805 lines
27 KiB
Plaintext
805 lines
27 KiB
Plaintext
;**************************************************************
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; Program: OSM (OpenStreetMap Module)
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; Author: Thyphoon And Djes
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; Date: Mai 17, 2016
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; License: Free, unrestricted, credit appreciated
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; but not required.
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; Note: Please share improvement !
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; Thanks: Progi1984,
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;**************************************************************
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CompilerIf #PB_Compiler_Thread = #False
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MessageRequester("Warning !!","You must enable ThreadSafe support in compiler options",#PB_MessageRequester_Ok )
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End
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CompilerEndIf
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EnableExplicit
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InitNetwork()
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UsePNGImageDecoder()
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UsePNGImageEncoder()
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DeclareModule OSM
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Declare InitOSM()
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Declare OSMGadget(Gadget.i, X.i, Y.i, Width.i, Height.i)
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Declare Event(Event.l)
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Declare SetLocation(latitude.d, longitude.d, zoom = 15)
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Declare DrawingThread(Null)
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Declare SetZoom(Zoom.i, mode.i = #PB_Relative)
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Declare LoadGpxFile(file.s);
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EndDeclareModule
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Module OSM
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EnableExplicit
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Structure Location
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Longitude.d
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Latitude.d
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EndStructure
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;- Tile Structure
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Structure Tile
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x.d
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y.d
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OSMTileX.i
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OSMTileY.i
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OSMZoom.i
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nImage.i
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GetImageThread.i
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EndStructure
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Structure DrawingParameters
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x.d
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y.d
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OSMTileX.i
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OSMTileY.i
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OSMZoom.i
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DeltaX.i
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DeltaY.i
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PassNb.i
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EndStructure
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Structure TileThread
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GetImageThread.i
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*Tile.Tile
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EndStructure
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Structure Pixel
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x.i
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y.i
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EndStructure
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Structure ImgMemCach
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nImage.i
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Zoom.i
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XTile.i
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YTile.i
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Usage.i
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EndStructure
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Structure TileMemCach
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List Image.ImgMemCach()
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Mutex.i
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Semaphore.i
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EndStructure
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;-OSM Structure
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Structure OSM
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Gadget.i ; Canvas Gadget Id
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TargetLocation.Location ; Latitude and Longitude from focus point
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*Drawing.DrawingParameters ; Focus Tile coord
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Position.Pixel ; Actual focus Point coords in pixels
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MoveStartingPoint.Pixel ; Start mouse position coords when dragging the map
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ServerURL.s ; Web URL ex: http://tile.openstreetmap.org/
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ZoomMin.i ; Min Zoom supported by server
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ZoomMax.i ; Max Zoom supported by server
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Zoom.i ; Current zoom
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TileSize.i ; Tile size downloaded on the server ex : 256
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HDDCachePath.S ; Path where to load and save tiles downloaded from server
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MemCache.TileMemCach ; Image in memory cache
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List MapImageIndex.ImgMemCach() ; Index from MemCache\Image() to construct map
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DrawingThreadMutex.i ;Only one main drawing thread
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EmergencyQuit.i
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Dirty.i ;To signal that drawing need a refresh
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LoadingMutex.i
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DrawingMutex.i
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;CurlMutex.i ;seems that I can't thread curl ! :(((((
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List TilesThreads.TileThread()
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MapImageMutex.i ; Mutex to lock
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List track.Location() ;to display a GPX track
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EndStructure
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Global OSM.OSM, Null.i
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;- *** CURL specific ***
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Global *ReceiveHTTPToMemoryBuffer, ReceiveHTTPToMemoryBufferPtr.i, ReceivedData.s
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IncludeFile "libcurl.pbi" ; https://github.com/deseven/pbsamples/tree/master/crossplatform/libcurl
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ProcedureC ReceiveHTTPWriteToMemoryFunction(*ptr, Size.i, NMemB.i, *Stream)
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Protected SizeProper.i = Size & 255
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Protected NMemBProper.i = NMemB
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If *ReceiveHTTPToMemoryBuffer = 0
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*ReceiveHTTPToMemoryBuffer = AllocateMemory(SizeProper * NMemBProper)
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If *ReceiveHTTPToMemoryBuffer = 0
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Debug "Problem allocating memory"
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End
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EndIf
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Else
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*ReceiveHTTPToMemoryBuffer = ReAllocateMemory(*ReceiveHTTPToMemoryBuffer, MemorySize(*ReceiveHTTPToMemoryBuffer) + SizeProper * NMemBProper)
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If *ReceiveHTTPToMemoryBuffer = 0
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Debug "Problem reallocating memory"
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End
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EndIf
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EndIf
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CopyMemory(*ptr, *ReceiveHTTPToMemoryBuffer + ReceiveHTTPToMemoryBufferPtr, SizeProper * NMemBProper)
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ReceiveHTTPToMemoryBufferPtr + SizeProper * NMemBProper
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ProcedureReturn SizeProper * NMemBProper
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EndProcedure
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Procedure.i CurlReceiveHTTPToMemory(URL$, ProxyURL$="", ProxyPort$="", ProxyUser$="", ProxyPassword$="")
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Protected *Buffer, curl.i, Timeout.i, res.i
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;Debug "ReceiveHTTPToMemory" + URL$ + ProxyURL$ + ProxyPort$ + ProxyUser$ + ProxyPassword$
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If Len(URL$)
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curl = curl_easy_init()
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If curl
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Timeout = 3
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curl_easy_setopt(curl, #CURLOPT_URL, str2curl(URL$))
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curl_easy_setopt(curl, #CURLOPT_SSL_VERIFYPEER, 0)
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curl_easy_setopt(curl, #CURLOPT_SSL_VERIFYHOST, 0)
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curl_easy_setopt(curl, #CURLOPT_HEADER, 0)
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curl_easy_setopt(curl, #CURLOPT_TIMEOUT, Timeout)
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If Len(ProxyURL$)
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;curl_easy_setopt(curl, #CURLOPT_HTTPPROXYTUNNEL, #True)
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If Len(ProxyPort$)
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ProxyURL$ + ":" + ProxyPort$
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EndIf
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Debug ProxyURL$
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curl_easy_setopt(curl, #CURLOPT_PROXY, str2curl(ProxyURL$))
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If Len(ProxyUser$)
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If Len(ProxyPassword$)
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ProxyUser$ + ":" + ProxyPassword$
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EndIf
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;Debug ProxyUser$
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curl_easy_setopt(curl, #CURLOPT_PROXYUSERPWD, str2curl(ProxyUser$))
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EndIf
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EndIf
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curl_easy_setopt(curl, #CURLOPT_WRITEFUNCTION, @ReceiveHTTPWriteToMemoryFunction())
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res = curl_easy_perform(curl)
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If res = #CURLE_OK
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*Buffer = AllocateMemory(ReceiveHTTPToMemoryBufferPtr)
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If *Buffer
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CopyMemory(*ReceiveHTTPToMemoryBuffer, *Buffer, ReceiveHTTPToMemoryBufferPtr)
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FreeMemory(*ReceiveHTTPToMemoryBuffer)
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*ReceiveHTTPToMemoryBuffer = #Null
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ReceiveHTTPToMemoryBufferPtr = 0
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Else
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Debug "Problem allocating buffer"
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EndIf
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;curl_easy_cleanup(curl) ;Was its original place but moved below as it seems more logical to me.
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Else
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Debug "CURL NOT OK"
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EndIf
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curl_easy_cleanup(curl)
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Else
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Debug "Can't Init CURL"
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EndIf
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EndIf
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Debug "Curl Buffer : " + Str(*Buffer)
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ProcedureReturn *Buffer
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EndProcedure
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;- ***
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Procedure InitOSM()
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Protected Result.i
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OSM\HDDCachePath = GetTemporaryDirectory()
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OSM\ServerURL = "http://tile.openstreetmap.org/"
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OSM\ZoomMin = 0
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OSM\ZoomMax = 18
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OSM\MoveStartingPoint\x = - 1
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OSM\TileSize = 256
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OSM\MemCache\Mutex = CreateMutex()
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OSM\LoadingMutex = CreateMutex()
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OSM\DrawingMutex = CreateMutex()
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;OSM\CurlMutex = CreateMutex()
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OSM\DrawingThreadMutex = CreateMutex()
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OSM\EmergencyQuit = #False
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OSM\Dirty = #False
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;-*** PROXY
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Global Proxy = #True
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;- => Use this to customise your preferences
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; Result = CreatePreferences(GetHomeDirectory() + "OSM.prefs")
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; If Proxy
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; PreferenceGroup("PROXY")
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; WritePreferenceString("ProxyURL", "myproxy.fr")
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; WritePreferenceString("ProxyPort", "myproxyport")
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; WritePreferenceString("ProxyUser", "myproxyname")
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; EndIf
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; If Result
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; ClosePreferences()
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; EndIf
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Result = OpenPreferences(GetHomeDirectory() + "OSM.prefs")
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If Proxy
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PreferenceGroup("PROXY")
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Global ProxyURL$ = ReadPreferenceString("ProxyURL", "") ;InputRequester("ProxyServer", "Do you use a Proxy Server? Then enter the full url:", "")
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Global ProxyPort$ = ReadPreferenceString("ProxyPort", "") ;InputRequester("ProxyPort" , "Do you use a specific port? Then enter it", "")
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Global ProxyUser$ = ReadPreferenceString("ProxyUser", "") ;InputRequester("ProxyUser" , "Do you use a user name? Then enter it", "")
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Global ProxyPassword$ = InputRequester("ProxyPass" , "Do you use a password ? Then enter it", "")
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EndIf
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If Result
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ClosePreferences()
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EndIf
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curl_global_init(#CURL_GLOBAL_ALL);
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EndProcedure
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;- **
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Procedure OSMGadget(Gadget.i, X.i, Y.i, Width.i, Height.i)
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If Gadget = #PB_Any
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OSM\Gadget = CanvasGadget(OSM\Gadget, X, Y, Width, Height)
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Else
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OSM\Gadget = Gadget
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CanvasGadget(OSM\Gadget, X, Y, Width, Height)
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EndIf
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EndProcedure
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Procedure LatLon2XY(*Location.Location, *Tile.Tile)
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Protected n.d = Pow(2.0, OSM\Zoom)
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Protected LatRad.d = Radian(*Location\Latitude)
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*Tile\x = n * ( (*Location\Longitude + 180.0) / 360.0)
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*Tile\y = n * ( 1.0 - Log(Tan(LatRad) + 1.0/Cos(LatRad)) / #PI ) / 2.0
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Debug "Latitude : " + StrD(*Location\Latitude) + " ; Longitude : " + StrD(*Location\Longitude)
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Debug "Tile X : " + Str(*Tile\x) + " ; Tile Y : " + Str(*Tile\y)
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EndProcedure
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Procedure XY2LatLon(*Tile.Tile, *Location.Location)
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Protected n.d = Pow(2.0, OSM\Zoom)
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Protected LatitudeRad.d
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*Location\Longitude = *Tile\x / n * 360.0 - 180.0
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LatitudeRad = ATan(SinH(#PI * (1.0 - 2.0 * *Tile\y / n)))
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*Location\Latitude = Degree(LatitudeRad)
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EndProcedure
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Procedure getPixelCoorfromLocation(*Location.Location, *Pixel.Pixel) ; TODO to Optimize
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Protected mapWidth.l = Pow(2,OSM\Zoom+8)
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Protected mapHeight.l = Pow(2,OSM\Zoom+8)
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Protected x1.l,y1.l
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Protected deltaX = OSM\Position\x - Int(OSM\TargetTile\x) * OSM\TileSize ;Get the position into the tile
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Protected deltaY = OSM\Position\y - Int(OSM\TargetTile\y) * OSM\TileSize
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; get x value
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x1 = (*Location\Longitude+180)*(mapWidth/360)
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; convert from degrees To radians
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Protected latRad.d = *Location\Latitude*#PI/180;
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Protected mercN.d = Log(Tan((#PI/4)+(latRad/2)));
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y1 = (mapHeight/2)-(mapWidth*mercN/(2*#PI)) ;
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Protected x2.l, y2.l
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; get x value
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x2 = (OSM\TargetLocation\Longitude+180)*(mapWidth/360)
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; convert from degrees To radians
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latRad = OSM\TargetLocation\Latitude*#PI/180;
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; get y value
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mercN = Log(Tan((#PI/4)+(latRad/2))) ;
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y2 = (mapHeight/2)-(mapWidth*mercN/(2*#PI));
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*Pixel\x=GadgetWidth(OSM\Gadget)/2 - (x2-x1) + deltaX
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*Pixel\y=GadgetHeight(OSM\Gadget)/2 - (y2-y1) + deltaY
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EndProcedure
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Procedure LoadGpxFile(file.s)
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If LoadXML(0, file.s)
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Protected Message.s
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If XMLStatus(0) <> #PB_XML_Success
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Message = "Error in the XML file:" + Chr(13)
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Message + "Message: " + XMLError(0) + Chr(13)
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Message + "Line: " + Str(XMLErrorLine(0)) + " Character: " + Str(XMLErrorPosition(0))
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MessageRequester("Error", Message)
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EndIf
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Protected *MainNode,*subNode,*child,child.l
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*MainNode=MainXMLNode(0)
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*MainNode=XMLNodeFromPath(*MainNode,"/gpx/trk/trkseg")
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ClearList(OSM\track())
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For child = 1 To XMLChildCount(*MainNode)
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*child = ChildXMLNode(*MainNode, child)
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AddElement(OSM\track())
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If ExamineXMLAttributes(*child)
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While NextXMLAttribute(*child)
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Select XMLAttributeName(*child)
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Case "lat"
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OSM\track()\Latitude=ValD(XMLAttributeValue(*child))
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Case "lon"
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OSM\track()\Longitude=ValD(XMLAttributeValue(*child))
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EndSelect
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Wend
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EndIf
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Next
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EndIf
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EndProcedure
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Procedure.i GetTileFromMem(Zoom.i, XTile.i, YTile.i)
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Protected nImage.i = -1
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Debug "Check if we have this image in memory"
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LockMutex(OSM\LoadingMutex)
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LockMutex(OSM\MemCache\Mutex)
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ForEach OSM\MemCache\Image()
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If Zoom = OSM\MemCache\Image()\Zoom And OSM\MemCache\Image()\xTile = XTile And OSM\MemCache\Image()\yTile = YTile
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nImage = OSM\MemCache\Image()\nImage
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Debug "Load from MEM Tile X : " + Str(XTile) + " ; Tile Y : " + Str(YTile) + " nImage:" + Str(nImage)
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Break;
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;ElseIf Zoom<>OSM\MemCache\Image()\Zoom
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; DeleteElement(OSM\MemCache\Image())
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EndIf
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Next
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UnlockMutex(OSM\MemCache\Mutex)
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UnlockMutex(OSM\LoadingMutex)
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ProcedureReturn nImage
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EndProcedure
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Procedure.i GetTileFromHDD(Zoom.i, XTile.i, YTile.i)
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Protected nImage.i
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Protected CacheFile.s = "OSM_" + Str(Zoom) + "_" + Str(XTile) + "_" + Str(YTile) + ".png"
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Debug "Check if we have this image on HDD"
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If FileSize(OSM\HDDCachePath + cacheFile) > 0
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nImage = LoadImage(#PB_Any, OSM\HDDCachePath + CacheFile)
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If IsImage(nImage)
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Debug "Load from HDD Tile " + CacheFile
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ProcedureReturn nImage
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EndIf
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EndIf
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ProcedureReturn -1
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EndProcedure
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Procedure.i GetTileFromWeb(Zoom.i, XTile.i, YTile.i)
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Protected *Buffer
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Protected nImage.i = -1
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Protected TileURL.s = OSM\ServerURL + Str(Zoom) + "/" + Str(XTile) + "/" + Str(YTile) + ".png"
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; Test if in cache else download it
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Protected CacheFile.s = "OSM_" + Str(Zoom) + "_" + Str(XTile) + "_" + Str(YTile) + ".png"
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Debug "Check if we have this image on Web"
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If Proxy
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;LockMutex(OSM\CurlMutex) ;Seems no more necessary
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*Buffer = CurlReceiveHTTPToMemory(TileURL, ProxyURL$, ProxyPort$, ProxyUser$, ProxyPassword$)
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;UnlockMutex(OSM\CurlMutex)
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Else
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*Buffer = ReceiveHTTPMemory(TileURL) ;TODO to thread by using #PB_HTTP_Asynchronous
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EndIf
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Debug "Image buffer " + Str(*Buffer)
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If *Buffer
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LockMutex(OSM\LoadingMutex)
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nImage = CatchImage(#PB_Any, *Buffer, MemorySize(*Buffer))
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UnlockMutex(OSM\LoadingMutex)
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If IsImage(nImage)
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Debug "Load from web " + TileURL + " as Tile nb " + nImage
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LockMutex(OSM\LoadingMutex)
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SaveImage(nImage, OSM\HDDCachePath + CacheFile, #PB_ImagePlugin_PNG)
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UnlockMutex(OSM\LoadingMutex)
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FreeMemory(*Buffer)
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Else
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Debug "Can't catch image " + TileURL
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nImage = -1
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;ShowMemoryViewer(*Buffer, MemorySize(*Buffer))
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EndIf
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Else
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Debug "Problem loading from web " + TileURL
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EndIf
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ProcedureReturn nImage
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EndProcedure
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Procedure GetImageThread(*Tile.Tile)
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Protected *CacheImagePtr
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Protected nImage.i = -1
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LockMutex(OSM\LoadingMutex)
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If OSM\EmergencyQuit = 0
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LockMutex(OSM\MemCache\Mutex)
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*CacheImagePtr = AddElement(OSM\MemCache\Image())
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Debug " CacheImagePtr : " + Str(*CacheImagePtr)
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OSM\MemCache\Image()\xTile = *Tile\OSMTileX
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OSM\MemCache\Image()\yTile = *Tile\OSMTileY
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OSM\MemCache\Image()\Zoom = *Tile\OSMZoom
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OSM\MemCache\Image()\nImage = -1 ;By now, this tile is in "loading" state, for thread synchro
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UnlockMutex(OSM\MemCache\Mutex)
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nImage = GetTileFromHDD(*Tile\OSMZoom, *Tile\OSMTileX, *Tile\OSMTileY)
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If nImage = -1 And OSM\EmergencyQuit = 0
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nImage = GetTileFromWeb(*Tile\OSMZoom, *Tile\OSMTileX, *Tile\OSMTileY)
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EndIf
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LockMutex(OSM\MemCache\Mutex)
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If nImage <> -1 And OSM\EmergencyQuit = 0
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Debug "Adding tile " + Str(nImage) + " to mem cache"
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;AddTileToMemCache(Zoom, XTile, YTile, nImage)
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OSM\MemCache\Image()\nImage = nImage
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Debug "Image nb " + Str(nImage) + " successfully added to mem cache"
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Else
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Debug "Error GetImageThread procedure, tile not loaded - Zoom:" + Str(*Tile\OSMZoom) + " X:" + Str(*Tile\OSMTileX) + " Y:" + Str(*Tile\OSMTileY)
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DeleteElement(OSM\MemCache\Image())
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nImage = -1
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EndIf
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UnlockMutex(OSM\MemCache\Mutex)
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EndIf
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*Tile\nImage = nImage
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UnlockMutex(OSM\LoadingMutex)
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EndProcedure
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Procedure DrawTile(*Tile.Tile)
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Protected x = *Tile\x - OSM\DeltaX
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Protected y = *Tile\y - OSM\DeltaY
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Debug " Drawing tile nb " + " X : " + Str(x) + " Y : " + Str(y)
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LockMutex(OSM\DrawingMutex)
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If OSM\EmergencyQuit = 0 ;Quit before drawing
|
|
StartDrawing(CanvasOutput(OSM\Gadget))
|
|
If IsImage(*Tile\nImage)
|
|
DrawImage(ImageID(*Tile\nImage), x, y)
|
|
DrawText( x, y, Str(x) + ", " + Str(y))
|
|
Else
|
|
Debug "Image missing"
|
|
OSM\Dirty = #True ;Signal that this image is missing so we should have to redraw
|
|
EndIf
|
|
StopDrawing()
|
|
EndIf
|
|
UnlockMutex(OSM\DrawingMutex)
|
|
|
|
EndProcedure
|
|
|
|
Procedure DrawTiles()
|
|
|
|
Protected x.i, y.i
|
|
|
|
Protected tx = Int(OSM\TargetTile\x) ;Don't forget the Int() !
|
|
Protected ty = Int(OSM\TargetTile\y)
|
|
|
|
Protected CenterX = GadgetWidth(OSM\Gadget) / 2
|
|
Protected CenterY = GadgetHeight(OSM\Gadget) / 2
|
|
|
|
Protected nx = CenterX / OSM\TileSize ;How many tiles around the point
|
|
Protected ny = CenterY / OSM\TileSize
|
|
|
|
Debug "Drawing tiles"
|
|
|
|
For y = - ny To ny
|
|
For x = - nx To nx
|
|
|
|
If OSM\EmergencyQuit
|
|
Break 2
|
|
EndIf
|
|
|
|
Protected *NewTile.Tile = AllocateMemory(SizeOf(Tile))
|
|
If *NewTile
|
|
With *NewTile
|
|
|
|
AddElement(OSM\TilesThreads())
|
|
OSM\TilesThreads()\Tile = *NewTile
|
|
\x = CenterX + x * OSM\TileSize
|
|
\y = CenterY + y * OSM\TileSize
|
|
\OSMTileX = tx + x
|
|
\OSMTileY = ty + y
|
|
\OSMZoom = OSM\Zoom
|
|
|
|
;Check if the image exists, if not, load it in the background
|
|
\nImage = GetTileFromMem(\OSMZoom, \OSMTileX, \OSMTileY)
|
|
If \nImage = -1
|
|
\GetImageThread = CreateThread(@GetImageThread(), *NewTile)
|
|
|
|
OSM\TilesThreads()\GetImageThread = \GetImageThread
|
|
EndIf
|
|
Debug " Creating get image thread nb " + Str(\GetImageThread)
|
|
DrawTile(*NewTile)
|
|
|
|
EndWith
|
|
|
|
Else
|
|
Debug" Error, can't create a new tile."
|
|
Break 2
|
|
EndIf
|
|
Next
|
|
Next
|
|
|
|
ForEach OSM\TilesThreads()
|
|
If IsThread(OSM\TilesThreads()\GetImageThread) = 0
|
|
FreeMemory(OSM\TilesThreads()\Tile)
|
|
DeleteElement(OSM\TilesThreads())
|
|
EndIf
|
|
Next
|
|
|
|
EndProcedure
|
|
|
|
Procedure DrawTrack()
|
|
|
|
Protected Pixel.Pixel
|
|
Protected Location.Location
|
|
Protected n.i = 0, x.i, y.i
|
|
|
|
StartDrawing(CanvasOutput(OSM\Gadget))
|
|
ForEach OSM\track()
|
|
n=n+1
|
|
If @OSM\TargetLocation\Latitude<>0 And @OSM\TargetLocation\Longitude<>0
|
|
getPixelCoorfromLocation(@OSM\track(),@Pixel)
|
|
x=Pixel\x
|
|
y=Pixel\y
|
|
If x>0 And y>0 And x<GadgetWidth(OSM\Gadget) And y<GadgetHeight(OSM\Gadget)
|
|
Circle(x,y,2,#Green)
|
|
EndIf
|
|
EndIf
|
|
Next
|
|
StopDrawing()
|
|
|
|
EndProcedure
|
|
|
|
Procedure DrawingThread(*Drawing.DrawingParameters)
|
|
|
|
Debug "--------- Main drawing thread ------------"
|
|
OSM\Dirty = #False
|
|
|
|
LockMutex(OSM\DrawingThreadMutex) ; Only one main drawing thread at once
|
|
|
|
Protected CenterX = GadgetWidth(OSM\Gadget) / 2
|
|
Protected CenterY = GadgetHeight(OSM\Gadget) / 2
|
|
|
|
DrawTiles()
|
|
|
|
LockMutex(OSM\DrawingMutex)
|
|
StartDrawing(CanvasOutput(OSM\Gadget))
|
|
;DrawTrack()
|
|
Circle(CenterX, CenterY, 5, #Red)
|
|
StopDrawing()
|
|
UnlockMutex(OSM\DrawingMutex)
|
|
|
|
UnlockMutex(OSM\DrawingThreadMutex)
|
|
|
|
;- Redraw
|
|
;If something was not correctly drawn, redraw after a while
|
|
If OSM\Dirty
|
|
Debug "Something was dirty ! We try again to redraw"
|
|
;Delay(250)
|
|
|
|
*Drawing\PassNb + 1
|
|
CreateThread(@DrawingThread(), *Drawing)
|
|
EndIf
|
|
|
|
*Drawing\PassNb - 1
|
|
If *Drawing\PassNb = 0
|
|
FreeMemory(*TargetTile)
|
|
EndIf
|
|
|
|
EndProcedure
|
|
|
|
Procedure SetLocation(latitude.d, longitude.d, zoom = 15)
|
|
|
|
If zoom > OSM\ZoomMax : zoom = OSM\ZoomMax : EndIf
|
|
If zoom < OSM\ZoomMin : zoom = OSM\ZoomMin : EndIf
|
|
OSM\Zoom = zoom
|
|
OSM\TargetLocation\Latitude = latitude
|
|
OSM\TargetLocation\Longitude = longitude
|
|
LatLon2XY(@OSM\TargetLocation, @OSM\TargetTile)
|
|
OSM\Position\x = OSM\TargetTile\x * OSM\TileSize ;Convert X, Y in tile.decimal into real pixels
|
|
OSM\Position\y = OSM\TargetTile\y * OSM\TileSize
|
|
OSM\DeltaX = OSM\Position\x - Int(OSM\Position\x / OSM\TileSize) * OSM\TileSize
|
|
OSM\DeltaY = OSM\Position\y - Int(OSM\Position\y / OSM\TileSize) * OSM\TileSize
|
|
CreateThread(@DrawingThread(), Null)
|
|
|
|
EndProcedure
|
|
|
|
Procedure SetZoom(Zoom.i, mode.i = #PB_Relative)
|
|
|
|
Select mode
|
|
Case #PB_Relative
|
|
OSM\Zoom = OSM\Zoom + zoom
|
|
Case #PB_Absolute
|
|
OSM\Zoom = zoom
|
|
EndSelect
|
|
|
|
If OSM\Zoom > OSM\ZoomMax : OSM\Zoom = OSM\ZoomMax : EndIf
|
|
If OSM\Zoom < OSM\ZoomMin : OSM\Zoom = OSM\ZoomMin : EndIf
|
|
LatLon2XY(@OSM\TargetLocation, @OSM\TargetTile)
|
|
OSM\Position\x = OSM\TargetTile\x * OSM\TileSize ;Convert X, Y in tile.decimal into real pixels
|
|
OSM\Position\y = OSM\TargetTile\y * OSM\TileSize
|
|
OSM\DeltaX = OSM\Position\x - Int(OSM\Position\x / OSM\TileSize) * OSM\TileSize
|
|
OSM\DeltaY = OSM\Position\y - Int(OSM\Position\y / OSM\TileSize) * OSM\TileSize
|
|
CreateThread(@DrawingThread(), Null)
|
|
|
|
EndProcedure
|
|
|
|
Procedure Event(Event.l)
|
|
|
|
Protected Gadget.i
|
|
Protected MouseX.i, MouseY.i
|
|
Protected OldX.i, OldY.i
|
|
Protected TileX.d, TileY.d
|
|
Protected *Drawing.DrawingParameters
|
|
|
|
If IsGadget(OSM\Gadget) And GadgetType(OSM\Gadget) = #PB_GadgetType_Canvas
|
|
Select Event
|
|
Case #PB_Event_Gadget ;{
|
|
Gadget = EventGadget()
|
|
Select Gadget
|
|
Case OSM\Gadget
|
|
Select EventType()
|
|
Case #PB_EventType_LeftButtonDown
|
|
;Mem cursor Coord
|
|
OSM\MoveStartingPoint\x = GetGadgetAttribute(OSM\Gadget, #PB_Canvas_MouseX)
|
|
OSM\MoveStartingPoint\y = GetGadgetAttribute(OSM\Gadget, #PB_Canvas_MouseY)
|
|
Case #PB_EventType_MouseMove
|
|
If OSM\MoveStartingPoint\x <> - 1
|
|
;Need a refresh
|
|
;OSM\EmergencyQuit = #True
|
|
MouseX = GetGadgetAttribute(OSM\Gadget, #PB_Canvas_MouseX) - OSM\MoveStartingPoint\x
|
|
MouseY = GetGadgetAttribute(OSM\Gadget, #PB_Canvas_MouseY) - OSM\MoveStartingPoint\y
|
|
;Old move values
|
|
OldX = OSM\Position\x
|
|
OldY = OSM\Position\y
|
|
;New move values
|
|
OSM\Position\x - MouseX
|
|
OSM\Position\y - MouseY
|
|
;OSM tile position in tile.decimal
|
|
TileX = OSM\Position\x / OSM\TileSize
|
|
TileY = OSM\Position\y / OSM\TileSize
|
|
*Drawing = AllocateMemory(SizeOf(*DrawingParameters))
|
|
;Pixel shift
|
|
*Drawing\DeltaX = OSM\Position\x - Int(TileX) * OSM\TileSize
|
|
*Drawing\DeltaY = OSM\Position\y - Int(TileY) * OSM\TileSize
|
|
;Moved to a new tile ?
|
|
If (Int(OSM\Position\x / OSM\TileSize)) <> (Int(OldX / OSM\TileSize)) Or (Int(OSM\Position\y / OSM\TileSize)) <> (Int(OldY / OSM\TileSize))
|
|
Debug "--- New tile"
|
|
*TargetTile\x = TileX
|
|
*TargetTile\y = TileY
|
|
Debug "OSM\Position\x " + Str(OSM\Position\x) + " ; OSM\Position\y " + Str(OSM\Position\y)
|
|
XY2LatLon(*Drawing, @OSM\TargetLocation)
|
|
Debug "OSM\TargetTile\x " + StrD(*Drawing\x) + " ; OSM\TargetTile\y " + StrD(*Drawing\y)
|
|
EndIf
|
|
OSM\EmergencyQuit = #False
|
|
*Drawing\PassNb = 1
|
|
CreateThread(@DrawingThread(), *Drawing)
|
|
OSM\MoveStartingPoint\x = GetGadgetAttribute(OSM\Gadget, #PB_Canvas_MouseX)
|
|
OSM\MoveStartingPoint\y = GetGadgetAttribute(OSM\Gadget, #PB_Canvas_MouseY)
|
|
EndIf
|
|
Case #PB_EventType_LeftButtonUp
|
|
OSM\MoveStartingPoint\x = - 1
|
|
OSM\TargetTile\x = OSM\Position\x / OSM\TileSize
|
|
OSM\TargetTile\y = OSM\Position\y / OSM\TileSize
|
|
Debug "OSM\Position\x " + Str(OSM\Position\x) + " ; OSM\Position\y " + Str(OSM\Position\y)
|
|
XY2LatLon(@OSM\TargetTile, @OSM\TargetLocation)
|
|
;Draw()
|
|
Debug "OSM\TargetTile\x " + StrD(OSM\TargetTile\x) + " ; OSM\TargetTile\y " + StrD(OSM\TargetTile\y)
|
|
;SetGadgetText(#String_1, StrD(OSM\TargetLocation\Latitude))
|
|
;SetGadgetText(#String_0, StrD(OSM\TargetLocation\Longitude))
|
|
EndSelect
|
|
EndSelect
|
|
EndSelect
|
|
Else
|
|
MessageRequester("Module OSM", "You must use OSMGadget before", #PB_MessageRequester_Ok )
|
|
End
|
|
EndIf
|
|
|
|
EndProcedure
|
|
EndModule
|
|
|
|
Enumeration
|
|
#Window_0
|
|
#Map
|
|
#Button_0
|
|
#Button_1
|
|
#Button_2
|
|
#Button_3
|
|
#Button_4
|
|
#Button_5
|
|
#Combo_0
|
|
#Text_0
|
|
#Text_1
|
|
#Text_2
|
|
#Text_3
|
|
#Text_4
|
|
#String_0
|
|
#String_1
|
|
EndEnumeration
|
|
|
|
;- Main
|
|
If OpenWindow(#Window_0, 260, 225, 700, 571, "OpenStreetMap", #PB_Window_SystemMenu | #PB_Window_MinimizeGadget | #PB_Window_TitleBar | #PB_Window_ScreenCentered )
|
|
|
|
OSM::InitOSM()
|
|
LoadFont(0, "Wingdings", 12)
|
|
LoadFont(1, "Arial", 12, #PB_Font_Bold)
|
|
|
|
OSM::OSMGadget(#Map, 10, 10, 512, 512)
|
|
|
|
TextGadget(#Text_1, 530, 50, 60, 15, "Movements : ")
|
|
ButtonGadget(#Button_0, 550, 100, 30, 30, Chr($E7)) : SetGadgetFont(#Button_0, FontID(0))
|
|
ButtonGadget(#Button_1, 610, 100, 30, 30, Chr($E8)) : SetGadgetFont(#Button_1, FontID(0))
|
|
ButtonGadget(#Button_2, 580, 070, 30, 30, Chr($E9)) : SetGadgetFont(#Button_2, FontID(0))
|
|
ButtonGadget(#Button_3, 580, 130, 30, 30, Chr($EA)) : SetGadgetFont(#Button_3, FontID(0))
|
|
TextGadget(#Text_2, 530, 160, 60, 15, "Zoom : ")
|
|
ButtonGadget(#Button_4, 550, 180, 50, 30, " + ") : SetGadgetFont(#Button_4, FontID(1))
|
|
ButtonGadget(#Button_5, 600, 180, 50, 30, " - ") : SetGadgetFont(#Button_5, FontID(1))
|
|
TextGadget(#Text_3, 530, 230, 60, 15, "Latitude : ")
|
|
StringGadget(#String_0, 600, 230, 90, 20, "")
|
|
TextGadget(#Text_4, 530, 250, 60, 15, "Longitude : ")
|
|
StringGadget(#String_1, 600, 250, 90, 20, "")
|
|
|
|
Define Event.i, Gadget.i, Quit.b = #False
|
|
Define pfValue.d
|
|
OSM::SetLocation(49.04599, 2.03347, 17)
|
|
;OSM::SetLocation(49.0361165, 2.0456982)
|
|
|
|
Repeat
|
|
Event = WaitWindowEvent()
|
|
|
|
OSM::Event(Event)
|
|
Select Event
|
|
Case #PB_Event_CloseWindow : Quit = 1
|
|
Case #PB_Event_Gadget ;{
|
|
Gadget = EventGadget()
|
|
Select Gadget
|
|
Case #Button_4
|
|
OSM::SetZoom(1)
|
|
Case #Button_5
|
|
OSM::SetZoom( - 1)
|
|
EndSelect
|
|
EndSelect
|
|
Until Quit = #True
|
|
EndIf
|