[Moose-dev] Re: Theme aware-ish TRMorph

Why invert the colors?

Because lines are black?

Phil Le 2 mai 2015 00:08, "Peter Uhnák" i.uhnak@gmail.com a écrit :

Hi,

since I wanted to use DarkTheme I played around with TRMorph (since seeing giant white rectangle in dark theme is not very nice).

What I have done is moved the background color setting to `surface clear:` (instead of the original aCanvas fillRectangle).

And then if theme background luminance is dark (>0.5), I invert all the colors in the visualization. For dark theme the background is black, and not the theme background - at least to me it seems that black is much clearer.

Is this something that could be incorporated?

​

And the modified code:

"protocol: drawing"
TRMorph>>drawOn: aCanvas
"aCanvas is a FormCanvas"
 self checkSession.
 "aCanvas fillRectangle: bounds color: trachelCanvas color."
trachelCanvas playAnimations.
 "The drawing has to be done when a change in the shapes occured or when
there is an animation."
surface drawDuring: [:cs |
surface clear: trachelCanvas color.
 "We display the elements that are subject to the camera"
cs pathTransform
translateBy: (self extent / 2) asFloatPoint;
    scaleBy: trachelCanvas camera scale asFloat;
translateBy: trachelCanvas camera position negated asFloatPoint.
trachelCanvas shapes do: [ :trachelShape |
trachelShape drawOn: cs.
].
 "We display the elements that are _NOT_ subject to the camera"
cs pathTransform loadIdentity scaleBy: 1.001.
trachelCanvas fixedShapes do: [ :trachelShape |
trachelShape drawOn: cs.
].
].
 self theme backgroundColor luminance < 0.5 ifTrue: [
surface drawDuring: [ :cs |
cs paintMode restoreAfter: [
cs setPaint: Color white.
cs paintMode difference.
cs drawShape: (0 @ 0 extent: surface extent)
]
]
].
 "aCanvas translucentImage: surface asForm at: self bounds origin."
"asForm creates a new Form, which is likely to be expensive. This can be
cached"
aCanvas image: surface asForm at: self bounds origin sourceRect: (0 @ 0
extent: surface extent) rule: 34.

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