added bucket options tool

src/canvas_modes.cpp

@@ -1577,7 +1577,7 @@ void CanvasModeFloodFill::on_MouseEvent(MouseEvent* me, glm::vec2& loc)
             std::map<int, std::unique_ptr<bool[]>> plane_mask;
             std::unique_ptr<glm::vec4> color;
             Canvas::I->flood_fill(Canvas::I->m_current_layer_idx, plane, { (glm::ivec2)pos },
-                plane_mask, 200, Canvas::I->m_current_brush->m_tip_color, color);
+                plane_mask, m_tool->get_threshold(), Canvas::I->m_current_brush->m_tip_color, color);
         }
         break;
     default:
@@ -1607,3 +1607,15 @@ void CanvasModeFloodFill::on_Draw(const glm::mat4& ortho, const glm::mat4& proj,
         t.unbind();
     }
 }
+
+void CanvasModeFloodFill::enter(kCanvasMode prev)
+{
+    auto tools = App::I.layout[App::I.main_id]->find("tools-container");
+    m_tool = tools->add_child<NodeToolBucket>();
+}
+
+void CanvasModeFloodFill::leave(kCanvasMode next)
+{
+    m_tool->destroy();
+    m_tool = nullptr;
+}