818 lines
18 KiB
C
818 lines
18 KiB
C
#include <cdk_int.h>
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/*
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* $Author: tom $
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* $Date: 2016/11/20 18:32:34 $
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* $Revision: 1.25 $
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*/
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/*
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* Declare file local prototypes.
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*/
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static void drawCDK<MIXED>Field (CDK<UPPER> * widget);
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DeclareCDKObjects (<UPPER>, <MIXED>, setCdk, <DTYPE>);
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/*
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* This function creates a widget.
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*/
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CDK<UPPER> *newCDK<MIXED> (CDKSCREEN *cdkscreen,
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int xplace,
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int yplace,
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const char *title,
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const char *label,
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chtype fieldAttr,
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int fieldWidth,
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<CTYPE> start,
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<CTYPE> low,
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<CTYPE> high,
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<CTYPE> inc,
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<CTYPE> fastInc,
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#if <FLOAT>
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int digits,
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#endif <FLOAT>
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boolean Box,
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boolean shadow)
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{
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/* *INDENT-EQLS* */
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CDK<UPPER> *widget = 0;
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int parentWidth = getmaxx (cdkscreen->window);
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int parentHeight = getmaxy (cdkscreen->window);
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int boxHeight;
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int boxWidth;
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int horizontalAdjust, oldWidth;
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int xpos = xplace;
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int ypos = yplace;
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int x, junk;
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/* *INDENT-OFF* */
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static const struct { int from; int to; } bindings[] = {
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{ 'u', KEY_UP },
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{ 'U', KEY_PPAGE },
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{ CDK_BACKCHAR, KEY_PPAGE },
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{ CDK_FORCHAR, KEY_NPAGE },
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{ 'g', KEY_HOME },
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{ '^', KEY_HOME },
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{ 'G', KEY_END },
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{ '$', KEY_END },
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};
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/* *INDENT-ON* */
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if ((widget = newCDKObject (CDK<UPPER>, &my_funcs)) == 0)
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return (0);
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setCDK<MIXED>Box (widget, Box);
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boxHeight = (BorderOf (widget) * 2) + 1;
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/* Set some basic values of the widget's data field. */
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widget->label = 0;
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widget->labelLen = 0;
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widget->labelWin = 0;
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/*
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* If the fieldWidth is a negative value, the fieldWidth will
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* be COLS-fieldWidth, otherwise, the fieldWidth will be the
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* given width.
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*/
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fieldWidth = setWidgetDimension (parentWidth, fieldWidth, 0);
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boxWidth = fieldWidth + 2 * BorderOf (widget);
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/* Translate the label char *pointer to a chtype pointer. */
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if (label != 0)
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{
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widget->label = char2Chtype (label, &widget->labelLen, &junk);
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boxWidth = widget->labelLen + fieldWidth + 2;
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}
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oldWidth = boxWidth;
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boxWidth = setCdkTitle (ObjOf (widget), title, boxWidth);
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horizontalAdjust = (boxWidth - oldWidth) / 2;
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boxHeight += TitleLinesOf (widget);
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/*
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* Make sure we didn't extend beyond the dimensions of the window.
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*/
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boxWidth = (boxWidth > parentWidth ? parentWidth : boxWidth);
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boxHeight = (boxHeight > parentHeight ? parentHeight : boxHeight);
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fieldWidth = (fieldWidth > (boxWidth - widget->labelLen - 2 * BorderOf (widget))
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? (boxWidth - widget->labelLen - 2 * BorderOf (widget))
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: fieldWidth);
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/* Rejustify the x and y positions if we need to. */
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alignxy (cdkscreen->window, &xpos, &ypos, boxWidth, boxHeight);
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/* Make the widget's window. */
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widget->win = newwin (boxHeight, boxWidth, ypos, xpos);
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/* Is the main window null??? */
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if (widget->win == 0)
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{
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destroyCDKObject (widget);
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return (0);
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}
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/* Create the widget's label window. */
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if (widget->label != 0)
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{
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widget->labelWin = subwin (widget->win,
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1, widget->labelLen,
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ypos + TitleLinesOf (widget) + BorderOf (widget),
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xpos + horizontalAdjust + BorderOf (widget));
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if (widget->labelWin == 0)
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{
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destroyCDKObject (widget);
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return (0);
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}
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}
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/* Create the widget's data field window. */
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widget->fieldWin = subwin (widget->win,
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1, fieldWidth,
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(ypos + TitleLinesOf (widget) + BorderOf (widget)),
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(xpos
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+ widget->labelLen
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+ horizontalAdjust
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+ BorderOf (widget)));
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if (widget->fieldWin == 0)
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{
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destroyCDKObject (widget);
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return (0);
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}
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keypad (widget->fieldWin, TRUE);
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keypad (widget->win, TRUE);
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/* *INDENT-EQLS* Create the widget's data field. */
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ScreenOf (widget) = cdkscreen;
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widget->parent = cdkscreen->window;
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widget->shadowWin = 0;
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widget->boxWidth = boxWidth;
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widget->boxHeight = boxHeight;
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widget->fieldWidth = fieldWidth;
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widget->fieldAttr = (chtype)fieldAttr;
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widget->current = low;
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widget->low = low;
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widget->high = high;
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widget->current = start;
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widget->inc = inc;
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widget->fastinc = fastInc;
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#if <FLOAT>
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widget->digits = digits;
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#endif <FLOAT>
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initExitType (widget);
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ObjOf (widget)->acceptsFocus = TRUE;
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ObjOf (widget)->inputWindow = widget->win;
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widget->shadow = shadow;
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/* Do we want a shadow??? */
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if (shadow)
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{
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widget->shadowWin = newwin (boxHeight, boxWidth, ypos + 1, xpos + 1);
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if (widget->shadowWin == 0)
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{
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destroyCDKObject (widget);
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return (0);
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}
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}
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/* Setup the key bindings. */
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for (x = 0; x < (int)SIZEOF (bindings); ++x)
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bindCDKObject (v<UPPER>,
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widget,
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(chtype) bindings[x].from,
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getcCDKBind,
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(void *)(long)bindings[x].to);
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registerCDKObject (cdkscreen, v<UPPER>, widget);
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return (widget);
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}
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/*
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* This allows the person to use the widget's data field.
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*/
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<CTYPE> activateCDK<MIXED> (CDK<UPPER> * widget, chtype *actions)
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{
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<CTYPE> ret;
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/* Draw the widget. */
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drawCDK<MIXED> (widget, ObjOf (widget)->box);
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if (actions == 0)
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{
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chtype input = 0;
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boolean functionKey;
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for (;;)
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{
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input = (chtype) getchCDKObject (ObjOf (widget), &functionKey);
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/* Inject the character into the widget. */
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ret = (<CTYPE>) injectCDK<MIXED> (widget, input);
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if (widget->exitType != vEARLY_EXIT)
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{
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return ret;
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}
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}
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}
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else
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{
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int length = chlen (actions);
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int x = 0;
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/* Inject each character one at a time. */
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for (x = 0; x < length; x++)
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{
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ret = (<CTYPE>) injectCDK<MIXED> (widget, actions[x]);
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if (widget->exitType != vEARLY_EXIT)
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{
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return ret;
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}
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}
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}
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/* Set the exit type and return. */
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setExitType (widget, 0);
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return unknown<DTYPE>;
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}
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/*
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* Check if the value lies outside the low/high range. If so, force it in.
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*/
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static void limitCurrentValue (CDK<UPPER> * widget)
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{
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if (widget->current < widget->low)
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{
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widget->current = widget->low;
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Beep ();
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}
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else if (widget->current > widget->high)
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{
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widget->current = widget->high;
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Beep ();
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}
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}
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/*
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* Move the cursor to the given edit-position.
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*/
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static int moveToEditPosition (CDK<UPPER> * widget, int newPosition)
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{
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return wmove (widget->fieldWin, 0, widget->fieldWidth - newPosition - 1);
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}
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/*
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* Check if the cursor is on a valid edit-position. This must be one of
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* the non-blank cells in the field.
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*/
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static int validEditPosition (CDK<UPPER> * widget, int newPosition)
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{
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chtype ch;
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if (newPosition <= 0 || newPosition >= widget->fieldWidth)
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return FALSE;
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if (moveToEditPosition (widget, newPosition) == ERR)
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return FALSE;
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ch = winch (widget->fieldWin);
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if (CharOf (ch) != ' ')
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return TRUE;
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if (newPosition > 1)
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{
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/* don't use recursion - only one level is wanted */
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if (moveToEditPosition (widget, newPosition - 1) == ERR)
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return FALSE;
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ch = winch (widget->fieldWin);
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return CharOf (ch) != ' ';
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}
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return FALSE;
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}
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/*
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* Set the edit position. Normally the cursor is one cell to the right of
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* the editable field. Moving it left, over the field allows the user to
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* modify cells by typing in replacement characters for the field's value.
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*/
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static void setEditPosition (CDK<UPPER> * widget, int newPosition)
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{
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if (newPosition < 0)
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{
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Beep ();
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}
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else if (newPosition == 0)
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{
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widget->fieldEdit = newPosition;
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}
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else if (validEditPosition (widget, newPosition))
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{
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widget->fieldEdit = newPosition;
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}
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else
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{
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Beep ();
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}
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}
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/*
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* Remove the character from the string at the given column, if it is blank.
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* Returns true if a change was made.
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*/
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static bool removeChar (char *string, int col)
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{
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bool result = FALSE;
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if ((col >= 0) && (string[col] != ' '))
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{
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while (string[col] != '\0')
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{
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string[col] = string[col + 1];
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++col;
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}
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result = TRUE;
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}
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return result;
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}
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/*
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* Perform an editing function for the field.
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*/
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static bool performEdit (CDK<UPPER> * widget, chtype input)
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{
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bool result = FALSE;
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bool modify = TRUE;
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int need = widget->fieldWidth;
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char *temp = (char *)malloc ((size_t) need + 2);
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char test;
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int col = need - widget->fieldEdit - 1;
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#if <FLOAT>
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double value;
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#define SCANF_FMT "%lg%c"
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#endif <FLOAT>
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#if <INT>
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<CTYPE> value;
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#define SCANF_FMT "%<PRINT>%c"
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#endif <INT>
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if (temp != 0)
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{
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int base = 0;
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wmove (widget->fieldWin, 0, base);
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winnstr (widget->fieldWin, temp, need);
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strcpy (temp + need, " ");
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if (isChar (input)) /* replace the char at the cursor */
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{
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temp[col] = (char) (input);
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}
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else if (input == KEY_BACKSPACE) /* delete the char before the cursor */
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{
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modify = removeChar (temp, col - 1);
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}
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else if (input == KEY_DC) /* delete the char at the cursor */
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{
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modify = removeChar (temp, col);
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}
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else
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{
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modify = FALSE;
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}
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if (modify
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&& sscanf (temp, SCANF_FMT, &value, &test) == 2
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&& test == ' '
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&& value >= widget->low
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&& value <= widget->high)
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{
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setCDK<MIXED>Value (widget, (<CTYPE>) value);
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result = TRUE;
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}
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free (temp);
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}
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return result;
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}
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#define Decrement(value,by) if (value - by < value) value -= by
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#define Increment(value,by) if (value + by > value) value += by
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/*
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* This function injects a single character into the widget.
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*/
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static int _injectCDK<MIXED> (CDKOBJS *object, chtype input)
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{
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CDK<UPPER> *widget = (CDK<UPPER> *) object;
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int ppReturn = 1;
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<CTYPE> ret = unknown<DTYPE>;
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bool complete = FALSE;
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/* Set the exit type. */
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setExitType (widget, 0);
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/* Draw the field. */
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drawCDK<MIXED>Field (widget);
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/* Check if there is a pre-process function to be called. */
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if (PreProcessFuncOf (widget) != 0)
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{
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/* Call the pre-process function. */
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ppReturn = PreProcessFuncOf (widget) (v<UPPER>,
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widget,
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PreProcessDataOf (widget),
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input);
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}
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/* Should we continue? */
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if (ppReturn != 0)
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{
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/* Check for a key binding. */
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if (checkCDKObjectBind (v<UPPER>, widget, input) != 0)
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{
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checkEarlyExit (widget);
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complete = TRUE;
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}
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else
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{
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switch (input)
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{
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case KEY_LEFT:
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setEditPosition (widget, widget->fieldEdit + 1);
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break;
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case KEY_RIGHT:
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setEditPosition (widget, widget->fieldEdit - 1);
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break;
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case KEY_DOWN:
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Decrement (widget->current, widget->inc);
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break;
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case KEY_UP:
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Increment (widget->current, widget->inc);
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break;
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case KEY_PPAGE:
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Increment (widget->current, widget->fastinc);
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break;
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case KEY_NPAGE:
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Decrement (widget->current, widget->fastinc);
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break;
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case KEY_HOME:
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widget->current = widget->low;
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break;
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case KEY_END:
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widget->current = widget->high;
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break;
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case KEY_TAB:
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case KEY_ENTER:
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setExitType (widget, input);
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ret = (widget->current);
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complete = TRUE;
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break;
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case KEY_ESC:
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setExitType (widget, input);
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complete = TRUE;
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break;
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case KEY_ERROR:
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setExitType (widget, input);
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complete = TRUE;
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break;
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case CDK_REFRESH:
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eraseCDKScreen (ScreenOf (widget));
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refreshCDKScreen (ScreenOf (widget));
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break;
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default:
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if (widget->fieldEdit)
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{
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if (!performEdit (widget, input))
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Beep ();
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}
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else
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{
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/*
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* The cursor is not within the editable text. Interpret
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* input as commands.
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*/
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switch (input)
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{
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case 'd':
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case '-':
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return _injectCDK<MIXED> (object, KEY_DOWN);
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case '+':
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return _injectCDK<MIXED> (object, KEY_UP);
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case 'D':
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return _injectCDK<MIXED> (object, KEY_NPAGE);
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case '0':
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return _injectCDK<MIXED> (object, KEY_HOME);
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default:
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Beep ();
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break;
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}
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}
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break;
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}
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}
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limitCurrentValue (widget);
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/* Should we call a post-process? */
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if (!complete && (PostProcessFuncOf (widget) != 0))
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{
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PostProcessFuncOf (widget) (v<UPPER>,
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widget,
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PostProcessDataOf (widget),
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input);
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}
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}
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if (!complete)
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{
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drawCDK<MIXED>Field (widget);
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setExitType (widget, 0);
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}
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ResultOf (widget).value<DTYPE> = ret;
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return (ret != unknown<DTYPE>);
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}
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/*
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* This moves the widget's data field to the given location.
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*/
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static void _moveCDK<MIXED> (CDKOBJS *object,
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int xplace,
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int yplace,
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boolean relative,
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boolean refresh_flag)
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{
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CDK<UPPER> *widget = (CDK<UPPER> *) object;
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int currentX = getbegx (widget->win);
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int currentY = getbegy (widget->win);
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int xpos = xplace;
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int ypos = yplace;
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int xdiff = 0;
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int ydiff = 0;
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/*
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* If this is a relative move, then we will adjust where we want
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* to move to.
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*/
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if (relative)
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{
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xpos = getbegx (widget->win) + xplace;
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ypos = getbegy (widget->win) + yplace;
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}
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/* Adjust the window if we need to. */
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alignxy (WindowOf (widget), &xpos, &ypos, widget->boxWidth, widget->boxHeight);
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/* Get the difference. */
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xdiff = currentX - xpos;
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ydiff = currentY - ypos;
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/* Move the window to the new location. */
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moveCursesWindow (widget->win, -xdiff, -ydiff);
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moveCursesWindow (widget->labelWin, -xdiff, -ydiff);
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moveCursesWindow (widget->fieldWin, -xdiff, -ydiff);
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moveCursesWindow (widget->shadowWin, -xdiff, -ydiff);
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/* Touch the windows so they 'move'. */
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refreshCDKWindow (WindowOf (widget));
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|
|
/* Redraw the window, if they asked for it. */
|
|
if (refresh_flag)
|
|
{
|
|
drawCDK<MIXED> (widget, ObjOf (widget)->box);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This function draws the widget.
|
|
*/
|
|
static void _drawCDK<MIXED> (CDKOBJS *object, boolean Box)
|
|
{
|
|
CDK<UPPER> *widget = (CDK<UPPER> *) object;
|
|
|
|
/* Draw the shadow. */
|
|
if (widget->shadowWin != 0)
|
|
{
|
|
drawShadow (widget->shadowWin);
|
|
}
|
|
|
|
/* Box the widget if asked. */
|
|
if (Box)
|
|
{
|
|
drawObjBox (widget->win, ObjOf (widget));
|
|
}
|
|
|
|
drawCdkTitle (widget->win, object);
|
|
|
|
/* Draw the label. */
|
|
if (widget->labelWin != 0)
|
|
{
|
|
writeChtype (widget->labelWin, 0, 0,
|
|
widget->label,
|
|
HORIZONTAL, 0,
|
|
widget->labelLen);
|
|
wrefresh (widget->labelWin);
|
|
}
|
|
wrefresh (widget->win);
|
|
|
|
/* Draw the field window. */
|
|
drawCDK<MIXED>Field (widget);
|
|
}
|
|
|
|
/*
|
|
* This draws the widget.
|
|
*/
|
|
static void drawCDK<MIXED>Field (CDK<UPPER> * widget)
|
|
{
|
|
char temp[256];
|
|
|
|
werase (widget->fieldWin);
|
|
|
|
/* Draw the value in the field. */
|
|
#if <FLOAT>
|
|
{
|
|
char format[256];
|
|
int digits = MINIMUM (widget->digits, 30);
|
|
sprintf (format, "%%.%i<PRINT>", digits);
|
|
sprintf (temp, format, widget->current);
|
|
}
|
|
#endif <FLOAT>
|
|
#if <INT>
|
|
sprintf (temp, "%<PRINT>", widget->current);
|
|
#endif <INT>
|
|
writeCharAttrib (widget->fieldWin,
|
|
widget->fieldWidth - (int)strlen (temp) - 1,
|
|
0,
|
|
temp,
|
|
widget->fieldAttr,
|
|
HORIZONTAL,
|
|
0,
|
|
(int)strlen (temp));
|
|
|
|
moveToEditPosition (widget, widget->fieldEdit);
|
|
wrefresh (widget->fieldWin);
|
|
}
|
|
|
|
/*
|
|
* This sets the background attribute of the widget.
|
|
*/
|
|
static void _setBKattr<MIXED> (CDKOBJS *object, chtype attrib)
|
|
{
|
|
if (object != 0)
|
|
{
|
|
CDK<UPPER> *widget = (CDK<UPPER> *) object;
|
|
|
|
wbkgd (widget->win, attrib);
|
|
wbkgd (widget->fieldWin, attrib);
|
|
if (widget->labelWin != 0)
|
|
{
|
|
wbkgd (widget->labelWin, attrib);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This function destroys the widget.
|
|
*/
|
|
static void _destroyCDK<MIXED> (CDKOBJS *object)
|
|
{
|
|
if (object != 0)
|
|
{
|
|
CDK<UPPER> *widget = (CDK<UPPER> *) object;
|
|
|
|
cleanCdkTitle (object);
|
|
freeChtype (widget->label);
|
|
|
|
/* Clean up the windows. */
|
|
deleteCursesWindow (widget->fieldWin);
|
|
deleteCursesWindow (widget->labelWin);
|
|
deleteCursesWindow (widget->shadowWin);
|
|
deleteCursesWindow (widget->win);
|
|
|
|
/* Clean the key bindings. */
|
|
cleanCDKObjectBindings (v<UPPER>, widget);
|
|
|
|
/* Unregister this object. */
|
|
unregisterCDKObject (v<UPPER>, widget);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This function erases the widget from the screen.
|
|
*/
|
|
static void _eraseCDK<MIXED> (CDKOBJS *object)
|
|
{
|
|
if (validCDKObject (object))
|
|
{
|
|
CDK<UPPER> *widget = (CDK<UPPER> *) object;
|
|
|
|
eraseCursesWindow (widget->labelWin);
|
|
eraseCursesWindow (widget->fieldWin);
|
|
eraseCursesWindow (widget->win);
|
|
eraseCursesWindow (widget->shadowWin);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This function sets the low/high/current values of the widget.
|
|
*/
|
|
void setCDK<MIXED> (CDK<UPPER> * widget, <CTYPE> low, <CTYPE> high, <CTYPE> value, boolean Box)
|
|
{
|
|
setCDK<MIXED>LowHigh (widget, low, high);
|
|
setCDK<MIXED>Value (widget, value);
|
|
setCDK<MIXED>Box (widget, Box);
|
|
}
|
|
|
|
/*
|
|
* This sets the digits.
|
|
*/
|
|
#if <FLOAT>
|
|
void setCDK<MIXED>Digits (CDK<UPPER> * widget, int digits)
|
|
{
|
|
widget->digits = MAXIMUM (0, digits);
|
|
}
|
|
|
|
int getCDK<MIXED>Digits (CDK<UPPER> * widget)
|
|
{
|
|
return widget->digits;
|
|
}
|
|
#endif <FLOAT>
|
|
|
|
/*
|
|
* This sets the widget's value.
|
|
*/
|
|
void setCDK<MIXED>Value (CDK<UPPER> * widget, <CTYPE> value)
|
|
{
|
|
widget->current = value;
|
|
limitCurrentValue (widget);
|
|
}
|
|
<CTYPE> getCDK<MIXED>Value (CDK<UPPER> * widget)
|
|
{
|
|
return widget->current;
|
|
}
|
|
|
|
/*
|
|
* This function sets the low/high values of the widget.
|
|
*/
|
|
void setCDK<MIXED>LowHigh (CDK<UPPER> * widget, <CTYPE> low, <CTYPE> high)
|
|
{
|
|
/* Make sure the values aren't out of bounds. */
|
|
if (low <= high)
|
|
{
|
|
widget->low = low;
|
|
widget->high = high;
|
|
}
|
|
else
|
|
{
|
|
widget->low = high;
|
|
widget->high = low;
|
|
}
|
|
|
|
/* Make sure the user hasn't done something silly. */
|
|
limitCurrentValue (widget);
|
|
}
|
|
<CTYPE> getCDK<MIXED>LowValue (CDK<UPPER> * widget)
|
|
{
|
|
return widget->low;
|
|
}
|
|
<CTYPE> getCDK<MIXED>HighValue (CDK<UPPER> * widget)
|
|
{
|
|
return widget->high;
|
|
}
|
|
|
|
/*
|
|
* This sets the widget's box attribute.
|
|
*/
|
|
void setCDK<MIXED>Box (CDK<UPPER> * widget, boolean Box)
|
|
{
|
|
ObjOf (widget)->box = Box;
|
|
ObjOf (widget)->borderSize = Box ? 1 : 0;
|
|
}
|
|
boolean getCDK<MIXED>Box (CDK<UPPER> * widget)
|
|
{
|
|
return ObjOf (widget)->box;
|
|
}
|
|
|
|
static void _focusCDK<MIXED> (CDKOBJS *object)
|
|
{
|
|
CDK<UPPER> *widget = (CDK<UPPER> *) object;
|
|
|
|
drawCDK<MIXED> (widget, ObjOf (widget)->box);
|
|
}
|
|
|
|
static void _unfocusCDK<MIXED> (CDKOBJS *object)
|
|
{
|
|
CDK<UPPER> *widget = (CDK<UPPER> *) object;
|
|
|
|
drawCDK<MIXED> (widget, ObjOf (widget)->box);
|
|
}
|
|
|
|
dummyRefreshData (<MIXED>)
|
|
|
|
dummySaveData (<MIXED>)
|