工具栏中带有QAction的Qt QAction

Question

我试图在设计器模式下的工具栏中使用QActionGroup按钮制作一个QAction。

目标是只点击一个按钮。我遵循这个例子，https://doc.qt.io/qt-5/qactiongroup.html#details，但它并不使我的按钮排他性。我还试着强迫alignmentGroup.setExclusive(true);

mainwindow.cpp，以MainWindow::MainWindow(QWidget *父)

        alignmentGroup.addAction(ui->actionUsePointer);
        alignmentGroup.addAction(ui->actionMoveView);
        alignmentGroup.addAction(ui->actionEditText);
        ui->actionUsePointer->setChecked(true); 

我的ui设计器对象

我遵循了这个示例，但是当我单击actionUsePointer时，我可以检查所有的按钮，而不需要取消第一个按钮.

编辑这里是mainwindow.ui

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>1098</width>
    <height>815</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>FSM Editor</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <layout class="QGridLayout" name="gridLayout_2">
    <item row="1" column="0">
     <layout class="QHBoxLayout" name="horizontalLayout_4">
      <item>
       <widget class="QSplitter" name="splitter">
        <property name="orientation">
         <enum>Qt::Horizontal</enum>
        </property>
        <widget class="QGraphicsView" name="graphicsView">
         <property name="styleSheet">
          <string notr="true">background-color:grey;</string>
         </property>
        </widget>
        <widget class="QTextBrowser" name="textBrowser">
         <property name="maximumSize">
          <size>
           <width>300</width>
           <height>16777215</height>
          </size>
         </property>
        </widget>
       </widget>
      </item>
     </layout>
    </item>
   </layout>
  </widget>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>1098</width>
     <height>22</height>
    </rect>
   </property>
   <property name="nativeMenuBar">
    <bool>false</bool>
   </property>
   <widget class="QMenu" name="menuFichier">
    <property name="title">
     <string>Fichier</string>
    </property>
    <addaction name="actionOuvrir"/>
    <addaction name="actionR_cemment_ouvert"/>
    <addaction name="actionEnregistrer"/>
    <addaction name="actionEnregistrer_sous"/>
   </widget>
   <widget class="QMenu" name="menu_dition">
    <property name="title">
     <string>Édition</string>
    </property>
    <addaction name="actionAnnuler"/>
    <addaction name="actionRevenir"/>
   </widget>
   <widget class="QMenu" name="menuBackground">
    <property name="title">
     <string>Background</string>
    </property>
    <addaction name="actionAucun"/>
    <addaction name="actionQuadrillage"/>
   </widget>
   <addaction name="menuFichier"/>
   <addaction name="menu_dition"/>
   <addaction name="menuBackground"/>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
  <widget class="QToolBar" name="toolBar">
   <property name="windowTitle">
    <string>toolBar</string>
   </property>
   <attribute name="toolBarArea">
    <enum>TopToolBarArea</enum>
   </attribute>
   <attribute name="toolBarBreak">
    <bool>false</bool>
   </attribute>
   <addaction name="actionUsePointer"/>
   <addaction name="actionMoveView"/>
   <addaction name="actionEditText"/>
   <addaction name="separator"/>
   <addaction name="actionShowEditor"/>
  </widget>
  <action name="actionOuvrir">
   <property name="icon">
    <iconset resource="icons.qrc">
     <normaloff>:/img/folder-open.png</normaloff>:/img/folder-open.png</iconset>
   </property>
   <property name="text">
    <string>Ouvrir...</string>
   </property>
  </action>
  <action name="actionR_cemment_ouvert">
   <property name="text">
    <string>Récemment ouvert</string>
   </property>
  </action>
  <action name="actionEnregistrer">
   <property name="text">
    <string>Enregistrer</string>
   </property>
  </action>
  <action name="actionEnregistrer_sous">
   <property name="text">
    <string>Enregistrer sous</string>
   </property>
  </action>
  <action name="actionAnnuler">
   <property name="text">
    <string>Annuler</string>
   </property>
  </action>
  <action name="actionRevenir">
   <property name="text">
    <string>Revenir</string>
   </property>
  </action>
  <action name="actionUsePointer">
   <property name="checkable">
    <bool>true</bool>
   </property>
   <property name="enabled">
    <bool>true</bool>
   </property>
   <property name="icon">
    <iconset resource="icons.qrc">
     <normaloff>:/img/mouse-pointer.png</normaloff>:/img/mouse-pointer.png</iconset>
   </property>
   <property name="text">
    <string>UsePointer</string>
   </property>
   <property name="iconVisibleInMenu">
    <bool>true</bool>
   </property>
  </action>
  <action name="actionMoveView">
   <property name="checkable">
    <bool>true</bool>
   </property>
   <property name="icon">
    <iconset resource="icons.qrc">
     <normaloff>:/img/arrows.png</normaloff>:/img/arrows.png</iconset>
   </property>
   <property name="text">
    <string>moveView</string>
   </property>
  </action>
  <action name="actionEditText">
   <property name="checkable">
    <bool>true</bool>
   </property>
   <property name="icon">
    <iconset resource="icons.qrc">
     <normaloff>:/img/i-cursor.png</normaloff>:/img/i-cursor.png</iconset>
   </property>
   <property name="text">
    <string>EditText</string>
   </property>
  </action>
  <action name="actionAucun">
   <property name="text">
    <string>Aucun</string>
   </property>
  </action>
  <action name="actionQuadrillage">
   <property name="text">
    <string>Quadrillage</string>
   </property>
  </action>
  <action name="actionShowEditor">
   <property name="text">
    <string>Afficher l'XML</string>
   </property>
  </action>
 </widget>
 <resources>
  <include location="icons.qrc"/>
 </resources>
 <connections/>
</ui>

编辑2 : --我不是疯了，表单编辑器中缺少了动作组特性：https://forum.qt.io/topic/27282/qt-creator-2-7-x-creating-action-groups-in-form-editor/2

Answer 1

我用这个解决了我的问题：https://forum.qt.io/topic/27282/qt-creator-2-7-x-creating-action-groups-in-form-editor/3

GUI似乎不允许在视觉上添加ActionGroup，因此您必须触摸原始的.xml ui。

我用文本编辑器而不是图形编辑器打开mainwindow.ui，并在里面创建了ActionGroup (我称之为GroupTool)，其中包含了所有的操作。

<actiongroup name="GroupTool">
   <action name="actionUsePointer">
    <property name="checkable">
     <bool>true</bool>
    </property>
    <property name="enabled">
     <bool>true</bool>
    </property>
    <property name="icon">
     <iconset resource="icons.qrc">
      <normaloff>:/img/mouse-pointer.png</normaloff>:/img/mouse-pointer.png</iconset>
    </property>
    <property name="text">
     <string>UsePointer</string>
    </property>
    <property name="autoRepeat">
     <bool>true</bool>
    </property>
    <property name="iconVisibleInMenu">
     <bool>true</bool>
    </property>
   </action>
   <action name="actionMoveView">
    <property name="checkable">
     <bool>true</bool>
    </property>
    <property name="icon">
     <iconset resource="icons.qrc">
      <normaloff>:/img/arrows.png</normaloff>:/img/arrows.png</iconset>
    </property>
    <property name="text">
     <string>moveView</string>
    </property>
   </action>
   <action name="actionEditText">
    <property name="checkable">
     <bool>true</bool>
    </property>
    <property name="icon">
     <iconset resource="icons.qrc">
      <normaloff>:/img/i-cursor.png</normaloff>:/img/i-cursor.png</iconset>
    </property>
    <property name="text">
     <string>EditText</string>
    </property>
   </action>
  </actiongroup>

最后在mainwindow.cpp中：

ui->GroupTool->setExclusive(true);

Answer 2

问题中链接的示例大部分是它，使用来自Qt设计器的表单需要一个小的调整。

诀窍是，您可以在Qt设计器创建操作之后将操作添加到QActionGroup中。

在表单头文件(mainwindow.h)中，添加一个: QActionGroup *groupTool；

在连接信号/插槽的MainWindow构造函数中，创建操作组，向其添加操作，并将其设置为独占：

groupTool = new QActionGroup(this);
groupTool.addAction(ui->actionUsePointer);
...
groupTool.setExclusive(true);

在Qt设计中：

• 将每个操作的checkable属性设置为true。
• 为其中一个操作将选中的属性设置为true。