Главная » 2015 Сентябрь 14 » Вопрос.
10:14 Вопрос. | |
| #В этом графическом Контексте Rectangl передвигается без проблем. Можно ли так же передвигать Arc ??? (Я пока не знаю как настроить ЖЖ под правильное расставление пробелов.)import wximport randomimport timeW = 10000H = 10000SW = 1000for i in range(1): id = wx.NewId() dc.SetId(id) x = 145 y = 290 x2 = 175 y2 = 260 xc = 145 yc = 210 pen = self.pen dc.SetPen(pen) dc.SetBrush(wx.Brush((200,2,200))) dc.DrawArc( x, y, x2, y2, xc, yc) r = wx.Rect( x , y2, x2, y) r.Inflate(pen.GetWidth(),pen.GetWidth()) dc.SetIdBounds(id,r) self.objids.append(id)SH = 1000klv = 0colours = [ "BLACK", "BLUE", "BLUE VIOLET", "BROWN", "CYAN", "DARK GREY", "DARK GREEN", "GOLD", "GREY", "GREEN", "MAGENTA", "NAVY", "PINK", "RED", "SKY BLUE", "VIOLET", "YELLOW", ]class MyFrame( wx.Frame ): def __init__( self, parent ): wx.Frame.__init__( self, parent, size = ( 900 , 450 ) ) self.canvas = MyPanel( self )class MyPanel( wx.ScrolledWindow ): def __init__( self, parent ): wx.ScrolledWindow.__init__( self, parent ) self.SetVirtualSize((H , W)) self.SetScrollRate(20,20) self.pdc = wx.PseudoDC() self.parent = parent self.color = "blue" self.thickness = 1 self.pen = wx.Pen(self.color, self.thickness, wx.STIPPLE) self.DoDrawing(self.pdc)# self.Refresh() self.dragid = -1 self.Bind( wx.EVT_PAINT, self.OnPaint ) self.Bind(wx.EVT_MOUSE_EVENTS, self.OnMouse) def OnPaint(self, event): dc = wx.BufferedPaintDC(self) self.PrepareDC(dc) # we need to clear the dc BEFORE calling PrepareDC bg = wx.Brush(self.GetBackgroundColour()) dc.SetBackground(bg) dc.Clear() # create a clipping rect from our position and size # and the Update Region xv, yv = self.GetViewStart() dx, dy = self.GetScrollPixelsPerUnit() x, y = (xv * dx, yv * dy) rgn = self.GetUpdateRegion() rgn.Offset(x,y) r = rgn.GetBox()# print r # draw to the dc using the calculated clipping rect self.pdc.DrawToDCClipped(dc,r) def DoDrawing(self, dc): random.seed() self.objids = [] self.boundsdict = {} dc.BeginDrawing() for i in range(1): id = wx.NewId() dc.SetId(id) x = 145 y = 290 x2 = 175 y2 = 260 xc = 145 yc = 210 pen = self.pen dc.SetPen(pen) dc.SetBrush(wx.Brush((200,2,200))) dc.DrawArc( x, y, x2, y2, xc, yc) r = wx.Rect( x , y2, x2, y) r.Inflate(pen.GetWidth(),pen.GetWidth()) dc.SetIdBounds(id,r) self.objids.append(id) for i in range(1): id = wx.NewId() dc.SetId(id) x = 445 y = 190 x2 = 175 y2 = 260 pen = self.pen dc.SetPen(pen) dc.SetBrush(wx.Brush((200,2,200))) dc.DrawRectangle( x, y, x2, y2) r = wx.Rect( x , y, x2, y2) r.Inflate(pen.GetWidth(),pen.GetWidth()) dc.SetIdBounds(id,r) self.objids.append(id) dc.EndDrawing() def ConvertEventCoords(self, event): xView, yView = self.GetViewStart() xDelta, yDelta = self.GetScrollPixelsPerUnit() return (event.GetX() + (xView * xDelta), event.GetY() + (yView * yDelta)) def OffsetRect(self, r): xView, yView = self.GetViewStart() xDelta, yDelta = self.GetScrollPixelsPerUnit() r.OffsetXY(-(xView*xDelta),-(yView*yDelta)) def OnMouse(self, event): hitradius = 5 if event.LeftDown(): x,y = self.ConvertEventCoords(event) l = self.pdc.FindObjectsByBBox(x, y)# l = self.pdc.FindObjects(x, y, hitradius) for id in l: if not self.pdc.GetIdGreyedOut(id): self.dragid = id self.lastpos = (event.GetX(),event.GetY()) break elif event.RightDown(): x,y = self.ConvertEventCoords(event) #l = self.pdc.FindObjectsByBBox(x, y) l = self.pdc.FindObjects(x, y, hitradius) if l: self.pdc.SetIdGreyedOut(l[0], not self.pdc.GetIdGreyedOut(l[0])) r = self.pdc.GetIdBounds(l[0]) r.Inflate(4,4) self.OffsetRect(r) self.RefreshRect(r, False) elif event.Dragging() or event.LeftUp(): if self.dragid == '__main__': app = wx.PySimpleApp() frame = MyFrame( None ) frame.Show(True) app.MainLoop() | |
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