Wladimir J. van der Laan 6e249e4678
Merge #13043: [qt] OptionsDialog: add prune setting
cbede7dbfde83d53ef38d257e9940af5f163b03c [qt] OptionsDialog: add prune setting (Sjors Provoost)

Pull request description:

  The default suggested value is 2 GB. Minimum is 1 GB (550 MB rounded up).

  When the user toggles this setting, a strong warning appears that undoing requires re-downloading the chain:

  <img width="478" alt="schermafbeelding 2018-05-15 om 12 35 24" src="https://user-images.githubusercontent.com/10217/40051858-7939cc20-583c-11e8-9120-327a75376732.png">

  Tooltip points out that actual disk usage can be higher. It's a bit vague on the "advanced features", because I'm assuming anyone who needs to use `-rescan` and `-txindex` will read the documentation, and a more detailed text would needlessly confuse everyone else.

  <img width="450" alt="schermafbeelding 2018-05-15 om 12 33 51" src="https://user-images.githubusercontent.com/10217/40051791-49d6156a-583c-11e8-97b9-7de6dfd8c481.png">

  The UI uses gigabytes for readability and easy of use. There is also no manual pruning UI (`prune=1`). The user will have to use `bitcoin.conf` for those things.

  Fixes #6461. When combined with #13029 the user, after pruning their node, can safely reset settings and/or use bitcoind without having to edit `bitcoin.conf`. However I don't think that's an essential prerequisite.

Tree-SHA512: e17aff276d7235fbd40796adb6431d430620788a753ee13bc064abd35d2edc4280a3d3cddc18e42b4e00edff13ed18fd4f2a966c6f0b43b689afd13673e0c4bf
2018-06-11 14:21:24 +02:00
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2018-01-30 13:43:26 +01:00
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2018-05-15 23:23:56 +03:00
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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. Qt 4 is also supported (see #8263).

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 and BIP70 (see https://github.com/bitcoin/bitcoin/pull/11622) 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/cpp)
  • macdockiconhandler.(h/cpp): 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)