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Code Issues Releases Wiki Activity

Add line_at_angle method to Display component (#6381)

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This commit is contained in:
Daniel Eisterhold
2024-03-17 18:51:46 -05:00
committed by GitHub
parent 72c6563a3b
commit 8fd10d6859
3 changed files with 57 additions and 0 deletions
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15
esphome/components/display/display.cpp
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@@ -36,6 +36,21 @@ void HOT Display::line(int x1, int y1, int x2, int y2, Color color) {
}
}
void Display::line_at_angle(int x, int y, int angle, int length, Color color) {
this->line_at_angle(x, y, angle, 0, length, color);
}
void Display::line_at_angle(int x, int y, int angle, int start_radius, int stop_radius, Color color) {
// Calculate start and end points
int x1 = (start_radius * cos(angle * M_PI / 180)) + x;
int y1 = (start_radius * sin(angle * M_PI / 180)) + y;
int x2 = (stop_radius * cos(angle * M_PI / 180)) + x;
int y2 = (stop_radius * sin(angle * M_PI / 180)) + y;
// Draw line
this->line(x1, y1, x2, y2, color);
}
void Display::draw_pixels_at(int x_start, int y_start, int w, int h, const uint8_t *ptr, ColorOrder order,
ColorBitness bitness, bool big_endian, int x_offset, int y_offset, int x_pad) {
size_t line_stride = x_offset + w + x_pad; // length of each source line in pixels

7
esphome/components/display/display.h
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@@ -258,6 +258,13 @@ class Display : public PollingComponent {
/// Draw a straight line from the point [x1,y1] to [x2,y2] with the given color.
void line(int x1, int y1, int x2, int y2, Color color = COLOR_ON);
/// Draw a straight line at the given angle based on the origin [x, y] for a specified length with the given color.
void line_at_angle(int x, int y, int angle, int length, Color color = COLOR_ON);
/// Draw a straight line at the given angle based on the origin [x, y] from a specified start and stop radius with the
/// given color.
void line_at_angle(int x, int y, int angle, int start_radius, int stop_radius, Color color = COLOR_ON);
/// Draw a horizontal line from the point [x,y] to [x+width,y] with the given color.
void horizontal_line(int x, int y, int width, Color color = COLOR_ON);