# HG changeset patch
# User John Tsiombikas <nuclear@siggraph.org>
# Date 1303191383 -10800
# Node ID ac2a8d8fca9ad442b69d33832e394f9d1066ee9f
# Parent  1cf212375db338874266553ea3fdd60d991acce7
naturally I forgot to add listbox.c

diff -r 1cf212375db3 -r ac2a8d8fca9a src/listbox.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/listbox.c	Tue Apr 19 08:36:23 2011 +0300
@@ -0,0 +1,129 @@
+#include <string.h>
+#include <stdarg.h>
+#include <assert.h>
+#include "imtk.h"
+#include "state.h"
+#include "draw.h"
+
+#define ITEM_HEIGHT		18
+#define PAD				3
+
+static void draw_listbox(int id, const char *list, int sel, int x, int y, int width, int nitems, int over);
+
+int imtk_listbox(int id, const char *list, int sel, int x, int y)
+{
+	int i, max_width, nitems, over;
+	const char *ptr;
+
+	assert(id >= 0);
+
+	max_width = 0;
+	over = 0;
+
+	ptr = list;
+	for(i=0; *ptr; i++) {
+		int strsz = imtk_string_size(ptr) + 2 * PAD;
+		if(strsz > max_width) {
+			max_width = strsz;
+		}
+		ptr += strlen(ptr) + 1;
+
+		if(imtk_hit_test(x, y + i * ITEM_HEIGHT, max_width, ITEM_HEIGHT)) {
+			imtk_set_hot(id);
+			over = i + 1;
+		}
+	}
+	nitems = i;
+
+	if(imtk_button_state(IMTK_LEFT_BUTTON)) {
+		if(over) {
+			imtk_set_active(id);
+		}
+	} else {
+		if(imtk_is_active(id)) {
+			imtk_set_active(-1);
+			if(imtk_is_hot(id) && over) {
+				sel = over - 1;
+			}
+		}
+	}
+
+	draw_listbox(id, list, sel, x, y, max_width, nitems, over);
+	return sel;
+}
+
+char *imtk_create_list(const char *first, ...)
+{
+	int sz;
+	char *buf, *item;
+	va_list ap;
+
+	if(!first) {
+		return 0;
+	}
+
+	sz = strlen(first) + 2;
+	if(!(buf = malloc(sz))) {
+		return 0;
+	}
+	memcpy(buf, first, sz - 2);
+	buf[sz - 1] = buf[sz - 2] = 0;
+
+	va_start(ap, first);
+	while((item = va_arg(ap, char*))) {
+		int len = strlen(item);
+		char *tmp = realloc(buf, sz + len + 1);
+		if(!tmp) {
+			free(buf);
+			return 0;
+		}
+		buf = tmp;
+
+		memcpy(buf + sz - 1, item, len);
+		sz += len + 1;
+		buf[sz - 1] = buf[sz - 2] = 0;
+	}
+	va_end(ap);
+
+	return buf;
+}
+
+void imtk_free_list(char *list)
+{
+	free(list);
+}
+
+static void draw_listbox(int id, const char *list, int sel, int x, int y, int width, int nitems, int over)
+{
+	int i;
+	const char *item = list;
+
+	glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
+
+	for(i=0; i<nitems; i++) {
+		int item_y = i * ITEM_HEIGHT + y;
+		unsigned int attr = 0;
+		float tcol[4], bcol[4];
+
+		if(over - 1 == i) {
+			attr |= IMTK_FOCUS_BIT;
+		}
+
+		if(sel == i) {
+			attr |= IMTK_SEL_BIT;
+			memcpy(tcol, imtk_get_color(IMTK_TOP_COLOR | attr), sizeof tcol);
+			memcpy(bcol, imtk_get_color(IMTK_BOTTOM_COLOR | attr), sizeof bcol);
+		} else {
+			memcpy(tcol, imtk_get_color(IMTK_BOTTOM_COLOR | attr), sizeof tcol);
+			memcpy(bcol, imtk_get_color(IMTK_BOTTOM_COLOR | attr), sizeof bcol);
+		}
+
+		imtk_draw_rect(x, item_y, width, ITEM_HEIGHT, tcol, bcol);
+
+		glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
+		imtk_draw_string(x + 3, item_y + ITEM_HEIGHT - 5, item);
+		item += strlen(item) + 1;
+	}
+
+	imtk_draw_frame(x, y, width, ITEM_HEIGHT * nitems, FRAME_INSET);
+}