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| === Design considerations, ideas, thoughts, nothing final ===
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| Perhaps create an (abstract) interface / abstract class TileProvider? Not sure, if there is an use case.
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| Perhaps separation between http download and tile providing since http download is needed for wikipedia (and perhaps other stuff) integration also.
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| What about redirects? in general it seems to be a good idea to support them, but do we also need the ability to
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| forbid redirects of inform the user?
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| The TileLoader should be able to handle not only files, but also QByteArrays or whatever is delivered by the network plugin interface.
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| === Documentation of existing code ===
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| Here are drop notes of understanding how downloading http stuff happens:
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| {{class|HttpDownloadManager|kdeedu|4.x}} is the entry point if you want to download http things. | |
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| This class handles download jobs by first creating a simple {{class|HttpJob|kdeedu|4.x}}, and providing it to one of the {{class|DownloadQueueSet|kdeedu|4.x}} classes which can behave according to various {{class|DownloadPolicyKey|kdeedu|4.x}}.
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| A {{class|StoragePolicy|kdeedu|4.x}} belongs to the HttpDownloadManager to handle downloaded files properly.
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| It also relies on the {{class|PluginManager|kdeedu|4.x}} to provide a {{class|NetworkPlugin|kdeedu|4.x}} which implements the createJob
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| In the current imlementation (trunk just after 4.4 branching), there are many
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| HttpDownloadManagers, which in turn have their own PluginManager, StoragePolicy and DownloadQueueSets. This looks suboptimal and hard to evolve.
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| === Current Work ===
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| - Work is ongoing to have only one PluginManager belonging in the {{class|MarbleModel|kdeedu|4.x}}, which others could use when needed, currently
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| * {{class|LayerManager|kdeedu|4.x}},
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| * {{class|HttpDownloadManager|kdeedu|4.x}},
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| * {{class|PositionTracking|kdeedu|4.x}}
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| So HttpDownloadManagers would need to use it.
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| - Many HttpDownloadManagers created "in the wild" for different purposes, like in
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| * {{class|AbstractDataPluginModel|kdeedu|4.x}} (and so all *PluginModel which inherit...),
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| * {{class|MarbleModel|kdeedu|4.x}},
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| * {{class|TwitterPlugin|kdeedu|4.x}}
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| Maybe one would be enough, given the DownloadQueues and StoragePolicies framework...
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| === Design proposal ===
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| to be done
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