1 files changed, 39 insertions, 0 deletions
diff --git a/fw/fe310/eos/eve/screen/view.c b/fw/fe310/eos/eve/screen/view.c
new file mode 100644
index 0000000..30229e5
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/view.c
@@ -0,0 +1,39 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+
+#include "screen.h"
+#include "window.h"
+#include "view.h"
+
+void eve_view_init(EVEView *view, EVEWindow *window, eve_view_touch_t touch, eve_view_draw_t draw, void *param) {
+    view->touch = touch;
+    view->draw = draw;
+    view->param = param;
+    view->window = window;
+    window->view = view;
+}
+
+void eve_view_stack_init(EVEViewStack *stack) {
+    memset(stack, 0, sizeof(EVEViewStack));
+}
+
+void eve_view_create(EVEWindow *window, EVEViewStack *stack, eve_view_constructor_t constructor) {
+    if (stack->level < EVE_VIEW_SIZE_STACK - 1) {
+        stack->constructor[stack->level] = constructor;
+        stack->level++;
+        constructor(window, stack);
+    }
+}
+
+void eve_view_destroy(EVEWindow *window, EVEViewStack *stack) {
+    if (stack->level > 1) {
+        eve_view_constructor_t constructor;
+
+        stack->level--;
+        constructor = stack->constructor[stack->level - 1];
+        constructor(window, stack);
+    }
+}