Label.c revision 421c997b
17a84e134Smrg/***********************************************************
27a84e134Smrg
37a84e134SmrgCopyright 1987, 1988, 1994, 1998  The Open Group
47a84e134Smrg
57a84e134SmrgPermission to use, copy, modify, distribute, and sell this software and its
67a84e134Smrgdocumentation for any purpose is hereby granted without fee, provided that
77a84e134Smrgthe above copyright notice appear in all copies and that both that
87a84e134Smrgcopyright notice and this permission notice appear in supporting
97a84e134Smrgdocumentation.
107a84e134Smrg
117a84e134SmrgThe above copyright notice and this permission notice shall be included in
127a84e134Smrgall copies or substantial portions of the Software.
137a84e134Smrg
147a84e134SmrgTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
157a84e134SmrgIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
167a84e134SmrgFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
177a84e134SmrgOPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
187a84e134SmrgAN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
197a84e134SmrgCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
207a84e134Smrg
217a84e134SmrgExcept as contained in this notice, the name of The Open Group shall not be
227a84e134Smrgused in advertising or otherwise to promote the sale, use or other dealings
237a84e134Smrgin this Software without prior written authorization from The Open Group.
247a84e134Smrg
257a84e134Smrg
267a84e134SmrgCopyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
277a84e134Smrg
287a84e134Smrg                        All Rights Reserved
297a84e134Smrg
30421c997bSmrgPermission to use, copy, modify, and distribute this software and its
31421c997bSmrgdocumentation for any purpose and without fee is hereby granted,
327a84e134Smrgprovided that the above copyright notice appear in all copies and that
33421c997bSmrgboth that copyright notice and this permission notice appear in
347a84e134Smrgsupporting documentation, and that the name of Digital not be
357a84e134Smrgused in advertising or publicity pertaining to distribution of the
36421c997bSmrgsoftware without specific, written prior permission.
377a84e134Smrg
387a84e134SmrgDIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
397a84e134SmrgALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
407a84e134SmrgDIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
417a84e134SmrgANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
427a84e134SmrgWHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
437a84e134SmrgARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
447a84e134SmrgSOFTWARE.
457a84e134Smrg
467a84e134Smrg******************************************************************/
477a84e134Smrg
487a84e134Smrg#ifdef HAVE_CONFIG_H
497a84e134Smrg#include <config.h>
507a84e134Smrg#endif
517a84e134Smrg#include <stdio.h>
527a84e134Smrg#include <ctype.h>
537a84e134Smrg#include <X11/IntrinsicP.h>
547a84e134Smrg#include <X11/StringDefs.h>
557a84e134Smrg#include <X11/Xos.h>
567a84e134Smrg#include <X11/Xmu/Converters.h>
577a84e134Smrg#include <X11/Xmu/Drawing.h>
587a84e134Smrg#include <X11/Xaw/LabelP.h>
597a84e134Smrg#include <X11/Xaw/XawInit.h>
607a84e134Smrg#include "Private.h"
617a84e134Smrg
627a84e134Smrg#define streq(a, b)		(strcmp((a), (b)) == 0)
637a84e134Smrg
647a84e134Smrg#define MULTI_LINE_LABEL 32767
657a84e134Smrg
667a84e134Smrg#ifdef CRAY
677a84e134Smrg#define WORD64
687a84e134Smrg#endif
697a84e134Smrg
707a84e134Smrg/*
717a84e134Smrg * Class Methods
727a84e134Smrg */
737a84e134Smrgstatic void XawLabelClassInitialize(void);
747a84e134Smrgstatic void XawLabelDestroy(Widget);
757a84e134Smrgstatic void XawLabelInitialize(Widget, Widget, ArgList, Cardinal*);
767a84e134Smrgstatic XtGeometryResult XawLabelQueryGeometry(Widget, XtWidgetGeometry*,
777a84e134Smrg					      XtWidgetGeometry*);
787a84e134Smrgstatic void XawLabelRedisplay(Widget, XEvent*, Region);
797a84e134Smrgstatic void XawLabelResize(Widget);
807a84e134Smrgstatic Boolean XawLabelSetValues(Widget, Widget, Widget,
817a84e134Smrg				 ArgList, Cardinal*);
827a84e134Smrg
837a84e134Smrg/*
847a84e134Smrg * Prototypes
857a84e134Smrg */
867a84e134Smrg#ifdef WORD64
877a84e134Smrgstatic int _XawLabelWidth16(XFontStruct*, char*, int);
887a84e134Smrgstatic void _XawLabelDraw16(Display*, Drawable, GC, int, int, char*, int);
897a84e134Smrg#endif
907a84e134Smrgstatic void compute_bitmap_offsets(LabelWidget);
917a84e134Smrgstatic void GetGrayGC(LabelWidget);
927a84e134Smrgstatic void GetNormalGC(LabelWidget);
937a84e134Smrgstatic void _Reposition(LabelWidget, unsigned int, unsigned int,
947a84e134Smrg			Position*, Position*);
957a84e134Smrgstatic void set_bitmap_info(LabelWidget);
967a84e134Smrgstatic void SetTextWidthAndHeight(LabelWidget);
977a84e134Smrg
987a84e134Smrg/*
997a84e134Smrg * Initialization
1007a84e134Smrg */
1017a84e134Smrg#define offset(field) XtOffsetOf(LabelRec, field)
1027a84e134Smrgstatic XtResource resources[] = {
1037a84e134Smrg  {
1047a84e134Smrg    XtNforeground,
1057a84e134Smrg    XtCForeground,
1067a84e134Smrg    XtRPixel,
1077a84e134Smrg    sizeof(Pixel),
1087a84e134Smrg    offset(label.foreground),
1097a84e134Smrg    XtRString,
1107a84e134Smrg    XtDefaultForeground
1117a84e134Smrg  },
1127a84e134Smrg  {
1137a84e134Smrg    XtNfont,
1147a84e134Smrg    XtCFont,
1157a84e134Smrg    XtRFontStruct,
1167a84e134Smrg    sizeof(XFontStruct*),
1177a84e134Smrg    offset(label.font),
1187a84e134Smrg    XtRString,
1197a84e134Smrg    XtDefaultFont
1207a84e134Smrg  },
1217a84e134Smrg  {
1227a84e134Smrg    XtNfontSet,
1237a84e134Smrg    XtCFontSet,
1247a84e134Smrg    XtRFontSet,
1257a84e134Smrg    sizeof(XFontSet),
1267a84e134Smrg    offset(label.fontset),
1277a84e134Smrg    XtRString,
1287a84e134Smrg    XtDefaultFontSet
1297a84e134Smrg  },
1307a84e134Smrg  {
1317a84e134Smrg    XtNlabel,
1327a84e134Smrg    XtCLabel,
1337a84e134Smrg    XtRString,
1347a84e134Smrg    sizeof(String),
1357a84e134Smrg    offset(label.label),
1367a84e134Smrg    XtRString,
1377a84e134Smrg    NULL
1387a84e134Smrg  },
1397a84e134Smrg  {
1407a84e134Smrg    XtNencoding,
1417a84e134Smrg    XtCEncoding,
1427a84e134Smrg    XtRUnsignedChar,
1437a84e134Smrg    sizeof(unsigned char),
1447a84e134Smrg    offset(label.encoding),
1457a84e134Smrg    XtRImmediate,
1467a84e134Smrg    (XtPointer)XawTextEncoding8bit
1477a84e134Smrg  },
1487a84e134Smrg  {
1497a84e134Smrg    XtNjustify,
1507a84e134Smrg    XtCJustify,
1517a84e134Smrg    XtRJustify,
1527a84e134Smrg    sizeof(XtJustify),
1537a84e134Smrg    offset(label.justify),
1547a84e134Smrg    XtRImmediate,
1557a84e134Smrg    (XtPointer)XtJustifyCenter
1567a84e134Smrg  },
1577a84e134Smrg  {
1587a84e134Smrg    XtNinternalWidth,
1597a84e134Smrg    XtCWidth,
1607a84e134Smrg    XtRDimension,
1617a84e134Smrg    sizeof(Dimension),
1627a84e134Smrg    offset(label.internal_width),
1637a84e134Smrg    XtRImmediate,
1647a84e134Smrg    (XtPointer)4
1657a84e134Smrg  },
1667a84e134Smrg  {
1677a84e134Smrg    XtNinternalHeight,
1687a84e134Smrg    XtCHeight,
1697a84e134Smrg    XtRDimension,
1707a84e134Smrg    sizeof(Dimension),
1717a84e134Smrg    offset(label.internal_height),
1727a84e134Smrg    XtRImmediate,
1737a84e134Smrg    (XtPointer)2
1747a84e134Smrg  },
1757a84e134Smrg  {
1767a84e134Smrg    XtNleftBitmap,
1777a84e134Smrg    XtCLeftBitmap,
1787a84e134Smrg    XtRBitmap,
1797a84e134Smrg    sizeof(Pixmap),
1807a84e134Smrg    offset(label.left_bitmap),
1817a84e134Smrg    XtRImmediate,
1827a84e134Smrg    (XtPointer)None
1837a84e134Smrg  },
1847a84e134Smrg  {
1857a84e134Smrg    XtNbitmap,
1867a84e134Smrg    XtCPixmap,
1877a84e134Smrg    XtRBitmap,
1887a84e134Smrg    sizeof(Pixmap),
1897a84e134Smrg    offset(label.pixmap),
1907a84e134Smrg    XtRImmediate,
1917a84e134Smrg    (XtPointer)None
1927a84e134Smrg  },
1937a84e134Smrg  {
1947a84e134Smrg    XtNresize,
1957a84e134Smrg    XtCResize,
1967a84e134Smrg    XtRBoolean,
1977a84e134Smrg    sizeof(Boolean),
1987a84e134Smrg    offset(label.resize),
1997a84e134Smrg    XtRImmediate,
2007a84e134Smrg    (XtPointer)True
2017a84e134Smrg  },
2027a84e134Smrg  {
2037a84e134Smrg    XtNlabelX,
2047a84e134Smrg    XtCPosition,
2057a84e134Smrg    XtRPosition,
2067a84e134Smrg    sizeof(Position),
2077a84e134Smrg    offset(label.label_x),
2087a84e134Smrg    XtRImmediate,
2097a84e134Smrg    (XtPointer)0
2107a84e134Smrg  },
2117a84e134Smrg  {
2127a84e134Smrg    XtNlabelY,
2137a84e134Smrg    XtCPosition,
2147a84e134Smrg    XtRPosition,
2157a84e134Smrg    sizeof(Position),
2167a84e134Smrg    offset(label.label_y),
2177a84e134Smrg    XtRImmediate,
2187a84e134Smrg    (XtPointer)0
2197a84e134Smrg  },
2207a84e134Smrg};
2217a84e134Smrg#undef offset
2227a84e134Smrg
2237a84e134Smrg#define Superclass (&simpleClassRec)
2247a84e134SmrgLabelClassRec labelClassRec = {
2257a84e134Smrg  /* core */
2267a84e134Smrg  {
2277a84e134Smrg    (WidgetClass)&simpleClassRec,	/* superclass */
2287a84e134Smrg    "Label",				/* class_name */
2297a84e134Smrg    sizeof(LabelRec),			/* widget_size */
2307a84e134Smrg    XawLabelClassInitialize,		/* class_initialize */
2317a84e134Smrg    NULL,				/* class_part_initialize */
2327a84e134Smrg    False,				/* class_inited */
2337a84e134Smrg    XawLabelInitialize,			/* initialize */
2347a84e134Smrg    NULL,				/* initialize_hook */
2357a84e134Smrg    XtInheritRealize,			/* realize */
2367a84e134Smrg    NULL,				/* actions */
2377a84e134Smrg    0,					/* num_actions */
2387a84e134Smrg    resources,				/* resources */
2397a84e134Smrg    XtNumber(resources),		/* num_resources */
2407a84e134Smrg    NULLQUARK,				/* xrm_class */
2417a84e134Smrg    True,				/* compress_motion */
2427a84e134Smrg    True,				/* compress_exposure */
2437a84e134Smrg    True,				/* compress_enterleave */
2447a84e134Smrg    False,				/* visible_interest */
2457a84e134Smrg    XawLabelDestroy,			/* destroy */
2467a84e134Smrg    XawLabelResize,			/* resize */
2477a84e134Smrg    XawLabelRedisplay,			/* expose */
2487a84e134Smrg    XawLabelSetValues,			/* set_values */
2497a84e134Smrg    NULL,				/* set_values_hook */
2507a84e134Smrg    XtInheritSetValuesAlmost,		/* set_values_almost */
2517a84e134Smrg    NULL,				/* get_values_hook */
2527a84e134Smrg    NULL,				/* accept_focus */
2537a84e134Smrg    XtVersion,				/* version */
2547a84e134Smrg    NULL,				/* callback_private */
2557a84e134Smrg    NULL,				/* tm_table */
2567a84e134Smrg    XawLabelQueryGeometry,		/* query_geometry */
2577a84e134Smrg    XtInheritDisplayAccelerator,	/* display_accelerator */
2587a84e134Smrg    NULL,				/* extension */
2597a84e134Smrg  },
2607a84e134Smrg  /* simple */
2617a84e134Smrg  {
2627a84e134Smrg    XtInheritChangeSensitive,		/* change_sensitive */
2637a84e134Smrg  },
2647a84e134Smrg  /* label */
2657a84e134Smrg  {
2667a84e134Smrg    NULL,				/* extension */
2677a84e134Smrg  }
2687a84e134Smrg};
2697a84e134Smrg
2707a84e134SmrgWidgetClass labelWidgetClass = (WidgetClass)&labelClassRec;
2717a84e134Smrg
2727a84e134Smrg/*
2737a84e134Smrg * Implementation
2747a84e134Smrg */
2757a84e134Smrgstatic void
2767a84e134SmrgXawLabelClassInitialize(void)
2777a84e134Smrg{
2787a84e134Smrg    XawInitializeWidgetSet();
2797a84e134Smrg    XtAddConverter(XtRString, XtRJustify, XmuCvtStringToJustify, NULL, 0);
2807a84e134Smrg    XtSetTypeConverter(XtRJustify, XtRString, XmuCvtJustifyToString,
2817a84e134Smrg		       NULL, 0, XtCacheNone, NULL);
2827a84e134Smrg}
2837a84e134Smrg
2847a84e134Smrg#ifndef WORD64
2857a84e134Smrg#define TXT16 XChar2b
2867a84e134Smrg#else
2877a84e134Smrg#define TXT16 char
2887a84e134Smrg
2897a84e134Smrgstatic XChar2b *buf2b;
2907a84e134Smrgstatic int buf2blen = 0;
2917a84e134Smrg
2927a84e134Smrgstatic int
2937a84e134Smrg_XawLabelWidth16(XFontStruct *fs, char *str, int n)
2947a84e134Smrg{
2957a84e134Smrg    int i;
2967a84e134Smrg    XChar2b *ptr;
2977a84e134Smrg
2987a84e134Smrg    if (n > buf2blen) {
2997a84e134Smrg	buf2b = (XChar2b *)XtRealloc((char *)buf2b, n * sizeof(XChar2b));
3007a84e134Smrg	buf2blen = n;
3017a84e134Smrg    }
3027a84e134Smrg    for (ptr = buf2b, i = n; --i >= 0; ptr++) {
3037a84e134Smrg	ptr->byte1 = *str++;
3047a84e134Smrg	ptr->byte2 = *str++;
3057a84e134Smrg    }
3067a84e134Smrg
3077a84e134Smrg    return (XTextWidth16(fs, buf2b, n));
3087a84e134Smrg}
3097a84e134Smrg
3107a84e134Smrgstatic void
3117a84e134Smrg_XawLabelDraw16(Display *dpy, Drawable d, GC gc, int x, int y,
3127a84e134Smrg		char *str, int n)
3137a84e134Smrg{
3147a84e134Smrg    int i;
3157a84e134Smrg    XChar2b *ptr;
3167a84e134Smrg
3177a84e134Smrg    if (n > buf2blen) {
3187a84e134Smrg	buf2b = (XChar2b *)XtRealloc((char *)buf2b, n * sizeof(XChar2b));
3197a84e134Smrg	buf2blen = n;
3207a84e134Smrg    }
3217a84e134Smrg    for (ptr = buf2b, i = n; --i >= 0; ptr++) {
3227a84e134Smrg	ptr->byte1 = *str++;
3237a84e134Smrg	ptr->byte2 = *str++;
3247a84e134Smrg    }
3257a84e134Smrg    XDrawString16(dpy, d, gc, x, y, buf2b, n);
3267a84e134Smrg}
3277a84e134Smrg
3287a84e134Smrg#define XTextWidth16 _XawLabelWidth16
3297a84e134Smrg#define XDrawString16 _XawLabelDraw16
3307a84e134Smrg#endif /* WORD64 */
3317a84e134Smrg
3327a84e134Smrg/*
3337a84e134Smrg * Calculate width and height of displayed text in pixels
3347a84e134Smrg */
3357a84e134Smrgstatic void
3367a84e134SmrgSetTextWidthAndHeight(LabelWidget lw)
3377a84e134Smrg{
3387a84e134Smrg    XFontStruct	*fs = lw->label.font;
3397a84e134Smrg    char *nl;
3407a84e134Smrg
3417a84e134Smrg    if (lw->label.pixmap != None) {
3427a84e134Smrg	Window root;
3437a84e134Smrg	int x, y;
3447a84e134Smrg	unsigned int width, height, bw, depth;
3457a84e134Smrg
3467a84e134Smrg	if (XGetGeometry(XtDisplay(lw), lw->label.pixmap, &root, &x, &y,
3477a84e134Smrg		       &width, &height, &bw, &depth)) {
3487a84e134Smrg	    lw->label.label_height = height;
3497a84e134Smrg	    lw->label.label_width = width;
3507a84e134Smrg	    lw->label.label_len = depth;
3517a84e134Smrg	    return;
3527a84e134Smrg	}
3537a84e134Smrg    }
3547a84e134Smrg    if (lw->simple.international == True) {
3557a84e134Smrg	XFontSet	fset = lw->label.fontset;
3567a84e134Smrg	XFontSetExtents *ext = XExtentsOfFontSet(fset);
3577a84e134Smrg
3587a84e134Smrg	lw->label.label_height = ext->max_ink_extent.height;
3597a84e134Smrg	if (lw->label.label == NULL) {
3607a84e134Smrg	    lw->label.label_len = 0;
3617a84e134Smrg	    lw->label.label_width = 0;
3627a84e134Smrg	}
3637a84e134Smrg	else if ((nl = index(lw->label.label, '\n')) != NULL) {
3647a84e134Smrg	    char *label;
3657a84e134Smrg
3667a84e134Smrg	    lw->label.label_len = MULTI_LINE_LABEL;
3677a84e134Smrg	    lw->label.label_width = 0;
3687a84e134Smrg	    for (label = lw->label.label; nl != NULL; nl = index(label, '\n')) {
3697a84e134Smrg		int width = XmbTextEscapement(fset, label, (int)(nl - label));
3707a84e134Smrg
3717a84e134Smrg		if (width > (int)lw->label.label_width)
3727a84e134Smrg		    lw->label.label_width = width;
3737a84e134Smrg		label = nl + 1;
3747a84e134Smrg		if (*label)
3757a84e134Smrg		    lw->label.label_height += ext->max_ink_extent.height;
3767a84e134Smrg	    }
3777a84e134Smrg	    if (*label) {
3787a84e134Smrg		int width = XmbTextEscapement(fset, label, strlen(label));
3797a84e134Smrg
3807a84e134Smrg		if (width > (int)lw->label.label_width)
3817a84e134Smrg		    lw->label.label_width = width;
3827a84e134Smrg	    }
3837a84e134Smrg	}
3847a84e134Smrg	else {
3857a84e134Smrg	    lw->label.label_len = strlen(lw->label.label);
3867a84e134Smrg	    lw->label.label_width =
3877a84e134Smrg		XmbTextEscapement(fset, lw->label.label, lw->label.label_len);
3887a84e134Smrg	}
3897a84e134Smrg    }
3907a84e134Smrg    else {
3917a84e134Smrg	lw->label.label_height = fs->max_bounds.ascent + fs->max_bounds.descent;
3927a84e134Smrg	if (lw->label.label == NULL) {
3937a84e134Smrg	    lw->label.label_len = 0;
3947a84e134Smrg	    lw->label.label_width = 0;
3957a84e134Smrg	}
3967a84e134Smrg	else if ((nl = index(lw->label.label, '\n')) != NULL) {
3977a84e134Smrg	    char *label;
3987a84e134Smrg
3997a84e134Smrg	    lw->label.label_len = MULTI_LINE_LABEL;
4007a84e134Smrg	    lw->label.label_width = 0;
4017a84e134Smrg	    for (label = lw->label.label; nl != NULL; nl = index(label, '\n')) {
4027a84e134Smrg		int width;
4037a84e134Smrg
4047a84e134Smrg		if (lw->label.encoding)
4057a84e134Smrg		    width = XTextWidth16(fs, (TXT16*)label, (int)(nl - label) / 2);
4067a84e134Smrg		else
4077a84e134Smrg		    width = XTextWidth(fs, label, (int)(nl - label));
4087a84e134Smrg		if (width > (int)lw->label.label_width)
4097a84e134Smrg		    lw->label.label_width = width;
4107a84e134Smrg		label = nl + 1;
4117a84e134Smrg		if (*label)
4127a84e134Smrg		    lw->label.label_height +=
4137a84e134Smrg			fs->max_bounds.ascent + fs->max_bounds.descent;
4147a84e134Smrg	    }
4157a84e134Smrg	    if (*label) {
4167a84e134Smrg		int width = XTextWidth(fs, label, strlen(label));
4177a84e134Smrg
4187a84e134Smrg		if (lw->label.encoding)
4197a84e134Smrg		    width = XTextWidth16(fs, (TXT16*)label, strlen(label) / 2);
4207a84e134Smrg		else
4217a84e134Smrg		    width = XTextWidth(fs, label, strlen(label));
4227a84e134Smrg		if (width > (int) lw->label.label_width)
4237a84e134Smrg		    lw->label.label_width = width;
4247a84e134Smrg	    }
4257a84e134Smrg	}
4267a84e134Smrg	else {
4277a84e134Smrg	    lw->label.label_len = strlen(lw->label.label);
4287a84e134Smrg	    if (lw->label.encoding)
4297a84e134Smrg		lw->label.label_width =
4307a84e134Smrg		    XTextWidth16(fs, (TXT16*)lw->label.label,
4317a84e134Smrg			   (int)lw->label.label_len / 2);
4327a84e134Smrg	    else
4337a84e134Smrg		lw->label.label_width =
4347a84e134Smrg	      XTextWidth(fs, lw->label.label, (int)lw->label.label_len);
4357a84e134Smrg	}
4367a84e134Smrg    }
4377a84e134Smrg}
4387a84e134Smrg
4397a84e134Smrgstatic void
4407a84e134SmrgGetNormalGC(LabelWidget lw)
4417a84e134Smrg{
4427a84e134Smrg    XGCValues	values;
4437a84e134Smrg
4447a84e134Smrg    values.foreground	= lw->label.foreground;
4457a84e134Smrg    values.background	= lw->core.background_pixel;
4467a84e134Smrg    values.font		= lw->label.font->fid;
4477a84e134Smrg    values.graphics_exposures = False;
4487a84e134Smrg
4497a84e134Smrg    if (lw->simple.international == True)
4507a84e134Smrg    /* Since Xmb/wcDrawString eats the font, I must use XtAllocateGC */
4517a84e134Smrg	lw->label.normal_GC = XtAllocateGC((Widget)lw, 0,
4527a84e134Smrg					   GCForeground | GCBackground |
4537a84e134Smrg					   GCGraphicsExposures,
4547a84e134Smrg					   &values, GCFont, 0);
4557a84e134Smrg    else
4567a84e134Smrg	lw->label.normal_GC = XtGetGC((Widget)lw,
4577a84e134Smrg				      GCForeground | GCBackground | GCFont |
4587a84e134Smrg				      GCGraphicsExposures, &values);
4597a84e134Smrg}
4607a84e134Smrg
4617a84e134Smrgstatic void
4627a84e134SmrgGetGrayGC(LabelWidget lw)
4637a84e134Smrg{
4647a84e134Smrg    XGCValues	values;
4657a84e134Smrg
4667a84e134Smrg    values.foreground = lw->label.foreground;
4677a84e134Smrg    values.background = lw->core.background_pixel;
4687a84e134Smrg    values.font	      = lw->label.font->fid;
4697a84e134Smrg    values.fill_style = FillTiled;
4707a84e134Smrg    values.tile       = XmuCreateStippledPixmap(XtScreen((Widget)lw),
471421c997bSmrg						lw->label.foreground,
4727a84e134Smrg						lw->core.background_pixel,
4737a84e134Smrg						lw->core.depth);
4747a84e134Smrg    values.graphics_exposures = False;
4757a84e134Smrg
4767a84e134Smrg    lw->label.stipple = values.tile;
4777a84e134Smrg    if (lw->simple.international == True)
4787a84e134Smrg	/* Since Xmb/wcDrawString eats the font, I must use XtAllocateGC */
4797a84e134Smrg	lw->label.gray_GC = XtAllocateGC((Widget)lw, 0,
4807a84e134Smrg					 GCForeground | GCBackground |
4817a84e134Smrg					 GCTile | GCFillStyle |
4827a84e134Smrg					 GCGraphicsExposures,
4837a84e134Smrg					 &values, GCFont, 0);
4847a84e134Smrg	else
485421c997bSmrg	    lw->label.gray_GC = XtGetGC((Widget)lw,
4867a84e134Smrg					GCForeground | GCBackground |
4877a84e134Smrg					GCFont | GCTile | GCFillStyle |
4887a84e134Smrg					GCGraphicsExposures,
4897a84e134Smrg					&values);
4907a84e134Smrg}
4917a84e134Smrg
4927a84e134Smrgstatic void
4937a84e134Smrgcompute_bitmap_offsets(LabelWidget lw)
4947a84e134Smrg{
4957a84e134Smrg    /*
496421c997bSmrg     * bitmap will be eventually be displayed at
4977a84e134Smrg     * (internal_width, internal_height + lbm_y)
4987a84e134Smrg     */
4997a84e134Smrg    if (lw->label.lbm_height != 0)
5007a84e134Smrg	lw->label.lbm_y = (XtHeight(lw) - (lw->label.internal_height * 2 +
5017a84e134Smrg			   lw->label.lbm_height)) / 2;
5027a84e134Smrg    else
5037a84e134Smrg	lw->label.lbm_y = 0;
5047a84e134Smrg}
5057a84e134Smrg
5067a84e134Smrgstatic void
5077a84e134Smrgset_bitmap_info(LabelWidget lw)
5087a84e134Smrg{
5097a84e134Smrg    Window root;
5107a84e134Smrg    int x, y;
5117a84e134Smrg    unsigned int bw, depth;
5127a84e134Smrg
5137a84e134Smrg    if (!(lw->label.left_bitmap
5147a84e134Smrg	&& XGetGeometry(XtDisplay(lw), lw->label.left_bitmap, &root, &x, &y,
5157a84e134Smrg			&lw->label.lbm_width, &lw->label.lbm_height,
5167a84e134Smrg			&bw, &depth)))
5177a84e134Smrg	lw->label.lbm_width = lw->label.lbm_height = 0;
5187a84e134Smrg
5197a84e134Smrg    compute_bitmap_offsets(lw);
5207a84e134Smrg}
5217a84e134Smrg
5227a84e134Smrg/*ARGSUSED*/
5237a84e134Smrgstatic void
5247a84e134SmrgXawLabelInitialize(Widget request, Widget cnew,
5257a84e134Smrg		   ArgList args, Cardinal *num_args)
5267a84e134Smrg{
5277a84e134Smrg    LabelWidget lw = (LabelWidget)cnew;
5287a84e134Smrg
5297a84e134Smrg    if (!lw->label.font) XtError("Aborting: no font found\n");
530421c997bSmrg    if (lw->simple.international && !lw->label.fontset)
5317a84e134Smrg	XtError("Aborting: no fontset found\n");
532421c997bSmrg
533421c997bSmrg    if (lw->label.label == NULL)
5347a84e134Smrg	lw->label.label = XtNewString(lw->core.name);
5357a84e134Smrg    else
5367a84e134Smrg	lw->label.label = XtNewString(lw->label.label);
5377a84e134Smrg
5387a84e134Smrg    GetNormalGC(lw);
5397a84e134Smrg    GetGrayGC(lw);
5407a84e134Smrg
5417a84e134Smrg    SetTextWidthAndHeight(lw);
5427a84e134Smrg
5437a84e134Smrg    if (XtHeight(lw) == 0)
5447a84e134Smrg	XtHeight(lw) = lw->label.label_height + 2 * lw->label.internal_height;
5457a84e134Smrg
5467a84e134Smrg    set_bitmap_info(lw);		/* need core.height */
5477a84e134Smrg
5487a84e134Smrg    if (XtWidth(lw) == 0)		/* need label.lbm_width */
5497a84e134Smrg	XtWidth(lw) = lw->label.label_width + 2 * lw->label.internal_width +
5507a84e134Smrg		      LEFT_OFFSET(lw);
5517a84e134Smrg
5527a84e134Smrg    lw->label.label_x = lw->label.label_y = 0;
5537a84e134Smrg    (*XtClass(cnew)->core_class.resize)((Widget)lw);
5547a84e134Smrg}
5557a84e134Smrg
5567a84e134Smrg/*ARGSUSED*/
5577a84e134Smrgstatic void
5587a84e134SmrgXawLabelRedisplay(Widget gw, XEvent *event, Region region)
5597a84e134Smrg{
5607a84e134Smrg    LabelWidget w = (LabelWidget)gw;
5617a84e134Smrg    GC gc;
5627a84e134Smrg
5637a84e134Smrg    if (*Superclass->core_class.expose != NULL)
5647a84e134Smrg	(*Superclass->core_class.expose)(gw, event, region);
5657a84e134Smrg
5667a84e134Smrg    gc = XtIsSensitive(gw) ? w->label.normal_GC : w->label.gray_GC;
5677a84e134Smrg#ifdef notdef
5687a84e134Smrg    if (region != NULL)
5697a84e134Smrg	XSetRegion(XtDisplay(gw), gc, region);
5707a84e134Smrg#endif /*notdef*/
5717a84e134Smrg
5727a84e134Smrg    if (w->label.pixmap == None) {
5737a84e134Smrg	int len = w->label.label_len;
5747a84e134Smrg	char *label = w->label.label;
5757a84e134Smrg	Position y = w->label.label_y + w->label.font->max_bounds.ascent;
5767a84e134Smrg	Position ksy = w->label.label_y;
5777a84e134Smrg
5787a84e134Smrg	/* display left bitmap */
5797a84e134Smrg	if (w->label.left_bitmap && w->label.lbm_width != 0)
5807a84e134Smrg	    XCopyPlane (XtDisplay(gw), w->label.left_bitmap, XtWindow(gw), gc,
5817a84e134Smrg			0, 0, w->label.lbm_width, w->label.lbm_height,
5827a84e134Smrg			w->label.internal_width,
5837a84e134Smrg			w->label.internal_height + w->label.lbm_y, 1L);
5847a84e134Smrg
5857a84e134Smrg	if (w->simple.international == True) {
5867a84e134Smrg	    XFontSetExtents *ext = XExtentsOfFontSet(w->label.fontset);
5877a84e134Smrg
5887a84e134Smrg	    ksy += XawAbs(ext->max_ink_extent.y);
5897a84e134Smrg
5907a84e134Smrg	    if (len == MULTI_LINE_LABEL) {
5917a84e134Smrg		char *nl;
5927a84e134Smrg
5937a84e134Smrg		while ((nl = index(label, '\n')) != NULL) {
5947a84e134Smrg		    XmbDrawString(XtDisplay(w), XtWindow(w), w->label.fontset,
5957a84e134Smrg				  gc, w->label.label_x, ksy, label,
5967a84e134Smrg				  (int)(nl - label));
5977a84e134Smrg		    ksy += ext->max_ink_extent.height;
5987a84e134Smrg		    label = nl + 1;
5997a84e134Smrg		}
6007a84e134Smrg		len = strlen(label);
6017a84e134Smrg	    }
6027a84e134Smrg	    if (len)
6037a84e134Smrg		XmbDrawString(XtDisplay(w), XtWindow(w), w->label.fontset, gc,
6047a84e134Smrg			      w->label.label_x, ksy, label, len);
6057a84e134Smrg	}
6067a84e134Smrg	else {
6077a84e134Smrg	    if (len == MULTI_LINE_LABEL) {
6087a84e134Smrg		char *nl;
6097a84e134Smrg
6107a84e134Smrg		while ((nl = index(label, '\n')) != NULL) {
6117a84e134Smrg		    if (w->label.encoding)
6127a84e134Smrg			XDrawString16(XtDisplay(gw), XtWindow(gw), gc,
6137a84e134Smrg				      w->label.label_x, y,
6147a84e134Smrg				      (TXT16*)label, (int)(nl - label) / 2);
6157a84e134Smrg		    else
6167a84e134Smrg			XDrawString(XtDisplay(gw), XtWindow(gw), gc,
6177a84e134Smrg				    w->label.label_x, y, label, (int)(nl - label));
618421c997bSmrg		    y += w->label.font->max_bounds.ascent +
6197a84e134Smrg			 w->label.font->max_bounds.descent;
6207a84e134Smrg		    label = nl + 1;
6217a84e134Smrg		}
6227a84e134Smrg		len = strlen(label);
6237a84e134Smrg	    }
6247a84e134Smrg	    if (len) {
6257a84e134Smrg		if (w->label.encoding)
6267a84e134Smrg		    XDrawString16(XtDisplay(gw), XtWindow(gw), gc,
6277a84e134Smrg				  w->label.label_x, y, (TXT16*)label, len / 2);
6287a84e134Smrg		else
6297a84e134Smrg		    XDrawString(XtDisplay(gw), XtWindow(gw), gc,
6307a84e134Smrg				w->label.label_x, y, label, len);
6317a84e134Smrg	    }
6327a84e134Smrg	}
6337a84e134Smrg    }
6347a84e134Smrg    else if (w->label.label_len == 1)
6357a84e134Smrg	XCopyPlane(XtDisplay(gw), w->label.pixmap, XtWindow(gw), gc,
6367a84e134Smrg		   0, 0, w->label.label_width, w->label.label_height,
6377a84e134Smrg		   w->label.label_x, w->label.label_y, 1L);
6387a84e134Smrg    else
6397a84e134Smrg	XCopyArea(XtDisplay(gw), w->label.pixmap, XtWindow(gw), gc,
6407a84e134Smrg		  0, 0, w->label.label_width, w->label.label_height,
6417a84e134Smrg		  w->label.label_x, w->label.label_y);
6427a84e134Smrg
6437a84e134Smrg#ifdef notdef
6447a84e134Smrg    if (region != NULL)
6457a84e134Smrg	XSetClipMask(XtDisplay(gw), gc, (Pixmap)None);
6467a84e134Smrg#endif /* notdef */
6477a84e134Smrg}
6487a84e134Smrg
6497a84e134Smrgstatic void
6507a84e134Smrg_Reposition(LabelWidget lw, unsigned int width, unsigned int height,
6517a84e134Smrg	    Position *dx, Position *dy)
6527a84e134Smrg{
6537a84e134Smrg    Position newPos;
6547a84e134Smrg    Position leftedge = lw->label.internal_width + LEFT_OFFSET(lw);
6557a84e134Smrg
6567a84e134Smrg    switch (lw->label.justify) {
6577a84e134Smrg	case XtJustifyLeft:
6587a84e134Smrg	    newPos = leftedge;
6597a84e134Smrg	    break;
6607a84e134Smrg	case XtJustifyRight:
6617a84e134Smrg	    newPos = width - (lw->label.label_width + lw->label.internal_width);
6627a84e134Smrg	    break;
6637a84e134Smrg	case XtJustifyCenter:
6647a84e134Smrg        /*FALLTRHOUGH*/
6657a84e134Smrg	default:
6667a84e134Smrg	    newPos = (int)(width - lw->label.label_width) >> 1;
6677a84e134Smrg	    break;
6687a84e134Smrg    }
6697a84e134Smrg    if (newPos < (Position)leftedge)
6707a84e134Smrg	newPos = leftedge;
6717a84e134Smrg    *dx = newPos - lw->label.label_x;
6727a84e134Smrg    lw->label.label_x = newPos;
6737a84e134Smrg
6747a84e134Smrg    newPos = (height - lw->label.label_height) >> 1;
6757a84e134Smrg    *dy = newPos - lw->label.label_y;
6767a84e134Smrg    lw->label.label_y = newPos;
6777a84e134Smrg}
6787a84e134Smrg
6797a84e134Smrgstatic void
6807a84e134SmrgXawLabelResize(Widget w)
6817a84e134Smrg{
6827a84e134Smrg    LabelWidget lw = (LabelWidget)w;
6837a84e134Smrg    Position dx, dy;
6847a84e134Smrg
6857a84e134Smrg    _Reposition(lw, XtWidth(w), XtHeight(w), &dx, &dy);
6867a84e134Smrg    compute_bitmap_offsets(lw);
6877a84e134Smrg}
6887a84e134Smrg
6897a84e134Smrg#define PIXMAP 0
6907a84e134Smrg#define WIDTH 1
6917a84e134Smrg#define HEIGHT 2
6927a84e134Smrg#define NUM_CHECKS 3
6937a84e134Smrgstatic Boolean
6947a84e134SmrgXawLabelSetValues(Widget current, Widget request, Widget cnew,
6957a84e134Smrg		  ArgList args, Cardinal *num_args)
6967a84e134Smrg{
6977a84e134Smrg    LabelWidget curlw = (LabelWidget)current;
6987a84e134Smrg    LabelWidget reqlw = (LabelWidget)request;
6997a84e134Smrg    LabelWidget newlw = (LabelWidget)cnew;
7007a84e134Smrg    unsigned int i;
7017a84e134Smrg    Boolean was_resized = False, redisplay = False, checks[NUM_CHECKS];
7027a84e134Smrg
7037a84e134Smrg    for (i = 0; i < NUM_CHECKS; i++)
7047a84e134Smrg	checks[i] = False;
7057a84e134Smrg
7067a84e134Smrg    for (i = 0; i < *num_args; i++) {
7077a84e134Smrg	if (streq(XtNbitmap, args[i].name))
7087a84e134Smrg	    checks[PIXMAP] = True;
7097a84e134Smrg	else if (streq(XtNwidth, args[i].name))
7107a84e134Smrg	    checks[WIDTH] = True;
7117a84e134Smrg	else if (streq(XtNheight, args[i].name))
7127a84e134Smrg	    checks[HEIGHT] = True;
7137a84e134Smrg    }
7147a84e134Smrg
7157a84e134Smrg    if (newlw->label.label == NULL)
7167a84e134Smrg	newlw->label.label = newlw->core.name;
7177a84e134Smrg
7187a84e134Smrg    /*
7197a84e134Smrg     * resize on bitmap change
7207a84e134Smrg     */
7217a84e134Smrg    if (curlw->label.left_bitmap != newlw->label.left_bitmap)
7227a84e134Smrg	was_resized = True;
7237a84e134Smrg
7247a84e134Smrg    if (curlw->label.encoding != newlw->label.encoding)
7257a84e134Smrg	was_resized = True;
7267a84e134Smrg
727421c997bSmrg    if (curlw->simple.international
7287a84e134Smrg	&& curlw->label.fontset != newlw->label.fontset)
7297a84e134Smrg	was_resized = True;
7307a84e134Smrg
7317a84e134Smrg    if (curlw->label.label != newlw->label.label) {
7327a84e134Smrg	if (curlw->label.label != curlw->core.name)
7337a84e134Smrg	    XtFree((char *)curlw->label.label);
7347a84e134Smrg
7357a84e134Smrg	if (newlw->label.label != newlw->core.name)
7367a84e134Smrg	    newlw->label.label = XtNewString(newlw->label.label);
7377a84e134Smrg
7387a84e134Smrg	was_resized = True;
7397a84e134Smrg    }
7407a84e134Smrg
7417a84e134Smrg    if (was_resized || (curlw->label.font != newlw->label.font) ||
7427a84e134Smrg        curlw->label.justify != newlw->label.justify || checks[PIXMAP]) {
7437a84e134Smrg	SetTextWidthAndHeight(newlw);
7447a84e134Smrg	was_resized = True;
7457a84e134Smrg    }
7467a84e134Smrg
7477a84e134Smrg    /* recalculate the window size if something has changed */
7487a84e134Smrg    if (newlw->label.resize && was_resized) {
7497a84e134Smrg	if (XtHeight(curlw) == XtHeight(reqlw) && !checks[HEIGHT])
7507a84e134Smrg	    XtHeight(newlw) = newlw->label.label_height +
7517a84e134Smrg			      (newlw->label.internal_height << 1);
7527a84e134Smrg
7537a84e134Smrg	set_bitmap_info(newlw);
7547a84e134Smrg
7557a84e134Smrg	if (XtWidth(curlw) == XtWidth(reqlw) && !checks[WIDTH])
7567a84e134Smrg	    XtWidth(newlw) = newlw->label.label_width + LEFT_OFFSET(newlw) +
7577a84e134Smrg			     (newlw->label.internal_width << 1);
7587a84e134Smrg    }
7597a84e134Smrg
7607a84e134Smrg    if (curlw->label.foreground		!= newlw->label.foreground
7617a84e134Smrg	|| curlw->core.background_pixel != newlw->core.background_pixel
7627a84e134Smrg	|| curlw->label.font->fid	!= newlw->label.font->fid) {
7637a84e134Smrg	/* The Fontset is not in the GC - don't make a new GC if FS changes! */
7647a84e134Smrg	XtReleaseGC(cnew, curlw->label.normal_GC);
7657a84e134Smrg	XtReleaseGC(cnew, curlw->label.gray_GC);
7667a84e134Smrg	XmuReleaseStippledPixmap(XtScreen(current), curlw->label.stipple);
7677a84e134Smrg	GetNormalGC(newlw);
7687a84e134Smrg	GetGrayGC(newlw);
7697a84e134Smrg	redisplay = True;
7707a84e134Smrg    }
7717a84e134Smrg
7727a84e134Smrg    if (curlw->label.label_x != newlw->label.label_x ||
7737a84e134Smrg        curlw->label.label_y != newlw->label.label_y)
7747a84e134Smrg	redisplay = True;
7757a84e134Smrg
7767a84e134Smrg    if (curlw->label.internal_width != newlw->label.internal_width
7777a84e134Smrg	|| curlw->label.internal_height != newlw->label.internal_height
7787a84e134Smrg	|| was_resized) {
7797a84e134Smrg	/* Resize() will be called if geometry changes succeed */
7807a84e134Smrg	Position dx, dy;
7817a84e134Smrg
7827a84e134Smrg	_Reposition(newlw, XtWidth(curlw), XtHeight(curlw), &dx, &dy);
7837a84e134Smrg    }
7847a84e134Smrg
7857a84e134Smrg      return (was_resized || redisplay ||
7867a84e134Smrg	      XtIsSensitive(current) != XtIsSensitive(cnew));
7877a84e134Smrg}
7887a84e134Smrg
7897a84e134Smrgstatic void
7907a84e134SmrgXawLabelDestroy(Widget w)
7917a84e134Smrg{
7927a84e134Smrg    LabelWidget lw = (LabelWidget)w;
7937a84e134Smrg
7947a84e134Smrg    if (lw->label.label != lw->core.name)
7957a84e134Smrg	XtFree(lw->label.label);
7967a84e134Smrg    XtReleaseGC(w, lw->label.normal_GC);
7977a84e134Smrg    XtReleaseGC(w, lw->label.gray_GC);
7987a84e134Smrg    XmuReleaseStippledPixmap(XtScreen(w), lw->label.stipple);
7997a84e134Smrg}
8007a84e134Smrg
8017a84e134Smrgstatic XtGeometryResult
8027a84e134SmrgXawLabelQueryGeometry(Widget w, XtWidgetGeometry *intended,
8037a84e134Smrg		      XtWidgetGeometry *preferred)
8047a84e134Smrg{
8057a84e134Smrg    LabelWidget lw = (LabelWidget)w;
8067a84e134Smrg
8077a84e134Smrg    preferred->request_mode = CWWidth | CWHeight;
8087a84e134Smrg    preferred->width = lw->label.label_width +
8097a84e134Smrg		       (lw->label.internal_width << 1) + LEFT_OFFSET(lw);
8107a84e134Smrg    preferred->height = lw->label.label_height +
8117a84e134Smrg			(lw->label.internal_height << 1);
8127a84e134Smrg
8137a84e134Smrg    if (((intended->request_mode & (CWWidth | CWHeight)) == (CWWidth | CWHeight))
8147a84e134Smrg	&& intended->width == preferred->width
8157a84e134Smrg	&& intended->height == preferred->height)
8167a84e134Smrg	return (XtGeometryYes);
8177a84e134Smrg      else if (preferred->width == XtWidth(w) && preferred->height == XtHeight(w))
8187a84e134Smrg	return (XtGeometryNo);
8197a84e134Smrg
8207a84e134Smrg    return (XtGeometryAlmost);
8217a84e134Smrg}
822