api.lua

-- line width
function clickVeryFine()
  app.uiAction({["action"] = "ACTION_SIZE_VERY_FINE"})
end

function clickFine()
  app.uiAction({["action"] = "ACTION_SIZE_FINE"})
end

function clickMedium()
  app.uiAction({["action"] = "ACTION_SIZE_MEDIUM"})
end

function clickThick()
  app.uiAction({["action"] = "ACTION_SIZE_THICK"})
end

function clickVeryThick()
  app.uiAction({["action"] = "ACTION_SIZE_VERY_THICK"})
end

-- tools
function clickPen()
  app.uiAction({["action"] = "ACTION_TOOL_PEN"})
end

function clickEraser()
  app.uiAction({["action"] = "ACTION_TOOL_ERASER"})
end

function clickHighlighter()
  app.uiAction({["action"] = "ACTION_TOOL_HIGHLIGHTER"})
end

function clickSelectRegion()
  app.uiAction({["action"] = "ACTION_TOOL_SELECT_REGION"})
end

function clickSelectRectangle()
  app.uiAction({["action"] = "ACTION_TOOL_SELECT_RECT"})
end

function clickSelectObject()
  app.uiAction({["action"] = "ACTION_TOOL_SELECT_OBJECT"})
end

function clickTex()
  app.uiAction({["action"] = "ACTION_TEX"})
end

function clickDelete()
  app.uiAction({["action"] = "ACTION_DELETE"})
end


-- shapes
function clickRuler(enabled)
  app.uiAction({["action"] = "ACTION_RULER", ["enabled"] = enabled})
end

function clickArrow(enabled)
  app.uiAction({["action"] = "ACTION_TOOL_DRAW_ARROW", ["enabled"] = enabled})
end

function clickEllipse(enabled)
  app.uiAction({["action"] = "ACTION_TOOL_DRAW_ELLIPSE", ["enabled"] = enabled})
end

function clickRectangle(enabled)
  app.uiAction({["action"] = "ACTION_TOOL_DRAW_RECT", ["enabled"] = enabled})
end

function clickCoordSystem(enabled)
  app.uiAction({["action"] = "ACTION_TOOL_DRAW_COORDINATE_SYSTEM", ["enabled"] = enabled})
end

function clickSpline(enabled)
  app.uiAction({["action"] = "ACTION_TOOL_DRAW_SPLINE", ["enabled"] = enabled})
end

function clickFill(enabled)
  app.uiAction({["action"] = "ACTION_TOOL_FILL", ["selection"] = true, ["enabled"] = enabled})
end


-- linestyle
function clickPlain()
  app.uiAction({["action"] = "ACTION_TOOL_LINE_STYLE_PLAIN"})
end

function clickDotted()
  app.uiAction({["action"] = "ACTION_TOOL_LINE_STYLE_DOT"})
end

function clickDashed()
  app.uiAction({["action"] = "ACTION_TOOL_LINE_STYLE_DASH"})
end

function clickDashDotted()
  app.uiAction({["action"] = "ACTION_TOOL_LINE_STYLE_DASH_DOT"})
end

-- color
function changeToolColor(color)
  local result = app.changeToolColor({["color"] = color, ["selection"] = true})

  -- change text tool color too, because (with the default template) the TEX tool also uses that color
  app.changeToolColor({["color"] = color, ["tool"] = "TEXT"})
end

-- zooming
function clickZoomIn()
  app.uiAction({["action"] = "ACTION_ZOOM_IN"})
end

function clickZoomOut()
  app.uiAction({["action"] = "ACTION_ZOOM_OUT"})
end

function clickZoomFit()
  app.uiAction({["action"] = "ACTION_ZOOM_FIT"})
end

-- page
function clickCopyPage()
  app.sidebarAction("COPY")
end

function clickDeletePage()
  app.uiAction({["action"] = "ACTION_DELETE_PAGE"})
end

function clickMoveUp()
  app.sidebarAction("MOVE_UP")
end

function clickMoveDown()
  app.sidebarAction("MOVE_DOWN")
end

function clickNewBefore()
  app.sidebarAction("NEW_BEFORE")
end

function clickNewAfter()
  app.sidebarAction("NEW_AFTER")
end

function clickNewLayer()
  app.uiAction({["action"] = "ACTION_NEW_LAYER"})
end

function clickDeleteLayer()
  app.uiAction({["action"] = "ACTION_DELETE_LAYER"})
end

-- navigation
function clickGoToFirstPage()
  app.scrollToPage(1)
end

function clickGoToTop()
  app.scrollToPos(0, 0, false)
end

function goToPage(page)
  app.scrollToPage(page)
end

function goToPos(x, y)
  app.scrollToPos(x, y)
end

function clickScrollPageDown()
  app.scrollToPage(1, true)
end

function clickScrollPageUp()
  app.scrollToPage(-1, true)
end

function clickGoToBottom()
  local docStructure = app.getDocumentStructure()
  local currentPage = docStructure["currentPage"]
  local pageHeight = app.getDocumentStructure()["pages"][currentPage]["pageHeight"]
  app.scrollToPos(0, pageHeight, false)
end

function clickGoToLastPage()
  -- it gets clamped in applib_scrollToPage anyway.
  app.scrollToPage(1000000000)
end

function currentPage()
  return app.getDocumentStructure()["currentPage"]
end

function clickLayerDown()
  app.uiAction({["action"] = "ACTION_GOTO_PREVIOUS_LAYER"})
end

function clickLayerUp()
  app.uiAction({["action"] = "ACTION_GOTO_NEXT_LAYER"})
end


-- history
function clickUndo()
  app.uiAction({["action"] = "ACTION_UNDO"})
end

function clickRedo()
  app.uiAction({["action"] = "ACTION_REDO"})
end


-- files
function clickAnnotatePDF()
  app.uiAction({["action"] = "ACTION_ANNOTATE_PDF"})
end

function clickExportAsPDF()
  app.uiAction({["action"] = "ACTION_EXPORT_AS_PDF"})
end

function clickSave()
  app.uiAction({["action"] = "ACTION_SAVE"})
end

function clickSaveAs()
  app.uiAction({["action"] = "ACTION_SAVE_AS"})
end

function clickOpen()
  app.uiAction({["action"] = "ACTION_OPEN"})
end

-- background
function clickRuledBG()
  app.changeCurrentPageBackground("ruled");
end

function clickGraphBG()
  app.changeCurrentPageBackground("graph");
end

function clickIsometricGraphBG()
  app.changeCurrentPageBackground("isograph");
end

function clickDottedGraphBG()
  app.changeCurrentPageBackground("dotted");
end

function clickIsometricDottedGraphBG()
  app.changeCurrentPageBackground("isodotted");
end

function clickPlainBG()
  app.changeCurrentPageBackground("plain");
end


-- snapping
function clickGridSnap(enabled)
  -- it only toggles, ie. enabled = true / false is not used
  app.uiAction({
    ["action"] = "ACTION_GRID_SNAPPING", 
    ["group"] = "GROUP_GRID_SNAPPING", 
    ["enabled"] = enabled
  })
end

function clickRotationSnap(enabled)
  -- it only toggles, ie. enabled = true / false is not used
  app.uiAction({
    ["action"] = "ACTION_ROTATION_SNAPPING",
    ["group"] = "GROUP_SNAPPING", 
    ["enabled"] = enabled
  })
end