[GRASS-SVN] r31711 - grass-addons/visualization/nviz2/wxpython
svn_grass at osgeo.org
svn_grass at osgeo.org
Sat Jun 14 09:25:36 EDT 2008
Author: martinl
Date: 2008-06-14 09:25:35 -0400 (Sat, 14 Jun 2008)
New Revision: 31711
Added:
grass-addons/visualization/nviz2/wxpython/mapdisp.py
Log:
nviz2: working copy of 'mapdisp' module added
Added: grass-addons/visualization/nviz2/wxpython/mapdisp.py
===================================================================
--- grass-addons/visualization/nviz2/wxpython/mapdisp.py (rev 0)
+++ grass-addons/visualization/nviz2/wxpython/mapdisp.py 2008-06-14 13:25:35 UTC (rev 31711)
@@ -0,0 +1,3577 @@
+"""
+MODULE: mapdisp.py
+
+CLASSES:
+ - Command
+ - BufferedWindow
+ - MapFrame
+ - MapApp
+
+PURPOSE: GIS map display canvas, with toolbar for various display
+ management functions, and second toolbar for vector
+ digitizing. Can be used either from GIS Manager or as p.mon backend
+
+ Usage:
+ python mapdisp.py monitor-identifier /path/to/command/file
+
+AUTHORS: Michael Barton
+ Jachym Cepicky
+ Martin Landa <landa.martin gmail.com>
+
+COPYRIGHT: (C) 2006-2008 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.
+"""
+
+import os
+import sys
+import time
+import glob
+import math
+import tempfile
+
+import wx
+import wx.aui
+from threading import Thread
+
+import globalvar
+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)
+
+import render
+import toolbars
+import grassenv
+import track
+import menuform
+import gselect
+import disp_print
+import gcmd
+import dbm
+import histogram
+import profile
+import globalvar
+import utils
+import gdialogs
+from vdigit import VDigitCategoryDialog as VDigitCategoryDialog
+from vdigit import VDigitZBulkDialog as VDigitZBulkDialog
+from vdigit import VDigitDuplicatesDialog as VDigitDuplicatesDialog
+from vdigit import GV_LINES as VDigit_Lines_Type
+from debug import Debug as Debug
+from icon import Icons as Icons
+from preferences import globalSettings as UserSettings
+
+import images
+imagepath = images.__path__[0]
+sys.path.append(imagepath)
+
+###
+### global variables
+###
+# for standalone app
+cmdfilename = None
+
+class Command(Thread):
+ """
+ Creates thread which will observe the command file and see, if
+ there is new command to be executed
+ """
+ def __init__ (self, parent, Map):
+ Thread.__init__(self)
+
+ global cmdfilename
+
+ self.parent = parent
+ self.map = Map
+ self.cmdfile = open(cmdfilename, "r")
+
+ def run(self):
+ """
+ Run this in thread
+ """
+ dispcmd = []
+ while 1:
+ self.parent.redraw = False
+ line = self.cmdfile.readline().strip()
+ if line == "quit":
+ break
+
+ if line:
+ try:
+ Debug.msg (3, "Command.run(): cmd=%s" % (line))
+
+ self.map.AddLayer(item=None, type="raster",
+ name='',
+ command=line,
+ l_opacity=1)
+
+ self.parent.redraw =True
+
+ except Exception, e:
+ print "Command Thread: ",e
+
+ time.sleep(0.1)
+
+ sys.exit()
+
+class BufferedWindow(wx.Window):
+ """
+ A Buffered window class.
+
+ When the drawing needs to change, you app needs to call the
+ UpdateMap() method. Since the drawing is stored in a bitmap, you
+ can also save the drawing to file by calling the
+ SaveToFile(self,file_name,file_type) method.
+ """
+
+ def __init__(self, parent, id,
+ pos = wx.DefaultPosition,
+ size = wx.DefaultSize,
+ style=wx.NO_FULL_REPAINT_ON_RESIZE,
+ Map=None, tree=None, gismgr=None):
+
+ wx.Window.__init__(self, parent, id, pos, size, style)
+ self.parent = parent
+ self.Map = Map
+ self.tree = tree
+ self.gismanager = gismgr
+
+ #
+ # Flags
+ #
+ self.resize = False # indicates whether or not a resize event has taken place
+ self.dragimg = None # initialize variable for map panning
+
+ #
+ # Variable for drawing on DC
+ #
+ self.pen = None # pen for drawing zoom boxes, etc.
+ self.polypen = None # pen for drawing polylines (measurements, profiles, etc)
+ # List of wx.Point tuples defining a polyline (geographical coordinates)
+ self.polycoords = []
+ # ID of rubber band line
+ self.lineid = None
+ # ID of poly line resulting from cumulative rubber band lines (e.g. measurement)
+ self.plineid = None
+
+ #
+ # Event bindings
+ #
+ self.Bind(wx.EVT_PAINT, self.OnPaint)
+ self.Bind(wx.EVT_SIZE, self.OnSize)
+ self.Bind(wx.EVT_IDLE, self.OnIdle)
+ self.Bind(wx.EVT_MOTION, self.MouseActions)
+ self.Bind(wx.EVT_MOUSE_EVENTS, self.MouseActions)
+
+ #
+ # Render output objects
+ #
+ self.mapfile = None # image file to be rendered
+ self.img = "" # wx.Image object (self.mapfile)
+ # used in digitization tool (do not redraw vector map)
+ self.imgVectorMap = None
+ # decoration overlays
+ self.overlays = {}
+ # images and their PseudoDC ID's for painting and dragging
+ self.imagedict = {}
+ self.select = {} # selecting/unselecting decorations for dragging
+ self.textdict = {} # text, font, and color indexed by id
+ self.currtxtid = None # PseudoDC id for currently selected text
+
+ #
+ # Zoom objects
+ #
+ self.zoomhistory = [] # list of past zoom extents
+ self.currzoom = 0 # current set of extents in zoom history being used
+
+ #
+ # mouse attributes like currently pressed buttons, position on
+ # the screen, begin and end of dragging, and type of drawing
+ #
+ self.mouse = {
+ 'l' : False,
+ 'r' : False,
+ 'm' : False,
+ 'begin': [0, 0], # screen coordinates
+ 'end' : [0, 0],
+ 'use' : "pointer",
+ 'box' : "point"
+ }
+
+ self.zoomtype = 1 # 1 zoom in, 0 no zoom, -1 zoom out
+ self.hitradius = 10 # distance for selecting map decorations
+ self.dialogOffset = 5 # offset for dialog (e.g. DisplayAttributesDialog)
+
+ # OnSize called to make sure the buffer is initialized.
+ # This might result in OnSize getting called twice on some
+ # platforms at initialization, but little harm done.
+ ### self.OnSize(None)
+
+ # create PseudoDC used for background map, map decorations like scales and legends
+ self.pdc = wx.PseudoDC()
+ # used for digitization tool
+ self.pdcVector = None
+ # pseudoDC for temporal objects (select box, measurement tool, etc.)
+ self.pdcTmp = wx.PseudoDC()
+ # redraw all pdc's, pdcTmp layer is redrawn always (speed issue)
+ self.redrawAll = True
+
+ # will store an off screen empty bitmap for saving to file
+ self._buffer = ''
+
+ self.Bind(wx.EVT_ERASE_BACKGROUND, lambda x:None)
+
+ # vars for handling mouse clicks
+ self.dragid = -1
+ self.lastpos = (0, 0)
+
+ def Draw(self, pdc, img=None, drawid=None, pdctype='image', coords=[0, 0, 0, 0]):
+ """
+ Draws map and overlay decorations
+ """
+ if drawid == None:
+ if pdctype == 'image' and img:
+ drawid = self.imagedict[img]
+ elif pdctype == 'clear':
+ drawid == None
+ else:
+ drawid = wx.NewId()
+
+ if img and pdctype == 'image':
+ # self.imagedict[img]['coords'] = coords
+ self.select[self.imagedict[img]['id']] = False # ?
+
+ pdc.BeginDrawing()
+
+ if drawid != 99:
+ bg = wx.TRANSPARENT_BRUSH
+ else:
+ bg = wx.Brush(self.GetBackgroundColour())
+
+ pdc.SetBackground(bg)
+ #pdc.Clear()
+ self.Refresh()
+
+ Debug.msg (5, "BufferedWindow.Draw(): id=%s, pdctype=%s, coord=%s" % \
+ (drawid, pdctype, coords))
+
+ # set PseudoDC id
+ if drawid is not None:
+ pdc.SetId(drawid)
+
+ if pdctype == 'clear': # erase the display
+ bg = wx.WHITE_BRUSH
+ # bg = wx.Brush(self.GetBackgroundColour())
+ pdc.SetBackground(bg)
+ pdc.Clear()
+ self.Refresh()
+ pdc.EndDrawing()
+ return
+
+ if pdctype == 'image': # draw selected image
+ bitmap = wx.BitmapFromImage(img)
+ w,h = bitmap.GetSize()
+ pdc.DrawBitmap(bitmap, coords[0], coords[1], True) # draw the composite map
+ pdc.SetIdBounds(drawid, (coords[0],coords[1], w, h))
+
+ elif pdctype == 'box': # draw a box on top of the map
+ if self.pen:
+ pdc.SetBrush(wx.Brush(wx.CYAN, wx.TRANSPARENT))
+ pdc.SetPen(self.pen)
+ x2 = max(coords[0],coords[2])
+ x1 = min(coords[0],coords[2])
+ y2 = max(coords[1],coords[3])
+ y1 = min(coords[1],coords[3])
+ rwidth = x2-x1
+ rheight = y2-y1
+ rect = wx.Rect(x1,y1,rwidth,rheight)
+ pdc.DrawRectangleRect(rect)
+ pdc.SetIdBounds(drawid,rect)
+ # self.ovlcoords[drawid] = coords
+
+ elif pdctype == 'line': # draw a line on top of the map
+ if self.pen:
+ pdc.SetBrush(wx.Brush(wx.CYAN, wx.TRANSPARENT))
+ pdc.SetPen(self.pen)
+ pdc.DrawLine(coords[0], coords[1], coords[2], coords[3])
+ pdc.SetIdBounds(drawid,(coords[0], coords[1], coords[2], coords[3]))
+ # self.ovlcoords[drawid] = coords
+
+ elif pdctype == 'polyline': # draw a polyline on top of the map
+ if self.polypen:
+ pdc.SetBrush(wx.Brush(wx.CYAN, wx.TRANSPARENT))
+ pdc.SetPen(self.polypen)
+ pdc.DrawLines(coords)
+
+ # get bounding rectangle for polyline
+ xlist = []
+ ylist = []
+ if len(coords) > 0:
+ for point in coords:
+ x,y = point
+ xlist.append(x)
+ ylist.append(y)
+ x1=min(xlist)
+ x2=max(xlist)
+ y1=min(ylist)
+ y2=max(ylist)
+ pdc.SetIdBounds(drawid,(x1,y1,x2,y2))
+ # self.ovlcoords[drawid] = [x1,y1,x2,y2]
+
+ elif pdctype == 'point': # draw point
+ if self.pen:
+ pdc.SetPen(self.pen)
+ pdc.DrawPoint(coords[0], coords[1])
+ coordsBound = (coords[0] - 5,
+ coords[1] - 5,
+ coords[0] + 5,
+ coords[1] + 5)
+ pdc.SetIdBounds(drawid, coordsBound)
+ # self.ovlcoords[drawid] = coords
+
+ elif pdctype == 'text': # draw text on top of map
+ text = img[0]
+ rotation = float(img[3])
+ w, h = self.GetFullTextExtent(img[0])[0:2]
+ pdc.SetFont(img[1])
+ pdc.SetTextForeground(img[2])
+ coords, w, h = self.TextBounds(img, coords)
+ if rotation == 0:
+ pdc.DrawText(img[0], coords[0], coords[1])
+ else:
+ pdc.DrawRotatedText(img[0], coords[0], coords[1], rotation)
+ pdc.SetIdBounds(drawid, (coords[0], coords[1], w, h))
+ # self.ovlcoords[drawid] = coords
+
+ pdc.EndDrawing()
+ self.Refresh()
+
+ return drawid
+
+ def TextBounds(self, textinfo, coords):
+ """
+ Return text boundary data
+
+ @param textinfo text metadata (text, font, color, rotation)
+ @param coords reference point
+ """
+ rotation = float(textinfo[3])
+
+ Debug.msg (4, "BufferedWindow.TextBounds(): text=%s, rotation=%f" % \
+ (textinfo[0], rotation))
+
+ self.Update()
+ self.Refresh()
+
+ self.SetFont(textinfo[1])
+
+ w, h = self.GetTextExtent(textinfo[0])
+
+ if rotation == 0:
+ coords[2], coords[3] = coords[0] + w, coords[1] + h
+ return coords, w, h
+
+ boxh = math.fabs(math.sin(math.radians(rotation)) * w) + h
+ boxw = math.fabs(math.cos(math.radians(rotation)) * w) + h
+ coords[2] = coords[0] + boxw
+ coords[3] = coords[1] + boxh
+
+ return coords, boxw, boxh
+
+ def OnPaint(self, event):
+ """
+ Draw PseudoDC's to buffered paint DC
+
+ self.pdc for background and decorations
+ self.pdcVector for vector map which is edited
+ self.pdcTmp for temporaly drawn objects (self.polycoords)
+
+ If self.redrawAll is False on self.pdcTmp content is re-drawn
+ """
+
+ Debug.msg(4, "BufferedWindow.OnPaint(): redrawAll=%s" % self.redrawAll)
+
+ dc = wx.BufferedPaintDC(self, self.buffer)
+
+ # we need to clear the dc BEFORE calling PrepareDC
+ #bg = wx.Brush(self.GetBackgroundColour())
+ dc.SetBackground(wx.Brush("White"))
+ dc.Clear()
+
+ # use PrepareDC to set position correctly
+ self.PrepareDC(dc)
+
+ # create a clipping rect from our position and size
+ # and update region
+ rgn = self.GetUpdateRegion().GetBox()
+ dc.SetClippingRect(rgn)
+
+ if self.redrawAll: # redraw pdc and pdcVector
+ # draw to the dc using the calculated clipping rect
+ self.pdc.DrawToDCClipped(dc, rgn)
+
+ # draw vector map layer
+ if self.pdcVector:
+ self.pdcVector.DrawToDCClipped(dc, rgn)
+
+ self.bufferLast = None
+ else: # do not redraw pdc and pdcVector
+ if self.bufferLast is None:
+ # draw to the dc
+ self.pdc.DrawToDC(dc)
+
+ if self.pdcVector:
+ self.pdcVector.DrawToDC(dc)
+
+ # store buffered image
+ # self.bufferLast = wx.BitmapFromImage(self.buffer.ConvertToImage())
+ self.bufferLast = dc.GetAsBitmap(wx.Rect(0, 0, self.Map.width, self.Map.height))
+
+ pdcLast = wx.PseudoDC()
+ pdcLast.DrawBitmap(bmp=self.bufferLast, x=0, y=0)
+ pdcLast.DrawToDC(dc)
+
+ # draw temporary object on the foreground
+ # self.pdcTmp.DrawToDCClipped(dc, rgn)
+ self.pdcTmp.DrawToDC(dc)
+
+ def OnSize(self, event):
+ """
+ Scale map image so that it is
+ the same size as the Window
+ """
+
+ Debug.msg(3, "BufferedWindow.OnSize():")
+
+ # set size of the input image
+ self.Map.ChangeMapSize(self.GetClientSize())
+ # align extent based on center point and display resolution
+ # this causes that image is not resized when display windows is resized
+ # self.Map.AlignExtentFromDisplay()
+
+ # Make new off screen bitmap: this bitmap will always have the
+ # current drawing in it, so it can be used to save the image to
+ # a file, or whatever.
+ self.buffer = wx.EmptyBitmap(max(1, self.Map.width), max(1, self.Map.height))
+
+ # get the image to be rendered
+ self.img = self.GetImage()
+
+ # update map display
+ if self.img and self.Map.width + self.Map.height > 0: # scale image during resize
+ self.img = self.img.Scale(self.Map.width, self.Map.height)
+ if len(self.Map.GetListOfLayers()) > 0:
+ self.UpdateMap()
+
+ # re-render image on idle
+ self.resize = True
+
+ # reposition checkbox in statusbar
+ self.parent.StatusbarReposition()
+
+ # update statusbar
+ self.parent.StatusbarUpdate()
+
+ def OnIdle(self, event):
+ """
+ Only re-render a composite map image from GRASS during
+ idle time instead of multiple times during resizing.
+ """
+ if self.resize:
+ self.UpdateMap(render=True)
+
+ event.Skip()
+
+ def SaveToFile(self, FileName, FileType):
+ """
+ This draws the psuedo DC to a buffer that
+ can be saved to a file.
+ """
+ dc = wx.BufferedPaintDC(self, self.buffer)
+ self.pdc.DrawToDC(dc)
+ if self.pdcVector:
+ self.pdcVector.DrawToDC(dc)
+ self.buffer.SaveFile(FileName, FileType)
+
+ def GetOverlay(self):
+ """
+ Converts rendered overlay files to wx.Image
+
+ Updates self.imagedict
+
+ @return list of images
+ """
+ imgs = []
+ for overlay in self.Map.GetListOfLayers(l_type="overlay", l_active=True):
+ if os.path.isfile(overlay.mapfile) and os.path.getsize(overlay.mapfile):
+ img = wx.Image(overlay.mapfile, wx.BITMAP_TYPE_ANY)
+ self.imagedict[img] = { 'id' : overlay.id,
+ 'layer' : overlay }
+ imgs.append(img)
+
+ return imgs
+
+ def GetImage(self):
+ """
+ Converts redered map files to wx.Image
+
+ Updates self.imagedict (id=99)
+
+ @return wx.Image instance (map composition)
+ """
+ imgId = 99
+ if self.Map.mapfile and os.path.isfile(self.Map.mapfile) and \
+ os.path.getsize(self.Map.mapfile):
+ img = wx.Image(self.Map.mapfile, wx.BITMAP_TYPE_ANY)
+ else:
+ img = None
+
+ self.imagedict[img] = { 'id': imgId }
+
+ return img
+
+ def UpdateMap(self, render=True, renderVector=True):
+ """
+ Updates the canvas anytime there is a change to the underlaying images
+ or to the geometry of the canvas.
+
+ @param render re-render map composition
+ @param renderVector re-render vector map layer enabled for editing (used for digitizer)
+ """
+
+ start = time.clock()
+
+ self.resize = False
+
+ # if len(self.Map.GetListOfLayers()) == 0:
+ # return False
+
+ if self.img is None:
+ render = True
+
+ #
+ # initialize process bar (only on 'render')
+ #
+ if render is True or renderVector is True:
+ self.parent.onRenderGauge.Show()
+ if self.parent.onRenderGauge.GetRange() > 0:
+ self.parent.onRenderGauge.SetValue(1)
+ self.parent.onRenderTimer.Start(100)
+ self.parent.onRenderCounter = 0
+
+ #
+ # render background image if needed
+ #
+ if render:
+ self.Map.ChangeMapSize(self.GetClientSize())
+ windres = False
+ if self.parent.compResolution.GetValue():
+ # use computation region resolution for rendering
+ windres = True
+ self.mapfile = self.Map.Render(force=True, mapWindow=self.parent, windres=windres)
+ else:
+ self.mapfile = self.Map.Render(force=False, mapWindow=self.parent)
+
+ self.img = self.GetImage() # id=99
+
+ #
+ # clear pseudoDcs
+ #
+ self.pdc.Clear()
+ self.pdc.RemoveAll()
+ self.pdcTmp.Clear()
+ self.pdcTmp.RemoveAll()
+
+ #
+ # draw background map image to PseudoDC
+ #
+ if not self.img:
+ self.Draw(self.pdc, pdctype='clear')
+ else:
+ try:
+ id = self.imagedict[self.img]['id']
+ except:
+ return False
+
+ self.Draw(self.pdc, self.img, drawid=id)
+
+ #
+ # render vector map layer
+ #
+ digitToolbar = self.parent.toolbars['vdigit']
+ if renderVector and digitToolbar and \
+ digitToolbar.layerSelectedID != None:
+ # set region
+ self.parent.digit.driver.UpdateRegion()
+ # re-calculate threshold for digitization tool
+ self.parent.digit.driver.GetThreshold()
+ # draw map
+ self.pdcVector.Clear()
+ self.pdcVector.RemoveAll()
+ self.parent.digit.driver.DrawMap()
+
+ #
+ # render overlays
+ #
+ for img in self.GetOverlay():
+ # draw any active and defined overlays
+ if self.imagedict[img]['layer'].IsActive():
+ id = self.imagedict[img]['id']
+ self.Draw(self.pdc, img=img, drawid=id,
+ pdctype=self.overlays[id]['pdcType'], coords=self.overlays[id]['coords'])
+
+ for id in self.textdict.keys():
+ self.Draw(self.pdc, img=self.textdict[id], drawid=id,
+ pdctype='text', coords=[10, 10, 10, 10])
+
+ self.DrawCompRegionExtent()
+
+ #
+ # redraw pdcTmp if needed
+ #
+ if len(self.polycoords) > 0:
+ self.DrawLines(self.pdcTmp)
+ if self.parent.gismanager.georectifying:
+ # -> georectifier (redraw GCPs)
+ if self.parent.toolbars['georect']:
+ coordtype = 'gcpcoord'
+ else:
+ coordtype = 'mapcoord'
+ self.parent.gismanager.georectifying.DrawGCP(coordtype)
+
+ stop = time.clock()
+
+ #
+ # hide process bar
+ #
+ if self.parent.onRenderGauge.GetRange() > 0:
+ self.parent.onRenderTimer.Stop()
+ self.parent.onRenderGauge.Hide()
+
+ #
+ # update statusbar
+ #
+ ### self.Map.SetRegion()
+ self.parent.StatusbarUpdate()
+
+ Debug.msg (2, "BufferedWindow.UpdateMap(): render=%s, renderVector=%s -> time=%g" % \
+ (render, renderVector, (stop-start)))
+
+ return True
+
+ def DrawCompRegionExtent(self):
+ """Draw computational region extent in the display
+
+ Display region is drawn as a blue box inside the computational region,
+ computational region inside a display region as a red box).
+ """
+ if hasattr(self, "regionCoords"):
+ compReg = self.Map.GetRegion()
+ dispReg = self.Map.GetCurrentRegion()
+ reg = None
+ if self.IsInRegion(dispReg, compReg):
+ self.polypen = wx.Pen(colour='blue', width=3, style=wx.SOLID)
+ reg = dispReg
+ else:
+ self.polypen = wx.Pen(colour='red', width=3, style=wx.SOLID)
+ reg = compReg
+
+ self.regionCoords = []
+ self.regionCoords.append((reg['w'], reg['n']))
+ self.regionCoords.append((reg['e'], reg['n']))
+ self.regionCoords.append((reg['e'], reg['s']))
+ self.regionCoords.append((reg['w'], reg['s']))
+ self.regionCoords.append((reg['w'], reg['n']))
+ # draw region extent
+ self.DrawLines(pdc=self.pdcTmp, polycoords=self.regionCoords)
+
+ def IsInRegion(self, region, refRegion):
+ """Test if 'region' is inside of 'refRegion'
+
+ @param region input region
+ @param refRegion reference region (e.g. computational region)
+
+ @return True if region is inside of refRegion
+ @return False
+ """
+ if region['s'] >= refRegion['s'] and \
+ region['n'] <= refRegion['n'] and \
+ region['w'] >= refRegion['w'] and \
+ region['e'] <= refRegion['e']:
+ return True
+
+ return False
+
+ def EraseMap(self):
+ """
+ Erase the map display
+ """
+ self.Draw(self.pdc, pdctype='clear')
+
+ def DragMap(self, moveto):
+ """
+ Drag the entire map image for panning.
+ """
+
+ dc = wx.BufferedDC(wx.ClientDC(self))
+ dc.SetBackground(wx.Brush("White"))
+ dc.Clear()
+
+ self.dragimg = wx.DragImage(self.buffer)
+ self.dragimg.BeginDrag((0, 0), self)
+ self.dragimg.GetImageRect(moveto)
+ self.dragimg.Move(moveto)
+
+ self.dragimg.DoDrawImage(dc, moveto)
+ self.dragimg.EndDrag()
+
+ return True
+
+ def DragItem(self, id, event):
+ """
+ Drag an overlay decoration item
+ """
+ Debug.msg (5, "BufferedWindow.DragItem(): id=%d" % \
+ id)
+ x, y = self.lastpos
+ dx = event.GetX() - x
+ dy = event.GetY() - y
+ self.pdc.SetBackground(wx.Brush(self.GetBackgroundColour()))
+ r = self.pdc.GetIdBounds(id)
+ if self.dragid > 100: # text dragging
+ rtop = (r[0],r[1]-r[3],r[2],r[3])
+ r = r.Union(rtop)
+ rleft = (r[0]-r[2],r[1],r[2],r[3])
+ r = r.Union(rleft)
+ self.pdc.TranslateId(id, dx, dy)
+ r2 = self.pdc.GetIdBounds(id)
+ r = r.Union(r2)
+ r.Inflate(4,4)
+
+ self.Update()
+ self.RefreshRect(r, False)
+ self.lastpos = (event.GetX(), event.GetY())
+
+ def MouseDraw(self, pdc=None, begin=None, end=None):
+ """
+ Mouse box or line from 'begin' to 'end'
+
+ If not given from self.mouse['begin'] to self.mouse['end'].
+
+ """
+ self.redrawAll = False
+
+ if not pdc:
+ return
+
+ if begin is None:
+ begin = self.mouse['begin']
+ if end is None:
+ end = self.mouse['end']
+
+ Debug.msg (5, "BufferedWindow.MouseDraw(): use=%s, box=%s, begin=%f,%f, end=%f,%f" % \
+ (self.mouse['use'], self.mouse['box'],
+ begin[0], begin[1], end[0], end[1]))
+
+ if self.mouse['box'] == "box":
+ boxid = wx.ID_NEW
+ mousecoords = [begin[0], begin[1],
+ end[0], end[1]]
+ r = pdc.GetIdBounds(boxid)
+ r.Inflate(4,4)
+ pdc.ClearId(boxid)
+ self.RefreshRect(r, False)
+ pdc.SetId(boxid)
+ self.Draw(pdc, drawid=boxid, pdctype='box', coords=mousecoords)
+ elif self.mouse['box'] == "line":
+ self.lineid = wx.ID_NEW
+ mousecoords = [begin[0], begin[1], \
+ end[0], end[1]]
+ x1=min(begin[0],end[0])
+ x2=max(begin[0],end[0])
+ y1=min(begin[1],end[1])
+ y2=max(begin[1],end[1])
+ r = wx.Rect(x1,y1,x2-x1,y2-y1)
+ r.Inflate(4,4)
+ try:
+ pdc.ClearId(self.lineid)
+ except:
+ pass
+ self.RefreshRect(r, False)
+ pdc.SetId(self.lineid)
+
+ self.Draw(pdc, drawid=self.lineid, pdctype='line', coords=mousecoords)
+
+ def DrawLines(self, pdc=None, polycoords=None):
+ """Draw polyline in PseudoDC
+
+ Set self.pline to wx.NEW_ID + 1
+
+ polycoords - list of polyline vertices, geographical coordinates
+ (if not given, self.polycoords is used)
+
+ """
+
+ if not pdc:
+ pdc = self.pdcTmp
+
+ if not polycoords:
+ polycoords = self.polycoords
+
+ if len(polycoords) > 0:
+ self.plineid = wx.ID_NEW + 1
+ # convert from EN to XY
+ coords = []
+ for p in polycoords:
+ coords.append(self.Cell2Pixel(p))
+
+ self.Draw(pdc, drawid=self.plineid, pdctype='polyline', coords=coords)
+
+ Debug.msg (4, "BufferedWindow.DrawLines(): coords=%s, id=%s" % \
+ (coords, self.plineid))
+
+ return self.plineid
+
+ return -1
+
+ def DrawCross(self, pdc, coords, size, rotation=0,
+ text=None, textAlign='lr', textOffset=(5, 5)):
+ """Draw cross in PseudoDC
+
+ @todo implement rotation
+
+ @param pdc PseudoDC
+ @param coord center coordinates
+ @param rotation rotate symbol
+ @param text draw also text (text, font, color, rotation)
+ @param textAlign alignment (default 'lower-right')
+ @textOffset offset for text (from center point)
+ """
+ Debug.msg(4, "BufferedWindow.DrawCross(): pdc=%s, coords=%s, size=%d" % \
+ (pdc, coords, size))
+ coordsCross = ((coords[0] - size, coords[1], coords[0] + size, coords[1]),
+ (coords[0], coords[1] - size, coords[0], coords[1] + size))
+
+ self.lineid = wx.NewId()
+ for lineCoords in coordsCross:
+ self.Draw(pdc, drawid=self.lineid, pdctype='line', coords=lineCoords)
+
+ if not text:
+ return self.lineid
+
+ if textAlign == 'ul':
+ coord = [coords[0] - textOffset[0], coords[1] - textOffset[1], 0, 0]
+ elif textAlign == 'ur':
+ coord = [coords[0] + textOffset[0], coords[1] - textOffset[1], 0, 0]
+ elif textAlign == 'lr':
+ coord = [coords[0] + textOffset[0], coords[1] + textOffset[1], 0, 0]
+ else:
+ coord = [coords[0] - textOffset[0], coords[1] + textOffset[1], 0, 0]
+
+ self.Draw(pdc, img=text,
+ pdctype='text', coords=coord)
+
+ return self.lineid
+
+ def MouseActions(self, event):
+ """
+ Mouse motion and button click notifier
+ """
+ if self.redrawAll is False:
+ self.redrawAll = True
+
+ wheel = event.GetWheelRotation()
+ # zoom with mouse wheel
+ if wheel != 0:
+ current = event.GetPositionTuple()[:]
+ Debug.msg (5, "BufferedWindow.MouseAction(): wheel=%d" % wheel)
+ # zoom 1/2 of the screen, centered to current mouse position (TODO: settings)
+ begin = (current[0] - self.Map.width / 4,
+ current[1] - self.Map.height / 4)
+ end = (current[0] + self.Map.width / 4,
+ current[1] + self.Map.height / 4)
+
+ if wheel > 0:
+ zoomtype = 1
+ else:
+ zoomtype = -1
+
+ # zoom
+ self.Zoom(begin, end, zoomtype)
+
+ # redraw map
+ self.UpdateMap()
+
+ self.OnPaint(None)
+
+ # update statusbar
+ self.parent.StatusbarUpdate()
+
+ # left mouse button pressed
+ elif event.LeftDown():
+ self.OnLeftDown(event)
+
+ # left mouse button released
+ elif event.LeftUp():
+ self.OnLeftUp(event)
+
+ # dragging
+ elif event.Dragging():
+ Debug.msg (5, "BufferedWindow.MouseAction(): Dragging")
+ current = event.GetPositionTuple()[:]
+ previous = self.mouse['begin']
+ move = (current[0] - previous[0],
+ current[1] - previous[1])
+
+ # dragging or drawing box with left button
+ if self.mouse['use'] == 'pan':
+ self.DragMap(move)
+
+ # dragging decoration overlay item
+ elif (self.mouse['use'] == 'pointer' and not self.parent.toolbars['vdigit']) and \
+ self.dragid != None and \
+ self.dragid != 99:
+ self.DragItem(self.dragid, event)
+
+ # dragging anything else - rubber band box or line
+ else:
+ self.mouse['end'] = event.GetPositionTuple()[:]
+ if event.LeftIsDown():
+ # draw box only when left mouse button is pressed
+ self.MouseDraw(pdc=self.pdcTmp)
+
+ # double click
+ elif event.ButtonDClick():
+ self.OnButtonDClick(event)
+
+ # middle mouse button pressed
+ elif event.MiddleDown():
+ self.OnMiddleDown(event)
+
+ # right mouse button pressed
+ elif event.RightDown():
+ self.OnRightDown(event)
+
+ # right mouse button released
+ elif event.RightUp():
+ self.OnRightUp(event)
+
+ elif event.Moving():
+ self.OnMouseMoving(event)
+ event.Skip()
+
+ def OnLeftDown(self, event):
+ """
+ Left mouse button pressed
+ """
+ Debug.msg (5, "BufferedWindow.OnLeftDown(): use=%s" % \
+ self.mouse["use"])
+
+ self.mouse['begin'] = event.GetPositionTuple()[:]
+
+ if self.mouse["use"] in ["measure", "profile"]:
+ # measure or profile
+ if len(self.polycoords) == 0:
+ self.mouse['end'] = self.mouse['begin']
+ self.polycoords.append(self.Pixel2Cell(self.mouse['begin']))
+ self.ClearLines(pdc=self.pdcTmp)
+ else:
+ self.mouse['begin'] = self.mouse['end']
+ elif self.mouse['use'] == 'zoom':
+ pass
+ elif self.mouse["use"] == "pointer" and self.parent.toolbars['vdigit']:
+ # digitization
+ digitToolbar = self.parent.toolbars['vdigit']
+ digitClass = self.parent.digit
+ east, north = self.Pixel2Cell(self.mouse['begin'])
+
+ try:
+ map = digitToolbar.layers[digitToolbar.layerSelectedID].name
+ except:
+ map = None
+ dlg = wx.MessageDialog(self, _("No vector map selected for editing."),
+ _("Error"), wx.OK | wx.ICON_ERROR)
+ dlg.ShowModal()
+ dlg.Destroy()
+ event.Skip()
+ return
+
+ # calculate position of 'update record' dialog
+ position = self.mouse['begin']
+ posWindow = self.ClientToScreen((position[0] + self.dialogOffset,
+ position[1] + self.dialogOffset))
+
+ if digitToolbar.action not in ["moveVertex", "addVertex",
+ "removeVertex", "editLine"]:
+ # set pen
+ self.pen = wx.Pen(colour='Red', width=2, style=wx.SHORT_DASH)
+ self.polypen = wx.Pen(colour='dark green', width=2, style=wx.SOLID)
+
+ if digitToolbar.action == "addLine":
+ if digitToolbar.type in ["point", "centroid"]:
+ # add new point
+ if digitToolbar.type == 'point':
+ point = True
+ else:
+ point = False
+
+ digitClass.AddPoint(map, point, east, north)
+
+ self.UpdateMap(render=False) # redraw map
+
+ # add new record into atribute table
+ if UserSettings.Get(group='vdigit', key="addRecord", subkey='enabled') is True:
+ # select attributes based on layer and category
+ cats = {}
+ cats[UserSettings.Get(group='vdigit', key="layer", subkey='value')] = \
+ (UserSettings.Get(group='vdigit', key="category", subkey='value'), )
+ addRecordDlg = dbm.DisplayAttributesDialog(parent=self, map=map,
+ cats=cats,
+ pos=posWindow,
+ action="add")
+ if addRecordDlg.mapDBInfo and \
+ addRecordDlg.ShowModal() == wx.ID_OK:
+ sqlfile = tempfile.NamedTemporaryFile(mode="w")
+ for sql in addRecordDlg.GetSQLString():
+ sqlfile.file.write(sql + ";\n")
+ sqlfile.file.flush()
+ executeCommand = gcmd.Command(cmd=["db.execute",
+ "--q",
+ "input=%s" % sqlfile.name])
+
+ elif digitToolbar.type in ["line", "boundary"]:
+ # add new point to the line
+ self.polycoords.append(self.Pixel2Cell(event.GetPositionTuple()[:]))
+ self.DrawLines(pdc=self.pdcTmp)
+
+ elif digitToolbar.action == "editLine" and hasattr(self, "moveIds"):
+ self.polycoords.append(self.Pixel2Cell(self.mouse['begin']))
+ self.moveIds.append(wx.NewId())
+ self.DrawLines(pdc=self.pdcTmp)
+
+ elif digitToolbar.action == "deleteLine":
+ pass
+
+ elif digitToolbar.action in ["moveLine", "moveVertex", "editLine"] and \
+ not hasattr(self, "moveBegin"):
+ # incremental value
+ self.moveBegin = [0, 0]
+ # geographic coordinates of initial position (self.mouse['end'])
+ self.moveCoords = []
+ # list of ids to modify
+ self.moveIds = []
+ if digitToolbar.action in ["moveVertex", "editLine"]:
+ # set pen
+ self.pen = self.polypen = wx.Pen(colour=UserSettings.Get(group='vdigit', key="symbolHighlight", subkey='color'),
+ width=2, style=wx.SHORT_DASH)
+ self.pdcTmp.SetPen(self.polypen)
+
+ elif digitToolbar.action == "splitLine":
+ pass
+
+ elif digitToolbar.action in ["displayAttrs", "displayCats"]:
+ qdist = digitClass.driver.GetThreshold(type='selectThresh')
+ coords = (east, north)
+ if digitToolbar.action == "displayAttrs":
+ # select attributes based on coordinates (all layers)
+ if self.parent.dialogs['attributes'] is None:
+ if digitClass.type == 'vedit':
+ self.parent.dialogs['attributes'] = dbm.DisplayAttributesDialog(parent=self, map=map,
+ query=(coords, qdist),
+ pos=posWindow,
+ action="update")
+ else:
+ if digitClass.driver.SelectLineByPoint(coords,
+ digitClass.GetSelectType()) is not None:
+ self.parent.dialogs['attributes'] = dbm.DisplayAttributesDialog(parent=self, map=map,
+ cats=digitClass.GetLineCats(),
+ line=digitClass.driver.GetSelected()[0],
+ action="update")
+
+ else:
+ # update currently open dialog
+ if digitClass.type == 'vedit':
+ self.parent.dialogs['attributes'].UpdateDialog(query=(coords, qdist))
+ else:
+ # unselect
+ digitClass.driver.SetSelected([])
+ # select new feature
+ if digitClass.driver.SelectLineByPoint(coords,
+ digitClass.GetSelectType()) is None:
+ line = None
+ else:
+ line = digitClass.driver.GetSelected()[0]
+ # upgrade dialog
+ self.parent.dialogs['attributes'].UpdateDialog(cats=digitClass.GetLineCats(),
+ line=line)
+
+ line = self.parent.dialogs['attributes'].GetLine()
+ if self.parent.dialogs['attributes'].mapDBInfo and line:
+ # highlight feature & re-draw map
+ digitClass.driver.SetSelected([line])
+ if not self.parent.dialogs['attributes'].IsShown():
+ self.parent.dialogs['attributes'].Show()
+ else:
+ digitClass.driver.SetSelected([])
+ if self.parent.dialogs['attributes'].IsShown():
+ self.parent.dialogs['attributes'].Hide()
+
+ else: # displayCats
+ if self.parent.dialogs['category'] is None:
+ # open new dialog
+ if digitClass.type == 'vedit':
+ self.parent.dialogs['category'] = VDigitCategoryDialog(parent=self,
+ map=map,
+ query=(coords, qdist),
+ pos=posWindow,
+ title=_("Update categories"))
+ else:
+ if digitClass.driver.SelectLineByPoint(coords,
+ digitClass.GetSelectType()) is not None:
+ self.parent.dialogs['category'] = VDigitCategoryDialog(parent=self,
+ map=map,
+ cats=digitClass.GetLineCats(),
+ line=digitClass.driver.GetSelected()[0],
+ pos=posWindow,
+ title=_("Update categories"))
+
+ else:
+ # update currently open dialog
+ if digitClass.type == 'vedit':
+ self.parent.dialogs['category'].UpdateDialog(query=(coords, qdist))
+ else:
+ # unselect
+ digitClass.driver.SetSelected([])
+ # select new feature
+ if digitClass.driver.SelectLineByPoint(coords,
+ digitClass.GetSelectType()) is None:
+ line = None
+ else:
+ line = digitClass.driver.GetSelected()[0]
+ # upgrade dialog
+ self.parent.dialogs['category'].UpdateDialog(cats=digitClass.GetLineCats(),
+ line=line)
+
+ line = self.parent.dialogs['category'].GetLine()
+ if line:
+ # highlight feature & re-draw map
+ digitClass.driver.SetSelected([line])
+ if not self.parent.dialogs['category'].IsShown():
+ self.parent.dialogs['category'].Show()
+ else:
+ digitClass.driver.SetSelected([])
+ if self.parent.dialogs['category'].IsShown():
+ self.parent.dialogs['category'].Hide()
+
+ self.UpdateMap(render=False)
+
+ elif digitToolbar.action == "copyCats":
+ if not hasattr(self, "copyCatsList"):
+ self.copyCatsList = []
+ else:
+ self.copyCatsIds = []
+ self.mouse['box'] = 'box'
+
+ elif digitToolbar.action == "copyLine":
+ self.copyIds = None
+ self.layerTmp = None
+
+ elif digitToolbar.action == "zbulkLine":
+ if len(self.polycoords) > 1: # start new line
+ self.polycoords = []
+ self.ClearLines(pdc=self.pdcTmp)
+ self.polycoords.append(self.Pixel2Cell(event.GetPositionTuple()[:]))
+ if len(self.polycoords) == 1:
+ begin = self.Pixel2Cell(self.polycoords[-1])
+ end = self.Pixel2Cell(self.mouse['end'])
+ else:
+ end = self.Pixel2Cell(self.polycoords[-1])
+ begin = self.Pixel2Cell(self.mouse['begin'])
+
+ self.DrawLines(self.pdcTmp, begin, end)
+ elif digitToolbar.action == "connectLine":
+ if len(digitClass.driver.GetSelected()) > 1:
+ # if two line selected -> reset
+ digitClass.driver.SetSelected([])
+ digitClass.driver.SelectLineByPoint(self.Pixel2Cell(self.mouse['begin']),
+ digitClass.GetSelectType())
+
+ else:
+ # get decoration id
+ self.lastpos = self.mouse['begin']
+ idlist = self.pdc.FindObjects(x=self.lastpos[0], y=self.lastpos[1],
+ radius=self.hitradius)
+ if idlist != []:
+ self.dragid = idlist[0]
+
+ event.Skip()
+
+ def OnLeftUp(self, event):
+ """
+ Left mouse button released
+ """
+ Debug.msg (5, "BufferedWindow.OnLeftUp(): use=%s" % \
+ self.mouse["use"])
+
+ self.mouse['end'] = event.GetPositionTuple()[:]
+
+ if self.mouse['use'] in ["zoom", "pan"]:
+ # set region in zoom or pan
+ begin = self.mouse['begin']
+ end = self.mouse['end']
+ if self.mouse['use'] == 'zoom':
+ # set region for click (zero-width box)
+ if begin[0] - end[0] == 0 or \
+ begin[1] - end[1] == 0:
+ # zoom 1/2 of the screen (TODO: settings)
+ begin = (end[0] - self.Map.width / 4,
+ end[1] - self.Map.height / 4)
+ end = (end[0] + self.Map.width / 4,
+ end[1] + self.Map.height / 4)
+
+ self.Zoom(begin, end, self.zoomtype)
+
+ # redraw map
+ self.UpdateMap(render=True)
+
+ # update statusbar
+ self.parent.StatusbarUpdate()
+
+ elif self.mouse["use"] == "query":
+ # querying
+ self.parent.QueryMap(self.mouse['begin'][0],self.mouse['begin'][1])
+
+ elif self.mouse["use"] == "queryVector":
+ # editable mode for vector map layers
+ self.parent.QueryVector(self.mouse['begin'][0],self.mouse['begin'][1])
+
+ elif self.mouse["use"] in ["measure", "profile"]:
+ # measure or profile
+ if self.mouse["use"] == "measure":
+ self.parent.MeasureDist(self.mouse['begin'], self.mouse['end'])
+ try:
+ self.polycoords.append(self.Pixel2Cell(self.mouse['end']))
+ self.pdcTmp.ClearId(self.lineid)
+ self.DrawLines(pdc=self.pdcTmp)
+ except:
+ pass
+
+ elif self.mouse["use"] == "pointer" and self.parent.gismanager.georectifying:
+ # -> georectifying
+ coord = self.Pixel2Cell(self.mouse['end'])
+ if self.parent.toolbars['georect']:
+ coordtype = 'gcpcoord'
+ else:
+ coordtype = 'mapcoord'
+
+ self.parent.gismanager.georectifying.SetGCPData(coordtype, coord, self)
+ self.UpdateMap(render=False, renderVector=False)
+
+ elif self.mouse["use"] == "pointer" and self.parent.toolbars['vdigit']:
+ # digitization tool active
+ digitToolbar = self.parent.toolbars['vdigit']
+ digitClass = self.parent.digit
+
+ pos1 = self.Pixel2Cell(self.mouse['begin'])
+ pos2 = self.Pixel2Cell(self.mouse['end'])
+
+ if hasattr(self, "moveBegin"):
+ if len(digitClass.driver.GetSelected()) == 0:
+ self.moveCoords = pos2
+ else:
+ dx = pos2[0] - pos1[0]
+ dy = pos2[1] - pos1[1]
+ self.moveCoords = (self.moveCoords[0] + dx,
+ self.moveCoords[1] + dy)
+ # eliminate initial mouse moving efect
+ self.mouse['begin'] = self.mouse['end']
+
+ if digitToolbar.action in ["deleteLine", "moveLine", "moveVertex",
+ "copyCats", "editLine", "flipLine",
+ "mergeLine", "snapLine",
+ "queryLine", "breakLine", "typeConv"]:
+ nselected = 0
+ # -> delete line || move line || move vertex
+ if digitToolbar.action in ["moveVertex", "editLine"]:
+ if len(digitClass.driver.GetSelected()) == 0:
+ nselected = digitClass.driver.SelectLineByPoint(pos1, type=VDigit_Lines_Type)
+ if digitToolbar.action == "editLine":
+ self.UpdateMap(render=False)
+ selVertex = digitClass.driver.GetSelectedVertex(pos1)[0]
+ ids = digitClass.driver.GetSelected(grassId=False)
+ # move this line to tmp layer
+ self.polycoords = []
+ for id in ids:
+ if id % 2: # register only vertices
+ self.moveIds.append(id)
+ e, n = self.Pixel2Cell(self.pdcVector.GetIdBounds(id)[0:2])
+ self.polycoords.append((e, n))
+ self.pdcVector.RemoveId(id)
+ if selVertex < ids[-1] / 2:
+ # choose first or last node of line
+ self.moveIds.reverse()
+ self.polycoords.reverse()
+
+ self.UpdateMap(render=False, renderVector=False)
+
+ elif digitToolbar.action == "copyCats":
+ if not hasattr(self, "copyCatsIds"):
+ # collect categories
+ nselected = digitClass.driver.SelectLineByPoint(pos1, type=VDigit_Lines_Type)
+ if nselected:
+ qdist = 10.0 * ((self.Map.region['e'] - self.Map.region['w']) / \
+ self.Map.width)
+ vWhat = gcmd.Command(['v.what',
+ '--q',
+ 'map=%s' % digitClass.map,
+ 'east_north=%f,%f' % \
+ (float(pos1[0]), float(pos1[1])),
+ 'distance=%f' % qdist])
+
+ for line in vWhat.ReadStdOutput():
+ if "Category:" in line:
+ cat = int(line.split(':')[1].strip())
+ self.copyCatsList.append(cat)
+ else:
+ # collect ids
+ digitClass.driver.SetSelected([])
+ # return number of selected features (by box/point)
+ nselected = digitClass.driver.SelectLinesByBox(pos1, pos2,
+ digitClass.GetSelectType())
+ if nselected == 0:
+ if digitClass.driver.SelectLineByPoint(pos1,
+ digitClass.GetSelectType()) is not None:
+ nselected = 1
+
+ if nselected > 0:
+ self.copyCatsIds = digitClass.driver.GetSelected()
+
+ elif digitToolbar.action == "queryLine":
+ selected = digitClass.SelectLinesByQuery(pos1, pos2)
+ nselected = len(selected)
+ if nselected > 0:
+ digitClass.driver.SetSelected(selected)
+
+ else:
+ # -> moveLine || deleteLine, etc. (select by point/box)
+ if digitToolbar.action == 'moveLine' and \
+ len(digitClass.driver.GetSelected()) > 0:
+ nselected = 0
+ else:
+ nselected = digitClass.driver.SelectLinesByBox(pos1, pos2,
+ digitClass.GetSelectType())
+ if nselected == 0:
+ if digitClass.driver.SelectLineByPoint(pos1,
+ digitClass.GetSelectType()) is not None:
+ nselected = 1
+
+ if nselected > 0:
+ if digitToolbar.action in ["moveLine", "moveVertex"]:
+ # get pseudoDC id of objects which should be redrawn
+ if digitToolbar.action == "moveLine":
+ # -> move line
+ self.moveIds = digitClass.driver.GetSelected(grassId=False)
+
+ elif digitToolbar.action == "moveVertex":
+ # -> move vertex
+ self.moveIds = digitClass.driver.GetSelectedVertex(pos1)
+ if len(self.moveIds) == 0: # no vertex found
+ digitClass.driver.SetSelected([])
+
+
+ #
+ # check for duplicates
+ #
+ if UserSettings.Get(group='vdigit', key='checkForDupl', subkey='enabled') is True:
+ dupl = digitClass.driver.GetDuplicates()
+ self.UpdateMap(render=False)
+
+ if dupl:
+ posWindow = self.ClientToScreen((self.mouse['end'][0] + self.dialogOffset,
+ self.mouse['end'][1] + self.dialogOffset))
+
+ dlg = VDigitDuplicatesDialog(parent=self, data=dupl, pos=posWindow)
+
+ if dlg.ShowModal() == wx.ID_OK:
+ digitClass.driver.UnSelect(dlg.GetUnSelected())
+ # update selected
+ self.UpdateMap(render=False)
+
+ if digitToolbar.action != "editLine":
+ # -> move line || move vertex
+ self.UpdateMap(render=False)
+
+ else: # no vector object found
+ self.UpdateMap(render=False, renderVector=False)
+
+ elif digitToolbar.action in ["splitLine", "addVertex", "removeVertex"]:
+ pointOnLine = digitClass.driver.SelectLineByPoint(pos1,
+ type=VDigit_Lines_Type)
+ if pointOnLine:
+ self.UpdateMap(render=False) # highlight object
+ if digitToolbar.action in ["splitLine", "addVertex"]:
+ self.DrawCross(pdc=self.pdcTmp, coords=self.Cell2Pixel(pointOnLine),
+ size=5)
+ elif digitToolbar.action == "removeVertex":
+ # get only id of vertex
+ id = digitClass.driver.GetSelectedVertex(pos1)[0]
+ x, y = self.pdcVector.GetIdBounds(id)[0:2]
+ self.pdcVector.RemoveId(id)
+ self.DrawCross(pdc=self.pdcTmp, coords=(x, y),
+ size=5)
+
+ elif digitToolbar.action == "copyLine":
+ if UserSettings.Get(group='vdigit', key='backgroundMap', subkey='value') == '':
+ # no background map -> copy from current vector map layer
+ nselected = digitClass.driver.SelectLinesByBox(pos1, pos2,
+ digitClass.GetSelectType())
+
+ if nselected > 0:
+ # highlight selected features
+ self.UpdateMap(render=False)
+ else:
+ self.UpdateMap(render=False, renderVector=False)
+ else:
+ # copy features from background map
+ self.copyIds = digitClass.SelectLinesFromBackgroundMap(pos1, pos2)
+ if len(self.copyIds) > 0:
+ color = UserSettings.Get(group='vdigit', key='symbolHighlight', subkey='color')
+ colorStr = str(color[0]) + ":" + \
+ str(color[1]) + ":" + \
+ str(color[2]) + ":"
+ dVectTmp = ['d.vect',
+ 'map=%s' % UserSettings.Get(group='vdigit', key='backgroundMap', subkey='value'),
+ 'cats=%s' % utils.ListOfCatsToRange(self.copyIds),
+ '-i',
+ 'color=%s' % colorStr,
+ 'fcolor=%s' % colorStr,
+ 'type=point,line,boundary,centroid',
+ 'width=2']
+ self.layerTmp = self.Map.AddLayer(type='vector',
+ name=globalvar.QUERYLAYER,
+ command=dVectTmp)
+ self.UpdateMap(render=True, renderVector=False)
+ else:
+ self.UpdateMap(render=False, renderVector=False)
+
+ elif digitToolbar.action == "zbulkLine" and len(self.polycoords) == 2:
+ # select lines to be labeled
+ pos1 = self.polycoords[0]
+ pos2 = self.polycoords[1]
+ nselected = digitClass.driver.SelectLinesByBox(pos1, pos2,
+ digitClass.GetSelectType())
+
+ if nselected > 0:
+ # highlight selected features
+ self.UpdateMap(render=False)
+ self.DrawLines(pdc=self.pdcTmp) # redraw temp line
+ else:
+ self.UpdateMap(render=False, renderVector=False)
+
+ elif digitToolbar.action == "connectLine":
+ if len(digitClass.driver.GetSelected()) > 0:
+ self.UpdateMap(render=False)
+
+ elif self.dragid != None:
+ # end drag of overlay decoration
+ if self.overlays.has_key(self.dragid):
+ self.overlays[self.dragid]['coords'] = self.pdc.GetIdBounds(self.dragid)
+ self.dragid = None
+ self.currtxtid = None
+ self.Update()
+
+ event.Skip()
+
+ def OnButtonDClick(self, event):
+ """
+ Mouse button double click
+ """
+ Debug.msg (5, "BufferedWindow.OnButtonDClick(): use=%s" % \
+ self.mouse["use"])
+
+ if self.mouse["use"] == "measure":
+ # measure
+ self.ClearLines(pdc=self.pdcTmp)
+ self.polycoords = []
+ self.mouse['use'] = 'pointer'
+ self.mouse['box'] = 'point'
+ self.mouse['end'] = [0, 0]
+ self.Refresh()
+ self.SetCursor(self.parent.cursors["default"])
+ elif self.mouse["use"] == "profile":
+ # profile
+ pass
+ # self.pdc.ClearId(self.lineid)
+ # self.pdc.ClearId(self.plineid)
+ # print 'coordinates: ',self.polycoords
+ # self.polycoords = []
+ # self.mouse['begin'] = self.mouse['end'] = [0, 0]
+ # self.Refresh()
+ elif self.mouse['use'] == 'pointer' and self.parent.toolbars['vdigit']:
+ # digitization tool
+ pass
+ else:
+ # select overlay decoration options dialog
+ clickposition = event.GetPositionTuple()[:]
+ idlist = self.pdc.FindObjects(clickposition[0], clickposition[1], self.hitradius)
+ if idlist == []:
+ return
+ self.dragid = idlist[0]
+
+ # self.ovlcoords[self.dragid] = self.pdc.GetIdBounds(self.dragid)
+ if self.dragid > 100:
+ self.currtxtid = self.dragid
+ self.parent.OnAddText(None)
+ elif self.dragid == 0:
+ self.parent.OnAddBarscale(None)
+ elif self.dragid == 1:
+ self.parent.OnAddLegend(None)
+
+ event.Skip()
+
+ def OnRightDown(self, event):
+ """
+ Right mouse button pressed
+ """
+ Debug.msg (5, "BufferedWindow.OnRightDown(): use=%s" % \
+ self.mouse["use"])
+
+ x,y = event.GetPositionTuple()[:]
+ l = self.pdc.FindObjects(x=x, y=y, radius=self.hitradius)
+ if not l:
+ return
+
+ id = l[0]
+
+ if id != 99:
+ if self.pdc.GetIdGreyedOut(id) == True:
+ self.pdc.SetIdGreyedOut(id, False)
+ else:
+ self.pdc.SetIdGreyedOut(id, True)
+
+ r = self.pdc.GetIdBounds(id)
+ r.Inflate(4,4)
+ self.RefreshRect(r, False)
+
+ digitToolbar = self.parent.toolbars['vdigit']
+ if digitToolbar:
+ digitClass = self.parent.digit
+ # digitization tool (confirm action)
+ if digitToolbar.action in ["moveLine", "moveVertex"] and \
+ hasattr(self, "moveBegin"):
+
+ pTo = self.Pixel2Cell(event.GetPositionTuple())
+ pFrom = self.moveCoords
+ move = (pTo[0]-pFrom[0], pTo[1]-pFrom[1])
+
+ if digitToolbar.action == "moveLine":
+ # move line
+ digitClass.MoveSelectedLines(move)
+ elif digitToolbar.action == "moveVertex":
+ # move vertex
+ digitClass.MoveSelectedVertex(pFrom,
+ move)
+
+ del self.moveBegin
+ del self.moveCoords
+ del self.moveIds
+
+ event.Skip()
+
+ def OnRightUp(self, event):
+ """
+ Right mouse button released
+ """
+ Debug.msg (5, "BufferedWindow.OnRightUp(): use=%s" % \
+ self.mouse["use"])
+
+ digitToolbar = self.parent.toolbars['vdigit']
+ if digitToolbar:
+ digitClass = self.parent.digit
+ # digitization tool (confirm action)
+ if digitToolbar.action == "addLine" and \
+ digitToolbar.type in ["line", "boundary"]:
+ # -> add new line / boundary
+ try:
+ map = digitToolbar.layers[digitToolbar.layerSelectedID].name
+ except:
+ map = None
+ dlg = wx.MessageDialog(self, _("No vector map selected for editing."),
+ _("Error"), wx.OK | wx.ICON_ERROR)
+ dlg.ShowModal()
+ dlg.Destroy()
+
+ if map:
+ # mapcoords = []
+ # xy -> EN
+ # for coord in self.polycoords:
+ # mapcoords.append(self.Pixel2Cell(coord))
+ if digitToolbar.type == 'line':
+ line = True
+ else:
+ line = False
+ digitClass.AddLine(map, line, self.polycoords)
+
+ position = self.Cell2Pixel(self.polycoords[-1])
+ self.polycoords = []
+ self.UpdateMap(render=False)
+
+ # add new record into atribute table
+ if UserSettings.Get(group='vdigit', key="addRecord", subkey='enabled') is True:
+ posWindow = self.ClientToScreen((position[0] + self.dialogOffset,
+ position[1] + self.dialogOffset))
+
+ # select attributes based on layer and category
+ cats = {}
+ cats[UserSettings.Get(group='vdigit', key="layer", subkey='value')] = \
+ (UserSettings.Get(group='vdigit', key="category", subkey='value'), )
+ addRecordDlg = dbm.DisplayAttributesDialog(parent=self, map=map,
+ cats=cats,
+ pos=posWindow,
+ action="add")
+ if addRecordDlg.mapDBInfo and \
+ addRecordDlg.ShowModal() == wx.ID_OK:
+ sqlfile = tempfile.NamedTemporaryFile(mode="w")
+ for sql in addRecordDlg.GetSQLString():
+ sqlfile.file.write(sql + ";\n")
+ sqlfile.file.flush()
+ executeCommand = gcmd.Command(cmd=["db.execute",
+ "--q",
+ "input=%s" % sqlfile.name])
+ elif digitToolbar.action == "deleteLine":
+ # -> delete selected vector features
+ digitClass.DeleteSelectedLines()
+ elif digitToolbar.action == "splitLine":
+ # split line
+ digitClass.SplitLine(self.Pixel2Cell(self.mouse['begin']))
+ elif digitToolbar.action == "addVertex":
+ # add vertex
+ digitClass.AddVertex(self.Pixel2Cell(self.mouse['begin']))
+ elif digitToolbar.action == "removeVertex":
+ # remove vertex
+ digitClass.RemoveVertex(self.Pixel2Cell(self.mouse['begin']))
+ elif digitToolbar.action == "copyCats":
+ try:
+ digitClass.CopyCats(self.copyCatsList,
+ self.copyCatsIds)
+ del self.copyCatsList
+ del self.copyCatsIds
+ except:
+ pass
+ elif digitToolbar.action == "editLine" and hasattr(self, "moveBegin"):
+ line = digitClass.driver.GetSelected()
+ digitClass.EditLine(line, self.polycoords)
+
+ del self.moveBegin
+ del self.moveCoords
+ del self.moveIds
+ elif digitToolbar.action == "flipLine":
+ digitClass.FlipLine()
+ elif digitToolbar.action == "mergeLine":
+ digitClass.MergeLine()
+ elif digitToolbar.action == "breakLine":
+ digitClass.BreakLine()
+ elif digitToolbar.action == "snapLine":
+ digitClass.SnapLine()
+ elif digitToolbar.action == "connectLine":
+ if len(digitClass.driver.GetSelected()) == 2:
+ digitClass.ConnectLine()
+ elif digitToolbar.action == "copyLine":
+ digitClass.CopyLine(self.copyIds)
+ del self.copyIds
+ if self.layerTmp:
+ self.Map.DeleteLayer(self.layerTmp)
+ self.UpdateMap(render=True, renderVector=False)
+ del self.layerTmp
+
+ elif digitToolbar.action == "zbulkLine" and len(self.polycoords) == 2:
+ pos1 = self.polycoords[0]
+ pos2 = self.polycoords[1]
+
+ selected = digitClass.driver.GetSelected()
+ dlg = VDigitZBulkDialog(parent=self, title=_("Z bulk-labeling dialog"),
+ nselected=len(selected))
+ if dlg.ShowModal() == wx.ID_OK:
+ digitClass.ZBulkLine(pos1, pos2, dlg.value.GetValue(), dlg.step.GetValue())
+
+ self.UpdateMap(render=False, renderVector=True)
+ elif digitToolbar.action == "typeConv":
+ # -> feature type conversion
+ # - point <-> centroid
+ # - line <-> boundary
+ digitClass.TypeConvForSelectedLines()
+
+ if digitToolbar.action != "addLine":
+ # unselect and re-render
+ digitClass.driver.SetSelected([])
+ self.polycoords = []
+ self.UpdateMap(render=False)
+
+ event.Skip()
+
+ def OnMiddleDown(self, event):
+ """Middle mouse button pressed"""
+ digitToolbar = self.parent.toolbars['vdigit']
+ # digitization tool
+ if self.mouse["use"] == "pointer" and digitToolbar:
+ digitClass = self.parent.digit
+ if (digitToolbar.action == "addLine" and digitToolbar.type in ["line", "boundary"]) or \
+ digitToolbar.action == "editLine":
+ # add line or boundary -> remove last point from the line
+ try:
+ removed = self.polycoords.pop()
+ Debug.msg(4, "BufferedWindow.OnMiddleDown(): polycoords_poped=%s" % \
+ [removed,])
+
+ self.mouse['begin'] = self.Cell2Pixel(self.polycoords[-1])
+ except:
+ pass
+
+ if digitToolbar.action == "editLine":
+ # remove last vertex & line
+ self.moveIds.pop()
+
+ self.UpdateMap(render=False, renderVector=False)
+
+ elif digitToolbar.action in ["deleteLine", "moveLine", "splitLine",
+ "addVertex", "removeVertex", "moveVertex",
+ "copyCats", "flipLine", "mergeLine",
+ "snapLine", "connectLine", "copyLine",
+ "queryLine", "breakLine", "typeConv"]:
+ # varios tools -> unselected selected features
+ digitClass.driver.SetSelected([])
+ if digitToolbar.action in ["moveLine", "moveVertex", "editLine"] and \
+ hasattr(self, "moveBegin"):
+
+ del self.moveBegin
+ del self.moveCoords
+ del self.moveIds
+ elif digitToolbar.action == "copyCats":
+ try:
+ del self.copyCatsList
+ del self.copyCatsIds
+ except:
+ pass
+ elif digitToolbar.action == "copyLine":
+ del self.copyIds
+ if self.layerTmp:
+ self.Map.DeleteLayer(self.layerTmp)
+ self.UpdateMap(render=True, renderVector=False)
+ del self.layerTmp
+
+ self.polycoords = []
+ self.UpdateMap(render=False) # render vector
+
+ elif digitToolbar.action == "zbulkLine":
+ # reset polyline
+ self.polycoords = []
+ digitClass.driver.SetSelected([])
+ self.UpdateMap(render=False)
+
+
+ def OnMouseMoving(self, event):
+ """Motion event and no mouse buttons were pressed"""
+
+ digitToolbar = self.parent.toolbars['vdigit']
+ if self.mouse["use"] == "pointer" and digitToolbar:
+ digitClass = self.parent.digit
+ self.mouse['end'] = event.GetPositionTuple()[:]
+ Debug.msg (5, "BufferedWindow.OnMouseMoving(): coords=%f,%f" % \
+ (self.mouse['end'][0], self.mouse['end'][1]))
+ if digitToolbar.action == "addLine" and digitToolbar.type in ["line", "boundary"]:
+ if len(self.polycoords) > 0:
+ self.MouseDraw(pdc=self.pdcTmp, begin=self.Cell2Pixel(self.polycoords[-1]))
+ elif digitToolbar.action in ["moveLine", "moveVertex", "editLine"] \
+ and hasattr(self, "moveBegin"):
+ dx = self.mouse['end'][0] - self.mouse['begin'][0]
+ dy = self.mouse['end'][1] - self.mouse['begin'][1]
+ self.moveBegin[0] += dx
+ self.moveBegin[1] += dy
+ if len(self.moveIds) > 0:
+ # draw lines on new position
+ if digitToolbar.action == "moveLine":
+ # move line
+ for id in self.moveIds:
+ self.pdcVector.TranslateId(id, dx, dy)
+ elif digitToolbar.action in ["moveVertex", "editLine"]:
+ # move vertex ->
+ # (vertex, left vertex, left line,
+ # right vertex, right line)
+
+ # do not draw static lines
+ if digitToolbar.action == "moveVertex":
+ self.polycoords = []
+ self.pdcVector.TranslateId(self.moveIds[0], dx, dy)
+ if self.moveIds[1] > 0: # previous vertex
+ x, y = self.Pixel2Cell(self.pdcVector.GetIdBounds(self.moveIds[1])[0:2])
+ self.pdcVector.RemoveId(self.moveIds[1]+1)
+ self.polycoords.append((x, y))
+ x, y = self.Pixel2Cell(self.pdcVector.GetIdBounds(self.moveIds[0])[0:2])
+ self.polycoords.append((x, y))
+ if self.moveIds[2] > 0: # next vertex
+ x, y = self.Pixel2Cell(self.pdcVector.GetIdBounds(self.moveIds[2])[0:2])
+ self.pdcVector.RemoveId(self.moveIds[2]-1)
+ self.polycoords.append((x, y))
+
+ self.ClearLines(pdc=self.pdcTmp)
+ self.DrawLines(pdc=self.pdcTmp)
+
+ else: # edit line
+ try:
+ if self.moveIds[-1] > 0: # previous vertex
+ self.MouseDraw(pdc=self.pdcTmp,
+ begin=self.Cell2Pixel(self.polycoords[-1]))
+ except: # no line
+ self.moveIds = []
+ self.polycoords = []
+
+ self.Refresh() # TODO: use RefreshRect()
+ self.mouse['begin'] = self.mouse['end']
+
+ elif digitToolbar.action == "zbulkLine":
+ if len(self.polycoords) == 1:
+ # draw mouse moving
+ self.MouseDraw(self.pdcTmp)
+
+ event.Skip()
+
+ def ClearLines(self, pdc=None):
+ """
+ Clears temporary drawn lines from PseudoDC
+ """
+
+ if not pdc:
+ return
+
+ exit = True
+
+ try:
+ pdc.ClearId(self.lineid)
+ pdc.RemoveId(self.lineid)
+ except:
+ exit = False
+
+ try:
+ pdc.ClearId(self.plineid)
+ pdc.RemoveId(self.plineid)
+ except:
+ exit = False
+
+ Debug.msg(4, "BufferedWindow.ClearLines(): lineid=%s, plineid=%s" %
+ (self.lineid, self.plineid))
+
+ self.Refresh()
+
+ return exit
+
+ def Pixel2Cell(self, (x, y)):
+ """
+ Convert image coordinates to real word coordinates
+
+ Input : int x, int y
+ Output: float x, float y
+ """
+
+ try:
+ x = int(x)
+ y = int(y)
+ except:
+ return None
+
+ if self.Map.region["ewres"] > self.Map.region["nsres"]:
+ res = self.Map.region["ewres"]
+ else:
+ res = self.Map.region["nsres"]
+
+ w = self.Map.region["center_easting"] - (self.Map.width / 2) * res
+ n = self.Map.region["center_northing"] + (self.Map.height / 2) * res
+
+ east = w + x * res
+ north = n - y * res
+
+ # extent does not correspond with whole map canvas area...
+ # east = self.Map.region['w'] + x * self.Map.region["ewres"]
+ # north = self.Map.region['n'] - y * self.Map.region["nsres"]
+
+ return (east, north)
+
+ def Cell2Pixel(self, (east, north)):
+ """
+ Convert real word coordinates to image coordinates
+ """
+
+ try:
+ east = float(east)
+ north = float(north)
+ except:
+ return None
+
+ if self.Map.region["ewres"] > self.Map.region["nsres"]:
+ res = self.Map.region["ewres"]
+ else:
+ res = self.Map.region["nsres"]
+
+ w = self.Map.region["center_easting"] - (self.Map.width / 2) * res
+ n = self.Map.region["center_northing"] + (self.Map.height / 2) * res
+
+ # x = int((east - w) / res)
+ # y = int((n - north) / res)
+
+ x = (east - w) / res
+ y = (n - north) / res
+
+ return (x, y)
+
+ def Zoom(self, begin, end, zoomtype):
+ """
+ Calculates new region while (un)zoom/pan-ing
+ """
+ x1, y1 = begin
+ x2, y2 = end
+ newreg = {}
+
+ # threshold - too small squares do not make sense
+ # can only zoom to windows of > 5x5 screen pixels
+ if abs(x2-x1) > 5 and abs(y2-y1) > 5 and zoomtype != 0:
+
+ if x1 > x2:
+ x1, x2 = x2, x1
+ if y1 > y2:
+ y1, y2 = y2, y1
+
+ # zoom in
+ if zoomtype > 0:
+ newreg['w'], newreg['n'] = self.Pixel2Cell((x1, y1))
+ newreg['e'], newreg['s'] = self.Pixel2Cell((x2, y2))
+
+ # zoom out
+ elif zoomtype < 0:
+ newreg['w'], newreg['n'] = self.Pixel2Cell((-x1 * 2, -y1 * 2))
+ newreg['e'], newreg['s'] = self.Pixel2Cell((self.Map.width + 2 * \
+ (self.Map.width - x2),
+ self.Map.height + 2 * \
+ (self.Map.height - y2)))
+ # pan
+ elif zoomtype == 0:
+ dx = x1 - x2
+ dy = y1 - y2
+ newreg['w'], newreg['n'] = self.Pixel2Cell((dx, dy))
+ newreg['e'], newreg['s'] = self.Pixel2Cell((self.Map.width + dx,
+ self.Map.height + dy))
+
+ # if new region has been calculated, set the values
+ if newreg != {}:
+ # calculate new center point and display resolution
+ self.Map.region['center_easting'] = newreg['w'] + \
+ (newreg['e'] - newreg['w']) / 2
+ self.Map.region['center_northing'] = newreg['s'] + \
+ (newreg['n'] - newreg['s']) / 2
+ self.Map.region["ewres"] = (newreg['e'] - newreg['w']) / self.Map.width
+ self.Map.region["nsres"] = (newreg['n'] - newreg['s']) / self.Map.height
+ self.Map.AlignExtentFromDisplay()
+
+ self.ZoomHistory(self.Map.region['n'], self.Map.region['s'],
+ self.Map.region['e'], self.Map.region['w'])
+
+ if self.redrawAll is False:
+ self.redrawAll = True
+
+ def ZoomBack(self):
+ """
+ Zoom to previous extents in zoomhistory list
+ """
+
+ zoom = []
+ if len(self.zoomhistory) > 1:
+ self.zoomhistory.pop()
+ zoom = self.zoomhistory[len(self.zoomhistory)-1]
+ # (n, s, e, w)
+ if zoom:
+ # zoom to selected region
+ self.Map.region['center_easting'] = zoom[3] + \
+ (zoom[2] - zoom[3]) / 2
+ self.Map.region['center_northing'] = zoom[1] + \
+ (zoom[0] - zoom[1]) / 2
+ self.Map.region["ewres"] = (zoom[2] - zoom[3]) / self.Map.width
+ self.Map.region["nsres"] = (zoom[0] - zoom[1]) / self.Map.height
+ self.Map.AlignExtentFromDisplay()
+
+ # update map
+ self.UpdateMap()
+
+ # update statusbar
+ self.parent.StatusbarUpdate()
+
+ def ZoomHistory(self, n, s, e, w):
+ """
+ Manages a list of last 10 zoom extents
+
+ Return removed history item if exists
+ """
+ removed = None
+ self.zoomhistory.append((n,s,e,w))
+
+ if len(self.zoomhistory) > 10:
+ removed = self.zoomhistory.pop(0)
+
+ if removed:
+ Debug.msg(4, "BufferedWindow.ZoomHistory(): hist=%s, removed=%s" %
+ (self.zoomhistory, removed))
+ else:
+ Debug.msg(4, "BufferedWindow.ZoomHistory(): hist=%s" %
+ (self.zoomhistory))
+
+ return removed
+
+ def ZoomToMap(self, event):
+ """
+ Set display extents to match selected raster
+ or vector map.
+ """
+ zoomreg = {}
+
+ # find selected map
+ if not self.tree or not self.tree.GetSelection():
+ return
+
+ item = self.tree.GetSelection()
+ try:
+ layer = self.tree.GetPyData(item)[0]['maplayer']
+ except:
+ layer = None
+
+ if layer is None:
+ return
+
+ Debug.msg (3, "BufferedWindow.ZoomToMap(): layer=%s, type=%s" % \
+ (layer.name, layer.type))
+
+ # selected layer must be a valid map
+ if layer.type in ('raster', 'rgb', 'his', 'shaded', 'arrow'):
+ self.Map.region = self.Map.GetRegion(rast="%s" % layer.name)
+ elif layer.type in ('vector', 'thememap', 'themechart'):
+ if self.parent.digit and layer.name == self.parent.digit.map and \
+ self.parent.digit.type == 'vdigit':
+ w, s, b, e, n, t = self.parent.digit.driver.GetMapBoundingBox()
+ self.Map.region = self.Map.GetRegion(n=n, s=s, w=w, e=e)
+ else:
+ self.Map.region = self.Map.GetRegion(vect="%s" % layer.name)
+ else:
+ return
+
+ ### self.Map.SetRegion()
+ ### self.Map.AlignExtentFromDisplay()
+
+ self.ZoomHistory(self.Map.region['n'], self.Map.region['s'],
+ self.Map.region['e'], self.Map.region['w'])
+
+ self.UpdateMap()
+
+ self.parent.StatusbarUpdate()
+
+ def ZoomToWind(self, event):
+ """
+ Set display geometry to match computational
+ region settings (set with g.region)
+ """
+ self.Map.region = self.Map.GetRegion()
+ ### self.Map.SetRegion(windres=True)
+
+ self.ZoomHistory(self.Map.region['n'], self.Map.region['s'],
+ self.Map.region['e'], self.Map.region['w'])
+
+ self.UpdateMap()
+
+ self.parent.StatusbarUpdate()
+
+ def ZoomToDefault(self, event):
+ """Set display geometry to match default
+ region settings"""
+ self.Map.region = self.Map.GetRegion(default=True)
+ self.Map.AdjustRegion() # aling region extent to the display
+
+ self.ZoomHistory(self.Map.region['n'], self.Map.region['s'],
+ self.Map.region['e'], self.Map.region['w'])
+
+ self.UpdateMap()
+
+ self.parent.StatusbarUpdate()
+
+ def DisplayToWind(self, event):
+ """
+ Set computational region (WIND file) to
+ match display extents
+ """
+ tmpreg = os.getenv("GRASS_REGION")
+ os.unsetenv("GRASS_REGION")
+
+ # We ONLY want to set extents here. Don't mess with resolution. Leave that
+ # for user to set explicitly with g.region
+ new = self.Map.AlignResolution()
+
+ cmdRegion = ["g.region", "--o",
+ "n=%f" % new['n'],
+ "s=%f" % new['s'],
+ "e=%f" % new['e'],
+ "w=%f" % new['w'],
+ "rows=%f" % new['rows'],
+ "cols=%f" % new['cols']]
+
+ p = gcmd.Command(cmdRegion)
+
+ if tmpreg:
+ os.environ["GRASS_REGION"] = tmpreg
+
+ def ZoomToSaved(self, event):
+ """
+ Set display geometry to match extents in
+ saved region file
+ """
+
+ zoomreg = {}
+
+ dlg = gdialogs.SavedRegion(self, wx.ID_ANY, _("Zoom to saved region extents"),
+ pos=wx.DefaultPosition, size=wx.DefaultSize,
+ style=wx.DEFAULT_DIALOG_STYLE,
+ loadsave='load')
+
+ if dlg.ShowModal() == wx.ID_CANCEL:
+ dlg.Destroy()
+ return
+
+ wind = dlg.wind
+
+ p = gcmd.Command (["g.region",
+ "-ugp", "region=%s" % wind])
+
+ if p.returncode == 0:
+ output = p.ReadStdOutput()
+ for line in output:
+ line = line.strip()
+ if '=' in line: key,val = line.split('=')
+ zoomreg[key] = float(val)
+ self.Map.region['n'] = zoomreg['n']
+ self.Map.region['s'] = zoomreg['s']
+ self.Map.region['e'] = zoomreg['e']
+ self.Map.region['w'] = zoomreg['w']
+ self.ZoomHistory(self.Map.region['n'],self.Map.region['s'],self.Map.region['e'],self.Map.region['w'])
+ self.UpdateMap()
+
+ dlg.Destroy()
+
+ def SaveDisplayRegion(self, event):
+ """
+ Save display extents to named region file.
+ """
+
+ dlg = gdialogs.SavedRegion(self, wx.ID_ANY, "Save display extents to region file",
+ pos=wx.DefaultPosition, size=wx.DefaultSize,
+ style=wx.DEFAULT_DIALOG_STYLE,
+ loadsave='save')
+ if dlg.ShowModal() == wx.ID_CANCEL:
+ dlg.Destroy()
+ return
+
+ wind = dlg.wind
+
+ # test to see if it already exists and ask permission to overwrite
+ windpath = os.path.join(self.Map.env["GISDBASE"], self.Map.env["LOCATION_NAME"],
+ self.Map.env["MAPSET"],"windows",wind)
+
+ if windpath and not os.path.exists(windpath):
+ self.SaveRegion(wind)
+ elif windpath and os.path.exists(windpath):
+ overwrite = wx.MessageBox(_("Region file <%s> already exists. "
+ "Do you want to overwrite it?") % (wind),
+ _("Warning"), wx.YES_NO)
+ if (overwrite == wx.YES):
+ self.SaveRegion(wind)
+ else:
+ pass
+
+ dlg.Destroy()
+
+ def SaveRegion(self, wind):
+ """Save region settings"""
+ new = self.Map.AlignResolution()
+
+ cmdRegion = ["g.region",
+ "-u",
+ "n=%f" % new['n'],
+ "s=%f" % new['s'],
+ "e=%f" % new['e'],
+ "w=%f" % new['w'],
+ "rows=%d" % new['rows'],
+ "cols=%d" % new['cols'],
+ "save=%s" % wind,
+ "--o"]
+
+ tmpreg = os.getenv("GRASS_REGION")
+ os.unsetenv("GRASS_REGION")
+
+ p = gcmd.Command(cmdRegion)
+
+ if tmpreg:
+ os.environ["GRASS_REGION"] = tmpreg
+
+ def Distance(self, beginpt, endpt, screen=True):
+ """Calculete distance
+
+ LL-locations not supported
+
+ @todo Use m.distance
+
+ @param beginpt first point
+ @param endpt second point
+ @param screen True for screen coordinates otherwise EN
+ """
+ x1, y1 = beginpt
+ x2, y2 = endpt
+ if screen:
+ dEast = (x2 - x1) * self.Map.region["ewres"]
+ dNorth = (y2 - y1) * self.Map.region["nsres"]
+ else:
+ dEast = (x2 - x1)
+ dNorth = (y2 - y1)
+
+
+ return (math.sqrt(math.pow((dEast),2) + math.pow((dNorth),2)), (dEast, dNorth))
+
+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 - Map display"),
+ pos=wx.DefaultPosition, size=wx.DefaultSize,
+ style=wx.DEFAULT_FRAME_STYLE, toolbars=["map"],
+ tree=None, notebook=None, gismgr=None, page=None,
+ Map=None, auimgr=None):
+ """
+ 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 gismgr Layer Manager panel
+ @param page notebook page with layer tree
+ @param Map instance of render.Map
+ """
+
+ wx.Frame.__init__(self, parent, id, title, pos, size, style)
+
+ self.gismanager = gismgr # GIS Manager object
+ self.Map = Map # instance of render.Map
+ self.tree = tree # GIS Manager layer tree object
+ self.page = page # Notebook page holding the layer tree
+ self.layerbook = notebook # GIS Manager layer tree notebook
+ self.parent = parent
+
+ #
+ # 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(size)
+ self.iconsize = (16, 16)
+
+ self.SetIcon(wx.Icon(os.path.join(globalvar.ETCDIR, 'grass_map.ico'), wx.BITMAP_TYPE_ICO))
+
+ #
+ # Fancy gui
+ #
+ # self._mgr = auimgr
+ self._mgr = wx.aui.AuiManager(self)
+
+ #
+ # Add toolbars
+ #
+ self.toolbars = { 'map' : None,
+ 'vdigit' : None,
+ 'georect' : None }
+ for toolb in toolbars:
+ self.AddToolbar(toolb)
+
+ #
+ # Add statusbar
+ #
+ self.statusbar = self.CreateStatusBar(number=3, style=0)
+ self.statusbar.SetStatusWidths([-5, -2, -1])
+ self.toggleStatus = wx.Choice(self.statusbar, wx.ID_ANY,
+ choices = globalvar.MAP_DISPLAY_STATUSBAR_MODE)
+ self.toggleStatus.SetSelection(UserSettings.Get(group='display', key='statusbarMode', subkey='selection'))
+ self.statusbar.Bind(wx.EVT_CHOICE, self.OnToggleStatus, self.toggleStatus)
+ # auto-rendering checkbox
+ self.autoRender = wx.CheckBox(parent=self.statusbar, id=wx.ID_ANY,
+ label=_("Render"))
+ self.statusbar.Bind(wx.EVT_CHECKBOX, self.OnToggleRender, self.autoRender)
+ self.autoRender.SetValue(UserSettings.Get(group='display', key='autoRendering', subkey='enabled'))
+ self.autoRender.SetToolTip(wx.ToolTip (_("Enable/disable auto-rendering")))
+ # show region
+ self.showRegion = wx.CheckBox(parent=self.statusbar, id=wx.ID_ANY,
+ label=_("Show computational extent"))
+ self.statusbar.Bind(wx.EVT_CHECKBOX, self.OnToggleShowRegion, self.showRegion)
+
+ self.showRegion.SetValue(False)
+ self.showRegion.Hide()
+ self.showRegion.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.compResolution = 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.compResolution)
+ self.compResolution.SetValue(UserSettings.Get(group='display', key='compResolution', subkey='enabled'))
+ self.compResolution.Hide()
+ self.compResolution.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.mapScale = wx.TextCtrl(parent=self.statusbar, id=wx.ID_ANY,
+ value="", style=wx.TE_PROCESS_ENTER,
+ size=(150, -1))
+ self.mapScale.Hide()
+ self.statusbar.Bind(wx.EVT_TEXT_ENTER, self.OnChangeMapScale, self.mapScale)
+ # on-render gauge
+ self.onRenderGauge = wx.Gauge(parent=self.statusbar, id=wx.ID_ANY,
+ range=0, style=wx.GA_HORIZONTAL)
+ self.onRenderGauge.Hide()
+ self.Bind(wx.EVT_TIMER, self.TimerOnRender)
+ self.onRenderTimer = wx.Timer(self)
+
+ self.StatusbarReposition() # reposition statusbar
+
+ #
+ # Init map display (buffered DC & set default cursor)
+ #
+ self.MapWindow = BufferedWindow(self, id=wx.ID_ANY, Map=self.Map, tree=self.tree, gismgr=self.gismanager)
+ self.MapWindow.Bind(wx.EVT_MOTION, self.OnMotion)
+ self.MapWindow.SetCursor(self.cursors["default"])
+
+ #
+ # initialize region values
+ #
+ self.__InitDisplay()
+
+ #
+ # Bind various events
+ #
+ self.Bind(wx.EVT_ACTIVATE, self.OnFocus)
+ self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
+
+ #
+ # Update fancy gui style
+ #
+ self._mgr.AddPane(self.MapWindow, wx.aui.AuiPaneInfo().CentrePane().
+ Dockable(False).BestSize((-1,-1)).
+ CloseButton(False).DestroyOnClose(True).
+ Layer(0))
+ self._mgr.Update()
+
+ #
+ # Init print module and classes
+ #
+ self.printopt = disp_print.PrintOptions(self, self.MapWindow)
+
+ #
+ # Current location information
+ #
+ self.projinfo = self.Map.ProjInfo()
+
+ #
+ # Initialization of digitization tool
+ #
+ self.digit = None
+
+ #
+ # Init zoom history
+ #
+ self.MapWindow.ZoomHistory(self.Map.region['n'],
+ self.Map.region['s'],
+ self.Map.region['e'],
+ self.Map.region['w'])
+
+ #
+ # 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
+ - digit vector digitizer
+ - georect georectifier
+ """
+ if name == "map":
+ self.toolbars['map'] = toolbars.MapToolbar(self, self.Map)
+
+ self._mgr.AddPane(self.toolbars['map'].toolbar,
+ wx.aui.AuiPaneInfo().
+ Name("maptoolbar").Caption(_("Map Toolbar")).
+ ToolbarPane().Top().
+ LeftDockable(False).RightDockable(False).
+ BottomDockable(False).TopDockable(True).
+ CloseButton(False).Layer(2))
+
+ if name == "digit":
+ self.toolbars['vdigit'] = toolbars.VDigitToolbar(self, self.Map, self.tree)
+
+ for toolRow in range(0, self.toolbars['vdigit'].numOfRows):
+ self._mgr.AddPane(self.toolbars['vdigit'].toolbar[toolRow],
+ wx.aui.AuiPaneInfo().
+ Name("vdigittoolbar" + str(toolRow)).Caption(_("Vector digitizer toolbar")).
+ ToolbarPane().Top().Row(toolRow + 1).
+ LeftDockable(False).RightDockable(False).
+ BottomDockable(False).TopDockable(True).
+ CloseButton(False).Layer(2))
+
+ # change mouse to draw digitized line
+ self.MapWindow.mouse['box'] = "point"
+ self.MapWindow.zoomtype = 0
+ self.MapWindow.pen = wx.Pen(colour='red', width=2, style=wx.SOLID)
+ self.MapWindow.polypen = wx.Pen(colour='green', width=2, style=wx.SOLID)
+
+ if name == "georect":
+ self.toolbars['georect'] = toolbars.GRToolbar(self, self.Map)
+
+ self._mgr.AddPane(self.toolbars['georect'].toolbar,
+ wx.aui.AuiPaneInfo().
+ Name("georecttoolbar").Caption(_("Georectification Toolbar")).
+ ToolbarPane().Top().
+ LeftDockable(False).RightDockable(False).
+ BottomDockable(False).TopDockable(True).
+ CloseButton(False).Layer(2))
+
+ self._mgr.Update()
+
+ def RemoveToolbar (self, name):
+ """
+ Removes toolbar from the window
+
+ TODO: Only hide, activate by calling AddToolbar()
+ """
+
+ # cannot hide main toolbar
+ if name == "map":
+ return
+ elif name == "digit":
+ # TODO: not destroy only hide
+ for toolRow in range(0, self.toolbars['vdigit'].numOfRows):
+ self._mgr.DetachPane (self.toolbars['vdigit'].toolbar[toolRow])
+ self.toolbars['vdigit'].toolbar[toolRow].Destroy()
+ self.toolbars['vdigit'] = None
+
+ self.toolbars['map'].combo.SetValue ("Tools");
+ 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.Map.ChangeMapSize(self.GetClientSize())
+ self.Map.region = self.Map.GetRegion() # g.region -upgc
+ # self.Map.SetRegion() # adjust region to match display window
+
+ def OnFocus(self, event):
+ """
+ Change choicebook page to match display.
+ Or set display for georectifying
+ """
+ if self.gismanager.georectifying:
+ # in georectifying session; display used to get get geographic
+ # coordinates for GCPs
+ self.OnPointer(event)
+ else:
+ # change bookcontrol page to page associated with display
+ if self.page:
+ pgnum = self.layerbook.GetPageIndex(self.page)
+ if pgnum > -1:
+ self.layerbook.SetSelection(pgnum)
+
+ event.Skip()
+
+ def OnMotion(self, event):
+ """
+ Mouse moved
+ Track mouse motion and update status bar
+ """
+ # update statusbar if required
+ if self.toggleStatus.GetSelection() == 0: # Coordinates
+ e, n = self.MapWindow.Pixel2Cell(event.GetPositionTuple())
+ if self.toolbars['vdigit'] and \
+ self.toolbars['vdigit'].action == 'addLine' and \
+ self.toolbars['vdigit'].type in ('line', 'boundary') and \
+ len(self.MapWindow.polycoords) > 0:
+ # for linear feature show segment and total length
+ distance_seg = self.MapWindow.Distance(self.MapWindow.polycoords[-1],
+ (e, n), screen=False)[0]
+ distance_tot = distance_seg
+ for idx in range(1, len(self.MapWindow.polycoords)):
+ distance_tot += self.MapWindow.Distance(self.MapWindow.polycoords[idx-1],
+ self.MapWindow.polycoords[idx],
+ screen=False )[0]
+ self.statusbar.SetStatusText("%.2f, %.2f (seg: %.2f; tot: %.2f)" % \
+ (e, n, distance_seg, distance_tot), 0)
+ else:
+ self.statusbar.SetStatusText("%.2f, %.2f" % (e, n), 0)
+
+ event.Skip()
+
+ def OnDraw(self, event):
+ """
+ Re-display current map composition
+ """
+ self.MapWindow.UpdateMap(render=False)
+
+ def TimerOnRender(self, event):
+ """Update process bar"""
+ self.onRenderGauge.SetValue(self.onRenderCounter)
+
+ def OnRender(self, event):
+ """
+ Re-render map composition (each map layer)
+ """
+ # detele tmp map layers (queries)
+ qlayer = self.Map.GetListOfLayers(l_name=globalvar.QUERYLAYER)
+ for layer in qlayer:
+ self.Map.DeleteLayer(layer)
+ self.MapWindow.UpdateMap(render=True)
+
+ # update statusbar
+ self.StatusbarUpdate()
+
+ def OnPointer(self, event):
+ """Pointer button clicked"""
+
+ self.MapWindow.mouse['use'] = "pointer"
+ self.MapWindow.mouse['box'] = "point"
+
+ # change the cursor
+ if self.toolbars['vdigit']:
+ # digitization tool activated
+ self.MapWindow.SetCursor(self.cursors["cross"])
+
+ # reset mouse['box'] if needed
+ if self.toolbars['vdigit'].action in ['addLine']:
+ if self.toolbars['vdigit'].type in ['point', 'centroid']:
+ self.MapWindow.mouse['box'] = 'point'
+ else: # line, boundary
+ self.MapWindow.mouse['box'] = 'line'
+ elif self.toolbars['vdigit'].action in ['addVertex', 'removeVertex', 'splitLine',
+ 'editLine', 'displayCats', 'displayAttrs',
+ 'copyCats', 'connectLine']:
+ self.MapWindow.mouse['box'] = 'point'
+ else: # moveLine, deleteLine
+ self.MapWindow.mouse['box'] = 'box'
+ elif self.gismanager.georectifying:
+ self.MapWindow.SetCursor(self.cursors["cross"])
+ else:
+ self.MapWindow.SetCursor(self.cursors["default"])
+
+ def OnZoomIn(self, event):
+ """
+ Zoom in the map.
+ Set mouse cursor, zoombox attributes, and zoom direction
+ """
+ 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"])
+
+ def OnZoomOut(self, event):
+ """
+ Zoom out the map.
+ Set mouse cursor, zoombox attributes, and zoom direction
+ """
+ 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"])
+
+ def OnZoomBack(self, event):
+ """
+ Zoom last (previously stored position)
+ """
+ self.MapWindow.ZoomBack()
+
+ def OnPan(self, event):
+ """
+ Panning, set mouse to drag
+ """
+ self.MapWindow.mouse['use'] = "pan"
+ self.MapWindow.mouse['box'] = "pan"
+ self.MapWindow.zoomtype = 0
+# event.Skip()
+
+ # change the cursor
+ self.MapWindow.SetCursor(self.cursors["hand"])
+
+ def OnErase(self, event):
+ """
+ Erase the canvas
+ """
+ self.MapWindow.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.autoRender.GetValue():
+ self.OnRender(None)
+
+ def OnToggleShowRegion(self, event):
+ """Show/Hide extent in map canvas"""
+ if self.showRegion.GetValue():
+ # show extent
+ self.MapWindow.regionCoords = []
+ else:
+ del self.MapWindow.regionCoords
+
+ # redraw map if auto-rendering is enabled
+ if self.autoRender.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.autoRender.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.mapScale.SetValue('1:' + str(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()
+
+ def StatusbarUpdate(self):
+ """Update statusbar content"""
+
+ self.showRegion.Hide()
+ self.compResolution.Hide()
+ self.mapScale.Hide()
+ self.mapScaleValue = self.ppm = None
+
+ if self.toggleStatus.GetSelection() == 0: # Coordinates
+ self.statusbar.SetStatusText("", 0)
+ # enable long help
+ self.StatusbarEnableLongHelp()
+
+ elif self.toggleStatus.GetSelection() == 1: # Extent
+ self.statusbar.SetStatusText("%.2f - %.2f, %.2f - %.2f" %
+ (self.Map.region["w"], self.Map.region["e"],
+ self.Map.region["s"], self.Map.region["n"]), 0)
+ # enable long help
+ self.StatusbarEnableLongHelp()
+
+ elif self.toggleStatus.GetSelection() == 2: # Comp. region
+ compregion = self.Map.GetRegion()
+ self.statusbar.SetStatusText("%.2f - %.2f, %.2f - %.2f (%.2f, %.2f)" %
+ (compregion["w"], compregion["e"],
+ compregion["s"], compregion["n"],
+ compregion["ewres"], compregion["nsres"]), 0)
+ # enable long help
+ self.StatusbarEnableLongHelp()
+
+ elif self.toggleStatus.GetSelection() == 3: # Show comp. extent
+ self.statusbar.SetStatusText("", 0)
+ self.showRegion.Show()
+ # disable long help
+ self.StatusbarEnableLongHelp(False)
+
+ elif self.toggleStatus.GetSelection() == 4: # Display mode
+ self.statusbar.SetStatusText("", 0)
+ self.compResolution.Show()
+ # disable long help
+ self.StatusbarEnableLongHelp(False)
+
+ elif self.toggleStatus.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.toggleStatus.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("")
+ self.mapScale.SetValue("1:%ld" % scale)
+ self.mapScaleValue = scale
+ self.mapScale.Show()
+
+ # 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.showRegion),
+ (0, self.compResolution),
+ (0, self.mapScale),
+ (0, self.onRenderGauge),
+ (1, self.toggleStatus),
+ (2, self.autoRender)]
+ for idx, win in widgets:
+ rect = self.statusbar.GetFieldRect(idx)
+ if idx == 0: # show region / mapscale / process bar
+ # -> size
+ wWin, hWin = win.GetBestSize()
+ if win == self.onRenderGauge:
+ wWin = rect.width - 6
+ # -> position
+ # if win == self.showRegion:
+ # 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 == 2:
+ x += 5
+
+ win.SetPosition((x, y))
+ win.SetSize((w, h))
+
+ def SaveToFile(self, event):
+ """
+ Save image to file
+ """
+ filetype = "PNG file (*.png)|*.png|"\
+ "TIF file (*.tif)|*.tif|"\
+ "GIF file (*.gif)|*.gif"
+
+ dlg = wx.FileDialog(self, "Choose a file name to save the image as a PNG to",
+ defaultDir = "",
+ defaultFile = "",
+ wildcard = filetype,
+ style=wx.SAVE|wx.FD_OVERWRITE_PROMPT)
+ if dlg.ShowModal() == wx.ID_OK:
+ base = os.path.splitext(dlg.GetPath())[0]
+ ext = os.path.splitext(dlg.GetPath())[1]
+ if dlg.GetFilterIndex() == 0:
+ type = wx.BITMAP_TYPE_PNG
+ path = dlg.GetPath()
+ if ext != '.png': path = base+'.png'
+ elif dlg.GetFilterIndex() == 1:
+ type = wx.BITMAP_TYPE_TIF
+ if ext != '.tif': path = base+'.tif'
+ elif dlg.GetFilterIndex() == 2:
+ type = wx.BITMAP_TYPE_TIF
+ if ext != '.gif': path = base+'.gif'
+ self.MapWindow.SaveToFile(path, type)
+
+ dlg.Destroy()
+
+ def PrintMenu(self, event):
+ """
+ Print map display
+ """
+
+ """
+ Print options and output menu
+ """
+ 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 OnCloseWindow(self, event):
+ """
+ Window closed
+ Also close associated layer tree page
+ """
+ pgnum = None
+ self.Map.Clean()
+ if self.page:
+ pgnum = self.layerbook.GetPageIndex(self.page)
+ if pgnum > -1:
+ self.layerbook.DeletePage(pgnum)
+
+ #self.Destroy()
+
+ def GetRender(self):
+ """
+ Returns the current instance of render.Map()
+ """
+ return self.Map
+
+ def OnQueryDisplay(self, event):
+ """
+ Query currrent raster/vector map layers (display mode)
+ """
+ # switch GIS Manager to output console to show query results
+ self.gismanager.notebook.SetSelection(1)
+
+ self.MapWindow.mouse['use'] = "query"
+ self.MapWindow.mouse['box'] = "point"
+ self.MapWindow.zoomtype = 0
+
+ # change the cursor
+ self.MapWindow.SetCursor(self.cursors["cross"])
+
+ def OnQueryModify(self, event):
+ """
+ Query vector map layer (edit mode)
+ """
+ self.MapWindow.mouse['use'] = "queryVector"
+ self.MapWindow.mouse['box'] = "point"
+ self.MapWindow.zoomtype = 0
+
+ # change the cursor
+ self.MapWindow.SetCursor(self.cursors["cross"])
+
+ def QueryMap(self, x, y):
+ """
+ Query map layer features
+
+ Currently only raster and vector map layers are supported
+ """
+ #set query snap distance for v.what at mapunit equivalent of 10 pixels
+ qdist = 10.0 * ((self.Map.region['e'] - self.Map.region['w']) / self.Map.width)
+ east, north = self.MapWindow.Pixel2Cell((x, y))
+
+ if not self.tree.layer_selected:
+ dlg = wx.MessageDialog(parent=self,
+ message=_('No map layer selected for querying.'),
+ caption=_('Message'),
+ style=wx.OK | wx.ICON_INFORMATION)
+ dlg.ShowModal()
+ dlg.Destroy()
+ return
+
+ mapname = None
+ raststr = ''
+ vectstr = ''
+ rcmd = []
+ vcmd = []
+ for layer in self.tree.GetSelections():
+ type = self.tree.GetPyData(layer)[0]['maplayer'].type
+ dcmd = self.tree.GetPyData(layer)[0]['cmd']
+ name = utils.GetLayerNameFromCmd(dcmd)
+ if name == '':
+ continue
+ if type in ('raster', 'rgb', 'his'):
+ raststr += "%s," % name
+ elif type in ('vector', 'thememap', 'themechart'):
+ vectstr += "%s," % name
+
+ # build query commands for any selected rasters and vectors
+ if raststr != '':
+ rcmd = ['r.what', '--q',
+ '-f',
+ 'input=%s' % raststr.rstrip(','),
+ 'east_north=%f,%f' % (float(east), float(north))]
+
+ if vectstr != '':
+ vcmd = ['v.what', '--q',
+ '-a',
+ 'map=%s' % vectstr.rstrip(','),
+ 'east_north=%f,%f' % (float(east), float(north)),
+ 'distance=%f' % qdist]
+
+ # parse query command(s)
+ if self.gismanager:
+ if rcmd:
+ self.gismanager.goutput.RunCmd(rcmd)
+ if vcmd:
+ self.gismanager.goutput.RunCmd(vcmd)
+ else:
+ if rcmd:
+ gcmd.Command(rcmd)
+ if vcmd:
+ gcmd.Command(vcmd)
+
+ def QueryVector(self, x, y):
+ """
+ Query vector map layer features
+
+ Attribute data of selected vector object are displayed in GUI dialog.
+ Data can be modified (On Submit)
+ """
+ if not self.tree.layer_selected or \
+ self.tree.GetPyData(self.tree.layer_selected)[0]['type'] != 'vector':
+ wx.MessageBox(parent=self,
+ message=_("No vector map selected for querying."),
+ caption=_("Message"),
+ style=wx.OK | wx.ICON_INFORMATION | wx.CENTRE)
+ return
+
+ posWindow = self.ClientToScreen((x + self.MapWindow.dialogOffset,
+ y + self.MapWindow.dialogOffset))
+
+ qdist = 10.0 * ((self.Map.region['e'] - self.Map.region['w']) / \
+ self.Map.width)
+ east, north = self.MapWindow.Pixel2Cell((x, y))
+
+ mapName = self.tree.GetPyData(self.tree.layer_selected)[0]['maplayer'].name
+
+ if self.dialogs['attributes'] is None:
+ self.dialogs['attributes'] = dbm.DisplayAttributesDialog(parent=self.MapWindow,
+ map=mapName,
+ query=((east, north), qdist),
+ pos=posWindow,
+ action="update")
+ else:
+ # update currently open dialog
+ self.dialogs['attributes'].UpdateDialog(query=((east, north), qdist))
+
+ line = self.dialogs['attributes'].GetLine()
+ try:
+ qlayer = self.Map.GetListOfLayers(l_name=globalvar.QUERYLAYER)[0]
+ except IndexError:
+ qlayer = None
+
+ if self.dialogs['attributes'].mapDBInfo and line:
+ # highlight feature & re-draw map
+ if qlayer:
+ qlayer.SetCmd(self.AddTmpVectorMapLayer(mapName, line,
+ useId=True,
+ addLayer=False))
+ else:
+ self.AddTmpVectorMapLayer(mapName, line, useId=True)
+
+ self.MapWindow.UpdateMap(render=False, renderVector=False)
+ # digitClass.driver.SetSelected([line])
+ if not self.dialogs['attributes'].IsShown():
+ self.dialogs['attributes'].Show()
+ else:
+ if qlayer:
+ self.Map.DeleteLayer(qlayer)
+ self.MapWindow.UpdateMap(render=False, renderVector=False)
+ if self.dialogs['attributes'].IsShown():
+ self.dialogs['attributes'].Hide()
+
+ def OnQuery(self, event):
+ """Query tools menu"""
+ point = wx.GetMousePosition()
+ toolsmenu = wx.Menu()
+ # Add items to the menu
+ display = wx.MenuItem(toolsmenu, wx.ID_ANY, Icons["queryDisplay"].GetLabel())
+ toolsmenu.AppendItem(display)
+ self.Bind(wx.EVT_MENU, self.OnQueryDisplay, display)
+
+ modify = wx.MenuItem(toolsmenu, wx.ID_ANY, Icons["queryModify"].GetLabel())
+ toolsmenu.AppendItem(modify)
+ self.Bind(wx.EVT_MENU, self.OnQueryModify, modify)
+
+ self.PopupMenu(toolsmenu)
+ toolsmenu.Destroy()
+
+ def AddTmpVectorMapLayer(self, name, cats, useId=False, addLayer=True):
+ """
+ Add temporal vector map layer to map composition
+
+ @param name name of map layer
+ @param useId use feature id instead of category
+ """
+ # color settings from ATM
+ color = UserSettings.Get(group='atm', key='highlight', subkey='color')
+ colorStr = str(color[0]) + ":" + \
+ str(color[1]) + ":" + \
+ str(color[2])
+
+ cmd = ["d.vect",
+ "map=%s" % name,
+ "color=%s" % colorStr,
+ "fcolor=%s" % colorStr,
+ "width=%d" % UserSettings.Get(group='atm', key='highlight', subkey='width')]
+
+ if useId:
+ cmd.append('-i')
+ cmd.append('cats=%s' % str(cats))
+ else:
+ cmd.append("cats=%s" % utils.ListOfCatsToRange(cats))
+
+ # if self.icon:
+ # cmd.append("icon=%s" % (self.icon))
+ # if self.pointsize:
+ # cmd.append("size=%s" % (self.pointsize))
+
+ if addLayer:
+ return self.Map.AddLayer(type='vector', name=globalvar.QUERYLAYER, command=cmd,
+ l_active=True, l_hidden=True, l_opacity=1.0)
+ else:
+ return cmd
+
+ def OnAnalyze(self, event):
+ """
+ Analysis tools menu
+ """
+ point = wx.GetMousePosition()
+ toolsmenu = wx.Menu()
+ # Add items to the menu
+ measure = wx.MenuItem(toolsmenu, wx.ID_ANY, Icons["measure"].GetLabel())
+ measure.SetBitmap(Icons["measure"].GetBitmap(self.iconsize))
+ toolsmenu.AppendItem(measure)
+ self.Bind(wx.EVT_MENU, self.OnMeasure, measure)
+
+ profile = wx.MenuItem(toolsmenu, wx.ID_ANY, Icons["profile"].GetLabel())
+ profile.SetBitmap(Icons["profile"].GetBitmap(self.iconsize))
+ toolsmenu.AppendItem(profile)
+ self.Bind(wx.EVT_MENU, self.Profile, profile)
+
+ histogram = wx.MenuItem(toolsmenu, wx.ID_ANY, Icons["histogram"].GetLabel())
+ histogram.SetBitmap(Icons["histogram"].GetBitmap(self.iconsize))
+ toolsmenu.AppendItem(histogram)
+ self.Bind(wx.EVT_MENU, self.Histogram, histogram)
+
+ # Popup the menu. If an item is selected then its handler
+ # will be called before PopupMenu returns.
+ self.PopupMenu(toolsmenu)
+ toolsmenu.Destroy()
+
+ def OnMeasure(self, event):
+ """
+ Init measurement routine that calculates
+ map distance along transect drawn on
+ map display
+ """
+
+ self.totaldist = 0.0 # total measured distance
+
+ # switch GIS Manager to output console to show measure results
+ self.gismanager.notebook.SetSelection(1)
+
+ # change mouse to draw line for measurement
+ self.MapWindow.mouse['use'] = "measure"
+ self.MapWindow.mouse['box'] = "line"
+ self.MapWindow.zoomtype = 0
+ self.MapWindow.pen = wx.Pen(colour='red', width=2, style=wx.SHORT_DASH)
+ self.MapWindow.polypen = wx.Pen(colour='green', width=2, style=wx.SHORT_DASH)
+
+ # change the cursor
+ self.MapWindow.SetCursor(self.cursors["pencil"])
+
+ # initiating output
+ style = self.gismanager.goutput.cmd_output.StyleWarning
+ self.gismanager.goutput.WriteLog(_('Click and drag with left mouse button '
+ 'to measure.%s'
+ 'Double click with left button to clear.') % \
+ (os.linesep), style)
+ if self.projinfo['proj'] != 'xy':
+ units = self.projinfo['units']
+ style = self.gismanager.goutput.cmd_output.StyleCommand
+ self.gismanager.goutput.WriteLog(_('Measuring distance') + ' ('
+ + units + '):',
+ style)
+ else:
+ self.gismanager.goutput.WriteLog(_('Measuring distance:'),
+ style)
+
+ def MeasureDist(self, beginpt, endpt):
+ """
+ Calculate map distance from screen distance
+ and print to output window
+ """
+
+ if self.gismanager.notebook.GetSelection() != 1:
+ self.gismanager.notebook.SetSelection(1)
+
+ dist, (north, east) = self.MapWindow.Distance(beginpt, endpt)
+
+ dist = round(dist, 3)
+ d, dunits = self.FormatDist(dist)
+
+ self.totaldist += dist
+ td, tdunits = self.FormatDist(self.totaldist)
+
+ strdist = str(d)
+ strtotdist = str(td)
+
+ if self.projinfo['proj'] == 'xy' or 'degree' not in self.projinfo['unit']:
+ angle = int(math.degrees(math.atan2(north,east)) + 0.5)
+ angle = angle+90
+ if angle < 0: angle = 360+angle
+
+ mstring = 'segment = %s %s\ttotal distance = %s %s\tbearing = %d deg' \
+ % (strdist,dunits,strtotdist,tdunits,angle)
+ else:
+ mstring = 'segment = %s %s\ttotal distance = %s %s' \
+ % (strdist,dunits,strtotdist,tdunits)
+
+ self.gismanager.goutput.WriteLog(mstring)
+
+ return dist
+
+ def Profile(self, event):
+ """
+ Init profile canvas and tools
+ """
+ raster = []
+ if self.tree.layer_selected and \
+ self.tree.GetPyData(self.tree.layer_selected)[0]['type'] == 'raster':
+ raster.append(self.tree.GetPyData(self.tree.layer_selected)[0]['maplayer'].name)
+
+ self.profile = profile.ProfileFrame(self,
+ id=wx.ID_ANY, pos=wx.DefaultPosition, size=(700,300),
+ style=wx.DEFAULT_FRAME_STYLE, rasterList=raster)
+ self.profile.Show()
+
+ 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.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 Histogram(self, event):
+ """
+ Init histogram display canvas and tools
+ """
+ self.histogram = histogram.HistFrame(self,
+ id=wx.ID_ANY, size=globalvar.HIST_WINDOW_SIZE,
+ style=wx.DEFAULT_FRAME_STYLE)
+
+ #show new display
+ self.histogram.Show()
+ self.histogram.Refresh()
+ self.histogram.Update()
+
+
+ def OnDecoration(self, event):
+ """
+ Decorations overlay menu
+ """
+ point = wx.GetMousePosition()
+ decmenu = wx.Menu()
+ # Add items to the menu
+ AddScale = wx.MenuItem(decmenu, wx.ID_ANY, Icons["addbarscale"].GetLabel())
+ AddScale.SetBitmap(Icons["addbarscale"].GetBitmap(self.iconsize))
+ decmenu.AppendItem(AddScale)
+ self.Bind(wx.EVT_MENU, self.OnAddBarscale, AddScale)
+
+ AddLegend = wx.MenuItem(decmenu, wx.ID_ANY, Icons["addlegend"].GetLabel())
+ AddLegend.SetBitmap(Icons["addlegend"].GetBitmap(self.iconsize))
+ decmenu.AppendItem(AddLegend)
+ self.Bind(wx.EVT_MENU, self.OnAddLegend, AddLegend)
+
+ AddText = wx.MenuItem(decmenu, wx.ID_ANY, Icons["addtext"].GetLabel())
+ AddText.SetBitmap(Icons["addtext"].GetBitmap(self.iconsize))
+ decmenu.AppendItem(AddText)
+ self.Bind(wx.EVT_MENU, self.OnAddText, AddText)
+
+ # Popup the menu. If an item is selected then its handler
+ # will be called before PopupMenu returns.
+ self.PopupMenu(decmenu)
+ decmenu.Destroy()
+
+ def OnAddBarscale(self, event):
+ """
+ Handler for scale/arrow map decoration menu selection.
+ """
+ if self.dialogs['barscale']:
+ return
+
+ id = 0 # unique index for overlay layer
+
+ # If location is latlon, only display north arrow (scale won't work)
+ # proj = self.projinfo['proj']
+ # if proj == 'll':
+ # barcmd = 'd.barscale -n'
+ # else:
+ # barcmd = 'd.barscale'
+
+ # decoration overlay control dialog
+ self.dialogs['barscale'] = \
+ gdialogs.DecorationDialog(parent=self, title=_('Scale and North arrow'),
+ size=(350, 200),
+ style=wx.DEFAULT_DIALOG_STYLE | wx.CENTRE,
+ cmd=['d.barscale'],
+ ovlId=id,
+ name='barscale',
+ checktxt = _("Show/hide scale and North arrow"),
+ ctrltxt = _("scale object"))
+
+ self.dialogs['barscale'].Show()
+
+ def OnAddLegend(self, event):
+ """
+ Handler for legend map decoration menu selection.
+ """
+ if self.dialogs['legend']:
+ return
+
+ id = 1 # index for overlay layer in render
+
+ cmd = ['d.legend']
+ if self.tree.layer_selected and \
+ self.tree.GetPyData(self.tree.layer_selected)[0]['type'] == 'raster':
+ cmd.append('map=%s' % self.tree.GetPyData(self.tree.layer_selected)[0]['maplayer'].name)
+
+ # Decoration overlay control dialog
+ self.dialogs['legend'] = \
+ gdialogs.DecorationDialog(parent=self, title=('Legend'),
+ size=(350, 200),
+ style=wx.DEFAULT_DIALOG_STYLE | wx.CENTRE,
+ cmd=cmd,
+ ovlId=id,
+ name='legend',
+ checktxt = _("Show/hide legend"),
+ ctrltxt = _("legend object"))
+
+ self.dialogs['legend'].Show()
+
+ def OnAddText(self, event):
+ """
+ Handler for text decoration menu selection.
+ """
+
+ id = 2 # index for overlay layer in render
+
+ # default values
+ text = ''
+ font = self.GetFont()
+ color = wx.BLACK
+ coords = [10, 10, 10, 10]
+ rotation = 0.0
+
+ # if self.MapWindow.currtxtid == None: # text doesn't already exist
+ # id = wx.NewId() + 100
+ # else: # text already exists
+ # id = self.MapWindow.currtxtid
+ # textcoords = self.ovlcoords[id]
+
+ dlg = gdialogs.TextLayerDialog(parent=self, ovlId=id, title=_('Add text layer'),
+ size=(400, 200))
+
+ dlg.CenterOnScreen()
+
+ # If OK button pressed in decoration control dialog
+ if dlg.ShowModal() == wx.ID_OK:
+ text = dlg.GetValues()[0]
+ coords, w, h = self.MapWindow.TextBounds(dlg.GetValues(),
+ coords)
+ # delete object if it has no text
+ if text == '':
+ try:
+ self.MapWindow.pdc.ClearId(id)
+ self.MapWindow.pdc.RemoveId(id)
+ del self.MapWindow.textdict[id]
+ # del self.ovlcoords[id]
+ except:
+ pass
+ return
+
+ self.MapWindow.pdc.ClearId(id)
+ self.MapWindow.pdc.SetId(id)
+ self.MapWindow.textdict[id] = (text, font, color, rotation)
+ self.MapWindow.Draw(self.MapWindow.pdc, img=self.MapWindow.textdict[id],
+ drawid=id, pdctype='text', coords=coords)
+
+ self.MapWindow.UpdateMap(render=False, renderVector=False)
+
+ def GetOptData(self, dcmd, type, params, propwin):
+ """
+ Callback method for decoration overlay command generated by
+ dialog created in menuform.py
+ """
+ # Reset comand and rendering options in render.Map. Always render decoration.
+ # Showing/hiding handled by PseudoDC
+ self.Map.ChangeOverlay(ovltype=type, type='overlay', name='', command=dcmd,
+ l_active=True, l_render=False)
+ self.params[type] = params
+ self.propwin[type] = propwin
+
+ def OnZoomMenu(self, event):
+ """
+ Zoom menu
+ """
+ point = wx.GetMousePosition()
+ zoommenu = wx.Menu()
+ # Add items to the menu
+ zoommap = wx.MenuItem(zoommenu, wx.ID_ANY, _('Zoom to selected map'))
+ zoommenu.AppendItem(zoommap)
+ self.Bind(wx.EVT_MENU, self.MapWindow.ZoomToMap, zoommap)
+
+ zoomwind = wx.MenuItem(zoommenu, wx.ID_ANY, _('Zoom to computational region (set with g.region)'))
+ zoommenu.AppendItem(zoomwind)
+ self.Bind(wx.EVT_MENU, self.MapWindow.ZoomToWind, zoomwind)
+
+ zoomdefault = wx.MenuItem(zoommenu, wx.ID_ANY, _('Zoom to default region'))
+ zoommenu.AppendItem(zoomdefault)
+ self.Bind(wx.EVT_MENU, self.MapWindow.ZoomToDefault, zoomdefault)
+
+ zoomsaved = wx.MenuItem(zoommenu, wx.ID_ANY, _('Zoom to saved region'))
+ zoommenu.AppendItem(zoomsaved)
+ self.Bind(wx.EVT_MENU, self.MapWindow.ZoomToSaved, zoomsaved)
+
+ savewind = wx.MenuItem(zoommenu, wx.ID_ANY, _('Set computational region from display'))
+ zoommenu.AppendItem(savewind)
+ self.Bind(wx.EVT_MENU, self.MapWindow.DisplayToWind, savewind)
+
+ savezoom = wx.MenuItem(zoommenu, wx.ID_ANY, _('Save display geometry to named region'))
+ zoommenu.AppendItem(savezoom)
+ self.Bind(wx.EVT_MENU, self.MapWindow.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):
+ """Set properies of map display window"""
+ self.autoRender.SetValue(render)
+ self.toggleStatus.SetSelection(mode)
+ self.StatusbarUpdate()
+ self.showRegion.SetValue(showCompExtent)
+ if showCompExtent:
+ self.MapWindow.regionCoords = []
+
+# end of class MapFrame
+
+class MapApp(wx.App):
+ """
+ MapApp class
+ """
+
+ def OnInit(self):
+ wx.InitAllImageHandlers()
+ if __name__ == "__main__":
+ Map = render.Map() # instance of Map class to render GRASS display output to PPM file
+ else:
+ Map = None
+
+ self.mapFrm = MapFrame(parent=None, id=wx.ID_ANY, Map=Map, size=(640,480))
+ #self.SetTopWindow(Map)
+ self.mapFrm.Show()
+
+ if __name__ == "__main__":
+ # redraw map, if new command appears
+ self.redraw = False
+ status = Command(self, Map)
+ status.start()
+ self.timer = wx.PyTimer(self.watcher)
+ # check each 0.1s
+ self.timer.Start(100)
+
+ return 1
+
+ def OnExit(self):
+ if __name__ == "__main__":
+ # stop the timer
+ self.timer.Stop()
+ # terminate thread (a bit ugly)
+ os.system("""echo "quit" >> %s""" % (cmdfilename))
+
+ def watcher(self):
+ """Redraw, if new layer appears"""
+ if self.redraw:
+ self.mapFrm.OnDraw(None)
+ self.redraw = False
+ return
+# end of class MapApp
+
+if __name__ == "__main__":
+
+ ###### SET command variable
+ if len(sys.argv) != 3:
+ print __doc__
+ sys.exit()
+
+ title = sys.argv[1]
+ cmdfilename = sys.argv[2]
+
+ import gettext
+ gettext.install("gm_map") # replace with the appropriate catalog name
+
+ print "Starting monitor <%s>" % (title)
+
+ gm_map = MapApp(0)
+ # set title
+ gm_map.mapFrm.SetTitle ("GRASS GIS - Map Display: " + title + " - Location: " + \
+ grassenv.GetGRASSVariable("LOCATION_NAME"))
+ gm_map.MainLoop()
+
+ if grassenv.env.has_key("MONITOR"):
+ os.system("d.mon sel=%s" % grassenv.GetGRASSVariable("MONITOR"))
+
+ os.remove(cmdfilename)
+ os.system("""g.gisenv set="GRASS_PYCMDFILE" """)
+
+ print "Stoping monitor <%s>" % (title)
+
+ sys.exit()
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