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# Define drawing operations for GL stdwin
import gl
import fm
from GL import LO_XOR, LO_SRC
from glstdwin import MASK
class DrawingObject:
#
def _init(self, win):
self.fg = win._fg
self.bg = win._bg
self.font = win._font
self.size = win._size
self.width, self.height = win._area[1]
gl.winset(win._gid)
gl.color(self.fg)
return self
#
def setfont(self, fontname):
self.font = fm.findfont(fontname).scalefont(self.size)
#
def setsize(self, size):
ratio = float(size) / float(self.size)
self.size = size
self.font = self.font.scalefont(ratio)
#
def setfgcolor(self, color):
self.fg = color
gl.color(self.fg)
#
def setbgcolor(self, color):
self.bg = color
#
def cliprect(self, area):
#print 'cliprect', area
(left, top), (right, bottom) = area
gl.scrmask(left, right, self.height-bottom, self.height-top)
#
def noclip(self):
#print 'noclip()'
gl.scrmask(0, self.width, 0, self.height)
#
def paint(self, ((left, top), (right, bottom))):
gl.rectf(left, top, right, bottom)
#
def box(self, ((left, top), (right, bottom))):
#print 'box', ((left, top), (right, bottom))
gl.rect(left, top, right, bottom)
#
def circle(self, (h, v), radius):
gl.circ(h, v, radius)
#
def elarc(self, center, (rh, rv), (a1, a2)):
pass # XXX
#
def erase(self, ((left, top), (right, bottom))):
#print 'erase', ((left, top), (right, bottom))
gl.color(self.bg)
gl.rectf(left, top, right, bottom)
gl.color(self.fg)
#
def invert(self, ((left, top), (right, bottom))):
#print 'invert', ((h0, v0), (h1, v1))
gl.logicop(LO_XOR)
gl.color(self.bg)
gl.rectf(left, top, right, bottom)
gl.color(self.fg)
gl.logicop(LO_SRC)
#
def line(self, (h0, v0), (h1, v1)):
#print 'line', ((h0, v0), (h1, v1))
gl.bgnline()
gl.v2i(h0, v0)
gl.v2i(h1, v1)
gl.endline()
#
def xorline(self, (h0, v0), (h1, v1)):
#print 'xorline', ((h0, v0), (h1, v1))
gl.logicop(LO_XOR)
gl.color(self.bg)
gl.bgnline()
gl.v2i(h0, v0)
gl.v2i(h1, v1)
gl.endline()
gl.color(self.fg)
gl.logicop(LO_SRC)
#
def point(self, (h, v)):
#print 'point', (h, v)
gl.bgnpoint()
gl.v2i(h, v)
gl.endpoint()
#
def text(self, (h, v), string):
#print 'text', ((h, v), string)
if h < 0:
# If the point is outside the window
# the whole string isn't drawn.
# Skip the beginning of the string.
# XXX What if the font is bigger than 20 pixels?
i, n = 0, len(string)
while h < -MASK and i < n:
h = h + self.font.getstrwidth(string[i])
i = i + 1
string = string[i:]
gl.cmov2(h, v + self.baseline())
self.font.setfont()
fm.prstr(string)
#
def shade(self, (h, v), percent):
pass # XXX
#
def baseline(self):
(printermatched, fixed_width, xorig, yorig, xsize, ysize, \
height, nglyphs) = self.font.getfontinfo()
return height - yorig
#
def lineheight(self):
(printermatched, fixed_width, xorig, yorig, xsize, ysize, \
height, nglyphs) = self.font.getfontinfo()
return height
#
def textbreak(self, string, width):
# XXX Slooooow!
n = len(string)
nwidth = self.textwidth(string[:n])
while nwidth > width:
n = n-1
nwidth = self.textwidth(string[:n])
return n
#
def textwidth(self, string):
return self.font.getstrwidth(string)
#
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