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#!/usr/bin/env python
import wx
## import the installed version
from wx.lib.floatcanvas import NavCanvas, FloatCanvas
## import a local version
#import sys
#sys.path.append("../")
#from floatcanvas import NavCanvas, FloatCanvas
class DrawFrame(wx.Frame):
"""
A frame used for the FloatCanvas Demo
"""
def __init__(self, *args, **kwargs):
wx.Frame.__init__(self, *args, **kwargs)
self.CreateStatusBar()
# Add the Canvas
Canvas = NavCanvas.NavCanvas(self,-1,
size = (500,500),
ProjectionFun = None,
Debug = 0,
BackgroundColor = "White",
).Canvas
# Canvas = FloatCanvas.FloatCanvas(self,-1,
# size = (500,500),
# ProjectionFun = None,
# Debug = 0,
# BackgroundColor = "White",
# )
self.Canvas = Canvas
self.Canvas.Bind(FloatCanvas.EVT_MOTION, self.OnMove )
self.Canvas.Bind(FloatCanvas.EVT_LEFT_DOWN, self.OnLeft)
# Some default sizes:
self.LineHeight = 1
self.TextWidth = 8
self.SpaceWidth = 1
self.Labels = ["SW Tasks", "Set RX Rf"] + ["A Row Label"]*16
self.NumRows = len(self.Labels)
self.BuildChartBackground()
self.AddLabels()
self.Show()
Canvas.MinScale=28
Canvas.MaxScale=28
Canvas.ZoomToBB()
def BuildChartBackground(self):
Canvas = self.Canvas
top = 0
bottom = -(self.LineHeight * self.NumRows)
width = self.SpaceWidth * 16 + self.TextWidth
# put in the rows:
for i in range(1, self.NumRows+1, 2):
Canvas.AddRectangle((0-self.TextWidth, -i*self.LineHeight),
(width, self.LineHeight),
LineColor = None,
FillColor = "LightGrey",
FillStyle = "Solid",)
# put a dashed line in every 1 unit:
for i in range(16):
Canvas.AddLine(((i*self.SpaceWidth,bottom),(i*self.SpaceWidth,top)),
LineColor = "Black",
LineStyle = "Dot",
# or "Dot", "ShortDash", "LongDash","ShortDash", "DotDash"
LineWidth = 1,)
def AddLabels(self):
Canvas = self.Canvas
for i, label in enumerate(self.Labels):
Canvas.AddScaledText(label,
( -self.TextWidth, -(i+0.2)*self.LineHeight ),
Size = 0.6 * self.LineHeight,
Color = "Black",
BackgroundColor = None,
Family = wx.MODERN,
Style = wx.NORMAL,
Weight = wx.NORMAL,
Underlined = False,
Position = 'tl',
)
def OnMove(self, event):
"""
Updates the status bar with the world coordinates
"""
self.SetStatusText("%.2f, %.2f"%tuple(event.Coords))
def OnLeft(self, event):
"""
Prints various info about the state of the canvas to stdout
"""
print("Scale is:", self.Canvas.Scale)
app = wx.App(False)
F = DrawFrame(None, title="FloatCanvas Demo App", size=(700,700) )
app.MainLoop()
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