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PixelPaint: Make Layer passed to tools a pointer

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Some tools (e.g. ZoomTool) doesn't need layer to work. This commit
makes mouse events fire even if there is no layer. This fixes
a bug that ZoomTool didn't work when there is no layers.
This commit is contained in:
Maciej Zygmanowski 2021-08-25 10:07:24 +02:00 • committed by Andreas Kling
parent 0224dc2882
commit 3ad9df1522
28 changed files with 202 additions and 136 deletions
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27
Userland/Applications/PixelPaint/EraseTool.cpp
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@ -35,30 +35,39 @@ Gfx::IntRect EraseTool::build_rect(Gfx::IntPoint const& pos, Gfx::IntRect const&
return Gfx::IntRect(ex - eraser_radius, ey - eraser_radius, eraser_size, eraser_size).intersected(widget_rect);
}
void EraseTool::on_mousedown(Layer& layer, MouseEvent& event)
void EraseTool::on_mousedown(Layer* layer, MouseEvent& event)
{
if (!layer)
return;
auto& layer_event = event.layer_event();
if (layer_event.button() != GUI::MouseButton::Left && layer_event.button() != GUI::MouseButton::Right)
return;
Gfx::IntRect r = build_rect(layer_event.position(), layer.rect());
GUI::Painter painter(layer.bitmap());
Gfx::IntRect r = build_rect(layer_event.position(), layer->rect());
GUI::Painter painter(layer->bitmap());
painter.clear_rect(r, get_color());
layer.did_modify_bitmap(r.inflated(2, 2));
layer->did_modify_bitmap(r.inflated(2, 2));
}
void EraseTool::on_mousemove(Layer& layer, MouseEvent& event)
void EraseTool::on_mousemove(Layer* layer, MouseEvent& event)
{
if (!layer)
return;
auto& layer_event = event.layer_event();
if (layer_event.buttons() & GUI::MouseButton::Left || layer_event.buttons() & GUI::MouseButton::Right) {
Gfx::IntRect r = build_rect(layer_event.position(), layer.rect());
GUI::Painter painter(layer.bitmap());
Gfx::IntRect r = build_rect(layer_event.position(), layer->rect());
GUI::Painter painter(layer->bitmap());
painter.clear_rect(r, get_color());
layer.did_modify_bitmap(r.inflated(2, 2));
layer->did_modify_bitmap(r.inflated(2, 2));
}
}
void EraseTool::on_mouseup(Layer&, MouseEvent& event)
void EraseTool::on_mouseup(Layer* layer, MouseEvent& event)
{
if (!layer)
return;
auto& layer_event = event.layer_event();
if (layer_event.button() != GUI::MouseButton::Left && layer_event.button() != GUI::MouseButton::Right)
return;