1435 lines
36 KiB
Plaintext
1435 lines
36 KiB
Plaintext
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{*******************************************************}
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{ }
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{ Turbo Pascal Version 6.0 }
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{ Turbo Vision Unit }
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{ }
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{ Copyright (c) 1990 Borland International }
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{ }
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{*******************************************************}
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unit StdDlg;
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{$F+,O+,V-,X+,D-}
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interface
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uses Objects, Drivers, Views, Dialogs, Dos;
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const
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{ Commands }
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cmFileOpen = 800; { Returned from TFileDialog when Open pressed }
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cmFileReplace = 801; { Returned from TFileDialog when Replace pressed }
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cmFileClear = 802; { Returned from TFileDialog when Clear pressed }
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cmFileInit = 803; { Used by TFileDialog internally }
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cmChangeDir = 804; { Used by TChDirDialog internally }
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cmRevert = 805; { Used by TChDirDialog internally }
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{ Messages }
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cmFileFocused = 806; { A new file was focused in the TFileList }
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cmFileDoubleClicked { A file was selected in the TFileList }
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= 807;
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type
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{ TSearchRec }
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{ Record used to store directory information by TFileDialog }
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TSearchRec = record
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Attr: Byte;
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Time: Longint;
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Size: Longint;
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Name: string[12];
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end;
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type
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{ TFileInputLine is a special input line that is used by }
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{ TFileDialog that will update its contents in response to a }
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{ cmFileFocused command from a TFileList. }
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PFileInputLine = ^TFileInputLine;
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TFileInputLine = object(TInputLine)
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constructor Init(var Bounds: TRect; AMaxLen: Integer);
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procedure HandleEvent(var Event: TEvent); virtual;
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end;
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{ TFileCollection is a collection of TSearchRec's. }
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PFileCollection = ^TFileCollection;
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TFileCollection = object(TSortedCollection)
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function Compare(Key1, Key2: Pointer): Integer; virtual;
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procedure FreeItem(Item: Pointer); virtual;
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function GetItem(var S: TStream): Pointer; virtual;
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procedure PutItem(var S: TStream; Item: Pointer); virtual;
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end;
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{ TSortedListBox is a TListBox that assumes it has a }
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{ TStoredCollection instead of just a TCollection. It will }
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{ perform an incremental search on the contents. }
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PSortedListBox = ^TSortedListBox;
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TSortedListBox = object(TListBox)
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SearchPos: Word;
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ShiftState: Byte;
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constructor Init(var Bounds: TRect; ANumCols: Word;
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AScrollBar: PScrollBar);
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procedure HandleEvent(var Event: TEvent); virtual;
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function GetKey(var S: String): Pointer; virtual;
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procedure NewList(AList: PCollection); virtual;
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end;
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{ TFileList is a TSortedList box that assumes it contains }
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{ a TFileCollection as its collection. It also communicates }
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{ through broadcast messages to TFileInput and TInfoPane }
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{ what file is currently selected. }
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PFileList = ^TFileList;
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TFileList = object(TSortedListBox)
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constructor Init(var Bounds: TRect; AWildCard: PathStr;
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AScrollBar: PScrollBar);
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destructor Done; virtual;
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function DataSize: Word; virtual;
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procedure FocusItem(Item: Integer); virtual;
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procedure GetData(var Rec); virtual;
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function GetText(Item: Integer; MaxLen: Integer): String; virtual;
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function GetKey(var S: String): Pointer; virtual;
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procedure HandleEvent(var Event: TEvent); virtual;
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procedure ReadDirectory(AWildCard: PathStr);
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procedure SetData(var Rec); virtual;
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end;
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{ TFileInfoPane is a TView that displays the information }
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{ about the currently selected file in the TFileList }
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{ of a TFileDialog. }
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PFileInfoPane = ^TFileInfoPane;
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TFileInfoPane = object(TView)
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S: TSearchRec;
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constructor Init(var Bounds: TRect);
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procedure Draw; virtual;
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function GetPalette: PPalette; virtual;
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procedure HandleEvent(var Event: TEvent); virtual;
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end;
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{ TFileDialog is a standard file name input dialog }
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TWildStr = PathStr;
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const
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fdOkButton = $0001; { Put an OK button in the dialog }
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fdOpenButton = $0002; { Put an Open button in the dialog }
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fdReplaceButton = $0004; { Put a Replace button in the dialog }
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fdClearButton = $0008; { Put a Clear button in the dialog }
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fdHelpButton = $0010; { Put a Help button in the dialog }
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fdNoLoadDir = $0100; { Do not load the current directory }
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{ contents into the dialog at Init. }
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{ This means you intend to change the }
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{ WildCard by using SetData or store }
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{ the dialog on a stream. }
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type
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PFileDialog = ^TFileDialog;
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TFileDialog = object(TDialog)
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FileName: PFileInputLine;
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FileList: PFileList;
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WildCard: TWildStr;
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Directory: PString;
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constructor Init(AWildCard: TWildStr; ATitle: String;
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InputName: String; AOptions: Word; HistoryId: Byte);
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constructor Load(var S: TStream);
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destructor Done; virtual;
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procedure GetData(var Rec); virtual;
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procedure GetFileName(var S: PathStr);
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procedure HandleEvent(var Event: TEvent); virtual;
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procedure SetData(var Rec); virtual;
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procedure Store(var S: TStream);
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function Valid(Command: Word): Boolean; virtual;
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private
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procedure ReadDirectory;
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end;
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{ TDirEntry }
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PDirEntry = ^TDirEntry;
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TDirEntry = record
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DisplayText: PString;
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Directory: PString;
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end;
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{ TDirCollection is a collection of TDirEntry's used by }
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{ TDirListBox. }
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PDirCollection = ^TDirCollection;
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TDirCollection = object(TCollection)
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function GetItem(var S: TStream): Pointer; virtual;
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procedure FreeItem(Item: Pointer); virtual;
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procedure PutItem(var S: TStream; Item: Pointer); virtual;
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end;
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{ TDirListBox displays a tree of directories for use in the }
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{ TChDirDialog. }
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PDirListBox = ^TDirListBox;
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TDirListBox = object(TListBox)
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Dir: DirStr;
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Cur: Word;
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constructor Init(var Bounds: TRect; AScrollBar: PScrollBar);
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destructor Done; virtual;
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function GetText(Item: Integer; MaxLen: Integer): String; virtual;
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procedure HandleEvent(var Event: TEvent); virtual;
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function IsSelected(Item: Integer): Boolean; virtual;
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procedure NewDirectory(var ADir: DirStr);
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procedure SetState(AState: Word; Enable: Boolean); virtual;
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end;
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{ TChDirDialog is a standard change directory dialog. }
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const
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cdNormal = $0000; { Option to use dialog immediately }
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cdNoLoadDir = $0001; { Option to init the dialog to store on a stream }
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cdHelpButton = $0002; { Put a help button in the dialog }
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type
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PChDirDialog = ^TChDirDialog;
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TChDirDialog = object(TDialog)
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DirInput: PInputLine;
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DirList: PDirListBox;
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OkButton: PButton;
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ChDirButton: PButton;
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constructor Init(AOptions: Word; HistoryId: Word);
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constructor Load(var S: TStream);
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function DataSize: Word; virtual;
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procedure GetData(var Rec); virtual;
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procedure HandleEvent(var Event: TEvent); virtual;
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procedure SetData(var Rec); virtual;
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procedure Store(var S: TStream);
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function Valid(Command: Word): Boolean; virtual;
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private
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procedure SetUpDialog;
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end;
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const
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CInfoPane = #30;
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{ TStream registration records }
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RFileInputLine: TStreamRec = (
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ObjType: 60;
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VmtLink: Ofs(TypeOf(TFileInputLine)^);
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Load: @TFileInputLine.Load;
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Store: @TFileInputLine.Store
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);
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RFileCollection: TStreamRec = (
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ObjType: 61;
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VmtLink: Ofs(TypeOf(TFileCollection)^);
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Load: @TFileCollection.Load;
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Store: @TFileCollection.Store
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);
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RFileList: TStreamRec = (
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ObjType: 62;
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VmtLink: Ofs(TypeOf(TFileList)^);
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Load: @TFileList.Load;
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Store: @TFileList.Store
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);
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RFileInfoPane: TStreamRec = (
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ObjType: 63;
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VmtLink: Ofs(TypeOf(TFileInfoPane)^);
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Load: @TFileInfoPane.Load;
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Store: @TFileInfoPane.Store
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);
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RFileDialog: TStreamRec = (
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ObjType: 64;
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VmtLink: Ofs(TypeOf(TFileDialog)^);
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Load: @TFileDialog.Load;
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Store: @TFileDialog.Store
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);
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RDirCollection: TStreamRec = (
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ObjType: 65;
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VmtLink: Ofs(TypeOf(TDirCollection)^);
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Load: @TDirCollection.Load;
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Store: @TDirCollection.Store
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);
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RDirListBox: TStreamRec = (
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ObjType: 66;
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VmtLink: Ofs(TypeOf(TDirListBox)^);
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Load: @TDirListBox.Load;
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Store: @TDirListBox.Store
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);
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RChDirDialog: TStreamRec = (
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ObjType: 67;
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VmtLink: Ofs(TypeOf(TChDirDialog)^);
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Load: @TChDirDialog.Load;
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Store: @TChDirDialog.Store
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);
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procedure RegisterStdDlg;
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implementation
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uses App, Memory, HistList, MsgBox;
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function DriveValid(Drive: Char): Boolean; assembler;
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asm
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MOV DL,Drive
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MOV AH,36H
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SUB DL,'A'-1
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INT 21H
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INC AX
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JE @@2
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@@1: MOV AL,1
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@@2:
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end;
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function PathValid(var Path: PathStr): Boolean;
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var
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ExpPath: PathStr;
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F: File;
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SR: SearchRec;
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begin
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ExpPath := FExpand(Path);
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if Length(ExpPath) <= 3 then PathValid := DriveValid(ExpPath[1])
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else
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begin
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if ExpPath[Length(ExpPath)] = '\' then Dec(ExpPath[0]);
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FindFirst(ExpPath, Directory, SR);
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PathValid := (DosError = 0) and (SR.Attr and Directory <> 0);
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end;
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end;
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function ValidFileName(var FileName: PathStr): Boolean;
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const
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IllegalChars = ';,=+<>|"[] \';
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var
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Dir: DirStr;
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Name: NameStr;
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Ext: ExtStr;
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{ Contains returns true if S1 contains any characters in S2 }
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function Contains(S1, S2: String): Boolean; near; assembler;
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asm
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PUSH DS
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CLD
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LDS SI,S1
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LES DI,S2
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MOV DX,DI
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XOR AH,AH
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LODSB
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MOV BX,AX
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OR BX,BX
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JZ @@2
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MOV AL,ES:[DI]
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XCHG AX,CX
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@@1: PUSH CX
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MOV DI,DX
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LODSB
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REPNE SCASB
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POP CX
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JE @@3
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DEC BX
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JNZ @@1
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@@2: XOR AL,AL
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JMP @@4
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@@3: MOV AL,1
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@@4: POP DS
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end;
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begin
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ValidFileName := True;
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FSplit(FileName, Dir, Name, Ext);
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if not ((Dir = '') or PathValid(Dir)) or Contains(Name, IllegalChars) or
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Contains(Dir, IllegalChars) then ValidFileName := False;
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end;
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function GetCurDir: DirStr;
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var
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CurDir: DirStr;
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begin
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GetDir(0, CurDir);
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if Length(CurDir) > 3 then
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begin
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Inc(CurDir[0]);
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CurDir[Length(CurDir)] := '\';
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end;
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GetCurDir := CurDir;
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end;
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type
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PSearchRec = ^TSearchRec;
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function IsWild(var S: String): Boolean;
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begin
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IsWild := (Pos('?',S) > 0) or (Pos('*',S) > 0);
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end;
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function IsDir(var S: String): Boolean;
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var
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SR: SearchRec;
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begin
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FindFirst(S, Directory, SR);
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if DosError = 0 then
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IsDir := SR.Attr and Directory <> 0
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else IsDir := False;
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end;
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{ TFileInputLine }
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constructor TFileInputLine.Init(var Bounds: TRect; AMaxLen: Integer);
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begin
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TInputLine.Init(Bounds, AMaxLen);
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EventMask := EventMask or evBroadcast;
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end;
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procedure TFileInputLine.HandleEvent(var Event: TEvent);
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var
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Dir: DirStr;
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Name: NameStr;
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Ext: ExtStr;
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begin
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TInputLine.HandleEvent(Event);
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if (Event.What = evBroadcast) and (Event.Command = cmFileFocused) and
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(State and sfSelected = 0) then
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begin
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if PSearchRec(Event.InfoPtr)^.Attr and Directory <> 0 then
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Data^ := PSearchRec(Event.InfoPtr)^.Name + '\'+
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PFileDialog(Owner)^.WildCard
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else Data^ := PSearchRec(Event.InfoPtr)^.Name;
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DrawView;
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end;
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end;
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{ TFileCollection }
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function TFileCollection.Compare(Key1, Key2: Pointer): Integer;
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begin
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if PSearchRec(Key1)^.Name = PSearchRec(Key2)^.Name then Compare := 0
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else if PSearchRec(Key1)^.Name = '..' then Compare := 1
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else if PSearchRec(Key2)^.Name = '..' then Compare := -1
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else if (PSearchRec(Key1)^.Attr and Directory <> 0) and
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(PSearchRec(Key2)^.Attr and Directory = 0) then Compare := 1
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else if (PSearchRec(Key2)^.Attr and Directory <> 0) and
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(PSearchRec(Key1)^.Attr and Directory = 0) then Compare := -1
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else if PSearchRec(Key1)^.Name > PSearchRec(Key2)^.Name then
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Compare := 1
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else Compare := -1;
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end;
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procedure TFileCollection.FreeItem(Item: Pointer);
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begin
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Dispose(PSearchRec(Item));
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end;
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function TFileCollection.GetItem(var S: TStream): Pointer;
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var
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Item: PSearchRec;
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begin
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New(Item);
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S.Read(Item^, SizeOf(TSearchRec));
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GetItem := Item;
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end;
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procedure TFileCollection.PutItem(var S: TStream; Item: Pointer);
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begin
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S.Write(Item^, SizeOf(TSearchRec));
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end;
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{ TSortedListBox }
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constructor TSortedListBox.Init(var Bounds: TRect; ANumCols: Word;
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AScrollBar: PScrollBar);
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begin
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TListBox.Init(Bounds, ANumCols, AScrollBar);
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SearchPos := 0;
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ShowCursor;
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SetCursor(1,0);
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end;
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procedure TSortedListBox.HandleEvent(var Event: TEvent);
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var
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ShiftKeys: Byte absolute $40:$17;
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CurString, NewString: String;
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K: Pointer;
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Value, OldPos, OldValue: Integer;
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T: Boolean;
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function Equal(var S1: String; var S2: String; Count: Word): Boolean;
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var
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I: Word;
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begin
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Equal := False;
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if (Length(S1) < Count) or (Length(S2) < Count) then Exit;
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for I := 1 to Count do
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if UpCase(S1[I]) <> UpCase(S2[I]) then Exit;
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Equal := True;
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end;
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begin
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OldValue := Focused;
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TListBox.HandleEvent(Event);
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if OldValue <> Focused then SearchPos := 0;
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if Event.What = evKeyDown then
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begin
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if Event.CharCode <> #0 then
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begin
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Value := Focused;
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if Value < Range then CurString := GetText(Value, 255)
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else CurString := '';
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OldPos := SearchPos;
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if Event.KeyCode = kbBack then
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begin
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if SearchPos = 0 then Exit;
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Dec(SearchPos);
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if SearchPos = 0 then ShiftState := ShiftKeys;
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CurString[0] := Char(SearchPos);
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end
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else if (Event.CharCode = '.') then SearchPos := Pos('.',CurString)
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else
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begin
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Inc(SearchPos);
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if SearchPos = 1 then ShiftState := ShiftKeys;
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CurString[0] := Char(SearchPos);
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CurString[SearchPos] := Event.CharCode;
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end;
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K := GetKey(CurString);
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T := PSortedCollection(List)^.Search(K, Value);
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if Value < Range then
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begin
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if Value < Range then NewString := GetText(Value, 255)
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else NewString := '';
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if Equal(NewString, CurString, SearchPos) then
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begin
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if Value <> OldValue then
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begin
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FocusItem(Value);
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{ Assumes ListControl will set the cursor to the first character }
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{ of the sfFocused item }
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SetCursor(Cursor.X+SearchPos, Cursor.Y);
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end
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else SetCursor(Cursor.X+(SearchPos-OldPos), Cursor.Y);
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end
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else SearchPos := OldPos;
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end
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else SearchPos := OldPos;
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if (SearchPos <> OldPos) or (Event.CharCode in ['A'..'Z','a'..'z']) then
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ClearEvent(Event);
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end;
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end;
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end;
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function TSortedListBox.GetKey(var S: String): Pointer;
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begin
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GetKey := @S;
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end;
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procedure TSortedListBox.NewList(AList: PCollection);
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begin
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TListBox.NewList(AList);
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SearchPos := 0;
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end;
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{ TFileList }
|
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|
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constructor TFileList.Init(var Bounds: TRect; AWildCard: PathStr;
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AScrollBar: PScrollBar);
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begin
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TSortedListBox.Init(Bounds, 2, AScrollBar);
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end;
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|
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destructor TFileList.Done;
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begin
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if List <> nil then Dispose(List, Done);
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TListBox.Done;
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end;
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function TFileList.DataSize: Word;
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begin
|
||
DataSize := 0;
|
||
end;
|
||
|
||
procedure TFileList.FocusItem(Item: Integer);
|
||
begin
|
||
TSortedListBox.FocusItem(Item);
|
||
Message(Owner, evBroadcast, cmFileFocused, List^.At(Item));
|
||
end;
|
||
|
||
procedure TFileList.GetData(var Rec);
|
||
begin
|
||
end;
|
||
|
||
function TFileList.GetKey(var S: String): Pointer;
|
||
const
|
||
SR: TSearchRec = ();
|
||
|
||
procedure UpStr(var S: String);
|
||
var
|
||
I: Integer;
|
||
begin
|
||
for I := 1 to Length(S) do S[I] := UpCase(S[I]);
|
||
end;
|
||
|
||
begin
|
||
if (ShiftState and $03 <> 0) or ((S <> '') and (S[1]='.')) then
|
||
SR.Attr := Directory
|
||
else SR.Attr := 0;
|
||
SR.Name := S;
|
||
UpStr(SR.Name);
|
||
GetKey := @SR;
|
||
end;
|
||
|
||
function TFileList.GetText(Item: Integer; MaxLen: Integer): String;
|
||
var
|
||
S: String;
|
||
SR: PSearchRec;
|
||
begin
|
||
SR := PSearchRec(List^.At(Item));
|
||
S := SR^.Name;
|
||
if SR^.Attr and Directory <> 0 then
|
||
begin
|
||
S[Length(S)+1] := '\';
|
||
Inc(S[0]);
|
||
end;
|
||
GetText := S;
|
||
end;
|
||
|
||
procedure TFileList.HandleEvent(var Event: TEvent);
|
||
begin
|
||
if (Event.What = evMouseDown) and (Event.Double) then
|
||
begin
|
||
Event.What := evCommand;
|
||
Event.Command := cmOK;
|
||
PutEvent(Event);
|
||
ClearEvent(Event);
|
||
end
|
||
else TSortedListBox.HandleEvent(Event);
|
||
end;
|
||
|
||
procedure TFileList.ReadDirectory(AWildCard: PathStr);
|
||
const
|
||
FindAttr = ReadOnly + Archive;
|
||
AllFiles = '*.*';
|
||
PrevDir = '..';
|
||
var
|
||
S: SearchRec;
|
||
P: PSearchRec;
|
||
FileList: PFileCollection;
|
||
NumFiles: Word;
|
||
CurPath: PathStr;
|
||
Dir: DirStr;
|
||
Name: NameStr;
|
||
Ext: ExtStr;
|
||
Event: TEvent;
|
||
Tmp: PathStr;
|
||
Flag: Integer;
|
||
begin
|
||
NumFiles := 0;
|
||
AWildCard := FExpand(AWildCard);
|
||
FSplit(AWildCard, Dir, Name, Ext);
|
||
FileList := New(PFileCollection, Init(5, 5));
|
||
FindFirst(AWildCard, FindAttr, S);
|
||
P := @P;
|
||
while (P <> nil) and (DosError = 0) do
|
||
begin
|
||
if (S.Attr and Directory = 0) then
|
||
begin
|
||
P := MemAlloc(SizeOf(P^));
|
||
if P <> nil then
|
||
begin
|
||
Move(S.Attr, P^, SizeOf(P^));
|
||
FileList^.Insert(P);
|
||
end;
|
||
end;
|
||
FindNext(S);
|
||
end;
|
||
Tmp := Dir + AllFiles;
|
||
FindFirst(Tmp, Directory, S);
|
||
while (P <> nil) and (DosError = 0) do
|
||
begin
|
||
if (S.Attr and Directory <> 0) and (S.Name[1] <> '.') then
|
||
begin
|
||
P := MemAlloc(SizeOf(P^));
|
||
if P <> nil then
|
||
begin
|
||
Move(S.Attr, P^, SizeOf(P^));
|
||
FileList^.Insert(PObject(P));
|
||
end;
|
||
end;
|
||
FindNext(S);
|
||
end;
|
||
if Length(Dir) > 4 then
|
||
begin
|
||
P := MemAlloc(SizeOf(P^));
|
||
if P <> nil then
|
||
begin
|
||
FindFirst(Tmp, Directory, S);
|
||
FindNext(S);
|
||
if (DosError = 0) and (S.Name = PrevDir) then
|
||
Move(S.Attr, P^, SizeOf(P^))
|
||
else
|
||
begin
|
||
P^.Name := PrevDir;
|
||
P^.Size := 0;
|
||
P^.Time := $210000;
|
||
P^.Attr := Directory;
|
||
end;
|
||
FileList^.Insert(PObject(P));
|
||
end;
|
||
end;
|
||
if P = nil then MessageBox('Too many files.', nil, mfOkButton + mfWarning);
|
||
NewList(FileList);
|
||
if List^.Count > 0 then
|
||
begin
|
||
Event.What := evBroadcast;
|
||
Event.Command := cmFileFocused;
|
||
Event.InfoPtr := List^.At(0);
|
||
Owner^.HandleEvent(Event);
|
||
end;
|
||
end;
|
||
|
||
procedure TFileList.SetData(var Rec);
|
||
begin
|
||
with PFileDialog(Owner)^ do
|
||
Self.ReadDirectory(Directory^ + WildCard);
|
||
end;
|
||
|
||
{ TFileInfoPane }
|
||
|
||
constructor TFileInfoPane.Init(var Bounds: TRect);
|
||
begin
|
||
TView.Init(Bounds);
|
||
EventMask := EventMask or evBroadcast;
|
||
end;
|
||
|
||
procedure TFileInfoPane.Draw;
|
||
var
|
||
B: TDrawBuffer;
|
||
D: String[9];
|
||
M: String[3];
|
||
PM: Boolean;
|
||
Color: Word;
|
||
Time: DateTime;
|
||
Path: PathStr;
|
||
FmtId: String;
|
||
Params: array[0..7] of LongInt;
|
||
Str: String[80];
|
||
const
|
||
sDirectoryLine = ' %-12s %-9s %3s %2d, %4d %2d:%02d%cm';
|
||
sFileLine = ' %-12s %-9d %3s %2d, %4d %2d:%02d%cm';
|
||
Month: array[1..12] of String[3] =
|
||
('Jan','Feb','Mar','Apr','May','Jun',
|
||
'Jul','Aug','Sep','Oct','Nov','Dec');
|
||
begin
|
||
{ Display path }
|
||
Path := FExpand(PFileDialog(Owner)^.Directory^+PFileDialog(Owner)^.WildCard);
|
||
Color := GetColor($01);
|
||
MoveChar(B, ' ', Color, Size.X);
|
||
MoveStr(B[1], Path, Color);
|
||
WriteLine(0, 0, Size.X, 1, B);
|
||
|
||
{ Display file }
|
||
Params[0] := LongInt(@S.Name);
|
||
MoveChar(B, ' ', Color, Size.X);
|
||
Params[0] := LongInt(@S.Name);
|
||
if S.Attr and Directory <> 0 then
|
||
begin
|
||
FmtId := sDirectoryLine;
|
||
D := 'Directory';
|
||
Params[1] := LongInt(@D);
|
||
end else
|
||
begin
|
||
FmtId := sFileLine;
|
||
Params[1] := S.Size;
|
||
end;
|
||
UnpackTime(S.Time, Time);
|
||
M := Month[Time.Month];
|
||
Params[2] := LongInt(@M);
|
||
Params[3] := Time.Day;
|
||
Params[4] := Time.Year;
|
||
PM := Time.Hour >= 12;
|
||
Time.Hour := Time.Hour mod 12;
|
||
if Time.Hour = 0 then Time.Hour := 12;
|
||
Params[5] := Time.Hour;
|
||
Params[6] := Time.Min;
|
||
if PM then Params[7] := Byte('p')
|
||
else Params[7] := Byte('a');
|
||
FormatStr(Str, FmtId, Params);
|
||
MoveStr(B, Str, Color);
|
||
WriteLine(0, 1, Size.X, 1, B);
|
||
|
||
{ Fill in rest of rectangle }
|
||
MoveChar(B, ' ', Color, Size.X);
|
||
WriteLine(0, 2, Size.X, Size.Y-2, B);
|
||
end;
|
||
|
||
function TFileInfoPane.GetPalette: PPalette;
|
||
const
|
||
P: String[Length(CInfoPane)] = CInfoPane;
|
||
begin
|
||
GetPalette := @P;
|
||
end;
|
||
|
||
procedure TFileInfoPane.HandleEvent(var Event: TEvent);
|
||
begin
|
||
TView.HandleEvent(Event);
|
||
if (Event.What = evBroadcast) and (Event.Command = cmFileFocused) then
|
||
begin
|
||
S := PSearchRec(Event.InfoPtr)^;
|
||
DrawView;
|
||
end;
|
||
end;
|
||
|
||
{ TFileDialog }
|
||
|
||
constructor TFileDialog.Init(AWildCard: TWildStr; ATitle: String;
|
||
InputName: String; AOptions: Word; HistoryId: Byte);
|
||
var
|
||
Control: PView;
|
||
R: TRect;
|
||
S: String;
|
||
Opt: Word;
|
||
ACurDir: PathStr;
|
||
begin
|
||
R.Assign(15,1,64,20);
|
||
TDialog.Init(R, ATitle);
|
||
Options := Options or ofCentered;
|
||
WildCard := AWildCard;
|
||
|
||
R.Assign(3,3,31,4);
|
||
FileName := New(PFileInputLine, Init(R, 79));
|
||
FileName^.Data^ := WildCard;
|
||
Insert(FileName);
|
||
R.Assign(2,2,3+CStrLen(InputName),3);
|
||
Control := New(PLabel, Init(R, InputName, FileName));
|
||
Insert(Control);
|
||
R.Assign(31,3,34,4);
|
||
Control := New(PHistory, Init(R, FileName, HistoryId));
|
||
Insert(Control);
|
||
|
||
R.Assign(3,14,34,15);
|
||
Control := New(PScrollBar, Init(R));
|
||
Insert(Control);
|
||
R.Assign(3,6,34,14);
|
||
FileList := New(PFileList, Init(R, WildCard, PScrollBar(Control)));
|
||
Insert(FileList);
|
||
R.Assign(2,5,8,6);
|
||
Control := New(PLabel, Init(R, '~F~iles', FileList));
|
||
Insert(Control);
|
||
|
||
R.Assign(35,3,46,5);
|
||
Opt := bfDefault;
|
||
if AOptions and fdOpenButton <> 0 then
|
||
begin
|
||
Insert(New(PButton, Init(R, '~O~pen', cmFileOpen, Opt)));
|
||
Opt := bfNormal;
|
||
Inc(R.A.Y,3); Inc(R.B.Y,3);
|
||
end;
|
||
if AOptions and fdOkButton <> 0 then
|
||
begin
|
||
Insert(New(PButton, Init(R, 'O~K~', cmFileOpen, Opt)));
|
||
Opt := bfNormal;
|
||
Inc(R.A.Y,3); Inc(R.B.Y,3);
|
||
end;
|
||
if AOptions and fdReplaceButton <> 0 then
|
||
begin
|
||
Insert(New(PButton, Init(R, '~R~eplace',cmFileReplace, Opt)));
|
||
Opt := bfNormal;
|
||
Inc(R.A.Y,3); Inc(R.B.Y,3);
|
||
end;
|
||
if AOptions and fdClearButton <> 0 then
|
||
begin
|
||
Insert(New(PButton, Init(R, '~C~lear',cmFileClear, Opt)));
|
||
Opt := bfNormal;
|
||
Inc(R.A.Y,3); Inc(R.B.Y,3);
|
||
end;
|
||
Insert(New(PButton, Init(R, 'Cancel', cmCancel, bfNormal)));
|
||
Inc(R.A.Y,3); Inc(R.B.Y,3);
|
||
if AOptions and fdHelpButton <> 0 then
|
||
begin
|
||
Insert(New(PButton, Init(R, 'Help',cmHelp, bfNormal)));
|
||
Inc(R.A.Y,3); Inc(R.B.Y,3);
|
||
end;
|
||
|
||
R.Assign(1,16,48,18);
|
||
Control := New(PFileInfoPane, Init(R));
|
||
Insert(Control);
|
||
|
||
SelectNext(False);
|
||
|
||
if AOptions and fdNoLoadDir = 0 then ReadDirectory;
|
||
end;
|
||
|
||
constructor TFileDialog.Load(var S: TStream);
|
||
var
|
||
ACurDir: DirStr;
|
||
ViewId: Word;
|
||
begin
|
||
TDialog.Load(S);
|
||
S.Read(WildCard, SizeOf(TWildStr));
|
||
GetSubViewPtr(S, FileName);
|
||
GetSubViewPtr(S, FileList);
|
||
|
||
ReadDirectory;
|
||
end;
|
||
|
||
destructor TFileDialog.Done;
|
||
begin
|
||
DisposeStr(Directory);
|
||
TDialog.Done;
|
||
end;
|
||
|
||
procedure TFileDialog.GetData(var Rec);
|
||
begin
|
||
GetFilename(PathStr(Rec));
|
||
end;
|
||
|
||
procedure TFileDialog.GetFileName(var S: PathStr);
|
||
var
|
||
Path: PathStr;
|
||
Name: NameStr;
|
||
Ext: ExtStr;
|
||
TPath: PathStr;
|
||
TName: NameStr;
|
||
TExt: NameStr;
|
||
|
||
function LTrim(S: String): String;
|
||
var
|
||
I: Integer;
|
||
begin
|
||
I := 1;
|
||
while (I < Length(S)) and (S[I] = ' ') do Inc(I);
|
||
LTrim := Copy(S, I, 255);
|
||
end;
|
||
|
||
function RTrim(S: String): String;
|
||
var
|
||
I: Integer;
|
||
begin
|
||
while S[Length(S)] = ' ' do Dec(S[0]);
|
||
RTrim := S;
|
||
end;
|
||
|
||
function RelativePath(var S: PathStr): Boolean;
|
||
var
|
||
I,J: Integer;
|
||
P: PathStr;
|
||
begin
|
||
S := LTrim(RTrim(S));
|
||
if (S <> '') and ((S[1] = '\') or (S[2] = ':')) then RelativePath := False
|
||
else RelativePath := True;
|
||
end;
|
||
|
||
function NoWildChars(S: String): String; assembler;
|
||
asm
|
||
PUSH DS
|
||
LDS SI,S
|
||
XOR AX,AX
|
||
LODSB
|
||
XCHG AX,CX
|
||
LES DI,@Result
|
||
INC DI
|
||
@@1: LODSB
|
||
CMP AL,'?'
|
||
JE @@2
|
||
CMP AL,'*'
|
||
JE @@2
|
||
STOSB
|
||
@@2: LOOP @@1
|
||
XCHG AX,DI
|
||
MOV DI,WORD PTR @Result
|
||
SUB AX,DI
|
||
DEC AX
|
||
STOSB
|
||
POP DS
|
||
end;
|
||
|
||
begin
|
||
S := FileName^.Data^;
|
||
if RelativePath(S) then S := FExpand(Directory^ + S)
|
||
else S := FExpand(S);
|
||
FSplit(S, Path, Name, Ext);
|
||
if ((Name = '') or (Ext = '')) and not IsDir(S) then
|
||
begin
|
||
FSplit(WildCard, TPath, TName, TExt);
|
||
if ((Name = '') and (Ext = '')) then S := Path + TName + TExt
|
||
else if Name = '' then S := Path + TName + Ext
|
||
else if Ext = '' then
|
||
begin
|
||
if IsWild(Name) then S := Path + Name + TExt
|
||
else S := Path + Name + NoWildChars(TExt);
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
procedure TFileDialog.HandleEvent(var Event: TEvent);
|
||
begin
|
||
TDialog.HandleEvent(Event);
|
||
if Event.What = evCommand then
|
||
case Event.Command of
|
||
cmFileOpen, cmFileReplace, cmFileClear:
|
||
begin
|
||
EndModal(Event.Command);
|
||
ClearEvent(Event);
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
procedure TFileDialog.SetData(var Rec);
|
||
begin
|
||
TDialog.SetData(Rec);
|
||
if (PathStr(Rec) <> '') and (IsWild(TWildStr(Rec))) then
|
||
begin
|
||
Valid(cmFileInit);
|
||
FileName^.Select;
|
||
end;
|
||
end;
|
||
|
||
procedure TFileDialog.ReadDirectory;
|
||
begin
|
||
FileList^.ReadDirectory(WildCard);
|
||
Directory := NewStr(GetCurDir);
|
||
end;
|
||
|
||
procedure TFileDialog.Store(var S: TStream);
|
||
begin
|
||
TDialog.Store(S);
|
||
S.Write(WildCard, SizeOf(TWildStr));
|
||
PutSubViewPtr(S, FileName);
|
||
PutSubViewPtr(S, FileList);
|
||
end;
|
||
|
||
function TFileDialog.Valid(Command: Word): Boolean;
|
||
var
|
||
T: Boolean;
|
||
FName: PathStr;
|
||
Dir: DirStr;
|
||
Name: NameStr;
|
||
Ext: ExtStr;
|
||
|
||
function CheckDirectory(var S: PathStr): Boolean;
|
||
begin
|
||
if not PathValid(S) then
|
||
begin
|
||
MessageBox('Invalid drive or directory.', nil, mfError + mfOkButton);
|
||
FileName^.Select;
|
||
CheckDirectory := False;
|
||
end else CheckDirectory := True;
|
||
end;
|
||
|
||
begin
|
||
if Command = 0 then
|
||
begin
|
||
Valid := True;
|
||
Exit;
|
||
end else Valid := False;
|
||
if TDialog.Valid(Command) then
|
||
begin
|
||
GetFileName(FName);
|
||
if (Command <> cmCancel) and (Command <> cmFileClear) then
|
||
begin
|
||
if IsWild(FName) then
|
||
begin
|
||
FSplit(FName, Dir, Name, Ext);
|
||
if CheckDirectory(Dir) then
|
||
begin
|
||
DisposeStr(Directory);
|
||
Directory := NewStr(Dir);
|
||
WildCard := Name+Ext;
|
||
if Command <> cmFileInit then FileList^.Select;
|
||
FileList^.ReadDirectory(Directory^+WildCard);
|
||
end
|
||
end
|
||
else if IsDir(FName) then
|
||
begin
|
||
if CheckDirectory(FName) then
|
||
begin
|
||
DisposeStr(Directory);
|
||
Directory := NewSTr(FName+'\');
|
||
if Command <> cmFileInit then FileList^.Select;
|
||
FileList^.ReadDirectory(Directory^+WildCard);
|
||
end
|
||
end else if ValidFileName(FName) then Valid := True
|
||
else
|
||
begin
|
||
MessageBox('Invalid file name.', nil, mfError + mfOkButton);
|
||
Valid := False;
|
||
end
|
||
end
|
||
else Valid := True;
|
||
end;
|
||
end;
|
||
|
||
{ TDirCollection }
|
||
|
||
function TDirCollection.GetItem(var S: TStream): Pointer;
|
||
var
|
||
DirItem: PDirEntry;
|
||
begin
|
||
New(DirItem);
|
||
DirItem^.DisplayText := S.ReadStr;
|
||
DirItem^.Directory := S.ReadStr;
|
||
GetItem := DirItem;
|
||
end;
|
||
|
||
procedure TDirCollection.FreeItem(Item: Pointer);
|
||
var
|
||
DirItem: PDirEntry absolute Item;
|
||
begin
|
||
DisposeStr(DirItem^.DisplayText);
|
||
DisposeStr(DirItem^.Directory);
|
||
Dispose(DirItem);
|
||
end;
|
||
|
||
procedure TDirCollection.PutItem(var S: TStream; Item: Pointer);
|
||
var
|
||
DirItem: PDirEntry absolute Item;
|
||
begin
|
||
S.WriteStr(DirItem^.DisplayText);
|
||
S.WriteStr(DirItem^.Directory);
|
||
end;
|
||
|
||
{ TDirListBox }
|
||
|
||
const
|
||
DrivesS: String[6] = 'Drives';
|
||
Drives: PString = @DrivesS;
|
||
|
||
constructor TDirListBox.Init(var Bounds: TRect; AScrollBar:
|
||
PScrollBar);
|
||
begin
|
||
TListBox.Init(Bounds, 1, AScrollBar);
|
||
Dir := '';
|
||
end;
|
||
|
||
destructor TDirListBox.Done;
|
||
begin
|
||
if List <> nil then Dispose(List, Done);
|
||
TListBox.Done;
|
||
end;
|
||
|
||
function TDirListBox.GetText(Item: Integer; MaxLen: Integer): String;
|
||
begin
|
||
GetText := PDirEntry(List^.At(Item))^.DisplayText^;
|
||
end;
|
||
|
||
procedure TDirListBox.HandleEvent(var Event: TEvent);
|
||
begin
|
||
if (Event.What = evMouseDown) and (Event.Double) then
|
||
begin
|
||
Event.What := evCommand;
|
||
Event.Command := cmChangeDir;
|
||
PutEvent(Event);
|
||
ClearEvent(Event);
|
||
end
|
||
else TListBox.HandleEvent(Event);
|
||
end;
|
||
|
||
function TDirListBox.IsSelected(Item: Integer): Boolean;
|
||
begin
|
||
IsSelected := Item = Cur;
|
||
end;
|
||
|
||
procedure TDirListBox.NewDirectory(var ADir: DirStr);
|
||
const
|
||
PathDir = '<27><><EFBFBD>';
|
||
FirstDir = '<27><><EFBFBD>';
|
||
MiddleDir = ' <20><>';
|
||
LastDir = ' <20><>';
|
||
IndentSize = ' ';
|
||
var
|
||
AList: PCollection;
|
||
NewDir, Dirct: DirStr;
|
||
C, OldC: Char;
|
||
S, Indent: String[80];
|
||
P: PString;
|
||
isFirst: Boolean;
|
||
SR: SearchRec;
|
||
I: Integer;
|
||
DirEntry: PDirEntry;
|
||
|
||
function NewDirEntry(DisplayText, Directory: String): PDirEntry; near;
|
||
var
|
||
DirEntry: PDirEntry;
|
||
begin
|
||
New(DirEntry);
|
||
DirEntry^.DisplayText := NewStr(DisplayText);
|
||
DirEntry^.Directory := NewStr(Directory);
|
||
NewDirEntry := DirEntry;
|
||
end;
|
||
|
||
function GetCurDrive: Char; assembler;
|
||
asm
|
||
MOV AH,19H
|
||
INT 21H
|
||
ADD AL,'A'
|
||
end;
|
||
|
||
begin
|
||
Dir := ADir;
|
||
AList := New(PDirCollection, Init(5,5));
|
||
AList^.Insert(NewDirEntry(Drives^,Drives^));
|
||
if Dir = Drives^ then
|
||
begin
|
||
isFirst := True;
|
||
OldC := ' ';
|
||
for C := 'A' to 'Z' do
|
||
begin
|
||
if (C < 'C') or DriveValid(C) then
|
||
begin
|
||
if OldC <> ' ' then
|
||
begin
|
||
if isFirst then
|
||
begin
|
||
S := FirstDir + OldC;
|
||
isFirst := False;
|
||
end
|
||
else S := MiddleDir + OldC;
|
||
AList^.Insert(NewDirEntry(S, OldC + ':\'));
|
||
end;
|
||
if C = GetCurDrive then Cur := AList^.Count;
|
||
OldC := C;
|
||
end;
|
||
end;
|
||
if OldC <> ' ' then AList^.Insert(NewDirEntry(LastDir + OldC, OldC + ':\'));
|
||
end
|
||
else
|
||
begin
|
||
Indent := IndentSize;
|
||
NewDir := Dir;
|
||
Dirct := Copy(NewDir,1,3);
|
||
AList^.Insert(NewDirEntry(PathDir + Dirct, Dirct));
|
||
NewDir := Copy(NewDir,4,255);
|
||
while NewDir <> '' do
|
||
begin
|
||
I := Pos('\',NewDir);
|
||
if I <> 0 then
|
||
begin
|
||
S := Copy(NewDir,1,I-1);
|
||
Dirct := Dirct + S;
|
||
AList^.Insert(NewDirEntry(Indent + PathDir + S, Dirct));
|
||
NewDir := Copy(NewDir,I+1,255);
|
||
end
|
||
else
|
||
begin
|
||
Dirct := Dirct + NewDir;
|
||
AList^.Insert(NewDirEntry(Indent + PathDir + NewDir, Dirct));
|
||
NewDir := '';
|
||
end;
|
||
Indent := Indent + IndentSize;
|
||
Dirct := Dirct + '\';
|
||
end;
|
||
Cur := AList^.Count-1;
|
||
isFirst := True;
|
||
NewDir := Dirct + '*.*';
|
||
FindFirst(NewDir, Directory, SR);
|
||
while DosError = 0 do
|
||
begin
|
||
if (SR.Attr and Directory <> 0) and (SR.Name[1] <> '.') then
|
||
begin
|
||
if isFirst then
|
||
begin
|
||
S := FirstDir;
|
||
isFirst := False;
|
||
end else S := MiddleDir;
|
||
AList^.Insert(NewDirEntry(Indent + S + SR.Name, Dirct + SR.Name));
|
||
end;
|
||
FindNext(SR);
|
||
end;
|
||
P := PDirEntry(AList^.At(AList^.Count-1))^.DisplayText;
|
||
I := Pos('<27>',P^);
|
||
if I = 0 then
|
||
begin
|
||
I := Pos('<27>',P^);
|
||
if I <> 0 then P^[I] := '<27>';
|
||
end else
|
||
begin
|
||
P^[I+1] := '<27>';
|
||
P^[I+2] := '<27>';
|
||
end;
|
||
end;
|
||
NewList(AList);
|
||
FocusItem(Cur);
|
||
end;
|
||
|
||
procedure TDirListBox.SetState(AState: Word; Enable: Boolean);
|
||
begin
|
||
TListBox.SetState(AState, Enable);
|
||
if AState and sfFocused <> 0 then
|
||
PChDirDialog(Owner)^.ChDirButton^.MakeDefault(Enable);
|
||
end;
|
||
|
||
{ TChDirDialog }
|
||
|
||
constructor TChDirDialog.Init(AOptions: Word; HistoryId: Word);
|
||
var
|
||
R: TRect;
|
||
Control: PView;
|
||
CurDir: DirStr;
|
||
begin
|
||
R.Assign(16, 2, 64, 20);
|
||
TDialog.Init(R, 'Change Directory');
|
||
|
||
Options := Options or ofCentered;
|
||
|
||
R.Assign(3, 3, 30, 4);
|
||
DirInput := New(PInputLine, Init(R, 68));
|
||
Insert(DirInput);
|
||
R.Assign(2, 2, 17, 3);
|
||
Control := New(PLabel, Init(R, 'Directory ~n~ame', DirInput));
|
||
Insert(Control);
|
||
R.Assign(30, 3, 33, 4);
|
||
Control := New(PHistory, Init(R, DirInput, HistoryId));
|
||
Insert(Control);
|
||
|
||
R.Assign(32, 6, 33, 16);
|
||
Control := New(PScrollBar, Init(R));
|
||
Insert(Control);
|
||
R.Assign(3, 6, 32, 16);
|
||
DirList := New(PDirListBox, Init(R, PScrollBar(Control)));
|
||
Insert(DirList);
|
||
R.Assign(2, 5, 17, 6);
|
||
Control := New(PLabel, Init(R, 'Directory ~t~ree', DirList));
|
||
Insert(Control);
|
||
|
||
R.Assign(35, 6, 45, 8);
|
||
OkButton := New(PButton, Init(R, 'O~K~', cmOK, bfDefault));
|
||
Insert(OkButton);
|
||
Inc(R.A.Y,3); Inc(R.B.Y,3);
|
||
ChDirButton := New(PButton, Init(R, '~C~hdir', cmChangeDir, bfNormal));
|
||
Insert(ChDirButton);
|
||
Inc(R.A.Y,3); Inc(R.B.Y,3);
|
||
Insert(New(PButton, Init(R, '~R~evert', cmRevert, bfNormal)));
|
||
if AOptions and cdHelpButton <> 0 then
|
||
begin
|
||
Inc(R.A.Y,3); Inc(R.B.Y,3);
|
||
Insert(New(PButton, Init(R, 'Help', cmHelp, bfNormal)));
|
||
end;
|
||
|
||
if AOptions and cdNoLoadDir = 0 then SetUpDialog;
|
||
|
||
SelectNext(False);
|
||
end;
|
||
|
||
constructor TChDirDialog.Load(var S: TStream);
|
||
var
|
||
CurDir: DirStr;
|
||
begin
|
||
TDialog.Load(S);
|
||
GetSubViewPtr(S, DirList);
|
||
GetSubViewPtr(S, DirInput);
|
||
GetSubViewPtr(S, OkButton);
|
||
GetSubViewPtr(S, ChDirbutton);
|
||
SetUpDialog;
|
||
end;
|
||
|
||
function TChDirDialog.DataSize: Word;
|
||
begin
|
||
DataSize := 0;
|
||
end;
|
||
|
||
procedure TChDirDialog.GetData(var Rec);
|
||
begin
|
||
end;
|
||
|
||
procedure TChDirDialog.HandleEvent(var Event: TEvent);
|
||
var
|
||
CurDir: DirStr;
|
||
P: PDirEntry;
|
||
begin
|
||
TDialog.HandleEvent(Event);
|
||
case Event.What of
|
||
evCommand:
|
||
begin
|
||
case Event.Command of
|
||
cmRevert: GetDir(0,CurDir);
|
||
cmChangeDir:
|
||
begin
|
||
P := DirList^.List^.At(DirList^.Focused);
|
||
if (P^.Directory^ = Drives^) or DriveValid(P^.Directory^[1]) then
|
||
CurDir := P^.Directory^
|
||
else Exit;
|
||
end;
|
||
else
|
||
Exit;
|
||
end;
|
||
if (Length(CurDir) > 3) and (CurDir[Length(CurDir)] = '\') then
|
||
CurDir := Copy(CurDir,1,Length(CurDir)-1);
|
||
DirList^.NewDirectory(CurDir);
|
||
DirInput^.Data^ := CurDir;
|
||
DirInput^.DrawView;
|
||
DirList^.Select;
|
||
ClearEvent(Event);
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
procedure TChDirDialog.SetData(var Rec);
|
||
begin
|
||
end;
|
||
|
||
procedure TChDirDialog.SetUpDialog;
|
||
var
|
||
CurDir: DirStr;
|
||
begin
|
||
if DirList <> nil then
|
||
begin
|
||
CurDir := GetCurDir;
|
||
DirList^.NewDirectory(CurDir);
|
||
if (Length(CurDir) > 3) and (CurDir[Length(CurDir)] = '\') then
|
||
CurDir := Copy(CurDir,1,Length(CurDir)-1);
|
||
if DirInput <> nil then
|
||
begin
|
||
DirInput^.Data^ := CurDir;
|
||
DirInput^.DrawView;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
procedure TChDirDialog.Store(var S: TStream);
|
||
begin
|
||
TDialog.Store(S);
|
||
PutSubViewPtr(S, DirList);
|
||
PutSubViewPtr(S, DirInput);
|
||
PutSubViewPtr(S, OkButton);
|
||
PutSubViewPtr(S, ChDirButton);
|
||
end;
|
||
|
||
function TChDirDialog.Valid(Command: Word): Boolean;
|
||
var
|
||
P: PathStr;
|
||
begin
|
||
Valid := True;
|
||
if Command = cmOk then
|
||
begin
|
||
P := FExpand(DirInput^.Data^);
|
||
if (Length(P) > 3) and (P[Length(P)] = '\') then Dec(P[0]);
|
||
{$I-}
|
||
ChDir(P);
|
||
if IOResult <> 0 then
|
||
begin
|
||
MessageBox('Invalid directory.', nil, mfError + mfOkButton);
|
||
Valid := False;
|
||
end;
|
||
{$I+}
|
||
end;
|
||
end;
|
||
|
||
procedure RegisterStdDlg;
|
||
begin
|
||
RegisterType(RFileInputLine);
|
||
RegisterType(RFileCollection);
|
||
RegisterType(RFileList);
|
||
RegisterType(RFileInfoPane);
|
||
RegisterType(RFileDialog);
|
||
RegisterType(RDirCollection);
|
||
RegisterType(RDirListBox);
|
||
RegisterType(RChDirDialog);
|
||
end;
|
||
|
||
end.
|