codekingpro/portable-devtools

1# Demo of using just windows, without documents and views.2 3# Also demo of a GUI thread, pretty much direct from the MFC C++ sample MTMDI.4 5import timer6import win32api7import win32con8import win32ui9from pywin.mfc import docview, thread, window10from pywin.mfc.thread import WinThread11 12WM_USER_PREPARE_TO_CLOSE = win32con.WM_USER + 3213 14# font is a dictionary in which the following elements matter:15# (the best matching font to supplied parameters is returned)16#   name		string name of the font as known by Windows17#   size		point size of font in logical units18#   weight		weight of font (win32con.FW_NORMAL, win32con.FW_BOLD)19#   italic		boolean; true if set to anything but None20#   underline	boolean; true if set to anything but None21 22 23# This window is a child window of a frame.  It is not the frame window itself.24class FontWindow(window.Wnd):25    def __init__(self, text="Python Rules!"):26        window.Wnd.__init__(self)27        self.text = text28        self.index = 029        self.incr = 130        self.width = self.height = 031        self.ChangeAttributes()32        # set up message handlers33 34    def Create(self, title, style, rect, parent):35        classStyle = win32con.CS_HREDRAW | win32con.CS_VREDRAW36        className = win32ui.RegisterWndClass(37            classStyle, 0, win32con.COLOR_WINDOW + 1, 038        )39        self._obj_ = win32ui.CreateWnd()40        self._obj_.AttachObject(self)41        self._obj_.CreateWindow(42            className, title, style, rect, parent, win32ui.AFX_IDW_PANE_FIRST43        )44        self.HookMessage(self.OnSize, win32con.WM_SIZE)45        self.HookMessage(self.OnPrepareToClose, WM_USER_PREPARE_TO_CLOSE)46        self.HookMessage(self.OnDestroy, win32con.WM_DESTROY)47        self.timerid = timer.set_timer(100, self.OnTimer)48        self.InvalidateRect()49 50    def OnDestroy(self, msg):51        timer.kill_timer(self.timerid)52 53    def OnTimer(self, id, timeVal):54        self.index = self.index + self.incr55        if self.index > len(self.text):56            self.incr = -157            self.index = len(self.text)58        elif self.index < 0:59            self.incr = 160            self.index = 061        self.InvalidateRect()62 63    def OnPaint(self):64        # 		print "Paint message from thread", win32api.GetCurrentThreadId()65        dc, paintStruct = self.BeginPaint()66        self.OnPrepareDC(dc, None)67 68        if self.width == 0 and self.height == 0:69            left, top, right, bottom = self.GetClientRect()70            self.width = right - left71            self.height = bottom - top72        x, y = self.width // 2, self.height // 273        dc.TextOut(x, y, self.text[: self.index])74        self.EndPaint(paintStruct)75 76    def ChangeAttributes(self):77        font_spec = {"name": "Arial", "height": 42}78        self.font = win32ui.CreateFont(font_spec)79 80    def OnPrepareToClose(self, params):81        self.DestroyWindow()82 83    def OnSize(self, params):84        lParam = params[3]85        self.width = win32api.LOWORD(lParam)86        self.height = win32api.HIWORD(lParam)87 88    def OnPrepareDC(self, dc, printinfo):89        # Set up the DC for forthcoming OnDraw call90        dc.SetTextColor(win32api.RGB(0, 0, 255))91        dc.SetBkColor(win32api.GetSysColor(win32con.COLOR_WINDOW))92        dc.SelectObject(self.font)93        dc.SetTextAlign(win32con.TA_CENTER | win32con.TA_BASELINE)94 95 96class FontFrame(window.MDIChildWnd):97    def __init__(self):98        pass  # Dont call base class doc/view version...99 100    def Create(self, title, rect=None, parent=None):101        style = win32con.WS_CHILD | win32con.WS_VISIBLE | win32con.WS_OVERLAPPEDWINDOW102        self._obj_ = win32ui.CreateMDIChild()103        self._obj_.AttachObject(self)104 105        self._obj_.CreateWindow(None, title, style, rect, parent)106        rect = self.GetClientRect()107        rect = (0, 0, rect[2] - rect[0], rect[3] - rect[1])108        self.child = FontWindow("Not threaded")109        self.child.Create(110            "FontDemo", win32con.WS_CHILD | win32con.WS_VISIBLE, rect, self111        )112 113 114class TestThread(WinThread):115    def __init__(self, parentWindow):116        self.parentWindow = parentWindow117        self.child = None118        WinThread.__init__(self)119 120    def InitInstance(self):121        rect = self.parentWindow.GetClientRect()122        rect = (0, 0, rect[2] - rect[0], rect[3] - rect[1])123 124        self.child = FontWindow()125        self.child.Create(126            "FontDemo", win32con.WS_CHILD | win32con.WS_VISIBLE, rect, self.parentWindow127        )128        self.SetMainFrame(self.child)129        return WinThread.InitInstance(self)130 131    def ExitInstance(self):132        return 0133 134 135class ThreadedFontFrame(window.MDIChildWnd):136    def __init__(self):137        pass  # Dont call base class doc/view version...138        self.thread = None139 140    def Create(self, title, rect=None, parent=None):141        style = win32con.WS_CHILD | win32con.WS_VISIBLE | win32con.WS_OVERLAPPEDWINDOW142        self._obj_ = win32ui.CreateMDIChild()143        self._obj_.CreateWindow(None, title, style, rect, parent)144        self._obj_.HookMessage(self.OnDestroy, win32con.WM_DESTROY)145        self._obj_.HookMessage(self.OnSize, win32con.WM_SIZE)146 147        self.thread = TestThread(self)148        self.thread.CreateThread()149 150    def OnSize(self, msg):151        pass152 153    def OnDestroy(self, msg):154        win32ui.OutputDebugString("OnDestroy\n")155        if self.thread and self.thread.child:156            child = self.thread.child157            child.SendMessage(WM_USER_PREPARE_TO_CLOSE, 0, 0)158            win32ui.OutputDebugString("Destroyed\n")159 160 161def Demo():162    f = FontFrame()163    f.Create("Font Demo")164 165 166def ThreadedDemo():167    rect = win32ui.GetMainFrame().GetMDIClient().GetClientRect()168    rect = rect[0], int(rect[3] * 3 / 4), int(rect[2] / 4), rect[3]169    incr = rect[2]170    for i in range(4):171        if i == 0:172            f = FontFrame()173            title = "Not threaded"174        else:175            f = ThreadedFontFrame()176            title = "Threaded GUI Demo"177        f.Create(title, rect)178        rect = rect[0] + incr, rect[1], rect[2] + incr, rect[3]179    # Givem a chance to start180    win32api.Sleep(100)181    win32ui.PumpWaitingMessages()182 183 184if __name__ == "__main__":185    import demoutils186 187    if demoutils.NeedGoodGUI():188        ThreadedDemo()189# 		Demo()190