/*
* 创建一个部件，作为滚动条的容器
* 再创建一个部件，作为滚动条
* 限制滚动条的移动范围
* */
static void
ScrollBar_Init( LCUI_Widget *widget )
{
LCUI_ScrollBar *scrollbar;
scrollbar = Widget_Create_PrivData(widget, sizeof(LCUI_ScrollBar));
scrollbar->data.max_num = 100;
scrollbar->data.current_num = 100;
scrollbar->data.max_size = 100;
scrollbar->data.current_size = 100;
scrollbar->direction = 0;
scrollbar->callback_func = NULL;
scrollbar->widget = Create_Widget("button");
/* 禁用部件的自动尺寸调整 */
Widget_AutoSize( scrollbar->widget, FALSE, 0 );
Widget_Container_Add( widget, scrollbar->widget );
Set_Widget_Size( scrollbar->widget, "100%", "100%" );
Limit_Widget_Pos( scrollbar->widget, Pos(0,0), Pos(0,0) );
Set_Widget_Border( widget, RGB(100,100,100), Border(1,1,1,1) );
Set_Widget_Padding( widget, Padding(1,1,1,1) );
Set_Widget_Backcolor( widget, RGB(200,200,200) );
Set_Widget_BG_Mode( widget, BG_MODE_FILL_BACKCOLOR );
Show_Widget( scrollbar->widget );
Widget_Drag_Event_Connect( scrollbar->widget, ScrollBar_Drag );
}
static LCUI_BOOL Widget_ComputeStaticSize(LCUI_Widget w, float *width,
float *height)
{
LCUI_WidgetBoxModelRec *box = &w->box;
LCUI_WidgetStyle *style = &w->computed_style;
/* If it is non-static layout */
if (style->display == SV_NONE || style->position == SV_ABSOLUTE) {
return FALSE;
}
if (Widget_HasParentDependentWidth(w)) {
/* Compute the full size of child widget */
Widget_AutoSize(w);
/* Recompute the actual size of child widget later */
Widget_AddTask(w, LCUI_WTASK_RESIZE);
}
/* If its width is a percentage, it ignores the effect of its outer
* and inner spacing on the static width. */
if (Widget_CheckStyleType(w, key_width, scale)) {
if (style->box_sizing == SV_BORDER_BOX) {
*width = box->border.x + box->border.width;
} else {
*width = box->content.x + box->content.width;
*width -= box->content.x - box->border.x;
}
*width -= box->outer.x - box->border.x;
} else if (box->outer.width <= 0) {
return FALSE;
} else {
*width = box->outer.x + box->outer.width;
}
if (Widget_CheckStyleType(w, key_height, scale)) {
if (style->box_sizing == SV_BORDER_BOX) {
*height = box->border.y + box->border.height;
} else {
*height = box->content.y + box->content.height;
*height -= box->content.y - box->border.y;
}
*height -= box->outer.y - box->border.y;
} else if (box->outer.height <= 0) {
return FALSE;
} else {
*height = box->outer.y + box->outer.height;
}
return TRUE;
}
/*---------------------------- Private -------------------------------*/
static void
Label_Init(LCUI_Widget *widget)
/* 功能：初始化label部件数据 */
{
LCUI_Label *label;
/* label部件不需要焦点 */
widget->focus = FALSE;
label = Widget_Create_PrivData( widget, sizeof(LCUI_Label) );
label->auto_size = TRUE;
/* 初始化文本图层 */
TextLayer_Init( &label->layer );
/* 启用多行文本显示 */
TextLayer_Multiline( &label->layer, TRUE );
Widget_AutoSize( widget, FALSE, 0 );
/* 启用样式标签的支持 */
TextLayer_Using_StyleTags( &label->layer, TRUE );
}
