Add gradients

1 files changed, 30 insertions, 19 deletions

diff --git a/src/layout.c b/src/layout.c
index db707c5..3c4f13b 100644
--- a/src/layout.c
+++ b/src/layout.c
@@ -93,30 +93,41 @@ void layout_init(layout_t *layout, block_t *block, layout_info_t info)
 
 void layout_render(layout_t *layout, cairo_t *cr)
 {
-    double degree = M_PI / 180.0;
+    const double degree = M_PI / 180.0;
     int radius = layout->height / 2 - layout->y_padding;
     int line_radius = radius - layout->block->line_width / 2;
 
-    // Render background
-    color_t color = layout->block->color;
-    cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a);
+    // Update gradients
+    cairo_matrix_t matrix;
+    cairo_matrix_init_scale(&matrix, 1.0 / layout->width, 1.0);
+    cairo_matrix_translate(&matrix, -layout->x, 0.0);
 
-    cairo_new_sub_path(cr);
-    cairo_arc(cr, layout->x + layout->x_padding + radius, layout->y + layout->y_padding + radius, radius, 90 * degree, 270 * degree);
-    cairo_arc(cr, layout->x + layout->width - layout->x_padding - radius, layout->y + layout->y_padding + radius, radius, 270 * degree, 450 * degree);
-    cairo_close_path(cr);
-    cairo_fill(cr);
+    // Render background
+    cairo_pattern_t *pattern = layout->block->bg_color.cached;
+    if (pattern != NULL) {
+        cairo_new_sub_path(cr);
+        cairo_arc(cr, layout->x + layout->x_padding + radius, layout->y + layout->y_padding + radius, radius, 90 * degree, 270 * degree);
+        cairo_arc(cr, layout->x + layout->width - layout->x_padding - radius, layout->y + layout->y_padding + radius, radius, 270 * degree, 450 * degree);
+        cairo_close_path(cr);
+
+        cairo_pattern_set_matrix(pattern, &matrix);
+        cairo_set_source(cr, pattern);
+        cairo_fill(cr);
+    }
 
     // Render border
-    color = layout->block->line_color;
-    cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a);
-    cairo_set_line_width(cr, layout->block->line_width);
-
-    cairo_new_sub_path(cr);
-    cairo_arc(cr, layout->x + layout->x_padding + radius, layout->y + layout->y_padding + radius, line_radius, 90 * degree, 270 * degree);
-    cairo_arc(cr, layout->x + layout->width - layout->x_padding - radius, layout->y + layout->y_padding + radius, line_radius, 270 * degree, 450 * degree);
-    cairo_close_path(cr);
-    cairo_stroke(cr);
+    pattern = layout->block->line_color.cached;
+    if (pattern != NULL) {
+        cairo_new_sub_path(cr);
+        cairo_arc(cr, layout->x + layout->x_padding + radius, layout->y + layout->y_padding + radius, line_radius, 90 * degree, 270 * degree);
+        cairo_arc(cr, layout->x + layout->width - layout->x_padding - radius, layout->y + layout->y_padding + radius, line_radius, 270 * degree, 450 * degree);
+        cairo_close_path(cr);
+
+        cairo_pattern_set_matrix(pattern, &matrix);
+        cairo_set_source(cr, pattern);
+        cairo_set_line_width(cr, layout->block->line_width);
+        cairo_stroke(cr);
+    }
 
     switch (layout->block->type) {
         case BLOCK_TEXT: {
@@ -126,7 +137,7 @@ void layout_render(layout_t *layout, cairo_t *cr)
             int text_x = layout->x + (layout->width  - layout->text_width) / 2;
             int text_y = layout->y + (layout->height - layout->text_height) / 2;
 
-            color = text->text_color;
+            color_t color = text->text_color;
             cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a);
             cairo_move_to(cr, text_x, text_y);