Hi there,
I have an old code that I don’t remember very well. (Sample included below.)
Everything works fine, but I need to implement a button_press_event().
This part doesn’t work at all.
As far as I can remember, this should work.
Would anyone be so kind to point me to my mistake?
Many thanks for your help,
Pablo
import gnomevfs
import gtk
import pygtk
try:
import poppler
except:
print "poppler is not available"
import sys
import cairo
import gtk.glade
class rec_presentation:
def __init__(self):
uri = gnomevfs.make_uri_from_shell_arg(sys.argv[1])
self.filename = sys.argv[1]
self.document = poppler.document_new_from_file (uri, None)
self.n_pages = self.document.get_n_pages()
self.page_selector = self.document.get_page(0)
self.current_page = 0
self.gui = gtk.glade.XML("recslides.glade","mainwindow",
domain="recslides")
self.win = self.gui.get_widget("mainwindow")
self.area = self.gui.get_widget("pdfdocument_area")
self.gui.signal_autoconnect(self)
self.win.add_events(gtk.gdk.BUTTON_PRESS_MASK)
self.width, self.height = self.win.get_size()
self.page_width, self.page_height= self.page_selector.get_size()
self.surface = cairo.ImageSurface(cairo.FORMAT_RGB24,
int(self.width),
int(self.height))
black = gtk.gdk.color_parse("black")
self.area.modify_bg(gtk.STATE_NORMAL, black)
self.area.set_size_request(int(self.width), int(self.height))
self.win.show_all()
def button_press_event(self, widget, event):
if event.button == 1:
print 'Clicked at x={0}, y={0}'.format(event.x, event.y)
self.win.connect('button-press-event', button_press_event)
def on_expose_event(self, widget, event):
add_x = 0
add_y = 0
if (self.area.allocation.width/self.page_width) <
(self.area.allocation.height/self.page_height):
self.scale = self.area.allocation.width/self.page_width
else:
self.scale = self.area.allocation.height/self.page_height
if (self.area.allocation.width/self.page_width) >
(self.area.allocation.height/self.page_height):
add_x=
int(((self.area.allocation.width-(self.page_width*self.scale))/2)/self.scale)
else:
add_y=
int(((self.area.allocation.height-(self.page_height*self.scale))/2)/self.scale)
cr = widget.window.cairo_create()
cr.set_source_surface(self.surface)
cr.set_source_rgb(1, 1, 1)
if self.scale != 1:
cr.scale(self.scale, self.scale)
cr.translate(add_x, add_y)
cr.rectangle(0, 0, self.page_width, self.page_height)
cr.fill()
self.page_selector.render(cr)
def gtk_main_quit(self, widget, event):
gtk.main_quit()
def main(self):
gtk.main()
rec = rec_presentation()
rec.main()
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