nsxiv/nsxiv.h
Lu Xu a2339e70fd Use zoom steps instead of hard-coding levels (#92)
Co-authored-by: NRK <nrk@disroot.org>
Co-authored-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
2021-09-25 11:11:21 +06:00

465 lines
7.8 KiB
C

/* Copyright 2011 Bert Muennich
*
* This file is a part of nsxiv.
*
* nsxiv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
*
* nsxiv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with nsxiv. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef NSXIV_H
#define NSXIV_H
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <sys/time.h>
#include <sys/types.h>
#include <Imlib2.h>
#include <X11/Xlib.h>
/*
* Annotation for functions called in cleanup().
* These functions are not allowed to call error(!0, ...) or exit().
*/
#define CLEANUP
#ifndef MIN
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a,b) ((a) > (b) ? (a) : (b))
#endif
#ifndef ABS
#define ABS(a) ((a) > 0 ? (a) : -(a))
#endif
#define ARRLEN(a) (sizeof(a) / sizeof((a)[0]))
#define STREQ(s1,s2) (strcmp((s1), (s2)) == 0)
#define TV_DIFF(t1,t2) (((t1)->tv_sec - (t2)->tv_sec ) * 1000 + \
((t1)->tv_usec - (t2)->tv_usec) / 1000)
#define TV_SET_MSEC(tv,t) { \
(tv)->tv_sec = (t) / 1000; \
(tv)->tv_usec = (t) % 1000 * 1000; \
}
#define TV_ADD_MSEC(tv,t) { \
(tv)->tv_sec += (t) / 1000; \
(tv)->tv_usec += (t) % 1000 * 1000; \
}
typedef enum {
BO_BIG_ENDIAN,
BO_LITTLE_ENDIAN
} byteorder_t;
typedef enum {
MODE_IMAGE,
MODE_THUMB
} appmode_t;
typedef enum {
DIR_LEFT = 1,
DIR_RIGHT = 2,
DIR_UP = 4,
DIR_DOWN = 8
} direction_t;
typedef enum {
DEGREE_90 = 1,
DEGREE_180 = 2,
DEGREE_270 = 3
} degree_t;
typedef enum {
FLIP_HORIZONTAL = 1,
FLIP_VERTICAL = 2
} flipdir_t;
typedef enum {
SCALE_DOWN,
SCALE_FIT,
SCALE_FILL,
SCALE_WIDTH,
SCALE_HEIGHT,
SCALE_ZOOM
} scalemode_t;
typedef enum {
DRAG_RELATIVE,
DRAG_ABSOLUTE
} dragmode_t;
typedef enum {
CURSOR_ARROW,
CURSOR_DRAG,
CURSOR_WATCH,
CURSOR_LEFT,
CURSOR_RIGHT,
CURSOR_NONE,
CURSOR_COUNT
} cursor_t;
typedef enum {
FF_WARN = 1,
FF_MARK = 2,
FF_TN_INIT = 4
} fileflags_t;
typedef enum {
SUFFIX_EMPTY,
SUFFIX_BASENAME,
SUFFIX_FULLPATH,
} suffixmode_t;
typedef struct {
const char *name; /* as given by user */
const char *path; /* always absolute */
fileflags_t flags;
} fileinfo_t;
/* timeouts in milliseconds: */
enum {
TO_REDRAW_RESIZE = 75,
TO_REDRAW_THUMBS = 200,
TO_CURSOR_HIDE = 1200,
TO_DOUBLE_CLICK = 300
};
typedef void (*timeout_f)(void);
typedef struct arl arl_t;
typedef struct img img_t;
typedef struct opt opt_t;
typedef struct tns tns_t;
typedef struct win win_t;
/* autoreload.c */
struct arl {
int fd;
int wd_dir;
int wd_file;
char *filename;
};
void arl_init(arl_t*);
void arl_cleanup(arl_t*);
void arl_setup(arl_t*, const char* /* result of realpath(3) */);
bool arl_handle(arl_t*);
/* commands.c */
typedef int arg_t;
typedef bool (*cmd_f)(arg_t);
#define G_CMD(c) g_##c,
#define I_CMD(c) i_##c,
#define T_CMD(c) t_##c,
typedef enum {
#include "commands.lst"
CMD_COUNT
} cmd_id_t;
typedef struct {
int mode;
cmd_f func;
} cmd_t;
typedef struct {
unsigned int mask;
KeySym ksym;
cmd_id_t cmd;
arg_t arg;
} keymap_t;
typedef struct {
unsigned int mask;
unsigned int button;
cmd_id_t cmd;
arg_t arg;
} button_t;
extern const cmd_t cmds[CMD_COUNT];
/* image.c */
typedef struct {
Imlib_Image im;
unsigned int delay;
} img_frame_t;
typedef struct {
img_frame_t *frames;
int cap;
int cnt;
int sel;
bool animate;
int framedelay;
int length;
} multi_img_t;
struct img {
Imlib_Image im;
int w;
int h;
win_t *win;
float x;
float y;
scalemode_t scalemode;
float zoom;
bool checkpan;
bool dirty;
bool aa;
bool alpha;
Imlib_Color_Modifier cmod;
int gamma;
struct {
bool on;
int delay;
} ss;
multi_img_t multi;
};
void img_init(img_t*, win_t*);
bool img_load(img_t*, const fileinfo_t*);
CLEANUP void img_close(img_t*, bool);
void img_render(img_t*);
bool img_fit_win(img_t*, scalemode_t);
bool img_zoom(img_t*, int);
bool img_zoom_to(img_t*, float);
bool img_pos(img_t*, float, float);
bool img_move(img_t*, float, float);
bool img_pan(img_t*, direction_t, int);
bool img_pan_edge(img_t*, direction_t);
void img_rotate(img_t*, degree_t);
void img_flip(img_t*, flipdir_t);
void img_toggle_antialias(img_t*);
bool img_change_gamma(img_t*, int);
bool img_frame_navigate(img_t*, int);
bool img_frame_animate(img_t*);
/* options.c */
struct opt {
/* file list: */
char **filenames;
bool from_stdin;
bool to_stdout;
char stdout_separator;
bool recursive;
int filecnt;
int startnum;
/* image: */
scalemode_t scalemode;
float zoom;
bool animate;
int gamma;
int slideshow;
int framerate;
/* window: */
bool fullscreen;
bool hide_bar;
long embed;
char *geometry;
char *res_name;
const char *title_prefix;
suffixmode_t title_suffixmode;
/* misc flags: */
bool quiet;
bool thumb_mode;
bool clean_cache;
bool private_mode;
};
extern const opt_t *options;
void print_usage(void);
void print_version(void);
void parse_options(int, char**);
/* thumbs.c */
typedef struct {
Imlib_Image im;
int w;
int h;
int x;
int y;
} thumb_t;
struct tns {
fileinfo_t *files;
thumb_t *thumbs;
const int *cnt;
int *sel;
int initnext;
int loadnext;
int first, end;
int r_first, r_end;
win_t *win;
int x;
int y;
int cols;
int rows;
int zl;
int bw;
int dim;
bool dirty;
};
void tns_clean_cache(tns_t*);
void tns_init(tns_t*, fileinfo_t*, const int*, int*, win_t*);
CLEANUP void tns_free(tns_t*);
bool tns_load(tns_t*, int, bool, bool);
void tns_unload(tns_t*, int);
void tns_render(tns_t*);
void tns_mark(tns_t*, int, bool);
void tns_highlight(tns_t*, int, bool);
bool tns_move_selection(tns_t*, direction_t, int);
bool tns_scroll(tns_t*, direction_t, bool);
bool tns_zoom(tns_t*, int);
int tns_translate(tns_t*, int, int);
/* util.c */
#include <dirent.h>
typedef struct {
DIR *dir;
char *name;
int d;
bool recursive;
char **stack;
int stcap;
int stlen;
} r_dir_t;
extern const char *progname;
void* emalloc(size_t);
void* erealloc(void*, size_t);
char* estrdup(const char*);
void error(int, int, const char*, ...);
void size_readable(float*, const char**);
int r_opendir(r_dir_t*, const char*, bool);
int r_closedir(r_dir_t*);
char* r_readdir(r_dir_t*, bool);
int r_mkdir(char*);
/* window.c */
#include <X11/Xutil.h>
#include <X11/Xft/Xft.h>
enum {
BAR_L_LEN = 512,
BAR_R_LEN = 64
};
enum {
ATOM_WM_DELETE_WINDOW,
ATOM__NET_WM_NAME,
ATOM__NET_WM_ICON_NAME,
ATOM__NET_WM_ICON,
ATOM__NET_WM_STATE,
ATOM__NET_WM_PID,
ATOM__NET_WM_STATE_FULLSCREEN,
ATOM_COUNT
};
typedef struct {
Display *dpy;
int scr;
int scrw, scrh;
Visual *vis;
Colormap cmap;
int depth;
} win_env_t;
typedef struct {
size_t size;
char *p;
char *buf;
} win_bar_t;
struct win {
Window xwin;
win_env_t env;
XftColor win_bg;
XftColor win_fg;
XftColor bar_bg;
XftColor bar_fg;
XftColor mrk_fg;
int x;
int y;
unsigned int w;
unsigned int h; /* = win height - bar height */
unsigned int bw;
struct {
int w;
int h;
Pixmap pm;
} buf;
struct {
unsigned int h;
win_bar_t l;
win_bar_t r;
} bar;
};
extern Atom atoms[ATOM_COUNT];
void win_init(win_t*);
void win_open(win_t*);
CLEANUP void win_close(win_t*);
bool win_configure(win_t*, XConfigureEvent*);
void win_toggle_fullscreen(win_t*);
void win_toggle_bar(win_t*);
void win_clear(win_t*);
void win_draw(win_t*);
void win_draw_rect(win_t*, int, int, int, int, bool, int, unsigned long);
void win_set_title(win_t*, const char*);
void win_set_cursor(win_t*, cursor_t);
void win_cursor_pos(win_t*, int*, int*);
#endif /* NSXIV_H */