]> git.saurik.com Git - wxWidgets.git/blobdiff - wxPython/demo/Threads.py
new DC API fix
[wxWidgets.git] / wxPython / demo / Threads.py
index b1dce085a67c2af993fff54a91ec293fde83f4c6..7f66ee85fd4944c8d6f562ed49c88cfa862ead4e 100644 (file)
@@ -1,24 +1,15 @@
 
-from wxPython.wx import *
+import  random
+import  time
+import  thread
 
-import thread
-import time
-from   whrandom import random
+import  wx
+import  wx.lib.newevent
 
 #----------------------------------------------------------------------
 
-wxEVT_UPDATE_BARGRAPH = 25015
-
-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()
 
 
 #----------------------------------------------------------------------
@@ -30,27 +21,26 @@ class CalcBarThread:
         self.val = val
 
     def Start(self):
-        self.keepGoing = self.running = true
+        self.keepGoing = self.running = True
         thread.start_new_thread(self.Run, ())
 
     def Stop(self):
-        self.keepGoing = false
+        self.keepGoing = False
 
     def IsRunning(self):
         return self.running
 
     def Run(self):
         while self.keepGoing:
-            evt = UpdateBarEvent(self.barNum, int(self.val))
-            wxPostEvent(self.win, evt)
-            del evt
+            evt = UpdateBarEvent(barNum = self.barNum, value = int(self.val))
+            wx.PostEvent(self.win.GetEventHandler(), evt)
+            #del evt
 
-            sleeptime = (random() * 2) + 0.5
-            #print self.barNum, 'sleeping for', sleeptime
-            time.sleep(sleeptime)
+            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
@@ -58,27 +48,27 @@ class CalcBarThread:
             if self.val < 0: self.val = 0
             if self.val > 300: self.val = 300
 
-        self.running = false
+        self.running = False
 
 #----------------------------------------------------------------------
 
 
-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):
@@ -88,7 +78,7 @@ class GraphWindow(wxWindow):
 
 
     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)
@@ -104,41 +94,44 @@ class GraphWindow(wxWindow):
 
     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):
@@ -149,38 +142,35 @@ class GraphWindow(wxWindow):
 
 #----------------------------------------------------------------------
 
-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.", wxPoint(5,5))
+                     "window by sending events to it, one thread for each bar.",
+                     (5,5))
         panel.Fit()
 
         self.graph = GraphWindow(self, ['Zero', 'One', 'Two', 'Three', 'Four',
                                         'Five', 'Six', 'Seven'])
-        self.graph.SetSize((-1, self.graph.GetBestHeight()))
+        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)
+        self.SetAutoLayout(True)
         sizer.Fit(self)
 
-        #self.graph.SetValue(0, 25)
-        #self.graph.SetValue(1, 50)
-        #self.graph.SetValue(2, 75)
-        #self.graph.SetValue(3, 100)
+        self.Bind(EVT_UPDATE_BARGRAPH, self.OnUpdate)
 
-        EVT_UPDATE_BARGRAPH(self, self.OnUpdate)
         self.threads = []
         self.threads.append(CalcBarThread(self, 0, 50))
         self.threads.append(CalcBarThread(self, 1, 75))
@@ -194,24 +184,31 @@ class TestFrame(wxFrame):
         for t in self.threads:
             t.Start()
 
-        EVT_CLOSE(self, self.OnCloseWindow)
+        self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
 
 
     def OnUpdate(self, evt):
         self.graph.SetValue(evt.barNum, evt.value)
-        self.graph.Refresh(false)
+        self.graph.Refresh(False)
 
 
     def OnCloseWindow(self, evt):
-        busy = wxBusyInfo("One moment please, waiting for threads to die...")
+        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()
 
 
@@ -221,7 +218,7 @@ class TestFrame(wxFrame):
 def runTest(frame, nb, log):
     win = TestFrame(frame, log)
     frame.otherWin = win
-    win.Show(true)
+    win.Show(True)
     return None
 
 #----------------------------------------------------------------------
@@ -236,15 +233,23 @@ so any cross platform GUI Toolkit and applications written with it
 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
 thread.
 
 """
+
+
+
+if __name__ == '__main__':
+    import sys,os
+    import run
+    run.main(['', os.path.basename(sys.argv[0])])
+