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Diffstat (limited to '')
| -rw-r--r-- | common.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/common.h b/common.h new file mode 100644 index 0000000..aaf4b09 --- /dev/null +++ b/common.h @@ -0,0 +1,197 @@ +/* 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 + +#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 <gtk/gtk.h> +#include <libsimple.h> +#include <libsimple-arg.h> +#if defined(__GNUC__) +# pragma GCC diagnostic pop +#endif + +#if defined(__GNUC__) +# pragma GCC diagnostic ignored "-Wunsuffixed-float-constants" +# 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 , + + +enum toggle_group { + GROUP_NONE, + GROUP_ZOOM +}; + +enum zoom_mode { + ZOOM_CUSTOM, + ZOOM_NORMAL, + ZOOM_FIT_WIDTH, + ZOOM_FIT_HEIGHT, + ZOOM_FIT_WINDOW, + ZOOM_BEST_FIT +}; + +enum transformation { + 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 file { + char *path; + off_t size; + GdkPixbuf *image; +}; + +typedef double Zoom; /* TODO */ + + +/* dragging.c */ +void set_up_dragging(void); + +/* dropping.c */ +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 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); +void width_fit_action(GtkToggleAction *action, void *user); +void height_fit_action(GtkToggleAction *action, void *user); +void window_fit_action(GtkToggleAction *action, void *user); +void best_fit_action(GtkToggleAction *action, void *user); +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 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_image; +GdkPixbuf *get_image(void); +GdkPixbuf *get_original_image(void); + +/* opening.c */ +int load_image(struct file *file, int errors_to_stderr); +GtkFileChooser *construct_chooser(void); + +/* printing.c */ +void open_print(GdkPixbuf *image); + +/* properties.c */ +void open_properties(struct file *file); + +/* transform.c */ +extern enum transformation trans; +GdkPixbuf *apply_transformations(GdkPixbuf *image); +enum transformation reset_transformations_without_redraw(void); +int add_transformation_without_redraw(enum transformation augment); +void transform_point(enum transformation t, double *x, double *y, double *w, double *h); + +/* 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); +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; +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_fit(GdkPixbuf *image, int xfit, int yfit, double cap); +Zoom calculate_zoom_mode(GdkPixbuf *image, enum zoom_mode mode); + +/* 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); |