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FormSpec: 9-slice images, animated_images, and fgimg_middle (#12453)

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* FormSpec: 9-slice images and animated_images

* Add fgimg_middle; clean up code

* Address issues, add tests

* Fix stupid error; bump formspec version

* Re-add image[] elements without a size
This commit is contained in:
Vincent Robinson 2022-07-03 05:52:26 -07:00 • committed by GitHub
parent 5a562a597c
commit f7bcf7fa46
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15 changed files with 222 additions and 204 deletions
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49
src/client/guiscalingfilter.cpp
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@ -176,52 +176,61 @@ void draw2DImageFilterScaled(video::IVideoDriver *driver, video::ITexture *txr,
}
void draw2DImage9Slice(video::IVideoDriver *driver, video::ITexture *texture,
const core::rect<s32> &rect, const core::rect<s32> &middle,
const core::rect<s32> *cliprect, const video::SColor *const colors)
const core::rect<s32> &destrect, const core::rect<s32> &srcrect,
const core::rect<s32> &middlerect, const core::rect<s32> *cliprect,
const video::SColor *const colors)
{
auto originalSize = texture->getOriginalSize();
core::vector2di lowerRightOffset = core::vector2di(originalSize.Width, originalSize.Height) - middle.LowerRightCorner;
// `-x` is interpreted as `w - x`
core::rect<s32> middle = middlerect;
if (middlerect.LowerRightCorner.X < 0)
middle.LowerRightCorner.X += srcrect.getWidth();
if (middlerect.LowerRightCorner.Y < 0)
middle.LowerRightCorner.Y += srcrect.getHeight();
core::vector2di lower_right_offset = core::vector2di(srcrect.getWidth(),
srcrect.getHeight()) - middle.LowerRightCorner;
for (int y = 0; y < 3; ++y) {
for (int x = 0; x < 3; ++x) {
core::rect<s32> src({0, 0}, originalSize);
core::rect<s32> dest = rect;
core::rect<s32> src = srcrect;
core::rect<s32> dest = destrect;
switch (x) {
case 0:
dest.LowerRightCorner.X = rect.UpperLeftCorner.X + middle.UpperLeftCorner.X;
src.LowerRightCorner.X = middle.UpperLeftCorner.X;
dest.LowerRightCorner.X = destrect.UpperLeftCorner.X + middle.UpperLeftCorner.X;
src.LowerRightCorner.X = srcrect.UpperLeftCorner.X + middle.UpperLeftCorner.X;
break;
case 1:
dest.UpperLeftCorner.X += middle.UpperLeftCorner.X;
dest.LowerRightCorner.X -= lowerRightOffset.X;
src.UpperLeftCorner.X = middle.UpperLeftCorner.X;
src.LowerRightCorner.X = middle.LowerRightCorner.X;
dest.LowerRightCorner.X -= lower_right_offset.X;
src.UpperLeftCorner.X += middle.UpperLeftCorner.X;
src.LowerRightCorner.X -= lower_right_offset.X;
break;
case 2:
dest.UpperLeftCorner.X = rect.LowerRightCorner.X - lowerRightOffset.X;
src.UpperLeftCorner.X = middle.LowerRightCorner.X;
dest.UpperLeftCorner.X = destrect.LowerRightCorner.X - lower_right_offset.X;
src.UpperLeftCorner.X = srcrect.LowerRightCorner.X - lower_right_offset.X;
break;
}
switch (y) {
case 0:
dest.LowerRightCorner.Y = rect.UpperLeftCorner.Y + middle.UpperLeftCorner.Y;
src.LowerRightCorner.Y = middle.UpperLeftCorner.Y;
dest.LowerRightCorner.Y = destrect.UpperLeftCorner.Y + middle.UpperLeftCorner.Y;
src.LowerRightCorner.Y = srcrect.UpperLeftCorner.Y + middle.UpperLeftCorner.Y;
break;
case 1:
dest.UpperLeftCorner.Y += middle.UpperLeftCorner.Y;
dest.LowerRightCorner.Y -= lowerRightOffset.Y;
src.UpperLeftCorner.Y = middle.UpperLeftCorner.Y;
src.LowerRightCorner.Y = middle.LowerRightCorner.Y;
dest.LowerRightCorner.Y -= lower_right_offset.Y;
src.UpperLeftCorner.Y += middle.UpperLeftCorner.Y;
src.LowerRightCorner.Y -= lower_right_offset.Y;
break;
case 2:
dest.UpperLeftCorner.Y = rect.LowerRightCorner.Y - lowerRightOffset.Y;
src.UpperLeftCorner.Y = middle.LowerRightCorner.Y;
dest.UpperLeftCorner.Y = destrect.LowerRightCorner.Y - lower_right_offset.Y;
src.UpperLeftCorner.Y = srcrect.LowerRightCorner.Y - lower_right_offset.Y;
break;
}