1 /* 2 颜色条 3 */ 4 void ShowColorBar(void) 5 { 6     int x0 = 60, y0 = 40, yStep = 15, i; 7     int NumColors = LCD_GetDevCap(LCD_DEVCAP_NUMCOLORS); 8     int xsize = LCD_GetDevCap(LCD_DEVCAP_XSIZE) - x0; 9     GUI_SetFont(&GUI_Font13HB_1);10     GUI_DispStringHCenterAt("μC/GUI-sample:Show color bars", 160, 0);11     GUI_SetFont(&GUI_Font8x8);12     GUI_SetColor(GUI_WHITE);13     GUI_SetBkColor(GUI_BLACK);14     #if(LCD_FIXEDPALETTE)15         GUI_DispString("Fixed palette: ");16         GUI_DispDecMin(LCD_FIXEDPALETTE);17     #endif18     GUI_DispStringAt("Red", 0, y0 + yStep);19     GUI_DispStringAt("Green", 0, y0 + 3 * yStep);20     GUI_DispStringAt("Blue", 0, y0 + 5 * yStep);21     GUI_DispStringAt("Grey", 0, y0 + 6 * yStep);22     GUI_DispStringAt("Yellow", 0, y0 + 8 * yStep);23     GUI_DispStringAt("Cyan", 0, y0 + 10 * yStep);24     GUI_DispStringAt("Magenta", 0, y0 + 12 * yStep);25     for(i=0; i < xsize; i++)26     {27         U16 cs =(255 *(U32)i) / xsize;28         U16 x = x0 + i;29         /* 红色 */30         GUI_SetColor(cs);31         GUI_DrawVLine(x, y0, y0 +yStep - 1);32         GUI_SetColor(0xff +(255 - cs) * 0x10100L);33         GUI_DrawVLine(x, y0 +yStep, y0 + 2 * yStep - 1);34         /* 绿色 */35         GUI_SetColor(cs<<8);36         GUI_DrawVLine(x, y0 + 2 * yStep, y0 + 3 * yStep - 1);37         GUI_SetColor(0xff00 +(255 - cs) * 0x10001L);38         GUI_DrawVLine(x, y0 + 3 * yStep, y0 + 4 * yStep - 1);39         /* 蓝色 */40         GUI_SetColor(cs * 0x10000L);41         GUI_DrawVLine(x, y0 + 4 * yStep, y0 + 5 * yStep - 1);42         GUI_SetColor(0xff0000 +(255 - cs) * 0x101L);43         GUI_DrawVLine(x, y0 + 5 * yStep, y0 + 6 * yStep - 1);44         /* 灰色 */45         GUI_SetColor((U32)cs * 0x10101L);46         GUI_DrawVLine(x, y0 + 6 * yStep, y0 + 7 * yStep - 1);47         /* 黄色 */48         GUI_SetColor(cs * 0x101);49         GUI_DrawVLine(x, y0 + 7 * yStep, y0 + 8 * yStep - 1);50         GUI_SetColor(0xffff +(255 - cs) * 0x10000L);51         GUI_DrawVLine(x, y0 + 8 * yStep, y0 + 9 * yStep - 1);52         /* 青色 */53         GUI_SetColor(cs * 0x10100L);54         GUI_DrawVLine(x, y0 + 9 * yStep, y0 + 10 * yStep - 1);55         GUI_SetColor(0xffff00 +(255 - cs) * 0x1L);56         GUI_DrawVLine(x, y0 + 10 * yStep, y0 + 11 * yStep - 1);57         /* 洋红 */58         GUI_SetColor(cs * 0x10001);59         GUI_DrawVLine(x, y0 + 11 * yStep, y0 + 12 * yStep - 1);60         GUI_SetColor(0xff00ff +(255 - cs) * 0x100L);61         GUI_DrawVLine(x, y0 + 12 * yStep, y0 + 13 * yStep - 1);62     }63 }