PixelPaint: Tighten update rects for Tools

This tightens the update rects for EraseTool, BrushTool And the marching
ants update in Selection. Inflate Selection update rect by 10x10 to
avoid misalignment when zoomed out.

3 files changed, 4 insertions, 4 deletions

diff --git a/Userland/Applications/PixelPaint/BrushTool.cpp b/Userland/Applications/PixelPaint/BrushTool.cpp
index dad399c880..ca1d754988 100644
--- a/Userland/Applications/PixelPaint/BrushTool.cpp
+++ b/Userland/Applications/PixelPaint/BrushTool.cpp
@@ -35,7 +35,7 @@ void BrushTool::on_mousedown(Layer& layer, GUI::MouseEvent& event, GUI::MouseEve
     for (int i = 0; i < first_draw_opacity; ++i)
         draw_point(layer.bitmap(), m_editor->color_for(event), event.position());
 
-    layer.did_modify_bitmap();
+    layer.did_modify_bitmap(Gfx::IntRect::centered_on(event.position(), Gfx::IntSize { m_size * 2, m_size * 2 }));
     m_last_position = event.position();
 }
 
diff --git a/Userland/Applications/PixelPaint/EraseTool.cpp b/Userland/Applications/PixelPaint/EraseTool.cpp
index 90a6292d4b..715db37ff7 100644
--- a/Userland/Applications/PixelPaint/EraseTool.cpp
+++ b/Userland/Applications/PixelPaint/EraseTool.cpp
@@ -42,7 +42,7 @@ void EraseTool::on_mousedown(Layer& layer, GUI::MouseEvent& event, GUI::MouseEve
     Gfx::IntRect r = build_rect(event.position(), layer.rect());
     GUI::Painter painter(layer.bitmap());
     painter.clear_rect(r, get_color());
-    layer.did_modify_bitmap();
+    layer.did_modify_bitmap(r.inflated(2, 2));
 }
 
 void EraseTool::on_mousemove(Layer& layer, GUI::MouseEvent& event, GUI::MouseEvent&)
@@ -51,7 +51,7 @@ void EraseTool::on_mousemove(Layer& layer, GUI::MouseEvent& event, GUI::MouseEve
         Gfx::IntRect r = build_rect(event.position(), layer.rect());
         GUI::Painter painter(layer.bitmap());
         painter.clear_rect(r, get_color());
-        layer.did_modify_bitmap();
+        layer.did_modify_bitmap(r.inflated(2, 2));
     }
 }
 
diff --git a/Userland/Applications/PixelPaint/Selection.cpp b/Userland/Applications/PixelPaint/Selection.cpp
index dc1e9e0838..7d591c6a84 100644
--- a/Userland/Applications/PixelPaint/Selection.cpp
+++ b/Userland/Applications/PixelPaint/Selection.cpp
@@ -24,7 +24,7 @@ Selection::Selection(ImageEditor& editor)
         ++m_marching_ants_offset;
         m_marching_ants_offset %= (marching_ant_length * 2);
         if (!is_empty() || m_in_interactive_selection)
-            m_editor.update();
+            m_editor.update(m_editor.image_rect_to_editor_rect(bounding_rect().inflated(10, 10)).to_type<int>());
     });
     m_marching_ants_timer->start();
 }