RealTouch硬件鼠标支持了，各位大神赶紧把它融合到RTGUI里面去吧。

发布于 2012-12-07 17:01:52 浏览：3316 订阅该版

RA8875的驱动现在已经加入硬件图形光标支持，可以在RealTouch中使用了。
首先，需要做一个鼠标光标图像数据，下面是取了一个仿windows光标的数据：
```const uint8_t cursor[256]={
	0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xa5,
	0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0x91,
	0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0x41,
	0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xa9,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xa4,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0x90,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0x40,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0xa9,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0xa4,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0x90,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0x40,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0xa9,0x00,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0xa4,0x00,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0x90,0x00,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0x40,0x00,0x00,0x01,
	0xaa,0xaa,0xaa,0xa9,0x00,0x00,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0x55,0x00,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0x40,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0x90,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0x40,0x00,0x01,
	0xaa,0xaa,0xaa,0xaa,0xaa,0x40,0x15,0x01,
	0xaa,0xaa,0xaa,0xaa,0xa9,0x00,0x1a,0x41,
	0xaa,0xaa,0xaa,0xaa,0xa9,0x00,0x6a,0x91,
	0xaa,0xaa,0xaa,0xaa,0xa4,0x00,0x6a,0xa5,
	0xaa,0xaa,0xaa,0xaa,0xa4,0x01,0xaa,0xa9,
	0xaa,0xaa,0xaa,0xaa,0xa0,0x01,0xaa,0xaa,
	0xaa,0xaa,0xaa,0xaa,0x90,0x06,0xaa,0xaa,
	0xaa,0xaa,0xaa,0xaa,0x90,0x06,0xaa,0xaa,
	0xaa,0xaa,0xaa,0xaa,0x90,0x0a,0xaa,0xaa,
	0xaa,0xaa,0xaa,0xaa,0x90,0x1a,0xaa,0xaa,
	0xaa,0xaa,0xaa,0xaa,0xa5,0x6a,0xaa,0xaa,
	0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa
 };```
因为RA8875的光标数据是由两个自定义颜色，一个屏幕背景色，一个屏幕背景色反色4种颜色组成的，每个颜色用2个位表示，每个字节代表4个点的颜色，所以32x32的光标图像需要用256个字节（32X32X2/8），这个取模比较难搞，这里提供一个经过笔者好久才制作好的3色光标，和windows的一样。
下面是在RA8875中载入图形光标的函数：
```static void _set_mouse_image(const uint8_t *mouse_img)
{ 
	uint32_t i,j;
  LCD_write_reg(0x84, 0xFF);//GCC0
  LCD_write_reg(0x85, 0x00);//GCC1
  LCD_write_reg(0x41,  2<<2);//write to gc
 _set_write_cursor(0, 0);
  LCD_CmdWrite(MRWC);//set CMD02 to  prepare data write
	for(i=0;i<32;i++)
	{
   for(j=0;j<8;j++)
		{
     LCD_DataWrite(*mouse_img++);
    }
	}
  LCD_write_reg(0x41, (1 << 7) | (0 <<2 ));//display cursor 
}```
接下来就是设置光标位置的函数了，如下：
```static void _set_mouse_position(uint32_t X, uint32_t Y)
{
    LCD_CmdWrite(0x81);
    LCD_DataWrite(X>>8);
    LCD_CmdWrite(0x80);
    LCD_DataWrite(X);

LCD_CmdWrite(0x83);
    LCD_DataWrite(Y>>8);
    LCD_CmdWrite(0x82);
    LCD_DataWrite(Y);
}```
附件中提供一个开启硬件光标的RA8875驱动，可以直接替换RealTouch主程序中的RA8875.c文件，这样烧录到RealTouch就是可以看到光标了。在finsh中使用set_mouse_XY(X,Y)可以进行设置光标的位置。因为还不懂如何与RTGUI关联，所以暂时提供这个，等待各位制作GUI的大神们加入RTGUI中，支持硬件光标。
下载附件 [ra8875.rar](https://oss-club.rt-thread.org/uploads/4345_7585404aca5f528865b6426dc2d30d39.rar)