Qt Designer 修改窗体大小改变控件位置

一.新建一个窗体

用qt designer 新建一个QWidget窗体，在窗体中右键

选择布局，发现布局是选择不了的，这个是因为窗体里面没有添加控件，任意添加空间后便可选择 右键-- 布局-- 水平布局/垂直布局 等

二. 添加控件

我们添加一个group box 控件，然后右键选择布局 -- 垂直布局

在添加一个horizontalLayout，再给horizontalLayout里面添加两个button按钮

向group box 里面添加一个label 和 botton

然后在group box 的里面选择右键 -- 布局 -- 水平布局

三. 添加spacers效果

我们给group box 里面的两个控件直接添加一个horizontalSpacer

给group box 和horizontalLayout 直接添加一个verticalSpacer

在这里说明下spacers 缩放类型 sizeType

Expanding ：可自行增大和收缩

Fixed：不能放大或缩小

Minimum：不能小于sizeHint尺寸，可放大（若设置了最大尺寸）

Maximum：不能放大，可缩小到允许的最小尺寸（若setMinimumSize(10,10)只能缩小到（10，10））

Preferred：控件的sizeHint是他的Hint,可以放大或缩小

四. 生成ui与py

spacersLayouts.ui文件：

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 <ui version="4.0">
  3  <class>Form</class>
  4  <widget class="QWidget" name="Form">
  5   <property name="geometry">
  6    <rect>
  7     <x>0</x>
  8     <y>0</y>
  9     <width>518</width>
 10     <height>429</height>
 11    </rect>
 12   </property>
 13   <property name="windowTitle">
 14    <string>Form</string>
 15   </property>
 16   <layout class="QVBoxLayout" name="verticalLayout">
 17    <item>
 18     <widget class="QGroupBox" name="groupBox">
 19      <property name="minimumSize">
 20       <size>
 21        <width>0</width>
 22        <height>100</height>
 23       </size>
 24      </property>
 25      <property name="maximumSize">
 26       <size>
 27        <width>16777215</width>
 28        <height>200</height>
 29       </size>
 30      </property>
 31      <property name="title">
 32       <string>分组</string>
 33      </property>
 34      <layout class="QHBoxLayout" name="horizontalLayout">
 35       <item>
 36        <widget class="QLabel" name="label">
 37         <property name="text">
 38          <string>左侧</string>
 39         </property>
 40        </widget>
 41       </item>
 42       <item>
 43        <spacer name="horizontalSpacer_2">
 44         <property name="orientation">
 45          <enum>Qt::Horizontal</enum>
 46         </property>
 47         <property name="sizeHint" stdset="0">
 48          <size>
 49           <width>40</width>
 50           <height>20</height>
 51          </size>
 52         </property>
 53        </spacer>
 54       </item>
 55       <item>
 56        <widget class="QPushButton" name="pushButton_2">
 57         <property name="text">
 58          <string>右侧</string>
 59         </property>
 60        </widget>
 61       </item>
 62      </layout>
 63     </widget>
 64    </item>
 65    <item>
 66     <spacer name="verticalSpacer">
 67      <property name="orientation">
 68       <enum>Qt::Vertical</enum>
 69      </property>
 70      <property name="sizeType">
 71       <enum>QSizePolicy::Expanding</enum>
 72      </property>
 73      <property name="sizeHint" stdset="0">
 74       <size>
 75        <width>20</width>
 76        <height>100</height>
 77       </size>
 78      </property>
 79     </spacer>
 80    </item>
 81    <item>
 82     <layout class="QHBoxLayout" name="horizontalLayout_2">
 83      <property name="spacing">
 84       <number>6</number>
 85      </property>
 86      <item>
 87       <spacer name="horizontalSpacer">
 88        <property name="orientation">
 89         <enum>Qt::Horizontal</enum>
 90        </property>
 91        <property name="sizeHint" stdset="0">
 92         <size>
 93          <width>40</width>
 94          <height>20</height>
 95         </size>
 96        </property>
 97       </spacer>
 98      </item>
 99      <item>
100       <widget class="QPushButton" name="pushButton_3">
101        <property name="text">
102         <string>确定</string>
103        </property>
104       </widget>
105      </item>
106      <item>
107       <widget class="QPushButton" name="pushButton_4">
108        <property name="text">
109         <string>取消</string>
110        </property>
111       </widget>
112      </item>
113     </layout>
114    </item>
115   </layout>
116  </widget>
117  <resources/>
118  <connections/>
119 </ui>

生成的spacersLayouts.py 文件

 1 # -*- coding: utf-8 -*-
 2 
 3 # Form implementation generated from reading ui file 'spacersLayouts.ui'
 4 #
 5 # Created: Tue Mar 03 15:44:16 2015
 6 #      by: PyQt4 UI code generator 4.10.3
 7 #
 8 # WARNING! All changes made in this file will be lost!
 9 
10 from PyQt4 import QtCore, QtGui
11 
12 try:
13     _fromUtf8 = QtCore.QString.fromUtf8
14 except AttributeError:
15     def _fromUtf8(s):
16         return s
17 
18 try:
19     _encoding = QtGui.QApplication.UnicodeUTF8
20     def _translate(context, text, disambig):
21         return QtGui.QApplication.translate(context, text, disambig, _encoding)
22 except AttributeError:
23     def _translate(context, text, disambig):
24         return QtGui.QApplication.translate(context, text, disambig)
25 
26 class Ui_Form(object):
27     def setupUi(self, Form):
28         Form.setObjectName(_fromUtf8("Form"))
29         Form.resize(518, 429)
30         self.verticalLayout = QtGui.QVBoxLayout(Form)
31         self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))
32         self.groupBox = QtGui.QGroupBox(Form)
33         self.groupBox.setMinimumSize(QtCore.QSize(0, 100))
34         self.groupBox.setMaximumSize(QtCore.QSize(16777215, 200))
35         self.groupBox.setObjectName(_fromUtf8("groupBox"))
36         self.horizontalLayout = QtGui.QHBoxLayout(self.groupBox)
37         self.horizontalLayout.setObjectName(_fromUtf8("horizontalLayout"))
38         self.label = QtGui.QLabel(self.groupBox)
39         self.label.setObjectName(_fromUtf8("label"))
40         self.horizontalLayout.addWidget(self.label)
41         spacerItem = QtGui.QSpacerItem(40, 20, QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Minimum)
42         self.horizontalLayout.addItem(spacerItem)
43         self.pushButton_2 = QtGui.QPushButton(self.groupBox)
44         self.pushButton_2.setObjectName(_fromUtf8("pushButton_2"))
45         self.horizontalLayout.addWidget(self.pushButton_2)
46         self.verticalLayout.addWidget(self.groupBox)
47         spacerItem1 = QtGui.QSpacerItem(20, 100, QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Expanding)
48         self.verticalLayout.addItem(spacerItem1)
49         self.horizontalLayout_2 = QtGui.QHBoxLayout()
50         self.horizontalLayout_2.setSpacing(6)
51         self.horizontalLayout_2.setObjectName(_fromUtf8("horizontalLayout_2"))
52         spacerItem2 = QtGui.QSpacerItem(40, 20, QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Minimum)
53         self.horizontalLayout_2.addItem(spacerItem2)
54         self.pushButton_3 = QtGui.QPushButton(Form)
55         self.pushButton_3.setObjectName(_fromUtf8("pushButton_3"))
56         self.horizontalLayout_2.addWidget(self.pushButton_3)
57         self.pushButton_4 = QtGui.QPushButton(Form)
58         self.pushButton_4.setObjectName(_fromUtf8("pushButton_4"))
59         self.horizontalLayout_2.addWidget(self.pushButton_4)
60         self.verticalLayout.addLayout(self.horizontalLayout_2)
61 
62         self.retranslateUi(Form)
63         QtCore.QMetaObject.connectSlotsByName(Form)
64 
65     def retranslateUi(self, Form):
66         Form.setWindowTitle(_translate("Form", "Form", None))
67         self.groupBox.setTitle(_translate("Form", "分组", None))
68         self.label.setText(_translate("Form", "左侧", None))
69         self.pushButton_2.setText(_translate("Form", "右侧", None))
70         self.pushButton_3.setText(_translate("Form", "确定", None))
71         self.pushButton_4.setText(_translate("Form", "取消", None))
72 
73 
74 if __name__ == "__main__":
75     import sys
76     app = QtGui.QApplication(sys.argv)
77     Form = QtGui.QWidget()
78     ui = Ui_Form()
79     ui.setupUi(Form)
80     Form.show()
81     sys.exit(app.exec_())

效果：