etherlab/entries_list.ysl2
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Tue, 26 Jun 2018 17:34:15 +0300
changeset 2229 3c94bac4526e
parent 2165 02a2b5dee5e3
child 2641 c9deff128c37
permissions -rw-r--r--
Fix 'DoGetTextExtent - invalid DC' error

most likely this error happens only on certain wx backends.
GTK3+ on GNU/Linux is apparently one of them.
The problem is described in wxWidgets issue tracker.
http://trac.wxwidgets.org/ticket/12486

[-------------------------------------------------------------------------------------------------------------------]
platform:
Linux-4.16.0-2-rt-amd64-x86_64-with-debian-buster-sid

python-version:
2.7.15

traceback:
File "/home/developer/WorkData/PLC/beremiz/beremiz/ProjectController.py", line 1605, in DispatchDebugValuesProc
self.CallWeakcallables("__tick__", "NewDataAvailable", debug_ticks)
File "/home/developer/WorkData/PLC/beremiz/beremiz/ProjectController.py", line 1585, in CallWeakcallables
function(*cargs)
File "/home/developer/WorkData/PLC/beremiz/beremiz/editors/Viewer.py", line 1217, in NewDataAvailable
refresh_rect.Union(element.GetRedrawRect())
File "/home/developer/WorkData/PLC/beremiz/beremiz/graphics/GraphicCommons.py", line 1609, in GetRedrawRect
self.ValueSize = self.Parent.GetMiniTextExtent(self.ComputedValue)
File "/home/developer/WorkData/PLC/beremiz/beremiz/editors/Viewer.py", line 932, in GetMiniTextExtent
return self.MiniTextDC.GetTextExtent(text)
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_gdi.py", line 4127, in GetTextExtent
return _gdi_.DC_GetTextExtent(*args, **kwargs)
<class 'wx._core.PyAssertionError'>: C++ assertion "m_graphicContext" failed at ../src/common/dcgraph.cpp(1160) in DoGetTextExtent(): wxGCDC(cg)::DoGetTextExtent - invalid DC

wx-platform:
__WXGTK__

wx-version:
3.0.2.0

[-------------------------------------------------------------------------------------------------------------------]

traceback:
File "/home/developer/WorkData/PLC/beremiz/beremiz/controls/LogViewer.py", line 740, in OnMessageToolTipTimer
self.MessageToolTip.SetFont(self.Font)
File "/home/developer/WorkData/PLC/beremiz/beremiz/controls/CustomToolTip.py", line 75, in SetFont
self.RefreshTip()
File "/home/developer/WorkData/PLC/beremiz/beremiz/controls/CustomToolTip.py", line 158, in RefreshTip
self.SetClientSize(self.GetToolTipSize())
File "/home/developer/WorkData/PLC/beremiz/beremiz/controls/CustomToolTip.py", line 145, in GetToolTipSize
w, h = dc.GetTextExtent(line)
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_gdi.py", line 4127, in GetTextExtent
return _gdi_.DC_GetTextExtent(*args, **kwargs)
<class 'wx._core.PyAssertionError'>: C++ assertion "m_graphicContext" failed at ../src/common/dcgraph.cpp(1160) in DoGetTextExtent(): wxGCDC(cg)::DoGetTextExtent - invalid DC

[-------------------------------------------------------------------------------------------------------------------]
/*

Stylesheet used to list EtherCat dictionnary entries.

Copyright (C) 2011-2014: Laurent BESSARD

Distributed under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

See COPYING file for copyrights details.

*/

include yslt.yml2
estylesheet xmlns:ns="entries_list_ns" 
            extension-element-prefixes="ns" 
            exclude-result-prefixes="ns" {
    
    param "min_index";
    param "max_index";
    
    template "text()";
    
    template "Device" {
        apply "Profile/Dictionary/Objects/Object";
        foreach "RxPdo" {
            call "pdo_entries" with "direction", "'Receive'";
        }
        foreach "TxPdo" {
            call "pdo_entries" with "direction", "'Transmit'";
        }
    }
    
    template "Object" {
        variable "index" > «ns:HexDecValue(Index/text())»
        variable "entry_name" > «ns:EntryName(Name)»
        choose {
            when "$index >= $min_index and $index <= $max_index" {
                variable "datatype_name" > «Type/text()»
                choose {
                    when "ancestor::Dictionary/child::DataTypes/DataType[Name/text()=$datatype_name][SubItem]" {
                        apply "ancestor::Dictionary/child::DataTypes/DataType[Name/text()=$datatype_name][SubItem]" {
                            with "index" > «$index»
                            with "entry_name" > «$entry_name»
                        }
                    }
                    otherwise {
                        variable "subindex" > 0
                        variable "entry" {
                            > «ns:AddEntry($index, $subindex, $entry_name, $datatype_name, BitSize/text(), Flags/Access/text(), Flags/PdoMapping/text())»
                        }
                    }
                }
            }
        }
    }
    
    template "DataType" {
        param "index";
        param "entry_name";
        foreach "SubItem" {
            variable "subindex" > «ns:HexDecValue(SubIdx/text())»
            variable "subentry_name" > «$entry_name» - «ns:EntryName(DisplayName, Name/text())»
            variable "entry" {
                > «ns:AddEntry($index, $subindex, $subentry_name, Type/text(), BitSize/text(), Flags/Access/text(), Flags/PdoMapping/text())»
            }
        }
    }
    
    function "pdo_entries" {
        param "direction";
        variable "pdo_index" > «ns:HexDecValue(Index/text())»
        variable "pdo_name" > «ns:EntryName(Name)»
        foreach "Entry" {
            variable "index" > «ns:HexDecValue(Index/text())»
            choose {
                when "$index >= $min_index and $index <= $max_index" {
                    variable "subindex" > «ns:HexDecValue(SubIndex/text())»
                    variable "subentry_name" > «ns:EntryName(Name)»
                    variable "access" {
                        choose {
                            when "$direction='Transmit'" > ro
                            otherwise > wo
                        }
                    }
                    variable "pdo_mapping" {
                        choose {
                            when "$direction='Transmit'" > T
                            otherwise > R
                        }
                    }
                    variable "entry" {
                        > «ns:AddEntry($index, $subindex, $subentry_name, DataType/text(), BitLen/text(), $access, $pdo_mapping, $pdo_index, $pdo_name, $direction)»
                    }
                }
            }
        }
    }
}