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#include<math.h>
#include"seeed_graphics_base.h"
std::vector<color_t> classic_colors {
yellow,
red,
green,
black,
blue,
darkcyan,
magenta,
};
constexpr double pi = 3.14159265358979323846;
extern TFT_eSprite spr;
namespace detail {
void draw(void * poly, bool gen){
detail::poly<polygen> & p = *(detail::poly<polygen> *)poly;
auto default_color = black;
auto default_thickness = pan_thickness;
auto & value = p.value();
auto & color = p.color();
auto & thickness = p.thickness();
if (value.size() <= 1) {
return;
}
for (size_t i = 1; i < value.size() + gen; i++){
auto ai = (i - 1) % value.size();
auto bi = (i) % value.size();
auto a = value[ai];
auto b = value[bi];
if (i - 1 < color.size()){
default_color = color[i - 1];
}
if (i - 1 < thickness.size()){
default_thickness = thickness[i - 1];
}
line(a, b)
.color(default_color)
.thickness(default_thickness)
.draw();
}
}
}
void dot::draw() {
spr.drawPixel(_x, _y, _color);
}
void line::draw() {
spr.drawLine(_x0, _y0, _x1, _y1, _color);
}
void dash_line::draw() {
point origin(_x, _y);
point solid_offset;
point empty_offset;
point end;
if (_orientation == horizon) {
solid_offset = point(_solid, 0);
empty_offset = point(_empty, 0);
end = origin(_length - 1, 0);
}
else {
solid_offset = point(0, _solid);
empty_offset = point(0, _empty);
end = origin(0, _length - 1);
}
for (bool loop = true; loop;) {
auto next = origin(solid_offset);
if (next.x > end.x) {
next.x = end.x;
loop = false;
}
if (next.y > end.y) {
next.y = end.y;
loop = false;
}
line(origin, next)
.color(_color)
.thickness(_thickness)
.draw();
origin = next(empty_offset);
}
}
void rectangle::draw() {
auto origin = adjust(_width, _height);
auto left_top = origin;
auto left_bottom = origin(0, -(pos_t)_height + 1);
auto right_top = left_top(_width - 1, 0);
auto right_bottom = left_bottom(_width - 1, 0);
spr.drawRect(left_top.x, left_top.y, _width, _height, _color);
if (_fill != transparent) {
spr.fillRect(left_top.x + 1, left_top.y + 1, _width - 2, _height - 2, _fill);
}
}
void ellipse::draw() {
auto p = adjust(_width, _height);
if (_fill != transparent) {
spr.fillEllipse(_x, _y, _width / 2, _height / 2, _fill);
}
spr.drawEllipse(_x, _y, _width / 2, _height / 2, _color);
}
text & text::font(font_t value){
_font = value;
spr.setTextFont(uint8_t(value));
return this[0];
}
text & text::thickness(pix_t value){
_thickness = value;
spr.setTextSize(uint8_t(value));
return this[0];
}
text & text::font_height(pix_t * value) {
font(font());
thickness(thickness());
value[0] = spr.fontHeight();
return this[0];
}
text & text::content_width(pix_t * value) {
font(font());
thickness(thickness());
value[0] = spr.textWidth(_value);
return this[0];
}
void text::draw(){
pix_t height = font_height();
pix_t width = content_width();
point p = adjust(width, height);
if (_align == center){
p.x += (_width - width) / 2;
}
else if (_align == right){
p.x += _width - width;
}
if (_valign == vcenter){
p.y += (_height - height) / 2;
}
else if (_valign == bottom){
p.y += _height - height;
}
spr.setTextColor(_color);
spr.drawString(_value, p.x, p.y);
}
void polyline::draw() {
detail::draw(this, false);
}
void polygen::draw() {
detail::draw(this, true);
}
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