# HG changeset patch
# User Teemu Piippo <teemu@hecknology.net>
# Date 1584544283 -7200
# Node ID 40e2940605a3238b402d3694c3c204b199fdd8ac
# Parent  7137c20979af0a3bab949437f15792f18b651e92
added a matrix editing widget

diff -r 7137c20979af -r 40e2940605a3 CMakeLists.txt
--- a/CMakeLists.txt	Wed Mar 18 15:54:30 2020 +0200
+++ b/CMakeLists.txt	Wed Mar 18 17:11:23 2020 +0200
@@ -59,6 +59,7 @@
 	src/ui/polygonobjecteditor.cpp
 	src/widgets/colorbutton.cpp
 	src/widgets/doublespinbox.cpp
+	src/widgets/matrixeditor.cpp
 	src/widgets/vec3editor.cpp
 )
 set (LDFORGE_HEADERS
@@ -106,6 +107,7 @@
 	src/ui/polygonobjecteditor.h
 	src/widgets/colorbutton.h
 	src/widgets/doublespinbox.h
+	src/widgets/matrixeditor.h
 	src/widgets/vec3editor.h
 )
 set (LDFORGE_FORMS
@@ -114,6 +116,7 @@
 	src/settingseditor/librarieseditor.ui
 	src/settingseditor/settingseditor.ui
 	src/ui/multiplyfactordialog.ui
+	src/widgets/matrixeditor.ui
 	src/widgets/vec3editor.ui
 )
 
diff -r 7137c20979af -r 40e2940605a3 src/widgets/matrixeditor.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/widgets/matrixeditor.cpp	Wed Mar 18 17:11:23 2020 +0200
@@ -0,0 +1,89 @@
+#include "main.h"
+#include "matrixeditor.h"
+#include "ui_matrixeditor.h"
+#include "../ui/multiplyfactordialog.h"
+
+constexpr char BUTTON_COLUMN_PROPERTY[] = "_ldforge_column";
+
+MatrixEditor::MatrixEditor(const glm::mat4 value, QWidget* parent) :
+	QWidget(parent),
+	ui(new Ui::MatrixEditor)
+{
+	ui->setupUi(this);
+	for (int column = 0; column < countof(this->spinboxes); column += 1)
+	{
+		for (int row = 0; row < countof(this->spinboxes[0]); row += 1)
+		{
+			const QString name = "cell"_q + QString::number(column) + QString::number(row);
+			QDoubleSpinBox** spinbox = &this->spinboxes[column][row];
+			*spinbox = this->findChild<QDoubleSpinBox*>(name);
+			connect(*spinbox, qOverload<double>(&QDoubleSpinBox::valueChanged), [&]()
+			{
+				emit this->valueChanged(this->value());
+			});
+			Q_ASSERT(*spinbox != nullptr);
+		}
+		QAbstractButton* button = this->findChild<QAbstractButton*>("multiply"_q + QString::number(column));
+		button->setProperty(BUTTON_COLUMN_PROPERTY, column);
+		connect(button, &QAbstractButton::clicked, this, &MatrixEditor::multiplyButtonPressed);
+	}
+	this->setValue(value);
+}
+
+MatrixEditor::MatrixEditor(QWidget *parent) :
+	MatrixEditor{glm::mat4{1}, parent}
+{
+}
+
+MatrixEditor::~MatrixEditor()
+{
+	delete ui;
+}
+
+glm::mat4 MatrixEditor::value() const
+{
+	glm::mat4 result{1};
+	for (int column = 0; column < countof(this->spinboxes); column += 1)
+	{
+		for (int row = 0; row < countof(this->spinboxes[0]); row += 1)
+		{
+			result[column][row] = this->spinboxes[column][row]->value();
+		}
+	}
+	return result;
+}
+
+void MatrixEditor::setValue(const glm::mat4& value)
+{
+	for (int column = 0; column < countof(this->spinboxes); column += 1)
+	{
+		for (int row = 0; row < countof(this->spinboxes[0]); row += 1)
+		{
+			QDoubleSpinBox* spinbox = this->spinboxes[column][row];
+			QSignalBlocker blocker{spinbox};
+			spinbox->setValue(value[column][row]);
+		}
+	}
+}
+
+void MatrixEditor::multiplyButtonPressed()
+{
+	QAbstractButton* button = qobject_cast<QAbstractButton*>(this->sender());
+	if (button != nullptr)
+	{
+		bool ok;
+		const int column = button->property(BUTTON_COLUMN_PROPERTY).toInt(&ok);
+		if (ok and column >= 0 and column < this->matrixSize())
+		{
+			glm::mat4 newValue = this->value();
+			MultiplyFactorDialog dialog{newValue[column], this};
+			const int result = dialog.exec();
+			if (result == QDialog::Accepted)
+			{
+				newValue[column] = glm::vec4{dialog.value(), (column == 3) ? 1 : 0};
+				this->setValue(newValue);
+				emit valueChanged(newValue);
+			}
+		}
+	}
+}
diff -r 7137c20979af -r 40e2940605a3 src/widgets/matrixeditor.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/widgets/matrixeditor.h	Wed Mar 18 17:11:23 2020 +0200
@@ -0,0 +1,30 @@
+#pragma once
+#include <QWidget>
+#include "main.h"
+
+namespace Ui {
+class MatrixEditor;
+}
+
+class MatrixEditor : public QWidget
+{
+	Q_OBJECT
+public:
+	explicit MatrixEditor(QWidget *parent = nullptr);
+	explicit MatrixEditor(const glm::mat4 value, QWidget* parent = nullptr);
+	~MatrixEditor();
+	glm::mat4 value() const;
+	void setValue(const glm::mat4& value);
+Q_SIGNALS:
+	void valueChanged(const glm::mat4& value);
+private:
+	constexpr int matrixSize() const;
+	Q_SLOT void multiplyButtonPressed();
+	class QDoubleSpinBox* spinboxes[4][3];
+	Ui::MatrixEditor *ui;
+};
+
+constexpr int MatrixEditor::matrixSize() const
+{
+	return 4;
+}
diff -r 7137c20979af -r 40e2940605a3 src/widgets/matrixeditor.ui
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/widgets/matrixeditor.ui	Wed Mar 18 17:11:23 2020 +0200
@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MatrixEditor</class>
+ <widget class="QWidget" name="MatrixEditor">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>356</width>
+    <height>172</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <widget class="DoubleSpinBox" name="cell00"/>
+   </item>
+   <item row="0" column="1">
+    <widget class="DoubleSpinBox" name="cell10"/>
+   </item>
+   <item row="0" column="2">
+    <widget class="DoubleSpinBox" name="cell20"/>
+   </item>
+   <item row="0" column="3">
+    <widget class="DoubleSpinBox" name="cell30"/>
+   </item>
+   <item row="1" column="0">
+    <widget class="DoubleSpinBox" name="cell01"/>
+   </item>
+   <item row="1" column="1">
+    <widget class="DoubleSpinBox" name="cell11"/>
+   </item>
+   <item row="1" column="2">
+    <widget class="DoubleSpinBox" name="cell21"/>
+   </item>
+   <item row="1" column="3">
+    <widget class="DoubleSpinBox" name="cell31"/>
+   </item>
+   <item row="2" column="0">
+    <widget class="DoubleSpinBox" name="cell02"/>
+   </item>
+   <item row="2" column="1">
+    <widget class="DoubleSpinBox" name="cell12"/>
+   </item>
+   <item row="2" column="2">
+    <widget class="DoubleSpinBox" name="cell22"/>
+   </item>
+   <item row="2" column="3">
+    <widget class="DoubleSpinBox" name="cell32"/>
+   </item>
+   <item row="3" column="0">
+    <widget class="DoubleSpinBox" name="doubleSpinBox">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="1">
+    <widget class="DoubleSpinBox" name="doubleSpinBox_2">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="2">
+    <widget class="DoubleSpinBox" name="doubleSpinBox_3">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="3">
+    <widget class="DoubleSpinBox" name="doubleSpinBox_4">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+     <property name="value">
+      <double>1.000000000000000</double>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="0">
+    <widget class="QPushButton" name="multiply0">
+     <property name="text">
+      <string>×</string>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="1">
+    <widget class="QPushButton" name="multiply1">
+     <property name="text">
+      <string>×</string>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="2">
+    <widget class="QPushButton" name="multiply2">
+     <property name="text">
+      <string>×</string>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="3">
+    <widget class="QPushButton" name="multiply3">
+     <property name="text">
+      <string>×</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>DoubleSpinBox</class>
+   <extends>QDoubleSpinBox</extends>
+   <header>widgets/doublespinbox.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>