最初コミット

src/display.c

@@ -0,0 +1,30 @@
+#include "display.h"
+#include "program.h"
+
+#include <string.h>
+
+void drawbuttons(Display *dpy, Drawable target, GC gc, SuwaButton *btn,
+    XftDraw *xftdraw, XftColor *textcolor, XftFont *font) {
+  unsigned long curbg = btn->pressed ? BTSEL : BTCOL;
+  XSetForeground(dpy, gc, curbg);
+  XFillRectangle(dpy, target, gc, btn->x, btn->y, btn->width, btn->height);
+
+  // 文字の中央に
+  if (btn->label && font && xftdraw) {
+    const FcChar8 *str = (const FcChar8 *)btn->label;
+    int len = strlen((const char *)str);
+
+    XGlyphInfo extents;
+    XftTextExtentsUtf8(dpy, font, str, len, &extents);
+
+    int text_w = extents.xOff;
+    int text_h = font->ascent + font->descent;
+
+    int tx = btn->x + (btn->width - text_w) / 2;
+    int ty = btn->y + (btn->height - text_h) / 2 + font->ascent;
+
+    // tx -= extents.x;
+
+    XftDrawStringUtf8(xftdraw, textcolor, font, tx, ty, (FcChar8 *)btn->label, len);
+  }
+}