From 5d1a78b96141e50a900f5a600e8383a00cf7e01f Mon Sep 17 00:00:00 2001
From: Joshua Goins <josh@redstrate.com>
Date: Thu, 6 Jul 2023 17:37:14 -0400
Subject: [PATCH] Add a quaternion edit widget

---
 mdlviewer/include/quaternionedit.h | 24 +++++++++
 mdlviewer/src/quaternionedit.cpp   | 78 ++++++++++++++++++++++++++++++
 2 files changed, 102 insertions(+)
 create mode 100644 mdlviewer/include/quaternionedit.h
 create mode 100644 mdlviewer/src/quaternionedit.cpp

diff --git a/mdlviewer/include/quaternionedit.h b/mdlviewer/include/quaternionedit.h
new file mode 100644
index 0000000..ee3e4b0
--- /dev/null
+++ b/mdlviewer/include/quaternionedit.h
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <QSpinBox>
+#include <QWidget>
+
+#include <glm/glm.hpp>
+
+class QuaternionEdit : public QWidget {
+Q_OBJECT
+public:
+    explicit QuaternionEdit(glm::quat& quat, QWidget* parent = nullptr);
+
+    void setQuat(glm::quat& quat);
+
+Q_SIGNALS:
+    void onValueChanged();
+
+private:
+    struct {
+        QDoubleSpinBox *x, *y, *z;
+    } spinBoxes;
+
+    glm::quat& quat;
+};
diff --git a/mdlviewer/src/quaternionedit.cpp b/mdlviewer/src/quaternionedit.cpp
new file mode 100644
index 0000000..bd412f7
--- /dev/null
+++ b/mdlviewer/src/quaternionedit.cpp
@@ -0,0 +1,78 @@
+#include "quaternionedit.h"
+
+#include <QHBoxLayout>
+#include <QTimer>
+#include <glm/gtc/quaternion.hpp>
+
+QuaternionEdit::QuaternionEdit(glm::quat& quat, QWidget* parent) : QWidget(parent), quat(quat) {
+    auto itemsLayout = new QHBoxLayout(this);
+    itemsLayout->setMargin(0);
+
+    spinBoxes.x = new QDoubleSpinBox();
+    spinBoxes.y = new QDoubleSpinBox();
+    spinBoxes.z = new QDoubleSpinBox();
+
+    spinBoxes.x->setMinimum(-10000.0);
+    spinBoxes.x->setMaximum(10000.0);
+
+    spinBoxes.y->setMinimum(-10000.0);
+    spinBoxes.y->setMaximum(10000.0);
+
+    spinBoxes.z->setMinimum(-10000.0);
+    spinBoxes.z->setMaximum(10000.0);
+
+    itemsLayout->addWidget(spinBoxes.x);
+    itemsLayout->addWidget(spinBoxes.y);
+    itemsLayout->addWidget(spinBoxes.z);
+
+    auto euler = glm::eulerAngles(quat);
+    euler.x = glm::degrees(euler.x);
+    euler.y = glm::degrees(euler.y);
+    euler.z = glm::degrees(euler.z);
+
+    spinBoxes.x->setValue(euler.x);
+    spinBoxes.y->setValue(euler.y);
+    spinBoxes.z->setValue(euler.z);
+
+    connect(
+            spinBoxes.x, static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged), [this](double d) {
+                auto euler = glm::eulerAngles(this->quat);
+                euler.x = glm::radians(d);
+
+                this->quat = glm::quat(euler);
+
+                Q_EMIT onValueChanged();
+            });
+    connect(
+            spinBoxes.y, static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged), [this](double d) {
+                auto euler = glm::eulerAngles(this->quat);
+                euler.y = glm::radians(d);
+
+                this->quat = glm::quat(euler);
+
+                Q_EMIT onValueChanged();
+            });
+    connect(
+            spinBoxes.z, static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged), [this](double d) {
+                auto euler = glm::eulerAngles(this->quat);
+                euler.z = glm::radians(d);
+
+                this->quat = glm::quat(euler);
+
+                Q_EMIT onValueChanged();
+            });
+}
+
+void QuaternionEdit::setQuat(glm::quat &quat) {
+    this->quat = quat;
+    auto euler = glm::eulerAngles(quat);
+    euler.x = glm::degrees(euler.x);
+    euler.y = glm::degrees(euler.y);
+    euler.z = glm::degrees(euler.z);
+
+    spinBoxes.x->setValue(euler.x);
+    spinBoxes.y->setValue(euler.y);
+    spinBoxes.z->setValue(euler.z);
+}
+
+#include "moc_quaternionedit.cpp"
\ No newline at end of file