diff options
| author | Gilles Roudiere <gilles.roudiere@gmail.com> | 2017-08-02 19:24:05 +0200 |
|---|---|---|
| committer | Gilles Roudiere <gilles.roudiere@gmail.com> | 2017-08-13 21:20:13 +0200 |
| commit | f5ff7e9fa039e54de2e48bfb46239bbda497287a (patch) | |
| tree | ff7094e5f5c7eb45da876242ad58ab4076e083f7 /editor | |
| parent | b73613e1eb66bf1807a4e106c87ebfaf6914813f (diff) | |
Make anchors snap to each other
Diffstat (limited to 'editor')
| -rw-r--r-- | editor/plugins/canvas_item_editor_plugin.cpp | 55 | ||||
| -rw-r--r-- | editor/plugins/canvas_item_editor_plugin.h | 2 |
2 files changed, 31 insertions, 26 deletions
diff --git a/editor/plugins/canvas_item_editor_plugin.cpp b/editor/plugins/canvas_item_editor_plugin.cpp index 3531498289..fc3cee033f 100644 --- a/editor/plugins/canvas_item_editor_plugin.cpp +++ b/editor/plugins/canvas_item_editor_plugin.cpp @@ -775,25 +775,30 @@ CanvasItemEditor::DragType CanvasItemEditor::_get_resize_handle_drag_type(const return DRAG_NONE; } -float CanvasItemEditor::_anchor_snap(const float anchor, bool *snapped) { - float result = anchor; - if (snapped) - *snapped = false; +float CanvasItemEditor::_anchor_snap(float p_anchor, bool *p_snapped, float p_opposite_anchor) { + bool snapped = false; + float dist, dist_min = 0.0; float radius = 0.05 / zoom; - if (fabs(result - ANCHOR_BEGIN) < radius) { - result = ANCHOR_BEGIN; - if (snapped) - *snapped = true; - } else if (fabs(result - ANCHOR_CENTER) < radius) { - result = ANCHOR_CENTER; - if (snapped) - *snapped = true; - } else if (fabs(result - ANCHOR_END) < radius) { - result = ANCHOR_END; - if (snapped) - *snapped = true; + float basic_anchors[3] = { ANCHOR_BEGIN, ANCHOR_CENTER, ANCHOR_END }; + for (int i = 0; i < 3; i++) { + if ((dist = fabs(p_anchor - basic_anchors[i])) < radius) { + if (!snapped || dist <= dist_min) { + p_anchor = basic_anchors[i]; + dist_min = dist; + snapped = true; + } + } + } + if (p_opposite_anchor >= 0 && (dist = fabs(p_anchor - p_opposite_anchor)) < radius) { + if (!snapped || dist <= dist_min) { + p_anchor = p_opposite_anchor; + dist_min = dist; + snapped = true; + } } - return result; + if (p_snapped) + *p_snapped = snapped; + return p_anchor; } Vector2 CanvasItemEditor::_anchor_to_position(Control *p_control, Vector2 anchor) { @@ -1590,23 +1595,23 @@ void CanvasItemEditor::_viewport_gui_input(const Ref<InputEvent> &p_event) { switch (drag) { case DRAG_ANCHOR_TOP_LEFT: - control->set_anchor(MARGIN_LEFT, _anchor_snap(anchor.x)); - control->set_anchor(MARGIN_TOP, _anchor_snap(anchor.y)); + control->set_anchor(MARGIN_LEFT, _anchor_snap(anchor.x, NULL, control->get_anchor(MARGIN_RIGHT))); + control->set_anchor(MARGIN_TOP, _anchor_snap(anchor.y, NULL, control->get_anchor(MARGIN_BOTTOM))); continue; break; case DRAG_ANCHOR_TOP_RIGHT: - control->set_anchor(MARGIN_RIGHT, _anchor_snap(anchor.x)); - control->set_anchor(MARGIN_TOP, _anchor_snap(anchor.y)); + control->set_anchor(MARGIN_RIGHT, _anchor_snap(anchor.x, NULL, control->get_anchor(MARGIN_LEFT))); + control->set_anchor(MARGIN_TOP, _anchor_snap(anchor.y, NULL, control->get_anchor(MARGIN_BOTTOM))); continue; break; case DRAG_ANCHOR_BOTTOM_RIGHT: - control->set_anchor(MARGIN_RIGHT, _anchor_snap(anchor.x)); - control->set_anchor(MARGIN_BOTTOM, _anchor_snap(anchor.y)); + control->set_anchor(MARGIN_RIGHT, _anchor_snap(anchor.x, NULL, control->get_anchor(MARGIN_LEFT))); + control->set_anchor(MARGIN_BOTTOM, _anchor_snap(anchor.y, NULL, control->get_anchor(MARGIN_TOP))); continue; break; case DRAG_ANCHOR_BOTTOM_LEFT: - control->set_anchor(MARGIN_LEFT, _anchor_snap(anchor.x)); - control->set_anchor(MARGIN_BOTTOM, _anchor_snap(anchor.y)); + control->set_anchor(MARGIN_LEFT, _anchor_snap(anchor.x, NULL, control->get_anchor(MARGIN_RIGHT))); + control->set_anchor(MARGIN_BOTTOM, _anchor_snap(anchor.y, NULL, control->get_anchor(MARGIN_TOP))); continue; break; } diff --git a/editor/plugins/canvas_item_editor_plugin.h b/editor/plugins/canvas_item_editor_plugin.h index 009329c271..c6b4289967 100644 --- a/editor/plugins/canvas_item_editor_plugin.h +++ b/editor/plugins/canvas_item_editor_plugin.h @@ -334,7 +334,7 @@ class CanvasItemEditor : public VBoxContainer { void _prepare_drag(const Point2 &p_click_pos); DragType _get_anchor_handle_drag_type(const Point2 &p_click, Vector2 &r_point); - float _anchor_snap(const float anchor, bool *snapped = NULL); + float _anchor_snap(float anchor, bool *snapped = NULL, float p_opposite_anchor = -1); Vector2 _anchor_to_position(Control *p_control, Vector2 anchor); Vector2 _position_to_anchor(Control *p_control, Vector2 position); |