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-rw-r--r--draw.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/draw.c b/draw.c
new file mode 100644
index 0000000..145df16
--- /dev/null
+++ b/draw.c
@@ -0,0 +1,71 @@
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
+ * (C)opyright MMVI-MMVII Sander van Dijk <a dot h dot vandijk at gmail dot com>
+ * See LICENSE file for license details.
+ */
+#include "dmenu.h"
+#include <string.h>
+
+/* extern */
+
+void
+drawtext(const char *text, unsigned long col[ColLast]) {
+ int x, y, w, h;
+ static char buf[256];
+ unsigned int len, olen;
+ XGCValues gcv;
+ XRectangle r = { dc.x, dc.y, dc.w, dc.h };
+
+ XSetForeground(dpy, dc.gc, col[ColBG]);
+ XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
+ if(!text)
+ return;
+ w = 0;
+ olen = len = strlen(text);
+ if(len >= sizeof buf)
+ len = sizeof buf - 1;
+ memcpy(buf, text, len);
+ buf[len] = 0;
+ h = dc.font.ascent + dc.font.descent;
+ y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
+ x = dc.x + (h / 2);
+ /* shorten text if necessary */
+ while(len && (w = textnw(buf, len)) > dc.w - h)
+ buf[--len] = 0;
+ if(len < olen) {
+ if(len > 1)
+ buf[len - 1] = '.';
+ if(len > 2)
+ buf[len - 2] = '.';
+ if(len > 3)
+ buf[len - 3] = '.';
+ }
+ if(w > dc.w)
+ return; /* too long */
+ gcv.foreground = col[ColFG];
+ if(dc.font.set) {
+ XChangeGC(dpy, dc.gc, GCForeground, &gcv);
+ XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc,
+ x, y, buf, len);
+ }
+ else {
+ gcv.font = dc.font.xfont->fid;
+ XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
+ XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
+ }
+}
+
+unsigned int
+textw(const char *text) {
+ return textnw(text, strlen(text)) + dc.font.height;
+}
+
+unsigned int
+textnw(const char *text, unsigned int len) {
+ XRectangle r;
+
+ if(dc.font.set) {
+ XmbTextExtents(dc.font.set, text, len, NULL, &r);
+ return r.width;
+ }
+ return XTextWidth(dc.font.xfont, text, len);
+}