static void
TextBox_TextLayer_Click( LCUI_Widget *widget, LCUI_WidgetEvent *event )
{
static LCUI_Pos pos;
static LCUI_TextBox *tb;
static LCUI_TextLayer *layer;
/* 保存当前已获得焦点的部件 */
active_textbox = widget;
layer = TextBox_GetTextLayer( widget );
tb = Widget_GetPrivData( active_textbox );
if( tb->show_placeholder ) {
pos.x = pos.y = 0;
} else {
/* 全局坐标转换成相对坐标 */
pos = GlobalPos_ConvTo_RelativePos( tb->text, event->drag.cursor_pos );
}
//printf("pos: %d,%d\n", pos.x, pos.y);
/* 根据像素坐标，设定文本光标的位置 */
TextLayer_Cursor_SetPixelPos( layer, pos );
/* 获取光标的当前位置 */
pos = TextLayer_Cursor_GetPos( layer );
/* 主要是调用该函数更新当前文本浏览区域，以使光标处于显示区域内 */
TextBox_Cursor_Move( widget, pos );
}
/* 在光标处添加文本 */
static void
__TextBox_Text_Add( LCUI_Widget *widget, wchar_t *new_text )
{
LCUI_Pos cur_pos;
LCUI_TextLayer *layer;
layer = TextBox_GetTextLayer( widget );
TextLayer_Text_AddW( layer, new_text );
cur_pos = TextLayer_Cursor_GetPos( layer );
TextBox_Cursor_Move( widget, cur_pos );
}
static void
__TextBox_Text_Add(LCUI_Widget *widget, char *new_text)
/* 在光标处添加文本 */
{
LCUI_Pos cur_pos;
LCUI_TextLayer *layer;
layer = TextBox_Get_TextLayer( widget );
TextLayer_Text_Add( layer, new_text );
cur_pos = TextLayer_Get_Cursor_Pos( layer );
TextBox_Cursor_Move( widget, cur_pos );
}
TextBox_Text_Backspace(LCUI_Widget *widget, int n)
/* 删除光标左边处n个字符 */
{
LCUI_Pos cur_pos;
LCUI_TextLayer *layer;
layer = TextBox_GetTextLayer( widget );
TextLayer_Text_Backspace( layer, n );
cur_pos = TextLayer_Cursor_GetPos( layer );
TextBox_Cursor_Move( widget, cur_pos );
Widget_Update( widget );
return 0;
}
static void
TextBox_Input( LCUI_Widget *widget, LCUI_WidgetEvent *event )
{
static char buff[5];
static int cols, flag, rows;
static LCUI_Pos cur_pos;
static LCUI_TextLayer *layer;
static LCUI_TextBox *textbox;
//_DEBUG_MSG("you input: %d\n", event->key.key_code);
layer = TextBox_GetTextLayer( widget );
textbox = Widget_GetPrivData( widget );
cur_pos = TextLayer_Cursor_GetPos( layer );
cols = TextLayer_GetRowLen( layer, cur_pos.y );
rows = TextLayer_GetRows( layer );
switch( event->key.key_code ) {
case LCUIKEY_HOMEPAGE: //home键移动光标至行首
cur_pos.x = 0;
goto mv_cur_pos;
case LCUIKEY_END: //end键移动光标至行尾
cur_pos.x = cols;
goto mv_cur_pos;
case LCUIKEY_LEFT:
if( cur_pos.x > 0 ) {
cur_pos.x--;
} else if( cur_pos.y > 0 ) {
cur_pos.y--;
cur_pos.x = TextLayer_GetRowLen( layer, cur_pos.y );
}
goto mv_cur_pos;
case LCUIKEY_RIGHT:
if( cur_pos.x < cols ) {
cur_pos.x++;
} else if( cur_pos.y < rows-1 ) {
cur_pos.y++;
cur_pos.x = 0;
}
goto mv_cur_pos;
case LCUIKEY_UP:
if( cur_pos.y > 0 ) {
cur_pos.y--;
}
goto mv_cur_pos;
case LCUIKEY_DOWN:
if( cur_pos.y < rows-1 ) {
cur_pos.y++;
}
mv_cur_pos:;
/* 移动光标位置 */
if( textbox->show_placeholder ) {
cur_pos.x = cur_pos.y = 0;
}
TextBox_Cursor_Move( widget,cur_pos );
break;
case LCUIKEY_BACKSPACE: //删除光标左边的字符
TextBox_Text_Backspace( widget, 1 );
break;
case LCUIKEY_DELETE:
//删除光标右边的字符
break;
default:;
if( textbox->limit_mode == 0 ) {
flag = 1;
} else {
flag = 0;
}
/* 处理文本框的字符输入限制 */
if( Check_Option( textbox->limit_mode, ONLY_0_TO_9 ) ) {
if( event->key.key_code >= '0'
&& event->key.key_code <= '9' ) {
++flag;
}
}
if( Check_Option( textbox->limit_mode, ONLY_a_TO_z ) ) {
if( event->key.key_code >= 'a'
&& event->key.key_code <= 'z' ) {
++flag;
}
}
if( Check_Option( textbox->limit_mode, ONLY_A_TO_Z ) ) {
if( event->key.key_code >= 'A'
&& event->key.key_code <= 'Z' ) {
++flag;
}
}
if( Check_Option( textbox->limit_mode, ONLY_UNDERLINE ) ) {
if( event->key.key_code == '_' ) {
++flag;
}
}
//_DEBUG_MSG("input char: %c, %d\n", event->key.key_code, flag);
/* 如果该ASCII码代表的字符是可见的 */
if( flag == 1 && (event->key.key_code == 10 ||
(event->key.key_code > 31
&& event->key.key_code < 126)) ) {
//wchar_t *text;
buff[0] = event->key.key_code;
buff[1] = 0;
TextBox_Text_Add( widget, buff);
//text = TextLayer_Get_Text( layer );
//free( text );
}
//向文本框中添加字符
break;
}
}