Files
lazarus-ccr/applications/clipanalizer/main.pas
jesusr cd5e168a20 clipanalizer: implemented delete format.
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@6272 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2018-03-23 22:43:41 +00:00

454 lines
12 KiB
ObjectPascal

{ ClipAnalizer: A tool for analizing the clipboard
Copyright (C) 2018 Jesus Reyes Aguilar <jesusrmx@gmail.com>
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version with the following modification:
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent modules,and
to copy and distribute the resulting executable under terms of your choice,
provided that you also meet, for each linked independent module, the terms
and conditions of the license of that module. An independent module is a
module which is not derived from or based on this library. If you modify
this library, you may extend this exception to your version of the library,
but you are not obligated to do so. If you do not wish to do so, delete this
exception statement from your version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
for more details.
You should have received a copy of the GNU Library General Public License
along with this library; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA.
}
unit main;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, LCLType, LCLIntf, LConvEncoding,
Clipbrd, Forms, Controls, Graphics, Dialogs,
LCLProc, StdCtrls, ExtCtrls, Menus, OwnClip;
type
THexDumpOpts = set of (dopOffsetHex, dopOffsetDec);
{ TfrmClipboardAnalizer }
TfrmClipboardAnalizer = class(TForm)
btnReOpen: TButton;
btnUpdate: TButton;
btnSave: TButton;
btnIsolate: TButton;
btnUpdateIsolate: TButton;
btnOpen: TButton;
btnDeleteFormat: TButton;
chkBinText: TCheckBox;
oDlg: TOpenDialog;
sDlg: TSaveDialog;
txtFormat: TEdit;
lblSize: TLabel;
lblEncoding: TLabel;
lstTypes: TListBox;
memoDump: TMemo;
Panel1: TPanel;
Panel2: TPanel;
radAsText: TRadioButton;
radHex: TRadioButton;
radStream: TRadioButton;
radEncoding: TRadioButton;
Splitter1: TSplitter;
procedure btnDeleteFormatClick(Sender: TObject);
procedure btnOpenClick(Sender: TObject);
procedure btnUpdateIsolateClick(Sender: TObject);
procedure btnSaveClick(Sender: TObject);
procedure btnIsolateClick(Sender: TObject);
procedure btnReOpenClick(Sender: TObject);
procedure btnUpdateClick(Sender: TObject);
procedure chkBinTextClick(Sender: TObject);
procedure lstTypesSelectionChange(Sender: TObject; User: boolean);
private
fFilename: string;
procedure DumpClipboard;
procedure IsolateFormat(updateWithContent: boolean);
procedure UpdateFormatList;
procedure DeleteFormat;
public
end;
var
frmClipboardAnalizer: TfrmClipboardAnalizer;
implementation
{$R *.lfm}
// ref: https://stackoverflow.com/questions/6304896/hex-view-of-a-file
procedure HexDump(data: pointer; size: Integer; Lines: TStrings; opt:THexDumpOpts=[]);
const
SEPHEX=' ';
SEPASC=' ';
NONASC='.';
var
i : Integer;
hexDat, ascDat : string;
buff : PByte;
L: TStringList;
procedure OutputStr(s:string);
begin
if Lines<>nil then begin
L.Add(s);
//s := ConvertEncoding(s, EncodingAnsi, EncodingUTF8);
//Lines.Add(s)
end
else
WriteLn(s);
end;
function OffsetStr(offset: Integer): string;
begin
result := '';
if [dopOffsetHex, dopOffsetDec]*Opt=[] then
exit;
if dopOffsetHex in Opt then
Result:=Result + format('%.8x: ',[Offset]);
if dopOffsetDec in Opt then
Result:=Result + format('%.8d: ',[Offset]);
end;
begin
L := TStringList.Create;
hexDat:=OffsetStr(0);
ascDat:='';
buff := data;
for i:=0 to size-1 do begin
hexDat := hexDat + IntToHex(buff[i], 2);
if ((buff[i]>31) and (buff[i]<128)) then
ascDat := ascDat + Char(buff[i])
else
ascDat := ascDat + NONASC;
if (((i+1) mod 16)<>0) and (((i+1) mod 8)=0) then
hexDat:=hexDat + SEPHEX;
if ((i+1) mod 16)=0 then begin
OutputStr(hexdat+SEPASC+ascdat);
hexdat:=OffsetStr(i+1);
ascdat:='';
end;
end;
if (size mod 16)<>0 then
begin
if (size mod 16)<8 then
hexDat := hexDat+StringOfChar(' ',(8-(size mod 8))*2)
+SEPHEX+StringOfChar(' ',16)
else
hexDat := hexDat+StringOfChar(' ',(16-(size mod 16))*2);
OutputStr(hexDat + SEPASC + ascDat);
end;
if Lines<>nil then
Lines.Assign(L);
L.Free;
end;
// ref: https://www.codeproject.com/Reference/1091137/Windows-Clipboard-Formatss
function FormatIDToStr(formatID: TClipboardFormat):string;
begin
case formatID of
1: result := 'CF_TEXT'; // (1) ANSI text Text.
2: result := 'CF_BITMAP'; // (2) HBITMAP Handle to a bitmap (GDI object).
3: result := 'CF_METAFILEPICT'; // (3) METAFILEPICT Windows-Format Metafiles picture.
4: result := 'CF_SYLK'; // (4) ANSI text Microsoft Symbolic Link [Wikipedia].
5: result := 'CF_DIF'; // (5) ASCII text Software Arts Data Interchange Format [Wikipedia].
6: result := 'CF_TIFF'; // (6) TIFF [Wikipedia] TIFF image.
7: result := 'CF_OEMTEXT'; // (7) 8-Bit DOS text Text.
8: result := 'CF_DIB'; // (8) BITMAPINFO Structure followed by bitmap bits.
9: result := 'CF_PALETTE'; // (9) HPALETTE Handle to a color palette (GDI object).
10: result := 'CF_PENDATA'; // (10) - Windows 3.1 pen extension data.
11: result := 'CF_RIFF'; // (11) RIFF Resource Interchange File Format (RIFF) audio.
12: result := 'CF_WAVE'; // (12) WAVE WAVE audio.
13: result := 'CF_UNICODETEXT'; // (13) Unicode text Text.
14: result := 'CF_ENHMETAFILE'; // (14) HENHMETAFILE Enhanced-Format Metafiles handle.
15: result := 'CF_HDROP'; // (15) DROPFILES List of file names.
16: result := 'CF_LOCALE'; // (16) DWORD (LCID) LCID for CF_TEXT to CF_UNICODE conversion.
17: result := 'CF_DIBV5'; // (17) BITMAPV5HEADER Structure followed by bitmap bits
$0081: result := 'CF_DSPTEXT'; // (0x0081) ANSI text Text.
$0082: result := 'CF_DSPBITMAP'; // (0x0082) HBITMAP Handle to a bitmap (GDI object)
$0083: result := 'CF_DSPMETAFILEPICT'; // (0x0083) METAFILEPICT Windows-Format Metafiles picture.
$0084: result := 'CF_DSPENHMETAFILE'; // (0x008E) HENHMETAFILE Enhanced-Format Metafiles handle.
else begin
result := '';
end;
end;
end;
function FormatIDIsText(formatID:TClipboardFormat): boolean;
begin
case formatID of
1,4,5,7,
49291:
result := true;
else
result := false;
end;
end;
{ TfrmClipboardAnalizer }
procedure TfrmClipboardAnalizer.btnUpdateClick(Sender: TObject);
begin
UpdateFormatList;
end;
procedure TfrmClipboardAnalizer.btnSaveClick(Sender: TObject);
var
aIndex: Integer;
formatID: TClipboardFormat;
stream: TMemoryStream;
begin
aIndex := lstTypes.ItemIndex;
if aIndex<0 then
exit;
if not sDlg.Execute then
exit;
formatID := TClipboardFormat(lstTypes.Items.Objects[aIndex]);
stream := TMemoryStream.Create;
try
ClipboardGetFormat(formatID, stream);
stream.position := 0;
stream.SaveToFile(sDlg.FileName);
finally
stream.free;
end;
end;
procedure TfrmClipboardAnalizer.btnUpdateIsolateClick(Sender: TObject);
begin
IsolateFormat(true);
end;
procedure TfrmClipboardAnalizer.btnOpenClick(Sender: TObject);
begin
if oDlg.Execute then begin
fFilename := oDlg.Filename;
memoDump.Lines.LoadFromFile(oDlg.FileName);
end;
end;
procedure TfrmClipboardAnalizer.btnDeleteFormatClick(Sender: TObject);
begin
DeleteFormat;
end;
procedure TfrmClipboardAnalizer.btnIsolateClick(Sender: TObject);
begin
IsolateFormat(false);
end;
procedure TfrmClipboardAnalizer.btnReOpenClick(Sender: TObject);
begin
if fFilename='' then
btnOpenClick(Self)
else
memoDump.Lines.LoadFromFile(fFilename);
end;
procedure TfrmClipboardAnalizer.chkBinTextClick(Sender: TObject);
begin
if lstTypes.ItemIndex>=0 then
DumpClipboard;
end;
procedure TfrmClipboardAnalizer.lstTypesSelectionChange(Sender: TObject; User: boolean);
begin
DumpClipboard;
end;
procedure TfrmClipboardAnalizer.DumpClipboard;
var
formatID: TClipboardFormat;
stream: TMemoryStream;
isText: Boolean;
s: RawByteString;
encodingStr: string;
aIndex: Integer;
procedure ProcessBin;
var
i: Integer;
begin
if chkBinText.Checked then
for i:=0 to memoDump.Lines.Count-1 do begin
memoDump.Lines[i] := DbgStr(memoDump.Lines[i]);
end;
end;
begin
aIndex := lstTypes.ItemIndex;
if aIndex<0 then begin
memoDump.Clear;
exit;
end;
formatID := TClipboardFormat(lstTypes.Items.Objects[aIndex]);
isText := FormatIDIsText(formatID);
stream := TMemoryStream.Create;
try
memoDump.Lines.BeginUpdate;
ClipboardGetFormat(formatID, stream);
stream.position := 0;
SetString(s, stream.Memory, stream.Size);
encodingStr := GuessEncoding(s);
if formatID=13{CF_UNICODETEXT} then
encodingStr := EncodingUCS2LE;
txtFormat.Text := lstTypes.Items[aIndex];
lblEncoding.Caption := encodingStr;
lblSize.Caption := format('%d bytes',[stream.size]);
if radHex.Checked then begin
HexDump(stream.Memory, stream.Size, memoDump.Lines, [dopOffsetHex]);
exit;
end;
if radAsText.checked then
memoDump.Text := Clipboard.AsText
else
if radStream.Checked then
memoDump.Lines.LoadFromStream(stream{, True})
else begin
if encodingStr=EncodingUTF8 then
memoDump.Text := s
else
memoDump.Text := ConvertEncoding(s, encodingStr, EncodingUTF8);
end;
ProcessBin;
finally
stream.Free;
memoDump.Lines.EndUpdate;
end;
end;
procedure TfrmClipboardAnalizer.IsolateFormat(updateWithContent: boolean);
var
stream: TMemoryStream;
formatID: TClipboardFormat;
aIndex: Integer;
begin
aIndex := lstTypes.ItemIndex;
if aIndex<0 then
exit;
formatID := TClipboardFormat(lstTypes.Items.Objects[aIndex]);
stream := TMemoryStream.Create;
try
if updateWithContent then
memoDump.Lines.SaveToStream(stream)
else
ClipboardGetFormat(formatID, stream);
stream.position := 0;
Clipboard.Open;
Clipboard.Clear;
Clipboard.AddFormat(formatID, stream);
Clipboard.Close;
UpdateFormatList;
finally
stream.free;
end;
end;
procedure TfrmClipboardAnalizer.UpdateFormatList;
var
L: TStringList;
formatID: TClipboardFormat;
i: Integer;
begin
L := TStringList.Create;
for i := 0 to Clipboard.FormatCount - 1 do begin
formatID := Clipboard.Formats[i];
if formatID = 0 then
continue;
L.AddObject(
format('%d:%s:%s', [
FormatID,
FormatIDToStr(FormatID),
ClipboardFormatToMimeType(FormatID)]),
TObject(PtrUInt(formatID)));
end;
lstTypes.Items.Assign(L);
L.Free;
end;
type
TFormatItem = record
formatID: TClipboardFormat;
stream: TMemoryStream;
end;
procedure TfrmClipboardAnalizer.DeleteFormat;
var
item: TFormatItem;
Lista: array of TFormatItem;
aIndex, n: Integer;
begin
for aIndex:=0 to lstTypes.Count-1 do begin
if lstTypes.ItemIndex=aIndex then
continue;
item.formatID := TClipboardFormat(lstTypes.Items.Objects[aIndex]);
item.stream := TMemoryStream.Create;
ClipboardGetFormat(item.formatID, item.stream);
item.stream.Position := 0;
n := Length(Lista);
SetLength(lista, n+1);
lista[n] := item;
end;
if length(lista)=0 then
exit;
try
Clipboard.Open;
Clipboard.Clear;
for aIndex := 0 to Length(Lista)-1 do begin
Clipboard.AddFormat(lista[aIndex].formatID, lista[aIndex].stream);
lista[aIndex].stream.free;
end;
finally
Clipboard.Close;
UpdateFormatList;
end;
end;
end.