transparency
This commit is contained in:
117
PBMap.pb
117
PBMap.pb
@@ -26,8 +26,8 @@ DeclareModule PBMap
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#Red = 255
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;-Show debug infos
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Global Verbose = 0
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Global MyDebugLevel = 5
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Global Verbose = 1
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Global MyDebugLevel = 4
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#SCALE_NAUTICAL = 1
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#SCALE_KM = 0
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@@ -51,6 +51,7 @@ DeclareModule PBMap
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Declare SaveOptions(PreferencesFile.s = "PBMap.prefs")
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Declare.i AddMapServerLayer(LayerName.s, Order.i, ServerURL.s = "http://tile.openstreetmap.org/", TileSize = 256, ZoomMin = 0, ZoomMax = 18)
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Declare DeleteLayer(Nb.i)
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Declare BindMapGadget(Gadget.i)
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Declare MapGadget(Gadget.i, X.i, Y.i, Width.i, Height.i)
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Declare SetLocation(latitude.d, longitude.d, Zoom = -1, mode.i = #PB_Absolute)
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Declare Drawing()
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@@ -98,16 +99,12 @@ Module PBMap
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;- Tile Structure
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Structure Tile
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Position.Coordinates
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PBMapTileX.i
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PBMapTileY.i
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PBMapZoom.i
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nImage.i
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key.s
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URL.s
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CacheFile.s
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GetImageThread.i
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RetryNb.i
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ServerURL.s
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EndStructure
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Structure BoundingBox
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@@ -135,6 +132,7 @@ Module PBMap
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nImage.i
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*Tile.Tile
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TimeStackPosition.i
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Alpha.i
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EndStructure
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Structure ImgMemCachKey
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@@ -890,9 +888,8 @@ Module PBMap
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Procedure GetImageThread(*Tile.Tile)
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Protected nImage.i = -1
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Protected TileURL.s = *Tile\ServerURL + Str(*Tile\PBMapZoom) + "/" + Str(*Tile\PBMapTileX) + "/" + Str(*Tile\PBMapTileY) + ".png"
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Repeat
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nImage = GetTileFromWeb(TileURL, *Tile\CacheFile)
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nImage = GetTileFromWeb(*Tile\URL, *Tile\CacheFile)
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If nImage <> -1
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MyDebug("Image key : " + *Tile\key + " web image loaded", 3)
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*Tile\RetryNb = 0
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@@ -908,21 +905,22 @@ Module PBMap
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EndProcedure
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;-***
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Procedure.i GetTile(key.s, CacheFile.s, px.i, py.i, tilex.i, tiley.i, ServerURL.s)
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Procedure.i GetTile(key.s, URL.s, CacheFile.s)
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; Try to find the tile in memory cache. If not found, add it, try To load it from the
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; HDD, or launch a loading thread, and try again on the next drawing loop.
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Protected timg = -1
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If FindMapElement(PBMap\MemCache\Images(), key)
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Protected img.i = -1
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Protected *timg.ImgMemCach = FindMapElement(PBMap\MemCache\Images(), key)
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If *timg
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MyDebug("Key : " + key + " found in memory cache!", 3)
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timg = PBMap\MemCache\Images()\nImage
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If timg <> -1
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MyDebug("Image : " + timg + " found in memory cache!", 3)
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img = *timg\nImage
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If img <> -1
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MyDebug("Image : " + img + " found in memory cache!", 3)
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;*** Cache management
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; Move the newly used element to the last position of the time stack
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SelectElement(PBMap\MemCache\ImagesTimeStack(), PBMap\MemCache\Images()\TimeStackPosition)
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SelectElement(PBMap\MemCache\ImagesTimeStack(), *timg\TimeStackPosition)
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MoveElement(PBMap\MemCache\ImagesTimeStack(), #PB_List_Last)
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;***
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ProcedureReturn timg
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ProcedureReturn *timg
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EndIf
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Else
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AddMapElement(PBMap\MemCache\Images(), key)
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@@ -949,31 +947,30 @@ Module PBMap
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PBMap\MemCache\ImagesTimeStack()\MapKey = MapKey(PBMap\MemCache\Images())
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;***
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MyDebug("Key : " + key + " added in memory cache!", 3)
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PBMap\MemCache\Images()\nImage = -1
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*timg = PBMap\MemCache\Images()
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*timg\nImage = -1
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EndIf
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If PBMap\MemCache\Images()\Tile = 0 ; Check if a loading thread is not running
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If *timg\Tile = 0 ; Check if a loading thread is not running
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MyDebug("Trying to load from HDD " + CacheFile, 3)
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timg = GetTileFromHDD(CacheFile.s)
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If timg <> -1
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img = GetTileFromHDD(CacheFile.s)
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If img <> -1
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MyDebug("Key : " + key + " found on HDD", 3)
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PBMap\MemCache\Images()\nImage = timg
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ProcedureReturn timg
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*timg\nImage = img
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*timg\Alpha = 0
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ProcedureReturn *timg
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EndIf
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MyDebug("Key : " + key + " not found on HDD", 3)
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;Launch a new thread
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Protected *NewTile.Tile = AllocateMemory(SizeOf(Tile))
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If *NewTile
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With *NewTile
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PBMap\MemCache\Images()\Tile = *NewTile
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*timg\Tile = *NewTile
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*timg\Alpha = 0
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;*timg\nImage = -1
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;New tile parameters
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\Position\x = px
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\Position\y = py
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\PBMapTileX = tilex
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\PBMapTileY = tiley
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\PBMapZoom = PBMap\Zoom
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\key = key
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\URL = URL
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\CacheFile = CacheFile
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\ServerURL = ServerURL
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\RetryNb = 5
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\nImage = -1
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MyDebug(" Creating get image thread nb " + Str(\GetImageThread) + " to get " + CacheFile, 3)
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@@ -983,16 +980,17 @@ Module PBMap
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MyDebug(" Error, can't create a new tile loading thread", 3)
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EndIf
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EndIf
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ProcedureReturn timg
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ProcedureReturn *timg
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EndProcedure
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Procedure DrawTiles(*Drawing.DrawingParameters, Layer, alpha.i=255)
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Procedure DrawTiles(*Drawing.DrawingParameters, Layer)
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Protected x.i, y.i,kq.q
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Protected tx = Int(*Drawing\TileCoordinates\x) ;Don't forget the Int() !
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Protected ty = Int(*Drawing\TileCoordinates\y)
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Protected nx = *Drawing\CenterX / PBMap\TileSize ;How many tiles around the point
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Protected ny = *Drawing\CenterY / PBMap\TileSize
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Protected px, py, img, tilex,tiley, key.s, CacheFile.s
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Protected px, py, *timg.ImgMemCach, tilex, tiley, key.s
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Protected URL.s, CacheFile.s
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Protected tilemax = 1<<PBMap\Zoom
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SelectElement(PBMap\Layers(), Layer)
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MyDebug("Drawing tiles")
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@@ -1024,19 +1022,26 @@ Module PBMap
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EndIf
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EndIf
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; Tile cache name based on y
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URL = PBMap\Layers()\ServerURL + Str(PBMap\Zoom) + "/" + Str(tilex) + "/" + Str(tiley) + ".png"
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CacheFile = DirName + "\" + Str(tiley) + ".png"
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img = GetTile(key, CacheFile, px, py, tilex, tiley, PBMap\Layers()\ServerURL)
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If img <> -1
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*timg = GetTile(key, URL, CacheFile)
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If *timg\nImage <> -1
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MovePathCursor(px, py)
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DrawVectorImage(ImageID(img), alpha)
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DrawVectorImage(ImageID(*timg\nImage), *timg\Alpha)
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If *timg\Alpha < 224
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*timg\Alpha = (*timg\Alpha + 32) & $FF
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PBMap\Redraw = #True
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Else
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*timg\Alpha = 255
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EndIf
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Else
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MovePathCursor(px, py)
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DrawVectorImage(ImageID(PBMap\ImgLoading), alpha)
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DrawVectorImage(ImageID(PBMap\ImgLoading), 255)
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EndIf
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Else
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;If PBMap\Layers()\Name = ""
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MovePathCursor(px, py)
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DrawVectorImage(ImageID(PBMap\ImgNothing))
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DrawVectorImage(ImageID(PBMap\ImgNothing), 255)
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;EndIf
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EndIf
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If PBMap\Options\ShowDebugInfos
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@@ -1079,7 +1084,7 @@ Module PBMap
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sunit = " Km"
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EndSelect
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VectorFont(FontID(PBMap\Font), 10)
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VectorSourceColor(RGBA(0, 0, 0,alpha))
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VectorSourceColor(RGBA(0, 0, 0, alpha))
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MovePathCursor(x,y)
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DrawVectorText(StrD(Scale,3)+sunit)
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MovePathCursor(x,y+12)
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@@ -1536,6 +1541,8 @@ Module PBMap
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;***
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; Main drawing stuff
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StartVectorDrawing(CanvasVectorOutput(PBMap\Gadget))
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VectorSourceColor(RGBA(150, 150, 150, 255))
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FillVectorOutput()
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;TODO add in layers of tiles ;this way we can cache them as 0 base 1.n layers
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; such as for openseamap tiles which are overlaid. not that efficent from here though.
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ForEach PBMap\Layers()
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@@ -1804,8 +1811,7 @@ Module PBMap
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MyDebug( JSONErrorMessage() + " at position " +
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JSONErrorPosition() + " in line " +
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JSONErrorLine() + " of JSON web Data", 1)
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EndIf
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If JSONArraySize(JSONValue(0)) > 0
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ElseIf JSONArraySize(JSONValue(0)) > 0
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Protected object_val = GetJSONElement(JSONValue(0), 0)
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Protected object_box = GetJSONMember(object_val, "boundingbox")
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Protected bbox.BoundingBox
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@@ -2053,6 +2059,15 @@ Module PBMap
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EndIf
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EndProcedure
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; Could be called directly to attach our map to an existing canvas
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Procedure BindMapGadget(Gadget.i)
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PBMap\Gadget = Gadget
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BindGadgetEvent(PBMap\Gadget, @CanvasEvents())
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AddWindowTimer(PBMap\Window, PBMap\Timer, PBMap\Options\TimerInterval)
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BindEvent(#PB_Event_Timer, @TimerEvents())
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EndProcedure
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; Creates a canvas and attach our map
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Procedure MapGadget(Gadget.i, X.i, Y.i, Width.i, Height.i)
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If Gadget = #PB_Any
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PBMap\Gadget = CanvasGadget(PBMap\Gadget, X, Y, Width, Height, #PB_Canvas_Keyboard) ;#PB_Canvas_Keyboard has to be set for mousewheel to work on windows
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@@ -2060,9 +2075,7 @@ Module PBMap
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PBMap\Gadget = Gadget
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CanvasGadget(PBMap\Gadget, X, Y, Width, Height, #PB_Canvas_Keyboard)
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EndIf
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BindGadgetEvent(PBMap\Gadget, @CanvasEvents())
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AddWindowTimer(PBMap\Window, PBMap\Timer, PBMap\Options\TimerInterval)
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BindEvent(#PB_Event_Timer, @TimerEvents())
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BindMapGadget(PBMap\Gadget)
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EndProcedure
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Procedure InitPBMap(Window)
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@@ -2209,10 +2222,14 @@ CompilerIf #PB_Compiler_IsMainFile
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StringGadget(#StringGeoLocationQuery, 530, 450, 150, 20, "")
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SetActiveGadget(#StringGeoLocationQuery)
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AddKeyboardShortcut(#Window_0, #PB_Shortcut_Return, 1)
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;*** TODO : code to remove when the SetActiveGadget(-1) will be fixed
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CompilerIf #PB_Compiler_OS = #PB_OS_Linux
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Dummy = ButtonGadget(#PB_Any, 0, 0, 1, 1, "Dummy")
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Define Dummy = ButtonGadget(#PB_Any, 0, 0, 1, 1, "Dummy")
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HideGadget(Dummy, 1)
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CompilerElse
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Define Dummy = -1
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CompilerEndIf
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;***
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Define Event.i, Gadget.i, Quit.b = #False
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Define pfValue.d
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@@ -2305,11 +2322,9 @@ CompilerIf #PB_Compiler_IsMainFile
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Case #PB_Event_Menu
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Select EventMenu()
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Case 1
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CompilerIf #PB_Compiler_OS = #PB_OS_Linux
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;*** TODO : code to change when the SetActiveGadget(-1) will be fixed
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SetActiveGadget(Dummy)
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CompilerElse
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SetActiveGadget(-1)
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CompilerEndIf
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;***
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EndSelect
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EndSelect
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Until Quit = #True
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@@ -2320,8 +2335,8 @@ CompilerIf #PB_Compiler_IsMainFile
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CompilerEndIf
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; IDE Options = PureBasic 5.42 LTS (Windows - x64)
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; CursorPosition = 2180
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; FirstLine = 2221
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; CursorPosition = 961
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; FirstLine = 939
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; Folding = ----------------
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; EnableUnicode
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; EnableThread
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