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Code Issues Activity Actions

ImageViewer: Transform the image's dimension accordingly to the metadata

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Exif metadata have two tags to store the pixel density along each axis.
If both values are different and no action is taken, the resulting image
will appear deformed. This commit scales the displayed bitmap
accordingly to these tags in order to show the image in its intended
shape. This unfortunately includes a lot of plumbing to get this
information through IPC.
This commit is contained in:
Lucas CHOLLET 2024-02-14 01:15:06 -05:00 • committed by Sam Atkins
parent 8dd887b3c8
commit 8e2102fb73
6 changed files with 27 additions and 8 deletions
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8
Userland/Applications/ImageViewer/ViewWidget.h
View file

@ -66,9 +66,9 @@ private:
class BitmapImage final : public Image {
public:
static NonnullRefPtr<BitmapImage> create(Gfx::Bitmap& bitmap) { return adopt_ref(*new BitmapImage(bitmap)); }
static NonnullRefPtr<BitmapImage> create(Gfx::Bitmap& bitmap, Gfx::FloatPoint scale) { return adopt_ref(*new BitmapImage(bitmap, scale)); }
virtual Gfx::IntSize size() const override { return m_bitmap->size(); }
virtual Gfx::IntSize size() const override { return { round(m_bitmap->size().width() * m_scale.x()), round(m_bitmap->size().height() * m_scale.y()) }; }
virtual void flip(Gfx::Orientation) override;
virtual void rotate(Gfx::RotationDirection) override;
@ -81,12 +81,14 @@ public:
}
private:
BitmapImage(Gfx::Bitmap& bitmap)
BitmapImage(Gfx::Bitmap& bitmap, Gfx::FloatPoint scale)
: m_bitmap(bitmap)
, m_scale(scale)
{
}
NonnullRefPtr<Gfx::Bitmap> m_bitmap;
Gfx::FloatPoint m_scale;
};
class ViewWidget final : public GUI::AbstractZoomPanWidget {