controls/SearchResultPanel.py
author Edouard Tisserant
Mon, 04 Jun 2018 11:22:08 +0200
changeset 2018 983c482f8e42
parent 1948 b9a3f771aaab
child 2177 10aa87518401
permissions -rw-r--r--
Commented out safety check to prevent deadlock in wxEvaluator, since wx Mainloop is not anymore in main thread. That safety check actually leads to having wx code running outside of MainLoop
#!/usr/bin/env python
# -*- coding: utf-8 -*-

# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
# See COPYING file for copyrights details.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.


from __future__ import absolute_import
from types import TupleType

import wx
import wx.lib.buttons
import wx.lib.agw.customtreectrl as CT

from PLCControler import *
from util.BitmapLibrary import GetBitmap
from plcopen.types_enums import GetElementType


def GenerateName(infos):
    if infos[0] in ["input", "output", "value"]:
        return "%s %d:" % (infos[0], infos[1])
    elif infos[0] == "range":
        return "%s %d %s" % (infos[0], infos[1], infos[2])
    elif infos[0] == "struct":
        return "element %d %s" % (infos[1], infos[2])
    return "%s:" % infos[0]


# -------------------------------------------------------------------------------
#                            Search Result Panel
# -------------------------------------------------------------------------------


[
    ID_SEARCHRESULTPANEL, ID_SEARCHRESULTPANELHEADERLABEL,
    ID_SEARCHRESULTPANELSEARCHRESULTSTREE, ID_SEARCHRESULTPANELRESETBUTTON,
] = [wx.NewId() for _init_ctrls in range(4)]


class SearchResultPanel(wx.Panel):

    if wx.VERSION < (2, 6, 0):
        def Bind(self, event, function, id=None):
            if id is not None:
                event(self, id, function)
            else:
                event(self, function)

    def _init_coll_MainSizer_Items(self, parent):
        parent.AddSizer(self.HeaderSizer, 0, border=0, flag=wx.GROW)
        parent.AddWindow(self.SearchResultsTree, 1, border=0, flag=wx.GROW)

    def _init_coll_MainSizer_Growables(self, parent):
        parent.AddGrowableCol(0)
        parent.AddGrowableRow(1)

    def _init_coll_HeaderSizer_Items(self, parent):
        parent.AddWindow(self.HeaderLabel, 1, border=5, flag=wx.LEFT | wx.RIGHT | wx.ALIGN_CENTER_VERTICAL)
        parent.AddWindow(self.ResetButton, 0, border=0, flag=0)

    def _init_coll_HeaderSizer_Growables(self, parent):
        parent.AddGrowableCol(0)

    def _init_sizers(self):
        self.MainSizer = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=0)
        self.HeaderSizer = wx.BoxSizer(wx.HORIZONTAL)

        self._init_coll_MainSizer_Items(self.MainSizer)
        self._init_coll_MainSizer_Growables(self.MainSizer)
        self._init_coll_HeaderSizer_Items(self.HeaderSizer)

        self.SetSizer(self.MainSizer)

    def _init_ctrls(self, prnt):
        self.HeaderLabel = wx.StaticText(id=ID_SEARCHRESULTPANELHEADERLABEL,
                                         name='HeaderLabel', parent=self,
                                         pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

        search_results_tree_style = CT.TR_HAS_BUTTONS | CT.TR_NO_LINES | CT.TR_HAS_VARIABLE_ROW_HEIGHT
        self.SearchResultsTree = CT.CustomTreeCtrl(id=ID_SEARCHRESULTPANELSEARCHRESULTSTREE,
                                                   name="SearchResultsTree", parent=self,
                                                   pos=wx.Point(0, 0), style=search_results_tree_style)
        if wx.VERSION >= (2, 8, 11):
            self.SearchResultsTree.SetAGWWindowStyleFlag(search_results_tree_style)
        self.Bind(wx.EVT_TREE_ITEM_ACTIVATED, self.OnSearchResultsTreeItemActivated,
                  id=ID_SEARCHRESULTPANELSEARCHRESULTSTREE)

        self.ResetButton = wx.lib.buttons.GenBitmapButton(
            self, bitmap=GetBitmap("reset"),
            size=wx.Size(28, 28), style=wx.NO_BORDER)
        self.ResetButton.SetToolTipString(_("Reset search result"))
        self.Bind(wx.EVT_BUTTON, self.OnResetButton, self.ResetButton)

        self._init_sizers()

    def __init__(self, parent, window):
        wx.Panel.__init__(self, id=ID_SEARCHRESULTPANEL,
                          name='SearchResultPanel', parent=parent,
                          pos=wx.Point(0, 0),
                          size=wx.Size(0, 0), style=wx.TAB_TRAVERSAL)

        self.ParentWindow = window

        self._init_ctrls(parent)

        # Define Tree item icon list
        self.TreeImageList = wx.ImageList(16, 16)
        self.TreeImageDict = {}

        # Icons for other items
        for imgname, itemtype in [
                # editables
                ("PROJECT",        ITEM_PROJECT),
                ("TRANSITION",     ITEM_TRANSITION),
                ("ACTION",         ITEM_ACTION),
                ("CONFIGURATION",  ITEM_CONFIGURATION),
                ("RESOURCE",       ITEM_RESOURCE),
                ("DATATYPE",       ITEM_DATATYPE),
                ("ACTION",         "action_block"),
                ("IL",             "IL"),
                ("ST",             "ST")]:
            self.TreeImageDict[itemtype] = self.TreeImageList.Add(GetBitmap(imgname))

        for itemtype in ["function", "functionBlock", "program",
                         "comment", "block", "io_variable",
                         "connector", "contact", "coil",
                         "step", "transition", "jump",
                         "var_local", "var_input",
                         "var_inout", "var_output"]:
            self.TreeImageDict[itemtype] = self.TreeImageList.Add(GetBitmap(itemtype.upper()))

        # Assign icon list to TreeCtrl
        self.SearchResultsTree.SetImageList(self.TreeImageList)

        self.ResetSearchResults()

    def SetSearchResults(self, criteria, search_results):
        self.Criteria = criteria
        self.SearchResults = {}
        self.ElementsOrder = []

        for infos, start, end, text in search_results:
            if infos[0] not in self.ElementsOrder:
                self.ElementsOrder.append(infos[0])

            results = self.SearchResults.setdefault(infos[0], [])
            results.append((infos, start, end, text))

        self.RefreshView()

    def ResetSearchResults(self):
        self.Criteria = None
        self.ElementsOrder = []
        self.SearchResults = {}
        self.RefreshView()

    def RefreshView(self):
        self.SearchResultsTree.DeleteAllItems()
        if self.Criteria is None:
            self.SearchResultsTree.AddRoot("")
            root = self.SearchResultsTree.GetRootItem()
            root.SetHilight(False)
            self.HeaderLabel.SetLabel(_("No search results available."))
            self.ResetButton.Enable(False)
        else:
            matches_number = 0
            search_results_tree_infos = {
                "name": _("Project '%s':") % self.ParentWindow.Controler.GetProjectName(),
                "type": ITEM_PROJECT,
                "data": None,
                "text": None,
                "matches": None,
            }
            search_results_tree_children = search_results_tree_infos.setdefault("children", [])
            for tagname in self.ElementsOrder:
                results = self.SearchResults.get(tagname, [])
                matches_number += len(results)

                words = tagname.split("::")

                element_type = GetElementType(tagname)
                if element_type == ITEM_POU:
                    element_type = self.ParentWindow.Controler.GetPouType(words[1])

                element_infos = {"name": words[-1],
                                 "type": element_type,
                                 "data": tagname,
                                 "text": None,
                                 "matches": len(results)}

                children = element_infos.setdefault("children", [])
                for infos, start, end, text in results:
                    if infos[1] == "name" or element_type == ITEM_DATATYPE:
                        child_name = GenerateName(infos[1:])
                        child_type = element_type
                    else:
                        if element_type == ITEM_RESOURCE:
                            child_type = element_type
                        else:
                            child_type = infos[1]
                        if child_type == "name":
                            child_name = "name"
                        elif child_type == "body":
                            child_name = "body"
                            if element_type == ITEM_TRANSITION:
                                child_type = self.ParentWindow.Controler.GetTransitionBodyType(words[1], words[2])
                            elif element_type == ITEM_ACTION:
                                child_type = self.ParentWindow.Controler.GetActionBodyType(words[1], words[2])
                            else:
                                child_type = self.ParentWindow.Controler.GetPouBodyType(words[1])
                        else:
                            child_name = GenerateName(infos[3:])
                    child_infos = {
                        "name": child_name,
                        "type": child_type,
                        "data": (infos, start, end, None),
                        "text": text,
                        "matches": 1,
                        "children": [],
                    }
                    children.append(child_infos)

                if len(words) > 2:
                    for _element_infos in search_results_tree_children:
                        if _element_infos["name"] == words[1]:
                            _element_infos["matches"] += len(children)
                            _element_infos["children"].append(element_infos)
                            break
                    if element_type == ITEM_RESOURCE:
                        search_results_tree_children.append(element_infos)
                else:
                    search_results_tree_children.append(element_infos)

            if matches_number < 2:
                header_format = _("'{a1}' - {a2} match in project")
            else:
                header_format = _("'{a1}' - {a2} matches in project")

            self.HeaderLabel.SetLabel(header_format.format(a1=self.Criteria["find_pattern"], a2=matches_number))
            self.ResetButton.Enable(True)

            if matches_number > 0:
                root = self.SearchResultsTree.GetRootItem()
                if root is None:
                    root = self.SearchResultsTree.AddRoot(search_results_tree_infos["name"])
                self.GenerateSearchResultsTreeBranch(root, search_results_tree_infos)
                self.SearchResultsTree.Expand(root)

    def GetTextCtrlClickFunction(self, item):
        def OnTextCtrlClick(event):
            self.SearchResultsTree.SelectItem(item)
            event.Skip()
        return OnTextCtrlClick

    def GetTextCtrlDClickFunction(self, item):
        def OnTextCtrlDClick(event):
            self.ShowSearchResults(item)
            event.Skip()
        return OnTextCtrlDClick

    def GenerateSearchResultsTreeBranch(self, root, infos):
        if infos["name"] == "body":
            item_name = "%d:" % infos["data"][1][0]
        else:
            item_name = infos["name"]

        self.SearchResultsTree.SetItemText(root, item_name)
        self.SearchResultsTree.SetPyData(root, infos["data"])
        self.SearchResultsTree.SetItemBackgroundColour(root, wx.WHITE)
        self.SearchResultsTree.SetItemTextColour(root, wx.BLACK)
        if infos["type"] is not None:
            if infos["type"] == ITEM_POU:
                self.SearchResultsTree.SetItemImage(root, self.TreeImageDict[self.ParentWindow.Controler.GetPouType(infos["name"])])
            else:
                self.SearchResultsTree.SetItemImage(root, self.TreeImageDict[infos["type"]])

        text = None
        if infos["text"] is not None:
            text = infos["text"]
            start, end = infos["data"][1:3]
            text_lines = infos["text"].splitlines()
            start_idx = start[1]
            end_idx = reduce(lambda x, y: x + y, map(lambda x: len(x) + 1, text_lines[:end[0] - start[0]]), end[1] + 1)
            style = wx.TextAttr(wx.BLACK, wx.Colour(206, 204, 247))
        elif infos["type"] is not None and infos["matches"] > 1:
            text = _("(%d matches)") % infos["matches"]
            start_idx, end_idx = 0, len(text)
            style = wx.TextAttr(wx.Colour(0, 127, 174))

        if text is not None:
            text_ctrl_style = wx.BORDER_NONE | wx.TE_READONLY | wx.TE_RICH2
            if wx.Platform != '__WXMSW__' or len(text.splitlines()) > 1:
                text_ctrl_style |= wx.TE_MULTILINE
            text_ctrl = wx.TextCtrl(id=-1, parent=self.SearchResultsTree, pos=wx.Point(0, 0),
                                    value=text, style=text_ctrl_style)
            width, height = text_ctrl.GetTextExtent(text)
            text_ctrl.SetClientSize(wx.Size(width + 1, height))
            text_ctrl.SetBackgroundColour(self.SearchResultsTree.GetBackgroundColour())
            text_ctrl.Bind(wx.EVT_LEFT_DOWN, self.GetTextCtrlClickFunction(root))
            text_ctrl.Bind(wx.EVT_LEFT_DCLICK, self.GetTextCtrlDClickFunction(root))
            text_ctrl.SetInsertionPoint(0)
            text_ctrl.SetStyle(start_idx, end_idx, style)
            self.SearchResultsTree.SetItemWindow(root, text_ctrl)

        item, root_cookie = self.SearchResultsTree.GetFirstChild(root)
        for child in infos["children"]:
            if item is None:
                item = self.SearchResultsTree.AppendItem(root, "")
                item, root_cookie = self.SearchResultsTree.GetNextChild(root, root_cookie)
            self.GenerateSearchResultsTreeBranch(item, child)
            item, root_cookie = self.SearchResultsTree.GetNextChild(root, root_cookie)

    def ShowSearchResults(self, item):
        data = self.SearchResultsTree.GetPyData(item)
        if isinstance(data, TupleType):
            search_results = [data]
        else:
            search_results = self.SearchResults.get(data, [])
        self.ParentWindow.ClearHighlights(SEARCH_RESULT_HIGHLIGHT)
        for infos, start, end, _text in search_results:
            self.ParentWindow.ShowSearchResult(infos, start, end)

    def OnSearchResultsTreeItemActivated(self, event):
        self.ShowSearchResults(event.GetItem())
        event.Skip()

    def OnResetButton(self, event):
        self.ResetSearchResults()
        self.ParentWindow.ClearSearchResults()
        event.Skip()