631 lines
14 KiB
C
631 lines
14 KiB
C
#include <cdk.h>
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/*
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* $Author: garbled $
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* $Date: 2001/01/09 18:41:53 $
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* $Revision: 1.3 $
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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 drawCDKScaleField (CDKSCALE *scale);
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DeclareCDKObjects(my_funcs,Scale);
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/*
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* This function creates a scale widget.
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*/
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CDKSCALE *newCDKScale (CDKSCREEN *cdkscreen, int xplace, int yplace, char *title, char *label, chtype fieldAttr, int fieldWidth, int start, int low, int high, int inc, int fastinc, boolean Box, boolean shadow)
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{
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/* Declare local variables. */
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CDKSCALE *scale = newCDKObject(CDKSCALE, &my_funcs);
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chtype *holder = 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 = 3;
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int boxWidth = fieldWidth + 2;
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int maxWidth = INT_MIN;
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int horizontalAdjust = 0;
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int xpos = xplace;
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int ypos = yplace;
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char **temp = 0;
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int x, len, junk, junk2;
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/* Set some basic values of the scale field. */
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scale->label = 0;
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scale->labelLen = 0;
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scale->labelWin = 0;
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scale->titleLines = 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;
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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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scale->label = char2Chtype (label, &scale->labelLen, &junk);
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boxWidth = scale->labelLen + fieldWidth + 2;
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}
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/* Translate the char * items to chtype * */
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if (title != 0)
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{
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temp = CDKsplitString (title, '\n');
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scale->titleLines = CDKcountStrings (temp);
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/* We need to determine the widest title line. */
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for (x=0; x < scale->titleLines; x++)
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{
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holder = char2Chtype (temp[x], &len, &junk2);
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maxWidth = MAXIMUM (maxWidth, len);
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freeChtype (holder);
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}
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/*
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* If one of the title lines is wider than the field and the label,
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* the box width will expand to accomodate.
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*/
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if (maxWidth > boxWidth)
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{
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horizontalAdjust = (int)((maxWidth - boxWidth) / 2) + 1;
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boxWidth = maxWidth + 2;
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}
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/* For each line in the title, convert from char * to chtype * */
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for (x=0; x < scale->titleLines; x++)
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{
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scale->title[x] = char2Chtype (temp[x], &scale->titleLen[x], &scale->titlePos[x]);
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scale->titlePos[x] = justifyString (boxWidth - 2, scale->titleLen[x], scale->titlePos[x]);
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}
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CDKfreeStrings(temp);
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}
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else
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{
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/* No title? Set the required variables. */
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scale->titleLines = 0;
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}
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boxHeight += scale->titleLines;
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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 = MINIMUM (boxWidth, parentWidth);
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boxHeight = MINIMUM (boxHeight, parentHeight);
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fieldWidth = (fieldWidth > (boxWidth - scale->labelLen - 2) ? (boxWidth - scale->labelLen - 2) : 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 scale window. */
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scale->win = newwin (boxHeight + !!shadow, boxWidth + !!shadow, ypos, xpos);
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/* Is the main window null??? */
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if (scale->win == 0)
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{
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freeChtype (scale->label);
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free (scale);
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/* Return a null pointer. */
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return (0);
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}
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keypad (scale->win, TRUE);
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leaveok (scale->win, TRUE);
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if (scale->titleLines > 0)
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{
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/* Make the title window. */
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scale->titleWin = subwin (scale->win,
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scale->titleLines, boxWidth - 2,
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ypos + 1, xpos + 1);
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}
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/* Create the scale label window. */
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if (scale->label != 0)
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{
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scale->labelWin = subwin (scale->win, 1,
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scale->labelLen,
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ypos + scale->titleLines + 1,
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xpos + horizontalAdjust + 1);
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}
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/* Create the scale field window. */
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scale->fieldWin = subwin (scale->win, 1, fieldWidth,
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ypos + scale->titleLines + 1,
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xpos + scale->labelLen + horizontalAdjust + 1);
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/* Create the scale field. */
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ScreenOf(scale) = cdkscreen;
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ObjOf(scale)->box = Box;
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scale->parent = cdkscreen->window;
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scale->boxWidth = boxWidth;
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scale->boxHeight = boxHeight;
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scale->fieldWidth = fieldWidth;
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scale->fieldAttr = (chtype)fieldAttr;
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scale->current = low;
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scale->low = low;
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scale->high = high;
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scale->current = start;
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scale->inc = inc;
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scale->fastinc = fastinc;
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scale->exitType = vNEVER_ACTIVATED;
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scale->shadow = shadow;
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scale->preProcessFunction = 0;
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scale->preProcessData = 0;
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scale->postProcessFunction = 0;
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scale->postProcessData = 0;
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scale->ULChar = ACS_ULCORNER;
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scale->URChar = ACS_URCORNER;
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scale->LLChar = ACS_LLCORNER;
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scale->LRChar = ACS_LRCORNER;
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scale->HChar = ACS_HLINE;
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scale->VChar = ACS_VLINE;
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scale->BoxAttrib = A_NORMAL;
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/* Clean the key bindings. */
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cleanCDKObjectBindings (vSCALE, scale);
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/* Register this baby. */
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registerCDKObject (cdkscreen, vSCALE, scale);
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/* Return the pointer. */
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return (scale);
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}
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/*
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* This allows the person to use the scale field.
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*/
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int activateCDKScale (CDKSCALE *scale, chtype *actions)
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{
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/* Declare local variables. */
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int ret;
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/* Draw the scale widget. */
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drawCDKScale (scale, ObjOf(scale)->box);
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/* Check if actions is null. */
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if (actions == 0)
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{
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chtype input = 0;
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for (;;)
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{
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/* Get the input. */
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wrefresh (scale->win);
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input = wgetch (scale->win);
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/* Inject the character into the widget. */
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ret = injectCDKScale (scale, input);
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if (scale->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 = injectCDKScale (scale, actions[x]);
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if (scale->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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scale->exitType = vEARLY_EXIT;
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return -1;
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}
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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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int injectCDKScale (CDKSCALE *scale, chtype input)
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{
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/* Declare some local variables. */
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int ppReturn = 1;
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/* Set the exit type. */
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scale->exitType = vEARLY_EXIT;
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/* Draw the field. */
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drawCDKScaleField (scale);
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/* Check if there is a pre-process function to be called. */
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if (scale->preProcessFunction != 0)
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{
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/* Call the pre-process function. */
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ppReturn = ((PROCESSFN)(scale->preProcessFunction)) (vSCALE, scale, scale->preProcessData, 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(vSCALE, scale, input) != 0)
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{
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return 0;
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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 : case 'd' : case '-' : case KEY_DOWN :
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if (scale->current > scale->low)
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{
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scale->current -= scale->inc;
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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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break;
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case KEY_RIGHT : case 'u' : case '+' : case KEY_UP :
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if (scale->current < scale->high)
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{
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scale->current += scale->inc;
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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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break;
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case KEY_PPAGE : case 'U' : case CONTROL('B') :
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if ((scale->current + scale->fastinc) <= scale->high)
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{
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scale->current += scale->fastinc;
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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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break;
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case KEY_NPAGE : case 'D' : case CONTROL('F') :
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if ((scale->current - scale->fastinc) >= scale->low)
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{
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scale->current -= scale->fastinc;
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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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break;
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case KEY_HOME : case 'g' : case '0' :
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scale->current = scale->low;
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break;
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case KEY_END : case 'G' : case '$' :
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scale->current = scale->high;
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break;
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case KEY_RETURN : case TAB : case KEY_ENTER : case KEY_CR :
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scale->exitType = vNORMAL;
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return (scale->current);
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case KEY_ESC :
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scale->exitType = vESCAPE_HIT;
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return (scale->current);
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case CDK_REFRESH :
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eraseCDKScreen (ScreenOf(scale));
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refreshCDKScreen (ScreenOf(scale));
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break;
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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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/* Should we call a post-process? */
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if (scale->postProcessFunction != 0)
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{
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((PROCESSFN)(scale->postProcessFunction)) (vSCALE, scale, scale->postProcessData, input);
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}
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}
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/* Draw the field window. */
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drawCDKScaleField (scale);
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/* Set the exit type and return. */
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scale->exitType = vEARLY_EXIT;
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return 0;
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}
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/*
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* This moves the scale field to the given location.
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*/
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static void _moveCDKScale (CDKOBJS *object, int xplace, int yplace, boolean relative, boolean refresh_flag)
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{
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CDKSCALE *scale = (CDKSCALE *)object;
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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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xplace += getbegx(scale->win);
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yplace += getbegy(scale->win);
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}
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/* Adjust the window if we need to. */
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alignxy (WindowOf(scale), &xplace, &yplace, scale->boxWidth, scale->boxHeight);
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/* Move the window to the new location. */
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moveCursesWindow(scale->win, xplace, yplace);
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/* Redraw the window, if they asked for it. */
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if (refresh_flag)
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{
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drawCDKScale (scale, ObjOf(scale)->box);
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}
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}
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/*
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* This function draws the scale widget.
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*/
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static void _drawCDKScale (CDKOBJS *object, boolean Box)
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{
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CDKSCALE *scale = (CDKSCALE *)object;
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int x;
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/* Box the widget if asked. */
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if (Box)
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{
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attrbox (scale->win,
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scale->ULChar, scale->URChar,
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scale->LLChar, scale->LRChar,
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scale->HChar, scale->VChar,
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scale->BoxAttrib,
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scale->shadow);
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}
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if (scale->titleLines > 0)
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{
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/* Draw in the title if there is one. */
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for (x=0; x < scale->titleLines; x++)
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{
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writeChtype (scale->titleWin,
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scale->titlePos[x], x,
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scale->title[x],
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HORIZONTAL, 0,
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scale->titleLen[x]);
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}
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wnoutrefresh (scale->titleWin);
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}
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/* Draw the label. */
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if (scale->label != 0)
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{
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writeChtype (scale->labelWin, 0, 0,
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scale->label,
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HORIZONTAL, 0,
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scale->labelLen);
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wnoutrefresh (scale->labelWin);
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}
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/* Draw the field window. */
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drawCDKScaleField (scale);
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}
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/*
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* This draws the scale widget.
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*/
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static void drawCDKScaleField (CDKSCALE *scale)
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{
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/* Declare the local variables. */
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int len;
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char temp[256];
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/* Erase the field. */
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werase (scale->fieldWin);
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/* Draw the value in the field. */
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sprintf (temp, "%d", scale->current);
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len = (int)strlen(temp);
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writeCharAttrib (scale->fieldWin,
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scale->fieldWidth-len, 0, temp,
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scale->fieldAttr,
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HORIZONTAL, 0,
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len);
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/* Refresh the field window. */
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wnoutrefresh (scale->fieldWin);
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wnoutrefresh (scale->win);
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}
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/*
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* These functions set the drawing characters of the widget.
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*/
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void setCDKScaleULChar (CDKSCALE *scale, chtype character)
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{
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scale->ULChar = character;
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}
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void setCDKScaleURChar (CDKSCALE *scale, chtype character)
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{
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scale->URChar = character;
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}
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void setCDKScaleLLChar (CDKSCALE *scale, chtype character)
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{
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scale->LLChar = character;
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}
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void setCDKScaleLRChar (CDKSCALE *scale, chtype character)
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{
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scale->LRChar = character;
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}
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void setCDKScaleVerticalChar (CDKSCALE *scale, chtype character)
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{
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scale->VChar = character;
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}
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void setCDKScaleHorizontalChar (CDKSCALE *scale, chtype character)
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{
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scale->HChar = character;
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}
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void setCDKScaleBoxAttribute (CDKSCALE *scale, chtype character)
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{
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scale->BoxAttrib = character;
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}
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/*
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* This sets the background color of the widget.
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*/
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void setCDKScaleBackgroundColor (CDKSCALE *scale, char *color)
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{
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chtype *holder = 0;
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int junk1, junk2;
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/* Make sure the color isn't null. */
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if (color == 0)
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{
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return;
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}
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/* Convert the value of the environment variable to a chtype. */
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holder = char2Chtype (color, &junk1, &junk2);
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/* Set the widgets background color. */
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wbkgd (scale->win, holder[0]);
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wbkgd (scale->fieldWin, holder[0]);
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if (scale->label != 0)
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{
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wbkgd (scale->labelWin, holder[0]);
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}
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/* Clean up. */
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freeChtype (holder);
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}
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/*
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* This function destroys the scale widget.
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*/
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void destroyCDKScale (CDKSCALE *scale)
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{
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int x;
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/* Erase the object. */
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eraseCDKScale (scale);
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/* Clean up the char pointers. */
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freeChtype (scale->label);
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for (x=0; x < scale->titleLines; x++)
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{
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freeChtype (scale->title[x]);
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}
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/* Clean up the windows. */
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deleteCursesWindow (scale->win);
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/* Unregister this object. */
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unregisterCDKObject (vSCALE, scale);
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/* Finish cleaning up. */
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free (scale);
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}
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/*
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* This function erases the scale widget from the screen.
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*/
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static void _eraseCDKScale (CDKOBJS *object)
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{
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CDKSCALE *scale = (CDKSCALE *)object;
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eraseCursesWindow (scale->win);
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}
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/*
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* These functions set specific attributes of the widget.
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*/
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void setCDKScale (CDKSCALE *scale, int low, int high, int value, boolean Box)
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{
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setCDKScaleLowHigh (scale, low, high);
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setCDKScaleValue (scale, value);
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setCDKScaleBox (scale, Box);
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}
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/*
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* This sets the low and high values of the scale widget.
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*/
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void setCDKScaleLowHigh (CDKSCALE *scale, int low, int high)
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{
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/* Make sure the values aren't out of bounds. */
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if (low <= high)
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{
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scale->low = low;
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scale->high = high;
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}
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else if (low > high)
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{
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scale->low = high;
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scale->high = low;
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}
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}
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int getCDKScaleLowValue (CDKSCALE *scale)
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{
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return scale->low;
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}
|
|
int getCDKScaleHighValue (CDKSCALE *scale)
|
|
{
|
|
return scale->high;
|
|
}
|
|
|
|
/*
|
|
* This sets the scale value.
|
|
*/
|
|
void setCDKScaleValue (CDKSCALE *scale, int value)
|
|
{
|
|
if ((value >= scale->low) && (value <= scale->high))
|
|
{
|
|
scale->current = value;
|
|
}
|
|
}
|
|
int getCDKScaleValue (CDKSCALE *scale)
|
|
{
|
|
return scale->current;
|
|
}
|
|
|
|
/*
|
|
* This sets the scale box attribute.
|
|
*/
|
|
void setCDKScaleBox (CDKSCALE *scale, boolean Box)
|
|
{
|
|
ObjOf(scale)->box = Box;
|
|
}
|
|
boolean getCDKScaleBox (CDKSCALE *scale)
|
|
{
|
|
return ObjOf(scale)->box;
|
|
}
|
|
|
|
/*
|
|
* This function sets the pre-process function.
|
|
*/
|
|
void setCDKScalePreProcess (CDKSCALE *scale, PROCESSFN callback, void *data)
|
|
{
|
|
scale->preProcessFunction = callback;
|
|
scale->preProcessData = data;
|
|
}
|
|
|
|
/*
|
|
* This function sets the post-process function.
|
|
*/
|
|
void setCDKScalePostProcess (CDKSCALE *scale, PROCESSFN callback, void *data)
|
|
{
|
|
scale->postProcessFunction = callback;
|
|
scale->postProcessData = data;
|
|
}
|