我们从Python开源项目中，提取了以下5个代码示例，用于说明如何使用wx.EVT_MOUSEWHEEL。
def BindEvents(self): self.Bind(wx.EVT_PAINT, self.OnPaint) self.Bind(wx.EVT_ERASE_BACKGROUND, lambda e: None) self.Bind(wx.EVT_RIGHT_DOWN, self.OnButtonDown) self.Bind(wx.EVT_LEFT_DOWN, self.OnButtonDown) self.Bind(wx.EVT_MIDDLE_DOWN, self.OnButtonDown) self.Bind(wx.EVT_RIGHT_UP, self.OnButtonUp) self.Bind(wx.EVT_LEFT_UP, self.OnButtonUp) self.Bind(wx.EVT_MIDDLE_UP, self.OnButtonUp) self.Bind(wx.EVT_MOUSEWHEEL, self.OnMouseWheel) self.Bind(wx.EVT_MOTION, self.OnMotion) self.Bind(wx.EVT_ENTER_WINDOW, self.OnEnter) self.Bind(wx.EVT_LEAVE_WINDOW, self.OnLeave) self.Bind(wx.EVT_CHAR, self.OnKeyDown) self.Bind(wx.EVT_KEY_UP, self.OnKeyUp) if wx.Platform == "__WXGTK__": # wxGTK requires that the window be created before you can # set its shape, so delay the call to SetWindowShape until # this event. self.Bind(wx.EVT_WINDOW_CREATE, self.OnWindowCreate) else: # On wxMSW and wxMac the window has already been created. self.Bind(wx.EVT_SIZE, self.OnSize) if _useCapture and hasattr(wx, 'EVT_MOUSE_CAPTURE_LOST'): self.Bind(wx.EVT_MOUSE_CAPTURE_LOST, self.OnMouseCaptureLost)
def __init__(self, parent, manager=None): attribList = attribs = (glcanvas.WX_GL_RGBA, glcanvas.WX_GL_DOUBLEBUFFER, glcanvas.WX_GL_DEPTH_SIZE, 24) glcanvas.GLCanvas.__init__(self, parent, -1, attribList=attribList) self.init = False self.context = glcanvas.GLContext(self) self.manager = self.manager = Manager() if manager is None else manager self.size = None self.SetBackgroundStyle(wx.BG_STYLE_PAINT) self.Bind(wx.EVT_SIZE, self.OnSize) self.Bind(wx.EVT_PAINT, self.OnPaint) self.Bind(wx.EVT_LEFT_DOWN, self.OnMouseDown) self.Bind(wx.EVT_LEFT_UP, self.OnMouseUp) self.Bind(wx.EVT_MOTION, self.OnMouseMotion) self.Bind(wx.EVT_MOUSEWHEEL, self.OnMouseWheel) self.lastx, self.lasty = None, None self.update = True #print('init===========')
def __init__(self, parent, id=wx.ID_ANY, pos=wx.DefaultPosition, size=wx.DefaultSize, style=wx.NO_BORDER): wx.Panel.__init__(self, parent, id=id, pos=pos, size=size, style=style) self.Viewport = wx.Panel(self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.NO_BORDER) self.Scrollbar = wx.ScrollBar(self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.SB_VERTICAL) sizer = wx.BoxSizer(wx.HORIZONTAL) sizer.Add(self.Viewport, 1, wx.EXPAND, 0) sizer.Add(self.Scrollbar, 0, wx.EXPAND, 0) self.SetSizer(sizer) self.Layout() sizer.Fit(self) self._presenter = Presenter.from_window(self.Viewport.GetHandle(), config.SCALE) self._graphics = None self._font = None self._entities = None self._selected_index = -1 self.Viewport.Bind(wx.EVT_PAINT, self.paint) self.Viewport.Bind(wx.EVT_SIZE, self.resize) self.Viewport.Bind(wx.EVT_MOUSEWHEEL, self.mouse_wheel) self.Viewport.Bind(wx.EVT_LEFT_DOWN, self.mouse_left_down) self.Scrollbar.Bind(wx.EVT_SCROLL, self.scroll)
def __init__(self, parent, id=wx.ID_ANY, pos=wx.DefaultPosition, size=wx.DefaultSize, style=wx.NO_BORDER): wx.Panel.__init__(self, parent, id=id, pos=pos, size=size, style=style) self.Viewport = wx.Panel(self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.NO_BORDER) self.Scrollbar = wx.ScrollBar(self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.SB_VERTICAL) sizer = wx.BoxSizer(wx.HORIZONTAL) sizer.Add(self.Viewport, 1, wx.EXPAND, 0) sizer.Add(self.Scrollbar, 0, wx.EXPAND, 0) self.SetSizer(sizer) self.Layout() sizer.Fit(self) self.Scrollbar.SetScrollbar(0, 0, 0, 0) self._presenter = Presenter.from_window(self.Viewport.GetHandle(), config.SCALE) self._camera = Camera(0, 0, 0, 0) self._tilemap = None self._tileset = None self._select_start = None self._select_end = None self._show_collision = False self.Viewport.Bind(wx.EVT_PAINT, self.paint) self.Viewport.Bind(wx.EVT_SIZE, self.resize) self.Viewport.Bind(wx.EVT_MOUSEWHEEL, self.mouse_wheel) self.Viewport.Bind(wx.EVT_LEFT_DOWN, self.mouse_left_down) self.Viewport.Bind(wx.EVT_LEFT_UP, self.mouse_left_up) self.Viewport.Bind(wx.EVT_MOTION, self.mouse_move) self.Scrollbar.Bind(wx.EVT_SCROLL, self.scroll)
def SetScale(self, scale_number, refresh=True, mouse_event=None): new_scale = max(0, min(scale_number, len(ZOOM_FACTORS) - 1)) if self.CurrentScale != new_scale: if refresh: dc = self.GetLogicalDC() self.CurrentScale = new_scale self.ViewScale = (ZOOM_FACTORS[self.CurrentScale], ZOOM_FACTORS[self.CurrentScale]) if refresh: self.Editor.Freeze() if mouse_event is None: client_size = self.Editor.GetClientSize() mouse_pos = wx.Point(client_size[0] / 2, client_size[1] / 2) mouse_event = wx.MouseEvent(wx.EVT_MOUSEWHEEL.typeId) mouse_event.x = mouse_pos.x mouse_event.y = mouse_pos.y else: mouse_pos = mouse_event.GetPosition() pos = mouse_event.GetLogicalPosition(dc) xmax = self.GetScrollRange(wx.HORIZONTAL) - self.GetScrollThumb(wx.HORIZONTAL) ymax = self.GetScrollRange(wx.VERTICAL) - self.GetScrollThumb(wx.VERTICAL) scrollx = max(0, round(pos.x * self.ViewScale[0] - mouse_pos.x) / SCROLLBAR_UNIT) scrolly = max(0, round(pos.y * self.ViewScale[1] - mouse_pos.y) / SCROLLBAR_UNIT) if scrollx > xmax or scrolly > ymax: self.RefreshScrollBars(max(0, scrollx - xmax), max(0, scrolly - ymax)) self.Scroll(scrollx, scrolly) else: self.Scroll(scrollx, scrolly) self.RefreshScrollBars() self.RefreshScaling(refresh) self.Editor.Thaw()
