wlmclock.c File Reference

#include <cairo.h>
#include <libbase/libbase.h>
#include <wlclient/wlclient.h>
#include <math.h>
#include <primitives/primitives.h>
#include <primitives/segment_display.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <time.h>
#include "wlclient/icon.h"
#include "wlclient/dblbuf.h"

Include dependency graph for wlmclock.c:

Functions
uint64_t	next_draw_time (void)
bool	icon_callback (bs_gfxbuf_t *gfxbuf_ptr, void *ud_ptr)
void	timer_callback (wlmcl_client_t *client_ptr, void *ud_ptr)
static void	_handle_configure (void *ud_ptr, uint32_t width, uint32_t height)
int	main (int argc, char **argv)

Variables
static wlmcl_client_t *	wlclient_ptr
static wlmcl_dblbuf_t *	dblbuf_ptr
static const uint32_t	color_led = 0xff55ffff
static const uint32_t	color_off = 0xff114444
static const uint32_t	color_background = 0xff111111

Detailed Description

Demonstrator for using the icon protocol.

Copyright

Copyright (c) 2026 Philipp Kaeser (kaese.nosp@m.r@gu.nosp@m.bbe.c.nosp@m.h) Copyright 2023 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.

Example app for libwlclient.

Copyright

Copyright (c) 2026 Philipp Kaeser (kaese.nosp@m.r@gu.nosp@m.bbe.c.nosp@m.h) 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

_handle_configure()

static void _handle_configure ( void *  ud_ptr, uint32_t  width, uint32_t  height  )

static

Handles configure events.

icon_callback()

bool icon_callback	(	bs_gfxbuf_t *	gfxbuf_ptr,
		void *	ud_ptr
	)

Draws contents into the icon buffer.

Parameters

gfxbuf_ptr
ud_ptr

main()

int main	(	int	argc,
		char **	argv
	)

Main program.

next_draw_time()

uint64_t next_draw_time

(

void

)

Returns the next full second for when to draw the clock.

timer_callback()

void timer_callback	(	wlmcl_client_t *	client_ptr,
		void *	ud_ptr
	)

Called once per second.

Variable Documentation

color_background

const uint32_t color_background = 0xff111111

static

Background color in the VFD-style display.

color_led

const uint32_t color_led = 0xff55ffff

static

Foreground color of a LED in the VFD-style display.

color_off

const uint32_t color_off = 0xff114444

static

Color of a turned-off element in the VFD-style display.

dblbuf_ptr

wlmcl_dblbuf_t* dblbuf_ptr

static

Double buffer.

wlclient_ptr

wlmcl_client_t* wlclient_ptr

static

State of the client.