Jonas Schnelli a587f85853
Merge #18587: gui: Avoid wallet tryGetBalances calls in WalletModel::pollBalanceChanged
d3a56be77a9d112cde4baef4314882170b9f228f Revert "gui: Avoid Wallet::GetBalance in WalletModel::pollBalanceChanged" (Russell Yanofsky)
bf0a510981ddc28c754881ca21c50ab18e5f2b59 gui: Avoid wallet tryGetBalances calls before TransactionChanged or BlockTip notifications (Russell Yanofsky)
2bc9b92ed8b7736ad67876398a0bb8287f57e9b3 Cancel wallet balance timer when shutdown requested (Russell Yanofsky)
83f69fab3a1ae97c5cff8ba1e6fd191b0fa264bb Switch transaction table to use wallet height not node height (Russell Yanofsky)

Pull request description:

  Main commit `gui: Avoid wallet tryGetBalances calls` is one-line change to `WalletModel::pollBalanceChanged` that returns early if there hasn't been a new `TransactionChanged` or `BlockTip` notification since the previous poll call. This is the same behavior that was implemented in #18160, now implemented in a simpler way.

  The other commits are a straight revert of #18160, and two tweaks to avoid relying on `WalletModel::m_client_model` lifetime which were causing travis failures with earlier versions of this PR.

  Motivation for this change is to be able to revert #18160 and cut down on unnecessary cross-process calls that happen when #18160 is combined with #10102

  This PR is part of the [process separation project](https://github.com/bitcoin/bitcoin/projects/10).

ACKs for top commit:
  jonasschnelli:
    utACK d3a56be77a9d112cde4baef4314882170b9f228f

Tree-SHA512: 3cd31ca515e77c3bd7160d3f1ea0dce5050d4038b2aa441b6f66b8599bd413d81ca5542a197806e773d6092dd1d26830932b1cecbc95298b1f1ab41099e2f12f
2020-05-20 11:09:29 +02:00
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2020-04-01 12:49:15 +02:00
2020-04-15 10:59:10 +00:00
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2020-03-27 14:59:19 +01:00

This directory contains the BitcoinQT graphical user interface (GUI). It uses the cross-platform framework Qt.

The current precise version for Qt 5 is specified in qt.mk.

Compile and run

See build instructions (macOS, Windows, Unix, etc).

To run:

./src/qt/bitcoin-qt

Files and directories

forms

Contains Designer UI files. They are created with Qt Creator, but can be edited using any text editor.

locale

Contains translations. They are periodically updated. The process is described here.

res

Resources such as the icon.

test

Tests.

bitcoingui.(h/cpp)

Represents the main window of the Bitcoin UI.

*model.(h/cpp)

The model. When it has a corresponding controller, it generally inherits from QAbstractTableModel. Models that are used by controllers as helpers inherit from other Qt classes like QValidator.

ClientModel is used by the main application bitcoingui and several models like peertablemodel.

*page.(h/cpp)

A controller. :NAMEpage.cpp generally includes :NAMEmodel.h and forms/:NAME.page.ui with a similar :NAME.

*dialog.(h/cpp)

Various dialogs, e.g. to open a URL. Inherit from QDialog.

paymentserver.(h/cpp)

Used to process BIP21 payment URI requests. Also handles URI based application switching (e.g. when following a bitcoin:... link from a browser).

walletview.(h/cpp)

Represents the view to a single wallet.

Other .h/cpp files

  • UI elements like BitcoinAmountField, which inherit from QWidget.
  • bitcoinstrings.cpp: automatically generated
  • bitcoinunits.(h/cpp): BTC / mBTC / etc handling
  • callback.h
  • guiconstants.h: UI colors, app name, etc
  • guiutil.h: several helper functions
  • macdockiconhandler.(h/mm): macOS dock icon handler
  • macnotificationhandler.(h/mm): display notifications in macOS

Contribute

See CONTRIBUTING.md for general guidelines. Specifically for Qt:

Using Qt Creator as IDE

You can use Qt Creator as an IDE. This is especially useful if you want to change the UI layout.

Download and install the community edition of Qt Creator. Uncheck everything except Qt Creator during the installation process.

Instructions for macOS:

  1. Make sure you installed everything through Homebrew mentioned in the macOS build instructions
  2. Use ./configure with the --enable-debug flag
  3. In Qt Creator do "New Project" -> Import Project -> Import Existing Project
  4. Enter "bitcoin-qt" as project name, enter src/qt as location
  5. Leave the file selection as it is
  6. Confirm the "summary page"
  7. In the "Projects" tab select "Manage Kits..."
  8. Select the default "Desktop" kit and select "Clang (x86 64bit in /usr/bin)" as compiler
  9. Select LLDB as debugger (you might need to set the path to your installation)
  10. Start debugging with Qt Creator (you might need to the executable to "bitcoin-qt" under "Run", which is where you can also add command line arguments)