background.c File Reference

#include "background.h"
#include <libbase/libbase.h>
#include <stdbool.h>
#include <stdlib.h>
#include <wayland-server-core.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/util/edges.h>

Include dependency graph for background.c:

Classes
struct	_wlmaker_background_t
struct	wlmaker_background_panel_t
struct	wlmaker_background_panel_update_arg_t

Functions
static void	_wlmaker_background_handle_output_layout_change (struct wl_listener *listener_ptr, void *data_ptr)
static bool	_wlmaker_background_update_output (struct wl_list *link_ptr, void *ud_ptr)
static wlmaker_background_panel_t *	_wlmaker_background_panel_create (wlmtk_layer_t *layer_ptr, struct wlr_output *wlr_output_ptr, uint32_t color)
static void	_wlmaker_background_panel_destroy (wlmaker_background_panel_t *background_panel_ptr)
static int	_wlmaker_background_panel_node_cmp (const bs_avltree_node_t *avlnode_ptr, const void *key_ptr)
static void	_wlmaker_background_panel_node_destroy (bs_avltree_node_t *avlnode_ptr)
static void	_wlmaker_background_panel_element_destroy (wlmtk_element_t *element_ptr)
static uint32_t	_wlmaker_background_panel_request_size (wlmtk_panel_t *panel_ptr, int width, int height)
wlmaker_background_t *	wlmaker_background_create (wlmtk_workspace_t *workspace_ptr, struct wlr_output_layout *wlr_output_layout_ptr, uint32_t color)
void	wlmaker_background_destroy (wlmaker_background_t *background_ptr)

Variables
static const wlmtk_element_vmt_t	_wlmaker_background_panel_element_vmt
static const wlmtk_panel_vmt_t	_wlmaker_background_panel_vmt
static const wlmtk_panel_positioning_t	_wlmaker_background_panel_position

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

_wlmaker_background_handle_output_layout_change()

void _wlmaker_background_handle_output_layout_change ( struct wl_listener *  listener_ptr, void *  data_ptr  )

static

Handles the change event of wlr_output_layout::events.

Walks through outputs of wlmaker_background_t::wlr_output_layout_ptr, and creates, removes or updates removes panels as needed.

Parameters

listener_ptr
data_ptr

_wlmaker_background_panel_create()

wlmaker_background_panel_t * _wlmaker_background_panel_create ( wlmtk_layer_t *  layer_ptr, struct wlr_output *  wlr_output_ptr, uint32_t  color  )

static

Ctor.

_wlmaker_background_panel_destroy()

void _wlmaker_background_panel_destroy ( wlmaker_background_panel_t *  background_panel_ptr )

static

Dtor.

_wlmaker_background_panel_element_destroy()

void _wlmaker_background_panel_element_destroy ( wlmtk_element_t *  element_ptr )

static

Implements wlmtk_element_vmt_t::destroy. Dtor for the panel.

_wlmaker_background_panel_node_cmp()

int _wlmaker_background_panel_node_cmp ( const bs_avltree_node_t *  avlnode_ptr, const void *  key_ptr  )

static

Comparator for wlmaker_background_t::output_tree_ptr.

_wlmaker_background_panel_node_destroy()

void _wlmaker_background_panel_node_destroy ( bs_avltree_node_t *  avlnode_ptr )

static

Destructor for wlmaker_background_panel_t.

_wlmaker_background_panel_request_size()

uint32_t _wlmaker_background_panel_request_size ( wlmtk_panel_t *  panel_ptr, int  width, int  height  )

static

Implements wlmtk_panel_vmt_t::request_size. Updates the panel size.

_wlmaker_background_update_output()

bool _wlmaker_background_update_output ( struct wl_list *  link_ptr, void *  ud_ptr  )

static

Updates the output.

Parameters

link_ptr	struct wlr_output_layout_output::link.
ud_ptr	wlmaker_background_panel_update_arg_t.

Returns

true on success, or false on error.

wlmaker_background_create()

wlmaker_background_t * wlmaker_background_create	(	wlmtk_workspace_t *	workspace_ptr,
		struct wlr_output_layout *	wlr_output_layout_ptr,
		uint32_t	color
	)

Creates a background, derived from a wlmtk_panel_t.

Parameters

workspace_ptr
wlr_output_layout_ptr
color

Returns

A handle for the background, or NULL on error.

wlmaker_background_destroy()

void wlmaker_background_destroy

(

wlmaker_background_t *

background_ptr

)

Destroys the background.

Parameters

background_ptr

Variable Documentation

_wlmaker_background_panel_element_vmt

const wlmtk_element_vmt_t _wlmaker_background_panel_element_vmt

static

Initial value:

= {
    .destroy = _wlmaker_background_panel_element_destroy,
}

The background panel's element superclass virtual method.

_wlmaker_background_panel_position

const wlmtk_panel_positioning_t _wlmaker_background_panel_position

static

Initial value:

= {
    .desired_width = 0,
    .desired_height = 0,
    .anchor = WLR_EDGE_LEFT | WLR_EDGE_TOP | WLR_EDGE_RIGHT | WLR_EDGE_BOTTOM,
}

Panel's position: Anchored to all 4 edges, and auto-sized.

_wlmaker_background_panel_vmt

const wlmtk_panel_vmt_t _wlmaker_background_panel_vmt

static

Initial value:

= {
    .request_size = _wlmaker_background_panel_request_size
}

The background panels' virtual method table.