changes.txt

Revision 328: (2019/01/06 Ryan Potts)
- ovc.inc
  Added defines for VER330 (Delphi 10.3 Rio)
Added support for Delphi 10.3 Rio

Revision 327: (2017/03/25 Armin Biernaczyk)
- ovc.inc
  Added defines for VER320 (Delphi 10.2 Tokyo)
Added support for Delphi 10.2 Tokyo

Revision 326: (2017/02/23 Armin Biernaczyk)
- O408_d.*/ O408_r.*
  Minor changes to "contains"-List

Revision 325: (2016/08/25 Armin Biernaczyk)
- ovc.inc
  Added defines for VER310 (Delphi 10.1 Berlin)
Added support for Delphi 10.1 Berlin

Revision 323: (2015/10/05 Armin Biernaczyk)
- ovc.inc
  Added defines for VER300 (Delphi 10 Seattle)
Added support for Delphi 10 Seattle

Revision 316: (2015/03/15 Armin Biernaczyk)
- ovceditp.pas
  Bugfix: When deleting several lines of text in OvcEditor, the markers were not
  adjusted properly; depending on their position this led to an EInvalidLineOrPara-
  Exception.

Revision 315: (2014/11/04 Armin Biernaczyk)
- ovc.inc
  New Symbol 'VERSIONXE7' for Delphi XE7
Added support for Delphi XE7

Revision 287: (2013/07/14 Armin Biernaczyk)
- ovcedit.pas
  New internal variable 'edeRows' forces the editor to scroll the text when you enter
  the last, not completely visible line

Revision 270: (2013/01/01 Armin Biernaczyk)
- ovcstate.pas
  Bugfix: Calling TOvcFormState.ReadFormState made the window disappear when called
  for a visible form.
- ovctchdr.pas
  Bugfix: The components TOvcTCColHead and TOvcTCRowHead displayed garbage when
  'UseASCIIZStrings' was set to False.

Revision 269: (2012/10/05 Armin Biernaczyk)
Added support for Delphi XE3

Revision 268: (2012/09/30 Armin Biernaczyk)
- ovctgres.pas
  Minor bugfix: The property TOvcTCCheckBox.CellGlyphs.IsDefault could not be set to true.

Revision 267: (2012/03/18 Armin Biernaczyk)
- Tests added to OrpheusTests
- Minor changes regarding the bugfixes in rev 266

Revision 266: (2012/03/17 Armin Biernaczyk)
- ovcef.pas
  Workaround in TOvcBaseEntryField.efRangeToStRange for a bug in system.str in Delphi XE2
- ovcsf.pas
  Minor bugfix in TOvcCustomSimpleField.efTransfer.

Revision 265: (2012/01/04 Armin Biernaczyk)
- ovcvlb.pas
  Bugfix for an issue in the function 'ScrollCanvas' that led to display problems in
  TOvcVirtualListBox and TOvcReportView when using the mousewheel.

Revision 264: (2011/12/18 Armin Biernaczyk)
- ovcedit.pas
  New property 'ShowWrapColumn' to display a vertical line at a certain column in
  TOvcEditor (similar to the Delphi IDE).
- ovctcbox.pas
  Fix for an issue when using TOvcTCCheckBox in a TOvcTable when user defined styles
  are used in Delphi XE2.

Revision 257: (2011/09/22 Armin Biernaczyk)
- ovctable.pas
  Change in TOvcCustomTable.DoGetCellData to detect invalid pointers in GetCellData-
  event at runtime.

Revision 250: (2011/09/07 Armin Biernaczyk)
- ovcstr.pas
  Code for OvcStr.StrChPos changed to resolve issue 3405788.

Revision 242/243: (2011/09/01 Armin Biernaczyk)
- ovc.inc
  New Symbol 'VERSIONXE2' for Delphi XE2 (aka Pulsar)
- ovccklb.pas, ovcclrcb.pas, ovccmbx.pas, ovcnbk.pas, ovctccheckbbx.pas,
  OvcThemes.pas,
  Code modified to use 'StyleServices' instead of 'ThemeServices' in Delphi XE2;
  'ThemeServices' is deprecated in Delphi XE2.
- ovcdlm.pas
  Code for TOvcFastList modified for Delphi XE2 (type 'Classes.TPointerList' has
  changed in XE2)
- ovcnbk.pas
  Modified Theme-support: When themes were active, the properties
  TOvcTabPage.TabColor and TOvcNotebook.Color have been ignored. Now these colors are
  used except when they have the default-values (clBtnface)
- ovctbcls.pas
  Minor changes for Delphi XE2
- ovctcbox.pas
  Added Theme-Support for TOvcTCCheckBox

Revision 241: (2011/08/28 Armin Biernaczyk)
- ovcstr.pas
  Reimplementation of 'UseAsciiZStrings' (rev 237) was incorrect and caused errors
  when using different kinds of strings in TOvcTable.
- ovcrvidx.pas, o32rxngn.pas, o32intlst.pas, o32intdeq.pas, o32igrid.pas
  Minor changes for compatibility with Delphi XE2

Revision 238: (2011/07/23 Armin Biernaczyk)
- ovclb.pas
  Bugfix in TOvcCustomListBox.tlSetTabStops: The tabstops were not set properly,
  resulting in a misalignment of the text.

Revision 237: (2011/07/08 Armin Biernaczyk)
- ovctccustomedt.pas, ovctcedt.pas, ovctchdr.pas, ovctcstr.pas
  Reimplemented 'UseAsciiZStrings' as suggested by Henner Kollmann for backward
  compatibility; see also rev210.

Revision 236: (2011/06/23 Armin Biernaczyk)
- ovcdlm.pas
  Minor changes to prepare for x64-compiler
- ovcspary.pas
  added PUREPASCAL-version for function 'ChunkIsBlank'
- ovcviewr.pas
  1) Minor internal changes to prepare for x64-compiler (where integer<>pointer).
  2) Unicode bugfix in TOvcCustomFileViewer.fvInitObject-Fields.
  3) Bugfix in PUREPASCAL-implementation of TOvcCustomFileViewer.fvGetLineAsText.
  4) added PUREPASCAL-code for asm-Blocks in TOvcCustomFileViewer.fvGotoTextLine.

Revision 235: (2011/06/17 Armin Biernaczyk)
- o32flxed.pas
  Bugfix for TO32CustomFlexEdit: When the mousepointer left the control, the cursor
  was set to the first character if Borders.Active=True.
- o32tcflx.pas, ovctcedt.pas, ovctcpic.pas ovctcsim.pas, ovctcstr.pas
  New properties 'EllipsisMode' and 'IgnoreCR' to improve support for cells
  containing long and/or multi-line strings.
  See new demo in examples\delphi\table\table 16 Multiline
- ovctable.pas
  To give the user the possibility to find out whether a value has been saved or
  not when leaving a cell, 'DoGetCellData' with Purpose=cdpForSave is only called
  when neccessary.

Revision 233/234: (2011/06/04 Armin Biernaczyk)
- o32flxed.pas
  Minor bugfix in TO32CustomFlexEdit.SetText
- o32lkout.pas and ovclkout.pas
  Renamed local variable 'Offset' in TO32CustomLookOutBar.Paint and
  TOvcLookOutBar.Paint for compatibility with Delphi XE2
- o32tcflx.pas
  Changed default value for property 'PassWordChar' to #0 so that TO32TCFlexEdit
  does not work in password-mode by default.
  Bugfix in TO32TCCustomFlexEdit.GetCellEditor: Accessing TO32TCCustomFlexEdit's
  property 'CellEditor' led to an access violation later on.
- ovccmbx.pas
  Bugfix in TOvcBaseComboBox for issue 668019
  (OnClick was fired twice when an item form the dropdown-list was selected).
- ovcddpf.pas and ovcdbsf.pas
  Bugfix in TOvcDbPictureField.pfdbGetFieldValue and
  TOvcDbSimpleField.sfdbGetFieldValue for issue 3305212.
- ovcpf.pas
  Added new property 'FloatScale' (see new demo in
  examples\delphi\table\table 15 floatscale)
  Bugfix for one of the problems listed in issue 668056 (Deleting a character in
  TOvcPictureField was not possible in certain cases)
- ovctcpic.pas
  Added new properties 'FloatScale' and 'UserData'

Revision 232: (2011/05/13 Armin Biernaczyk)
- ovccmbx.pas
  Minor bugfix for TOvcBaseComboBox: Changing the selected item using the mousewheel
  did not work properly.
- ovcdrcbx.pas
  Bugfix for TOvcDirectoryComboBox: The height of the control was not set properly
  if a font was used that led to an ItemHeight of 16 (as in EXCBX.dpr)
- ovcfmcbx.pas
  Bugfix for TOvcAssociationComboBox: This control did not work...

Revision 231: (2011/05/08 Armin Biernaczyk)
- ovctcbef.pas
  TOvcTCBaseEntryField uses 'FDataStringType' to determine what kind of string is
  provided. Due to this change, the property 'DataStringType' can now be used for
  'TOvcPictureField' and 'TOvcSimpleField'.
  (So projects still using ShortStrings, like CustOrd.dpr, can use these cell
  components.)
- ovctcpic.pas and ovctvsim.pas
  The property 'DataStringType' has been made visible.

Revision 220: (2011/05/05 Armin Biernaczyk)
- O32LkOut.pas
  fix for issue 1307362 implemented as suggested by Nathan Sutcliffe.
- ovctcedt.pas
  TOvcTCCustomString now respects the option "efoAutoSelect" if a TOvcController is
  given (as the other cell components do).

Revision 214: (2011/04/28 Sebastian Zierer)
- ovccklb.pas
  Added AutoComplete property to TOvcCheckList, checked state only toggled with space
  key (or mouse)

Revision 213: (2011/04/20 Armin Biernaczyk)
- ovctable.pas
  Minor Bugfix: When otoNoSelection in Options it was necessary to click on a cell
  containing aOvcTCCheckBox three times to change the checkbox' state

Revision 212: (2011/04/18 Armin Biernaczyk)
- ovctccbx.pas
  Bugfix: Comboboxes in Tables did not work because TOvcTCCustomComboBox.tcPaint
  provided a PChar instead of the expected PString for the inherited method.

Revision 210: (2011/04/17 Armin Biernaczyk)
Some bugfixes and changes regarding TOvcTable:
- The properties 'UseASCIIZStrings' and 'UsePString' of 'TOvcTCBaseString' were
  replaced by 'DataStringType':
  Both properties "tried" to define what kind of strings a cell is using, i.e. what
  kind of data the table expects for the cell when calling 'GetCellData'. For
  UseASCIIZStrings=True and UsePString=True (default) a pointer to a string was
  expected. This case worked.
  However, UseASCIIZStrings=False and UsePString=True did not work, as the cell still
  expected a PString when painting the cell - but a pointer to a ShortString when
  editing.
  To resolve this problem the two properties were replaced by 'DataStringType' with
  possible values 'tstString', 'tstShortString' and 'tstPChar'. This property tells
  the table what kind of strings are used to store the data. Of course 'tstString'
  is the default.
  See the example ExTbl10.dpr/ExTbl10_XE.dpr
- ovctcstr.pas
  Replaced properties 'UseASCIIZStrings' and 'UsePString' of 'TOvcTCBaseString' by
  'DataStringType'.
- ovctcmmn.pas
  New type TOvcTblStringtype (for DataStringType)
- ovctchdr.pas
  Bugfixes in TOvcTCColHead.tcPaint and TOvcTCRowHead.tcPaint.
- ovctcedt.pas
  Several changes due to replacing 'UseASCIIZStrings' and 'UsePString'.
- ovctcbef.pas
  Bugfix in TOvcTCBaseEntryField.tcPaint.
- o32tcflx.pas
  Several changes due to replacing 'UseASCIIZStrings' and 'UsePString'.

Revision 208: (2011/04/17 Armin Biernaczyk)
- ovcCoco.pas
  Several Bugfixes to make it work in the unicode-world
- ovcdrpvw.pas
  Changed TOvcDataRvItem.ReadFromStream so that it can
  read from streams containing Ansi-strings in the
  unicode-world.
  (For example when opening ExDrv0.pas/.dfm in Delphi
   XE)
- ovcrvexp.pas
  Some Bugfixes to make it work in the unicode-world.
  Formated the code (which was an auto-generated mess)

Revision 207: (2011/04/16 Armin Biernaczyk)
- ovcstore.pas:
  "Upgraded" TOvcIniFileStore.ReadString and .WriteString to be able
  to handle Unicode-Strings.
  (see examples/delphi/ExState_XE.dproj)

Revision 204/205/206: (2011/04/09 Armin Biernaczyk)
- Ovcxfrc1.pas/dfm
  Minor bugfix for EntryFields with DataType char.
- OvcViewr.pas, OvcSfPe
  Removed redundant internal functions MinI, MaxI, MinL, MaxL
  (These are defined in OvcMisc.pas, too, and OvcMisc was
  already included in the uses-list)
- Ovctcmmn.pas
  Removed redundant internal functions MinI, MaxI, MinL, MaxL
  (included OvcMisc.pas in uses-list instead)
- Ovcsc.pas, Ovcfsc.pas
  Moved internal assembler function(s) GetArrowWidth to OvcMisc.pas
  (and added PUREPASCAL-code)
- OvcMisc.pas
  Added PUREPASCAL code for functions CompStruct, MinI, MaxI,
  MinL, MaxL
- OvcEdit.pas
  modified code for TOvcCustomEditor.edRefreshLines to stop the
  editor repainting the entire ClientRect for every character
  that is being typed.
  Some code simplifictions in TOvcCustomEditor.Paint.
- OvcCalc.pas
  Fix for issue 3267487.

Revision 203: (2011/03/30 Armin Biernaczyk)
- ovcviewr.pas
  Added PUREPASCAL-version for CalcEffCol
  Added PUREPASCAL-version for TOvcCustomFileViewer.fvGetLineAsText

Revision 202: (2011/03/29 Armin Biernaczyk)
- ovcedit.pas
  New method TOvcCustomEditor.Text to access the editor's content as a
  string (instead of using PChar an GetText/SetText).
- ovcef.pas
  "upgraded" TOvcBaseEntryField.GetAsDateTime and .SetAsDateTime so
  that they work for (efDataType mod fcpDivisor) = fsubDouble:
  TOvcPictureFields with DataType=pftDateTime use this efDataType, so
  the extension is necessary to make TOvcPictureField.AsDateTime := ...
  work in case DataType=pftDateTime.
- ovcintl.pas
  Some extensions to use picture-masks containing both characters for
  date AND time. These are necessary for TOvcPictureFields with
  DataType=pftDateTime (e.g. PictureMask='dd/mm/yyyy hh:mm:ss')
  The main problem here is that pmMonth=pmMinute...
  New method TOvcIntlSup.DateTimeToDatePChar to put date and/or time
  in a string based on a picture-string (needed for TOvcCustomPicture-
  Field.efTransfer; see below).
- ovcpf.pas
  Modified TransferString in TOvcCustomPictureField.efTransfer because
  the bugfix in rev 194 caused another problem when assigning a string
  to a picture field containing literals.
  Added a new transfer-procedure TransferDateTime in TOvcCustomPicture-
  Field.efTransfer to handle the case DataType=pftDateTime correctly.
  This did not work before.
  Modified TOvcCustomPictureField.pfGetDataType to return the proper
  type (fidPictureDouble instead of fidPictureDate) in case DataType=
  pftDateTime.
- ovcxfer.pas
  Major changes (see source) to transfer component data from and to
  data-records with different kind of string-types (string, array of char
  and shortstring)
  Upgraded to support TOvcEditor-components
- ovcxfrc1.pas/dfm
  Changes (and bugfixes) to reflect the new options offers by ovcxfer.pas

Revision 201: (2011/03/25 Armin Biernaczyk)
- ovcsf.pas
  Bugfix: TOvcSimpleField did not display the password-character properly in
  passwordmode (in unicode)

Revision 200: (2011/03/25 Armin Biernaczyk)
- ovccal.pas
  Bugfix in TOvcCustomCalendar.SetCalendarDate
- ovcintl.pas
  - removed internal assembler function GetMaxWord
  - re-coded TOvcIntlSup.isMergeIntoPicture to fix some bugs and make it easier to read.
    (methods like 'DateToDateString' did not work properly due to bugs in this method)
  - Bugfix in TOvcIntlSup.MonthStringToMonth
    (due to this bug OvcPictureFields with mask='dd nnn yyyy' and DataType=pftDate did
    not recognise '01 Jan 2000' as a valid date.)

Revision 199: (2011/03/21 Armin Biernaczyk)
- ovcedit.pas
  Fixed issues 668026 and 755214 in TOvcCustomEditor

Revision 197: (2011/03/21 Armin Biernaczyk)
- ovcedit.pas
  Bugfix (issue 947482): When Margins.Left.Enabled=True, the selected text was not
  highlighted properly (text and background were not aligned properly)

Revision 196: (2011/03/21 Armin Biernaczyk)
- ovcedit.pas
  bugfix: <tab>-characters were deleted from the file when saving it (issue 667991).
- ovcviewed.pas/dfm
  minor bugfix: Lists used in TfrmViewEd were not freed (issue 1056218)

Revision 194: (2011/03/19 Armin Biernaczyk)
- ovcpf.pas
  Minor bugfix: When transfering a string to the field (e.g. via AsString), the string
  was not merged with the PictureMask for datatype=pftString if the length of the
  string equaled MaxLength.

Revision 192: (2011/03/16 Armin Biernaczyk)
- OvcCalc.pas:
  Bugfix for issue 1190028 (wrong result in calculator component)

Revision 191: (2011/03/16 Armin Biernaczyk)
- TOvcTCBaseEntryField
  Bugfix: data transfer between TOvcTCBaseEntryField and TOvcBaseEntryField did not work
  in case of strings.

Revision 190: (2011/03/08 Armin Biernaczyk)
- OvcUtils.pas
  Bugfixes for StripCharFromEnd and StripCharFromFront
- TOvcBaseViewer
  Several bugfixes for unicode-version:
  + component displayed only garbage
  + CopyToClipboard did not work
  + PUREPASCAL-code added for several (not yet all) assembler-functions

Revision 187: (2011/03/06 Armin Biernaczyk)
- OvcStr.pas
  a) Added assember-free code for all functions/procedures in this unit (PUREPASCAL)
  b) Serveral bugfixes:
     LoCaseChar         - returned upper case character
     OctalLPChar        - unicode version did not work
     StrChDeletePrim    - both unicode & ansi-version failed for Pos=StrLen(P)
     StrChInsertPrim    - ansi-Version failed for Pos=StrLen(Dest)
     StrInsertChars     - did not work for Count>1024
     TrimEmbeddedZeros  - result was undefined for Pos('E',S)=0
     TrimTrailingZeros  - result was undefined for S=''
     TrimTrailPrimPChar - unicode-version deleted spaces only
                        - ansi-version did work properly for S = '  '

Revision 166: (2010/11/26 Armin Biernaczyk)
- TOvcTextFileEditor
  New property 'Encoding' (unicode-version)
  improved handling of encodings when loading/saving files:
  a) TOvcCustomTextFileEditor.SaveToFile
     If an encoding is passed to this method, it will be used even if not all the
     characters can be coded.
     If no encoding is specified, 'suggestEncoding' will be used to determine a suitable
     encoding: If possible 'Encoding' will be used. However, if not all characters can be
     coded, the method will use UTF8-encoding.
     One can check in advance whether 'Encoding' will not be used by comparing 'Encoding'
     with 'suggestEncoding'.
  b) TOvcCustomTextFileEditor.LoadFromFile
     If no encoding is passed to this method, it tries to derive the file's encoding from
     it's BOM and uses TEncoding.Default as default. Otherwise the given encoding is
     used as default. However, the given encoding will be ignored if the file's BOM indicates
     a different encoding.

     The used encoding is stored in 'Encoding' an will therefore be used when the file
     is saved later (see a).

- TOvcEditor
  Selecting/copying/pasting of rectangular blocks of text did not work properly when the text
  contained <tab>-characters

Revision 164: (2010/11/24 Armin Biernaczyk)
- TOvcTCBaseEntryField
  Fixed a bug in TOvcTCBaseEntryField: Datatransfer did not work and caused exceptions.

Revision 160: (2010/10/26 Armin Biernaczyk)
- TOvcEditor
  fixed wrong handling of TOvcUndoBuffer.BufAvail (unicode) that caused the TOvcEditor to
  crash after some editing.
  Improved performance of TOvcParaList.DeleteBlock (was quite slow when deleting a huge
  amount of paragraphs)
- TOvcCustomTextFileEditor
  Improved handling of different encodings (unicode)

Revision 156/157: (2010/10/23 Armin Biernaczyk)
- TOvcEditor
  Fixed unicode-version of ovcstr.DetabPChar and ovceditu.edGetActualCol
  (TOvcEditor (unicode-version) now displays texts containing tab-characters correctly)

Revision 149: (2010/10/04 Armin Biernaczyk)
- TOvcEditor
  Added support for selecting/copying/pasting rectangular blocks of text (as in the Delphi IDE)
  does not yet work properly in case the text contains <tab>-characters.
  (As in the Delphi-IDE press <AltGr> when selecting text with the mouse)

Revision 147/148: (2010/10/04 Armin Biernaczyk)
- TOvcEditor
  Some bugs fixed in the Editor (unicode-version)

Revision 142: (2010/10/03 Armin Biernaczyk)
- TOvcEditor
  Implemented search functions (unicode-version)

Revision 49: (2009/11/28 Roman Kassebaum)
- TOvcTCCustomString and with it TOvcTCString uses PString. This means the in the OnGetCellText
  event handler should look like the following:
  Data := @FString; (with FString: string, not a ShortString or AnsiString).
  This is the first revision that allows to use the TOvcTCString under unicode.

Revision 48: (2009/11/28 Roman Kassebaum)
- Added the properties Adjust, Color and Font to the editor TOvcTCCustomControl.

Revision 47: (2009/11/25 Roman Kassebaum)
- TOvcTCColHead: Introduced the new property ShowEllipsis.

Revision 46: (2009/11/24 Roman Kassebaum)
- TOvcTCColHead: Fixed a big problem that occurs if the Ellipsis was shown.
  Previous revisions shouldn't be used any longer.

Revision 45: (2009/11/18 Roman Kassebaum)
- Added the new editor TOvcTCCustomInt for Integers. The OnGetCellText event handler should look like the following:
  OvcTCCustomInt1.IntToData(FInteger, Data, Purpose);
  The DoneEdit event handler must be assigned in the following way:
  FInteger := OvcTCCustomInt1.IntegerValue;

Revision 44: (2009/11/18 Roman Kassebaum)
- Added the new editor TOvcTCCustomStr which uses PChar. The OnGetCellText event handler should look like the following:
  OvcTCCustomStr1.StringToData(FString, Data, Purpose);
  Cause the TOvcTCCustomStr uses a PChar, the DoneEdit event handler must be assigned in the following way:
  FString := OvcTCCustomStr1.StringValue;