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PaintBrush: Make the line, rectangle and ellipsis preview work again

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You can now see what you're drawing before committing to it. This works
by passing the second_paint_event from the ImageEditor to the tool.
We also pass the active layer which makes it easier for the tool to
keep his logic in layer-relative coordinates even while drawing preview
states directly into the ImageEditor backing bitmap.
This commit is contained in:
Andreas Kling 2020-05-13 13:41:12 +02:00
parent 8318842c7e
commit 96d03546ef
9 changed files with 20 additions and 17 deletions
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6
Applications/PaintBrush/ImageEditor.cpp
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@ -62,6 +62,12 @@ void ImageEditor::paint_event(GUI::PaintEvent& event)
}
}
void ImageEditor::second_paint_event(GUI::PaintEvent& event)
{
if (m_active_tool && m_active_layer)
m_active_tool->on_second_paint(*m_active_layer, event);
}
static GUI::MouseEvent event_adjusted_for_layer(const GUI::MouseEvent& original_event, const Layer& layer)
{
auto position_in_active_layer_coordinates = original_event.position().translated(-layer.location());