Keymap: Add Defaults button to revert keymap

Fixes #9980

Since hrev44455 we save your modifier keys settings when you switch
keymaps so you could get your modifiers keys messed up and unable to
get back to normal. This Defaults button allows you to override all
that and go back to the default US-International keymap with default
modifiers so you can start with a fresh slate and set things up the
way you want.

Also moved Revert button to the left side next to the Defaults button.
We do this on other preflets, the right side is reserved for an Apply
or OK button, and, if the preflet doesn't have one, is left empty.

* Added missing 'const' for the entry_ref paramter of Load(), and Save().
* Cleaned up Keymap.h.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41331 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Factored out a single base class out of the three Keymap implementations we
had in our tree.
* Adapted Keymap, <input>keyboard, and consoled to use it - the additional
functionality is implemented via a subclass in the first two cases.
* "keymap" will come next.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36328 a95241bf-73f2-0310-859d-f6bbb57e9c96

* removed KeymapMessageFilter, as it is no longer needed
* fixed a couple of issues with respect to internal/external naming of
keymaps and the respective files, hopefully such that there's always one
keymap active in the view: either one that has been selected or (Current)
if any changes have been applied
* replaced the dead-key-menubar with a menufield (thanks Axel, looking much
better)
cleanup:
* removed remnants of Use-button (message constant and switch-case)
* dropped 'Save' menu item, as it wasn't implemented anyway and would now
never be enabled
* removed fFirstTime, as it caused problems, but did not serve any purpose
anymore


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30734 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added support for selecting the dead key trigger characters from a menubar,
offering two choices for acute and diaeresis as well as allowing to switch
off each dead key completely.
* moved the textview on a line of its own such that the dead key menu and
the modifier-switching button live together on one line
* added enum dead_key_index and used it at a couple of places instead of
having to use the magic numbers 1-5
* refactored the actual updating of the fChars buffer from SetKey() into
_SetChars(), which is now being invoked by SetDeadKeyTrigger(), too

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30718 a95241bf-73f2-0310-859d-f6bbb57e9c96

* dead keys can now be enabled/disabled via middle mouse button
* fDragKey must be reset in MouseUp() as otherwise it is not possible to
drag a key from one keymap to the textview and then from the textview to the
same key of another keymap
* _HandleDeadKey() now ignores modifier keys as otherwise dead keys that
required pressing a modifier (like the tilde on the German keyboard) failed
to highlight the resulting characters
What's still missing is a way to edit the resulting characters for each dead key, but I am not yet sure how to do that in an elegant way

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30699 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added Keymap::operator=().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29824 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added ability to change modifier keys (per drag and drop).
* Added button to switch shortcut modifier keys.
* Added option to make the KeyboardLayoutView non-editable.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29801 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Imported Modifier() and KeyForModifier() from the Keymap class in the
keyboard input server add-on. We should really have a common source for this
somewhere...
* Used that functionality to change the modifiers when using the mouse, too.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29756 a95241bf-73f2-0310-859d-f6bbb57e9c96

* The Keymap now has a listener mechanism for changes.
* If the current Keymap is changed, the selection and use/revert buttons now
actually work.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29700 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Started implementing a SetKey() function to change the current keymap;
right now, it can only replace keys with the same mapped length.
* Cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29695 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Made GetChars() save against uninitialized keymaps (it will no longer crash).
* Added Map() function.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29667 a95241bf-73f2-0310-859d-f6bbb57e9c96

Keymap preferences now saves an attribute on the Key_map file to indicate
what keymap it came from. This allows us to indicate the current keymap in
the list views. I'm not sure how to get the build system to populate that
attribute by default though.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24924 a95241bf-73f2-0310-859d-f6bbb57e9c96

* not a "chef d'oeuvre" but revert and apply buttons should behave as
expected now
* removed some dead code


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24180 a95241bf-73f2-0310-859d-f6bbb57e9c96

* style cleanup, new style casts, license header updates


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24113 a95241bf-73f2-0310-859d-f6bbb57e9c96

Renamed src/prefs to "preferences", as the directory is usually called in BeOS.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13263 a95241bf-73f2-0310-859d-f6bbb57e9c96

Keymap: Add Defaults button to revert keymap

Fixes #9980

Since hrev44455 we save your modifier keys settings when you switch
keymaps so you could get your modifiers keys messed up and unable to
get back to normal. This Defaults button allows you to override all
that and go back to the default US-International keymap with default
modifiers so you can start with a fresh slate and set things up the
way you want.

Also moved Revert button to the left side next to the Defaults button.
We do this on other preflets, the right side is reserved for an Apply
or OK button, and, if the preflet doesn't have one, is left empty.

* Added missing 'const' for the entry_ref paramter of Load(), and Save().
* Cleaned up Keymap.h.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41331 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Factored out a single base class out of the three Keymap implementations we
had in our tree.
* Adapted Keymap, <input>keyboard, and consoled to use it - the additional
functionality is implemented via a subclass in the first two cases.
* "keymap" will come next.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36328 a95241bf-73f2-0310-859d-f6bbb57e9c96

* removed KeymapMessageFilter, as it is no longer needed
* fixed a couple of issues with respect to internal/external naming of
keymaps and the respective files, hopefully such that there's always one
keymap active in the view: either one that has been selected or (Current)
if any changes have been applied
* replaced the dead-key-menubar with a menufield (thanks Axel, looking much
better)
cleanup:
* removed remnants of Use-button (message constant and switch-case)
* dropped 'Save' menu item, as it wasn't implemented anyway and would now
never be enabled
* removed fFirstTime, as it caused problems, but did not serve any purpose
anymore


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30734 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added support for selecting the dead key trigger characters from a menubar,
offering two choices for acute and diaeresis as well as allowing to switch
off each dead key completely.
* moved the textview on a line of its own such that the dead key menu and
the modifier-switching button live together on one line
* added enum dead_key_index and used it at a couple of places instead of
having to use the magic numbers 1-5
* refactored the actual updating of the fChars buffer from SetKey() into
_SetChars(), which is now being invoked by SetDeadKeyTrigger(), too

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30718 a95241bf-73f2-0310-859d-f6bbb57e9c96

* dead keys can now be enabled/disabled via middle mouse button
* fDragKey must be reset in MouseUp() as otherwise it is not possible to
drag a key from one keymap to the textview and then from the textview to the
same key of another keymap
* _HandleDeadKey() now ignores modifier keys as otherwise dead keys that
required pressing a modifier (like the tilde on the German keyboard) failed
to highlight the resulting characters
What's still missing is a way to edit the resulting characters for each dead key, but I am not yet sure how to do that in an elegant way

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30699 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added Keymap::operator=().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29824 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added ability to change modifier keys (per drag and drop).
* Added button to switch shortcut modifier keys.
* Added option to make the KeyboardLayoutView non-editable.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29801 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Imported Modifier() and KeyForModifier() from the Keymap class in the
keyboard input server add-on. We should really have a common source for this
somewhere...
* Used that functionality to change the modifiers when using the mouse, too.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29756 a95241bf-73f2-0310-859d-f6bbb57e9c96

* The Keymap now has a listener mechanism for changes.
* If the current Keymap is changed, the selection and use/revert buttons now
actually work.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29700 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Started implementing a SetKey() function to change the current keymap;
right now, it can only replace keys with the same mapped length.
* Cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29695 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Made GetChars() save against uninitialized keymaps (it will no longer crash).
* Added Map() function.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29667 a95241bf-73f2-0310-859d-f6bbb57e9c96

Keymap preferences now saves an attribute on the Key_map file to indicate
what keymap it came from. This allows us to indicate the current keymap in
the list views. I'm not sure how to get the build system to populate that
attribute by default though.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24924 a95241bf-73f2-0310-859d-f6bbb57e9c96

* not a "chef d'oeuvre" but revert and apply buttons should behave as
expected now
* removed some dead code


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24180 a95241bf-73f2-0310-859d-f6bbb57e9c96

* style cleanup, new style casts, license header updates


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24113 a95241bf-73f2-0310-859d-f6bbb57e9c96

Renamed src/prefs to "preferences", as the directory is usually called in BeOS.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13263 a95241bf-73f2-0310-859d-f6bbb57e9c96