Correct text alignment preservation and add basic options parsing

Also add a test case and Remove some dead code along the way.

Task-number: QDS-2071
Change-Id: If34d4e152860ec9ab098f07e36e3a5dc4368c67f
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

6 files changed, 302 insertions, 57 deletions

diff --git a/src/plugins/qmldesigner/designercore/include/stylesheetmerger.h b/src/plugins/qmldesigner/designercore/include/stylesheetmerger.h
index f752e50419..d6a27d2af7 100644
--- a/src/plugins/qmldesigner/designercore/include/stylesheetmerger.h
+++ b/src/plugins/qmldesigner/designercore/include/stylesheetmerger.h
@@ -41,6 +41,7 @@ struct ReparentInfo {
     bool alreadyReparented;
 };
 
+
 class StylesheetMerger {
 public:
     StylesheetMerger(AbstractView*, AbstractView*);
@@ -60,11 +61,21 @@ private:
     void syncBindingProperties(ModelNode &outputNode, const ModelNode &inputNode);
     void syncAuxiliaryProperties(ModelNode &outputNode, const ModelNode &inputNode);
     void syncVariantProperties(ModelNode &outputNode, const ModelNode &inputNode);
+    void parseTemplateOptions();
 
     AbstractView *m_templateView;
     AbstractView *m_styleView;
     QHash<QString, ReparentInfo> m_reparentInfoHash;
     QHash<QString, QString> m_idReplacementHash;
+
+    struct Options {
+        bool preserveTextAlignment;
+        Options() : preserveTextAlignment(false)
+        {}
+    };
+
+    Options m_options;
+
 };
 
 }
diff --git a/src/plugins/qmldesigner/designercore/model/stylesheetmerger.cpp b/src/plugins/qmldesigner/designercore/model/stylesheetmerger.cpp
index fa6dccaf10..9c08053fdd 100644
--- a/src/plugins/qmldesigner/designercore/model/stylesheetmerger.cpp
+++ b/src/plugins/qmldesigner/designercore/model/stylesheetmerger.cpp
@@ -39,6 +39,42 @@
 #include <QQueue>
 #include <QRegularExpression>
 
+namespace {
+
+QPoint pointForModelNode(const QmlDesigner::ModelNode &node)
+{
+    int x = 0;
+    if (node.hasVariantProperty("x"))
+        x = node.variantProperty("x").value().toInt();
+
+    int y = 0;
+    if (node.hasVariantProperty("y"))
+        y = node.variantProperty("y").value().toInt();
+
+    return QPoint(x, y);
+}
+
+QPoint parentPosition(const QmlDesigner::ModelNode &node)
+{
+    QPoint p;
+
+    QmlDesigner::ModelNode currentNode = node;
+    while (currentNode.hasParentProperty()) {
+        currentNode = currentNode.parentProperty().parentModelNode();
+        p += pointForModelNode(currentNode);
+    }
+
+    return p;
+}
+
+bool isTextAlignmentProperty(const QmlDesigner::VariantProperty &property)
+{
+    return property.name() == "horizontalAlignment"
+                || property.name() == "verticalAlignment"
+                || property.name() == "elide";
+}
+} // namespace
+
 namespace QmlDesigner {
 
 static void splitIdInBaseNameAndNumber(const QString &id, QString *baseId, int *number)
@@ -139,15 +175,18 @@ void StylesheetMerger::setupIdRenamingHash()
 ModelNode StylesheetMerger::createReplacementNode(const ModelNode& styleNode, ModelNode &modelNode)
 {
     QList<QPair<PropertyName, QVariant> > propertyList;
-    QList<QPair<PropertyName, QVariant> > variantPropertyList;
+    QList<QPair<PropertyName, QVariant> > auxPropertyList;
     NodeMetaInfo nodeMetaInfo = m_templateView->model()->metaInfo(styleNode.type());
 
     for (const VariantProperty &variantProperty : modelNode.variantProperties()) {
-        if (nodeMetaInfo.hasProperty(variantProperty.name()))
-            propertyList.append(QPair<PropertyName, QVariant>(variantProperty.name(), variantProperty.value()));
+        if (!nodeMetaInfo.hasProperty(variantProperty.name()))
+            continue;
+        if (isTextAlignmentProperty(variantProperty) && !m_options.preserveTextAlignment && !styleNode.hasProperty(variantProperty.name()))
+            continue;
+        propertyList.append(QPair<PropertyName, QVariant>(variantProperty.name(), variantProperty.value()));
     }
     ModelNode newNode(m_templateView->createModelNode(styleNode.type(), nodeMetaInfo.majorVersion(), nodeMetaInfo.minorVersion(),
-                                                      propertyList, variantPropertyList, styleNode.nodeSource(), styleNode.nodeSourceType()));
+                                                      propertyList, auxPropertyList, styleNode.nodeSource(), styleNode.nodeSourceType()));
 
     syncAuxiliaryProperties(newNode, modelNode);
     syncBindingProperties(newNode, modelNode);
@@ -169,32 +208,6 @@ bool StylesheetMerger::idExistsInBothModels(const QString& id)
     return m_templateView->hasId(id) && m_styleView->hasId(id);
 }
 
-QPoint pointForModelNode(const ModelNode &node)
-{
-    int x = 0;
-    if (node.hasVariantProperty("x"))
-        x = node.variantProperty("x").value().toInt();
-
-    int y = 0;
-    if (node.hasVariantProperty("y"))
-        y = node.variantProperty("y").value().toInt();
-
-    return QPoint(x, y);
-}
-
-QPoint parentPosition(const ModelNode &node)
-{
-    QPoint p;
-
-    ModelNode currentNode = node;
-    while (currentNode.hasParentProperty()) {
-        currentNode = currentNode.parentProperty().parentModelNode();
-        p += pointForModelNode(currentNode);
-    }
-
-    return p;
-}
-
 void StylesheetMerger::preprocessStyleSheet()
 {
     try {
@@ -350,7 +363,11 @@ void StylesheetMerger::applyStyleProperties(ModelNode &templateNode, const Model
                 templateNode.variantProperty(variantProperty.name()).setValue(variantProperty.value());
             }
         } else {
-            templateNode.variantProperty(variantProperty.name()).setValue(variantProperty.value());
+            if (variantProperty.holdsEnumeration()) {
+                templateNode.variantProperty(variantProperty.name()).setEnumeration(variantProperty.enumeration().toEnumerationName());
+            } else {
+                templateNode.variantProperty(variantProperty.name()).setValue(variantProperty.value());
+            }
         }
     }
     syncBindingProperties(templateNode, styleNode);
@@ -365,12 +382,43 @@ static void removePropertyIfExists(ModelNode node, const PropertyName &propertyN
 
 }
 
+void StylesheetMerger::parseTemplateOptions()
+{
+    if (!m_templateView->hasId(QStringLiteral("qds_stylesheet_merger_options")))
+        return;
+
+    ModelNode optionsNode = m_templateView->modelNodeForId(QStringLiteral("qds_stylesheet_merger_options"));
+    if (optionsNode.hasVariantProperty("preserveTextAlignment")) {
+        m_options.preserveTextAlignment = optionsNode.variantProperty("preserveTextAlignment").value().toBool();
+    }
+    try {
+        RewriterTransaction transaction(m_templateView, "remove-options-node");
+        optionsNode.destroy();
+        transaction.commit();
+    } catch (InvalidIdException &ide) {
+        qDebug().noquote() << "Invalid id exception while removing options from template.";
+        ide.createWarning();
+    } catch (InvalidReparentingException &rpe) {
+        qDebug().noquote() << "Invalid reparenting exception while removing options from template.";
+        rpe.createWarning();
+    } catch (InvalidModelNodeException &mne) {
+        qDebug().noquote() << "Invalid model node exception while removing options from template.";
+        mne.createWarning();
+    } catch (Exception &e) {
+        qDebug().noquote() << "Exception while removing options from template.";
+        e.createWarning();
+    }
+}
+
 void StylesheetMerger::merge()
 {
     ModelNode templateRootNode = m_templateView->rootModelNode();
     ModelNode styleRootNode = m_styleView->rootModelNode();
 
-    // first, build up the hierarchy in the style sheet as we have it in the template
+    // first, look if there are any options present in the template
+    parseTemplateOptions();
+
+    // second, build up the hierarchy in the style sheet as we have it in the template
     preprocessStyleSheet();
 
     // build a hash of generated replacement ids
diff --git a/tests/auto/qml/qmldesigner/coretests/tst_testcore.cpp b/tests/auto/qml/qmldesigner/coretests/tst_testcore.cpp
index dcac5310fc..c99805152c 100644
--- a/tests/auto/qml/qmldesigner/coretests/tst_testcore.cpp
+++ b/tests/auto/qml/qmldesigner/coretests/tst_testcore.cpp
@@ -3706,23 +3706,6 @@ void tst_TestCore::testCopyModelRewriter1()
     QCOMPARE(textEdit1.toPlainText(), expected);
 }
 
-static void adjustPreservedProperties(const ModelNode& replacedNode, ModelNode& newNode) {
-    QSet<PropertyName> preservedProperties;
-    preservedProperties.insert("x");
-    preservedProperties.insert("y");
-    preservedProperties.insert("width");
-    preservedProperties.insert("height");
-    preservedProperties.insert("anchors");
-   // preservedProperties.insert("text ");
-
-    for (VariantProperty originalProperty : replacedNode.variantProperties()) {
-        VariantProperty prop;
-        if (preservedProperties.contains(originalProperty.name())) {
-            newNode.variantProperty(originalProperty.name()).setValue(originalProperty.value());
-        }
-    }
-}
-
 static QString readQmlFromFile(const QString& fileName)
 {
     QFile qmlFile(fileName);
@@ -3776,6 +3759,9 @@ void tst_TestCore::testMergeModelRewriter1_data()
     QString buttonStyleUiQmlContents = readQmlFromFile(QString(TESTSRCDIR) + "/../data/merging/ButtonStyle.ui.qml");
     QString buttonStyleUiExpectedQmlContents = readQmlFromFile(QString(TESTSRCDIR) + "/../data/merging/ButtonStyle.ui.Expected.qml");
 
+    QString buttonAbsoluteTemplateWithOptionsQmlContents = readQmlFromFile(QString(TESTSRCDIR) + "/../data/merging/ButtonAbsoluteTemplateWithOptions.qml");
+    QString buttonStyleUiWithOptionsExpectedQmlContents = readQmlFromFile(QString(TESTSRCDIR) + "/../data/merging/ButtonStyleWithOptions.ui.Expected.qml");
+
     QTest::newRow("Simple style replacement") << simpleTemplateQmlContents << simpleStyleQmlContents << simpleExpectedQmlContents;
     QTest::newRow("Complex style replacement") << complexTemplateQmlContents << complexStyleQmlContents << complexExpectedQmlContents;
     QTest::newRow("Empty stylesheet") << emptyTemplateQmlContents << emptyStyleQmlContents << emptyExpectedQmlContents;
@@ -3788,6 +3774,8 @@ void tst_TestCore::testMergeModelRewriter1_data()
     QTest::newRow("Button Outline styling") << buttonAbsoluteTemplateQmlContents << buttonOutlineStyleQmlContents << buttonOutlineExpectedQmlContents;
     QTest::newRow("Button Designer styling") << buttonAbsoluteTemplateQmlContents << buttonStyleUiQmlContents << buttonStyleUiExpectedQmlContents;
 
+    QTest::newRow("Button Designer styling with options") << buttonAbsoluteTemplateWithOptionsQmlContents << buttonStyleUiQmlContents << buttonStyleUiWithOptionsExpectedQmlContents;
+
 }
 
 void tst_TestCore::testMergeModelRewriter1()
diff --git a/tests/auto/qml/qmldesigner/data/merging/ButtonAbsoluteTemplateWithOptions.qml b/tests/auto/qml/qmldesigner/data/merging/ButtonAbsoluteTemplateWithOptions.qml
new file mode 100644
index 0000000000..de34e1ab0c
--- /dev/null
+++ b/tests/auto/qml/qmldesigner/data/merging/ButtonAbsoluteTemplateWithOptions.qml
@@ -0,0 +1,109 @@
+import QtQuick 2.10
+import QtQuick.Templates 2.1 as T
+
+T.Button {
+    id: control
+
+    implicitWidth: Math.max(
+                       background ? background.implicitWidth : 0,
+                       contentItem.implicitWidth + leftPadding + rightPadding)
+    implicitHeight: Math.max(
+                        background ? background.implicitHeight : 0,
+                        contentItem.implicitHeight + topPadding + bottomPadding)
+    leftPadding: 4
+    rightPadding: 4
+
+    text: "My Button"
+
+    background: Item {
+        implicitWidth: buttonNormal.width
+        implicitHeight: buttonNormal.height
+        opacity: enabled ? 1 : 0.3
+
+        Rectangle {
+
+            id: buttonNormal
+            color: "#d4d4d4"
+            width: 100 //Bit of black magic to define the default size
+            height: 40
+
+            border.color: "gray"
+            border.width: 1
+            radius: 2
+            anchors.fill: parent //binding has to be preserved
+
+            Text {
+                id: normalText
+                x: 26
+                y: 14 //id only required to preserve binding
+                text: control.text //binding has to be preserved
+                //anchors.fill: parent
+                color: "gray"
+
+                horizontalAlignment: Text.AlignHCenter
+                verticalAlignment: Text.AlignVCenter
+                elide: Text.ElideRight
+            }
+        }
+
+        Rectangle {
+            id: buttonPressed
+            color: "#d4d4d4"
+            width: 100 //Bit of black magic to define the default size
+            height: 40
+
+            border.color: "gray"
+            border.width: 1
+            radius: 2
+            anchors.fill: parent //binding has to be preserved
+
+            Text {
+                x: 26
+                y: 14
+                id: pressedText //id only required to preserve binding
+                text: control.text //binding has to be preserved
+                //anchors.fill: parent
+                color: "black"
+
+                horizontalAlignment: Text.AlignHCenter // should not be preserved
+                verticalAlignment: Text.AlignVCenter //  should not be preserved
+                elide: Text.ElideRight // should not be preserved
+            }
+        }
+    }
+
+    contentItem: Item {}
+
+    states: [
+        State {
+            name: "normal"
+            when: !control.down
+            PropertyChanges {
+                target: buttonPressed
+                visible: false
+            }
+            PropertyChanges {
+                target: buttonNormal
+                visible: true
+            }
+        },
+        State {
+            name: "down"
+            when: control.down
+            PropertyChanges {
+                target: buttonPressed
+                visible: true
+            }
+            PropertyChanges {
+                target: buttonNormal
+                visible: false
+            }
+        }
+    ]
+    QtObject {
+        id: qds_stylesheet_merger_options
+        property bool preserveTextAlignment: true
+    }
+
+}
+
diff --git a/tests/auto/qml/qmldesigner/data/merging/ButtonStyle.ui.Expected.qml b/tests/auto/qml/qmldesigner/data/merging/ButtonStyle.ui.Expected.qml
index 7faf527196..ab54caa5b1 100644
--- a/tests/auto/qml/qmldesigner/data/merging/ButtonStyle.ui.Expected.qml
+++ b/tests/auto/qml/qmldesigner/data/merging/ButtonStyle.ui.Expected.qml
@@ -32,11 +32,8 @@ T.Button {
                 y: 50
                 color: "#bbbbbb"
                 text: control.text
-                elide: Text.ElideRight
-                horizontalAlignment: Text.AlignHCenter
-                verticalAlignment: Text.AlignVCenter
-                font.pixelSize: 24
                 font.letterSpacing: 0.594
+                font.pixelSize: 24
             }
         }
 
@@ -52,11 +49,8 @@ T.Button {
                 y: 50
                 color: "#e1e1e1"
                 text: control.text
-                elide: Text.ElideRight
-                horizontalAlignment: Text.AlignHCenter
-                verticalAlignment: Text.AlignVCenter
-                font.pixelSize: 24
                 font.letterSpacing: 0.594
+                font.pixelSize: 24
             }
         }
 
diff --git a/tests/auto/qml/qmldesigner/data/merging/ButtonStyleWithOptions.ui.Expected.qml b/tests/auto/qml/qmldesigner/data/merging/ButtonStyleWithOptions.ui.Expected.qml
new file mode 100644
index 0000000000..580a5f1560
--- /dev/null
+++ b/tests/auto/qml/qmldesigner/data/merging/ButtonStyleWithOptions.ui.Expected.qml
@@ -0,0 +1,95 @@
+import QtQuick 2.10
+import QtQuick.Templates 2.1 as T
+
+T.Button {
+    id: control
+
+    implicitWidth: Math.max(
+                       background ? background.implicitWidth : 0,
+                       contentItem.implicitWidth + leftPadding + rightPadding)
+    implicitHeight: Math.max(
+                        background ? background.implicitHeight : 0,
+                        contentItem.implicitHeight + topPadding + bottomPadding)
+    leftPadding: 4
+    rightPadding: 4
+
+    text: "My Button"
+
+    background: Item {
+        implicitWidth: buttonNormal.width
+        implicitHeight: buttonNormal.height
+        opacity: enabled ? 1 : 0.3
+
+        Image {
+            id: buttonNormal
+            width: 100
+            height: 40
+            anchors.fill: parent
+            source: "assets/buttonNormal.png"
+            Text {
+                id: normalText
+                x: 58
+                y: 50
+                color: "#bbbbbb"
+                text: control.text
+                elide: Text.ElideRight
+                font.letterSpacing: 0.594
+                font.pixelSize: 24
+                horizontalAlignment: Text.AlignHCenter
+                verticalAlignment: Text.AlignVCenter
+            }
+        }
+
+        Image {
+            id: buttonPressed
+            width: 100
+            height: 40
+            anchors.fill: parent
+            source: "assets/buttonPressed.png"
+            Text {
+                id: pressedText
+                x: 58
+                y: 50
+                color: "#e1e1e1"
+                text: control.text
+                elide: Text.ElideRight
+                font.letterSpacing: 0.594
+                font.pixelSize: 24
+                horizontalAlignment: Text.AlignHCenter
+                verticalAlignment: Text.AlignVCenter
+            }
+        }
+
+    }
+
+    contentItem: Item {}
+
+    states: [
+        State {
+            name: "normal"
+            when: !control.down
+            PropertyChanges {
+                target: buttonPressed
+                visible: false
+            }
+            PropertyChanges {
+                target: buttonNormal
+                visible: true
+            }
+        },
+        State {
+            name: "down"
+            when: control.down
+            PropertyChanges {
+                target: buttonPressed
+                visible: true
+            }
+            PropertyChanges {
+                target: buttonNormal
+                visible: false
+            }
+        }
+    ]
+
+}
+