From 8259b7dc510eb4fb63a13d5d553468d19df43c13 Mon Sep 17 00:00:00 2001
From: Nav <nav@navnav.me>
Date: Sun, 22 Aug 2021 20:38:05 +0100
Subject: [PATCH] New SVG widget for displaying SVG images

---
 CMakeLists.txt                                |  1 +
 .../InsightWindow/Widgets/SvgWidget.cpp       | 44 ++++++++++++
 .../InsightWindow/Widgets/SvgWidget.hpp       | 70 +++++++++++++++++++
 3 files changed, 115 insertions(+)
 create mode 100644 src/Insight/UserInterfaces/InsightWindow/Widgets/SvgWidget.cpp
 create mode 100644 src/Insight/UserInterfaces/InsightWindow/Widgets/SvgWidget.hpp

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2358c533..ff66353e 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -126,6 +126,7 @@ add_executable(Bloom
     src/Insight/InsightWorker.cpp
     src/Insight/UserInterfaces/InsightWindow/InsightWindow.cpp
     src/Insight/UserInterfaces/InsightWindow/AboutWindow.cpp
+    src/Insight/UserInterfaces/InsightWindow/Widgets/SvgWidget.cpp
 
     # Target package widgets
     src/Insight/UserInterfaces/InsightWindow/Widgets/TargetWidgets/TargetPackageWidget.hpp
diff --git a/src/Insight/UserInterfaces/InsightWindow/Widgets/SvgWidget.cpp b/src/Insight/UserInterfaces/InsightWindow/Widgets/SvgWidget.cpp
new file mode 100644
index 00000000..eb94dc4e
--- /dev/null
+++ b/src/Insight/UserInterfaces/InsightWindow/Widgets/SvgWidget.cpp
@@ -0,0 +1,44 @@
+#include "SvgWidget.hpp"
+
+#include <QPainter>
+#include <cmath>
+#include "src/Logger/Logger.hpp"
+
+using namespace Bloom::Widgets;
+
+SvgWidget::SvgWidget(QWidget* parent): QFrame(parent) {
+    this->containerWidth = parent->width();
+    this->containerHeight = parent->height();
+    this->setFixedSize(this->containerWidth, this->containerHeight);
+    this->renderer.setAspectRatioMode(Qt::AspectRatioMode::KeepAspectRatioByExpanding);
+}
+
+void SvgWidget::paintEvent(QPaintEvent* paintEvent) {
+    auto painter = QPainter(this);
+    auto svgSize = this->renderer.defaultSize();
+    auto margins = this->contentsMargins();
+
+    painter.setRenderHints(QPainter::RenderHint::Antialiasing | QPainter::RenderHint::SmoothPixmapTransform, true);
+
+    this->setFixedHeight(this->containerHeight + margins.top() + margins.bottom());
+    this->setFixedWidth(this->containerWidth + margins.left() + margins.right());
+
+    if (this->angle % 360 != 0) {
+        painter.translate(
+            std::ceil(static_cast<float>(this->containerWidth / 2)),
+            std::ceil(static_cast<float>(this->containerHeight / 2))
+        );
+        painter.rotate(90);
+        painter.translate(
+            -std::ceil(static_cast<float>(this->containerWidth / 2)),
+            -std::ceil(static_cast<float>(this->containerHeight / 2))
+        );
+    }
+
+    this->renderer.render(&painter, QRectF(
+        std::ceil(static_cast<float>(this->containerWidth - svgSize.width()) / 2 + static_cast<float>(margins.left())),
+        std::ceil(static_cast<float>(this->containerHeight - svgSize.height()) / 2 + static_cast<float>(margins.top())),
+        svgSize.width(),
+        svgSize.height()
+    ));
+}
diff --git a/src/Insight/UserInterfaces/InsightWindow/Widgets/SvgWidget.hpp b/src/Insight/UserInterfaces/InsightWindow/Widgets/SvgWidget.hpp
new file mode 100644
index 00000000..7647c205
--- /dev/null
+++ b/src/Insight/UserInterfaces/InsightWindow/Widgets/SvgWidget.hpp
@@ -0,0 +1,70 @@
+#pragma once
+
+#include <QFrame>
+#include <QSvgRenderer>
+#include <QString>
+#include <QSize>
+
+#include "src/Logger/Logger.hpp"
+
+namespace Bloom::Widgets
+{
+    class SvgWidget: public QFrame
+    {
+    Q_OBJECT
+        Q_PROPERTY(QString svgFilePath READ getSvgFilePath WRITE setSvgFilePath DESIGNABLE true)
+        Q_PROPERTY(int containerWidth READ getContainerWidth WRITE setContainerWidth DESIGNABLE true)
+        Q_PROPERTY(int containerHeight READ getContainerHeight WRITE setContainerHeight DESIGNABLE true)
+        Q_PROPERTY(int angle READ getAngle WRITE setAngle DESIGNABLE true)
+
+    private:
+        QSvgRenderer renderer = new QSvgRenderer(this);
+        QString svgFilePath;
+        int containerWidth = 0;
+        int containerHeight = 0;
+        int angle = 0;
+
+    protected:
+        void paintEvent(QPaintEvent* paintEvent) override;
+
+    public:
+        explicit SvgWidget(QWidget* parent);
+
+        void setSvgFilePath(const QString& svgFilePath) {
+            this->svgFilePath = svgFilePath;
+            this->renderer.load(this->svgFilePath);
+        }
+
+        QString getSvgFilePath() {
+            return this->svgFilePath;
+        }
+
+        void setContainerWidth(int containerWidth) {
+            this->containerWidth = containerWidth;
+        }
+
+        [[nodiscard]] int getContainerWidth() const {
+            return this->containerWidth;
+        }
+
+        void setContainerHeight(int containerHeight) {
+            this->containerHeight = containerHeight;
+        }
+
+        [[nodiscard]] int getContainerHeight() const {
+            return this->containerHeight;
+        }
+
+        void setAngle(int angle) {
+            this->angle = angle;
+        }
+
+        [[nodiscard]] int getAngle() const {
+            return this->angle;
+        }
+
+//        [[nodiscard]] QSize sizeHint() const override {
+//            return QSize(this->containerWidth, this->containerHeight);
+//        };
+    };
+}