NxWidgets-1.0 ============= The initial version of NxWidgets was released on March 22, 2012. This package has been used in several projects prior to its release to open source and is considered stable its initial release (although not all features have been fully verified). NxWidgets-1.1 ============= The 2nd release of the NxWidgets package was made on May 19, 2012. The headline new feature in this release is: * NxWM, the tiny window manager based on NX and NxWidgets. NxWM is true multiple window manager but only one window is displayed at a time. This simplification helps performance on LCD based products (in the same way that a tiled window manager helps) and also makes the best use of small displays. It is awkward from a human factors point-of-view trying to manage multiple windows on a small display. The window manager consists of a task bar with icons representing the running tasks. If you touch the task's icon, it comes to the top. Each window has a toolbar with (1) a title, (2) a minimize button, and (3) a stop application button using the standard icons for these things. User input via a touchscreen or mouse and keyboard is supported. There is always a start window that is available in the task bar. When you touch the start window icon, it brings up the start window containing icons representing all of the available applications. If you touch an icon in the start window, it will be started and added to the task bar. There is a base class that defines an add-on application and an interface that supports incorporation of new application. The only application that is provided is NxConsole. This is an NSH session running in a window. You should be able to select the NX icon in the start menu and create as many NSH sessions in windows as you want. (keybard input still comes through serial). This initial realease of NxWM should be considered an alpha release. All know issues are listed in the top-level TODO list. Other important new features include: * NxWidgets::IBitmap and NxWidgets::CRlePalettBitmap: Extended to support different color look-up-tables (LUTs). This allows images to be highlighted when touched, for example. * NxWidgets::CImage: Extended to support button-like behavior. CImage widgets now work well as touchable icons. * NxWidgets::CWidgetControl: Add a semaphore to force clients to wait if the size or position of the window is not yet known (multi-user mode only). Enabled and verified creation of framed windows. * NxWidgets::CWindowEventHandler and NxWidgets::CWindowEventHandler: Add support for getting callbacks for window events. * DOxygen documentation support. Contributed by Jose Pablo Carballo. An effort is underway to simplify NxWidgets and reduce its memory footprint: * NxWidgets::CNxWidget: Removed support for "shelving" widgets, reference constants, and close types. Remove all support for widgets in a "vertical" hierarchy. Now widgets exist in a flat, two-dimensional space and should not overlap. Removed built-in modal loops. Bug fixes include changes to the following (see the ChangeLog for details): * NxWidgets::CRlePalettBitmap, NxWidgets::CRlePalettBitmap, NxWidgets::CGraphicsPort, NxWidgets::CWidgetControl NxWidgets-1.2 ============= The 3rd release of the NxWidgets package was made on June 15, 2012. This release depends on NuttX-6.19 or above and should not be used with older NuttX releases. New features and enhancements include: * NxWM::CNxConsole: The NxWM NxConsole windows now correctly receive keyboard input. In version 1.1, NxConsoles received input from /dev/console. That, of course, leads to chaos when there a multiple windows trying to get input from the same device. There is now a keyboard listener task that will accept input from /dev/console and inject that input into the NX keyboard interface. NX will give the keyboard input only to the top window that has focus, eliminating the chaos. * NxWM::CHexcalculator: The NxWM demonstration/unit test now includes a hex calculator applications. This demonstrates the use of arrays of buttons within a window. Bugfixes: * NxWM::CTaskbar: Was inappropriately minimizing some windows. Fixes some window raising/lowering bugs. * NXWidgets::CButtonArray: Fix some coloring problems when rending button text in cases where we cannot read from the display device. As well as other, less critical bugs (see the ChangeLog for details) NxWidgets-1.3 ============= The 4th release of the NxWidgets package was made on September 29, 2012. This release depends on NuttX-6.22 or above and should not be used with older NuttX releases. There are no functional changes in this release of NxWidgets. This release is required in order to retain compatibility with the most recent versions of NuttX. These comptibility changes include: * Naming of function entry points * Build system changes * Changes needed for the NuttX configuration tool NxWidgets-1.4 ============= The 5th release of the NxWidgets package was made on December 20, 2012. This release depends on NuttX-6.24 or above and should not be used with older NuttX releases. This release corresponds to SVN revision r5447. Note: Nearly all changes between 1.3 and 1.4 were the result of the efforts of Petteri Aimonen. Additional new features and extended functionality in Version 1.4: * NxWdigets::CNxServer: Reduce start-up delay * NxWM::CApplicationWindow: Option to eliminate minimize button. * NxWM::CTaskbar: Option to eliminte the background image; highlight current icon in the task bar. * NxWidgets::CNumericEdit: New widget. Basically a CLabel with +/- buttons. * NxWidgets::CNxTimer: Replace the original signal-based solution with a work queue-based solution. This raises some isses about using the internal work queues from user space. * Build System: Misc improvements. * Tools: bitmap_converter.py will convert images to NxWidgets RLE-encoded format. Bugfixes (see the change log for details). Some of these are very important (marked *critical*): * NxWidgets::CCallback: Misplaced #endif * NxWM::CCalculator and NxWM::CStartWindow: Add forward declaration for icon images. * glych_cycle: Correct width, destructor needs to be public. * NxWidgets:CText and NxWidgets:CNumericEdite: Fix some memory freeing bugs * NxWidgets::CScrollingPanel: It is borderless for now because there was no easy way to redraw only the required part of the border. NxWidgets-1.5 ============= The 6th release of the NxWidgets package was made on February 1, 2013. This release depends on NuttX-6.25 or above and should not be used with older NuttX releases. This release corresponds to SVN revision r5595. Note: Nearly all of the changes between 1.4 and 1.5 were the result of the efforts of Petteri Aimonen. Additional new features and extended functionality in Version 1.5: * CNxWidgets::CTabPanel: A new widget contributed by Petteri Aimonen. This widget provides a tab panel, which has a button bar at the top and panels below it. Pressing a button will select the corresponding panel. * NxWidgets::CGraphicsPort: Many times we only want a constant background. In that case the old code filled the background, read it back, rendered the text and then wrote it back. When used with an LCD this causes some screen flicker. Added a variant of drawText that takes background color, so that the background and text can both be rendered at one go. * NxWM::CScrollingPanel::scrollChildren(): Avoid unnecessary redraws in CScrollingPanel * Kconfig: Added several "enabling" settings that must be selected to override the default setting. * UnitTests: Changes for compatibility with NuttX-6.25 Bugfixes: * NxWidgets::CGraphicsPort::move(): Fix typo bug in bounding rectangle calculation. * NxWM::CCycleButton: Remove the separator from CCycleButton. It draws in wrong place, and doesn't look very good in the correct place either. * NxWidgets::CLabel: The label was drawn as a single rectangular region, then a text was added to the on top of this. The result is that the text would flicker when the CLabel was updated. With this change, the two step update is replaced with a five step update: The background is updated as four rectangulear regions (leaving the previous text in place), then the new text is updated. This eliminates the flicker. * CGraphicsPort::_drawText: Renamed from CGraphicsPort::drawText in order to eliminate some naming collisions when overloaded in some configurations (i.e., when both bool and nx_pixel_t are uint8_t). NxWidgets-1.6 ============= The 7th release of the NxWidgets package was made on March 15, 2013. This release depends on NuttX-6.26 or above and should not be used with older NuttX releases. This release corresponds to SVN revision r5745. Note: All of the changes between 1.5 and 1.6 were the result of the efforts of Petteri Aimonen. Additional new features and extended functionality in Version 1.6: * NXWidgets::CNxWidget: Add an inline function to get the current style. * NXWidgets::CCycleButton: Make CCycleButton change state in onPreRelease(). This way the new value is already available when a listener gets the action event. * NxWidgets::CImage: Two enhancements: 1) Allow changing the bitmap even after the control has been created. 2) Allow giving 'null' to have the control draw no image at all. * NxWM::CTaskBar: Make a some methods of CTaskbar virtual to allow customizations. * NxWM::CTaskBar: Allow windows with null icon. This makes sense for e.g. full screen windows. * NxWM::CApplicationWindow: Add config options to override NxWM stop/minimize icons. * NwWM::CStartWindow, NxWM::CWindowMessenger: Get rid of the start window thread. Instead, handle all events through the USRWORK work queue. For me, this was necessary because I would open some files in button handlers and close them in NxTimer handlers. If these belonged to different tasks, the close operation would fail. Further benefits: + Gets rid of one task and message queue. + Reduces the amount of code required + Decouples CStartWindow from everything else - now it is just a window with application icons, not an integral part of the event logic. + All events come from the same thread, which reduces the possibility of multithreading errors in user code. + The user code can also send events to USRWORK, so that everything gets serialized nicely without having to use so many mutexes. Drawbacks: - Currently the work state structure is malloc()ed, causing one allocation and free per each input event. Could add a memory pool for these later, but the speed difference doesn't seem noticeable. - The work queue will add ~50 ms latency to input events. This is however configurable, and the delay is anyway short enough that it is unnoticeable. Bugfixes: * NxWidgets::CWidgetControl: Added another semaphore, boundssem, which is set as soon as the screen bounds are known. This corrects two problems: 1) Due to the way nxgl_rectsize computes the size, it will never be 0,0 like CWidgetControl expects. Therefore the size is considered valid even though it has not been set yet. 2) After the check is fixed to test for > 1, NxWM window creation will hang. This is due to the fact that it uses the screen bounds for determining window size. This was being blocked on geosem, which is only posted after the size has been set. * NxWidgets::CNxTimer: Previously repeated timers were re-enabled after the timer action event. Consequently, if the action event handler tried to stop the timer, the request would be ignored. Changes the order so that the timer is re-enabled before the callback. There is still no risk of re-entrancy, because everything executes on the USRWORK work queue. * NxWidgets::CLabel: Fix backward conditional compilation in the "flicker free" logic. * NxWidgets::CMultiLineTestBox: Fix text placement error. From Petteri Aimonen. * NxWidgets/tools/bitmap_converter.py: Fix bitmap_converter.py so that it works with indexed input images. NxWidgets-1.7 ============= The 8th release of the NxWidgets package was made on April 28, 2013. This release depends on NuttX-6.26 or above and should not be used with older NuttX releases. Note: All of the changes between 1.6 and 1.7 were the result of the efforts of Petteri Aimonen. Additional new features and extended functionality in Version 1.7: * NxWidgets::CGlyphButton: Generate action event, like CButton does. * NxWM::CTaskBar: Add option CONFIG_NXWM_TASKBAR_NO_BORDER to suppress drawing of the border on the taskbar. * NxWidgets::CNxTimer: Add function to check if CNxTimer is running. * NxWidgets::CNxWidgets: Allow overriding of the checkCollision() method. Bugfixes: * NxWidgets bitmap_converter.py: Fix bug when image width > 255 * NxWM::CScrollbarPanel: Fix spelling error in class name: CScollbarPanel should be CScrollbarPanel * NxWidgets::CGlyphButton: Prevent drawing outside of the bitmap size. NxWidgets-1.8 ============= The 9th release of the NxWidgets package was made on June 14, 2013. This release depends on NuttX-6.26 or above and should not be used with older NuttX releases. Note: Most of the changes between 1.7 and 1.8 were the result of the efforts of Ken Pettit and Petteri Aimonen. Additional new features and extended functionality in Version 1.8: * NxWM::CMediaPlayer: Shell application for an MP3 Media Player (from Ken Pettit). * NxWidgets::CGlyphSliderHorizontal and NxWidgets::CGlyphSliderHorizontalGrip: New widgets added by Ken Pettit. Includes a Unit Test. * NxWidgets::CImage: Allow a NULL pointer for a bitmap (from Petteri Aimonen). * NxWidgets::CNumericEdit: Delay before auto-incrementing now varies: A longer delay is required to start auto-incrementing and speed increases while pressed (from Petteri Aimonen). * NxWM::CTaskbar: Add a method to redraw the taskbar and the current application. This should only be necessary if the display loses state due to e.g. powerdown or other manual intervention (from Petteri Aimonen). Bugfixes: * NxWM::CCalibration: Fix a race condition that would cause the calibration screen to fail to come up when its icon was touched (from Ken Pettit). * Default priorities for NxWidget and NxWM threads should be 100, not 50, to be consistent with other default priorities. * NxWidgets::CGlyphSliderHorizontal: Fix a drawing error (from Ken Pettit). * Update the way that NSH the Unit Tests are registered as built-in NSH applications. NxWidgets-1.9 ============= The 10th release of the NxWidgets package was made on October 28, 2013. This release depends on NuttX-6.26 or above and should not be used with older NuttX releases. Additional new features and extended functionality in Version 1.9: * NxWM::CCalibration.cxx/hxx: If CONFIG_NXWM_CALIBRATION_MESSAGES is defined then CCalibration will provide some instructions in the center of the display. * NxWM::CCalibration.cxx/hxx: Add options to collect and average multiple samples at each location. Also logic to discard the most extreme samples before averaging. * NxWidgets::CScaledImage: This new class is a wrapper for an class the exports IBitMap. It will perform scaling via bi-linear interpolation so that images can be scaled to any size desired. * NxWM::CTaskbar:: Can now be configured to scale taskbar icons using NxWidgets::CScaledImage. * NxWidgets/libnxwidgets/src/glyph_nxlogo320x320.cxx: Add a big, 320x320 NuttX logo image. The older, smaller NuttX logo was renamed from nxlogo to nxlogo160x160 in all places. * NxWM::CCalibration and NxWM::CTouchscreen: Add a complex touchscreen scaling algorithm to handling the case where the measured X values also vary with y position (and vice versa). Bugfixes: (There are no bugfixes recorded for this release). NxWidgets-1.10 ============== The 11th release of the NxWidgets package was made on December 7, 2013. This release depends on NuttX-6.26 or above and should not be used with older NuttX releases. Additional new features and extended functionality in Version 1.10: * NxWM:Calibration and UnitTests/nxwm: Add logic to enable saving and recovering touchscreen calibration data. This depends upon having platform-dependent support for storage of configuration data. Portions suggested by Ken Pettit. NxWidgets-1.11 ============== The 12th release of the NxWidgets package was made on January 20, 2014. This release depends on NuttX-6.33 or above and should not be used with older NuttX releases. Additional new features and extended functionality in Version 1.11: * Primarily changes associated with the NuttX kernel build where the graphics application lies in user space and the graphics server lies in protected kernel space. This change is mostly a matter of repartitioning functionality and should not cause in any functional differences. NxWidgets-1.12 ============== The 13th release of the NxWidgets package was made on August 14, 2014. This release depends on NuttX-7.3 or above and should not be used with older NuttX releases. Additional new features and extended functionality in Version 1.12: * NxWM: Rename all ICON glyph files to include the size of the ICON as part of the file name. This allows us to support different sizes for the same ICON * NxWM: Add larger versions (approx 50x50) versions of all ICONs. * NxWM::CToolBar: Toolbar font ID can now be separately configured. * NxWM::CMediaPlayer: Will now dynamically position player controls based on the display and image sizes. * NxWM::CMediaPlayer: Add options to manage spacing of media player buttons and borders vs. borderless buttons. * NxWidget::CImage: Now includes methods to align images in the widget region. * NxWM::CMediaPlayer now uses the new CImage methods to align media controls in buttons. * NxWidgets::CStickyImage: A version of CImage that sticks in the selected state when clicked. * NxMW::CMediaPlayer: Now supports a pause button. * NxMW::CMediaPlayer: Convert CLabel to a CListBox to support selection of one of many media files to play. This should be a CScrollingTextBox to support an indefinitely large number of media files. * NxWidgets::CGlyphSliderHorizontal: No longer uses a hard-coded slider height; the slider height is now provided as a parameter, replacing the widget height which is now calculated from the glip image height. * NxWM::CMediaPlayer: Now calculates the volume slider height from the grip image height. * NxWidgets:CTabPanel: Make CTabPanel raise action event when tab is changed. Also add a function for getting the currently selected tab index. From Petteri Aimonen. * NxWidgets/Kconfig: Add configuration options to filter CMediaPlayer files based on extension. * NxWM::CMediaPlayer: Add logic to read files from the media mountpoint, filter them by extension, and display the file names in the listbox. * NxWM::CMediaPlayer: Now integrated with the NxPlayer library. * NxWidgets::CNxString: Add a getAllocSize() method to make it easier to convert CNxStrings to NUL-terminated C strings. * NxWM::CMediaPlayer: Add a CLabel that show the current fast forward/rewind speed. * NxWM::CKeyboard: Add support for a USB keyboard as the NxConsole and text widget input. Bugfixes: * NxWidgets: Fix typo RBG -> RGB. This makes NxWidgets incompatible with versions of NuttX 7.2 and below. * NxWidgets::CImage: Fix setImageLeft and setImageTop methods * NxMW::CMediaPlayer: Correctly catch the volume level change event. * NxWidgets::CGraphicsPort: Fix drawBitmapGreyScale method. Actually drew nothing because of several errors in positioning and buffer usage. * NxWidgets::CImage: Should not attempt to draw the "empty" regions at the top and the bottom of the image box in greyscale. * NxWidgets::CNxString: Make destructor virtual. From Petteri Aimonen. * NxWidgets::CTaskbar: Fix type of return value from openRawWindow() method. From Petteri Aimonen. * NxWidgets::CTabPanel: Modify behavior in showPage() method. Eliminate a duplicate redraw that caused flickering; re-order some logic so that widgets are hidden before operated on. From Petteri Aimonen. * NxWidgets::CNxTimer: Make CNxTimer stop itself before destruction. Otherwise a call to an invalid work queue entry may occur. From Petteri Aimonen. * NxWM::IApplicationFactory: Add a do-nothing, virtual destructor to eliminate a warning. * XWidgets::CNxWidget: Remove an unused bit field. NxWidgets-1.13 ============== The 14th release of the NxWidgets package was made on September 28, 2014. This release depends on NuttX-7.5 or above and should not be used with older NuttX releases. Additional new features and extended functionality in Version 1.13: * There are no new features in this release. This release simply updates some naming that is necessary for NxWidgets to build successfully with NuttX-7.5 and above. Bugfixes: * There are no new bug fixes in this release. NxWidgets-1.14 ============== The 15th release of the NxWidgets package was made on November 26, 2014. This release depends on NuttX-7.6 or above and should not be used with older NuttX releases. Additional new features and extended functionality in Version 1.14: * There are no new features in this release. This release simply correct all UnitTest/ files to account for the corrected syslog() prototype in NuttX 7.6. That change introduced an incompatibility between NuttX 7.6 and previous versions of the UnitTest code. Bugfixes: * There are no new bug fixes in this release. NxWidgets-1.15 ============== The 16th release of the NxWidgets package was made on April 14, 2015. This release depends on NuttX-7.9 or above and should not be used with older NuttX releases. Additional new features and extended functionality in Version 1.15: * The primary purpose of this release is update the NxWidgets and NxWM implementations to reflect changes in naming and interfaces in the NuttX 7.9 release * NxWidgets:: INxWindow, CNxWindow, CBgWindow, CNxTkWindow, CNxToolbar, CGraphicsPort updated to include a "caps" parameter in all drawLine() methods. This permits drawing a circular cap at the end of lines and better supports joining of line segments. Bugfixes: * There are no new bug fixes in this release.