[ucgui] 彩色条函数

 /*

 颜色条

 */

 void ShowColorBar(void)

 {

     int x0 = , y0 = , yStep = , 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", , );

     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", , y0 + yStep);

     GUI_DispStringAt("Green", , y0 +  * yStep);

     GUI_DispStringAt("Blue", , y0 +  * yStep);

     GUI_DispStringAt("Grey", , y0 +  * yStep);

     GUI_DispStringAt("Yellow", , y0 +  * yStep);

     GUI_DispStringAt("Cyan", , y0 +  * yStep);

     GUI_DispStringAt("Magenta", , y0 +  * yStep);

     for(i=; i < xsize; i++)

     {

         U16 cs =( *(U32)i) / xsize;

         U16 x = x0 + i;

         /* 红色 */

         GUI_SetColor(cs);

         GUI_DrawVLine(x, y0, y0 +yStep - );

         GUI_SetColor(0xff +( - cs) * 0x10100L);

         GUI_DrawVLine(x, y0 +yStep, y0 +  * yStep - );

         /* 绿色 */

         GUI_SetColor(cs<<);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

         GUI_SetColor(0xff00 +( - cs) * 0x10001L);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

         /* 蓝色 */

         GUI_SetColor(cs * 0x10000L);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

         GUI_SetColor(0xff0000 +( - cs) * 0x101L);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

         /* 灰色 */

         GUI_SetColor((U32)cs * 0x10101L);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

         /* 黄色 */

         GUI_SetColor(cs * 0x101);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

         GUI_SetColor(0xffff +( - cs) * 0x10000L);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

         /* 青色 */

         GUI_SetColor(cs * 0x10100L);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

         GUI_SetColor(0xffff00 +( - cs) * 0x1L);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

         /* 洋红 */

         GUI_SetColor(cs * 0x10001);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

         GUI_SetColor(0xff00ff +( - cs) * 0x100L);

         GUI_DrawVLine(x, y0 +  * yStep, y0 +  * yStep - );

     }

 }