visualizations

commit dc9fa71238ed3bfd784a93bf412f6f456e2bb719
parent e9c21d3b4d42f9d82738b2fe5f3a15184fe3f4cd
Author: Andrew Laack <andrew@laack.co>
Date:   Tue, 15 Sep 2026 12:15:38 -0500

Use X11 to find screen size

Diffstat:
M
background/Makefile
 | 
6
+++---
M
background/headers/background.hpp
 | 
3
+++
M
background/src/background.cpp
 | 
19
+++++++++++++++++++
M
background/src/main.cpp
 | 
6
++++--

4 files changed, 29 insertions(+), 5 deletions(-)
diff --git a/background/Makefile b/background/Makefile
@@ -1,13 +1,13 @@
 build:
-	g++ -Ofast src/main.cpp src/prim.cpp src/graph.cpp src/edge.cpp src/utils.cpp src/vertex.cpp src/background.cpp -lraylib  -o background
+	g++ -Ofast src/main.cpp src/prim.cpp src/graph.cpp src/edge.cpp src/utils.cpp src/vertex.cpp src/background.cpp -lraylib  -lX11 -o background
 install: build
 	cp background /usr/local/bin
 clean:
 	rm background
 test:
-	g++ tests/graph_test.cpp src/prim.cpp src/graph.cpp src/edge.cpp src/utils.cpp src/vertex.cpp src/background.cpp -lCatch2Main -lCatch2 -lraylib -o graph_tests
+	g++ tests/graph_test.cpp src/prim.cpp src/graph.cpp src/edge.cpp src/utils.cpp src/vertex.cpp src/background.cpp -lCatch2Main -lCatch2 -lraylib -lX11 -o graph_tests
 	./graph_tests
 	rm graph_tests
-	g++ tests/algo_test.cpp src/prim.cpp src/graph.cpp src/edge.cpp src/utils.cpp src/vertex.cpp src/background.cpp -lCatch2Main -lCatch2 -lraylib -o algo_tests
+	g++ tests/algo_test.cpp src/prim.cpp src/graph.cpp src/edge.cpp src/utils.cpp src/vertex.cpp src/background.cpp -lCatch2Main -lCatch2 -lraylib -lX11 -o algo_tests
 	./algo_tests
 	rm algo_tests
diff --git a/background/headers/background.hpp b/background/headers/background.hpp
@@ -1,4 +1,7 @@
 #pragma once
 
+#include <cstdint>
 #include <string>
+#include <vector>
 void setBackground(std::string filePath);
+std::vector<uint32_t> getScreenSize();
diff --git a/background/src/background.cpp b/background/src/background.cpp
@@ -1,6 +1,25 @@
+#include <csignal>
+#include <cstddef>
+#include <cstdint>
+#include <stdexcept>
 #include <string>
+#include <vector>
+#include <X11/Xlib.h>
 
 void setBackground(std::string filePath) {
     std::string command = "/usr/bin/feh --no-fehbg --bg-scale " + filePath;
     system(command.c_str());
 }
+
+std::vector<uint32_t> getScreenSize() {
+    Display* dpy;
+    Screen* screen;
+    dpy = XOpenDisplay(NULL);
+    int count = ScreenCount(dpy);
+    if(count == 0) {
+        throw std::runtime_error{"Unable to find screens."};
+    }
+    screen = ScreenOfDisplay(dpy, 0);
+    std::vector<uint32_t> res {(uint32_t)screen->width, (uint32_t)screen->height};
+    return res;
+}
diff --git a/background/src/main.cpp b/background/src/main.cpp
@@ -34,8 +34,10 @@ int main() {
     std::size_t edgeCount = 2000;
     std::size_t vertCount = 100;
 
-    uint32_t xMax = 5120;
-    uint32_t yMax = 1440;
+    auto ss = getScreenSize();
+
+    uint32_t xMax = ss[0];
+    uint32_t yMax = ss[1];
 
     SetConfigFlags(FLAG_WINDOW_HIDDEN);
     InitWindow(xMax, yMax, "Raylib animation window");