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FEAT: libwidget.c

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boreddevnl
2026-03-22 22:07:30 +01:00
parent 4e8ea5acd2
commit 63749b8734
12 changed files with 1318 additions and 909 deletions
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65
src/wm/graphics.c
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@@ -287,28 +287,39 @@ static int isqrt(int n) {
void draw_rounded_rect(int x, int y, int w, int h, int radius, uint32_t color) {
if (radius > w / 2) radius = w / 2;
if (radius > h / 2) radius = h / 2;
if (radius < 1) radius = 1;
if (radius < 1) {
// Draw a simple rect outline if no radius
draw_rect(x, y, w, 1, color);
draw_rect(x, y + h - 1, w, 1, color);
draw_rect(x, y + 1, 1, h - 2, color);
draw_rect(x + w - 1, y + 1, 1, h - 2, color);
return;
}
// Draw top and bottom edges
// Draw top and bottom straight edges
draw_rect(x + radius, y, w - 2*radius, 1, color);
draw_rect(x + radius, y + h - 1, w - 2*radius, 1, color);
// Draw left and right edges
// Draw left and right straight edges
draw_rect(x, y + radius, 1, h - 2*radius, color);
draw_rect(x + w - 1, y + radius, 1, h - 2*radius, color);
// Draw corner circles using integer approximation
for (int i = 0; i < radius; i++) {
int j = isqrt(radius*radius - i*i);
// Draw four corner arcs
for (int dy = 0; dy < radius; dy++) {
int y_dist = radius - 1 - dy;
int dx = isqrt(radius*radius - y_dist*y_dist);
int next_dx = (dy < radius - 1) ? isqrt(radius*radius - (y_dist - 1)*(y_dist - 1)) : radius;
// Top-left corner
put_pixel(x + radius - i - 1, y + radius - j, color);
// Top-right corner
put_pixel(x + w - radius + i, y + radius - j, color);
// Bottom-left corner
put_pixel(x + radius - i - 1, y + h - radius + j - 1, color);
// Bottom-right corner
put_pixel(x + w - radius + i, y + h - radius + j - 1, color);
for (int i = dx; i < next_dx && i <= radius; i++) {
// Top-left
put_pixel(x + radius - 1 - i, y + dy, color);
// Top-right
put_pixel(x + w - radius + i, y + dy, color);
// Bottom-left
put_pixel(x + radius - 1 - i, y + h - 1 - dy, color);
// Bottom-right
put_pixel(x + w - radius + i, y + h - 1 - dy, color);
}
}
}
@@ -316,25 +327,21 @@ void draw_rounded_rect(int x, int y, int w, int h, int radius, uint32_t color) {
void draw_rounded_rect_filled(int x, int y, int w, int h, int radius, uint32_t color) {
if (radius > w / 2) radius = w / 2;
if (radius > h / 2) radius = h / 2;
if (radius < 1) radius = 1;
if (radius < 1) {
draw_rect(x, y, w, h, color);
return;
}
// Draw main rectangle body (center part without corners)
draw_rect(x + radius, y, w - 2*radius, h, color);
draw_rect(x, y + radius, radius, h - 2*radius, color);
draw_rect(x + w - radius, y + radius, radius, h - 2*radius, color);
// Draw main rectangle body
draw_rect(x, y + radius, w, h - 2*radius, color);
// Draw rounded top and bottom caps
for (int dy = 0; dy < radius; dy++) {
int dx_top = isqrt(radius*radius - (radius - dy) * (radius - dy));
int y_dist = radius - 1 - dy;
int dx = isqrt(radius*radius - y_dist*y_dist);
int dx_bottom = isqrt(radius*radius - dy*dy);
draw_rect(x + radius - dx_top, y + dy, dx_top, 1, color);
draw_rect(x + w - radius, y + dy, dx_top, 1, color);
draw_rect(x + radius - dx_bottom, y + h - radius + dy, dx_bottom, 1, color);
draw_rect(x + w - radius, y + h - radius + dy, dx_bottom, 1, color);
draw_rect(x + radius - dx, y + dy, w - 2*radius + 2*dx, 1, color);
draw_rect(x + radius - dx, y + h - 1 - dy, w - 2*radius + 2*dx, 1, color);
}
}