When I was writing, using normal parentheses, if I entered internal fractions, the parenthesis was visibly small and not beautiful.

So I tried to change the normal parenthesis to \left or \right, but each needs the other, and when the user writes the expression starting with opening the parenthesis '\left(' the system fails because it does not find the \right.

So I tried to create a button for myself, in order to create both the \left (and the \right) and let the user type in between. However, I'm not sure how to set it up, I've tried several cases but I don't understand how to do it or if it's possible.

I am currently utilizing the MathField widget in Flutter for text input. However, unlike the conventional TextField, I have observed that tapping on the MathField does not allow for cursor movement, restricting it solely to arrow keyboard navigation. Could you kindly provide guidance on resolving this issue to enable cursor movement through both tap and arrow keyboard input in the MathField widget?

I tried to make movement courser when tapping down but I couldn't find node position from global position.

Feature description

I hope to increase the cursor click to move to the corresponding position
You can click to edit expressions, numbers, and text. You can also click to edit nested expressions.

I am using math_keyboard in my app, when it opens and i want to navigate to more keys like square root and the like the log() give an error like this

======== Exception caught by rendering library =====================================================
The following assertion was thrown during layout:
A RenderLine overflowed by 1.5 pixels on the right.

The relevant error-causing widget was:
MaterialApp MaterialApp:file:///D:/PROGRAMMING/AndroidStudioProjects/learnmath/lib/src/app.dart:28:16
The edge of the RenderLine that is overflowing has been marked in the rendering with a yellow and black striped pattern. This is usually caused by the contents being too big for the RenderLine.

Consider applying a flex factor (e.g. using an Expanded widget) to force the children of the RenderLine to fit within the available space instead of being sized to their natural size.
This is considered an error condition because it indicates that there is content that cannot be seen. If the content is legitimately bigger than the available space, consider clipping it with a ClipRect widget before putting it in the flex, or using a scrollable container rather than a Flex, like a ListView.

So this means the log() needs more paint. I am debugging on infinix Hot S3 ( x573) to be precise.

Please how should I solve this?

Screenshots

Bug description

math_keyboard package won't run with newest flutter sdk.

see error below:

[flutter_lib_test] flutter pub get
Resolving dependencies...
Because math_keyboard >=0.0.1 depends on flutter_localizations from sdk which depends on intl 0.18.1, math_keyboard >=0.0.1 requires intl 0.18.1.
So, because flutter_lib_test depends on math_keyboard ^0.1.9 which depends on intl ^0.17.0, version solving failed.
exit code 1

To Reproduce

1. create a flutter app on the latest Flutter 3.10 sdk.
2. add math_keyboard: ^0.1.9 as dependency package.
3. run flutter pub get
4. see error.

Updating math_keyboard's intl package dependency to 0.18.1 should solve the issue.

Feature description

In standard Material textfields, you can add a textAlign property. The InputDecoration class doesn't have this ability, and thus neither does this widget. It would be very helpful for styling this widget if we could further style the content inside it. Thank you!

Feature description

In the demo when I copied from a math input I wanted to paste it back in an math input field.

Ideally, copying to a math input field would insert it where my cursor is right now.

So when I am in a fraction's denominator everything in my pasteboard would be copied into the fraction's denominator!

Feature description

Your documentation and examples have no examples where you can touch the input. How difficult would this be to implement with your underlying widgets?

Feature description

There should be a close keyboard button to make sure it can be closed, similar to the native on-screen keyboards. :)

Bug description

I wanna covert 10{cm}^{2} to Latex. but When i use _mathController.updateValue(TeXParser('10{cm}^{2}').parse());, UI show like this

To Reproduce

Steps to reproduce the behavior:
0. Use '...'
0. Run on '....'
0. See error

Expected behavior

A clear and concise description of what you expected to happen.

Screenshots

If applicable, add screenshots to help explain your problem.

How to change this button color?

Feature description

Hi Simpleclub, many thanks for this flutter plugin. Kudos to the team.

I noticed that the keyboard has only Mathematics characters/letter. I would like to know if there future possibilities of having the Math's expressions and regular characters (A - Z) on the same form field?. For example: Enabling users to type: "Find the value of X in the {equation}". Currently, I can only input the equation without "Find the value of X in the"

Bug description

when I need to set '{a}+{b}' to MathFieldEditingController, the convertMathExpressionToTeXNode add '()' to the expression, which it shouldn't.

To Reproduce

Steps to reproduce the behavior:

1. run the following code with debug , then you will see the node has 5 leaves, the start and the end leaf are '(', ')'

final node=convertMathExpressionToTeXNode(Parser().parse('{a}+{b}'));

Expected behavior

simple expression should not wrap with '()', '()' is only required when a lower priority expression as part of higher priority expression, like plus/minus expression as part of times expression

Screenshots

none

Bug description

../../../../development/flutter/.pub-cache/hosted/pub.dartlang.org/math_keyboard-0.1.9/lib/src/widgets/math_field.dart:338:25: Error: Method 'insert' cannot be called on 'OverlayState?' because it is potentially null.
 - 'OverlayState' is from 'package:flutter/src/widgets/overlay.dart' ('../../../../development/flutter/packages/flutter/lib/src/widgets/overlay.dart').
Try calling using ?. instead.
    Overlay.of(context).insert(_overlayEntry!);
                        ^^^^^^

Info

i use flutter 3.0.5
math_keyboard: 0.1.8 -> working
math_keyboard: 0.1.9 -> error

please revoke 0.1.9 version and change the version number to 0.2.x to avoid break change issue

Bug description

When trying to add fractions into the mathtextfield they end up giving a parser error after trying to edit

To Reproduce

Steps to reproduce the behavior:
_mathController.addLeaf(r"\frac{1");
_mathController.addLeaf("2");
_mathController.addLeaf("}{3");
_mathController.addLeaf("4");
_mathController.addLeaf("}");
_mathController.addLeaf("");

try editing the fraction using the math keyboard.

Expected behavior

It would be great if you could add fractions into the mathfield by using addLeaf(). Maybe I'm just not looking in the right places for this functionality.

"Parser Error: Expected '}', got 'EOF' makes sense since I'm deleting the bracket, but how do I make the fraction editable in the mathtextfield?

Hello and thank you first of all that you have put so much effort into the package and make it available to us.

Actually everything works very well, I only have a single problem. To help you understand the problem, maybe I should briefly describe my situation:
I am currently working on a math app and get a LaTeX string result, which I would like to edit with your package. So as soon as a MathField is created, I want to give it a MathFieldEditingController and change the value with mathFieldEditingController.updateValue('...'); with my LaTeX value when initializing the class. This all works very well, if I take the examples from your or the math_expressions package.

But if I want to take the LaTeX string from me and convert it to an expression I always get an error. I tried it with the TeXParser('...').parse();, as well as the Expression expression = parser.parse('...'); method. I also tried several times to transform the string somehow so that the expression can be created, however it did not work.

Of course it could be that I don't understand the method somehow, but can someone help me and tell me how to put the LaTeX string from me into your MathField?

Here you also have a few examples with the values and the exceptions that occurred, so that you understand even better what exactly I mean:

Feature description

please add = button as well because in some conditions we have to check is both sides are equal or not
A clear and concise description of your new feature.

Bug description

node.buildTeXString() seems to have a cursorColor property, but it really shouldn't need one. All it does is append something like \textcolor{#000000}{\cursor} to the end of tex string, and it seems to break loading it back into the MathField document

To Reproduce

Steps to reproduce the behavior:
Get a MathFieldEditingController and call .currentNode.buildTexString() and try to load the string back in

Expected behavior

No cursorColor attribute, loading back in without changes

Please delete this, I forked it and modified by myself.

Bug description

I can't goBack() cursor back to starting position

To Reproduce

Steps to reproduce the behavior:

1. I input full text of MathField

2. I input some characters to hide some of characters at start position

3. Then, I use PreviousButton that move cursor to start position

4. But I can't move cursor to start position

Bug description

The package seems to be incompatible with Flutter SVG, as the dependency for petitparser is out of date, set to ^4.0.2

To Reproduce

Steps to reproduce the behaviour:

1. Install math_keyboard
2. Install flutter_svg
3. Try to run app and observe error

Expected behavior

For both packages to work together

Error Log

Because math_keyboard >=0.0.1 depends on petitparser ^4.0.2 and xml >=5.4.0 depends on petitparser ^5.0.0, math_keyboard >=0.0.1 is incompatible with xml >=5.4.0.
And because flutter_svg 1.1.1+1 depends on xml ^6.0.1 and no versions of flutter_svg match >1.1.1+1 <2.0.0, math_keyboard >=0.0.1 is incompatible with flutter_svg ^1.1.1+1.
So, because app_name depends on both flutter_svg ^1.1.1+1 and math_keyboard ^0.1.6, version solving failed.
pub get failed (1; So, because app_name depends on both flutter_svg ^1.1.1+1 and math_keyboard ^0.1.6, version solving failed.)