menu fixes, add periodic tick event, add repaint-when-needed

Core/Src/app_gui.c

@@ -12,6 +12,7 @@
 #include "queue.h"
 #include "ufb/framebuffer.h"
 #include "ufb/fb_text.h"
+#include "ufb/fb_7seg.h"
 
 #define MAX_TEMP 400
 
@@ -23,12 +24,18 @@ typedef void (*screen_t)(GuiEvent event);
 
 static struct State {
   float oven_temp;
-  float soc_temp;
+  //float soc_temp;
+
+  // manual mode controls
   int set_temp;
   int set_temp_wheel;
   bool heater_enabled;
+
   bool pushed;
+  bool paint_needed;
+  uint32_t last_tick_event;
   uint32_t push_tick;
+  uint32_t last_read_temp_tick;
   // true if the button is still held since init (i.e. the push action should not work as "enter")
   bool initial_pushed;
 
@@ -42,6 +49,10 @@ static uint32_t push_time() {
     return s_app.pushed ? (xTaskGetTickCount() - s_app.push_tick) : 0;
 }
 
+static void request_paint() {
+    s_app.paint_needed = true;
+}
+
 static void screen_home(GuiEvent event);
 
 static void screen_manual(GuiEvent event);
@@ -50,7 +61,7 @@ static void screen_manual_menu(GuiEvent event);
 
 static void draw_common_overlay();
 
-static void input_sound_effect(GuiEvent event);
+static void input_sound_effect();
 
 static void switch_screen(screen_t pScreen, bool init);
 
@@ -77,37 +88,59 @@ void app_task_gui(void *argument)
     ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
     PUTS("GUI task starts\r\n");
 
+    s_app.last_tick_event = xTaskGetTickCount();
+
     switch_screen(screen_home, true);
 
     while (1) {
-        s_app.oven_temp = app_temp_read_oven();
-        s_app.soc_temp = app_temp_read_soc();
+        s_app.paint_needed = false;
 
         uint32_t message = GUI_EVENT_NONE;
-        osMessageQueueGet(guiEventQueHandle, &message, NULL, pdMS_TO_TICKS(50));
+        int32_t ticks_remain = (int32_t) pdMS_TO_TICKS(10) - (int32_t)(xTaskGetTickCount() - s_app.last_tick_event);
+        if (ticks_remain < 0) {
+            ticks_remain = 0;
+        }
+        osMessageQueueGet(guiEventQueHandle, &message, NULL, ticks_remain);
+
+        uint32_t tickNow = xTaskGetTickCount();
+
+        // 10ms tick event
+        if (tickNow - s_app.last_tick_event > pdMS_TO_TICKS(10)) {
+            s_app.screen(GUI_EVENT_TICK);
+            s_app.last_tick_event = tickNow;
+        }
+
+        if (tickNow - s_app.last_read_temp_tick > pdMS_TO_TICKS(250)) {
+            s_app.oven_temp = app_temp_read_oven();
+            //s_app.soc_temp = app_temp_read_soc();
+            request_paint();
+            s_app.last_read_temp_tick = tickNow;
+        }
 
         switch (message) {
             case GUI_EVENT_KNOB_PRESS:
                 s_app.pushed = true;
-                s_app.push_tick = xTaskGetTickCount();
+                s_app.push_tick = tickNow;
                 break;
 
             case GUI_EVENT_KNOB_RELEASE:
                 s_app.pushed = false;
-                break;
 
-            default:
+                if (s_app.initial_pushed) {
+                    s_app.initial_pushed = false;
+                    message = GUI_EVENT_NONE;
+                }
                 break;
         }
 
-        if (s_app.initial_pushed && message == GUI_EVENT_KNOB_RELEASE) {
-            s_app.initial_pushed = false;
-        } else {
-            fb_clear();
-            draw_common_overlay();
-
+        if (message != GUI_EVENT_NONE) {
             s_app.screen(message);
+        }
 
+        if (s_app.paint_needed) {
+            fb_clear();
+            draw_common_overlay();
+            s_app.screen(GUI_EVENT_PAINT);
             fb_blit();
         }
     }
@@ -118,6 +151,7 @@ void app_task_gui(void *argument)
 static void switch_screen(screen_t pScreen, bool init) {
     s_app.initial_pushed = s_app.pushed;
     s_app.screen = pScreen;
+    request_paint();
 
     if (init) {
         pScreen(GUI_EVENT_SCREEN_INIT);
@@ -129,25 +163,16 @@ static void draw_common_overlay()
 {
     SPRINTF(tmp, "%3.1f°C →%3d°C", s_app.oven_temp, s_app.set_temp);
     fb_text(3, 3, tmp, FONT_3X5, 1);
-//
-//    SPRINTF(tmp, "Tsoc=%.1f°C", s_app.soc_temp);
-//    fb_text(3, 19, tmp, FONT_5X7, 1);
 
     if (s_app.heater_enabled) {
-        fb_frame(0, 0, FBW, FBH, 2, 1);
+        fb_frame(0, 0, FBW, 11, 2, 1);
     }
 }
 
 /** Play input sound effect if this is an input event */
-static void input_sound_effect(GuiEvent event)
+static void input_sound_effect()
 {
-    switch (event) {
-        case GUI_EVENT_KNOB_PLUS:
-        case GUI_EVENT_KNOB_MINUS:
-        case GUI_EVENT_KNOB_RELEASE:
-            app_buzzer_beep();
-            break;
-    }
+    app_buzzer_beep();
 }
 
 // ------------- home screen ----------------
@@ -183,7 +208,6 @@ static void screen_home(GuiEvent event)
 static void screen_manual(GuiEvent event)
 {
     if (event == GUI_EVENT_SCREEN_INIT) {
-        s_app.set_temp_wheel = 0;
         return;
     }
 
@@ -193,26 +217,33 @@ static void screen_manual(GuiEvent event)
         return;
     }
 
-    input_sound_effect(event);
-
     switch (event) {
         case GUI_EVENT_KNOB_RELEASE:
-            if (s_app.initial_pushed) {
-                s_app.initial_pushed = false;
-                break;
-            }
+            input_sound_effect();
             s_app.heater_enabled ^= 1;
             app_heater_enable(s_app.heater_enabled);
+            request_paint();
             break;
 
         case GUI_EVENT_KNOB_PLUS:
+            input_sound_effect();
             s_app.set_temp_wheel++;
             calc_set_temp();
+            request_paint();
             break;
 
         case GUI_EVENT_KNOB_MINUS:
+            input_sound_effect();
             s_app.set_temp_wheel--;
             calc_set_temp();
+            request_paint();
+            break;
+
+        case GUI_EVENT_PAINT:
+            fb_7seg_number(4, 40, 12, 20, 2, 2,
+                           1,
+                           s_app.set_temp, 3, 0
+                           );
             break;
     }
 }
@@ -233,7 +264,8 @@ static void manual_menu_cb(int opt) {
             break;
 
         case 1:
-            // Close menu
+            s_app.heater_enabled = false;
+            app_heater_enable(false);
             switch_screen(screen_home, true);
             break;
     }
@@ -265,32 +297,37 @@ void screen_menu(GuiEvent event, const char **options, menu_callback_t cb) {
         return;
     }
 
-    input_sound_effect(event);
-
-    for (int i = 0; i < s_app.menu_len; i++) {
-        fbcolor_t color = s_app.menu_pos != i;
-        fbpos_t y = 27 + i * 10;
-        fb_rect(0, y, 64, 10, !color);
-        fb_text(1, y + 1, options[i], FONT_5X7, color);
-        // ensure the text doesnt escape the screen
-        fb_vline(63, y, 10, !color);
-    }
-
     switch (event) {
         // the button is held! release is what activates the button
         case GUI_EVENT_KNOB_RELEASE:
+            input_sound_effect();
             cb(s_app.menu_pos);
             break;
 
         case GUI_EVENT_KNOB_PLUS:
             if (s_app.menu_pos < s_app.menu_len - 1) {
                 s_app.menu_pos++;
+                input_sound_effect();
+                request_paint();
             }
             break;
 
         case GUI_EVENT_KNOB_MINUS:
             if (s_app.menu_pos > 0) {
                 s_app.menu_pos--;
+                input_sound_effect();
+                request_paint();
+            }
+            break;
+
+        case GUI_EVENT_PAINT:
+            for (int i = 0; i < s_app.menu_len; i++) {
+                fbcolor_t color = s_app.menu_pos != i;
+                fbpos_t y = 27 + i * 10;
+                fb_rect(0, y, 64, 10, !color);
+                fb_text(1, y + 1, options[i], FONT_5X7, color);
+                // ensure the text doesnt escape the screen
+                fb_vline(63, y, 10, !color);
             }
             break;
     }

Core/Src/app_gui.h

@@ -16,8 +16,13 @@ void app_task_gui(void *argument);
 typedef enum GuiEvent {
   /// No event, zero; This is a default value.
   GUI_EVENT_NONE = 0,
+  /// Cause redraw
+  GUI_EVENT_PAINT = 0,
   /// Used as the argument when initing a screen
   GUI_EVENT_SCREEN_INIT = 1,
+  /// Time tick, used to carry timing to the screen functions.
+  /// This tick has 10ms interval
+  GUI_EVENT_TICK = 2,
   /// Knob rotate CW
   GUI_EVENT_KNOB_PLUS,
   /// Knob rotate CCW