NetBSD/dist/cdk/viewer.c

1189 lines
28 KiB
C

#include <cdk.h>
/*
* $Author: garbled $
* $Date: 2001/01/04 20:15:31 $
* $Revision: 1.2 $
*/
/*
* Declare some local definitions.
*/
#define DOWN 0
#define UP 1
/*
* Declare file local prototypes.
*/
static int searchForWord (CDKVIEWER *viewer, char *pattern, int direction);
static int jumpToLine (CDKVIEWER *viewer);
static void popUpLabel (CDKVIEWER *viewer, char *mesg);
static void getAndStorePattern (CDKSCREEN *screen);
static void drawCDKViewerButtons (CDKVIEWER *viewer);
static void drawCDKViewerInfo (CDKVIEWER *viewer);
/*
* Declare file local variables.
*/
static char * SearchPattern = 0;
int SearchDirection = DOWN;
DeclareCDKObjects(my_funcs, Viewer);
/*
* This function creates a new viewer object.
*/
CDKVIEWER *newCDKViewer (CDKSCREEN *cdkscreen, int xplace, int yplace, int height, int width, char **buttonLabel, int buttonCount, chtype buttonHighlight, boolean Box, boolean shadow)
{
/* Declare local variables. */
CDKVIEWER *viewer = newCDKObject(CDKVIEWER, &my_funcs);
int parentWidth = getmaxx(cdkscreen->window);
int parentHeight = getmaxy(cdkscreen->window);
int boxWidth = width;
int boxHeight = height;
int xpos = xplace;
int ypos = yplace;
int buttonWidth, buttonPos, buttonAdj;
int x, junk2;
/*
* If the height is a negative value, the height will
* be ROWS-height, otherwise, the height will be the
* given height.
*/
boxHeight = setWidgetDimension (parentHeight, height, 0);
/*
* If the width is a negative value, the width will
* be COLS-width, otherwise, the width will be the
* given width.
*/
boxWidth = setWidgetDimension (parentWidth, width, 0);
/* Translate the button label char * to a chtype * */
buttonWidth = 0;
for (x=0; x < buttonCount; x++)
{
viewer->buttonLabel[x] = char2Chtype (buttonLabel[x], &viewer->buttonLen[x], &junk2);
buttonWidth += viewer->buttonLen[x] + 1;
}
buttonWidth--;
/* Determine the final dimensions of the box. */
boxWidth = MAXIMUM (boxWidth, buttonWidth + 2);
viewer->fieldWidth = boxWidth - 2;
if (buttonCount > 0)
{
viewer->viewSize = boxHeight - 4;
}
else
{
viewer->viewSize = boxHeight - 2;
}
/* Rejustify the x and y positions if we need to. */
alignxy (cdkscreen->window, &xpos, &ypos, boxWidth, boxHeight);
/* Make the viewer window. */
viewer->win = newwin (boxHeight + !!shadow, boxWidth + !!shadow, ypos, xpos);
/* Is the window null? */
if (viewer->win == 0)
{
/* Clean up any used memory. */
for (x=0; x < viewer->buttonCount; x++)
{
freeChtype (viewer->buttonLabel[x]);
}
free (viewer);
/* Return a null pointer. */
return (0);
}
keypad (viewer->win, TRUE);
leaveok (viewer->win, TRUE);
/* Make the info window. */
viewer->infoWin = subwin (viewer->win,
viewer->viewSize, viewer->fieldWidth,
ypos + 1, xpos + 1);
/* Make the button window. */
if (buttonCount > 0)
{
viewer->buttonWin = subwin (viewer->win,
1, boxWidth - 2,
ypos + viewer->viewSize + 2, xpos + 1);
}
/* Set the rest of the variables */
ScreenOf(viewer) = cdkscreen;
viewer->parent = cdkscreen->window;
viewer->buttonCount = buttonCount;
viewer->buttonHighlight = buttonHighlight;
viewer->currentButton = 0;
viewer->boxHeight = boxHeight;
viewer->boxWidth = boxWidth - 2;
viewer->exitType = vNEVER_ACTIVATED;
ObjOf(viewer)->box = Box;
viewer->shadow = shadow;
viewer->currentTop = 0;
viewer->length = 0;
viewer->leftChar = 0;
viewer->maxLeftChar = 0;
viewer->maxTopLine = 0;
viewer->characters = 0;
viewer->infoSize = 0;
viewer->showLineInfo = 1;
viewer->titleLines = 0;
viewer->ULChar = ACS_ULCORNER;
viewer->URChar = ACS_URCORNER;
viewer->LLChar = ACS_LLCORNER;
viewer->LRChar = ACS_LRCORNER;
viewer->HChar = ACS_HLINE;
viewer->VChar = ACS_VLINE;
viewer->BoxAttrib = A_NORMAL;
/* Create the buttons. */
buttonAdj = (boxWidth - 2 - buttonWidth) / (buttonCount + 1);
buttonPos = buttonAdj;
for (x=0; x < buttonCount; x++)
{
viewer->buttonPos[x] = buttonPos;
buttonPos += viewer->buttonLen[x] + buttonAdj;
}
/* Clean the key bindings. */
cleanCDKObjectBindings (vVIEWER, viewer);
/* Register this baby. */
registerCDKObject (cdkscreen, vVIEWER, viewer);
/* Return the viewer object. */
return (viewer);
}
/*
* This function sets various attributes of the widget.
*/
int setCDKViewer (CDKVIEWER *viewer, char *title, char **info, int infoSize, chtype buttonHighlight, boolean attrInterp, boolean showLineInfo, boolean Box)
{
setCDKViewerTitle (viewer, title);
setCDKViewerHighlight (viewer, buttonHighlight);
setCDKViewerInfoLine (viewer, showLineInfo);
setCDKViewerBox (viewer, Box);
return setCDKViewerInfo (viewer, info, infoSize, attrInterp);
}
/*
* This sets the title of the viewer. (A null title is allowed.
* It just means that the viewer will not have a title when drawn.)
*/
void setCDKViewerTitle (CDKVIEWER *viewer, char *title)
{
char **temp;
int x;
/* Clean out the old title. */
if (viewer->titleLines > 0)
{
for (x=0; x < viewer->titleLines; x++)
{
freeChtype (viewer->title[x]);
}
delwin (viewer->titleWin);
}
/* Create the new title if there is one. */
if (title != 0)
{
temp = CDKsplitString (title, '\n');
viewer->titleLines = CDKcountStrings (temp);
/* For each line in the title, convert from char * to chtype * */
for (x=0; x < viewer->titleLines; x++)
{
viewer->title[x] = char2Chtype (temp[x],
&viewer->titleLen[x],
&viewer->titlePos[x]);
viewer->titlePos[x] = justifyString (viewer->boxWidth - 2,
viewer->titleLen[x],
viewer->titlePos[x]);
}
CDKfreeStrings(temp);
}
else
{
/* No title? Set the required variables. */
viewer->titleLines = 0;
}
/* Set the rest of the variables. */
if (viewer->buttonCount > 0)
{
viewer->viewSize = viewer->boxHeight - 4 - viewer->titleLines;
}
else
{
viewer->viewSize = viewer->boxHeight - 2 - viewer->titleLines;
}
if (viewer->titleLines > 0)
{
viewer->titleWin = subwin (viewer->win,
viewer->titleLines, viewer->boxWidth - 2,
getbegy (viewer->win) + 1,
getbegx (viewer->win) + 1);
}
delwin (viewer->infoWin);
viewer->infoWin = subwin (viewer->win,
viewer->viewSize, viewer->fieldWidth,
getbegy (viewer->win) + viewer->titleLines + 1,
getbegx (viewer->win) + 1);
}
chtype **getCDKViewerTitle (CDKVIEWER *viewer)
{
return viewer->title;
}
/*
* This function sets the contents of the viewer.
*/
int setCDKViewerInfo (CDKVIEWER *viewer, char **info, int infoSize, boolean interpret)
{
/* Declare local variables. */
char filename[512];
int widestLine = -1;
int currentLine = 0;
int x = 0;
/* Clean out the old viewer info. (if there is any) */
for (x=0; x < viewer->infoSize; x++)
{
freeChtype (viewer->info[x]);
viewer->info[x] = 0;
}
memset (filename, '\0', 512);
/* Keep some semi-perinant info. */
viewer->interpret = interpret;
/* Copy the information given. */
currentLine = 0;
for (x=0; x < infoSize; x++)
{
if (info[x] == 0)
{
viewer->info[currentLine] = 0;
viewer->infoLen[currentLine] = 0;
viewer->infoPos[currentLine] = 0;
currentLine++;
}
else
{
/* Check if we have a file link in this line. */
if (checkForLink (info[x], filename) == 1)
{
/* We have a link, open the file. */
char *fileContents[MAX_LINES], temp[256];
int fileLen = 0;
int fileLine = 0;
/* Open the file and put it into the viewer. */
fileLen = readFile (filename, fileContents, MAX_LINES);
if (fileLen == -1)
{
int adj = 0;
int len = 0;
/* Could not open the file. */
#ifdef HAVE_START_COLOR
sprintf (temp, "<C></16>Link Failed: Could not open the file %s", filename);
#else
sprintf (temp, "<C></K>Link Failed: Could not open the file %s", filename);
#endif
viewer->info[currentLine] = char2Chtype (temp, &len, &adj);
viewer->infoPos[currentLine] = justifyString (viewer->boxWidth, len, adj);
viewer->infoLen[currentLine] = len;
widestLine = MAXIMUM (widestLine, viewer->infoLen[currentLine]);
currentLine++;
}
else
{
/* For each line read, copy it into the viewer. */
for (fileLine=0; fileLine < fileLen ; fileLine++)
{
int len = (int)strlen (fileContents[fileLine]);
int y;
/* Init memory and clean it. */
viewer->info[currentLine] = (chtype *)malloc (sizeof(chtype) * (len + 3));
cleanChtype (viewer->info[currentLine], len + 3, '\0');
/* Copy from one to the other. */
for (y=0; y < len; y++)
{
viewer->info[currentLine][y] = fileContents[fileLine][y];
}
viewer->infoLen[currentLine] = len;
viewer->infoPos[currentLine] = 0;
widestLine = MAXIMUM(widestLine, len);
viewer->characters += len;
freeChar (fileContents[fileLine]);
currentLine++;
}
}
}
else
{
/* Did they ask for attribute interpretation? */
if (!viewer->interpret)
{
int len = (int)strlen (info[x]);
int y;
/* Init memory and clean it. */
viewer->info[currentLine] = (chtype *)malloc (sizeof(chtype) * (len + 3));
cleanChtype (viewer->info[currentLine], len + 3, '\0');
/* Copy from one to the other. */
for (y=0; y < len; y++)
{
viewer->info[currentLine][y] = info[x][y];
}
viewer->infoLen[currentLine] = len;
viewer->infoPos[currentLine] = 0;
widestLine = MAXIMUM(widestLine, len);
viewer->characters += len;
currentLine++;
}
else
{
viewer->info[currentLine] = char2Chtype (info[x],
&viewer->infoLen[currentLine],
&viewer->infoPos[currentLine]);
viewer->infoPos[currentLine] = justifyString (viewer->boxWidth,
viewer->infoLen[currentLine],
viewer->infoPos[currentLine]);
widestLine = MAXIMUM(widestLine, viewer->infoLen[currentLine]);
viewer->characters += viewer->infoLen[currentLine];
currentLine++;
}
}
}
}
/*
* Determine how many characters we can shift to the right
* before all the items have been viewer off the screen.
*/
viewer->maxLeftChar = MAXIMUM (0, widestLine - viewer->boxWidth);
/* Set up the needed vars for the viewer list. */
viewer->infoSize = currentLine;
viewer->maxTopLine = MAXIMUM (0, viewer->infoSize - viewer->viewSize);
return viewer->infoSize;
}
chtype **getCDKViewerInfo (CDKVIEWER *viewer, int *size)
{
(*size) = viewer->infoSize;
return viewer->info;
}
/*
* This function sets the highlight type of the buttons.
*/
void setCDKViewerHighlight (CDKVIEWER *viewer, chtype buttonHighlight)
{
viewer->buttonHighlight = buttonHighlight;
}
chtype getCDKViewerHighlight (CDKVIEWER *viewer)
{
return viewer->buttonHighlight;
}
/*
* This sets whether or not you want to set the viewer info line.
*/
void setCDKViewerInfoLine (CDKVIEWER *viewer, boolean showLineInfo)
{
viewer->showLineInfo = showLineInfo;
}
boolean getCDKViewerInfoLine (CDKVIEWER *viewer)
{
return viewer->showLineInfo;
}
/*
* This sets the widgets box attribute.
*/
void setCDKViewerBox (CDKVIEWER *viewer, boolean Box)
{
ObjOf(viewer)->box = Box;
}
boolean getCDKViewerBox (CDKVIEWER *viewer)
{
return ObjOf(viewer)->box;
}
/*
* This function actually controls the viewer...
*/
int activateCDKViewer (CDKVIEWER *viewer, chtype *actions GCC_UNUSED)
{
/* Declare local variables. */
CDKLABEL *fileInfoLabel;
char *fileInfo[10], temp[500];
chtype emptyString[256];
chtype input;
int x, REFRESH;
/* Create a string full of spaces. */
cleanChtype (emptyString, viewer->boxWidth-1, '\0');
cleanChtype (emptyString, viewer->boxWidth-3, ' ');
/* Create the information about the file stats. */
sprintf (temp, "</5> </U>File Statistics<!U> <!5>");
fileInfo[0] = copyChar(temp);
sprintf (temp, "</5> <!5>");
fileInfo[1] = copyChar(temp);
sprintf (temp, "</5/R>Character Count:<!R> %-4d <!5>", viewer->characters);
fileInfo[2] = copyChar(temp);
sprintf (temp, "</5/R>Line Count :<!R> %-4d <!5>", viewer->infoSize);
fileInfo[3] = copyChar(temp);
sprintf (temp, "</5> <!5>");
fileInfo[4] = copyChar(temp);
sprintf (temp, "<C></5>Press Any Key To Continue.<!5>");
fileInfo[5] = copyChar(temp);
/* Set the current button. */
viewer->currentButton = 0;
/* Draw the viewer list. */
drawCDKViewer (viewer, ObjOf(viewer)->box);
/* Do this until KEY_RETURN is hit. */
for (;;)
{
/* Reset the refresh flag. */
REFRESH = FALSE;
/* Get the user input. */
wrefresh (viewer->win);
input = wgetch (viewer->win);
if (! checkCDKObjectBind (vVIEWER, viewer, input))
{
switch (input)
{
case KEY_TAB : case CDK_NEXT :
if (viewer->buttonCount > 1)
{
if (viewer->currentButton == (viewer->buttonCount - 1))
{
viewer->currentButton = 0;
}
else
{
viewer->currentButton++;
}
/* Redraw the buttons. */
drawCDKViewerButtons (viewer);
}
break;
case CDK_PREV :
if (viewer->buttonCount > 1)
{
if (viewer->currentButton == 0)
{
viewer->currentButton = viewer->buttonCount - 1;
}
else
{
viewer->currentButton--;
}
/* Redraw the buttons. */
drawCDKViewerButtons (viewer);
}
break;
case KEY_UP :
if (viewer->currentTop > 0)
{
viewer->currentTop--;
REFRESH = TRUE;
}
else
{
Beep();
}
break;
case KEY_DOWN :
if (viewer->currentTop < viewer->maxTopLine)
{
viewer->currentTop++;
REFRESH = TRUE;
}
else
{
Beep();
}
break;
case KEY_RIGHT :
if (viewer->leftChar < viewer->maxLeftChar)
{
viewer->leftChar++;
REFRESH = TRUE;
}
else
{
Beep();
}
break;
case KEY_LEFT :
if (viewer->leftChar > 0)
{
viewer->leftChar--;
REFRESH = TRUE;
}
else
{
Beep();
}
break;
case KEY_PPAGE : case CONTROL('B') : case 'b' : case 'B' :
if (viewer->currentTop > 0)
{
if ((viewer->currentTop - (viewer->viewSize-1)) > 0)
{
viewer->currentTop = viewer->currentTop - (viewer->viewSize - 1);
}
else
{
viewer->currentTop = 0;
}
REFRESH = TRUE;
}
else
{
Beep();
}
break;
case KEY_NPAGE : case CONTROL('F') : case ' ' : case 'f' : case 'F' :
if (viewer->currentTop < viewer->maxTopLine)
{
if ((viewer->currentTop + viewer->viewSize) < viewer->maxTopLine)
{
viewer->currentTop = viewer->currentTop + (viewer->viewSize - 1);
}
else
{
viewer->currentTop = viewer->maxTopLine;
}
REFRESH = TRUE;
}
else
{
Beep();
}
break;
case KEY_HOME : case '|' :
viewer->leftChar = 0;
REFRESH = TRUE;
break;
case KEY_END : case '$' :
viewer->leftChar = viewer->maxLeftChar;
REFRESH = TRUE;
break;
case 'g' : case '1' :
viewer->currentTop = 0;
REFRESH = TRUE;
break;
case 'G' :
viewer->currentTop = viewer->maxTopLine;
REFRESH = TRUE;
break;
case 'L' :
x = (int) ((viewer->infoSize + viewer->currentTop) / 2);
if (x < viewer->maxTopLine)
{
viewer->currentTop = x;
REFRESH = TRUE;
}
else
{
Beep();
}
break;
case 'l' :
x = (int) (viewer->currentTop / 2);
if (x >= 0)
{
viewer->currentTop = x;
REFRESH = TRUE;
}
else
{
Beep();
}
break;
case '?' :
SearchDirection = UP;
getAndStorePattern (ScreenOf(viewer));
if (! searchForWord(viewer, SearchPattern, SearchDirection))
{
sprintf (temp, "</U/5>Pattern '%s' not found.<!U!5>", SearchPattern);
popUpLabel (viewer, temp);
}
REFRESH = TRUE;
break;
case '/' :
SearchDirection = DOWN;
getAndStorePattern (ScreenOf(viewer));
if (! searchForWord(viewer, SearchPattern, SearchDirection))
{
sprintf (temp, "</U/5>Pattern '%s' not found.<!U!5>", SearchPattern);
popUpLabel (viewer, temp);
}
REFRESH = TRUE;
break;
case 'n' :
if (SearchPattern == 0)
{
popUpLabel (viewer, "</5>There is no pattern in the buffer.<!5>");
}
else
{
if (! searchForWord(viewer, SearchPattern, SearchDirection))
{
sprintf (temp, "</5>Pattern '%s' not found.<!5>", SearchPattern);
popUpLabel (viewer, temp);
}
}
REFRESH = TRUE;
break;
case ':' :
viewer->currentTop = jumpToLine (viewer);
REFRESH = TRUE;
break;
case 'i' : case 's' : case 'S' :
fileInfoLabel = newCDKLabel (ScreenOf(viewer), CENTER, CENTER, fileInfo, 6, TRUE, FALSE);
drawCDKLabel (fileInfoLabel, TRUE);
waitCDKLabel (fileInfoLabel, 0);
destroyCDKLabel (fileInfoLabel);
REFRESH = TRUE;
break;
case KEY_ESC :
freeCharList (fileInfo, 6);
viewer->exitType = vESCAPE_HIT;
return -1;
case KEY_RETURN : case KEY_ENTER : case KEY_CR :
freeCharList (fileInfo, 6);
viewer->exitType = vNORMAL;
return viewer->currentButton;
case CDK_REFRESH :
eraseCDKScreen (ScreenOf(viewer));
refreshCDKScreen (ScreenOf(viewer));
break;
default :
Beep();
break;
}
}
/* Do we need to redraw the screen??? */
if (REFRESH)
{
drawCDKViewerInfo (viewer);
}
}
}
/*
* This searches the document looking for the given word.
*/
static void getAndStorePattern (CDKSCREEN *screen)
{
/* Declare local variables. */
CDKENTRY *getPattern = 0;
char *temp = 0;
char *info = 0;
/* Check the direction. */
if (SearchDirection == UP)
{
temp = "</5>Search Up : <!5>";
}
else
{
temp = "</5>Search Down: <!5>";
}
/* Pop up the entry field. */
getPattern = newCDKEntry (screen, CENTER, CENTER,
0, temp,
COLOR_PAIR(5)|A_BOLD,
'.'|COLOR_PAIR(5)|A_BOLD,
vMIXED, 10, 0, 256, TRUE, FALSE);
/* Is there an old search pattern? */
if (SearchPattern != 0)
{
setCDKEntry (getPattern, SearchPattern, getPattern->min, getPattern->max, ObjOf(getPattern)->box);
}
freeChar (SearchPattern);
/* Activate this baby. */
info = activateCDKEntry (getPattern, 0);
/* Save the info. */
if ((info != 0) || (strlen (info) != 0))
{
SearchPattern = copyChar (info);
}
/* Clean up. */
destroyCDKEntry (getPattern);
}
/*
* This searches for the word and realigns the value on the screen.
*/
static int searchForWord (CDKVIEWER *viewer, char *pattern, int direction)
{
/* Declare local variables. */
int x, y, pos, len, plen;
/* If the pattern is null then return. */
if (pattern == 0)
{
return(0);
}
plen = (int)strlen(pattern);
/* Given the direction, start looking.... */
if (direction == DOWN)
{
/* Start looking from 'here' down. */
for (x = viewer->currentTop + 1; x < viewer->infoSize; x++)
{
/*
* Start looking. If we find it, then set the value of
* viewer->currentTop and possibly even leftChar...
*/
len = chlen (viewer->info[x]);
pos = 0;
for (y=0; y < len; y++)
{
/* We have to tear the attributes from the chtype. */
char plainChar = viewer->info[x][y] & A_CHARTEXT;
/* We have found the word at this point. */
if (pos == plen)
{
viewer->currentTop = (x < viewer->maxTopLine ? x : viewer->maxTopLine);
viewer->leftChar = (y < viewer->boxWidth ? 0 : viewer->maxLeftChar);
return (1);
}
/* Keep trudging along. */
if (pattern[pos++] != plainChar)
{
pos = 0;
}
}
}
}
else
{
/* Start looking from 'here' up. */
for (x = viewer->currentTop - 1; x >= 0; x--)
{
/*
* Start looking. If we find it, then set the value of
* viewer->currentTop and possibly even leftChar...
*/
len = chlen (viewer->info[x]);
pos = 0;
for (y=0; y < len; y++)
{
/* We have to tear the attributes from the chtype. */
char plainChar = viewer->info[x][y] & A_CHARTEXT;
/* We have found the word at this point. */
if (pos == plen)
{
viewer->currentTop = x;
viewer->leftChar = (y < viewer->boxWidth ? 0 : viewer->maxLeftChar);
return (1);
}
/* Keep trudging along. */
if (pattern[pos++] != plainChar)
{
pos = 0;
}
}
}
}
return(0);
}
/*
* This allows us to 'jump' to a given line in the file.
*/
static int jumpToLine (CDKVIEWER *viewer)
{
/* Declare local variables. */
int line = 0;
CDKSCALE * newline = newCDKScale (ScreenOf(viewer), CENTER, CENTER,
"<C>Jump To Line", "</5>Line :", A_BOLD, 5,
0, 0, viewer->maxTopLine + 1, 1, 10, TRUE, TRUE);
line = activateCDKScale (newline, 0);
destroyCDKScale (newline);
return ((line-1));
}
/*
* This pops a little message up on the screen.
*/
static void popUpLabel (CDKVIEWER *viewer, char *mesg)
{
/* Declare local variables. */
char *info[3];
CDKLABEL *label;
/* Set up variables. */
info[0] = mesg;
label = newCDKLabel (ScreenOf(viewer), CENTER, CENTER, info, 1, TRUE, FALSE);
/* Draw the label and wait. */
drawCDKLabel (label, TRUE);
waitCDKLabel (label, 0);
/* Clean up. */
destroyCDKLabel (label);
}
/*
* This moves the viewer field to the given location.
*/
static void _moveCDKViewer (CDKOBJS *object, int xplace, int yplace, boolean relative, boolean refresh_flag)
{
CDKVIEWER *viewer = (CDKVIEWER *)object;
/*
* If this is a relative move, then we will adjust where we want
* to move to.
*/
if (relative)
{
xplace += getbegx(viewer->win);
yplace += getbegy(viewer->win);
}
/* Adjust the window if we need to. */
alignxy (WindowOf(viewer), &xplace, &yplace, viewer->boxWidth, viewer->boxHeight);
/* Move the window to the new location. */
moveCursesWindow(viewer->win, xplace, yplace);
/* Redraw the window, if they asked for it. */
if (refresh_flag)
{
drawCDKViewer (viewer, ObjOf(viewer)->box);
}
}
/*
* This function draws the viewer widget.
*/
static void _drawCDKViewer (CDKOBJS *object, boolean Box)
{
CDKVIEWER *viewer = (CDKVIEWER *)object;
int x;
/* Box it if it was asked for. */
if (Box)
{
attrbox (viewer->win,
viewer->ULChar, viewer->URChar,
viewer->LLChar, viewer->LRChar,
viewer->HChar, viewer->VChar,
viewer->BoxAttrib,
viewer->shadow);
}
if (viewer->titleLines > 0)
{
/* Redraw the title. */
for (x=0; x < viewer->titleLines; x++)
{
writeChtype (viewer->titleWin,
viewer->titlePos[x], x,
viewer->title[x],
HORIZONTAL, 0,
viewer->titleLen[x]);
}
wnoutrefresh (viewer->titleWin);
}
/* Draw the info in the viewer. */
drawCDKViewerInfo (viewer);
}
/*
* This redraws the viewer buttons.
*/
static void drawCDKViewerButtons (CDKVIEWER *viewer)
{
/* Declare local variables. */
int x;
if (viewer->buttonCount > 0)
{
for (x=0; x < viewer->buttonCount; x++)
{
if (x == viewer->currentButton)
{
writeChtypeAttrib (viewer->buttonWin,
viewer->buttonPos[x], 0,
viewer->buttonLabel[x],
viewer->buttonHighlight,
HORIZONTAL, 0,
viewer->buttonLen[x]);
}
else
{
writeChtype (viewer->buttonWin,
viewer->buttonPos[x], 0,
viewer->buttonLabel[x],
HORIZONTAL, 0,
viewer->buttonLen[x]);
}
}
wnoutrefresh (viewer->buttonWin);
}
wnoutrefresh (viewer->win);
}
/*
* These functions set the drawing characters of the widget.
*/
void setCDKViewerULChar (CDKVIEWER *viewer, chtype character)
{
viewer->ULChar = character;
}
void setCDKViewerURChar (CDKVIEWER *viewer, chtype character)
{
viewer->URChar = character;
}
void setCDKViewerLLChar (CDKVIEWER *viewer, chtype character)
{
viewer->LLChar = character;
}
void setCDKViewerLRChar (CDKVIEWER *viewer, chtype character)
{
viewer->LRChar = character;
}
void setCDKViewerVerticalChar (CDKVIEWER *viewer, chtype character)
{
viewer->VChar = character;
}
void setCDKViewerHorizontalChar (CDKVIEWER *viewer, chtype character)
{
viewer->HChar = character;
}
void setCDKViewerBoxAttribute (CDKVIEWER *viewer, chtype character)
{
viewer->BoxAttrib = character;
}
/*
* This sets the background color of the widget.
*/
void setCDKViewerBackgroundColor (CDKVIEWER *viewer, char *color)
{
chtype *holder = 0;
int junk1, junk2;
/* Make sure the color isn't null. */
if (color == 0)
{
return;
}
/* Convert the value of the environment variable to a chtype. */
holder = char2Chtype (color, &junk1, &junk2);
/* Set the widgets background color. */
wbkgd (viewer->win, holder[0]);
/* Clean up. */
freeChtype (holder);
}
/*
* This function destroys the viewer widget.
*/
void destroyCDKViewer (CDKVIEWER *viewer)
{
/* Declare local variables. */
int x;
/* Erase the object. */
eraseCDKViewer (viewer);
/* Clear up the char pointers. */
for (x=0; x < viewer->titleLines; x++)
{
freeChtype (viewer->title[x]);
}
for (x=0; x < viewer->infoSize; x++)
{
freeChtype (viewer->info[x]);
}
for (x=0; x < viewer->buttonCount; x++)
{
freeChtype (viewer->buttonLabel[x]);
}
/* Clean up the windows. */
deleteCursesWindow (viewer->win);
/* Unregister this object. */
unregisterCDKObject (vVIEWER, viewer);
/* Finish cleaning up. */
free (viewer);
}
/*
* This function erases the viewer widget from the screen.
*/
static void _eraseCDKViewer (CDKOBJS *object)
{
CDKVIEWER *viewer = (CDKVIEWER *)object;
eraseCursesWindow (viewer->win);
}
/*
* This draws the viewer info lines.
*/
static void drawCDKViewerInfo (CDKVIEWER *viewer)
{
/* Declare some local vars */
int infoAdjust = 0;
char temp[256];
int screenPos, x;
/* Clear the window. */
werase (viewer->infoWin);
/* Draw in the current line at the top. */
if (viewer->showLineInfo == TRUE)
{
/* Set up the info line and draw it. */
if (viewer->infoSize != 0)
{
sprintf (temp, "%d/%d %2.0f%%",
viewer->currentTop + 1,
viewer->infoSize,
(float)(viewer->currentTop + 1) / (float)viewer->infoSize * 100);
}
else
{
sprintf (temp, "%d/%d %2.0f%%", 0, 0, 0.0);
}
/*
* The infoAdjust variable tells us if we have to shift down
* one line because the person asked for the line X of Y line
* at the top of the screen. We only want to set this to 1 if
* they asked for the info line and there is no title, or if the
* two items overlap.
*/
if (viewer->titleLines == 0
|| viewer->titlePos[0] < (int)strlen(temp) + 2)
{
infoAdjust = 1;
}
writeChar (viewer->infoWin, 0, 0,
temp, HORIZONTAL, 0, (int)strlen(temp));
}
/* Redraw the list. */
for (x=0; x < viewer->viewSize - infoAdjust; x++)
{
if (x + viewer->currentTop >= viewer->infoSize)
{
break;
}
screenPos = viewer->infoPos[viewer->currentTop + x] - viewer->leftChar;
if (screenPos >= 0)
{
writeChtype (viewer->infoWin,
screenPos, x + infoAdjust,
viewer->info[x + viewer->currentTop],
HORIZONTAL, 0,
viewer->infoLen[x + viewer->currentTop]);
}
else
{
writeChtype (viewer->infoWin,
0, x + infoAdjust,
viewer->info[x + viewer->currentTop],
HORIZONTAL, -screenPos,
viewer->infoLen[x + viewer->currentTop]);
}
}
/* Draw the separation line. */
if (viewer->buttonCount > 0)
{
mvwaddch (viewer->win, viewer->boxHeight-3, 0,
ACS_LTEE | viewer->BoxAttrib);
mvwhline (viewer->win, viewer->boxHeight-3, 1,
viewer->HChar | viewer->BoxAttrib, viewer->boxWidth);
mvwaddch (viewer->win, viewer->boxHeight-3,
viewer->boxWidth+1,
ACS_RTEE | viewer->BoxAttrib);
}
wnoutrefresh (viewer->infoWin);
/* Draw the buttons. This will call refresh on the viewer win. */
drawCDKViewerButtons (viewer);
}