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55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* gui/input.h - Input operations
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef GUI_INPUT_H
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#define GUI_NPUT_H
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#include <stdbool.h>
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#include <gtk/gtk.h>
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/*
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* All members of input_ops are optional, i.e., can be NULL.
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*
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* hover_begin and drag_begin must not call input_push or input_pop.
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*/
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struct input_ops {
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bool (*click)(void *user, int x, int y);
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bool (*hover_begin)(void *user, int x, int y);
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bool (*hover_update)(void *user, int x, int y);
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bool (*hover_click)(void *user, int x, int y);
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void (*hover_end)(void *user);
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bool (*drag_begin)(void *user, int x, int y);
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void (*drag_move)(void *user, int dx, int dy);
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void (*drag_end)(void *user);
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void (*scroll)(void *user, int x, int y, int dy);
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/* down = 1, up = -1 */
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void (*key)(void *user, int x, int y, int keyval);
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};
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bool input_accept(void *user, int x, int y);
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void input_update(void);
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void input_push(const struct input_ops *ops, void *user);
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void input_pop(void);
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void input_setup(GtkWidget *da);
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#endif /* !GUI_INPUT_H */
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