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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 XYButtons(BufferedCanvas):
keypad_positions = {
0: (105, 102),
1: (86, 83),
2: (68, 65),
3: (53, 50)
}
corner_size = (49, 49)
corner_inset = (8, 6)
label_overlay_positions = {
0: (142, 105, 11),
1: (160, 85, 13),
2: (179, 65, 15),
3: (201, 42, 16)
}
concentric_circle_radii = [11, 45, 69, 94, 115]
center = (124, 121)
spacer = 7
def __init__(self, parent, moveCallback=None, cornerCallback=None, ID=-1):
self.bg_bmp = wx.Image(imagefile("control_xy.png"),wx.BITMAP_TYPE_PNG).ConvertToBitmap()
self.keypad_bmp = wx.Image(imagefile("arrow_keys.png"),wx.BITMAP_TYPE_PNG).ConvertToBitmap()
self.keypad_idx = -1
self.quadrant = None
self.concentric = None
self.corner = None
self.moveCallback = moveCallback
self.cornerCallback = cornerCallback
self.enabled = False
BufferedCanvas.__init__(self, parent, ID)
self.SetSize(self.bg_bmp.GetSize())
# 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)
self.Bind(wx.EVT_KEY_UP, self.OnKey)
wx.GetTopLevelParent(self).Bind(wx.EVT_CHAR_HOOK, self.OnTopLevelKey)
def disable(self):
self.enabled = False
self.update()
def enable(self):
self.enabled = True
self.update()
def distanceToLine(self, pos, x1, y1, x2, y2):
xlen = x2 - x1
ylen = y2 - y1
pxlen = x1 - pos.x
pylen = y1 - pos.y
return abs(xlen*pylen-ylen*pxlen)/math.sqrt(xlen**2+ylen**2)
def distanceToPoint(self, x1, y1, x2, y2):
return math.sqrt((x1-x2)**2 + (y1-y2)**2)
def cycleKeypadIndex(self):
idx = self.keypad_idx + 1
if idx > 2: idx = 0
return idx
def setKeypadIndex(self, idx):
self.keypad_idx = idx
self.update()
def getMovement(self):
xdir = [1, 0, -1, 0][self.quadrant]
ydir = [0, 1, 0, -1][self.quadrant]
magnitude = math.pow(10, self.concentric-1)
return (magnitude * xdir, magnitude * ydir)
def lookupConcentric(self, radius):
idx = 0
for r in XYButtons.concentric_circle_radii[1:]:
if radius < r:
return idx
idx += 1
return len(XYButtons.concentric_circle_radii)
def getQuadrantConcentricFromPosition(self, pos):
rel_x = pos[0] - XYButtons.center[0]
rel_y = pos[1] - XYButtons.center[1]
radius = math.sqrt(rel_x**2 + rel_y**2)
if rel_x > rel_y and rel_x > -rel_y:
quadrant = 0 # Right
elif rel_x <= rel_y and rel_x > -rel_y:
quadrant = 3 # Down
elif rel_x > rel_y and rel_x < -rel_y:
quadrant = 1 # Up
else:
quadrant = 2 # Left
idx = self.lookupConcentric(radius)
return (quadrant, idx)
def mouseOverKeypad(self, mpos):
for idx, kpos in XYButtons.keypad_positions.items():
radius = self.distanceToPoint(mpos[0], mpos[1], kpos[0], kpos[1])
if radius < 9:
return idx
return None
def drawPartialPie(self, gc, center, r1, r2, angle1, angle2):
p1 = wx.Point(center.x + r1*math.cos(angle1), center.y + r1*math.sin(angle1))
path = gc.CreatePath()
path.MoveToPoint(p1.x, p1.y)
path.AddArc(center.x, center.y, r1, angle1, angle2, True)
path.AddArc(center.x, center.y, r2, angle2, angle1, False)
path.AddLineToPoint(p1.x, p1.y)
gc.DrawPath(path)
def highlightQuadrant(self, gc, quadrant, concentric):
assert(quadrant >= 0 and quadrant <= 3)
assert(concentric >= 0 and concentric <= 3)
inner_ring_radius = XYButtons.concentric_circle_radii[0]
# fudge = math.pi*0.002
fudge = -0.02
center = wx.Point(XYButtons.center[0], XYButtons.center[1])
if quadrant == 0:
a1, a2 = (-math.pi*0.25, math.pi*0.25)
center.x += inner_ring_radius
elif quadrant == 1:
a1, a2 = (math.pi*1.25, math.pi*1.75)
center.y -= inner_ring_radius
elif quadrant == 2:
a1, a2 = (math.pi*0.75, math.pi*1.25)
center.x -= inner_ring_radius
elif quadrant == 3:
a1, a2 = (math.pi*0.25, math.pi*0.75)
center.y += inner_ring_radius
r1 = XYButtons.concentric_circle_radii[concentric]
r2 = XYButtons.concentric_circle_radii[concentric+1]
self.drawPartialPie(gc, center, r1-inner_ring_radius, r2-inner_ring_radius, a1+fudge, a2-fudge)
def drawCorner(self, gc, x, y, angle=0.0):
w, h = XYButtons.corner_size
gc.PushState()
gc.Translate(x, y)
gc.Rotate(angle)
path = gc.CreatePath()
path.MoveToPoint(-w/2, -h/2)
path.AddLineToPoint(w/2, -h/2)
path.AddLineToPoint(w/2, -h/2+h/3)
path.AddLineToPoint(-w/2+w/3, h/2)
path.AddLineToPoint(-w/2, h/2)
path.AddLineToPoint(-w/2, -h/2)
gc.DrawPath(path)
gc.PopState()
def highlightCorner(self, gc, corner=0):
w, h = XYButtons.corner_size
cx, cy = XYButtons.center
ww, wh = self.GetSizeTuple()
inset = 10
if corner == 0:
x, y = (cx - ww/2 + inset, cy - wh/2 + inset)
self.drawCorner(gc, x+w/2, y+h/2, 0)
elif corner == 1:
x, y = (cx + ww/2 - inset, cy - wh/2 + inset)
self.drawCorner(gc, x-w/2, y+h/2, math.pi/2)
elif corner == 2:
x, y = (cx + ww/2 - inset, cy + wh/2 - inset)
self.drawCorner(gc, x-w/2, y-h/2, math.pi)
elif corner == 3:
x, y = (cx - ww/2 + inset, cy + wh/2 - inset)
self.drawCorner(gc, x+w/2, y-h/2, math.pi*3/2)
def draw(self, dc, w, h):
dc.Clear()
gc = wx.GraphicsContext.Create(dc)
center = wx.Point(XYButtons.center[0], XYButtons.center[1])
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:
# Brush and pen for grey overlay when mouse hovers over
gc.SetPen(wx.Pen(wx.Colour(100,100,100,172), 4))
gc.SetBrush(wx.Brush(wx.Colour(0,0,0,128)))
if self.concentric != None:
if self.concentric < len(XYButtons.concentric_circle_radii):
if self.quadrant != None:
self.highlightQuadrant(gc, self.quadrant, self.concentric)
elif self.corner != None:
self.highlightCorner(gc, self.corner)
if self.keypad_idx >= 0:
padw, padh = (self.keypad_bmp.GetWidth(), self.keypad_bmp.GetHeight())
pos = XYButtons.keypad_positions[self.keypad_idx]
pos = (pos[0] - padw/2 - 3, pos[1] - padh/2 - 3)
gc.DrawBitmap(self.keypad_bmp, pos[0], pos[1], padw, padh)
# 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 XYButtons.label_overlay_positions.items():
if idx != self.concentric:
r = kpos[2]
gc.DrawEllipse(kpos[0]-r, kpos[1]-r, r*2, r*2)
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)
# Used to check exact position of keypad dots, should we ever resize the bg image
# for idx, kpos in XYButtons.label_overlay_positions.items():
# dc.DrawCircle(kpos[0], kpos[1], kpos[2])
## ------ ##
## Events ##
## ------ ##
def OnTopLevelKey(self, evt):
# Let user press escape on any control, and return focus here
if evt.GetKeyCode() == wx.WXK_ESCAPE:
self.SetFocus()
evt.Skip()
def OnKey(self, evt):
if not self.enabled:
return
if self.keypad_idx >= 0:
if evt.GetKeyCode() == wx.WXK_TAB:
self.setKeypadIndex(self.cycleKeypadIndex())
elif evt.GetKeyCode() == wx.WXK_UP:
self.quadrant = 1
elif evt.GetKeyCode() == wx.WXK_DOWN:
self.quadrant = 3
elif evt.GetKeyCode() == wx.WXK_LEFT:
self.quadrant = 2
elif evt.GetKeyCode() == wx.WXK_RIGHT:
self.quadrant = 0
elif evt.GetKeyCode() == wx.WXK_SPACE:
pass
else:
evt.Skip()
return
if self.moveCallback:
self.concentric = self.keypad_idx
x, y = self.getMovement()
self.moveCallback(x, y)
def OnMotion(self, event):
if not self.enabled:
return
oldcorner = self.corner
oldq, oldc = self.quadrant, self.concentric
mpos = event.GetPosition()
idx = self.mouseOverKeypad(mpos)
self.quadrant = None
self.concentric = None
if idx == None:
center = wx.Point(XYButtons.center[0], XYButtons.center[1])
riseDist = self.distanceToLine(mpos, center.x-1, center.y-1, center.x+1, center.y+1)
fallDist = self.distanceToLine(mpos, center.x-1, center.y+1, center.x+1, center.y-1)
self.quadrant, self.concentric = self.getQuadrantConcentricFromPosition(mpos)
# If mouse hovers in space between quadrants, don't commit to a quadrant
if riseDist <= XYButtons.spacer or fallDist <= XYButtons.spacer:
self.quadrant = None
cx, cy = XYButtons.center
if mpos.x < cx and mpos.y < cy:
self.corner = 0
if mpos.x >= cx and mpos.y < cy:
self.corner = 1
if mpos.x >= cx and mpos.y >= cy:
self.corner = 2
if mpos.x < cx and mpos.y >= cy:
self.corner = 3
if oldq != self.quadrant or oldc != self.concentric or oldcorner != self.corner:
self.update()
def OnLeftDown(self, event):
if not self.enabled:
return
# Take focus when clicked so that arrow keys can control movement
self.SetFocus()
mpos = event.GetPosition()
idx = self.mouseOverKeypad(mpos)
if idx == None:
self.quadrant, self.concentric = self.getQuadrantConcentricFromPosition(mpos)
if self.concentric != None:
if self.concentric < len(XYButtons.concentric_circle_radii):
if self.quadrant != None:
x, y = self.getMovement()
if self.moveCallback:
self.moveCallback(x, y)
elif self.corner != None:
if self.cornerCallback:
self.cornerCallback(self.corner)
else:
if self.keypad_idx == idx:
self.setKeypadIndex(-1)
else:
self.setKeypadIndex(idx)
def OnLeaveWindow(self, evt):
self.quadrant = None
self.concentric = None
self.update()
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