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lazdiffform.pas
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{
/***************************************************************************
lazdiffform.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: Domingo Galmés
some code borrowed from diffdialog.pas, author Mattias Gaertner (www.lazarus-ide.org)
Abstract:
The TDiffForm is a form for showing differences between two files.
}
unit lazdiffform;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils,
// LCL
Forms, Controls, Buttons, StdCtrls, ExtCtrls, Dialogs, ComCtrls, LCLType,
// LazUtils
FileUtil, IntegerList,
// SynEdit
SynEdit, SynHighlighterDiff, SynEditTypes, SynHighlighterPas,
Graphics, SynGutterLineNumber,
// IdeIntf
IDEWindowIntf, IDEHelpIntf, IDEImagesIntf,
SrcEditorIntf,
diff2, lazdiffutils,
Types, SynEditMiscClasses, SynEditMarkupSpecialLine;
const
DiffFormWindowName = 'IDEDiffCompareFilesWindow';
type
{ TAvailableDiffFile }
TAvailableDiffFile = class
private
Name: string;
Editor: TSourceEditorInterface;
SelectionAvailable: boolean;
public
constructor Create(const NewName: string; NewEditor: TSourceEditorInterface; NewSelectionAvailable: boolean);
end;
{ TAvailableDiffFiles }
TAvailableDiffFiles = class(TList)
private
function GetItems(Index: integer): TAvailableDiffFile;
procedure SetItems(Index: integer; const AValue: TAvailableDiffFile);
public
procedure Clear; override;
function Add(DiffFile: TAvailableDiffFile): integer;
function IndexOfName(const Name: string): integer;
public
property Items[Index: integer]: TAvailableDiffFile read GetItems write SetItems; default;
end;
TDiffForm = class;
{ TSelectedDiffFile }
TSelectedDiffFile = class
private
fOwner: TDiffForm;
fFile: TAvailableDiffFile; // Selected File
fCombobox: TComboBox; // Reference for the user selection GUI.
fOnlySelCheckBox: TCheckBox;
procedure GetLines(ALines: TStrings; var aFirstLine: integer; var aFileName: string);
procedure SetIndex(NewIndex: integer);
procedure SetFileName(aFileName: string);
procedure UpdateIndex;
public
constructor Create(aOwner: TDiffForm; aCombobox: TComboBox; aOnlySelCheckBox: TCheckBox);
end;
{ TDiffForm }
TDiffForm = class(TForm)
btnFindL: TBitBtn;
btnFindNextR: TBitBtn;
btnFindPreviousR: TBitBtn;
btnFindR: TBitBtn;
btnFindPreviousL: TBitBtn;
btnFindNextL: TBitBtn;
btnFirst: TButton;
btnCompare: TButton;
btnLast: TButton;
btnNext: TButton;
btnPrevious: TButton;
CancelScanningButton: TBitBtn;
DiffSynEdit: TSynEdit;
edLeft: TSynEdit;
edRight: TSynEdit;
HelpButton: TBitBtn;
CloseButton: TBitBtn;
lbLeftEdit: TLabel;
lbRightEdit: TLabel;
OpenInEditorButton: TBitBtn;
OptionsGroupBox: TCheckGroup;
PageControl1: TPageControl;
PanelButtons: TPanel;
ProgressBar1: TProgressBar;
SynDiffSyn1: TSynDiffSyn;
dlgOpen: TOpenDialog;
SynFreePascalSyn1: TSynFreePascalSyn;
tbsOptions: TTabSheet;
tbsCompare: TTabSheet;
tbsPatch: TTabSheet;
Text1Combobox: TComboBox;
Text1FileOpenButton: TButton;
Text1GroupBox: TGroupBox;
Text1OnlySelectionCheckBox: TCheckBox;
Text2Combobox: TComboBox;
Text2FileOpenButton: TButton;
Text2GroupBox: TGroupBox;
Text2OnlySelectionCheckBox: TCheckBox;
procedure btnCompareClick(Sender: TObject);
procedure btnFindLClick(Sender: TObject);
procedure btnFindNextLClick(Sender: TObject);
procedure btnFindNextRClick(Sender: TObject);
procedure btnFindPreviousLClick(Sender: TObject);
procedure btnFindPreviousRClick(Sender: TObject);
procedure btnFindRClick(Sender: TObject);
procedure btnFirstClick(Sender: TObject);
procedure btnLastClick(Sender: TObject);
procedure btnNextClick(Sender: TObject);
procedure btnpreviousClick(Sender: TObject);
procedure CancelScanningButtonClick(Sender: TObject);
procedure CloseButtonClick(Sender: TObject);
procedure OnSpecialLineMarkup(Sender: TObject; Line: integer;
var Special: boolean; Markup: TSynSelectedColor);
procedure edLeftStatusChange(Sender: TObject; Changes: TSynStatusChanges);
procedure edRightStatusChange(Sender: TObject; Changes: TSynStatusChanges);
procedure FileOpenClick(Sender: TObject);
procedure FormClose(Sender: TObject; var CloseAction: TCloseAction);
procedure FormCreate(Sender: TObject);
procedure HelpButtonClick(Sender: TObject);
procedure OnChangeFlag(Sender: TObject);
procedure LeftSynGutterLineNumber1FormatLineNumber(Sender: TSynGutterLineNumber;
ALine: integer; out AText: string; const ALineInfo: TSynEditGutterLineInfo);
procedure OpenInEditorButtonClick(Sender: TObject);
procedure RightSynGutterLineNumber1FormatLineNumber(Sender: TSynGutterLineNumber;
ALine: integer; out AText: string; const ALineInfo: TSynEditGutterLineInfo);
procedure tbsCompareResize(Sender: TObject);
procedure Text1ComboboxChange(Sender: TObject);
procedure Text2ComboboxChange(Sender: TObject);
private
fUpdating: boolean;
fAvailableFiles: TAvailableDiffFiles;
fSelectedFile1: TSelectedDiffFile;
fSelectedFile2: TSelectedDiffFile;
fDiff: TDiff;
fLeftLines: TStringList;
fRightLines: TStringList;
fLeftFirstLineNumber: integer;
fRightFirstLineNumber: integer;
fLeftTextHashes: TCardinalList;
fRightTextHashes: TCardinalList;
fCurrentOptions: TTextDiffFlags2;
fRightSearchOptions: TSynSearchOptions;
fRightSearchText: string;
fLeftSearchOptions: TSynSearchOptions;
fLeftSearchText: string;
fFile1Index: integer;
procedure SetupComponents;
procedure UpdateDiff;
function GetNomalizedKindType(aLineIndex: integer): TChangeKind;
public
constructor Create(TheOwner: TComponent); override;
destructor Destroy; override;
procedure Init;
procedure FillTextComboBoxes;
procedure SaveSettings;
procedure LoadSettings;
function GetDiffOptions: TTextDiffFlags2;
end;
procedure ShowDiffDialog;
procedure CreateIDEDiffForm(Sender: TObject; aFormName: string; var AForm: TCustomForm; DoDisableAutoSizing: boolean);
const
IgnoreCaseCheckBox = 0;
IgnoreEmptyLineChangesCheckBox = 1;
IgnoreHeadingSpacesCheckBox = 2;
IgnoreSpaceCharAmountCheckBox = 3;
IgnoreSpaceCharsCheckBox = 4;
IgnoreTrailingSpacesCheckBox = 5;
//IgnoreLineEndsCheckBox = 6; //we use stringlist to read files and end of lines are lost.
implementation
{$R *.lfm}
uses
LCLIntf, dateutils
, FindReplaceDialog2
, lazdiffUIConsts, LazConfigStorage, BaseIDEIntf, IDEMsgIntf, IDEExternToolIntf, lazideintf, projectintf;
var
gWindowCount: integer = 0;
procedure CreateIDEDiffForm(Sender: TObject; aFormName: string; var AForm: TCustomForm; DoDisableAutoSizing: boolean);
var
lForm: TDiffForm;
begin
if CompareText(aFormName, DiffFormWindowName) <> 0 then exit;
lForm := nil;
IDEWindowCreators.CreateForm(lForm, TDiffForm, DoDisableAutoSizing, LazarusIDE.OwningComponent);
Inc(gWindowCount);
//Name required for docking
lForm.Name := DiffFormWindowName + IntToStr(gWindowCount); // to allow multiple compare windows name must be diferent.
AForm := lForm;
end;
procedure ShowDiffDialog;
begin
IDEWindowCreators.ShowForm(DiffFormWindowName, True);
end;
{ TSelectedDiffFile }
constructor TSelectedDiffFile.Create(aOwner: TDiffForm; aCombobox: TComboBox; aOnlySelCheckBox: TCheckBox);
begin
inherited Create;
fOwner := aOwner;
fCombobox := aCombobox;
fOnlySelCheckBox := aOnlySelCheckBox;
end;
procedure TSelectedDiffFile.GetLines(ALines: TStrings; var aFirstLine: integer; var aFileName: string);
begin
aFirstLine := 1;
aFileName := '';
ALines.Clear;
if fFile = nil then
Exit;
if fFile.Editor = nil then
begin
if (fFile.Name<>'') and FileExists(fFile.Name) then
begin
ALines.LoadFromFile(fFile.Name);
AFileName := fFile.Name;
end;
end
else
begin
AFileName := fFile.Editor.FileName;
if (fFile.SelectionAvailable and fOnlySelCheckBox.Checked) then
begin
aFirstLine := fFile.Editor.BlockBegin.Y;
//ALines.Text := fFile.Editor.EditorComponent.SelText;
CopyStringList(fFile.Editor.Lines, ALines, aFirstLine - 1,
fFile.Editor.BlockEnd.Y - 1);
end
else
//ALines.Text := fFile.Editor.EditorComponent.Lines.Text;
CopyStringList(fFile.Editor.Lines, ALines);
end;
end;
procedure TSelectedDiffFile.SetIndex(NewIndex: integer);
var
OldFile: TAvailableDiffFile;
begin
OldFile := fFile;
if (NewIndex >= 0) and (NewIndex < fOwner.fAvailableFiles.Count) then
begin
fFile := fOwner.fAvailableFiles[NewIndex];
fCombobox.Text := fFile.Name;
fOnlySelCheckBox.Enabled := fFile.SelectionAvailable;
end
else
begin
fFile := nil;
fCombobox.Text := '';
fOnlySelCheckBox.Enabled := False;
end;
if fFile <> OldFile then fOwner.UpdateDiff;
end;
procedure TSelectedDiffFile.SetFileName(aFileName: string);
// Assumes that aFileName is already in fCombobox.Items.
begin
fCombobox.ItemIndex := fCombobox.Items.IndexOf(aFileName);
SetIndex(fCombobox.Items.IndexOf(aFileName));
end;
procedure TSelectedDiffFile.UpdateIndex;
begin
SetIndex(fCombobox.Items.IndexOf(fCombobox.Text));
end;
{ TDiffForm }
constructor TDiffForm.Create(TheOwner: TComponent);
var
i: integer;
SrcEdit: TSourceEditorInterface;
ActiveEdit: TSourceEditorInterface;
begin
inherited Create(TheOwner);
SetupComponents;
fUpdating := False;
fSelectedFile1 := TSelectedDiffFile.Create(Self, Text1Combobox, Text1OnlySelectionCheckBox);
fSelectedFile2 := TSelectedDiffFile.Create(Self, Text2Combobox, Text2OnlySelectionCheckBox);
if gWindowCount>0 then
Caption:=lisCaptionCompareFiles2+' '+IntToStr(gWindowCount+1)
else
Caption := lisCaptionCompareFiles2;
// IDEDialogLayoutList.ApplyLayout(Self, 600, 500);
fDiff := TDiff.Create(nil);
fLeftLines := TStringList.Create;
fRightLines := TStringList.Create;
fLeftTextHashes := TCardinalList.Create;
fRightTextHashes := TCardinalList.Create;
fAvailableFiles := TAvailableDiffFiles.Create;
ActiveEdit := SourceEditorManagerIntf.ActiveEditor;
fFile1Index := 0;
// Get available files
for i := 0 to SourceEditorManagerIntf.SourceEditorCount - 1 do
begin
SrcEdit := SourceEditorManagerIntf.SourceEditors[i];
fAvailableFiles.Add(TAvailableDiffFile.Create(SrcEdit.PageName, SrcEdit, SrcEdit.SelectionAvailable));
if ActiveEdit = SrcEdit then
fFile1Index := i;
end;
Init;
end;
destructor TDiffForm.Destroy;
begin
SaveSettings;
fSelectedFile2.Free;
fSelectedFile1.Free;
fDiff.Free;
fLeftLines.Free;
fRightLines.Free;
fLeftTextHashes.Free;
fRightTextHashes.Free;
fAvailableFiles.Free;
inherited Destroy;
end;
procedure TDiffForm.OnChangeFlag(Sender: TObject);
begin
UpdateDiff;
end;
function MyShowDot(Sender: TSynGutterLineNumber; AEditor: TSynEdit; ALine: integer): boolean;
begin
Result := ((ALine mod Sender.ShowOnlyLineNumbersMultiplesOf) <> 0) and (ALine <> AEditor.CaretY) and
(ALine <> 1) and (ALine <> AEditor.Lines.Count);
end;
procedure TDiffForm.LeftSynGutterLineNumber1FormatLineNumber(Sender: TSynGutterLineNumber;
ALine: integer; out AText: string; const ALineInfo: TSynEditGutterLineInfo);
begin
if (FDiff.Count > 0) and (aLine > 0) and (aLine <= FDiff.Count) then
begin
if FDiff.Compares[aLine - 1].Kind = ckAdd then
begin
aText := '+';
Exit;
end
else
aLine := FDiff.Compares[aLine - 1].oldIndex1 + fLeftFirstLineNumber;
aText := Sender.FormatLineNumber(aLine, MyShowDot(Sender, edLeft, ALine));
end;
end;
procedure TDiffForm.OpenInEditorButtonClick(Sender: TObject);
begin
//NewDiffFilename:=CreateSrcEditPageName('','FileDifference.diff', nil);
LazarusIDE.DoNewEditorFile(FileDescriptorText, 'FileDifference.diff', DiffSynEdit.Text,
[nfOpenInEditor, nfIsNotPartOfProject]);
end;
procedure TDiffForm.RightSynGutterLineNumber1FormatLineNumber(Sender: TSynGutterLineNumber;
ALine: integer; out AText: string; const ALineInfo: TSynEditGutterLineInfo);
begin
if (FDiff.Count > 0) and (aLine > 0) and (aLine <= FDiff.Count) then
begin
if FDiff.Compares[aLine - 1].Kind = ckDelete then
begin
aText := '-';
Exit;
end
else
aLine := FDiff.Compares[aLine - 1].oldIndex2 + fRightFirstLineNumber;
aText := Sender.FormatLineNumber(aLine, MyShowDot(Sender, edRight, ALine));
end;
end;
procedure TDiffForm.tbsCompareResize(Sender: TObject);
const
MARGIN = 5;
SEPARATION = 10;
var
lWidth: integer;
begin
lWidth := (TTabSheet(Sender).Width - MARGIN - MARGIN - SEPARATION) div 2;
edLeft.Width := lWidth;
edRight.Left := edLeft.Left + lWidth + SEPARATION;
edRight.Width := lWidth;
//center buttons.
PanelButtons.Left := (TTabSheet(Sender).Width div 2) - (PanelButtons.Width div 2);
lbLeftEdit.Width:=lWidth;
lbRightEdit.Width:=lWidth;
lbRightEdit.Left:=edRight.Left;
end;
procedure TDiffForm.FileOpenClick(Sender: TObject);
begin
if dlgOpen.Execute then
begin
//only add new files
if Text1ComboBox.Items.IndexOf(dlgOpen.FileName) = -1 then
begin
fAvailableFiles.Add(TAvailableDiffFile.Create(dlgOpen.FileName, nil, False));
Text1ComboBox.Items.Add(dlgOpen.FileName);
Text2ComboBox.Items.Add(dlgOpen.FileName);
end;
//set the combobox and make the diff
if TButton(Sender) = Text1FileOpenButton then
fSelectedFile1.SetFileName(dlgOpen.FileName)
else
fSelectedFile2.SetFileName(dlgOpen.FileName);
end;
end;
procedure TDiffForm.FormClose(Sender: TObject; var CloseAction: TCloseAction);
begin
CloseAction := caFree;
end;
procedure TDiffForm.CancelScanningButtonClick(Sender: TObject);
begin
fDiff.Cancel;
end;
procedure TDiffForm.CloseButtonClick(Sender: TObject);
begin
Close;
end;
procedure TDiffForm.btnCompareClick(Sender: TObject);
var
FileNameLeft, FileNameRight: string;
Temp:string;
Digits: integer;
const
TAB_COMPARE_INDEX = 1;
begin
if fUpdating then Exit;
if (fSelectedFile1 = nil) or (fSelectedFile1.fFile = nil) then
Exit;
if (fSelectedFile2 = nil) or (fSelectedFile2.fFile = nil) then
Exit;
fUpdating := True;
DiffSynEdit.Lines.Clear;
fSelectedFile1.GetLines(fLeftLines, fLeftFirstLineNumber, FileNameLeft);
fSelectedFile2.GetLines(fRightLines, fRightFirstLineNumber, FileNameRight);
if fSelectedFile1.fFile.Editor<>nil then
Temp:='[Editor] '
else
Temp:='[File] ';
lbLeftEdit.Caption:=Temp+FileNameLeft;
if fSelectedFile2.fFile.Editor<>nil then
Temp:='[Editor] '
else
Temp:='[File] ';
lbRightEdit.Caption:=Temp+FileNameRight;
lbLeftEdit.Hint:=FileNameLeft;
lbRightEdit.Hint:=FileNameRight;
fCurrentOptions := GetDiffOptions;
if (fLeftLines.Count > 0) or (fRightLines.Count > 0) then
begin
Text1GroupBox.Enabled := False;
Text2GroupBox.Enabled := False;
OpenInEditorButton.Enabled := False;
CancelScanningButton.Enabled := True;
CancelScanningButton.Visible := True;
ProgressBar1.Style := pbstMarquee;
FillHashList(fLeftTextHashes, fLeftLines, fCurrentOptions);
FillHashList(fRightTextHashes, fRightLines, fCurrentOptions);
Compare(fDiff, fLeftLines, fRightLines, fLeftTextHashes, fRightTextHashes,
edLeft, edRight);
if not fDiff.Cancelled then
begin
MakeUnifiedPatch(fDiff, fLeftLines, fRightLines, DiffSynEdit.Lines,
ExtractFileName(FileNameLeft), ExtractFileName(FileNameRight), 0,
0, fLeftFirstLineNumber, fRightFirstLineNumber);
//adjust gutter sizes.
Digits := fDiff.Count + fLeftFirstLineNumber;
TSynGutterLineNumber(edLeft.Gutter.Parts[1]).DigitCount :=
length(IntToStr(Digits));
Digits := fDiff.Count + fRightFirstLineNumber;
TSynGutterLineNumber(edRight.Gutter.Parts[1]).DigitCount :=
length(IntToStr(Digits));
ProgressBar1.Style := pbstNormal;
PageControl1.TabIndex := TAB_COMPARE_INDEX; //compare.
end;
CancelScanningButton.Visible := False;
CancelScanningButton.Enabled := False;
OpenInEditorButton.Enabled := True;
Text2GroupBox.Enabled := True;
Text1GroupBox.Enabled := True;
end
else
begin
edLeft.Lines.Clear;
edRight.Lines.Clear;
end;
fUpdating := False;
end;
// ***************** search ***********************
procedure DoFind(aEditor: TSynEdit; const aSearchText: string; aOptions: TSynSearchOptions; aForward: boolean);
var
StartPoint: TPoint;
begin
if length(aSearchText) <> 0 then
begin
//Include(aOptions, ssoFindContinue);
if aForward then
Exclude(aOptions, ssoBackwards)
else
Include(aOptions, ssoBackwards);
if not (ssoFindContinue in aOptions) then
StartPoint := Point(1, 1)
else
begin
StartPoint := aEditor.LogicalCaretXY;
if ssoBackwards in aOptions then
begin
if aEditor.SelText = aSearchText then
Dec(StartPoint.X, length(aSearchText));
end
else
begin
if aEditor.SelText = aSearchText then
Inc(StartPoint.X, length(aSearchText));
end;
end;
if aEditor.SearchReplaceEx(aSearchText, '', aOptions, StartPoint) = 0 then
ShowMessage(Format(lisUESearchStringNotFound2, [aSearchText]));
end;
end;
procedure DoFindDialog(aEditor: TSynEdit; var aSearchText: string; var aSearchOptions: TSynSearchOptions);
var
LazFindReplaceDialog2: TLazFindReplaceDialog2;
begin
LazFindReplaceDialog2 := TLazFindReplaceDialog2.Create(nil);
try
LazFindReplaceDialog2.FindText := aSearchText;
LazFindReplaceDialog2.Options := aSearchOptions;
LazFindReplaceDialog2.ReplaceWithCheckbox.Checked := False;
LazFindReplaceDialog2.ReplaceWithCheckboxChange(nil);
LazFindReplaceDialog2.ReplaceWithCheckbox.Enabled := False;
if LazFindReplaceDialog2.ShowModal = mrOk then
begin
aSearchText := LazFindReplaceDialog2.FindText;
aSearchOptions := LazFindReplaceDialog2.Options;
DoFind(aEditor, aSearchText, aSearchOptions, not (ssoBackwards in aSearchOptions));
end;
LazFindReplaceDialog2.ReplaceWithCheckbox.Enabled := True;
finally
LazFindReplaceDialog2.Free;
end;
end;
procedure TDiffForm.btnFindRClick(Sender: TObject);
begin
DoFindDialog(edRight, fRightSearchText, fRightSearchOptions);
end;
procedure TDiffForm.btnFindNextRClick(Sender: TObject);
begin
DoFind(edRight, fRightSearchText, fRightSearchOptions + [ssoFindContinue], True);
end;
procedure TDiffForm.btnFindPreviousRClick(Sender: TObject);
begin
DoFind(edRight, fRightSearchText, fRightSearchOptions + [ssoFindContinue], False);
end;
procedure TDiffForm.btnFindLClick(Sender: TObject);
begin
DoFindDialog(edLeft, fLeftSearchText, fLeftSearchOptions);
end;
procedure TDiffForm.btnFindNextLClick(Sender: TObject);
begin
DoFind(edLeft, fLeftSearchText, fLeftSearchOptions + [ssoFindContinue], True);
end;
procedure TDiffForm.btnFindPreviousLClick(Sender: TObject);
begin
DoFind(edLeft, fLeftSearchText, fLeftSearchOptions + [ssoFindContinue], False);
end;
// **********************************************************
procedure TDiffForm.btnFirstClick(Sender: TObject);
begin
edLeft.CaretY := 1;
if fDiff.Count > 0 then
begin
if fDiff.Compares[0].Kind = ckNone then
btnNextClick(Self);
end;
end;
procedure TDiffForm.btnLastClick(Sender: TObject);
var
Idx: integer;
begin
Idx := edLeft.Lines.Count - 1;
edLeft.CaretY := Idx + 1;
if fDiff.Count >= Idx then
begin
if fDiff.Compares[Idx].Kind = ckNone then
btnpreviousClick(Self);
end;
end;
// normalize kind type if we ignore blank line aditions or deletions
function TDiffForm.GetNomalizedKindType(aLineIndex: integer): TChangeKind;
begin
Result := fDiff.Compares[aLineIndex - 1].Kind;
if tdfIgnoreEmptyLineChanges in fCurrentOptions then
begin
if Result = ckAdd then
begin
if fDiff.Compares[aLineIndex - 1].int2 = EMPTY_LINE_HASH then
Result := ckNone;
end
else if Result = ckDelete then
begin
if fDiff.Compares[aLineIndex - 1].int1 = EMPTY_LINE_HASH then
Result := ckNone;
end;
end;
end;
procedure TDiffForm.btnNextClick(Sender: TObject);
var
LineIndex: integer;
Kind, KindTest: TChangeKind;
begin
LineIndex := edLeft.CaretY;
if (LineIndex > fDiff.Count) or (LineIndex < 1) then
Exit;
Kind := GetNomalizedKindType(LineIndex);
Inc(LineIndex);
if LineIndex > fDiff.Count then
Exit;
while LineIndex <= fDiff.Count do
begin
KindTest := GetNomalizedKindType(LineIndex);
if KindTest <> Kind then
begin
if KindTest <> ckNone then
begin
edLeft.CaretY := LineIndex;
break;
end;
Kind := ckNone;
end;
Inc(LineIndex);
end;
end;
procedure TDiffForm.btnpreviousClick(Sender: TObject);
var
LineIndex: integer;
Kind, KindTest: TChangeKind;
begin
LineIndex := edLeft.CaretY;
if (LineIndex > fDiff.Count) or (LineIndex < 1) then
Exit;
Kind := GetNomalizedKindType(LineIndex);
Dec(LineIndex);
if LineIndex < 1 then
Exit;
while LineIndex >= 1 do
begin
KindTest := GetNomalizedKindType(LineIndex);
if KindTest <> Kind then
begin
if KindTest <> ckNone then
begin
edLeft.CaretY := LineIndex;
break;
end;
Kind := ckNone;
end;
Dec(LineIndex);
end;
end;
procedure TDiffForm.OnSpecialLineMarkup(Sender: TObject; Line: integer;
var Special: boolean; Markup: TSynSelectedColor);
var
r, g, b: byte;
const
COLOR_ADDED_LINE = $ffdddd;
COLOR_ADDED_EMPTY_LINE = $fff5f5;
COLOR_DELETED_LINE = $ddddff;
COLOR_DELETED_EMPTY_LINE = $f5f5ff;
COLOR_MODIFIED_LINE = $ddffdd;
DARKNESS = $a;
begin
if (fDiff.Count > 0) and (Line > 0) and (Line <= fDiff.Count) then
begin
Markup.Foreground := clNone;
case fDiff.Compares[Line - 1].Kind of
ckNone:
Markup.Background := clWhite;
ckAdd:
begin
Markup.Background := COLOR_ADDED_LINE;
if (tdfIgnoreEmptyLineChanges in fCurrentOptions) and (fDiff.Compares[Line - 1].int2 =
EMPTY_LINE_HASH) then
begin
Markup.Background := COLOR_ADDED_EMPTY_LINE;
end;
end;
ckDelete:
begin
Markup.Background := COLOR_DELETED_LINE;
// if (tdfIgnoreEmptyLineChanges in fCurrentOptions) and (edLeft.Lines[fDiff.Compares[Line-1].oldIndex1]='') then
if (tdfIgnoreEmptyLineChanges in fCurrentOptions) and (fDiff.Compares[Line - 1].int1 =
EMPTY_LINE_HASH) then
begin
Markup.Background := COLOR_DELETED_EMPTY_LINE;
end;
end;
ckModify:
Markup.Background := COLOR_MODIFIED_LINE;
end;
end;
if Line = TSynEdit(Sender).CaretY then //current line.
begin
r := Red(Markup.Background) - DARKNESS;
g := Green(Markup.Background) - DARKNESS;
b := Blue(Markup.Background) - DARKNESS;
Markup.Background := RGB(r, g, b);
end;
Special := True;
end;
procedure Syncronize(Changes: TSynStatusChanges; aMaster: TSynEdit; aSlave: TSynEdit);
begin
if scTopLine in Changes then
aSlave.TopLine := aMaster.TopLine;
if scLeftChar in Changes then
aSlave.LeftChar := aMaster.LeftChar;
if scCaretY in Changes then
begin
if aSlave.CaretY <> aMaster.CaretY then // if then to allow text selection.
aSlave.CaretY := aMaster.CaretY;
end;
end;
procedure TDiffForm.edLeftStatusChange(Sender: TObject; Changes: TSynStatusChanges);
begin
Syncronize(Changes, edLeft, edRight);
end;
procedure TDiffForm.edRightStatusChange(Sender: TObject; Changes: TSynStatusChanges);
begin
Syncronize(Changes, edRight, edLeft);
end;
procedure TDiffForm.HelpButtonClick(Sender: TObject);
begin
// LazarusHelp.ShowHelpForIDEControl(Self);
end;
procedure TDiffForm.Text1ComboboxChange(Sender: TObject);
begin
fSelectedFile1.UpdateIndex;
end;
procedure TDiffForm.Text2ComboboxChange(Sender: TObject);
begin
fSelectedFile2.UpdateIndex;
end;
procedure TDiffForm.SetupComponents;
const
GetAllFilesMask2 = '*.*';
begin
// text 1
Text1GroupBox.Caption := lisDiffDlgFile12;
Text1OnlySelectionCheckBox.Caption := lisDiffDlgOnlySelection2;
Text1FileOpenButton.Caption := '...';
// text 2
Text2GroupBox.Caption := lisDiffDlgFile22;
Text2OnlySelectionCheckBox.Caption := lisDiffDlgOnlySelection2;
Text2FileOpenButton.Caption := '...';
// options
with OptionsGroupBox do
begin
Caption := lisOptions2;
Items.Add(lisDiffDlgCaseInsensitive2);
Items.Add(lisDiffDlgIgnoreIfEmptyLinesWereAdd2);
Items.Add(lisDiffDlgIgnoreSpacesAtStartOfLine2);
Items.Add(lisDiffDlgIgnoreSpacesAtEndOfLine2);
Items.Add(lisDiffDlgIgnoreIfSpaceCharsWereAdd2);
Items.Add(lisDiffDlgIgnoreSpaces2);
//Items.Add(lisDiffDlgIgnoreIfLineEndCharsDiffe2);
end;
// buttons
IDEImages.AssignImage(CancelScanningButton, 'btn_cancel');
CloseButton.Caption := lisClose2;
OpenInEditorButton.Caption := lisDiffDlgOpenDiffInEditor2;
HelpButton.Caption := lisMenuHelp2;
OpenInEditorButton.LoadGlyphFromStock(idButtonOpen);
if OpenInEditorButton.Glyph.Empty then
IDEImages.AssignImage(OpenInEditorButton, 'laz_open');
// dialogs
dlgOpen.Title := lisOpenExistingFile2;
dlgOpen.Filter := dlgFilterAll2 + ' (' + GetAllFilesMask2 + ')|' + GetAllFilesMask2 +
'|' + dlgFilterLazarusUnit2 + ' (*.pas;*.pp)|*.pas;*.pp' + '|' + dlgFilterLazarusProject2 +
' (*.lpi)|*.lpi' + '|' + dlgFilterLazarusForm2 + ' (*.lfm;*.dfm)|*.lfm;*.dfm'
+ '|' + dlgFilterLazarusPackage2 + ' (*.lpk)|*.lpk' + '|' +
dlgFilterLazarusProjectSource2 + ' (*.lpr)|*.lpr';
//tabsheets
tbsOptions.Caption := lisDiffTabOptions2;
tbsCompare.Caption := lisDiffTabCompare2;
tbsPatch.Caption := lisDiffTabPatch2;
//buttons
btnCompare.Caption := lisDiffBtnCompare2;
btnFirst.Caption := lisDiffBtnFirst2;
btnLast.Caption := lisDiffBtnLast2;
btnNext.Caption := lisDiffBtnNext2;
btnprevious.Caption := lisDiffBtnPrevious2;
// diff
SourceEditorManagerIntf.GetEditorControlSettings(DiffSynEdit);
SourceEditorManagerIntf.GetEditorControlSettings(edLeft);
SourceEditorManagerIntf.GetEditorControlSettings(edRight);
// code folding not allowed.
edLeft.Gutter.Parts[4].Visible := False;
edRight.Gutter.Parts[4].Visible := False;
SourceEditorManagerIntf.GetHighlighterSettings(SynFreePascalSyn1);
IDEImages.AssignImage(btnFindL, 'menu_search_find');
IDEImages.AssignImage(btnFindR, 'menu_search_find');
IDEImages.AssignImage(btnFindPreviousL, 'menu_search_find_previous');
IDEImages.AssignImage(btnFindPreviousR, 'menu_search_find_previous');
IDEImages.AssignImage(btnFindNextL, 'menu_search_find_next');
IDEImages.AssignImage(btnFindNextR, 'menu_search_find_next');
end;
procedure TDiffForm.UpdateDiff;
begin
end;
procedure TDiffForm.Init;
var
//LastText2Name: string;
i: integer;
begin
// fill all diff file names
FillTextComboBoxes;
fSelectedFile1.SetIndex(fFile1Index);
// get recent Text 2
i := 0;
// LastText2Name:=InputHistories.DiffText2;
//if LastText2Name <> '' then
// i := fAvailableFiles.IndexOfName(LastText2Name);
//if i < 0 then i := 0;
if i = fAvailableFiles.IndexOf(fSelectedFile2.fFile) then Inc(i);
fSelectedFile2.SetIndex(i);
// set recent options
LoadSettings;
end;
procedure TDiffForm.FillTextComboBoxes;
var
i: integer;
begin
// Text 1
Text1Combobox.Items.BeginUpdate;
Text1Combobox.Items.Clear;
for i := 0 to fAvailableFiles.Count - 1 do
Text1Combobox.Items.Add(fAvailableFiles[i].Name);
Text1Combobox.Items.EndUpdate;
// Text 2
Text2Combobox.Items.BeginUpdate;
Text2Combobox.Items.Clear;
for i := 0 to fAvailableFiles.Count - 1 do
Text2Combobox.Items.Add(fAvailableFiles[i].Name);
Text2Combobox.Items.EndUpdate;
end;
procedure TDiffForm.FormCreate(Sender: TObject);
begin
//Text1Combobox.DropDownCount:=EnvironmentOptions.DropDownCount;
//Text2Combobox.DropDownCount:=EnvironmentOptions.DropDownCount;
fCurrentOptions := GetDiffOptions;
PageControl1.TabIndex := 0;
end;
procedure TDiffForm.SaveSettings;
var
DiffFlags: TTextDiffFlags2;
Config: TConfigStorage;
const
Version = 1;
begin
DiffFlags := GetDiffOptions;
try
Config := GetIDEConfigStorage('lazdiffcomparefiles.xml', False);
try
// store the version number so future extensions can handle old config files
Config.SetDeleteValue('Version', Version, 0);
// store string variable "SomeValue"
// if SomeValue has the default value the entry is not stored,
// so only the differences to the default are stored.
// This way the xml is kept short and defaults may change in future.
Config.SetDeleteValue('Options/IgnoreCase', tdfIgnoreCase in DiffFlags, False);
Config.SetDeleteValue('Options/IgnoreEmptyLineChanges',
tdfIgnoreEmptyLineChanges in DiffFlags, False);
Config.SetDeleteValue('Options/IgnoreHeadingSpaces', tdfIgnoreHeadingSpaces in DiffFlags, False);
Config.SetDeleteValue('Options/IgnoreLineEnds', tdfIgnoreLineEnds in DiffFlags, False);
Config.SetDeleteValue('Options/IgnoreSpaceCharAmount', tdfIgnoreSpaceCharAmount in DiffFlags, False);
Config.SetDeleteValue('Options/IgnoreSpaceChars', tdfIgnoreSpaceChars in DiffFlags, False);
Config.SetDeleteValue('Options/IgnoreTrailingSpaces', tdfIgnoreTrailingSpaces in DiffFlags, False);
if (fSelectedFile1 <> nil) and (fSelectedFile1.fFile <> nil) then
begin
Config.SetDeleteValue('Options/DiffText1', fSelectedFile1.fFile.Name, '');
Config.SetDeleteValue('Options/Text1OnlySelection',
Text1OnlySelectionCheckBox.Checked, False);
end
else
begin
Config.SetDeleteValue('Options/DiffText1', '', '');
Config.SetDeleteValue('Options/Text1OnlySelection', False, False);
end;
if (fSelectedFile2 <> nil) and (fSelectedFile2.fFile <> nil) then
begin
Config.SetDeleteValue('Options/DiffText2', fSelectedFile2.fFile.Name, '');
Config.SetDeleteValue('Options/Text2OnlySelection',
Text2OnlySelectionCheckBox.Checked, False);
end
else
begin
Config.SetDeleteValue('Options/DiffText2', '', '');
Config.SetDeleteValue('Options/Text2OnlySelection', False, False);
end;
finally