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* Minor formatting such as adjusting links * Move sections of `doc/multiwallet-qt.md` to the source code and delete the file, as it is outdated * Fix typo in the release notes * Amend release process to mention update of BLOCK_CHAIN_SIZE0.14
MarcoFalke
8 years ago
7 changed files with 24 additions and 55 deletions
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Multiwallet Qt Development and Integration Strategy |
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In order to support loading of multiple wallets in bitcoin-qt, a few changes in the UI architecture will be needed. |
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Fortunately, only four of the files in the existing project are affected by this change. |
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Two new classes have been implemented in two new .h/.cpp file pairs, with much of the functionality that was previously |
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implemented in the BitcoinGUI class moved over to these new classes. |
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The two existing files most affected, by far, are bitcoingui.h and bitcoingui.cpp, as the BitcoinGUI class will require |
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some major retrofitting. |
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Only requiring some minor changes is bitcoin.cpp. |
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Finally, two new headers and source files will have to be added to bitcoin-qt.pro. |
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Changes to class BitcoinGUI |
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--------------------------- |
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The principal change to the BitcoinGUI class concerns the QStackedWidget instance called centralWidget. |
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This widget owns five page views: overviewPage, transactionsPage, addressBookPage, receiveCoinsPage, and sendCoinsPage. |
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A new class called *WalletView* inheriting from QStackedWidget has been written to handle all renderings and updates of |
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these page views. In addition to owning these five page views, a WalletView also has a pointer to a WalletModel instance. |
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This allows the construction of multiple WalletView objects, each rendering a distinct wallet. |
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A second class called *WalletFrame* inheriting from QFrame has been written as a container for embedding all wallet-related |
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controls into BitcoinGUI. At present it contains the WalletView instances for the wallets and does little more than passing on messages |
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from BitcoinGUI to the currently selected WalletView. It is a WalletFrame instance |
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that takes the place of what used to be centralWidget in BitcoinGUI. The purpose of this class is to allow future |
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refinements of the wallet controls with minimal need for further modifications to BitcoinGUI, thus greatly simplifying |
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merges while reducing the risk of breaking top-level stuff. |
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Changes to bitcoin.cpp |
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---------------------- |
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bitcoin.cpp is the entry point into bitcoin-qt, and as such, will require some minor modifications to provide hooks for |
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multiple wallet support. Most importantly will be the way it instantiates WalletModels and passes them to the |
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singleton BitcoinGUI instance called window. Formerly, BitcoinGUI kept a pointer to a single instance of a WalletModel. |
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The initial change required is very simple: rather than calling `window.setWalletModel(&walletModel);` we perform the |
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following two steps: |
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window.addWallet("~Default", &walletModel); |
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window.setCurrentWallet("~Default"); |
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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. |
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The shutdown call `window.setWalletModel(0)` has also been removed. In its place is now: |
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window.removeAllWallets(); |
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