Python gtk 模块，gdk() 实例源码
我们从Python开源项目中，提取了以下45个代码示例，用于说明如何使用gtk.gdk()。
def __init__(self):
gtk.DrawingArea.__init__(self)
self.graph = Graph()
self.openfilename = None
self.set_flags(gtk.CAN_FOCUS)
self.add_events(gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK)
self.connect("button-press-event", self.on_area_button_press)
self.connect("button-release-event", self.on_area_button_release)
self.add_events(gtk.gdk.POINTER_MOTION_MASK | gtk.gdk.POINTER_MOTION_HINT_MASK | gtk.gdk.BUTTON_RELEASE_MASK)
self.connect("motion-notify-event", self.on_area_motion_notify)
self.connect("scroll-event", self.on_area_scroll_event)
self.connect("size-allocate", self.on_area_size_allocate)
self.connect('key-press-event', self.on_key_press_event)
self.x, self.y = 0.0, 0.0
self.zoom_ratio = 1.0
self.zoom_to_fit_on_resize = False
self.animation = NoAnimation(self)
self.drag_action = NullAction(self)
self.presstime = None
self.highlight = None
def __init__(self):
gtk.DrawingArea.__init__(self)
self.graph = Graph()
self.openfilename = None
self.set_flags(gtk.CAN_FOCUS)
self.add_events(gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK)
self.connect("button-press-event", self.on_area_button_press)
self.connect("button-release-event", self.on_area_button_release)
self.add_events(gtk.gdk.POINTER_MOTION_MASK | gtk.gdk.POINTER_MOTION_HINT_MASK | gtk.gdk.BUTTON_RELEASE_MASK)
self.connect("motion-notify-event", self.on_area_motion_notify)
self.connect("scroll-event", self.on_area_scroll_event)
self.connect("size-allocate", self.on_area_size_allocate)
self.connect('key-press-event', self.on_key_press_event)
self.x, self.y = 0.0, 0.0
self.zoom_ratio = 1.0
self.zoom_to_fit_on_resize = False
self.animation = NoAnimation(self)
self.drag_action = NullAction(self)
self.presstime = None
self.highlight = None
def display_frame(self,a,b):
self.drawing_area.window.draw_rectangle(self.drawing_area.get_style().white_gc,False,0,0,799,599)
if self.isBanner_mode:
self.canvas.draw_rgb_image(self.gc,1,1,798,598,gtk.gdk.RGB_DITHER_NORMAL,self.img.tostring(),2400)
#self.final=self.getOutput_frames()
#self.final=cv2.cvtColor(self.final,cv2.cv.CV_BGR2RGB)
elif not self.isBanner_mode:
if self.final==None:
self.final=self.getOutput_frames()
self.final=cv2.cvtColor(self.final,cv2.cv.CV_BGR2RGB)
self.drawing_area.queue_draw()
return
else:
self.canvas.draw_rgb_image(self.gc,1,1,798,598,gtk.gdk.RGB_DITHER_NORMAL,self.final.tostring(),2400)
self.final=self.getOutput_frames()
self.final=cv2.cvtColor(self.final,cv2.cv.CV_BGR2RGB)
self.drawing_area.queue_draw()
#self.canvas.draw_rgb_image(self.gc,1,1,798,598,gtk.gdk.RGB_DITHER_NORMAL,self.final.tostring(),2400)
def draw(self, cr, highlight=False):
cr2 = gtk.gdk.CairoContext(cr)
pixbuf = gtk.gdk.pixbuf_new_from_file(self.path)
sx = float(self.w)/float(pixbuf.get_width())
sy = float(self.h)/float(pixbuf.get_height())
cr.save()
cr.translate(self.x0, self.y0 - self.h)
cr.scale(sx, sy)
cr2.set_source_pixbuf(pixbuf, 0, 0)
cr2.paint()
cr.restore()
def lookup_color(self, c):
try:
color = gtk.gdk.color_parse(c)
except ValueError:
pass
else:
s = 1.0/65535.0
r = color.red*s
g = color.green*s
b = color.blue*s
a = 1.0
return r, g, b, a
try:
dummy, scheme, index = c.split('/')
r, g, b = brewer_colors[scheme][int(index)]
except (ValueError, KeyError):
pass
else:
s = 1.0/255.0
r = r*s
g = g*s
b = b*s
a = 1.0
return r, g, b, a
sys.stderr.write("warning: unknown color '%s'\n" % c)
return None
def on_motion_notify(self, event):
if event.is_hint:
x, y, state = event.window.get_pointer()
else:
x, y, state = event.x, event.y, event.state
dot_widget = self.dot_widget
item = dot_widget.get_url(x, y)
if item is None:
item = dot_widget.get_jump(x, y)
if item is not None:
dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.HAND2))
dot_widget.set_highlight(item.highlight)
else:
dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
dot_widget.set_highlight(None)
def start(self):
self.dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.FLEUR))
def stop(self):
self.dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
def get_drag_action(self, event):
state = event.state
if event.button in (1, 2): # left or middle button
if state & gtk.gdk.CONTROL_MASK:
return ZoomAction
elif state & gtk.gdk.SHIFT_MASK:
return ZoomAreaAction
else:
return PanAction
return NullAction
def is_click(self, event, click_fuzz=4, click_timeout=1.0):
assert event.type == gtk.gdk.BUTTON_RELEASE
if self.presstime is None:
# got a button release without seeing the press?
return False
# XXX instead of doing this complicated logic, shouldn't we listen
# for gtk's clicked event instead?
deltax = self.pressx - event.x
deltay = self.pressy - event.y
return (time.time() < self.presstime + click_timeout
and math.hypot(deltax, deltay) < click_fuzz)
def on_area_scroll_event(self, area, event):
if event.direction == gtk.gdk.SCROLL_UP:
self.zoom_image(self.zoom_ratio * self.ZOOM_INCREMENT,
pos=(event.x, event.y))
return True
if event.direction == gtk.gdk.SCROLL_DOWN:
self.zoom_image(self.zoom_ratio / self.ZOOM_INCREMENT,
pos=(event.x, event.y))
return True
return False
def __init__(self, graph, layout, scrollwin=None, ):
gtk.DrawingArea.__init__(self)
self._vg_graph = graph
self._vg_layout = layout
self._vg_scrollwin = scrollwin
self.connect('expose-event', self.expose_event_cb)
self.connect('button_press_event', self.button_press_event)
self.set_events( self.get_events() | gtk.gdk.BUTTON_PRESS_MASK)
self.modify_bg(gtk.STATE_NORMAL, gtk.gdk.Color())
self.modify_fg(gtk.STATE_NORMAL, gtk.gdk.Color(green=65535))
if scrollwin != None:
scrollwin.connect('destroy', self.scroll_destroy_cb)
def expose_event_cb(self, layout, event):
style = self.get_style()
gc = style.fg_gc[gtk.STATE_NORMAL]
rect = self.get_allocation()
owidth = rect.width
oheight = rect.height
lwidth, lheight = self._vg_layout.getLayoutSize()
for nid, ninfo in self._vg_graph.getNodes():
nwidth, nheight = ninfo.get('size', zero_zero)
if nwidth == 0:
continue
xpos, ypos = ninfo.get('position', zero_zero)
drawx = ((xpos * owidth) / lwidth)
drawy = (ypos * oheight) / lheight
sizex = owidth * nwidth / lwidth
sizey = oheight * nheight / lheight
colorstr = ninfo.get('color')
if colorstr == None:
colorstr = '#0f0'
color = gtk.gdk.color_parse(colorstr)
#self.modify_fg(gtk.STATE_NORMAL, color)
self.window.draw_rectangle(gc, False, drawx, drawy, sizex, sizey)
#c = self.window.cairo_create()
#c.set_source_rgb(color.red / float(65535), color.green / float(65535), color.blue / float(65535))
#c.rectangle(drawx, drawy, sizex, sizey)# event.area.x, event.area.y, event.area.width, event.area.height)
#c.set_line_width(0.5)
#c.stroke()
def __init__(self, graph):
gtk.Layout.__init__(self)
vg_render.GraphRenderer.__init__(self, graph)
self._vg_lines = []
self.connect('expose-event', self.expose_event_cb)
self.connect('button_press_event', self.button_press_event)
self.set_events( self.get_events() | gtk.gdk.BUTTON_PRESS_MASK)
self.modify_bg(gtk.STATE_NORMAL, gtk.gdk.Color())
self.modify_fg(gtk.STATE_NORMAL, gtk.gdk.Color(green=65535))
def setNodeSizes(self, graph):
for nid, ninfo in graph.getNodes():
# Skip "ghost" nodes...
if ninfo.get('ghost'):
continue
widget = ninfo.get('widget')
if widget == None:
widget = gtk.Label(str(nid))
widget.modify_bg(gtk.STATE_NORMAL, gtk.gdk.Color())
widget.modify_fg(gtk.STATE_NORMAL, gtk.gdk.Color(green=65535))
ninfo['widget'] = widget
# Put them all at 0,0 for now...
self.put(widget, 0, 0)
# Get them all to render...
self.show_all()
vw_main.doiterations()
# Now that we have rendered them...
for nid, ninfo in graph.getNodes():
widget = ninfo.get('widget')
if widget == None:
continue
size = widget.size_request()
ninfo['size'] = size
def lookup_color(self, c):
try:
color = gtk.gdk.color_parse(c)
except ValueError:
pass
else:
s = 1.0/65535.0
r = color.red*s
g = color.green*s
b = color.blue*s
a = 1.0
return r, g, b, a
try:
dummy, scheme, index = c.split('/')
r, g, b = brewer_colors[scheme][int(index)]
except (ValueError, KeyError):
pass
else:
s = 1.0/255.0
r = r*s
g = g*s
b = b*s
a = 1.0
return r, g, b, a
sys.stderr.write("unknown color '%s'\n" % c)
return None
def on_motion_notify(self, event):
if event.is_hint:
x, y, state = event.window.get_pointer()
else:
x, y, state = event.x, event.y, event.state
dot_widget = self.dot_widget
item = dot_widget.get_url(x, y)
if item is None:
item = dot_widget.get_jump(x, y)
if item is not None:
dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.HAND2))
dot_widget.set_highlight(item.highlight)
else:
dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
dot_widget.set_highlight(None)
def start(self):
self.dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.FLEUR))
def stop(self):
self.dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
def is_click(self, event, click_fuzz=4, click_timeout=1.0):
assert event.type == gtk.gdk.BUTTON_RELEASE
if self.presstime is None:
# got a button release without seeing the press?
return False
# XXX instead of doing this complicated logic, shouldn't we listen
# for gtk's clicked event instead?
deltax = self.pressx - event.x
deltay = self.pressy - event.y
return (time.time() < self.presstime + click_timeout
and math.hypot(deltax, deltay) < click_fuzz)
def on_area_scroll_event(self, area, event):
if event.direction == gtk.gdk.SCROLL_UP:
self.zoom_image(self.zoom_ratio * self.ZOOM_INCREMENT,
pos=(event.x, event.y))
return True
if event.direction == gtk.gdk.SCROLL_DOWN:
self.zoom_image(self.zoom_ratio / self.ZOOM_INCREMENT,
pos=(event.x, event.y))
return True
return False
def draw(self, cr, highlight=False):
cr2 = gtk.gdk.CairoContext(cr)
pixbuf = gtk.gdk.pixbuf_new_from_file(self.path)
sx = float(self.w)/float(pixbuf.get_width())
sy = float(self.h)/float(pixbuf.get_height())
cr.save()
cr.translate(self.x0, self.y0 - self.h)
cr.scale(sx, sy)
cr2.set_source_pixbuf(pixbuf, 0, 0)
cr2.paint()
cr.restore()
def lookup_color(self, c):
try:
color = gtk.gdk.color_parse(c)
except ValueError:
pass
else:
s = 1.0/65535.0
r = color.red*s
g = color.green*s
b = color.blue*s
a = 1.0
return r, g, b, a
try:
dummy, scheme, index = c.split('/')
r, g, b = brewer_colors[scheme][int(index)]
except (ValueError, KeyError):
pass
else:
s = 1.0/255.0
r = r*s
g = g*s
b = b*s
a = 1.0
return r, g, b, a
sys.stderr.write("warning: unknown color '%s'\n" % c)
return None
def on_motion_notify(self, event):
if event.is_hint:
x, y, state = event.window.get_pointer()
else:
x, y, state = event.x, event.y, event.state
dot_widget = self.dot_widget
item = dot_widget.get_url(x, y)
if item is None:
item = dot_widget.get_jump(x, y)
if item is not None:
dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.HAND2))
dot_widget.set_highlight(item.highlight)
else:
dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
dot_widget.set_highlight(None)
def start(self):
self.dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.FLEUR))
def stop(self):
self.dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
def get_drag_action(self, event):
state = event.state
if event.button in (1, 2): # left or middle button
if state & gtk.gdk.CONTROL_MASK:
return ZoomAction
elif state & gtk.gdk.SHIFT_MASK:
return ZoomAreaAction
else:
return PanAction
return NullAction
def is_click(self, event, click_fuzz=4, click_timeout=1.0):
assert event.type == gtk.gdk.BUTTON_RELEASE
if self.presstime is None:
# got a button release without seeing the press?
return False
# XXX instead of doing this complicated logic, shouldn't we listen
# for gtk's clicked event instead?
deltax = self.pressx - event.x
deltay = self.pressy - event.y
return (time.time() < self.presstime + click_timeout
and math.hypot(deltax, deltay) < click_fuzz)
def on_area_scroll_event(self, area, event):
if event.direction == gtk.gdk.SCROLL_UP:
self.zoom_image(self.zoom_ratio * self.ZOOM_INCREMENT,
pos=(event.x, event.y))
return True
if event.direction == gtk.gdk.SCROLL_DOWN:
self.zoom_image(self.zoom_ratio / self.ZOOM_INCREMENT,
pos=(event.x, event.y))
return True
return False
def pressed(self, widget, event):
if not self.use_default_controls:return
button1 = event.button == 1
button2 = event.button == 2
button3 = event.button == 3
if button1:
self.select_prime(event.x, event.y) # select G-Code element
if button3 and (event.type == gtk.gdk._2BUTTON_PRESS):
self.clear_live_plotter()
elif button1 or button2 or button3:
self.startZoom(event.y)
self.recordMouse(event.x, event.y)
def scroll(self, widget, event):
if not self.use_default_controls:return
if event.direction == gtk.gdk.SCROLL_UP: self.zoomin()
elif event.direction == gtk.gdk.SCROLL_DOWN: self.zoomout()
def draw(self, cr, highlight=False):
cr2 = gtk.gdk.CairoContext(cr)
pixbuf = gtk.gdk.pixbuf_new_from_file(self.path)
sx = float(self.w)/float(pixbuf.get_width())
sy = float(self.h)/float(pixbuf.get_height())
cr.save()
cr.translate(self.x0, self.y0 - self.h)
cr.scale(sx, sy)
cr2.set_source_pixbuf(pixbuf, 0, 0)
cr2.paint()
cr.restore()
def lookup_color(self, c):
try:
color = gtk.gdk.color_parse(c)
except ValueError:
pass
else:
s = 1.0/65535.0
r = color.red*s
g = color.green*s
b = color.blue*s
a = 1.0
return r, g, b, a
try:
dummy, scheme, index = c.split('/')
r, g, b = brewer_colors[scheme][int(index)]
except (ValueError, KeyError):
pass
else:
s = 1.0/255.0
r = r*s
g = g*s
b = b*s
a = 1.0
return r, g, b, a
sys.stderr.write("warning: unknown color '%s'\n" % c)
return None
def on_motion_notify(self, event):
if event.is_hint:
x, y, state = event.window.get_pointer()
else:
x, y, state = event.x, event.y, event.state
dot_widget = self.dot_widget
item = dot_widget.get_url(x, y)
if item is None:
item = dot_widget.get_jump(x, y)
if item is not None:
dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.HAND2))
dot_widget.set_highlight(item.highlight)
else:
dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
dot_widget.set_highlight(None)
def start(self):
self.dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.FLEUR))
def stop(self):
self.dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
def get_drag_action(self, event):
state = event.state
if event.button in (1, 2): # left or middle button
if state & gtk.gdk.CONTROL_MASK:
return ZoomAction
elif state & gtk.gdk.SHIFT_MASK:
return ZoomAreaAction
else:
return PanAction
return NullAction
def is_click(self, event, click_fuzz=4, click_timeout=1.0):
assert event.type == gtk.gdk.BUTTON_RELEASE
if self.presstime is None:
# got a button release without seeing the press?
return False
# XXX instead of doing this complicated logic, shouldn't we listen
# for gtk's clicked event instead?
deltax = self.pressx - event.x
deltay = self.pressy - event.y
return (time.time() < self.presstime + click_timeout
and math.hypot(deltax, deltay) < click_fuzz)
def on_area_scroll_event(self, area, event):
if event.direction == gtk.gdk.SCROLL_UP:
self.zoom_image(self.zoom_ratio * self.ZOOM_INCREMENT,
pos=(event.x, event.y))
return True
if event.direction == gtk.gdk.SCROLL_DOWN:
self.zoom_image(self.zoom_ratio / self.ZOOM_INCREMENT,
pos=(event.x, event.y))
return True
return False
def lookup_color(self, c):
try:
color = gtk.gdk.color_parse(c)
except ValueError:
pass
else:
s = 1.0/65535.0
r = color.red*s
g = color.green*s
b = color.blue*s
a = 1.0
return r, g, b, a
try:
dummy, scheme, index = c.split('/')
r, g, b = brewer_colors[scheme][int(index)]
except (ValueError, KeyError):
pass
else:
s = 1.0/255.0
r = r*s
g = g*s
b = b*s
a = 1.0
return r, g, b, a
sys.stderr.write("unknown color '%s'\n" % c)
return None
def on_motion_notify(self, event):
if event.is_hint:
x, y, state = event.window.get_pointer()
else:
x, y, state = event.x, event.y, event.state
dot_widget = self.dot_widget
item = dot_widget.get_url(x, y)
if item is None:
item = dot_widget.get_jump(x, y)
if item is not None:
dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.HAND2))
dot_widget.set_highlight(item.highlight)
else:
dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
dot_widget.set_highlight(None)
def start(self):
self.dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.FLEUR))
def stop(self):
self.dot_widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
def is_click(self, event, click_fuzz=4, click_timeout=1.0):
assert event.type == gtk.gdk.BUTTON_RELEASE
if self.presstime is None:
# got a button release without seeing the press?
return False
# XXX instead of doing this complicated logic, shouldn't we listen
# for gtk's clicked event instead?
deltax = self.pressx - event.x
deltay = self.pressy - event.y
return (time.time() < self.presstime + click_timeout
and math.hypot(deltax, deltay) < click_fuzz)
def on_area_scroll_event(self, area, event):
if event.direction == gtk.gdk.SCROLL_UP:
self.zoom_image(self.zoom_ratio * self.ZOOM_INCREMENT,
pos=(event.x, event.y))
return True
if event.direction == gtk.gdk.SCROLL_DOWN:
self.zoom_image(self.zoom_ratio / self.ZOOM_INCREMENT,
pos=(event.x, event.y))
return True
return False