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/* See LICENSE file for copyright and license details. */
#ifndef SCROLL_AMOUNT
# define SCROLL_AMOUNT 30
#endif
#ifndef DRAG_ICON_SIZE
# define DRAG_ICON_SIZE 128
#endif
#ifndef PREVIEW_WIDTH
# define PREVIEW_WIDTH 192
#endif
#ifndef PREVIEW_HEIGHT
# define PREVIEW_HEIGHT 256
#endif
#ifndef DEFAULT_CHEQUER_SIZE
# define DEFAULT_CHEQUER_SIZE 16
#endif
#ifndef INITIAL_COLLECTION_PANE_HEIGHT
# define INITIAL_COLLECTION_PANE_HEIGHT 160
#endif
#ifndef INITIAL_PROPERTY_PANE_HEIGHT
# define INITIAL_PROPERTY_PANE_HEIGHT 300
#endif
#if defined(__GNUC__)
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wdeprecated-declarations"
# pragma GCC diagnostic ignored "-Wstrict-prototypes"
#endif
#include <gdk/gdkkeysyms.h>
#include <gexiv2/gexiv2.h>
#include <gtk/gtk.h>
#include <librsvg/rsvg.h>
#include <libsimple.h>
#include <libsimple-arg.h>
#include <math.h>
#if defined(__GNUC__)
# pragma GCC diagnostic pop
#endif
#if defined(__GNUC__)
# pragma GCC diagnostic ignored "-Wunsuffixed-float-constants"
# pragma GCC diagnostic ignored "-Waggregate-return"
# pragma GCC diagnostic ignored "-Wsuggest-attribute=const"
# pragma GCC diagnostic ignored "-Wsuggest-attribute=pure"
#endif
#if defined(__GNUC__)
# define PURE __attribute__((__pure__))
#else
# define PURE
#endif
#include "logical-scroll-pane.h"
#define FLOAT_EQ(A, B) ((A) >= (B) && (A) <= (B))
#define COMMA ,
#define LIST_ORIENTATIONS(X, ...)\
X(1, TRANS_NONE, "Normal") __VA_ARGS__\
X(2, TRANS_FLOP, "Flip horizontally") __VA_ARGS__\
X(3, TRANS_180_DEGREES, "Rotate 180°") __VA_ARGS__\
X(4, TRANS_FLIP, "Flip vertically") __VA_ARGS__\
X(5, TRANS_TRANSPOSE, "Transpose") __VA_ARGS__\
X(6, TRANS_CLOCKWISE, "Rotate 90° clockwise") __VA_ARGS__\
X(7, TRANS_ANTITRANSPOSE, "Antitranspose") __VA_ARGS__\
X(8, TRANS_ANTICLOCKWISE, "Rotate 90° counterclockwise")
#define LIST_ZOOM_MODES(X, ...)\
X(ZOOM_FIT_WIDTH, width_fit_action, "width", "Fit to width", 1, 0, 0, HUGE_VAL) __VA_ARGS__\
X(ZOOM_FIT_HEIGHT, height_fit_action, "height", "Fit to height", 0, 1, 0, HUGE_VAL) __VA_ARGS__\
X(ZOOM_FIT_WINDOW, window_fit_action, "window", "Fit to window", 1, 1, 0, HUGE_VAL) __VA_ARGS__\
X(ZOOM_BEST_FIT, best_fit_action, "best", "Best fit", 1, 1, 0, 1.0) __VA_ARGS__\
X(ZOOM_STRETCH, stretch_action, "stretch", "Stretch to window", 1, 1, 1, HUGE_VAL)
enum toggle_group {
GROUP_NONE,
GROUP_ZOOM
};
enum zoom_mode {
ZOOM_CUSTOM,
#define X(E, ...) E
LIST_ZOOM_MODES(X, COMMA)
#undef X
};
enum transformation {
/* NB! different order than in LIST_ORIENTATIONS */
TRANS_NONE, /* 1 */
TRANS_CLOCKWISE, /* r */
TRANS_180_DEGREES, /* r² */
TRANS_ANTICLOCKWISE, /* r³ */
TRANS_TRANSPOSE, /* t */
TRANS_FLOP, /* rt */
TRANS_ANTITRANSPOSE, /* r²t */
TRANS_FLIP, /* r³t */
/*
* t² = r⁴ = 1
* trⁿ = r⁻ⁿt
*/
TRANS_NEGATIVE = 0x08
};
struct image {
GdkPixbuf *raster;
RsvgHandle *vector;
int width;
int height;
int has_x_dpi;
int has_y_dpi;
enum transformation embedded_transformation;
int has_transformer;
cairo_matrix_t transformer;
double x_dpi;
double y_dpi;
};
struct file {
char *path;
off_t size;
struct image image;
char **exif_tags;
GExiv2Metadata *exif;
};
typedef struct {
double s;
int i;
} Zoom;
/* collection.c */
extern GtkWidget *collection_view;
GtkWidget *create_collection_pane(void);
void set_collection_pane_visible(int visible);
void navigate_collection_drag(void);
void collection_files_changed(void);
void update_collection(void);
void collection_redraw_embedded_orientations(void);
/* dragging.c */
void set_image_drag_icon(GdkDragContext *context, struct image *image);
void set_up_dragging(void);
/* dropping.c */
size_t get_dropped_files(struct file **files_out, char **uris);
void set_up_dropping(void);
/* events.c */
void open_action(GtkAction *action, void *user);
void reload_action(GtkAction *action, void *user);
void print_action(GtkAction *action, void *user);
void properties_action(GtkAction *action, void *user);
void property_pane_action(GtkToggleAction *action, void *user);
void collection_pane_action(GtkToggleAction *action, void *user);
void preferences_action(GtkAction *action, void *user);
void close_action(GtkAction *action, void *user);
void fullscreen_action(GtkToggleAction *action, void *user);
void reset_transformations_action(GtkAction *action, void *user);
void rotate_clockwise_action(GtkAction *action, void *user);
void rotate_180_degrees_action(GtkAction *action, void *user);
void rotate_anticlockwise_action(GtkAction *action, void *user);
void flop_action(GtkAction *action, void *user);
void flip_action(GtkAction *action, void *user);
void transpose_action(GtkAction *action, void *user);
void antitranspose_action(GtkAction *action, void *user);
void invert_action(GtkToggleAction *action, void *user);
void zoom_in_action(GtkAction *action, void *user);
void zoom_out_action(GtkAction *action, void *user);
void normal_size_action(GtkToggleAction *action, void *user);
#define X(E, A, ...) void A(GtkToggleAction *action, void *user)
LIST_ZOOM_MODES(X, ;);
#undef X
void next_action(GtkAction *action, void *user);
void previous_action(GtkAction *action, void *user);
void first_action(GtkAction *action, void *user);
void last_action(GtkAction *action, void *user);
int key_pressed(GtkWidget *widget, GdkEventKey *event, void *user);
int scroll_event(GtkWidget *widget, GdkEventScroll *event, void *user);
/* files.c */
extern struct file *files;
extern size_t nfiles;
extern size_t current_file;
void destroy_file(struct file *file);
void free_files(void);
size_t files_from_array(struct file *selected_files, size_t nselected_files);
size_t files_from_list(struct file **files_out, GSList *selected_files);
int set_files_from_argv(int argc, char **argv);
struct file *get_file(void);
int navigate_without_redraw(size_t jump, size_t move);
/* filters.c */
void add_image_filters(GtkFileChooser *chooser);
void free_image_filters(void);
/* image.c */
extern GdkPixbuf *transformed_raster;
void forget_transformed_raster(void);
int get_image(struct image *image_out);
int get_original_image(struct image *image_out);
/* opening.c */
int load_image(struct file *file, int errors_to_stderr);
GtkFileChooser *construct_chooser(void);
/* printing.c */
void open_print(struct image *image);
/* render.c */
GdkPixbuf *rasterise(RsvgHandle *vector, int width, int height);
void paint_image(cairo_t *cr, struct image *image);
/* preferences.c */
extern cairo_filter_t scaling_filter;
extern GdkColor chequer_colours[2];
extern uint16_t chequer_alphas[2];
extern int chequered_background;
extern int chequer_size;
extern int apply_embedded_orientation;
extern int normal_size_is_physical_size; /* TODO implement */
void open_preferences(void);
int parse_and_set_scaling_filter(const char *s);
int parse_and_set_chequer_size(const char *s);
int parse_and_set_chequer_colours(const char *s);
/* properties.c */
GtkWidget *create_property_table(struct file *file);
void open_properties(struct file *file);
/* transform.c */
extern enum transformation trans;
enum transformation multiply_transformations(enum transformation augment, enum transformation augend);
int apply_transformations(struct image *image, struct image *image_out);
GdkPixbuf *transform_raster(GdkPixbuf *raster, enum transformation transformation);
enum transformation inverse_transformation(enum transformation t);
enum transformation reset_transformations_without_redraw(void);
int add_transformation_without_redraw(enum transformation augment);
int swaps_dimensions(enum transformation t);
void transform_point(enum transformation t, double *x, double *y, double *w, double *h);
int get_affine_matrix(cairo_matrix_t *matrix_out, enum transformation t, int width, int height);
enum transformation orientation_to_transformation(int orientation);
/* ui.c */
extern GtkWidget *window;
extern GtkWidget *display_area;
extern GtkWidget *scroll;
extern GtkToggleAction *fullscreen;
void set_up_ui(void);
void set_actions_sensitive(void);
void clear_toggles(enum toggle_group group, GtkToggleAction *except);
void set_fullscreen_mode(int active);
void set_visible_panes(int property, int collection);
void set_property_pane_visible(int visible);
void set_zoom_mode_toggle(void);
void update_property_pane(void);
int activate_fullscreen(void *user);
int deactivate_fullscreen(void *user);
void set_statusbar_message(const char *message);
void free_ui(void);
/* zoom.c */
extern Zoom zoom;
extern enum zoom_mode zoom_mode;
extern const Zoom normal_zoom;
int zoom_eq(Zoom a, Zoom b);
double get_zoom(Zoom z);
Zoom make_zoom(double s);
Zoom zoom_in(Zoom z);
Zoom zoom_out(Zoom z);
Zoom calculate_zoom_mode(struct image *image, enum zoom_mode mode);
int parse_and_set_zoom_mode(const char *s);
/* gbild.c */
int expose_image(GtkWidget *widget, GdkEventExpose *event, void *user);
void add_images(struct file *new_files, size_t nnew_files);
void set_images_from_array(struct file *selected_files, size_t nselected_files);
void set_images_from_list(GSList *selected_files);
void scroll_by(double horizontally, double vertically);
void set_zoom_around_point(Zoom new_zoom, double x, double y);
void set_zoom_around_centre(Zoom new_zoom);
void set_zoom_and_recentre(Zoom new_zoom);
void reload_redraw(void);
void transform_redraw(enum transformation augment);
void navigate_redraw(void);
int recalculate_zoom_mode(void *user);
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