幕布
幕布控件可以创建5个不同方向的幕布,分别是上、下、左、右、中间 (参考T_GUI_CURTAIN_ENUM),创建幕布控件之前,必须先创建幕布视图控件(curtainview)来容纳幕布。
用法
创建幕布控件
如果想要创建带有方向的幕布控件,可以使用gui_curtain_create(parent, filename, x, y, w, h, orientation, scope) 函数来创建。
Orientation 表示方向,可以创建上、下、左、右、中间等五个不同方向的幕布控件。
Scope 表示幕布的扩展范围,范围为0到1。
幕布控件方向
幕布控件有5个方向,分别是上、下、左、右、中间。
typedef enum
{
    CURTAIN_UNDEFINED,
    CURTAIN_UP,
    CURTAIN_DOWN,
    CURTAIN_LEFT,
    CURTAIN_RIGHT,
    CURTAIN_MIDDLE,
} T_GUI_CURTAIN_ENUM;
示例
#include "root_image_hongkong/ui_resource.h"
#include <gui_img.h>
#include "gui_curtainview.h"
#include "gui_curtain.h"
void page_tb_clock(void *parent)
{
    gui_curtainview_t *ct = gui_curtainview_create(parent, "ct", 0, 0, 368, 448);
    gui_curtain_t *ct_clock = gui_curtain_create(ct, "1", 0, 0, 368, 448, CURTAIN_MIDDLE, 1);
    gui_curtain_t *ct_control0 = gui_curtain_create(ct, "2", 0, 0, 368, 448, CURTAIN_UP, 1);
    gui_curtain_t *ct_left = gui_curtain_create(ct, "3", 0, 0, 368, 448, CURTAIN_LEFT, 0.65f);
    gui_curtain_t *ct_card = gui_curtain_create(ct, "card", 0, 0, 368, 448, CURTAIN_DOWN, 1);
    extern void page_ct_clock(void *parent);
    extern void page_ct_sidebar(void *parent);
    extern void tabview_up_design(void *parent_widget);
    extern void curtain_down_design(void *parent_widget);
    page_ct_clock(ct_clock);
    page_ct_sidebar(ct_left);
    tabview_up_design(ct_control0);
    curtain_down_design(ct_card);
}

API
Functions
- 
gui_curtain_t *gui_curtain_create(void *parent, const char *filename, int16_t x, int16_t y, int16_t w, int16_t h, T_GUI_CURTAIN_ENUM orientation, float scope)
- Create a curtain effect widget, which should be nested in a curtainview. - 参数:
- parent – the father widget nested in(hould be a curtainview.) 
- filename – this curtain widget’s name. 
- x – the X-axis coordinate relative to parent widget 
- y – the Y-axis coordinate relative to parent widget 
- w – width 
- h – height 
- orientation – the orientation of the curtain,refer to gui_curtain_t_ORIENTATION. 
- scope – The range in which curtains can be expanded 
 
- 返回:
- gui_curtain_t* 
 
- 
struct gui_curtain_t
- #include <gui_curtain.h>curtain structure