Merge pull request #51525 from elpaso/widgets-editable-data-defined

[Feature] Data defined form widget editable state.

python/core/auto_generated/editform/qgseditformconfig.sip.in

@@ -75,6 +75,7 @@ Constructor for TabData
       NoProperty,
       AllProperties,
       Alias,
+      Editable,
     };
 
     QgsEditFormConfig( const QgsEditFormConfig &o );

src/core/editform/qgseditformconfig.h

@@ -113,6 +113,7 @@ class CORE_EXPORT QgsEditFormConfig
       NoProperty = 0, //!< No property
       AllProperties = 1, //!< All properties for item
       Alias = 2, //!< Alias
+      Editable = 3, //!< Editable state \since QGIS 3.30
     };
 
     /**

src/core/editform/qgseditformconfig_p.h

@@ -64,6 +64,12 @@ class QgsEditFormConfigPrivate : public QSharedData
                                  QObject::tr( "Alias" ),
                                  QgsPropertyDefinition::String )
         },
+        {
+          QgsEditFormConfig::DataDefinedProperty::Editable,
+          QgsPropertyDefinition( "dataDefinedEditable",
+                                 QObject::tr( "Editable" ),
+                                 QgsPropertyDefinition::Boolean )
+        },
       };
       return sPropertyDefinitions;
     };

src/gui/attributeformconfig/qgsattributetypedialog.cpp

@@ -74,7 +74,16 @@ QgsAttributeTypeDialog::QgsAttributeTypeDialog( QgsVectorLayer *vl, int fieldIdx
   mExpressionWidget->registerExpressionContextGenerator( this );
   mExpressionWidget->setLayer( mLayer );
 
+  mEditableExpressionButton->registerExpressionContextGenerator( this );
+  mEditableExpressionButton->init( QgsEditFormConfig::DataDefinedProperty::Editable, mDataDefinedProperties.property( QgsEditFormConfig::DataDefinedProperty::Editable ), vl->editFormConfig().propertyDefinitions(), vl );
+  mEditableExpressionButton->registerLinkedWidget( isFieldEditableCheckBox );
+  connect( mEditableExpressionButton, &QgsPropertyOverrideButton::changed, this, [ = ]
+  {
+    mDataDefinedProperties.setProperty( QgsEditFormConfig::DataDefinedProperty::Editable, mEditableExpressionButton->toProperty() );
+  } );
+
   mAliasExpressionButton->registerExpressionContextGenerator( this );
+  mAliasExpressionButton->init( QgsEditFormConfig::DataDefinedProperty::Alias, mDataDefinedProperties.property( QgsEditFormConfig::DataDefinedProperty::Alias ), vl->editFormConfig().propertyDefinitions(), vl );
   connect( mAliasExpressionButton, &QgsPropertyOverrideButton::changed, this, [ = ]
   {
     mDataDefinedProperties.setProperty( QgsEditFormConfig::DataDefinedProperty::Alias, mAliasExpressionButton->toProperty() );
@@ -321,6 +330,7 @@ QgsExpressionContext QgsAttributeTypeDialog::createExpressionContext() const
       << QgsExpressionContextUtils::globalScope()
       << QgsExpressionContextUtils::projectScope( QgsProject::instance() )
       << QgsExpressionContextUtils::layerScope( mLayer )
+      << QgsExpressionContextUtils::formScope( )
       << QgsExpressionContextUtils::mapToolCaptureScope( QList<QgsPointLocator::Match>() );
 
   return context;
@@ -372,6 +382,10 @@ void QgsAttributeTypeDialog::setDataDefinedProperties( const QgsPropertyCollecti
   {
     mAliasExpressionButton->setToProperty( properties.property( QgsEditFormConfig::DataDefinedProperty::Alias ) );
   }
+  if ( properties.hasProperty( QgsEditFormConfig::DataDefinedProperty::Editable ) )
+  {
+    mEditableExpressionButton->setToProperty( properties.property( QgsEditFormConfig::DataDefinedProperty::Editable ) );
+  }
 }
 
 void QgsAttributeTypeDialog::setComment( const QString &comment )

src/gui/qgsattributeform.cpp

@@ -99,6 +99,7 @@ QgsAttributeForm::QgsAttributeForm( QgsVectorLayer *vl, const QgsFeature &featur
 
   updateContainersVisibility();
   updateLabels();
+  updateEditableState();
 
 }
 
@@ -1051,8 +1052,9 @@ void QgsAttributeForm::onAttributeChanged( const QVariant &value, const QVariant
     mAlreadyUpdatedFields.removeAll( eww->fieldIdx() );
   }
 
-  // Updates expression controlled labels
+  // Updates expression controlled labels and editable state
   updateLabels();
+  updateEditableState();
 
   // Update other widgets pointing to the same field
   const QList<QgsAttributeFormEditorWidget *> formEditorWidgets = mFormEditorWidgets.values( eww->fieldIdx() );
@@ -1196,6 +1198,29 @@ void QgsAttributeForm::updateLabels()
   }
 }
 
+void QgsAttributeForm::updateEditableState()
+{
+  if ( ! mEditableDataDefinedProperties.isEmpty() )
+  {
+    QgsFeature currentFeature;
+    if ( currentFormValuesFeature( currentFeature ) )
+    {
+      QgsExpressionContext context = createExpressionContext( currentFeature );
+
+      for ( auto it = mEditableDataDefinedProperties.constBegin() ; it != mEditableDataDefinedProperties.constEnd(); ++it )
+      {
+        QWidget *w { it.key() };
+        bool ok;
+        const bool isEditable { it->valueAsBool( context, true, &ok ) };
+        if ( ok )
+        {
+          w->setEnabled( isEditable );
+        }
+      }
+    }
+  }
+}
+
 bool QgsAttributeForm::currentFormValuesFeature( QgsFeature &feature )
 {
   bool rc = true;
@@ -1784,11 +1809,19 @@ void QgsAttributeForm::init()
             if ( mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).hasProperty( QgsEditFormConfig::DataDefinedProperty::Alias ) )
             {
               const QgsProperty property { mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).property( QgsEditFormConfig::DataDefinedProperty::Alias ) };
-              if ( property.isActive() && ! property.expressionString().isEmpty() )
+              if ( property.isActive() )
               {
                 mLabelDataDefinedProperties[ label ] = property;
               }
             }
+            if ( mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).hasProperty( QgsEditFormConfig::DataDefinedProperty::Editable ) )
+            {
+              const QgsProperty property { mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).property( QgsEditFormConfig::DataDefinedProperty::Editable ) };
+              if ( property.isActive() )
+              {
+                mEditableDataDefinedProperties[ widgetInfo.widget ] = property;
+              }
+            }
           }
         }
       }
@@ -1867,7 +1900,7 @@ void QgsAttributeForm::init()
       if ( mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).hasProperty( QgsEditFormConfig::DataDefinedProperty::Alias ) )
       {
         const QgsProperty property { mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).property( QgsEditFormConfig::DataDefinedProperty::Alias ) };
-        if ( property.isActive() && ! property.expressionString().isEmpty() )
+        if ( property.isActive() )
         {
           mLabelDataDefinedProperties[ label ] = property;
         }
@@ -1885,6 +1918,15 @@ void QgsAttributeForm::init()
         formWidget->createSearchWidgetWrappers( mContext );
 
         label->setBuddy( eww->widget() );
+
+        if ( mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).hasProperty( QgsEditFormConfig::DataDefinedProperty::Editable ) )
+        {
+          const QgsProperty property { mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).property( QgsEditFormConfig::DataDefinedProperty::Editable ) };
+          if ( property.isActive() )
+          {
+            mEditableDataDefinedProperties[ formWidget ] = property;
+          }
+        }
       }
       else
       {
@@ -2397,11 +2439,19 @@ QgsAttributeForm::WidgetInfo QgsAttributeForm::createWidgetFromDef( const QgsAtt
               if ( mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).hasProperty( QgsEditFormConfig::DataDefinedProperty::Alias ) )
               {
                 const QgsProperty property { mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).property( QgsEditFormConfig::DataDefinedProperty::Alias ) };
-                if ( property.isActive() && ! property.expressionString().isEmpty() )
+                if ( property.isActive() )
                 {
                   mLabelDataDefinedProperties[ mypLabel ] = property;
                 }
               }
+              if ( mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).hasProperty( QgsEditFormConfig::DataDefinedProperty::Editable ) )
+              {
+                const QgsProperty property { mLayer->editFormConfig().dataDefinedFieldProperties( fieldName ).property( QgsEditFormConfig::DataDefinedProperty::Editable ) };
+                if ( property.isActive() )
+                {
+                  mEditableDataDefinedProperties[ widgetInfo.widget ] = property;
+                }
+              }
             }
           }
 

src/gui/qgsattributeform.h

@@ -448,6 +448,7 @@ class GUI_EXPORT QgsAttributeForm : public QWidget
     void updateContainersVisibility();
     void updateConstraint( const QgsFeature &ft, QgsEditorWidgetWrapper *eww );
     void updateLabels();
+    void updateEditableState();
     bool currentFormValuesFeature( QgsFeature &feature );
     bool currentFormValidConstraints( QStringList &invalidFields, QStringList &descriptions ) const;
     bool currentFormValidHardConstraints( QStringList &invalidFields, QStringList &descriptions ) const;
@@ -473,6 +474,7 @@ class GUI_EXPORT QgsAttributeForm : public QWidget
     QList< QgsAttributeFormWidget *> mFormWidgets;
     QMap<const QgsVectorLayerJoinInfo *, QgsFeature> mJoinedFeatures;
     QMap<QLabel *, QgsProperty> mLabelDataDefinedProperties;
+    QMap<QWidget *, QgsProperty> mEditableDataDefinedProperties;
     bool mValuesInitialized = false;
     bool mDirty = false;
     bool mIsSettingFeature = false;

src/ui/attributeformconfig/qgsattributetypeedit.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>752</width>
+    <width>1033</width>
-    <height>620</height>
+    <height>880</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -19,14 +19,11 @@
      <property name="title">
       <string>General</string>
      </property>
-     <layout class="QGridLayout" name="gridLayout" rowstretch="0,0,0" columnstretch="0,0,1,0,0">
+     <layout class="QGridLayout" name="gridLayout" rowstretch="0,0,0" columnstretch="0,0,1,0,0,0">
-      <item row="2" column="1">
+      <item row="2" column="3">
-       <widget class="QCheckBox" name="reuseLastValuesCheckBox">
+       <widget class="QCheckBox" name="labelOnTopCheckBox">
-        <property name="toolTip">
-         <string>If checked, then the most recent value entered for this field will be remembered and reused when creating a new feature.</string>
-        </property>
         <property name="text">
-         <string>Reuse last entered value</string>
+         <string>Label on top</string>
         </property>
         <property name="checked">
          <bool>false</bool>
@@ -40,13 +37,13 @@
         </property>
        </widget>
       </item>
-      <item row="2" column="2">
+      <item row="1" column="2" colspan="3">
-       <widget class="QCheckBox" name="labelOnTopCheckBox">
+       <widget class="QLabel" name="laComment">
         <property name="text">
-         <string>Label on top</string>
+         <string/>
         </property>
-        <property name="checked">
+        <property name="wordWrap">
-         <bool>false</bool>
+         <bool>true</bool>
         </property>
        </widget>
       </item>
@@ -60,6 +57,26 @@
         </property>
        </widget>
       </item>
+      <item row="0" column="5">
+       <widget class="QgsPropertyOverrideButton" name="mAliasExpressionButton">
+        <property name="text">
+         <string>...</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="2">
+       <widget class="QCheckBox" name="reuseLastValuesCheckBox">
+        <property name="toolTip">
+         <string>If checked, then the most recent value entered for this field will be remembered and reused when creating a new feature.</string>
+        </property>
+        <property name="text">
+         <string>Reuse last entered value</string>
+        </property>
+        <property name="checked">
+         <bool>false</bool>
+        </property>
+       </widget>
+      </item>
       <item row="0" column="0">
        <widget class="QLabel" name="label_9">
         <property name="text">
@@ -67,23 +84,13 @@
         </property>
        </widget>
       </item>
-      <item row="0" column="4">
+      <item row="0" column="2" colspan="3">
-       <widget class="QgsPropertyOverrideButton" name="mAliasExpressionButton">
-        <property name="text">
-         <string>...</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="1" colspan="3">
        <widget class="QLineEdit" name="mAlias"/>
       </item>
-      <item row="1" column="1" colspan="3">
+      <item row="2" column="1">
-       <widget class="QLabel" name="laComment">
+       <widget class="QgsPropertyOverrideButton" name="mEditableExpressionButton">
         <property name="text">
-         <string/>
+         <string>...</string>
-        </property>
-        <property name="wordWrap">
-         <bool>true</bool>
         </property>
        </widget>
       </item>
@@ -330,6 +337,7 @@
  </tabstops>
  <resources>
   <include location="../../../images/images.qrc"/>
+  <include location="../../../images/images.qrc"/>
  </resources>
  <connections/>
 </ui>