def OnCreateProfile(self, event):
"""Main routine for creating a profile. Uses r.profile to
create a list of distance,cell value pairs. This is passed to
plot to create a line graph of the profile. If the profile
transect is in multiple segments, these are drawn as
points. Profile transect is drawn, using methods in mapdisp.py
"""
if len(self.transect) == 0 or len(self.rasterList) == 0:
dlg = wx.MessageDialog(
parent=self,
message=
_('You must draw a transect to profile in the map display window.'
),
caption=_('Nothing to profile'),
style=wx.OK | wx.ICON_INFORMATION | wx.CENTRE)
dlg.ShowModal()
dlg.Destroy()
return
self.SetCursor(StockCursor(wx.CURSOR_ARROW))
self.SetupProfile()
p = self.CreatePlotList()
self.DrawPlot(p)
def OnCreateScatter(self, event):
"""Main routine for creating a scatterplot. Uses r.stats to
create a list of cell value pairs. This is passed to
plot to create a scatterplot.
"""
self.SetCursor(StockCursor(wx.CURSOR_ARROW))
self.SetGraphStyle()
wx.BeginBusyCursor()
wx.SafeYield()
self.SetupScatterplot()
p = self.CreatePlotList()
if p:
self.DrawPlot(p)
wx.EndBusyCursor()
else:
wx.EndBusyCursor()
GMessage(_("Nothing to plot."), parent=self)
def OnCreateHist(self, event):
"""Main routine for creating a histogram. Uses r.stats to
create a list of cell value and count/percent/area pairs. This is passed to
plot to create a line graph of the histogram.
"""
try:
self.SetCursor(StockCursor(wx.CURSOR_ARROW))
except:
pass
self.SetGraphStyle()
wx.BeginBusyCursor()
wx.SafeYield()
self.SetupHistogram()
p = self.CreatePlotList()
self.DrawPlot(p)
wx.EndBusyCursor()
def __init__(self, parent, giface, Map):
self.parent = parent
self.Map = Map
self._giface = giface
# Emitted when someone registers as mouse event handler
self.mouseHandlerRegistered = Signal(
"MapWindow.mouseHandlerRegistered")
# Emitted when mouse event handler is unregistered
self.mouseHandlerUnregistered = Signal(
"MapWindow.mouseHandlerUnregistered")
# emitted after double click in pointer mode on legend, text, scalebar
self.overlayActivated = Signal("MapWindow.overlayActivated")
# emitted when overlay should be hidden
self.overlayRemoved = Signal("MapWindow.overlayRemoved")
# mouse attributes -- position on the screen, begin and end of
# dragging, and type of drawing
self.mouse = {
"begin": [0, 0], # screen coordinates
"end": [0, 0],
"use": "pointer",
"box": "point",
}
# last east, north coordinates, changes on mouse motion
self.lastEN = None
# stores overridden cursor
self._overriddenCursor = None
# dictionary where event types are stored as keys and lists of
# handlers for these types as values
self.handlersContainer = {
wx.EVT_LEFT_DOWN: [],
wx.EVT_LEFT_UP: [],
wx.EVT_LEFT_DCLICK: [],
wx.EVT_MIDDLE_DOWN: [],
wx.EVT_MIDDLE_UP: [],
wx.EVT_MIDDLE_DCLICK: [],
wx.EVT_RIGHT_DOWN: [],
wx.EVT_RIGHT_UP: [],
wx.EVT_RIGHT_DCLICK: [],
wx.EVT_MOTION: [],
wx.EVT_ENTER_WINDOW: [],
wx.EVT_LEAVE_WINDOW: [],
wx.EVT_MOUSEWHEEL: [],
wx.EVT_MOUSE_EVENTS: [],
}
# available cursors
self._cursors = {
"default": StockCursor(cursorId=wx.CURSOR_ARROW),
"cross": StockCursor(cursorId=wx.CURSOR_CROSS),
"hand": StockCursor(cursorId=wx.CURSOR_HAND),
"pencil": StockCursor(cursorId=wx.CURSOR_PENCIL),
"sizenwse": StockCursor(cursorId=wx.CURSOR_SIZENWSE),
}
# default cursor for window is arrow (at least we rely on it here)
# but we need to define attribute here
# cannot call SetNamedCursor since it expects the instance
# to be a wx window, so setting only the attribute
self._cursor = "default"
wx.CallAfter(self.InitBinding)