/**************************** 私有函数 **********************************/
static void
Move_ScrollBar( LCUI_Widget *widget, LCUI_Pos new_pos )
{
double scale;
int size;
LCUI_ScrollBar *scrollbar;
scrollbar = Get_Widget_PrivData( widget->parent );
/* 使该坐标在限制范围内 */
new_pos = Get_Widget_Valid_Pos( 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 = _Get_Widget_Container_Height( widget );
/* 减去自身高度 */
size -= _Get_Widget_Height( widget );
/* 再用当前坐标除以size，得到比例 */
scale = new_pos.y * 1.0 / size;
/* 将max_num乘以比例，得出current_num的值 */
scrollbar->data.current_num = scale * scrollbar->data.max_num;
} else { /* 横向 */
size = _Get_Widget_Container_Width( widget );
size -= _Get_Widget_Width( widget );
scale = new_pos.x * 1.0 / size;
scrollbar->data.current_num = scale * scrollbar->data.max_num;
}
Move_Widget( widget, new_pos );
}
static void
ScrollBar_Update( LCUI_Widget *widget )
{
static int pos, max_len;
static double scale;
static char scale_str[256];
LCUI_ScrollBar *scrollbar;
scrollbar = Get_Widget_PrivData( 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 );
//printf( "ScrollBar_Update(): scale: %s\n", scale_str );
/* 判断滚动条的方向 */
if( scrollbar->direction == 0 ) { /* 纵向 */
Set_Widget_Size( scrollbar->widget, NULL, scale_str );
max_len = Get_Container_Height( widget );
max_len -= _Get_Widget_Height( scrollbar->widget );
Limit_Widget_Pos( scrollbar->widget, Pos(0,0), Pos( 0, max_len ) );
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(), y: %d\n", pos);
/* 移动滚动条 */
Move_Widget( scrollbar->widget, Pos(0,pos) );
} else { /* 横向 */
Set_Widget_Size( scrollbar->widget, scale_str, NULL );
max_len = Get_Container_Width( widget );
max_len -= _Get_Widget_Width( scrollbar->widget );
Limit_Widget_Pos( 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);
Move_Widget( scrollbar->widget, Pos(pos, 0) );
}
}
static void Show_Window(LCUI_Widget *win_p)
/* 功能：在窗口显示时，进行相关处理 */
{
LCUI_Size size;
LCUI_Pos pos;
LCUI_Window *win;
win = (LCUI_Window*)Get_Widget_PrivData(win_p);
win->count++;
if(win->count == 1) {/* 如果是第一次显示 */
size = _Get_Widget_Container_Size( win_p );
pos = Align_Get_Pos( size, _Get_Widget_Size(win_p), win->init_align );
Move_Widget( win_p, pos );
}
//有待扩展
}
static void *Move_Flash_Img(void *arg)
/* 功能：移动进度条中闪光的位置 */
{
int x=0;
LCUI_Widget *widget = (LCUI_Widget*)arg;
LCUI_Widget *flash = Get_ProgressBar_Flash_Img_Widget(widget);
LCUI_ProgressBar *pb = Get_Widget_PrivData(widget);
while(1) {
for(x=(0-flash->size.w);
x<=flash->parent->size.w;
x+=(pb->img_move_speed/20.0+0.5)) {
Move_Widget(flash, Pos(x , flash->pos.y));
usleep(50000);
}
usleep(pb->sleep_time);
}
LCUI_Thread_Exit(NULL);
}
static void Move_Window(LCUI_Widget *titlebar, LCUI_DragEvent *event)
/* 功能：处理鼠标移动事件 */
{
LCUI_Pos pos;
LCUI_Widget *window;
if(event->first_click == 0 ) {
window = titlebar->parent;
pos = event->new_pos;
if(window != NULL) {
/* 减去在窗口中的相对坐标, 得出窗口位置 */
pos = Pos_Sub(pos, Get_Widget_Pos(titlebar));
if(window->parent != NULL) {
pos = Pos_Sub(pos, Get_Widget_Global_Pos(window->parent));
}
/* 移动窗口的位置 */
Move_Widget(window, pos);
}
}
}
static void Exec_Update_ProgressBar(LCUI_Widget *widget)
/* 功能：更新进度条的图形 */
{
LCUI_ProgressBar *pb = (LCUI_ProgressBar*)Get_Widget_PrivData(widget);
if(Strcmp(&widget->style, "dynamic") == 0) {
/* 绘制空槽 */
Draw_Empty_Slot(&widget->graph, widget->size.w, widget->size.h);
Set_Widget_Border_Style(widget, BORDER_STYLE_NONE);
/* 载入两个图形 */
if(!Graph_Valid(&pb->fore_graph))
Load_Graph_ProgressBar_Fore(&pb->fore_graph);
if(!Graph_Valid(&pb->flash_image))
Load_Graph_ProgressBar_Img(&pb->flash_image);
Resize_Widget(pb->img_pic_box, Get_Graph_Size(&pb->flash_image));
/* 让图片盒子显示这个图形 */
Set_PictureBox_Image_From_Graph(pb->img_pic_box, &pb->flash_image);
} else {
Strcpy(&widget->style, "classic");
if(!Graph_Valid(&pb->fore_graph))
Graph_Create(&pb->fore_graph, 10, widget->size.h);
Graph_Fill_Color(&pb->fore_graph, RGB(80,80,200));
Graph_Fill_Alpha(&pb->fore_graph, 255);
}
/* 让图片盒子显示这个图形 */
Set_PictureBox_Image_From_Graph(pb->fore_pic_box, &pb->fore_graph);
int width, height;
/* 计算进度条的长度 */
width = (widget->size.w - widget->border.left - widget->border.right)
* pb->value / pb->max_value + 0.5;
height = widget->size.h - widget->border.top - widget->border.bottom;
Move_Widget(pb->fore_pic_box, Pos(widget->border.left, widget->border.top));
/* 改变进度条的尺寸 */
Resize_Widget(pb->fore_pic_box, Size(width, height));
}
void Window_Widget_Auto_Size(LCUI_Widget *win_p)
/* 功能：在窗口尺寸改变时自动改变标题栏和客户区的尺寸 */
{
int x, y, width, height;
LCUI_Widget *titlebar;
LCUI_Widget *client_area;
titlebar = Get_Window_TitleBar(win_p);
client_area = Get_Window_Client_Area(win_p);
/* 按不同的风格来处理 */
switch(Get_Widget_Border_Style(win_p)) {
case BORDER_STYLE_NONE: /* 没有边框 */
/* 先计算坐标和尺寸 */
x = win_p->border.left;
y = win_p->border.top;
width = win_p->size.w - x - win_p->border.right;
height = win_p->size.h - y - win_p->border.bottom;
Move_Widget( client_area, Pos(x, y) );/* 调整位置 */
Resize_Widget( client_area, Size(width, height) );/* 调整大小 */
Hide_Widget( titlebar );/* 隐藏标题栏 */
Show_Widget( client_area );/* 客户区需要显示 */
break;
case BORDER_STYLE_LINE_BORDER: /* 线条边框 */
Move_Widget( client_area, Pos(0, 0) );
Resize_Widget( client_area,
Size(win_p->size.w, win_p->size.h) );
Hide_Widget( titlebar);
Show_Widget( client_area);
break;
case BORDER_STYLE_STANDARD: /* 标准边框 */
/*
* 说明：由于用户区的尺寸和位置的调整，需要确定标题栏的尺寸，因此，
* 调用Exec_Resize_Widget()函数立刻调整标题栏尺寸，如果是调用
* Resize_Widget()函数，那么，确定的尺寸会有误，因为标题栏的尺
* 寸还是以前的尺寸。
* */
Set_Widget_Border(win_p, RGB(50,50,50), Border(1,1,1,1));
/* 先计算坐标和尺寸 */
x = win_p->border.left;
y = win_p->border.top;
width = win_p->size.w - x - win_p->border.right;
height = win_p->size.h - y - win_p->border.bottom;
Move_Widget(titlebar, Pos(x, y) );
Resize_Widget(titlebar, Size(width, 25));
Set_Widget_Align(client_area, ALIGN_BOTTOM_CENTER, Pos(0, y));
Resize_Widget(client_area, Size(width, height - 23));
/* 标题栏和客户区都需要显示 */
Show_Widget(titlebar);
Show_Widget(client_area);
break;
default:
//
break;
}
}
