From a0fb1981b4db08a2d82fdbb1e5e21f3a761008f3 Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Mon, 16 Nov 2020 12:27:59 +1100
Subject: [PATCH] multi-line edit for text in paramview

---
 .../nodeparamview/nodeparamviewrichtext.cpp   | 12 ++++++---
 .../nodeparamview/nodeparamviewrichtext.h     | 27 +++++++++++++------
 2 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/app/widget/nodeparamview/nodeparamviewrichtext.cpp b/app/widget/nodeparamview/nodeparamviewrichtext.cpp
index 476c7cc76..9f30be45d 100644
--- a/app/widget/nodeparamview/nodeparamviewrichtext.cpp
+++ b/app/widget/nodeparamview/nodeparamviewrichtext.cpp
@@ -34,19 +34,20 @@ NodeParamViewRichText::NodeParamViewRichText(QWidget *parent) :
   QHBoxLayout* layout = new QHBoxLayout(this);
   layout->setMargin(0);
 
-  line_edit_ = new QLineEdit();
-  connect(line_edit_, &QLineEdit::textEdited, this, &NodeParamViewRichText::textEdited);
+  line_edit_ = new QTextEdit();
+  connect(line_edit_, &QTextEdit::textChanged, this, &NodeParamViewRichText::InnerWidgetTextChanged);
   layout->addWidget(line_edit_);
 
   QPushButton* edit_btn = new QPushButton();
   edit_btn->setIcon(icon::ToolEdit);
+  edit_btn->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Expanding);
   layout->addWidget(edit_btn);
   connect(edit_btn, &QPushButton::clicked, this, &NodeParamViewRichText::ShowRichTextDialog);
 }
 
 void NodeParamViewRichText::ShowRichTextDialog()
 {
-  RichTextDialog d(line_edit_->text(), this);
+  RichTextDialog d(this->text(), this);
   if (d.exec() == QDialog::Accepted) {
     QString s = d.text();
 
@@ -55,4 +56,9 @@ void NodeParamViewRichText::ShowRichTextDialog()
   }
 }
 
+void NodeParamViewRichText::InnerWidgetTextChanged()
+{
+  emit textEdited(this->text());
+}
+
 OLIVE_NAMESPACE_EXIT
diff --git a/app/widget/nodeparamview/nodeparamviewrichtext.h b/app/widget/nodeparamview/nodeparamviewrichtext.h
index 974a742b4..9f09576f3 100644
--- a/app/widget/nodeparamview/nodeparamviewrichtext.h
+++ b/app/widget/nodeparamview/nodeparamviewrichtext.h
@@ -21,7 +21,7 @@
 #ifndef NODEPARAMVIEWRICHTEXT_H
 #define NODEPARAMVIEWRICHTEXT_H
 
-#include <QLineEdit>
+#include <QTextEdit>
 #include <QWidget>
 
 #include "common/define.h"
@@ -36,31 +36,42 @@ public:
 
   QString text() const
   {
-    return line_edit_->text();
+    return line_edit_->toPlainText().replace('\n', QStringLiteral("<br>"));
   }
 
 public slots:
-  void setText(const QString &s)
+  void setText(QString s)
   {
-    line_edit_->setText(s);
+    line_edit_->blockSignals(true);
+    line_edit_->setPlainText(s.replace(QStringLiteral("<br>"), QStringLiteral("\n")));
+    line_edit_->blockSignals(false);
   }
 
   void setTextPreservingCursor(const QString &s)
   {
-    int cursor_pos = line_edit_->cursorPosition();
-    line_edit_->setText(s);
-    line_edit_->setCursorPosition(cursor_pos);
+    // Save cursor position
+    int cursor_pos = line_edit_->textCursor().position();
+
+    // Set text
+    this->setText(s);
+
+    // Get new text cursor
+    QTextCursor c = line_edit_->textCursor();
+    c.setPosition(cursor_pos);
+    line_edit_->setTextCursor(c);
   }
 
 signals:
   void textEdited(const QString &);
 
 private:
-  QLineEdit* line_edit_;
+  QTextEdit* line_edit_;
 
 private slots:
   void ShowRichTextDialog();
 
+  void InnerWidgetTextChanged();
+
 };
 
 OLIVE_NAMESPACE_EXIT