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# This file is part of the Printrun suite.
#
# Printrun is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Printrun is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Printrun. If not, see <http://www.gnu.org/licenses/>.
import wx, os, math
from bufferedcanvas import *
def imagefile(filename):
if os.path.exists(os.path.join(os.path.dirname(__file__), "images", filename)):
return os.path.join(os.path.dirname(__file__), "images", filename)
else:
return os.path.join(os.path.split(os.path.split(__file__)[0])[0], "images", filename)
def sign(n):
if n < 0: return -1
elif n > 0: return 1
else: return 0
class ZButtons(BufferedCanvas):
button_ydistances = [7, 30, 55, 83] # ,112
center = (30, 118)
label_overlay_positions = {
0: (1, 18, 11),
1: (1, 41, 13),
2: (1, 67, 15),
3: None
}
def __init__(self, parent, moveCallback=None, ID=-1):
self.bg_bmp = wx.Image(imagefile("control_z.png"),wx.BITMAP_TYPE_PNG).ConvertToBitmap()
self.range = None
self.direction = None
self.orderOfMagnitudeIdx = 0 # 0 means '1', 1 means '10', 2 means '100', etc.
self.moveCallback = moveCallback
self.enabled = False
BufferedCanvas.__init__(self, parent, ID)
self.SetSize(wx.Size(59, 244))
# Set up mouse and keyboard event capture
self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
self.Bind(wx.EVT_LEFT_DCLICK, self.OnLeftDown)
self.Bind(wx.EVT_MOTION, self.OnMotion)
self.Bind(wx.EVT_LEAVE_WINDOW, self.OnLeaveWindow)
def disable(self):
self.enabled = False
self.update()
def enable(self):
self.enabled = True
self.update()
def lookupRange(self, ydist):
idx = -1
for d in ZButtons.button_ydistances:
if ydist < d:
return idx
idx += 1
return None
def highlight(self, gc, rng, dir):
assert(rng >= -1 and rng <= 3)
assert(dir >= -1 and dir <= 1)
fudge = 11
x = 0 + fudge
w = 59 - fudge*2
if rng >= 0:
k = 1 if dir > 0 else 0
y = ZButtons.center[1] - (dir * ZButtons.button_ydistances[rng+k])
h = ZButtons.button_ydistances[rng+1] - ZButtons.button_ydistances[rng]
gc.DrawRoundedRectangle(x, y, w, h, 4)
# gc.DrawRectangle(x, y, w, h)
# self.drawPartialPie(dc, center, r1-inner_ring_radius, r2-inner_ring_radius, a1+fudge, a2-fudge)
def getRangeDir(self, pos):
ydelta = ZButtons.center[1] - pos[1]
return (self.lookupRange(abs(ydelta)), sign(ydelta))
def draw(self, dc, w, h):
dc.Clear()
gc = wx.GraphicsContext.Create(dc)
if self.bg_bmp:
w, h = (self.bg_bmp.GetWidth(), self.bg_bmp.GetHeight())
gc.DrawBitmap(self.bg_bmp, 0, 0, w, h)
if self.enabled:
# Draw label overlays
gc.SetPen(wx.Pen(wx.Colour(255,255,255,128), 1))
gc.SetBrush(wx.Brush(wx.Colour(255,255,255,128+64)))
for idx, kpos in ZButtons.label_overlay_positions.items():
if kpos and idx != self.range:
r = kpos[2]
gc.DrawEllipse(ZButtons.center[0]-kpos[0]-r, ZButtons.center[1]-kpos[1]-r, r*2, r*2)
# Top 'layer' is the mouse-over highlights
gc.SetPen(wx.Pen(wx.Colour(100,100,100,172), 4))
gc.SetBrush(wx.Brush(wx.Colour(0,0,0,128)))
if self.range != None and self.direction != None:
self.highlight(gc, self.range, self.direction)
else:
gc.SetPen(wx.Pen(wx.Colour(255,255,255,0), 4))
gc.SetBrush(wx.Brush(wx.Colour(255,255,255,128)))
gc.DrawRectangle(0, 0, w, h)
## ------ ##
## Events ##
## ------ ##
def OnMotion(self, event):
if not self.enabled:
return
oldr, oldd = self.range, self.direction
mpos = event.GetPosition()
self.range, self.direction = self.getRangeDir(mpos)
if oldr != self.range or oldd != self.direction:
self.update()
def OnLeftDown(self, event):
if not self.enabled:
return
mpos = event.GetPosition()
r, d = self.getRangeDir(mpos)
if r >= 0:
value = math.pow(10, self.orderOfMagnitudeIdx) * math.pow(10, r - 1) * d
if self.moveCallback:
self.moveCallback(value)
def OnLeaveWindow(self, evt):
self.range = None
self.direction = None
self.update()
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