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Add image preview support with libsixel

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Night Kaly 2024-11-13 09:36:02 +00:00
parent ec67b06594
commit 0caf9527a5
Signed by: night0721
SSH key fingerprint: SHA256:B/hgVwUoBpx5vdNsXl9w8XwZljA9766uk6T4ubZp5HM
1 changed files with 76 additions and 59 deletions
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135
ccc.c
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@ -13,6 +13,8 @@
#include <sys/stat.h> #include <sys/stat.h>
#include <sys/ioctl.h> #include <sys/ioctl.h>
#include <sixel.h>
#include "config.h" #include "config.h"
#include "file.h" #include "file.h"
#include "icons.h" #include "icons.h"
@ -870,12 +872,14 @@ void show_file_content(void)
return; return;
} }
int c; if (strstr(current_file.name, ".jpg") == NULL && strstr(current_file.name, ".png") == NULL) {
/* Check if its binary */ int c;
while ((c = fgetc(file)) != EOF) { /* Check if its binary */
if (c == '\0') { while ((c = fgetc(file)) != EOF) {
bprintf("binary"); if (c == '\0') {
return; bprintf("binary");
return;
}
} }
} }
int pipe_fd[2]; int pipe_fd[2];
@ -887,67 +891,80 @@ void show_file_content(void)
if (pid == 0) { if (pid == 0) {
/* Child */ /* Child */
move_cursor(1, half_width); move_cursor(1, half_width);
close(pipe_fd[0]); if (strstr(current_file.name, ".jpg") || strstr(current_file.name, ".png")) {
dup2(pipe_fd[1], STDOUT_FILENO); sixel_encoder_t *encoder = NULL;
dup2(pipe_fd[1], STDERR_FILENO); sixel_encoder_new(&encoder, NULL);
close(pipe_fd[1]); /* Should be enough for most terminal */
execlp("vip", "vip", "-c", current_file.name, NULL); char width[5];
snprintf(width, 5, "%d", (cols - half_width) * 6);
sixel_encoder_setopt(encoder, 'w', width);
sixel_encoder_encode(encoder, current_file.name);
sixel_encoder_unref(encoder);
} else {
close(pipe_fd[0]);
dup2(pipe_fd[1], STDOUT_FILENO);
dup2(pipe_fd[1], STDERR_FILENO);
close(pipe_fd[1]);
execlp("vip", "vip", "-c", current_file.name, NULL);
}
_exit(1); _exit(1);
} else if (pid > 0) { } else if (pid > 0) {
/* Parent */ /* Parent */
close(pipe_fd[1]); if (!strstr(current_file.name, ".jpg") && !strstr(current_file.name, ".png")) {
char buffer[4096]; close(pipe_fd[1]);
int row = 1; char buffer[4096];
FILE *stream = fdopen(pipe_fd[0], "r"); int row = 1;
while (fgets(buffer, sizeof(buffer), stream) != NULL && row <= rows - 1) { FILE *stream = fdopen(pipe_fd[0], "r");
buffer[strcspn(buffer, "\n")] = 0; while (fgets(buffer, sizeof(buffer), stream) != NULL && row <= rows - 1) {
buffer[strcspn(buffer, "\n")] = 0;
if (buffer[0] == '\0' || strspn(buffer, " \t") == strlen(buffer)) { if (buffer[0] == '\0' || strspn(buffer, " \t") == strlen(buffer)) {
move_cursor(row++, half_width); move_cursor(row++, half_width);
putchar('\n'); putchar('\n');
continue; continue;
}
/* Length without ANSI codes */
size_t effective_len = get_effective_length(buffer);
size_t offset = 0;
while (effective_len > 0 && row <= rows - 1) {
move_cursor(row++, half_width);
/* Calculate the chunk size based on effective length */
size_t chunk_size = (effective_len > (cols - half_width)) ? (cols - half_width) : effective_len;
/* Find the actual end position in the string to avoid cutting ANSI sequences */
size_t actual_end = offset;
size_t visible_count = 0;
bool in_ansi_sequence = false;
while (visible_count < chunk_size && buffer[actual_end] != '\0') {
if (buffer[actual_end] == '\033') {
in_ansi_sequence = true;
}
if (!in_ansi_sequence) {
visible_count++;
}
if (in_ansi_sequence && buffer[actual_end] == 'm') {
in_ansi_sequence = false;
}
actual_end++;
} }
/* Length without ANSI codes */
size_t effective_len = get_effective_length(buffer);
size_t offset = 0;
while (effective_len > 0 && row <= rows - 1) {
move_cursor(row++, half_width);
/* Print the chunk from `offset` to `actual_end` */ /* Calculate the chunk size based on effective length */
print_chunk(buffer, offset, actual_end); size_t chunk_size = (effective_len > (cols - half_width)) ? (cols - half_width) : effective_len;
/* Update offsets based on the effective length and ANSI-aware chunk */ /* Find the actual end position in the string to avoid cutting ANSI sequences */
offset = actual_end; size_t actual_end = offset;
effective_len -= chunk_size; size_t visible_count = 0;
bool in_ansi_sequence = false;
putchar('\n'); while (visible_count < chunk_size && buffer[actual_end] != '\0') {
} if (buffer[actual_end] == '\033') {
/* Check if the line ends with the ANSI reset sequence `\033[0m` */ in_ansi_sequence = true;
size_t len = strlen(buffer); }
if (len >= 4 && strcmp(&buffer[len - 4], "\033[0m") == 0) { if (!in_ansi_sequence) {
/* Line ends with ANSI reset, print it */ visible_count++;
printf("\033[0m"); }
if (in_ansi_sequence && buffer[actual_end] == 'm') {
in_ansi_sequence = false;
}
actual_end++;
}
/* Print the chunk from `offset` to `actual_end` */
print_chunk(buffer, offset, actual_end);
/* Update offsets based on the effective length and ANSI-aware chunk */
offset = actual_end;
effective_len -= chunk_size;
putchar('\n');
}
/* Check if the line ends with the ANSI reset sequence `\033[0m` */
size_t len = strlen(buffer);
if (len >= 4 && strcmp(&buffer[len - 4], "\033[0m") == 0) {
/* Line ends with ANSI reset, print it */
printf("\033[0m");
}
} }
fclose(stream); fclose(stream);
} }