[ucgui] 彩色条函数

 

 

/*
颜色条
*/
void ShowColorBar(void)
{
    int x0 = 60, y0 = 40, yStep = 15, i;
    int NumColors = LCD_GetDevCap(LCD_DEVCAP_NUMCOLORS);
    int xsize = LCD_GetDevCap(LCD_DEVCAP_XSIZE) - x0;
    GUI_SetFont(&GUI_Font13HB_1);
    GUI_DispStringHCenterAt("μC/GUI-sample:Show color bars", 160, 0);
    GUI_SetFont(&GUI_Font8x8);
    GUI_SetColor(GUI_WHITE);
    GUI_SetBkColor(GUI_BLACK);
    #if(LCD_FIXEDPALETTE)
        GUI_DispString("Fixed palette: ");
        GUI_DispDecMin(LCD_FIXEDPALETTE);
    #endif
    GUI_DispStringAt("Red", 0, y0 + yStep);
    GUI_DispStringAt("Green", 0, y0 + 3 * yStep);
    GUI_DispStringAt("Blue", 0, y0 + 5 * yStep);
    GUI_DispStringAt("Grey", 0, y0 + 6 * yStep);
    GUI_DispStringAt("Yellow", 0, y0 + 8 * yStep);
    GUI_DispStringAt("Cyan", 0, y0 + 10 * yStep);
    GUI_DispStringAt("Magenta", 0, y0 + 12 * yStep);
    for(i=0; i < xsize; i++)
    {
        U16 cs =(255 *(U32)i) / xsize;
        U16 x = x0 + i;
        /* 红色 */
        GUI_SetColor(cs);
        GUI_DrawVLine(x, y0, y0 +yStep - 1);
        GUI_SetColor(0xff +(255 - cs) * 0x10100L);
        GUI_DrawVLine(x, y0 +yStep, y0 + 2 * yStep - 1);
        /* 绿色 */
        GUI_SetColor(cs<<8);
        GUI_DrawVLine(x, y0 + 2 * yStep, y0 + 3 * yStep - 1);
        GUI_SetColor(0xff00 +(255 - cs) * 0x10001L);
        GUI_DrawVLine(x, y0 + 3 * yStep, y0 + 4 * yStep - 1);
        /* 蓝色 */
        GUI_SetColor(cs * 0x10000L);
        GUI_DrawVLine(x, y0 + 4 * yStep, y0 + 5 * yStep - 1);
        GUI_SetColor(0xff0000 +(255 - cs) * 0x101L);
        GUI_DrawVLine(x, y0 + 5 * yStep, y0 + 6 * yStep - 1);
        /* 灰色 */
        GUI_SetColor((U32)cs * 0x10101L);
        GUI_DrawVLine(x, y0 + 6 * yStep, y0 + 7 * yStep - 1);
        /* 黄色 */
        GUI_SetColor(cs * 0x101);
        GUI_DrawVLine(x, y0 + 7 * yStep, y0 + 8 * yStep - 1);
        GUI_SetColor(0xffff +(255 - cs) * 0x10000L);
        GUI_DrawVLine(x, y0 + 8 * yStep, y0 + 9 * yStep - 1);
        /* 青色 */
        GUI_SetColor(cs * 0x10100L);
        GUI_DrawVLine(x, y0 + 9 * yStep, y0 + 10 * yStep - 1);
        GUI_SetColor(0xffff00 +(255 - cs) * 0x1L);
        GUI_DrawVLine(x, y0 + 10 * yStep, y0 + 11 * yStep - 1);
        /* 洋红 */
        GUI_SetColor(cs * 0x10001);
        GUI_DrawVLine(x, y0 + 11 * yStep, y0 + 12 * yStep - 1);
        GUI_SetColor(0xff00ff +(255 - cs) * 0x100L);
        GUI_DrawVLine(x, y0 + 12 * yStep, y0 + 13 * yStep - 1);
    }
}