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Highlight points on hover in the Polygon2D editor #107890

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Merged
Repiteo merged 1 commit into from
Nov 14, 2025
+59 −7
Merged

Highlight points on hover in the Polygon2D editor #107890

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65 changes: 58 additions & 7 deletions editor/scene/2d/polygon_2d_editor_plugin.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -595,6 +595,9 @@ void Polygon2DEditor::_canvas_input(const Ref<InputEvent> &p_input) {
if (closest == -1) {
return;
}
if (closest == hovered_point) {
hovered_point = -1;
}

previous_polygon.remove_at(closest);
previous_uv.remove_at(closest);
Expand Down Expand Up @@ -786,6 +789,40 @@ void Polygon2DEditor::_canvas_input(const Ref<InputEvent> &p_input) {
Ref<InputEventMouseMotion> mm = p_input;

if (mm.is_valid()) {
// Highlight a point near the cursor.
if (is_creating) {
if (editing_points.size() > 2 && mtx.affine_inverse().xform(mm->get_position()).distance_to(node->get_polygon()[0]) < (8 / draw_zoom)) {
if (hovered_point != 0) {
hovered_point = 0;
canvas->queue_redraw();
}
} else if (hovered_point == 0) {
hovered_point = -1;
canvas->queue_redraw();
}
}
if (selected_action == ACTION_REMOVE_INTERNAL || selected_action == ACTION_EDIT_POINT || selected_action == ACTION_ADD_POLYGON) {
Vector<Vector2> points;
if (current_mode == MODE_POINTS || current_mode == MODE_POLYGONS) {
points = node->get_polygon();
} else {
points = node->get_uv();
}
int i = points.size() - 1;
for (; i >= 0; i--) {
if (mtx.affine_inverse().xform(mm->get_position()).distance_to(points[i]) < (8 / draw_zoom)) {
if (hovered_point != i) {
hovered_point = i;
canvas->queue_redraw();
}
break;
}
}
if (i == -1 && hovered_point >= 0) {
hovered_point = -1;
canvas->queue_redraw();
}
}
if (is_dragging) {
Vector2 uv_drag_to = mm->get_position();
uv_drag_to = snap_point(uv_drag_to);
Expand Down Expand Up @@ -1183,17 +1220,31 @@ void Polygon2DEditor::_canvas_draw() {
}
}

for (int i = 0; i < uvs.size(); i++) {
if (weight_r) {
if (weight_r) {
for (int i = 0; i < uvs.size(); i++) {
Vector2 draw_pos = mtx.xform(uvs[i]);
float weight = weight_r[i];
canvas->draw_rect(Rect2(draw_pos - Vector2(2, 2) * EDSCALE, Vector2(5, 5) * EDSCALE), Color(weight, weight, weight, 1.0), Math::round(EDSCALE));
} else {
if (i < uv_draw_max) {
canvas->draw_texture(handle, mtx.xform(uvs[i]) - handle->get_size() * 0.5);
}
} else {
Vector2 texture_size_half = handle->get_size() * 0.5;
Color mod(1, 1, 1);
Color hovered_mod(0.65, 0.65, 0.65);
for (int i = 0; i < uv_draw_max; i++) {
if (i == hovered_point && selected_action != ACTION_REMOVE_INTERNAL) {
canvas->draw_texture(handle, mtx.xform(uvs[i]) - texture_size_half, hovered_mod);
} else {
canvas->draw_texture(handle, mtx.xform(uvs[i]) - texture_size_half, mod);
}
}
// Internal vertices.
mod = Color(0.6, 0.8, 1);
hovered_mod = Color(0.35, 0.55, 0.75);
for (int i = uv_draw_max; i < uvs.size(); i++) {
if (i == hovered_point) {
canvas->draw_texture(handle, mtx.xform(uvs[i]) - texture_size_half, hovered_mod);
} else {
// Internal vertex
canvas->draw_texture(handle, mtx.xform(uvs[i]) - handle->get_size() * 0.5, Color(0.6, 0.8, 1));
canvas->draw_texture(handle, mtx.xform(uvs[i]) - texture_size_half, mod);
}
}
}
Expand Down
1 change: 1 addition & 0 deletions editor/scene/2d/polygon_2d_editor_plugin.h
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Original file line number Diff line number Diff line change
Expand Up @@ -135,6 +135,7 @@ class Polygon2DEditor : public AbstractPolygon2DEditor {
int point_drag_index = -1;
bool is_dragging = false;
bool is_creating = false;
int hovered_point = -1;
Vector<int> polygon_create;
Action current_action = ACTION_CREATE;
Vector2 drag_from;
Expand Down