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Avoid tooltip truncation in x axis if there is enough space #3998

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merged 6 commits into from Nov 11, 2017
Merged

Avoid tooltip truncation in x axis if there is enough space #3998

merged 6 commits into from Nov 11, 2017

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kaidohallik
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Truncation up to caretSize pixels could happen if label text produced tooltip element with size width:

  • left side tooltip: width < x and width > x - caretSize
  • right side tooltip: width < chartWidth - x and width > chartWidth - x - caretSize

Default caretSize = 5, so with default configuration truncation up to 5 pixels could happen.

Current problematic behaviour can be viewed in http://codepen.io/kaidohallik/pen/gmLQbN
'Blue exactly bad labelllll' is truncated.
After changing caretSize: 10 to caretSize: 0 no truncation, all is shown correctly.

It can fix someones problems in #1731
It's improvement of #1840

etimberg
etimberg approved these changes Mar 11, 2017
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@kaidohallik could you add a test case that shows how this changes the rendering?

@kaidohallik
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@etimberg I started coding tests. In this process I think I found additional improvement to #1731 - if calculated tooltip.xAlign='center' and tooltip text is long then this is truncated though there is space to show this tooltip.
I updated example in http://codepen.io/kaidohallik/pen/gmLQbN there is now another truncated tooltip 'Red very very very very very very long label' - it's possible to show this without truncation.
What is preferred further activity with this PR?

  • First option: I try to add tests only for this caretSize issue and will do new PR for additional improvement
  • Second option: I add new commit to this PR which solves more problems related to v2 beta: tooltips are sometimes truncated #1731 and write tests for both commits at once

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Let's do more commits here

@kaidohallik kaidohallik changed the title In tooltip x align calculation take into account caretSize [WIP] Avoid tooltip truncation in x axis if there is enough space Mar 12, 2017
@kaidohallik kaidohallik changed the title [WIP] Avoid tooltip truncation in x axis if there is enough space Avoid tooltip truncation in x axis if there is enough space Mar 14, 2017
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Work finished with this PR.

etimberg
etimberg reviewed Mar 14, 2017
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src/core/core.tooltip.js Outdated
} else {
model.opacity = 0;
}

model.xAlign = alignment.xAlign;
model.yAlign = alignment.yAlign;
model.x = backgroundPoint.x;
model.xCaret = backgroundPoint.xCaret;
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Would it make sense / be useful to also have a way to override the yCaret position as well?

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After reading this comment I started thinking that why not to use caretX, maybe can avoid this xCaret complexity in code.
And seems that this current code can be replaced with x2 = vm.caretX;.
So I made new commit where I removed xCaret and made change described above.

In y axis direction tooltips seem to be working ok and no need for changes.

It's quite a lot commits here already. Should I rebase?

@kaidohallik kaidohallik mentioned this pull request Apr 4, 2017
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@qiluo
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qiluo commented Sep 4, 2017

hopefully this could be included in 2.7 milestone, thanks

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etimberg commented Sep 4, 2017

@simonbrunel looks like we both approved this. Do you think we should merge it for 2.7?

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@kaidohallik could you rebase this PR so that it can be merged?

@kaidohallik
In tooltip x align calculation take into account caretSize
5616e98 
Truncation up to caretSize pixels could happen if label text produced tooltip element with size width:
* left side tooltip: width < x and width > x - caretSize
* right side tooltip: width < chartWidth - x and width > chartWidth - x - caretSize
Default caretSize = 5, so with default configuration truncation up to 5 pixels could happen.
@kaidohallik
avoid tooltip truncation if possible
6c1ca9e 
use whole chart area for displaying tooltip
@kaidohallik
in xAlign calculation take into account caretPadding
d800d4a
@kaidohallik
add tests for tooltip truncation avoid logic
ef18a57
@kaidohallik
use caretX instead of xCaret
dd668a3
@kaidohallik
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@benmccann rebase done

@etimberg etimberg added this to the Version 2.8 milestone Nov 9, 2017
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etimberg commented Nov 9, 2017

Looks like the build is failing with some linter errors. @kaidohallik can you fix and then I'll merge this

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@etimberg lint errors fixed

@etimberg etimberg merged commit 683e86e into chartjs:master Nov 11, 2017
@kaidohallik kaidohallik deleted the tooltip-x-align-caret-size branch November 13, 2017 06:01
yofreke pushed a commit to yofreke/Chart.js that referenced this pull request Dec 30, 2017
@kaidohallik @yofreke
Avoid tooltip truncation in x axis if there is enough space (chartjs#…
f8e9882 
…3998)

* In tooltip x align calculation take into account caretSize

Truncation up to caretSize pixels could happen if label text produced tooltip element with size width:
* left side tooltip: width < x and width > x - caretSize
* right side tooltip: width < chartWidth - x and width > chartWidth - x - caretSize
Default caretSize = 5, so with default configuration truncation up to 5 pixels could happen.

* avoid tooltip truncation if possible
use whole chart area for displaying tooltip

* in xAlign calculation take into account caretPadding

* add tests for tooltip truncation avoid logic

* use caretX instead of xCaret

* fix lint errors
@snyk-bot snyk-bot mentioned this pull request Mar 9, 2020
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@snyk-bot snyk-bot mentioned this pull request Apr 1, 2020
Open
exwm pushed a commit to exwm/Chart.js that referenced this pull request Apr 30, 2021
@kaidohallik @etimberg
Avoid tooltip truncation in x axis if there is enough space (chartjs#…
088fa5b 
…3998)

* In tooltip x align calculation take into account caretSize

Truncation up to caretSize pixels could happen if label text produced tooltip element with size width:
* left side tooltip: width < x and width > x - caretSize
* right side tooltip: width < chartWidth - x and width > chartWidth - x - caretSize
Default caretSize = 5, so with default configuration truncation up to 5 pixels could happen.

* avoid tooltip truncation if possible
use whole chart area for displaying tooltip

* in xAlign calculation take into account caretPadding

* add tests for tooltip truncation avoid logic

* use caretX instead of xCaret

* fix lint errors
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@etimberg etimberg etimberg approved these changes

@simonbrunel simonbrunel simonbrunel approved these changes

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@kaidohallik @etimberg @qiluo @benmccann @simonbrunel