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author | Petr Mrázek <peterix@gmail.com> | 2016-04-10 04:29:29 +0200 |
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committer | Petr Mrázek <peterix@gmail.com> | 2016-04-30 23:59:23 +0200 |
commit | 47e37635f50c09b4f9a9ee7699e3120bab3e4088 (patch) | |
tree | 061c2f675fb7e244ebe4b54ef206bfbd615c91f8 /libraries/logic/resources/ResourceProxyModel.h | |
parent | fcd4a482f759cd58ee319a51082d0146b7e426e2 (diff) | |
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NOISSUE split GUI stuff from logic library
Diffstat (limited to 'libraries/logic/resources/ResourceProxyModel.h')
-rw-r--r-- | libraries/logic/resources/ResourceProxyModel.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/libraries/logic/resources/ResourceProxyModel.h b/libraries/logic/resources/ResourceProxyModel.h new file mode 100644 index 00000000..98a3dbd1 --- /dev/null +++ b/libraries/logic/resources/ResourceProxyModel.h @@ -0,0 +1,39 @@ +#pragma once + +#include <QIdentityProxyModel> +#include <memory> + +#include "multimc_logic_export.h" + +/// Convenience proxy model that transforms resource identifiers (strings) for Qt::DecorationRole into other types. +class MULTIMC_LOGIC_EXPORT ResourceProxyModel : public QIdentityProxyModel +{ + Q_OBJECT +public: + // resultTypeId is found using qMetaTypeId<T>() + explicit ResourceProxyModel(const int resultTypeId, QObject *parent = nullptr); + + enum + { + // provide this role from your model if you want to show a placeholder + PlaceholderRole = Qt::UserRole + 0xabc // some random offset to not collide with other stuff + }; + + QVariant data(const QModelIndex &proxyIndex, int role) const override; + void setSourceModel(QAbstractItemModel *model) override; + + /// Helper function, usage: m_view->setModel(ResourceProxyModel::mixin<QIcon>(m_model)); + template <typename T> + static QAbstractItemModel *mixin(QAbstractItemModel *model) + { + ResourceProxyModel *proxy = new ResourceProxyModel(qMetaTypeId<T>(), model); + proxy->setSourceModel(model); + return proxy; + } + +private: + // mutable because it needs to be available from the const data() + mutable QMap<QPersistentModelIndex, std::shared_ptr<class Resource>> m_resources; + + const int m_resultTypeId; +}; |