ULabel.c revision 376c9fa8
19027f4a0Smrg/***********************************************************
29027f4a0Smrg
39027f4a0SmrgCopyright (c) 1987, 1988, 1994  X Consortium
49027f4a0Smrg
59027f4a0SmrgPermission is hereby granted, free of charge, to any person obtaining a copy
69027f4a0Smrgof this software and associated documentation files (the "Software"), to deal
79027f4a0Smrgin the Software without restriction, including without limitation the rights
89027f4a0Smrgto use, copy, modify, merge, publish, distribute, sublicense, and/or sell
99027f4a0Smrgcopies of the Software, and to permit persons to whom the Software is
109027f4a0Smrgfurnished to do so, subject to the following conditions:
119027f4a0Smrg
129027f4a0SmrgThe above copyright notice and this permission notice shall be included in
139027f4a0Smrgall copies or substantial portions of the Software.
149027f4a0Smrg
159027f4a0SmrgTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
169027f4a0SmrgIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
179027f4a0SmrgFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
189027f4a0SmrgX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
199027f4a0SmrgAN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
209027f4a0SmrgCONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
219027f4a0Smrg
229027f4a0SmrgExcept as contained in this notice, the name of the X Consortium shall not be
239027f4a0Smrgused in advertising or otherwise to promote the sale, use or other dealings
249027f4a0Smrgin this Software without prior written authorization from the X Consortium.
259027f4a0Smrg
269027f4a0Smrg
279027f4a0SmrgCopyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
289027f4a0Smrg
299027f4a0Smrg                        All Rights Reserved
309027f4a0Smrg
31fe2ac8d7SmrgPermission to use, copy, modify, and distribute this software and its
32fe2ac8d7Smrgdocumentation for any purpose and without fee is hereby granted,
339027f4a0Smrgprovided that the above copyright notice appear in all copies and that
34fe2ac8d7Smrgboth that copyright notice and this permission notice appear in
359027f4a0Smrgsupporting documentation, and that the name of Digital not be
369027f4a0Smrgused in advertising or publicity pertaining to distribution of the
37fe2ac8d7Smrgsoftware without specific, written prior permission.
389027f4a0Smrg
399027f4a0SmrgDIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
409027f4a0SmrgALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
419027f4a0SmrgDIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
429027f4a0SmrgANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
439027f4a0SmrgWHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
449027f4a0SmrgARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
459027f4a0SmrgSOFTWARE.
469027f4a0Smrg
479027f4a0Smrg******************************************************************/
489027f4a0Smrg
499027f4a0Smrg/*
509027f4a0Smrg * ULabel.c - UCSLabel widget
519027f4a0Smrg *
529027f4a0Smrg */
539027f4a0Smrg
549027f4a0Smrg#include <X11/IntrinsicP.h>
559027f4a0Smrg#include <X11/StringDefs.h>
569027f4a0Smrg#include <X11/Xos.h>
579027f4a0Smrg#include <X11/Xaw/XawInit.h>
589027f4a0Smrg#include "ULabelP.h"
599027f4a0Smrg#include <X11/Xmu/Converters.h>
609027f4a0Smrg#include <X11/Xmu/Drawing.h>
619027f4a0Smrg#include <stdio.h>
629027f4a0Smrg#include <ctype.h>
639027f4a0Smrg/* needed for abs() */
649027f4a0Smrg#include <stdlib.h>
659027f4a0Smrg
669027f4a0Smrg#define streq(a,b) (strcmp( (a), (b) ) == 0)
679027f4a0Smrg
689027f4a0Smrg#define MULTI_LINE_LABEL 32767
699027f4a0Smrg
709027f4a0Smrg
719027f4a0Smrg/****************************************************************
729027f4a0Smrg *
739027f4a0Smrg * Full class record constant
749027f4a0Smrg *
759027f4a0Smrg ****************************************************************/
769027f4a0Smrg
779027f4a0Smrg/* Private Data */
789027f4a0Smrg
799027f4a0Smrg#define offset(field) XtOffsetOf(UCSLabelRec, field)
809027f4a0Smrgstatic XtResource resources[] = {
819027f4a0Smrg    {XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel),
829027f4a0Smrg	offset(label.foreground), XtRString, XtDefaultForeground},
839027f4a0Smrg    {XtNfont,  XtCFont, XtRFontStruct, sizeof(XFontStruct *),
849027f4a0Smrg	offset(label.font),XtRString, XtDefaultFont},
859027f4a0Smrg    {XtNfontSet,  XtCFontSet, XtRFontSet, sizeof(XFontSet ),
869027f4a0Smrg        offset(label.fontset),XtRString, XtDefaultFontSet},
879027f4a0Smrg    {XtNlabel,  XtCLabel, XtRString, sizeof(String),
889027f4a0Smrg	offset(label.label), XtRString, NULL},
899027f4a0Smrg    {XtNencoding, XtCEncoding, XtRUnsignedChar, sizeof(unsigned char),
909027f4a0Smrg	offset(label.encoding), XtRImmediate, (XtPointer)XawTextEncoding8bit},
919027f4a0Smrg    {XtNjustify, XtCJustify, XtRJustify, sizeof(XtJustify),
929027f4a0Smrg	offset(label.justify), XtRImmediate, (XtPointer)XtJustifyCenter},
939027f4a0Smrg    {XtNinternalWidth, XtCWidth, XtRDimension,  sizeof(Dimension),
949027f4a0Smrg	offset(label.internal_width), XtRImmediate, (XtPointer)4},
959027f4a0Smrg    {XtNinternalHeight, XtCHeight, XtRDimension, sizeof(Dimension),
969027f4a0Smrg	offset(label.internal_height), XtRImmediate, (XtPointer)2},
979027f4a0Smrg    {XtNleftBitmap, XtCLeftBitmap, XtRBitmap, sizeof(Pixmap),
989027f4a0Smrg       offset(label.left_bitmap), XtRImmediate, (XtPointer) None},
999027f4a0Smrg    {XtNbitmap, XtCPixmap, XtRBitmap, sizeof(Pixmap),
1009027f4a0Smrg	offset(label.pixmap), XtRImmediate, (XtPointer)None},
1019027f4a0Smrg    {XtNresize, XtCResize, XtRBoolean, sizeof(Boolean),
1029027f4a0Smrg	offset(label.resize), XtRImmediate, (XtPointer)True},
1039027f4a0Smrg};
1049027f4a0Smrg#undef offset
1059027f4a0Smrg
1063a72f200Smrgstatic void Initialize(Widget request, Widget new,
1073a72f200Smrg		       ArgList args, Cardinal *num_args);
1083a72f200Smrgstatic void Resize(Widget w);
1093a72f200Smrgstatic void Redisplay(Widget gw, XEvent *event, Region region);
1103a72f200Smrgstatic Boolean SetValues(Widget current, Widget request, Widget new,
1113a72f200Smrg			 ArgList args, Cardinal *num_args);
1123a72f200Smrgstatic void ClassInitialize(void);
1133a72f200Smrgstatic void Destroy(Widget w);
1143a72f200Smrgstatic XtGeometryResult QueryGeometry(Widget w, XtWidgetGeometry *intended,
1153a72f200Smrg				      XtWidgetGeometry *preferred);
1169027f4a0Smrg
1179027f4a0SmrgUCSLabelClassRec ucsLabelClassRec = {
1189027f4a0Smrg  {
119fe2ac8d7Smrg/* core_class fields */
1209027f4a0Smrg    /* superclass	  	*/	(WidgetClass) &simpleClassRec,
1219027f4a0Smrg    /* class_name	  	*/	"UCSLabel",
1229027f4a0Smrg    /* widget_size	  	*/	sizeof(UCSLabelRec),
1239027f4a0Smrg    /* class_initialize   	*/	ClassInitialize,
1249027f4a0Smrg    /* class_part_initialize	*/	NULL,
1259027f4a0Smrg    /* class_inited       	*/	FALSE,
1269027f4a0Smrg    /* initialize	  	*/	Initialize,
1279027f4a0Smrg    /* initialize_hook		*/	NULL,
1289027f4a0Smrg    /* realize		  	*/	XtInheritRealize,
1299027f4a0Smrg    /* actions		  	*/	NULL,
1309027f4a0Smrg    /* num_actions	  	*/	0,
1319027f4a0Smrg    /* resources	  	*/	resources,
1329027f4a0Smrg    /* num_resources	  	*/	XtNumber(resources),
1339027f4a0Smrg    /* xrm_class	  	*/	NULLQUARK,
1349027f4a0Smrg    /* compress_motion	  	*/	TRUE,
1359027f4a0Smrg    /* compress_exposure  	*/	TRUE,
1369027f4a0Smrg    /* compress_enterleave	*/	TRUE,
1379027f4a0Smrg    /* visible_interest	  	*/	FALSE,
1389027f4a0Smrg    /* destroy		  	*/	Destroy,
1399027f4a0Smrg    /* resize		  	*/	Resize,
1409027f4a0Smrg    /* expose		  	*/	Redisplay,
1419027f4a0Smrg    /* set_values	  	*/	SetValues,
1429027f4a0Smrg    /* set_values_hook		*/	NULL,
1439027f4a0Smrg    /* set_values_almost	*/	XtInheritSetValuesAlmost,
1449027f4a0Smrg    /* get_values_hook		*/	NULL,
1459027f4a0Smrg    /* accept_focus	 	*/	NULL,
1469027f4a0Smrg    /* version			*/	XtVersion,
1479027f4a0Smrg    /* callback_private   	*/	NULL,
1489027f4a0Smrg    /* tm_table		   	*/	NULL,
1499027f4a0Smrg    /* query_geometry		*/	QueryGeometry,
1509027f4a0Smrg    /* display_accelerator	*/	XtInheritDisplayAccelerator,
1519027f4a0Smrg    /* extension		*/	NULL
1529027f4a0Smrg  },
1539027f4a0Smrg/* Simple class fields initialization */
1549027f4a0Smrg  {
1559027f4a0Smrg    /* change_sensitive		*/	XtInheritChangeSensitive
1569027f4a0Smrg  },
1579027f4a0Smrg/* UCSLabel class fields initialization */
1589027f4a0Smrg  {
1599027f4a0Smrg    /* ignore 			*/	0
1609027f4a0Smrg  }
1619027f4a0Smrg};
1629027f4a0SmrgWidgetClass ucsLabelWidgetClass = (WidgetClass)&ucsLabelClassRec;
1639027f4a0Smrg/****************************************************************
1649027f4a0Smrg *
1659027f4a0Smrg * Private Procedures
1669027f4a0Smrg *
1679027f4a0Smrg ****************************************************************/
1689027f4a0Smrg
1693a72f200Smrgstatic void ClassInitialize(void)
1709027f4a0Smrg{
1719027f4a0Smrg    XawInitializeWidgetSet();
172fe2ac8d7Smrg    XtAddConverter( XtRString, XtRJustify, XmuCvtStringToJustify,
1739027f4a0Smrg		    (XtConvertArgList)NULL, 0 );
1749027f4a0Smrg}
1759027f4a0Smrg
1769027f4a0Smrgstatic XChar2b *buf2b;
1779027f4a0Smrgstatic int buf2blen = 0;
1789027f4a0Smrg
1793a72f200Smrgstatic void _XawLabelDrawUCS(Display *dpy, Drawable d, GC gc,
1803a72f200Smrg			     int x, int y, char *str, int n)
1819027f4a0Smrg{
1829027f4a0Smrg    char *ep;
1839027f4a0Smrg    unsigned short codepoint;
1849027f4a0Smrg    XChar2b *ptr;
1859027f4a0Smrg
1869027f4a0Smrg    /*
1879027f4a0Smrg     * Convert to UCS2 string on the fly.
1889027f4a0Smrg     */
1899027f4a0Smrg
1909027f4a0Smrg    if (n > buf2blen) {
1919027f4a0Smrg	buf2b = (XChar2b *)XtRealloc((char *)buf2b, n * sizeof(XChar2b));
1929027f4a0Smrg	buf2blen = n;
1939027f4a0Smrg    }
1949027f4a0Smrg    ep = str + n;
1959027f4a0Smrg    for (ptr = buf2b; str < ep; ptr++) {
1969027f4a0Smrg        if((str[0]&0x80)==0) {
1979027f4a0Smrg            codepoint=str[0];
1989027f4a0Smrg            str++;
1999027f4a0Smrg        } else if((str[0]&0x20)==0) {
2009027f4a0Smrg            codepoint=(str[0]&0x1F)<<6 | (str[1]&0x3F);
2019027f4a0Smrg            str+=2;
2029027f4a0Smrg        } else if((str[0]&0x10)==0) {
2039027f4a0Smrg            codepoint=(str[0]&0x0F)<<12 | (str[1]&0x3F)<<6 | (str[2]&0x3F);
2049027f4a0Smrg            str+=3;
2059027f4a0Smrg        } else {                    /* wrong UTF-8 */
2069027f4a0Smrg            codepoint=(unsigned)'?';
2079027f4a0Smrg            str++;
2089027f4a0Smrg        }
209376c9fa8Smrg	ptr->byte1 = (codepoint >> 8) & 0xff;
2109027f4a0Smrg	ptr->byte2 = codepoint & 0xff;
2119027f4a0Smrg    }
2129027f4a0Smrg    XDrawString16(dpy, d, gc, x, y, buf2b, ptr - buf2b);
2139027f4a0Smrg}
2149027f4a0Smrg
2159027f4a0Smrgstatic int _XawLabelWidthUCS(
2169027f4a0Smrg    XFontStruct *fs,
2179027f4a0Smrg    char *str,
2189027f4a0Smrg    int	n
2199027f4a0Smrg)
2209027f4a0Smrg{
2219027f4a0Smrg    char *ep;
2229027f4a0Smrg    unsigned short codepoint;
2239027f4a0Smrg    XChar2b *ptr;
2249027f4a0Smrg
2259027f4a0Smrg    /*
2269027f4a0Smrg     * Convert to UCS2 string on the fly.
2279027f4a0Smrg     */
2289027f4a0Smrg
2299027f4a0Smrg    if (n > buf2blen) {
2309027f4a0Smrg	buf2b = (XChar2b *)XtRealloc((char *)buf2b, n * sizeof(XChar2b));
2319027f4a0Smrg	buf2blen = n;
2329027f4a0Smrg    }
2339027f4a0Smrg    ep = str + n;
2349027f4a0Smrg    for (ptr = buf2b; str < ep; ptr++) {
2359027f4a0Smrg        if((str[0]&0x80)==0) {
2369027f4a0Smrg            codepoint=str[0];
2379027f4a0Smrg            str++;
2389027f4a0Smrg        } else if((str[0]&0x20)==0) {
2399027f4a0Smrg            codepoint=(str[0]&0x1F)<<6 | (str[1]&0x3F);
2409027f4a0Smrg            str+=2;
2419027f4a0Smrg        } else if((str[0]&0x10)==0) {
2429027f4a0Smrg            codepoint=(str[0]&0x0F)<<12 | (str[1]&0x3F)<<6 | (str[2]&0x3F);
2439027f4a0Smrg            str+=3;
2449027f4a0Smrg        } else {                    /* wrong UTF-8 */
2459027f4a0Smrg            codepoint=(unsigned)'?';
2469027f4a0Smrg            str++;
2479027f4a0Smrg        }
248376c9fa8Smrg	ptr->byte1 = (codepoint >> 8) & 0xff;
2499027f4a0Smrg	ptr->byte2 = codepoint & 0xff;
2509027f4a0Smrg    }
2519027f4a0Smrg    return XTextWidth16(fs, buf2b, ptr - buf2b);
2529027f4a0Smrg}
2539027f4a0Smrg
2549027f4a0Smrg#define XTextWidthUCS _XawLabelWidthUCS
2559027f4a0Smrg#define XDrawStringUCS _XawLabelDrawUCS
2569027f4a0Smrg
2579027f4a0Smrg/*
2589027f4a0Smrg * Calculate width and height of displayed text in pixels
2599027f4a0Smrg */
2609027f4a0Smrg
2613a72f200Smrgstatic void SetTextWidthAndHeight(UCSLabelWidget lw)
2629027f4a0Smrg{
2639027f4a0Smrg    XFontStruct	*fs = lw->label.font;
2649027f4a0Smrg
2659027f4a0Smrg    char *nl;
2669027f4a0Smrg
2679027f4a0Smrg    if (lw->label.pixmap != None) {
2689027f4a0Smrg	Window root;
2699027f4a0Smrg	int x, y;
2709027f4a0Smrg	unsigned int width, height, bw, depth;
2719027f4a0Smrg	if (XGetGeometry(XtDisplay(lw), lw->label.pixmap, &root, &x, &y,
2729027f4a0Smrg			 &width, &height, &bw, &depth)) {
2739027f4a0Smrg	    lw->label.label_height = height;
2749027f4a0Smrg	    lw->label.label_width = width;
2759027f4a0Smrg	    lw->label.label_len = depth;
2769027f4a0Smrg	    return;
2779027f4a0Smrg	}
2789027f4a0Smrg    }
2799027f4a0Smrg    if ( lw->simple.international == True ) {
2809027f4a0Smrg
2819027f4a0Smrg      XFontSet	fset = lw->label.fontset;
2829027f4a0Smrg      XFontSetExtents *ext = XExtentsOfFontSet(fset);
2839027f4a0Smrg
2849027f4a0Smrg      lw->label.label_height = ext->max_ink_extent.height;
2859027f4a0Smrg      if (lw->label.label == NULL) {
2869027f4a0Smrg	  lw->label.label_len = 0;
2879027f4a0Smrg	  lw->label.label_width = 0;
2889027f4a0Smrg      }
2899027f4a0Smrg      else if ((nl = index(lw->label.label, '\n')) != NULL) {
2909027f4a0Smrg	  char *label;
2919027f4a0Smrg	  lw->label.label_len = MULTI_LINE_LABEL;
2929027f4a0Smrg	  lw->label.label_width = 0;
2939027f4a0Smrg	  for (label = lw->label.label; nl != NULL; nl = index(label, '\n')) {
2949027f4a0Smrg	      int width = XmbTextEscapement(fset, label, (int)(nl - label));
2959027f4a0Smrg
2969027f4a0Smrg	      if (width > (int)lw->label.label_width)
2979027f4a0Smrg		  lw->label.label_width = width;
2989027f4a0Smrg	      label = nl + 1;
2999027f4a0Smrg	      if (*label)
3009027f4a0Smrg		  lw->label.label_height +=
3019027f4a0Smrg		      ext->max_ink_extent.height;
3029027f4a0Smrg	  }
3039027f4a0Smrg	  if (*label) {
3049027f4a0Smrg	      int width = XmbTextEscapement(fset, label, strlen(label));
3059027f4a0Smrg
3069027f4a0Smrg	      if (width > (int) lw->label.label_width)
3079027f4a0Smrg		  lw->label.label_width = width;
3089027f4a0Smrg	  }
3099027f4a0Smrg      } else {
3109027f4a0Smrg	  lw->label.label_len = strlen(lw->label.label);
3119027f4a0Smrg	  lw->label.label_width =
3129027f4a0Smrg	      XmbTextEscapement(fset, lw->label.label, (int) lw->label.label_len);
3139027f4a0Smrg      }
3149027f4a0Smrg
3159027f4a0Smrg    } else {
3169027f4a0Smrg
3179027f4a0Smrg        lw->label.label_height = fs->max_bounds.ascent + fs->max_bounds.descent;
3189027f4a0Smrg        if (lw->label.label == NULL) {
3199027f4a0Smrg            lw->label.label_len = 0;
3209027f4a0Smrg            lw->label.label_width = 0;
3219027f4a0Smrg        }
3229027f4a0Smrg        else if ((nl = index(lw->label.label, '\n')) != NULL) {
3239027f4a0Smrg	    char *label;
3249027f4a0Smrg            lw->label.label_len = MULTI_LINE_LABEL;
3259027f4a0Smrg            lw->label.label_width = 0;
3269027f4a0Smrg            for (label = lw->label.label; nl != NULL; nl = index(label, '\n')) {
3279027f4a0Smrg	        int width;
3289027f4a0Smrg
3299027f4a0Smrg	        if (lw->label.encoding == XawTextEncodingChar2b)
330376c9fa8Smrg		    width = XTextWidth16(fs, (XChar2b *)label, (int)(nl - label)/2);
3319027f4a0Smrg                else if (lw->label.encoding == XawTextEncodingUCS)
3329027f4a0Smrg		    width = XTextWidthUCS(fs, label, nl - label);
3339027f4a0Smrg	        else
3349027f4a0Smrg		    width = XTextWidth(fs, label, (int)(nl - label));
3359027f4a0Smrg	        if (width > (int)lw->label.label_width)
3369027f4a0Smrg		    lw->label.label_width = width;
3379027f4a0Smrg	        label = nl + 1;
3389027f4a0Smrg	        if (*label)
3399027f4a0Smrg		    lw->label.label_height +=
3409027f4a0Smrg		        fs->max_bounds.ascent + fs->max_bounds.descent;
3419027f4a0Smrg	    }
3429027f4a0Smrg	    if (*label) {
3439027f4a0Smrg	        int width;
3449027f4a0Smrg
3459027f4a0Smrg	        if (lw->label.encoding == XawTextEncodingChar2b)
346376c9fa8Smrg		    width = XTextWidth16(fs, (XChar2b *)label, (int)strlen(label)/2);
3479027f4a0Smrg                else if (lw->label.encoding == XawTextEncodingUCS)
3489027f4a0Smrg		    width = XTextWidthUCS(fs, label, strlen(label));
3499027f4a0Smrg	        else
3509027f4a0Smrg		    width = XTextWidth(fs, label, strlen(label));
3519027f4a0Smrg	        if (width > (int) lw->label.label_width)
3529027f4a0Smrg		    lw->label.label_width = width;
3539027f4a0Smrg	    }
3549027f4a0Smrg        } else {
3559027f4a0Smrg	    lw->label.label_len = strlen(lw->label.label);
3569027f4a0Smrg	    if (lw->label.encoding == XawTextEncodingChar2b)
3579027f4a0Smrg	        lw->label.label_width =
358376c9fa8Smrg		    XTextWidth16(fs, (XChar2b *)lw->label.label,
3599027f4a0Smrg			         (int) lw->label.label_len/2);
3609027f4a0Smrg            else if (lw->label.encoding == XawTextEncodingUCS)
3619027f4a0Smrg		lw->label.label_width = XTextWidthUCS(fs, lw->label.label,
3629027f4a0Smrg                                                      lw->label.label_len);
3639027f4a0Smrg	    else
3649027f4a0Smrg	        lw->label.label_width =
3659027f4a0Smrg		    XTextWidth(fs, lw->label.label, (int) lw->label.label_len);
3669027f4a0Smrg        }
3679027f4a0Smrg
3689027f4a0Smrg    }
3699027f4a0Smrg}
3709027f4a0Smrg
3713a72f200Smrgstatic void GetnormalGC(UCSLabelWidget lw)
3729027f4a0Smrg{
3739027f4a0Smrg    XGCValues	values;
3749027f4a0Smrg
3759027f4a0Smrg    values.foreground	= lw->label.foreground;
3769027f4a0Smrg    values.background	= lw->core.background_pixel;
3779027f4a0Smrg    values.font		= lw->label.font->fid;
3789027f4a0Smrg    values.graphics_exposures = False;
3799027f4a0Smrg
3809027f4a0Smrg    if ( lw->simple.international == True )
3819027f4a0Smrg        /* Since Xmb/wcDrawString eats the font, I must use XtAllocateGC. */
3829027f4a0Smrg        lw->label.normal_GC = XtAllocateGC(
3839027f4a0Smrg                (Widget)lw, 0,
3849027f4a0Smrg	(unsigned) GCForeground | GCBackground | GCGraphicsExposures,
3859027f4a0Smrg	&values, GCFont, 0 );
3869027f4a0Smrg    else
3879027f4a0Smrg        lw->label.normal_GC = XtGetGC(
3889027f4a0Smrg	(Widget)lw,
3899027f4a0Smrg	(unsigned) GCForeground | GCBackground | GCFont | GCGraphicsExposures,
3909027f4a0Smrg	&values);
3919027f4a0Smrg}
3929027f4a0Smrg
3933a72f200Smrgstatic void GetgrayGC(UCSLabelWidget lw)
3949027f4a0Smrg{
3959027f4a0Smrg    XGCValues	values;
3969027f4a0Smrg
3979027f4a0Smrg    values.foreground = lw->label.foreground;
3989027f4a0Smrg    values.background = lw->core.background_pixel;
3999027f4a0Smrg    values.font	      = lw->label.font->fid;
4009027f4a0Smrg    values.fill_style = FillTiled;
4019027f4a0Smrg    values.tile       = XmuCreateStippledPixmap(XtScreen((Widget)lw),
402fe2ac8d7Smrg						lw->label.foreground,
4039027f4a0Smrg						lw->core.background_pixel,
4049027f4a0Smrg						lw->core.depth);
4059027f4a0Smrg    values.graphics_exposures = False;
4069027f4a0Smrg
4079027f4a0Smrg    lw->label.stipple = values.tile;
4089027f4a0Smrg    if ( lw->simple.international == True )
4099027f4a0Smrg        /* Since Xmb/wcDrawString eats the font, I must use XtAllocateGC. */
4109027f4a0Smrg        lw->label.gray_GC = XtAllocateGC((Widget)lw,  0,
4119027f4a0Smrg				(unsigned) GCForeground | GCBackground |
4129027f4a0Smrg					   GCTile | GCFillStyle |
4139027f4a0Smrg					   GCGraphicsExposures,
4149027f4a0Smrg				&values, GCFont, 0);
4159027f4a0Smrg    else
416fe2ac8d7Smrg        lw->label.gray_GC = XtGetGC((Widget)lw,
4179027f4a0Smrg				(unsigned) GCForeground | GCBackground |
4189027f4a0Smrg					   GCFont | GCTile | GCFillStyle |
4199027f4a0Smrg					   GCGraphicsExposures,
4209027f4a0Smrg				&values);
4219027f4a0Smrg}
4229027f4a0Smrg
4233a72f200Smrgstatic void compute_bitmap_offsets(UCSLabelWidget lw)
4249027f4a0Smrg{
4259027f4a0Smrg    /*
426fe2ac8d7Smrg     * bitmap will be eventually be displayed at
4279027f4a0Smrg     * (internal_width, internal_height + lbm_y)
4289027f4a0Smrg     */
4299027f4a0Smrg    if (lw->label.lbm_height != 0) {
4309027f4a0Smrg	lw->label.lbm_y = (lw->core.height -
431fe2ac8d7Smrg			  (lw->label.internal_height * 2 +
4329027f4a0Smrg			   lw->label.lbm_height)) / 2;
4339027f4a0Smrg    } else {
4349027f4a0Smrg	lw->label.lbm_y = 0;
4359027f4a0Smrg    }
4369027f4a0Smrg}
4379027f4a0Smrg
4389027f4a0Smrg
4393a72f200Smrgstatic void set_bitmap_info(UCSLabelWidget lw)
4409027f4a0Smrg{
4419027f4a0Smrg    Window root;
4429027f4a0Smrg    int x, y;
4439027f4a0Smrg    unsigned int bw, depth;
4449027f4a0Smrg
4459027f4a0Smrg    if (!(lw->label.left_bitmap &&
4469027f4a0Smrg	  XGetGeometry (XtDisplay(lw), lw->label.left_bitmap, &root, &x, &y,
4479027f4a0Smrg			&lw->label.lbm_width, &lw->label.lbm_height,
4489027f4a0Smrg			&bw, &depth))) {
4499027f4a0Smrg	lw->label.lbm_width = lw->label.lbm_height = 0;
4509027f4a0Smrg    }
4519027f4a0Smrg    compute_bitmap_offsets (lw);
4529027f4a0Smrg}
4539027f4a0Smrg
4549027f4a0Smrg
4559027f4a0Smrg
4569027f4a0Smrg/* ARGSUSED */
4573a72f200Smrgstatic void
4583a72f200SmrgInitialize(Widget request, Widget new, ArgList args, Cardinal *num_args)
4599027f4a0Smrg{
4609027f4a0Smrg    UCSLabelWidget lw = (UCSLabelWidget) new;
4619027f4a0Smrg
462fe2ac8d7Smrg    if (lw->label.label == NULL)
4639027f4a0Smrg        lw->label.label = XtNewString(lw->core.name);
4649027f4a0Smrg    else {
4659027f4a0Smrg        lw->label.label = XtNewString(lw->label.label);
4669027f4a0Smrg    }
4679027f4a0Smrg
4689027f4a0Smrg    GetnormalGC(lw);
4699027f4a0Smrg    GetgrayGC(lw);
4709027f4a0Smrg
4719027f4a0Smrg    SetTextWidthAndHeight(lw);
4729027f4a0Smrg
4739027f4a0Smrg    if (lw->core.height == 0)
4749027f4a0Smrg        lw->core.height = lw->label.label_height +
4759027f4a0Smrg			    2 * lw->label.internal_height;
4769027f4a0Smrg
4779027f4a0Smrg    set_bitmap_info (lw);		/* need core.height */
4789027f4a0Smrg
4799027f4a0Smrg    if (lw->core.width == 0)		/* need label.lbm_width */
4809027f4a0Smrg        lw->core.width = (lw->label.label_width +
4819027f4a0Smrg			    2 * lw->label.internal_width +
4829027f4a0Smrg			    LEFT_OFFSET(lw));
4839027f4a0Smrg
4849027f4a0Smrg    lw->label.label_x = lw->label.label_y = 0;
4859027f4a0Smrg    (*XtClass(new)->core_class.resize) ((Widget)lw);
4869027f4a0Smrg
4879027f4a0Smrg} /* Initialize */
4889027f4a0Smrg
4899027f4a0Smrg/*
4909027f4a0Smrg * Repaint the widget window
4919027f4a0Smrg */
4929027f4a0Smrg
4939027f4a0Smrg/* ARGSUSED */
4943a72f200Smrgstatic void Redisplay(Widget gw, XEvent *event, Region region)
4959027f4a0Smrg{
4969027f4a0Smrg    UCSLabelWidget w = (UCSLabelWidget) gw;
4979027f4a0Smrg    GC gc;
4989027f4a0Smrg
4999027f4a0Smrg    /*
5009027f4a0Smrg     * now we'll see if we need to draw the rest of the label
5019027f4a0Smrg     */
5029027f4a0Smrg    if (region != NULL) {
5039027f4a0Smrg	int x = w->label.label_x;
5049027f4a0Smrg	unsigned int width = w->label.label_width;
5059027f4a0Smrg	if (w->label.lbm_width) {
5069027f4a0Smrg	    if (w->label.label_x > (x = w->label.internal_width))
5079027f4a0Smrg		width += w->label.label_x - x;
5089027f4a0Smrg	}
5099027f4a0Smrg	if (XRectInRegion(region, x, w->label.label_y,
5109027f4a0Smrg			 width, w->label.label_height) == RectangleOut){
5119027f4a0Smrg	    return;
5129027f4a0Smrg	}
5139027f4a0Smrg    }
5149027f4a0Smrg
5159027f4a0Smrg    gc = XtIsSensitive(gw) ? w->label.normal_GC : w->label.gray_GC;
5169027f4a0Smrg#ifdef notdef
5179027f4a0Smrg    if (region != NULL)
5189027f4a0Smrg	XSetRegion(XtDisplay(gw), gc, region);
5199027f4a0Smrg#endif /*notdef*/
5209027f4a0Smrg
5219027f4a0Smrg    if (w->label.pixmap == None) {
5229027f4a0Smrg	int len = w->label.label_len;
5239027f4a0Smrg	char *label = w->label.label;
5249027f4a0Smrg	Position y = w->label.label_y + w->label.font->max_bounds.ascent;
5259027f4a0Smrg        Position ksy = w->label.label_y;
5269027f4a0Smrg
5279027f4a0Smrg	/* display left bitmap */
5289027f4a0Smrg	if (w->label.left_bitmap && w->label.lbm_width != 0) {
5299027f4a0Smrg	    XCopyPlane (XtDisplay(gw), w->label.left_bitmap, XtWindow(gw), gc,
5309027f4a0Smrg		       0, 0, w->label.lbm_width, w->label.lbm_height,
5319027f4a0Smrg		       (int) w->label.internal_width,
532fe2ac8d7Smrg		       (int) w->label.internal_height + w->label.lbm_y,
5339027f4a0Smrg		       (unsigned long) 1L);
5349027f4a0Smrg	}
5359027f4a0Smrg
5369027f4a0Smrg        if ( w->simple.international == True ) {
5379027f4a0Smrg
5389027f4a0Smrg	    XFontSetExtents *ext = XExtentsOfFontSet(w->label.fontset);
5399027f4a0Smrg
5409027f4a0Smrg	    ksy += abs(ext->max_ink_extent.y);
5419027f4a0Smrg
5429027f4a0Smrg            if (len == MULTI_LINE_LABEL) {
5439027f4a0Smrg	        char *nl;
5449027f4a0Smrg	        while ((nl = index(label, '\n')) != NULL) {
5459027f4a0Smrg	            XmbDrawString(XtDisplay(w), XtWindow(w), w->label.fontset, gc,
5469027f4a0Smrg	  		        w->label.label_x, ksy, label, (int)(nl - label));
5479027f4a0Smrg	            ksy += ext->max_ink_extent.height;
5489027f4a0Smrg	            label = nl + 1;
5499027f4a0Smrg	        }
5509027f4a0Smrg	        len = strlen(label);
5519027f4a0Smrg            }
5529027f4a0Smrg            if (len)
5539027f4a0Smrg	        XmbDrawString(XtDisplay(w), XtWindow(w), w->label.fontset, gc,
5549027f4a0Smrg			      w->label.label_x, ksy, label, len);
5559027f4a0Smrg
5569027f4a0Smrg        } else { /*international false, so use R5 routine */
5579027f4a0Smrg
5589027f4a0Smrg	    if (len == MULTI_LINE_LABEL) {
5599027f4a0Smrg	        char *nl;
5609027f4a0Smrg	        while ((nl = index(label, '\n')) != NULL) {
5619027f4a0Smrg		    if (w->label.encoding == XawTextEncodingChar2b)
5629027f4a0Smrg		        XDrawString16(XtDisplay(gw), XtWindow(gw), gc,
5639027f4a0Smrg				 		w->label.label_x, y,
564376c9fa8Smrg                                      (XChar2b *)label, (int)(nl - label)/2);
5659027f4a0Smrg                    else if (w->label.encoding == XawTextEncodingUCS)
5669027f4a0Smrg		        XDrawStringUCS(XtDisplay(gw), XtWindow(gw), gc,
5679027f4a0Smrg			       		w->label.label_x, y, label, (int)(nl - label));
5689027f4a0Smrg		    else
5699027f4a0Smrg		        XDrawString(XtDisplay(gw), XtWindow(gw), gc,
5709027f4a0Smrg			       		w->label.label_x, y, label, (int)(nl - label));
571fe2ac8d7Smrg		    y += w->label.font->max_bounds.ascent +
5729027f4a0Smrg		                        w->label.font->max_bounds.descent;
5739027f4a0Smrg		    label = nl + 1;
5749027f4a0Smrg	        }
5759027f4a0Smrg	        len = strlen(label);
5769027f4a0Smrg	    }
5779027f4a0Smrg	    if (len) {
5789027f4a0Smrg	        if (w->label.encoding == XawTextEncodingChar2b)
5799027f4a0Smrg		    XDrawString16(XtDisplay(gw), XtWindow(gw), gc,
580376c9fa8Smrg			     w->label.label_x, y, (XChar2b *)label, len/2);
5819027f4a0Smrg                else if (w->label.encoding == XawTextEncodingUCS)
5829027f4a0Smrg                    XDrawStringUCS(XtDisplay(gw), XtWindow(gw), gc,
5839027f4a0Smrg                             w->label.label_x, y, label, len);
5849027f4a0Smrg	        else
5859027f4a0Smrg		    XDrawString(XtDisplay(gw), XtWindow(gw), gc,
5869027f4a0Smrg			   w->label.label_x, y, label, len);
5879027f4a0Smrg	    }
5889027f4a0Smrg
5899027f4a0Smrg        } /*endif international*/
5909027f4a0Smrg
5919027f4a0Smrg    } else if (w->label.label_len == 1) { /* depth */
5929027f4a0Smrg	XCopyPlane(XtDisplay(gw), w->label.pixmap, XtWindow(gw), gc,
5939027f4a0Smrg				0, 0, w->label.label_width, w->label.label_height,
5949027f4a0Smrg				w->label.label_x, w->label.label_y, 1L);
5959027f4a0Smrg    } else {
5969027f4a0Smrg	XCopyArea(XtDisplay(gw), w->label.pixmap, XtWindow(gw), gc,
5979027f4a0Smrg				0, 0, w->label.label_width, w->label.label_height,
5989027f4a0Smrg				w->label.label_x, w->label.label_y);
5999027f4a0Smrg    }
6009027f4a0Smrg
6019027f4a0Smrg#ifdef notdef
6029027f4a0Smrg    if (region != NULL)
6039027f4a0Smrg	XSetClipMask(XtDisplay(gw), gc, (Pixmap)None);
6049027f4a0Smrg#endif /* notdef */
6059027f4a0Smrg}
6069027f4a0Smrg
6073a72f200Smrgstatic void _Reposition(UCSLabelWidget lw, Dimension width, Dimension height,
6083a72f200Smrg			Position *dx, Position *dy)
6099027f4a0Smrg{
6109027f4a0Smrg    Position newPos;
6119027f4a0Smrg    Position leftedge = lw->label.internal_width + LEFT_OFFSET(lw);
6129027f4a0Smrg
6139027f4a0Smrg    switch (lw->label.justify) {
6149027f4a0Smrg
6159027f4a0Smrg	case XtJustifyLeft   :
6169027f4a0Smrg	    newPos = leftedge;
6179027f4a0Smrg	    break;
6189027f4a0Smrg
6199027f4a0Smrg	case XtJustifyRight  :
6209027f4a0Smrg	    newPos = width -
6219027f4a0Smrg		(lw->label.label_width + lw->label.internal_width);
6229027f4a0Smrg	    break;
6239027f4a0Smrg
6249027f4a0Smrg	case XtJustifyCenter :
6259027f4a0Smrg	default:
6269027f4a0Smrg	    newPos = (int)(width - lw->label.label_width) / 2;
6279027f4a0Smrg	    break;
6289027f4a0Smrg    }
6299027f4a0Smrg    if (newPos < (Position)leftedge)
6309027f4a0Smrg	newPos = leftedge;
6319027f4a0Smrg    *dx = newPos - lw->label.label_x;
6329027f4a0Smrg    lw->label.label_x = newPos;
6339027f4a0Smrg    *dy = (newPos = (int)(height - lw->label.label_height) / 2)
6349027f4a0Smrg	  - lw->label.label_y;
6359027f4a0Smrg    lw->label.label_y = newPos;
6369027f4a0Smrg    return;
6379027f4a0Smrg}
6389027f4a0Smrg
6393a72f200Smrgstatic void Resize(Widget w)
6409027f4a0Smrg{
6419027f4a0Smrg    UCSLabelWidget lw = (UCSLabelWidget)w;
6429027f4a0Smrg    Position dx, dy;
6439027f4a0Smrg
6449027f4a0Smrg    _Reposition(lw, w->core.width, w->core.height, &dx, &dy);
6459027f4a0Smrg    compute_bitmap_offsets (lw);
6469027f4a0Smrg}
6479027f4a0Smrg
6489027f4a0Smrg/*
6499027f4a0Smrg * Set specified arguments into widget
6509027f4a0Smrg */
6519027f4a0Smrg
6529027f4a0Smrg#define PIXMAP 0
6539027f4a0Smrg#define WIDTH 1
6549027f4a0Smrg#define HEIGHT 2
6559027f4a0Smrg#define NUM_CHECKS 3
6569027f4a0Smrg
6573a72f200Smrgstatic Boolean
6583a72f200SmrgSetValues(Widget current, Widget request, Widget new,
6593a72f200Smrg	  ArgList args, Cardinal *num_args)
6609027f4a0Smrg{
6619027f4a0Smrg    UCSLabelWidget curlw = (UCSLabelWidget) current;
6629027f4a0Smrg    UCSLabelWidget reqlw = (UCSLabelWidget) request;
6639027f4a0Smrg    UCSLabelWidget newlw = (UCSLabelWidget) new;
6649027f4a0Smrg    int i;
6659027f4a0Smrg    Boolean was_resized = False, redisplay = False, checks[NUM_CHECKS];
6669027f4a0Smrg
6679027f4a0Smrg    for (i = 0; i < NUM_CHECKS; i++)
6689027f4a0Smrg	checks[i] = FALSE;
6699027f4a0Smrg
6709027f4a0Smrg    for (i = 0; i < *num_args; i++) {
6719027f4a0Smrg	if (streq(XtNbitmap, args[i].name))
6729027f4a0Smrg	    checks[PIXMAP] = TRUE;
6739027f4a0Smrg	if (streq(XtNwidth, args[i].name))
6749027f4a0Smrg	    checks[WIDTH] = TRUE;
6759027f4a0Smrg	if (streq(XtNheight, args[i].name))
6769027f4a0Smrg	    checks[HEIGHT] = TRUE;
6779027f4a0Smrg    }
6789027f4a0Smrg
6799027f4a0Smrg    if (newlw->label.label == NULL) {
6809027f4a0Smrg	newlw->label.label = newlw->core.name;
6819027f4a0Smrg    }
6829027f4a0Smrg
6839027f4a0Smrg    /*
6849027f4a0Smrg     * resize on bitmap change
6859027f4a0Smrg     */
6869027f4a0Smrg    if (curlw->label.left_bitmap != newlw->label.left_bitmap) {
6879027f4a0Smrg	was_resized = True;
6889027f4a0Smrg    }
6899027f4a0Smrg
6909027f4a0Smrg    if (curlw->label.encoding != newlw->label.encoding)
6919027f4a0Smrg	was_resized = True;
6929027f4a0Smrg
6939027f4a0Smrg    if ( (curlw->label.fontset != newlw->label.fontset) &&
6949027f4a0Smrg					 curlw->simple.international ){
6959027f4a0Smrg	was_resized = True;
6969027f4a0Smrg    }
6979027f4a0Smrg    if (curlw->label.label != newlw->label.label) {
6989027f4a0Smrg        if (curlw->label.label != curlw->core.name)
6999027f4a0Smrg	    XtFree( (char *)curlw->label.label );
7009027f4a0Smrg
7019027f4a0Smrg	if (newlw->label.label != newlw->core.name) {
7029027f4a0Smrg	    newlw->label.label = XtNewString( newlw->label.label );
7039027f4a0Smrg	}
7049027f4a0Smrg	was_resized = True;
7059027f4a0Smrg    }
7069027f4a0Smrg
7079027f4a0Smrg    if (was_resized || (curlw->label.font != newlw->label.font) ||
7089027f4a0Smrg	(curlw->label.justify != newlw->label.justify) || checks[PIXMAP]) {
7099027f4a0Smrg
7109027f4a0Smrg	SetTextWidthAndHeight(newlw);
7119027f4a0Smrg	was_resized = True;
7129027f4a0Smrg    }
7139027f4a0Smrg
7149027f4a0Smrg    /* recalculate the window size if something has changed. */
7159027f4a0Smrg    if (newlw->label.resize && was_resized) {
7169027f4a0Smrg	if ((curlw->core.height == reqlw->core.height) && !checks[HEIGHT])
7179027f4a0Smrg	    newlw->core.height = (newlw->label.label_height +
7189027f4a0Smrg				    2 * newlw->label.internal_height);
7199027f4a0Smrg
7209027f4a0Smrg	set_bitmap_info (newlw);
7219027f4a0Smrg
7229027f4a0Smrg	if ((curlw->core.width == reqlw->core.width) && !checks[WIDTH])
7239027f4a0Smrg	    newlw->core.width = (newlw->label.label_width +
7249027f4a0Smrg				    LEFT_OFFSET(newlw) +
7259027f4a0Smrg				    2 * newlw->label.internal_width);
7269027f4a0Smrg    }
7279027f4a0Smrg
7289027f4a0Smrg    if (curlw->label.foreground		!= newlw->label.foreground
7299027f4a0Smrg	|| curlw->core.background_pixel != newlw->core.background_pixel
7309027f4a0Smrg	|| curlw->label.font->fid	!= newlw->label.font->fid	  ) {
7319027f4a0Smrg
7329027f4a0Smrg        /* The Fontset is not in the GC - don't make a new GC if FS changes! */
7339027f4a0Smrg
7349027f4a0Smrg	XtReleaseGC(new, curlw->label.normal_GC);
7359027f4a0Smrg	XtReleaseGC(new, curlw->label.gray_GC);
7369027f4a0Smrg	XmuReleaseStippledPixmap( XtScreen(current), curlw->label.stipple );
7379027f4a0Smrg	GetnormalGC(newlw);
7389027f4a0Smrg	GetgrayGC(newlw);
7399027f4a0Smrg	redisplay = True;
7409027f4a0Smrg    }
7419027f4a0Smrg
7429027f4a0Smrg    if ((curlw->label.internal_width != newlw->label.internal_width)
7439027f4a0Smrg        || (curlw->label.internal_height != newlw->label.internal_height)
7449027f4a0Smrg	|| was_resized) {
7459027f4a0Smrg	/* Resize() will be called if geometry changes succeed */
7469027f4a0Smrg	Position dx, dy;
7479027f4a0Smrg	_Reposition(newlw, curlw->core.width, curlw->core.height, &dx, &dy);
7489027f4a0Smrg    }
7499027f4a0Smrg
7509027f4a0Smrg    return was_resized || redisplay ||
7519027f4a0Smrg	   XtIsSensitive(current) != XtIsSensitive(new);
7529027f4a0Smrg}
7539027f4a0Smrg
7543a72f200Smrgstatic void Destroy(Widget w)
7559027f4a0Smrg{
7569027f4a0Smrg    UCSLabelWidget lw = (UCSLabelWidget)w;
7579027f4a0Smrg
7589027f4a0Smrg    if ( lw->label.label != lw->core.name )
7599027f4a0Smrg	XtFree( lw->label.label );
7609027f4a0Smrg    XtReleaseGC( w, lw->label.normal_GC );
7619027f4a0Smrg    XtReleaseGC( w, lw->label.gray_GC);
7629027f4a0Smrg    XmuReleaseStippledPixmap( XtScreen(w), lw->label.stipple );
7639027f4a0Smrg}
7649027f4a0Smrg
7659027f4a0Smrg
7663a72f200Smrgstatic XtGeometryResult
7673a72f200SmrgQueryGeometry(Widget w, XtWidgetGeometry *intended, XtWidgetGeometry *preferred)
7689027f4a0Smrg{
7699027f4a0Smrg    UCSLabelWidget lw = (UCSLabelWidget)w;
7709027f4a0Smrg
7719027f4a0Smrg    preferred->request_mode = CWWidth | CWHeight;
772fe2ac8d7Smrg    preferred->width = (lw->label.label_width +
7739027f4a0Smrg			    2 * lw->label.internal_width +
7749027f4a0Smrg			    LEFT_OFFSET(lw));
775fe2ac8d7Smrg    preferred->height = lw->label.label_height +
7769027f4a0Smrg			    2 * lw->label.internal_height;
7779027f4a0Smrg    if (  ((intended->request_mode & (CWWidth | CWHeight))
7789027f4a0Smrg	   	== (CWWidth | CWHeight)) &&
7799027f4a0Smrg	  intended->width == preferred->width &&
7809027f4a0Smrg	  intended->height == preferred->height)
7819027f4a0Smrg	return XtGeometryYes;
7829027f4a0Smrg    else if (preferred->width == w->core.width &&
7839027f4a0Smrg	     preferred->height == w->core.height)
7849027f4a0Smrg	return XtGeometryNo;
7859027f4a0Smrg    else
7869027f4a0Smrg	return XtGeometryAlmost;
7879027f4a0Smrg}
788