From 1e5eb7cb910e6f23c69c2c986b6373e9f9abb980 Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Sun, 23 Aug 2020 22:37:16 +0200
Subject: dynamic memory alloc for gui added; page navigation added

---
 fw/fe310/eos/eve/screen/page.h | 25 +++++++++++++++++++------
 1 file changed, 19 insertions(+), 6 deletions(-)

(limited to 'fw/fe310/eos/eve/screen/page.h')

diff --git a/fw/fe310/eos/eve/screen/page.h b/fw/fe310/eos/eve/screen/page.h
index eebedfd..227375c 100644
--- a/fw/fe310/eos/eve/screen/page.h
+++ b/fw/fe310/eos/eve/screen/page.h
@@ -1,25 +1,38 @@
 #include <stdint.h>
 
+#define EVE_PAGE_SIZE_STACK     16
+
 struct EVEPage;
 struct EVEWidget;
+struct EVEPageStack;
 
-typedef void (*eve_page_open_t) (struct EVEPage *, struct EVEPage *);
-typedef void (*eve_page_close_t) (struct EVEPage *);
-typedef void (*eve_page_evt_handler_t) (struct EVEPage *, struct EVEWidget *, EVETouch *, uint16_t, uint8_t, int);
+typedef void (*eve_page_constructor_t) (EVEWindow *window, struct EVEPageStack *);
+typedef void (*eve_page_destructor_t) (struct EVEPage *);
+typedef int (*eve_page_evt_handler_t) (struct EVEPage *, struct EVEWidget *, EVETouch *, uint16_t, uint8_t, int);
 typedef void (*eve_page_g_updater_t) (struct EVEPage *, struct EVEWidget *);
 
 typedef struct EVEPage {
     EVEView v;
     int16_t win_x;
     int16_t win_y;
-    eve_page_open_t open;
-    eve_page_close_t close;
     eve_page_evt_handler_t handle_evt;
     eve_page_g_updater_t update_g;
+    eve_page_destructor_t destructor;
+    struct EVEPageStack *stack;
     struct EVEWidget *widget_f;
 } EVEPage;
 
-void eve_page_init(EVEPage *page, EVEWindow *window, eve_view_touch_t touch, eve_view_draw_t draw, eve_page_open_t open, eve_page_close_t close, eve_page_evt_handler_t handle_evt, eve_page_g_updater_t update_g);
+typedef struct EVEPageStack {
+    eve_page_constructor_t constructor[EVE_PAGE_SIZE_STACK];
+    uint8_t level;
+} EVEPageStack;
+
+void eve_page_init(EVEPage *page, EVEWindow *window, EVEPageStack *stack, eve_view_touch_t touch, eve_view_draw_t draw, eve_page_evt_handler_t handle_evt, eve_page_g_updater_t update_g, eve_page_destructor_t destructor);
+void eve_page_stack_init(EVEPageStack *stack);
+void eve_page_create(EVEWindow *window, EVEPageStack *stack, eve_page_constructor_t constructor);
+void eve_page_open(EVEPage *parent, eve_page_constructor_t constructor);
+void eve_page_close(EVEPage *page);
+
 int16_t eve_page_x(EVEPage *page, int16_t x);
 int16_t eve_page_y(EVEPage *page, int16_t y);
 int16_t eve_page_scr_x(EVEPage *page, int16_t x);
-- 
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