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FIX: autofit when adjusting graph not shooting into outer space (LOL)

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boreddevnl 2026-04-02 15:58:56 +02:00
parent 0ddb1e7610
commit 823e9c0ce7
1 changed files with 12 additions and 22 deletions
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34
src/userland/gui/grapher.c
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@ -627,10 +627,8 @@ static void autofit_2d_view(void) {
if (y_min_data * y_max_data <= 0 || my_fabs(y_min_data) < (y_max_data - y_min_data) * 0.5) {
double max_abs = my_fabs(y_min_data);
if (my_fabs(y_max_data) > max_abs) max_abs = my_fabs(y_max_data);
double pad = max_abs * 0.15;
if (pad < 0.5) pad = 0.5;
view_y_min = -(max_abs + pad);
view_y_max = (max_abs + pad);
} else {
@ -640,29 +638,21 @@ static void autofit_2d_view(void) {
view_y_max = y_max_data + pad;
}
double cx = (view_x_min + view_x_max) / 2.0;
double cy = (view_y_min + view_y_max) / 2.0;
double x_range = view_x_max - view_x_min;
double y_range = view_y_max - view_y_min;
double target_y_range = x_range * (double)graph_h / (double)graph_w;
double current_y_range = view_y_max - view_y_min;
if (x_range * graph_h < y_range * graph_w) {
double target_x_range = y_range * (double)graph_w / (double)graph_h;
if (my_fabs(cx) < x_range * 0.1) {
view_x_min = -target_x_range / 2.0;
view_x_max = target_x_range / 2.0;
} else {
view_x_min = cx - target_x_range / 2.0;
view_x_max = cx + target_x_range / 2.0;
}
if (current_y_range < target_y_range) {
double cy = (view_y_min + view_y_max) / 2.0;
if (my_fabs(cy) < current_y_range * 0.1) cy = 0;
view_y_min = cy - target_y_range / 2.0;
view_y_max = cy + target_y_range / 2.0;
} else {
double target_y_range = x_range * (double)graph_h / (double)graph_w;
if (my_fabs(cy) < y_range * 0.1) {
view_y_min = -target_y_range / 2.0;
view_y_max = target_y_range / 2.0;
} else {
view_y_min = cy - target_y_range / 2.0;
view_y_max = cy + target_y_range / 2.0;
}
double target_x_range = current_y_range * (double)graph_w / (double)graph_h;
double cx = (view_x_min + view_x_max) / 2.0;
if (my_fabs(cx) < x_range * 0.1) cx = 0;
view_x_min = cx - target_x_range / 2.0;
view_x_max = cx + target_x_range / 2.0;
}
} else {
apply_aspect_ratio();