2019-10-17 14:23:01 +08:00
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## grid\_t
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### 概述
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2019-12-14 13:25:56 +08:00
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grid控件。一个简单的容器控件，用于网格排列一组控件。
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它本身不提供布局功能，仅提供具有语义的标签，让xml更具有可读性。
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子控件的布局可用layout\_children属性指定。
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请参考[布局参数](https://github.com/zlgopen/awtk/blob/master/docs/layout.md)。
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grid\_t是[widget\_t](widget_t.md)的子类控件，widget\_t的函数均适用于grid\_t控件。
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在xml中使用"grid"标签创建grid。如：
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```xml
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<grid x="0" y="0" w="100%" h="100%" children_layout="default(c=2,r=2,m=5,s=5)">
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<button name="open:basic" text="Basic"/>
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<button name="open:button" text="Buttons"/>
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<button name="open:edit" text="Edits"/>
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<button name="open:keyboard" text="KeyBoard"/>
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</grid>
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```
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可用通过style来设置控件的显示风格，如背景颜色等。如：
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```xml
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<style name="default" border_color="#a0a0a0">
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<normal bg_color="#f0f0f0" />
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</style>
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```
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2019-10-17 14:23:01 +08:00
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----------------------------------
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### 函数
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<p id="grid_t_methods">
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| 函数名称 | 说明 |
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| -------- | ------------ |
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| <a href="#grid_t_grid_cast">grid\_cast</a> | 转换为grid对象(供脚本语言使用)。 |
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| <a href="#grid_t_grid_create">grid\_create</a> | 创建grid对象 |
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#### grid\_cast 函数
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-----------------------
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* 函数功能：
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2019-11-15 11:33:43 +08:00
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> <p id="grid_t_grid_cast">转换为grid对象(供脚本语言使用)。
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2019-10-17 14:23:01 +08:00
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* 函数原型：
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```
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widget_t* grid_cast (widget_t* widget);
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```
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* 参数说明：
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| 参数 | 类型 | 说明 |
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| -------- | ----- | --------- |
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| 返回值 | widget\_t* | grid对象。 |
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| widget | widget\_t* | grid对象。 |
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#### grid\_create 函数
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-----------------------
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* 函数功能：
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2019-11-15 11:33:43 +08:00
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> <p id="grid_t_grid_create">创建grid对象
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2019-10-17 14:23:01 +08:00
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* 函数原型：
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```
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widget_t* grid_create (widget_t* parent, xy_t x, xy_t y, wh_t w, wh_t h);
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```
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* 参数说明：
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| 参数 | 类型 | 说明 |
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| -------- | ----- | --------- |
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| 返回值 | widget\_t* | 对象。 |
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| parent | widget\_t* | 父控件 |
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| x | xy\_t | x坐标 |
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| y | xy\_t | y坐标 |
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| w | wh\_t | 宽度 |
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| h | wh\_t | 高度 |
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