cpython/Demo/cwilib/form.py

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1993-10-28 06:53:13 -03:00
# Fill-out form window
import stdwin
from stdwinevents import *
class Form:
def __init__(self, title):
self.title = title
self.window = None
self.fields = {}
self.fieldnames = []
self.formwidth = self.formheight = 0
self.focusname = None
self.tefocus = None
def define_field(self, name, label, lines, chars):
self.fieldnames.append(name)
lh = stdwin.lineheight()
cw = stdwin.textwidth('m')
left = 20*cw
top = self.formheight + 4
right = left + chars*cw
bottom = top + lines*lh
te = None
self.fields[name] = (label, left, top, right, bottom, te)
self.formheight = bottom + 2
self.formwidth = max(self.formwidth, right + 4)
def open(self):
if self.window: return
self.formwidth = max(100, self.formwidth)
self.formheight = max(50, self.formheight)
stdwin.setdefwinsize(self.formwidth, self.formheight)
stdwin.setdefscrollbars(0, 0)
self.window = stdwin.open(self.title)
self.window.setdocsize(self.formwidth, self.formheight)
for name in self.fieldnames:
label, left, top, right, bottom, te = \
self.fields[name]
rect = (left, top), (right, bottom)
te = self.window.textcreate(rect)
te.setactive(0)
te.setview(rect)
self.fields[name] = \
label, left, top, right, bottom, te
if self.fieldnames:
self.setfocus(self.fieldnames[0])
def setfocus(self, name):
if name <> self.focusname and self.tefocus:
self.tefocus.setactive(0)
self.focusname = name
if self.focusname:
self.tefocus = self.fields[self.focusname][-1]
self.tefocus.setactive(1)
else:
self.tefocus = None
def dispatch(self, type, detail):
event = type, self.window, detail
if type == WE_NULL:
pass
elif type == WE_DRAW:
self.draw(detail)
elif type == WE_MOUSE_DOWN:
x, y = detail[0]
for name in self.fieldnames:
label, left, top, right, bottom, te = \
self.fields[name]
if left <= x < right and \
top <= y < bottom:
self.setfocus(name)
break
else:
stdwin.fleep()
return
if self.tefocus:
(left, top), (right, bottom) = \
self.tefocus.getrect()
if x < left: x = left
if x >= right: x = right-1
if y < top: y = top
if y >= bottom:
y = bottom-1
x = right-1
event = type, self.window, ((x,y),)+detail[1:]
if not self.tefocus.event(event):
stdwin.fleep()
elif type in (WE_MOUSE_MOVE, WE_MOUSE_UP, WE_CHAR):
if not self.tefocus or not self.tefocus.event(event):
stdwin.fleep()
elif type == WE_MOUSE_UP:
button = detail[2]
if button == 2:
self.paste_selection()
else:
self.make_selection()
elif type == WE_COMMAND:
if detail in (WC_BACKSPACE, WC_UP, WC_DOWN,
WC_LEFT, WC_RIGHT):
if not self.tefocus or \
not self.tefocus.event(event):
stdwin.fleep()
elif detail == WC_RETURN:
print '*** Submit query'
elif detail == WC_TAB:
if not self.fields:
stdwin.fleep()
return
if not self.focusname:
i = 0
else:
i = self.fieldnames.index(
self.focusname)
i = (i+1) % len(self.fieldnames)
self.setfocus(self.fieldnames[i])
self.tefocus.setfocus(0, 0x7fff)
self.make_selection()
elif type in (WE_ACTIVATE, WE_DEACTIVATE):
pass
elif type == WE_LOST_SEL:
if self.tefocus:
a, b = self.tefocus.getfocus()
self.tefocus.setfocus(a, a)
else:
print 'Form.dispatch(%d, %s)' % (type, `detail`)
def draw(self, detail):
d = self.window.begindrawing()
d.cliprect(detail)
d.erase(detail)
self.drawform(d, detail)
d.noclip()
d.close()
# Stupid textedit objects can't draw with open draw object...
self.drawtextedit(detail)
def drawform(self, d, detail):
for name in self.fieldnames:
label, left, top, right, bottom, te = self.fields[name]
d.text((0, top), label)
d.box((left-3, top-2), (right+4, bottom+2))
def drawtextedit(self, detail):
for name in self.fieldnames:
label, left, top, right, bottom, te = self.fields[name]
te.draw(detail)
def make_selection(self):
s = self.tefocus.getfocustext()
if not s:
return
stdwin.rotatecutbuffers(1)
stdwin.setcutbuffer(0, s)
if not self.window.setselection(WS_PRIMARY, s):
stdwin.fleep()
def paste_selection(self):
if not self.tefocus:
stdwin.fleep()
return
s = stdwin.getselection(WS_PRIMARY)
if not s:
s = stdwin.getcutbuffer(0)
if not s:
stdwin.fleep()
return
self.tefocus.replace(s)