490 lines
11 KiB
Plaintext
490 lines
11 KiB
Plaintext
Type TSWdRange = Class
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public
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Function Create(rootNode, startP, endP);overload;
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Function Create(rootNode, targetNode);overload;
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Function Init();
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Function Operator[](index);
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Function Run();
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Function Refresh();
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Function GetStart();
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Function GetEnd();
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Function SplitRun();overload;
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Function SplitRun(index);overload;
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Function Clear(deleteAll);
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Function Size();
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Function Print();
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Begin
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println("data = {}", data_);
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End;
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private
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Function FindRangeByPosition(startNode);
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Function FindRangeByNode(startNode);
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Function AddEntirety(len, node);
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Function AddRunInfo(runNode, tParagraph);
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Function AddRunInfo2(runNode, tParagraph);
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Function ParagraphRange(node);
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Function CalcPosition(startNode);
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public
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data_; // 管理range结构的数组，字段如下
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// lsplit: 左边丢弃的字符数
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// rsplit: 右边丢弃的字符数
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// tparagraph: TOfficeObj("TParagraph")对象
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// trun: TOfficeObj("TRun")对象
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// text: 文本内容
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// entirety: 是否是完整的段落/表格/单元格
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// -- 以便在对range操作时候知道操作一个段落还是一个run，比如range.shading range.Border
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private
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start_position_; // 开始位置
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end_position_; // 结束位置， 开始与结束遵循左闭右开原则
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cur_position_; // 当前位置
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root_node_; // 根节点
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target_node_; // 目标节点，使用paragraph.Range，table.Range, cell.Range时用
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split_flag_; // 切割标志
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proxy_; // 代理类，提供外部对数组data_的读写
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End;
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Type Proxy = Class
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public
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Function Create(obj);
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property TRun read ReadTRun write WriteTRun;
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property TParagraph read ReadTParagraph write WriteTParagraph;
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property Entirety read ReadEntirety write WriteEntirety;
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Function WriteEntirety(value);
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Function ReadEntirety();
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Function WriteTParagraph(value);
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Function ReadTParagraph();
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Function WriteTRun(value);
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Function ReadTRun();
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[weakref]obj_;
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index_;
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End;
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Function Proxy.Create(obj);
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Begin
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obj_ := obj;
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index_ := nil;
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End;
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Function Proxy.WriteEntirety(value);
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Begin
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obj_.data_[index_]["entirety"] := value;
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End;
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Function Proxy.ReadEntirety();
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Begin
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return obj_.data_[index_]["entirety"];
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End;
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Function Proxy.WriteTParagraph(value);
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Begin
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obj_.data_[index_]["tparagraph"] := value;
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End;
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Function Proxy.ReadTParagraph();
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Begin
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return obj_.data_[index_]["tparagraph"];
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End;
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Function Proxy.WriteTRun(value);
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Begin
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obj_.data_[index_]["trun"] := value;
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End;
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Function Proxy.ReadTRun();
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Begin
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return obj_.data_[index_]["trun"];
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End;
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// TSWdRange实现
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Function TSWdRange.Create(rootNode, startP, endP);overload;
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Begin
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root_node_ := rootNode;
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start_position_ := startP;
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end_position_ := endP = -1 ? INF : endP;
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target_node_ := nil;
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self.Init();
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End;
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Function TSWdRange.Create(rootNode, targetNode);overload;
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Begin
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root_node_ := rootNode;
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target_node_ := targetNode;
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start_position_ := nil;
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end_position_ := nil;
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self.Init();
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End;
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Function TSWdRange.Init();
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Begin
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cur_position_ := 0;
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split_flag_ := false;
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data_ := array();
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self.Run();
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proxy_ := new Proxy(self);
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End;
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Function Operator TSWdRange.[](index);
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Begin
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proxy_.index_ := index;
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return proxy_;
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End;
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Function TSWdRange.Run();
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Begin
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if target_node_ then
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self.FindRangeByNode(target_node_);
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else
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self.FindRangeByPosition(root_node_);
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End;
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Function TSWdRange.Refresh();
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Begin
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if target_node_ then self.FindRangeByNode(target_node_);
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End;
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Function TSWdRange.Size();
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Begin
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return length(data_);
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End;
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Function TSWdRange.GetStart();
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Begin
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if ifnil(start_position_) then self.CalcPosition(root_node_);
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return start_position_;
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End;
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Function TSWdRange.GetEnd();
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Begin
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if ifnil(end_position_) then self.CalcPosition(root_node_);
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return end_position_;
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End;
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Function TSWdRange.SplitRun();overload;
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Begin
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if split_flag_ then return;
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for i:=0 to length(data_)-1 do
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self.SplitRun(i);
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split_flag_ := true;
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End;
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Function TSWdRange.SplitRun(index);overload;
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Begin
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if ifnil(data_[index]["lsplit"]) and ifnil(data_[index]["rsplit"]) then return data_[index];
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paragraph := data_[index]["tparagraph"];
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run := data_[index]["trun"];
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text := data_[index]["text"];
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if data_[index]["lsplit"] then // 分割左边
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begin
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lpos := data_[index]["lsplit"];
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run.SetText(AnsiToUtf8(leftstr(text, lpos)));
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new_run := paragraph.AppendRun(run);
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new_run.CopyFontFormat(run);
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text := rightstr(text, lengthw(text)-lpos);
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new_run.SetText(AnsiToUtf8(text));
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data_[index]["text"] := text;
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data_[index]["lsplit"] := nil;
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run := new_run;
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end
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if data_[index]["rsplit"] then // 分割右边的run
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begin
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rpos := data_[index]["rsplit"];
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new_run := paragraph.AppendRun(run);
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new_run.CopyFontFormat(run);
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new_run.SetText(AnsiToUtf8(rightstr(text, rpos)));
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new_text := AnsiToUtf8(leftstr(text, lengthw(text) - rpos));
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run.SetText(new_text);
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data_[index]["rsplit"] := nil;
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data_[index]["text"] := new_text;
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end
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data_[index]["trun"] := run;
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End;
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Function TSWdRange.Clear(deleteAll);
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Begin
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self.SplitRun();
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arr := array();
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first := data_[0];
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para := first["tparagraph"];
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if deleteAll then arr[length(arr)] := para.Root();
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for i:=1 to length(data_)-1 do
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begin
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if data_[i]["tparagraph"] <> para then
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begin
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arr[length(arr)] := data_[i]["tparagraph"].Root();
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end
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else begin
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p := data_[i]["tparagraph"];
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r := data_[i]["trun"];
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if ifObj(r.Root()) then p.Root().DeleteChild(r.Root());
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end
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end
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first["trun"].ClearText();
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data_ := array();
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if not deleteAll then data_[0] := first;
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return arr;
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End;
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Function TSWdRange.FindRangeByPosition(startNode);
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Begin
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node := startNode.FirstChildElement();
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while ifObj(node) do
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begin
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len := length(data_); // 标记完整段落/表格的起始位置
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case node.GetName() of
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"w:p":
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begin
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paragraph_obj := TOfficeObj("TParagraph");
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paragraph_obj.Init(node);
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if paragraph_obj.Empty() then // 空段落
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begin
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self.AddRunInfo(nil, paragraph_obj);
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end
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else begin
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sub_node := node.FirstChildElement();
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while ifObj(sub_node) do
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begin
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case sub_node.GetName() of
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"w:r":
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begin
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self.AddRunInfo(sub_node, paragraph_obj);
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if cur_position_ >= end_position_ then return 1;
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end
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"w:ins", "w:del":
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begin
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run_node := sub_node.FirstChildElement("w:r");
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while ifObj(run_node) do
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begin
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self.AddRunInfo(run_node, paragraph_obj);
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if cur_position_ >= end_position_ then return 1;
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run_node := run_node.NextElement("w:r");
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end
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end
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end;
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sub_node := sub_node.NextElement();
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end
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// 完整段落
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cur_position_ += 1;
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end
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end
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"w:tbl":
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begin
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tr := node.FirstChildElement("w:tr");
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while ifObj(tr) do
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begin
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tc := tr.FirstChildElement("w:tc");
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while ifObj(tc) do
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begin
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cell_len := length(data_);
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flag := self.FindRangeByPosition(tc);
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if flag then return 1;
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if cur_position_ >= end_position_ then return 1;
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self.AddEntirety(cell_len, tc);
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tc := tc.NextElement("w:tc");
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end
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cur_position_ += 1;
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if cur_position_ >= end_position_ then return 1;
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tr := tr.NextElement("w:tr");
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end
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end
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end;
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self.AddEntirety(len, node);
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if cur_position_ >= end_position_ then return 1;
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node := node.NextElement();
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end
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End;
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Function TSWdRange.AddEntirety(len, node);
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Begin
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for i:=len to length(data_)-1 do
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data_[i]["entirety"] := node;
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End;
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Function TSWdRange.AddRunInfo(runNode, tParagraph);
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Begin
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run_obj := TOfficeObj("TRun");
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run_obj.Init(runNode);
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text := ifObj(runNode) ? run_obj.Text() : "";
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if class(TSXml).IsUtf8() then text := Utf8ToAnsi(text);
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len := text ? lengthw(text) : 1;
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if cur_position_ + len > start_position_ then
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begin
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length := length(data_);
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data_[length]["tparagraph"] := tparagraph;
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data_[length]["trun"] := run_obj;
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data_[length]["text"] := text;
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// 左边切割，左边丢弃的字符数
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if cur_position_ < start_position_ and cur_position_ + len >= start_position_ + 1 then
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data_[length]["lsplit"] := start_position_ - cur_position_;
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// 右边切割，右边丢弃的字符数
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if cur_position_ + len > end_position_ then
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data_[length]["rsplit"] := cur_position_ + len - end_position_;
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end
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cur_position_ += len;
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End;
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Function TSWdRange.FindRangeByNode(startNode);
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Begin
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tc_pf := function(tc);
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begin
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node := tc.FirstChildElement();
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while ifObj(node) do
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begin
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self.FindRangeByNode(node);
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node := node.NextElement();
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end
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end
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case startNode.GetName() of
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"w:p": self.ParagraphRange(startNode);
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"w:tbl":
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begin
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tr := startNode.FirstChildElement("w:tr");
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while ifObj(tr) do
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begin
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tc := tr.FirstChildElement("w:tc");
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while ifObj(tc) do
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begin
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##tc_pf(tc);
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tc := tc.NextElement("w:tc");
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end
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tr := tr.NextElement("w:tr");
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end
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end
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"w:tc":
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begin
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##tc_pf(startNode);
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end
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end;
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End;
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Function TSWdRange.CalcPosition(startNode);
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Begin
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node := startNode.FirstChildElement();
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while ifObj(node) do
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begin
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if node.Eq(target_node_) then
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begin
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eq_flag := true;
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start_position_ := cur_position_;
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end
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case node.GetName() of
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"w:p":
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begin
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paragraph_obj := TOfficeObj("TParagraph");
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paragraph_obj.Init(node);
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if paragraph_obj.Empty() then // 空段落
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begin
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cur_position_ += 1;
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end
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else begin
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sub_node := node.FirstChildElement();
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while ifObj(sub_node) do
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begin
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case sub_node.GetName() of
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"w:r":
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begin
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run_obj := TOfficeObj("TRun");
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run_obj.Init(sub_node);
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text := run_obj.Text();
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if class(TSXml).IsUtf8() then text := Utf8ToAnsi(text);
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cur_position_ += lengthw(text);
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end
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"w:ins", "w:del":
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begin
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run_node := sub_node.FirstChildElement("w:r");
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while ifObj(run_node) do
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begin
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run_obj := TOfficeObj("TRun");
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run_obj.Init(run_node);
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text := run_obj.Text();
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if class(TSXml).IsUtf8() then text := Utf8ToAnsi(text);
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cur_position_ += lengthw(text);
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run_node := run_node.NextElement("w:r");
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end
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end
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end;
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sub_node := sub_node.NextElement();
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end
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// 完整段落
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cur_position_ += 1;
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end
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end
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"w:tbl":
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begin
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tr := node.FirstChildElement("w:tr");
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while ifObj(tr) do
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begin
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tc := tr.FirstChildElement("w:tc");
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while ifObj(tc) do
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begin
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flag := self.CalcPosition(tc);
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if flag then return 1;
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tc := tc.NextElement("w:tc");
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end
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cur_position_ += 1;
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tr := tr.NextElement("w:tr");
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end
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end
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end;
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if eq_flag then
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begin
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end_position_ := cur_position_;
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return 1;
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end
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node := node.NextElement();
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end
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End;
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Function TSWdRange.ParagraphRange(node);
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Begin
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paragraph_obj := TOfficeObj("TParagraph");
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paragraph_obj.Init(node);
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if paragraph_obj.Empty() then
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begin
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self.AddRunInfo2(nil, paragraph_obj);
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end
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else begin
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sub_node := node.FirstChildElement();
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while ifObj(sub_node) do
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begin
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case sub_node.GetName() of
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"w:r": self.AddRunInfo2(sub_node, paragraph_obj);
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"w:ins", "w:del":
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begin
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run_node := sub_node.FirstChildElement("w:r");
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while ifObj(run_node) do
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begin
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self.AddRunInfo2(run_node, paragraph_obj);
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run_node := run_node.NextElement("w:r");
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end
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end
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end;
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sub_node := sub_node.NextElement();
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end
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end
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End;
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Function TSWdRange.AddRunInfo2(runNode, tParagraph);
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Begin
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run_obj := TOfficeObj("TRun");
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run_obj.Init(runNode);
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length := length(data_);
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data_[length]["tparagraph"] := tParagraph;
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data_[length]["trun"] := run_obj;
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data_[length]["entirety"] := target_node_;
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End;
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