From 52016defd5047e44584cc784e7d2f2fe6cbe296d Mon Sep 17 00:00:00 2001
From: Jared Boone <jboone@earfeast.com>
Date: Fri, 19 Feb 2016 15:34:02 -0800
Subject: [PATCH] Capture screen image, save to PNG file on SD card.

---
 firmware/application/Makefile          | 1 +
 firmware/application/ui_navigation.cpp | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/firmware/application/Makefile b/firmware/application/Makefile
index 37f1a4f0..6969eb19 100755
--- a/firmware/application/Makefile
+++ b/firmware/application/Makefile
@@ -180,6 +180,7 @@ CPPSRC = main.cpp \
          sd_card.cpp \
          file.cpp \
          log_file.cpp \
+         png_writer.cpp \
          manchester.cpp \
          string_format.cpp \
          temperature_logger.cpp \
diff --git a/firmware/application/ui_navigation.cpp b/firmware/application/ui_navigation.cpp
index c298da18..ee725801 100644
--- a/firmware/application/ui_navigation.cpp
+++ b/firmware/application/ui_navigation.cpp
@@ -34,6 +34,8 @@
 
 #include "core_control.hpp"
 
+#include "png_writer.hpp"
+
 namespace ui {
 
 /* SystemStatusView ******************************************************/
@@ -77,6 +79,13 @@ void SystemStatusView::set_title(const std::string new_value) {
 }
 
 void SystemStatusView::on_camera() {
+	PNGWriter png { "capture.png" };
+
+	for(int i=0; i<320; i++) {
+		std::array<ColorRGB888, 240> row;
+		portapack::display.read_pixels({ 0, i, 240, 1 }, row);
+		png.write_scanline(row);
+	}
 }
 
 /* Navigation ************************************************************/