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implement solid color rendering for swaybg

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This commit is contained in:
Zandr Martin 2016-07-30 18:50:13 -05:00
parent 2e4ece65da
commit 98aa59fdda
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GPG key ID: AA2BB8EF77F7BBDC
10 changed files with 197 additions and 157 deletions
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2
common/CMakeLists.txt
View file

@ -12,6 +12,8 @@ add_library(sway-common STATIC
stringop.c
)
target_link_libraries(sway-common m)
if(Backtrace_FOUND)
set_target_properties(sway-common
PROPERTIES

13
common/util.c
View file

@ -97,3 +97,16 @@ pid_t get_parent_pid(pid_t child) {
return -1;
}
uint32_t parse_color(const char *color) {
int len = strlen(color);
if (color[0] != '#' || (len != 7 && len != 9)) {
sway_log(L_DEBUG, "Invalid color %s, defaulting to color 0xFFFFFFFF", color);
return 0xFFFFFFFF;
}
uint32_t res = (uint32_t)strtol(color + 1, NULL, 16);
if (strlen(color) == 7) {
res = (res << 8) | 0xFF;
}
return res;
}

6
include/bar/config.h
View file

@ -5,6 +5,7 @@
#include <stdbool.h>
#include "list.h"
#include "util.h"
/**
* Colors for a box with background, border and text colors.
@ -47,11 +48,6 @@ struct config {
} colors;
};
/**
* Parse colors defined as hex string to uint32_t.
*/
uint32_t parse_color(const char *color);
/**
* Parse position top|bottom|left|right.
*/

2
include/config.h
View file

@ -81,7 +81,7 @@ struct output_config {
int enabled;
int width, height;
int x, y;
int scale;
int scale;
char *background;
char *background_option;
};

6
include/util.h
View file

@ -44,4 +44,10 @@ int get_modifier_names(const char **names, uint32_t modifier_masks);
*/
pid_t get_parent_pid(pid_t pid);
/**
* Given a string that represents an RGB(A) color, return a uint32_t
* version of the color.
*/
uint32_t parse_color(const char *color);
#endif

75
sway/commands.c
View file

@ -1651,47 +1651,52 @@ static struct cmd_results *cmd_output(int argc, char **argv) {
} else if (strcasecmp(command, "background") == 0 || strcasecmp(command, "bg") == 0) {
wordexp_t p;
if (++i >= argc) {
return cmd_results_new(CMD_INVALID, "output", "Missing background file.");
return cmd_results_new(CMD_INVALID, "output", "Missing background file or color specification.");
}
if (i + 1 >= argc) {
return cmd_results_new(CMD_INVALID, "output", "Missing background scaling mode.");
return cmd_results_new(CMD_INVALID, "output", "Missing background scaling mode or `solid_color`.");
}
char *src = join_args(argv + i, argc - i - 1);
char *mode = argv[argc - 1];
if (wordexp(src, &p, 0) != 0 || p.we_wordv[0] == NULL) {
return cmd_results_new(CMD_INVALID, "output", "Invalid syntax (%s)", src);
}
free(src);
src = p.we_wordv[0];
if (config->reading && *src != '/') {
char *conf = strdup(config->current_config);
char *conf_path = dirname(conf);
src = malloc(strlen(conf_path) + strlen(src) + 2);
sprintf(src, "%s/%s", conf_path, p.we_wordv[0]);
free(conf);
}
if (access(src, F_OK) == -1) {
return cmd_results_new(CMD_INVALID, "output", "Background file unreadable (%s)", src);
}
for (char *m = mode; *m; ++m) *m = tolower(*m);
// Check mode
bool valid = false;
size_t j;
for (j = 0; j < sizeof(bg_options) / sizeof(char *); ++j) {
if (strcasecmp(mode, bg_options[j]) == 0) {
valid = true;
break;
if (strcasecmp(argv[argc - 1], "solid_color") == 0) {
output->background = strdup(argv[argc - 2]);
output->background_option = strdup("solid_color");
} else {
char *src = join_args(argv + i, argc - i - 1);
char *mode = argv[argc - 1];
if (wordexp(src, &p, 0) != 0 || p.we_wordv[0] == NULL) {
return cmd_results_new(CMD_INVALID, "output", "Invalid syntax (%s)", src);
}
}
if (!valid) {
return cmd_results_new(CMD_INVALID, "output", "Invalid background scaling mode.");
}
output->background = strdup(src);
output->background_option = strdup(mode);
if (src != p.we_wordv[0]) {
free(src);
src = p.we_wordv[0];
if (config->reading && *src != '/') {
char *conf = strdup(config->current_config);
char *conf_path = dirname(conf);
src = malloc(strlen(conf_path) + strlen(src) + 2);
sprintf(src, "%s/%s", conf_path, p.we_wordv[0]);
free(conf);
}
if (access(src, F_OK) == -1) {
return cmd_results_new(CMD_INVALID, "output", "Background file unreadable (%s)", src);
}
for (char *m = mode; *m; ++m) *m = tolower(*m);
// Check mode
bool valid = false;
size_t j;
for (j = 0; j < sizeof(bg_options) / sizeof(char *); ++j) {
if (strcasecmp(mode, bg_options[j]) == 0) {
valid = true;
break;
}
}
if (!valid) {
return cmd_results_new(CMD_INVALID, "output", "Invalid background scaling mode.");
}
output->background = strdup(src);
output->background_option = strdup(mode);
if (src != p.we_wordv[0]) {
free(src);
}
wordfree(&p);
}
wordfree(&p);
}
}

4
sway/sway.5.txt
View file

@ -308,6 +308,10 @@ The default colors are:
Sets the wallpaper for the given output to the specified file, using the given
scaling mode (one of "stretch", "fill", "fit", "center", "tile").
**output** <name> <background|bg> <color> solid_color::
Sets the background of the given output to the specified color. _color_ should
be specified as an _#rrggbb_ (no alpha) color.
**output** <name> disable::
Disables the specified output.

13
swaybar/config.c
View file

@ -5,19 +5,6 @@
#include "log.h"
#include "bar/config.h"
uint32_t parse_color(const char *color) {
if (color[0] != '#') {
sway_log(L_DEBUG, "Invalid color %s, defaulting to color 0xFFFFFFFF", color);
return 0xFFFFFFFF;
}
char *end;
uint32_t res = (uint32_t)strtol(color + 1, &end, 16);
if (strlen(color) == 7) {
res = (res << 8) | 0xFF;
}
return res;
}
uint32_t parse_position(const char *position) {
if (strcmp("top", position) == 0) {
return DESKTOP_SHELL_PANEL_POSITION_TOP;

1
swaybar/status_line.c
View file

@ -6,6 +6,7 @@
#include "log.h"
#include "bar/config.h"
#include "bar/status_line.h"
#include "util.h"
#define I3JSON_MAXDEPTH 4
#define I3JSON_UNKNOWN 0

232
swaybg/main.c
View file

@ -1,6 +1,8 @@
#include "wayland-desktop-shell-client-protocol.h"
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <wayland-client.h>
#include <time.h>
#include <string.h>
@ -9,6 +11,7 @@
#include "client/cairo.h"
#include "log.h"
#include "list.h"
#include "util.h"
list_t *surfaces;
struct registry *registry;
@ -32,6 +35,23 @@ void sway_terminate(int exit_code) {
exit(exit_code);
}
bool is_valid_color(const char *color) {
int len = strlen(color);
if (len != 7 || color[0] != '#') {
sway_log(L_ERROR, "%s is not a valid color for swaybg. Color should be specified as #rrggbb (no alpha).", color);
return false;
}
int i;
for (i = 1; i < len; ++i) {
if (!isxdigit(color[i])) {
return false;
}
}
return true;
}
int main(int argc, const char **argv) {
init_log(L_INFO);
surfaces = create_list();
@ -57,112 +77,118 @@ int main(int argc, const char **argv) {
window_make_shell(window);
list_add(surfaces, window);
#ifdef WITH_GDK_PIXBUF
GError *err = NULL;
GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(argv[2], &err);
if (!pixbuf) {
sway_abort("Failed to load background image.");
}
cairo_surface_t *image = gdk_cairo_image_surface_create_from_pixbuf(pixbuf);
g_object_unref(pixbuf);
#else
cairo_surface_t *image = cairo_image_surface_create_from_png(argv[2]);
#endif //WITH_GDK_PIXBUF
if (!image) {
sway_abort("Failed to read background image.");
}
double width = cairo_image_surface_get_width(image);
double height = cairo_image_surface_get_height(image);
const char *scaling_mode_str = argv[3];
enum scaling_mode scaling_mode = SCALING_MODE_STRETCH;
if (strcmp(scaling_mode_str, "stretch") == 0) {
scaling_mode = SCALING_MODE_STRETCH;
} else if (strcmp(scaling_mode_str, "fill") == 0) {
scaling_mode = SCALING_MODE_FILL;
} else if (strcmp(scaling_mode_str, "fit") == 0) {
scaling_mode = SCALING_MODE_FIT;
} else if (strcmp(scaling_mode_str, "center") == 0) {
scaling_mode = SCALING_MODE_CENTER;
} else if (strcmp(scaling_mode_str, "tile") == 0) {
scaling_mode = SCALING_MODE_TILE;
if (strcmp(argv[3], "solid_color") == 0 && is_valid_color(argv[2])) {
cairo_set_source_u32(window->cairo, parse_color(argv[2]));
cairo_paint(window->cairo);
window_render(window);
} else {
sway_abort("Unsupported scaling mode: %s", scaling_mode_str);
}
for (i = 0; i < surfaces->length; ++i) {
struct window *window = surfaces->items[i];
if (window_prerender(window) && window->cairo) {
switch (scaling_mode) {
case SCALING_MODE_STRETCH:
cairo_scale(window->cairo,
(double) window->width / width,
(double) window->height / height);
cairo_set_source_surface(window->cairo, image, 0, 0);
break;
case SCALING_MODE_FILL:
{
double window_ratio = (double) window->width / window->height;
double bg_ratio = width / height;
if (window_ratio > bg_ratio) {
double scale = (double) window->width / width;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
0,
(double) window->height/2 / scale - height/2);
} else {
double scale = (double) window->height / height;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
(double) window->width/2 / scale - width/2,
0);
}
break;
}
case SCALING_MODE_FIT:
{
double window_ratio = (double) window->width / window->height;
double bg_ratio = width / height;
if (window_ratio > bg_ratio) {
double scale = (double) window->height / height;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
(double) window->width/2 / scale - width/2,
0);
} else {
double scale = (double) window->width / width;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
0,
(double) window->height/2 / scale - height/2);
}
break;
}
case SCALING_MODE_CENTER:
cairo_set_source_surface(window->cairo, image,
(double) window->width/2 - width/2,
(double) window->height/2 - height/2);
break;
case SCALING_MODE_TILE:
{
cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
cairo_set_source(window->cairo, pattern);
break;
}
default:
sway_abort("Scaling mode '%s' not implemented yet!", scaling_mode_str);
}
cairo_paint(window->cairo);
window_render(window);
#ifdef WITH_GDK_PIXBUF
GError *err = NULL;
GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(argv[2], &err);
if (!pixbuf) {
sway_abort("Failed to load background image.");
}
}
cairo_surface_t *image = gdk_cairo_image_surface_create_from_pixbuf(pixbuf);
g_object_unref(pixbuf);
#else
cairo_surface_t *image = cairo_image_surface_create_from_png(argv[2]);
#endif //WITH_GDK_PIXBUF
if (!image) {
sway_abort("Failed to read background image.");
}
double width = cairo_image_surface_get_width(image);
double height = cairo_image_surface_get_height(image);
cairo_surface_destroy(image);
const char *scaling_mode_str = argv[3];
enum scaling_mode scaling_mode = SCALING_MODE_STRETCH;
if (strcmp(scaling_mode_str, "stretch") == 0) {
scaling_mode = SCALING_MODE_STRETCH;
} else if (strcmp(scaling_mode_str, "fill") == 0) {
scaling_mode = SCALING_MODE_FILL;
} else if (strcmp(scaling_mode_str, "fit") == 0) {
scaling_mode = SCALING_MODE_FIT;
} else if (strcmp(scaling_mode_str, "center") == 0) {
scaling_mode = SCALING_MODE_CENTER;
} else if (strcmp(scaling_mode_str, "tile") == 0) {
scaling_mode = SCALING_MODE_TILE;
} else {
sway_abort("Unsupported scaling mode: %s", scaling_mode_str);
}
for (i = 0; i < surfaces->length; ++i) {
struct window *window = surfaces->items[i];
if (window_prerender(window) && window->cairo) {
switch (scaling_mode) {
case SCALING_MODE_STRETCH:
cairo_scale(window->cairo,
(double) window->width / width,
(double) window->height / height);
cairo_set_source_surface(window->cairo, image, 0, 0);
break;
case SCALING_MODE_FILL:
{
double window_ratio = (double) window->width / window->height;
double bg_ratio = width / height;
if (window_ratio > bg_ratio) {
double scale = (double) window->width / width;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
0,
(double) window->height/2 / scale - height/2);
} else {
double scale = (double) window->height / height;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
(double) window->width/2 / scale - width/2,
0);
}
break;
}
case SCALING_MODE_FIT:
{
double window_ratio = (double) window->width / window->height;
double bg_ratio = width / height;
if (window_ratio > bg_ratio) {
double scale = (double) window->height / height;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
(double) window->width/2 / scale - width/2,
0);
} else {
double scale = (double) window->width / width;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
0,
(double) window->height/2 / scale - height/2);
}
break;
}
case SCALING_MODE_CENTER:
cairo_set_source_surface(window->cairo, image,
(double) window->width/2 - width/2,
(double) window->height/2 - height/2);
break;
case SCALING_MODE_TILE:
{
cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
cairo_set_source(window->cairo, pattern);
break;
}
default:
sway_abort("Scaling mode '%s' not implemented yet!", scaling_mode_str);
}
cairo_paint(window->cairo);
window_render(window);
}
}
cairo_surface_destroy(image);
}
while (wl_display_dispatch(registry->display) != -1);