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xvtext.c
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xvtext.c
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/*
* xvtext.c - text file display window routines
*
* includes:
* void CreateTextWins(geom, cmtgeom);
* void OpenTextView(text, textlen, title, freeonclose);
* void OpenCommentText();
* void CloseCommentText();
* void ChangeCommentText();
* void HideTextWindows();
* void UnHideTextWindows();
* void RaiseTextWindows();
* void SetTextCursor(Cursor);
* void KillTextWindows();
* int TextCheckEvent(evt, int *retval, int *done);
*
*/
#include "copyright.h"
#include "xv.h"
#ifdef TV_MULTILINGUAL
#include "xvml.h"
#endif
#define MIN_TXTWIDE 380
#define MIN_TXTHIGH 200
#define BUTTW1 80
#define BUTTW2 60
#define BUTTW3 110
#define BUTTH 24
#define TOPMARGIN 30 /* from top of window to top of text window */
#define BOTMARGIN (5+BUTTH+5) /* room for a row of buttons at bottom */
#define LRMARGINS 5 /* left and right margins */
#define MAXTVWIN 2 /* total # of windows */
#define MAXTEXTWIN 1 /* # of windows for text file viewing */
#define CMTWIN 1 /* cmtwin is reserved for image comments */
/* button/menu indicies */
#define TV_ASCII 0
#define TV_HEX 1
#define TV_CLOSE 2
#define TV_E_NBUTTS 3
#ifdef TV_L10N
# define TV_RESCAN 3
# define TV_USASCII 4
# define TV_JIS 5
# define TV_EUCJ 6
# define TV_MSCODE 7
# define TV_J_NBUTTS 8
#endif
#define TITLELEN (NAME_MAX+sizeof("File: ''") + 1)
#ifdef TV_MULTILINGUAL
struct coding_spec {
struct coding_system coding_system;
char *(*converter)PARM((char *, int, int *));
};
#endif
/* data needed per text window */
typedef struct { Window win, textW;
int vis, wasvis;
const char *text; /* text to be displayed */
int freeonclose; /* free text when closing win */
int textlen; /* length of text */
char title[TITLELEN]; /* name of file being displayed */
const char **lines; /* ptr to array of line ptrs */
int numlines; /* # of lines in text */
int hexlines; /* # of lines in HEX mode */
int maxwide; /* length of longest line (ascii) */
int wide, high; /* size of outer window (win) */
int twWide, twHigh; /* size of inner window (textW) */
int chwide, chhigh; /* size of textW, in chars */
int hexmode; /* true if disp Hex, else Ascii */
SCRL vscrl, hscrl;
#ifdef TV_L10N
int code; /* current character code */
BUTT but[TV_J_NBUTTS], nopBut;
#else
BUTT but[TV_E_NBUTTS], nopBut;
#endif
#ifdef TV_MULTILINGUAL
/* int codeset; */
struct coding_spec ccs; /* current coding_spec */
BUTT csbut;
char *cv_text;
int cv_len;
struct context *ctx;
struct ml_text *txt;
struct csinfo_t *cs;
#endif
} TVINFO;
static TVINFO tinfo[MAXTVWIN];
static int hasBeenSized = 0;
static int haveWindows = 0;
static int nbutts; /* # of buttons */
static int mfwide, mfhigh, mfascent; /* size of chars in mono font */
static int *event_retP, *event_doneP; /* used in tvChkEvent() */
#ifdef TV_MULTILINGUAL
# define TV_PLAIN 0
# define TV_ISO_8859_1 1
# define TV_ISO_2022_JP 2
# define TV_EUC_JAPAN 3
# define TV_ISO_2022_INT_1 4
# define TV_ISO_2022_KR 5
# define TV_EUC_KOREA 6
# define TV_ISO_2022_SS2_8 7
# define TV_ISO_2022_SS2_7 8
# define TV_SHIFT_JIS 9
# define TV_NCSS 10
static char *codeSetNames[TV_NCSS] = {
"plain",
"iso-8859-1",
"iso-2022-jp",
"euc-japan",
"iso-2022-int-1",
"iso-2022-kr",
"euc-korea",
"iso-2022-ss2-8",
"iso-2022-ss2-7",
"Shift JIS",
};
static struct coding_spec coding_spec[TV_NCSS] = {
/* --- G0 --- --- G1 --- --- G2 --- --- G3 --- GL GR EOL SF LS */
/* plain */
{{{{ 1,94,'B'}, { 1,94,'B'}, { 1,94,'B'}, { 1,94,'B'}}, 0, 0, 0, 1, 1},
NULL},
/* iso-8859-1 */
{{{{ 1,94,'B'}, { 1,96,'A'}, {-1,94,'B'}, {-1,94,'B'}}, 0, 1, 0, 0, 0},
NULL},
/* iso-2022-jp */
{{{{ 1,94,'B'}, {-1,94,'B'}, {-1,94,'B'}, {-1,94,'B'}}, 0, 0, 0, 1, 0},
NULL},
/* euc-japan */
{{{{ 1,94,'B'}, { 2,94,'B'}, { 1,94,'J'}, { 2,94,'D'}}, 0, 1, 0, 1, 0},
NULL},
/* iso-2022-int-1 */
{{{{ 1,94,'B'}, { 2,94,'C'}, {-1,94,'B'}, {-1,94,'B'}}, 0, 1, 0, 1, 1},
NULL},
/* iso-2022-kr */
{{{{ 1,94,'B'}, { 2,94,'C'}, {-1,94,'B'}, {-1,94,'B'}}, 0, 1, 0, 0, 1},
NULL},
/* euc-korea */
{{{{ 1,94,'B'}, { 2,94,'C'}, {-1,94,'B'}, {-1,94,'B'}}, 0, 1, 0, 0, 0},
NULL},
/* iso-2022-ss2-8 */
{{{{ 1,94,'B'}, {-1,94,'C'}, { 0,94,'B'}, {-1,94,'B'}}, 0, 1, 0, 0, 0},
NULL},
/* iso-2022-ss2-7 */
{{{{ 1,94,'B'}, {-1,94,'C'}, { 0,94,'B'}, {-1,94,'B'}}, 0, 1, 0, 1, 0},
NULL},
/* shift jis */
{{{{ 1,94,'B'}, { 2,94,'B'}, { 1,94,'J'}, { 2,94,'D'}}, 0, 1, 1, 1, 0},
sjis_to_jis},
};
#endif
static void closeText PARM((TVINFO *));
static int tvChkEvent PARM((TVINFO *, XEvent *));
static void resizeText PARM((TVINFO *, int, int));
static void computeScrlVals PARM((TVINFO *));
static void doCmd PARM((TVINFO *, int));
static void drawTextView PARM((TVINFO *));
static void drawNumLines PARM((TVINFO *));
static void eraseNumLines PARM((TVINFO *));
static void drawTextW PARM((int, SCRL *));
static void clickText PARM((TVINFO *, int, int));
static void keyText PARM((TVINFO *, XKeyEvent *));
static void textKey PARM((TVINFO *, int));
static void doHexAsciiCmd PARM((TVINFO *, int));
static void computeText PARM((TVINFO *));
#ifdef TV_L10N
static int selectCodeset PARM((TVINFO *));
#endif
#ifdef TV_MULTILINGUAL
static void setCodingSpec PARM((TVINFO *, struct coding_spec *));
static void createCsWins PARM((char *));
static void openCsWin PARM((TVINFO *));
static void closeCsWin PARM((TVINFO *));
#endif
/* HEXMODE output looks like this:
0x00000000: 00 11 22 33 44 55 66 77 - 88 99 aa bb cc dd ee ff 0123456789abcdef
0x00000010: 00 11 22 33 44 55 66 77 - 88 99 aa bb cc dd ee ff 0123456789abcdef
etc.
*/
/***************************************************************/
void CreateTextWins(geom, cmtgeom)
const char *geom, *cmtgeom;
{
int i, defwide, defhigh, cmthigh;
XSetWindowAttributes xswa;
TVINFO *tv;
#ifdef TV_MULTILINGUAL
int default_codeset;
#endif
#ifdef TV_L10N
if (!xlocale) {
#endif
mfwide = monofinfo->max_bounds.width;
mfhigh = monofinfo->ascent + monofinfo->descent;
mfascent = monofinfo->ascent;
nbutts = TV_E_NBUTTS; /* # of buttons */
#ifdef TV_L10N
}
else {
mfwide = monofsetinfo->max_logical_extent.width / 2; /* shit! */
mfhigh = monofsetinfo->max_logical_extent.height + 1;
mfascent = mfhigh;
nbutts = TV_J_NBUTTS; /* # of buttons */
}
#endif
#ifdef TV_MULTILINGUAL
{
char *dc = XGetDefault(theDisp, "xv", "codeSet");
if (dc == NULL)
default_codeset = TV_DEFAULT_CODESET;
else {
for (i = 0; i < TV_NCSS; i++) {
if (strcmp(dc, codeSetNames[i]) == 0)
break;
}
if (i >= TV_NCSS) {
if (strcmp(dc, "iso-2022") == 0)
default_codeset = TV_PLAIN;
else {
SetISTR(ISTR_WARNING, "%s: unknown codeset.", dc);
default_codeset = TV_PLAIN;
}
} else
default_codeset = i;
}
}
#endif
/* compute default size of textview windows. should be big enough to
hold an 80x24 text window */
defwide = 80 * mfwide + 2*LRMARGINS + 8 + 20; /* -ish */
defhigh = 24 * mfhigh + TOPMARGIN + BOTMARGIN + 8 + 20; /* ish */
cmthigh = 6 * mfhigh + TOPMARGIN + BOTMARGIN + 8 + 20; /* ish */
/* creates *all* textview windows at once */
for (i=0; i<MAXTVWIN; i++) tinfo[i].win = (Window) None;
for (i=0; i<MAXTVWIN; i++) {
tv = &tinfo[i];
#ifdef TV_MULTILINGUAL
tv->ctx = ml_create_context(ScreenOfDisplay(theDisp, theScreen));
tv->txt = NULL;
tv->cv_text = NULL;
tv->cv_len = 0;
ml_set_charsets(tv->ctx, &coding_spec[TV_PLAIN].coding_system);
#endif
tv->win = CreateWindow((i<CMTWIN) ? "xv text viewer" : "xv image comments",
"XVtextview",
(i<CMTWIN) ? geom : cmtgeom,
defwide,
(i<CMTWIN) ? defhigh : cmthigh,
infofg, infobg, TRUE);
if (!tv->win) FatalError("can't create textview window!");
SetMinSizeWindow(tv->win, MIN_TXTWIDE, MIN_TXTHIGH);
haveWindows = 1;
tv->vis = tv->wasvis = 0;
if (ctrlColor) XSetWindowBackground(theDisp, tv->win, locol);
else XSetWindowBackgroundPixmap(theDisp, tv->win, grayTile);
/* note: everything is sized and positioned in resizeText() */
tv->textW = XCreateSimpleWindow(theDisp, tv->win, 1,1, 100,100,
1,infofg,infobg);
if (!tv->textW) FatalError("can't create textview text window!");
SCCreate(&tv->vscrl, tv->win, 0,0, 1,100, 0,0,0,0,
infofg, infobg, hicol, locol, drawTextW);
SCCreate(&tv->hscrl, tv->win, 0,0, 0,100, 0,0,0,0,
infofg, infobg, hicol, locol, drawTextW);
#ifdef BACKING_STORE
xswa.backing_store = WhenMapped;
XChangeWindowAttributes(theDisp, tv->textW, CWBackingStore, &xswa);
#endif
XSelectInput(theDisp, tv->textW, ExposureMask | ButtonPressMask);
BTCreate(&(tv->but[TV_ASCII]), tv->win, 0,0,BUTTW1,BUTTH,
"Ascii",infofg,infobg,hicol,locol);
BTCreate(&(tv->but[TV_HEX]), tv->win, 0,0,BUTTW1,BUTTH,
"Hex",infofg,infobg,hicol,locol);
BTCreate(&(tv->but[TV_CLOSE]), tv->win, 0,0,BUTTW1,BUTTH,
"Close",infofg,infobg,hicol,locol);
#ifdef TV_L10N
if (xlocale) {
BTCreate(&(tv->but[TV_RESCAN]), tv->win, 0,0,BUTTW2,BUTTH,
"RESCAN",infofg,infobg,hicol,locol);
BTCreate(&(tv->but[TV_USASCII]), tv->win, 0,0,BUTTW2,BUTTH,
"ASCII",infofg,infobg,hicol,locol);
BTCreate(&(tv->but[TV_JIS]), tv->win, 0,0,BUTTW2,BUTTH,
"JIS",infofg,infobg,hicol,locol);
BTCreate(&(tv->but[TV_EUCJ]), tv->win, 0,0,BUTTW2,BUTTH,
"EUC-j",infofg,infobg,hicol,locol);
BTCreate(&(tv->but[TV_MSCODE]), tv->win, 0,0,BUTTW2,BUTTH,
"MS Kanji",infofg,infobg,hicol,locol);
}
#endif
BTCreate(&(tv->nopBut), tv->win, 0,0, (u_int) tv->vscrl.tsize+1,
(u_int) tv->vscrl.tsize+1, "", infofg, infobg, hicol, locol);
tv->nopBut.active = 0;
XMapSubwindows(theDisp, tv->win);
#ifdef TV_MULTILINGUAL
BTCreate(&tv->csbut, tv->win, 0, 0, BUTTW1, BUTTH, "Code Sets",
infofg, infobg, hicol, locol);
#endif
tv->text = (char *) NULL;
tv->textlen = 0;
tv->title[0] = '\0';
#ifdef TV_L10N
tv->code = (xlocale ? LOCALE_DEFAULT : 0);
#endif
#ifdef TV_MULTILINGUAL
tv->ccs = coding_spec[default_codeset];
#endif
}
#ifdef TV_MULTILINGUAL
get_monofont_size(&mfwide, &mfhigh);
/* recalculate sizes. */
defwide = 80 * mfwide + 2*LRMARGINS + 8 + 20; /* -ish */
defhigh = 24 * mfhigh + TOPMARGIN + BOTMARGIN + 8 + 20; /* ish */
cmthigh = 6 * mfhigh + TOPMARGIN + BOTMARGIN + 8 + 20; /* ish */
#endif
for (i=0; i<MAXTVWIN; i++) {
resizeText(&tinfo[i], defwide, (i<CMTWIN) ? defhigh : cmthigh);
XSelectInput(theDisp, tinfo[i].win, ExposureMask | ButtonPressMask |
KeyPressMask | StructureNotifyMask);
}
hasBeenSized = 1; /* we can now start looking at textview events */
#ifdef TV_MULTILINGUAL
createCsWins("+100+100");
#endif
}
/***************************************************************/
int TextView(fname)
const char *fname;
{
/* given a filename, attempts to read in the file and open a textview win */
int filetype;
long textlen;
char *text, buf[512], title[128], rfname[MAXPATHLEN+1];
char *basefname[128]; /* just current fname, no path */
FILE *fp;
char filename[MAXPATHLEN+1];
strncpy(filename, fname, sizeof(filename) - 1);
#ifdef AUTO_EXPAND
Mkvdir(filename);
Dirtovd(filename);
#endif
basefname[0] = '\0';
strncpy(rfname, filename, sizeof(rfname) - 1);
/* see if this file is compressed. if it is, uncompress it, and view
the uncompressed version */
filetype = ReadFileType(filename);
if ((filetype == RFT_COMPRESS) || (filetype == RFT_BZIP2)) {
#ifndef VMS
if (!UncompressFile(filename, rfname, filetype)) return FALSE;
#else
/* chop off trailing '.Z' from friendly displayed basefname, if any */
strncpy (basefname, filename, 128 - 1);
*rindex (basefname, '.') = '\0';
if (!UncompressFile(basefname, rfname, filetype)) return FALSE;
#endif
}
fp = fopen(rfname, "r");
if (!fp) {
sprintf(buf,"Couldn't open '%s': %s", rfname, ERRSTR(errno));
ErrPopUp(buf,"\nOh well");
return FALSE;
}
fseek(fp, 0L, 2);
textlen = ftell(fp);
fseek(fp, 0L, 0);
if (!textlen) {
sprintf(buf, "File '%s' contains no data. (Zero length file.)", rfname);
ErrPopUp(buf, "\nOk");
fclose(fp);
return FALSE;
}
text = (char *) malloc((size_t) textlen + 1);
if (!text) {
sprintf(buf, "Couldn't malloc %ld bytes to read file '%s'",
textlen, rfname);
ErrPopUp(buf, "\nSo what!");
fclose(fp);
return FALSE;
}
if (fread(text, (size_t) 1, (size_t) textlen, fp) != textlen) {
sprintf(buf, "Warning: Couldn't read all of '%s'. Possibly truncated.",
rfname);
ErrPopUp(buf, "\nHmm...");
}
#ifdef TV_MULTILINGUAL
text[textlen] = '\0';
#endif
fclose(fp);
sprintf(title, "File: '%s'", BaseName(fname));
OpenTextView(text, (int) textlen, title, 1);
/* note: text gets freed when window gets closed */
return TRUE;
}
/***************************************************************/
void OpenTextView(text, len, title, freeonclose)
const char *text, *title;
int len, freeonclose;
{
/* opens up a textview window */
TVINFO *tv;
tv = &tinfo[0];
/* kill off old text info */
if (tv->freeonclose && tv->text) free((void *)tv->text);
if (tv->lines) free(tv->lines);
tv->text = (const char *) NULL;
tv->lines = (const char **) NULL;
tv->numlines = tv->textlen = tv->hexmode = 0;
tv->text = text;
tv->textlen = len;
tv->freeonclose = freeonclose;
strncpy(tv->title, title, (size_t) TITLELEN-1);
tv->title[TITLELEN-1] = '\0';
computeText(tv); /* compute # lines and linestarts array */
anyTextUp = 1;
if (!tv->vis) XMapRaised(theDisp, tv->win);
else {
XClearArea(theDisp, tv->win, 0, 0, (u_int) tv->wide, (u_int) 30, False);
drawTextView(tv);
}
tv->vis = 1;
SCSetVal(&(tv->vscrl), 0);
SCSetVal(&(tv->hscrl), 0);
computeScrlVals(tv);
}
/***************************************************************/
void OpenCommentText()
{
/* opens up the reserved 'comment' textview window */
TVINFO *tv;
tv = &tinfo[CMTWIN];
commentUp = 1;
XMapRaised(theDisp, tv->win);
tv->vis = 1;
ChangeCommentText();
}
/***************************************************************/
void CloseCommentText()
{
/* closes the reserved 'comment' textview window */
closeText(&tinfo[CMTWIN]);
commentUp = 0;
}
/***************************************************************/
void ChangeCommentText()
{
/* called when 'picComments' changes */
TVINFO *tv;
tv = &tinfo[CMTWIN];
tv->text = picComments;
tv->textlen = (tv->text) ? strlen(tv->text) : 0;
tv->freeonclose = 0;
if (strlen(fullfname))
snprintf(tv->title, TITLELEN, "File: '%s'", BaseName(fullfname));
else
sprintf(tv->title, "<no file loaded>");
computeText(tv); /* compute # lines and linestarts array */
if (tv->vis) {
XClearArea(theDisp, tv->win, 0, 0, (u_int) tv->wide, (u_int) 30, False);
drawTextView(tv);
}
SCSetVal(&(tv->vscrl), 0);
SCSetVal(&(tv->hscrl), 0);
computeScrlVals(tv);
}
/***************************************************************/
void HideTextWindows()
{
int i;
for (i=0; i<MAXTVWIN; i++) {
if (tinfo[i].vis) {
XUnmapWindow(theDisp, tinfo[i].win);
tinfo[i].wasvis = 1;
tinfo[i].vis = 0;
}
}
}
/***************************************************************/
void UnHideTextWindows()
{
int i;
for (i=0; i<MAXTVWIN; i++) {
if (tinfo[i].wasvis) {
XMapRaised(theDisp, tinfo[i].win);
tinfo[i].wasvis = 0;
tinfo[i].vis = 1;
}
}
}
/***************************************************************/
void RaiseTextWindows()
{
int i;
for (i=0; i<MAXTEXTWIN; i++) {
if (tinfo[i].vis) {
XRaiseWindow(theDisp, tinfo[i].win);
}
}
}
/***************************************************************/
void SetTextCursor(c)
Cursor c;
{
int i;
for (i=0; i<MAXTVWIN; i++) {
if (haveWindows && tinfo[i].win) XDefineCursor(theDisp, tinfo[i].win, c);
}
}
/***************************************************************/
void KillTextWindows()
{
int i;
for (i=0; i<MAXTVWIN; i++) {
if (haveWindows && tinfo[i].win) XDestroyWindow(theDisp, tinfo[i].win);
}
}
/***************************************************************/
int TextCheckEvent(xev, retP, doneP)
XEvent *xev;
int *retP, *doneP;
{
int i;
event_retP = retP; /* so don't have to pass these all over the place */
event_doneP = doneP;
for (i=0; i<MAXTVWIN; i++) {
if (tvChkEvent(&tinfo[i], xev)) break;
}
if (i<MAXTVWIN) return 1;
return 0;
}
/***************************************************************/
int TextDelWin(win)
Window win;
{
/* got a delete window request. see if the window is a textview window,
and close accordingly. Return 1 if event was eaten */
int i;
for (i=0; i<MAXTVWIN; i++) {
if (tinfo[i].win == win) {
closeText(&tinfo[i]);
return 1;
}
}
return 0;
}
/**************************************************************/
/*** INTERNAL FUNCTIONS ***/
/**************************************************************/
/***************************************************************/
static void closeText(tv)
TVINFO *tv;
{
/* closes specified textview window */
int i;
XUnmapWindow(theDisp, tv->win);
tv->vis = 0;
for (i=0; i<MAXTEXTWIN && !tinfo[i].vis; i++);
if (i==MAXTEXTWIN) anyTextUp = 0;
/* free all info for this textview window */
if (tv->freeonclose && tv->text) free((void *)tv->text);
if (tv->lines) free(tv->lines);
tv->text = (const char *) NULL;
tv->lines = (const char **) NULL;
tv->numlines = tv->textlen = tv->hexmode = 0;
#ifdef TV_MULTILINGUAL
closeCsWin(tv);
#endif
}
/***************************************************************/
static int tvChkEvent(tv, xev)
TVINFO *tv;
XEvent *xev;
{
/* checks event to see if it's a text-window related thing. If it
is, it eats the event and returns '1', otherwise '0'. */
int rv;
rv = 1;
if (!hasBeenSized) return 0; /* ignore everythng until we get 1st Resize */
if (xev->type == Expose) {
int x,y,w,h;
XExposeEvent *e = (XExposeEvent *) xev;
x = e->x; y = e->y; w = e->width; h = e->height;
/* throw away excess redraws for 'dumb' windows */
if (e->count > 0 && (e->window == tv->vscrl.win ||
e->window == tv->hscrl.win)) {}
else if (e->window == tv->vscrl.win) SCRedraw(&(tv->vscrl));
else if (e->window == tv->hscrl.win) SCRedraw(&(tv->hscrl));
else if (e->window == tv->win || e->window == tv->textW) { /* smart wins */
/* group individual expose rects into a single expose region */
int count;
Region reg;
XRectangle rect;
XEvent evt;
xvbcopy((char *) e, (char *) &evt, sizeof(XEvent));
reg = XCreateRegion();
count = 0;
do {
if (DEBUG) fprintf(stderr," expose: %s %d,%d %dx%d\n",
(e->window == tv->win) ? "tv win" : "text win",
rect.x, rect.y, rect.width, rect.height);
rect.x = evt.xexpose.x;
rect.y = evt.xexpose.y;
rect.width = evt.xexpose.width;
rect.height = evt.xexpose.height;
XUnionRectWithRegion(&rect, reg, reg);
count++;
} while (XCheckWindowEvent(theDisp, evt.xexpose.window,
ExposureMask, &evt));
XClipBox(reg, &rect); /* bounding box of region */
XSetRegion(theDisp, theGC, reg);
if (DEBUG) {
fprintf(stderr,"win = %lx, tv->win = %lx, textW = %lx\n",
e->window, tv->win, tv->textW);
fprintf(stderr,"grouped %d expose events into %d,%d %dx%d rect\n",
count, rect.x, rect.y, rect.width, rect.height);
}
if (e->window == tv->win) drawTextView(tv);
else if (e->window == tv->textW) drawTextW(0, &(tv->vscrl));
XSetClipMask(theDisp, theGC, None);
XDestroyRegion(reg);
}
else rv = 0;
}
else if (xev->type == ButtonPress) {
XButtonEvent *e = (XButtonEvent *) xev;
int x,y;
x = e->x; y = e->y;
if (e->button == Button1) {
if (e->window == tv->win) clickText(tv,x,y);
else if (e->window == tv->vscrl.win) SCTrack(&(tv->vscrl),x,y);
else if (e->window == tv->hscrl.win) SCTrack(&(tv->hscrl),x,y);
else if (e->window == tv->textW) { }
else rv = 0;
}
else if (e->button == Button4) { /* note min vs. max, + vs. - */
/* scroll regardless of where we are in the text window */
if (e->window == tv->win ||
e->window == tv->vscrl.win ||
e->window == tv->hscrl.win ||
e->window == tv->textW)
{
SCRL *sp=&(tv->vscrl);
int halfpage=sp->page/2;
if (sp->val > sp->min+halfpage)
SCSetVal(sp,sp->val-halfpage);
else
SCSetVal(sp,sp->min);
}
else rv = 0;
}
else if (e->button == Button5) { /* note max vs. min, - vs. + */
/* scroll regardless of where we are in the text window */
if (e->window == tv->win ||
e->window == tv->vscrl.win ||
e->window == tv->hscrl.win ||
e->window == tv->textW)
{
SCRL *sp=&(tv->vscrl);
int halfpage=sp->page/2;
if (sp->val < sp->max-halfpage)
SCSetVal(sp,sp->val+halfpage);
else
SCSetVal(sp,sp->max);
}
else rv = 0;
}
else rv = 0;
}
else if (xev->type == KeyPress) {
XKeyEvent *e = (XKeyEvent *) xev;
if (e->window == tv->win) keyText(tv, e);
else rv = 0;
}
else if (xev->type == ConfigureNotify) {
XConfigureEvent *e = (XConfigureEvent *) xev;
if (e->window == tv->win) {
if (DEBUG)
fprintf(stderr,"textview got a configure event (%dx%d)\n",
e->width, e->height);
if (tv->wide != e->width || tv->high != e->height) {
if (DEBUG) fprintf(stderr,"Forcing a redraw! (from configure)\n");
XClearArea(theDisp, tv->win, 0, 0,
(u_int) e->width, (u_int) e->height, True);
resizeText(tv, e->width, e->height);
}
}
else rv = 0;
}
else rv = 0;
return rv;
}
/***************************************************************/
static void resizeText(tv,w,h)
TVINFO *tv;
int w,h;
{
int i, maxw, maxh;
XSizeHints hints;
#ifndef TV_MULTILINGUAL
if (tv->wide == w && tv->high == h) return; /* no change in size */
#endif
if (XGetNormalHints(theDisp, tv->win, &hints)) {
hints.width = w;
hints.height = h;
hints.flags |= USSize;
XSetNormalHints(theDisp, tv->win, &hints);
}
tv->wide = w; tv->high = h;
/* compute maximum size of text window */
maxw = tv->wide - (2*LRMARGINS) - (tv->vscrl.tsize+1) - 2;
maxh = tv->high - (TOPMARGIN + BOTMARGIN) - (tv->hscrl.tsize+1) - 2;
tv->chwide = ((maxw - 6) / mfwide);
tv->chhigh = ((maxh - 6) / mfhigh);
tv->twWide = tv->chwide * mfwide + 6;
tv->twHigh = tv->chhigh * mfhigh + 6;
XMoveResizeWindow(theDisp, tv->textW, LRMARGINS, TOPMARGIN,
(u_int) tv->twWide, (u_int) tv->twHigh);
for (i=0; i<TV_E_NBUTTS; i++) {
tv->but[i].x = tv->wide - (TV_E_NBUTTS-i) * (BUTTW1+5);
tv->but[i].y = tv->high - BUTTH - 5;
}
#ifdef TV_MULTILINGUAL
tv->csbut.x = 5;
tv->csbut.y = tv->high - BUTTH - 5;
#endif
#ifdef TV_L10N
if (xlocale) {
for (; i<TV_J_NBUTTS; i++) {
tv->but[i].x = 5 + (i-TV_E_NBUTTS) * (BUTTW2+5);
tv->but[i].y = tv->high - BUTTH - 5;
}
}
#endif
computeScrlVals(tv);
tv->nopBut.x = LRMARGINS + tv->twWide + 1;
tv->nopBut.y = TOPMARGIN + tv->twHigh + 1;
}
/***************************************************************/
static void computeScrlVals(tv)
TVINFO *tv;
{
int hmax, hpag, vmax, vpag;
if (tv->hexmode) {
hmax = 80 - tv->chwide;
vmax = tv->hexlines - tv->chhigh;
}
else { /* ASCII mode */
hmax = tv->maxwide - tv->chwide;
vmax = tv->numlines - tv->chhigh - 1;
}
hpag = tv->chwide / 4;
vpag = tv->chhigh - 1;
SCChange(&tv->vscrl, LRMARGINS + tv->twWide+1, TOPMARGIN,
1, tv->twHigh, 0, vmax, tv->vscrl.val, vpag);
SCChange(&tv->hscrl, LRMARGINS, TOPMARGIN + tv->twHigh + 1,
0, tv->twWide, 0, hmax, tv->hscrl.val, hpag);
}
/***************************************************************/
static void doCmd(tv, cmd)
TVINFO *tv;
int cmd;
{
switch (cmd) {
case TV_ASCII: doHexAsciiCmd(tv, 0); break;
case TV_HEX: doHexAsciiCmd(tv, 1); break;
case TV_CLOSE: if (tv == &tinfo[CMTWIN]) CloseCommentText();
else closeText(tv);
break;
#ifdef TV_L10N
case TV_RESCAN:
tv->code = selectCodeset(tv);
drawTextW(0, &tv->vscrl);
break;
case TV_USASCII:
tv->code = LOCALE_USASCII;
drawTextW(0, &tv->vscrl);
break;
case TV_JIS:
tv->code = LOCALE_JIS;
drawTextW(0, &tv->vscrl);
break;
case TV_EUCJ:
tv->code = LOCALE_EUCJ;
drawTextW(0, &tv->vscrl);
break;
case TV_MSCODE:
tv->code = LOCALE_MSCODE;
drawTextW(0, &tv->vscrl);
break;
#endif /* TV_L10N */
}
}
/***************************************************************/
static void drawTextView(tv)
TVINFO *tv;
{
/* redraw the outer window */
int i, y;
if (strlen(tv->title)) { /* draw the title */
y = 5;
XSetForeground(theDisp, theGC, infobg);
XFillRectangle(theDisp, tv->win, theGC, 5+1, y+1,
(u_int) StringWidth(tv->title)+6, (u_int) CHIGH+4);
XSetForeground(theDisp, theGC, infofg);
XDrawRectangle(theDisp, tv->win, theGC, 5, y,