自学教程：C++ GDrawGetUserData函数代码示例

static inte_h (GWindow gw, GEvent *event){  if (event->type == et_close)    {      struct gfc_data *d = GDrawGetUserData (gw);      d->done = true;    }  else if (event->type == et_map)    /* Above palettes */    GDrawRaise (gw);  else if (event->type == et_char)    return (false);  else if (event->type == et_mousemove ||           (event->type == et_mousedown && event->u.mouse.button == 3))    {      struct gfc_data *d = GDrawGetUserData (gw);      GFileChooserPopupCheck (d->gfc, event);    }  else if ((event->type == et_mouseup || event->type == et_mousedown) &&           (event->u.mouse.button >= 4 && event->u.mouse.button <= 7))    {      struct gfc_data *d = GDrawGetUserData (gw);      return (GGadgetDispatchEvent ((GGadget *) (d->gfc), event));    }  return (true);}

static int kpd_e_h(GWindow gw, GEvent *event) {    if ( event->type==et_close ) {	KPData *kpd = GDrawGetUserData(gw);	kpd->done = true;    } else if ( event->type == et_mousemove ) {	kpdpopup(GDrawGetUserData(gw));    } else if ( event->type == et_expose ) {	KPData *kpd = GDrawGetUserData(gw);	GRect size, sbsize;	GDrawGetSize(kpd->v,&size);	GGadgetGetSize(GWidgetGetControl(kpd->gw,CID_ScrollBar),&sbsize);	GDrawSetLineWidth(gw,0);	GDrawDrawLine(gw,size.x,size.y-1,sbsize.x+sbsize.width-1,size.y-1,0x000000);	GDrawDrawLine(gw,size.x,size.y+size.height,sbsize.x+sbsize.width-1,size.y+size.height,0x000000);	GDrawDrawLine(gw,size.x-1,size.y-1,size.x-1,size.y+size.height,0x000000);    } else if ( event->type == et_char ) {	if ( event->u.chr.keysym == GK_F1 || event->u.chr.keysym == GK_Help ) {	    help("kernpairs.html");return( true );	}	if ( event->u.chr.chars[0]!='/0' && event->u.chr.chars[1]=='/0' ) {	    enum sortby sort = GGadgetGetFirstListSelectedItem(GWidgetGetControl(gw,CID_SortBy));	    KPData *kpd = GDrawGetUserData(gw);	    if ( sort!=sb_kern ) {		KPScrollTo(kpd,event->u.chr.chars[0],sort);return( true );	    } else		GDrawBeep(NULL);	}return( false );    } else if ( event->type == et_resize && event->u.resize.sized ) {	KP_Resize((KPData *) GDrawGetUserData(gw) );    }return( true );}

static int e_h(GWindow gw, GEvent *event) {    if ( event->type==et_close ) {	struct gfc_data *d = GDrawGetUserData(gw);	d->done = true;    } else if ( event->type == et_map ) {	/* Above palettes */	GDrawRaise(gw);    } else if ( event->type == et_char ) {return( false );    } else if ( event->type == et_mousemove ||	    (event->type==et_mousedown && event->u.mouse.button==3 )) {	struct gfc_data *d = GDrawGetUserData(gw);	if ( !WithinList(d,event) )	    GFileChooserPopupCheck(d->gfc,event);    } else if (( event->type==et_mouseup || event->type==et_mousedown ) &&	    (event->u.mouse.button>=4 && event->u.mouse.button<=7) ) {	struct gfc_data *d = GDrawGetUserData(gw);return( GGadgetDispatchEvent((GGadget *) (d->gfc),event));    } else if ( event->type == et_resize ) {	GRect r, size;	struct gfc_data *d = GDrawGetUserData(gw);	if ( d->gfc!=NULL ) {	    GDrawGetSize(gw,&size);	    GGadgetGetSize(d->gfc,&r);	    GGadgetResize(d->gfc,size.width-2*r.x,r.height);	}    }return( event->type!=et_char );}

static int nld_e_h(GWindow gw, GEvent *event) {    if ( event->type==et_close ) {	struct nldlg *d = GDrawGetUserData(gw);	d->done = true;    } else if ( event->type == et_char ) {return( false );    } else if ( event->type==et_controlevent && event->u.control.subtype==et_buttonactivate ) {	struct nldlg *d = GDrawGetUserData(gw);	d->done = true;	d->ok = GGadgetGetCid(event->u.control.g);    }return( true );}

static int DE_Delete(GGadget *g, GEvent *e) {    GWindow gw;    int *done;    GGadget *list;    int sel,i;    Encoding *item;    if ( e->type==et_controlevent &&            (e->u.control.subtype == et_buttonactivate ||             e->u.control.subtype == et_listdoubleclick )) {        gw = GGadgetGetWindow(g);        done = GDrawGetUserData(gw);        list = GWidgetGetControl(gw,CID_Encodings);        sel = GGadgetGetFirstListSelectedItem(list);        i=0;        for ( item=enclist; item!=NULL; item=item->next ) {            if ( item->builtin )                /* Do Nothing */;            else if ( i==sel )                break;            else                ++i;        }        if ( item!=NULL )            DeleteEncoding(item);        *done = true;    }    return( true );}

static int _BdfP_VScroll(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_scrollbarchange ) {	struct bdf_dlg *bd = (struct bdf_dlg *) GDrawGetUserData(GGadgetGetWindow(g));	BdfP_VScroll(bd,&e->u.control.u.sb);    }return( true );}

static int BdfP_Cancel(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	struct bdf_dlg *bd = GDrawGetUserData(GGadgetGetWindow(g));	BdfP_DoCancel(bd);    }return( true );}

static int GFD_Cancel(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	struct gfc_data *d = GDrawGetUserData(GGadgetGetWindow(g));	d->done = true;    }return( true );}

static int Filter_OK(GGadget *g, GEvent *e) {    struct filter_d *d;    struct matrix_data *md;    int rows,i,cnt;    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	if ( user_font_filters!=NULL ) {	    for ( i=0; user_font_filters[i].name!=NULL; ++i ) {		free(user_font_filters[i].name);		free(user_font_filters[i].filter);	    }	    free(user_font_filters);	    user_font_filters = NULL;	}	d = GDrawGetUserData(GGadgetGetWindow(g));	md = GMatrixEditGet(d->gme,&rows);	for ( i=cnt=0; i<rows; ++i )	    if ( !md[2*i].frozen )		++cnt;	if ( cnt!=0 ) {	    user_font_filters = malloc((cnt+1)*sizeof(struct openfilefilters));	    for ( i=cnt=0; i<rows; ++i ) if ( !md[2*i].frozen ) {		user_font_filters[cnt].name = copy(md[2*i].u.md_str);		user_font_filters[cnt].filter = copy(md[2*i+1].u.md_str);		++cnt;	    }	    user_font_filters[cnt].name = user_font_filters[cnt].filter = NULL;	}	SavePrefs(true);	d->done = true;    }return( true );}

static int OD_Cancel(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	OutlineData *od = GDrawGetUserData(GGadgetGetWindow(g));	od->done = true;    }return( true );}

static int L2L_OK(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	L2LDlg *d = GDrawGetUserData(GGadgetGetWindow(g));	int from, to, clear;	int err=0;	double errbound;	from = GGadgetGetFirstListSelectedItem(GWidgetGetControl(d->gw,CID_FromLayer));	to   = GGadgetGetFirstListSelectedItem(GWidgetGetControl(d->gw,CID_ToLayer));	if ( d->l2l==l2l_copy ) {	    clear = GGadgetIsChecked(GWidgetGetControl(d->gw,CID_ClearOld));	    if ( d->cv )		_DoCVCopy(d->cv,from,to,clear);	    else		_DoFVCopy(d->fv,from,to,clear);	} else {	    errbound = GetReal8(d->gw,CID_ErrorBound,_("Error Bound"),&err);	    if ( err )return( true );	    if ( d->cv )		_DoCVCompare(d->cv,from,to,errbound);	    else		_DoFVCompare(d->fv,from,to,errbound);	}	d->done = true;    }return( true );}

static int BaseLang_OK(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {        BaseLangDlg *b = GDrawGetUserData(GGadgetGetWindow(g));        GGadget *g = GWidgetGetControl(b->gw,CID_Languages);        int r, rows, cols = GMatrixEditGetColCnt(g);        struct matrix_data *md = GMatrixEditGet(g,&rows);        struct baselangextent *cur, *last;        if ( md==NULL )            return( true );        b->old = last = NULL;        for ( r=0; r<rows; ++r ) {            cur = XZALLOC(struct baselangextent);            cur->lang = TagFromString(md[r*cols+0].u.md_str);            cur->descent = md[r*cols+1].u.md_ival;            cur->ascent = md[r*cols+2].u.md_ival;            cur->features = (struct baselangextent *) md[r*cols+3].u.md_str;            md[r*cols+3].u.md_str = NULL;            if ( last==NULL )                b->old = cur;            else                last->next = cur;            last = cur;        }        b->done = true;    }

static int AnchorD_Cancel(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	AnchorDlg *a = GDrawGetUserData(GGadgetGetWindow(g));	AnchorD_DoCancel(a);    }return( true );}

static int delta_e_h(GWindow gw, GEvent *event) {    if ( event->type==et_close ) {	QGData *qg = GDrawGetUserData(gw);	qg->done = true;    } else if ( event->type == et_char ) {return( false );    } else if ( event->type == et_map ) {	/* Above palettes */	GDrawRaise(gw);    } else if ( event->type == et_destroy ) {	QGData *qg = GDrawGetUserData(gw);	free(qg->qg);	free(qg);    }return( true );}

static int Delta_Cancel(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	QGData *qg = GDrawGetUserData(GGadgetGetWindow(g));	qg->done = true;    }return( true );}

static int Goto_OK(GGadget *g, GEvent *e) {    GWindow gw;    GotoData *d;    char *ret;    int i;    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	gw = GGadgetGetWindow(g);	d = GDrawGetUserData(gw);	ret = GGadgetGetTitle8(GWidgetGetControl(gw,CID_Name));	if ( d->ranges!=NULL ) {	    for ( i=0; d->ranges[i].text!=NULL; ++i ) {		if ( strcmp(ret,(char *) d->ranges[i].text)==0 ) {		    d->ret = (intpt) d->ranges[i].userdata;	    break;		}	    }	}	if ( d->ret==-1 ) {	    d->ret = NameToEncoding(d->sf,d->map,ret);	    if ( d->ret<0 || (d->ret>=d->map->enccount && d->sf->cidmaster==NULL ))		d->ret = -1;	    if ( d->ret==-1 ) {		ff_post_notice(_("Goto"),_("Could not find the glyph: %.70s"),ret);	    } else		d->done = true;	} else	    d->done = true;    }return( true );}

static int FtPpem_Cancel(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	FtSizeData *fsd = GDrawGetUserData(GGadgetGetWindow(g));	fsd->done = true;    }return( true );}

static int sv_e_h(GWindow gw, GEvent *event) {    SearchView *sv = (SearchView *) ((CharViewBase *) GDrawGetUserData(gw))->container;    switch ( event->type ) {      case et_expose:	SVDraw(sv,gw,event);      break;      case et_resize:	if ( event->u.resize.sized )	    SVResize(sv,event);      break;      case et_char:	SVChar(sv,event);      break;      case et_timer:	SVCheck(sv);      break;      case et_close:	SV_DoClose((struct cvcontainer *) sv);      break;      case et_create:      break;      case et_destroy:	SearchViewFree(sv);      break;      case et_map:	if ( event->u.map.is_visible )	    CVPaletteActivate(sv->cv_srch.inactive?&sv->cv_rpl:&sv->cv_srch);	else	    CVPalettesHideIfMine(sv->cv_srch.inactive?&sv->cv_rpl:&sv->cv_srch);	sv->isvisible = event->u.map.is_visible;      break;    }return( true );}

static int OD_OK(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	OutlineData *od = GDrawGetUserData(GGadgetGetWindow(g));	real width, gap;	int err = 0;	width = GetReal8(od->gw,CID_Width,_("Outline Width"),&err);	if ( od->isinline )	    gap = GetReal8(od->gw,CID_Gap,_("_Gap:"),&err);	if ( err )return(true);	def_outline_width = width;	if ( od->isinline ) {	    def_gap_width = gap;	    if ( od->fv!=NULL )		FVInline((FontViewBase *) od->fv,width,gap);	    else if ( od->cv!=NULL )		CVInline(od->cv,width,gap);	    else if ( od->mv!=NULL )		MVInline(od->mv,width,gap);	} else {	    if ( od->fv!=NULL )		FVOutline((FontViewBase *) od->fv,width);	    else if ( od->cv!=NULL )		CVOutline(od->cv,width);	    else if ( od->mv!=NULL )		MVOutline(od->mv,width);	}	od->done = true;    }return( true );}

static int GCol_OK(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	struct gcol_data *d = GDrawGetUserData(GGadgetGetWindow(g));	double *offs[7] = { &d->col.h, &d->col.s, &d->col.v, &d->col.r, &d->col.g, &d->col.b, &d->col.alpha };	int err = false, i;	double val;	for ( i=0; i<7; ++i ) {	    val = GetReal8(d->gw,cids[i],_(labnames[i]),&err);	    if ( err )return( true );	    if ( i==0 ) {		val = fmod(val,360);		if ( val<0 ) val += 360;	    } else {		if ( val<0 || val>1 ) {		    gwwv_post_error(_("Value out of bounds"), _("Saturation and Value, and the three colors must be between 0 and 1"));return( true );		}	    }	    *offs[i] = val;	}	d->done = true;    }return( true );}

static int SD_OK(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	OutlineData *od = GDrawGetUserData(GGadgetGetWindow(g));	real width, angle, len;	int err = 0;	width = GetReal8(od->gw,CID_Width,_("Outline Width"),&err);	len = GetReal8(od->gw,CID_ShadowLen,_("Shadow Length:"),&err);	angle = GetReal8(od->gw,CID_LightAngle,_("Light Angle:"),&err);	if ( err )return(true);	def_outline_width = width;	def_shadow_len = len;	def_sun_angle = angle;	angle *= -3.1415926535897932/180;	angle -= 3.1415926535897932/2;	if ( od->fv!=NULL )	    FVShadow((FontViewBase *) od->fv,angle,width,len,od->wireframe);	else if ( od->cv!=NULL )	    CVShadow(od->cv,angle,width,len,od->wireframe);	else if ( od->mv!=NULL )	    MVShadow(od->mv,angle,width,len,od->wireframe);	od->done = true;    }return( true );}

static int progress_eh(GWindow gw, GEvent *event) {    GProgress *p = GDrawGetUserData(gw);    switch ( event->type ) {      case et_destroy:	free(p->line1);	free(p->line2);	free(p);      break;      case et_close:	p->aborted = true;	GDrawSetVisible(gw,false);      break;      case et_expose:	GProgressDraw(p,gw,&event->u.expose.rect);      break;      case et_controlevent:	if ( event->u.control.subtype == et_buttonactivate )	    p->aborted = true;      break;      case et_char:	if ( (event->u.chr.state&ksm_control) && event->u.chr.chars[0]=='.' )	    p->aborted = true;      break;      case et_map:	p->sawmap = true;      break;    }return( true );}

static int GFD_Ok(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	struct gfc_data *d = GDrawGetUserData(GGadgetGetWindow(g));	GGadget *tf;	GFileChooserGetChildren(d->gfc,NULL,NULL,&tf);	if ( *_GGadgetGetTitle(tf)!='/0' ) {	    extern int allow_utf8_glyphnames;	    GTextInfo *ti = GGadgetGetListItemSelected(d->rename);	    char *nlname = u2utf8_copy(ti->text);	    force_names_when_opening = NameListByName(nlname);	    free(nlname);	    if ( force_names_when_opening!=NULL && force_names_when_opening->uses_unicode &&		    !allow_utf8_glyphnames) {		ff_post_error(_("Namelist contains non-ASCII names"),_("Glyph names should be limited to characters in the ASCII character set, but there are names in this namelist which use characters outside that range."));return(true);	    }	    d->done = true;	    d->ret = GGadgetGetTitle(d->gfc);	    // Trim trailing '/' if its there and put that string back as	    // the d->gfc string.	    int tmplen = u_strlen( d->ret );	    if( tmplen > 0 ) {		if( d->ret[ tmplen-1 ] == '/' ) {		    unichar_t* tmp = u_copy( d->ret );		    tmp[ tmplen-1 ] = '/0';		    GGadgetSetTitle(d->gfc, tmp);		    free(tmp);		    d->ret = GGadgetGetTitle(d->gfc);		}	    }	}    }return( true );}

static int JSTF_Glyph_OK(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	struct glyph_list_dlg *gld = GDrawGetUserData(GGadgetGetWindow(g));	int rows, i, len;	struct matrix_data *strings = GMatrixEditGet(GWidgetGetControl(gld->gw,CID_Glyphs), &rows);	char *ret;	if ( rows==0 )	    gld->ret = NULL;	else {	    len = 0;	    for ( i=0; i<rows; ++i )		len += strlen(strings[1*i+0].u.md_str) +1;	    ret = galloc(len+1);	    for ( i=0; i<rows; ++i ) {		strcpy(ret,strings[1*i+0].u.md_str);		strcat(ret," ");		ret += strlen(ret);	    }	    if ( ret>gld->ret && ret[-1] == ' ' )		ret[-1] = '/0';	    gld->ret = GlyphNameListDeUnicode(ret);	    free(ret);	}	gld->done = true;    }return( true );}

static int JSTF_Lookup_OK(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	struct glyph_list_dlg *gld = GDrawGetUserData(GGadgetGetWindow(g));	int rows, i, len;	struct matrix_data *strings = GMatrixEditGet(GWidgetGetControl(gld->gw,CID_Lookups), &rows);	char *ret;	if ( rows==0 )	    gld->ret = NULL;	else {	    len = 0;	    for ( i=0; i<rows; ++i ) {		OTLookup *otl = (OTLookup *) strings[1*i+0].u.md_ival;		len += strlen(otl->lookup_name) +2;	    }	    gld->ret = ret = galloc(len+1);	    for ( i=0; i<rows; ++i ) {		OTLookup *otl = (OTLookup *) strings[1*i+0].u.md_ival;		strcpy(ret,otl->lookup_name);		strcat(ret,", ");		ret += strlen(ret);	    }	    if ( ret>gld->ret && ret[-1] == ' ' )		*--ret = '/0';	    if ( ret>gld->ret && ret[-1] == ',' )		*--ret = '/0';	}	gld->done = true;    }return( true );}

static int JSTF_Script_OK(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	Jstf_Dlg *jd = GDrawGetUserData(GGadgetGetWindow(g));	SplineFont *sf = jd->sf;	Justify *head=NULL, *last=NULL, *cur;	int rows, i;	int cols = GMatrixEditGetColCnt(GWidgetGetControl(jd->gw,CID_Scripts));	struct matrix_data *strings = GMatrixEditGet(GWidgetGetControl(jd->gw,CID_Scripts), &rows);	for ( i=0; i<rows; ++i ) {	    cur = chunkalloc(sizeof(Justify));	    cur->script = Str2Tag(strings[cols*i+0].u.md_str);	    cur->extenders = copy(strings[cols*i+1].u.md_str);	    cur->langs = strings[cols*i+3].u.md_addr;	    if ( head==NULL )		head = cur;	    else		last->next = cur;	    last = cur;	}	JustifyFree(sf->justify);	sf->justify = head;	jd->done = true;    }return( true );}

static int BdfP_OK(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	struct bdf_dlg *bd = GDrawGetUserData(GGadgetGetWindow(g));	int i;	struct xlfd_components components;	char *xlfd;	if ( !BdfP_FinishTextField(bd))return( true );	for ( i=0; i<bd->fcnt; ++i ) {	    BDFFont *bdf = bd->fonts[i].bdf;	    BDFProperties *temp = bdf->props;	    int pc = bdf->prop_cnt;	    bdf->props = bd->fonts[i].old_props;	    bdf->prop_cnt = bd->fonts[i].old_prop_cnt;	    BDFPropsFree(bdf);	    bdf->props = temp;	    bdf->prop_cnt = pc;	    xlfd = BdfPropHasString(bdf,"FONT",NULL);	    if ( xlfd!=NULL )		XLFD_GetComponents(xlfd,&components);	    else		XLFD_CreateComponents(bdf,bd->map, -1, &components);	    bdf->res = components.res_y;	}	free(bd->fonts);	bd->sf->changed = true;	bd->done = true;    }return( true );}

static int PoV_Vanish(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_textchanged ) {	struct nldlg *d = GDrawGetUserData(GGadgetGetWindow(g));	PoV_DoVanish(d);    }return( true );}

static int SD_LangChanged(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_radiochanged ) {	struct sd_data *sd = GDrawGetUserData(GGadgetGetWindow(g));	_SD_LangChanged(sd);    }return( true );}

static int CW_Cancel(GGadget *g, GEvent *e) {    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {	CreateWidthDlg *wd = GDrawGetUserData(GGadgetGetWindow(g));	wd->wd.done = true;    }return( true );}