num;
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font_name := rpr.RFonts.EastAsia ? rpr.RFonts.EastAsia : rpr.RFonts.Ascii;
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font_obj := docx_to_pdf_.Font.GetFont(font_name, 0, 0);
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if not rpr.Sz.Val then rpr.Sz.Val := rpr.SzCs.Val ? rpr.SzCs.Val : docx_to_pdf_.Font.GetDefaultSz();
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page_.SetFontAndSize(font_obj, rpr.Sz.Val);
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word_width := page_.TextWidth(word);
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text_range := new TSPdfTextRange();
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text_range.RPr := rpr;
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text_range.Text := word;
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text_range.Font := font_obj;
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text_range.W := word_width;
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text_range.H := 0;
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text_range.X := 0;
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text_range.Y := 0;
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range_array_[length(range_array_)] := text_range;
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end
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end;
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function TSPdfParagraphRange.RToDrawingRange(r: R; ppr: PPr);
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begin
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xfrm := new XfrmUnitDecorator(r.Drawing._Inline.Graphic.GraphicData.Pic.SpPr.Xfrm);
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rels_adapter := class(TSPdfSingletonKit).GetComponent(docx_components_, "document_rels_adapter");
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id := r.Drawing._Inline.Graphic.GraphicData.Pic.BlipFill.Blip.Embed;
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rel := rels_adapter.Id(id);
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image_path := "word/" + rel.Target;
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image := docx_components_.Zip().Get(image_path);
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data := image.Data();
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image_path := docx_to_pdf_.GetTempPath(image_path);
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writeFile(rwBinary(), "", image_path, 0, length(data)-1, data);
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image := nil;
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case self.GetImageFileType(data) of
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"png":
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image := docx_to_pdf_.GetPdf().LoadPngImageFromFile("", image_path);
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"jpg":
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image := docx_to_pdf_.GetPdf().LoadJpegImageFromFile("", image_path);
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end;
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image_range := new TSPdfImageRange();
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image_range.Image := image;
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image_range.X := xfrm.Off.X;
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image_range.Y := xfrm.Off.Y;
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image_range.W := xfrm.Ext.CX;
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image_range.H := xfrm.Ext.CY;
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fileDelete("", image_path);
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range_array_[length(range_array_)] := image_range;
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end;
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function TSPdfParagraphRange.GetImageFileType(data: binary): string;
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begin
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stream := new TMemoryStream();
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size := length(data);
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stream.Write(data[0:size-1], size);
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def := array(
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('name': 'png', 'position': 0, 'value': array(0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A)),
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('name': 'jpg', 'position': 0, 'value': array(0xFF, 0xD8)),
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);
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for i:=0 to length(def)-1 do
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begin
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value := def[i]['value'];
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stream.Seek(def[i]['position']);
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for j:=0 to length(value)-1 do
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begin
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r := 0;
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stream.Read(r, 1);
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if r <> value[j] then break;
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if j = length(value)-1 then return def[i]['name'];
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end
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end
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return '';
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end;
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function TSPdfParagraphRange.GetParagraphLineSpace(size: real; line: integer): real;
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begin
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if not line then line := 12;
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lines := roundto(line / 12, -1);
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multi := ceil(size / sect_ware_.BaseSize) * lines;
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return sect_ware_.SectPr.DocGrid.LinePitch * multi;
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end;
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function TSPdfParagraphRange.SetPPr(var ppr: PPr);
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begin
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new_ppr := new PPr();
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styles := class(TSPdfSingletonKit).GetComponent(docx_components_, "styles");
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new_ppr.Copy(styles.DocDefaults.PPrDefault.PPr);
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new_ppr.RPr.Copy(styles.DocDefaults.RPrDefault.RPr);
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self.SetPPrByStyleId(new_ppr, extra_style_id_);
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self.SetPPrByStyleId(new_ppr, ppr.PStyle.Val);
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new_ppr.Copy(ppr);
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ppr.Copy(new_ppr);
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end;
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function TSPdfParagraphRange.SetPPrByStyleId(var ppr: PPr; style_id: string);
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begin
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styles := class(TSPdfSingletonKit).GetComponent(docx_components_, "styles_adapter");
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style := styles.StyleId(style_id);
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if ifObj(style) then
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begin
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based_on := style.BasedOn.Val;
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self.SetPPrByStyleId(ppr, based_on);
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ppr.Copy(style.PPr);
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ppr.RPr.Copy(style.RPr);
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end
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end;
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function TSPdfParagraphRange.SetRPr(var rpr; ppr: PPr);
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begin
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// rpr，先继承ppr，再继承样式，最后继承自己
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new_rpr := new RPr();
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style_id := rpr.RStyle.Val;
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new_rpr.Copy(ppr.RPr);
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self.SetRPrByStyleId(new_rpr, style_id);
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new_rpr.Copy(rpr);
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rpr.Copy(new_rpr);
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end;
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function TSPdfParagraphRange.SetRPrByStyleId(var rpr: RPr; style_id: string);
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begin
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styles := class(TSPdfSingletonKit).GetComponent(docx_components_, "styles_adapter");
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style := styles.StyleId(style_id);
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if ifObj(style) then
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begin
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based_on := style.BasedOn.Val;
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self.SetRPrByStyleId(rpr, based_on);
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rpr.Copy(style.RPr);
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end
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end;
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function TSPdfParagraphRange.SetLvlText();
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begin
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numbering_ware := class(TSPdfSingletonKit).GetComponent(docx_components_, "numbering_ware");
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if not ifObj(numbering_ware) then return;
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[lvl_text, lvl] := numbering_ware.GetNumberLvl(paragraph_.PPr);
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if lvl_text = "" and ifnil(lvl) then return;
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self.SetRPr(lvl.RPr, paragraph_.PPr);
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rpr := new RPrUnitDecorator(lvl.RPr);
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self.SplitTextToTextRange(lvl_text, rpr);
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end;
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@@ -0,0 +1,13 @@
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type TSPdfRectRange = class(TSPdfAbstractRange)
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public
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function Do();override;
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public
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Page: PdfPage;
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end;
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function TSPdfRectRange.Do();override;
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begin
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self.Page.SetRGBStroke(1.0, 0.0, 0.0);
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self.Page.Rectangle(self.X, self.Y - self.H, self.W, self.H);
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self.Page.Stroke();
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end;
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@@ -0,0 +1,177 @@
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type TSPdfTableRange = class(TSPdfAbstractRange)
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public
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function Create(docx_to_pdf: TSDocxToPdf; components: Components; sect_ware: TSSectWare; paragraph: P);
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function Calc(): tableArray;
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private
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function ProcessTrData(grid_cols: array of GridCol; tr: Tr; tbl_pr: TblPr): array of TSPdfAbstractRange;
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function ResetCoordinates(tbl_pr: TblPr; grid_cols: array of GridCol);
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function SetTblPr(tbl_pr: TblPr);
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function SetTblPrByStyleId(var tbl_pr: TblPr; style_id: string);
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function SetTrPr(var tr_pr: TrPr);
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function SetTrPrByStyleId(var tr_pr: TrPr; style_id: string);
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function SetTcPr(var tc_pr: TcPr);
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function SetTcPrByStyleId(var tc_pr: TcPr; style_id: string);
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private
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docx_to_pdf_: TSDocxToPdf;
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docx_components_: Components;
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sect_ware_: TSSectWare;
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table_: Tbl;
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range_array_: array of TSPdfAbstractRange;
|
||||
page_: PdfPage;
|
||||
point_: TSPoint;
|
||||
end;
|
||||
|
||||
function TSPdfTableRange.Create(docx_to_pdf: TSDocxToPdf; components: Components; sect_ware: TSSectWare; table: Tbl);
|
||||
begin
|
||||
docx_to_pdf_ := docx_to_pdf;
|
||||
docx_components_ := Components;
|
||||
sect_ware_ := sect_ware;
|
||||
table_ := table;
|
||||
page_ := docx_to_pdf_.GetCurrentPage();
|
||||
range_array_ := array();
|
||||
point_ := new TSPoint(); // 动态记录段落的坐标位置
|
||||
end;
|
||||
|
||||
function TSPdfTableRange.Calc(): tableArray;
|
||||
begin
|
||||
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);
|
||||
point_.X := self.X;
|
||||
point_.Y := self.Y;
|
||||
// 如果是根据内容自适应，应该计算并调整grid_cols的值
|
||||
trs := table_.Trs();
|
||||
matrix := array();
|
||||
for i,tr in trs do
|
||||
matrix[i] := self.ProcessTrData(grid_cols, tr, tbl_pr);
|
||||
return matrix;
|
||||
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);
|
||||
tcs := tr.Tcs();
|
||||
rows_range_array := array();
|
||||
for _,tc in tcs do
|
||||
begin
|
||||
elements := tc.Elements();
|
||||
rect_range := new TSPdfRectRange();
|
||||
rect_range.X := point_.X;
|
||||
rect_range.Y := point_.Y;
|
||||
rect_range.W := grid_col.W;
|
||||
rect_range.H := 100;
|
||||
rows_range_array[length(rows_range_array)] := rect_range;
|
||||
for _,element in elements do
|
||||
begin
|
||||
range := nil;
|
||||
if element.LocalName = "p" then
|
||||
begin
|
||||
range := new TSPdfParagraphRange(docx_to_pdf_, docx_components_, sect_ware_, element);
|
||||
range.SetExtraStyleId(tbl_pr.TblStyle.Val);
|
||||
end
|
||||
else if element.LocalName = "tbl" then
|
||||
begin
|
||||
range := new TSPdfTableRange(docx_to_pdf_, docx_components_, sect_ware_, element);
|
||||
end
|
||||
if ifObj(range) then
|
||||
begin
|
||||
range.X := point_.X - tbl_pr.TblCellMar.Left.W;
|
||||
range.Y := point_.Y - tbl_pr.TblCellMar.Top.W;
|
||||
range.W := grid_col.W - tbl_pr.TblCellMar.Right.W;
|
||||
range.H := nil;
|
||||
ret := range.Calc();
|
||||
point_.Y := range.Y;
|
||||
point_.X += grid_col.W;
|
||||
rows_range_array[length(rows_range_array)] := range;
|
||||
end
|
||||
end
|
||||
end
|
||||
return rows_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.W;
|
||||
case tbl_pr.jc.Val of
|
||||
"center":
|
||||
begin
|
||||
offset := diff/2;
|
||||
self.X -= offset;
|
||||
end
|
||||
"right":
|
||||
begin
|
||||
self.X -= diff;
|
||||
end
|
||||
end;
|
||||
self.W := total_width;
|
||||
end;
|
||||
|
||||
function TSPdfTableRange.SetTblPr(var tbl_pr: TblPr);
|
||||
begin
|
||||
new_tbl_pr := new TblPr();
|
||||
tbl_pr.TblStyle.XmlNode.print;
|
||||
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 := class(TSPdfSingletonKit).GetComponent(docx_components_, "styles_adapter");
|
||||
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 := class(TSPdfSingletonKit).GetComponent(docx_components_, "styles_adapter");
|
||||
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 := class(TSPdfSingletonKit).GetComponent(docx_components_, "styles_adapter");
|
||||
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;
|
||||
@@ -0,0 +1,33 @@
|
||||
type TSPdfTextRange = class(TSPdfAbstractRange)
|
||||
uses TSColorToolKit;
|
||||
public
|
||||
function Do();override;
|
||||
public
|
||||
RPr: RPr;
|
||||
Text: string;
|
||||
Font: PdfFont;
|
||||
Page: PdfPage;
|
||||
end;
|
||||
|
||||
function TSPdfTextRange.Do();
|
||||
begin
|
||||
// println("text = {}, x = {}, y = {}, w = {}, sz = {}", ansiToUtf8(text), x, y, w);
|
||||
[r, g, b] := array(0, 0, 0);
|
||||
if self.RPr.Color.Val then [r, g, b] := TSColorToolKit.HexToRGB(self.RPr.Color.Val);
|
||||
self.Page.SetRGBFill(r / 255, g / 255, b / 255);
|
||||
self.Page.SetFontAndSize(self.Font, self.RPr.Sz.Val);
|
||||
self.Page.BeginText();
|
||||
self.Page.TextOut(self.X, self.Y, self.Text);
|
||||
self.Page.EndText();
|
||||
self.Page.SetRGBFill(0, 0, 0);
|
||||
|
||||
{$DEFINE WordToPdfTEST}
|
||||
{$IFDEF WordToPdfTEST}
|
||||
self.Page.SetLineWidth(0.5);
|
||||
self.Page.SetGrayStroke(0.5);
|
||||
self.Page.MoveTo(0, self.Y);
|
||||
self.Page.LineTo(90, self.Y);
|
||||
self.Page.Stroke();
|
||||
{$ENDIF}
|
||||
end;
|
||||
|
||||
Reference in New Issue
Block a user