OSystem now just returns a nullptr if there is no text to speech manager instance
(because none is compiled into the binary, or the system doesn't provide support
for it). This removed the need for the engine authors to add scummvm osystem compile
time options checks into their engine code
When accessing a GUI dialog from a game, such as to save or load
a game, we are still able to quit if the force RTL option is not
enabled. But when that option is enabled, it only returned to
the launcher after closing the dialog, which is strange and a
discrepency with the quit behaviour. This commit implements the
same behaviour for RTL as we have for Quit.
The idea is to allow backends to start a game even after the
LauncherDialog has been created, and for that they need a way
to close the existing GUI dialogs.
* Delete multiple empty rows
* Make getVolume non-virtual and leave just the implementation
in base class
* Resolve warning about signed / unsigned comparison in
gui-manager
* Clear availableVoices when updating voices on linux
* By default set language to transMan language on windows
(if the transMan is available)
* Remove freeVoices method from Windows ttsMan, it isn't needed
anymore
- Add comment to tts initialization on Windows
- Correctly free the voicesInfo in linux ttsMan
- Remove popState method from linux-text-to-speech.h and
windows-text-to-speech.h
- Add tts to help in configure
- Refactor language setting in gui-manager.cpp
It counted with english being the default language in
ttsMan constructors, which isn't true anymore.
The ScummVM was crashing because of an assert, when there was less
voices availaible, than what was set in the ConfMan.
Now the voice just falls back to 0th voice, if there are not
enough voices.
