Implement status line

Does not yet support i3bar json protocol

1 files changed, 56 insertions, 0 deletions

diff --git a/swaybar/render.c b/swaybar/render.c
index f797873c..ec1239a1 100644
--- a/swaybar/render.c
+++ b/swaybar/render.c
@@ -9,12 +9,59 @@
 #include "swaybar/bar.h"
 #include "swaybar/config.h"
 #include "swaybar/render.h"
+#include "swaybar/status_line.h"
 #include "wlr-layer-shell-unstable-v1-client-protocol.h"
 
 static const int ws_horizontal_padding = 5;
 static const double ws_vertical_padding = 1.5;
 static const double border_width = 1;
 
+static uint32_t render_status_line_text(cairo_t *cairo,
+                struct swaybar_config *config, struct status_line *status,
+                bool focused, uint32_t width, uint32_t height) {
+        if (!status->text) {
+                return 0;
+        }
+        //wlr_log(L_DEBUG, "focused %d", focused);
+        cairo_set_source_u32(cairo, focused ?
+                        config->colors.focused_statusline : config->colors.statusline);
+        static const int margin = 3;
+        int text_width, text_height;
+        get_text_size(cairo, config->font, &text_width, &text_height,
+                        1, config->pango_markup, "%s", status->text);
+        uint32_t ideal_height = text_height + ws_vertical_padding * 2;
+        if (height < ideal_height) {
+                height = ideal_height;
+        }
+        double text_y = height / 2.0 - text_height / 2.0;
+        cairo_move_to(cairo, width - text_width - margin, (int)floor(text_y));
+        pango_printf(cairo, config->font, 1, config->pango_markup,
+                        "%s", status->text);
+        return ideal_height;
+}
+
+static uint32_t render_status_line_i3bar(cairo_t *cairo,
+                struct swaybar_config *config, struct status_line *status,
+                bool focused, uint32_t width, uint32_t height) {
+        // TODO
+        return 0;
+}
+
+static uint32_t render_status_line(cairo_t *cairo,
+                struct swaybar_config *config, struct status_line *status,
+                bool focused, uint32_t width, uint32_t height) {
+        switch (status->protocol) {
+        case PROTOCOL_TEXT:
+                return render_status_line_text(cairo,
+                                config, status, focused, width, height);
+        case PROTOCOL_I3BAR:
+                return render_status_line_i3bar(cairo,
+                                config, status, focused, width, height);
+        default:
+                return 0;
+        }
+}
+
 static uint32_t render_binding_mode_indicator(cairo_t *cairo,
                 struct swaybar_config *config, const char *mode, double x,
                 uint32_t height) {
@@ -148,6 +195,11 @@ static uint32_t render_to_cairo(cairo_t *cairo,
                                 cairo, config, config->mode, x, output->height);
                 max_height = h > max_height ? h : max_height;
         }
+        if (bar->status) {
+                uint32_t h = render_status_line(cairo, config, bar->status,
+                                output->focused, output->width, output->height);
+                max_height = h > max_height ? h : max_height;
+        }
 
         return max_height > output->height ? max_height : output->height;
 }
@@ -157,6 +209,10 @@ void render_frame(struct swaybar *bar,
         cairo_surface_t *recorder = cairo_recording_surface_create(
                         CAIRO_CONTENT_COLOR_ALPHA, NULL);
         cairo_t *cairo = cairo_create(recorder);
+        cairo_save(cairo);
+        cairo_set_operator(cairo, CAIRO_OPERATOR_CLEAR);
+        cairo_paint(cairo);
+        cairo_restore(cairo);
         uint32_t height = render_to_cairo(cairo, bar, output);
         if (bar->config->height >= 0 && height < (uint32_t)bar->config->height) {
                 height = bar->config->height;