text can now be drawed on screen

ledy.ino

@@ -11,22 +11,76 @@
  #include <avr/power.h> // Required for 16 MHz Adafruit Trinket
 #endif
 
-
 Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
 
+TextNode text_nodes[MAX_TEXT_NODES_COUNT];
+
+void addNewTextNode
+  (
+    char text[TEXT_MAX_LENGTH + 1], uint32_t color = 0x00010101, unsigned short pos_x = 65535, unsigned short pos_y = 0,
+    bool is_small = true
+  )
+{
+  unsigned char text_length = strlen(text);
+  if (text_length == 0){return;}
+  for (unsigned char i = 0; i < MAX_TEXT_NODES_COUNT; i++)
+  {
+    if (text_nodes[i].is_deleted)
+    {
+      strncpy(text_nodes[i].content, text, TEXT_MAX_LENGTH);
+      text_nodes[i].color = color;
+      text_nodes[i].pos_x = (pos_x == 65535) ? PANEL_MAX_X + 1 : pos_x;
+      text_nodes[i].pos_y = pos_y;
+      text_nodes[i].characterSize.height = is_small ? SMALL_TEXT_HEIGHT : MEDIUM_TEXT_HEIGHT;
+      text_nodes[i].characterSize.width = is_small ? SMALL_TEXT_WIDTH : MEDIUM_TEXT_WIDTH;
+      text_nodes[i].character_count = text_length;
+      text_nodes[i].is_deleted = false;
+      break;
+    }
+  }
+}
+
+void drawTextNodes()
+{
+  for (unsigned char i = 0; i < MAX_TEXT_NODES_COUNT; i++)
+  {
+    if (!text_nodes[i].is_deleted)
+    {
+      Cursor cursor;
+      cursor.x = text_nodes[i].pos_x;
+      cursor.y = text_nodes[i].pos_y;
+
+      for (unsigned char j = 0; j < text_nodes[i].character_count; j++)
+      {
+        char ch = text_nodes[i].content[j];
+        if (ch < '!' || ch > '~')
+        {
+          ch = ' ';
+        }
+        drawCharacter(font7x5[ch - '!'], text_nodes[i].characterSize.height, text_nodes[i].characterSize.width, text_nodes[i].color, &cursor);
+      }
+    }
+  }
+}
+
+// void scrollTextNodeByAmount(unsigned )
+
 void setup()
 {
   Serial.begin(115200);
 
   pixels.begin();
   pixels.clear();
-  drawCharacter(font7x5['A' - '!'], 7, 5, 0x00010101, &cursor1);
+
+  addNewTextNode("TEst", 0x0001700, 0, 0, true);
+  drawTextNodes();
   pixels.show();
   start_server();
 }
 
 void loop()
 {
+  shiftGivenRectangle(0, 0, 23, 7, 1);
   pixels.show();
   handle_server();
 }