separate vui.c, vui.h

1 files changed, 144 insertions, 0 deletions

diff --git a/vui.h b/vui.h
new file mode 100644
index 0000000..4980adf
--- /dev/null
+++ b/vui.h
@@ -0,0 +1,144 @@
+#ifndef VUI_H
+#define VUI_H
+
+#include <stdarg.h>
+
+#include "wrmr.h"
+
+typedef enum {
+	KEY_EOF      = 0,
+	KEY_BKSP     = 0x08,
+	KEY_RET      = 0x0d,
+	KEY_ESC      = 0x1b,
+	KEY_DEL      = 0x7f,
+	KEY_UTF8_MAX = 0x10ffff,
+
+	KEY_LEFT, KEY_RIGHT, KEY_UP, KEY_DOWN,
+	KEY_HOME, KEY_END, KEY_PGUP, KEY_PGDN,
+
+	KEY_F1,  KEY_F2,  KEY_F3,  KEY_F4,
+	KEY_F5,  KEY_F6,  KEY_F7,  KEY_F8,
+	KEY_F9,  KEY_F10, KEY_F11, KEY_F12,
+
+	KEY_SHIFT_BIT = 0x200000,
+	KEY_CTRL_BIT  = 0x400000,
+	KEY_ALT_BIT   = 0x800000,
+	KEY_META_BIT  = 0x1000000,
+	KEY_INVALID   = 0x7fffffff,
+
+	KEY_CTRL_MASK = 0xe000000,
+	KEY_BASE_MASK = ~KEY_CTRL_MASK,
+} VuiKey;
+
+typedef enum {
+	FG_BLACK     = 0,
+	FG_RED       = 1,
+	FG_GREEN     = 2,
+	FG_YELLOW    = 3,
+	FG_BLUE      = 4,
+	FG_MAGENTA   = 5,
+	FG_CYAN      = 6,
+	FG_WHITE     = 7,
+
+	FG_BBLACK    = FG_BLACK    + 8,
+	FG_BRED      = FG_RED      + 8,
+	FG_BGREEN    = FG_GREEN    + 8,
+	FG_BYELLOW   = FG_YELLOW   + 8,
+	FG_BBLUE     = FG_BLUE     + 8,
+	FG_BMAGENTA  = FG_MAGENTA  + 8,
+	FG_BCYAN     = FG_CYAN     + 8,
+	FG_BWHITE    = FG_WHITE    + 8,
+
+	BG_BLACK     = FG_BLACK    << 4,
+	BG_RED       = FG_RED      << 4,
+	BG_GREEN     = FG_GREEN    << 4,
+	BG_YELLOW    = FG_YELLOW   << 4,
+	BG_BLUE      = FG_BLUE     << 4,
+	BG_MAGENTA   = FG_MAGENTA  << 4,
+	BG_CYAN      = FG_CYAN     << 4,
+	BG_WHITE     = FG_WHITE    << 4,
+
+	BG_BBLACK    = FG_BBLACK   << 4,
+	BG_BRED      = FG_BRED     << 4,
+	BG_BGREEN    = FG_BGREEN   << 4,
+	BG_BYELLOW   = FG_BYELLOW  << 4,
+	BG_BBLUE     = FG_BBLUE    << 4,
+	BG_BMAGENTA  = FG_BMAGENTA << 4,
+	BG_BCYAN     = FG_BCYAN    << 4,
+	BG_BWHITE    = FG_BWHITE   << 4,
+
+	A_BOLD       = 1 << 8,
+	A_DIM        = 1 << 9,
+	A_ITALIC     = 1 << 10,
+	A_UNDERSCORE = 1 << 11,
+	A_BLINK      = 1 << 12,
+	A_REVERSE    = 1 << 13,
+} VuiAttr;
+
+#define ATTR_FG(a) ((a) & 0xf)
+#define ATTR_BG(a) (((a)>>4) & 0xf)
+#define ATTR_A(a) ((a) & ~0xff)
+#define ATTR_DEFAULT (FG_WHITE | BG_BLACK)
+
+typedef uint32_t VuiChar;
+
+typedef struct {
+	unsigned width, height;
+	VuiChar *chr;
+	uint16_t *attr;
+} VuiBuffer;
+
+typedef struct {
+	unsigned width, height;
+	VuiBuffer buf1, buf2;
+	VuiBuffer *front, *back;
+	void (*redraw_fn)(void *ctx);
+	void *redraw_ctx;
+	int redraw_all;
+	int scroll_x, scroll_y;
+	int curs_vis, curs_x, curs_y;
+} VuiWindow;
+
+VuiWindow *vui_win(void);
+
+#define LINES (vui_win()->height)
+#define COLS  (vui_win()->width)
+
+#define BCHR(b,x,y)  ((b)->chr[(x) + (y) * (b)->width])
+#define BATTR(b,x,y) ((b)->attr[(x) + (y) * (b)->width])
+#define CHR(x,y)  BCHR(vui_win()->front, x, y)
+#define ATTR(x,y) BATTR(vui_win()->front, x, y)
+
+void vui_init(void);
+void vui_fini(void);
+
+void vui_blit(void);
+void vui_clear(void);
+void vui_scroll(int dx, int dy);
+
+void vui_chr(int x, int y, VuiChar c);
+void vui_chra(int x, int y, VuiChar c, VuiAttr a);
+
+void vui_puts(int x, int y, const char *s);
+void vui_putsa(int x, int y, const char *s, VuiAttr a);
+void vui_putsn(int x, int y, const char *s, unsigned n);
+void vui_putsna(int x, int y, const char *s, unsigned n, VuiAttr a);
+
+int vui_avprintf(int x, int y, VuiAttr a, const char *fmt, va_list ap);
+int vui_aprintf(int x, int y, VuiAttr a, const char *fmt, ...);
+int vui_printf(int x, int y, const char *fmt, ...);
+
+void vui_fill(VuiChar c, VuiAttr a);
+void vui_fill_rect(VuiChar c, VuiAttr a, int x0, int y0, int width, int height);
+
+void vui_curs_vis(int vis);
+void vui_curs_pos(int x, int y);
+
+void vui_redraw_fn(void (*fn)(void *ctx));
+void vui_redraw_ctx(void *ctx);
+
+int vui_wait_for_input(int ms);
+int vui_has_input(void);
+VuiKey vui_key(void);
+
+#endif