mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-27 05:32:41 -06:00
79 lines
2.5 KiB
Python
79 lines
2.5 KiB
Python
#-----------------------------------------------------------------------------
|
|
# Name: dragscroller.py
|
|
# Purpose: Scrolls a wx.ScrollWindow by dragging
|
|
#
|
|
# Author: Riaan Booysen
|
|
#
|
|
# Created: 2006/09/05
|
|
# Copyright: (c) 2006
|
|
# Licence: wxPython
|
|
#-----------------------------------------------------------------------------
|
|
|
|
import wx
|
|
|
|
class DragScroller:
|
|
""" Scrolls a wx.ScrollWindow in the direction and speed of a mouse drag.
|
|
|
|
Call Start with the position of the drag start.
|
|
Call Stop on the drag release. """
|
|
|
|
def __init__(self, scrollwin=None, rate=30, sensitivity=0.75):
|
|
self.scrollwin = scrollwin
|
|
self.rate = rate
|
|
self.sensitivity = sensitivity
|
|
|
|
self.pos = None
|
|
self.timer = None
|
|
|
|
def GetScrollWindow(self):
|
|
return self.scrollwin
|
|
def SetScrollWindow(self, scrollwin):
|
|
self.scrollwin = scrollwin
|
|
|
|
def GetUpdateRate(self):
|
|
return self.rate
|
|
def SetUpdateRate(self, rate):
|
|
self.rate = rate
|
|
|
|
def GetSensitivity(self):
|
|
return self.sensitivity
|
|
def SetSensitivity(self, sensitivity):
|
|
self.sensitivity = sensitivity
|
|
|
|
def Start(self, pos):
|
|
""" Start a drag scroll operation """
|
|
if not self.scrollwin:
|
|
raise Exception('No ScrollWindow defined')
|
|
|
|
self.pos = pos
|
|
self.scrollwin.SetCursor(wx.Cursor(wx.CURSOR_SIZING))
|
|
if not self.scrollwin.HasCapture():
|
|
self.scrollwin.CaptureMouse()
|
|
|
|
self.timer = wx.Timer(self.scrollwin)
|
|
self.scrollwin.Bind(wx.EVT_TIMER, self.OnTimerDoScroll, id=self.timer.GetId())
|
|
self.timer.Start(self.rate)
|
|
|
|
def Stop(self):
|
|
""" Stops a drag scroll operation """
|
|
if self.timer and self.scrollwin:
|
|
self.timer.Stop()
|
|
self.scrollwin.Disconnect(self.timer.GetId())
|
|
self.timer.Destroy()
|
|
self.timer = None
|
|
|
|
self.scrollwin.SetCursor(wx.STANDARD_CURSOR)
|
|
if self.scrollwin.HasCapture():
|
|
self.scrollwin.ReleaseMouse()
|
|
|
|
def OnTimerDoScroll(self, event):
|
|
if self.pos is None or not self.timer or not self.scrollwin:
|
|
return
|
|
|
|
new = self.scrollwin.ScreenToClient(wx.GetMousePosition())
|
|
dx = int((new.x-self.pos.x)*self.sensitivity)
|
|
dy = int((new.y-self.pos.y)*self.sensitivity)
|
|
spx = self.scrollwin.GetScrollPos(wx.HORIZONTAL)
|
|
spy = self.scrollwin.GetScrollPos(wx.VERTICAL)
|
|
|
|
self.scrollwin.Scroll(spx+dx, spy+dy)
|