/**************************** 私有函数 **********************************/
static void
Move_ScrollBar( LCUI_Widget *widget, LCUI_Pos new_pos )
{
double scale;
int size;
LCUI_ScrollBar *scrollbar;
//_DEBUG_MSG("new_pos: %d,%d\n", new_pos.x, new_pos.y);
scrollbar = Widget_GetPrivData( widget->parent );
/* 使该坐标在限制范围内 */
new_pos = Widget_GetValidPos( widget, new_pos );
/* 判断滚动条的方向 */
if( scrollbar->direction == 0 ) { /* 纵向 */
/* 先得到容器高度 */
size = Widget_GetContainerHeight( widget->parent );
//_DEBUG_MSG("1,size: %d\n", size);
/* 减去自身高度 */
size -= _Widget_GetHeight( widget );
//_DEBUG_MSG("2,size: %d\n", size);
/* 再用当前坐标除以size，得到比例 */
scale = new_pos.y * 1.0 / size;
//_DEBUG_MSG("%.2f = %d * 1.0 / %d\n", scale, new_pos.y, size);
/* 将max_num乘以比例，得出current_num的值 */
scrollbar->data.current_num = scale * scrollbar->data.max_num;
//_DEBUG_MSG("current_num: %d, scale: %.2f, max_num: %d\n",
//scrollbar->data.current_num, scale, scrollbar->data.max_num);
} else { /* 横向 */
size = Widget_GetContainerWidth( widget->parent );
size -= _Widget_GetWidth( widget );
scale = new_pos.x * 1.0 / size;
scrollbar->data.current_num = scale * scrollbar->data.max_num;
}
//_DEBUG_MSG("widget:%p, pos: %d,%d\n", widget, new_pos.x, new_pos.y);
Widget_Move( widget, new_pos );
}
static void Window_OnUpdate( LCUI_Widget *window )
{
LCUI_Window *wnd;
LCUI_Border border;
char h_str[20];
wnd = (LCUI_Window*)Widget_GetPrivateData( window );
border = Border( 1, BORDER_STYLE_SOLID, RGB(200,200,200) );
border.top_width = TOP_PANDDING;
/* 若窗口已获得焦点 */
if( Widget_GetFocus( window ) ) {
border.top_color = wnd->theme_color;
border.bottom_color = wnd->theme_color;
border.left_color = wnd->theme_color;
border.right_color = wnd->theme_color;
Widget_SetShadow( window, BoxShadow(0,0,8,wnd->theme_color) );
} else {
Widget_SetShadow( window, BoxShadow(0,0,8,ARGB(120,200,200,200)) );
}
Widget_SetBorder( window, border );
/* 更新窗口标题栏上的关闭按钮 */
Widget_Update( wnd->btn_close );
sprintf( h_str, "%dpx", Widget_GetContainerHeight(window)-35 );
Widget_SetSize( wnd->client_area, "100%", h_str );
}
static void
ScrollBar_Update( LCUI_Widget *widget )
{
static int pos, max_len;
static double scale;
static char scale_str[256];
LCUI_ScrollBar *scrollbar;
scrollbar = Widget_GetPrivData( widget );
/* 计算比例，之后转换成字符串 */
scale = scrollbar->data.current_size*1.0 / scrollbar->data.max_size;
sprintf( scale_str, "%.2lf%%", scale*100 );
//_DEBUG_MSG("current_num: %d, max_num: %d\n",
//scrollbar->data.current_num, scrollbar->data.max_num);
/* 判断滚动条的方向 */
if( scrollbar->direction == 0 ) { /* 纵向 */
Widget_SetSize( scrollbar->widget, NULL, scale_str );
max_len = Widget_GetContainerHeight( widget );
max_len -= _Widget_GetHeight( scrollbar->widget );
Widget_LimitPos( scrollbar->widget, Pos(0,0), Pos( 0, max_len ) );
scale = scrollbar->data.current_num*1.0 / scrollbar->data.max_num;
pos = scale * max_len;
//_DEBUG_MSG("num: %d / %d\n",
//scrollbar->data.current_num, scrollbar->data.max_num);
//_DEBUG_MSG("ScrollBar_Update(), scale: %.2f\n", scale);
//_DEBUG_MSG("ScrollBar_Update(), y: %d\n", pos);
/* 移动滚动条 */
Widget_Move( scrollbar->widget, Pos(0,pos) );
} else { /* 横向 */
Widget_SetSize( scrollbar->widget, scale_str, NULL );
max_len = Widget_GetContainerWidth( widget );
max_len -= _Widget_GetWidth( scrollbar->widget );
Widget_LimitPos( scrollbar->widget, Pos(0,0), Pos(max_len,0) );
scale = scrollbar->data.current_num*1.0 / scrollbar->data.max_num;
pos = scale * max_len;
//printf("ScrollBar_Update(), num: %d / %d\n",
//scrollbar->data.current_num, scrollbar->data.max_num);
//printf("ScrollBar_Update(), scale: %.2f\n", scale);
//printf("ScrollBar_Update(), x: %d\n", pos);
Widget_Move( scrollbar->widget, Pos(pos, 0) );
}
}
