""" @package web_services.widgets @brief Widgets for web services (WMS, WMTS, NasaOnEarh) List of classes: - widgets::WSPanel - widgets::LayersList (C) 2012-2013 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. @author Martin Landa @author Stepan Turek """ import re import os import sys import six import shutil from copy import deepcopy from core import globalvar try: from xml.etree.ElementTree import ParseError except ImportError: # < Python 2.7 from xml.parsers.expat import ExpatError as ParseError import wx if globalvar.wxPythonPhoenix: try: import agw.flatnotebook as FN except ImportError: # if it's not there locally, try the wxPython lib. import wx.lib.agw.flatnotebook as FN else: import wx.lib.flatnotebook as FN import wx.lib.colourselect as csel from core.debug import Debug from core.gcmd import GMessage from core.gconsole import CmdThread, GStderr, EVT_CMD_DONE, EVT_CMD_OUTPUT from web_services.cap_interface import ( WMSCapabilities, WMTSCapabilities, OnEarthCapabilities, ) from gui_core.widgets import GNotebook from gui_core.widgets import ManageSettingsWidget from gui_core.wrap import ( Button, ScrolledPanel, SpinCtrl, StaticBox, StaticText, TextCtrl, TreeCtrl, ) import grass.script as grass rinwms_path = os.path.join(os.getenv("GISBASE"), "etc", "r.in.wms") if rinwms_path not in sys.path: sys.path.append(rinwms_path) from wms_base import WMSDriversInfo from srs import Srs from grass.pydispatch.signal import Signal class WSPanel(wx.Panel): def __init__(self, parent, web_service, **kwargs): """Show data from capabilities file. Signal: capParsed - this signal is emitted when capabilities file is downloaded (after ConnectToServer method was called) :param parent: parent widget :param web_service: web service to be panel generated for """ wx.Panel.__init__(self, parent=parent, id=wx.ID_ANY) self.parent = parent self.ws = web_service self.capParsed = Signal("WSPanel.capParsed") # stores widgets, which represents parameters/flags of d.wms self.params = {} self.flags = {} self.o_layer_name = "" # stores err output from r.in.wms during getting capabilities self.cmd_err_str = "" # stores selected layer from layer list self.sel_layers = [] # downloaded and parsed data from server successfully? self.is_connected = False # common part of command for r.in.wms -c and d.wms self.ws_cmdl = None # provides information about driver parameters self.drv_info = WMSDriversInfo() self.drv_props = self.drv_info.GetDrvProperties(self.ws) self.ws_drvs = { "WMS_1.1.1": { "cmd": ["wms_version=1.1.1", "driver=WMS_GRASS"], "cap_parser": lambda temp_file: WMSCapabilities(temp_file, "1.1.1"), }, "WMS_1.3.0": { "cmd": ["wms_version=1.3.0", "driver=WMS_GRASS"], "cap_parser": lambda temp_file: WMSCapabilities(temp_file, "1.3.0"), }, "WMTS": { "cmd": ["driver=WMTS_GRASS"], "cap_parser": WMTSCapabilities, }, "OnEarth": { "cmd": ["driver=OnEarth_GRASS"], "cap_parser": OnEarthCapabilities, }, } self.cmdStdErr = GStderr(self) self.cmd_thread = CmdThread(self) self.cap_file = grass.tempfile() reqDataBox = StaticBox(parent=self, label=_(" Requested data settings ")) self._nb_sizer = wx.StaticBoxSizer(reqDataBox, wx.VERTICAL) self.notebook = GNotebook(parent=self, style=FN.FNB_NO_X_BUTTON | FN.FNB_NODRAG) self._requestPage() self._advancedSettsPage() self._layout() self.layerSelected = self.list.layerSelected self.Bind(EVT_CMD_DONE, self.OnCapDownloadDone) self.Bind(EVT_CMD_OUTPUT, self.OnCmdOutput) self.SetMinSize((-1, 300)) def __del__(self): self.cmd_thread.abort(abortall=True) grass.try_remove(self.cap_file) def _layout(self): self._nb_sizer.Add(self.notebook, proportion=1, flag=wx.EXPAND) self.SetSizer(self._nb_sizer) def _requestPage(self): """Create request page""" self.req_page_panel = wx.Panel(parent=self, id=wx.ID_ANY) self.notebook.AddPage( page=self.req_page_panel, text=_("Request"), name="request" ) # list of layers self.layersBox = StaticBox( parent=self.req_page_panel, id=wx.ID_ANY, label=_("List of layers ") ) style = wx.TR_DEFAULT_STYLE | wx.TR_HAS_BUTTONS | wx.TR_FULL_ROW_HIGHLIGHT if self.drv_props["req_multiple_layers"]: style = style | wx.TR_MULTIPLE if "WMS" not in self.ws: style = style | wx.TR_HIDE_ROOT self.list = LayersList( parent=self.req_page_panel, web_service=self.ws, style=style ) self.params["format"] = None self.params["srs"] = None if "srs" not in self.drv_props["ignored_params"]: projText = StaticText( parent=self.req_page_panel, id=wx.ID_ANY, label=_("Source projection:") ) self.params["srs"] = wx.Choice(parent=self.req_page_panel, id=wx.ID_ANY) self.list.Bind(wx.EVT_TREE_SEL_CHANGED, self.OnListSelChanged) # layout self.req_page_sizer = wx.BoxSizer(wx.VERTICAL) layersSizer = wx.StaticBoxSizer(self.layersBox, wx.HORIZONTAL) layersSizer.Add( self.list, proportion=1, flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.EXPAND, border=5, ) self.req_page_sizer.Add( layersSizer, proportion=1, flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.EXPAND, border=5, ) self.source_sizer = wx.BoxSizer(wx.HORIZONTAL) if self.params["format"] is not None: self.source_sizer.Add( self.params["format"], flag=wx.LEFT | wx.RIGHT | wx.BOTTOM, border=5 ) if self.params["srs"] is not None: self.source_sizer.Add( projText, flag=wx.ALIGN_CENTER_VERTICAL | wx.ALL, border=5 ) self.source_sizer.Add( self.params["srs"], flag=wx.ALIGN_CENTER_VERTICAL | wx.RIGHT | wx.TOP | wx.BOTTOM, border=5, ) self.req_page_sizer.Add( self.source_sizer, flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.EXPAND, border=5 ) self.req_page_panel.SetSizer(self.req_page_sizer) def enableButtons(self, enable=True): """Enable/disable up, down, buttons""" self.btnUp.Enable(enable) self.btnDown.Enable(enable) def _advancedSettsPage(self): """Create advanced settings page""" # TODO parse maxcol, maxrow, settings from d.wms module? # TODO OnEarth driver - add selection of time adv_setts_panel = ScrolledPanel( parent=self, id=wx.ID_ANY, style=wx.TAB_TRAVERSAL | wx.SUNKEN_BORDER ) self.notebook.AddPage( page=adv_setts_panel, text=_("Advanced request settings"), name="adv_req_setts", ) labels = {} self.l_odrder_list = None if "WMS" in self.ws: labels["l_order"] = StaticBox( parent=adv_setts_panel, id=wx.ID_ANY, label=_("Order of layers in raster"), ) self.l_odrder_list = wx.ListBox( adv_setts_panel, id=wx.ID_ANY, choices=[], style=wx.LB_SINGLE | wx.LB_NEEDED_SB, ) self.btnUp = Button(adv_setts_panel, id=wx.ID_ANY, label=_("Up")) self.btnDown = Button(adv_setts_panel, id=wx.ID_ANY, label=_("Down")) self.btnUp.Bind(wx.EVT_BUTTON, self.OnUp) self.btnDown.Bind(wx.EVT_BUTTON, self.OnDown) labels["method"] = StaticText( parent=adv_setts_panel, id=wx.ID_ANY, label=_("Reprojection method:") ) self.reproj_methods = ["nearest", "linear", "cubic", "cubicspline"] self.params["method"] = wx.Choice( parent=adv_setts_panel, id=wx.ID_ANY, choices=[ _("Nearest neighbor"), _("Linear interpolation"), _("Cubic interpolation"), _("Cubic spline interpolation"), ], ) labels["maxcols"] = StaticText( parent=adv_setts_panel, id=wx.ID_ANY, label=_("Maximum columns to request from server at time:"), ) self.params["maxcols"] = SpinCtrl( parent=adv_setts_panel, id=wx.ID_ANY, size=(100, -1) ) labels["maxrows"] = StaticText( parent=adv_setts_panel, id=wx.ID_ANY, label=_("Maximum rows to request from server at time:"), ) self.params["maxrows"] = SpinCtrl( parent=adv_setts_panel, id=wx.ID_ANY, size=(100, -1) ) min = 100 max = 10000 self.params["maxcols"].SetRange(min, max) self.params["maxrows"].SetRange(min, max) val = 500 self.params["maxcols"].SetValue(val) self.params["maxrows"].SetValue(val) self.flags["o"] = self.params["bgcolor"] = None if "o" not in self.drv_props["ignored_flags"]: self.flags["o"] = wx.CheckBox( parent=adv_setts_panel, id=wx.ID_ANY, label=_("Do not request transparent data"), ) self.flags["o"].Bind(wx.EVT_CHECKBOX, self.OnTransparent) labels["bgcolor"] = StaticText( parent=adv_setts_panel, id=wx.ID_ANY, label=_("Background color:") ) self.params["bgcolor"] = csel.ColourSelect( parent=adv_setts_panel, id=wx.ID_ANY, colour=(255, 255, 255), size=globalvar.DIALOG_COLOR_SIZE, ) self.params["bgcolor"].Enable(False) self.params["urlparams"] = None if self.params["urlparams"] not in self.drv_props["ignored_params"]: labels["urlparams"] = StaticText( parent=adv_setts_panel, id=wx.ID_ANY, label=_("Additional query parameters for server:"), ) self.params["urlparams"] = TextCtrl(parent=adv_setts_panel, id=wx.ID_ANY) # layout border = wx.BoxSizer(wx.VERTICAL) if "WMS" in self.ws: boxSizer = wx.StaticBoxSizer(labels["l_order"], wx.VERTICAL) gridSizer = wx.GridBagSizer(hgap=3, vgap=3) gridSizer.Add( self.l_odrder_list, pos=(0, 0), span=(4, 1), flag=wx.ALIGN_CENTER_VERTICAL | wx.EXPAND, border=0, ) gridSizer.Add( self.btnUp, pos=(0, 1), flag=wx.ALIGN_CENTER_VERTICAL, border=0 ) gridSizer.Add( self.btnDown, pos=(1, 1), flag=wx.ALIGN_CENTER_VERTICAL, border=0 ) gridSizer.AddGrowableCol(0) boxSizer.Add(gridSizer, flag=wx.EXPAND | wx.ALL, border=5) border.Add(boxSizer, flag=wx.LEFT | wx.RIGHT | wx.UP | wx.EXPAND, border=5) gridSizer = wx.GridBagSizer(hgap=3, vgap=3) row = 0 for k in ["method", "maxcols", "maxrows", "o", "bgcolor"]: if k in self.params: param = self.params[k] elif k in self.flags: param = self.flags[k] if param is None: continue if k in labels or k == "o": if k != "o": label = labels[k] else: label = param gridSizer.Add( label, flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL, pos=(row, 0) ) if k != "o": gridSizer.Add( param, flag=wx.ALIGN_RIGHT | wx.ALIGN_CENTER_VERTICAL, pos=(row, 1) ) row += 1 gridSizer.AddGrowableCol(0) border.Add(gridSizer, flag=wx.LEFT | wx.RIGHT | wx.TOP | wx.EXPAND, border=5) if self.params["urlparams"]: gridSizer = wx.GridBagSizer(hgap=3, vgap=3) row = 0 gridSizer.Add( labels["urlparams"], flag=wx.ALIGN_LEFT | wx.ALIGN_CENTER_VERTICAL, pos=(row, 0), ) gridSizer.Add( self.params["urlparams"], flag=wx.ALIGN_RIGHT | wx.ALIGN_CENTER_VERTICAL | wx.EXPAND, pos=(row, 1), ) gridSizer.AddGrowableCol(1) border.Add( gridSizer, flag=wx.LEFT | wx.RIGHT | wx.TOP | wx.EXPAND, border=5 ) adv_setts_panel.SetSizer(border) adv_setts_panel.SetAutoLayout(True) adv_setts_panel.SetupScrolling() def OnUp(self, event): """Move selected layer up""" if self.l_odrder_list.GetSelections(): pos = self.l_odrder_list.GetSelection() if pos: self.sel_layers.insert(pos - 1, self.sel_layers.pop(pos)) if pos > 0: self._updateLayerOrderList(selected=(pos - 1)) else: self._updateLayerOrderList(selected=0) def OnDown(self, event): """Move selected to down""" if self.l_odrder_list.GetSelections(): pos = self.l_odrder_list.GetSelection() if pos != len(self.sel_layers) - 1: self.sel_layers.insert(pos + 1, self.sel_layers.pop(pos)) if pos < len(self.sel_layers) - 1: self._updateLayerOrderList(selected=(pos + 1)) else: self._updateLayerOrderList(selected=len(self.sel_layers) - 1) def _updateLayerOrderList(self, selected=None): """Update order in list.""" def getlayercaption(l): if l["title"]: cap = l["title"] else: cap = l["name"] if l["style"]: if l["style"]["title"]: cap += " / " + l["style"]["title"] else: cap += " / " + l["style"]["name"] return cap layer_capts = [getlayercaption(l) for l in self.sel_layers] self.l_odrder_list.Set(layer_capts) if self.l_odrder_list.IsEmpty(): self.enableButtons(False) else: self.enableButtons(True) if selected is not None: self.l_odrder_list.SetSelection(selected) self.l_odrder_list.EnsureVisible(selected) def OnTransparent(self, event): checked = event.IsChecked() if checked: self.params["bgcolor"].Enable(True) else: self.params["bgcolor"].Enable(False) def ConnectToServer(self, url, username, password): """Download and parse data from capabilities file. :param url: server url :type url: str :param username: username for connection :type username: str :param password: password for connection :type password: str """ self._prepareForNewConn(url, username, password) cap_cmd = [ "r.in.wms", "-c", ("capfile_output=%s" % self.cap_file), "--overwrite", ] + self.ws_cmdl self.currentPid = self.cmd_thread.GetId() self.cmd_thread.RunCmd(cap_cmd, stderr=self.cmdStdErr) def OnCmdOutput(self, event): """Manage cmd output.""" if Debug.GetLevel() != 0: Debug.msg(1, event.text) elif event.type != "message" and event.type != "warning": self.cmd_err_str += event.text + os.linesep def _prepareForNewConn(self, url, username, password): """Prepare panel for new connection""" self.is_connected = False self.sel_layers = [] self.formats_list = [] self.projs_list = [] self.conn = {"url": url, "password": password, "username": username} conn_cmd = [] for k, v in six.iteritems(self.conn): if v: conn_cmd.append("%s=%s" % (k, v)) self.ws_cmdl = self.ws_drvs[self.ws]["cmd"] + conn_cmd def OnCapDownloadDone(self, event): """Process downloaded capabilities file and emits capParsed signal (see class constructor). """ if event.pid != self.currentPid: return if event.returncode != 0: if self.cmd_err_str: self.cmd_err_str = ( _( "Unable to download %s capabilities file\nfrom <%s>:\n" % (self.ws.replace("_", " "), self.conn["url"]) ) + self.cmd_err_str ) self._postCapParsedEvt(error_msg=self.cmd_err_str) self.cmd_err_str = "" return self._parseCapFile(self.cap_file) def _parseCapFile(self, cap_file): """Parse capabilities data and emits capParsed signal (see class constructor). """ try: self.cap = self.ws_drvs[self.ws]["cap_parser"](cap_file) except (IOError, ParseError) as error: error_msg = _( "%s web service was not found in fetched capabilities file from <%s>:\n%s\n" % (self.ws, self.conn["url"], str(error)) ) if Debug.GetLevel() != 0: Debug.msg(1, error_msg) self._postCapParsedEvt(None) else: self._postCapParsedEvt(error_msg=error_msg) return self.is_connected = True # WMS standard has formats defined for all layers if "WMS" in self.ws: self.formats_list = sorted(self._getFormats()) self._updateFormatRadioBox(self.formats_list) self._setDefaultFormatVal() self.list.LoadData(self.cap) self.OnListSelChanged(event=None) self._postCapParsedEvt(None) def ParseCapFile( self, url, username, password, cap_file=None, ): """Parse capabilities data and emits capParsed signal (see class constructor). """ self._prepareForNewConn(url, username, password) if cap_file is None or not url: self._postCapParsedEvt(None) return shutil.copyfile(cap_file, self.cap_file) self._parseCapFile(self.cap_file) def UpdateWidgetsByCmd(self, cmd): """Update panel widgets accordnig to passed cmd tuple :param cmd: cmd in tuple """ dcmd = cmd[1] layers = [] if "layers" in dcmd: layers = dcmd["layers"] styles = [] if "styles" in dcmd: styles = dcmd["styles"] if "WMS" in self.ws: layers = layers.split(",") styles = styles.split(",") else: layers = [layers] styles = [styles] if len(layers) != len(styles): styles = [""] * len(layers) l_st_list = [] for i in range(len(layers)): l_st_list.append({"style": styles[i], "layer": layers[i]}) # WMS standard - first layer in params is most bottom... # therefore layers order need to be reversed l_st_list = [l for l in reversed(l_st_list)] self.list.SelectLayers(l_st_list) params = {} if "format" in dcmd: params["format"] = dcmd["format"] if "srs" in dcmd: params["srs"] = "EPSG:" + dcmd["srs"] if "method" in dcmd: params["method"] = dcmd["method"] for p, v in six.iteritems(params): if self.params[p]: self.params[p].SetStringSelection(v) for p, conv_f in [("urlparams", None), ("maxcols", int), ("maxrows", int)]: if p in dcmd: v = dcmd[p] if conv_f: v = conv_f(v) self.params[p].SetValue(v) if "flags" in dcmd and "o" in dcmd["flags"]: self.flags["o"].SetValue(1) self.params["bgcolor"].Enable(True) if "bgcolor" in dcmd and self.params["bgcolor"]: bgcolor = dcmd["bgcolor"].strip().lower() if len(bgcolor) == 8 and "0x" == bgcolor[:2]: colour = "#" + bgcolor[2:] self.params["bgcolor"].SetColour(colour) def IsConnected(self): """Was successful in downloading and parsing capabilities data?""" return self.is_connected def _postCapParsedEvt(self, error_msg): """Helper function""" self.capParsed.emit(error_msg=error_msg) def CreateCmd(self): """Create d.wms cmd from values of panels widgets :return: cmd list :return: None if required widgets do not have selected/filled values. """ # check required widgets if not self._checkImportValues(): return None # create d.wms command lcmd = self.ws_cmdl lcmd = ["d.wms"] + lcmd layers = "layers=" styles = "styles=" first = True # WMS standard - first layer in params is most bottom... # therefore layers order need to be reversed for layer in reversed(self.sel_layers): if not first: layers += "," styles += "," first = False layers += layer["name"] if layer["style"] is not None: styles += layer["style"]["name"] lcmd.append(layers) lcmd.append(styles) if "format" not in self.drv_props["ignored_params"]: i_format = self.params["format"].GetSelection() lcmd.append("format=%s" % self.formats_list[i_format]) if "srs" not in self.drv_props["ignored_params"]: i_srs = self.params["srs"].GetSelection() srs = self.projs_list[i_srs].split(":")[-1] epsg_num = int("".join(re.findall(r"\d+", srs))) lcmd.append("srs=%s" % epsg_num) for k in ["maxcols", "maxrows", "urlparams"]: lcmd.append(k + "=" + str(self.params[k].GetValue())) i_method = self.params["method"].GetSelection() lcmd.append("method=" + self.reproj_methods[i_method]) if "o" not in self.drv_props["ignored_flags"] and self.flags["o"].IsChecked(): lcmd.append("-o") c = self.params["bgcolor"].GetColour() hex_color = wx.Colour(c[0], c[1], c[2]).GetAsString(wx.C2S_HTML_SYNTAX) lcmd.append("bgcolor=" + "0x" + hex_color[1:]) lcmd.append("map=" + self.o_layer_name) return lcmd def OnListSelChanged(self, event): """Update widgets according to selected layer in list.""" curr_sel_ls = self.list.GetSelectedLayers() # update self.sel_layers (selected layer list) if "WMS" in self.ws: for sel_l in self.sel_layers[:]: if sel_l not in curr_sel_ls: self.sel_layers.remove(sel_l) for l in curr_sel_ls: if l not in self.sel_layers: self.sel_layers.append(l) self._updateLayerOrderList() else: self.sel_layers = curr_sel_ls # update projection self.projs_list = [] projs_list = [] intersect_proj = [] first = True for l in curr_sel_ls: layer_projs = l["cap_intf_l"].GetLayerData("srs") if first: projs_list = layer_projs first = False continue projs_list = set(projs_list).intersection(layer_projs) if "srs" not in self.drv_props["ignored_params"]: for proj in projs_list: proj_code = Srs(proj.strip()).getcode() proj_spl = proj_code.split(":") if proj_spl[0].strip().lower() in self.drv_info.GetSrs(): # accept ogc:crs code self.projs_list.append(proj_code) cur_sel = self.params["srs"].GetStringSelection() self.projs_list = sorted(self.projs_list) self.params["srs"].SetItems(self.projs_list) if cur_sel: self.params["srs"].SetStringSelection(cur_sel) else: try: i = self.projs_list.index("EPSG:4326") self.params["srs"].SetSelection(i) except ValueError: if len(self.projs_list) > 0: self.params["srs"].SetSelection(0) # update format if "WMS" not in self.ws and "format" not in self.drv_props["ignored_params"]: self.formats_list = [] cur_sel = None if self.params["format"]: cur_sel = self.params["format"].GetStringSelection() if len(curr_sel_ls) > 0: self.formats_list = sorted( self._getFormats(curr_sel_ls[0]["cap_intf_l"]) ) self._updateFormatRadioBox(self.formats_list) if cur_sel: if self.params["format"]: self.params["format"].SetStringSelection(cur_sel) else: self._setDefaultFormatVal() self.Layout() def _setDefaultFormatVal(self): """Set default format value.""" try: i = self.formats_list.index("png") self.params["format"].SetSelection(i) except ValueError: pass def _updateFormatRadioBox(self, formats_list): """Helper function""" if self.params["format"]: self.req_page_sizer.Detach(self.params["format"]) self.params["format"].Destroy() if len(self.formats_list) > 0: self.params["format"] = wx.RadioBox( parent=self.req_page_panel, id=wx.ID_ANY, label=_("Source image format"), pos=wx.DefaultPosition, choices=formats_list, majorDimension=4, style=wx.RA_SPECIFY_COLS, ) self.source_sizer.Insert( 2, window=self.params["format"], flag=wx.LEFT | wx.RIGHT | wx.BOTTOM, border=5, ) def _getFormats(self, layer=None): """Get formats WMS has formats defined generally for whole cap. In WMTS and NASA OnEarh formats are defined for layer. """ formats_label = [] if layer is None: formats_list = self.cap.GetFormats() else: formats_list = layer.GetLayerData("format") for frmt in formats_list: frmt = frmt.strip() label = self.drv_info.GetFormatLabel(frmt) if label: formats_label.append(label) return formats_label def _checkImportValues( self, ): """Check if required widgets are selected/filled""" warning_str = "" show_war = False if not self.list or not self.list.GetSelectedLayers(): warning_str += _("Select layer in layer list.\n") show_war = True if ( self.params["format"] is not None and self.params["format"].GetSelection() == -1 ): warning_str += _("Select source image format.\n") show_war = True if self.params["srs"] is not None and self.params["srs"].GetSelection() == -1: warning_str += _("Select source projection.\n") show_war = True if not self.o_layer_name: warning_str += _("Choose output layer name.\n") show_war = True if show_war: GMessage(parent=self.parent, message=warning_str) return False return True def SetOutputLayerName(self, name): """Set name of layer to be added to layer tree""" self.o_layer_name = name def GetOutputLayerName(self): return self.o_layer_name def GetCapFile(self): """Get path to file where capabilities are saved""" return self.cap_file def GetWebService(self): """Get web service""" return self.ws class LayersList(TreeCtrl): def __init__(self, parent, web_service, style, pos=wx.DefaultPosition): """List of layers and styles available in capabilities file""" self.parent = parent self.ws = web_service TreeCtrl.__init__(self, parent=parent, id=wx.ID_ANY, style=style) self.root = None self.Bind(wx.EVT_TREE_SEL_CHANGING, self.OnListSelChanging) self.layerSelected = Signal("LayersList.layerSelected") def LoadData(self, cap=None): """Load data into list""" # detete first all items self.DeleteAllItems() if not cap: return def AddLayerChildrenToTree(parent_layer, parent_item): """Recursive function which adds all capabilities layers/styles to the LayersList. """ def gettitle(layer): """Helper function""" if layer.GetLayerData("title") is not None: layer_title = layer.GetLayerData("title") elif layer.GetLayerData("name") is not None: layer_title = layer.GetLayerData("name") else: layer_title = str(layer.GetId()) return layer_title def addlayer(layer, item): styles = layer.GetLayerData("styles") def_st = None for st in styles: if st["name"]: style_name = st["name"] else: continue if st["title"]: style_name = st["title"] if st["isDefault"]: def_st = st style_item = self.AppendItem(item, style_name) self.SetItemData( style_item, { "type": "style", "layer": layer, # it is parent layer of style "style": st, }, ) self.SetItemData( item, { "type": "layer", # is it layer or style? "layer": layer, # Layer instance from web_services.cap_interface "style": def_st, }, ) # layer can have assigned default style if parent_layer is None: parent_layer = cap.GetRootLayer() layer_title = gettitle(parent_layer) parent_item = self.AddRoot(layer_title) addlayer(parent_layer, parent_item) for layer in parent_layer.GetChildren(): item = self.AppendItem(parent_item, gettitle(layer)) addlayer(layer, item) AddLayerChildrenToTree(layer, item) AddLayerChildrenToTree(None, None) # self.ExpandAll(self.GetRootItem()) def GetSelectedLayers(self): """Get selected layers/styles in LayersList :return: dict with these items: * 'name' : layer name used for request if it is style, it is name of parent layer * 'title' : layer title * 'style' : {'name' : 'style name', title : 'style title'} * 'cap_intf_l' : \*Layer instance from web_services.cap_interface """ sel_layers = self.GetSelections() sel_layers_dict = [] for s in sel_layers: try: layer = self.GetItemData(s)["layer"] except ValueError: continue sel_layers_dict.append( { "name": layer.GetLayerData("name"), "title": layer.GetLayerData("title"), "style": self.GetItemData(s)["style"], "cap_intf_l": layer, } ) return sel_layers_dict def OnListSelChanging(self, event): """Do not allow selecting items, which cannot be requested from server.""" def _emitSelected(layer): title = layer.GetLayerData("title") self.layerSelected.emit(title=title) def _selectRequestableChildren(item, list_to_check, items_to_sel): self.Expand(item) child_item, cookie = self.GetFirstChild(item) while child_item and child_item.IsOk(): if self.GetItemData(child_item)[ "layer" ].IsRequestable() and not self.IsSelected(child_item): items_to_sel.append(child_item) elif not self.GetItemData(child_item)["layer"].IsRequestable(): list_to_check.append(child_item) child_item, cookie = self.GetNextChild(item, cookie) cur_item = event.GetItem() if not self.GetItemData(cur_item)["layer"].IsRequestable(): event.Veto() if not self.HasFlag(wx.TR_MULTIPLE): return _emitSelected(self.GetItemData(cur_item)["layer"]) items_to_chck = [] items_to_sel = [] chck_item = cur_item while True: _selectRequestableChildren(chck_item, items_to_chck, items_to_sel) if items_to_chck: chck_item = items_to_chck.pop() else: break while items_to_sel: self.SelectItem(items_to_sel.pop(), select=True) else: _emitSelected(self.GetItemData(cur_item)["layer"]) def GetItemCount(self): """Required for listmix.ListCtrlAutoWidthMixin""" return 0 def GetCountPerPage(self): """Required for listmix.ListCtrlAutoWidthMixin""" return 0 def SelectLayers(self, l_st_list): """Select layers/styles in LayersList :param l_st_list: [{style : 'style_name', layer : 'layer_name'}, ...] :return: items from l_st_list which were not found """ def checknext(root_item, l_st_list, items_to_sel): def compare(item, l_name, st_name): it_l_name = self.GetItemData(item)["layer"].GetLayerData("name") it_st = self.GetItemData(item)["style"] it_type = self.GetItemData(item)["type"] if it_l_name == l_name and ( (not it_st and not st_name) or (it_st and it_st["name"] == st_name and it_type == "style") ): return True return False (child, cookie) = self.GetFirstChild(root_item) while child.IsOk(): for i, l_st in enumerate(l_st_list): l_name = l_st["layer"] st_name = l_st["style"] if compare(child, l_name, st_name): items_to_sel[i] = [child, l_st] break if len(items_to_sel) == len(l_st_list): if self.ItemHasChildren(child): checknext(child, l_st_list, items_to_sel) child = self.GetNextSibling(child) self.UnselectAll() l_st_list = deepcopy(l_st_list) root_item = self.GetRootItem() items_to_sel = [None] * len(l_st_list) checknext(root_item, l_st_list, items_to_sel) self.CollapseAll() # items are selected according to position in l_st_list # to be added to Layers order list in right order for i in items_to_sel: if not i: continue item, l_st = i keep = False if self.HasFlag(wx.TR_MULTIPLE): keep = True self.SelectItem(item, select=keep) self.SetFocusedItem(item) self.Expand(item) l_st_list.remove(l_st) return l_st_list class WSManageSettingsWidget(ManageSettingsWidget): def __init__(self, parent, settingsFile, default_servers): ManageSettingsWidget.__init__(self, parent, settingsFile) self.default_servers = default_servers def _layout(self): self.btnAddDefaultServers = Button( parent=self, id=wx.ID_ANY, label=_("Add default") ) self.btnAddDefaultServers.Bind(wx.EVT_BUTTON, self.OnAddDefaultServers) ManageSettingsWidget._layout(self) self.settingsSizer.Add(self.btnAddDefaultServers, flag=wx.RIGHT, border=5) def OnAddDefaultServers(self, event): setts = self.GetSettings() self.servers_to_add = {} for k, v in six.iteritems(self.default_servers): if k not in six.iterkeys(setts): self.servers_to_add[k] = v elif v != setts[k]: GMessage( parent=self, message=_( "User defined server with same name " "as default server <%s> already exists.\n" "Keeping user defined server" ) % (k), ) if self.servers_to_add: self.AddSettings(self.servers_to_add)