Qt开发笔记（创建并发布第一个桌面App）

#1 Qt项目结构

#2 设计App布局

#3 事件及信号槽

#4 发布App

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#1 Qt项目结构

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#项目配置文件，项目名.pro

#Qt界面功能区

#2 设计App布局

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<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>Dialog</class>
 <widget class="QDialog" name="Dialog">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>490</width>
    <height>307</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Dialog</string>
  </property>
  <layout class="QVBoxLayout" name="verticalLayout">
   <item>
    <widget class="QGroupBox" name="groupBox">
     <property name="title">
      <string/>
     </property>
     <layout class="QHBoxLayout" name="horizontalLayout">
      <item>
       <widget class="QCheckBox" name="checkBoxUnderline">
        <property name="font">
         <font>
          <family>AniMe Matrix - MB_EN</family>
          <pointsize>12</pointsize>
         </font>
        </property>
        <property name="text">
         <string>Underline</string>
        </property>
       </widget>
      </item>
      <item>
       <widget class="QCheckBox" name="checkBoxBold">
        <property name="font">
         <font>
          <family>AniMe Matrix - MB_EN</family>
          <pointsize>12</pointsize>
         </font>
        </property>
        <property name="text">
         <string>Bold</string>
        </property>
       </widget>
      </item>
      <item>
       <widget class="QCheckBox" name="checkBoxItalic">
        <property name="font">
         <font>
          <family>AniMe Matrix - MB_EN</family>
          <pointsize>12</pointsize>
         </font>
        </property>
        <property name="text">
         <string>Italic</string>
        </property>
       </widget>
      </item>
     </layout>
    </widget>
   </item>
   <item>
    <widget class="QGroupBox" name="groupBox_2">
     <property name="title">
      <string/>
     </property>
     <layout class="QHBoxLayout" name="horizontalLayout_2">
      <item>
       <widget class="QRadioButton" name="radioButtonRed">
        <property name="font">
         <font>
          <family>AniMe Matrix - MB_EN</family>
          <pointsize>12</pointsize>
         </font>
        </property>
        <property name="text">
         <string>Red</string>
        </property>
       </widget>
      </item>
      <item>
       <widget class="QRadioButton" name="radioButtonBlue">
        <property name="font">
         <font>
          <family>AniMe Matrix - MB_EN</family>
          <pointsize>12</pointsize>
         </font>
        </property>
        <property name="text">
         <string>Blue</string>
        </property>
       </widget>
      </item>
      <item>
       <widget class="QRadioButton" name="radioButtonGreen">
        <property name="enabled">
         <bool>true</bool>
        </property>
        <property name="font">
         <font>
          <family>AniMe Matrix - MB_EN</family>
          <pointsize>12</pointsize>
         </font>
        </property>
        <property name="text">
         <string>Green</string>
        </property>
       </widget>
      </item>
     </layout>
    </widget>
   </item>
   <item>
    <widget class="QPlainTextEdit" name="plainTextEdit">
     <property name="font">
      <font>
       <family>AniMe Matrix - MB_EN</family>
       <pointsize>16</pointsize>
      </font>
     </property>
     <property name="plainText">
      <string>Hello World!
狸花猫侠</string>
     </property>
    </widget>
   </item>
   <item>
    <layout class="QHBoxLayout" name="horizontalLayout_3">
     <item>
      <spacer name="horizontalSpacer_2">
       <property name="orientation">
        <enum>Qt::Horizontal</enum>
       </property>
       <property name="sizeHint" stdset="0">
        <size>
         <width>40</width>
         <height>20</height>
        </size>
       </property>
      </spacer>
     </item>
     <item>
      <widget class="QPushButton" name="pushButtonOk">
       <property name="text">
        <string>确定</string>
       </property>
      </widget>
     </item>
     <item>
      <widget class="QPushButton" name="pushButtonCancel">
       <property name="text">
        <string>取消</string>
       </property>
      </widget>
     </item>
     <item>
      <spacer name="horizontalSpacer">
       <property name="orientation">
        <enum>Qt::Horizontal</enum>
       </property>
       <property name="sizeHint" stdset="0">
        <size>
         <width>60</width>
         <height>20</height>
        </size>
       </property>
      </spacer>
     </item>
     <item>
      <widget class="QPushButton" name="pushButtonExit">
       <property name="text">
        <string>退出</string>
       </property>
      </widget>
     </item>
    </layout>
   </item>
  </layout>
 </widget>
 <resources/>
 <connections>
  <connection>
   <sender>pushButtonExit</sender>
   <signal>clicked()</signal>
   <receiver>Dialog</receiver>
   <slot>close()</slot>
   <hints>
    <hint type="sourcelabel">
     <x>552</x>
     <y>332</y>
    </hint>
    <hint type="destinationlabel">
     <x>317</x>
     <y>197</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>pushButtonOk</sender>
   <signal>clicked()</signal>
   <receiver>Dialog</receiver>
   <slot>accept()</slot>
   <hints>
    <hint type="sourcelabel">
     <x>234</x>
     <y>332</y>
    </hint>
    <hint type="destinationlabel">
     <x>317</x>
     <y>197</y>
    </hint>
   </hints>
  </connection>
  <connection>
   <sender>pushButtonCancel</sender>
   <signal>clicked()</signal>
   <receiver>Dialog</receiver>
   <slot>reject()</slot>
   <hints>
    <hint type="sourcelabel">
     <x>315</x>
     <y>332</y>
    </hint>
    <hint type="destinationlabel">
     <x>317</x>
     <y>197</y>
    </hint>
   </hints>
  </connection>
 </connections>
</ui>

#3 事件及信号槽

方式一，使用预设的信号槽功能

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—-

方式二，代码指定+半生成

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—–

方式三，手动connect信号槽事件

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#关键源码

void Dialog::on_checkBoxItalic_toggled(bool checked)
{
    QFont fnt = ui->plainTextEdit->font();
    fnt.setItalic(checked);
    ui->plainTextEdit->setFont(fnt);
}

void Dialog::OnRadioButtonChecked()
{
    QPalette pale = ui->plainTextEdit->palette();
    if(ui->radioButtonRed->isChecked())
    {
        pale.setColor(QPalette::Text, Qt::red);
    }
    else if(ui->radioButtonGreen->isChecked())
    {
        pale.setColor(QPalette::Text, Qt::green);
    }
    else if(ui->radioButtonBlue->isChecked())
    {
        pale.setColor(QPalette::Text, Qt::blue);
    }
    else
    {
        pale.setColor(QPalette::Text, Qt::black);
    }
    ui->plainTextEdit->setPalette(pale);
}

#4 发布App

需要先配置了mingw32环境变量

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发布Release版本不要选择
Shadow build

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项目下载地址

链接：https://pan.baidu.com/s/16z8yAkhuXTOwmZP1CVTkDg?pwd=2023

提取码：2023

https://www.bilibili.com/video/BV1AX4y1w7Nt?p=5&spm_id_from=pageDriver&vd_source=fd1266ed4a0212bdcf69dd1b6752e13d

P4

http://c.biancheng.net/view/3868.html

原文链接：https://blog.csdn.net/inspironx/article/details/130695085

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