From 484a705e0daf95c95679ad7599278f102f1fe558 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Thu, 26 Jan 2023 22:15:16 +0100
Subject: pose-widget: add grid lines

---
 pose-widget/images/grid-dark.png  | Bin 0 -> 26862 bytes
 pose-widget/images/grid-light.png | Bin 0 -> 29026 bytes
 pose-widget/pose-widget.cpp       |  11 +++++++++++
 pose-widget/pose-widget.hpp       |   3 +++
 pose-widget/posewidget.qrc        |   2 ++
 5 files changed, 16 insertions(+)
 create mode 100644 pose-widget/images/grid-dark.png
 create mode 100644 pose-widget/images/grid-light.png

(limited to 'pose-widget')

diff --git a/pose-widget/images/grid-dark.png b/pose-widget/images/grid-dark.png
new file mode 100644
index 00000000..8665fc30
Binary files /dev/null and b/pose-widget/images/grid-dark.png differ
diff --git a/pose-widget/images/grid-light.png b/pose-widget/images/grid-light.png
new file mode 100644
index 00000000..83b844c0
Binary files /dev/null and b/pose-widget/images/grid-light.png differ
diff --git a/pose-widget/pose-widget.cpp b/pose-widget/pose-widget.cpp
index 7c1f19c0..51d86609 100644
--- a/pose-widget/pose-widget.cpp
+++ b/pose-widget/pose-widget.cpp
@@ -22,6 +22,7 @@ namespace pose_widget_impl {
 pose_widget::pose_widget(QWidget* parent) : QWidget(parent)
 {
     QPainter p;
+    p.setRenderHint(QPainter::SmoothPixmapTransform);
 #ifdef TEST
     //draw rectangle frame around of Octopus, only if TEST defined
     p.begin(&front);
@@ -56,6 +57,14 @@ pose_widget::pose_widget(QWidget* parent) : QWidget(parent)
 #endif
 }
 
+void pose_widget::set_grid_background(bool dark_theme)
+{
+    if (dark_theme)
+        background = QImage(":/images/grid-dark.png");
+    else
+        background = QImage(":/images/grid-light.png");
+}
+
 void pose_widget::present(double yaw, double pitch, double roll, double x, double y, double z)
 {
     T = { x, y, z };
@@ -94,6 +103,8 @@ void pose_widget::paintEvent(QPaintEvent*)
 
     {
         p.fillRect(rect(), palette().brush(backgroundRole()));
+        if (!background.isNull())
+            p.drawImage(rect(), background);
         // draw axes
         p.save();
         p.setPen(QPen(Qt::gray, 1, Qt::SolidLine));
diff --git a/pose-widget/pose-widget.hpp b/pose-widget/pose-widget.hpp
index 9152e960..53ecc644 100644
--- a/pose-widget/pose-widget.hpp
+++ b/pose-widget/pose-widget.hpp
@@ -27,6 +27,7 @@ public:
     explicit pose_widget(QWidget *parent = nullptr);
     void present(double xAngle, double yAngle, double zAngle, double x, double y, double z);
     QCheckBox mirror{"Mirror", this};
+    void set_grid_background(bool dark_theme);
 private:
     void resizeEvent(QResizeEvent *event) override;
     void paintEvent(QPaintEvent*) override;
@@ -35,6 +36,8 @@ private:
     QImage front{QImage{":/images/side1.png"}.convertToFormat(QImage::Format_ARGB32)};
     QImage back {QImage{":/images/side6.png"}.convertToFormat(QImage::Format_ARGB32)
                                              .mirrored(true,false)};
+    QImage background;
+
     QImage shine {QImage{front.width(), front.height(), QImage::Format_ARGB32}};
     QImage shadow{QImage{front.width(), front.height(), QImage::Format_ARGB32}};
 };
diff --git a/pose-widget/posewidget.qrc b/pose-widget/posewidget.qrc
index e799432f..636151e0 100644
--- a/pose-widget/posewidget.qrc
+++ b/pose-widget/posewidget.qrc
@@ -2,5 +2,7 @@
     <qresource prefix="/">
         <file>images/side1.png</file>
         <file>images/side6.png</file>
+        <file>images/grid-light.png</file>
+        <file>images/grid-dark.png</file>
     </qresource>
 </RCC>
-- 
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