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[wxWidgets.git] / docs / changes.txt

-------------------------------------------------------------------------------
                             wxWidgets Change Log
-------------------------------------------------------------------------------

INCOMPATIBLE CHANGES SINCE 2.8.x
================================

Changes in behaviour not resulting in compilation errors, please read this!
---------------------------------------------------------------------------

- Default location of wxFileConfig files has changed under Windows, you will
  need to update your code if you access these files directly.

- wxWindow::IsEnabled() now returns false if a window parent (and not
  necessarily the window itself) is disabled, new function IsThisEnabled()
  with the same behaviour as old IsEnabled() was added.

- Generating wxNavigationKeyEvent events doesn't work any more under wxGTK (and
  other platforms in the future), use wxWindow::Navigate() or NavigateIn()
  instead.

- Sizers distribute only the extra space between the stretchable items
  according to their proportions and not all available space. We believe the
  new behaviour corresponds better to user expectations but if you did rely
  on the old behaviour you will have to update your code to set the minimal
  sizes of the sizer items to be in the same proportion as the items
  proportions to return to the old behaviour.

Changes in behaviour which may result in compilation errors
-----------------------------------------------------------

- WXWIN_COMPATIBILITY_2_4 doesn't exist any more, please update your code if
  you still relied on features deprecated since version 2.4

- Return type of wxString::operator[] and wxString::iterator::operator* is no
  longer wxChar (i.e. char or wchar_t), but wxUniChar. This is not a problem
  in vast majority of cases because of conversion operators, but it can break
  code that depends on the result being wxChar.

- The value returned by wxString::c_str() cannot be casted to non-const char*
  or wchar_t* anymore. The solution is to use newly added wxString methods
  char_str() (which returns a buffer convertible to char*) or wchar_str()
  (which returns a buffer convertible to wchar_t*). These methods are
  available in wxWidgets 2.8 series beginning with 2.8.4 as well.

- The value returned by wxString::operator[] or wxString::iterator cannot be
  used in switch statements anymore, because it's a class instance. Code like
  this won't compile:
     switch (str[i]) { ... }
  and has to be replaced with this:
     switch (str[i].GetValue()) { ... }

- Return type of wxString::c_str() is now wxCStrData struct and not
  const wxChar*. wxCStrData is implicitly convertible to const char* and
  const wchar_t*, so this only presents a problem if the compiler cannot
  convert the type. In particular, Borland C++ and DigitalMars compilers
  don't correctly convert operator?: operands to the same type and fail with
  compilation error instead. This can be worked around by explicitly casting
  to const wxChar*:
     wxLogError(_("error: %s"), !err.empty() ? (const wxChar*)err.c_str() : "")

- DigitalMars compiler has a bug that prevents it from using
  wxUniChar::operator bool in conditions and it erroneously reports type
  conversion ambiguity in expressions such as this:
     for ( wxString::const_iterator p = s.begin(); *p; ++p )
  This can be worked around by explicitly casting to bool:
     for ( wxString::const_iterator p = s.begin(); (bool)*p; ++p )

Deprecated methods and their replacements
-----------------------------------------

- wxCreateGreyedImage() deprecated, use wxImage::ConvertToGreyscale() instead.
- wxString::GetWriteBuf() and UngetWriteBuf() deprecated, using wxStringBuffer
  or wxStringBufferLength instead.

Major new features in this release
----------------------------------


2.9.0
-----

All:

- Added wxJoin() and wxSplit() functions (Francesco Montorsi)
- Added wxMutex::LockTimeout() (Aleksandr Napylov)
- Added wxMemoryInputStream(wxInputStream&) ctor (Stas Sergeev)
- Implemented wxMemoryInputStream::CanRead()
- Added wxEXEC_BLOCK flag (Hank Schultz)
- Add support for wxStream-derived classes to wxRTTI (Stas Sergeev)
- Added wxStreamBuffer::Truncate() (Stas Sergeev)

All (GUI):

- Added wxH[V]ScrolledWindow (Brad Anderson, Bryan Petty)
- Added wxDC::StretchBlit() for wxMac and wxMSW (Vince Harron)
- Added support for labels for toolbar controls (Vince Harron)
- Added wxEventBlocker class (Francesco Montorsi).
- Added wxFile/DirPickerCtrl::Get/SetFile/DirName() (Francesco Montorsi).
- Added wxSizerFlags::Top() and Bottom().
- Slovak translation added.
- Fixed tab-related drawing and hit-testing bugs in wxRichTextCtrl.
- Implemented background colour in wxRichTextCtrl.
- Fixed crashes in helpview when opening a file.
- Set locale to the default in all ports, not just wxGTK
- Added wxJoystick::GetButtonState/Position() (Frank C Szczerba)
- Added wxGridUpdateLocker helper class (Evgeniy Tarassov)
- Support wxGRID_AUTOSIZE in wxGrid::SetRow/ColLabelSize() (Evgeniy Tarassov)
- Added wxWindow::NavigateIn() in addition to existing Navigate()
- Add support for <data> tags to wxrc
- Support wxAPPLY and wxCLOSE in CreateStdDialogButtonSizer() (Marcin Wojdyr)
- Show standard options in wxCmdLineParser usage message (Francesco Montorsi)

wxGTK:

- Support for markup and ellipsization in wxStaticText (Francesco Montorsi)
- Native implementation for wxHyperlinkCtrl (Francesco Montorsi)
- Native keyboard navigation implementation
- Don't overwrite primary selection with clipboard and vice versa
- Implemented support for underlined fonts in wxStaticText.
- wxTopLevelWindow::SetSizeHints size increments now work.
- wxTopLevelWindow::GetSize() returns the size including the WM decorations.
- wxTopLevelWindow::GetClientSize() returns 0x0 when the window is minimized.
- Added support for colour cursors (Pascal Monasse).
- Setting foreground colour of single line wxTextCtrl now works
- Pass current control text to EVT_TEXT handler for wxSpinCtrl (John Ratliff)
- Added gtk.tlw.can-set-transparency system option

wxMac:

- Better IconRef support (Alan Shouls)
- Fix duplicate (empty) help menu in non-English programs (Andreas Jacobs)
- Allow accelerators to be used with buttons too (Ryan Wilcox)
- Support resource forks in wxCopyFile() (Hank Schultz)

wxMSW:

- Fixed infinite loop in wxThread::Wait() in console applications.
- Return the restored window size from GetSize() when window is minimized.
- wxCheckListBox now looks more natively, especially under XP (Marcin Malich)

wxX11:

- Added mouse wheel support (David Hart)
- Make Enter key activate the default button (David Hart)


2.8.4
-----

All:

- Fix bug in wxFileConfig when recreating a group (Steven Van Ingelgem)

All (Unix):

- Handle socket shutdown by the peer correctly in wxSocket (Tim Kosse)

All (GUI):

- Allow status bar children in XRC (Edmunt Pienkowski)

wxMSW:

- Corrected wxStaticBox label appearance when its foreground colour was set:
  it didn't respect font size nor background colour then (Juan Antonio Ortega)
- Don't lose combobox text when it's opened and closed (Kolya Kosenko)
- Corrected GetChecked() for events from checkable menu items (smanders)
- Fixed popup menus under Windows NT 4
- Fixed bug in wxThread::Wait() in console applications introduced in 2.8.3
- Support right-aligned/centered owner drawn items in wxListCtrl (troelsk)
- Compilation fixed with WXWIN_COMPATIBILITY_2_6==0

wxGTK:

- Fix infinite loop when adding a wxStaticText control to a toolbar
- Fix wxNO_BORDER style for wxRadioBox (David Hart)
- Fix wxTextCtrl::GetLineText() for empty lines (Marcin Wojdyr)

wxMac:

- Fix wxComboBox::SetSelection(wxNOT_FOUND) (Adrian Secord)

wxUniv:

- Fix wxTextCtrl::SetSelection(-1, -1) to behave as documented (Anders Larsen)
- Fix wxComboBox::SetSelection(wxNOT_FOUND)
- Fix setting background colour for controls with transparent background


2.8.3
-----

All:

- Shut down the sockets gracefully (Sergio Aguayo)
- Fix extra indentation in wxHTML_ALIGN_JUSTIFY display (Chacal)

wxMac:

- Corrected top border size for wxStaticBox with empty label (nusi)

wxMSW:

- Fixed wxFileName::GetSize() for large files

wxGTK:

- Fixed handling of accelerators using PageUp/Down keys


2.8.2
-----

All:

- Added wxSizerFlags::Shaped() and FixedMinSize() methods.
- Added wxCSConv::IsOk() (Manuel Martin).
- Added wxDateTime::GetDateOnly().
- Made wxTextFile work with unseekable files again (David Hart).
- Added wxCONFIG_USE_SUBDIR flag to wxFileConfig (Giuseppe Bilotta).
- Added wxSearchCtrl::[Get|Set]DescriptiveText.
- Fixed detection of number of processors under Linux 2.6
- Fixed Base64 computation in wxHTTP (p_michalczyk)
- Fix handling of wxSOCKET_REUSEADDR in wxDatagramSocket (troelsk)

Unix Ports:

- Fixed crash in wxGetUserName() in Unicode build

wxMSW

- Fix lack of spin control update event when control lost focus.
- Corrected drawing of bitmaps for disabled menu items.

wxGTK

- Fix hang on startup when using GTK+ options in Unicode build

wxMac

- Fix position of the centered windows (didn't take menu bar size into account)
- Added support for the wxFRAME_FLOAT_ON_PARENT style.

wxX11:

- Don't crash in wxWindow dtor if the window hadn't been really Create()d.

wxUniv:

- Fixed wxComboBox always sorted.


2.8.1
-----

All:

- Fix compilation with wxUSE_STL=1.
- wxGrid::GetBestSize() returns same size the grid would have after AutoSize().
- Added wxTreeCtrl::CollapseAll[Children]() and IsEmpty() (Francesco Montorsi).
- Several RTL-related positioning fixes (Diaa Sami).
- Fix wxConfig::DeleteGroup() for arguments with trailing slash (David Hart).
- Fix memory leak in wxGrid::ShowCellEditControl() (Christian Sturmlechner).

wxMSW:

- Fixed compilation with Borland C++ in Unicode mode but without MSLU.
- Show taskbar icon menu on right button release, not press.

wxGTK:

- Don't crash if command line is not valid UTF-8 (Unicode build only).

wxUniv:

- It is now possible to set background colour of wxStaticText.


2.8.0
-----

All:

- Added wxSearchCtrl (Vince Harron).
- wxCSConv("UTF-16/32") now behaves correctly, i.e. same as wxMBConvUTF16/32.
- wxArrayString::Alloc() now works as reserve() and doesn't clear array contents.
- Fixed long standing bug in wxFileConfig groups renaming (Antti Koivisto).
- New option wxFS_READ | wxFS_SEEKABLE for wxFileSystem::OpenFile() to return
  a stream that is seekable.
- Fixed bug in wxCalendarCtrl::HitTest() when clicking on month change arrows.
- Added wxWindow::GetWindowBorderSize() and corrected wxTreeCtrl::GetBestSize().
  for a control with borders (Tim Kosse).

wxMSW:

- Fixed version script problems when using configure with cygwin/mingw32.
- Use system default paper size for printing instead of A4.
- Fix (harmless) assert in virtual list control under Vista.
- Fix colours when converting wxBitmap with alpha to wxImage (nusi).

wxGTK:

- Allow dynamically changing most of text control styles.
- Enable use of libgnomeprintui by default in configure.


2.7.2
-----

All:

- Added wxFFile overload to wxFileName::CreateTemporaryFileName().
- Added GetTempDir() to wxFileName and wxStandardPaths.
- Added wxTar streams.
- Added wxFilterFSHandler and wxArchiveFSHandler.
- Added wxString::ToLongLong() and ToULongLong().

All (GUI):

- wxMemoryDC constructor now optionally accepts a wxBitmap parameter,
  calling SelectObject itself if a valid bitmap is passed.
- Reverted wxBuffered[Paint]DC to pre 2.7.1 state, added
  wxAutoBufferedPaintDC and wxAutoBufferedPaintDCFactory.
- Renamed wxProgressDialog::UpdatePulse() to just Pulse().
- Added wxCollapsiblePane (Francesco Montorsi).
- Added wxSimpleHtmlListBox (Francesco Montorsi).
- Printing framework fixes by Robert J. Lang. Bugs fixed,
  wxPrinterDC::GetPaperRect() and other functions added to allow
  easier printing implementation, and the documentation updated.
- Many enhancements to wxRichTextCtrl including URL support,
  formatting and symbol dialogs, print/preview, and better list
  formatting.
- Support for loading TGA files added (Seth Jackson).
- Added wxTB_RIGHT style for right-aligned toolbars (Igor Korot).
- wxHtmlWindow now generates events on link clicks (Francesco Montorsi).
- wxHtmlWindow now also generates wxEVT_COMMAND_TEXT_COPY event.

Unix Ports:

- Added autopackage for wxGTK and an example of using autopackage for a wx
  program (Francesco Montorsi).

wxGTK:

- More RTL work.
- Support wxALWAYS_SHOW_SB.
- Speed up MIME types loading. Only the GNOME database should be loaded under
  GNOME etc. For this, the code queries the X11 session protocol.
- wxCaret redraw problem during scrolling fixed.


2.7.1
-----

All:

- Added wxDir::FindFirst() (Francesco Montorsi).
- Added wxPlatformInfo class (Francesco Montorsi).
- Added wxLocale::IsAvailable() (Creighton).
- Added Malay translations (Mahrazi Mohd Kamal).
- Added reference counting for wxVariant.
- For consistency, all classes having Ok() method now also have IsOk() one, use
  of the latter form is preferred although the former hasn't been deprecated yet.
- Added wxFileName::Is(Dir|File)(Writ|Read|Execut)able() (Francesco Montorsi).
- Added wxFileName::GetSize() and GetHumanReadableSize() (Francesco Montorsi).
- Added wxSizer::Replace (Francesco Montorsi).
- wxXmlDocument can now optionally preserve whitespace (Francesco Montorsi).
- Added wxBookCtrl::ChangeSelection() and wxTextCtrl::ChangeValue() to provide
  event-free alternatives to SetSelection() and SetValue() functions; see the
  "Events generated by the user vs programmatically generated events" paragraph
  in the "Event handling overview" topic for more info.

All (GUI):

- Support for right-to-left text layout (started by Diaa Sami during Google Summer of
  Code, with a lot of help from Tim Kosse and others).
- wxAnimationCtrl added (Francesco Montorsi).
- Added wxAboutBox() function for displaying the standard about dialog.
- Added wxID_PAGE_SETUP standard id.
- Added wxSize::IncBy() and DecBy() methods.
- Added wxTextCtrl::IsEmpty().
- Added file type parameter to wxTextCtrl::LoadFile, wxTextCtrl::SaveFile for
  consistency with wxRichTextCtrl.
- wxRichTextCtrl: fixed range out-by-one bug to be consistent with wxTextCtrl API,
  fixed some attribute bugs and added wxRichTextStyleComboCtrl.
- Added wxWindow::IsDoubleBuffered().
- Added wxHL_ALIGN_* flags to wxHyperlinkCtrl (Francesco Montorsi).
- Added wxGauge::Pulse() and wxProgressDialog::UpdatePulse() (Francesco Montorsi).

wxMSW:

- Implemented wxComboBox::SetEditable().
- wxSemaphore::Post() returns wxSEMA_OVERFLOW as documented (Christian Walther)
- Fixed a bug whereby static controls didn't use the correct text colour if the
  parent's background colour had been set (most noticeable when switching to a
  high-contrast theme).
- Respect wxBU_EXACTFIT style in wxToggleButton (Alexander Borovsky).

wxMac:

- Add parameter to the --enable-universal_binary configure option for the path
  to the SDK.

wxGTK:

- Automatically use stock items for menu items with standard ids.
- Setting cursor now works for all controls.
- Implemented right-to-left support.
- Implemented left indentation and tab stops support in wxTextCtrl (Tim Kosse).
- Fixed wxHTML rendering of underlined text of multiple words (Mart Raudsepp).

wxUniv:

- Added wxTLW::UseNativeDecorations() and UseNativeDecorationsByDefault().


2.7.0
-----

All:

- Added positional parameters support to wxVsnprintf() (Francesco Montorsi).
- wx(F)File, wxTextFile and wxInputStreams recognize Unicode BOM now.
- Many fixes for UTF-16/32 handling in Unicode builds.
- wxLaunchDefaultBrowser() now supports wxBROWSER_NEW_WINDOW flag.
- Added wxStandardPaths::GetResourcesDir() and GetLocalizedResourcesDir()
- Added wxStandardPaths::GetDocumentsDir() (Ken Thomases).
- Added wxStringTokenizer::GetLastDelimiter(); improved documentation.
- Fixed wxTextFile in Unicode build.
- Added possibility to specify dependencies for a wxModule.
- Speed improvements to wxRegEx when matching is done in a loop such as
  during a search and replace.
- Fix regerror and regfree name conficts when built-in regex and system regex
  are both used in the same program.
- Basic authentication supported added to wxHTTP.
- wxCondition::WaitTimeout() now returns correct value when timeout occurs.
- Fixed occasional wxThread cleanup crash.
- Bug in wxLogStream::DoLogString in Unicode builds fixed.
- Added support for memo fields to wxODBC.
- Fixed Unicode builds using SunPro compiler by defining__WCHAR_TYPE__.
- wxFileName now also looks for TMPDIR on Unix.
- Fixed build error in list.h with VC++ 2005.
- Fixed wxODBC buffer overflow problem in Unicode builds.
- Fixed wxSocketBase::InterruptWait on wxBase.
- Important code cleanup (Paul Cornett).
- Added support for wxLongLong in wx stream classes (Mark Junker).
- wxSOCKET_REUSEADDR can be used with wxSocketClient.
- Overloaded Connect() and SetLocal() methods for binding to local address/port.
- Albanian translation added (Besnik Bleta).
- Assert messages now show the function in which assert failed.
- wxApp::OnAssertFailure() should now be used instead the old wxApp::OnAssert().
- Fixed several bugs in wxDateTime::ParseDate().
- The WXK*PRIOR and WXK*NEXT constants are now aliases for WXK*PAGEUP
  and WXK*PAGEDOWN.  If you have switch statements that use both
  constants from a set then you need to remove the PRIOR/NEXT
  versions in order to eliminate compiler errors.
- Fixed bug where wxDateTime::Now() would sometimes return an incorrect value
  the first time it was called.
- Added wxString::rbegin() and rend().
- Added wxString::EndsWith().
- wxSocket::_Read continues reading from socket after exhausting pushback buffer.
  Previously, only the buffer would be returned, even if more data was requested.
- Added wxPowerEvent (currently MSW-only).
- Make wx-config compatible with Bourne shells.
- Fixed wxDb::Open(wxDbConnectInf) when using connection string (Hellwolf Misty).
- Fixed crash in wxDb::Open() in Unicode build (Massimiliano Marretta).
- Fixed wxTimeSpan::Format() for negative time spans.
- Optionally count repeating wxLog messages instead of logging all (Lauri Nurmi).

All (GUI):

- New AUI (Advanced User Interface) library for docking windows and much more.
- Added wxComboCtrl and wxOwnerDrawnComboBox (Jaakko Salli).
- Added wxTreebook (uses a wxTreeCtrl to control pages).
- Added wxColour/Dir/File/Font/PickerCtrls (Francesco Montorsi).
- Added wxDC::GradientFillLinear/Concentric().
- Added wxHyperlinkCtrl (Francesco Montorsi).
- Added clipboard events (wxEVT_COMMAND_TEXT_COPY/CUT/PASTE).
- Allow to reorder wxGrid columns by drag-and-drop (Santiago Palacios).
- Added wxRadioBox::SetItemToolTip().
- Added support for CMYK JPEG images loading (Robert Wruck).
- Added wxListCtrl::GetSubItemRect() and subitem hit testing (Agron Selimaj).
- Added wxKeyEvent::GetModifiers().
- Added wxDialog::SetEscapeId().
- wxItemContainerImmutable::FindString unified (affects wxRadioBox, wxListBox,
  wxComboBox and wxChoice).
- wxWindow::Fit() now works correctly for frames and dialogs too.
- Added access to the border size between pages and controller in book
  based controls (wxBookCtrlBase::Get/SetInternalBorder).
- Added initial wxRichTextCtrl implementation.
- All book based controls (notebook, treebook etc.) share now the same
  options for orientation (wxBK_TOP, wxBK_DEFAULT, ...) instead of duplicated
  wxLB_TOP, wxNB_TOP, wxCHB_TOP, wxTBK_TOP.
- Added parent window parameter to wxHelpController constructor
  and added SetParentWindow/GetParentWindow.
- wxMultiChoiceDialog uses now wxCheckListBox if possible, wxListBox if not.
- Added wxBitmapButton::SetHoverBitmap().
- Access to titles through Get/SetTitle is available now only for top level
  windows (wxDialog, wxFrame).
- Fixed memory leak of pending events in wxEvtHandler.
- Added wxRadioBox::IsItemEnabled/Shown().
- Added space after list item number in wxHTML.
- Implemented <sub> and <sup> handling in wxHTML (based on patch
  by Sandro Sigala).
- Added caption parameter to wxGetFontFromUser and wxGetColourFromUser.
- Added wxGetMouseState function.
- Added wxHtmlHelpWindow, wxHtmlHelpDialog and wxHtmlModalHelp classes,
  allowing HTML help to be embedded in an application.
- wxCalendarCtrl positioning and hit-testing fixes for dimensions other than
  best size.
- wxCalendarCtrl colour schema changed and adjusted to system settings.
- wxImage::Mirror() and GetSubBitmap() now support alpha (Mickey Rose).
- More checking of image validity before loading into wxImage.
- Added wxImage::ConvertToGreyscale.
- Added ability to use templates with static event tables
  with BEGIN_EVENT_TABLE_TEMPLATEn() macros.
- Added play, pause, and state change events to wxMediaCtrl.
- Added double-buffering to wxVListBox and fixed a scrolling issue.
- Added wxToolbook (uses a wxToolBar to control pages).
- Added SetSheetStyle to wxPropertySheetDialog and allowed it to
  behave like a Mac OS X settings dialog.
- Added <disabled> XRC tag for wxToolBar elements and <bg> for wxToolBar itself.
- Fixed centering of top level windows on secondary displays.
- Implemented wxDisplay::GetFromWindow() for platforms other than MSW.
- UpdateUI handler can now show/hide the window too (Ronald Weiss).
- More than one filter allowed in in wxDocTemplate filter.
- Added wxListBox::HitTest().
- Added wxDisplay::GetClientArea().
- Indices and counts in wxControlWithItems derived API are unsigned.
- Added support for links to wxHtmlListBox; use code has to override
  wxHtmlListBox::OnLinkClicked() to take advantage of it.
- Added an easier to use wxMenu::AppendSubMenu().
- wxString <-> wxColour conversions in wxColour class (Francesco Montorsi).
- Fixed bug with ignoring blank lines in multiline wxGrid cell labels.
- Added wxTextAttr::Merge() (Marcin Simonides).
- Added wxTB_NO_TOOLTIPS style (Igor Korot).
- Added wxGenericDirCtrl::CollapsePath() (Christian Buhtz).
- Added wxTreeCtrl::ExpandAllChildren() (Christian Buhtz)
- Fixed 64-bit issue in wxNotebook causing segfaults on Tru64 Unix.
- Made it possible to associate context help to a region of a window.
- Added support for tabs in wxRichTextCtrl (Ashish More).
- Fixed problem with zoom setting in print preview.
- Moved wxRichTextCtrl from the advanced library to its own.
- wxNB_HITTEST_* flags renamed to wxBK_HITTEST_* to serve all book controls.
- Added wxTopLevelWindow::SetTransparent and CanSetTransparent, with
  implementations (so far) for wxMSW and wxMac.