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API: convert string fontsize to points immediately #7007

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Merged
merged 9 commits into from
Dec 12, 2016

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tacaswell
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This bakes into the text artist (via the FontProperties) the default
fontsize at the time of creation.

Possibly closes #7005

@tacaswell tacaswell added this to the 2.0 (style change major release) milestone Aug 30, 2016
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The upside of this is that this fixes one more class of thing that does not work with rc_context.

The down side is that, as implemented, you lose the nice string representation and it cuts against the request people have to re-style existing figures.

@tacaswell tacaswell force-pushed the api_set_font_size_at_creation_time branch from dbf9c62 to 8d64fae Compare September 5, 2016 20:29
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If we do decide to do this, then this needs to be extended to cover the rest of the rcparams that the font properties keeps track of.

@NelleV
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NelleV commented Oct 31, 2016

Any more thoughts on this?
That may be worth mentioning during our next meeting?

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I think the consensus is that this should be done for all of the font related rcparams to bring their behavior inline with the rest of the rcparams.

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@efiring @NelleV This is probably ready to review. Turns out the other properties I wanted to make sure we handled early were arleady handled early.

This may also fix one a usetex related bug (but I don't have enough time right now to track it donw).

@tacaswell tacaswell force-pushed the api_set_font_size_at_creation_time branch from 082add4 to ae89d3e Compare December 4, 2016 20:14
@@ -782,7 +782,7 @@ def draw(self, renderer):
y = y + posy
if renderer.flipy():
y = canvash - y
clean_line, ismath = textobj.is_math_text(line)
clean_line, ismath = textobj.is_math_text(line, self.get_usetex())
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matplotlib/text.py:785:80: E501 line too long (82 > 79 characters)

@@ -673,11 +683,11 @@ def __init__(self,
_init = None # used only by copy()
):
self._family = None
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Have you forgotten to change this?

if size is not None and size not in font_scalings:
try:
scale = font_scalings[size]
size = scale * FontManager.get_default_size()
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I think it is better to move this line into else block.

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It turns out that most of the rcParams were stashed at init time via #1329

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@Kojoley Kojoley left a comment

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get_size and get_size_in_points are returning the same value now, is it ok?

family = [six.text_type(family)]
elif (not is_string_like(family) and isinstance(family, Iterable)):
family = [six.text_type(f) for f in family]
family = _normalize_font_family(family)
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Minor thing, but this could be just self._family = _normalize_font_family(family)

def _normalize_font_family(family):
if is_string_like(family):
family = [six.text_type(family)]
elif (not is_string_like(family) and isinstance(family, Iterable)):
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not is_string_like(family) is always true here.

This bakes into the text artist (via the FontProperties) the default
fontsize at the time of creation.
@tacaswell tacaswell force-pushed the api_set_font_size_at_creation_time branch from a14ec7d to 244cdb1 Compare December 12, 2016 20:12
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LGTM. Seems much better to do this checking at __init__ time.

This appears to already be the case for all of these properties, but
remove the rcparams lookup from the get_* methods just to be sure.
`None` used to be a valid value for the style/slant and variant,
however in cc61700 the behavior was
changed to look up the defaults as set time (not get time) so there is
no reason to allow invalid values to be set to the internal state.
@tacaswell tacaswell force-pushed the api_set_font_size_at_creation_time branch from 17d67fc to 5f4eead Compare December 12, 2016 20:59
@QuLogic QuLogic merged commit f367003 into matplotlib:v2.x Dec 12, 2016
@tacaswell tacaswell deleted the api_set_font_size_at_creation_time branch December 13, 2016 00:12
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6 participants