| 1 | This document contains a brief list of the most important OS/2-specific changes
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| 2 | in the Qt library from release to release.
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| 3 |
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| 4 |
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| 5 | CHANGES
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| 6 |
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| 7 | Beta 5 (06-12-2009)
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| 8 |
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| 9 | Improvements:
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| 10 |
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| 11 | - gui: Added support for the system clipboard. Qt can now exchange plain text,
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| 12 | HTML (Mozilla application suite) and bitmaps with other PM applications, as
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| 13 | well as all supported MIME data types with other Qt-based applications.
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| 14 |
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| 15 | - corelib: Use system unicode conversion routines to convert from the system
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| 16 | code page to Unicode and back. This makes it unnecessary to specify the
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| 17 | system encoding in the LANG environment variable -- Qt will use the system
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| 18 | encoding of the current process.
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| 19 |
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| 20 | - gui: Implemented support for the IME input box (used on DBCS systems) in Qt
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| 21 | applications with a known limitation that the input box is always positioned
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| 22 | at the lower left corner of the top-level window.
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| 23 |
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| 24 | - gui: Improved font handling on DBCS systems (patch by komh):
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| 25 | * Read national face names from font files instead of always taking the
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| 26 | Latin name.
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| 27 | * Use the PM_AssociateFont registry key to select a fallback font for
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| 28 | missing characters.
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| 29 |
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| 30 | - gui: Implemented QPixmap::grabWindow() which takes a screenshot of a window.
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| 31 |
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| 32 | - gui: Steal the Alt key from the PM which prevents the PM system menu to be
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| 33 | shown when single Alt is pressed in a Qt application. The system menu may
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| 34 | still be called using Alt+Space. Note that this also disables all default
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| 35 | shortuts from the system menu (Alt+F7, Alt+F10 etc.) so that they available
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| 36 | to Qt applications now. Exceptions are Alt+F4, Ctrl+Esc, Alt+Esc which are
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| 37 | not passed to Qt and will function as in regular PM applciations.
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| 38 |
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| 39 | - general: Binary Qt library builds are made portable: they do not contain
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| 40 | hard-coded paths to various Qt components any more and use relative
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| 41 | locations whenever possible. See
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| 42 | http://svn.netlabs.org/qt4/browser/tags/4.5.1-os2-beta5/doc/src/qt-conf.qdoc
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| 43 | for more info.
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| 44 |
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| 45 | - corelib: Improved the polling QFileSystemWatcher implementation so that it
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| 46 | doesn't eat all CPU when there are more than 100 items to watch, like when
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| 47 | showing a file open dialog with many files in a directory.
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| 48 |
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| 49 | - qmake: Improved processing of the project library list (LIBS variable) to
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| 50 | avoid appearance of raw library names that require substitution (fixes the
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| 51 | debug build of linguist).
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| 52 |
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| 53 | - qmake: Added support for DEF_FILE_VERSION, DEF_FILE_DESCRIPTION and
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| 54 | DEF_FILE_VENDOR project variables that allow to embed the description
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| 55 | string into a generated DLL or executable. For compatibility with other
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| 56 | platforms, these variables by default are mapped to VERSION,
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| 57 | QMAKE_TARGET_PRODUCT + QMAKE_TARGET_DESCRIPTION + QMAKE_TARGET_COPYRIGHT and
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| 58 | QMAKE_TARGET_COMPANY, respectively.
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| 59 |
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| 60 | Fixes:
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| 61 |
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| 62 | - gui: Table views showed alternate rows in black color instead of light gray.
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| 63 |
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| 64 | - gui: If some font style (e.g. Bold) does not provide characters for some
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| 65 | script (e.g. Cyrillic) while the Normal style does, a different font will be
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| 66 | chosen for Bold Cyrillic instead of drawing empty boxes.
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| 67 |
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| 68 | - corelib: Fixed two issues related to loading text codec plugins from the
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| 69 | application's directory.
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| 70 |
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| 71 | - corelib: Fixed QDir::absoluteFilePath(), midir()/mkpath(), rmdir()/rmpath()
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| 72 | that didn't properly handle relative and UNC paths which could cause various
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| 73 | path-related failures.
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| 74 |
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| 75 | - corelib: Properly report root directories of drives to Qt. This makes
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| 76 | letters of removable drives always seen by Qt (for example, in the file open
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| 77 | dialog) even if the medium isn't currently inserted.
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| 78 |
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| 79 | - corelib: Fixed unnecessary access to removable drives and a long delay and
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| 80 | noice caused by it when showing a file open dialog in Qt applications.
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| 81 |
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| 82 | Beta 4 (11-11-2009)
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| 83 |
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| 84 | Improvements:
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| 85 |
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| 86 | - Added sound support (implemented QSound class).
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| 87 |
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| 88 | - Added system tray support (QSystemTrayIcon class). This support requires
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| 89 | the Extended system tray XCenter plugin to be installed. See the note above
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| 90 | on how to compile and install this plugin.
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| 91 |
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| 92 | - Enabled QPlugin support on OS/2. This in turn enables SVG support for
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| 93 | QIcon (which is built as a Qt plugin DLL by default).
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| 94 |
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| 95 | - Better widget modality support (widgets blocked by modality cannot be
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| 96 | activated and moved using the mouse and the title bar anymore).
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| 97 |
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| 98 | - Added support for 'console' and 'windows' CONFIG options in .pro files.
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| 99 | Now, if 'windows' is present, the target executable will have the WINDOWAPI
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| 100 | attribute set which effectively makes it a PM application. This, in
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| 101 | particular, disables standard input, output and error streams so that when
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| 102 | started, the application will not have a console window attached to it.
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| 103 | By default, 'console' mode is active unless you perform a release build and
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| 104 | the application is linked against the QtGui library ('QT = gui' in .pro),
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| 105 | in which case the default is 'windows'.
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| 106 |
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| 107 | - Improved paint speed in Qt windows which should increase overall graphical
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| 108 | UI performance by 10%-20% in Qt4 applications.
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| 109 |
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| 110 | - Implemented setting window icons for top-level windows (using
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| 111 | QWidget::setWindowIcon()).
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| 112 |
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| 113 | - Added LxLite support to provide compression for executables and DLLs. The
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| 114 | compression is controlled by the 'exepack' CONFIG option which is turned on
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| 115 | by default for release builds if the LxLite executable is present in PATH
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| 116 | during the configure.cmd invocation. The compression may be turned off on a
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| 117 | per-project basis by adding a 'CONFIG -= exepack' line to the .pro file.
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| 118 |
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| 119 | - Improved the section of this README.OS2 file that describes how to properly
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| 120 | set the LANG variable to have correct national characters in file names and
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| 121 | in window titles of Qt applications.
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| 122 |
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| 123 | Fixes:
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| 124 |
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| 125 | - QProcess: The executable's path was not always added to BEGINLIBPATH.
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| 126 |
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| 127 | - Fixed-size top-level widgets could not be moved.
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| 128 |
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| 129 | - Application crash after pressing a button in a dialog window that resizes
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| 130 | this dialog (for example, makes it bigger to show more information).
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| 131 |
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| 132 | - Resizing top level windows using the top border broke mouse coordinates so
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| 133 | that Qt tought you pressed the mouse button in a different place of the
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| 134 | window than where you actually did it.
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| 135 |
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| 136 | - Events posted with QCoreApplication::postEvent() were only processed upon
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| 137 | receiving a next message from the system. This caused funny delays such as
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| 138 | controls in a Qt window still indicating the input focus (the dotted
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| 139 | rectangle) after the window was deactivated and losing this indication only
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| 140 | when the mouse pointer was moved over the window.
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| 141 |
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| 142 | - Don't replay mouse button press on a push button that is showing a popup
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| 143 | menu but instead hide the popup menu and unpress the button to get more
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| 144 | native look and feel.
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| 145 |
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| 146 | - Deactivating the window with a push button showing a popup menu would hide
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| 147 | the popup but leave the button pressed.
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| 148 |
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| 149 | - Fixed incorrect Qt dirty widget region calculation when processing WM_PAINT
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| 150 | messages. This fixes a lot of redraw problems (menu items in the main menu
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| 151 | bar, text in combo-boxes, various redraw problems in smplayer when switching
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| 152 | interfaces and going to/from fullscreen, and similar).
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| 153 |
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| 154 | Beta 3 (17-10-2009)
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| 155 |
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| 156 | Improvements:
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| 157 |
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| 158 | - Added proper font support. All outline (scalable) fonts visible in the Font
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| 159 | Palette should be now recognized by Qt. The fonts are hinted and antialiased
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| 160 | using the Freetype2 library when drawing text.
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| 161 |
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| 162 | - System fonts and colors are now used by default for Qt widgets.
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| 163 |
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| 164 | - configure.cmd now generates the main Makefile to simplify building of Qt.
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| 165 |
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| 166 | - corelib: QProcess: Implemented child termination detection.
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| 167 |
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| 168 | - corelib: QProcess: Implemented redirection to another QProcess.
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| 169 |
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| 170 | - corelib: QProcess now uses native pipes for stream redirection. This fixes
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| 171 | various issues like 'Socket operation on non-socket' errors during
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| 172 | parent-child communication.
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| 173 |
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| 174 | - corelib: QProcess: Make sure that the directory containing the executable
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| 175 | file is always searched (first) for DLLs needed by this executable. This
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| 176 | makes it unnecessary to change the current directory to the executable's
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| 177 | directory or add it to LIBPATH before starting the Qt application.
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| 178 |
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| 179 | - corelib: QProcess can now start applications of different type (e.g. PM
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| 180 | applications from text-mode applications) directly.
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| 181 | QProcess::startDetached() also works.
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| 182 |
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| 183 | - qmake: In debug_and_release mode, 'release-(all|clean|distclean|install|
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| 184 | uninstall)' and 'debug-(all|clean|distclean|install|uninstall)' make
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| 185 | targets are now available.
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| 186 |
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| 187 | Fixes:
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| 188 |
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| 189 | - Doing 'make clean' could result into a hang due to CMD.EXE command line
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| 190 | length limitation.
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| 191 |
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| 192 | - corelib: Fixed: QProcess: Lost data during stream redirection.
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| 193 |
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| 194 | - corelib: QSettings could sometimes distort data when saving it to the
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| 195 | registry (by replacing some characters with codes 0x80 and above with '?').
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| 196 |
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| 197 | Beta 2 (17-09-2009)
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| 198 |
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| 199 | Improvements:
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| 200 |
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| 201 | - Ported the network module (QtNetwork4.dll) and added to the default build.
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| 202 |
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| 203 | - Added modules sql, svg, xmlpatterns, scripttools, plugins to the default
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| 204 | build.
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| 205 |
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| 206 | - gui: Added recognition of dead keys which makes it possible to type
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| 207 | umlauts and other accented characters that require composition.
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| 208 |
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| 209 | - gui: Implemented standard cursor shapes in Qt applications.
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| 210 |
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| 211 | Fixes:
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| 212 |
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| 213 | - qmake: Fixed the trailing slash problem which caused qmake to generate
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| 214 | incorrect makefiles and fail to build the Qt library on some platforms.
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| 215 |
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| 216 | - configure.cmd: Return to the root source tree directory after building
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| 217 | qmake.
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| 218 |
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| 219 | - qmake: Automatically use different link flags when linking qmake with WLINK.
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| 220 |
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| 221 | - qmake: Recognize TARGET_SHORT that allows to specify a short DLL name
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| 222 | (vital for OS/2 which reqires DLL names to be in 8x3 format).
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| 223 |
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| 224 | - build: Set short DLL names for Qt modules on OS/2 using TARGET_SHORT.
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| 225 |
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| 226 | - corelib: Various fixes to file system classes that deal with the file name
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| 227 | case (which should be ignored on OS/2) and forward and back slashes.
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| 228 |
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| 229 | - corelib: Fixed: QMutex could let more than one thread access the protected
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| 230 | resource.
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| 231 |
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| 232 | - corelib: Standard stream redirection in QProcess should now work for
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| 233 | kLIBC-based child processes. Redirection for all other applications
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| 234 | (such as CMD.EXE) will be added later (seems to be a kLIBC bug/feature).
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| 235 |
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| 236 | - gui: Fixed erroneous QFileDialog behavior (duplicate entires in the list,
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| 237 | incomplete contents of the root directory of the current drive).
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| 238 |
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| 239 | - gui: Fixed: Ctrl+A..Z should generate characters with codes 0x01-0x1F.
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| 240 |
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| 241 | - gui: Fixed: Close popups when resizing/moving the top level window.
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| 242 |
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| 243 | - gui: Enabled actual enforcing min/max Qt widget constraints for top-level windows.
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| 244 |
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| 245 | - gui: Fixed child widget duplication when resizing top level widgets after
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| 246 | showing a popup; moving native child widgets should now work correctly.
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| 247 | This also fixed a number of redraw problems (for example, drawing the main
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| 248 | menu and tool bars in smplayer, moving tool bars around in other
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| 249 | applications such as textedit from the demo folder).
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| 250 |
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| 251 | Beta 1 (29-08-2009)
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| 252 |
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| 253 | - First public release.
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