【发布时间】：2017-09-27 17:24:11
【问题描述】：
我正在 pygame 中创建控件（按钮和标签是唯一完成的，以及为控件设置工具提示）。我正在以正确的 Z 顺序绘制控件，但我试图检测鼠标不在另一个控件上，因此它只会激活可见的那个。
这在某种程度上，如果你删除 test.set_on_bottom(btnButton7)，它只会触发 button7，即使鼠标悬停在它下面的按钮之一上，但是如果你点击 button7 下面的按钮之一并移动将鼠标悬停在 button7 上它仍然认为原始按钮正在被点击（当它不应该被点击时）
几天来我一直在思考这个问题，但我就是想不通。
（另外，我今天早上才想到，但我应该把每个控件变成一个类而不是一个 id，所以稍后会重新设计）
代码太长，不能发，这里是pastebin link
设置状态和触发消息的所有处理都在 process_events 方法中完成
def process_events(self):
button = pygame.mouse.get_pressed()
mouse_pos = pygame.mouse.get_pos()
for control_id in reversed(self.__z_order):
state = self.__control_list[control_id]['state']
if state in ('deleted', 'disabled') or not self.__control_list[control_id]['draw']:
continue
if self.__control_list[control_id]['rect'].collidepoint(mouse_pos):
# left mouse is pressed
if button[0]:
# current state of this control is hot and left mouse is pressed on it
if state == 'hot':
for x in self.__z_order[0:control_id - 1]:
if self.__control_list[x]['state'] == 'pressed':
self.__control_list[x]['state'] = 'normal'
can_change = True
for x in self.__z_order[control_id + 1:]:
if self.__control_list[x]['state'] == 'pressed':
can_change = False
break
# change the state to pressed
if can_change:
self.__control_list[control_id]['state'] = 'pressed'
self.__control_list[control_id]['mouse_pos_lclick'] = None
self.__control_list[control_id]['mouse_pos_ldown'] = mouse_pos
if self.__control_list[control_id]['on_hover_called']:
self.__draw_tip = None
if (time.clock() - self.__control_list[control_id][
'dbl_timer'] >= self.__dbl_click_delay) and \
(time.clock() - self.__control_list[control_id]['timer'] <= self.__dbl_click_speed):
if self.__event_mode:
if self.__control_list[control_id]['on_dbl_lclick']:
self.__control_list[control_id]['on_dbl_lclick']()
else:
self.__messages.append(self.Message(control_id, PGC_LBUTTONDBLCLK))
# print('Double click', self.__control_list[control_id]['text'])
self.__control_list[control_id]['dbl_timer'] = time.clock()
self.__control_list[control_id]['timer'] = -1
break
# go through the controls from top to bottom first
for control_id in reversed(self.__z_order):
state = self.__control_list[control_id]['state']
if state in ('deleted', 'disabled') or not self.__control_list[control_id]['draw']:
continue
# check if the mouse is over this control
if self.__control_list[control_id]['rect'].collidepoint(mouse_pos):
# left mouse is not down
if not button[0]:
# state is currently pressed
if state == 'pressed':
# check if there's a timer initiated for this control
# this prevents 2 clicks + a double click message
if self.__control_list[control_id]['timer'] >= 0:
self.__control_list[control_id]['dbl_timer'] = -1
self.__control_list[control_id]['timer'] = time.clock()
# if the event mode
if self.__event_mode:
# call the function if there is one
if self.__control_list[control_id]['on_lclick']:
self.__control_list[control_id]['on_lclick']()
else:
# post the message to the messages queue
self.__messages.append(self.Message(control_id, PGC_LBUTTONUP))
# print('Click', self.__control_list[control_id]['text'])
# the timer is < 0 (should be -1), double click just happened
else:
# reset the timer to 0 so clicking can happen again
self.__control_list[control_id]['timer'] = 0
# go through all of the ids below this control
for x in self.__z_order[0:control_id - 1]:
# set all the hot controls to normal
if self.__control_list[x]['state'] == 'hot':
self.__control_list[x]['state'] = 'normal'
can_change = True
# go through all the controls on top of this control
for x in self.__z_order[control_id + 1:]:
# something else is on top of this and it's already hot, can't change this control
if self.__control_list[x]['state'] == 'hot':
can_change = False
break
if can_change:
self.__control_list[control_id]['state'] = 'hot'
self.__control_list[control_id]['mouse_pos_lclick'] = mouse_pos
self.__control_list[control_id]['mouse_pos_ldown'] = None
# state is not currently hot (but we're hovering over this control)
elif state != 'hot':
# check for any other contorls
for x in self.__z_order[0:control_id - 1]:
if self.__control_list[x]['state'] == 'hot':
self.__control_list[x]['state'] = 'normal'
can_change = True
for x in self.__z_order[control_id + 1:]:
if self.__control_list[x]['state'] == 'hot':
can_change = False
break
# change the state to hot
if can_change:
self.__control_list[control_id]['state'] = 'hot'
self.__control_list[control_id]['mouse_pos_hover'] = mouse_pos
# used to start a tooltip (needs work)
self.__control_list[control_id]['mouse_pos_rect'] = pygame.Rect(mouse_pos[0] - 7,
mouse_pos[1] - 7,
mouse_pos[0] + 7,
mouse_pos[1] + 7)
# state is currently 'hot'
else:
# timer for on_hover hasn't been initialized
if self.__control_list[control_id]['timer_on_hover'] == 0:
self.__control_list[control_id]['timer_on_hover'] = time.clock()
# mouse is in the area
if self.__control_list[control_id]['mouse_pos_rect'].collidepoint(mouse_pos):
# if the on_hover hasn't been triggered and there is a timer for the on_hover
if not self.__control_list[control_id]['on_hover_called'] and self.__control_list[control_id]['timer_on_hover']:
# if the mouse has been in the hover area for 1.5 seconds or more
if time.clock() - self.__control_list[control_id]['timer_on_hover'] >= 1.5:
# trigger the hover
self.__control_list[control_id]['on_hover_called'] = True
# on_hover is a function call, call the function
if self.__control_list[control_id]['on_hover']['type'] == 'function':
self.__control_list[control_id]['on_hover']['func'](self.__control_list[control_id]['on_hover']['args'])
# on_hover is a tip, set the self.__draw_tip variable to the tip we need
else:
self.__draw_tip = self.__control_list[control_id]['on_hover'].copy()
self.__draw_tip['rect'].x = mouse_pos[0]
self.__draw_tip['rect'].y = mouse_pos[1]
# mouse is not in the control rect and the state is not currently normal
elif state != 'normal':
# set it to normal
self.__control_list[control_id]['state'] = 'normal'
# clear the on_hover stuff
if self.__control_list[control_id]['on_hover_called']:
self.__control_list[control_id]['on_hover_called'] = False
self.__draw_tip = None
if self.__control_list[control_id]['timer_on_hover']:
self.__control_list[control_id]['timer_on_hover'] = 0
【问题讨论】：
标签： python pygame controls custom-controls z-order