每当我在 APP GUI 中单击任何地方时，打印困难（"ok"）

Question

我使用 QT Designer 设计了一个 GUI，然后我通过以下方式将 .ui 文件导入到我的 python 代码中：

ui_file = QFile(ui_file)
        ui_file.open(QFile.ReadOnly)
        loader = QUiLoader()
        self.window = loader.load(ui_file)
        ui_file.close()

一切正常，当我运行 python 代码时，GUI 确实出现并且起作用然而，我在实现功能时遇到困难："I want to print("ok") 每当我点击 GUI" 上的任意点时。这是我的代码：

import sys
from PySide2.QtUiTools import QUiLoader
from PySide2.QtWidgets import QApplication, QComboBox, QCheckBox, QLabel, QPushButton, QFrame, QAction, QDesktopWidget, QTabWidget, QMainWindow, QWidget
from PySide2.QtCore import QFile, QObject,Qt, QPoint
from PySide2 import QtCore, QtGui

class MyApp(QObject):
    def __init__(self, ui_file, parent=None):
        super(MyApp, self).__init__(parent)
        ui_file = QFile(ui_file)
        ui_file.open(QFile.ReadOnly)
        loader = QUiLoader()
        self.window = loader.load(ui_file)
        ui_file.close()
        self.window.setWindowFlags(QtCore.Qt.FramelessWindowHint)
        self.window.show()

    def mousePressEvent(self, event):    
        print("ok")

if __name__ == '__main__':
    app = QApplication(sys.argv)
    form = MyApp('GUI.ui')
    sys.exit(app.exec_())

这里是 UI 文件：PS。制作一个新的 GUI.ui 文件并用记事本编辑它并添加以下代码，您将拥有我的 GUI.ui 文件：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="windowModality">
   <enum>Qt::NonModal</enum>
  </property>
  <property name="enabled">
   <bool>true</bool>
  </property>
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>497</width>
    <height>488</height>
   </rect>
  </property>
  <property name="sizePolicy">
   <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
    <horstretch>0</horstretch>
    <verstretch>0</verstretch>
   </sizepolicy>
  </property>
  <property name="contextMenuPolicy">
   <enum>Qt::DefaultContextMenu</enum>
  </property>
  <property name="windowTitle">
   <string>Pirates Online Hub</string>
  </property>
  <property name="windowIcon">
   <iconset>
    <normaloff>Icon.ico</normaloff>Icon.ico</iconset>
  </property>
  <property name="autoFillBackground">
   <bool>false</bool>
  </property>
  <property name="toolButtonStyle">
   <enum>Qt::ToolButtonIconOnly</enum>
  </property>
  <property name="documentMode">
   <bool>false</bool>
  </property>
  <property name="tabShape">
   <enum>QTabWidget::Rounded</enum>
  </property>
  <property name="dockNestingEnabled">
   <bool>false</bool>
  </property>
  <property name="unifiedTitleAndToolBarOnMac">
   <bool>false</bool>
  </property>
  <property name="setSizeGripEnabled" stdset="0">
   <bool>true</bool>
  </property>
  <property name="QMainWindow.setSizeGripEnabled" stdset="0">
   <bool>false</bool>
  </property>
  <widget class="QWidget" name="centralwidget">
   <widget class="QTabWidget" name="tabWidget">
    <property name="geometry">
     <rect>
      <x>0</x>
      <y>0</y>
      <width>501</width>
      <height>491</height>
     </rect>
    </property>
    <property name="font">
     <font>
      <family>Open Sans Semibold</family>
      <weight>75</weight>
      <bold>true</bold>
     </font>
    </property>
    <property name="autoFillBackground">
     <bool>false</bool>
    </property>
    <property name="styleSheet">
     <string notr="true">QTabBar { qproperty-drawBase: 0; }


QTabWidget::tab-bar
{
    left: px;
    alignment: left;

}

QTabBar::tab
{
    background: transparent;
    color: #757575;
    padding: 15px 5px 15px 5px;
    border: 2px solid #000000;
}

QTabBar::tab:hover
{
    text-decoration: dunderline;

}

QTabBar::tab:selected
{
    color: #DEF600;
    background: qlineargradient( x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #262626, stop: 1.0 #3D3D3D );
    text-decoration: underline;
}

QTabBar::tab:!selected
{
    color: #DEF600;
    background: qlineargradient( x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #262626, stop: 1.0 #3D3D3D );
}

QTabBar::tab {
    /* expand/overlap to the left and right by 4px */
    margin-left:  1px;
    margin-right: 1px;
}</string>
    </property>
    <property name="tabPosition">
     <enum>QTabWidget::North</enum>
    </property>
    <property name="tabShape">
     <enum>QTabWidget::Rounded</enum>
    </property>
    <property name="currentIndex">
     <number>0</number>
    </property>
    <property name="elideMode">
     <enum>Qt::ElideNone</enum>
    </property>
    <property name="documentMode">
     <bool>true</bool>
    </property>
    <property name="tabsClosable">
     <bool>false</bool>
    </property>
    <property name="movable">
     <bool>false</bool>
    </property>
    <property name="tabBarAutoHide">
     <bool>false</bool>
    </property>
    <widget class="QWidget" name="tab">
     <property name="cursor">
      <cursorShape>ArrowCursor</cursorShape>
     </property>
     <attribute name="title">
      <string>Fairy Coins</string>
     </attribute>
     <widget class="QLabel" name="label">
      <property name="geometry">
       <rect>
        <x>200</x>
        <y>5</y>
        <width>87</width>
        <height>26</height>
       </rect>
      </property>
      <property name="font">
       <font>
        <family>Open Sans Semibold</family>
        <pointsize>14</pointsize>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>Slot Spins</string>
      </property>
      <property name="alignment">
       <set>Qt::AlignCenter</set>
      </property>
     </widget>
     <widget class="QComboBox" name="comboBox">
      <property name="geometry">
       <rect>
        <x>210</x>
        <y>65</y>
        <width>51</width>
        <height>22</height>
       </rect>
      </property>
      <property name="editable">
       <bool>true</bool>
      </property>
     </widget>
     <widget class="QLabel" name="label_2">
      <property name="geometry">
       <rect>
        <x>159</x>
        <y>100</y>
        <width>331</width>
        <height>26</height>
       </rect>
      </property>
      <property name="font">
       <font>
        <family>Open Sans Semibold</family>
        <pointsize>14</pointsize>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="inputMethodHints">
       <set>Qt::ImhNone</set>
      </property>
      <property name="text">
       <string>One Row:       0</string>
      </property>
      <property name="textFormat">
       <enum>Qt::PlainText</enum>
      </property>
     </widget>
     <widget class="QLabel" name="label_3">
      <property name="geometry">
       <rect>
        <x>119</x>
        <y>130</y>
        <width>371</width>
        <height>26</height>
       </rect>
      </property>
      <property name="font">
       <font>
        <family>Open Sans Semibold</family>
        <pointsize>14</pointsize>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>        Two Rows:     0</string>
      </property>
     </widget>
     <widget class="QLabel" name="label_4">
      <property name="geometry">
       <rect>
        <x>156</x>
        <y>160</y>
        <width>331</width>
        <height>26</height>
       </rect>
      </property>
      <property name="font">
       <font>
        <family>Open Sans Semibold</family>
        <pointsize>14</pointsize>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>Three Rows:   0</string>
      </property>
     </widget>
     <widget class="QLabel" name="label_9">
      <property name="geometry">
       <rect>
        <x>210</x>
        <y>208</y>
        <width>87</width>
        <height>26</height>
       </rect>
      </property>
      <property name="font">
       <font>
        <family>Open Sans Semibold</family>
        <pointsize>14</pointsize>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>Stall Price</string>
      </property>
      <property name="alignment">
       <set>Qt::AlignCenter</set>
      </property>
     </widget>
     <widget class="QComboBox" name="comboBox_3">
      <property name="geometry">
       <rect>
        <x>180</x>
        <y>280</y>
        <width>71</width>
        <height>22</height>
       </rect>
      </property>
      <property name="editable">
       <bool>true</bool>
      </property>
     </widget>
     <widget class="QLabel" name="label_10">
      <property name="geometry">
       <rect>
        <x>140</x>
        <y>58</y>
        <width>81</width>
        <height>31</height>
       </rect>
      </property>
      <property name="font">
       <font>
        <family>Open Sans Semibold</family>
        <pointsize>11</pointsize>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>Amount:</string>
      </property>
     </widget>
     <widget class="QLabel" name="label_11">
      <property name="geometry">
       <rect>
        <x>110</x>
        <y>274</y>
        <width>81</width>
        <height>31</height>
       </rect>
      </property>
      <property name="font">
       <font>
        <family>Open Sans Semibold</family>
        <pointsize>11</pointsize>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>Amount:</string>
      </property>
     </widget>
     <widget class="QLabel" name="label_12">
      <property name="geometry">
       <rect>
        <x>130</x>
        <y>310</y>
        <width>121</width>
        <height>31</height>
       </rect>
      </property>
      <property name="font">
       <font>
        <family>Open Sans Semibold</family>
        <pointsize>11</pointsize>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>Price:</string>
      </property>
     </widget>
     <widget class="QComboBox" name="comboBox_4">
      <property name="geometry">
       <rect>
        <x>180</x>
        <y>316</y>
        <width>71</width>
        <height>22</height>
       </rect>
      </property>
      <property name="editable">
       <bool>true</bool>
      </property>
     </widget>
     <widget class="QComboBox" name="comboBox_5">
      <property name="geometry">
       <rect>
        <x>260</x>
        <y>280</y>
        <width>81</width>
        <height>22</height>
       </rect>
      </property>
      <item>
       <property name="text">
        <string>Pieces</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>Stacks</string>
       </property>
      </item>
     </widget>
     <widget class="QComboBox" name="comboBox_10">
      <property name="geometry">
       <rect>
        <x>260</x>
        <y>316</y>
        <width>81</width>
        <height>22</height>
       </rect>
      </property>
      <item>
       <property name="text">
        <string>Per Piece</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>Per Stack</string>
       </property>
      </item>
     </widget>
     <widget class="QLabel" name="label_21">
      <property name="geometry">
       <rect>
        <x>200</x>
        <y>390</y>
        <width>281</width>
        <height>51</height>
       </rect>
      </property>
      <property name="font">
       <font>
        <pointsize>14</pointsize>
       </font>
      </property>
      <property name="text">
       <string>Gold: 0</string>
      </property>
     </widget>
     <widget class="QComboBox" name="comboBox_16">
      <property name="geometry">
       <rect>
        <x>250</x>
        <y>360</y>
        <width>69</width>
        <height>22</height>
       </rect>
      </property>
      <property name="currentIndex">
       <number>0</number>
      </property>
      <item>
       <property name="text">
        <string> Gold (g)</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string> Kilo (k)</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string> Million (m)</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string> Billion (b)</string>
       </property>
      </item>
     </widget>
     <widget class="QLabel" name="label_31">
      <property name="geometry">
       <rect>
        <x>170</x>
        <y>363</y>
        <width>121</width>
        <height>16</height>
       </rect>
      </property>
      <property name="font">
       <font>
        <family>Open Sans Semibold</family>
        <pointsize>11</pointsize>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>Price Unit:</string>
      </property>
     </widget>
     <widget class="QComboBox" name="comboBox_23">
      <property name="geometry">
       <rect>
        <x>270</x>
        <y>64</y>
        <width>61</width>
        <height>22</height>
       </rect>
      </property>
      <property name="editable">
       <bool>false</bool>
      </property>
      <item>
       <property name="text">
        <string>Pieces</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>Stacks</string>
       </property>
      </item>
     </widget>
     <widget class="Line" name="line">
      <property name="geometry">
       <rect>
        <x>-20</x>
        <y>190</y>
        <width>561</width>
        <height>16</height>
       </rect>
      </property>
      <property name="frameShadow">
       <enum>QFrame::Plain</enum>
      </property>
      <property name="lineWidth">
       <number>2</number>
      </property>
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
     </widget>
     <widget class="Line" name="line_3">
      <property name="geometry">
       <rect>
        <x>-40</x>
        <y>430</y>
        <width>561</width>
        <height>16</height>
       </rect>
      </property>
      <property name="frameShadow">
       <enum>QFrame::Plain</enum>
      </property>
      <property name="lineWidth">
       <number>2</number>
      </property>
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
     </widget>
    </widget>
    <widget class="QWidget" name="tab_2">
     <attribute name="title">
      <string>Skills</string>
     </attribute>
    </widget>
   </widget>
   <widget class="QLabel" name="label_5">
    <property name="geometry">
     <rect>
      <x>0</x>
      <y>0</y>
      <width>971</width>
      <height>881</height>
     </rect>
    </property>
    <property name="styleSheet">
     <string notr="true">background-color:qradialgradient(spread:reflect, cx:0.5, cy:0.5, radius:0.5, fx:0.511364, fy:0.506, stop:0 rgba(24, 132, 214, 255), stop:1 rgba(109, 187, 238, 255))</string>
    </property>
    <property name="text">
     <string/>
    </property>
   </widget>
   <widget class="Line" name="line_2">
    <property name="geometry">
     <rect>
      <x>0</x>
      <y>-7</y>
      <width>561</width>
      <height>16</height>
     </rect>
    </property>
    <property name="frameShadow">
     <enum>QFrame::Plain</enum>
    </property>
    <property name="lineWidth">
     <number>2</number>
    </property>
    <property name="orientation">
     <enum>Qt::Horizontal</enum>
    </property>
   </widget>
   <widget class="Line" name="line_4">
    <property name="geometry">
     <rect>
      <x>-9</x>
      <y>0</y>
      <width>20</width>
      <height>1001</height>
     </rect>
    </property>
    <property name="frameShadow">
     <enum>QFrame::Plain</enum>
    </property>
    <property name="lineWidth">
     <number>2</number>
    </property>
    <property name="orientation">
     <enum>Qt::Vertical</enum>
    </property>
   </widget>
   <widget class="Line" name="line_5">
    <property name="geometry">
     <rect>
      <x>486</x>
      <y>0</y>
      <width>20</width>
      <height>1001</height>
     </rect>
    </property>
    <property name="frameShadow">
     <enum>QFrame::Plain</enum>
    </property>
    <property name="lineWidth">
     <number>2</number>
    </property>
    <property name="orientation">
     <enum>Qt::Vertical</enum>
    </property>
   </widget>
   <widget class="QPushButton" name="pushButton_2">
    <property name="geometry">
     <rect>
      <x>467</x>
      <y>1</y>
      <width>30</width>
      <height>23</height>
     </rect>
    </property>
    <property name="font">
     <font>
      <family>Terminal</family>
      <pointsize>14</pointsize>
      <weight>75</weight>
      <bold>true</bold>
     </font>
    </property>
    <property name="styleSheet">
     <string notr="true">background: transparent; color:rgb(49, 49, 49)</string>
    </property>
    <property name="text">
     <string>X</string>
    </property>
   </widget>
   <zorder>label_5</zorder>
   <zorder>tabWidget</zorder>
   <zorder>line_2</zorder>
   <zorder>line_4</zorder>
   <zorder>line_5</zorder>
   <zorder>pushButton_2</zorder>
  </widget>
 </widget>
 <resources/>
 <connections/>
</ui>

Answer 1

MyApp 不是小部件，因此 mousePressEvent 不存在，window 更少。所以在这些情况下你应该使用事件过滤器：

import sys
from PySide2 import QtCore, QtWidgets, QtUiTools

class MyApp(QtCore.QObject):
    def __init__(self, ui_file, parent=None):
        super(MyApp, self).__init__(parent)
        ui_file = QtCore.QFile(ui_file)
        if ui_file.open(QtCore.QFile.ReadOnly):
            loader = QtUiTools.QUiLoader()
            self.window = loader.load(ui_file)
            self.window.installEventFilter(self)
            self.window.setWindowFlags(QtCore.Qt.FramelessWindowHint)
            self.window.show()

    def eventFilter(self, obj, event):
        if obj is self.window:
            if event.type() == QtCore.QEvent.MouseButtonPress:
                print("ok")
        return super(MyApp, self).eventFilter(obj, event)

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    form = MyApp('GUI.ui')
    sys.exit(app.exec_())

每当我在 APP GUI 中单击任何地方时，打印困难（"ok"）

difficulty in print("ok") whenever I click anywhere in the APP GUI

python

qt-designer

pyside2