Merge pull request #238 from andrewjswan/2024.6.1-multicolor_text-mod…

…e-improve

2024.6.1: In `multicolor_text` mode, added the ability to reset to default color, improved documentation.

README.md

@@ -387,14 +387,20 @@ ehmtxv2:
 service: esphome.ulanzi_text_screen
 data:
  default_font: true
- text: "Test Test #00FF00Test #FF0000Test #0000FFTest"
+ text: "Default Color Text #00FF00Green Color Text #FF0000Red Color Text #0000FFBlue Color Text #000000Default Color Text"
  lifetime: 2
  screen_time: 10
  r: 255
  g: 255
  b: 255
 ```
-Shows text in different colors, `Test Test` in the default color `#FFFFFF` (r: 255, g:255, b: 255), followed by `Test` in green `#00FF00`, then `Test` in red `#FF0000` and finally `Test` in blue `#0000FF`.
+Shows text in different colors, `Default Color Text` in the default color `#FFFFFF` (r: 255, g:255, b: 255), followed by `Green Color Text` in green `#00FF00`, then `Red Color Text` in red `#FF0000`, then `Blue Color Text` in blue `#0000FF` and finally `Default Color Text` in default color, due `#000000`.
+
+> [!WARNING]
+> In this mode, with a large number of color changes, or with long lines, a short-term decrease in performance is possible.
+>
+> ```[13:26:02][W][component:237]: Component display took a long time for an operation (55 ms).```
+> ```[13:26:02][W][component:238]: Components should block for at most 30 ms.```
 
 **icons2html** (optional, boolean): If true, generate the HTML-file (*filename*.html) to show all included icons. (default = `false`)
 

components/ehmtxv2/EHMTX.cpp

@@ -2736,8 +2736,8 @@ namespace esphome
  }
  else
  {
- this->display->printf(x, ypos, font, c_, display::TextAlign::BASELINE_LEFT, "%s", parts.at(i).c_str());
- }
+  this->display->printf(x, ypos, font, c_, display::TextAlign::BASELINE_LEFT, "%s", parts.at(i).c_str());
+  }
  }
  else if (i == 2) // Minutes
  {
@@ -2939,7 +2939,14 @@ namespace esphome
  int r, g, b;
  if (res.at(i).length() == 7 && std::regex_match(res.at(i), is_color) && sscanf(&res.at(i).c_str()[1], "%02x%02x%02x", &r, &g, &b))
  {
- c = Color(r, g ,b);
+ if (r + g + b > 0)
+ {
+ c = Color(r, g ,b);
+ }
+ else
+ {
+ c = color;
+ }
  }
  else
  {