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SynMemoEx.pas
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SynMemoEx.pas
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/// Synopse extended TMemo visual component
// - licensed under a MPL/GPL/LGPL tri-license; version 2.26
unit SynMemoEx;
{
This file is part of Synopse extended TMemo
Synopse SynMemoEx. Copyright (C) 2020 Arnaud Bouchez
Synopse Informatique - https://synopse.info
*** BEGIN LICENSE BLOCK *****
Version: MPL 1.1/GPL 2.0/LGPL 2.1
The contents of this file are subject to the Mozilla Public License Version
1.1 (the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
for the specific language governing rights and limitations under the License.
The Original Code is Synopse SynMemoEx.
The Initial Developer of the Original Code is Arnaud Bouchez.
Portions created by the Initial Developer are Copyright (C) 2020
the Initial Developer. All Rights Reserved.
Contributor(s):
Alternatively, the contents of this file may be used under the terms of
either the GNU General Public License Version 2 or later (the "GPL"), or
the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
in which case the provisions of the GPL or the LGPL are applicable instead
of those above. If you wish to allow use of your version of this file only
under the terms of either the GPL or the LGPL, and not to allow others to
use your version of this file under the terms of the MPL, indicate your
decision by deleting the provisions above and replace them with the notice
and other provisions required by the GPL or the LGPL. If you do not delete
the provisions above, a recipient may use your version of this file under
the terms of any one of the MPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****
Based on TMemoEx, by R&A Library 2.03 (c) R&A, 1996-2000.
R&A Library seems now unsupported. Web site is dead, as is their email address.
We decided to put this unit, mostly rewritten, under a MPL/GPL/LGPL tri-license.
* full code rewrite for speed, stability and new features
* regroup in one unit w/out RA Consts
* no expandTabs: too slow
* FAttrs are calculated on the fly: spare RAM on syntax highlight (only text is stored)
* don't use FLines.text on often-call methods (insertText, deleteSelected...)
* fClipProtect: clipBoard Copy/Cut limited to 2K for others programs (copyrights)
* find (text) command
* a lot of bug fixes
Version 1.18
- Unicode compatibility
}
{$I Synopse.inc}
interface
{.$define CLIPBOARDPROTECT} // if defined, ClipProtect truncates clipboard to 2KB
// use only with ONE TMemoEx at once
{$IFNDEF MEMOEX_NOEDITOR}
{$DEFINE MEMOEX_EDITOR} {if not MEMOEX_EDITOR then mode = Viewer}
{$ENDIF}
{$DEFINE MEMOEX_DEFLAYOUT} {set default keyboard layout}
{$IFNDEF MEMOEX_NOUNDO}
{$DEFINE MEMOEX_UNDO} {enable undo}
{$ENDIF}
{$IFNDEF MEMOEX_NOCOMPLETION}
{$DEFINE MEMOEX_COMPLETION} {enable code completion}
{$ENDIF}
{$IFNDEF MEMOEX_EDITOR}
{$UNDEF MEMOEX_DEFLAYOUT}
{$UNDEF MEMOEX_UNDO}
{$UNDEF MEMOEX_COMPLETION}
{$ENDIF MEMOEX_EDITOR}
{ $D-,L-} // avoid jumping in the source for any EComplete exceptions e.g.
{$I Synopse.inc} // define HASINLINE CPU32 CPU64 OWNNORMTOUPPER
uses
Windows,
Messages,
SysUtils,
Classes,
Types,
Graphics,
Controls,
Forms,
ExtCtrls,
StdCtrls,
ClipBrd,
Menus
{$ifdef FPC} // FPC compatibility by alf (alfred) - thanks for the patch!
, LCLType
{$endif FPC}
{$ifdef UNICODE}
, UITypes
{$endif UNICODE};
const
RAEditorCompletionChars: set of AnsiChar =
[#8, '_', '0'..'9', 'A'..'Z', 'a'..'z'];
Separators: set of AnsiChar =
[#0, ' ', '-', #13, #10, '.', ',', '/', '\', ':', '+', '%', '*', '(', ')',
';', '=', '{', '}', '[', ']', '|', '!', '@', '"'];
GutterRightMargin = 2;
WM_EDITCOMMAND = WM_USER + $101;
RA_EX_STYLE_DEFAULT = 0;
RA_CASE_CONVERT_UPPER = 0;
RA_CASE_CONVERT_LOWER = 1;
RA_CASE_CONVERT_INVERT = 2;
type
TRAControlScrollBar95 = class
private
FKind: TScrollBarKind;
FPosition: Integer;
FMin: Integer;
FMax: Integer;
FSmallChange: TScrollBarInc;
FLargeChange: TScrollBarInc;
FPage: integer;
FHandle: hWnd;
FOnScroll: TScrollEvent;
// FVisible : boolean;
procedure SetParam(index, Value: Integer);
// procedure SetVisible(Value : boolean);
// procedure SetLargeChange(Value: TScrollBarInc);
protected
procedure Scroll(ScrollCode: TScrollCode; var ScrollPos: Integer); dynamic;
public
constructor Create;
procedure SetParams(AMin, AMax, APosition, APage: integer);
procedure DoScroll(var Message: TWMScroll);
property Kind: TScrollBarKind read FKind write FKind default sbHorizontal;
property SmallChange: TScrollBarInc read FSmallChange write FSmallChange default 1;
property LargeChange: TScrollBarInc read FLargeChange write FLargeChange default 1;
property Min: Integer index 0 read FMin write SetParam default 0;
property Max: Integer index 1 read FMax write SetParam default 100;
property Position: Integer index 2 read FPosition write SetParam default 0;
property Page: integer index 3 read FPage write SetParam;
property Handle: hWnd read FHandle write FHandle;
property OnScroll: TScrollEvent read FOnScroll write FOnScroll;
// property Visible : boolean read FVisible write SetVisible;
end;
TCellRect = record
Width: integer;
Height: integer;
end;
PLineAttr = ^TLineAttr;
TLineAttr = packed record
FC, BC: TColor;
case integer of
0:
(Style: TFontStyles;
ex_style: byte;
underlined: boolean);
1:
(LastInteger: integer);
end;
TCustomMemoEx = class;
TWordUnderCursor = record // for TOnWordClick
Text: string;
Style: integer;
CaretX, CaretY, ParaIndex, ParaOffset: integer;
TextStart: integer;
Shift: TShiftState;
end;
TLineAttrs = array of TLineAttr;
TSelAttrs = array of boolean;
TOnGetLineAttr = procedure(Sender: TObject; const Line: string; index: integer; const SelAttrs: TSelAttrs; var Attrs: TLineAttrs) of object;
TOnChangeStatus = TNotifyEvent;
TOnChangeClipboardState = procedure(Sender: TObject; const CanPaste: boolean) of object;
TOnWordClick = procedure(Sender: TObject; const Clicked: TWordUnderCursor) of object;
TOnMouseOver = procedure(Sender: TObject; WordStyle: word; var _Cursor: TCursor) of object;
TOnBreakLine = procedure(Sender: TObject; const Original: string; var _New: string) of object;
TOnConcatLine = procedure(Sender: TObject; const Original: string; var _New: string) of object;
TOnTextInsert = procedure(Sender: TObject; var Text: string) of object;
TOnCaseConversion = function(Sender: TObject; Conversion: byte; const Text: string): string of object;
TOnInsertBlock = function(Sender: TObject; var Text: string): boolean of object;
TOnSaveBlock = procedure(Sender: TObject; const Text: string) of object;
TOnInsertMacro = function(Sender: TObject; MacroID: integer): string of object;
TOnBlockOperation = function(Sender: TObject; MacroID: integer; const Text: string): string of object;
TOnSetCaretPos = procedure(Sender: TObject; CaretX, CaretY: integer) of object;
TOnClipboardPaste = function(Sender: TObject): boolean of object;
{$IFDEF MEMOEX_COMPLETION}
TOnPreprocessCompletion = function(Sender: TObject; const ID, Text: string): string of object;
{$ENDIF}
PAutoChangeWord = ^TAutoChangeWord;
TAutoChangeWord = record
OldWord, NewWord: string;
end;
PParagraph = ^TParagraph;
TParagraph = record
FPreCount, FCount: integer; // length(FString) = FStrings[0..FCount-1]
FStrings: array of string;
FObject: TObject;
end;
TEditorStrings = class(TStrings)
private
FMemoEx: TCustomMemoEx;
FList: array of TParagraph;
FParaLinesCount, FCount: integer;
FOnChanging: TNotifyEvent;
FOnAfterLoad: TNotifyEvent;
FOnBeforeSave: TNotifyEvent;
procedure Recount(Index: integer);
function _GetString(ParaIndex: integer): string;
procedure _PutString(ParaIndex: integer; const S: string);
procedure ReformatParagraph(ParaIndex: integer);
procedure Reformat;
procedure CheckLength(const st: string);
procedure Grow;
procedure InsertItem(Index: integer; const S: string);
protected
procedure Changed; virtual;
procedure Changing; virtual;
function Get(Index: integer): string; override;
function GetParaString(Index: integer): string;
function GetParagraph(Index: integer): PParagraph;
procedure Put(Index: integer; const S: string); override;
procedure PutParaString(Index: integer; const S: string);
procedure PutObject(Index: Integer; AObject: TObject); override;
function GetObject(Index: Integer): TObject; override;
procedure SetUpdateState(Updating: Boolean); override;
function GetTextStr: string; override;
procedure SetTextStr(const Value: string); override;
procedure SetInternal(Index: integer; const Value: string);
procedure SetInternalParaStr(Index: integer; const Value: string);
function GetCount: Integer; override; // make compiler happy
function AddParaStr(ParaIndex: integer; const S: string): integer;
procedure ReLine; // complete line with spaces until caret X pos
property Internal[Index: integer]: string write SetInternal;
property InternalParaStrings[Index: integer]: string write SetInternalParaStr;
public
constructor Create;
destructor Destroy; override;
procedure Clear; override;
procedure BeginUpdate;
procedure EndUpdate;
function Add(const S: string): integer; override;
procedure Delete(Index: integer); override;
procedure Insert(Index: integer; const S: string); override;
procedure LoadFromFile(const FileName: string); override;
procedure SaveToFile(const FileName: string); override;
procedure SetLockText(const Text: string);
function GetTextLength: integer; // fast get length(Text) value
function HasText: boolean; // true if Text<>''
procedure Index2ParaIndex(Index: integer; out Para, ParaIndex: integer);
function GetParagraphByIndex(Index: integer; out ParaIndex, IndexOffs: integer): string;
procedure Caret2Paragraph(X, Y: integer; out ParaIndex, IndexOffs: integer);
procedure Paragraph2Caret(ParaIndex, IndexOffs: integer; out X, Y: integer);
function GetParaOffs(ParaIndex: integer): integer; // in global Text[] string
property ParaLineCount: integer read FParaLinesCount;
property ParaStrings[Index: integer {=ParaY}]: string read GetParaString write PutParaString;
property Paragraphs[Index: integer]: PParagraph read GetParagraph; // = FList[index]
// property OnChange: TNotifyEvent read FOnChange write FOnChange;
property OnChanging: TNotifyEvent read FOnChanging write FOnChanging;
end;
TModifiedAction = (maInsert, maDelete);
TBookMark = record
X, Y: integer;
Valid: boolean;
end;
TBookMarkNum = 0..9;
TBookMarks = array[TBookMarkNum] of TBookMark;
TEditorClient = class
private
FMemoEx: TCustomMemoEx;
Top: integer;
function Left: integer;
function Height: integer;
function Width: integer;
function ClientWidth: integer;
function ClientHeight: integer;
function ClientRect: TRect;
function BoundsRect: TRect;
function GetCanvas: TCanvas;
property Canvas: TCanvas read GetCanvas;
end;
TGutter = class
private
FMemoEx: TCustomMemoEx;
public
procedure Paint;
procedure Invalidate;
end;
TOnPaintGutter = procedure(Sender: TObject; Canvas: TCanvas; const Rect: TRect) of object;
TEditCommand = word;
TMacro = string; { uses as buffer }
TEditKey = class
public
Key1, Key2: Word;
Shift1, Shift2: TShiftState;
Command: TEditCommand;
constructor Create(const ACommand: TEditCommand; const AKey1: word;
const AShift1: TShiftState);
constructor Create2(const ACommand: TEditCommand; const AKey1: word;
const AShift1: TShiftState; const AKey2: word; const AShift2: TShiftState);
end;
TKeyboard = class
private
List: TList;
public
constructor Create;
destructor Destroy; override;
procedure Add(const ACommand: TEditCommand; const AKey1: word; const AShift1: TShiftState);
procedure Add2(const ACommand: TEditCommand; const AKey1: word; const AShift1: TShiftState;
const AKey2: word; const AShift2: TShiftState);
procedure Clear;
function Command(const AKey: word; const AShift: TShiftState): TEditCommand;
function Command2(const AKey1: word; const AShift1: TShiftState;
const AKey2: word; const AShift2: TShiftState): TEditCommand;
{$IFDEF MEMOEX_DEFLAYOUT}
procedure SetDefLayout;
{$ENDIF MEMOEX_DEFLAYOUT}
end;
EComplete = class(EAbort);
EMemoExError = class(Exception);
{$IFDEF MEMOEX_UNDO}
TUndoBuffer = class;
TUndo = class
private
FMemoEx: TCustomMemoEx;
function UndoBuffer: TUndoBuffer;
public
constructor Create(const AMemoEx: TCustomMemoEx);
procedure Undo; dynamic; abstract;
procedure Redo; dynamic; abstract;
end;
TUndoBuffer = class(TList)
private
FMemoEx: TCustomMemoEx;
FPtr: integer;
FCancelUndo, InUndo: boolean;
function IsNewGroup(const AUndo: TUndo): boolean;
public
constructor Create;
procedure Add(AUndo: TUndo);
function LastUndo: TUndo;
procedure Undo;
procedure Redo;
procedure Clear; override;
procedure Delete;
end;
{$ENDIF MEMOEX_UNDO}
{$IFDEF MEMOEX_COMPLETION}
TCompletion = class;
TOnCompletion = procedure(Sender: TObject; var Cancel: boolean) of object;
{$ENDIF MEMOEX_COMPLETION}
TTabStop = (tsTabStop, tsAutoIndent);
{*** TCustomMemoEx }
TCustomMemoEx = class(TCustomControl)
private
{ internal objects }
FLines: TEditorStrings;
scbHorz: TRAControlScrollBar95;
scbVert: TRAControlScrollBar95;
EditorClient: TEditorClient;
FGutter: TGutter;
FKeyboard: TKeyboard;
FBookMarks: TBookMarks;
FUpdateLock: integer;
{$IFDEF MemoEx_UNDO}
FUndoBuffer: TUndoBuffer;
FGroupUndo: boolean;
{$ENDIF MEMOEX_UNDO}
{$IFDEF MEMOEX_COMPLETION}
FCompletion: TCompletion;
{$ENDIF MEMOEX_COMPLETION}
{ internal - Columns and rows attributes }
FCols, FRows: integer;
FLeftCol, FTopRow: integer;
// FLeftColMax, FTopRowMax : integer;
FLastVisibleCol, FLastVisibleRow: integer;
FCaretX, FCaretY: integer;
FVisibleColCount: integer;
FVisibleRowCount: integer;
{ internal - other flags and attributes }
FAllRepaint: boolean;
FCellRect: TCellRect;
{$IFDEF MEMOEX_EDITOR}
IgnoreKeyPress: boolean;
{$ENDIF MEMOEX_EDITOR}
WaitSecondKey: Boolean;
Key1: Word;
Shift1: TShiftState;
{ internal - selection attributes }
FSelected: boolean;
FSelBlock: boolean;
FSelBegX, FSelBegY, FSelEndX, FSelEndY: integer;
FUpdateSelBegX, FUpdateSelEndX, FUpdateSelBegY, FUpdateSelEndY: integer;
FSelStartX, FSelStartY: integer;
FclSelectBC, FclSelectFC: TColor;
{ mouse support }
timerScroll: TTimer;
MouseMoveY, MouseMoveXX, MouseMoveYY: integer;
{ internal }
FTabPos: array of boolean;
FTabStops: string;
{ internal - primary for TIReader support }
FEditBuffer: string;
FPEditBuffer: PChar;
FEditBufferSize: integer;
FCompound: integer;
{ FMacro - buffer of TEditCommand, each command represents by two chars }
FMacro: TMacro;
FDefMacro: TMacro;
{ visual attributes - properties }
FBorderStyle: TBorderStyle;
FGutterColor: TColor;
FGutterWidth: integer;
FRightMarginVisible: boolean;
FRightMargin: integer;
FRightMarginColor: TColor;
FScrollBars: TScrollStyle;
FDoubleClickLine: boolean;
FSmartTab: Boolean;
FBackSpaceUnindents: Boolean;
FAutoIndent: Boolean;
FKeepTrailingBlanks: Boolean;
FCursorBeyondEOF: Boolean;
FCursorBeyondEOL: Boolean;
{ FInclusive - Inclusive mode }
FInclusive: Boolean;
{ non-visual attributes - properties }
FInsertMode: boolean;
FReadOnly: boolean;
FModified: boolean;
FRecording: boolean;
{ Events }
FOnGetLineAttr: TOnGetLineAttr;
FOnChange: TNotifyEvent;
FOnSelectionChange: TNotifyEvent;
FOnChangeStatus: TOnChangeStatus;
FOnChangeClipboardState: TOnChangeClipboardState;
FOnScroll: TNotifyEvent;
FOnResize: TNotifyEvent;
FOnDblClick: TNotifyEvent;
FOnPaintGutter: TOnPaintGutter;
FOnWordClick: TOnWordClick;
FOnMouseOver: TOnMouseOver;
FOnBreakLine: TOnBreakLine;
FOnConcatLine: TOnConcatLine;
FOnTextInsert: TOnTextInsert;
FOnCaseConversion: TOnCaseConversion;
FOnInsertBlock: TOnInsertBlock;
FOnSaveBlock: TOnSaveBlock;
FOnInsertMacro: TOnInsertMacro;
FOnBlockOperation: TOnBlockOperation;
FOnSetCaretPos: TOnSetCaretPos;
{$IFDEF MEMOEX_COMPLETION}
FOnCompletionIdentifer: TOnCompletion;
FOnCompletionTemplate: TOnCompletion;
FOnCompletionDrawItem: TDrawItemEvent;
FOnCompletionMeasureItem: TMeasureItemEvent;
FOnPreprocessCompletion: TOnPreprocessCompletion;
{$ENDIF MEMOEX_COMPLETION}
FDrawBitmap: TBitmap;
FFont: TFont;
FWantTabs: boolean;
FWordWrap: boolean;
FStripInvisible: boolean;
FParaX, FParaY: integer;
NextClipViewer: THandle;
scbVertWidth, scbHorzHeight: integer;
Max_X: integer;
mouse_down, mouse_dragged, double_clicked: boolean;
FWordUnderCursor: TWordUnderCursor;
FClipPasteRtfBackSlashConvert: boolean;
{$ifdef CLIPBOARDPROTECT} // ClipProtect will trunc clipboard to 2KB
FClip: string; // AB
FClipProtect: boolean;
{$endif}
FOnClipboardPaste: TOnClipboardPaste; // AB
procedure SetMax_X(const Value: integer);
procedure UpdateEditorSize(const FullUpdate: boolean = true; const RepaintGutter: boolean = true);
procedure RedrawFrom(YFrom: integer);
function RepaintParagraph(LineIndex: integer): integer;
{$IFDEF MEMOEX_COMPLETION}
procedure DoCompletionIdentifer(var Cancel: boolean);
procedure DoCompletionTemplate(var Cancel: boolean);
function DoPreprocessCompletion(const ID, OldText: string): string;
{$ENDIF MEMOEX_COMPLETION}
procedure ScrollTimer(Sender: TObject);
procedure ReLine;
function GetDefTabStop(const X: integer; const Next: Boolean): integer;
function GetTabStop(const X, Y: integer; const What: TTabStop; const Next: Boolean): integer;
function GetBackStop(const X, Y: integer): integer;
procedure TextAllChangedInternal(const Unselect: Boolean);
{ properties }
procedure SetGutterWidth(AWidth: integer);
procedure SetGutterColor(AColor: TColor);
procedure SetFont(Value: TFont);
procedure SetBorderStyle(Value: TBorderStyle);
procedure SetLines(ALines: TEditorStrings);
function GetRealOffs(DefOffs, Index: integer): integer;
function GetSelStart: integer;
procedure SetSelStart(const ASelStart: integer);
procedure SetSelLength(const ASelLength: integer);
function GetSelLength: integer;
procedure SetMode(index: integer; Value: boolean);
procedure SetCaretPosition(const index, Pos: integer);
procedure SetCols(ACols: integer);
procedure SetRows(ARows: integer);
procedure SetScrollBars(Value: TScrollStyle);
procedure SetRightMarginVisible(Value: boolean);
procedure SetRightMargin(Value: integer);
procedure SetRightMarginColor(Value: TColor);
function ExtractStringWithStyle(XX, YY: integer; const From: string; Style: word;
const LineAttrs: TLineAttrs; out start: integer): string;
procedure GetWordUnderCursor(X, Y: integer; aShift: TShiftState = []);
function GetAfterLoad: TNotifyEvent;
procedure SetAfterLoad(Value: TNotifyEvent);
function GetBeforeSave: TNotifyEvent;
procedure SetBeforeSave(Value: TNotifyEvent);
procedure SetWordWrap(Value: boolean);
procedure SetStripInvisible(Value: boolean);
procedure SetSelectedText(Value: boolean);
procedure FontChanged(Sender: TObject);
procedure SetTopRow(const Value: integer);
function GetTextStr: string;
procedure SetTextStr(const Value: string);
protected
SelAttrs_Size: integer;
SelAttrs: TSelAttrs;
property FSelectedText: boolean read FSelected write SetSelectedText;
procedure Resize; override;
procedure CreateWnd; override;
procedure CreateParams(var Params: TCreateParams); override;
procedure Loaded; override;
procedure Paint; override;
procedure ScrollBarScroll(Sender: TObject; ScrollCode: TScrollCode; var ScrollPos: integer);
procedure Scroll(const Vert: boolean; const ScrollPos: integer);
procedure PaintLine(const Line: integer; ColBeg, ColEnd: integer);
procedure KeyDown(var Key: Word; Shift: TShiftState); override;
{$IFDEF MEMOEX_EDITOR}
procedure KeyPress(var Key: Char); override;
procedure InsertChar(const Key: Char);
{$ENDIF MEMOEX_EDITOR}
procedure SetSel(const ASelX, ASelY: integer);
function GetAttrDelta(StartFrom, EndTo: integer; const LineAttrs: TLineAttrs): integer;
procedure MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: integer); override;
procedure MouseMove(Shift: TShiftState; X, Y: integer); override;
procedure MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: integer); override;
procedure DblClick; override;
function DoMouseWheel(Shift: TShiftState; WheelDelta: integer; MousePos: TPoint): boolean; override;
procedure DoContextPopup(MousePos: TPoint; var Handled: Boolean); override;
// procedure DrawRightMargin;
procedure PaintSelection;
procedure SetUnSelected;
procedure Mouse2Cell(const X, Y: integer; var CX, CY: integer);
procedure Mouse2Caret(const X, Y: integer; var CX, CY: integer);
procedure CaretCoord(const X, Y: integer; var CX, CY: integer);
function PosFromMouse(const X, Y: integer): integer;
procedure SetLockText(const Text: string);
// function ExpandTabs(const S: string): string;
{$IFDEF MEMOEX_UNDO}
procedure CantUndo;
{$ENDIF MEMOEX_UNDO}
procedure SetCaretInternal(X, Y: integer);
procedure ValidateEditBuffer;
procedure SetXY(X, Y: integer);
{$IFDEF MEMOEX_EDITOR}
procedure ChangeBookMark(const BookMark: TBookMarkNum; const Valid: boolean);
procedure InsertText(const Text: string);
{$ENDIF MEMOEX_EDITOR}
procedure BeginRecord;
procedure EndRecord(var AMacro: TMacro);
procedure PlayMacro(const AMacro: TMacro);
function YinBounds(AY: integer): boolean;
function DoChangeCase(const st: string; Conversion: byte): string;
{ triggers for descendants }
procedure Changed; dynamic;
procedure TextAllChanged; dynamic;
procedure StatusChanged; dynamic;
procedure SelectionChanged; dynamic;
procedure ClipboardChanged; dynamic;
procedure GetLineAttr(Line, LineIdx, LineOffs, LineLen, ColBeg, ColEnd: integer;
const ALine: string; var FAttrs: TLineAttrs); virtual;
procedure GutterPaint(Canvas: TCanvas; const Rect: TRect); dynamic;
procedure BookmarkChanged(BookMark: integer); dynamic;
{$IFDEF MEMOEX_COMPLETION}
procedure CompletionIdentifer(var Cancel: boolean); dynamic;
procedure CompletionTemplate(var Cancel: boolean); dynamic;
{$ENDIF MEMOEX_COMPLETION}
property Gutter: TGutter read FGutter;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure Invalidate; override;
procedure WndProc(var Message: TMessage); override;
procedure SetLeftTop(ALeftCol, ATopRow: integer);
procedure ClipBoardCopy;
procedure ClipBoardPaste;
procedure ClipBoardCut;
procedure DeleteSelected;
function CalcCellRect(const X, Y: integer): TRect;
procedure SetCaret(const X, Y: integer);
procedure SetCaretAtParaPos(const ParaIndex, IndexOffs: integer);
procedure CaretFromPos(Pos: integer; var X, Y: integer);
function PosFromCaret(X, Y: integer): integer;
procedure PaintCaret(bShow: boolean);
function GetTextLen: integer;
function GetSelText: string;
procedure SetSelText(const AValue: string);
function GetWordOnCaret: string;
procedure BeginUpdate;
procedure EndUpdate;
procedure MakeRowVisible(ARow: integer);
procedure Command(ACommand: TEditCommand); virtual;
procedure PostCommand(ACommand: TEditCommand);
{$IFDEF MEMOEX_EDITOR}
procedure InsertTextAtCurrentPos(const _Text: string);
function FindNext(const text: string; ignCase: boolean): boolean;
procedure ReplaceWord(const NewString: string);
procedure ReplaceWord2(const NewString: string);
{$ENDIF}
procedure BeginCompound;
procedure EndCompound;
function GetText(Position: longint; Buffer: PChar; Count: longint): longint;
function IsUndoEmpty: boolean;
procedure MouseWheelScroll(Delta: integer);
{$ifdef CLIPBOARDPROTECT} // ClipProtect will trunc clipboard to 2KB
property ClipProtect: boolean read FClipProtect write FClipProtect; // AB
{$endif}
property ClipPasteRtfBackSlashConvert: boolean // AB: rtf
read FClipPasteRtfBackSlashConvert write FClipPasteRtfBackSlashConvert;
property LeftCol: integer read FLeftCol;
property TopRow: integer read FTopRow write SetTopRow;
property VisibleColCount: integer read FVisibleColCount;
property VisibleRowCount: integer read FVisibleRowCount;
property LastVisibleCol: integer read FLastVisibleCol;
property LastVisibleRow: integer read FLastVisibleRow;
property Cols: integer read FCols write SetCols;
property Rows: integer read FRows write SetRows;
property CaretX: integer index 0 read FCaretX write SetCaretPosition;
property CaretY: integer index 1 read FCaretY write SetCaretPosition;
property Modified: boolean read FModified write FModified;
property SelStart: integer read GetSelStart write SetSelStart;
property SelLength: integer read GetSelLength write SetSelLength;
property SelText: string read GetSelText write SetSelText;
property SelectedText: boolean read FSelected;
property BookMarks: TBookMarks read FBookMarks;
property Keyboard: TKeyboard read FKeyboard;
property CellRect: TCellRect read FCellRect;
{$IFDEF MEMOEX_UNDO}
property UndoBuffer: TUndoBuffer read FUndoBuffer;
{$ENDIF MEMOEX_UNDO}
property Recording: boolean read FRecording;
property WordUnderCursor: TWordUnderCursor read FWordUnderCursor;
property SelBegY: integer read FSelBegY;
property SelEndY: integer read FSelEndY;
public
{ published in descendants }
property BorderStyle: TBorderStyle read FBorderStyle write SetBorderStyle default bsSingle;
property Lines: TEditorStrings read FLines write SetLines;
property ScrollBars: TScrollStyle read FScrollBars write SetScrollBars default ssBoth;
property Cursor default crIBeam;
property Color default clWindow;
property Font: TFont read FFont write SetFont;
property Text: string read GetTextStr write SetTextStr;
property GutterWidth: integer read FGutterWidth write SetGutterWidth;
property GutterColor: TColor read FGutterColor write SetGutterColor default clBtnFace;
property RightMarginVisible: boolean read FRightMarginVisible write SetRightMarginVisible default true;
property RightMargin: integer read FRightMargin write SetRightMargin default 80;
property RightMarginColor: TColor read FRightMarginColor write SetRightMarginColor default clBtnFace;
property InsertMode: boolean index 0 read FInsertMode write SetMode default true;
property ReadOnly: boolean index 1 read FReadOnly write SetMode default false;
property DoubleClickLine: boolean read FDoubleClickLine write FDoubleClickLine default false;
{$IFDEF MEMOEX_COMPLETION}
property Completion: TCompletion read FCompletion write FCompletion;
{$ENDIF MEMOEX_COMPLETION}
property TabStops: string read FTabStops write FTabStops;
property SmartTab: Boolean read FSmartTab write FSmartTab default true;
property BackSpaceUnindents: Boolean read FBackSpaceUnindents write FBackSpaceUnindents default true;
property AutoIndent: Boolean read FAutoIndent write FAutoIndent default true;
property KeepTrailingBlanks: Boolean read FKeepTrailingBlanks write FKeepTrailingBlanks default false;
property CursorBeyondEOF: Boolean read FCursorBeyondEOF write FCursorBeyondEOF default false;
property CursorBeyondEOL: Boolean read FCursorBeyondEOL write FCursorBeyondEOL default true;
property SelForeColor: TColor read FclSelectFC write FclSelectFC;
property SelBackColor: TColor read FclSelectBC write FclSelectBC;
property StripInvisible: boolean read FStripInvisible write SetStripInvisible default false;
property WantTabs: boolean read FWantTabs write FWantTabs default true;
property WordWrap: boolean read FWordWrap write SetWordWrap default true;
property OnAfterLoad: TNotifyEvent read GetAfterLoad write SetAfterLoad;
property OnBeforeSave: TNotifyEvent read GetBeforeSave write SetBeforeSave;
property OnGetLineAttr: TOnGetLineAttr read FOnGetLineAttr write FOnGetLineAttr;
property OnChangeStatus: TOnChangeStatus read FOnChangeStatus write FOnChangeStatus;
property OnChangeClipboardState: TOnChangeClipboardState read FOnChangeClipboardState write FOnChangeClipboardState;
property OnScroll: TNotifyEvent read FOnScroll write FOnScroll;
property OnResize: TNotifyEvent read FOnResize write FOnResize;
property OnKeyDown;
property OnKeyPress;
property OnKeyUp;
property OnChange: TNotifyEvent read FOnChange write FOnChange;
property OnSelectionChange: TNotifyEvent read FOnSelectionChange write FOnSelectionChange;
property OnMouseDown;
property OnMouseMove;
property OnMouseUp;
property OnDblClick: TNotifyEvent read FOnDblClick write FOnDblClick;
property OnPaintGutter: TOnPaintGutter read FOnPaintGutter write FOnPaintGutter;
property OnMouseOver: TOnMouseOver read FOnMouseOver write FOnMouseOver;
property OnWordClick: TOnWordClick read FOnWordClick write FOnWordClick;
property OnBreakLine: TOnBreakLine read FOnBreakLine write FOnBreakLine;
property OnConcatLine: TOnConcatLine read FOnConcatLine write FOnConcatLine;
property OnTextInsert: TOnTextInsert read FOnTextInsert write FOnTextInsert;
property OnCaseConversion: TOnCaseConversion read FOnCaseConversion write FOnCaseConversion;
property OnInsertBlock: TOnInsertBlock read FOnInsertBlock write FOnInsertBlock;
property OnSaveBlock: TOnSaveBlock read FOnSaveBlock write FOnSaveBlock;
property OnInsertMacro: TOnInsertMacro read FOnInsertMacro write FOnInsertMacro;
property OnBlockOperation: TOnBlockOperation read FOnBlockOperation write FOnBlockOperation;
property OnSetCaretPos: TOnSetCaretPos read FOnSetCaretPos write FOnSetCaretPos;
property OnClipboardPaste: TOnClipboardPaste read FOnClipboardPaste write FOnClipboardPaste;
{$IFDEF MEMOEX_COMPLETION}
property OnCompletionIdentifer: TOnCompletion read FOnCompletionIdentifer write FOnCompletionIdentifer;
property OnCompletionTemplate: TOnCompletion read FOnCompletionTemplate write FOnCompletionTemplate;
property OnCompletionDrawItem: TDrawItemEvent read FOnCompletionDrawItem write FOnCompletionDrawItem;
property OnCompletionMeasureItem: TMeasureItemEvent read FOnCompletionMeasureItem write FOnCompletionMeasureItem;
property OnPreprocessCompletion: TOnPreprocessCompletion read FOnPreprocessCompletion write FOnPreprocessCompletion;
{$ENDIF MEMOEX_COMPLETION}
property DockManager;
end;
TMemoEx = class(TCustomMemoEx)
public
/// a JSON syntax highlighter
class procedure JSONLineAttr(Sender: TObject; const Line: string;
index: Integer; const SelAttrs: TSelAttrs; var Attrs: TLineAttrs);
published
property TabOrder;
property BorderStyle;
property Lines;
property ScrollBars;
property GutterWidth;
property GutterColor;
property RightMarginVisible;
property RightMargin;
property RightMarginColor;
property InsertMode;
property ReadOnly;
property DoubleClickLine;
{$IFDEF MEMOEX_COMPLETION}
property Completion;
{$ENDIF MEMOEX_COMPLETION}
property TabStops;
property SmartTab;
property BackSpaceUnindents;
property AutoIndent;
property KeepTrailingBlanks;
property CursorBeyondEOF;
property CursorBeyondEOL;
property SelForeColor;
property SelBackColor;
property Text;
property StripInvisible;
property OnAfterLoad;
property OnBeforeSave;
property OnEnter;
property OnExit;
property OnGetLineAttr;
property OnChangeStatus;
property OnChangeClipboardState;
property OnScroll;
property OnResize;
property OnKeyDown;
property OnKeyPress;
property OnKeyUp;
property OnChange;
property OnSelectionChange;
property OnMouseDown;
property OnMouseMove;
property OnMouseUp;
property OnDblClick;
property OnMouseWheel;
property OnMouseWheelDown;
property OnMouseWheelUp;
property OnPaintGutter;
property OnMouseOver;
property OnWordClick;
property OnBreakLine;
property OnConcatLine;
property OnTextInsert;
property OnCaseConversion;
property OnInsertBlock;
property OnSaveBlock;
property OnInsertMacro;
property OnBlockOperation;
property OnSetCaretPos;
{$IFDEF MEMOEX_COMPLETION}
property OnCompletionIdentifer;
property OnCompletionTemplate;
property OnCompletionDrawItem;
property OnCompletionMeasureItem;
property OnPreprocessCompletion;
{$ENDIF MEMOEX_COMPLETION}
{ TCustomControl }
property Align;
property Enabled;
property Color;
{$ifndef FPC}
property Ctl3D;
property OnCanResize;
{$endif FPC}
property Font;
property ParentColor;
property ParentFont;
property ParentShowHint;
property PopupMenu;
property ShowHint;
property TabStop;
property Visible;
property Anchors;
property AutoSize;
property BiDiMode;
property Constraints;
property UseDockManager default true;
property DockSite;
property DragKind;
property ParentBiDiMode;
property WantTabs default true;
property WordWrap default true;
property OnConstrainedResize;
property OnDockDrop;
property OnDockOver;
property OnEndDock;
property OnGetSiteInfo;
property OnStartDock;
property OnUnDock;
end;
{$IFDEF MEMOEX_COMPLETION}
TCompletionList = (cmIdentifers, cmTemplates);
TCompletion = class(TPersistent)
private
FMemoEx: TCustomMemoEx;
FPopupList: TListBox;
FAutoChange: TStrings;
FAutoChangeList: TList;
FIdentifers: TStrings;
FTemplates: TStrings;
FItems: TStringList;
FItemIndex: integer;
FMode: TCompletionList;
FDefMode: TCompletionList;
FItemHeight: integer;
FTimer: TTimer;
FEnabled: boolean;
FVisible: boolean;
FDropDownCount: integer;
FDropDownWidth: integer;
FListBoxStyle: TListBoxStyle;
FCaretChar: char;
FCRLF: string;
FSeparator: string;
function DoKeyDown(Key: Word; Shift: TShiftState): boolean;
procedure DoKeyPress(Key: Char);
procedure OnTimer(Sender: TObject);
procedure FindSelItem(var Eq: boolean);
procedure ReplaceWord(const ANewString: string);
function Cmp1(const S1, S2: string): integer;
function Cmp2(const S1, S2: string): boolean;
procedure AutoChangeChanged(Sender: TObject);
procedure ClearAutoChangeList;
procedure UpdateAutoChange;
procedure SetStrings(index: integer; AValue: TStrings);
function GetItemIndex: integer;
procedure SetItemIndex(AValue: integer);
function GetInterval: cardinal;
procedure SetInterval(AValue: cardinal);
procedure MakeItems;
function GetItems: TStrings;
public
constructor Create2(AMemoEx: TCustomMemoEx);
destructor Destroy; override;
procedure DropDown(const AMode: TCompletionList; const ShowAlways: boolean);
procedure DoCompletion(const AMode: TCompletionList);
procedure CloseUp(const Apply: boolean);
procedure SelectItem;
property ItemIndex: integer read GetItemIndex write SetItemIndex;
property Visible: boolean read FVisible write FVisible;
property Mode: TCompletionList read FMode write FMode;
property Items: TStringList read FItems;
published
property DropDownCount: integer read FDropDownCount write FDropDownCount default 6;
property DropDownWidth: integer read FDropDownWidth write FDropDownWidth default 300;
property Enabled: boolean read FEnabled write FEnabled default false;
property Separator: string read FSeparator write FSeparator;
property Identifers: TStrings index 0 read FIdentifers write SetStrings;
property Templates: TStrings index 1 read FTemplates write SetStrings;
property AutoChange: TStrings index 2 read FAutoChange write SetStrings;
property ItemHeight: integer read FItemHeight write FItemHeight;
property Interval: cardinal read GetInterval write SetInterval;
property ListBoxStyle: TListBoxStyle read FListBoxStyle write FListBoxStyle;
property CaretChar: char read FCaretChar write FCaretChar;
property CRLF: string read FCRLF write FCRLF;
end;
{$ENDIF MEMOEX_COMPLETION}
const
{ Editor commands }
ecCharFirst = $00;
ecCharLast = $FF;
ecCommandFirst = $100;
ecUser = $8000; { use this for descendants }
{Cursor}
ecLeft = ecCommandFirst + 1;
ecUp = ecLeft + 1;
ecRight = ecLeft + 2;
ecDown = ecLeft + 3;
{Cursor with select}
ecSelLeft = ecCommandFirst + 9;
ecSelUp = ecSelLeft + 1;
ecSelRight = ecSelLeft + 2;
ecSelDown = ecSelLeft + 3;
{Cursor position change according to word}
ecPrevWord = ecSelDown + 1;
ecNextWord = ecPrevWord + 1;
ecSelPrevWord = ecPrevWord + 2;
ecSelNextWord = ecPrevWord + 3;
ecSelWord = ecPrevWord + 4;
ecWindowTop = ecSelWord + 1;
ecWindowBottom = ecWindowTop + 1;
ecPrevPage = ecWindowTop + 2;
ecNextPage = ecWindowTop + 3;
ecSelPrevPage = ecWindowTop + 4;
ecSelNextPage = ecWindowTop + 5;
ecBeginLine = ecSelNextPage + 1;
ecEndLine = ecBeginLine + 1;
ecBeginDoc = ecBeginLine + 2;
ecEndDoc = ecBeginLine + 3;
ecSelBeginLine = ecBeginLine + 4;
ecSelEndLine = ecBeginLine + 5;
ecSelBeginDoc = ecBeginLine + 6;
ecSelEndDoc = ecBeginLine + 7;
ecSelAll = ecBeginLine + 8;
ecScrollLineUp = ecSelAll + 1;
ecScrollLineDown = ecScrollLineUp + 1;
ecInsertPara = ecCommandFirst + 101;
ecBackspace = ecInsertPara + 1;
ecDelete = ecInsertPara + 2;
ecChangeInsertMode = ecInsertPara + 3;
ecTab = ecInsertPara + 4;
ecBackTab = ecInsertPara + 5;
ecIndent = ecInsertPara + 6;
ecUnindent = ecInsertPara + 7;
ecDeleteSelected = ecInsertPara + 10;
ecClipboardCopy = ecInsertPara + 11;
ecClipboardCut = ecClipboardCopy + 1;
ecClipBoardPaste = ecClipboardCopy + 2;
ecDeleteLine = ecClipBoardPaste + 1;
ecDeleteWord = ecDeleteLine + 1;