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#!/usr/bin/env python
"""
This is a very small app using the FloatCanvas
It tests the Spline object, including how you can put points together to
create an object with curves and square corners.
"""
import wx
#### import local version:
#import sys
#sys.path.append("../")
#from floatcanvas import NavCanvas
#from floatcanvas import FloatCanvas as FC
from wx.lib.floatcanvas import FloatCanvas as FC
from wx.lib.floatcanvas import NavCanvas
class Spline(FC.Line):
def __init__(self, *args, **kwargs):
FC.Line.__init__(self, *args, **kwargs)
def _Draw(self, dc , WorldToPixel, ScaleWorldToPixel, HTdc=None):
Points = WorldToPixel(self.Points)
dc.SetPen(self.Pen)
dc.DrawSpline(Points)
if HTdc and self.HitAble:
HTdc.SetPen(self.HitPen)
HTdc.DrawSpline(Points)
class DrawFrame(wx.Frame):
"""
A frame used for the FloatCanvas
"""
def __init__(self, *args, **kwargs):
wx.Frame.__init__(self, *args, **kwargs)
## Set up the MenuBar
MenuBar = wx.MenuBar()
file_menu = wx.Menu()
item = file_menu.Append(-1, "&Close","Close this frame")
self.Bind(wx.EVT_MENU, self.OnQuit, item)
MenuBar.Append(file_menu, "&File")
help_menu = wx.Menu()
item = help_menu.Append(-1, "&About",
"More information About this program")
self.Bind(wx.EVT_MENU, self.OnAbout, item)
MenuBar.Append(help_menu, "&Help")
self.SetMenuBar(MenuBar)
self.CreateStatusBar()
# Add the Canvas
self.Canvas = NavCanvas.NavCanvas(self,
BackgroundColor = "White",
).Canvas
self.Canvas.Bind(FC.EVT_MOTION, self.OnMove)
self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
self.DrawTest()
self.Show()
self.Canvas.ZoomToBB()
def OnAbout(self, event):
print("OnAbout called")
dlg = wx.MessageDialog(self, "This is a small program to demonstrate\n"
"the use of the FloatCanvas\n",
"About Me", wx.OK | wx.ICON_INFORMATION)
dlg.ShowModal()
dlg.Destroy()
def OnMove(self, event):
"""
Updates the status bar with the world coordinates
"""
self.SetStatusText("%.2f, %.2f"%tuple(event.Coords))
def OnQuit(self,event):
self.Close(True)
def OnCloseWindow(self, event):
self.Destroy()
def DrawTest(self,event=None):
wx.GetApp().Yield()
Canvas = self.Canvas
Points = [(0, 0),
(200,0),
(200,0),
(200,0),
(200,15),
(185,15),
(119,15),
(104,15),
(104,30),
(104,265),
(104,280),
(119,280),
(185,280),
(200,280),
(200,295),
(200,295),
(200,295),
(0, 295),
(0, 295),
(0, 295),
(0, 280),
(15, 280),
(81, 280),
(96, 280),
(96, 265),
(96, 30),
(96, 15),
(81, 15),
(15, 15),
(0, 15),
(0, 0),
]
Canvas.ClearAll()
MyLine = FC.Spline(Points,
LineWidth = 3,
LineColor = "Blue")
Canvas.AddObject(MyLine)
Canvas.AddPointSet(Points,
Color = "Red",
Diameter = 4,
)
## A regular old spline:
Points = [(-30, 260),
(-10, 130),
(70, 185),
(160,60),
]
Canvas.AddSpline(Points,
LineWidth = 5,
LineColor = "Purple")
class DemoApp(wx.App):
def __init__(self, *args, **kwargs):
wx.App.__init__(self, *args, **kwargs)
def OnInit(self):
frame = DrawFrame(None, title="FloatCanvas Spline Demo", size = (700,700))
self.SetTopWindow(frame)
return True
app = DemoApp(False)# put in True if you want output to go to it's own window.
app.MainLoop()
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