Add User Interface library

libui/Makefile

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+#
+#  (c) 2005 Laurent Vivier <Laurent@lvivier.info>
+#
+
+TOP = $(shell pwd)
+
+68000FLAGS = -m68000 -Wa,-m68000
+CFLAGS	+= -nostdlib -nodefaultlibs -Wall -Werror -Wno-multichar -fpic -O2 -Os
+CPPFLAGS = -I$(TOP) -DARCH_M68K
+
+LIBRARY = libui.a
+
+SOURCES = window.c progressbar.c
+
+HEADERS = 
+
+all: $(LIBRARY)
+
+include $(TOP)/../Rules.mk

libui/libui.h

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+/*
+ *
+ * (c) 2007 Laurent Vivier <Laurent@lvivier.info>
+ *
+ */
+
+typedef struct emile_window {
+	int l, c;
+	int h, w;
+} emile_window_t;
+
+typedef struct emile_progressbar {
+	emile_window_t win;
+	int max;
+	int current;
+} emile_progressbar_t;
+
+extern void console_set_cursor_position(int l, int c);
+extern void console_video_inverse(void);
+extern void console_video_normal(void);
+extern void console_select_charset(char c);
+
+extern void emile_window(emile_window_t *win);
+extern emile_progressbar_t* emile_progressbar_create(emile_window_t *win, int max);
+extern void emile_progressbar_value(emile_progressbar_t* bar, int value);
+extern void emile_progressbar_delete(emile_progressbar_t* bar);

libui/progressbar.c

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+/*
+ *
+ * (c) 2007 Laurent Vivier <Laurent@lvivier.info>
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "libui.h"
+
+emile_progressbar_t* emile_progressbar_create(emile_window_t *win, int max)
+{
+	int i;
+	emile_progressbar_t *bar;
+
+	if (max <= 0)
+		return NULL;
+
+	bar = (emile_progressbar_t*)malloc(sizeof(emile_progressbar_t));
+	if (bar == NULL)
+		return bar;
+
+	bar->win = *win;
+	bar->max = max;
+	bar->current = 0;
+
+	emile_window(&bar->win);
+
+	console_set_cursor_position(bar->win.l, bar->win.c);
+	console_select_charset('0');
+	for (i = 0; i < bar->win.w; i++)
+		putchar('a');
+	console_select_charset('B');
+
+	return bar;
+}
+
+void emile_progressbar_delete(emile_progressbar_t* bar)
+{
+	free(bar);
+}
+
+void emile_progressbar_value(emile_progressbar_t* bar, int value)
+{
+	int i;
+
+	if ( (value < 0) || (value > bar->max) )
+		return;
+
+	console_select_charset('0');
+	console_video_inverse();
+	for (i = bar->current * bar->win.w / bar->max; 
+		 i < value * bar->win.w / bar->max; i++)
+	{
+		console_set_cursor_position(bar->win.l, bar->win.c + i);
+		putchar(' ');
+	}
+	console_video_normal();
+	console_select_charset('B');
+
+	bar->current = value;
+}

libui/window.c

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+/*
+ *
+ * (c) 2007 Laurent Vivier <Laurent@lvivier.info>
+ *
+ */
+
+#include <stdio.h>
+#include "libui.h"
+
+void emile_window(emile_window_t *win)
+{
+	int i;
+	int c = win->c - 1;
+	int l = win->l - 1;
+	int w = win->w + 2;
+	int h = win->h + 2;
+
+	console_select_charset('0');
+	console_set_cursor_position(l, c);
+	putchar('l');
+	for (i = 1; i < w - 1; i++)
+		putchar('q');
+	putchar('k');
+	for(i = 1; i < h - 1; i++)
+	{
+		console_set_cursor_position(l + i, c);
+		putchar('x');
+		console_set_cursor_position(l + i, c + w - 1);
+		putchar('x');
+	}
+	console_set_cursor_position(l + h - 1, c);
+	putchar('m');
+	for (i = 1; i < w - 1; i++)
+		putchar('q');
+	putchar('j');
+	console_select_charset('B');
+}