Qt写的一个读取并展示网络地图的程序

一个非常好的学习Qt加载图像的软件，并且读取网络地图，已经显示图像及多种操作，非常难得的资源，一个及其有价值的学习案例。

/****************************************************************************
** Resource object code
**
** Created by: The Resource Compiler for Qt version 5.9.5
**
** WARNING! All changes made in this file will be lost!
*****************************************************************************/

static const unsigned char qt_resource_data[] = {
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 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        378  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\.gitattributes

     文件        649  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\.gitignore

     文件        861  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\.qmake.stash

     文件        276  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\debug\moc_predefs.h

     文件         59  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\debug\moc_predefs.h.cbt

     文件     256512  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\debug\QtMapViewer.exe

     文件       4333  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\GeneratedFiles\Debug\moc_MainWindow.cpp

     文件       4344  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\GeneratedFiles\Debug\moc_OfflineTileLoader.cpp

     文件       4765  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\GeneratedFiles\Debug\moc_OnlineTileLoader.cpp

     文件       4870  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\GeneratedFiles\Debug\moc_TileLoaderManager.cpp

     文件       7126  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\GeneratedFiles\Debug\moc_TileManager.cpp

     文件       6678  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\GeneratedFiles\Debug\moc_TileView.cpp

     文件      24279  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\GeneratedFiles\qrc_ressources.cpp

     文件       1008  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\MapViewer.pro

     文件   48431104  2018-06-06 08:56  QtMapViewer_With_QGraphicsView\MapViewer.sdf

     文件        939  2018-06-06 08:56  QtMapViewer_With_QGraphicsView\MapViewer.sln

    ..A..H.     20480  2018-06-06 08:56  QtMapViewer_With_QGraphicsView\MapViewer.v12.suo

     文件      18463  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\MapViewer.vcxproj

     文件       5151  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\MapViewer.vcxproj.filters

     文件        688  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\MapViewer.vcxproj.user

     文件         67  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\README.md

     文件         61  2018-06-06 08:53  QtMapViewer_With_QGraphicsView\release\moc_predefs.h.cbt

     文件         45  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\ressources\appsettings.ini

     文件      30564  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\ressources\dark_stylesheet.qss

     文件        195  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\ressources\ressources.qrc

     文件        523  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\src\DownloadTileRequest.cpp

     文件        448  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\src\DownloadTileRequest.h

     文件        180  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\src\main.cpp

     文件       2495  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\src\MainWindow.cpp

     文件        776  2015-12-14 01:03  QtMapViewer_With_QGraphicsView\src\MainWindow.h

............此处省略33个文件信息