## useDynLib("grid") # done in .onLoad

export(
       # Conversion of units
       "convertUnit", "convertX", "convertY",
       "convertWidth", "convertHeight",
       # Deprecated conversion functions
       "convertNative", 
       "grid.convertWidth", "grid.convertX", "grid.convertY",
       "grid.convert", "grid.convertHeight",

       "current.viewport", "current.vpTree", 
       "current.transform",
       "engine.display.list", 
       "gpar", "get.gpar", 
       "grid.collection", 
       "grid.copy", "grid.display.list", "grid.draw", 
       "grid.grill", 
       "grid.layout", "grid.locator",
       "grid.newpage", 
       "grid.plot.and.legend", 
       "grid.pretty", 
       "grid.show.layout", "grid.show.viewport", 

       "unit",
       "is.unit",
       "unit.c", "unit.length", "unit.pmax", "unit.pmin", "unit.rep",
       "stringWidth", "stringHeight", "grobWidth", "grobHeight",
       "absolute.size", 

       "viewport", "vpList", "vpStack", "vpTree", "vpPath",
       "pop.viewport", "push.viewport", 
       "popViewport", "pushViewport",
       "dataViewport", "plotViewport", 
       "downViewport", "upViewport", "seekViewport", 
       
       "drawDetails", "preDrawDetails", "postDrawDetails",
       "editDetails", 
       "validDetails",
       "heightDetails", "widthDetails",
       
#       "height", "heightDetails",
#       "width", "widthDetails", 

       # Creating and modifying grobs (and gTrees)
       "grid.grob",
       "grob", "gList", "gTree", "gPath", 
       "grid.get", "grid.set", "grid.add", "grid.remove", "grid.edit",
       "getGrob", "setGrob", "addGrob", "removeGrob", "editGrob",
#       "childNames",

       # Creating and drawing predefined grobs and gTrees
       "grid.arrows", "grid.circle",
       "grid.line.to", "grid.lines", "grid.move.to",        
       "grid.points", "grid.polygon",
       "grid.rect", "grid.segments", "grid.text",
       "grid.xaxis", "grid.yaxis", 
       "arrowsGrob", "circleGrob", "linesGrob", "lineToGrob", "moveToGrob",
       "pointsGrob", "polygonGrob", "rectGrob", "segmentsGrob", "textGrob",
       "xaxisGrob", "yaxisGrob",
       
       # Frames and packing
       "grid.frame", "grid.pack", "grid.place",
       "frameGrob", "packGrob", "placeGrob"
       )

## Documented as internal but in Paul's first attempt at a sensible
## export list:
export("draw.details",
       "grid.legend", "grid.multipanel",
       "grid.panel", "grid.strip",
       "layoutRegion",
       "viewport.layout", "viewport.transform")

## Manipulated via C code ...
## export("get.gpar", "grid.top.level.vp")

## <FIXME>
## In the grid.layout.Rd \example ...
export("layout.torture")
## </FIXME>

## S3 methods for generics in base
S3method("[", "unit")
S3method("[", "unit.arithmetic")
S3method("[", "unit.list")
S3method("Ops", "unit")
S3method("Summary", "unit")
S3method("as.character", "path")
S3method("as.character", "unit")
S3method("as.character", "unit.arithmetic")
S3method("as.character", "unit.list")
S3method("as.character", "viewport")
S3method("as.character", "vpList")
S3method("as.character", "vpStack")
S3method("as.character", "vpTree")
S3method("print", "grob")
S3method("print", "unit")
S3method("print", "viewport")
S3method("print", "path")

## S3 methods for exported generics in grid
S3method("unit.length", "unit")
S3method("unit.length", "unit.list")
S3method("unit.length", "unit.arithmetic")

S3method("downViewport", "default")
S3method("downViewport", "vpPath")

S3method("grid.draw", "grob")
S3method("grid.draw", "gTree")
S3method("grid.draw", "viewport")
S3method("grid.draw", "vpPath")
S3method("grid.draw", "pop")
S3method("grid.draw", "up")
S3method("drawDetails", "arrows")
S3method("drawDetails", "circle")
S3method("drawDetails", "grob")
S3method("drawDetails", "line.to")
S3method("drawDetails", "lines")
S3method("drawDetails", "move.to")
S3method("drawDetails", "points")
S3method("drawDetails", "polygon")
S3method("drawDetails", "rect")
S3method("drawDetails", "segments")
S3method("drawDetails", "text")
S3method("drawDetails", "xaxis")
S3method("drawDetails", "yaxis")
S3method("editDetails", "default")
S3method("editDetails", "xaxis")
S3method("editDetails", "yaxis")
S3method("grobHeight", "grob")
S3method("grobHeight", "gList")
S3method("grobWidth", "grob")
S3method("grobWidth", "gList")
S3method("heightDetails", "default")
S3method("heightDetails", "frame")
S3method("heightDetails", "rect")
S3method("heightDetails", "text")
#S3method("height.details", "viewport")
S3method("preDraw", "grob")
S3method("preDraw", "gTree")
S3method("preDrawDetails", "grob")
S3method("postDrawDetails", "grob")
S3method("validDetails", "arrows")
S3method("validDetails", "grob")
S3method("validDetails", "lines")
S3method("validDetails", "line.to")
S3method("validDetails", "move.to")
S3method("validDetails", "segments")
S3method("widthDetails", "default")
S3method("widthDetails", "frame")
#S3method("width.details", "rect")
S3method("widthDetails", "text")
#S3method("width.details", "viewport")

# S3 methods for internal generics that are used in calls to external fns
S3method("depth", "viewport")
S3method("depth", "vpList")
S3method("depth", "vpStack")
S3method("depth", "vpTree")
S3method("depth", "path")
S3method("pushgrobvp", "viewport")
S3method("pushgrobvp", "vpPath")
S3method("popgrobvp", "viewport")
S3method("popgrobvp", "vpPath")
S3method("setvpgpar", "viewport")
S3method("setvpgpar", "vpStack")
S3method("setvpgpar", "vpList")
S3method("setvpgpar", "vpTree")
S3method("push.vp", "default")
S3method("push.vp", "viewport")
S3method("push.vp", "vpList")
S3method("push.vp", "vpStack")
S3method("push.vp", "vpTree")

