From b30a695ffc330ef69e5d688d8b2f283103a65d1e Mon Sep 17 00:00:00 2001
From: Raphael Robatsch <raphael-git@tapesoftware.net>
Date: Wed, 27 Oct 2021 18:20:14 +0200
Subject: [PATCH] packaging

---
 src/{config.hpp => config.def.hpp} |  3 +-
 src/line_buffer.hpp                | 60 ++++++++++++++++++++++++++++++
 2 files changed, 61 insertions(+), 2 deletions(-)
 rename src/{config.hpp => config.def.hpp} (89%)
 create mode 100644 src/line_buffer.hpp

diff --git a/src/config.hpp b/src/config.def.hpp
similarity index 89%
rename from src/config.hpp
rename to src/config.def.hpp
index 8ef8813..38f4909 100644
--- a/src/config.hpp
+++ b/src/config.def.hpp
@@ -10,14 +10,13 @@ constexpr int paddingX = 10;
 constexpr int paddingY = 3;
 
 // See https://docs.gtk.org/Pango/type_func.FontDescription.from_string.html
-constexpr const char *font = "Source Sans Pro 12";
+constexpr const char *font = "Sans 12";
 
 constexpr ColorScheme colorInactive = {Color(0xbb, 0xbb, 0xbb), Color(0x22, 0x22, 0x22)};
 constexpr ColorScheme colorActive = {Color(0xee, 0xee, 0xee), Color(0x00, 0x55, 0x77)};
 constexpr const char *termcmd[] = {"foot", nullptr};
 
 constexpr Button buttons[] = {
-    { ClkTagBar,       BTN_LEFT,   toggleview, {0} },
     { ClkTagBar,       BTN_LEFT,   view,       {0} },
     { ClkTagBar,       BTN_RIGHT,  tag,        {0} },
     { ClkTagBar,       BTN_MIDDLE, toggletag,  {0} },
diff --git a/src/line_buffer.hpp b/src/line_buffer.hpp
new file mode 100644
index 0000000..37f4e3f
--- /dev/null
+++ b/src/line_buffer.hpp
@@ -0,0 +1,60 @@
+// somebar - dwl bar
+// See LICENSE file for copyright and license details.
+
+#pragma once
+#include <array>
+#include <string.h>
+
+// reads data from Reader, and passes complete lines to Handler.
+template<size_t N>
+class LineBuffer {
+    std::array<char, N> _buffer;
+    size_t _bytesBuffered {0};
+    size_t _bytesConsumed {0};
+    bool _discardLine {0};
+public:
+    template<typename Reader, typename Handler>
+    size_t readLines(const Reader& reader, const Handler& handler)
+    {
+        auto d = _buffer.data();
+        while (true) {
+            auto bytesRead = reader(d + _bytesBuffered, _buffer.size() - _bytesBuffered);
+            if (bytesRead <= 0) {
+                return bytesRead;
+            }
+
+            _bytesBuffered += bytesRead;
+            char* linePosition = nullptr;
+            do {
+                char* lineStart = d + _bytesConsumed;
+                linePosition = static_cast<char*>(memchr(
+                    lineStart,
+                    '\n',
+                    _bytesBuffered - _bytesConsumed));
+
+                if (linePosition) {
+                    int lineLength = linePosition - lineStart;
+                    if (!_discardLine) {
+                        handler(lineStart, lineLength);
+                    }
+                    _bytesConsumed += lineLength + 1;
+                    _discardLine = false;
+                }
+            } while (linePosition);
+
+            size_t bytesRemaining = _bytesBuffered - _bytesConsumed;
+            if (bytesRemaining == _buffer.size()) {
+                // line too long
+                _discardLine = true;
+                _bytesBuffered = 0;
+                _bytesConsumed = 0;
+            } else if (bytesRemaining > 0 && _bytesConsumed > 0) {
+                // move the last partial message to the front of the buffer, so a full-sized
+                // message will fit
+                memmove(d, d+_bytesConsumed, bytesRemaining);
+                _bytesBuffered = bytesRemaining;
+                _bytesConsumed = 0;
+            }
+        }
+    }
+};