floatcanvas.py

用wxPython编写GUI程序的样例代码

            x = 20
            y += dy
            color = "LightBlue"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color)
            R.Name = color + " Rectangle"
            R.Bind(FloatCanvas.EVT_FC_RIGHT_DOWN, self.RectGotHit)
            Canvas.AddText("Right Click Fill", (x, y), Size = FontSize,  Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "Grey"
            R = Canvas.AddEllipse((x, y), (w, h),LineWidth = 2,FillColor = color)
            R.Name = color +" Ellipse"
            R.Bind(FloatCanvas.EVT_FC_RIGHT_DOWN, self.RectGotHit)
            Canvas.AddText("Right Click Fill", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "Brown"
            R = Canvas.AddCircle((x+dx/2, y+dy/2), dx/4, LineWidth = 2, FillColor = color)
            R.Name = color + " Circle"
            R.HitFill = True
            R.Bind(FloatCanvas.EVT_FC_LEFT_DCLICK, self.RectGotHit)
            Canvas.AddText("Left D-Click Fill", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x = 20
            y += dy
            color = "Pink"
            R = Canvas.AddCircle((x+dx/2, y+dy/2), dx/4, LineWidth = 2,FillColor = color)
            R.Name = color +  " Circle"
            R.Bind(FloatCanvas.EVT_FC_LEFT_UP, self.RectGotHit)
            Canvas.AddText("Left Up Fill", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "White"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color)
            R.Name = color + " Rectangle"
            R.Bind(FloatCanvas.EVT_FC_MIDDLE_DOWN, self.RectGotHit)
            Canvas.AddText("Middle Down", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "AQUAMARINE"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color)
            R.Name = color + " Rectangle"
            R.Bind(FloatCanvas.EVT_FC_MIDDLE_UP, self.RectGotHit)
            Canvas.AddText("Middle Up", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x = 20
            y += dy
            color = "CORAL"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color)
            R.Name = color + " Rectangle"
            R.Bind(FloatCanvas.EVT_FC_MIDDLE_DCLICK, self.RectGotHit)
            Canvas.AddText("Middle DoubleClick", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "CYAN"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color)
            R.Name = color + " Rectangle"
            R.Bind(FloatCanvas.EVT_FC_RIGHT_UP, self.RectGotHit)
            Canvas.AddText("Right Up", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "LIME GREEN"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color)
            R.Name = color + " Rectangle"
            R.Bind(FloatCanvas.EVT_FC_RIGHT_DCLICK, self.RectGotHit)
            Canvas.AddText("Right Double Click", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x = 20
            y += dy
            color = "MEDIUM GOLDENROD"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color)
            R.Name = color
            R.Bind(FloatCanvas.EVT_FC_RIGHT_DOWN, self.RectGotHitRight)
            R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHitLeft)
            Canvas.AddText("L and R Click", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "SALMON"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color)
            R.Name = color + " Rectangle"
            R.Bind(FloatCanvas.EVT_FC_ENTER_OBJECT, self.RectMouseOver)
            Canvas.AddText("Mouse Enter", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "MEDIUM VIOLET RED"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color)
            R.Name = color
            R.Bind(FloatCanvas.EVT_FC_LEAVE_OBJECT, self.RectMouseLeave)
            Canvas.AddText("Mouse Leave", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x = 20
            y += dy
            color = "SKY BLUE"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color)
            R.Name = color
            R.Bind(FloatCanvas.EVT_FC_ENTER_OBJECT, self.RectMouseOver)
            R.Bind(FloatCanvas.EVT_FC_LEAVE_OBJECT, self.RectMouseLeave)
            Canvas.AddText("Enter and Leave", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "WHEAT"
            R = Canvas.AddRectangle((x, y), (w+12, h), LineColor = None, FillColor = color)
            R.Name = color
            R.Bind(FloatCanvas.EVT_FC_ENTER_OBJECT, self.RectMouseOver)
            R.Bind(FloatCanvas.EVT_FC_LEAVE_OBJECT, self.RectMouseLeave)
            Canvas.AddText("Mouse Enter&Leave", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "KHAKI"
            R = Canvas.AddRectangle((x-12, y), (w+12, h), LineColor = None, FillColor = color)
            R.Name = color
            R.Bind(FloatCanvas.EVT_FC_ENTER_OBJECT, self.RectMouseOver)
            R.Bind(FloatCanvas.EVT_FC_LEAVE_OBJECT, self.RectMouseLeave)
            Canvas.AddText("Mouse Enter&Leave", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x = 20
            y += dy
            L = Canvas.AddLine(( (x, y), (x+10, y+10), (x+w, y+h) ), LineWidth = 2, LineColor = "Red")
            L.Name = "A Line"
            L.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHitLeft)
            Canvas.AddText("Left Down", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(L.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "SEA GREEN"
            Points = N.array(( (x, y), (x, y+2.*h/3), (x+w, y+h), (x+w, y+h/2.), (x + 2.*w/3, y+h/2.), (x + 2.*w/3,y) ), N.float_)
            R = Canvas.AddPolygon(Points,  LineWidth = 2, FillColor = color)
            R.Name = color + " Polygon"
            R.Bind(FloatCanvas.EVT_FC_RIGHT_DOWN, self.RectGotHitRight)
            Canvas.AddText("RIGHT_DOWN", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x += dx
            color = "Red"
            Points = N.array(( (x, y), (x, y+2.*h/3), (x+w, y+h), (x+w, y+h/2.), (x + 2.*w/3, y+h/2.), (x + 2.*w/3,y) ), N.float_)
            R = Canvas.AddPointSet(Points,  Diameter = 4, Color = color)
            R.Name = "PointSet"
            R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.PointSetGotHit)
            Canvas.AddText("LEFT_DOWN", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Size = FontSize, Position = "tl")

            x = 20
            y += dy
            T = Canvas.AddText("Hit-able Text", (x, y), Size = 15, Color = "Red", Position = 'tl')
            T.Name = "Hit-able Text"
            T.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHitLeft)
            Canvas.AddText("Left Down", (x, y), Size = FontSize, Position = "bl")

            x += dx
            T = Canvas.AddScaledText("Scaled Text", (x, y), Size = 1./2*h, Color = "Pink", Position = 'bl')
            Canvas.AddPointSet( (x, y), Diameter = 3)
            T.Name = "Scaled Text"
            T.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHitLeft)
            Canvas.AddText("Left Down", (x, y), Size = FontSize, Position = "tl")

            x += dx
            color = "Cyan"
            Point = (x + w/2, y)
            #Points = N.array(( (x, y), (x, y+2.*h/3), (x+w, y+h), (x+w, y+h/2.), (x + 2.*w/3, y+h/2.), (x + 2.*w/3,y) ), N.float_)
            R = Canvas.AddSquarePoint(Point,  Size = 8, Color = color)
            R.Name = "SquarePoint"
            R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHit)
            Canvas.AddText("LEFT_DOWN", (x, y), Size = FontSize, Position = "bl")
            Canvas.AddText(R.Name, (x, y), Size = FontSize, Position = "tl")


            self.Canvas.ZoomToBB()

        def TestHitTestForeground(self,event=None):
            wx.GetApp().Yield(True)

            self.UnBindAllMouseEvents()
            Canvas = self.Canvas

            Canvas.InitAll()

            #Add a Hitable rectangle
            w, h = 60, 20

            dx = 80
            dy = 40
            x,y = 20, 20

            color = "Red"
            R = Canvas.AddRectangle((x, y), (w, h), LineWidth = 2, FillColor = color, InForeground = False)
            R.Name = color + "Rectangle"
            R.HitFill = True
            R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectGotHit)
            Canvas.AddText("Left Click Fill", (x, y), Position = "bl")
            Canvas.AddText(R.Name, (x, y+h), Position = "tl")

            ## A set of Rectangles that move together

            ## NOTE: In a real app, it might be better to create a new
            ## custom FloatCanvas DrawObject

            self.MovingRects = []
            WH = (w/2, h/2)
            x += dx
            color = "LightBlue"
            R = Canvas.AddRectangle((x, y), WH, LineWidth = 2, FillColor = color, InForeground = True)
            R.HitFill = True
            R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectMoveLeft)
            L = Canvas.AddText("Left", (x + w/4, y + h/4), Position = "cc", InForeground = True)
            self.MovingRects.extend( (R,L) )

            x += w/2
            R = Canvas.AddRectangle((x, y), WH, LineWidth = 2, FillColor = color, InForeground = True)
            R.HitFill = True
            R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectMoveRight)
            L = Canvas.AddText("Right", (x + w/4, y + h/4), Position = "cc", InForeground = True)
            self.MovingRects.extend( (R,L) )

            x -= w/2
            y += h/2
            R = Canvas.AddRectangle((x, y), WH, LineWidth = 2, FillColor = color, InForeground = True)
            R.HitFill = True
            R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectMoveUp)
            L = Canvas.AddText("Up", (x + w/4, y + h/4), Position = "cc", InForeground = True)
            self.MovingRects.extend( (R,L) )


            x += w/2
            R = Canvas.AddRectangle((x, y), WH, LineWidth = 2, FillColor = color, InForeground = True)
            R.HitFill = True
            R.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.RectMoveDown)
            L = Canvas.AddText("Down", (x + w/4, y + h/4), Position = "cc", InForeground = True)
            self.MovingRects.extend( (R,L) )

            self.Canvas.ZoomToBB()

        def RectMoveLeft(self,Object):
            self.MoveRects("left")

        def RectMoveRight(self,Object):
            self.MoveRects("right")

        def RectMoveUp(self,Object):
            self.MoveRects("up")

        def RectMoveDown(self,Object):
            self.MoveRects("down")

        def MoveRects(self, Dir):
            for Object in self.MovingRects:
                X,Y = Object.XY
                if Dir == "left": X -= 10
                elif Dir == "right": X += 10
                elif Dir == "up": Y += 10
                elif Dir == "down": Y -= 10
                Object.SetPoint((X,Y))
            self.Canvas.Draw()

        def PointSetGotHit(self, Object):
            self.Log(Object.Name + "Got Hit\n")

        def RectGotHit(self, Object):
            self.Log(Object.Name + "Got Hit\n")

        def RectGotHitRight(self, Object):
            self.Log(Object.Name + "Got Hit With Right\n")

        def RectGotHitLeft(self, Object):
            self.Log(Object.Name + "Got Hit with Left\n")

        def RectMouseOver(self, Object):
            self.Log("Mouse entered:" +  Object.Name)

        def RectMouseLeave(self, Object):
            self.Log("Mouse left " +  Object.Name)


        def TestText(self, event= None):
            wx.GetApp().Yield(True)

            self.BindAllMouseEvents()