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 );
}
static void
ScrollBar_Drag( LCUI_Widget *widget, LCUI_DragEvent *event )
{
static LCUI_Pos pos, offset;
static LCUI_ScrollBar *scrollbar;
if( !widget->parent ) {
return;
}
scrollbar = Get_Widget_PrivData( widget->parent );
pos = Get_Widget_Global_Pos( widget );
offset = Pos_Sub( event->new_pos, pos );
pos = Pos_Add( pos, offset );
pos = GlobalPos_ConvTo_RelativePos( widget, pos );
Move_ScrollBar( widget, pos );
/* 若函数指针有效，则调用回调函数 */
if( scrollbar->callback_func ) {
scrollbar->callback_func( scrollbar->data, scrollbar->arg );
}
}
static void
ScrollBar_Drag( LCUI_Widget *widget, LCUI_WidgetEvent *event )
{
static LCUI_Pos pos, offset;
static LCUI_ScrollBar *scrollbar;
if( !widget->parent ) {
return;
}
scrollbar = Widget_GetPrivData( widget->parent );
pos = Widget_GetGlobalPos( widget );
offset = Pos_Sub( event->drag.new_pos, pos );
pos = Pos_Add( pos, offset );
pos = GlobalPos_ConvTo_RelativePos( widget, pos );
Move_ScrollBar( widget, pos );
/* 若函数指针有效，则调用回调函数 */
if( scrollbar->callback_func ) {
//_DEBUG_MSG("current_num: %d, max_num: %d\n",
//scrollbar->data.current_num, scrollbar->data.max_num);
scrollbar->callback_func( scrollbar->data, scrollbar->arg );
}
}
