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a6a142f9c8
There was an image like this:
```slint
height: 40px
Image {
width: parent.width;
height: self.source.height * 1px;
source: @image-url("....");
}
```
The `y` propery ended inlined like so:
`(40 - the_image.source.get().size().height)/float(2)`
but since height was `unsigned` the C++ rules means that the operation
happens as unsigned and we have an overflow. and `y` turned out to be
very big instead of slightly negative (for image whose height was larger
than 40)
67 lines
2 KiB
Text
67 lines
2 KiB
Text
// Copyright © SixtyFPS GmbH <info@slint.dev>
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// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-2.0 OR LicenseRef-Slint-Software-3.0
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//include_path: ../../../demos/printerdemo/ui/images/
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TestCase := Rectangle {
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img := Image {
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source: @image-url("cat.jpg");
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}
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img2 := Image {
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source: @image-url("cat.jpg");
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source-clip-x: 20;
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}
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img3 := Image {
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source: @image-url("image.slint");
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}
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out property <image> with-border: @image-url("dog.jpg", nine-slice(12 13 14 15));
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property <length> img_width: img.width;
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property <length> img_height: img.height;
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in-out property <float> test_no_overflow: (21 - img.source.width) / 2; // (21 - 320)/2 = -149.5
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property <bool> test: img2.source-clip-height * 1px == img2.height && img2.source-clip-width * 1px == img2.width &&
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img2.width/1px == img2.source.width - 20 && img3.source.width == 0 && img3.source.height == 0 && test_no_overflow == -149.5;
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}
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/*
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```cpp
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auto handle = TestCase::create();
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const TestCase &instance = *handle;
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assert_eq(instance.get_img_width(), 320.);
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assert_eq(instance.get_img_height(), 480.);
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assert(instance.get_test());
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auto img_search = slint::testing::ElementHandle::find_by_element_id(handle, "TestCase::img");
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assert_eq(img_search.size(), 1);
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auto img = img_search[0];
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assert(*img.accessible_role() == slint::testing::AccessibleRole::Image);
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```
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```rust
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use i_slint_backend_testing::AccessibleRole;
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let instance = TestCase::new().unwrap();
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assert_eq!(instance.get_img_width(), 320.);
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assert_eq!(instance.get_img_height(), 480.);
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assert!(instance.get_test());
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let mut img_search = slint_testing::ElementHandle::find_by_element_id(&instance, "TestCase::img");
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let img = img_search.next().unwrap();
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assert_eq!(img.accessible_role(), Some(AccessibleRole::Image));
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```
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```js
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var instance = new slint.TestCase();
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assert.equal(instance.img_width, 320);
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assert.equal(instance.img_height, 480);
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assert(instance.test);
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```
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*/
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