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|
"""!
@package gcpmapdisp.py
@brief display to manage ground control points with two toolbars, one for
various display management functions, one for manipulating GCPs.
Classes:
- MapFrame
(C) 2006-2010 by the GRASS Development Team
This program is free software under the GNU General Public
License (>=v2). Read the file COPYING that comes with GRASS
for details.
Derived from mapdisp.py
@author Markus Metz
"""
import os
import sys
import glob
import math
import tempfile
import copy
import platform
import globalvar
import wx
import wx.aui
try:
import subprocess
except:
CompatPath = os.path.join(globalvar.ETCWXDIR)
sys.path.append(CompatPath)
from compat import subprocess
gmpath = os.path.join(globalvar.ETCWXDIR, "icons")
sys.path.append(gmpath)
grassPath = os.path.join(globalvar.ETCDIR, "python")
sys.path.append(grassPath)
import render
import toolbars
import menuform
import gselect
import disp_print
import gcmd
import dbm
import dbm_dialogs
import globalvar
import utils
import gdialogs
from grass.script import core as grass
from debug import Debug
from icon import Icons
from preferences import globalSettings as UserSettings
from mapdisp_command import Command
from mapdisp_window import BufferedWindow
# for standalone app
cmdfilename = None
class MapFrame(wx.Frame):
"""!Main frame for map display window. Drawing takes place in
child double buffered drawing window.
"""
def __init__(self, parent=None, id=wx.ID_ANY, title=_("GRASS GIS Manage Ground Control Points"),
style=wx.DEFAULT_FRAME_STYLE, toolbars=["gcpdisp"],
tree=None, notebook=None, lmgr=None, page=None,
Map=None, auimgr=None, **kwargs):
"""!Main map display window with toolbars, statusbar and
DrawWindow
@param toolbars array of activated toolbars, e.g. ['map', 'digit']
@param tree reference to layer tree
@param notebook control book ID in Layer Manager
@param lmgr Layer Manager
@param page notebook page with layer tree
@param Map instance of render.Map
@param auimgs AUI manager
@param kwargs wx.Frame attribures
"""
self._layerManager = lmgr # Layer Manager object
self.Map = Map # instance of render.Map
self.tree = tree # Layer Manager layer tree object
self.page = page # Notebook page holding the layer tree
self.layerbook = notebook # Layer Manager layer tree notebook
self.parent = parent
if 'name' not in kwargs:
kwargs['name'] = 'GCPMapWindow'
wx.Frame.__init__(self, parent, id, title, style = style, **kwargs)
# available cursors
self.cursors = {
# default: cross
# "default" : wx.StockCursor(wx.CURSOR_DEFAULT),
"default" : wx.StockCursor(wx.CURSOR_ARROW),
"cross" : wx.StockCursor(wx.CURSOR_CROSS),
"hand" : wx.StockCursor(wx.CURSOR_HAND),
"pencil" : wx.StockCursor(wx.CURSOR_PENCIL),
"sizenwse": wx.StockCursor(wx.CURSOR_SIZENWSE)
}
#
# set the size & system icon
#
self.SetClientSize(self.GetSize())
self.iconsize = (16, 16)
self.SetIcon(wx.Icon(os.path.join(globalvar.ETCICONDIR, 'grass_map.ico'), wx.BITMAP_TYPE_ICO))
#
# Fancy gui
#
self._mgr = wx.aui.AuiManager(self)
#
# Add toolbars
#
self.toolbars = { 'map' : None,
'vdigit' : None,
'georect' : None,
'gcpdisp' : None,
'gcpman' : None,
'nviz' : None }
for toolb in toolbars:
self.AddToolbar(toolb)
self.activemap = self.toolbars['gcpdisp'].togglemap
self.activemap.SetSelection(0)
self.SrcMap = self.grwiz.SrcMap # instance of render.Map
self.TgtMap = self.grwiz.TgtMap # instance of render.Map
self._mgr.SetDockSizeConstraint(0.5, 0.5)
#
# Add statusbar
#
self.statusbar = self.CreateStatusBar(number=4, style=0)
self.statusbar.SetStatusWidths([-5, -2, -1, -1])
self.statusbarWin = dict()
self.statusbarWin['toggle'] = wx.Choice(self.statusbar, wx.ID_ANY,
choices = [_("Coordinates"),
_("Extent"),
_("Comp. region"),
_("Show comp. extent"),
_("Display mode"),
_("Display geometry"),
_("Map scale"),
_("Go to GCP No."),
_("RMS error")])
# set StatusBar to Go to GCP No.
self.statusbarWin['toggle'].SetSelection(7)
self.statusbar.Bind(wx.EVT_CHOICE, self.OnToggleStatus, self.statusbarWin['toggle'])
# auto-rendering checkbox
self.statusbarWin['render'] = wx.CheckBox(parent=self.statusbar, id=wx.ID_ANY,
label=_("Render"))
self.statusbar.Bind(wx.EVT_CHECKBOX, self.OnToggleRender, self.statusbarWin['render'])
self.statusbarWin['render'].SetValue(UserSettings.Get(group='display',
key='autoRendering',
subkey='enabled'))
self.statusbarWin['render'].SetToolTip(wx.ToolTip (_("Enable/disable auto-rendering")))
# show region
self.statusbarWin['region'] = wx.CheckBox(parent=self.statusbar, id=wx.ID_ANY,
label=_("Show computational extent"))
self.statusbar.Bind(wx.EVT_CHECKBOX, self.OnToggleShowRegion, self.statusbarWin['region'])
self.statusbarWin['region'].SetValue(False)
self.statusbarWin['region'].Hide()
self.statusbarWin['region'].SetToolTip(wx.ToolTip (_("Show/hide computational "
"region extent (set with g.region). "
"Display region drawn as a blue box inside the "
"computational region, "
"computational region inside a display region "
"as a red box).")))
# set resolution
self.statusbarWin['resolution'] = wx.CheckBox(parent=self.statusbar, id=wx.ID_ANY,
label=_("Constrain display resolution to computational settings"))
self.statusbar.Bind(wx.EVT_CHECKBOX, self.OnToggleResolution, self.statusbarWin['resolution'])
self.statusbarWin['resolution'].SetValue(UserSettings.Get(group='display', key='compResolution', subkey='enabled'))
self.statusbarWin['resolution'].Hide()
self.statusbarWin['resolution'].SetToolTip(wx.ToolTip (_("Constrain display resolution "
"to computational region settings. "
"Default value for new map displays can "
"be set up in 'User GUI settings' dialog.")))
# map scale
self.statusbarWin['mapscale'] = wx.ComboBox(parent = self.statusbar, id = wx.ID_ANY,
style = wx.TE_PROCESS_ENTER,
size=(150, -1))
self.statusbarWin['mapscale'].SetItems(['1:1000',
'1:5000',
'1:10000',
'1:25000',
'1:50000',
'1:100000',
'1:1000000'])
self.statusbarWin['mapscale'].Hide()
self.statusbar.Bind(wx.EVT_TEXT_ENTER, self.OnChangeMapScale, self.statusbarWin['mapscale'])
self.statusbar.Bind(wx.EVT_COMBOBOX, self.OnChangeMapScale, self.statusbarWin['mapscale'])
# go to
self.statusbarWin['goto'] = wx.SpinCtrl(parent=self.statusbar, id=wx.ID_ANY,
min=0)
self.statusbar.Bind(wx.EVT_SPINCTRL, self.OnGoTo, self.statusbarWin['goto'])
self.statusbarWin['goto'].Hide()
self.statusbar.Bind(wx.EVT_TEXT_ENTER, self.OnGoTo, self.statusbarWin['goto'])
# projection, unused but BufferedWindow checks for it
self.statusbarWin['projection'] = wx.CheckBox(parent=self.statusbar, id=wx.ID_ANY,
label=_("Use defined projection"))
self.statusbarWin['projection'].SetValue(False)
size = self.statusbarWin['projection'].GetSize()
self.statusbarWin['projection'].SetMinSize((size[0] + 150, size[1]))
self.statusbarWin['projection'].SetToolTip(wx.ToolTip (_("Reproject coordinates displayed "
"in the statusbar. Projection can be "
"defined in GUI preferences dialog "
"(tab 'Display')")))
self.statusbarWin['projection'].Hide()
# mask
self.statusbarWin['mask'] = wx.StaticText(parent = self.statusbar, id = wx.ID_ANY,
label = '')
self.statusbarWin['mask'].SetForegroundColour(wx.Colour(255, 0, 0))
# on-render gauge
self.statusbarWin['progress'] = wx.Gauge(parent=self.statusbar, id=wx.ID_ANY,
range=0, style=wx.GA_HORIZONTAL)
self.statusbarWin['progress'].Hide()
self.StatusbarReposition() # reposition statusbar
#
# Init map display (buffered DC & set default cursor)
#
self.grwiz.SwitchEnv('source')
self.SrcMapWindow = BufferedWindow(self, id=wx.ID_ANY,
Map=self.SrcMap, tree=self.tree, lmgr=self._layerManager)
self.grwiz.SwitchEnv('target')
self.TgtMapWindow = BufferedWindow(self, id=wx.ID_ANY,
Map=self.TgtMap, tree=self.tree, lmgr=self._layerManager)
self.MapWindow = self.SrcMapWindow
self.Map = self.SrcMap
self.SrcMapWindow.SetCursor(self.cursors["cross"])
self.TgtMapWindow.SetCursor(self.cursors["cross"])
#
# initialize region values
#
self.__InitDisplay()
#
# Bind various events
#
self.Bind(wx.EVT_ACTIVATE, self.OnFocus)
self.Bind(render.EVT_UPDATE_PRGBAR, self.OnUpdateProgress)
self.Bind(wx.EVT_SIZE, self.OnDispResize)
self.activemap.Bind(wx.EVT_CHOICE, self.OnUpdateActive)
#
# Update fancy gui style
#
# AuiManager wants a CentrePane, workaround to get two equally sized windows
self.list = self.CreateGCPList()
#self.SrcMapWindow.SetSize((300, 300))
#self.TgtMapWindow.SetSize((300, 300))
self.list.SetSize((100, 150))
self._mgr.AddPane(self.list, wx.aui.AuiPaneInfo().
Name("gcplist").Caption(_("GCP List")).LeftDockable(False).
RightDockable(False).PinButton().FloatingSize((600,200)).
CloseButton(False).DestroyOnClose(True).
Top().Layer(1).MinSize((200,100)))
self._mgr.AddPane(self.SrcMapWindow, wx.aui.AuiPaneInfo().
Name("source").Caption(_("Source Display")).Dockable(False).
CloseButton(False).DestroyOnClose(True).Floatable(False).
Centre())
self._mgr.AddPane(self.TgtMapWindow, wx.aui.AuiPaneInfo().
Name("target").Caption(_("Target Display")).Dockable(False).
CloseButton(False).DestroyOnClose(True).Floatable(False).
Right().Layer(0))
srcwidth, srcheight = self.SrcMapWindow.GetSize()
tgtwidth, tgtheight = self.TgtMapWindow.GetSize()
srcwidth = (srcwidth + tgtwidth) / 2
self._mgr.GetPane("target").Hide()
self._mgr.Update()
self._mgr.GetPane("source").BestSize((srcwidth, srcheight))
self._mgr.GetPane("target").BestSize((srcwidth, srcheight))
if self.show_target:
self._mgr.GetPane("target").Show()
else:
self.activemap.Enable(False)
# needed by Mac OS, does not harm on Linux, breaks display on Windows
if platform.system() != 'Windows':
self._mgr.Update()
#
# Init print module and classes
#
self.printopt = disp_print.PrintOptions(self, self.MapWindow)
#
# Initialization of digitization tool
#
self.digit = None
# set active map
self.MapWindow = self.SrcMapWindow
self.Map = self.SrcMap
# do not init zoom history here, that happens when zooming to map(s)
#
# Re-use dialogs
#
self.dialogs = {}
self.dialogs['attributes'] = None
self.dialogs['category'] = None
self.dialogs['barscale'] = None
self.dialogs['legend'] = None
self.decorationDialog = None # decoration/overlays
def AddToolbar(self, name):
"""!Add defined toolbar to the window
Currently known toolbars are:
- 'map' - basic map toolbar
- 'vdigit' - vector digitizer
- 'gcpdisp' - GCP Manager, Display
- 'gcpman' - GCP Manager, points management
- 'georect' - georectifier
- 'nviz' - 3D view mode
"""
# default toolbar
if name == "map":
self.toolbars['map'] = toolbars.MapToolbar(self, self.Map)
self._mgr.AddPane(self.toolbars['map'],
wx.aui.AuiPaneInfo().
Name("maptoolbar").Caption(_("Map Toolbar")).
ToolbarPane().Top().
LeftDockable(False).RightDockable(False).
BottomDockable(False).TopDockable(True).
CloseButton(False).Layer(2).
BestSize((self.toolbars['map'].GetSize())))
# GCP display
elif name == "gcpdisp":
self.toolbars['gcpdisp'] = toolbars.GCPDisplayToolbar(self)
self._mgr.AddPane(self.toolbars['gcpdisp'],
wx.aui.AuiPaneInfo().
Name("gcpdisplaytoolbar").Caption(_("GCP Display toolbar")).
ToolbarPane().Top().
LeftDockable(False).RightDockable(False).
BottomDockable(False).TopDockable(True).
CloseButton(False).Layer(2))
if self.show_target == False:
self.toolbars['gcpdisp'].Enable('zoommenu', enable = False)
self.toolbars['gcpman'] = toolbars.GCPManToolbar(self)
self._mgr.AddPane(self.toolbars['gcpman'],
wx.aui.AuiPaneInfo().
Name("gcpmanagertoolbar").Caption(_("GCP Manager toolbar")).
ToolbarPane().Top().Row(1).
LeftDockable(False).RightDockable(False).
BottomDockable(False).TopDockable(True).
CloseButton(False).Layer(2))
self._mgr.Update()
def __InitDisplay(self):
"""
Initialize map display, set dimensions and map region
"""
self.width, self.height = self.GetClientSize()
Debug.msg(2, "MapFrame.__InitDisplay():")
self.grwiz.SwitchEnv('source')
self.SrcMap.ChangeMapSize(self.GetClientSize())
self.SrcMap.region = self.SrcMap.GetRegion() # g.region -upgc
self.grwiz.SwitchEnv('target')
self.TgtMap.ChangeMapSize(self.GetClientSize())
self.TgtMap.region = self.TgtMap.GetRegion() # g.region -upgc
# self.SrcMap.SetRegion() # adjust region to match display window
# self.TgtMap.SetRegion() # adjust region to match display window
def OnUpdateProgress(self, event):
"""
Update progress bar info
"""
self.statusbarWin['progress'].SetValue(event.value)
event.Skip()
def OnFocus(self, event):
"""
Change choicebook page to match display.
Or set display for georectifying
"""
if self._layerManager and \
self._layerManager.gcpmanagement:
# in GCP Management, set focus to current MapWindow for mouse actions
self.OnPointer(event)
self.MapWindow.SetFocus()
else:
# change bookcontrol page to page associated with display
# GCP Manager: use bookcontrol?
if self.page:
pgnum = self.layerbook.GetPageIndex(self.page)
if pgnum > -1:
self.layerbook.SetSelection(pgnum)
event.Skip()
def OnDraw(self, event):
"""!Re-display current map composition
"""
self.MapWindow.UpdateMap(render = False)
def OnRender(self, event):
"""!Re-render map composition (each map layer)
"""
# delete tmp map layers (queries)
qlayer = self.Map.GetListOfLayers(l_name=globalvar.QUERYLAYER)
for layer in qlayer:
self.Map.DeleteLayer(layer)
self.SrcMapWindow.UpdateMap(render=True)
if self.show_target:
self.TgtMapWindow.UpdateMap(render=True)
# update statusbar
self.StatusbarUpdate()
def OnPointer(self, event):
"""!Pointer button clicked
"""
# change the cursor
self.SrcMapWindow.SetCursor(self.cursors["cross"])
self.SrcMapWindow.mouse['use'] = "pointer"
self.SrcMapWindow.mouse['box'] = "point"
self.TgtMapWindow.SetCursor(self.cursors["cross"])
self.TgtMapWindow.mouse['use'] = "pointer"
self.TgtMapWindow.mouse['box'] = "point"
def OnZoomIn(self, event):
"""
Zoom in the map.
Set mouse cursor, zoombox attributes, and zoom direction
"""
if self.toolbars['map']:
self.toolbars['map'].OnTool(event)
self.toolbars['map'].action['desc'] = ''
self.MapWindow.mouse['use'] = "zoom"
self.MapWindow.mouse['box'] = "box"
self.MapWindow.zoomtype = 1
self.MapWindow.pen = wx.Pen(colour='Red', width=2, style=wx.SHORT_DASH)
# change the cursor
self.MapWindow.SetCursor(self.cursors["cross"])
if self.MapWindow == self.SrcMapWindow:
win = self.TgtMapWindow
elif self.MapWindow == self.TgtMapWindow:
win = self.SrcMapWindow
win.mouse['use'] = "zoom"
win.mouse['box'] = "box"
win.zoomtype = 1
win.pen = wx.Pen(colour='Red', width=2, style=wx.SHORT_DASH)
# change the cursor
win.SetCursor(self.cursors["cross"])
def OnZoomOut(self, event):
"""
Zoom out the map.
Set mouse cursor, zoombox attributes, and zoom direction
"""
if self.toolbars['map']:
self.toolbars['map'].OnTool(event)
self.toolbars['map'].action['desc'] = ''
self.MapWindow.mouse['use'] = "zoom"
self.MapWindow.mouse['box'] = "box"
self.MapWindow.zoomtype = -1
self.MapWindow.pen = wx.Pen(colour='Red', width=2, style=wx.SHORT_DASH)
# change the cursor
self.MapWindow.SetCursor(self.cursors["cross"])
if self.MapWindow == self.SrcMapWindow:
win = self.TgtMapWindow
elif self.MapWindow == self.TgtMapWindow:
win = self.SrcMapWindow
win.mouse['use'] = "zoom"
win.mouse['box'] = "box"
win.zoomtype = -1
win.pen = wx.Pen(colour='Red', width=2, style=wx.SHORT_DASH)
# change the cursor
win.SetCursor(self.cursors["cross"])
def OnZoomBack(self, event):
"""
Zoom last (previously stored position)
"""
self.MapWindow.ZoomBack()
def OnPan(self, event):
"""
Panning, set mouse to drag
"""
if self.toolbars['map']:
self.toolbars['map'].OnTool(event)
self.toolbars['map'].action['desc'] = ''
self.MapWindow.mouse['use'] = "pan"
self.MapWindow.mouse['box'] = "pan"
self.MapWindow.zoomtype = 0
# change the cursor
self.MapWindow.SetCursor(self.cursors["hand"])
if self.MapWindow == self.SrcMapWindow:
win = self.TgtMapWindow
elif self.MapWindow == self.TgtMapWindow:
win = self.SrcMapWindow
win.mouse['use'] = "pan"
win.mouse['box'] = "pan"
win.zoomtype = 0
# change the cursor
win.SetCursor(self.cursors["hand"])
def OnErase(self, event):
"""
Erase the canvas
"""
self.MapWindow.EraseMap()
if self.MapWindow == self.SrcMapWindow:
win = self.TgtMapWindow
elif self.MapWindow == self.TgtMapWindow:
win = self.SrcMapWindow
win.EraseMap()
def OnZoomRegion(self, event):
"""
Zoom to region
"""
self.Map.getRegion()
self.Map.getResolution()
self.UpdateMap()
# event.Skip()
def OnAlignRegion(self, event):
"""
Align region
"""
if not self.Map.alignRegion:
self.Map.alignRegion = True
else:
self.Map.alignRegion = False
# event.Skip()
def OnToggleRender(self, event):
"""
Enable/disable auto-rendering
"""
if self.statusbarWin['render'].GetValue():
self.OnRender(None)
def OnToggleShowRegion(self, event):
"""
Show/Hide extent in map canvas
"""
if self.statusbarWin['region'].GetValue():
# show extent
self.MapWindow.regionCoords = []
else:
del self.MapWindow.regionCoords
# redraw map if auto-rendering is enabled
if self.statusbarWin['render'].GetValue():
self.OnRender(None)
def OnToggleResolution(self, event):
"""
Use resolution of computation region settings
for redering image instead of display resolution
"""
# redraw map if auto-rendering is enabled
if self.statusbarWin['render'].GetValue():
self.OnRender(None)
def OnToggleStatus(self, event):
"""
Toggle status text
"""
self.StatusbarUpdate()
def OnChangeMapScale(self, event):
"""
Map scale changed by user
"""
scale = event.GetString()
try:
if scale[:2] != '1:':
raise ValueError
value = int(scale[2:])
except ValueError:
self.statusbarWin['mapscale'].SetValue('1:%ld' % int(self.mapScaleValue))
return
dEW = value * (self.Map.region['cols'] / self.ppm[0])
dNS = value * (self.Map.region['rows'] / self.ppm[1])
self.Map.region['n'] = self.Map.region['center_northing'] + dNS / 2.
self.Map.region['s'] = self.Map.region['center_northing'] - dNS / 2.
self.Map.region['w'] = self.Map.region['center_easting'] - dEW / 2.
self.Map.region['e'] = self.Map.region['center_easting'] + dEW / 2.
# add to zoom history
self.MapWindow.ZoomHistory(self.Map.region['n'], self.Map.region['s'],
self.Map.region['e'], self.Map.region['w'])
# redraw a map
self.MapWindow.UpdateMap()
self.statusbarWin['mapscale'].SetFocus()
def OnGoTo(self, event):
"""
Go to position
"""
#GCPNo = int(event.GetString())
GCPNo = self.statusbarWin['goto'].GetValue()
if GCPNo < 0 or GCPNo > len(self.mapcoordlist):
wx.MessageBox(parent=self,
message="%s 1 - %s." % (_("Valid Range:"),
len(self.mapcoordlist)),
caption=_("Invalid GCP Number"), style=wx.OK | wx.ICON_ERROR | wx.CENTRE)
return
if GCPNo == 0:
return
self.list.selectedkey = GCPNo
self.list.selected = self.list.FindItemData(-1, GCPNo)
self.list.render = False
self.list.SetItemState(self.list.selected,
wx.LIST_STATE_SELECTED,
wx.LIST_STATE_SELECTED)
self.list.render = True
# Source MapWindow:
begin = (self.mapcoordlist[GCPNo][1], self.mapcoordlist[GCPNo][2])
begin = self.SrcMapWindow.Cell2Pixel(begin)
end = begin
self.SrcMapWindow.Zoom(begin, end, 0)
# redraw map
self.SrcMapWindow.UpdateMap()
if self.show_target:
# Target MapWindow:
begin = (self.mapcoordlist[GCPNo][3], self.mapcoordlist[GCPNo][4])
begin = self.TgtMapWindow.Cell2Pixel(begin)
end = begin
self.TgtMapWindow.Zoom(begin, end, 0)
# redraw map
self.TgtMapWindow.UpdateMap()
self.statusbarWin['goto'].SetFocus()
def StatusbarUpdate(self):
"""!Update statusbar content"""
self.statusbarWin['region'].Hide()
self.statusbarWin['resolution'].Hide()
self.statusbarWin['mapscale'].Hide()
self.statusbarWin['goto'].Hide()
self.mapScaleValue = self.ppm = None
if self.statusbarWin['toggle'].GetSelection() == 0: # Coordinates
self.statusbar.SetStatusText("", 0)
# enable long help
self.StatusbarEnableLongHelp()
elif self.statusbarWin['toggle'].GetSelection() in (1, 2): # Extent
sel = self.statusbarWin['toggle'].GetSelection()
if sel == 1:
region = self.Map.region
else:
region = self.Map.GetRegion() # computation region
precision = int(UserSettings.Get(group = 'projection', key = 'format',
subkey = 'precision'))
format = UserSettings.Get(group = 'projection', key = 'format',
subkey = 'll')
if self.Map.projinfo['proj'] == 'll' and format == 'DMS':
w, s = utils.Deg2DMS(region["w"], region["s"],
string = False, precision = precision)
e, n = utils.Deg2DMS(region["e"], region["n"],
string = False, precision = precision)
if sel == 1:
self.statusbar.SetStatusText("%s - %s, %s - %s" %
(w, e, s, n), 0)
else:
ewres, nsres = utils.Deg2DMS(region['ewres'], region['nsres'],
string = False, precision = precision)
self.statusbar.SetStatusText("%s - %s, %s - %s (%s, %s)" %
(w, e, s, n, ewres, nsres), 0)
else:
w, s = region["w"], region["s"]
e, n = region["e"], region["n"]
if sel == 1:
self.statusbar.SetStatusText("%.*f - %.*f, %.*f - %.*f" %
(precision, w, precision, e,
precision, s, precision, n), 0)
else:
ewres, nsres = region['ewres'], region['nsres']
self.statusbar.SetStatusText("%.*f - %.*f, %.*f - %.*f (%.*f, %.*f)" %
(precision, w, precision, e,
precision, s, precision, n,
precision, ewres, precision, nsres), 0)
# enable long help
self.StatusbarEnableLongHelp()
elif self.statusbarWin['toggle'].GetSelection() == 3: # Show comp. extent
self.statusbar.SetStatusText("", 0)
self.statusbarWin['region'].Show()
# disable long help
self.StatusbarEnableLongHelp(False)
elif self.statusbarWin['toggle'].GetSelection() == 4: # Display mode
self.statusbar.SetStatusText("", 0)
self.statusbarWin['resolution'].Show()
# disable long help
self.StatusbarEnableLongHelp(False)
elif self.statusbarWin['toggle'].GetSelection() == 5: # Display geometry
self.statusbar.SetStatusText("rows=%d; cols=%d; nsres=%.2f; ewres=%.2f" %
(self.Map.region["rows"], self.Map.region["cols"],
self.Map.region["nsres"], self.Map.region["ewres"]), 0)
# enable long help
self.StatusbarEnableLongHelp()
elif self.statusbarWin['toggle'].GetSelection() == 6: # Map scale
# TODO: need to be fixed...
### screen X region problem
### user should specify ppm
dc = wx.ScreenDC()
dpSizePx = wx.DisplaySize() # display size in pixels
dpSizeMM = wx.DisplaySizeMM() # display size in mm (system)
dpSizeIn = (dpSizeMM[0] / 25.4, dpSizeMM[1] / 25.4) # inches
sysPpi = dc.GetPPI()
comPpi = (dpSizePx[0] / dpSizeIn[0],
dpSizePx[1] / dpSizeIn[1])
ppi = comPpi # pixel per inch
self.ppm = ((ppi[0] / 2.54) * 100, # pixel per meter
(ppi[1] / 2.54) * 100)
Debug.msg(4, "MapFrame.StatusbarUpdate(mapscale): size: px=%d,%d mm=%f,%f "
"in=%f,%f ppi: sys=%d,%d com=%d,%d; ppm=%f,%f" % \
(dpSizePx[0], dpSizePx[1], dpSizeMM[0], dpSizeMM[1],
dpSizeIn[0], dpSizeIn[1],
sysPpi[0], sysPpi[1], comPpi[0], comPpi[1],
self.ppm[0], self.ppm[1]))
region = self.Map.region
heightCm = region['rows'] / self.ppm[1] * 100
widthCm = region['cols'] / self.ppm[0] * 100
Debug.msg(4, "MapFrame.StatusbarUpdate(mapscale): width_cm=%f, height_cm=%f" %
(widthCm, heightCm))
xscale = (region['e'] - region['w']) / (region['cols'] / self.ppm[0])
yscale = (region['n'] - region['s']) / (region['rows'] / self.ppm[1])
scale = (xscale + yscale) / 2.
Debug.msg(3, "MapFrame.StatusbarUpdate(mapscale): xscale=%f, yscale=%f -> scale=%f" % \
(xscale, yscale, scale))
self.statusbar.SetStatusText("")
try:
self.statusbarWin['mapscale'].SetValue("1:%ld" % (scale + 0.5))
except TypeError:
pass
self.mapScaleValue = scale
self.statusbarWin['mapscale'].Show()
# disable long help
self.StatusbarEnableLongHelp(False)
elif self.statusbarWin['toggle'].GetSelection() == 7: # go to
self.statusbar.SetStatusText("")
max = self.list.GetItemCount()
if max < 1:
max = 1
self.statusbarWin['goto'].SetRange(0, max)
self.statusbarWin['goto'].Show()
# disable long help
self.StatusbarEnableLongHelp(False)
elif self.statusbarWin['toggle'].GetSelection() == 8: # RMS error
self.statusbar.SetStatusText(_("Forward: %(forw)s, Backward: %(back)s") %
{ 'forw' : self.fwd_rmserror,
'back' : self.bkw_rmserror })
# disable long help
# self.StatusbarEnableLongHelp(False)
else:
self.statusbar.SetStatusText("", 1)
def StatusbarEnableLongHelp(self, enable=True):
"""!Enable/disable toolbars long help"""
for toolbar in self.toolbars.itervalues():
if toolbar:
toolbar.EnableLongHelp(enable)
def StatusbarReposition(self):
"""!Reposition checkbox in statusbar"""
# reposition checkbox
widgets = [(0, self.statusbarWin['region']),
(0, self.statusbarWin['resolution']),
(0, self.statusbarWin['mapscale']),
(0, self.statusbarWin['progress']),
(0, self.statusbarWin['goto']),
(1, self.statusbarWin['toggle']),
(2, self.statusbarWin['mask']),
(3, self.statusbarWin['render'])]
for idx, win in widgets:
rect = self.statusbar.GetFieldRect(idx)
wWin, hWin = win.GetBestSize()
if idx == 0: # show region / mapscale / process bar
# -> size
if win == self.statusbarWin['progress']:
wWin = rect.width - 6
# -> position
# if win == self.statusbarWin['region']:
# x, y = rect.x + rect.width - wWin, rect.y - 1
# align left
# else:
x, y = rect.x + 3, rect.y - 1
w, h = wWin, rect.height + 2
else: # choice || auto-rendering
x, y = rect.x, rect.y - 1
w, h = rect.width, rect.height + 2
if idx == 1: # choice
h = hWin
elif idx == 2: # mask
x += 5
y += 4
elif idx == 3: # render
x += 5
win.SetPosition((x, y))
win.SetSize((w, h))
def SaveToFile(self, event):
"""!Save map to image
"""
img = self.MapWindow.img
if not img:
gcmd.GMessage(parent = self,
message = _("Nothing to render (empty map). Operation canceled."))
return
filetype, ltype = gdialogs.GetImageHandlers(img)
# get size
dlg = gdialogs.ImageSizeDialog(self)
dlg.CentreOnParent()
if dlg.ShowModal() != wx.ID_OK:
dlg.Destroy()
return
width, height = dlg.GetValues()
dlg.Destroy()
# get filename
dlg = wx.FileDialog(parent = self,
message = _("Choose a file name to save the image "
"(no need to add extension)"),
wildcard = filetype,
style=wx.SAVE | wx.FD_OVERWRITE_PROMPT)
if dlg.ShowModal() == wx.ID_OK:
path = dlg.GetPath()
if not path:
dlg.Destroy()
return
base, ext = os.path.splitext(path)
fileType = ltype[dlg.GetFilterIndex()]['type']
extType = ltype[dlg.GetFilterIndex()]['ext']
if ext != extType:
path = base + '.' + extType
self.MapWindow.SaveToFile(path, fileType,
width, height)
dlg.Destroy()
def PrintMenu(self, event):
"""
Print options and output menu for map display
"""
point = wx.GetMousePosition()
printmenu = wx.Menu()
# Add items to the menu
setup = wx.MenuItem(printmenu, wx.ID_ANY, _('Page setup'))
printmenu.AppendItem(setup)
self.Bind(wx.EVT_MENU, self.printopt.OnPageSetup, setup)
preview = wx.MenuItem(printmenu, wx.ID_ANY, _('Print preview'))
printmenu.AppendItem(preview)
self.Bind(wx.EVT_MENU, self.printopt.OnPrintPreview, preview)
doprint = wx.MenuItem(printmenu, wx.ID_ANY, _('Print display'))
printmenu.AppendItem(doprint)
self.Bind(wx.EVT_MENU, self.printopt.OnDoPrint, doprint)
# Popup the menu. If an item is selected then its handler
# will be called before PopupMenu returns.
self.PopupMenu(printmenu)
printmenu.Destroy()
def GetRender(self):
"""!Returns current instance of render.Map()
"""
return self.Map
def GetWindow(self):
"""!Get map window"""
return self.MapWindow
def FormatDist(self, dist):
"""!Format length numbers and units in a nice way,
as a function of length. From code by Hamish Bowman
Grass Development Team 2006"""
mapunits = self.Map.projinfo['units']
if mapunits == 'metres': mapunits = 'meters'
outunits = mapunits
dist = float(dist)
divisor = 1.0
# figure out which units to use
if mapunits == 'meters':
if dist > 2500.0:
outunits = 'km'
divisor = 1000.0
else: outunits = 'm'
elif mapunits == 'feet':
# nano-bug: we match any "feet", but US Survey feet is really
# 5279.9894 per statute mile, or 10.6' per 1000 miles. As >1000
# miles the tick markers are rounded to the nearest 10th of a
# mile (528'), the difference in foot flavours is ignored.
if dist > 5280.0:
outunits = 'miles'
divisor = 5280.0
else:
outunits = 'ft'
elif 'degree' in mapunits:
if dist < 1:
outunits = 'min'
divisor = (1/60.0)
else:
outunits = 'deg'
# format numbers in a nice way
if (dist/divisor) >= 2500.0:
outdist = round(dist/divisor)
elif (dist/divisor) >= 1000.0:
outdist = round(dist/divisor,1)
elif (dist/divisor) > 0.0:
outdist = round(dist/divisor,int(math.ceil(3-math.log10(dist/divisor))))
else:
outdist = float(dist/divisor)
return (outdist, outunits)
def OnZoomToMap(self, event):
"""!
Set display extents to match selected raster (including NULLs)
or vector map.
"""
self.MapWindow.ZoomToMap(layers = self.Map.GetListOfLayers())
def OnZoomToRaster(self, event):
"""!
Set display extents to match selected raster map (ignore NULLs)
"""
self.MapWindow.ZoomToMap(ignoreNulls = True)
def OnZoomToWind(self, event):
"""!Set display geometry to match computational region
settings (set with g.region)
"""
self.MapWindow.ZoomToWind()
def OnZoomToDefault(self, event):
"""!Set display geometry to match default region settings
"""
self.MapWindow.ZoomToDefault()
def OnZoomToSaved(self, event):
"""!Set display geometry to match extents in
saved region file
"""
self.MapWindow.ZoomToSaved()
def OnDisplayToWind(self, event):
"""!Set computational region (WIND file) to match display
extents
"""
self.MapWindow.DisplayToWind()
def SaveDisplayRegion(self, event):
"""!Save display extents to named region file.
"""
self.MapWindow.SaveDisplayRegion()
def OnZoomMenu(self, event):
"""!Popup Zoom menu
"""
point = wx.GetMousePosition()
zoommenu = wx.Menu()
# Add items to the menu
zoomwind = wx.MenuItem(zoommenu, wx.ID_ANY, _('Zoom to computational region (set with g.region)'))
zoommenu.AppendItem(zoomwind)
self.Bind(wx.EVT_MENU, self.OnZoomToWind, zoomwind)
zoomdefault = wx.MenuItem(zoommenu, wx.ID_ANY, _('Zoom to default region'))
zoommenu.AppendItem(zoomdefault)
self.Bind(wx.EVT_MENU, self.OnZoomToDefault, zoomdefault)
zoomsaved = wx.MenuItem(zoommenu, wx.ID_ANY, _('Zoom to saved region'))
zoommenu.AppendItem(zoomsaved)
self.Bind(wx.EVT_MENU, self.OnZoomToSaved, zoomsaved)
savewind = wx.MenuItem(zoommenu, wx.ID_ANY, _('Set computational region from display'))
zoommenu.AppendItem(savewind)
self.Bind(wx.EVT_MENU, self.OnDisplayToWind, savewind)
savezoom = wx.MenuItem(zoommenu, wx.ID_ANY, _('Save display geometry to named region'))
zoommenu.AppendItem(savezoom)
self.Bind(wx.EVT_MENU, self.SaveDisplayRegion, savezoom)
# Popup the menu. If an item is selected then its handler
# will be called before PopupMenu returns.
self.PopupMenu(zoommenu)
zoommenu.Destroy()
def SetProperties(self, render=False, mode=0, showCompExtent=False,
constrainRes=False, projection=False):
"""!Set properies of map display window"""
self.statusbarWin['render'].SetValue(render)
self.statusbarWin['toggle'].SetSelection(mode)
self.StatusbarUpdate()
self.statusbarWin['region'].SetValue(showCompExtent)
self.statusbarWin['resolution'].SetValue(constrainRes)
if showCompExtent:
self.MapWindow.regionCoords = []
def IsStandalone(self):
"""!Check if Map display is standalone"""
if self._layerManager:
return False
return True
def GetLayerManager(self):
"""!Get reference to Layer Manager
@return window reference
@return None (if standalone)
"""
return self._layerManager
# end of class MapFrame
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