feat(ICCProfile): Add an action to save an ICC profile file

python/PyQt6/core/auto_generated/qgscolorutils.sip.in

@@ -95,6 +95,16 @@ message
 .. versionadded:: 3.40
 %End
 
+    static QString saveIccProfile( const QColorSpace &colorSpace, const QString &iccProfileFilePath );
+%Docstring
+Save color space ``colorSpace`` to an ICC profile file ``iccProfileFilePath``.
+
+:return: error message if an error occurred else empty string.
+
+.. versionadded:: 3.40
+%End
+
+
 
 
 

python/core/auto_generated/qgscolorutils.sip.in

@@ -95,6 +95,16 @@ message
 .. versionadded:: 3.40
 %End
 
+    static QString saveIccProfile( const QColorSpace &colorSpace, const QString &iccProfileFilePath );
+%Docstring
+Save color space ``colorSpace`` to an ICC profile file ``iccProfileFilePath``.
+
+:return: error message if an error occurred else empty string.
+
+.. versionadded:: 3.40
+%End
+
+
 
 
 

src/app/qgsprojectproperties.cpp

@@ -138,6 +138,7 @@ QgsProjectProperties::QgsProjectProperties( QgsMapCanvas *mapCanvas, QWidget *pa
 #if QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
   connect( mAddIccProfile, &QToolButton::clicked, this, static_cast<void ( QgsProjectProperties::* )()>( &QgsProjectProperties::addIccProfile ) );
   connect( mRemoveIccProfile, &QToolButton::clicked, this, &QgsProjectProperties::removeIccProfile );
+  connect( mSaveIccProfile, &QToolButton::clicked, this, &QgsProjectProperties::saveIccProfile );
 #endif
 
   // QgsOptionsDialogBase handles saving/restoring of geometry, splitter and current tab states,
@@ -1042,6 +1043,7 @@ QgsProjectProperties::QgsProjectProperties( QgsMapCanvas *mapCanvas, QWidget *pa
   mColorSpaceName->setVisible( false );
   mAddIccProfile->setVisible( false );
   mRemoveIccProfile->setVisible( false );
+  mSaveIccProfile->setVisible( false );
 #endif
   // Default alpha transparency
   mDefaultOpacityWidget->setOpacity( QgsProject::instance()->styleSettings()->defaultSymbolOpacity() );
@@ -2736,10 +2738,27 @@ void QgsProjectProperties::removeIccProfile()
   updateColorSpaceWidgets();
 }
 
+void QgsProjectProperties::saveIccProfile()
+{
+  QString fileName = QFileDialog::getSaveFileName( this, tr( "Save ICC profile" ), QDir::homePath(),
+                     tr( "ICC profile files (*.icc *.ICC)" ) );
+
+  if ( fileName.isEmpty() )
+    return;
+
+  const QString error = QgsColorUtils::saveIccProfile( mColorSpace, fileName );
+  if ( !error.isEmpty() )
+  {
+    QMessageBox::warning( this, tr( "Save ICC profile" ), error );
+  }
+}
+
+
 void QgsProjectProperties::updateColorSpaceWidgets()
 {
   mColorSpaceName->setText( mColorSpace.isValid() ? mColorSpace.description() : tr( "<i>None</i>" ) );
   mRemoveIccProfile->setEnabled( mColorSpace.isValid() );
+  mSaveIccProfile->setEnabled( mColorSpace.isValid() );
 
   // force color model index according to color space one
   if ( mColorSpace.isValid() )

src/app/qgsprojectproperties.h

@@ -222,6 +222,11 @@ class APP_EXPORT QgsProjectProperties : public QgsOptionsDialogBase, private Ui:
      */
     void removeIccProfile();
 
+    /**
+     * Called whenever user select the save ICC profile button
+     */
+    void saveIccProfile();
+
     /**
      * Update color space widget according to current project color space
      */

src/core/qgscolorutils.cpp

@@ -377,6 +377,22 @@ QColorSpace QgsColorUtils::iccProfile( const QString &iccProfileFilePath, QStrin
   return colorSpace;
 }
 
+
+QString QgsColorUtils::saveIccProfile( const QColorSpace &colorSpace, const QString &iccProfileFilePath )
+{
+  if ( !colorSpace.isValid() )
+    return QObject::tr( "Invalid ICC profile" );
+
+  QFile iccProfile( iccProfileFilePath );
+  if ( !iccProfile.open( QIODevice::WriteOnly ) )
+    return QObject::tr( "File access error '%1'" ).arg( iccProfileFilePath );
+
+  if ( iccProfile.write( colorSpace.iccProfile() ) < 0 )
+    return QObject::tr( "Error while writing to file '%1'" ).arg( iccProfileFilePath );
+
+  return QString();
+}
+
 #if QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
 
 Qgis::ColorModel QgsColorUtils::toColorModel( QColorSpace::ColorModel colorModel, bool *ok )

src/core/qgscolorutils.h

@@ -108,6 +108,15 @@ class CORE_EXPORT QgsColorUtils
      */
     static QColorSpace iccProfile( const QString &iccProfileFilePath, QString &errorMsg SIP_OUT );
 
+    /**
+     * Save color space \a colorSpace to an ICC profile file \a iccProfileFilePath.
+     * \returns error message if an error occurred else empty string.
+     *
+     * \since QGIS 3.40
+     */
+    static QString saveIccProfile( const QColorSpace &colorSpace, const QString &iccProfileFilePath );
+
+
 #if QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
 
     /**

src/ui/qgsprojectpropertiesbase.ui

@@ -1500,17 +1500,45 @@
               <string notr="true">projstyles</string>
              </property>
              <layout class="QGridLayout" name="gridLayout_4">
-              <item row="6" column="0" colspan="3">
+              <item row="1" column="0">
-               <widget class="QCheckBox" name="cbxStyleRandomColors">
+               <widget class="QLabel" name="mIccProfileLabel">
                 <property name="text">
-                 <string>Assign random colors to symbols</string>
+                 <string>ICC Profile</string>
                 </property>
                </widget>
               </item>
-              <item row="0" column="0">
+              <item row="3" column="0">
-               <widget class="QLabel" name="label_14">
+               <widget class="QLabel" name="label_27">
                 <property name="text">
-                 <string>Color model</string>
+                 <string>Opacity</string>
+                </property>
+               </widget>
+              </item>
+              <item row="3" column="1" colspan="4">
+               <widget class="QgsOpacityWidget" name="mDefaultOpacityWidget" native="true">
+                <property name="focusPolicy">
+                 <enum>Qt::StrongFocus</enum>
+                </property>
+               </widget>
+              </item>
+              <item row="1" column="4">
+               <widget class="QToolButton" name="mAddIccProfile">
+                <property name="toolTip">
+                 <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Load an ICC profile file and attach it to the project.&lt;/p&gt;&lt;p&gt;Color model will be updated accordingly.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+                </property>
+                <property name="text">
+                 <string/>
+                </property>
+                <property name="icon">
+                 <iconset resource="../../images/images.qrc">
+                  <normaloff>:/images/themes/default/mActionFileOpen.svg</normaloff>:/images/themes/default/mActionFileOpen.svg</iconset>
+                </property>
+               </widget>
+              </item>
+              <item row="0" column="1" colspan="4">
+               <widget class="QComboBox" name="mColorModel">
+                <property name="toolTip">
+                 <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Color model used as default when selecting a color in the whole application.&lt;/p&gt;&lt;p&gt;Any color defined in a different color model than the one specified here will be converted to this color model when exporting a layout.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
                 </property>
                </widget>
               </item>
@@ -1535,45 +1563,31 @@
                 </property>
                </widget>
               </item>
-              <item row="3" column="0">
+              <item row="0" column="0">
-               <widget class="QLabel" name="label_27">
+               <widget class="QLabel" name="label_14">
                 <property name="text">
-                 <string>Opacity</string>
+                 <string>Color model</string>
                 </property>
                </widget>
               </item>
-              <item row="1" column="0">
+              <item row="6" column="0" colspan="3">
-               <widget class="QLabel" name="mIccProfileLabel">
+               <widget class="QCheckBox" name="cbxStyleRandomColors">
                 <property name="text">
-                 <string>ICC Profile</string>
+                 <string>Assign random colors to symbols</string>
                 </property>
                </widget>
               </item>
               <item row="1" column="3">
-               <widget class="QToolButton" name="mAddIccProfile">
+               <widget class="QToolButton" name="mSaveIccProfile">
                 <property name="toolTip">
-                 <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Load an ICC profile file and attach it to the project.&lt;/p&gt;&lt;p&gt;Color model will be updated accordingly.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+                 <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Save ICC profile&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
                 </property>
                 <property name="text">
                  <string/>
                 </property>
                 <property name="icon">
                  <iconset resource="../../images/images.qrc">
-                  <normaloff>:/images/themes/default/mActionFileOpen.svg</normaloff>:/images/themes/default/mActionFileOpen.svg</iconset>
+                  <normaloff>:/images/themes/default/mActionFileSave.svg</normaloff>:/images/themes/default/mActionFileSave.svg</iconset>
-                </property>
-               </widget>
-              </item>
-              <item row="0" column="1" colspan="3">
-               <widget class="QComboBox" name="mColorModel">
-                <property name="toolTip">
-                 <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Color model used as default when selecting a color in the whole application.&lt;/p&gt;&lt;p&gt;Any color defined in a different color model than the one specified here will be converted to this color model when exporting a layout.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-                </property>
-               </widget>
-              </item>
-              <item row="3" column="1" colspan="3">
-               <widget class="QgsOpacityWidget" name="mDefaultOpacityWidget" native="true">
-                <property name="focusPolicy">
-                 <enum>Qt::StrongFocus</enum>
                 </property>
                </widget>
               </item>

tests/src/app/testqgsprojectproperties.cpp

@@ -272,6 +272,7 @@ void TestQgsProjectProperties::testColorSettings()
 #else
   QVERIFY( !pp->mRemoveIccProfile->isVisible() );
   QVERIFY( !pp->mAddIccProfile->isVisible() );
+  QVERIFY( !pp->mSaveIccProfile->isVisible() );
   QVERIFY( !pp->mColorSpaceName->isVisible() );
   QVERIFY( !pp->mIccProfileLabel->isVisible() );
 #endif

tests/src/python/test_qgscolorutils.py

@@ -9,11 +9,18 @@ __author__ = 'Nyall Dawson'
 __date__ = '06/07/2022'
 __copyright__ = 'Copyright 2022, The QGIS Project'
 
+import os
+
+from qgis.PyQt.QtCore import QTemporaryDir
 from qgis.PyQt.QtGui import QColor
 from qgis.PyQt.QtXml import QDomDocument
 from qgis.core import QgsColorUtils, QgsReadWriteContext, QgsSymbolLayerUtils
 from qgis.testing import unittest
 
+from utilities import unitTestDataPath
+
+TEST_DATA_DIR = unitTestDataPath()
+
 
 class TestQgsColorUtils(unittest.TestCase):
 
@@ -288,6 +295,21 @@ class TestQgsColorUtils(unittest.TestCase):
         self.assertAlmostEqual(res.blue(), 23, delta=1)
         self.assertEqual(res.alpha(), 220)
 
+    def test_icc_profile(self):
+        """
+        Test ICC profile load and save method
+        """
+
+        iccProfileFilePath = os.path.join(TEST_DATA_DIR, "sRGB2014.icc")
+        colorSpace, errorMsg = QgsColorUtils.iccProfile(iccProfileFilePath)
+        self.assertTrue(colorSpace.isValid())
+
+        tmpDir = QTemporaryDir()
+        tmpFile = f"{tmpDir.path()}/test.icc"
+
+        error = QgsColorUtils.saveIccProfile(colorSpace, tmpFile)
+        self.assertTrue(not error)
+
 
 if __name__ == '__main__':
     unittest.main()