shithub: microui

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left/right to move slider

--- a/demo/plan9.c

+++ b/demo/plan9.c

@@ -110,6 +110,8 @@

 			case Kbs: nkey = MU_KEY_BACKSPACE; break;

 			case '\n': nkey = MU_KEY_RETURN; break;

 			case Knack: nkey = MU_KEY_NACK; break;

+			case Kleft: nkey = MU_KEY_LEFT; break;

+			case Kright: nkey = MU_KEY_RIGHT; break;

 			case Kesc: mu_set_focus(ctx, 0); break;

 			default:

 				if (key < 0xf000 || key > 0xffff) {

--- a/src/microui.c

+++ b/src/microui.c

@@ -868,10 +868,21 @@

   mu_update_control(ctx, id, base, opt);

   /* handle input */

-  if (ctx->focus == id && ctx->mouse_down == MU_MOUSE_LEFT) {

-    v = low + ((mu_Real) (ctx->mouse_pos.x - base.x) / base.w) * (high - low);

-    if (step) { v = ((long) ((v + step/2) / step)) * step; }

+  if (ctx->focus == id) {

+    if (ctx->mouse_down == MU_MOUSE_LEFT) {

+      v = low + ((mu_Real) (ctx->mouse_pos.x - base.x) / base.w) * (high - low);

+    }

+  } else if (ctx->hover == id) {

+    if ((ctx->key_pressed & (MU_KEY_LEFT | MU_KEY_RIGHT)) == MU_KEY_LEFT) {

+      v -= step ? step : 1;

+      if (v < low) v = low;

+    } else if ((ctx->key_pressed & (MU_KEY_LEFT | MU_KEY_RIGHT)) == MU_KEY_RIGHT) {

+      v += step ? step : 1;

+      if (v > high) v = high;

+    }

   }

+

+  if (step) { v = ((long) ((v + step/2) / step)) * step; }

   /* clamp and store value, update res */

   *value = v = mu_clamp(v, low, high);

   if (last != v) { res |= MU_RES_CHANGE; }

--- a/src/microui.h

+++ b/src/microui.h

@@ -112,6 +112,8 @@

   MU_KEY_BACKSPACE    = (1 << 3),

   MU_KEY_RETURN       = (1 << 4),

   MU_KEY_NACK         = (1 << 5),

+  MU_KEY_LEFT         = (1 << 6),

+  MU_KEY_RIGHT        = (1 << 7),

 };