Add gradients

1 files changed, 11 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
index 8d60eb2..78dcad7 100644
--- a/src/util.h
+++ b/src/util.h
@@ -6,6 +6,7 @@
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdint.h>
+#include <cairo.h>
 
 #define unreachable() log_panic("The impossible happened");
 
@@ -15,6 +16,12 @@ typedef struct {
     double r, g, b, a;
 } color_t;
 
+typedef struct {
+    color_t *colors;
+    size_t length;
+    cairo_pattern_t *cached;
+} gradient_t;
+
 static inline color_t color_rgba(int r, int g, int b, int a)
 {
     color_t color = { r / 255.0, g / 255.0, b / 255.0, a / 255.0 };
@@ -35,6 +42,10 @@ char *color_to_string(color_t *color);
 
 void color_print(FILE *stream, color_t *color);
 
+char *gradient_to_string(gradient_t *gradient);
+
+void gradient_free(gradient_t *gradient);
+
 const struct timespec timespec_from_ms(long ms);
 
 const long timespec_to_ms(struct timespec ts);