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Code Issues Releases Wiki Activity

Add the on_page_change display trigger (#1687)

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Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
Stanislav Meduna
2021-05-23 22:56:04 +02:00
committed by GitHub
parent cccb1a2c9e
commit 072dce340e
4 changed files with 68 additions and 2 deletions
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13
esphome/components/display/display_buffer.cpp
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@@ -315,7 +315,14 @@ void DisplayBuffer::set_pages(std::vector<DisplayPage *> pages) {
pages[pages.size() - 1]->set_next(pages[0]);
this->show_page(pages[0]);
}
void DisplayBuffer::show_page(DisplayPage *page) { this->page_ = page; }
void DisplayBuffer::show_page(DisplayPage *page) {
this->previous_page_ = this->page_;
this->page_ = page;
if (this->previous_page_ != this->page_) {
for (auto *t : on_page_change_triggers_)
t->process(this->previous_page_, this->page_);
}
}
void DisplayBuffer::show_next_page() { this->page_->show_next(); }
void DisplayBuffer::show_prev_page() { this->page_->show_prev(); }
void DisplayBuffer::do_update_() {
@@ -326,6 +333,10 @@ void DisplayBuffer::do_update_() {
(*this->writer_)(*this);
}
}
void DisplayOnPageChangeTrigger::process(DisplayPage *from, DisplayPage *to) {
if ((this->from_ == nullptr || this->from_ == from) && (this->to_ == nullptr || this->to_ == to))
this->trigger(from, to);
}
#ifdef USE_TIME
void DisplayBuffer::strftime(int x, int y, Font *font, Color color, TextAlign align, const char *format,
time::ESPTime time) {