git.saurik.com Git - wxWidgets.git/blame_incremental - wxPython/demo/wxScrolledWindow.py

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Commit	Line	Data
	1
	2	from wxPython.wx import *
	3
	4	import images
	5
	6	#---------------------------------------------------------------------------
	7
	8	class MyCanvas(wxScrolledWindow):
	9	def __init__(self, parent, id = -1, size = wxDefaultSize):
	10	wxScrolledWindow.__init__(self, parent, id, wxPoint(0, 0), size, wxSUNKEN_BORDER)
	11
	12	self.lines = []
	13	self.maxWidth = 1000
	14	self.maxHeight = 1000
	15	self.count = 0
	16
	17	self.SetBackgroundColour("WHITE")
	18	EVT_LEFT_DOWN(self, self.OnLeftButtonEvent)
	19	EVT_LEFT_UP(self, self.OnLeftButtonEvent)
	20	EVT_MOTION(self, self.OnLeftButtonEvent)
	21	EVT_PAINT(self, self.OnPaint)
	22
	23	self.SetCursor(wxStockCursor(wxCURSOR_PENCIL))
	24	bmp = images.getTest2Bitmap()
	25	mask = wxMaskColour(bmp, wxBLUE)
	26	bmp.SetMask(mask)
	27	self.bmp = bmp
	28
	29	self.SetScrollbars(20, 20, self.maxWidth/20, self.maxHeight/20)
	30
	31
	32	def getWidth(self):
	33	return self.maxWidth
	34
	35	def getHeight(self):
	36	return self.maxHeight
	37
	38
	39	def OnPaint(self, event):
	40	#self.count += 1
	41	#print self.count, "begin paint...",
	42	dc = wxPaintDC(self)
	43	self.PrepareDC(dc)
	44	self.DoDrawing(dc)
	45	#print "end paint"
	46
	47
	48	def DoDrawing(self, dc):
	49	dc.BeginDrawing()
	50	dc.SetPen(wxPen('RED'))
	51	dc.DrawRectangle(5, 5, 50, 50)
	52
	53	dc.SetBrush(wxLIGHT_GREY_BRUSH)
	54	dc.SetPen(wxPen('BLUE', 4))
	55	dc.DrawRectangle(15, 15, 50, 50)
	56
	57	dc.SetFont(wxFont(14, wxSWISS, wxNORMAL, wxNORMAL))
	58	dc.SetTextForeground(wxColour(0xFF, 0x20, 0xFF))
	59	te = dc.GetTextExtent("Hello World")
	60	dc.DrawText("Hello World", 60, 65)
	61
	62	dc.SetPen(wxPen('VIOLET', 4))
	63	dc.DrawLine(5, 65+te[1], 60+te[0], 65+te[1])
	64
	65	lst = [(100,110), (150,110), (150,160), (100,160)]
	66	dc.DrawLines(lst, -60)
	67	dc.SetPen(wxGREY_PEN)
	68	dc.DrawPolygon(lst, 75)
	69	dc.SetPen(wxGREEN_PEN)
	70	dc.DrawSpline(lst+[(100,100)])
	71
	72	dc.DrawBitmap(self.bmp, 200, 20, true)
	73	dc.SetTextForeground(wxColour(0, 0xFF, 0x80))
	74	dc.DrawText("a bitmap", 200, 85)
	75
	76	font = wxFont(20, wxSWISS, wxNORMAL, wxNORMAL)
	77	dc.SetFont(font)
	78	dc.SetTextForeground(wxBLACK)
	79	for a in range(0, 360, 45):
	80	dc.DrawRotatedText("Rotated text...", 300, 300, a)
	81
	82	dc.SetPen(wxTRANSPARENT_PEN)
	83	dc.SetBrush(wxBLUE_BRUSH)
	84	dc.DrawRectangle(50,500,50,50)
	85	dc.DrawRectangle(100,500,50,50)
	86
	87	dc.SetPen(wxPen('RED'))
	88	dc.DrawEllipticArc(200, 500, 50, 75, 0, 90)
	89
	90	y = 20
	91	for style in [wxDOT, wxLONG_DASH, wxSHORT_DASH, wxDOT_DASH, wxUSER_DASH]:
	92	pen = wxPen("DARK ORCHID", 1, style)
	93	if style == wxUSER_DASH:
	94	pen.SetDashes([1, 2, 3, 4, 5, 6, 7, 8])
	95	pen.SetColour("RED")
	96	dc.SetPen(pen)
	97	dc.DrawLine(300, y, 400, y)
	98	y = y + 10
	99
	100	dc.SetBrush(wxTRANSPARENT_BRUSH)
	101	dc.SetPen(wxPen(wxColour(0xFF, 0x20, 0xFF), 1, wxSOLID))
	102	dc.DrawRectangle(450, 50, 100, 100)
	103	old_pen = dc.GetPen()
	104	new_pen = wxPen("BLACK", 5)
	105	dc.SetPen(new_pen)
	106	dc.DrawRectangle(470, 70, 60, 60)
	107	dc.SetPen(old_pen)
	108	dc.DrawRectangle(490, 90, 20, 20)
	109
	110
	111	self.DrawSavedLines(dc)
	112	dc.EndDrawing()
	113
	114
	115	def DrawSavedLines(self, dc):
	116	dc.SetPen(wxPen('MEDIUM FOREST GREEN', 4))
	117	for line in self.lines:
	118	for coords in line:
	119	apply(dc.DrawLine, coords)
	120
	121
	122	def SetXY(self, event):
	123	self.x, self.y = self.ConvertEventCoords(event)
	124
	125	def ConvertEventCoords(self, event):
	126	xView, yView = self.GetViewStart()
	127	xDelta, yDelta = self.GetScrollPixelsPerUnit()
	128	return (event.GetX() + (xView * xDelta),
	129	event.GetY() + (yView * yDelta))
	130
	131	def OnLeftButtonEvent(self, event):
	132	if event.LeftDown():
	133	self.SetXY(event)
	134	self.curLine = []
	135	self.CaptureMouse()
	136
	137	elif event.Dragging():
	138	dc = wxClientDC(self)
	139	self.PrepareDC(dc)
	140	dc.BeginDrawing()
	141	dc.SetPen(wxPen('MEDIUM FOREST GREEN', 4))
	142	coords = (self.x, self.y) + self.ConvertEventCoords(event)
	143	self.curLine.append(coords)
	144	apply(dc.DrawLine, coords)
	145	self.SetXY(event)
	146	dc.EndDrawing()
	147
	148	elif event.LeftUp():
	149	self.lines.append(self.curLine)
	150	self.curLine = []
	151	self.ReleaseMouse()
	152
	153
	154	## This is an example of what to do for the EVT_MOUSEWHEEL event,
	155	## but since wxScrolledWindow does this already it's not
	156	## necessary to do it ourselves.
	157
	158	## wheelScroll = 0
	159	## def OnWheel(self, evt):
	160	## delta = evt.GetWheelDelta()
	161	## rot = evt.GetWheelRotation()
	162	## linesPer = evt.GetLinesPerAction()
	163	## ws = self.wheelScroll
	164	## ws = ws + rot
	165	## lines = ws / delta
	166	## ws = ws - lines * delta
	167	## self.wheelScroll = ws
	168	## if lines != 0:
	169	## lines = lines * linesPer
	170	## vsx, vsy = self.GetViewStart()
	171	## scrollTo = vsy - lines
	172	## self.Scroll(-1, scrollTo)
	173
	174	#---------------------------------------------------------------------------
	175
	176	def runTest(frame, nb, log):
	177	win = MyCanvas(nb)
	178	return win
	179
	180	#---------------------------------------------------------------------------
	181
	182
	183
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	190
	191
	192
	193
	194	overview = """\
	195	"""