view Discovery/Src/show_logbook.c @ 319:d8e86af78474 fix-version

bugfix: correct packed main version number in dive header This fixes a rather mysterious bug. Users report that up to 1.3.5 beta, a correct version number is shown in libdivecomputer based applications (like in Subsurface, in the extra data tab). Careful examining the code in both libdivecomputer and the firmware shows a subtle error in the bit mask and shift operation to pack a full X.Y.Z.beta version number in 2 bytes (as is available in the dive header) in the firmware end (as the libdivecomputer code looks sane, assuming this is the right way to pack things). Likely, this bug crept in in the conversion from the closed source Keil period into the open source GCC setup of the code base. So its impossible to document the exact history of this problem here. Further notice that the main version number is only 1 of 3 version numbers, denoting the full version of the firmware (besides Font and RTE). Finally notice that this way of packing is limited to 2^5 bits (decimal 32), so we could easily build a 1.4.21, but not a 1.4.55. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Wed, 19 Jun 2019 14:31:50 +0200
parents f11f0bf6ef2d
children 5a633dece17a
line wrap: on
line source

///////////////////////////////////////////////////////////////////////////////
/// -*- coding: UTF-8 -*-
///
/// \file   Discovery/Src/show_logbook.c
/// \brief  show_logbook_logbook_show_log_page1 /
/// \author Heinrichs Weikamp gmbh
/// \date   07-July-2014
///
/// \details
///
/// $Id$
///////////////////////////////////////////////////////////////////////////////
/// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
///
///     This program is free software: you can redistribute it and/or modify
///     it under the terms of the GNU General Public License as published by
///     the Free Software Foundation, either version 3 of the License, or
///     (at your option) any later version.
///
///     This program is distributed in the hope that it will be useful,
///     but WITHOUT ANY WARRANTY; without even the implied warranty of
///     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
///     GNU General Public License for more details.
///
///     You should have received a copy of the GNU General Public License
///     along with this program.  If not, see <http://www.gnu.org/licenses/>.
//////////////////////////////////////////////////////////////////////////////

#include "base.h"
#include "logbook.h"
#include "gfx_colors.h"
#include "gfx_engine.h"
#include "gfx_fonts.h"
#include "show_logbook.h"
#include "unit.h"

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h> // for abs()

/* Private variables ---------------------------------------------------------*/

static GFX_DrawCfgScreen	tLOGscreen;
static GFX_DrawCfgScreen	tLOGbackground;


static void print_gas_name(char* output,uint8_t lengh,uint8_t oxygen,uint8_t helium);
static int16_t get_colour(int16_t color);

/* Overview */
static void show_logbook_logbook_show_log_page1(GFX_DrawCfgScreen *hgfx, uint8_t StepBackwards);
/* Temperature */
static void show_logbook_logbook_show_log_page2(GFX_DrawCfgScreen *hgfx, uint8_t StepBackwards);
/* Gas List */
static void show_logbook_logbook_show_log_page3(GFX_DrawCfgScreen *hgfx, uint8_t StepBackwards);
/* ppO2 */
static void show_logbook_logbook_show_log_page4(GFX_DrawCfgScreen *hgfx, uint8_t StepBackwards);

static inline uint32_t MaxU32LOG(uint32_t a, uint32_t b)
{
    return((a>b)?a:b);
}

/**
  ******************************************************************************
  * @brief   GFX write label. /  print coordinate system & depth graph
  * @author  Peter Ryser
  * @version V0.0.1
  * @date    07-July-2014
  ******************************************************************************
    *
  * @param  hgfx:
  * @param  window: 			WindowGimpStyle
  * @param  mode: 			different modes depending witch page uses the function
  * @param  dataLength:
  * @param  depthdata:
  * @param  colordata: 			1
  * @retval None
  */
static void show_logbook_draw_depth_graph(GFX_DrawCfgScreen *hgfx, uint8_t StepBackwards, SWindowGimpStyle* window, short mode, uint16_t dataLength, uint16_t* depthdata, uint8_t * colordata, uint16_t * decostopdata)
{
    SLogbookHeader logbookHeader;
    SWindowGimpStyle wintemp = *window;
    SWindowGimpStyle winsmal;
    logbook_getHeader(StepBackwards, &logbookHeader);
    int divetime = logbookHeader.diveTimeMinutes;
    int maxDepth =  logbookHeader.maxDepth/100;

    int16_t saveBottom = wintemp.bottom;
    int16_t saveTop = 0 - wintemp.top;

    //*** Horisontal (depth) ***************************************************

    //--- calc depth lines and labels --
    int vscale = 0;
    int vstep = 0;

    vstep = maxDepth / 5;
    vscale = vstep * 5;
    if(vscale < maxDepth)
    {
        vstep += 1;
        vscale += 5;
    }
/*
    if(vscale <
    for(int i=1; i <= 20; i++)
    {
        vscale = i * 25;
        vstep = i * 5;
        if( vscale > maxDepth)
            break;
    }
*/
    //--- print depth labels ---
    winsmal.left = wintemp.left - 48;
    winsmal.top	= wintemp.top  - 3;
    winsmal.right = wintemp.left -1;
    winsmal.bottom = winsmal.top + 16;

    Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,CLUT_GasSensor1,"[m]");

 //   winsmal.left = wintemp.left - 48;
    char msg[3];
    float deltaline = ((float)(wintemp.bottom - wintemp.top))/5;
    for(int i = 1; i<=5; i++)
    {
        winsmal.top	= wintemp.top + deltaline * i - 14;
        winsmal.bottom = winsmal.top + 16;

    //    winsmal.right = wintemp.left - 2;
        snprintf(msg,5,"%i",i * vstep);
        Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,CLUT_GasSensor1,msg);
    }

    //vertical (Time) *******************************************************************
    //--- calc time lines and labels --
    int timestep = 0;
    int lines = 0;
    for(int i=1; i <= 60; i++)
    {
        timestep = i * 5;
        lines = divetime/timestep;
        if(lines < 7)
        {
            break;
        }
    }
    //*** print coordinate system grit ***
    int winwidth = wintemp.right - wintemp.left;
    float vdeltaline = ((float)(winwidth * timestep))/divetime;
    GFX_draw_Grid( &tLOGbackground,wintemp,  0, vdeltaline,  5,0,  CLUT_LogbookGrid);


    //--- print time labels ---
    winsmal.left = wintemp.left;
    winsmal.top	=  wintemp.top - 40;
    winsmal.right = winsmal.left + 60;
    winsmal.bottom = winsmal.top + 16;

    Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,CLUT_GasSensor1,"min");
    for(int i = 1; i<=lines; i++)
    {
        winsmal.left= wintemp.left + vdeltaline * i - 15;
        winsmal.right = winsmal.left + 30;
        snprintf(msg,5,"%3i",i * timestep);
        Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,CLUT_GasSensor1,msg);
    }
    winsmal.left = wintemp.left;// - 9;
    winsmal.top	=  wintemp.top - 40;
    winsmal.right = winsmal.left + 60;

    //--- print depth graph ---
    //adapt window
    int winhight = wintemp.bottom - wintemp.top;
    int newhight = (winhight * maxDepth)/vscale;
    wintemp.bottom = wintemp.top + newhight;
    //wintemp.fontcolor = LOGBOOK_GRAPH_DEPTH;

    int datamax = 0;
    for(int i=0;i<dataLength;i++)
    {
        if(depthdata[i]>datamax)
            datamax = depthdata[i];
    }

    if(decostopdata)
    {
        if(dataLength <= 1000)
        {
            uint8_t colortemp[1000];

            for(int i = 0; i<dataLength; i++)
            {
                if(decostopdata[i] > depthdata[i])
                {
                    colortemp[i] = CLUT_WarningRed;
                }
                else
                {
                    colortemp[i] = CLUT_NiceGreen;
                }
            }
            GFX_graph_print(hgfx,&wintemp,saveTop,1,0,datamax, decostopdata,dataLength, 0, colortemp);
        }
        else
            GFX_graph_print(hgfx,&wintemp,saveTop,1,0,datamax, decostopdata,dataLength, CLUT_NiceGreen, NULL);
    }

    if(settingsGetPointer()->FlipDisplay)
    {
		winsmal.right = 800 - wintemp.left;
		winsmal.left = 800 - wintemp.right;
		winsmal.bottom = wintemp.bottom;
		winsmal.top = wintemp.top;
    }
    else
    {
		winsmal.right = wintemp.right;
		winsmal.left = wintemp.left;
		winsmal.bottom = wintemp.bottom;
		winsmal.top = wintemp.top;
    }

    switch(mode)
    {
    case 0:
        GFX_graph_print(hgfx,&winsmal,0,1,0,datamax, depthdata,dataLength,CLUT_GasSensor1, NULL);
        break;
    case 1:
        GFX_graph_print(hgfx,&winsmal,saveBottom,1,0,datamax, depthdata,dataLength,CLUT_GasSensor0,colordata);
        break;
    case 2:
        if(*colordata)
            GFX_graph_print(hgfx,&winsmal,0,1,0,datamax, depthdata,dataLength,CLUT_GasSensor0,colordata);
        else
            GFX_graph_print(hgfx,&winsmal,0,1,0,datamax, depthdata,dataLength,CLUT_GasSensor1, NULL);
    }
}



/**
  ******************************************************************************
  * @brief  scaleAdapt
  * @author  heinrichs weikamp gmbh
  * @version V0.0.1
  * @date    29-Nov-2016
  ******************************************************************************
    *
  * @param  ...
  * @retval *OutputStepOfScale, *OutputMaxValueOnScale, *OutputTop, *OutputBottom

    * fit to multiples of 1�C (data format is 1/10�C)
    */

static void scaleAdapt(	int InputTop, int InputBottom,
                                    int16_t *OutputMinValue, int16_t *OutputMaxValue, int *OutputTop, int *OutputBottom,
                                    uint16_t *OutputStepOfScale, int16_t *OutputMaxValueOnScale)
{
//	uint16_t oldScale;
    uint16_t newScale;
//	uint16_t diff_newScale;

//	int16_t oldMaxOnScale;
    int16_t newMaxOnScale;
//	int16_t diff_newMaxOnScale;
    _Bool negativeMaxValue = 0;

//	float oldRange;
    float newRange;

    float	sizeOfScreen;
//	float InputTopValue;
//	float InputBottomValue;
    float screenToRangeRatio;
    float diffOutMaxToMaxOnScale;
    float diffOutMinToMaxOnScale;
    int positonOutputMaxValue;
    int positonOutputMinValue;


// scale
//	oldScale = *OutputStepOfScale;
    newScale = *OutputStepOfScale + 9;
    newScale /= 10;
    newScale *= 10;
//	diff_newScale = newScale - *OutputStepOfScale;
//	oldRange = 5 * oldScale;
    newRange = 5 * newScale;
    *OutputStepOfScale = newScale;

    // MaxValueOnScale
//	oldMaxOnScale = *OutputMaxValueOnScale;
    if(OutputMaxValueOnScale < 0)
    {
        negativeMaxValue = 1;
        newMaxOnScale = 0 - *OutputMaxValueOnScale;
    }
    else
    {
        negativeMaxValue = 0;
        newMaxOnScale = *OutputMaxValueOnScale;
    }
    newMaxOnScale += 9;
    newMaxOnScale /= 10;
    newMaxOnScale *= 10;
    if(negativeMaxValue)
    {
//		diff_newMaxOnScale = newMaxOnScale + *OutputMaxValueOnScale;
        *OutputMaxValueOnScale = 0 - newMaxOnScale;
    }
    else
    {
//		diff_newMaxOnScale = newMaxOnScale - *OutputMaxValueOnScale;
        *OutputMaxValueOnScale = newMaxOnScale;
    }


    // new coordinates
    sizeOfScreen = 1 + InputBottom - InputTop;
//	InputTopValue = *OutputMaxValueOnScale;
//	InputBottomValue = InputTopValue + (6 * *OutputStepOfScale);

    screenToRangeRatio = sizeOfScreen / newRange;
    diffOutMaxToMaxOnScale = abs(*OutputMaxValueOnScale) - abs(*OutputMaxValue);
//	diffOutMinToMax = abs(*OutputMinValue - *OutputMaxValue);
    diffOutMinToMaxOnScale = abs(*OutputMaxValueOnScale - *OutputMinValue);

    positonOutputMaxValue = (int)(diffOutMaxToMaxOnScale * screenToRangeRatio);
    positonOutputMaxValue += *OutputTop;
    positonOutputMinValue = (int)(diffOutMinToMaxOnScale * screenToRangeRatio);
    positonOutputMinValue += *OutputTop;
//	positonOutputMinValue = (int)(diffOutMinToMax * screenToRangeRatio);
//	positonOutputMinValue += positonOutputMaxValue;
    *OutputTop = positonOutputMaxValue;
    *OutputBottom = positonOutputMinValue;
}


/**
  ******************************************************************************
  * @brief  scaleHelper
  * @author  heinrichs weikamp gmbh
  * @version V0.0.1
  * @date    13-Oct-2016
  ******************************************************************************
    *
  * @param  hgfx:
  * @retval None

    * pixel  50 oben
    * pixel 439 unten
    * pixel 390 gesamt h�he

    * for temperature, input is �C * 10
    */

static void scaleHelper(	uint16_t InputDataLength, int16_t *InputDataArray, int InputTop, int InputBottom,
                                    int16_t *OutputMinValue, int16_t *OutputMaxValue, int *OutputTop, int *OutputBottom,
                                    uint16_t *OutputStepOfScale, int16_t *OutputMaxValueOnScale)
{
    int32_t 	datamin = INT16_MAX; // 32 bit for delta calculation ( delta is unsigned -> value can be 2x INT16_MAX)
    int32_t 	datamax = INT16_MIN;
    uint16_t	deltaMinMax = 1;
//	uint16_t	deltaMinMaxUsed = 1;
//	uint16_t 	digits = 1;
//	uint16_t 	scaler = 1;
    uint32_t	step = 1;
    const int	sizeOfScreen = InputBottom - InputTop;
    float pixel2range = 1.0;

    // min, max, deltaMinMax, OutputMinValue, OutputMaxValue
    for(uint16_t i = 0; i < InputDataLength; i++)
    {
        if(InputDataArray[i] > datamax)
            datamax = InputDataArray[i];

        if(InputDataArray[i] < datamin)
            datamin = InputDataArray[i];
    }

    deltaMinMax = (uint16_t)(datamax - datamin);

    *OutputMinValue = (int16_t)datamin;
    *OutputMaxValue = (int16_t)datamax;

    // step
    step = deltaMinMax / 5;
    while(deltaMinMax > (step * 5))
    {
        step += 1;
    }
    pixel2range = ((float)sizeOfScreen) / (step * 5);

    *OutputStepOfScale = (uint16_t)step;
    *OutputMaxValueOnScale = *OutputMaxValue;
    *OutputTop = InputTop;
    *OutputBottom = ((int)(pixel2range * deltaMinMax)) + *OutputTop;
}

/**
  ******************************************************************************
  * @brief  show_logbook_logbook_show_log_page1 /
  * @author  Peter Ryser
  * @version V0.0.1
  * @date    07-July-2014
  ******************************************************************************
    *
  * @param  hgfx:
  * @retval None
  */
static void show_logbook_logbook_show_log_page1(GFX_DrawCfgScreen *hgfx,uint8_t StepBackwards)
{
    SWindowGimpStyle wintemp;
    SWindowGimpStyle winsmal;
    wintemp.left = 50;
    wintemp.right = 799 - wintemp.left;
    wintemp.top = 50;
    wintemp.bottom = 479 - 40;

    SLogbookHeader logbookHeader;
    logbook_getHeader(StepBackwards ,&logbookHeader);

    uint16_t depthdata[1000] = { 0 };
    uint8_t  gasdata[1000] = { 0 };
    int16_t tempdata[1000] = { 0 };

    uint16_t dataLength = 0;
    dataLength = logbook_readSampleData(StepBackwards, 1000, depthdata,gasdata, tempdata, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);

    //Print Date
    uint8_t year = logbookHeader.dateYear;
    uint8_t month = logbookHeader.dateMonth;
    uint8_t day =  logbookHeader.dateDay;
    char text[40];
    snprintf(text, 20, "20%02i-%02i-%02i", year, month, day);

    Gfx_write_label_var(hgfx, 30, 250,10, &FontT42,CLUT_GasSensor1,text);


    // Print logbook number with offset
    if(settingsGetPointer()->logbookOffset)
    {
        int32_t logNumber;
        logNumber = settingsGetPointer()->logbookOffset - StepBackwards;
        if(logNumber < 0)
            logNumber = 0;
        else
        if(logNumber > 9999)
            logNumber = 9999;

        snprintf(text,20,"#%i",logNumber);
        Gfx_write_label_var(hgfx, 300, 590,10, &FontT42,CLUT_GasSensor1,text);
    }

    //Print time
    uint8_t hour = logbookHeader.timeHour;
    uint8_t minute = logbookHeader.timeMinute;
    snprintf(text,20,"%02i:%02i",hour,minute);
    Gfx_write_label_var(hgfx, 600, 749,10, &FontT42,CLUT_GasSensor1,text);

    //Print Dive Mode (OC/CCR/...)
    switch(logbookHeader.diveMode)
    {
    case DIVEMODE_OC:
            snprintf(text,20,"open circuit");
            break;
    case DIVEMODE_CCR:
            snprintf(text,20,"closed circuit");
            break;
    case DIVEMODE_Gauge:
            snprintf(text,20,"Gauge");
            break;
    case DIVEMODE_Apnea:
            snprintf(text,20,"Apnea");
            break;
    }
    Gfx_write_label_var(hgfx, 30, 250,60, &FontT42,CLUT_GasSensor4,text);

    // Decomodel
    if(logbookHeader.diveMode <= DIVEMODE_CCR)
    {
        switch(logbookHeader.decoModel)
        {
        case GF_MODE:
                snprintf(text,20,"\002GF%u/%u",logbookHeader.gfLow_or_Vpm_conservatism,logbookHeader.gfHigh);
                break;
        case VPM_MODE:
                snprintf(text,20,"\002VPM +%u",logbookHeader.gfLow_or_Vpm_conservatism);
                break;
        }
        Gfx_write_label_var(hgfx, 600, 729,60, &FontT42,CLUT_GasSensor1,text);
    }

    //Write Dive Time
    int minutes = logbookHeader.diveTimeMinutes;
    int seconds = logbookHeader.diveTimeSeconds;
    int hours = minutes/60;
    minutes -= hours * 60;
    snprintf(text,20,"%02i:%02i:%02i",hours,minutes,seconds);
    Gfx_write_label_var(hgfx, 30, 250,360, &FontT42,CLUT_GasSensor1,text);
    Gfx_write_label_var(hgfx, 200, 250,360, &FontT42,CLUT_GasSensor4,"s");

    // Max Depth
    int maxdepth =logbookHeader.maxDepth/100;
    int maxdepth_dcm = logbookHeader.maxDepth/10 - maxdepth * 10;
    int top = 150;
    if(settingsGetPointer()->nonMetricalSystem)
    {
        float maxDepthFeet = 0;
        maxDepthFeet = unit_depth_float(((float)logbookHeader.maxDepth)/100);
        snprintf(text,20,"%.0f",maxDepthFeet);
    }
    else
    {
        snprintf(text,20,"%i.%i",maxdepth,maxdepth_dcm);
    }
    Gfx_write_label_var(hgfx, 30, 250,top, &FontT42,CLUT_GasSensor1,text);
    winsmal.left = 30;
    winsmal.top = top -3;
    winsmal.bottom = winsmal.top + FontT42.height;

    if(maxdepth < 10)
    {
        winsmal.left  = 137;
    }
    else if(maxdepth < 100)
    {
        winsmal.left  = 151;
    }
    else
    {
        winsmal.left  = 147;
    }
    winsmal.right = winsmal.left + 50;

    Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,top, &FontT24,CLUT_GasSensor4,"max");
    snprintf(text,3,"%c%c"
        , unit_depth_char1()
        , unit_depth_char2()
    );
    Gfx_write_label_var(hgfx, winsmal.left - 37, 250,top, &FontT42,CLUT_GasSensor4,text);

    // Average Depth
    int avrdepth =logbookHeader.averageDepth_mbar/100;
    int avrdepth_dcm = logbookHeader.averageDepth_mbar/10 - avrdepth * 10;
    top = 200;
    if(settingsGetPointer()->nonMetricalSystem)
    {
        float avgDepthFeet = 0;
        avgDepthFeet = unit_depth_float(((float)logbookHeader.averageDepth_mbar)/100);
        snprintf(text,20,"%.0f",avgDepthFeet);
    }
    else
    {
        snprintf(text,20,"%i.%i",avrdepth,avrdepth_dcm);
    }
    Gfx_write_label_var(hgfx, 30, 250,top, &FontT42,CLUT_GasSensor1,text);

    winsmal.left = 30;
    winsmal.top = top -3;
    winsmal.bottom = winsmal.top + FontT42.height;

/* put avg behind previous string */
    if(avrdepth < 10)
    {
        winsmal.left  = 137                               ;
    }
    else if(avrdepth < 100)
    {
        winsmal.left  = 151;
    }
    else
    {
        winsmal.left  = 147;
    }
    winsmal.right = winsmal.left + 50;

    Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,CLUT_GasSensor4,"avg");
    snprintf(text,3,"%c%c"
        , unit_depth_char1()
        , unit_depth_char2()
    );
    Gfx_write_label_var(hgfx, winsmal.left - 37, 250,top, &FontT42,CLUT_GasSensor4,text);
    // Temperature
    top+= 50;
    float temp_Temperature;
    uint16_t start;
    temp_Temperature = ((float)logbookHeader.minTemp)/10;
    snprintf(text,20,"%.1f",unit_temperature_float(temp_Temperature));
    Gfx_write_label_var(hgfx, 30, 250,top, &FontT42,CLUT_GasSensor1,text);

    if(settingsGetPointer()->nonMetricalSystem)
        start = 121;
    else if((logbookHeader.minTemp >= 0) && (logbookHeader.minTemp < 10))
        start = 100;
    else if((logbookHeader.minTemp >= -10) && (logbookHeader.minTemp < 100))
        start = 114;
    else
        start = 121;

    text[0] = '\140';
    if(settingsGetPointer()->nonMetricalSystem)
        text[1] = 'F';
    else
        text[1] = 'C';
    text[2] = 0;

    Gfx_write_label_var(hgfx, start, 300,top, &FontT42,CLUT_GasSensor4,text);

    // CNS
    snprintf(text,20,"CNS: %i %%",logbookHeader.maxCNS);
    Gfx_write_label_var(hgfx, 30, 250,440, &FontT42,CLUT_GasSensor1,text);

// Surface Pressure
//		snprintf(text,20,"\001%i\016\016 mbar",logbookHeader.surfacePressure_mbar);
//		Gfx_write_label_var(hgfx,300,500,750, &FontT42,CLUT_GasSensor1,text);
//		snprintf(text,40,"%i\016\016 mbar\017  (%i\016\016 m\017)",logbookHeader.surfacePressure_mbar, unit_SeaLevelRelation_integer(logbookHeader.surfacePressure_mbar));
    snprintf(text,40,"%i\016\016 hPa\017",logbookHeader.surfacePressure_mbar);
    Gfx_write_label_var(hgfx,320,600,440, &FontT42,CLUT_GasSensor1,text);


    //--- print coordinate system & depth graph with gaschanges ---
    wintemp.left 	= 330;
    wintemp.top	=  160;
    wintemp.bottom -= 40;

    show_logbook_draw_depth_graph(hgfx, StepBackwards, &wintemp, 1, dataLength, depthdata, gasdata, NULL);
}


static void show_logbook_logbook_show_log_page2(GFX_DrawCfgScreen *hgfx, uint8_t StepBackwards)
{
    //*** Page2: Depth and Temperature ****

    SWindowGimpStyle wintemp;
    SWindowGimpStyle winsmal;
    wintemp.left = 50;
    wintemp.right = 799 - wintemp.left;
    wintemp.top = 50;
    wintemp.bottom = 479 - 40;

    SLogbookHeader logbookHeader;

    logbook_getHeader(StepBackwards,&logbookHeader);
    uint16_t dataLength = 0;
    uint16_t depthdata[1000];
    uint8_t  gasdata[1000];
    int16_t  tempdata[1000];
    uint16_t decoDepthdata[1000];
    uint16_t *pDecoDepthData = 0;

    dataLength = logbook_readSampleData(StepBackwards, 1000, depthdata,gasdata, tempdata, NULL, NULL, NULL, NULL, NULL, NULL, NULL, decoDepthdata);

        for(int i = 0; i<dataLength; i++)
        {
            if(decoDepthdata[i] >= 300)
            {
                pDecoDepthData = decoDepthdata;
                break;
            }
        }
    //--- print coordinate system & depth graph ---
    show_logbook_draw_depth_graph(hgfx, StepBackwards, &wintemp, 0, dataLength, depthdata, gasdata, pDecoDepthData);

    //*** Temperature *************************************************

    //--- print temperature labels ---
    // input maxtmpline, tmpstep, deltaline

    winsmal.left = wintemp.right +6;
    winsmal.top	= wintemp.top - 3;
    winsmal.right =  wintemp.right + 30;
    winsmal.bottom = winsmal.top + 16;

    Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,CLUT_LogbookTemperature,"[C]");

    int16_t minVal = 0;
    int16_t maxVal = 0;
    int newTop = 0;
    int newBottom = 0;
    uint16_t step = 0;
    int16_t maxValTop = 0;

    scaleHelper(dataLength, tempdata, wintemp.top, wintemp.bottom,
                            &minVal, &maxVal, &newTop, &newBottom,
                            &step, &maxValTop); // newTop is wintemp.top

    scaleAdapt(	wintemp.top, wintemp.bottom,
                            &minVal, &maxVal, &newTop, &newBottom,
                            &step, &maxValTop);

    // temperature in 1/10 �C
    int deltaline = (1 + wintemp.bottom - wintemp.top)/5;
    char msg[3];
    int tmp = maxValTop;
    for(int i = 1; i<=5; i++)
    {
        tmp -= 	step;
        //if(tmp < 0)
            //break;
        winsmal.top	= wintemp.top + deltaline * i - 14;
        winsmal.bottom = winsmal.top + 16;
        if((tmp >= 0) && (tmp < 100))
            snprintf(msg,2,"%1i",tmp);
        else
            snprintf(msg,3,"%2i",tmp);
        Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,CLUT_LogbookTemperature,msg);
    }


    //--- print temperature graph ---
    // input tempdata[i], maxtmpline, mintmpline, maxTmp, minTmp, deltaline, wintemp.top, dataLength, datamax,

    //adapt window
    wintemp.bottom = newBottom;
    wintemp.top = newTop;
    GFX_graph_print(hgfx,&wintemp,0,1,maxVal,minVal, (uint16_t *)tempdata,dataLength,CLUT_LogbookTemperature, NULL);
}


static void build_logbook_test(uint8_t page, uint8_t StepBackwards)
{
    uint32_t lastScreen,lastBackground;

    lastScreen = tLOGscreen.FBStartAdress;
    lastBackground = tLOGbackground.FBStartAdress;

    tLOGscreen.FBStartAdress = getFrame(16);
    tLOGscreen.ImageHeight = 480;
    tLOGscreen.ImageWidth = 800;
    tLOGscreen.LayerIndex = 1;

    tLOGbackground.FBStartAdress = getFrame(17);
    tLOGbackground.ImageHeight = 480;
    tLOGbackground.ImageWidth = 800;
    tLOGbackground.LayerIndex = 0;
    switch(page)
    {
    case 1:
        show_logbook_logbook_show_log_page1(&tLOGscreen,StepBackwards);
        break;
    case 2:
        show_logbook_logbook_show_log_page2(&tLOGscreen,StepBackwards);
        break;
    case 3:
        show_logbook_logbook_show_log_page3(&tLOGscreen,StepBackwards);
        break;
    case 4:
        show_logbook_logbook_show_log_page4(&tLOGscreen,StepBackwards);
        break;
    }

    releaseFrame(16,lastScreen);
    releaseFrame(17,lastBackground);
}


void show_logbook_test(_Bool firstPage, uint8_t StepBackwards)
{
    static uint8_t page = 1;
    if(firstPage)
    {
            page = 1;
    }
    else
    {
            page++;
            if(page > 4)
                    page = 1;
    }

    build_logbook_test(page,StepBackwards);
//	GFX_ResetLayer(TOP_LAYER);
//	GFX_ResetLayer(BACKGRD_LAYER);

    set_globalState(StILOGSHOW);
    GFX_SetFramesTopBottom(tLOGscreen.FBStartAdress, tLOGbackground.FBStartAdress,480);
}


void show_logbook_exit(void)
{
    releaseFrame(16,tLOGscreen.FBStartAdress);
    releaseFrame(17,tLOGbackground.FBStartAdress);
}


static void show_logbook_logbook_show_log_page3(GFX_DrawCfgScreen *hgfx, uint8_t StepBackwards)
{
    SWindowGimpStyle wintemp;
    SWindowGimpStyle winsmal;
    wintemp.left = 50;
    wintemp.right = 799 - wintemp.left;
    wintemp.top = 50;
    wintemp.bottom = 479 - 40;

    SLogbookHeader logbookHeader;

    logbook_getHeader(StepBackwards, &logbookHeader);
    uint16_t dataLength = 0;
    uint16_t depthdata[1000];
    uint8_t  gasdata[1000];
    dataLength = logbook_readSampleData(StepBackwards, 1000, depthdata,gasdata, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);

    //--- print coordinate system & depth graph with gaschanges ---
    show_logbook_draw_depth_graph(hgfx, StepBackwards, &wintemp, 1, dataLength, depthdata, gasdata, NULL);

    //--- print gas list ---
    winsmal.left = wintemp.right - 190;
    winsmal.right =  winsmal.left + 150;

    char msg[15];
    char gas_name[15];
    int j = 0;
    for(int i = 4;i >= 0;i--)
    {
        if(logbookHeader.gasordil[i].note.ub.active > 0)
        {
            j++;
            winsmal.top	= wintemp.bottom - 5 - j * 26 ;
            winsmal.bottom = winsmal.top + 21  ;
            uint8_t color = get_colour(i);

            print_gas_name(gas_name,15,logbookHeader.gasordil[i].oxygen_percentage,logbookHeader.gasordil[i].helium_percentage);
            snprintf(msg,15,"G%i: %s",i + 1, gas_name);
            //msg[10] = 0;
            Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,color,msg);
        }
    }

    //--- define buttons ---
    /*if(*ghost_char_logfile_oxydata)
        button_start_single_action(surf1_menu_logbook_current_page, surf1_menu_logbook_show_log_page4, surf1_menu_logbook_show_log_next);
    else
        button_start_single_action(surf1_menu_logbook_current_page, surf1_menu_logbook_show_log_page1, surf1_menu_logbook_show_log_next);
        */
}

static void show_logbook_logbook_show_log_page4(GFX_DrawCfgScreen *hgfx, uint8_t StepBackwards)
{ SWindowGimpStyle wintemp;
    SWindowGimpStyle winsmal;
    wintemp.left = 50;
    wintemp.right = 799 - wintemp.left;
    wintemp.top = 50;
    wintemp.bottom = 479 - 40;
    uint8_t color = 0;
    SLogbookHeader logbookHeader;

    logbook_getHeader(StepBackwards, &logbookHeader);
    uint16_t dataLength = 0;
    uint16_t depthdata[1000];
    uint8_t  gasdata[1000];
    uint16_t ppO2data[1000];
    uint16_t sensor2[1000];
    uint16_t sensor3[1000];
        uint16_t *setpoint = ppO2data;
        uint16_t *sensor1 = ppO2data;


        if(logbookHeader.diveMode != DIVEMODE_CCR)
            dataLength = logbook_readSampleData(StepBackwards, 1000, depthdata,gasdata, NULL, ppO2data, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
        else
        {
            if(logbookHeader.CCRmode == CCRMODE_FixedSetpoint)
                dataLength = logbook_readSampleData(StepBackwards, 1000, depthdata, gasdata, NULL, NULL, setpoint, NULL, NULL, NULL, NULL, NULL, NULL);
            else
                dataLength = logbook_readSampleData(StepBackwards, 1000, depthdata, gasdata, NULL, NULL, NULL, sensor1, sensor2, sensor3, NULL, NULL, NULL);
        }


    //--- print coordinate system & depth graph with bailout---
    show_logbook_draw_depth_graph(hgfx, StepBackwards, &wintemp, 0, dataLength, depthdata, gasdata, NULL);



    //*** Desciption at bottom of page ***************************
    winsmal.top	= wintemp.bottom +2 ;
    winsmal.bottom = winsmal.top + 16;


    /*if(strcmp( (char*)ghost_char_logfile_text_oc_ccr,"ccr/bailout") == 0)
    {
        winsmal.left = wintemp.left + 2;
        winsmal.right =  winsmal.left + 55;

        oled_write(OVERLAY, &winsmal,"CCR -",false,true);

        winsmal.left = winsmal.right;
        winsmal.right =  winsmal.left + 90;
        //winsmal.fontcolor = oled_get_colour(15);
        oled_write(OVERLAY, &winsmal,"bailout",false,true);
    }
    else*/
    {
        winsmal.left = wintemp.left + 2;
        winsmal.right =  winsmal.left + 55;
         color = CLUT_GasSensor1;//LOGBOOK_GRAPH_DEPTH;

         Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,color,"depth");

    }
    winsmal.left = 799 - 67;//wintemp.right -67;
    winsmal.right = winsmal.left;// + 45;

    color = CLUT_LogbookTemperature;//LOGBOOK_GRAPH_DEPTH;
    if(logbookHeader.diveMode != DIVEMODE_CCR)
    	Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,color,"\002PP O2");
    else
    if(logbookHeader.CCRmode != CCRMODE_Sensors)
    	Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,color,"\002SETPOINT");
    else
    	Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,color,"\002SENSORS");

    //*** PP O2 ****************************************************
    //calc lines and labels
    int datamax = 0;
    int datamin = 10000;
    for(int i=1;i<dataLength;i++)
    {
        if(ppO2data[i]>datamax)
            datamax = ppO2data[i];
        if(ppO2data[i]<datamin)
            datamin = ppO2data[i];
    }
    if((logbookHeader.diveMode == DIVEMODE_CCR) && (logbookHeader.CCRmode == CCRMODE_Sensors))
    {
        for(int i=1;i<dataLength;i++)
        {
            if(sensor2[i]>datamax)
                datamax = sensor2[i];
            if(sensor2[i]<datamin)
                datamin = sensor2[i];
            if(sensor3[i]>datamax)
                datamax = sensor3[i];
            if(sensor3[i]<datamin)
                datamin = sensor3[i];
        }
    }
    float maxoxy = ((float)datamax)/100;
    float minoxy =  ((float)datamin)/100;
    float oxystep = 0.5;
    float maxoxyline = 2.5;

    //--- print PP O2 labels ----
    winsmal.left = wintemp.right + 2;
    winsmal.top	= wintemp.top ;
    winsmal.right =  wintemp.right + 30;
    winsmal.bottom = winsmal.top + 16;
    //winsmal.font = ft_tiny + ft_SLIM;
    color = CLUT_LogbookTemperature;// = LOGBOOK_GRAPH_TEMP;

    Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,color,"bar");

    int deltaline = (wintemp.bottom - wintemp.top)/5;
    char msg[4];
    float oxy = maxoxyline;
    for(int i = 1; i<=5; i++)
    {
        oxy -= 	oxystep;
        if(oxy < 0)
            break;
        winsmal.top	= wintemp.top + deltaline * i - 8;
        winsmal.bottom = winsmal.top + 16;
        snprintf(msg,4,"%1.1f",oxy);
        Gfx_write_label_var(hgfx, winsmal.left, winsmal.right,winsmal.top, &FontT24,color,msg);
        //oled_write(OVERLAY, &winsmal,msg,false,true);
    }

    //--- print PP O2 graph ---
    //Adapt window
    float ftmp = ((maxoxyline - minoxy) * deltaline) /oxystep + wintemp.top;
    wintemp.bottom = ftmp;
    if((ftmp - (int)ftmp) >= 0.5f)
        wintemp.bottom++;

    ftmp = wintemp.top + ((maxoxyline - maxoxy) * deltaline) /oxystep;
    wintemp.top = ftmp;
    if((ftmp - (int)ftmp) >= 0.5f)
        wintemp.top++;
    wintemp.top = MaxU32LOG(wintemp.top ,0);
    if(wintemp.top < wintemp.bottom)
    {
        if((logbookHeader.diveMode == DIVEMODE_CCR) && (logbookHeader.CCRmode == CCRMODE_Sensors))
        {
            GFX_graph_print(hgfx,&wintemp,0,1,datamax,datamin, ppO2data,dataLength,CLUT_LogbookTemperature, NULL);
            GFX_graph_print(hgfx,&wintemp,0,1,datamax,datamin, sensor2,dataLength,CLUT_LogbookTemperature, NULL);
            GFX_graph_print(hgfx,&wintemp,0,1,datamax,datamin, sensor3,dataLength,CLUT_LogbookTemperature, NULL);
        }
        else
            GFX_graph_print(hgfx,&wintemp,0,1,datamax,datamin, ppO2data,dataLength,CLUT_LogbookTemperature, NULL);
    }
    else
    {
        point_t startPoint, stopPoint;
        startPoint.x = wintemp.left;
        stopPoint.x = wintemp.right;
        stopPoint.y = startPoint.y = 479 - wintemp.top;
        GFX_draw_colorline(hgfx, startPoint, stopPoint, CLUT_LogbookTemperature);
    }

    //--- define buttons ---
    //button_start_single_action(surf1_menu_logbook_current_page, surf1_menu_logbook_show_log_page1, surf1_menu_logbook_show_log_next);
}

static void print_gas_name(char* output,uint8_t length,uint8_t oxygen,uint8_t helium)
{
    if(helium == 0)
    {
        if(oxygen == 21)
            snprintf(output, length, "Air");
        else if(oxygen == 100)
            snprintf(output, length, "Oxy");
        else
            snprintf(output, length, "NX%i",oxygen);
    }
    else
        {
                if((oxygen + helium) == 100)
            snprintf(output, length, "HX%i",oxygen);
                else
                        snprintf(output, length, "TMX%i/%i", oxygen, helium);
        }

}

static int16_t get_colour(int16_t color)
{
     return CLUT_GasSensor1 + color;
}