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Canvas widgets: Difference between revisions
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==== C++ ==== | ==== C++ ==== | ||
* '''[[#Keyboard Handling|Keyboard input]]''': I haven't thought too much about it and also haven't done anything, but we will definitely need access to keyboard events {{Not done}} | * '''[[#Keyboard Handling|Keyboard input]]''': I haven't thought too much about it and also haven't done anything, but we will definitely need access to keyboard events {{Not done}} | ||
* '''Clipping''': For different reasons we will need to be able to clip some elements to certain regions. It should work with specifying either a clipping rectangle or by using a path. OpenVG seems to have support for it, although I haven't looked into it too deep. We also need to ensure that it also works with text. At least rectangular regions are needed.(eg. group/clip-min[0..1], group/clip-max[0..1]) {{Not done}} | * '''Clipping''': For different reasons we will need to be able to clip some elements to certain regions. It should work with specifying either a clipping rectangle or by using a path. OpenVG seems to have support for it, although I haven't looked into it too deep. We also need to ensure that it also works with text. At least rectangular regions are needed.(eg. group/clip-min[0..1], group/clip-max[0..1]) {{Not done}} | ||
* '''Animations''': I don't know if we should do animations just by using interpolator and settimer from Nasal or if we should implement some time-based animations directly in C++. At least we need some helper functions (eg. for blinking elements -> cursor, fading, ...) It would also be possible to implement animations purely in Nasal space, e.g. by supporting a subset of SMIL for SVG, so that existing tools could be used to created animated vector images that are converted to canvas properties by the Nasal parser. | * '''Animations''': I don't know if we should do animations just by using interpolator and settimer from Nasal or if we should implement some time-based animations directly in C++. At least we need some helper functions (eg. for blinking elements -> cursor, fading, ...) It would also be possible to implement animations purely in Nasal space, e.g. by supporting a subset of SMIL for SVG, so that existing tools could be used to created animated vector images that are converted to canvas properties by the Nasal parser. | ||
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=== Keyboard Handling === | === Keyboard Handling === | ||
{{Feedback}} | {{Feedback}} | ||
{{FGCquote | |||
|The layout and widget systems is now maturing, so I think after 3.2 I<br/> | |||
can start with porting PUI. Just one major component is missing, namely<br/> | |||
keyboard input and the according input focus.<br/> | |||
<br/> | |||
I guess this will take one or two more releases. | |||
|{{cite web |url=http://sourceforge.net/p/flightgear/mailman/message/32457866/ | |||
|title=<nowiki>Re: [Flightgear-devel] Notes on Aircraft Center...</nowiki> | |||
|author=<nowiki>Thomas Geymayer</nowiki> | |||
|date=<nowiki>2014-06-13</nowiki> | |||
}} | |||
}} | |||
Looking at the mouse handling code, the same technique we use for mouse handling could obviously also be used for keyboard handling: | Looking at the mouse handling code, the same technique we use for mouse handling could obviously also be used for keyboard handling: | ||