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# Text editing widget
# NB: this always assumes fixed bounds.
# For auto-growing TextEdit windows, different code would be needed.
from stdwinevents import *
class TextEdit:
#
def create(self, (parent, (cols, rows))):
parent.addchild(self)
self.parent = parent
self.cols = cols
self.rows = rows
self.text = ''
# Creation of the editor is done in realize()
self.editor = None
self.dh = self.dv = 0
return self
#
def createboxed(self, (parent, (cols, rows), (dh, dv))):
self = self.create(parent, (cols, rows))
self.dh = max(0, dh)
self.dv = max(0, dv)
return self
#
def settext(self, text):
self.editor.settext(text)
#
# Downcalls from parent to child
#
def destroy(self):
del self.parent
del self.editor
del self.window
#
def getminsize(self, (m, (width, height))):
width = max(0, width - 2*self.dh)
height = max(0, height - 2*self.dv)
if width > 0 and self.editor:
(left, top), (right, bottom) = self.editor.getrect()
act_width, act_height = right - left, bottom - top
if width >= act_width:
width = width + 2*self.dh
height = max(height, act_height) + 2*self.dv
return width, height
width = max(width, self.cols*m.textwidth('in')/2) + 2*self.dh
height = max(height, self.rows*m.lineheight()) + 2*self.dv
return width, height
#
def setbounds(self, bounds):
self.bounds = bounds
if self.editor:
(left, top), (right, bottom) = bounds
left = left + self.dh
top = top + self.dv
right = right - self.dh
bottom = bottom - self.dv
self.editor.move((left, top), (right, bottom))
if self.dh and self.dv:
(left, top), (right, bottom) = bounds
left = left + 1
top = top + 1
right = right - 1
bottom = bottom - 1
bounds = (left, top), (right, bottom)
self.editor.setview(bounds)
#
def getbounds(self):
return self.bounds
#
def realize(self):
self.window = self.parent.getwindow()
(left, top), (right, bottom) = self.bounds
left = left + self.dh
top = top + self.dv
right = right - self.dh
bottom = bottom - self.dv
self.editor = \
self.window.textcreate((left, top), (right, bottom))
self.editor.setactive(0)
bounds = self.bounds
if self.dh and self.dv:
(left, top), (right, bottom) = bounds
left = left + 1
top = top + 1
right = right - 1
bottom = bottom - 1
bounds = (left, top), (right, bottom)
self.editor.setview(bounds)
self.editor.settext(self.text)
self.parent.need_mouse(self)
self.parent.need_keybd(self)
self.parent.need_altdraw(self)
#
def draw(self, (d, area)):
if self.dh and self.dv:
d.box(self.bounds)
#
def altdraw(self, area):
self.editor.draw(area)
#
# Event downcalls
#
def mouse_down(self, detail):
x = self.editor.event(WE_MOUSE_DOWN, self.window, detail)
#
def mouse_move(self, detail):
x = self.editor.event(WE_MOUSE_MOVE, self.window, detail)
#
def mouse_up(self, detail):
x = self.editor.event(WE_MOUSE_UP, self.window, detail)
#
def keybd(self, (type, detail)):
x = self.editor.event(type, self.window, detail)
#
def activate(self):
self.editor.setfocus(0, 30000)
self.editor.setactive(1)
#
def deactivate(self):
self.editor.setactive(0)
#
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