Cleanup wayland renderer and plugin support.

1 files changed, 101 insertions, 0 deletions

diff --git a/lib/renderers/cairo.h b/lib/renderers/cairo.h
new file mode 100644
index 0000000..9c1ff5a
--- /dev/null
+++ b/lib/renderers/cairo.h
@@ -0,0 +1,101 @@
+#ifndef _BM_CAIRO_H_
+#define _BM_CAIRO_H_
+
+#include "internal.h"
+#include <string.h>
+#include <assert.h>
+#include <cairo/cairo.h>
+
+struct cairo {
+    cairo_t *cr;
+    cairo_surface_t *surface;
+};
+
+struct cairo_color {
+    float r, g, b, a;
+};
+
+struct cairo_font {
+    const char *name;
+    uint32_t size;
+};
+
+struct cairo_paint {
+    struct cairo_color color;
+    struct cairo_font font;
+};
+
+struct cairo_result {
+    cairo_text_extents_t te;
+};
+
+__attribute__((unused)) BM_LOG_ATTR(6, 7) static bool
+bm_cairo_draw_line(struct cairo *cairo, struct cairo_paint *paint, struct cairo_result *result, int32_t x, int32_t y, const char *fmt, ...)
+{
+    static size_t blen = 0;
+    static char *buffer = NULL;
+    assert(cairo && paint && result && fmt);
+    memset(result, 0, sizeof(struct cairo_result));
+
+    va_list args;
+    va_start(args, fmt);
+    bool ret = bm_vrprintf(&buffer, &blen, fmt, args);
+    va_end(args);
+
+    if (!ret)
+        return false;
+
+    cairo_set_source_rgba(cairo->cr, paint->color.r, paint->color.b, paint->color.g, paint->color.a);
+
+    cairo_text_extents_t te;
+    cairo_select_font_face(cairo->cr, paint->font.name, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
+    cairo_set_font_size(cairo->cr, paint->font.size);
+    cairo_text_extents(cairo->cr, buffer, &te);
+    cairo_move_to(cairo->cr, x, y * te.height + te.height);
+    cairo_show_text(cairo->cr, buffer);
+
+    memcpy(&result->te, &te, sizeof(te));
+    return true;
+}
+
+__attribute__((unused)) static void
+bm_cairo_paint(struct cairo *cairo, uint32_t width, uint32_t height, const struct bm_menu *menu)
+{
+    cairo_set_source_rgb(cairo->cr, 18.0f / 255.0f, 18 / 255.0f, 18.0f / 255.0f);
+    cairo_rectangle(cairo->cr, 0, 0, width, height);
+    cairo_fill(cairo->cr);
+
+    struct cairo_result result;
+    memset(&result, 0, sizeof(result));
+
+    struct cairo_paint paint;
+    memset(&paint, 0, sizeof(paint));
+    paint.font.name = "Terminus";
+    paint.font.size = 12;
+    paint.color = (struct cairo_color){ 1.0, 0.0, 0.0, 1.0 };
+
+    if (menu->title)
+        bm_cairo_draw_line(cairo, &paint, &result, result.te.x_advance, 0, "%s ", menu->title);
+    if (menu->filter)
+        bm_cairo_draw_line(cairo, &paint, &result, result.te.x_advance, 0, "%s", menu->filter);
+
+    uint32_t count, cl = 1;
+    uint32_t lines = height / paint.font.size;
+    struct bm_item **items = bm_menu_get_filtered_items(menu, &count);
+    for (uint32_t i = (menu->index / (lines - 1)) * (lines - 1); i < count && cl < lines; ++i) {
+        bool highlighted = (items[i] == bm_menu_get_highlighted_item(menu));
+
+        if (highlighted)
+            paint.color = (struct cairo_color){ 1.0, 0.0, 0.0, 1.0 };
+        else if (bm_menu_item_is_selected(menu, items[i]))
+            paint.color = (struct cairo_color){ 1.0, 0.0, 0.0, 1.0 };
+        else
+            paint.color = (struct cairo_color){ 1.0, 1.0, 1.0, 1.0 };
+
+        bm_cairo_draw_line(cairo, &paint, &result, 0, cl++, "%s%s", (highlighted ? ">> " : "   "), (items[i]->text ? items[i]->text : ""));
+    }
+}
+
+#endif /* _BM_CAIRO_H */
+
+/* vim: set ts=8 sw=4 tw=0 :*/