C++ GDrawSetVisible函數代碼示例

static void GProgressDisplay(void) {
    GDrawSetVisible(current->gw,true);
    current->visible = true;
    if ( current->prev!=NULL && current->prev->visible ) {
	GDrawSetVisible(current->prev->gw,false);
	current->prev->visible = false;
    }
}

static void ManagePalettesVis(GTopLevelD *td, int is_visible ) {
    GTopLevelD *palette;

    if ( td->w!=last_paletted_focus_window )
return;
    for ( palette=td->palettes; palette!=NULL; palette = palette->nextp ) {
	if ( is_visible && palette->w->visible_request )
	    GDrawSetVisible(palette->w,true);
	else if ( !is_visible && palette->w->visible_request ) {
	    GDrawSetVisible(palette->w,false);
	    palette->w->visible_request = true;
	}
    }
}

static int AW2_OK(GGadget *g, GEvent *e) {
    if ( e->type==et_controlevent && e->u.control.subtype == et_buttonactivate ) {
	GWindow gw = GGadgetGetWindow(g);
	struct widthinfo *wi = GDrawGetUserData(gw);
	int err = false;
	int separation, min_side, max_side, height, loop;

	separation = GetInt8(gw,CID_Separation, _("Separation"),&err);
	min_side = GetInt8(gw,CID_MinSep, _("Min Bearing"),&err);
	max_side = GetInt8(gw,CID_MaxSep, _("Max Bearing"),&err);
	height = GetInt8(gw,CID_Height, _("Height"),&err);
	loop = GetInt8(gw,CID_Loop, _("Loop Count"),&err);
	if ( err )
return( true );

	GDrawSetVisible(gw,false);
	GDrawSync(NULL);
	GDrawProcessPendingEvents(NULL);

	width_last_em_size     = wi->sf->ascent + wi->sf->descent;
	width_separation       = separation;
	wi->sf->width_separation=separation;
	if ( wi->sf->italicangle==0 )
	    width_min_side_bearing = min_side;
	width_max_side_bearing = max_side;
	width_chunk_height     = height;
	width_loop_cnt         = loop;

	AutoWidth2((FontViewBase *) wi->fv,separation,min_side,max_side,
		height, loop);
	wi->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 void GTabSetChangeSel(GTabSet *gts, int sel,int sendevent) {
    int i, width;
    int oldsel = gts->sel;

    if ( sel==-2 )		/* left arrow */
	--gts->toff;
    else if ( sel==-3 )
	++gts->toff;
    else if ( sel<0 || sel>=gts->tabcnt || gts->tabs[sel].disabled )
return;
    else {
	if ( gts->vertical )
	    gts->sel = sel;
	else {
	    for ( i=0; i<gts->rcnt && sel>=gts->rowstarts[i+1]; ++i );
	    if ( gts->active_row != i ) {
		gts->active_row = i;
		if ( gts->rcnt>1 && (!gts->filllines || gts->offset_per_row!=0))
		    GTabSetFigureWidths(gts);
	    }
	    gts->sel = sel;
	    if ( sel<gts->toff )
		gts->toff = sel;
	    else if ( gts->scrolled ) {
		for ( i=gts->toff; i<sel && gts->tabs[i].x!=0x7fff; ++i );
		if ( gts->tabs[i].x==0x7fff ) {
		    width = gts->g.r.width-2*gts->arrow_width;	/* it will have a left arrow */
		    if ( sel!=gts->tabcnt )
			width -= gts->arrow_width;		/* it might have a right arrow */
		    for ( i=sel; i>=0 && width-gts->tabs[i].width>=0; --i )
			width -= gts->tabs[i].width;
		    if ( ++i>sel ) i = sel;
		    gts->toff = i;
		}
	    }
	}
	if ( oldsel!=sel ) {
	    if ( sendevent )
		GTabSetChanged(gts,oldsel);
	    if ( gts->tabs[oldsel].w!=NULL )
		GDrawSetVisible(gts->tabs[oldsel].w,false);
	    if ( gts->tabs[gts->sel].w!=NULL )
		GDrawSetVisible(gts->tabs[gts->sel].w,true);
	}
    }
    _ggadget_redraw(&gts->g);
}

void CVMouseDownRuler(CharView *cv, GEvent *event) {

    cv->autonomous_ruler_w = false;

    RulerPlace(cv,event);
    cv->p.rubberlining = true;
    GDrawSetVisible(cv->ruler_w,true);
}

void GWidgetRequestVisiblePalette(GWindow palette,int visible) {
    GTopLevelD *td = (GTopLevelD *) (palette->widget_data);

    if ( td->owner!=NULL ) {
	palette->visible_request = visible;
	if ( td->owner->w == last_paletted_focus_window )
	    GDrawSetVisible(palette,visible);
    }
}

static void start_splash_screen(void){
    GDrawSetVisible(splashw,true);
    GDrawSync(NULL);
    GDrawProcessPendingEvents(NULL);
    GDrawProcessPendingEvents(NULL);
    splasht = GDrawRequestTimer(splashw,1000,1000,NULL);

    localsplash = false;
}

static int DoFindOne(SearchView *sv,int startafter) {
    int i, gid;
    SplineChar *startcur = sv->sd.curchar;

    /* It is possible that some idiot deleted the current character since */
    /*  the last search... do some mild checks */
    if ( sv->sd.curchar!=NULL &&
	    sv->sd.curchar->parent == sv->sd.fv->sf &&
	    sv->sd.curchar->orig_pos>=0 && sv->sd.curchar->orig_pos<sv->sd.fv->sf->glyphcnt &&
	    sv->sd.curchar==sv->sd.fv->sf->glyphs[sv->sd.curchar->orig_pos] )
	/* Looks ok */;
    else
	sv->sd.curchar=startcur=NULL;

    if ( !sv->sd.subpatternsearch ) startafter = false;

    if ( sv->showsfindnext && sv->sd.curchar!=NULL )
	i = sv->sd.fv->map->backmap[sv->sd.curchar->orig_pos]+1-startafter;
    else {
	startafter = false;
	if ( !sv->sd.onlyselected )
	    i = 0;
	else {
	    for ( i=0; i<sv->sd.fv->map->enccount; ++i )
		if ( sv->sd.fv->selected[i] && (gid=sv->sd.fv->map->map[i])!=-1 &&
			sv->sd.fv->sf->glyphs[gid]!=NULL )
	    break;
	}
    }
 
    for ( ; i<sv->sd.fv->map->enccount; ++i ) {
	if (( !sv->sd.onlyselected || sv->sd.fv->selected[i]) && (gid=sv->sd.fv->map->map[i])!=-1 &&
		sv->sd.fv->sf->glyphs[gid]!=NULL ) {
	    SCSplinePointsUntick(sv->sd.fv->sf->glyphs[gid],sv->sd.fv->active_layer);
	    if ( SearchChar(&sv->sd,gid,startafter) )
    break;
	}
	startafter = false;
    }
    if ( i>=sv->sd.fv->map->enccount ) {
	ff_post_notice(_("Not Found"),sv->showsfindnext?_("The search pattern was not found again in the font %.100s"):_("The search pattern was not found in the font %.100s"),sv->sd.fv->sf->fontname);
	sv->sd.curchar = startcur;
	GGadgetSetTitle8(GWidgetGetControl(sv->gw,CID_Find),_("Find"));
	sv->showsfindnext = false;
return( false );
    }
    SVSelectSC(sv);
    if ( sv->lastcv!=NULL && sv->lastcv->b.sc==startcur && sv->lastcv->b.fv== sv->sd.fv ) {
	CVChangeSC(sv->lastcv,sv->sd.curchar);
	GDrawSetVisible(sv->lastcv->gw,true);
	GDrawRaise(sv->lastcv->gw);
    } else
	sv->lastcv = CharViewCreate(sv->sd.curchar,(FontView *) sv->sd.fv,-1);
    GGadgetSetTitle8(GWidgetGetControl(sv->gw,CID_Find),_("Find Next"));
    sv->showsfindnext = true;
return( true );
}

void CPStartInfo(CharView *cv, GEvent *event) {

    if ( !cv->showcpinfo )
return;
    cv->autonomous_ruler_w = false;

    CpInfoPlace(cv,event);
    GDrawSetVisible(cv->ruler_w,true);
}

static int GFD_New(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;
	GDrawSetVisible(GGadgetGetWindow(g),false);
	FontNew();
    }
return( true );
}

void ShowErrorWindow(void) {
    if ( errdata.gw==NULL )
return;
    GDrawSetVisible(errdata.gw,true);
    GDrawRaise(errdata.gw);
    if ( errdata.showing )
	GDrawRequestExpose(errdata.v,NULL,false);
    errdata.showing = true;
}

void ShowAboutScreen(void) {
    static int first=1;

    if ( first ) {
	GDrawResize(splashw,splashimage.u.image->width,splashimage.u.image->height+linecnt*fh);
	first = false;
    }
    if ( splasht!=NULL )
	GDrawCancelTimer(splasht);
    splasht=NULL;
    GDrawSetVisible(splashw,true);
}

void GWidgetHidePalettes(void) {
    GTopLevelD *td, *palette;

    if ( last_paletted_focus_window==NULL )
return;
    td = (GTopLevelD *) (last_paletted_focus_window->widget_data);
    for ( palette=td->palettes; palette!=NULL; palette = palette->nextp ) {
	if ( palette->w->visible_request ) {
	    GDrawSetVisible(palette->w,false);
	    palette->w->visible_request = true;
	}
    }
}

static void CreateErrorWindow(void) {
    GWindowAttrs wattrs;
    FontRequest rq;
    GRect pos,size;
    int as, ds, ld;
    GWindow gw;
    GGadgetData gd;
    extern int _GScrollBar_Width;

    GDrawGetSize(GDrawGetRoot(NULL),&size);

    memset(&wattrs,0,sizeof(wattrs));
    wattrs.mask = wam_events|wam_cursor|wam_utf8_wtitle|wam_isdlg|wam_positioned;
    wattrs.event_masks = ~(1<<et_charup);
    wattrs.is_dlg = true;
    wattrs.cursor = ct_pointer;
    wattrs.positioned = true;
    wattrs.utf8_window_title = _("Warnings");
    pos.width = GDrawPointsToPixels(NULL,GGadgetScale(400));
    pos.height = GDrawPointsToPixels(NULL,GGadgetScale(100));
    pos.x = size.width - pos.width - 10;
    pos.y = size.height - pos.height - 30;
    errdata.gw = gw = GDrawCreateTopWindow(NULL,&pos,warnings_e_h,&errdata,&wattrs);

    memset(&rq,0,sizeof(rq));
    rq.utf8_family_name = SANS_UI_FAMILIES;
    rq.point_size = 10;
    rq.weight = 400;
    errdata.font = GDrawInstanciateFont(NULL,&rq);
    errdata.font = GResourceFindFont("Warnings.Font",errdata.font);
    GDrawWindowFontMetrics(errdata.gw,errdata.font,&as,&ds,&ld);
    errdata.as = as;
    errdata.fh = as+ds;

    memset(&gd,0,sizeof(gd));
    gd.pos.y = 0;
    gd.pos.height = pos.height;
    gd.pos.width = GDrawPointsToPixels(gw,_GScrollBar_Width);
    gd.pos.x = pos.width-gd.pos.width;
    gd.flags = gg_visible|gg_enabled|gg_pos_in_pixels|gg_sb_vert;
    errdata.vsb = GScrollBarCreate(gw,&gd,&errdata);

    pos.width -= gd.pos.width;
    pos.x = pos.y = 0;
    wattrs.mask = wam_events|wam_cursor;
    errdata.v = GWidgetCreateSubWindow(gw,&pos,warningsv_e_h,&errdata,&wattrs);
    GDrawSetVisible(errdata.v,true);

    errdata.linecnt = pos.height/errdata.fh;
    errdata.start_l = errdata.end_l = -1;
}