X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=instimg;a=blobdiff_plain;f=src%2Fwidgets.c;h=2ad99839ba307f6fd653273fc949cd3081fbb4df;hp=2c08856c53ac3241b296138f70594404b64270a8;hb=9f8f8c6cde6f5d9174aa8bc88f530436aecb70d9;hpb=d9e1c38ba7dc1bb25604586a197b794983e28d78

diff --git a/src/widgets.c b/src/widgets.c
index 2c08856..2ad9983 100644
--- a/src/widgets.c
+++ b/src/widgets.c
@@ -24,6 +24,8 @@ struct wgt_widget {
 	char **itemlist;
 	int num_items;
 
+	int disabled;
+
 	wgt_callback cb_click;
 	wgt_callback cb_modify;
 };
@@ -118,6 +120,23 @@ void wgt_destroy_widget(struct wgt_widget *w)
 	free(w->itemlist);
 }
 
+void wgt_enable_widget(struct wgt_widget *w)
+{
+	w->disabled = 0;
+	EnableWindow(w->handle, 1);
+}
+
+void wgt_disable_widget(struct wgt_widget *w)
+{
+	w->disabled = 1;
+	EnableWindow(w->handle, 0);
+}
+
+int wgt_widget_enabled(struct wgt_widget *w)
+{
+	return !w->disabled;
+}
+
 struct wgt_window *wgt_widget_window(struct wgt_widget *w)
 {
 	return w->win;
@@ -266,12 +285,37 @@ struct wgt_widget *wgt_checkbox(struct wgt_window *win, const char *text, int on
 	return w;
 }
 
+static void combosize(struct wgt_window *win, const char **items, int num_items,
+		int width, int height, struct wgt_rect *sz)
+{
+	int i, max_width, max_height, sum_height;
+	struct wgt_rect textsz;
+
+	wgt_string_size(win, "00", &textsz);
+	max_width = width < 0 && width != WGT_AUTO ? -width : textsz.width;
+	max_height = height < 0 && height != WGT_AUTO ? -height : textsz.height;
+	sum_height = num_items ? 0 : max_height;
+
+	for(i=0; i<num_items; i++) {
+		wgt_string_size(win, items[i], &textsz);
+		if(textsz.width > max_width) max_width = textsz.width;
+		if(textsz.height > max_height) max_height = textsz.height;
+		sum_height += textsz.height;
+	}
+	if(width < 0) width = max_width * 3 / 2;
+	if(height < 0) height = sum_height * 2;
+
+	sz->width = width;
+	sz->y = max_height;
+	sz->height = height;
+}
+
 struct wgt_widget *wgt_combo(struct wgt_window *win, const char **items, int num_items,
 			int sel, int x, int y, int width, int height, wgt_callback modfunc)
 {
-	int i, max_width, max_height, sum_height, res;
+	int i, res;
 	struct wgt_widget *w;
-	struct wgt_rect textsz;
+	struct wgt_rect rect;
 
 	if(!(w = calloc(1, sizeof *w))) {
 		fprintf(stderr, "wgt_combo: failed to allocate widget structure\n");
@@ -285,21 +329,11 @@ struct wgt_widget *wgt_combo(struct wgt_window *win, const char **items, int num
 		return 0;
 	}
 
-	max_width = max_height = sum_height = 0;
-
-	for(i=0; i<num_items; i++) {
-		wgt_string_size(win, items[i], &textsz);
-		if(textsz.width > max_width) max_width = textsz.width;
-		if(textsz.height > max_height) max_height = textsz.height;
-		sum_height += textsz.height;
-	}
-	if(width < 0) width = max_width * 3 / 2;
-	if(height < 0) height = sum_height * 2;
-
+	combosize(win, items, num_items, width, height, &rect);
 
-	if(!(w->handle = CreateWindow("COMBOBOX", items[0],
+	if(!(w->handle = CreateWindow("COMBOBOX", items[0] ? items[0] : "",
 			WS_CHILD | WS_VISIBLE | CBS_DROPDOWNLIST | CBS_HASSTRINGS,
-			x, y, width, height, win->handle, 0, GetModuleHandle(0), 0))) {
+			x, y, rect.width, rect.height, win->handle, 0, GetModuleHandle(0), 0))) {
 		fprintf(stderr, "wgt_combo: failed to create window\n");
 		free(w);
 		return 0;
@@ -322,12 +356,14 @@ struct wgt_widget *wgt_combo(struct wgt_window *win, const char **items, int num
 
 	if(sel < 0) sel = 0;
 	if(sel >= num_items) sel = num_items - 1;
-	SendMessage(w->handle, CB_SETCURSEL, sel, 0);
+	if(sel >= 0) {
+		SendMessage(w->handle, CB_SETCURSEL, sel, 0);
+	}
 
 	w->rect.x = x;
 	w->rect.y = y;
-	w->rect.width = width;
-	w->rect.height = max_height;
+	w->rect.width = rect.width;
+	w->rect.height = rect.y;	/* single line height for layout purposes */
 
 	w->cb_modify = modfunc;
 	w->next = win->wlist;
@@ -335,6 +371,60 @@ struct wgt_widget *wgt_combo(struct wgt_window *win, const char **items, int num
 	return w;
 }
 
+void wgt_checkbox_check(struct wgt_widget *w)
+{
+	SendMessage(w->handle, BM_SETCHECK, BST_CHECKED, 0);
+}
+
+void wgt_checkbox_uncheck(struct wgt_widget *w)
+{
+	SendMessage(w->handle, BM_SETCHECK, BST_UNCHECKED, 0);
+}
+
+int wgt_checkbox_checked(struct wgt_widget *w)
+{
+	return SendMessage(w->handle, BM_GETCHECK, 0, 0) == BST_CHECKED;
+}
+
+int wgt_combo_setitems(struct wgt_widget *w, const char **items, int num_items)
+{
+	int i;
+	char **newit;
+	struct wgt_rect size;
+
+	if(!(newit = malloc(num_items * sizeof *newit))) {
+		fprintf(stderr, "wgt_combo_setitems: failed to allocate item list\n");
+		return -1;
+	}
+	for(i=0; i<num_items; i++) {
+		if(!(newit[i] = strdup(items[i]))) {
+			fprintf(stderr, "wgt_combo_setitems: failed to allocate item\n");
+			while(--i >= 0) {
+				free(newit[i]);
+			}
+			free(newit);
+			return -1;
+		}
+	}
+
+	for(i=0; i<w->num_items; i++) {
+		free(w->itemlist[i]);
+	}
+	free(w->itemlist);
+	SendMessage(w->handle, CB_RESETCONTENT, 0, 0);
+
+	w->itemlist = newit;
+	w->num_items = num_items;
+
+	for(i=0; i<num_items; i++) {
+		SendMessage(w->handle, CB_ADDSTRING, 0, (long)w->itemlist[i]);
+	}
+
+	combosize(w->win, items, num_items, w->rect.width, WGT_AUTO, &size);
+	MoveWindow(w->handle, w->rect.x, w->rect.y, w->rect.width, size.height, TRUE);
+	return 0;
+}
+
 int wgt_combo_selected(struct wgt_widget *w)
 {
 	int sel = SendMessage(w->handle, CB_GETCURSEL, 0, 0);