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PixelPaint+LibGfx: Allow resizing images and layers

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This PR adds resize ability to PixelPaint as per issue 11862.
The previous behaviour was to always rescale the canvas when
resizing an image. This adds a checkbox to toggle between
rescaling, and resizing which blits the existing canvas to
the top left of the new, resized canvas.

As part of this, a new ScalingMode is added to
LibGfx - None.
This commit is contained in:
jack gleeson 2022-10-10 12:54:06 -07:00 • committed by Sam Atkins
parent d6334dcab1
commit 4bf587811f
6 changed files with 35 additions and 3 deletions
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6
Userland/Applications/PixelPaint/ResizeImageDialog.cpp
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@ -70,10 +70,12 @@ ResizeImageDialog::ResizeImageDialog(Gfx::IntSize const& suggested_size, GUI::Wi
auto nearest_neighbor_radio = main_widget.find_descendant_of_type_named<GUI::RadioButton>("nearest_neighbor_radio");
auto smooth_pixels_radio = main_widget.find_descendant_of_type_named<GUI::RadioButton>("smooth_pixels_radio");
auto bilinear_radio = main_widget.find_descendant_of_type_named<GUI::RadioButton>("bilinear_radio");
auto resize_canvas_radio = main_widget.find_descendant_of_type_named<GUI::RadioButton>("resize_canvas");
VERIFY(nearest_neighbor_radio);
VERIFY(smooth_pixels_radio);
VERIFY(bilinear_radio);
VERIFY(resize_canvas_radio);
m_scaling_mode = Gfx::Painter::ScalingMode::NearestNeighbor;
if (bilinear_radio->is_checked()) {
@ -92,6 +94,10 @@ ResizeImageDialog::ResizeImageDialog(Gfx::IntSize const& suggested_size, GUI::Wi
if (is_checked)
m_scaling_mode = Gfx::Painter::ScalingMode::BilinearBlend;
};
resize_canvas_radio->on_checked = [this](bool is_checked) {
if (is_checked)
m_scaling_mode = Gfx::Painter::ScalingMode::None;
};
auto ok_button = main_widget.find_descendant_of_type_named<GUI::Button>("ok_button");
auto cancel_button = main_widget.find_descendant_of_type_named<GUI::Button>("cancel_button");