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bugfix: textui换行后删除字符，无法回退到上一行的问题

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This commit is contained in:
fslongjin 2022-08-11 22:38:30 +08:00
parent 8d39334e39
commit 4a6924d7dd
2 changed files with 21 additions and 15 deletions
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22
kernel/lib/libUI/textui.c
View File

@ -227,25 +227,27 @@ int textui_putchar_window(struct textui_window_t *window, uint16_t character, ui
}
else if (character == '\b') // 退格
{
--window->vlines.chromatic[window->vline_operating].index;
char bufff[128] = {0};
--(window->vlines.chromatic[window->vline_operating].index);
{
uint16_t tmp = window->vlines.chromatic[window->vline_operating].index;
window->vlines.chromatic[window->vline_operating].chars[tmp].c = ' ';
textui_refresh_characters(window, window->vline_operating, tmp, 1);
if (tmp >= 0)
{
window->vlines.chromatic[window->vline_operating].chars[tmp].c = ' ';
textui_refresh_characters(window, window->vline_operating, tmp, 1);
}
}
// 需要向上缩一行
if (window->vlines.chromatic[window->vline_operating].index < 0)
if (window->vlines.chromatic[window->vline_operating].index <= 0)
{
window->vlines.chromatic[window->vline_operating].index = 0;
memset(window->vlines.chromatic[window->vline_operating].chars, 0, sizeof(struct textui_char_chromatic_t) * window->chars_per_line);
--window->vline_operating;
--(window->vline_operating);
if (unlikely(window->vline_operating < 0))
window->vline_operating = window->vlines_num - 1;
// 考虑是否向上滚动
if (likely(window->vlines_used >= __private_info.actual_line))
if (likely(window->vlines_used > __private_info.actual_line))
{
--window->top_vline;
if (unlikely(window->top_vline < 0))
@ -256,7 +258,11 @@ int textui_putchar_window(struct textui_window_t *window, uint16_t character, ui
}
}
else
{
if (window->vlines.chromatic[window->vline_operating].index == window->chars_per_line)
__textui_new_line(window, window->vline_operating);
__textui_putchar_window(window, character, FRcolor, BKcolor);
}
spin_unlock_irqrestore(&window->lock, rflags);
return 0;

14
kernel/lib/libUI/textui.h
View File

@ -56,7 +56,7 @@ struct textui_vline_normal_t
struct textui_vline_chromatic_t
{
struct textui_char_chromatic_t *chars;
uint16_t index; // 当前操作的位置
int16_t index; // 当前操作的位置
};
/**
@ -68,8 +68,8 @@ struct textui_window_t
struct List list;
uint32_t id; // 窗口id
uint16_t vlines_num; // 虚拟行总数
uint16_t vlines_used; // 当前已经使用了的虚拟行总数
int16_t vlines_num; // 虚拟行总数
int16_t vlines_used; // 当前已经使用了的虚拟行总数
// 指向虚拟行的数组的指针（二选一）
union
@ -78,16 +78,16 @@ struct textui_window_t
struct textui_vline_chromatic_t *chromatic;
} vlines;
uint16_t top_vline; // 位于最顶上的那一个虚拟行的行号
uint16_t vline_operating; // 正在操作的vline
uint16_t chars_per_line; // 每行最大容纳的字符数
int16_t top_vline; // 位于最顶上的那一个虚拟行的行号
int16_t vline_operating; // 正在操作的vline
int16_t chars_per_line; // 每行最大容纳的字符数
uint8_t flags; // 窗口flag
spinlock_t lock; // 窗口操作锁
};
struct textui_private_info_t
{
uint16_t actual_line; // 真实行的数量
int16_t actual_line; // 真实行的数量
struct textui_window_t *current_window; // 当前的主窗口
struct textui_window_t *default_window; // 默认print到的窗口
};