[Calculator][Proposal]Remove partial result feature

Bug #1476374 reported by Riccardo Padovani on 2015-07-20
16
This bug affects 2 people
Affects Status Importance Assigned to Milestone
Ubuntu Calculator App
Medium
Unassigned
Ubuntu UX
High
James Mulholland

Bug Description

Partial result feature is broken and there is no easy way to fix it.

E.g: 1+2x2x (result is 5) x 2. On your screen there is 5*2, but the ressul is 9.

We cannot fix it in a simple way (tbh I think we cannot have it working at all) because we have advanced functions.
If there is something different from a ^ in the calculus we can calculate wrong partial result.

E.g.
3 + (1 * 2)

This seems easy, because there is a parethesis, but if we had a * 3 we have:
displayed: 5 * 3 = 15
actual = 3 + 3 *3 = 12

Due this reason I suggest to remove the feature.

Proposed solution:
 1. Get rid of temporarly result
 2. Instead of introduce multi line formula InputField
    - When entered formula exceed InputField width, then the new line wil appear

It will be good to also do it with Formula's History, to fix issue
https://bugs.launchpad.net/ubuntu-ux/+bug/1446808
The history displays could be limited to 3 lines. After formula exceeds 3 lines, the three dots will be displayed.

--- --- --- ---
UX Comment:

We should try to proceed with the multi-line formula Inputfiled (2.) to preserve temporary results in the U.I and boost utility.

Changed in ubuntu-calculator-app:
status: New → Confirmed
status: Confirmed → Triaged
tags: added: needs-design
summary: - [Proposal]Remove partial result feature
+ [Calculator][Proposal]Remove partial result feature

We need an input from UX team. That's why I marking it as invalid for Calculator (we unable to start implementing that till we don't get ux design)

Changed in ubuntu-calculator-app:
status: Triaged → Incomplete
summary: - [Calculator][Proposal]Remove partial result feature
+ [Calculator][Proposal][ux]Remove partial result feature
Changed in ubuntu-ux:
status: New → Incomplete
status: Incomplete → Confirmed
Changed in ubuntu-ux:
status: Confirmed → Triaged
assignee: nobody → James Mulholland (jamesjosephmulholland)
importance: Undecided → High
Changed in ubuntu-calculator-app:
importance: Undecided → Medium
description: updated
summary: - [Calculator][Proposal][ux]Remove partial result feature
+ [Calculator][Proposal]Remove partial result feature
description: updated
description: updated
Changed in ubuntu-ux:
status: Triaged → Fix Committed
Changed in ubuntu-calculator-app:
status: Incomplete → Triaged
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