px4-firmware/NxWidgets/ChangeLog.txt

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1.0 2012-03-22 Gregory Nutt <gnutt@nuttx.org>
* The initial release of the NxWidgets package
1.1 2012-05-19 Gregory Nutt <gnutt@nuttx.org>
* Updated and verified the NxWidgets DOxygen documentation. Contributed
by Jose Pablo Carballo.
* IBitmap, CRlePalettBitmap: Extended class to support differnt LUTs
for selected and non-selected images.
* CImage: If selected, uses different LUTs based, different borders.
CImage is now basically a button type.
* CImage: Add logic to hightlight an CImage (using the selected LUT).
* nxwm: The tiny NX window manager (NxWM) is being developed in this directory.
* UnitTests/nxwm: A unit test for the NX window manager.
* 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).
* During integration of NxWM, corrected numerous problems with NxWidgets
running on toolbars and framed windows. That capability was commented
out in the 1.0 release but is verfied functional in 1.1.
* CRlePalettBitmap: Fix an error in the text that determines if we
need to "rewind" to the beginning of the image.
* CRlePalettBitmap: Fixe a positioning problem. It was actually losing
the last row of every image!
* CNxWidget: Removed support for "shelving" widgets. I will be removing
some lesser used feature over time in order to reduce the NxWidgets
footprint.
* CNxWidget: Removed support for reference constants and close types.
The goal is to ge the base widget class as small as possible.
* CNxTkWindow: Fix uninitialized pointer value.
* CNxToolbar: Need to "fake" the fix position callback to avoid
deadlock waits for the callback that won't happen.
* CNxTkWindow: Fix toolbar background color
* CWidgetControl: Don't declare the the geometry is good until a non-NULL
window size is received.
* CGraphicsPort and CWidgetControl: If the underlying graphics device
is write-only, then we have to render fonts a little differently.
* CNxWidgets, CWidgetControl, and CRectCache: Big change! Remove all support
for widgets in a "vertical" hierarchy. Now widgets exist in a flat,
two-dimensional space and should not overlap. This should greatly
reduce the memory requirements and, since, NuttX already supports
a hierarchical windowing system, does not result in loss of functionality.
* CNxWidgets and CWidgetControl. Remove specific built-in support for
modal loops. There are too many different control mechanisms that might
be needed. Replace with hooks to control widget events from totally
external logic.
* CWindowEventHandler, CWindowEventHandlerList, CWidgetControl: New
callback classes to receive notifications about window events.
* NxWM::CFullScreenWindow and NxWM::CTaskbar: Add support in NxWM for full
screen window applications.
* All application windows now use CWindowEventHandler and CWindowEventHandlerList
to get notifications about mouse and keyboard events. These class will
then automatically handle polling (with no need for a modal loop).
* NxWM::CTouchscreen and NxWM::CCalibration: Add touchscreen support (still a long
way to go).
* NxWM::g_playBitmp: Change the play icon again. These tiny touch icons
must be very simple.
* NxWM::CCalibration: Beef up touch input handling logic. Now changes the
color of the touch circle to yellow when it is touched.
* NxWM::CTouchscreen: Do not read touchscreen data when there is no consumer.
* NxWM::CWindowControl: Add new class to wrap CWidgetControl and provide
some special mouse and keyboard input event handling.
* NxWM::CTaskbar: Correct the calculation of the physical size of the
display.
* NxWM::CCalibration: run method must clear m_stop when returning, or you can
never restart the Calibration window.
* NxWM::CTaskbar: On a failure to start an application, the application icon
CImage was being deleted twice.
* NXWidgets::CImage: Now handles mouse click callbacks. CImage is now really
a button. Probably should separate basic imaging functionality as CImage
and create a new CImageButton.
* NxWM::CStartWindow: Now ignores any close application button presses
(You can't close the start window).
* NxWM::CCalibration: The calibration application now has its own thread.
This was necessary for a proper integration with the taskbar.
* NxWM::CCalibration and NxWM:CTouchscreen: Changed the mechanism use
to report calbration data. It is now reported directly from CCalibration
to CTouchscreen. If external logic needs calibration, it can now get it
from CTouchscreen instead of CCalibration. This change was necessary
to make the termination conditions of CCalibration clean (it used to
have to persist until some external logic got the Calibration data).
* IApplication, IApplicationWindow, and all classes that inherit from
these: Now support method to report if the application is a full-screen
or a normal application. This is necessary to prevent CTaskbar from
displaying a task bar on top of a full-screen window.
* NxWM::CTaskbar: Ooops... minimizing the wrong application!
* NxWM::CNxConsole: Add a on_exit() exit handler that will close the
NxConsole window when the NSH thread exits. A correct build now depends
on having CONFIG_SCHED_ONEXIT defined.
* NXWidgets::CNxWidget: Add a new onPreRelease() method.
* NXWidgets::CButton, CButtonArry, CImage now post action event at pre-release time.
* NxWM: ICON touches are now drive by action events instead of click events.
* NXWidgets::CNxTkWindow: Reported size of a framed window must exclude the
height of the tool bar (if present)
* TODO.txt: Add a file to keep track of issues.
* NxWM::CStartWindow and IApplicationFactory: This is a substantial
redesign. IApplication wraps an application. However, if we want to
be able to start multiple copies of an application, then we need to
be able to create multiple IApplication instances from the start window.
Enter IApplicationFactory. Icons in the start window now correspond
to application factories; icons in the task bar no correspond to
application instances.
* NxWM::CStartWindow and CWindowControl: The above change necessitated
another architectural change: When create applications, it is sometimes
necessary to wait for windows events. The above change moved the
application creation to the window event thread, hence, causing deadlocks
wheneven the logic tried to wait for a window event. The solution was
to create a new thread, called the start window thread, that runs
asynchronously and can wait for windoew events.
* doc/NxWM-ThreadingModel.ppt: Documented the now rather complex NxWM
threading model.
1.2 2012-06-15 Gregory Nutt <gnutt@nuttx.org>
* NXWidgets::CCallback: callback arguement is now type CCallback and not
CWidgetControl; Added a method to redirect keyboard contacts to either
the widgets in the window (via CWidgetControl) or to an NxConsole (via
nxcon_kbdin()).
* NXWidgets::INxWindow, CBgWindow, CNxTkWindow, CNxToolbar, CNxWindow:
Now pass the CCallback intances as the callback argument instead of
the CWidgetControl instance. New method redirectNxConsole() will
support redirection of any window keyboard input to the NxConsole
(via CCallback).
* NxWM:CNxConsole: Configures the NxConsole window to redirection keyboard
input to the NxConsole; redirects standard input to the NxConsole
device driver.
* NxWM:CKeyboard: Add a new class that implements a keyboard listener
thread. This thread reads from /dev/console and injects the keyboard
input into NX. NX will determine which window is at the top of the
heirarchy and re-direct the keyboard input to only that top window.
This solves an important problem with, for example, running multiple
copies of the NxConsole: On the copy of the NxConsole at the top of
the heirarchy should get the keyboard input.
* UnitTests/nxwm/main.cxx: Now starts the keyboard thread if
CONFIG_NXWM_KEYBOARD is defined.
* NxWM::CTaskbar: After drawing the task bar, need to raise the
application window otherwise the taskbar will be on the top and
keyboard input will not be received by the top application.
* NxWM::CTaskbar: Bugfix... previous window should not be minimized
when a new window is started. It should stay in a maximized state
so that it will re-appear with the window above it is closed or
minimized.
* NxWM::CHexCalculator: Add a hexadecimal/decimal calculator
example.
* NXWidgets::CNxTkWindow: Back out height adjustment in the getSize()
method. The code was correct as it was before.
* NXWidgets::CButtonArray and NXWidgets::CGraphicsPort: There is
a kludge in there to handle the case where we cannot read the
background data because the LCD does not support read operations.
In that case, we just use the default background color. However,
that doesn't work either for the case where the background color
changes when the widget is selected. Then the background color
in the font is wrong. Fixed in CButtonArrary, but the problem
probably exists in other places as well.
* NxWM: Increase default spacing of icons on the Start Window.
* NxWM::CHexCalculator: Fix some non-standard calculator behavior
after = is pressed. Use upper case hex. Increase font size.
* nxwm/Makefile: Fix error that creapt in during some other
recent check-ins.
1.3 2012-xx-xx Gregory Nutt <gnutt@nuttx.org>