-
-from wxPython.wx import *
-
-import thread
-import time
-from whrandom import random
+# 11/13/2003 - Jeff Grimmett (grimmtooth@softhome.net)
+#
+# o Updated for wx namespace
+# o Replaced deprecated whrandom with random module.
+#
+# 11/13/2003 - Jeff Grimmett (grimmtooth@softhome.net)
+#
+# o Currently uses lib.newevent; should probably be updated to use
+# new-style event binder. OTOH, this is the only place we get
+# to see that library used that I know of.
+#
+
+import random
+import time
+import thread
+
+import wx
+import wx.lib.newevent
#----------------------------------------------------------------------
-wxEVT_UPDATE_BARGRAPH = wxNewEventType()
-
-def EVT_UPDATE_BARGRAPH(win, func):
- win.Connect(-1, -1, wxEVT_UPDATE_BARGRAPH, func)
-
-
-class UpdateBarEvent(wxPyEvent):
- def __init__(self, barNum, value):
- wxPyEvent.__init__(self)
- self.SetEventType(wxEVT_UPDATE_BARGRAPH)
- self.barNum = barNum
- self.value = value
+# This creates a new Event class and a EVT binder function
+(UpdateBarEvent, EVT_UPDATE_BARGRAPH) = wx.lib.newevent.NewEvent()
#----------------------------------------------------------------------
def Run(self):
while self.keepGoing:
- evt = UpdateBarEvent(self.barNum, int(self.val))
- wxPostEvent(self.win, evt)
+ evt = UpdateBarEvent(barNum = self.barNum, value = int(self.val))
+ wx.PostEvent(self.win.GetEventHandler(), evt)
#del evt
- sleeptime = (random() * 2) + 0.5
+ sleeptime = (random.random() * 2) + 0.5
time.sleep(sleeptime/4)
sleeptime = sleeptime * 5
- if int(random() * 2):
+ if int(random.random() * 2):
self.val = self.val + sleeptime
else:
self.val = self.val - sleeptime
#----------------------------------------------------------------------
-class GraphWindow(wxWindow):
+class GraphWindow(wx.Window):
def __init__(self, parent, labels):
- wxWindow.__init__(self, parent, -1)
+ wx.Window.__init__(self, parent, -1)
self.values = []
for label in labels:
self.values.append((label, 0))
- font = wxFont(12, wxSWISS, wxNORMAL, wxBOLD)
+ font = wx.Font(12, wx.SWISS, wx.NORMAL, wx.BOLD)
self.SetFont(font)
- self.colors = [ wxRED, wxGREEN, wxBLUE, wxCYAN,
+ self.colors = [ wx.RED, wx.GREEN, wx.BLUE, wx.CYAN,
"Yellow", "Navy" ]
- EVT_ERASE_BACKGROUND(self, self.OnEraseBackground)
- EVT_PAINT(self, self.OnPaint)
+ self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground)
+ self.Bind(wx.EVT_PAINT, self.OnPaint)
def SetValue(self, index, value):
def SetFont(self, font):
- wxWindow.SetFont(self, font)
+ wx.Window.SetFont(self, font)
wmax = hmax = 0
for label, val in self.values:
w,h = self.GetTextExtent(label)
def Draw(self, dc, size):
dc.SetFont(self.GetFont())
- dc.SetTextForeground(wxBLUE)
- dc.SetBackground(wxBrush(self.GetBackgroundColour()))
+ dc.SetTextForeground(wx.BLUE)
+ dc.SetBackground(wx.Brush(self.GetBackgroundColour()))
dc.Clear()
- dc.SetPen(wxPen(wxBLACK, 3, wxSOLID))
- dc.DrawLine(self.linePos, 0, self.linePos, size.height-10)
+ dc.SetPen(wx.Pen(wx.BLACK, 3, wx.SOLID))
+ dc.DrawLine((self.linePos, 0), (self.linePos, size.height-10))
bh = ypos = self.barHeight
for x in range(len(self.values)):
label, val = self.values[x]
- dc.DrawText(label, 5, ypos)
+ dc.DrawText(label, (5, ypos))
if val:
color = self.colors[ x % len(self.colors) ]
- dc.SetPen(wxPen(color))
- dc.SetBrush(wxBrush(color))
- dc.DrawRectangle(self.linePos+3, ypos, val, bh)
+ dc.SetPen(wx.Pen(color))
+ dc.SetBrush(wx.Brush(color))
+ dc.DrawRectangle((self.linePos+3, ypos), (val, bh))
ypos = ypos + 2*bh
- if ypos > size.height-10:
+ if ypos > size[1]-10:
break
def OnPaint(self, evt):
- size = self.GetSize()
- bmp = wxEmptyBitmap(size.width, size.height)
- dc = wxMemoryDC()
+ width, height = size =self.GetSize()
+ bmp = wx.EmptyBitmap(width, height)
+
+ dc = wx.MemoryDC()
dc.SelectObject(bmp)
+
+
self.Draw(dc, size)
- wdc = wxPaintDC(self)
+ wdc = wx.PaintDC(self)
wdc.BeginDrawing()
- wdc.Blit(0,0, size.width, size.height, dc, 0,0)
+ wdc.Blit((0,0), size, dc, (0,0))
wdc.EndDrawing()
- dc.SelectObject(wxNullBitmap)
+ dc.SelectObject(wx.NullBitmap)
def OnEraseBackground(self, evt):
#----------------------------------------------------------------------
-class TestFrame(wxFrame):
+class TestFrame(wx.Frame):
def __init__(self, parent, log):
- wxFrame.__init__(self, parent, -1, "Thread Test", size=(450,300))
+ wx.Frame.__init__(self, parent, -1, "Thread Test", size=(450,300))
self.log = log
#self.CenterOnParent()
- panel = wxPanel(self, -1)
- panel.SetFont(wxFont(10, wxSWISS, wxNORMAL, wxBOLD))
- wxStaticText(panel, -1,
+ panel = wx.Panel(self, -1)
+ panel.SetFont(wx.Font(10, wx.SWISS, wx.NORMAL, wx.BOLD))
+ wx.StaticText(panel, -1,
"This demo shows multiple threads interacting with this\n"
"window by sending events to it, one thread for each bar.",
- wxPoint(5,5))
+ (5,5))
panel.Fit()
self.graph = GraphWindow(self, ['Zero', 'One', 'Two', 'Three', 'Four',
'Five', 'Six', 'Seven'])
self.graph.SetSize((450, self.graph.GetBestHeight()))
- sizer = wxBoxSizer(wxVERTICAL)
- sizer.Add(panel, 0, wxEXPAND)
- sizer.Add(self.graph, 1, wxEXPAND)
+ sizer = wx.BoxSizer(wx.VERTICAL)
+ sizer.Add(panel, 0, wx.EXPAND)
+ sizer.Add(self.graph, 1, wx.EXPAND)
self.SetSizer(sizer)
self.SetAutoLayout(True)
sizer.Fit(self)
- EVT_UPDATE_BARGRAPH(self, self.OnUpdate)
+ self.Bind(EVT_UPDATE_BARGRAPH, self.OnUpdate)
+
self.threads = []
self.threads.append(CalcBarThread(self, 0, 50))
self.threads.append(CalcBarThread(self, 1, 75))
for t in self.threads:
t.Start()
- EVT_CLOSE(self, self.OnCloseWindow)
+ self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
def OnUpdate(self, evt):
def OnCloseWindow(self, evt):
- busy = wxBusyInfo("One moment please, waiting for threads to die...")
- wxYield()
+ busy = wx.BusyInfo("One moment please, waiting for threads to die...")
+ wx.Yield()
+
for t in self.threads:
t.Stop()
+
running = 1
+
while running:
running = 0
+
for t in self.threads:
running = running + t.IsRunning()
+
time.sleep(0.1)
+
self.Destroy()
need to take that into account.
The solution is to only allow interaction with the GUI from a single
-thread, but this often severly limits what can be done in an
+thread, but this often severely limits what can be done in an
application and makes it difficult to use additional threads at all.
Since wxPython already makes extensive use of event handlers, it is a
logical extension to allow events to be sent to GUI objects from
-alternate threads. A function called wxPostEvent allows you to do
+alternate threads. A function called wx.PostEvent allows you to do
this. It accepts an event and an event handler (window) and instead
of sending the event immediately in the current context like
ProcessEvent does, it processes it later from the context of the GUI
projects / wxWidgets.git / blobdiff