75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
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//
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// Created by william on 1/12/24.
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//
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#ifndef NESEMULATOR_CURSOR_H
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#define NESEMULATOR_CURSOR_H
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#include <curses.h>
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#define CURSOR_OFFSET_UP (-1)
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#define CURSOR_OFFSET_DOWN 1
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#define CURSOR_OFFSET_LEFT (-1)
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#define CURSOR_OFFSET_RIGHT 1
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#define CURSOR_AT_ENABLED A_REVERSE
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#define CURSOR_AT_DISABLED A_NORMAL
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typedef struct cursor {
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WINDOW *window;
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int min_x;
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int min_y;
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int max_x;
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int max_y;
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int multiplier_x;
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int multiplier_y;
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int width;
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int pos_x;
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int pos_y;
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bool enabled;
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} Cursor;
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/**
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* Initializes a cursor with default values.
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*
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* @param cursor A reference to the cursor to initialize
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* @param window The window the cursor is in
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*/
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void cursor_init(Cursor *cursor, WINDOW *window, int max_x, int max_y);
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/**
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* Enables a cursor, making it visible in its window.
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*
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* @param cursor The cursor
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*/
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void cursor_enable(Cursor *cursor);
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/**
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* Disables a cursor, removing it from the display.
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*
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* @param cursor The cursor
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*/
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void cursor_disable(Cursor *cursor);
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/**
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* Sets the position of the cursor.
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* The positions are from left to right (horizontal) and top to bottom (vertical).
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*
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* @param cursor The cursor
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* @param x The new horizontal position
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* @param y The new vertical position
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*/
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void cursor_set_pos(Cursor *cursor, int x, int y);
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/**
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* Moves the position of the cursor by an offset. This function ensures that the cursor is kept in the window bounds.
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* A negative offset moves the cursor position towards the 0 direction (left or top).
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* A position offset moves it in the opposite direction (right or bottom).
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*
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* @param cursor The cursor
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* @param offset_x The horizontal offset
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* @param offset_y The vertical offset
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*/
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void cursor_move(Cursor *cursor, int offset_x, int offset_y);
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#endif //NESEMULATOR_CURSOR_H
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