From 5fa96e59fa378af36e90cdd8ee741d164304e3b8 Mon Sep 17 00:00:00 2001
From: Riley Beckett <rbeckettvt@gmail.com>
Date: Tue, 14 Oct 2025 15:48:32 -0400
Subject: read stdin input

---
 font.c  |  9 +++++++++
 font.h  |  2 +-
 main.c  | 28 ++++++++++++++++++++++++++++
 state.h |  8 ++++++++
 4 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/font.c b/font.c
index ef95d79..533788c 100644
--- a/font.c
+++ b/font.c
@@ -1,5 +1,6 @@
 #include <fontconfig/fontconfig.h>
 #include "font.h"
+#include "array.h"
 
 char* get_font(const char* font_name) {
 	FcPattern* pattern = FcNameParse((const FcChar8*)font_name);
@@ -76,6 +77,8 @@ void atlas_init(client_state* state) {
 		metric->advance_y = (float)state->ft_face->glyph->advance.y / 64;
 		metric->bitmap_width = state->ft_face->glyph->bitmap.width;
 		metric->bitmap_height = state->ft_face->glyph->bitmap.rows;
+		metric->bearing_x = state->ft_face->glyph->bitmap_left;
+		metric->bearing_y = state->ft_face->glyph->bitmap_top;
 	}
 }
 
@@ -133,3 +136,9 @@ int atlas_get_strwidth(client_state* state, const char* str) {
 	}
 	return (int)ceil(width);
 }
+
+void atlas_calc_item_widths(client_state* state) {
+	array_for_all(item_t, item, state->items) {
+		item->pixel_len = atlas_get_strwidth(state, item->text);
+	}
+}
diff --git a/font.h b/font.h
index 71c1a12..fe77e17 100644
--- a/font.h
+++ b/font.h
@@ -8,5 +8,5 @@ void atlas_init(client_state* state);
 void atlas_create_texture(client_state* state);
 
 int atlas_get_strwidth(client_state* state, const char* str);
-
+void atlas_calc_item_widths(client_state* state);
 #endif // FONT_H_
diff --git a/main.c b/main.c
index 90c2257..433d14d 100644
--- a/main.c
+++ b/main.c
@@ -8,14 +8,38 @@
 #include "graphics.h"
 #include "input_field.h"
 #include "font.h"
+#include "array.h"
 
 void poll_events(client_state* state);
 
+void read_stdin(client_state* state) {
+	ssize_t len = 0;
+	size_t a;
+	char* line = NULL;
+	while((len = getline(&line, &a, stdin)) != -1) {
+		if (line[len - 1] == '\n') {
+			line[len - 1] = '\0';
+			len -= 1;
+		}
+		if (len != 0) {
+			array_add(state->items, (item_t){0});
+			array_last(state->items) = (item_t){
+				.text = line,
+				.pixel_len = 0
+			};
+		}
+		line = NULL;
+	}
+	free(line);
+}
+
 int main() {
 	client_state state = {0};
 	state.running = true;
 	state.input_buffer = array_new(char, 0);
 
+	read_stdin(&state);
+
 	// find font
 	char* font = get_font("Monospace");
 	if (!freetype_init(&state, font)) {
@@ -26,6 +50,8 @@ int main() {
 	// create font atlas
 	atlas_init(&state);
 
+	atlas_calc_item_widths(&state);
+
 	// start wayland
 	state.display = wl_display_connect(NULL);
 	if (!state.display) {
@@ -56,6 +82,8 @@ int main() {
 		poll_events(&state);
 		render_frame(&state);
 	}
+
+	array_free(state.items);
 }
 
 void poll_events(client_state* state) {
diff --git a/state.h b/state.h
index 3089233..4e4b99a 100644
--- a/state.h
+++ b/state.h
@@ -21,6 +21,7 @@
 typedef struct {
 	float advance_x, advance_y;
 	uint32_t bitmap_width, bitmap_height;
+	int32_t bearing_x, bearing_y;
 	float texture_offset;
 	float texture_size;
 } metric_t;
@@ -31,6 +32,11 @@ typedef struct {
 	metric_t metrics[128];
 } atlas_t;
 
+typedef struct {
+	char* text;
+	size_t pixel_len;
+} item_t;
+
 typedef struct {
 	// wayland
     struct wl_display* display;
@@ -73,6 +79,8 @@ typedef struct {
 
     bool running;
 
+	item_t* items;
+
 } client_state;
 
 #endif // STATE_H_
-- 
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