From ecdbb30d3e39f7235878fbb37a18589f0189561c Mon Sep 17 00:00:00 2001
From: Julian Hinxlage <hinxlage.julian@web.de>
Date: Tue, 7 Jan 2020 13:56:27 +0100
Subject: [PATCH] added cursor

---
 CMakeLists.txt |  3 ++-
 main/main.cpp  | 29 ++++++++++++++++++++++++++++-
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index bd88845..c5c769d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,13 +30,14 @@ include_directories(${LIB_PATH}/include)
 add_executable(TextRenderer ${SOURCES} ${HEADERS} main/main.cpp)
 
 target_link_libraries(TextRenderer ${LIB_PATH}/lib/liblibrary.a)
-
+target_link_libraries(TextRenderer pthread)
 
 enable_testing()
 find_package(Catch2 REQUIRED)
 add_executable(UnitTests ${SOURCES} ${HEADERS} ${TESTS})
 target_link_libraries(UnitTests ${LIB_PATH}/lib/liblibrary.a)
 target_link_libraries(UnitTests Catch2::Catch2)
+target_link_libraries(UnitTests pthread)
 
 include(CTest)
 include(Catch)
diff --git a/main/main.cpp b/main/main.cpp
index 4d324e0..a9fd2e1 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -3,6 +3,8 @@
 #include "vkvm.hpp"
 #include <thread>
 
+int cursorPosX = 0;
+int cursorPosY = 0;
 
 /**
  * @author: Julian Hinxlage
@@ -10,11 +12,35 @@
  * @brief: An image is loaded and used as a font.
  */
 
+void threadHandler(Font &font){
+    static bool showCurser{false};
+
+    int start = font.height() / 4;
+    int end = font.height() * 3 / 4 + 1;
+    auto bc = vkvm::getBackgroundColor();
+    auto fc = vkvm::getForegroundColor();
+
+    while(true){
+        for (int i = start; i < end; i++) {
+            if (showCurser) {
+                vkvm::setPixel(cursorPosX, cursorPosY + i, bc);
+            }
+            else {
+                vkvm::setPixel(cursorPosX, cursorPosY + i, fc);
+            }
+        }
+        vkvm::callEvent(vkvm::EventType::Redraw);
+        showCurser = !showCurser;
+        std::this_thread::sleep_for(std::chrono::milliseconds(800));
+    }
+}
+
 int main() {
     vkvm::initialize(0);
     vkvm::setLogLevel(vkvm::DEBUG);
 
     Font font(std::string() + "../res/font" + std::to_string(vkvm::getFont()) + ".bmp", std::string() + "../res/font" + std::to_string(vkvm::getFont()) + ".toml");
+    std::thread thread(std::bind(threadHandler, font));
 
     vkvm::registerEvent(vkvm::EventType::RenderText, [&font]() {
         std::string currentText = vkvm::getText();
@@ -36,7 +62,8 @@ int main() {
                 y++;
                 x = 0;
             }else if(c == -127){
-                //TODO(julian): cursor
+                cursorPosX = x * font.width();
+                cursorPosY = y * font.height();
             }
             else{
                 if(x == perRow){