916 lines
25 KiB
C
916 lines
25 KiB
C
/* CHRTOPT.C - Options module for presentation graphics demonstration
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* program.
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*/
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#include <stdio.h>
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#include <conio.h>
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#include <string.h>
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#include <graph.h>
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#include <pgchart.h>
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#include "chrtdemo.h"
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/* Structures for system configuration and chart environment. */
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extern struct videoconfig vc;
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extern chartenv ce;
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/* Variable used to track control and screen position. */
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extern struct SCREENINFO si;
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/* Colors of menus and prompts. */
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extern struct tagColor co;
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/* Arrays of strings used by the Menu function. The first string is the
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* menu title. The next non-null strings are the menu selections. A null
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* string indicates the end of the list.
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*/
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char *pszAxes[] =
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{ "Axis", "X Axis", "Y Axis", "" };
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char *pszAxis[] =
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{ "? Options", "Grid", "Axis Title", "Color",
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"Range Type", "Scale", "Tic Marks", "" };
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char *pszAuto[] =
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{ "Auto", "Auto", "Manual", "" };
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char *pszBorder[] =
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{ "Type", "Color", "Style", "" };
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char *pszChartWindow[] =
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{ "Chart", "Size", "Color (Background)", "Border", "" };
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char *pszDataWindow[] =
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{ "Data", "Color (Background)", "Border", "" };
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char * pszFontOpt[] =
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{ "Font Options", "Change Typeface", "Set Character Size", "" };
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char *pszJustify[] =
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{ "Justify", "Left", "Center", "Right", "" };
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char *pszLegendWindow[] =
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{ "Options", "Place", "Text Color", "Size", "Color (Background)",
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"Border", "" };
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char *pszPlace[] =
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{ "Place", "Right", "Bottom", "Overlay", "" };
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char *pszScale[] =
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{ "Scale", "Low (Min)", "High (Max)", "Scale Factor", "Title", "" };
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char *pszSize[] =
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{ "Size", "Top", "Left", "Bottom", "Right", "" };
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char *pszTic[] =
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{ "Tic Type", "Interval", "Format", "Decimals", "" };
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char *pszTitleOpt[] =
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{ "", "Text", "Color", "Justify", "" };
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char *pszTitles[] =
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{ "Title", "Main Title", "Sub Title", "" };
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char *pszTypeface[] =
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{ "Type Faces", "Courier", "Helv", "Tms Rmn", "Modern", "Script",
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"Roman", "None", "" };
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char *pszWindows[] =
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{ "Window", "Chart Window", "Data Window", "" };
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/* Axes - Selects X or Y axis.
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*
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* Params: none
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*/
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void Axes()
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{
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int iChoice;
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static axistype *patAxis[2] = { &ce.xaxis, &ce.yaxis };
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/* Get menu choice and call appropriate axis Menu. */
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PushTitle( pszAxes[0] );
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Help( "Choose 'X' or 'Y' Axis", co.InputColor );
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while( (iChoice = Menu( pszAxes )) != ESCAPE )
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{
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/* Modify axis title, depending on choice. */
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pszAxis[0][0] = (--iChoice == 0) ? 'X' : 'Y';
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/* Obtain axis information for appropriate axis. */
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Axis( patAxis[iChoice] );
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}
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PopTitle();
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}
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/* Axis - Selects axis options.
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*
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* Params: pat - Pointer to axistype variable
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*/
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void Axis( axistype *pat )
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{
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int iChoice;
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PushTitle( pszAxis[0] );
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while( (iChoice = Menu( pszAxis )) != ESCAPE )
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{
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/* Get Axis option. */
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switch( iChoice )
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{
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case 1:
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/* Grid or not? */
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iChoice = BlankMenu( "Grid", "Grid", "No Grid" );
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switch( iChoice )
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{
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case 1:
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/* If yes, set grid flag and get the grid style. */
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pat->grid = TRUE;
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Help( "Enter a number in the range 0-10.",
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co.InputColor );
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pat->gridstyle =
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InputInt( "Grid Style? ", pat->gridstyle, 0, 10 );
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break;
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case 2:
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/* If no, clear grid flag. */
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pat->grid = FALSE;
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}
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PopTitle();
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break;
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case 2:
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/* Select axis title options. */
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pszTitleOpt[0] = "Axis Title";
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TitleOpt( &pat->axistitle );
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break;
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case 3:
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/* Select color. */
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Help( "Enter a number in the range 0-15.", co.InputColor );
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pat->axiscolor =
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InputInt( "Axis Color? ", pat->axiscolor, 0, 15 );
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break;
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case 4:
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/* Get the axis range. */
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AxisRange( pat );
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break;
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case 5:
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/* Get the axis scale. */
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AxisScale( pat );
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break;
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case 6:
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/* Get axis tic mark options. */
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AxisTics( pat );
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break;
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}
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}
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PopTitle();
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}
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/* AxisRange - Selects range for an axis.
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*
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* Params: pat - pointer to axistype variable
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*/
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void AxisRange( axistype *pat )
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{
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int iChoice;
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iChoice = BlankMenu( "Range Type", "Normal", "Log" );
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switch( iChoice )
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{
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case 1:
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/* Set range type to linear. */
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pat->rangetype = _PG_LINEARAXIS;
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break;
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case 2:
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/* Set range type to log, then query for log base. */
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pat->rangetype = _PG_LOGAXIS;
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Help( "Enter a value greater than or equal 2.", co.InputColor );
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pat->logbase = (float)InputInt( "Log base? ",
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(int)pat->logbase, 2, 0 );
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break;
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}
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PopTitle();
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}
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/* AxisScale - Selects scale options for an axis.
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*
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* Params: pat - pointer to axistype variable
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*/
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void AxisScale( axistype *pat )
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{
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int iChoice;
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PushTitle( pszAuto[0] );
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iChoice = Menu( pszAuto );
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switch( iChoice )
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{
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case 1:
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/* Set AutoScale flag. */
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pat->autoscale = TRUE;
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break;
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case 2:
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/* Clear AutoScale flag and get scale options. */
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pat->autoscale = FALSE;
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PushTitle( pszScale[0] );
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while( (iChoice = Menu( pszScale )) != ESCAPE )
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{
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switch( iChoice )
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{
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case 1:
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/* Query for scale minimum. */
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Help( "Enter the range minimum value.", co.InputColor );
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pat->scalemin =
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(float)InputInt( "Minimum? ",
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(int)pat->scalemin, 1, 0 );
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break;
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case 2:
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/* Query for scale maximum. */
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Help( "Enter the range maximum value.", co.InputColor );
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pat->scalemin =
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(float)InputInt( "Minimum? ",
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(int)pat->scalemin, 1, 0 );
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break;
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case 3:
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/* Query for scale factor. */
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Help( "Enter scale factor (must be 1 or greater).",
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co.InputColor );
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pat->scalefactor =
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(float)InputInt( "Scale Factor? ",
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(int)pat->scalefactor, 1, 0 );
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break;
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case 4:
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/* Modify scale title, then use menu to get
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* title options.
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*/
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pszTitleOpt[0] = "Scale Title";
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TitleOpt( &pat->scaletitle );
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}
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}
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PopTitle();
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}
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PopTitle();
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}
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/* AxisTics - Selects tic options for an axis.
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*
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* Params: pat - pointer to axistype variable
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*/
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void AxisTics( axistype *pat )
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{
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int iChoice;
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PushTitle( pszTic[0] );
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while( (iChoice = Menu( pszTic )) != ESCAPE )
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{
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switch( iChoice )
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{
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case 1:
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/* Query for tic interval. */
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Help( "Enter distance in data units.", co.InputColor );
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pat->ticinterval =
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InputFloat( "Distance between tic marks? ",
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pat->ticinterval );
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pat->autoscale = FALSE;
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break;
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case 2:
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/* Query for tic format. */
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iChoice = BlankMenu( "Tic Format", "Normal", "Log" );
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if( iChoice != ESCAPE )
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pat->ticformat = iChoice;
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break;
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case 3:
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/* Query for number of decimal places per tic. */
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pat->ticdecimals =
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InputInt( "Enter decimal places (0 to 9). ",
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pat->ticdecimals, 0, 9 );
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pat->autoscale = FALSE;
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break;
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}
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}
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PopTitle();
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}
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/* Border - Specifies border information for a window.
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*
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* Params: pwt - Pointer to windowtype variable
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*/
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void Border( windowtype *pwt )
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{
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int iChoice;
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/* Ask whether a border is wanted. */
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iChoice = BlankMenu( "Border", "Border", "No Border" );
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switch( iChoice )
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{
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case 1:
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/* If border, set Border flag and query for border options. */
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pwt->border= TRUE;
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PushTitle( pszBorder[0] );
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while( (iChoice = Menu( pszBorder )) != ESCAPE )
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{
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switch( iChoice )
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{
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case 1:
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/* Query for border color. */
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Help( "Enter a color in the range 0-15.",
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co.InputColor );
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pwt->bordercolor =
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InputInt( "Border color? ",
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pwt->bordercolor, 0, 15 );
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break;
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case 2:
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/* Query for border style. */
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Help( "Enter a style in the range 0-10.", co.InputColor );
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pwt->borderstyle =
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InputInt( "Border style? ",
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pwt->borderstyle, 0, 10 );
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}
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}
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PopTitle();
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break;
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case 2:
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/* If no border, clear Border flag. */
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pwt->border= FALSE;
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}
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PopTitle();
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}
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/* ChangeTypeface - Allow the user to specify a new type face.
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*
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* Params: iFaceIndex - index of last typeface
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*
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* Return: index of new typeface
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*/
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int ChangeTypeface( int iFaceIndex )
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{
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int iChoice;
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/* Get menu choice and call appropriate axis Menu. */
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PushTitle( pszFontOpt[0] );
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Help( "Choose one of the type faces listed.", co.InputColor );
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if( (iChoice = Menu( pszTypeface ) - 1) != ESCAPE )
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{
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/* If the user wants the system font, unregister the other fonts. */
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if( iChoice == NOFONT )
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_unregisterfonts();
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/* If the user wants any font but the system font, make sure the
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* fonts are registered.
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*/
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else
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{
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/* If last face was NOFONT, register fonts. */
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if( iFaceIndex == NOFONT )
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{
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/* Assumes font files are in current directory.
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* Could be enhanced to handle any directory.
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*/
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if( _registerfonts( "*.FON" ) < 0 )
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ErrorMsg( "Font files must be in current directory" );
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else
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iFaceIndex = iChoice;
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}
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else
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iFaceIndex = iChoice;
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}
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}
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PopTitle();
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return iFaceIndex;
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}
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/* ChooseFont - Chooses a font from the font library.
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*
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* Params: WhichFont - A member of the set [COURIER, HELV, TMS_RMN,
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* MODERN, SCRIPT, ROMAN, NOFONT]
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* Height - The desired height of the text (in pixels)
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*/
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void ChooseFont( int WhichFont, int Height )
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{
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static char *FontIds[] =
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{
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"courier", "helv", "tms rmn", "modern", "script", "roman"
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};
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char SetCommand[30];
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/* Construct the command to send to _setfont. */
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sprintf( SetCommand, "t'%s'h%dw0b", FontIds[WhichFont], Height );
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if( _setfont( SetCommand ) < 0 )
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{
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_outtext( "Could not set. Try different font or size" );
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getch();
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}
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}
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/* ChartWindow - Gets chart window information.
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*
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* Params: None
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*/
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void ChartWindow()
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{
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int iChoice;
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PushTitle( pszChartWindow[0] );
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while( (iChoice = Menu( pszChartWindow )) != ESCAPE )
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{
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/* Get window options. */
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switch( iChoice )
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{
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case 1:
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/* Get window size. */
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WindowSize( &ce.chartwindow );
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break;
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case 2:
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/* Query for background color. */
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Help( "Enter a number in the range 0-15", co.InputColor );
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ce.chartwindow.background =
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InputInt( "Background Color? ", ce.chartwindow.background,
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0, 15 );
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break;
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case 3:
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/* Get border options. */
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Border( &ce.chartwindow );
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}
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}
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PopTitle();
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}
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/* DataWindow - Geta data window information.
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*
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* Params: None
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*/
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void DataWindow()
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{
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int iChoice;
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PushTitle( pszDataWindow[0] );
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while( (iChoice = Menu( pszDataWindow )) != ESCAPE )
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{
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/* Get data window menu options. */
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switch( iChoice )
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{
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case 1:
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/* Query for background color. */
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Help( "Enter a number in the range 0-15", co.InputColor );
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ce.datawindow.background =
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InputInt( "Background Color? ",
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ce.datawindow.background,
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0, 15 );
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break;
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case 2:
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/* Get border options. */
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Border( &ce.datawindow );
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break;
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}
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}
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PopTitle();
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}
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/* FontOptions - Allows the user to modify the font used for display.
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*
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* Params: None
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*/
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void FontOptions()
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{
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int iChoice;
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static int iFaceIndex = NOFONT;
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static int iTypeSize = 8;
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/* Get menu choice and call appropriate axis Menu. */
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PushTitle( pszFontOpt[0] );
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while( (iChoice = Menu( pszFontOpt )) != ESCAPE )
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{
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switch( iChoice )
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{
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/* Change Typeface. */
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case 1:
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iFaceIndex = ChangeTypeface( iFaceIndex );
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ChooseFont( iFaceIndex, iTypeSize );
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break;
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/* Change Type Size. */
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case 2:
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if( iFaceIndex == NOFONT )
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{
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ErrorMsg( "Select a font first" );
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break;
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}
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iTypeSize = InputInt( "Enter a type size. ", iTypeSize,
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8, 128 );
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ChooseFont( iFaceIndex, iTypeSize );
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break;
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default:
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break;
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}
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}
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PopTitle();
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}
|
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|
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/* Justify - Gets title justification option.
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*
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* Params: Pointer to titletype variable
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*/
|
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void Justify( titletype *ptt )
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{
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int iChoice;
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PushTitle( pszJustify[0] );
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iChoice = Menu( pszJustify );
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switch( iChoice )
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{
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/* Set justification. */
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case 1:
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case 2:
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case 3:
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ptt->justify = iChoice;
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}
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PopTitle();
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}
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|
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/* Legend - Asks whether a legend is desired, and if so, gets
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* legend options.
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*
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* Params: None
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|
*/
|
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void Legend()
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{
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int iChoice;
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|
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/* Is legend desired? */
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iChoice = BlankMenu( "Legend", "Legend", "No Legend" );
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switch( iChoice )
|
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{
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case 1:
|
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/* If legend, set legend flag and get options. */
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ce.legend.legend = TRUE;
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PushTitle( pszLegendWindow[0] );
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do
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{
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iChoice = Menu( pszLegendWindow );
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switch( iChoice )
|
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{
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|
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case 1:
|
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/* Get legend place. */
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LegendPlace();
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break;
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|
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case 2:
|
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/* Query for legend color. */
|
|
Help( "Enter a number in the range 0-15.", co.InputColor );
|
|
ce.legend.textcolor =
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|
InputInt( "Text color? ",
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|
ce.legend.textcolor,
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0, 15 );
|
|
break;
|
|
|
|
case 3:
|
|
/* Get auto or manual sizing. */
|
|
PushTitle( "Auto Legend" );
|
|
iChoice = Menu( pszAuto );
|
|
|
|
/* Set or clear the autosize flag. If manual
|
|
* sizing was selected, get legend size.
|
|
*/
|
|
switch( iChoice )
|
|
{
|
|
case 1:
|
|
ce.legend.autosize = TRUE;
|
|
break;
|
|
|
|
case 2:
|
|
ce.legend.autosize = FALSE;
|
|
WindowSize( &ce.legend.legendwindow );
|
|
}
|
|
PopTitle();
|
|
break;
|
|
|
|
case 4:
|
|
/* Query for background color. */
|
|
Help( "Type a number in the range 0-15.", co.InputColor );
|
|
ce.legend.legendwindow.background =
|
|
InputInt( "Background color? ",
|
|
ce.legend.legendwindow.background,
|
|
0, 15 );
|
|
break;
|
|
|
|
case 5:
|
|
/* Get border options for legend window. */
|
|
Border( &ce.legend.legendwindow );
|
|
}
|
|
|
|
} while( iChoice != ESCAPE );
|
|
PopTitle();
|
|
break;
|
|
|
|
case 2:
|
|
/* If no legend wanted, clear flag. */
|
|
ce.legend.legend = FALSE;
|
|
|
|
}
|
|
PopTitle();
|
|
}
|
|
|
|
/* LegendPlace - Gets legend placement option.
|
|
*
|
|
* Params: None
|
|
*/
|
|
void LegendPlace()
|
|
{
|
|
int iChoice;
|
|
|
|
/* Get legend placement. */
|
|
PushTitle( pszPlace[0] );
|
|
iChoice = Menu( pszPlace );
|
|
switch( iChoice )
|
|
{
|
|
|
|
case 1:
|
|
ce.legend.place = _PG_RIGHT;
|
|
break;
|
|
|
|
case 2:
|
|
ce.legend.place = _PG_BOTTOM;
|
|
break;
|
|
|
|
case 3:
|
|
ce.legend.place = _PG_OVERLAY;
|
|
}
|
|
PopTitle();
|
|
}
|
|
|
|
/* ScreenMode - Gets a new screen mode.
|
|
*
|
|
* Params: None
|
|
*/
|
|
void ScreenMode()
|
|
{
|
|
int iMode, i;
|
|
char szTmp[80], szHlp[80];
|
|
static int iLegal[5][11] =
|
|
{
|
|
{ 3, 4, 5, 6 },
|
|
{ 4, 4, 5, 6, 64 },
|
|
{ 4, 4, 5, 6, 19 },
|
|
{ 7, 4, 5, 6, 13, 14, 15, 16 },
|
|
{ 10, 4, 5, 6, 13, 14, 15, 16, 17, 18, 19 }
|
|
};
|
|
int iAdaptor;
|
|
|
|
PushTitle( "Screen Mode" );
|
|
|
|
/* Show appropriate help line for adaptor. */
|
|
switch( vc.adapter )
|
|
{
|
|
case _HGC:
|
|
PopTitle();
|
|
return;
|
|
case _CGA:
|
|
iAdaptor = 0;
|
|
break;
|
|
case _OCGA:
|
|
iAdaptor = 1;
|
|
break;
|
|
case _MCGA:
|
|
iAdaptor = 2;
|
|
break;
|
|
case _EGA:
|
|
case _OEGA:
|
|
if( vc.adapter == _MONO )
|
|
{
|
|
PopTitle();
|
|
return;
|
|
}
|
|
else
|
|
iAdaptor = 3;
|
|
break;
|
|
case _VGA:
|
|
case _OVGA:
|
|
iAdaptor = 4;
|
|
break;
|
|
}
|
|
|
|
/* Form the help line (which gives the choices legal for
|
|
* the adaptor sensed in the user's machine).
|
|
*/
|
|
for( iMode = 0, szHlp[0] = '\0'; iMode <= iLegal[iAdaptor][0]; ++iMode )
|
|
{
|
|
if( iMode == 0 )
|
|
strcpy( szTmp, "Enter " );
|
|
else if( iMode < iLegal[iAdaptor][0] )
|
|
sprintf( szTmp, "%d, ", iLegal[iAdaptor][iMode] );
|
|
else
|
|
sprintf( szTmp, "or %d", iLegal[iAdaptor][iMode] );
|
|
strcat( szHlp, szTmp );
|
|
}
|
|
|
|
WrtForm( 18 );
|
|
Help( szHlp, co.InputColor );
|
|
|
|
/* Query for screen mode. */
|
|
for( ;; )
|
|
{
|
|
iMode = InputInt( "Screen Mode? ", si.mode, 1, 64 );
|
|
for( i = 1; i <= iLegal[iAdaptor][0]; ++i ) /* Test legal values */
|
|
if( iMode == iLegal[iAdaptor][i] ) /* If a match is found */
|
|
break; /* Terminate for loop */
|
|
if( iMode == iLegal[iAdaptor][i] ) /* If it's a match, */
|
|
break; /* terminate do loop, */
|
|
else /* otherwise BEEP, and */
|
|
putchar( BEEP ); /* solicit correct data */
|
|
}
|
|
|
|
PopTitle();
|
|
if( SetGraphMode( iMode ) )
|
|
_setvideomode( _DEFAULTMODE );
|
|
else
|
|
ShowError( _PG_BADSCREENMODE );
|
|
|
|
/* Force rescaling of the chart by resetting the window
|
|
* rectangles for the chart and data windows to zero size.
|
|
*/
|
|
ce.chartwindow.x1 = ce.chartwindow.x2 = ce.chartwindow.y1 =
|
|
ce.chartwindow.y2 = 0;
|
|
ce.datawindow = ce.chartwindow;
|
|
}
|
|
|
|
/* TitleOpt - Gets title options.
|
|
*
|
|
* Params: ptt - Pointer to titletype variable
|
|
*/
|
|
void TitleOpt( titletype *ptt )
|
|
{
|
|
int iChoice;
|
|
|
|
PushTitle( pszTitleOpt[0] );
|
|
do
|
|
{
|
|
iChoice = Menu( pszTitleOpt );
|
|
switch( iChoice )
|
|
{
|
|
|
|
case 1:
|
|
/* Query for title text. */
|
|
Help( "70 characters maximum length.", co.InputColor );
|
|
InputStr( "Enter Text: ", ptt->title );
|
|
break;
|
|
|
|
case 2:
|
|
/* Query for title color color. */
|
|
Help( "Enter a number in the range 0-15.", co.InputColor );
|
|
ptt->titlecolor =
|
|
InputInt( "Title Color? ", ptt->titlecolor, 0, 15 );
|
|
break;
|
|
|
|
case 3:
|
|
/* Get justify option. */
|
|
Justify( ptt );
|
|
}
|
|
ClrHelp();
|
|
|
|
} while( iChoice != ESCAPE );
|
|
PopTitle();
|
|
}
|
|
|
|
/* Titles - Manages Main and Sub title menus.
|
|
*
|
|
* Params: None
|
|
*/
|
|
void Titles()
|
|
{
|
|
int iChoice;
|
|
|
|
PushTitle( pszTitles[0] );
|
|
do
|
|
{
|
|
iChoice = Menu( pszTitles );
|
|
switch( iChoice )
|
|
{
|
|
|
|
case 1:
|
|
/* Fix menu title and get options for main title. */
|
|
pszTitleOpt[0] = "MainTitle";
|
|
TitleOpt( &ce.maintitle );
|
|
break;
|
|
|
|
case 2:
|
|
/* Fix menu title and get options for subtitle. */
|
|
pszTitleOpt[0] = "Sub Title";
|
|
TitleOpt( &ce.subtitle );
|
|
}
|
|
} while( iChoice != ESCAPE );
|
|
PopTitle();
|
|
}
|
|
|
|
/* Windows - Selects chart or data window, and gets options for either.
|
|
*
|
|
* Params: None
|
|
*/
|
|
void Windows()
|
|
{
|
|
int iChoice;
|
|
|
|
PushTitle( pszWindows[0] );
|
|
do
|
|
{
|
|
|
|
/* Select window and get options for it. */
|
|
iChoice = Menu( pszWindows );
|
|
switch( iChoice )
|
|
{
|
|
|
|
case 1:
|
|
ChartWindow();
|
|
break;
|
|
|
|
case 2:
|
|
DataWindow();
|
|
|
|
}
|
|
} while( iChoice != ESCAPE );
|
|
PopTitle();
|
|
}
|
|
|
|
/* WindowSize - Gets coordinates for window location and size.
|
|
*
|
|
* Params: pwt - pointer to windowtype variable
|
|
*/
|
|
void WindowSize( windowtype *pwt )
|
|
{
|
|
int iChoice;
|
|
|
|
/* Get window size settings. */
|
|
PushTitle( pszSize[0] );
|
|
do
|
|
{
|
|
/* Query for top, bottom, left, or right of window. */
|
|
iChoice = Menu( pszSize );
|
|
switch( iChoice )
|
|
{
|
|
|
|
case 1:
|
|
Help( "Enter window top in pixels.", co.InputColor );
|
|
pwt->y1 = InputInt( "Top? ", pwt->y1, 0, si.yMax );
|
|
break;
|
|
|
|
case 2:
|
|
Help( "Enter window Left in pixels.", co.InputColor );
|
|
pwt->x1 = InputInt( "Left? ", pwt->x1, 0, si.xMax );
|
|
break;
|
|
|
|
case 3:
|
|
Help( "Enter window bottom in pixels.", co.InputColor );
|
|
pwt->y2 = InputInt( "Bottom? ", pwt->y2, 0, si.yMax );
|
|
break;
|
|
|
|
case 4:
|
|
Help( "Enter window right in pixels.", co.InputColor );
|
|
pwt->x2 = InputInt( "Right? ", pwt->x2, 0, si.xMax );
|
|
}
|
|
} while( iChoice != ESCAPE );
|
|
PopTitle();
|
|
}
|