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#  Copyright (C) 1999-2018
#  Smithsonian Astrophysical Observatory, Cambridge, MA, USA
#  For conditions of distribution and use, see copyright notice in "copyright"

package provide DS9 1.0

proc LoadFitsFile {fn layer mode} {
    global loadParam
    global current
    global pds9
    global marker

    set loadParam(file,type) fits
    set loadParam(file,mode) $mode
    set loadParam(load,type) mmapincr
    set loadParam(file,name) $fn
    set loadParam(load,layer) $layer

    ConvertFitsFile
    # save load type, since ProcessLoad will clear loadParam
    if {$loadParam(load,type) == "mmapincr"} {
	set mmap 1
    } else {
	set mmap 0
    }
    ProcessLoad

    # now autoload markers
    if {$pds9(automarker) && $mmap} {
	# now, load fits[REGION] if present
	set id [string first "\[" $fn]
	if {$id > 0} {
	    set base [string range $fn 0 [expr $id-1]]
	} else {
	    set base $fn
	}

	set reg "${base}\[REGION\]"
	if {[$current(frame) fitsy has ext "\"$reg\""]} {
	    RealizeDS9
	    catch {
		$current(frame) marker load fits "\"$reg\"" $marker(color) $marker(dashlist) $marker(width) "\{$marker(font) $marker(font,size) $marker(font,weight) $marker(font,slant)\}"
	    }
	}
    }
}

proc LoadFitsAlloc {path fn layer mode} {
    global loadParam

    set loadParam(file,type) fits
    set loadParam(file,mode) $mode
    set loadParam(load,type) allocgz
    set loadParam(file,name) $fn
    set loadParam(file,fn) $path
    set loadParam(load,layer) $layer

    ProcessLoad
}

proc LoadFitsSocket {sock fn layer mode} {
    global loadParam

    set loadParam(file,type) fits
    set loadParam(file,mode) $mode
    set loadParam(load,type) socketgz
    set loadParam(file,name) $fn
    set loadParam(socket,id) $sock
    set loadParam(load,layer) $layer

    return [ProcessLoad 0]
}

proc SaveFitsFile {which fn} {
    global current

    if {$fn == {} || $current(frame) == {}} {
	return
    }

    if {![$current(frame) has fits]} {
	return
    }

    $current(frame) save fits $which file "\{$fn\}"
}

proc SaveFitsSocket {which sock} {
    global current

    if {$current(frame) == {}} {
	return
    }

    if {![$current(frame) has fits]} {
	return
    }

    $current(frame) save fits $which socket $sock
}

proc ProcessFitsCmd {varname iname sock fn} {
    upvar $varname var
    upvar $iname i

    if {[ProcessFitsBackwardCmd $varname $iname $sock $fn]} {
	return
    }

    global parse
    set parse(sock) $sock
    set parse(fn) $fn

    fits::YY_FLUSH_BUFFER
    fits::yy_scan_string [lrange $var $i end]
    fits::yyparse
    incr i [expr $fits::yycnt-1]
}

proc FitsCmdLoad {param layer mode} {
    global parse
    
    if {$parse(sock) != {}} {
	# xpa
	if {![LoadFitsSocket $parse(sock) $param $layer $mode]} {
	    InitError xpa
	    LoadFitsFile $param $layer $mode
	}
    } else {
	# comm
	if {$parse(fn) != {}} {
	    LoadFitsAlloc $parse(fn) $param $layer $mode
	} else {
	    LoadFitsFile $param $layer $mode
	}
    }
    FinishLoad
}

proc ProcessSendFitsCmd {proc id param sock fn} {
    global parse
    set parse(proc) $proc
    set parse(id) $id

    fitssend::YY_FLUSH_BUFFER
    fitssend::yy_scan_string $param
    fitssend::yyparse
}

proc FitsSendCmd {which} {
    global parse

    if {$parse(sock) != {}} {
	# xpa
	SaveFitsSocket $which $parse(sock)
    } elseif {$parse(fn) != {}} {
	# comm
	SaveFitsFile $which $parse(fn)
	$parse(proc) $parse(id) {} $parse(fn)
    }
}

proc FitsSendCmdType {} {
    global current

    if {$current(frame) == {}} {
	return
    }

    if {[$current(frame) has fits bin]} {
	ProcessSendCmdTxt "table"
    } elseif {[$current(frame) has fits cube]} {
	ProcessSendCmdTxt "cube"
    } elseif {[$current(frame) has fits mosaic]} {
	ProcessSendCmdTxt "mosaic"
    } elseif {[$current(frame) has fits]} {
	ProcessSendCmdTxt "image"
    } else {
	return
    }
}

# backward compatibility
proc ProcessFitsBackwardCmd {varname iname sock fn} {
    upvar 2 $varname var
    upvar 2 $iname i

    set vvar $var
    set ii $i

    switch -- [string tolower [lindex $var $i]] {
	new {
	    switch -- [string tolower [lindex $var [expr $i+1]]] {
		rgbimage {
		    set vvar [lreplace $var 1 1]
		    ProcessRGBImageCmd vvar ii $sock $fn
		    return 1
		}
		rgbcube {
		    set vvar [lreplace $var 1 1]
		    ProcessRGBCubeCmd vvar ii $sock $fn
		    return 1
		}

		datacube -
		mecube -
		medatacube {
		    set vvar [lreplace $var 1 1]
		    ProcessMECubeCmd vvar ii $sock $fn
		    return 1
		}

		mosaicimage {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicImageCmd vvar ii $sock $fn
		    return 1
		}
		mosaicimagewcs {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicImageWCSCmd vvar ii $sock $fn
		    return 1
		}
		mosaicimageiraf {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicImageIRAFCmd vvar ii $sock $fn
		    return 1
		}
		mosaicimagewfpc2 {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicImageWFPC2Cmd vvar ii $sock $fn
		    return 1
		}

		mosaic {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicCmd vvar ii $sock $fn
		    return 1
		}
		mosaicwcs {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicWCSCmd vvar ii $sock $fn
		    return 1
		}
		mosaiciraf {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicIRAFCmd vvar ii $sock $fn
		    return 1
		}
	    }
	}

	mask {
	    switch -- [string tolower [lindex $var [expr $i+1]]] {
		mosaicimage {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicImageCmd vvar ii $sock $fn
		    return 1
		}
		mosaicimagewcs {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicImageWCSCmd vvar ii $sock $fn
		    return 1
		}
		mosaicimageiraf {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicImageIRAFCmd vvar ii $sock $fn
		    return 1
		}
		mosaicimagewfpc2 {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicImageWFPC2Cmd vvar ii $sock $fn
		    return 1
		}

		mosaic {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicCmd vvar ii $sock $fn
		    return 1
		}
		mosaicwcs {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicWCSCmd vvar ii $sock $fn
		    return 1
		}
		mosaiciraf {
		    set vvar [lreplace $var 1 1]
		    ProcessMosaicIRAFCmd vvar ii $sock $fn
		    return 1
		}
	    }
	}

	datacube -
	mecube -
	medatacube {
	    set vvar [lreplace $var 0 0]
	    ProcessMECubeCmd vvar ii $sock $fn
	    return 1
	}
	memf -
	multiframe {
	    set vvar [lreplace $var 0 0]
	    ProcessMultiFrameCmd vvar ii $sock $fn
	    return 1
	}

	rgbimage {
	    set vvar [lreplace $var 0 0]
	    ProcessRGBImageCmd vvar ii $sock $fn
	    return 1
	}
	rgbcube {
	    set vvar [lreplace $var 0 0]
	    ProcessRGBCubeCmd vvar ii $sock $fn
	    return 1
	}

	mosaicimage {
	    set vvar [lreplace $var 0 0]
	    ProcessMosaicImageCmd vvar ii $sock $fn
	    return 1
	}
	mosaicimagewcs {
	    set vvar [lreplace $var 0 0]
	    ProcessMosaicImageWCSCmd vvar ii $sock $fn
	    return 1
	}
	mosaicimageiraf {
	    set vvar [lreplace $var 0 0]
	    ProcessMosaicImageIRAFCmd vvar ii $sock $fn
	    return 1
	}
	mosaicimagewfpc2 {
	    set vvar [lreplace $var 0 0]
	    ProcessMosaicImageWFPC2Cmd vvar ii $sock $fn
	    return 1
	}

	mosaic {
	    set vvar [lreplace $var 0 0]
	    ProcessMosaicCmd vvar ii $sock $fn
	    return 1
	}
	mosaicwcs {
	    set vvar [lreplace $var 0 0]
	    ProcessMosaicWCSCmd vvar ii $sock $fn
	    return 1
	}
	mosaiciraf {
	    set vvar [lreplace $var 0 0]
	    ProcessMosaicIRAFCmd vvar ii $sock $fn
	    return 1
	}
    }

    return 0
}