PySide：改变 window 的 resize/growth 方向
PySide: Changing resize/growth direction of a window
我在 window 的边缘创建了弹出窗口，我希望它在用户输入文本字段时扩展弹出窗口。这目前有效，但 window 正在向右扩展。相反，我希望弹出窗口向左扩展（并保持右边缘固定到位）。
我最接近的例子如下所示。在其中，我通过每个文本输入获取弹出窗口的大小，然后根据其新大小移动弹出窗口。我觉得这应该有效，但事实并非如此。
在输入第一个文本时，弹出窗口跳到我屏幕的左边缘（仅限 x 转换）。在第二个文本输入上，弹出窗口跳回其原始位置。在第三个文本输入时，弹出窗口跳回到屏幕的左边缘。在第四个输入...你明白了。我还想提一下，window 的整体增长看起来像是从弹出窗口的中心而不是右边缘增长。
我注意到单击按钮后它会一直突出显示，直到我的鼠标经过它。这会导致问题吗？
任何想法或更好的方法来实现这种效果都会很棒，谢谢！
from PySide import QtCore, QtGui
import maya.OpenMayaUI as mui
from shiboken import wrapInstance
def get_parent():
ptr = mui.MQtUtil.mainWindow()
return wrapInstance( long( ptr ), QtGui.QWidget )
############################################
class Tool_Window(QtGui.QDialog):
def __init__(self, parent = get_parent() ):
super(Tool_Window, self).__init__(parent)
# Commands
self.move_UI()
self.create_gui()
self.create_layout()
self.create_connections()
#-------------------------------------------
def create_gui(self):
self.button1 = QtGui.QPushButton()
self.button1.setMaximumWidth(50)
self.button2 = QtGui.QPushButton()
self.button2.setMaximumWidth(50)
self.button3 = QtGui.QPushButton()
self.button3.setMaximumWidth(50)
#-------------------------------------------
def create_layout(self):
layout = QtGui.QVBoxLayout()
layout.addWidget(self.button1)
layout.addWidget(self.button2)
layout.addWidget(self.button3)
blank_layout = QtGui.QVBoxLayout()
main_layout = QtGui.QHBoxLayout( self )
main_layout.addLayout(blank_layout)
main_layout.addLayout(layout)
layout.addStretch()
self.setLayout(layout)
#-------------------------------------------
def move_UI( self ):
''' Moves the UI to the cursor's position '''
pos = QtGui.QCursor.pos()
self.move(pos.x()+20, pos.y()+15)
#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#
def create_connections(self):
# Left click
self.button1.clicked.connect( self.on_left_click1 )
self.button2.clicked.connect( self.on_left_click2 )
self.button3.clicked.connect( self.on_left_click3 )
# Right click delete
delete = QtGui.QAction(self)
delete.setText("remove")
delete.triggered.connect(self.remove_button)
self.addAction(delete)
#-----#-----#-----#-----#-----#-----#-----#-----#-----#
def remove_button(self):
self.deleteLater()
def on_left_click1(self):
self.popup = Popup_Window( self, self.button1 ) # Passing button in so I can get it's position
self.popup.show()
def on_left_click2(self):
self.popup = Popup_Window( self, self.button2 )
self.popup.show()
def on_left_click3(self):
self.popup = Popup_Window( self, self.button3 )
self.popup.show()
############################################
class Popup_Window( QtGui.QDialog ):
def __init__( self, toolWindow, button ):
super( Popup_Window, self ).__init__()
self.__popup_filter = ClosePopupFilter()
self.installEventFilter(self.__popup_filter)
self.setWindowFlags(QtCore.Qt.Popup)
'''
self.setWindowFlags(QtCore.Qt.FramelessWindowHint |
QtCore.Qt.WindowStaysOnTopHint |
QtCore.Qt.CustomizeWindowHint |
QtCore.Qt.Tool)
'''
self.button_pos = button
self.toolWindow = toolWindow
self.setAttribute( QtCore.Qt.WA_DeleteOnClose )
self.resize(100, 100)
# Commands
self.create_gui()
self.create_layout()
self.create_connections()
self.move_UI()
#-------------------------------------------
def move_UI( self ): # Method that I use to place the popup window initially
self.line_edit.setFocus()
# Get button position
self.btn_global_point = self.button_pos.mapToGlobal(self.button_pos.rect().topLeft())
print self.btn_global_point
# Get window position
self.win_global_point = self.toolWindow.mapToGlobal(self.rect().topLeft())
print self.win_global_point
# Get popup Size
self.popup_size = self.mapToGlobal(self.rect().topRight())
print self.popup_size
# Move the window
self.move((self.win_global_point.x()-self.popup_size.x()), self.btn_global_point.y())
#-------------------------------------------
def create_gui( self ):
''' Visible GUI stuff '''
self.my_label = QtGui.QLabel("default text")
self.line_edit = QtGui.QLineEdit()
self.line_edit.setMaxLength( 30 )
self.push_btn = QtGui.QPushButton( "Hey" )
self.push_btn.setMaximumWidth( 30 )
#-------------------------------------------
def create_layout( self ):
self.button_layout = QtGui.QVBoxLayout()
self.button_layout.addWidget( self.my_label )
self.button_layout.addWidget( self.line_edit )
self.button_layout.addWidget( self.push_btn )
#self.button_layout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self.button_layout)
#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#
def create_connections( self ):
self.line_edit.textChanged.connect( self.on_text_changed )
#-----#-----#-----#-----#-----#-----#-----#-----#-----#
def on_text_changed( self ):
typed_name = self.line_edit.text()
self.my_label.setText(typed_name)
self.move_UI() # I reuse the move method to move the ui on text edit
############################################
class ClosePopupFilter(QtCore.QObject):
''' Close popup window '''
def eventFilter(self, target, event):
if event.type() == QtCore.QEvent.WindowDeactivate:
target.close()
return False
if __name__ == '__main__':
# Things to fix PySide Maya bug
try:
test_ui.close()
test_ui.deleteLater()
except:
pass
test_ui = Tool_Window()
test_ui.show()
try:
test_ui.show()
except:
test_ui.close()
test_ui.deleteLater()
我对您在 OP 中提供的代码进行了一些修改，并尝试整理一个示例来解决您的特定问题。
我对代码所做的一些修改：
- 触发
Popup_Window的resizeEvent内的move_UI；
- 更正了
Popup_Window 中的方法 move_UI，这样弹出窗口就不会从一个位置闪烁到另一个位置；
- 将
eventFilter 直接移动到 Popup_Window 内；
- 合并了
Tool_Window 中处理 button.clicked.connect 事件的函数。
解决方案不完善，弹出window在Ubuntu中展开移动时还有一点'flicker'。然而，这在 Windows7 中不是很明显。如果我想到其他解决方案，我会进行更新。
from PySide import QtCore, QtGui
import sys
class Tool_Window(QtGui.QDialog): #=============================================
def __init__(self, parent=None):
super(Tool_Window, self).__init__(parent)
self.create_gui()
self.create_layout()
self.create_connections()
def create_gui(self): #=====================================================
self.button1 = QtGui.QPushButton('Button 1')
self.button2 = QtGui.QPushButton('Button 2')
self.button3 = QtGui.QPushButton('Button 3')
def create_layout(self): #==================================================
layout = QtGui.QVBoxLayout()
layout.addWidget(self.button1)
layout.addWidget(self.button2)
layout.addWidget(self.button3)
self.setLayout(layout)
def create_connections(self): #=============================================
self.button1.clicked.connect(self.on_lef_click )
self.button2.clicked.connect(self.on_lef_click )
self.button3.clicked.connect(self.on_lef_click )
def on_lef_click(self): #===================================================
button = self.sender()
self.popup = Popup_Window(self, button)
self.popup.show()
class Popup_Window( QtGui.QWidget ): #==========================================
def __init__( self, parent, button):
super(Popup_Window, self ).__init__(parent)
self.setWindowFlags(QtCore.Qt.Popup)
self.button = button
self.parent = parent
self.setAttribute(QtCore.Qt.WA_DeleteOnClose)
#---- set layout key dimension ----
self.min_width = 100
self.frame_thick = 10
self.setFixedWidth(self.min_width)
#---- init GUI ----
self.installEventFilter(self)
self.create_gui()
self.create_layout()
self.create_connections()
self.move_UI()
self.line_edit.setFocus()
def create_gui( self ): #===================================================
self.my_label = QtGui.QLabel("default text")
self.my_label.setAlignment(QtCore.Qt.AlignRight)
self.line_edit = QtGui.QLineEdit()
self.line_edit.setAlignment(QtCore.Qt.AlignRight)
self.line_edit.setMaxLength( 50 )
def create_layout( self ): #================================================
button_layout = QtGui.QGridLayout()
button_layout.addWidget(self.my_label, 0, 0)
button_layout.addWidget(self.line_edit, 1, 0)
button_layout.setContentsMargins(self.frame_thick, self.frame_thick,
self.frame_thick, self.frame_thick)
self.setLayout(button_layout)
def create_connections(self): #=============================================
self.line_edit.textChanged.connect(self.line_edit_text_changed)
def line_edit_text_changed(self, text): #==================================
#---- set the text in label ----
self.my_label.setText(text)
#---- determine new width of popup ----
fm = self.line_edit.fontMetrics()
txtWidth = fm.boundingRect(text).width() + 10 # Padding to the left.
# Value is arbitrary.
newWidth = max(txtWidth + self.frame_thick * 2, self.min_width)
self.setFixedWidth(newWidth)
def eventFilter(self, source, event): #=====================================
if event.type() == QtCore.QEvent.WindowDeactivate:
self.close()
return QtGui.QWidget.eventFilter(self, source, event)
def resizeEvent(self, event): #=============================================
self.move_UI()
QtGui.QWidget.resizeEvent(self, event)
def move_UI(self): # =======================================================
y_btn = self.button.mapToGlobal(QtCore.QPoint(0, 0)).y()
x_win = self.parent.mapToGlobal(QtCore.QPoint(0, 0)).x()
w_pop = self.frameGeometry().width()
x = x_win - w_pop - 12 # 12 is an arbitrary value.
y = y_btn
self.move(QtCore.QPoint(x, y))
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
instance_1 = Tool_Window()
instance_1.show()
sys.exit(app.exec_())
这导致：
更新（2015-07-30）：弹出窗口缩小到内容的宽度
我已经扩展了示例，现在弹出窗口以最小值 100 开始，当文本宽度超过此值时会扩展。此外，如果删除文本，弹出窗口的宽度将缩小到最小值 100。
这是通过计算 QLineEdit 中文本的宽度来完成的，当它的内容发生变化时，并使用该值为方法 window 中的弹出窗口分配固定宽度 line_edit_text_changed .
我在 window 的边缘创建了弹出窗口，我希望它在用户输入文本字段时扩展弹出窗口。这目前有效，但 window 正在向右扩展。相反，我希望弹出窗口向左扩展（并保持右边缘固定到位）。
我最接近的例子如下所示。在其中，我通过每个文本输入获取弹出窗口的大小，然后根据其新大小移动弹出窗口。我觉得这应该有效，但事实并非如此。
在输入第一个文本时，弹出窗口跳到我屏幕的左边缘（仅限 x 转换）。在第二个文本输入上，弹出窗口跳回其原始位置。在第三个文本输入时，弹出窗口跳回到屏幕的左边缘。在第四个输入...你明白了。我还想提一下，window 的整体增长看起来像是从弹出窗口的中心而不是右边缘增长。
我注意到单击按钮后它会一直突出显示，直到我的鼠标经过它。这会导致问题吗？
任何想法或更好的方法来实现这种效果都会很棒，谢谢！
from PySide import QtCore, QtGui
import maya.OpenMayaUI as mui
from shiboken import wrapInstance
def get_parent():
ptr = mui.MQtUtil.mainWindow()
return wrapInstance( long( ptr ), QtGui.QWidget )
############################################
class Tool_Window(QtGui.QDialog):
def __init__(self, parent = get_parent() ):
super(Tool_Window, self).__init__(parent)
# Commands
self.move_UI()
self.create_gui()
self.create_layout()
self.create_connections()
#-------------------------------------------
def create_gui(self):
self.button1 = QtGui.QPushButton()
self.button1.setMaximumWidth(50)
self.button2 = QtGui.QPushButton()
self.button2.setMaximumWidth(50)
self.button3 = QtGui.QPushButton()
self.button3.setMaximumWidth(50)
#-------------------------------------------
def create_layout(self):
layout = QtGui.QVBoxLayout()
layout.addWidget(self.button1)
layout.addWidget(self.button2)
layout.addWidget(self.button3)
blank_layout = QtGui.QVBoxLayout()
main_layout = QtGui.QHBoxLayout( self )
main_layout.addLayout(blank_layout)
main_layout.addLayout(layout)
layout.addStretch()
self.setLayout(layout)
#-------------------------------------------
def move_UI( self ):
''' Moves the UI to the cursor's position '''
pos = QtGui.QCursor.pos()
self.move(pos.x()+20, pos.y()+15)
#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#
def create_connections(self):
# Left click
self.button1.clicked.connect( self.on_left_click1 )
self.button2.clicked.connect( self.on_left_click2 )
self.button3.clicked.connect( self.on_left_click3 )
# Right click delete
delete = QtGui.QAction(self)
delete.setText("remove")
delete.triggered.connect(self.remove_button)
self.addAction(delete)
#-----#-----#-----#-----#-----#-----#-----#-----#-----#
def remove_button(self):
self.deleteLater()
def on_left_click1(self):
self.popup = Popup_Window( self, self.button1 ) # Passing button in so I can get it's position
self.popup.show()
def on_left_click2(self):
self.popup = Popup_Window( self, self.button2 )
self.popup.show()
def on_left_click3(self):
self.popup = Popup_Window( self, self.button3 )
self.popup.show()
############################################
class Popup_Window( QtGui.QDialog ):
def __init__( self, toolWindow, button ):
super( Popup_Window, self ).__init__()
self.__popup_filter = ClosePopupFilter()
self.installEventFilter(self.__popup_filter)
self.setWindowFlags(QtCore.Qt.Popup)
'''
self.setWindowFlags(QtCore.Qt.FramelessWindowHint |
QtCore.Qt.WindowStaysOnTopHint |
QtCore.Qt.CustomizeWindowHint |
QtCore.Qt.Tool)
'''
self.button_pos = button
self.toolWindow = toolWindow
self.setAttribute( QtCore.Qt.WA_DeleteOnClose )
self.resize(100, 100)
# Commands
self.create_gui()
self.create_layout()
self.create_connections()
self.move_UI()
#-------------------------------------------
def move_UI( self ): # Method that I use to place the popup window initially
self.line_edit.setFocus()
# Get button position
self.btn_global_point = self.button_pos.mapToGlobal(self.button_pos.rect().topLeft())
print self.btn_global_point
# Get window position
self.win_global_point = self.toolWindow.mapToGlobal(self.rect().topLeft())
print self.win_global_point
# Get popup Size
self.popup_size = self.mapToGlobal(self.rect().topRight())
print self.popup_size
# Move the window
self.move((self.win_global_point.x()-self.popup_size.x()), self.btn_global_point.y())
#-------------------------------------------
def create_gui( self ):
''' Visible GUI stuff '''
self.my_label = QtGui.QLabel("default text")
self.line_edit = QtGui.QLineEdit()
self.line_edit.setMaxLength( 30 )
self.push_btn = QtGui.QPushButton( "Hey" )
self.push_btn.setMaximumWidth( 30 )
#-------------------------------------------
def create_layout( self ):
self.button_layout = QtGui.QVBoxLayout()
self.button_layout.addWidget( self.my_label )
self.button_layout.addWidget( self.line_edit )
self.button_layout.addWidget( self.push_btn )
#self.button_layout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self.button_layout)
#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#
def create_connections( self ):
self.line_edit.textChanged.connect( self.on_text_changed )
#-----#-----#-----#-----#-----#-----#-----#-----#-----#
def on_text_changed( self ):
typed_name = self.line_edit.text()
self.my_label.setText(typed_name)
self.move_UI() # I reuse the move method to move the ui on text edit
############################################
class ClosePopupFilter(QtCore.QObject):
''' Close popup window '''
def eventFilter(self, target, event):
if event.type() == QtCore.QEvent.WindowDeactivate:
target.close()
return False
if __name__ == '__main__':
# Things to fix PySide Maya bug
try:
test_ui.close()
test_ui.deleteLater()
except:
pass
test_ui = Tool_Window()
test_ui.show()
try:
test_ui.show()
except:
test_ui.close()
test_ui.deleteLater()
我对您在 OP 中提供的代码进行了一些修改，并尝试整理一个示例来解决您的特定问题。
我对代码所做的一些修改：
- 触发
Popup_Window的resizeEvent内的move_UI； - 更正了
Popup_Window中的方法move_UI，这样弹出窗口就不会从一个位置闪烁到另一个位置； - 将
eventFilter直接移动到Popup_Window内； - 合并了
Tool_Window中处理 button.clicked.connect 事件的函数。
解决方案不完善，弹出window在Ubuntu中展开移动时还有一点'flicker'。然而，这在 Windows7 中不是很明显。如果我想到其他解决方案，我会进行更新。
from PySide import QtCore, QtGui
import sys
class Tool_Window(QtGui.QDialog): #=============================================
def __init__(self, parent=None):
super(Tool_Window, self).__init__(parent)
self.create_gui()
self.create_layout()
self.create_connections()
def create_gui(self): #=====================================================
self.button1 = QtGui.QPushButton('Button 1')
self.button2 = QtGui.QPushButton('Button 2')
self.button3 = QtGui.QPushButton('Button 3')
def create_layout(self): #==================================================
layout = QtGui.QVBoxLayout()
layout.addWidget(self.button1)
layout.addWidget(self.button2)
layout.addWidget(self.button3)
self.setLayout(layout)
def create_connections(self): #=============================================
self.button1.clicked.connect(self.on_lef_click )
self.button2.clicked.connect(self.on_lef_click )
self.button3.clicked.connect(self.on_lef_click )
def on_lef_click(self): #===================================================
button = self.sender()
self.popup = Popup_Window(self, button)
self.popup.show()
class Popup_Window( QtGui.QWidget ): #==========================================
def __init__( self, parent, button):
super(Popup_Window, self ).__init__(parent)
self.setWindowFlags(QtCore.Qt.Popup)
self.button = button
self.parent = parent
self.setAttribute(QtCore.Qt.WA_DeleteOnClose)
#---- set layout key dimension ----
self.min_width = 100
self.frame_thick = 10
self.setFixedWidth(self.min_width)
#---- init GUI ----
self.installEventFilter(self)
self.create_gui()
self.create_layout()
self.create_connections()
self.move_UI()
self.line_edit.setFocus()
def create_gui( self ): #===================================================
self.my_label = QtGui.QLabel("default text")
self.my_label.setAlignment(QtCore.Qt.AlignRight)
self.line_edit = QtGui.QLineEdit()
self.line_edit.setAlignment(QtCore.Qt.AlignRight)
self.line_edit.setMaxLength( 50 )
def create_layout( self ): #================================================
button_layout = QtGui.QGridLayout()
button_layout.addWidget(self.my_label, 0, 0)
button_layout.addWidget(self.line_edit, 1, 0)
button_layout.setContentsMargins(self.frame_thick, self.frame_thick,
self.frame_thick, self.frame_thick)
self.setLayout(button_layout)
def create_connections(self): #=============================================
self.line_edit.textChanged.connect(self.line_edit_text_changed)
def line_edit_text_changed(self, text): #==================================
#---- set the text in label ----
self.my_label.setText(text)
#---- determine new width of popup ----
fm = self.line_edit.fontMetrics()
txtWidth = fm.boundingRect(text).width() + 10 # Padding to the left.
# Value is arbitrary.
newWidth = max(txtWidth + self.frame_thick * 2, self.min_width)
self.setFixedWidth(newWidth)
def eventFilter(self, source, event): #=====================================
if event.type() == QtCore.QEvent.WindowDeactivate:
self.close()
return QtGui.QWidget.eventFilter(self, source, event)
def resizeEvent(self, event): #=============================================
self.move_UI()
QtGui.QWidget.resizeEvent(self, event)
def move_UI(self): # =======================================================
y_btn = self.button.mapToGlobal(QtCore.QPoint(0, 0)).y()
x_win = self.parent.mapToGlobal(QtCore.QPoint(0, 0)).x()
w_pop = self.frameGeometry().width()
x = x_win - w_pop - 12 # 12 is an arbitrary value.
y = y_btn
self.move(QtCore.QPoint(x, y))
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
instance_1 = Tool_Window()
instance_1.show()
sys.exit(app.exec_())
这导致：
更新（2015-07-30）：弹出窗口缩小到内容的宽度
我已经扩展了示例，现在弹出窗口以最小值 100 开始，当文本宽度超过此值时会扩展。此外，如果删除文本，弹出窗口的宽度将缩小到最小值 100。
这是通过计算 QLineEdit 中文本的宽度来完成的，当它的内容发生变化时，并使用该值为方法 window 中的弹出窗口分配固定宽度 line_edit_text_changed .