X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=demo_prior;a=blobdiff_plain;f=src%2Fimtk%2Flistbox.c;fp=src%2Fimtk%2Flistbox.c;h=74dd7aa4d9ac47bdbac97f4f4ab41e757a42ba1a;hp=0000000000000000000000000000000000000000;hb=2f14a35e7d557da12f24056267b911f24774aa18;hpb=5eefe7b94c8d6c6caa2c10e3835ab0831a3c42a1

diff --git a/src/imtk/listbox.c b/src/imtk/listbox.c
new file mode 100644
index 0000000..74dd7aa
--- /dev/null
+++ b/src/imtk/listbox.c
@@ -0,0 +1,181 @@
+#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 int list_radio(int id, const char *list, int sel, int x, int y, void (*draw)());
+static void draw_listbox(int id, const char *list, int sel, int x, int y, int width, int nitems, int over);
+static void draw_radio(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)
+{
+	return list_radio(id, list, sel, x, y, draw_listbox);
+}
+
+int imtk_radiogroup(int id, const char *list, int sel, int x, int y)
+{
+	return list_radio(id, list, sel, x, y, draw_radio);
+}
+
+static int list_radio(int id, const char *list, int sel, int x, int y, void (*draw)())
+{
+	int i, max_width, nitems, over;
+	const char *ptr;
+
+	assert(id >= 0);
+
+	if(x == IMTK_AUTO || y == IMTK_AUTO) {
+		imtk_layout_get_pos(&x, &y);
+	}
+
+	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(id, list, sel, x, y, max_width, nitems, over);
+	imtk_layout_advance(max_width, ITEM_HEIGHT * nitems);
+	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);
+}
+
+static void draw_radio(int id, const char *list, int sel, int x, int y, int width, int nitems, int over)
+{
+	int i;
+	const char *item = list;
+	float rad = ITEM_HEIGHT * 0.5;
+
+	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;
+		}
+
+		imtk_draw_disc_frame(x + rad, item_y + rad, rad * 0.9, rad * 0.75, 5, FRAME_INSET);
+
+		memcpy(tcol, imtk_get_color(IMTK_BOTTOM_COLOR | attr), sizeof tcol);
+		memcpy(bcol, imtk_get_color(IMTK_TOP_COLOR | attr), sizeof bcol);
+		imtk_draw_disc(x + rad, item_y + rad, rad * 0.75, 5, tcol, bcol);
+
+		if(i == sel) {
+			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);
+
+			imtk_draw_disc(x + rad, item_y + ITEM_HEIGHT / 2, rad * 0.6, 5, tcol, bcol);
+		}
+
+		glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
+		imtk_draw_string(x + rad * 2.0 + 3, item_y + ITEM_HEIGHT - 5, item);
+		item += strlen(item) + 1;
+	}
+}