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DotEditor.py
1116 lines (856 loc) · 41.7 KB
/
DotEditor.py
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# coding=utf8
'''
Copyright (R) 2015 Vincent.H <forever.h@gmail.com>
Published under Apache 2.0 License (http://www.apache.org/licenses/LICENSE-2.0.html).
-------------------------------------------------------------------------------------
A Dot file Editor to make the great graphviz tools easier to beginner.
This module include the main UI logic of DE.
To change the UI layout, edit the DotEditor.fbp by "wxFormBuilder". (http://sourceforge.net/projects/wxformbuilder)
The graph core module "ExtGraph.py" base on the PyDot project. (https://github.com/erocarrera/pydot)
To modified the attributes define of dot language, edit the "AttrsDef.py".
'''
import os, wx, types, time, shutil, math
import wx.propgrid as wxpg
import ExtGraph as ExtGraph
from UIClass import MainFrame, DialogAppend, DialogAbout, DialogGraphSetting, \
DialogHelp
from DotScriptEditor import DS
import ExtParser
import AttrsDef
import ExtPG
from __builtin__ import isinstance
from DEUtils import add_double_quote, to_unicode, remove_double_quote ,\
normalize_imglist, get_image_resource, resource_path,\
escape_dot_string
### The layout command and export format wildcard define.
### The "osage", "sfdp" commands are not here because the pydot module has missed them.
G_CMDS = ['circo', 'dot', 'fdp', 'sfdp', 'neato', 'twopi']
G_FORMAT_WILDCARD = "Portable Network Graphics format (*.png)|*.png"+\
"|Windows Bitmap Format (*.bmp)|*.bmp"+\
"|JPEG format (*.jpg)|*.jpg"+\
"|Scalable Vector Graphics (*.svg)|*.svg"+\
"|PostScript Format (*.ps)|*.ps"+\
"|PostScript for PDF (*.ps2)|*.ps2"+\
"|GIF Format (*.gif)|*.gif"
class DH(DialogHelp):
'''A dialog to show help graph :) '''
def __init__(self, parent, help_topic):
DialogHelp.__init__(self, parent)
self.change_help_topic(help_topic)
self.m_panel_paint.Bind(wx.EVT_ERASE_BACKGROUND, self.onEraseBackground)
def change_help_topic(self, help_topic):
help_topic = help_topic.strip().lower()
self.SetTitle('DotEditor Help - %s'%help_topic.capitalize())
self.update_graph( ExtGraph.ExtGraph(template_file=resource_path('resource/help/%s.dot'%help_topic)) )
def onEraseBackground(self, event):
dc = wx.ClientDC(self.m_panel_paint)
dc.Clear()
img = self.data_graph.get_bitmap()
x1, y1 = self.m_panel_paint.GetViewStart()
dc.DrawBitmap(img, -1*20*x1,-1*20*y1)
return
def update_graph(self, graph):
'''Update data graph and then refresh the whole UI. IF graph == None, just refresh the preview.'''
try:
del self.data_graph
except:
pass
self.data_graph = ExtGraph.ExtGraph(obj_dict=graph.obj_dict)
### Refresh image panel.
self.data_graph.refresh_bitmap()
img = self.data_graph.get_bitmap()
self.m_panel_paint.SetVirtualSize((img.GetWidth(), \
img.GetHeight()))
self.m_panel_paint.SetScrollRate(20,20)
self.m_panel_paint.Refresh()
return
class DA(DialogAppend):
'''Append item dialog.'''
def __init__(self, parent):
DialogAppend.__init__(self, parent)
self.data_graph = parent.data_graph
self.__refresh_comboBoxA_suggestion()
self.m_comboBox_nodeA.SetFocus()
def __refresh_comboBoxA_suggestion(self):
'''Refresh comboxA, filled it with suggested node name.'''
nodes = self.data_graph.EG_get_all_node_names()
edges = self.data_graph.EG_get_all_edge_names()
endpoints = set()
for s, d in edges:
endpoints.add(s); endpoints.add(d)
### Generate suggestion when Appending Node.
if self.m_radioBox_type.GetSelection() == 0:
# All end node but the stand-alone one.
s_n = list(endpoints - set(nodes))
### Generate suggestion when Appending Edge.
else:
# Get all node name in graph. Include all end-nodes in edges.
s_n = list( set(nodes).union(endpoints) )
# Save the value in old_v.
old_v = self.m_comboBox_nodeA.GetValue()
self.m_comboBox_nodeA.Clear()
s_n.sort()
for n in s_n:
self.m_comboBox_nodeA.Append(n.decode('utf8'))
# Restore the nodeA value.
self.m_comboBox_nodeA.SetValue(old_v)
return
def __refresh_comboBoxB_suggestion(self):
'''Refresh comboxB, filled it with suggested node name, based on the value of comboxA.'''
if self.m_radioBox_type.GetSelection() != 1:
self.m_comboBox_nodeB.Clear()
return
nodes = self.data_graph.EG_get_all_node_names()
edges = self.data_graph.EG_get_all_edge_names()
endpoints = set()
for s, d in edges:
endpoints.add(s); endpoints.add(d)
nA = self.m_comboBox_nodeA.GetValue().strip().encode('utf8')
# Get all node's name.
s_n = set(nodes).union(endpoints)
invalid_points = set()
for s,d in edges:
if s == nA:
invalid_points.add(d)
s_n = s_n - invalid_points
s_n = list(s_n); s_n.sort()
# Save the value in old_v.
old_v = self.m_comboBox_nodeB.GetValue()
self.m_comboBox_nodeB.Clear()
for n in s_n:
self.m_comboBox_nodeB.Append(n.decode('utf8'))
# Restore the nodeA value.
self.m_comboBox_nodeB.SetValue(old_v)
return
def getAppendValue(self):
'''If "append node" checked, return node in string; else return nodes in tuple.'''
vCheck = self.m_radioBox_type.GetSelection()
vA = remove_double_quote( self.m_comboBox_nodeA.GetValue().encode('utf8') )
vB = remove_double_quote( self.m_comboBox_nodeB.GetValue().encode('utf8') )
if vCheck == 0:
return 'node', escape_dot_string(vA)
elif vCheck == 1:
return 'edge', (escape_dot_string(vA), escape_dot_string(vB))
else:
return 'subgraph', escape_dot_string(vA)
def onTypeChange(self, event):
'''Refresh both combox when the value of append_type_checkbox changed.'''
checked = self.m_radioBox_type.GetSelection()
if checked == 0: # Case Node.
self.m_comboBox_nodeB.Clear()
self.m_comboBox_nodeB.Disable()
self.__refresh_comboBoxA_suggestion()
self.__refresh_comboBoxB_suggestion()
elif checked == 1: # Case Edge.
self.m_comboBox_nodeB.Enable()
self.__refresh_comboBoxA_suggestion()
self.__refresh_comboBoxB_suggestion()
else: # Case Subgraph
self.m_comboBox_nodeB.Disable()
self.m_comboBox_nodeA.Clear()
self.m_comboBox_nodeA.SetValue('clusterN')
self.m_comboBox_nodeA.SetFocus()
self.m_comboBox_nodeA.SetMark(7, -1)
def onNodeAChanged(self, event):
'''Refill comboxB when value of combox changed.'''
checked = self.m_radioBox_type.GetSelection()
if checked == 1:
self.__refresh_comboBoxB_suggestion()
def OnOK(self, event):
v = self.getAppendValue()
sth_wrong = False
if v[0] in ['node', 'subgraph']:
if v[1] == '':
sth_wrong = True
else:
if v[1][0] == '' or v[1][1] == '':
sth_wrong = True
if sth_wrong:
wx.MessageBox('Empty value is NOT allow.', 'Error')
return
else:
self.EndModal(wx.ID_OK)
class DGS(DialogGraphSetting):
'''Dialog to edit graph object high level setting.'''
def __init__(self, parent):
DialogGraphSetting.__init__(self, parent)
# Init the value of control.
g = parent.data_graph
self.m_checkBox_strict.SetValue(g.get_strict(None))
if g.get_type() == 'graph':
self.m_radioBox_type.SetSelection(1)
else:
self.m_radioBox_type.SetSelection(0)
self.m_textCtrl_name.SetValue(g.get_name().strip().decode('utf8'))
self.m_choice_layout_cmd.Clear()
self.m_choice_layout_cmd.AppendItems(G_CMDS)
self.m_choice_layout_cmd.SetSelection(G_CMDS.index(g.prog))
class MF(MainFrame):
is_data_changed = False
file_path = None
help_window = None
bitmap_zoom_ratio = 1.0
MAX_ZOOM = 1.2
__zoom_cache = (bitmap_zoom_ratio, None, None)
is_dragging = False
def __init__(self, parent=None):
MainFrame.__init__(self, parent)
# Set icon of buttons. (Cause of the resource path problem in pyinstaller~~~)
for btn_name in ['new', 'open', 'save', 'export', 'script', 'add', 'minus', 'graphsetting', 'help']:
set_s = 'self.m_bpButton_%s.SetBitmap( wx.Bitmap( resource_path("resource/icon/%s.png"), wx.BITMAP_TYPE_ANY ) )'
eval(set_s%(btn_name,btn_name))
set_s = 'self.m_bpButton_%s.SetBitmapHover( wx.Bitmap( resource_path("resource/icon/%s-highlight.png"), wx.BITMAP_TYPE_ANY ) )'
eval(set_s%(btn_name, btn_name))
# Set icon.
self.SetIcon(wx.Icon(resource_path('resource/icon/DE.ico'), wx.BITMAP_TYPE_ICO))
self.colorDB = wx.ColourDatabase()
# Build help popmenu.
self.m_menu_help = wx.Menu()
help_list = []
help_files = os.listdir(resource_path('resource/help/'))
for hf in help_files:
if hf[0].isdigit() and hf[-3:].lower() == 'dot':
help_list.append(hf[:-4])
for item in help_list:
m_id = wx.NewId()
self.m_menu_help.Append(m_id, item)
self.m_menu_help.Bind(wx.EVT_MENU, self.onHelpMenu, id=m_id )
self.m_menu_help.AppendSeparator()
m_id = wx.NewId()
self.m_menu_help.Append(m_id, '&About')
self.m_menu_help.Bind(wx.EVT_MENU, self.onAbout, id=m_id )
### Init some icon in m_tree.
iList = wx.ImageList(16,16)
self.img_dict = {}
for icon_name in ['node-color', 'node-gray', 'edge-color', \
'edge-gray', 'graph-color', 'graph-gray', \
'graph-expand']:
img = wx.EmptyBitmap(16,16)
fn = resource_path('resource/icon/%s.png'%icon_name)
img.LoadFile(fn, wx.BITMAP_TYPE_PNG)
img_idx = iList.Add(img)
icon_key = tuple(icon_name.split('-'))
self.img_dict[icon_key] = img_idx
self.m_tree.AssignImageList(iList)
### Init some image list used in pg. --------------------------------------
self.image_list = {}
# Load colorscheme.
img_list = [ get_image_resource(None, 'colorscheme', cs) for cs in AttrsDef.E_COLORSCHEME ]
self.image_list['colorscheme'] = normalize_imglist(img_list)
# Load node shape.
img_list = [ get_image_resource('node', 'shape', ns) for ns in AttrsDef.E_SHAPE ]
self.image_list['node_shape'] = normalize_imglist(img_list)
# Load arrow style.
img_list = [ get_image_resource('edge', 'arrowhead', es) for es in AttrsDef.E_ARROWTYPE ]
self.image_list['arrow_style'] = normalize_imglist(img_list)
### Init graph. -----------------------------------------------------------
self.update_graph( ExtGraph.ExtGraph('G') )
### Register hotkey.
self.accel_tb = wx.AcceleratorTable([(wx.ACCEL_CTRL, ord('n'), self.m_bpButton_new.GetId()),
(wx.ACCEL_CTRL, ord('o'), self.m_bpButton_open.GetId()),
(wx.ACCEL_CTRL, ord('s'), self.m_bpButton_save.GetId()),
(wx.ACCEL_CTRL|wx.ACCEL_SHIFT, ord('s'), self.m_button_save_as.GetId()),
(wx.ACCEL_ALT, ord('s'), self.m_bpButton_script.GetId()),
(wx.ACCEL_CTRL, wx.WXK_RETURN, self.m_bpButton_script.GetId()),
(wx.ACCEL_ALT, wx.WXK_RETURN, self.m_bpButton_script.GetId()),
(wx.ACCEL_CTRL, ord('e'), self.m_bpButton_export.GetId()),
(wx.ACCEL_ALT, ord('a'), self.m_bpButton_add.GetId()),
(wx.ACCEL_ALT, ord('d'), self.m_bpButton_minus.GetId()),
(wx.ACCEL_ALT, ord('g'), self.m_bpButton_graphsetting.GetId()),
])
self.SetAcceleratorTable(self.accel_tb)
### Bind events.
self.m_panel_paint.Bind(wx.EVT_ERASE_BACKGROUND, self.onEraseBackground)
self.m_panel_paint.Bind(wx.EVT_MOUSEWHEEL, self.onMouseZoom)
self.m_panel_paint.Bind(wx.EVT_MOTION, self.onMouseMove)
self.m_panel_paint.Bind(wx.EVT_LEFT_UP, self.onLeftButtonUp)
self.m_panel_paint.Bind(wx.EVT_LEFT_DOWN, self.onLeftButtonDown)
self.Bind(wx.EVT_CLOSE, self.onClose)
self.m_pgManager1.Bind(wxpg.EVT_PG_SELECTED, self.onPGActive)
return
def __spread_tree(self, rootid):
'''A recursive function to add all data from graph into m_tree_ctrl.'''
_, graph = self.m_tree.GetItemPyData(rootid)
### Add wildcard nodes.
for n in ['node', 'edge']:
n_id = self.m_tree.AppendItem(rootid, n)
n_data = self.data_graph.EG_get_node_by_name(n, root_graph=graph)
self.m_tree.SetItemPyData(n_id, ('node', n_data))
self.m_tree.SetItemImage(n_id, self.img_dict[(n, 'gray')])
### Load nodes.
for n in graph.get_nodes():
n_name = remove_double_quote( n.get_name() )
if n_name.lower() in ['node', 'edge']: ### Skip the wildcard node.
continue
n_id = self.m_tree.AppendItem(rootid, n_name.decode('utf8'))
self.m_tree.SetItemPyData(n_id, ('node', n))
self.m_tree.SetItemImage(n_id, self.img_dict[('node', 'color')])
### Load edges.
for e in graph.get_edges():
n1 = remove_double_quote( e.get_source().decode('utf8') )
n2 = remove_double_quote( e.get_destination().decode('utf8') )
n_id = self.m_tree.AppendItem(rootid, "%s -> %s"%(n1,n2))
self.m_tree.SetItemPyData(n_id, ('edge', e))
self.m_tree.SetItemImage(n_id, self.img_dict[('edge', 'color')])
### Load subgraphs.
for sg in graph.get_subgraphs():
sg_name = remove_double_quote( sg.get_name().decode('utf8') )
n_id = self.m_tree.AppendItem(rootid, sg_name)
self.m_tree.SetItemPyData(n_id, ('graph', sg))
self.m_tree.SetItemImage(n_id, self.img_dict[('graph', 'color')])
self.__spread_tree(n_id)
return
def __calc_best_zoom_ratio(self):
if not self.data_graph.get_bitmap().IsOk():
return 1.0
w,h = self.data_graph.get_bitmap().GetSize()
w_win, h_win = self.m_panel_paint.GetSize()
ratio = min(w_win*1.0/w, h_win*1.0/h, 1.0)
return ratio
def __zoom_img(self, bitmap, zoom_ratio):
zc = self.__zoom_cache
if zc[0] != zoom_ratio or zc[1] is None or zc[2] != bitmap:
img = bitmap.ConvertToImage()
w, h = img.GetSize()
img = img.Scale(w*zoom_ratio, h*zoom_ratio, wx.IMAGE_QUALITY_HIGH)
result = img.ConvertToBitmap()
self.__zoom_cache = (zoom_ratio, result, bitmap)
else:
result = zc[1]
return result
def update_graph(self, graph=None):
'''Updata data graph and then refresh the whole UI. IF graph == None, just refresh the preview.'''
if not (graph is None):
self.data_graph = ExtGraph.ExtGraph(obj_dict=graph.obj_dict)
self.m_tree.DeleteAllItems()
self.m_pgManager1.Clear()
### Insert wildcard item at 1st.
g_name = remove_double_quote(self.data_graph.get_name().decode('utf8'))
root = self.m_tree.AddRoot(g_name, 1)
self.m_tree.SetItemPyData(root, ('graph', self.data_graph))
self.m_tree.SetItemImage(root, self.img_dict[('graph', 'color')])
self.__spread_tree(root)
self.m_tree.ExpandAll()
self.m_tree.SelectItem(root)
self.onItemSelected(None)
# Refresh image panel.
self.data_graph.refresh_bitmap()
# Set zoom ratio.
self.bitmap_zoom_ratio = 1.0
self.m_staticText_zoom.SetLabel('Zoom:%3d%%'%100)
else:
# Just refresh image panel.
self.data_graph.refresh_bitmap()
# Set scroll.
img = self.data_graph.get_bitmap()
vw = img.GetWidth()*self.bitmap_zoom_ratio
vh = img.GetHeight()*self.bitmap_zoom_ratio
self.m_panel_paint.SetVirtualSize((vw, vh))
self.m_panel_paint.SetScrollRate(20,20)
#self.m_panel_paint.SetScrollbars(1,1,vw, vh)
self.m_panel_paint.Refresh()
### Set window title.
title = 'Dot Editor'
if self.file_path is None:
if self.is_data_changed: title += ' - *'
else:
if self.is_data_changed:
title = 'Dot Editor - *'+self.file_path
else:
title = 'Dot Editor - '+self.file_path
self.SetTitle(title)
return
def changeZoom(self, zoom_ratio):
'''Change the zoom of preview panel.'''
if zoom_ratio == self.bitmap_zoom_ratio:
return True
min_zoom = self.__calc_best_zoom_ratio()
if zoom_ratio > self.MAX_ZOOM : zoom_ratio = self.MAX_ZOOM
if zoom_ratio < min_zoom: zoom_ratio = min_zoom
self.bitmap_zoom_ratio = zoom_ratio
self.m_staticText_zoom.SetLabel('Zoom:%3d%%'%(zoom_ratio*100.0))
img = self.data_graph.get_bitmap()
self.m_panel_paint.SetVirtualSize((img.GetWidth()*self.bitmap_zoom_ratio, \
img.GetHeight()*self.bitmap_zoom_ratio))
self.m_panel_paint.SetScrollRate(20,20)
self.m_panel_paint.Refresh()
return
def onZoom100(self, event):
'''Reset the zoom ratio to 100%.'''
self.changeZoom(1.0)
def onMouseZoom(self, event):
'''Capture the motion of "Ctrl+wheel" to zoom.'''
if event.ControlDown():
wd = event.GetWheelRotation()
zoom_ratio = self.bitmap_zoom_ratio
if wd > 0:
cursor = wx.StockCursor(wx.CURSOR_MAGNIFIER)
self.m_panel_paint.SetCursor(cursor)
zoom_ratio = self.bitmap_zoom_ratio + 0.05
elif wd < 0:
cursor = wx.StockCursor(wx.CURSOR_MAGNIFIER)
self.m_panel_paint.SetCursor(cursor)
zoom_ratio = self.bitmap_zoom_ratio - 0.05
self.changeZoom(zoom_ratio)
cursor = wx.StockCursor(wx.CURSOR_DEFAULT)
self.m_panel_paint.SetCursor(cursor)
return
def onMouseMove(self, event):
'''Capture the "drag" motion in preview window.'''
self.CurrentCursorPos = event.GetPosition()
if self.is_dragging:
p = self.m_panel_paint.GetScrollPixelsPerUnit()
diff = [0.0, 0.0]
delta_x = self.CurrentCursorPos[0] - self.LastClickPos[0]
delta_y = self.CurrentCursorPos[1] - self.LastClickPos[1]
# Why sign*abs/p? Cause the '/' operator is different to positive and nagative num.
sign = lambda x:math.copysign(1, x)
diff[0] = sign(delta_x)*(abs(delta_x) / p[0])
diff[1] = sign(delta_y)*(abs(delta_y) / p[1])
start_pos = self.m_panel_paint.GetViewStart()
x = start_pos[0] - diff[0]
y = start_pos[1] - diff[1]
self.m_panel_paint.Scroll(x, y)
### Record the old position. If some direction no enough step to
### scroll, leave it alone.
if diff[0] != 0:
if diff[1] != 0:
self.LastClickPos = self.CurrentCursorPos
else:
self.LastClickPos[0] = self.CurrentCursorPos[0]
else:
if diff[1] != 0:
self.LastClickPos[1] = self.CurrentCursorPos[1]
else:
pass
self.m_panel_paint.Refresh()
def onLeftButtonUp(self, event):
'''End the drag motion.'''
self.is_dragging = False
cursor = wx.StockCursor(wx.CURSOR_DEFAULT)
self.SetCursor(cursor)
def onLeftButtonDown(self, event):
'''Start the drag motion.'''
cursor = wx.StockCursor(wx.CURSOR_SIZING)
self.SetCursor(cursor)
self.CurrentCursorPos = event.GetPosition()
self.is_dragging = True
self.LastClickPos = self.CurrentCursorPos
event.Skip()
def onEraseBackground(self, event):
'''Paint the preview window.'''
img = self.data_graph.get_bitmap()
if not img.IsOk:
return
dc = wx.ClientDC(self.m_panel_paint)
dc.Clear()
img = self.__zoom_img( img, self.bitmap_zoom_ratio )
x1, y1 = self.m_panel_paint.GetViewStart()
dc.DrawBitmap(img, -1*20*x1,-1*20*y1)
return
def onGraphSetting(self, event):
dlg = DGS(self)
r = dlg.ShowModal()
if r == wx.ID_OK:
g_strict = dlg.m_checkBox_strict.GetValue()
if dlg.m_radioBox_type.GetSelection() == 0:
g_type = 'digraph'
else:
g_type = 'graph'
g_name = dlg.m_textCtrl_name.GetValue().strip().encode('utf8')
g_prog = dlg.m_choice_layout_cmd.GetStringSelection().strip().encode('utf8')
# Update graph settings.
g = self.data_graph
g.set_strict(g_strict)
g.set_type(g_type)
g.set_name(g_name)
g.prog = g_prog
self.update_graph()
def onAppendItem(self, event):
# Find root in m_tree to append.
i_id = self.m_tree.GetSelection()
if not i_id.IsOk():
wx.MessageBox("Please select a item as the append location.",
'Don\'t know where to append',
style=wx.OK|wx.ICON_EXCLAMATION)
return
_, i_type, i_graph = self.GetSelectedItem()
if i_type == 'graph':
root_id = i_id
root_graph = i_graph
else:
root_id = self.m_tree.GetItemParent(i_id)
root_graph = self.m_tree.GetItemPyData(root_id)[1]
dlg = DA(self)
r = dlg.ShowModal()
a_id = None
if r == wx.ID_OK:
v = dlg.getAppendValue()
if v[0] == 'node': ### Add node.
try:
a_data = self.data_graph.EG_append_node(v[1], root_graph=root_graph)
except:
wx.MessageBox('Can\'t add item "%s", maybe the same-named item was existed.'%(v[1].decode('utf8')),
'Found duplicated node name')
return
### Add item to tree.
a_id = self.m_tree.AppendItem(root_id, v[1].decode('utf8'))
self.m_tree.SetItemPyData(a_id, ('node', a_data))
self.m_tree.SetItemImage(a_id, self.img_dict[('node', 'color')])
elif v[0] == 'edge': ### Add edge.
n, n1 = v[1]
try:
a_data = self.data_graph.EG_append_edge((n,n1), root_graph=root_graph)
except:
wx.MessageBox('Can\'t add edge "%s -> %s", maybe the edge was existed.'%(n.decode('utf8'),n1.decode('utf8')),
'Found duplicated edge name')
return
### Add item to tree.
a_id = self.m_tree.AppendItem(root_id, n.decode('utf8')+' -> '+n1.decode('utf8'))
self.m_tree.SetItemPyData(a_id, ('edge', a_data))
self.m_tree.SetItemImage(a_id, self.img_dict[('edge', 'color')])
else: ### Add subgraph.
try:
a_data = self.data_graph.EG_append_subgraph(v[1], root_graph=root_graph)
except:
wx.MessageBox('Can\'t add item "%s", maybe the same-named subgraph was existed.'%(v[1].decode('utf8')),
'Found duplicated subgraph name')
return
### Add subgraph root to tree.
a_id = self.m_tree.AppendItem(root_id, v[1].decode('utf8'))
self.m_tree.SetItemPyData(a_id, ('graph', a_data))
self.m_tree.SetItemImage(a_id, self.img_dict[('graph', 'color')])
### Add wildcard nodes to subgraph.
for n in ['node', 'edge']:
n_id = self.m_tree.AppendItem(a_id, n)
n_data = self.data_graph.EG_get_node_by_name(n, root_graph=a_data)
self.m_tree.SetItemPyData(n_id, ('node', n_data) )
self.m_tree.SetItemImage(n_id, self.img_dict[(n, 'gray')])
self.m_tree.Expand(a_id)
### Set label.
label = escape_dot_string(dlg.m_textCtrl_label.GetValue())
if label != '':
a_data.set('label', add_double_quote(label.encode('utf8')))
### Select the item in tree.
if not a_id is None:
self.m_tree.SelectItem(a_id, True)
self.is_data_changed = True
self.update_graph()
dlg.Destroy()
return
def onDeleteItem(self, event):
# Skip the root.
selected_id = self.m_tree.GetSelection()
if not selected_id.IsOk():
return
if selected_id == self.m_tree.GetRootItem():
return
# Warning when delete NOT empty subgraph.
if self.m_tree.GetChildrenCount(selected_id) > 0:
md = wx.MessageDialog(self,
"The selected subgraph not EMPTY, to delete it should "+\
"lead to DATA LOST, continue anyway?",
caption="Confirm to delete",
style=wx.YES_NO|wx.NO_DEFAULT|wx.ICON_EXCLAMATION
)
if md.ShowModal() != wx.ID_YES:
return
# If no item selected.
if self.GetSelectedItem() is None:
return
i_name, i_type, _ = self.GetSelectedItem()
### Skip wildcard.
if i_name in ['node', 'edge']:
return
# Get root of selected item.
r_id = self.m_tree.GetItemParent(selected_id)
root_graph = self.m_tree.GetItemPyData(r_id)[1]
if i_type == 'node': ### Remove node from graph.
self.data_graph.EG_remove_node(i_name, root_graph=root_graph)
elif i_type == 'edge': ### Remove edge.
n1, n2 = i_name.split('->')
self.data_graph.EG_remove_edge((n1,n2), root_graph=root_graph)
else: ### Remove subgraph.
self.data_graph.EG_remove_subgraph(i_name, root_graph=root_graph)
### Delete from listctrl and clear pg panel.
self.m_tree.Delete(selected_id)
self.m_pgManager1.Clear()
### Fill pg panel.
self.onItemSelected(None)
# Update graph and UI.
self.is_data_changed = True
self.update_graph()
return
def GetSelectedItem(self):
i = self.m_tree.GetSelection()
if not i.IsOk:
return None
i_name = self.m_tree.GetItemText(i).strip()
i_type, item = self.m_tree.GetItemPyData(i)
return i_name, i_type, item
def onItemSelected(self, event):
# If no item selected.
selected_id = self.m_tree.GetSelection()
if not selected_id.IsOk():
return
i_name, i_type, item = self.GetSelectedItem()
# Change the title of pg.
_tail = ''
if i_name in ['node', 'edge']: ### Change the wildcard item's type.
i_type = i_name
_tail = '(wildcard)'
if selected_id == self.m_tree.GetRootItem():
_tail = '(global graph)'
pg_title = i_type.capitalize() + ' Properties'+_tail
self.m_staticText_pg.SetLabelText(pg_title)
### Read attrs from data_graph.
data_attrs = {}
if not item is None:
data_attrs = item.get_attributes()
### Build PGManager.
pm = self.m_pgManager1
pm.Clear()
pm.AddPage() ### Very important!!! No-page would cause some strange thing happened.
# Get attrs structure of the graph item.
cates, _, attrs_dict = AttrsDef.get_dot_attr_structure(i_type)
# Append pg items.
for _c in cates:
cat = wxpg.PropertyCategory(_c)
pm.Append(cat)
g_dict = attrs_dict[_c]
groups = g_dict.keys(); # groups.sort()
for _g in groups:
a_list = g_dict[_g]
if not _g is None:
g_attr = wxpg.StringProperty(_g, value='<composed>') ### Magic string to compose child value.
g_attr.Enable(False)
g_attr.SetHelpString('attributes group of "%s", click left plus to expand.'%_g)
g_id = pm.Append(g_attr)
for a_name in a_list:
pg = ExtPG.buildPG(a_name, i_type)
if _g is None:
pm.Append(pg)
else:
pm.AppendIn(g_id, pg)
# Set attr value read from data_graph.
if a_name in data_attrs.keys():
v = data_attrs[a_name]
pg.SetValue(remove_double_quote(to_unicode(v).decode('utf8')))
# Set background to blue if attr value is different from default.
pg.SetBackgroundColour('#ffffc0', -1)
#if not _g is None:
# pm.Collapse(g_attr)
return
def onPGActive(self, event):
p = self.m_pgManager1.GetSelectedProperty()
if (not p): ### No property in event or a group parent.
return
self.m_staticText1_hint.SetLabelText(p.GetHelpString())
def onPGChanged(self, event):
_, _, item = self.GetSelectedItem()
if item is None:
raise Exception("Sth strange happend! Can't find item to store attrs.")
return
p = event.GetProperty()
if (not p) or (not p.IsEnabled()): ### No property in event or a group parent.
return
### Get attr from property control.
key = str(p.GetName()) ### Important!!! Make sure 'key' not unicode.
if key.find('.') > 0: ### If child of a group.
key = key.split('.')[-1]
v = p.GetValue()
if isinstance(v, basestring):
v = v.strip().encode('utf8')
elif isinstance(v, types.BooleanType):
v = str(v).lower()
else:
v = str(v)
### Update attr.
uv = to_unicode(v); udv = to_unicode(str(p.GetDefaultValue()))
if uv == '' or uv.lower() == udv.lower():
try:
del item.get_attributes()[key]
except:
pass
# Restore the display value to default.
p.SetValue(p.GetDefaultValue())
v = p.GetDefaultValue()
else:
item.get_attributes()[key] = add_double_quote(v)
### Change PG background if value is different from default.
if uv == udv:
p.SetBackgroundColour(self.m_tree.GetBackgroundColour(), -1)
else:
p.SetBackgroundColour('#ffffc0', -1)
### Update view.
self.is_data_changed = True
self.update_graph()
return
def onNewGraph(self, event):
if self.is_data_changed:
md = wx.MessageDialog(self,
"Current Graph not save yet, create a new graph "+\
"should lead to DATA LOST, continue anyway?",
caption="Confirm to open",
style=wx.YES_NO|wx.NO_DEFAULT|wx.ICON_EXCLAMATION
)
if md.ShowModal() != wx.ID_YES:
return
self.file_path = None
self.is_data_changed = False
self.update_graph( ExtGraph.ExtGraph('G') )
return
def onOpenGraph(self, event):
if self.is_data_changed:
md = wx.MessageDialog(self,
"Current Graph not save yet, open another graph "+\
"should lead to DATA LOST, continue anyway?",
caption="Confirm to create new",
style=wx.YES_NO|wx.NO_DEFAULT|wx.ICON_EXCLAMATION
)
if md.ShowModal() != wx.ID_YES:
return
fd = wx.FileDialog(self, "Open Dot File", "", "",
"Graphviz Dot Script (*.*)|*.*",
wx.OPEN|wx.FD_FILE_MUST_EXIST)
if fd.ShowModal() == wx.ID_OK:
fp = fd.GetPath()
else:
return ### User canceled
fd.Destroy()
### Load graph from fp.
try:
g = ExtParser.parse_file(fp)
self.file_path = fp
self.is_data_changed = False
self.update_graph(g)
except ExtParser.ParseException, _:
wx.MessageBox('Can\'t load specified file. Maybe file format error. \n'+\
'Be sure the file is in graphviz dot language, or check \n'+\
'if some syntax error existed in specified file. ',
"Can't load file", wx.ICON_ERROR)
return
def onSaveGraph(self, event):
if self.file_path is None:
fd = wx.FileDialog(self, "Save Dot File", "", "",
"Dot Files (*.*)|*.*", wx.SAVE|wx.FD_SAVE)
if fd.ShowModal() == wx.ID_OK:
fp = fd.GetPath()
else:
return ### User canceled.
### Confirm to overwrite.
if os.path.isfile(fp):
md = wx.MessageDialog(self, 'Be sure to overwrite file "%s"'%fp,
caption="Confirm to save",
style=wx.YES_NO|wx.NO_DEFAULT|wx.ICON_EXCLAMATION
)
if md.ShowModal() != wx.ID_YES:
return ### User canceled.
else:
fp = self.file_path
### Backup old file.
if os.path.isfile(fp):
pn, fn = os.path.split(fp)
new_fp = os.path.join(pn, time.strftime('backup_%y%m%d%H%M%S') + '_' + fn)
shutil.copy(fp, new_fp)
### Save graph now.
f = open(fp, 'wb')
f.write(self.data_graph.EG_to_string())
#self.data_graph.write(fp)
self.file_path = fp
self.is_data_changed = False
self.update_graph()
return
def onSaveAs(self, event):
fd = wx.FileDialog(self, "Save Dot File As", "", "",
"Dot Files (*.*)|*.*", wx.SAVE|wx.FD_SAVE)
if fd.ShowModal() == wx.ID_OK:
fp = fd.GetPath()
else: