对窗口滚动的支持

18_day/bootpack.c

@@ -185,6 +185,11 @@ void HariMain(void)
 						fifo32_put(&task_cons->fifo, 8 + 256);
 					}
 				}
+				if (i == 256 + 0x1c) { /*回车键*/
+					if (key_to != 0) { /*发送至命令行窗口*/
+						fifo32_put(&task_cons->fifo, 10 + 256);
+					}
+				}
 				if (i == 256 + 0x0f) { /* Tab键*/
 					if (key_to == 0) {
 						key_to = 1;
@@ -388,9 +393,9 @@ void console_task(struct SHEET *sheet)
 {
 	struct TIMER *timer;
 	struct TASK *task = task_now();
-
-	int i, fifobuf[128], cursor_x = 16, cursor_c = -1;
+	int i, fifobuf[128], cursor_x = 16, cursor_y = 28, cursor_c = -1;
 	char s[2];
+	int x, y;
 
 	fifo32_init(&task->fifo, 128, fifobuf, task);
 	timer = timer_alloc();
@@ -426,7 +431,7 @@ void console_task(struct SHEET *sheet)
 				cursor_c = COL8_FFFFFF;
 			}
 			if (i == 3) { /*光标OFF */
-				boxfill8(sheet->buf, sheet->bxsize, COL8_000000, cursor_x, 28, cursor_x + 7, 43);
+				boxfill8(sheet->buf, sheet->bxsize, COL8_000000, cursor_x, cursor_y, cursor_x + 7, cursor_y + 15);
 				cursor_c = -1;
 			} 
 			if (256 <= i && i <= 511) { /*键盘数据（通过任务A） */
@@ -434,25 +439,56 @@ void console_task(struct SHEET *sheet)
 					/*退格键*/
 					if (cursor_x > 16) {
 						/*用空白擦除光标后将光标前移一位*/
-						putfonts8_asc_sht(sheet, cursor_x, 28, COL8_FFFFFF, COL8_000000, " ", 1);
+						putfonts8_asc_sht(sheet, cursor_x, cursor_y, COL8_FFFFFF, COL8_000000, " ", 1);
 						cursor_x -= 8;
 					}
+				} else if (i == 10 + 256) {
+					/*回车键*/
+					/*用空格将光标擦除*/
+					putfonts8_asc_sht(sheet, cursor_x, cursor_y, COL8_FFFFFF, COL8_000000, " ", 1);
+					if (cursor_y < 28 + 112) {
+						cursor_y += 16; /*换行*/
+					} else {
+						/*滚动*/
+						for (y = 28; y < 28 + 112; y++) {
+							for (x = 8; x < 8 + 240; x++) {
+								sheet->buf[x + y * sheet->bxsize] = sheet->buf[x + (y + 16) * sheet->bxsize];
+							}
+						}
+						for (y = 28 + 112; y < 28 + 128; y++) {
+							for (x = 8; x < 8 + 240; x++) {
+								sheet->buf[x + y * sheet->bxsize] = COL8_000000;
+							}
+						}
+						sheet_refresh(sheet, 8, 28, 8 + 240, 28 + 128);
+					}
+					/*显示提示符*/
+					putfonts8_asc_sht(sheet, 8, cursor_y, COL8_FFFFFF, COL8_000000, ">", 1);
+					cursor_x = 16;
+					if (cursor_y < 28 + 112) {
+						/*用空格将光标擦除*/
+						putfonts8_asc_sht(sheet, cursor_x, cursor_y, COL8_FFFFFF, COL8_000000, " ", 1);
+						cursor_y += 16;
+						/*显示提示符*/
+						putfonts8_asc_sht(sheet, 8, cursor_y, COL8_FFFFFF, COL8_000000, ">", 1);
+						cursor_x = 16;
+					} 
 				} else {
 					/*一般字符*/
 					if (cursor_x < 240) {
 						/*显示一个字符之后将光标后移一位 */
 						s[0] = i - 256;
 						s[1] = 0;
-						putfonts8_asc_sht(sheet, cursor_x, 28, COL8_FFFFFF, COL8_000000, s, 1);
+						putfonts8_asc_sht(sheet, cursor_x, cursor_y, COL8_FFFFFF, COL8_000000, s, 1);
 						cursor_x += 8;
 					}
 				}
 			}
 			/*重新显示光标*/
 			if (cursor_c >= 0) { /*从此开始*/
-				boxfill8(sheet->buf, sheet->bxsize, cursor_c, cursor_x, 28, cursor_x + 7, 43);
+				boxfill8(sheet->buf, sheet->bxsize, cursor_c, cursor_x, cursor_y, cursor_x + 7, cursor_y + 15);
 			} 
-			sheet_refresh(sheet, cursor_x, 28, cursor_x + 8, 44);
+			sheet_refresh(sheet, cursor_x, cursor_y, cursor_x + 8, cursor_y + 16);
 		}
 	}
 }