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Allow partially looping animations (#4693)

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Add the possibility of specifying a "loop" in an animation; where the
requested frames (start - end) will be repeateadly shown for "count" times.
This commit is contained in:
guillempages
2023-05-25 16:49:52 -05:00
committed by GitHub
parent bb044a789c
commit 9cd173ef83
3 changed files with 53 additions and 5 deletions
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esphome/components/display/display_buffer.cpp
+21 -2
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@@ -773,12 +773,31 @@ Color Animation::get_grayscale_pixel(int x, int y) const {
return Color(gray, gray, gray, alpha);
}
Animation::Animation(const uint8_t *data_start, int width, int height, uint32_t animation_frame_count, ImageType type)
: Image(data_start, width, height, type), current_frame_(0), animation_frame_count_(animation_frame_count) {}
int Animation::get_animation_frame_count() const { return this->animation_frame_count_; }
: Image(data_start, width, height, type),
current_frame_(0),
animation_frame_count_(animation_frame_count),
loop_start_frame_(0),
loop_end_frame_(animation_frame_count_),
loop_count_(0),
loop_current_iteration_(1) {}
void Animation::set_loop(uint32_t start_frame, uint32_t end_frame, int count) {
loop_start_frame_ = std::min(start_frame, animation_frame_count_);
loop_end_frame_ = std::min(end_frame, animation_frame_count_);
loop_count_ = count;
loop_current_iteration_ = 1;
}
uint32_t Animation::get_animation_frame_count() const { return this->animation_frame_count_; }
int Animation::get_current_frame() const { return this->current_frame_; }
void Animation::next_frame() {
this->current_frame_++;
if (loop_count_ && this->current_frame_ == loop_end_frame_ &&
(this->loop_current_iteration_ < loop_count_ || loop_count_ < 0)) {
this->current_frame_ = loop_start_frame_;
this->loop_current_iteration_++;
}
if (this->current_frame_ >= animation_frame_count_) {
this->loop_current_iteration_ = 1;
this->current_frame_ = 0;
}
}