Make an image block beore writing it, if there's no data in the block

[wxWidgets.git] / docs / changes.txt

---------------------------------------------------------------
wxWidgets Change Log - For more verbose changes, see the manual
---------------------------------------------------------------

INCOMPATIBLE CHANGES SINCE 2.6.x
================================

- wxFontData::GetColour() now returns a const colour
- wxDC objects can't be created directly now (this never worked, now it doesn't
  even compile)
- For all wxInputStreams, Eof() becomes true after an attempt has been made
  to read _past_ the end of file.
- wxCHECK family of macros now must be followed by a semicolon
- wxMBConv::cMB2WC() and cWC2MB() take size of the input buffer and return
  length of the converted string in all cases now.
- wxHtmlWindow::OnCellClicked() now returns bool.
- wxHtmlCell::OnMouseClick() was deprecated and replaced with
  wxHtmlCell::ProcessMouseClick(); old code overriding OnMouseClick() will
  continue to work with WXWIN_COMPATIBILITY_2_6, but should be rewritten to
  use ProcessMouseClick().
- wxHtmlCell::GetCursor() was deprecated and replaced with
  wxHtmlCell::GetMouseCursor(); old code overriding GetCursor() will
  continue to work with WXWIN_COMPATIBILITY_2_6, but should be rewritten to
  use GetMouseCursor().


Deprecated methods since 2.6.x and their replacements
-----------------------------------------------------

- wxGetWorkingDirectory() deprecated in favour of wxGetCwd()
- wxDC::BeginDrawing() and wxDC::EndDrawing() deprecated, just don't use them


2.7.0
-----

All:

- 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 wxStringTokenizer::GetLastDelimiter(); improved documentation.
- Fixed wxTextFile in Unicode build
- 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()


All (GUI):

- Added wxTreebook (uses a wxTreeCtrl to control pages).
- Added wxDC::GradientFillLinear/Concentric()
- 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.
- 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.

wxMSW:

- Fixed crash with ownerdrawn menu items accelerators (Perry Miller).
- wxFileDialog respects absence of wxCHANGE_DIR flag under NT (Brad Anderson).
- Switching page of a hidden notebook doesn't lose focus (Jamie Gadd).
- Removed wxImageList *GetImageList(int) const.
- Fixed MDI context menu problem.
- Removed __WIN95__ define
- Create msw/rcdefs.h in setup.h's directory, which can be included by
  resource files. It containts platform/compiler specific defines (such as
  target cpu) which can be used in #ifs in .rc files.
- Add support for Win64 manifests and VC++ 8 automatic manifests (see the
  wxMSW faq for details).
- New TARGET_CPU=amd64 (or 'ia64') option for the makefile.vc files which
  puts 64-bit builds in their own directory and adds /machine:amd64 or ia64
  to the link command.
- wxStatusBar::GetFieldRect now returns correct values under XP.
- wxStatusBar no longer corrupts surrounding windows on resize.
- Enable wxListCtrl in report mode to be able to use images in other
  columns, if ComCtl32 >= 470.
- Fixed problem where using SetValue and wxTE_RICH2 would cause control to
  show.
- Numpad special keys are now distinguished from normal keys.
- Fixed GDI leak in wxStaticBitmap when setting images after
  initial construction.
- Menu codes now stripped before measuring control labels.
- MFC sample now compiles in Unicode mode.
- Fixed SetScrollbar thumb size setting bug (set orientation before triggering
  events).
- Fixed icon to cursor conversion problem for bitmaps with masks.
- Fixed wxToolBar background colour problem for some video cards.
- wxGenericDirCtrl now shows volume name.
- Added XP theme support for DrawHeaderButton, DrawTreeItemButton.
- Made the wxActiveXContainer class public and documentated.
- Added a Windows Media Player 9/10 backend for wxMediaCtrl.
- Multiline notebook tab label change now resizes the control
  correctly if an extra row is removed or added.
- Fixed a crash when dismissing wxPrintDialog under VC++ 7.1.
- Fixed out by one error in wxTextCtrl::GetStyle.
- Fixed problem with getting input in universal/unicode build of wxMSW.
- Link oleacc.lib conditionally.
- Drag and drop now works inside static boxes.
- Fall back to unthemed wxNotebook if specified orientation not available.
- wxListCtrl and wxTreeCtrl now resize their standard font if the user
  changes the system font.
- wxDisplay doesn't require multimon.h now and is enabled by default (Olly Betts).
- Fixed wxChoice/wxComboBox slow appending and infinite recursion
  if its size is set within a paint handler (for example when embedded in a
  wxHtmlWindow). [Now reverted due to problems in W2K and below.]
- wxDC::GetTextExtent() width calculation is more precise for italics fonts now

wxGTK:

- Fixed handling of font encoding in non-Unicode build
- wxEVT_MENU_CLOSE and wxEVT_MENU_OPENED for popup menus are now generated.
- Implemented wxCURSOR_BLANK support.
- wxSlider generates all scroll events now and not only wxEVT_SCROLL_THUMBTRACK.
- Fixed a host of bugs in wxMediaCtrl as well as added a GStreamer 0.10
  implementation.
- Improved configure checks for GStreamer. You may also now specify
  --enable-gstreamer8 to force configure to check for GStreamer 0.8.
- Fixed problem with choice editor in wxGrid whereby the editor
  lost focus when the combobox menu was shown.
- Fixed focusing with mnemonic accelerator keys on wxStaticText which
  is now able to focus on wxComboBox and possibly other controls
  previously unable to be focused before.
- Enabled mnemonics and the corresponding accelerator keys for
  wxStaticBox and wxRadioBox.
- Fixed problem trying to print from a preview, whereby wrong printer
  class was used.
- Worked around pango crashes in strncmp on Solaris 10.
- Polygon and line drawing speeded up if there is no scaling.
- Fixed problems with CJK input method.
- Implemented ScrollLines/Pages() for all windows (Paul Cornett).
- Support underlined fonts in wxTextCtrl.

wxMac:

- Fixed problem with clipboard support for custom data flavors.
- Fixed focus handling for generic controls in carbon-cfm.
- Fixed a printing crash bug, for example using File->Print and changing
  Popup from 'Copies & Pages' to e.g. 'Layout'.
- Improved support for help and application menu items.
- Added default implementations for wxTextCtrl::Replace and wxTextCtrl::Remove.
- Added support for 10.4 context menu.
- Added support for wxFRAME_EX_METAL and wxDIALOG_EX_METAL styles.
- Added wxNotebook::HitTest support.
- Corrected idle wake-up.
- Corrected wxExecute.
- Now makes use of full printer resolution.
- Corrected CGImage handling in wxBitmap.
- Now uses simple hide/show transition for top-level windows.
- Uses reasonable temporary path for wxFileName::CreateTempFileName.
- Added support for default key handling (escape, enter, command-period) even
  if there is no control on the frame or dialog that has the focus.
- Fixed joystick bugs including a link error and a crash if no joysticks
  were found.
- Removed an errorneous assertion from wxDir.
- Uses CoreFoundation based and thread-safe implementation for message boxes
  under Mach-O.
- wxBitmapButton is created as a content icon if wxBORDER_NONE is
  specified, otherwise as a bevel button.
- Mouse event ids set correctly (fixing problems with Connect in particular).
- Fixed wxZipInputStream read error on wxSocketInputStream which signals the
  end of file with an error.
- Xcode wxWidgets and minimal sample project files updated to create Universal
  binaries.
- Fix for setting wxMenuBar more than once.
- wxListBox minimum size bug fixed.
- Fixed wxNotebook off-by-one bug in HitTest.
- Fixed joystick GetXMin/Max bug.
- Fixed Unix domain socket problem in wxIPC.

wxCocoa:

- wxDirDialog is now native (Hiroyuki Nakamura).

wxWinCE:

- Pressing build-in joystick on WinCE phones fires wxEVT_JOY_BUTTON_DOWN event.
- Native wxCheckListBox implementation.
- All wxTopLevelWindows resizes accordingly to SIP visibility.
- ::wxGetUserName() implemented.
- wxDisplay enumeration support.
- Fixed wxFileDialog breakage on WinCE due to incorrect structure size.
- New wxSystemOption "wince.dialog.real-ok-cancel" to switch between WinCE
  guidelines with Ok-only dialogs and dialogs using wxButtons.
- Checkable items in wxToolMenuBarTool supported.
- Fixed date formatting and mktime.
- Fixed getting standard folder paths on WinCE.
- Support for backspace key on Smartphone.
- Made both windows wxMediaCtrl Windows backends compilable with wxWinCE - it
  is recommended that you use wxMEDIABACKEND_WMP10 on this platform
  directly, however.
- Added support for the context menu event (wxContextMenuEvent)
  and added platform-specific wxWindow::EnableContextMenu.
- Fixed wxGenericFileDialog to work with WinCE.
- Fixed compilation and menubar disappearance on Windows Mobile 5.

wxUniv:

- Send wxEVT_SCROLL_XXX events from wxSlider (Danny Raynor).

wxX11:

- Invisible text problem fixed.
- Bitmap clipping with masks and scaling improved.
- Fixed a crash bug in the generic timer.

Unix:

- NO_GCC_PRAGMA is not used any more, remove checks for it if you used it.


2.6.2
-----

All:

- Fixed wxScopeGuard to work with VC++, documented it.
- Fixed proxy handling in wxURL.
- Added wxEVT_MEDIA_LOADED event for wxMediaCtrl.
- Added new methods to wxMediaCtrl (wxURI version of Load, ShowPlayerControls).
- Added wxZipFSHandler::Cleanup() (Stas Sergeev).
- Added wxImage::RotateHue() and RGB <-> HSV conversions (John Anderson).
- Fixed compilation with IBM xlC compiler.
- wxABI_VERSION, see 'Backward Compatibility' topic overview in the manual.
- Added wxLongLong::ToDouble().
- Added wxDateTime::[Make]FromTimezone(), fixed several TZ-related bugs.
- Fixed bug in wxStreamBuffer::Read(wxStreamBuffer *) (Paul Cornett).
- Fixed wxListbook and wxChoicebook internal layout.

All (GUI):

- Added wxStaticText::Wrap()
- wxChoice and wxComboBox::GetSelection() now returns completed selection,
  added a new GetCurrentSelection() function having the old behaviour.
- Added wxXmlResource::Unload().
- Possibility of modeless wxWizard dialog (with presentation in sample).
- Fixed a rare crash due to malformed HTML in wxHTML (Xavier Nodet).