mirror of https://github.com/bitcoin/bitcoin
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
3.2 KiB
53 lines
3.2 KiB
Multiwallet Qt Development and Integration Strategy
|
|
===================================================
|
|
|
|
In order to support loading of multiple wallets in bitcoin-qt, a few changes in the UI architecture will be needed.
|
|
Fortunately, only four of the files in the existing project are affected by this change.
|
|
|
|
Three new classes have been implemented in three new .h/.cpp file pairs, with much of the functionality that was previously
|
|
implemented in the BitcoinGUI class moved over to these new classes.
|
|
|
|
The two existing files most affected, by far, are bitcoingui.h and bitcoingui.cpp, as the BitcoinGUI class will require
|
|
some major retrofitting.
|
|
|
|
Only requiring some minor changes is bitcoin.cpp.
|
|
|
|
Finally, three new headers and source files will have to be added to bitcoin-qt.pro.
|
|
|
|
Changes to class BitcoinGUI
|
|
---------------------------
|
|
The principal change to the BitcoinGUI class concerns the QStackedWidget instance called centralWidget.
|
|
This widget owns five page views: overviewPage, transactionsPage, addressBookPage, receiveCoinsPage, and sendCoinsPage.
|
|
|
|
A new class called *WalletView* inheriting from QStackedWidget has been written to handle all renderings and updates of
|
|
these page views. In addition to owning these five page views, a WalletView also has a pointer to a WalletModel instance.
|
|
This allows the construction of multiple WalletView objects, each rendering a distinct wallet.
|
|
|
|
A second class called *WalletStack*, also inheriting from QStackedWidget, has been written to handle switching focus between
|
|
different loaded wallets. In its current implementation, as a QStackedWidget, only one wallet can be viewed at a time -
|
|
but this can be changed later.
|
|
|
|
A third class called *WalletFrame* inheriting from QFrame has been written as a container for embedding all wallet-related
|
|
controls into BitcoinGUI. At present it just contains a WalletStack instance and does little more than passing on messages
|
|
from BitcoinGUI to the WalletStack, which in turn passes them to the individual WalletViews. It is a WalletFrame instance
|
|
that takes the place of what used to be centralWidget in BitcoinGUI. The purpose of this class is to allow future
|
|
refinements of the wallet controls with minimal need for further modifications to BitcoinGUI, thus greatly simplifying
|
|
merges while reducing the risk of breaking top-level stuff.
|
|
|
|
Changes to bitcoin.cpp
|
|
----------------------
|
|
bitcoin.cpp is the entry point into bitcoin-qt, and as such, will require some minor modifications to provide hooks for
|
|
multiple wallet support. Most importantly will be the way it instantiates WalletModels and passes them to the
|
|
singleton BitcoinGUI instance called window. Formerly, BitcoinGUI kept a pointer to a single instance of a WalletModel.
|
|
The initial change required is very simple: rather than calling `window.setWalletModel(&walletModel);` we perform the
|
|
following two steps:
|
|
|
|
window.addWallet("~Default", &walletModel);
|
|
window.setCurrentWallet("~Default");
|
|
|
|
The string parameter is just an arbitrary name given to the default wallet. It's been prepended with a tilde to avoid name collisions in the future with additional wallets.
|
|
|
|
The shutdown call `window.setWalletModel(0)` has also been removed. In its place is now:
|
|
|
|
window.removeAllWallets();
|