mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 18:57:45 +00:00
PixelPaint: Limit editing tools to selection
This effectively creates a double-buffer for tools to use when modifying the layer's bitmap (content or mask). Once the changes have been made the tool reports to the layer that it has made changes along with a Rect of the changed region. The layer will then merge the changes from the scratch image to the real bitmap. This merge is done as follows: If a given pixel is inside the selected region, the pixel from the scratch bitmap is copied to the real bitmap. If the pixel is not inside the selected region, the pixel from the real bitmap is copied to the scratch bitmap. As an optimization, when there is no selection active, the new method for getting the scratch bitmap will return the real bitmap and no merging will need to take place.
This commit is contained in:
parent
7c33f8f7df
commit
0d7d759095
8 changed files with 51 additions and 14 deletions
|
@ -87,10 +87,11 @@ void RectangleTool::on_mouseup(Layer* layer, MouseEvent& event)
|
|||
return;
|
||||
|
||||
if (event.layer_event().button() == m_drawing_button) {
|
||||
GUI::Painter painter(layer->currently_edited_bitmap());
|
||||
GUI::Painter painter(layer->get_scratch_edited_bitmap());
|
||||
draw_using(painter, m_rectangle_start_position, m_rectangle_end_position, m_thickness, m_corner_radius);
|
||||
m_drawing_button = GUI::MouseButton::None;
|
||||
layer->did_modify_bitmap();
|
||||
auto modified_rect = Gfx::IntRect::from_two_points(m_rectangle_start_position, m_rectangle_end_position).inflated(m_thickness * 2, m_thickness * 2);
|
||||
layer->did_modify_bitmap(modified_rect);
|
||||
m_editor->update();
|
||||
m_editor->did_complete_action(tool_name());
|
||||
}
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue