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{
/***************************************************************************
sortselectiondlg.pas
--------------------
***************************************************************************/
***************************************************************************
* *
* This source is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This code is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* A copy of the GNU General Public License is available on the World *
* Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also *
* obtain it by writing to the Free Software Foundation, *
* Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA. *
* *
***************************************************************************
Author: Mattias Gaertner
Abstract:
TSortSelectionDialog is a dialog to setup the parameters for sorting
text selection.
SortText is the function to sort the text.
}
unit SortSelectionDlg;
{$mode objfpc}{$H+}
interface
uses
SysUtils, Laz_AVL_Tree,
// LCL
LCLProc, Forms, Controls, StdCtrls, ExtCtrls, ButtonPanel,
// Codetools
BasicCodeTools,
// SynEdit
SynEdit, SynEditHighlighter,
// IdeIntf
TextTools, IDEWindowIntf,
// IDE
LazarusIDEStrConsts, EditorOptions, MiscOptions, SourceMarks;
type
TSortSelDlgState = (
ssdPreviewNeedsUpdate,
ssdSortedTextNeedsUpdate
);
TSortSelDlgStates = set of TSortSelDlgState;
{ TSortSelectionDialog }
TSortSelectionDialog = class(TForm)
ButtonPanel: TButtonPanel;
OptionsCheckGroup: TCheckGroup;
PreviewGroupBox: TGroupBox;
PreviewSynEdit: TSynEdit;
DirectionRadioGroup: TRadioGroup;
DomainRadioGroup: TRadioGroup;
procedure DirectionRadioGroupClick(Sender: TObject);
procedure DomainRadioGroupClick(Sender: TObject);
procedure FormClose(Sender: TObject; var {%H-}CloseAction: TCloseAction);
procedure FormCreate(Sender: TObject);
procedure OptionsCheckGroupItemClick(Sender: TObject; Index: integer);
private
FCaseSensitive: boolean;
FDirection: TSortDirection;
FDomain: TSortDomain;
FIgnoreSpace: boolean;
FStates: TSortSelDlgStates;
FTheText: string;
FUpdateCount: integer;
FSortedText: string;
function GetSortedText: string;
procedure SetCaseSensitive(const AValue: boolean);
procedure SetDirection(const AValue: TSortDirection);
procedure SetDomain(const AValue: TSortDomain);
procedure SetIgnoreSpace(const AValue: boolean);
procedure SetTheText(const AValue: string);
public
procedure BeginUpdate;
procedure EndUpdate;
procedure UpdatePreview;
public
property CaseSensitive: boolean read FCaseSensitive write SetCaseSensitive;
property Direction: TSortDirection read FDirection write SetDirection;
property Domain: TSortDomain read FDomain write SetDomain;
property IgnoreSpace: boolean read FIgnoreSpace write SetIgnoreSpace;
property TheText: string read FTheText write SetTheText;
property SortedText: string read GetSortedText;
end;
function ShowSortSelectionDialog(const TheText: string;
Highlighter: TSynCustomHighlighter;
out SortedText: string): TModalResult;
function SortText(const TheText: string; Direction: TSortDirection;
Domain: TSortDomain; CaseSensitive, IgnoreSpace: boolean): string;
implementation
{$R *.lfm}
function ShowSortSelectionDialog(const TheText: string;
Highlighter: TSynCustomHighlighter; out SortedText: string): TModalResult;
var
SortSelectionDialog: TSortSelectionDialog;
begin
SortedText:='';
SortSelectionDialog:=TSortSelectionDialog.Create(nil);
try
SortSelectionDialog.BeginUpdate;
SortSelectionDialog.TheText:=TheText;
SortSelectionDialog.PreviewSynEdit.Highlighter:=Highlighter;
EditorOpts.SetMarkupColor(Highlighter, ahaTextBlock, SortSelectionDialog.PreviewSynEdit.SelectedColor);
EditorOpts.ApplyFontSettingsTo(SortSelectionDialog.PreviewSynEdit);
SortSelectionDialog.UpdatePreview;
SortSelectionDialog.EndUpdate;
Result:=SortSelectionDialog.ShowModal;
if Result=mrOk then
SortedText:=SortSelectionDialog.SortedText;
IDEDialogLayoutList.SaveLayout(SortSelectionDialog);
finally
SortSelectionDialog.Free;
end;
end;
function ShowSortSelectionDialogBase(const TheText: string;
Highlighter: TObject; var SortedText: string): TModalResult;
begin
Result:=ShowSortSelectionDialog(TheText,Highlighter as TSynCustomHighlighter,
SortedText);
end;
type
TTextBlockCompareSettings = class
public
CaseSensitive: boolean;
IgnoreSpace: boolean;
Ascending: boolean;
end;
TTextBlock = class
public
Settings: TTextBlockCompareSettings;
Start: PChar;
Len: integer;
constructor Create(TheSettings: TTextBlockCompareSettings;
NewStart: PChar; NewLen: integer);
end;
{ TTextBlock }
constructor TTextBlock.Create(TheSettings: TTextBlockCompareSettings;
NewStart: PChar; NewLen: integer);
begin
Settings:=TheSettings;
Start:=NewStart;
Len:=NewLen;
end;
function CompareTextBlock(Data1, Data2: Pointer): integer;
var
Block1: TTextBlock;
Block2: TTextBlock;
Settings: TTextBlockCompareSettings;
begin
Block1:=TTextBlock(Data1);
Block2:=TTextBlock(Data2);
Settings:=Block1.Settings;
Result:=CompareText(Block1.Start,Block1.Len,Block2.Start,Block2.Len,
Settings.CaseSensitive,Settings.IgnoreSpace);
if not Settings.Ascending then
Result:=-Result;
end;
function SortText(const TheText: string; Direction: TSortDirection;
Domain: TSortDomain; CaseSensitive, IgnoreSpace: boolean): string;
const
IdentChars = ['_','a'..'z','A'..'Z'];
SpaceChars = [' ',#9];
var
Settings: TTextBlockCompareSettings;
Tree: TAVLTree;// tree of TTextBlock
StartPos: Integer;
EndPos: Integer;
ANode: TAVLTreeNode;
ABlock: TTextBlock;
TxtLen: integer;
LastNode: TAVLTreeNode;
LastBlock: TTextBlock;
LastChar: Char;
Last2Char: Char;
HeaderIndent: Integer;
CurIndent: Integer;
CurPos: Integer;
begin
Result:=TheText;
if Result='' then exit;
// create compare settings
Settings:=TTextBlockCompareSettings.Create;
Settings.CaseSensitive:=CaseSensitive;
Settings.IgnoreSpace:=IgnoreSpace;
Settings.Ascending:=(Direction=sdAscending);
// create AVL tree
Tree:=TAVLTree.Create(@CompareTextBlock);
// collect text blocks
TxtLen:=length(TheText);
case Domain of
sdParagraphs:
begin
// paragraphs:
// A paragraph is here a header line and all the lines to the next header
// line. A header line has the same indent as the first selected line.
// find indent in first line
HeaderIndent:=0;
while (HeaderIndent<TxtLen) and (TheText[HeaderIndent+1] in SpaceChars) do
inc(HeaderIndent);
// split text into blocks
StartPos:=1;
EndPos:=StartPos;
while EndPos<=TxtLen do begin
CurPos:=EndPos;
// find indent of current line
while (CurPos<=TxtLen) and (TheText[CurPos] in SpaceChars) do
inc(CurPos);
CurIndent:=CurPos-EndPos;
if CurIndent=HeaderIndent then begin
// new block
if EndPos>StartPos then
Tree.Add(
TTextBlock.Create(Settings,@TheText[StartPos],EndPos-StartPos));
StartPos:=EndPos;
end;
EndPos:=CurPos;
// add line to block
// read line
while (EndPos<=TxtLen) and (not (TheText[EndPos] in [#10,#13])) do
inc(EndPos);
// read line end
if (EndPos<=TxtLen) then begin
inc(EndPos);
if (EndPos<=TxtLen) and (TheText[EndPos] in [#10,#13])
and (TheText[EndPos]<>TheText[EndPos-1]) then
inc(EndPos);
end;
end;
if EndPos>StartPos then
Tree.Add(TTextBlock.Create(Settings,@TheText[StartPos],EndPos-StartPos));
end;
sdWords, sdLines:
begin
StartPos:=1;
while StartPos<=TxtLen do begin
EndPos:=StartPos+1;
while (EndPos<=TxtLen) do begin
case Domain of
sdWords:
// check if word start
if (TheText[EndPos] in IdentChars)
and (EndPos>1)
and (not (TheText[EndPos-1] in IdentChars))
then
break;
sdLines:
// check if LineEnd
if (TheText[EndPos] in [#10,#13]) then begin
inc(EndPos);
if (EndPos<=TxtLen) and (TheText[EndPos] in [#10,#13])
and (TheText[EndPos]<>TheText[EndPos-1]) then
inc(EndPos);
break;
end;
end;
inc(EndPos);
end;
if EndPos>TxtLen then EndPos:=TxtLen+1;
if EndPos>StartPos then
Tree.Add(TTextBlock.Create(Settings,@TheText[StartPos],EndPos-StartPos));
StartPos:=EndPos;
end;
end;
else
DebugLn('ERROR: Domain not implemented');
end;
// build sorted text
Result:='';
ANode:=Tree.FindHighest;
while ANode<>nil do begin
ABlock:=TTextBlock(ANode.Data);
Result:=Result+copy(TheText,ABlock.Start-PChar(TheText)+1,ABlock.Len);
case Domain of
sdLines,sdParagraphs:
if not (Result[length(Result)] in [#10,#13]) then begin
// this was the last line before the sorting
// if it moved, then copy the line end of the new last line
LastNode:=Tree.FindLowest;
LastBlock:=TTextBlock(LastNode.Data);
LastChar:=PChar(LastBlock.Start+LastBlock.Len-1)^;
if LastChar in [#10,#13] then begin
if (LastBlock.Len>1) then begin
Last2Char:=PChar(LastBlock.Start+LastBlock.Len-2)^;
if Last2Char in [#10,#13] then
Result:=Result+Last2Char;
end;
Result:=Result+LastChar;
end;
end;
end;
ANode:=Tree.FindPrecessor(ANode);
end;
// clean up
Tree.FreeAndClear;
Tree.Free;
Settings.Free;
end;
{ TSortSelectionDialog }
procedure TSortSelectionDialog.DirectionRadioGroupClick(Sender: TObject);
begin
if DirectionRadioGroup.ItemIndex=0 then
Direction:=sdAscending
else
Direction:=sdDescending;
end;
procedure TSortSelectionDialog.DomainRadioGroupClick(Sender: TObject);
begin
case DomainRadioGroup.ItemIndex of
0: Domain:=sdLines;
1: Domain:=sdWords;
2: Domain:=sdParagraphs;
else
Domain:=sdLines;
end;
end;
procedure TSortSelectionDialog.FormClose(Sender: TObject; var CloseAction:
TCloseAction);
begin
MiscellaneousOptions.SortSelDirection:=Direction;
MiscellaneousOptions.SortSelDomain:=Domain;
MiscellaneousOptions.Save;
end;
procedure TSortSelectionDialog.FormCreate(Sender: TObject);
begin
FCaseSensitive:=false;
FIgnoreSpace:=true;
FDirection:=MiscellaneousOptions.SortSelDirection;
FDomain:=MiscellaneousOptions.SortSelDomain;
FStates:=FStates+[ssdPreviewNeedsUpdate,ssdSortedTextNeedsUpdate];
IDEDialogLayoutList.ApplyLayout(Self,600,450);
Caption:=lisSortSelSortSelection;
PreviewGroupBox.Caption:=lisSortSelPreview;
with DirectionRadioGroup do begin
Caption:=dlgDirection;
ChildSizing.EnlargeHorizontal:=crsAnchorAligning;
with Items do begin
BeginUpdate;
Add(lisSortSelAscending);
Add(lisSortSelDescending);
case FDirection of
sdAscending: ItemIndex:=0;
else ItemIndex:=1;
end;
EndUpdate;
end;
end;
with DomainRadioGroup do begin
Caption:=lisSortSelDomain;
ChildSizing.EnlargeHorizontal:=crsAnchorAligning;
with Items do begin
BeginUpdate;
Add(lisSortSelLines);
Add(lisSortSelWords);
Add(lisSortSelParagraphs);
case FDomain of
sdLines: ItemIndex:=0;
sdWords: ItemIndex:=1;
else ItemIndex:=2;
end;
EndUpdate;
end;
end;
with OptionsCheckGroup do begin
Caption:=lisSortSelOptions;
ChildSizing.EnlargeHorizontal:=crsAnchorAligning;
with Items do begin
BeginUpdate;
Add(lisSortSelCaseSensitive);
Add(lisSortSelIgnoreSpace);
EndUpdate;
Checked[0]:=FCaseSensitive;
Checked[1]:=FIgnoreSpace;
end;
end;
ButtonPanel.OKButton.Caption:=lisSortSelSort;
end;
procedure TSortSelectionDialog.OptionsCheckGroupItemClick(Sender: TObject;
Index: integer);
begin
case Index of
0: CaseSensitive:=OptionsCheckGroup.Checked[0];
1: IgnoreSpace:=OptionsCheckGroup.Checked[1];
end;
end;
procedure TSortSelectionDialog.SetDirection(const AValue: TSortDirection);
begin
if FDirection=AValue then exit;
FDirection:=AValue;
FStates:=FStates+[ssdPreviewNeedsUpdate,ssdSortedTextNeedsUpdate];
UpdatePreview;
end;
function TSortSelectionDialog.GetSortedText: string;
begin
if ssdSortedTextNeedsUpdate in FStates then begin
FSortedText:=SortText(TheText,Direction,Domain,CaseSensitive,IgnoreSpace);
Exclude(FStates,ssdSortedTextNeedsUpdate);
end;
Result:=FSortedText;
end;
procedure TSortSelectionDialog.SetCaseSensitive(const AValue: boolean);
begin
if FCaseSensitive=AValue then exit;
FCaseSensitive:=AValue;
FStates:=FStates+[ssdPreviewNeedsUpdate,ssdSortedTextNeedsUpdate];
if (OptionsCheckGroup<>nil) then
OptionsCheckGroup.Checked[0]:=FCaseSensitive;
UpdatePreview;
end;
procedure TSortSelectionDialog.SetDomain(const AValue: TSortDomain);
begin
if FDomain=AValue then exit;
FDomain:=AValue;
FStates:=FStates+[ssdPreviewNeedsUpdate,ssdSortedTextNeedsUpdate];
UpdatePreview;
end;
procedure TSortSelectionDialog.SetIgnoreSpace(const AValue: boolean);
begin
if FIgnoreSpace=AValue then exit;
FIgnoreSpace:=AValue;
FStates:=FStates+[ssdPreviewNeedsUpdate,ssdSortedTextNeedsUpdate];
if (OptionsCheckGroup<>nil) then
OptionsCheckGroup.Checked[1]:=FIgnoreSpace;
UpdatePreview;
end;
procedure TSortSelectionDialog.SetTheText(const AValue: string);
begin
if FTheText=AValue then exit;
FTheText:=AValue;
FStates:=FStates+[ssdPreviewNeedsUpdate,ssdSortedTextNeedsUpdate];
UpdatePreview;
end;
procedure TSortSelectionDialog.BeginUpdate;
begin
inc(FUpdateCount);
end;
procedure TSortSelectionDialog.EndUpdate;
begin
dec(FUpdateCount);
if (FUpdateCount=0) then begin
if ssdSortedTextNeedsUpdate in FStates then
Include(FStates,ssdPreviewNeedsUpdate);
if (ssdPreviewNeedsUpdate in FStates) then UpdatePreview;
end;
end;
procedure TSortSelectionDialog.UpdatePreview;
begin
if FUpdateCount>0 then
Include(FStates,ssdPreviewNeedsUpdate)
else begin
Exclude(FStates,ssdPreviewNeedsUpdate);
PreviewSynEdit.Text:=SortedText;
end;
end;
initialization
TextTools.ShowSortSelectionDialogFunc:=@ShowSortSelectionDialogBase;
TextTools.SortTextFunc:=@SortText;
end.
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