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PixelPaint: Add Fit Image To View action

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This is a feature I missed from Photoshop: it sets the scale and
position so that the image fits (it's longest dimension) into
the editor view. There's a 5% border left around the image to
provide context. This is just arbitrary seemed like the right
amount after some trial and error.
This commit is contained in:
Mustafa Quraish 2021-09-07 14:14:18 -04:00 committed by Andreas Kling
parent 111ef19114
commit d9832f8d0b
3 changed files with 18 additions and 0 deletions
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12
Userland/Applications/PixelPaint/ImageEditor.cpp
View file

@ -425,6 +425,18 @@ void ImageEditor::scale_by(float scale_delta)
}
}
void ImageEditor::fit_image_to_view()
{
const float border_ratio = 0.95f;
auto image_size = image().size();
auto height_ratio = rect().height() / (float)image_size.height();
auto width_ratio = rect().width() / (float)image_size.width();
m_scale = border_ratio * min(height_ratio, width_ratio);
m_pan_origin = Gfx::FloatPoint(0, 0);
relayout();
}
void ImageEditor::reset_scale_and_position()
{
if (m_scale != 1.0f)

1
Userland/Applications/PixelPaint/ImageEditor.h
View file

@ -52,6 +52,7 @@ public:
float scale() const { return m_scale; }
void scale_centered_on_position(Gfx::IntPoint const&, float);
void fit_image_to_view();
void reset_scale_and_position();
void scale_by(float);

5
Userland/Applications/PixelPaint/MainWidget.cpp
View file

@ -342,6 +342,11 @@ void MainWidget::initialize_menubar(GUI::Window& window)
view_menu.add_action(*m_zoom_in_action);
view_menu.add_action(*m_zoom_out_action);
view_menu.add_action(*m_reset_zoom_action);
view_menu.add_action(GUI::Action::create(
"&Fit Image To View", [&](auto&) {
if (auto* editor = current_image_editor())
editor->fit_image_to_view();
}));
view_menu.add_separator();
view_menu.add_action(*m_add_guide_action);
view_menu.add_action(*m_show_guides_action);