Hi
My first hack at a Patch Panel application is progressing. To
facilitate rapid screen redraw I planned to use
the Pixmap class. However I cannot understand how the same objects
that are absolutely referenced to my
main Window and also written to the Pixmap, appear row inverted when
retrieved from the Pixmap and
displayed alongside the main Window-written set? The graphics
positioning is upside down but the text
drawing in the Pixmap is rightside up.
Cheers
Colin Brown
Code on Mac OSX:
from GUI import Application, Document, Window, FileType, View, Frame,
Pixmap
from GUI.StdColors import black, yellow, green
from GUI.Geometry import pt_in_rect
class myApp(Application):
def __init__(self, title=None):
Application.__init__(self, title=title)
self.item_type = FileType(name="Item Document", suffix = 'patch')
self.file_type = self.item_type
self.pm = Pixmap(450,800)
def open_app(self):
self.new_cmd()
def make_document(self, fileref):
return ItemDoc(file_type = self.item_type)
def make_window(self, document):
win = Window(size=(950,800), title='Patch Panel',
document=document)
view = ItemView(model=document)
win.place(view, left=0, top=0, right=0, bottom=0, sticky='nsew')
win.show()
def zero_windows_allowed(self):
return
class ItemView(View, Frame):
def __init__(self,*args, **kargs):
View.__init__(self,*args, **kargs)
for n in range(15):
for m in range(8):
self.model.add_item(Item((50*(m+1),50*(n+1)), '%03i' % (1+m
+8*n,)))
def draw(self, canvas, update_rect):
canvas.fillcolor = yellow
canvas.pencolor = black
for item in self.model.items:
item.draw(canvas)
A.pm.draw(canvas,(0,0,450,800),(500,0,950,800))
def mouse_move(self, ev):
print self.model.onItem(ev.position)
class ItemDoc(Document):
def new_contents(self):
self.items = []
def add_item(self, item):
self.changed()
self.notify_views('item_changed', item)
self.items.append(item)
item.setpm(1)
A.pm.with_canvas(item.draw)
item.setpm(0)
def onItem(self, xy):
for n in range(len(self.items)):
if self.items[n].contains(xy):
return n+1
return 0
class Item:
def __init__(self, c, t):
self.centre = c
self.rect, self.text = (c[0]-20,c[1]-20,c[0]+20,c[1]+20), t
self.pm = 0
def contains(self, xy):
return pt_in_rect(xy, self.rect)
def setpm(self,state):
self.pm = state
def draw(self, canvas):
if self.pm:
canvas.fillcolor = green
canvas.pencolor = black
else:
canvas.fillcolor = yellow
l,t,r,b = self.rect
canvas.newpath()
canvas.moveto(l,t)
canvas.lineto(r,t)
canvas.lineto(r,b)
canvas.lineto((r+l)/2,b+3) # Help debug pixmap drawing problem
canvas.lineto(l,b)
canvas.closepath()
canvas.fill_stroke()
canvas.moveto(l+9,t+24)
canvas.show_text(self.text)
A = myApp('Patch Panel')
A.run()
_______________________________________________
Pygui mailing list
[email protected]
http://mail.python.org/mailman/listinfo/pygui
