476 lines
16 KiB
Plaintext
476 lines
16 KiB
Plaintext
type TSDocxToPdf = class
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uses TSPdfEnumerations, DocxML, DocxMLAdapter, DocxMLUnitDecorator, DTPModules, DTPUtils, DTPAdvancedRanges;
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public
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function Create(alias: string; file: string);
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function Destroy();
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function SaveToFile(alias: string; file: string): integer;
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function Transform();
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function GetCachePath(image_path: string): string;
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function GetCurrentXmlFile(): string;
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function GetCurrentNoteModule(): NoteModule;
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function AddPage(flag: boolean): Page;
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function ProcessNumpages();
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// docx页码扩展
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function UpdateDocxPageNumPages();
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function SaveDocxFile();overload;
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function SaveDocxFile(alias: string; file: string);overload;
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property PdfFile read pdf_;
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property Font read font_module_;
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property PageManager read page_manager_module_;
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property Toc read toc_module_;
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property Note read note_module_;
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private
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function InitDocxComponents(alias: string; file: string);
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function InitCachePath(file: string);
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function InitPdfEncoder();
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function InitSectModule();
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function AllocateElementsToSectModule();
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function ClassifyCols(var point: Point; cols: Cols);
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function SetHdr(type: string);
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function SetFtr(type: string);
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function TransformP(paragraph: P; x: real; y: real; w: real; lb: real): ParagraphRange;
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function TransformTbl(table: Tbl; x: real; y: real; w: real; lb: real): TableRange;
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function TransformSdt(sdt: Sdt; x: real; y: real; w: real; lb: real): array of ParagraphRange;
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private
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pdf_: PdfFile;
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docx_components_module_: DocxComponentsModule; // TSDocxComponentsModule
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cache_path_: string; // 临时目录，用来存放临时文件
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font_module_: FontModule; // 字体模块
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sect_module_array_: array of SectModule; // 页面布局模块数组
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current_sect_module_: SectModule;
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current_sect_pr_adapter_: SectPrAdapter;
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page_manager_module_: PageManagerModule;
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current_page_: Page;
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toc_module_: TocModule; // 目录模块
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note_module_: NoteModule; // 脚注/尾注
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range_page_number_array_: tableArray;
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xml_file_: string;
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even_and_odd_flag_: boolean;
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// 回写docx
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docx_page_arr_: tableArray;
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update_docx_pages_: boolean;
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end;
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function TSDocxToPdf.Create(alias: string; file: string);
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begin
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pdf_ := new PdfFile();
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pdf_.SetCompressionMode(TSPdfEnumerations.COMP_ALL);
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font_module_ := new DTPModules.FontModule(pdf_);
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{self.}InitPdfEncoder();
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{self.}InitDocxComponents(alias, file);
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{self.}InitCachePath(file);
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{self.}InitSectModule();
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current_page_ := nil;
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page_manager_module_ := new DTPModules.PageManagerModule(pdf_);
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toc_module_ := new DTPModules.TocModule();
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range_page_number_array_ := array();
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xml_file_ := "document.xml";
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settings := docx_components_module_.Settings;
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settings.XmlChildEvenAndOddHeaders.Deserialize();
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even_and_odd_flag_ := settings.EvenAndOddHeaders ? true : false;
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note_module_ := new ;
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// 回写docx
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docx_page_arr_ := array();
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update_docx_pages_ := false;
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end;
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function TSDocxToPdf.Destroy();
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begin
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removeDir("", cache_path_);
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end;
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function TSDocxToPdf.SaveToFile(alias: string; file: string): integer;
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begin
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return pdf_.SaveToFile(alias, file);
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end;
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function TSDocxToPdf.Transform();
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begin
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for _,sect_module in sect_module_array_ do
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begin
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if current_sect_module_ <> sect_module then
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begin
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current_sect_module_ := sect_module;
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current_sect_pr_adapter_ := new SectPrAdapter(current_sect_module_.SectPr.GetObject());
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{self.}AddPage(true);
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xml_file_ := "document.xml";
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end
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// 分栏
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elements := sect_module.Elements();
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cols := current_sect_module_.SectPr.Cols;
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if cols.Num > 1 then
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begin
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columns := {self.}ClassifyCols(current_page_.TextPoint, cols);
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end
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else begin
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w := current_page_.SectPr.PgSz.W - current_page_.SectPr.PgMar.Right - current_page_.SectPr.PgMar.Left;
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lb := max(current_page_.SectPr.PgMar.Bottom, current_page_.FtrPoint.Y);
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for _,element in elements do
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begin
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x := current_page_.TextPoint.X;
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y := current_page_.TextPoint.Y;
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// if _ = 266 then break;
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// if _ = 20 then
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// println("_ = {}, xml_file_ = {}, error = {}", _, xml_file_, pdf_.GetError());
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range := nil;
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if element.LocalName = "p" then range := {self.}TransformP(element, x, y, w, lb);
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else if element.LocalName = "tbl" then range := {self.}TransformTbl(element, x, y, w, lb);
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else if element.LocalName = "sdt" then {self.}TransformSdt(element, x, y, w, lb);
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if ifObj(range) then
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begin
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current_page_.TextPoint.Y := range.EndY;
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range.Do();
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end
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end
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end
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end
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{self.}ProcessNumpages();
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end;
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function TSDocxToPdf.GetCachePath(image_path: string): string;
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begin
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return cache_path_ + extractFileName(image_path);
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end;
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function TSDocxToPdf.GetCurrentXmlFile(): string;
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begin
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return xml_file_;
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end;
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function TSDocxToPdf.InitPdfEncoder();
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begin
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pdf_.UseCNSFonts();
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pdf_.UseCNSEncodings();
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// pdf_.UseUTFEncodings();
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end;
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function TSDocxToPdf.InitDocxComponents(alias: string; file: string);
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begin
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docx_components_module_ := new DTPModules.DocxComponentsModule();
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[err, msg] := docx_components_module_.Open(alias, file, nil);
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if err then raise "Open file error.";
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end;
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function TSDocxToPdf.InitCachePath(file: string);
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begin
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path := format("%s_%s", extractFileName(file), formatDatetime("YYYYMMDDHHNNSSZZZ", now()));
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cache_dir := format("%s/funcext/PdfConverter/.cache", extractFileDir(sysExecName()));
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createDir("", cache_dir);
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cache_path_ := format("%s/%s/", cache_dir, path);
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createDir("", cache_path_);
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end;
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function TSDocxToPdf.InitSectModule();
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begin
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sect_module_array_ := array();
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current_sect_module_ := nil;
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current_sect_pr_adapter_ := nil;
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document := docx_components_module_.Document;
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document.Deserialize();
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{self.}AllocateElementsToSectModule();
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end;
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function TSDocxToPdf.AllocateElementsToSectModule();
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begin
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elements := docx_components_module_.Document.Body.Elements();
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module := new DTPModules.SectModule();
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fp := function(module, sect);
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begin
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sect := new SectPrUnitDecorator(sect);
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sect.PgSz.Orient := sect.PgSz.Orient ? "portrait" : "landscape";
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sect.Type.Val := sect.Type.Val ?: "nextPage";
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module.SectPr := sect;
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end
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for i:=0 to length(elements)-1 do
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begin
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element := elements[i];
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module.AddElement(element);
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if element.LocalName = "p" and ifObj(element.PPr.SectPr) then
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begin
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##fp(module, element.PPr.SectPr);
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sect_module_array_[length(sect_module_array_)] := module;
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module := new DTPModules.SectModule();
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end
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else if element.LocalName = "sectPr" and i = length(elements)-1 then
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begin
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##fp(module, element);
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sect_module_array_[length(sect_module_array_)] := module;
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end
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end
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// println("sect_module_array_ = {}", sect_module_array_);
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end;
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function TSDocxToPdf.AddPage(flag: boolean = false): Page;
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begin
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if current_sect_module_.SectPr.Type.Val = "continuous" and page_manager_module_.Count <> 0 then return;
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page := page_manager_module_.NewPage();
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page.SectPr := current_sect_module_.SectPr;
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page.Number := flag ? ifnil(current_sect_module_.SectPr.PgNumType.Start) ? 1 : current_sect_module_.SectPr.PgNumType.Start : page_manager_module_[page_manager_module_.Count() - 2].Number + 1;
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page.BaseSize := round(page.SectPr.DocGrid.LinePitch * 0.75);
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// 正文、页眉页脚坐标
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// 页眉：从上往下，不需要调整
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page.HdrPoint.X := page.SectPr.PgMar.Left;
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page.HdrPoint.Y := page.SectPr.PgSz.H - page.SectPr.PgMar.Header;
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// 页脚：从下往上，需要调整
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page.FtrPoint.X := page.SectPr.PgMar.Left;
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page.FtrPoint.Y := page.SectPr.PgSz.H;
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// 正文：运行完页眉页脚后需要再次计算
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page.TextPoint.X := page.SectPr.PgMar.Left;
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page.TextPoint.Y := page.SectPr.PgSz.H - max(page.SectPr.PgMar.Top, page.SectPr.PgMar.Header);
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current_page_ := page;
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// println("TextPoint.X = {}, TextPoint.Y = {}", current_page_.TextPoint.X, current_page_.TextPoint.Y);
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// println("len = {}, Number = {}", page_manager_module_.Count(), current_page_.Number);
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// 页眉页脚
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if current_sect_module_.SectPr.TitlePg and current_page_.Index = 0 then
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type_name := "first";
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else if not even_and_odd_flag_ then
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type_name := "default";
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else if not odd(current_page_.Index) then
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type_name := "even"
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else
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type_name := "default";
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bk_file := xml_file_;
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{self.}SetHdr(type_name);
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{self.}SetFtr(type_name);
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xml_file_ := bk_file;
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// println("W = {}, H = {}", current_page_.SectPr.PgSz.W, current_page_.SectPr.PgSz.H);
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// println("Top = {}, Bottom = {}", current_page_.SectPr.PgMar.Top, current_page_.SectPr.PgMar.Bottom);
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// println("Left = {}, Right = {}", current_page_.SectPr.PgMar.Left, current_page_.SectPr.PgMar.Right);
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// println("Header = {}", current_page_.SectPr.PgMar.Header);
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// println("TextPoint.X = {}, TextPoint.Y = {}", current_page_.TextPoint.X, current_page_.TextPoint.Y);
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// println("HdrPoint.X = {}, HdrPoint.Y = {}", current_page_.HdrPoint.X, current_page_.HdrPoint.Y);
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// println("FtrPoint.X = {}, FtrPoint.Y = {}", current_page_.FtrPoint.X, current_page_.FtrPoint.Y);
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return current_page_;
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end;
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function TSDocxToPdf.SetFtr(type: string);
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begin
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footer_reference := current_sect_pr_adapter_.GetFooterReferenceByType(type);
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ftr_range := array();
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if ifObj(footer_reference) then
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begin
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rels_adapter := docx_components_module_.GetDocumentRelsAdapter();
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rel := rels_adapter.GetRelationshipById(footer_reference.Id);
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w := current_page_.SectPr.PgSz.W - current_page_.SectPr.PgMar.Right - current_page_.SectPr.PgMar.Left;
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lb := 0;
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obj := docx_components_module_.GetFtr(rel.Target);
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xml_file_ := rel.Target;
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elements := obj.Elements();
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for _,element in elements do
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begin
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x := current_page_.FtrPoint.X;
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y := current_page_.FtrPoint.Y;
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range := nil;
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if element.LocalName = "p" then range := {self.}TransformP(element, x, y, w, lb);
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if ifObj(range) then
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begin
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current_page_.FtrPoint.Y := range.EndY;
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ftr_range[length(ftr_range)] := range;
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end
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end
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end
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last_range := ftr_range[length(ftr_range)-1];
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y_offset := last_range.EndY - current_page_.SectPr.PgMar.Bottom;
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height := 0;
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for _,range in ftr_range do
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begin
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range.Offset(0, y_offset);
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range.Do();
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height += range.DynamicHeight;
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end
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current_page_.FtrPoint.Y := current_page_.SectPr.PgMar.Bottom + height;
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end;
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function TSDocxToPdf.SetHdr(type: string);
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begin
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header_reference := current_sect_pr_adapter_.GetHeaderReferenceByType(type);
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if ifObj(header_reference) then
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begin
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rels_adapter := docx_components_module_.GetDocumentRelsAdapter();
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rel := rels_adapter.GetRelationshipById(header_reference.Id);
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w := current_page_.SectPr.PgSz.W - current_page_.SectPr.PgMar.Right - current_page_.SectPr.PgMar.Left;
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lb := 0;
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obj := docx_components_module_.GetHdr(rel.Target);
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xml_file_ := rel.Target;
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elements := obj.Elements();
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for _,element in elements do
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begin
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x := current_page_.HdrPoint.X;
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y := current_page_.HdrPoint.Y;
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range := nil;
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if element.LocalName = "p" then range := {self.}TransformP(element, x, y, w, lb);
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if ifObj(range) then
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begin
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current_page_.HdrPoint.Y := range.EndY;
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range.Do();
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current_page_.TextPoint.Y := min(current_page_.TextPoint.Y, range.EndY);
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end
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end
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end
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end;
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function TSDocxToPdf.TransformP(paragraph: P; x: real; y: real; w: real; lb: real): ParagraphRange;
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begin
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range := new ParagraphRange(self, current_page_, docx_components_module_, paragraph);
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range.StartX := x;
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range.StartY := y;
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range.Width := w;
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range.LowerBound := lb;
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range.Parent := self;
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r := range.Calc();
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if r then return range;
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else range_page_number_array_[length(range_page_number_array_)] := range;
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return nil;
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end;
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function TSDocxToPdf.TransformTbl(table: Tbl; x: real; y: real; w: real; lb: real): TableRange;
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begin
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range := new TableRange(self, current_page_, docx_components_module_, table);
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range.StartX := x;
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range.StartY := y;
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range.Width := w;
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range.LowerBound := lb;
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range.Parent := self;
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range.Calc();
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return range;
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end;
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function TSDocxToPdf.TransformSdt(sdt: Sdt; x: real; y: real; w: real; lb: real): array of ParagraphRange;
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begin
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ps := sdt.SdtContent.Ps();
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arr := array();
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for _,p in ps do
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begin
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range := {self.}TransformP(p, x, y, w, lb);
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if ifObj(range) then arr[length(arr)] := range;
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end
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return arr;
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end;
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function TSDocxToPdf.ProcessNumpages();
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begin
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nums := page_manager_module_[page_manager_module_.Count() - 1].Number;
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for _,range in range_page_number_array_ do
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begin
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range.SetNumPages(nums);
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range.RangesToLines();
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range.Offset(0, current_page_.SectPr.PgSz.H - current_page_.SectPr.PgMar.Bottom);
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range.Do();
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end
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end;
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function TSDocxToPdf.UpdateDocxPageNumPages();
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begin
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toc_module_.UpdateDocxNumPages();
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end;
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function TSDocxToPdf.SaveDocxFile();overload;
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begin
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return docx_components_module_.Save();
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end;
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function TSDocxToPdf.SaveDocxFile(alias: string; file: string);overload;
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begin
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return docx_components_module_.SaveAs(alias, file);
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end;
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function TSDocxToPdf.GetCurrentNoteModule(): NoteModule;
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begin
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if ifnil(note_module_) then note_module_ := new NoteModule(current_sect_module_);
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return note_module_;
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end;
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function TSDocxToPdf.ClassifyCols(var point: Point; cols: Cols);
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begin
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bk_page := current_page_;
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columns := array();
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x := point.X;
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y := point.Y;
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w := current_page_.SectPr.PgSz.W - current_page_.SectPr.PgMar.Right - current_page_.SectPr.PgMar.Left;
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lb := current_page_.SectPr.PgMar.Bottom;
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w_array := array();
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ccols := cols.Cols();
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for i:=0 to cols.Num-1 do
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begin
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rw := 0;
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if cols.EqualWidth = "0" then
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begin
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rw := ccols[i].W;
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if i > 0 then x += ccols[i-1].W + ccols[i-1].Space;
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end
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else begin
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rw := w / 3;
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x := point.X + i * rw + i * cols.Space;
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end
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range := new ColumnRange(self, current_page_, docx_components_module_);
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range.StartX := x;
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range.StartY := y;
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range.Width := rw;
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range.LowerBound := lb;
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columns[length(columns)] := range;
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end
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i := 0;
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elements := current_sect_module_.Elements();
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range := columns[0];
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for _,element in elements do
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begin
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if element.LocalName = "p" then
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begin
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p := new P();
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sub_elements := element.Elements();
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for _,sub in sub_elements do
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begin
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p.AppendChild(sub);
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if sub.LocalName = "r" and sub.Br.Type = "column" then
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begin
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range.AddElement(p);
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p := new P();
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p.PPr.Copy(element.PPr);
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range := columns[++i];
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end
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end
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range.AddElement(p);
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end
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else begin
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range.AddElement(element);
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end
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end
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pg := nil;
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max_y := nil;
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for _,column in columns do
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begin
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column.Do();
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page := column.GetLastPage();
|
|
if ifnil(pg) then pg := page;
|
|
if ifnil(max_y) then max_y := range.EndY;
|
|
if page.Index > pg.Index then max_y := range.EndY;
|
|
else if page.Index = pg.Index and max_y > range.EndY then max_y := range.EndY;
|
|
end
|
|
current_page_ := bk_page;
|
|
point.Y := max_y;
|
|
end;
|