slint/api/sixtyfps-cpp/include/sixtyfps_image.h
Simon Hausmann f31f4201c6 Improve sixtyfps::Image::size() API for consistency
Make size() return an unsigned integer size type instead of floats.

cc #431
2022-01-27 22:15:29 +01:00

75 lines
2.1 KiB
C++

// Copyright © SixtyFPS GmbH <info@sixtyfps.io>
// SPDX-License-Identifier: (GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
#pragma once
#include <string_view>
#include "sixtyfps_image_internal.h"
#include "sixtyfps_string.h"
#include "sixtyfps_sharedvector.h"
namespace sixtyfps {
#if !defined(DOXYGEN)
using cbindgen_private::types::IntSize;
#else
/// The Size structure is used to represent a two-dimensional size
/// with width and height.
struct IntSize
{
/// The width of the size
uint32_t width;
/// The height of the size
uint32_t height;
};
#endif
/// An image type that can be displayed by the Image element
struct Image
{
public:
Image() : data(Data::None()) { }
/// Load an image from an image file
static Image load_from_path(const SharedString &file_path)
{
Image img;
img.data = Data::AbsoluteFilePath(file_path);
return img;
}
/*
static Image load_from_argb(int width, int height, const SharedVector<uint32_t> &data) {
Image img;
img.data = Data::EmbeddedRgbaImage(width, height, data);
return img;
}
*/
/// Returns the size of the Image in pixels.
IntSize size() const { return cbindgen_private::types::sixtyfps_image_size(&data); }
/// Returns the path of the image on disk, if it was constructed via Image::load_from_path().
std::optional<sixtyfps::SharedString> path() const
{
if (auto *str = cbindgen_private::types::sixtyfps_image_path(&data)) {
return *str;
} else {
return {};
}
}
/// Returns true if \a a refers to the same image as \a b; false otherwise.
friend bool operator==(const Image &a, const Image &b) { return a.data == b.data; }
/// Returns false if \a a refers to the same image as \a b; true otherwise.
friend bool operator!=(const Image &a, const Image &b) { return a.data != b.data; }
/// \private
explicit Image(cbindgen_private::types::Image inner) : data(inner) { }
private:
using Tag = cbindgen_private::types::ImageInner::Tag;
using Data = cbindgen_private::types::Image;
Data data;
};
}