feat: Handle QTextEdit in the ScriptDialogItem (#141)

Fixes #27
to use the syntax highlighting of the "data.foo" widget, just use the name of the extension like "cpp", "js" or "py" in the "data.fooSyntax" property

examples/ex_script_dialog.qml

@@ -26,6 +26,12 @@ ScriptDialog {
         // Defined the possible choices for the comboBoxfine
         data.comboBoxModel = ["1", "2", "3"]
         data.comboBox = "2"
+        // Initialize textEdit and plainTextEdit with example text and syntax
+        data.textEdit = "// Example C++ code\nint main() {\n    return 0;\n}"
+        data.textEditSyntax = "cpp"
+        data.plainTextEdit = "// Example JavaScript code\nfunction hello() {\n    console.log('Hello');\n}"
+        data.plainTextEditSyntax = "js"
+
     }
 
     function showData() {
@@ -36,6 +42,8 @@ ScriptDialog {
         Message.log("SpinBox data: " + data.spinBox)
         Message.log("DoubleSpinBox data: " + data.doubleSpinBox)
         Message.log("ComboBox data: " + data.comboBox)
+        Message.log("TextEdit data: " + data.textEdit)
+        Message.log("PlainTextEdit data: " + data.plainTextEdit)
     }
 
     // Function called when the user click on the OK button
@@ -46,21 +54,21 @@ ScriptDialog {
 
     // Function called when the user click on the Cancel button
     onRejected: {
-         // Logging when the Cancel button is clicked
+        // Logging when the Cancel button is clicked
         Message.log("Cancel button is clicked")
     }
 
     // Function called when a button is clicked
-    onClicked:(name)=>{
-        if (name == "pushButton"){
+    onClicked: (name) => {
+        if (name === "pushButton") {
             Message.log("PushButton is clicked")
-        }
-        else if (name == "toolButton"){
+        } else if (name === "toolButton") {
             Message.log("ToolButton is clicked")
         }
     }
     // Function to automatically test the script, useful for automated testing
     // It runs the script without user interaction
+
     function test_script() {
         showData();
         close();

examples/ex_script_dialog.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>407</width>
-    <height>374</height>
+    <width>291</width>
+    <height>471</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -28,6 +28,23 @@
      </property>
     </widget>
    </item>
+   <item row="1" column="0">
+    <widget class="QLabel" name="label_9">
+     <property name="text">
+      <string>toolButton</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QToolButton" name="toolButton">
+     <property name="enabled">
+      <bool>true</bool>
+     </property>
+     <property name="text">
+      <string>ToolButton</string>
+     </property>
+    </widget>
+   </item>
    <item row="2" column="0">
     <widget class="QLabel" name="label">
      <property name="text">
@@ -100,47 +117,37 @@
    <item row="7" column="1">
     <widget class="QComboBox" name="comboBox"/>
    </item>
-   <item row="8" column="1">
-    <spacer name="verticalSpacer">
-     <property name="orientation">
-      <enum>Qt::Vertical</enum>
-     </property>
-     <property name="sizeHint" stdset="0">
-      <size>
-       <width>20</width>
-       <height>249</height>
-      </size>
-     </property>
-    </spacer>
-   </item>
-   <item row="12" column="0">
+   <item row="11" column="0">
     <widget class="QLabel" name="label_3">
      <property name="text">
       <string>dialogButtonBox</string>
      </property>
     </widget>
    </item>
-   <item row="12" column="1">
+   <item row="11" column="1">
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="standardButtons">
       <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
      </property>
     </widget>
    </item>
-   <item row="1" column="1">
-    <widget class="QToolButton" name="toolButton">
-     <property name="enabled">
-      <bool>true</bool>
-     </property>
+   <item row="8" column="1">
+    <widget class="QTextEdit" name="textEdit"/>
+   </item>
+   <item row="9" column="1">
+    <widget class="QPlainTextEdit" name="plainTextEdit"/>
+   </item>
+   <item row="8" column="0">
+    <widget class="QLabel" name="label_10">
      <property name="text">
-      <string>ToolButton</string>
+      <string>textEdit</string>
      </property>
     </widget>
    </item>
-   <item row="1" column="0">
-    <widget class="QLabel" name="label_9">
+   <item row="9" column="0">
+    <widget class="QLabel" name="label_11">
      <property name="text">
-      <string>toolButton</string>
+      <string>plainTextEdit</string>
      </property>
     </widget>
    </item>

src/core/CMakeLists.txt

@@ -117,6 +117,7 @@ target_link_libraries(
   PUBLIC nlohmann_json::nlohmann_json
          pugixml::pugixml
          kdalgorithms
+         KF5SyntaxHighlighting
          Qt::Core
          Qt::CorePrivate
          Qt::Qml

src/core/scriptdialogitem.cpp

@@ -15,7 +15,13 @@
 #include "settings.h"
 #include "utils/log.h"
 
+#include <definition.h>
+#include <repository.h>
+#include <syntaxhighlighter.h>
+#include <theme.h>
+
 #include <QAbstractItemModel>
+#include <QApplication>
 #include <QCheckBox>
 #include <QComboBox>
 #include <QCompleter>
@@ -29,10 +35,12 @@
 #include <QJsonValue>
 #include <QLineEdit>
 #include <QMessageBox>
+#include <QPlainTextEdit>
 #include <QPushButton>
 #include <QQmlContext>
 #include <QRadioButton>
 #include <QSpinBox>
+#include <QTextEdit>
 #include <QToolButton>
 #include <QUiLoader>
 #include <QVBoxLayout>
@@ -552,6 +560,22 @@ void ScriptDialogItem::createProperties(QWidget *dialogWidget)
                 completer->setModel(comboBox->model());
                 comboBox->setCompleter(completer);
             }
+        } else if (auto textEdit = qobject_cast<QTextEdit *>(widget)) {
+            m_data->addProperty(widget->objectName().toLocal8Bit(), "QString", QMetaType::QString,
+                                textEdit->toPlainText());
+            connect(textEdit, &QTextEdit::textChanged, this, [this, textEdit]() {
+                m_data->setProperty(sender()->objectName().toLocal8Bit(), textEdit->toPlainText());
+            });
+            m_data->addProperty((widget->objectName() + "Syntax").toLocal8Bit(), "QString", QMetaType::QString,
+                                QString());
+        } else if (auto plainTextEdit = qobject_cast<QPlainTextEdit *>(widget)) {
+            m_data->addProperty(widget->objectName().toLocal8Bit(), "QString", QMetaType::QString,
+                                plainTextEdit->toPlainText());
+            connect(plainTextEdit, &QPlainTextEdit::textChanged, this, [this, plainTextEdit]() {
+                m_data->setProperty(sender()->objectName().toLocal8Bit(), plainTextEdit->toPlainText());
+            });
+            m_data->addProperty((widget->objectName() + "Syntax").toLocal8Bit(), "QString", QMetaType::QString,
+                                QString());
         }
     }
 
@@ -580,6 +604,16 @@ void ScriptDialogItem::changeValue(const QString &key, const QVariant &value)
     } else if (auto comboBox = qobject_cast<QComboBox *>(widget)) {
         comboBox->setCurrentText(value.toString());
         return;
+    } else if (auto textEdit = qobject_cast<QTextEdit *>(widget)) {
+        QString valueString = value.toString();
+        if (textEdit->toPlainText() != valueString)
+            textEdit->setPlainText(value.toString());
+        return;
+    } else if (auto plainTextEdit = qobject_cast<QPlainTextEdit *>(widget)) {
+        QString valueString = value.toString();
+        if (plainTextEdit->toPlainText() != valueString)
+            plainTextEdit->setPlainText(value.toString());
+        return;
     }
 
     // It may be a combobox model
@@ -593,6 +627,16 @@ void ScriptDialogItem::changeValue(const QString &key, const QVariant &value)
         return;
     }
 
+    // It may be a syntax rule
+    if (key.endsWith("Syntax")) {
+        if (auto textEdit = findChild<QTextEdit *>(key.left(key.length() - 6))) {
+            applySyntaxHighlighting(textEdit->document(), value.toString());
+        } else if (auto plainTextEdit = findChild<QPlainTextEdit *>(key.left(key.length() - 6))) {
+            applySyntaxHighlighting(plainTextEdit->document(), value.toString());
+        }
+        return;
+    }
+
     if (!widget) {
         spdlog::warn("No widget found for the key '{}'.", key.toStdString());
     } else {
@@ -601,6 +645,22 @@ void ScriptDialogItem::changeValue(const QString &key, const QVariant &value)
     }
 }
 
+void ScriptDialogItem::applySyntaxHighlighting(QTextDocument *document, const QString &syntax)
+{
+    if (!syntax.isEmpty()) {
+        auto highlighter = new KSyntaxHighlighting::SyntaxHighlighter(document);
+        static KSyntaxHighlighting::Repository repository;
+        highlighter->setTheme(repository.themeForPalette(QApplication::palette()));
+        const auto definition = repository.definitionForFileName("." + syntax);
+        if (!definition.isValid()) {
+            qWarning() << "No valid syntax definition for file extension" << syntax;
+            delete highlighter;
+            return;
+        }
+        highlighter->setDefinition(definition);
+    }
+}
+
 void ScriptDialogItem::appendChild(QQmlListProperty<QObject> *list, QObject *obj)
 {
     if (auto that = qobject_cast<ScriptDialogItem *>(list->object)) {

src/core/scriptdialogitem.h

@@ -18,6 +18,11 @@
 #include <vector>
 
 class ScriptProgressDialog;
+class QTextDocument;
+
+namespace KSyntaxHighlighting {
+class SyntaxHighlighter;
+}
 
 namespace Core {
 
@@ -85,6 +90,8 @@ public slots:
     static qsizetype countChildren(QQmlListProperty<QObject> *list);
     static void clearChildren(QQmlListProperty<QObject> *list);
 
+    void applySyntaxHighlighting(QTextDocument *document, const QString &syntax);
+
 private:
     DynamicObject *m_data;
     std::vector<QObject *> m_children;