image.c File Reference

#include "image.h"
#include <cairo.h>
#include <libbase/libbase.h>
#include <stdbool.h>
#include <stdlib.h>
#include "buffer.h"
#include "gfxbuf.h"

Include dependency graph for image.c:

Classes
struct	_wlmtk_image_t

Functions
struct wlr_buffer *	_wlmtk_image_create_wlr_buffer_from_image (const char *path_ptr, int width, int height)
static void	_wlmtk_image_element_destroy (wlmtk_element_t *element_ptr)
wlmtk_image_t *	wlmtk_image_create (const char *image_path_ptr)
wlmtk_image_t *	wlmtk_image_create_scaled (const char *image_path_ptr, int width, int height)
void	wlmtk_image_destroy (wlmtk_image_t *image_ptr)
wlmtk_element_t *	wlmtk_image_element (wlmtk_image_t *image_ptr)
static void	test_create_destroy (bs_test_t *test_ptr)

Variables
static const wlmtk_element_vmt_t	_wlmtk_image_element_vmt
const bs_test_case_t	wlmtk_image_test_cases []

Detailed Description

Copyright

Copyright 2024 Google LLC

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Function Documentation

_wlmtk_image_create_wlr_buffer_from_image()

struct wlr_buffer * _wlmtk_image_create_wlr_buffer_from_image	(	const char *	path_ptr,
		int	width,
		int	height
	)

Creates a wlr_buffer that holds the image loaded from path, at that image's size.

Parameters

path_ptr
width	Desired width of the image. 0 0r negative to use the image's native width.
height	Desired height of the image. 0 0r negative to use the image's native height.

Returns

the wlr_buffer or NULL on error.

_wlmtk_image_element_destroy()

void _wlmtk_image_element_destroy ( wlmtk_element_t *  element_ptr )

static

Implements wlmtk_element_vmt_t::destroy – virtual dtor.

test_create_destroy()

void test_create_destroy ( bs_test_t *  test_ptr )

static

Exercises ctor and dtor.

wlmtk_image_create()

wlmtk_image_t * wlmtk_image_create

(

const char *

image_path_ptr

)

Creates a toolkit image: An element showing the image.

Parameters

image_path_ptr

Returns

Pointer to the toolkit image, or NULL on error.

wlmtk_image_create_scaled()

wlmtk_image_t * wlmtk_image_create_scaled	(	const char *	image_path_ptr,
		int	width,
		int	height
	)

Creates a toolkit image, scaled while preserving aspect ratio.

Parameters

image_path_ptr
width
height

Returns

Pointer to the toolkit image or NULL on error.

wlmtk_image_destroy()

void wlmtk_image_destroy

(

wlmtk_image_t *

image_ptr

)

Destroys the toolkit image.

Parameters

image_ptr

wlmtk_image_element()

wlmtk_element_t * wlmtk_image_element

(

wlmtk_image_t *

image_ptr

)

Returns

the parent wlmtk_element_t of image_ptr.

Variable Documentation

_wlmtk_image_element_vmt

const wlmtk_element_vmt_t _wlmtk_image_element_vmt

static

Initial value:

= {
    .destroy = _wlmtk_image_element_destroy,
}

The imag'es virtual method table for wlmtk_element_t superclass.

wlmtk_image_test_cases

const bs_test_case_t wlmtk_image_test_cases[]

Initial value:

= {
    { 1, "create_destroy", test_create_destroy },
    { 0, NULL, NULL }
}

Unit test cases.