added ToDo for textstrings.pas

git-svn-id: trunk@4442 -

lcl/allunits.pp

@@ -29,7 +29,7 @@ uses
   LCLStrConsts,
   // base classes
   LazQueue, DynHashArray, LCLMemManager, AvgLvlTree, StringHashList,
-  ExtendedStrings, DynamicArray, UTrace,
+  ExtendedStrings, DynamicArray, UTrace, TextStrings,
   // base types and base functions
   LCLProc, LCLType, GraphMath, VCLGlobals, FileCtrl, LMessages,
   // the interface base
@@ -47,6 +47,9 @@ end.
 { =============================================================================
 
   $Log$
+  Revision 1.25  2003/07/31 17:16:32  mattias
+  added ToDo for textstrings.pas
+
   Revision 1.24  2003/07/04 22:06:49  mattias
   implemented interface graphics
 

lcl/lclstrconsts.pas

@@ -172,6 +172,7 @@ ResourceString
   rsNoInterfaceObject = 'No interface object. '
     +'Plz check if the unit "interfaces" was added to the programs uses clause.';
   rsCanNotFocus = 'Can not focus';
+  rsListIndexExceedsBounds = 'List index exceeds bounds (%d)';
 
 
    

lcl/textstrings.pas

@@ -24,6 +24,20 @@
   complete text as whole instead of as line by line as in TStringList.
   
   UNDER CONSTRUCTION by Mattias Gaertner
+  
+  ToDo:
+    - Capacity
+    - Add
+    - Delete
+    - Exchange
+    - Insert
+    - GetObject
+    - Put
+    - PutObject
+    - Sort
+    - CustomSort
+    - Find
+    - Index
 }
 unit TextStrings;
 
@@ -32,22 +46,28 @@ unit TextStrings;
 interface
 
 uses
-  Classes, SysUtils; 
+  Classes, SysUtils, LCLStrConsts;
   
 type
   TLineRange = record
-    StartPos, EndPos: integer;
+    StartPos: integer; // start of line in Text
-    Line: string;
+    EndPos: integer; // end of line in Text (= start of newline character(s))
+    Line: string; // cached line as string
+    TheObject: TObject;
   end;
 
   TTextStrings = class(TStrings)
+  private
+    FOnChange: TNotifyEvent;
+    FOnChanging: TNotifyEvent;
   protected
     FArraysValid: boolean;
     FLineCount: integer;
     FLineRanges: ^TLineRange;// array of TLineRange
     FText: string;
+    FUpdateCount: integer;
     function GetTextStr: string; override;
-    procedure SetTextStr(const Value: string); override;
+    procedure SetTextStr(const AValue: string); override;
     procedure BuildArrays; virtual;
     function GetCount: Integer; override;
     procedure Changed; virtual;
@@ -57,9 +77,11 @@ type
   public
     destructor Destroy; override;
     procedure Clear; override;
-    procedure SetText(TheText: PChar); virtual;
+    procedure SetText(TheText: PChar); override;
   public
     property Text: string read FText write SetTextStr;
+    property OnChange: TNotifyEvent read FOnChange write FOnChange;
+    property OnChanging: TNotifyEvent read FOnChanging write FOnChanging;
   end;
 
 implementation
@@ -71,7 +93,7 @@ begin
   Result:=FText;
 end;
 
-procedure TTextStrings.SetTextStr(const Value: string);
+procedure TTextStrings.SetTextStr(const AValue: string);
 begin
   if FText=AValue then exit;
   FText:=AValue;
@@ -82,6 +104,7 @@ procedure TTextStrings.BuildArrays;
 var
   p, line: integer;
   l: Integer;
+  ArraySize: Integer;
 begin
   //writeln('[TTextStrings.BuildLineRanges] A Self=',HexStr(Cardinal(Self),8),',LineCount=',FLineCount,' Len=',SourceLength);
   if FArraysValid then exit;
@@ -107,11 +130,13 @@ begin
     inc(FLineCount);
   // build line range list
   if FLineCount>0 then begin
-    GetMem(FLineRanges,FLineCount*SizeOf(TLineRange));
+    ArraySize:=FLineCount*SizeOf(TLineRange);
+    GetMem(FLineRanges,ArraySize);
+    FillChar(FLineRanges^,ArraySize,0);
     p:=1;
     line:=0;
     FLineRanges[line].StartPos:=1;
-    FLineRanges[FLineCount-1].EndPos:=fSrcLen+1;
+    FLineRanges[FLineCount-1].EndPos:=l+1;
     while (p<=l) do begin
       if (not (FText[p] in [#10,#13])) then begin
         inc(p);
@@ -133,7 +158,7 @@ end;
 
 function TTextStrings.GetCount: Integer;
 begin
-  if not FArraysValid then BuildLineRanges;
+  if not FArraysValid then BuildArrays;
   Result:=FLineCount;
 end;
 
@@ -153,10 +178,15 @@ end;
 
 function TTextStrings.Get(Index: Integer): string;
 begin
-  BuildLineRanges;
+  if not FArraysValid then BuildArrays;
   if (Index<0) or (Index>=FLineCount) then
-    Error(SListIndexError,Index);
+    Error(rsListIndexExceedsBounds, Index);
-  // ToDo
+  if (FLineRanges[Index].Line='')
+  and (FLineRanges[Index].StartPos<FLineRanges[Index].EndPos) then begin
+    FLineRanges[Index].Line:=copy(FText,FLineRanges[Index].StartPos,
+                         FLineRanges[Index].EndPos-FLineRanges[Index].StartPos);
+  end;
+  Result:=FLineRanges[Index].Line;
 end;
 
 procedure TTextStrings.ClearArrays;