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pqiv.c
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pqiv.c
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/**
* pqiv
*
* Copyright (c) 2013-2017, Phillip Berndt
*
* This program 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 3 of the License, or
* (at your option) any later version.
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#define _XOPEN_SOURCE 700
#define _GNU_SOURCE
#include "pqiv.h"
#include "lib/config_parser.h"
#include "lib/thumbnailcache.h"
#include "lib/strnatcmp.h"
#include <cairo/cairo.h>
#include <gio/gio.h>
#include <glib/gstdio.h>
#include <errno.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <sys/types.h>
#include <unistd.h>
#include <assert.h>
#include <locale.h>
#ifdef _WIN32
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x500
#else
#if _WIN32_WINNT < 0x800
#ifdef __MINGW32__
#pragma message "Microsoft Windows supported is limited to Windows 2000 and higher, but your mingw version indicates that it does not support those versions. Building might fail."
#else
#error Microsoft Windows supported is limited to Windows 2000 and higher.
#endif
#endif
#endif
#include <windows.h>
#include <gio/gwin32inputstream.h>
#else
#include <sys/wait.h>
#include <gio/gunixinputstream.h>
#endif
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <cairo/cairo-xlib.h>
#if GTK_MAJOR_VERSION < 3
#include <X11/Xatom.h>
#endif
#endif
#ifdef DEBUG
#ifndef _WIN32
#include <sys/resource.h>
#endif
#define PQIV_VERSION_DEBUG "-debug"
#else
#define PQIV_VERSION_DEBUG ""
#endif
#if defined(__clang__) || defined(__GNUC__)
#define UNUSED_FUNCTION __attribute__((unused))
#if defined(__clang__)
#define PQIV_DISABLE_PEDANTIC _Pragma("clang diagnostic push") _Pragma("clang diagnostic ignored \"-Wpedantic\"")
#define PQIV_ENABLE_PEDANTIC _Pragma("clang diagnostic pop")
#elif defined(__GNUC__) || defined(__GNUG__)
#define PQIV_DISABLE_PEDANTIC _Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wpedantic\"")
#define PQIV_ENABLE_PEDANTIC _Pragma("GCC diagnostic pop")
#endif
#else
#define UNUSED_FUNCTION
#define PQIV_DISABLE_PEDANTIC
#define PQIV_ENABLE_PEDANTIC
#endif
#if !GLIB_CHECK_VERSION(2, 32, 0)
#define g_thread_new(name, func, data) g_thread_create(func, data, FALSE, NULL)
#endif
// GTK 2 does not define keyboard aliases the way we do
#if GTK_MAJOR_VERSION < 3 // {{{
#define GDK_BUTTON_PRIMARY 1
#define GDK_BUTTON_MIDDLE 2
#define GDK_BUTTON_SECONDARY 3
#define GDK_KEY_VoidSymbol 0xffffff
#include <gdk/gdkkeysyms.h>
#endif // }}}
// Global variables and function signatures {{{
// The list of file type handlers and file type initializer function
void initialize_file_type_handlers(const gchar * const * disabled_backends);
// Storage of the file list
// These lists are accessed from multiple threads:
// * The main thread (count, next, prev, ..)
// * The option parser thread, if --lazy-load is used
// * The image loader thread
// Our thread safety strategy is as follows:
// * Wrap all file_tree operations with mutexes
// * Use weak references for any operation during which the image might
// invalidate.
// * If a weak reference is invalid, abort the pending operation
// * If an operation can't be aborted, lock the mutex from the start
// until it completes
// * If an operation takes too long for this to work, redesign the
// operation
G_LOCK_DEFINE_STATIC(file_tree);
// In case of trouble:
#if 0
#define D_LOCK(x) g_print("Waiting for lock " #x " at line %d\n", __LINE__); G_LOCK(x); g_print(" Locked " #x " at line %d\n", __LINE__)
#define D_UNLOCK(x) g_print("Unlocked " #x " at line %d\n", __LINE__); G_UNLOCK(x);
#else
#define D_LOCK(x) G_LOCK(x)
#define D_UNLOCK(x) G_UNLOCK(x)
#endif
BOSTree *file_tree;
BOSNode *current_file_node = NULL;
BOSNode *earlier_file_node = NULL;
BOSNode *image_loader_thread_currently_loading = NULL;
gboolean file_tree_valid = FALSE;
// We asynchroniously load images in a separate thread
struct image_loader_queue_item {
BOSNode *node_ref;
int purpose;
};
GAsyncQueue *image_loader_queue = NULL;
GCancellable *image_loader_cancellable = NULL;
// Unloading of files is also handled by that thread, in a GC fashion
// For that, we keep a list of loaded files
GList *loaded_files_list = NULL;
// Filter for path traversing upon building the file list
GHashTable *load_images_file_filter_hash_table;
GtkFileFilterInfo *load_images_file_filter_info;
GTimer *load_images_timer;
// Easy access to the file_t within a node
// Remember to always lock file_tree!
#define FILE(x) ((file_t *)(x)->data)
#define CURRENT_FILE FILE(current_file_node)
#define next_file() relative_image_pointer(1)
#define previous_file() relative_image_pointer(-1)
#define is_current_file_loaded() (current_file_node && CURRENT_FILE->is_loaded)
// The node to be displayed first, used in conjunction with --browse
BOSNode *browse_startup_node = NULL;
// When loading additional images via the -r option, we need to know whether the
// image loader initialization succeeded, because we can't just cancel if it does
// not (it checks if any image is loadable and fails if not)
gboolean image_loader_initialization_succeeded = FALSE;
// We sometimes need to decide whether we have to draw the image or if it already
// is. We use this variable for that.
gboolean current_image_drawn = FALSE;
// Variables related to the window, display, etc.
GtkWindow *main_window;
gboolean main_window_visible = FALSE;
// Detection of tiled WMs: They should ignore our resize events
gint requested_main_window_resize_pos_callback_id = -1;
gint requested_main_window_width = -1;
gint requested_main_window_height = -1;
gboolean wm_ignores_size_requests = FALSE;
gint main_window_width = 10;
gint main_window_height = 10;
gboolean main_window_in_fullscreen = FALSE;
int fullscreen_transition_source_id = -1;
GdkRectangle screen_geometry = { 0, 0, 0, 0 };
gint screen_scale_factor = 1;
gboolean wm_supports_fullscreen = TRUE;
// If a WM indicates no moveresize support that's a hint it's a tiling WM
gboolean wm_supports_moveresize = TRUE;
// If a WM indicates no framedrawn support it's subject to tearing effects
gboolean wm_supports_framedrawn = TRUE;
cairo_pattern_t *background_checkerboard_pattern = NULL;
gboolean gui_initialized = FALSE;
int global_argc;
char **global_argv;
// Those surfaces are here to store scaled image versions (to reduce
// processor load) and to store the last visible image to have something to
// display while fading and while the (new) current image has not been loaded
// yet.
int last_visible_surface_width = -1;
int last_visible_surface_height = -1;
cairo_surface_t *last_visible_surface = NULL;
cairo_surface_t *fading_surface = NULL;
cairo_surface_t *current_scaled_image_surface = NULL;
#if !defined(CONFIGURED_WITHOUT_INFO_TEXT) || !defined(CONFIGURED_WITHOUT_MONTAGE_MODE)
struct {
double fg_red;
double fg_green;
double fg_blue;
double bg_red;
double bg_green;
double bg_blue;
} option_box_colors = { 0., 0., 0., 1., 1., 0. };
#endif
#ifndef CONFIGURED_WITHOUT_INFO_TEXT
gint current_info_text_cached_font_size = -1;
gchar *current_info_text = NULL;
cairo_rectangle_int_t current_info_text_bounding_box = { 0, 0, 0, 0 };
#endif
// Current state of the displayed image and user interaction
// This matrix stores rotations and reflections (makes ui with scaling/transforming easier)
cairo_matrix_t current_transformation;
gdouble current_scale_level = 1.0;
gint current_shift_x = 0;
gint current_shift_y = 0;
guint32 last_button_press_time = 0;
guint32 last_button_release_time = 0;
guint current_image_animation_timeout_id = 0;
gdouble current_image_animation_speed_scale = 1.0;
// -1 means no slideshow, 0 means active slideshow but no current timeout
// source set, anything bigger than that actually is a slideshow id.
gint slideshow_timeout_id = -1;
// A list containing references to the images in shuffled order
typedef struct {
gboolean viewed;
BOSNode *node;
} shuffled_image_ref_t;
guint shuffled_images_visited_count = 0;
guint shuffled_images_list_length = 0;
GList *shuffled_images_list = NULL;
#define LIST_SHUFFLED_IMAGE(x) (((shuffled_image_ref_t *)x->data))
#ifndef CONFIGURED_WITHOUT_EXTERNAL_COMMANDS
// User options
gchar *external_image_filter_commands[] = {
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL
};
#endif
// Scaling mode, only 0-2 are available in the default UI, FIXED_SCALE can be
// set using a command line option, SCALE_TO_FIT_PX and SCALE_TO_FIT_WINDOW only using an action
enum { NO_SCALING=0, AUTO_SCALEDOWN, AUTO_SCALEUP, FIXED_SCALE, SCALE_TO_FIT_WINDOW, SCALE_TO_FIT_PX } option_scale = AUTO_SCALEDOWN;
double option_scale_screen_fraction = .8;
struct {
guint width;
guint height;
} scale_to_fit_size;
gboolean scale_override = FALSE;
const gchar *option_window_title = "pqiv: $FILENAME ($WIDTHx$HEIGHT) $ZOOM% [$IMAGE_NUMBER/$IMAGE_COUNT]";
gdouble option_slideshow_interval = 5.;
#ifndef CONFIGURED_WITHOUT_INFO_TEXT
gboolean option_hide_info_box = FALSE;
#endif
gboolean option_start_fullscreen = FALSE;
gdouble option_initial_scale = 1.0;
gboolean option_start_with_slideshow_mode = FALSE;
gboolean option_sort = FALSE;
enum { NAME, MTIME } option_sort_key = NAME;
gboolean option_shuffle = FALSE;
gboolean option_transparent_background = FALSE;
gboolean option_watch_directories = FALSE;
gboolean option_wait_for_images_to_appear = FALSE;
gboolean option_fading = FALSE;
gboolean option_lazy_load = FALSE;
gboolean option_allow_empty_window = FALSE;
gboolean option_lowmem = FALSE;
gboolean option_addl_from_stdin = FALSE;
gboolean option_recreate_window = FALSE;
gboolean option_enforce_window_aspect_ratio = FALSE;
gboolean cursor_visible = TRUE;
gboolean cursor_auto_hide_mode_enabled = FALSE;
gboolean option_negate = FALSE;
int cursor_auto_hide_timer_id = 0;
#ifndef CONFIGURED_WITHOUT_ACTIONS
gboolean option_actions_from_stdin = FALSE;
gboolean option_status_output = FALSE;
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE
gboolean option_auto_montage_mode = FALSE;
#endif
#else
static const gboolean option_actions_from_stdin = FALSE;
#endif
double option_fading_duration = .5;
double option_keyboard_timeout = .5;
gint option_max_depth = -1;
gboolean option_browse = FALSE;
enum { QUIT, WAIT, WAITPRINT, WRAP, WRAP_NO_RESHUFFLE } option_end_of_files_action = WRAP;
enum { ON, OFF, CHANGES_ONLY } option_watch_files = ON;
gchar *option_disable_backends;
double fading_current_alpha_stage = 0;
gint64 fading_initial_time;
#ifdef CONFIGURED_WITHOUT_ACTIONS
const
#endif
enum { AUTO, FAST, GOOD, BEST } option_interpolation_quality = AUTO;
enum { CHECKERBOARD, BLACK, WHITE } option_background_pattern = CHECKERBOARD;
gboolean options_background_pattern_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
#ifndef CONFIGURED_WITHOUT_ACTIONS
gboolean options_bind_key_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
char *key_binding_sequence_to_string(guint key_binding_value, gchar *prefix);
gboolean help_show_key_bindings(const gchar *option_name, const gchar *value, gpointer data, GError **error);
#endif
gboolean help_show_version(const gchar *option_name, const gchar *value, gpointer data, GError **error);
gboolean option_window_position_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
gboolean option_thumbnail_size_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
gboolean option_thumbnail_preload_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
gboolean option_scale_level_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
gboolean option_thumbnail_persistence_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
gboolean option_end_of_files_action_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
gboolean option_watch_files_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
gboolean option_sort_key_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
gboolean option_action_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
#if !defined(CONFIGURED_WITHOUT_INFO_TEXT) || !defined(CONFIGURED_WITHOUT_MONTAGE_MODE)
gboolean option_box_colors_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error);
#endif
void load_images_handle_parameter(char *param, load_images_state_t state, gint depth, GSList *recursion_folder_stack);
struct {
gint x;
gint y;
} option_window_position = { -2, -2 };
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE /* option --without-montage: Do not include support for a thumbnail overview */
struct {
gboolean enabled;
thumbnail_persist_mode_t persist;
gchar *special_thumbnail_directory;
gint width;
gint height;
gint auto_generate_for_adjacents;
} option_thumbnails = { 0, THUMBNAILS_PERSIST_RO, NULL, 128, 128, -1 };
struct {
int scroll_y;
BOSNode *selected_node;
gboolean show_binding_overlays;
} montage_window_control;
enum { MONTAGE_MODE_WRAP_OFF, MONTAGE_MODE_WRAP_ROWS, MONTAGE_MODE_WRAP_FULL, _MONTAGE_MODE_WRAP_SENTINEL } option_montage_mode_wrap_mode = MONTAGE_MODE_WRAP_ROWS;
#endif
struct Point {
int x;
int y;
};
// The standard forbids casting object pointers to function pointers, but
// GLib requires it in its GOptionEntry structure.
PQIV_DISABLE_PEDANTIC
// Hint: Only types G_OPTION_ARG_NONE, G_OPTION_ARG_STRING, G_OPTION_ARG_DOUBLE/INTEGER and G_OPTION_ARG_CALLBACK are
// implemented for option parsing.
GOptionEntry options[] = {
{ "transparent-background", 'c', 0, G_OPTION_ARG_NONE, &option_transparent_background, "Borderless transparent window", NULL },
{ "slideshow-interval", 'd', 0, G_OPTION_ARG_DOUBLE, &option_slideshow_interval, "Set slideshow interval", "n" },
{ "fullscreen", 'f', 0, G_OPTION_ARG_NONE, &option_start_fullscreen, "Start in fullscreen mode", NULL },
{ "fade", 'F', 0, G_OPTION_ARG_NONE, (gpointer)&option_fading, "Fade between images", NULL },
#ifndef CONFIGURED_WITHOUT_INFO_TEXT
{ "hide-info-box", 'i', 0, G_OPTION_ARG_NONE, &option_hide_info_box, "Initially hide the info box", NULL },
#endif
{ "lazy-load", 'l', 0, G_OPTION_ARG_NONE, &option_lazy_load, "Display the main window as soon as one image is loaded", NULL },
{ "sort", 'n', 0, G_OPTION_ARG_NONE, &option_sort, "Sort files in natural order", NULL },
{ "window-position", 'P', 0, G_OPTION_ARG_CALLBACK, &option_window_position_callback, "Set initial window position (`x,y' or `off' to not position the window at all)", "POSITION" },
{ "additional-from-stdin", 'r', 0, G_OPTION_ARG_NONE, &option_addl_from_stdin, "Read additional filenames/folders from stdin", NULL },
{ "slideshow", 's', 0, G_OPTION_ARG_NONE, &option_start_with_slideshow_mode, "Activate slideshow mode", NULL },
{ "scale-images-up", 't', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, &option_scale_level_callback, "Scale images up to fill the whole screen", NULL },
{ "window-title", 'T', 0, G_OPTION_ARG_STRING, &option_window_title, "Set the title of the window. See manpage for available variables.", "TITLE" },
{ "zoom-level", 'z', 0, G_OPTION_ARG_DOUBLE, &option_initial_scale, "Set initial zoom level (1.0 is 100%)", "FLOAT" },
#ifndef CONFIGURED_WITHOUT_EXTERNAL_COMMANDS
{ "command-1", '1', 0, G_OPTION_ARG_STRING, &external_image_filter_commands[0], "Bind the external COMMAND to key 1. See manpage for extended usage (commands starting with `>' or `|'). Use 2..9 for further commands.", "COMMAND" },
{ "command-2", '2', G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_STRING, &external_image_filter_commands[1], NULL, NULL },
{ "command-3", '3', G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_STRING, &external_image_filter_commands[2], NULL, NULL },
{ "command-4", '4', G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_STRING, &external_image_filter_commands[3], NULL, NULL },
{ "command-5", '5', G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_STRING, &external_image_filter_commands[4], NULL, NULL },
{ "command-6", '6', G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_STRING, &external_image_filter_commands[5], NULL, NULL },
{ "command-7", '7', G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_STRING, &external_image_filter_commands[6], NULL, NULL },
{ "command-8", '8', G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_STRING, &external_image_filter_commands[7], NULL, NULL },
{ "command-9", '9', G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_STRING, &external_image_filter_commands[8], NULL, NULL },
#endif
#ifndef CONFIGURED_WITHOUT_ACTIONS
{ "action", 0, 0, G_OPTION_ARG_CALLBACK, &option_action_callback, "Perform a given action", "ACTION" },
{ "actions-from-stdin", 0, 0, G_OPTION_ARG_NONE, &option_actions_from_stdin, "Read actions from stdin", NULL },
{ "allow-empty-window", 0, 0, G_OPTION_ARG_NONE, &option_allow_empty_window, "Show pqiv/do not quit even though no files are loaded", NULL },
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE
{ "auto-montage-mode", 0, 0, G_OPTION_ARG_NONE, &option_auto_montage_mode, "Automatically enter montage mode if multiple images are opened", NULL },
#endif
#endif
{ "background-pattern", 0, 0, G_OPTION_ARG_CALLBACK, &options_background_pattern_callback, "Set the background pattern to use for transparent images", "PATTERN" },
#ifndef CONFIGURED_WITHOUT_ACTIONS
{ "bind-key", 0, 0, G_OPTION_ARG_CALLBACK, &options_bind_key_callback, "Rebind a key to another action, see manpage and --show-bindings output for details.", "KEY BINDING" },
#endif
#if !defined(CONFIGURED_WITHOUT_INFO_TEXT) || !defined(CONFIGURED_WITHOUT_MONTAGE_MODE)
{ "box-colors", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer)&option_box_colors_callback, "Set box colors", "TEXT:BACKGROUND" },
#endif
{ "browse", 0, 0, G_OPTION_ARG_NONE, &option_browse, "For each command line argument, additionally load all images from the image's directory", NULL },
{ "disable-backends", 0, 0, G_OPTION_ARG_STRING, &option_disable_backends, "Disable the given backends", "BACKENDS" },
{ "disable-scaling", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, &option_scale_level_callback, "Disable scaling of images", NULL },
{ "end-of-files-action", 0, 0, G_OPTION_ARG_CALLBACK, &option_end_of_files_action_callback, "Action to take after all images have been viewed. (`quit', `wait', `wrap', `wrap-no-reshuffle')", "ACTION" },
{ "enforce-window-aspect-ratio", 0, 0, G_OPTION_ARG_NONE, &option_enforce_window_aspect_ratio, "Fix the aspect ratio of the window to match the current image's", NULL },
{ "fade-duration", 0, 0, G_OPTION_ARG_DOUBLE, &option_fading_duration, "Adjust fades' duration", "SECONDS" },
{ "low-memory", 0, 0, G_OPTION_ARG_NONE, &option_lowmem, "Try to keep memory usage to a minimum", NULL },
{ "max-depth", 0, 0, G_OPTION_ARG_INT, &option_max_depth, "Descend at most LEVELS levels of directories below the command line arguments", "LEVELS" },
{ "negate", 0, 0, G_OPTION_ARG_NONE, &option_negate, "Negate images: show negatives", NULL },
{ "recreate-window", 0, 0, G_OPTION_ARG_NONE, &option_recreate_window, "Create a new window instead of resizing the old one", NULL },
{ "scale-mode-screen-fraction", 0, 0, G_OPTION_ARG_DOUBLE, &option_scale_screen_fraction, "Screen fraction to use for auto-scaling", "FLOAT" },
{ "shuffle", 0, 0, G_OPTION_ARG_NONE, &option_shuffle, "Shuffle files", NULL },
#ifndef CONFIGURED_WITHOUT_ACTIONS
{ "show-bindings", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, &help_show_key_bindings, "Display the keyboard and mouse bindings and exit", NULL },
#endif
{ "sort-key", 0, 0, G_OPTION_ARG_CALLBACK, &option_sort_key_callback, "Key to use for sorting", "PROPERTY" },
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE
{ "thumbnail-size", 0, 0, G_OPTION_ARG_CALLBACK, &option_thumbnail_size_callback, "Set the dimensions of thumbnails in montage mode", "WIDTHxHEIGHT" },
{ "thumbnail-preload", 0, 0, G_OPTION_ARG_CALLBACK, &option_thumbnail_preload_callback, "Preload the adjacent COUNT thumbnails", "COUNT" },
{ "thumbnail-persistence", 0, 0, G_OPTION_ARG_CALLBACK, &option_thumbnail_persistence_callback, "Persist thumbnails to disk, to DIRECTORY.", "DIRECTORY" },
#endif
{ "wait-for-images-to-appear", 0, 0, G_OPTION_ARG_NONE, &option_wait_for_images_to_appear, "If no images are found, wait until at least one appears", NULL },
{ "watch-directories", 0, 0, G_OPTION_ARG_NONE, &option_watch_directories, "Watch directories for new files", NULL },
{ "watch-files", 0, 0, G_OPTION_ARG_CALLBACK, &option_watch_files_callback, "Watch files for changes on disk (`on`, `off', `changes-only', i.e. do nothing on deletetion)", "VALUE" },
{ "version", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, &help_show_version, "Show version information and quit", NULL },
{ NULL, 0, 0, 0, NULL, NULL, NULL }
};
PQIV_ENABLE_PEDANTIC
/* Key bindings & actions {{{ */
#define KEY_BINDINGS_KEY_TOKEN_BEGIN_SYMBOL '<'
#define KEY_BINDINGS_KEY_TOKEN_END_SYMBOL '>'
#define KEY_BINDINGS_COMMANDS_BEGIN_SYMBOL '{'
#define KEY_BINDINGS_COMMANDS_END_SYMBOL '}'
#define KEY_BINDINGS_COMMAND_SEPARATOR_SYMBOL ';'
#define KEY_BINDINGS_COMMAND_PARAMETER_BEGIN_SYMBOL '('
#define KEY_BINDINGS_COMMAND_PARAMETER_END_SYMBOL ')'
#define KEY_BINDINGS_CONTEXT_SWITCH_SYMBOL '@'
#define KEY_BINDING_STATE_BITS 4
#define KEY_BINDING_VALUE(is_mouse, state, keycode) ((guint)((((unsigned)is_mouse & 1u) << 31) | (((state & ((1u << KEY_BINDING_STATE_BITS) - 1)) << (31 - KEY_BINDING_STATE_BITS)) | (keycode & ((1u << (31 - KEY_BINDING_STATE_BITS)) - 1u)))))
#define KEY_BINDING_CONTEXTS_COUNT 2
#ifndef CONFIGURED_WITHOUT_ACTIONS
const char * const key_binding_context_names[] = {
"DEFAULT",
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE
"MONTAGE",
#else
"",
#endif
};
#endif
enum context_t { DEFAULT, MONTAGE };
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE
static char montage_mode_default_keys[] = "asdfghjkl";
#endif
static const struct default_key_bindings_struct {
enum context_t context;
guint key_binding_value;
pqiv_action_t action;
pqiv_action_parameter_t parameter;
} default_key_bindings[] = {
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Up ), ACTION_SHIFT_Y , { 10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Up ), ACTION_SHIFT_Y , { 10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_Up ), ACTION_SHIFT_Y , { 50 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_KP_Up ), ACTION_SHIFT_Y , { 50 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Down ), ACTION_SHIFT_Y , { -10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Down ), ACTION_SHIFT_Y , { -10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_Down ), ACTION_SHIFT_Y , { -50 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_KP_Down ), ACTION_SHIFT_Y , { -50 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Left ), ACTION_SHIFT_X , { 10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Left ), ACTION_SHIFT_X , { 10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_Left ), ACTION_SHIFT_X , { 50 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_KP_Left ), ACTION_SHIFT_X , { 50 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Right ), ACTION_SHIFT_X , { -10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Right ), ACTION_SHIFT_X , { -10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_Right ), ACTION_SHIFT_X , { -50 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_KP_Right ), ACTION_SHIFT_X , { -50 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_plus ), ACTION_SET_SLIDESHOW_INTERVAL_RELATIVE , { .pdouble = 1. }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_KP_Add ), ACTION_SET_SLIDESHOW_INTERVAL_RELATIVE , { .pdouble = 1. }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_MOD1_MASK , GDK_KEY_KP_Add ), ACTION_ANIMATION_SET_SPEED_RELATIVE , { .pdouble = 1.1 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_MOD1_MASK , GDK_KEY_plus ), ACTION_ANIMATION_SET_SPEED_RELATIVE , { .pdouble = 1.1 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_plus ), ACTION_SET_SCALE_LEVEL_RELATIVE , { .pdouble = 1.1 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Add ), ACTION_SET_SCALE_LEVEL_RELATIVE , { .pdouble = 1.1 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_minus ), ACTION_SET_SLIDESHOW_INTERVAL_RELATIVE , { .pdouble = -1. }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_KP_Subtract ), ACTION_SET_SLIDESHOW_INTERVAL_RELATIVE , { .pdouble = -1. }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_MOD1_MASK , GDK_KEY_minus ), ACTION_ANIMATION_SET_SPEED_RELATIVE , { .pdouble = 0.9 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_MOD1_MASK , GDK_KEY_KP_Subtract ), ACTION_ANIMATION_SET_SPEED_RELATIVE , { .pdouble = 0.9 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_minus ), ACTION_SET_SCALE_LEVEL_RELATIVE , { .pdouble = 0.9 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Subtract ), ACTION_SET_SCALE_LEVEL_RELATIVE , { .pdouble = 0.9 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_t ), ACTION_TOGGLE_SCALE_MODE , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_t ), ACTION_TOGGLE_SCALE_MODE , { 4 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_MOD1_MASK , GDK_KEY_t ), ACTION_TOGGLE_SCALE_MODE , { 5 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_r ), ACTION_TOGGLE_SHUFFLE_MODE , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_r ), ACTION_RELOAD , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_p ), ACTION_GOTO_EARLIER_FILE , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_0 ), ACTION_RESET_SCALE_LEVEL , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_f ), ACTION_TOGGLE_FULLSCREEN , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_h ), ACTION_FLIP_HORIZONTALLY , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_v ), ACTION_FLIP_VERTICALLY , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_l ), ACTION_ROTATE_LEFT , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_k ), ACTION_ROTATE_RIGHT , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_i ), ACTION_TOGGLE_INFO_BOX , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_j ), ACTION_JUMP_DIALOG , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_m ), ACTION_MONTAGE_MODE_ENTER , { 0 }},
#ifndef CONFIGURED_WITHOUT_EXTERNAL_COMMANDS
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_o ), ACTION_TOGGLE_MARK , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_o ), ACTION_CLEAR_MARKS , { 0 }},
#endif
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_s ), ACTION_TOGGLE_SLIDESHOW , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_b ), ACTION_TOGGLE_BACKGROUND_PATTERN , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_n ), ACTION_TOGGLE_NEGATE_MODE , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_a ), ACTION_HARDLINK_CURRENT_IMAGE , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_period ), ACTION_ANIMATION_STEP , { 1 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_period ), ACTION_ANIMATION_CONTINUE , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_BackSpace ), ACTION_GOTO_LOGICAL_DIRECTORY_RELATIVE , { -1 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_BackSpace ), ACTION_GOTO_FILE_RELATIVE , { -1 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_space ), ACTION_GOTO_LOGICAL_DIRECTORY_RELATIVE , { 1 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_space ), ACTION_GOTO_FILE_RELATIVE , { 1 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_Page_Up ), ACTION_GOTO_FILE_RELATIVE , { 10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_KP_Page_Up ), ACTION_GOTO_FILE_RELATIVE , { 10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Page_Down ), ACTION_GOTO_FILE_RELATIVE , { -10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Page_Up ), ACTION_GOTO_FILE_RELATIVE , { 10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Page_Up ), ACTION_GOTO_FILE_RELATIVE , { 10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Page_Down ), ACTION_GOTO_FILE_RELATIVE , { -10 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_q ), ACTION_QUIT , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Escape ), ACTION_QUIT , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_1 ), ACTION_NUMERIC_COMMAND , { 1 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_2 ), ACTION_NUMERIC_COMMAND , { 2 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_3 ), ACTION_NUMERIC_COMMAND , { 3 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_4 ), ACTION_NUMERIC_COMMAND , { 4 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_5 ), ACTION_NUMERIC_COMMAND , { 5 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_6 ), ACTION_NUMERIC_COMMAND , { 6 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_7 ), ACTION_NUMERIC_COMMAND , { 7 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_8 ), ACTION_NUMERIC_COMMAND , { 8 }},
{ DEFAULT, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_9 ), ACTION_NUMERIC_COMMAND , { 9 }},
{ DEFAULT, KEY_BINDING_VALUE(1 , 0 , GDK_BUTTON_PRIMARY ), ACTION_GOTO_FILE_RELATIVE , { -1 }},
{ DEFAULT, KEY_BINDING_VALUE(1 , 0 , GDK_BUTTON_MIDDLE ), ACTION_QUIT , { 0 }},
{ DEFAULT, KEY_BINDING_VALUE(1 , 0 , GDK_BUTTON_SECONDARY ), ACTION_GOTO_FILE_RELATIVE , { 1 }},
{ DEFAULT, KEY_BINDING_VALUE(1 , 0 , (GDK_SCROLL_UP+1) << 2 ), ACTION_GOTO_FILE_RELATIVE , { 1 }},
{ DEFAULT, KEY_BINDING_VALUE(1 , 0 , (GDK_SCROLL_DOWN+1) << 2 ), ACTION_GOTO_FILE_RELATIVE , { -1 }},
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Down ), ACTION_MONTAGE_MODE_SHIFT_Y , { 1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Up ), ACTION_MONTAGE_MODE_SHIFT_Y , { -1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Left ), ACTION_MONTAGE_MODE_SHIFT_X , { -1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Right ), ACTION_MONTAGE_MODE_SHIFT_X , { 1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Down ), ACTION_MONTAGE_MODE_SHIFT_Y , { 1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Up ), ACTION_MONTAGE_MODE_SHIFT_Y , { -1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Left ), ACTION_MONTAGE_MODE_SHIFT_X , { -1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Right ), ACTION_MONTAGE_MODE_SHIFT_X , { 1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Page_Down ), ACTION_MONTAGE_MODE_SHIFT_Y_PG , { 1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Page_Up ), ACTION_MONTAGE_MODE_SHIFT_Y_PG , { -1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Page_Up ), ACTION_MONTAGE_MODE_SHIFT_Y_PG , { -1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_KP_Page_Down ), ACTION_MONTAGE_MODE_SHIFT_Y_PG , { 1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Home ), ACTION_GOTO_FILE_BYINDEX , { 0 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_End ), ACTION_GOTO_FILE_BYINDEX , { -1 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Return ), ACTION_MONTAGE_MODE_RETURN_PROCEED , { 0 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_Escape ), ACTION_MONTAGE_MODE_RETURN_CANCEL , { 0 }},
#ifndef CONFIGURED_WITHOUT_EXTERNAL_COMMANDS
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_o ), ACTION_TOGGLE_MARK , { 0 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , GDK_CONTROL_MASK , GDK_KEY_o ), ACTION_CLEAR_MARKS , { 0 }},
#endif
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_m ), ACTION_MONTAGE_MODE_RETURN_CANCEL , { 0 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_f ), ACTION_TOGGLE_FULLSCREEN , { 0 }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_g ), ACTION_MONTAGE_MODE_FOLLOW , { .pcharptr = (char*)montage_mode_default_keys }},
{ MONTAGE, KEY_BINDING_VALUE(0 , 0 , GDK_KEY_q ), ACTION_QUIT , { 0 }},
{ MONTAGE, KEY_BINDING_VALUE(1 , 0 , (GDK_SCROLL_UP+1) << 2 ), ACTION_MONTAGE_MODE_SHIFT_Y_ROWS , { 1 }},
{ MONTAGE, KEY_BINDING_VALUE(1 , 0 , (GDK_SCROLL_DOWN+1) << 2 ), ACTION_MONTAGE_MODE_SHIFT_Y_ROWS , { -1 }},
#endif
{ DEFAULT, 0, 0, { 0 } }
};
enum context_t active_key_binding_context = DEFAULT;
enum context_t application_mode = DEFAULT;
#ifndef CONFIGURED_WITHOUT_ACTIONS
typedef struct key_binding key_binding_t;
struct key_binding {
pqiv_action_t action;
pqiv_action_parameter_t parameter;
struct key_binding *next_action; // For assinging multiple actions to one key
GHashTable *next_key_bindings; // For key sequences
};
GHashTable *key_bindings[KEY_BINDING_CONTEXTS_COUNT];
struct {
key_binding_t *key_binding;
BOSNode *associated_image;
gint timeout_id;
} active_key_binding = { NULL, NULL, -1 };
GQueue action_queue = G_QUEUE_INIT;
gint action_queue_idle_id = -1;
void help_show_single_action(key_binding_t *current_action);
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE
key_binding_t follow_mode_key_binding = { ACTION_MONTAGE_MODE_FOLLOW_PROCEED, { .p2short = { -1, -1 } }, NULL, NULL };
#endif
#endif
void UNUSED_FUNCTION action_done();
const struct pqiv_action_descriptor {
const char *name;
enum { PARAMETER_INT, PARAMETER_DOUBLE, PARAMETER_CHARPTR, PARAMETER_2SHORT, PARAMETER_NONE } parameter_type;
} pqiv_action_descriptors[] = {
{ "nop", PARAMETER_NONE },
{ "shift_y", PARAMETER_INT },
{ "shift_x", PARAMETER_INT },
{ "set_slideshow_interval_relative", PARAMETER_DOUBLE },
{ "set_slideshow_interval_absolute", PARAMETER_DOUBLE },
{ "set_scale_level_relative", PARAMETER_DOUBLE },
{ "set_scale_level_absolute", PARAMETER_DOUBLE },
{ "toggle_scale_mode", PARAMETER_INT },
{ "set_scale_mode_screen_fraction", PARAMETER_DOUBLE },
{ "toggle_shuffle_mode", PARAMETER_INT },
{ "reload", PARAMETER_NONE },
{ "reset_scale_level", PARAMETER_NONE },
{ "toggle_fullscreen", PARAMETER_INT },
{ "flip_horizontally", PARAMETER_NONE },
{ "flip_vertically", PARAMETER_NONE },
{ "rotate_left", PARAMETER_NONE },
{ "rotate_right", PARAMETER_NONE },
{ "toggle_info_box", PARAMETER_NONE },
{ "jump_dialog", PARAMETER_NONE },
{ "toggle_slideshow", PARAMETER_NONE },
{ "hardlink_current_image", PARAMETER_NONE },
{ "goto_directory_relative", PARAMETER_INT },
{ "goto_logical_directory_relative", PARAMETER_INT },
{ "goto_file_relative", PARAMETER_INT },
{ "quit", PARAMETER_NONE },
{ "numeric_command", PARAMETER_INT },
{ "command", PARAMETER_CHARPTR },
{ "add_file", PARAMETER_CHARPTR },
{ "goto_file_byindex", PARAMETER_INT },
{ "goto_file_byname", PARAMETER_CHARPTR },
{ "remove_file_byindex", PARAMETER_INT },
{ "remove_file_byname", PARAMETER_CHARPTR },
{ "output_file_list", PARAMETER_NONE },
{ "output_string", PARAMETER_CHARPTR },
{ "set_cursor_visibility", PARAMETER_INT },
{ "set_status_output", PARAMETER_INT },
{ "set_scale_mode_fit_px", PARAMETER_2SHORT },
{ "set_shift_x", PARAMETER_INT },
{ "set_shift_y", PARAMETER_INT },
{ "bind_key", PARAMETER_CHARPTR },
{ "send_keys", PARAMETER_CHARPTR },
{ "set_shift_align_corner", PARAMETER_CHARPTR },
{ "set_interpolation_quality", PARAMETER_INT },
{ "animation_step", PARAMETER_INT },
{ "animation_continue", PARAMETER_NONE },
{ "animation_set_speed_absolute", PARAMETER_DOUBLE },
{ "animation_set_speed_relative", PARAMETER_DOUBLE },
{ "goto_earlier_file", PARAMETER_NONE },
{ "set_cursor_auto_hide", PARAMETER_INT },
{ "set_fade_duration", PARAMETER_DOUBLE },
{ "set_keyboard_timeout", PARAMETER_DOUBLE },
{ "set_thumbnail_size", PARAMETER_2SHORT },
{ "set_thumbnail_preload", PARAMETER_INT },
{ "montage_mode_enter", PARAMETER_NONE },
{ "montage_mode_shift_x", PARAMETER_INT },
{ "montage_mode_shift_y", PARAMETER_INT },
{ "montage_mode_set_shift_x", PARAMETER_INT },
{ "montage_mode_set_shift_y", PARAMETER_INT },
{ "montage_mode_set_wrap_mode", PARAMETER_INT },
{ "montage_mode_shift_y_pg", PARAMETER_INT },
{ "montage_mode_shift_y_rows", PARAMETER_INT },
{ "montage_mode_show_binding_overlays", PARAMETER_INT },
{ "montage_mode_follow", PARAMETER_CHARPTR },
{ "montage_mode_follow_proceed", PARAMETER_2SHORT },
{ "montage_mode_return_proceed", PARAMETER_NONE },
{ "montage_mode_return_cancel", PARAMETER_NONE },
{ "move_window", PARAMETER_2SHORT },
{ "toggle_background_pattern", PARAMETER_INT },
{ "toggle_negate_mode", PARAMETER_INT },
{ "toggle_mark", PARAMETER_NONE },
{ "clear_marks", PARAMETER_NONE },
{ NULL, 0 }
};
/* }}} */
typedef struct {
gint depth;
GTree *outstanding_files;
GSList *recursion_folder_stack;
gchar *base_param;
} directory_watch_options_t;
GHashTable *active_directory_watches;
void set_scale_level_to_fit();
void set_scale_level_for_screen();
#ifndef CONFIGURED_WITHOUT_INFO_TEXT
void info_text_queue_redraw();
void update_info_text(const char *);
#define UPDATE_INFO_TEXT(fmt, ...) { \
gchar *_info_text = g_strdup_printf(fmt, __VA_ARGS__);\
update_info_text(_info_text); \
g_free(_info_text); \
}
#else
#define info_text_queue_redraw(...)
#define update_info_text(...)
#define UPDATE_INFO_TEXT(fmt, ...)
#endif
void queue_draw();
gboolean main_window_center();
void window_screen_changed_callback(GtkWidget *widget, GdkScreen *previous_screen, gpointer user_data);
typedef int image_loader_purpose_t;
gboolean test_and_invalidate_thumbnail(file_t *file);
gboolean image_loader_load_single(BOSNode *node, gboolean called_from_main);
gboolean fading_timeout_callback(gpointer user_data);
void queue_image_load(BOSNode *);
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE
void queue_thumbnail_load(BOSNode *);
#endif
void unload_image(BOSNode *);
void remove_image(BOSNode *);
gboolean initialize_gui_callback(gpointer);
gboolean initialize_image_loader();
void window_hide_cursor();
void window_show_cursor();
void preload_adjacent_images();
void window_center_mouse();
double calculate_scale_level_to_fit(int image_width, int image_height, int window_width, int window_height);
gboolean main_window_calculate_ideal_size(int *new_window_width, int *new_window_height);
void calculate_current_image_transformed_size(int *image_width, int *image_height);
double calculate_auto_scale_level_for_screen(int image_width, int image_height);
cairo_surface_t *get_scaled_image_surface_for_current_image();
gboolean window_state_into_fullscreen_actions(gpointer user_data);
gboolean window_state_out_of_fullscreen_actions(gpointer user_data);
gboolean window_draw_callback(GtkWidget *widget, cairo_t *cr_arg, gpointer user_data);
void window_prerender_background_pixmap(int window_width, int window_height, double scale_level, gboolean fullscreen);
void window_clear_background_pixmap();
gboolean window_show_background_pixmap_cb(gpointer user_data);
BOSNode *image_pointer_by_name(gchar *display_name);
BOSNode *relative_image_pointer(ptrdiff_t movement);
void file_tree_free_helper(BOSNode *node);
gint relative_image_pointer_shuffle_list_cmp(shuffled_image_ref_t *ref, BOSNode *node);
void relative_image_pointer_shuffle_list_unref_fn(shuffled_image_ref_t *ref);
gboolean slideshow_timeout_callback(gpointer user_data);
gboolean absolute_image_movement(BOSNode *ref);
#ifndef CONFIGURED_WITHOUT_ACTIONS
void parse_key_bindings(const gchar *bindings);
gboolean read_commands_thread_helper(gpointer command);
#endif
void recreate_window();
static void status_output();
void handle_input_event(guint key_binding_value);
void draw_current_image_to_context(cairo_t *cr);
gboolean window_auto_hide_cursor_callback(gpointer user_data);
#ifndef CONFIGURED_WITHOUT_ACTIONS
gboolean handle_input_event_timeout_callback(gpointer user_data);
void queue_action(pqiv_action_t action_id, pqiv_action_parameter_t parameter);
#endif
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE
gboolean montage_window_get_move_cursor_target(int, int, int, int*, int*, int*, BOSNode **);
void montage_window_move_cursor(int, int, int);
#endif
#ifndef CONFIGURED_WITHOUT_EXTERNAL_COMMANDS
void toggle_mark();
void clear_marks();
GString *get_all_marked();
#endif
// }}}
/* Helper functions {{{ */
gboolean strv_contains(const gchar * const *strv, const gchar *str) {
#if GLIB_CHECK_VERSION(2, 44, 0)
return g_strv_contains(strv, str);
#else
while(*strv) {
if(g_strcmp0(*strv, str) == 0) {
return TRUE;
}
strv++;
}
return FALSE;
#endif
}
/* }}} */
/* Command line handling, creation of the image list {{{ */
gboolean options_background_pattern_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error) {/*{{{*/
if(strcasecmp(value, "checkerboard") == 0) {
option_background_pattern = CHECKERBOARD;
}
else if(strcasecmp(value, "black") == 0) {
option_background_pattern = BLACK;
}
else if(strcasecmp(value, "white") == 0) {
option_background_pattern = WHITE;
}
else {
g_set_error(error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, "Unexpected argument value for the --background-pattern option. Allowed values are BLACK, WHITE and CHECKERBOARD.");
return FALSE;
}
return TRUE;
}/*}}}*/
#ifndef CONFIGURED_WITHOUT_ACTIONS /* option --without-actions: Do not include support for configurable key/mouse bindings and actions */
gboolean options_bind_key_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error) {/*{{{*/
// Format for value:
// {key sequence description, special keys as <name>} { {action}({parameter});[...] } [...]
//
// Special names are: <Shift>, <Control>, <Alt> (GDK_MOD1_MASK), <Mouse-%d> and any other must be fed to gdk_keyval_from_name
// String parameters must be given in quotes
// To set an error:
// g_set_error(error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, "The argument to the alias option must have a multiple of two characters: Every odd one is mapped to the even one following it.");
//
parse_key_bindings(value);
return TRUE;
}/*}}}*/
#endif
#ifndef CONFIGURED_WITHOUT_MONTAGE_MODE
gboolean option_thumbnail_size_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error) {/*{{{*/
gchar *second;
option_thumbnails.width = g_ascii_strtoll(value, &second, 10);
if(second != value && (*second == 'x' || *second == ',')) {
option_thumbnails.height = g_ascii_strtoll(second + 1, &second, 10);
if(*second == 0) {
return TRUE;
}
}
g_set_error(error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, "Unexpected argument value for the --thumbnail-size option. Format must be e.g. `320x240'.");
return FALSE;
}/*}}}*/
gboolean option_thumbnail_preload_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error) {/*{{{*/
option_thumbnails.enabled = 1;
option_thumbnails.auto_generate_for_adjacents = g_ascii_strtoll(value, NULL, 10);
if(errno == EINVAL || errno == ERANGE) {
g_set_error(error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, "Unexpected argument value for the --thumbnail-preload option.");
return FALSE;
}
return TRUE;
}/*}}}*/
gboolean option_thumbnail_persistence_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error) {/*{{{*/
if(option_thumbnails.special_thumbnail_directory != NULL) {
g_free(option_thumbnails.special_thumbnail_directory);
option_thumbnails.special_thumbnail_directory = NULL;
}
if(value == NULL || !*value || strcasecmp(value, "yes") == 0 || strcasecmp(value, "true") == 0 || strcasecmp(value, "1") == 0 || strcasecmp(value, "on") == 0) {
option_thumbnails.persist = THUMBNAILS_PERSIST_ON;
}
else if(strcasecmp(value, "read-only") == 0) {
option_thumbnails.persist = THUMBNAILS_PERSIST_RO;
}
else if(strcasecmp(value, "standard") == 0) {
option_thumbnails.persist = THUMBNAILS_PERSIST_STANDARD;
}
else if(strcasecmp(value, "no") == 0 || strcasecmp(value, "false") == 0 || strcasecmp(value, "1") == 0 || strcasecmp(value, "off") == 0) {
option_thumbnails.persist = THUMBNAILS_PERSIST_OFF;
}
else if(strcasecmp(value, "local") == 0) {
option_thumbnails.persist = THUMBNAILS_PERSIST_LOCAL;
}
else if(value[0] == '/') {
option_thumbnails.persist = THUMBNAILS_PERSIST_ON;
option_thumbnails.special_thumbnail_directory = g_strdup(value);
}
else {
g_set_error(error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, "Unexpected argument value for the --thumbnail-persistence option.");
return FALSE;
}
return TRUE;
}/*}}}*/
#endif
gboolean option_window_position_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error) {/*{{{*/
if(strcmp(value, "off") == 0) {
option_window_position.x = option_window_position.y = -1;
return TRUE;
}
gchar *second;
option_window_position.x = g_ascii_strtoll(value, &second, 10);
if(second != value && *second == ',') {
option_window_position.y = g_ascii_strtoll(second + 1, &second, 10);
if(*second == 0) {
return TRUE;
}
}
g_set_error(error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, "Unexpected argument value for the -P option. Allowed formats are: `x,y' and `off'.");
return FALSE;
}/*}}}*/
gboolean option_scale_level_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error) {/*{{{*/
if(g_strcmp0(option_name, "-t") == 0 || g_strcmp0(option_name, "--scale-images-up") == 0) {
option_scale = AUTO_SCALEUP;
}
else {
option_scale = NO_SCALING;
}
return TRUE;
}/*}}}*/
gboolean option_watch_files_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error) {/*{{{*/
if(strcmp(value, "off") == 0) {
option_watch_files = OFF;
}
else if(strcmp(value, "on") == 0) {
option_watch_files = ON;
}
else if(strcmp(value, "changes-only") == 0) {
option_watch_files = CHANGES_ONLY;
}
else {
g_set_error(error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, "Unexpected argument value for the --watch-files option. Allowed values are: on, off and changes-only.");
return FALSE;
}
return TRUE;
}/*}}}*/
gboolean option_end_of_files_action_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error) {/*{{{*/
if(strcmp(value, "quit") == 0) {
option_end_of_files_action = QUIT;
}
else if(strcmp(value, "wait") == 0) {
option_end_of_files_action = WAIT;
}
else if(strcmp(value, "waitprint") == 0) {
option_end_of_files_action = WAITPRINT;
}
else if(strcmp(value, "wrap") == 0) {
option_end_of_files_action = WRAP;
}
else if(strcmp(value, "wrap-no-reshuffle") == 0) {
option_end_of_files_action = WRAP_NO_RESHUFFLE;
}
else {
g_set_error(error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, "Unexpected argument value for the --end-of-files-action option. Allowed values are: quit, wait, wrap (default) and wrap-no-reshuffle.");
return FALSE;
}
return TRUE;
}/*}}}*/
#if !defined(CONFIGURED_WITHOUT_INFO_TEXT) || !defined(CONFIGURED_WITHOUT_MONTAGE_MODE)
gboolean option_box_colors_callback(const gchar *option_name, const gchar *value, gpointer data, GError **error) {/*{{{*/
// Parse manually rather than with sscanf to have the flexibility to use
// hex notation without doing black magic
unsigned char pos;
for(pos=0; pos < 6 && value && *value; pos++) {
while(*value == ' ') {
value++;
}
if(pos % 3 == 0 && *value == '#') {
value++;
unsigned char ipos = pos + 3;
for(; pos<ipos && value; pos++) {
unsigned char mchar = 0;
for(int i=0; i<2; i++) {
mchar = mchar << 4;
if(!*value) {
break;
}
if(*value >= 'a' && *value <= 'f') {