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pitel:itu:cviceni3

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pitel:itu:cviceni3 [03. 07. 2012, 11.53:41] – upraveno mimo DokuWiki 127.0.0.1pitel:itu:cviceni3 [30. 12. 2022, 13.43:01] (aktuální) – upraveno mimo DokuWiki 127.0.0.1
Řádek 1: Řádek 1:
 +====== X-Window (Motif) ======
 +[[http://www.flickr.com/photos/pitel/3029775766/|{{ http://farm4.static.flickr.com/3185/3029775766_1c9fcdf367_o.png |Motif}}]]
  
 +<file c motif.c>
 +//-----------------------------------------------------------------------------
 +/*
 + *      Motif demo, ITU
 + *      xnovak99,3BIT,2007/2008,ITU
 + */
 +//-----------------------------------------------------------------------------
 +#define AUTHOR_NAME "xkalab00"
 +//-----------------------------------------------------------------------------
 +//-----------------------------------------------------------------------------
 +
 +#include <X11/Intrinsic.h>
 +#include <Xm/Xm.h>
 +#include <X11/keysym.h>
 +/*
 + * Public include files for widgets used in this file.
 + */
 +#include <Xm/MainW.h>
 +#include <Xm/Form.h>
 +#include <Xm/Primitive.h>
 +#include <Xm/Frame.h>
 +#include <Xm/DrawingA.h>
 +#include <Xm/PushB.h>
 +#include <Xm/Label.h>
 +#include <Xm/RowColumn.h>
 +#include <Xm/CascadeB.h>
 +#include <Xm/MessageB.h>
 +#include <Xm/PanedW.h>
 +#include <Xm/Text.h>
 +#include <Xm/ToggleB.h>
 +
 +#include <stdio.h>
 +#include <stdlib.h>
 +#include <fcntl.h>
 +#include <sys/stat.h>
 +
 +//-----------------------------------------------------------------------------
 +
 +Widget          topLevel, 
 +                mainWin, 
 +                frame, 
 +                menu_bar, 
 +                messagebox, 
 +                drawarea,
 +                pane,
 +                row, 
 +                text,
 +                mainmenub[5], 
 +                menu, 
 +                toggle1, 
 +                toggle2;
 +
 +Pixel           cl_red, cl_black, cl_orange, cl_white, cl_green; //colors
 +int             used_menu=0;
 +int             draw_area_usage = 0;
 +
 +static char *lines;
 +static int nlines;
 +static int ncols;
 +
 +//-----------------------------------------------------------------------------
 +// prototypes
 +
 +void AllocColors();
 +void read_file(const char *name);
 +extern ssize_t read(int,void *, size_t);
 +extern int close(int);
 +
 +//-----------------------------------------------------------------------------
 +//Callbacks
 +
 +void messageboxCB(Widget w, XtPointer client_data, XtPointer call_data)
 +{
 +    XtUnmanageChild(messagebox);
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +void textCB(Widget w, XtPointer client_data, XtPointer call_data)
 +{
 +    //zneplatnime kreslici plochu
 +    XClearArea(XtDisplay(drawarea),XtWindow(drawarea),0,0,0,0,1);
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +void menuCB(Widget w, XtPointer client_data, XtPointer call_data)
 +{
 +    //printf("menuCB\n");
 +    XmString str;
 + XmPushButtonCallbackStruct *cb= (XmPushButtonCallbackStruct *)call_data;
 +    cb->event->xmotion.x_root=cb->event->xmotion.x_root-cb->event->xmotion.x;
 + cb->event->xmotion.y_root=cb->event->xmotion.y_root-cb->event->xmotion.y+25;
 +    switch((int)client_data)
 +    {
 +    case 0://quit button
 +        exit(1);
 +    break;
 +    case 1://first button
 +        used_menu=0;
 +        XmMenuPosition(menu,(XButtonPressedEvent *)cb->event);
 +        XtManageChild(menu);
 +    break;
 +    case 2://second button
 +        used_menu=1;
 +        XmMenuPosition(menu,(XButtonPressedEvent *)cb->event);
 +        XtManageChild(menu);
 +    break;
 +    case 3://about button
 +
 +        str = XmStringCreateLocalized("About");
 +        XtVaSetValues(messagebox,XmNdialogTitle,str,
 +                                    XmNmessageAlignment,XmALIGNMENT_CENTER,NULL);
 +        XmStringFree(str);
 +
 +        str = XmStringCreateLocalized("ITU demonstracni projekt 2007\n\n" AUTHOR_NAME);
 +        XtVaSetValues(messagebox,XmNmessageString,str,NULL);
 +        XmStringFree(str);
 +
 +        str = XmStringCreateLocalized("Leave");
 +        XtVaSetValues(messagebox,XmNokLabelString,str,NULL);
 +        XmStringFree(str);
 +
 +        XtManageChild(messagebox);
 +    break;
 +
 +    default:
 +    break;
 +
 +    }
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +void menu_toggle1CB(Widget w, XtPointer client_data, XtPointer call_data)
 +{
 +    unsigned char ro_rw;
 +    XtVaGetValues(w,XmNset,&ro_rw,NULL);
 +    if(ro_rw==XmUNSET)
 +
 +        XtVaSetValues(text,XmNeditable,1,NULL);
 +    else
 +        XtVaSetValues(text,XmNeditable,0,NULL);
 +    //printf("toggle1CB:%u\n",ro_rw);
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +void menu_toggle2CB(Widget w, XtPointer client_data, XtPointer call_data)
 +{
 +    unsigned char progress;
 +    XtVaGetValues(w,XmNset,&progress,NULL);
 +    if(progress==XmUNSET) {
 +        //printf("OFF\n");
 +        draw_area_usage = 0;
 +    } else {
 +        //printf("ON\n");
 +        draw_area_usage = 1;
 +    }
 +    XClearArea(XtDisplay(drawarea),XtWindow(drawarea),0,0,0,0,1);
 +    //printf("toggle1CB:%u\n",ro_rw);
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +void MenuX_ButtonClickCB(Widget w, XtPointer client_data, XtPointer call_data)
 +{
 +    //printf("MenuX_buttonclickCB\n");
 +    if(used_menu==0)
 +        XtVaSetValues(mainmenub[1],XmNborderColor,client_data,NULL);
 +    else
 +        XtVaSetValues(mainmenub[2],XmNborderColor,client_data,NULL);
 +    //invalidate Drawarea
 +    XClearArea(XtDisplay(drawarea),XtWindow(drawarea),0,0,0,0,1);
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +void da_exposeCB(Widget w, XtPointer client_data, XtPointer call_data)
 +{
 +    XmTextPosition textcount = XmTextGetLastPosition(text);
 +    XmTextPosition textposition = XmTextGetCursorPosition(text);
 +    Pixel color1;
 +    Pixel color2;
 +    //printf("da_exposeCB\n");
 +    //printf("->%u, %u\n",(int)textposition,(int)textcount);
 +
 +    Arg al[10];
 +    int ac;
 +    Dimension width,height;
 +    ac=0;
 +    XtSetArg(al[ac],XmNheight,&(height)); ac++;
 +    XtSetArg(al[ac],XmNwidth,&(width)); ac++;
 +    XtGetValues(w,al,ac);
 +    XtVaGetValues(mainmenub[1],XmNborderColor,&color1,NULL);
 +    XtVaGetValues(mainmenub[2],XmNborderColor,&color2,NULL);
 +    
 +    XClearWindow(XtDisplay(w), XtWindow(w));
 +    
 +    // drawing primitives
 +
 +    if(draw_area_usage==0)
 +    {
 +        XGCValues v;
 +        GC drawGC;
 +        v.foreground = color1;
 +        v.background = color2;
 +        v.line_width = 1;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w),
 + GCForeground | GCLineWidth , &v);
 + XDrawLine(XtDisplay(w), XtWindow(w), drawGC, 
 + 5, 5,
 + 5, height-5);
 + XDrawLine(XtDisplay(w), XtWindow(w), drawGC, 
 + 5, height-5,
 + width-5, height-5);
 + XDrawLine(XtDisplay(w), XtWindow(w), drawGC, 
 + width-5, height-5,
 + width-5, 5);
 +        XFreeGC(XtDisplay(w),drawGC);
 +
 +        v.foreground = color2;
 +        v.background = color1;
 +        v.line_width = 3;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w),
 + GCForeground | GCLineWidth , &v);
 + XDrawLine(XtDisplay(w), XtWindow(w), drawGC, 
 + 15, 15,
 + 15, height-15);
 + XDrawLine(XtDisplay(w), XtWindow(w), drawGC, 
 + 15, height-15,
 + width/2, height-15);
 +        XFreeGC(XtDisplay(w),drawGC);
 +
 +        v.foreground = color1;
 +        v.background = color2;
 +        v.line_width = 1;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w),
 + GCForeground | GCLineWidth , &v);
 + XFillRectangle(XtDisplay(w), XtWindow(w), drawGC, 
 + 30, 10,
 + 50, height-50);
 +        XFreeGC(XtDisplay(w),drawGC);
 +
 +        v.foreground = color2;
 +        v.background = color1;
 +        v.line_width = 3;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w),
 + GCForeground | GCLineWidth , &v);
 + XDrawRectangle(XtDisplay(w), XtWindow(w), drawGC, 
 + 30, 10,
 + 50, height-50);
 +        XFreeGC(XtDisplay(w),drawGC);
 +
 +        v.foreground = color1;
 +        v.background = color2;
 +        v.line_style = LineOnOffDash;
 +        v.line_width = 2;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w),
 + GCForeground | GCLineWidth |GCLineStyle , &v);
 + XDrawRectangle(XtDisplay(w), XtWindow(w), drawGC, 
 + 100, 10,
 + 70, height-50);
 + XFillArc(XtDisplay(w), XtWindow(w), drawGC, 
 + 200, 10,
 + 70, height-50,90*64,180*64);
 +
 +        XDrawArc(XtDisplay(w), XtWindow(w), drawGC, 
 + 200, 10,
 + 70, height-50,270*64,90*64);
 +        
 +        XFreeGC(XtDisplay(w),drawGC);
 +
 +        v.foreground = color2;
 +        v.background = color1;
 +        v.line_style = LineOnOffDash;
 +        v.line_width = 2;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w),
 + GCForeground | GCLineWidth |GCLineStyle , &v);
 + XFillArc(XtDisplay(w), XtWindow(w), drawGC, 
 + 300, 10,
 + 70, height-50,0*64,180*64);
 + XDrawArc(XtDisplay(w), XtWindow(w), drawGC, 
 + 300, 10,
 + 70, height-50,180*64,45*64);
 +        XFreeGC(XtDisplay(w),drawGC);
 +
 +        v.foreground = cl_black;
 +        v.background = color1;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w),
 + GCForeground | GCBackground , &v);
 +        XDrawString(XtDisplay(w), XtWindow(w),drawGC,width*3/4,height/2,
 +                    "ITU demo",8);
 +        XFreeGC(XtDisplay(w),drawGC);
 +        v.foreground = color1;
 +        v.background = color2;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w),
 + GCForeground | GCBackground , &v);
 +        XDrawString(XtDisplay(w), XtWindow(w),drawGC,width*3/4,height*3/4,
 +                    AUTHOR_NAME,strlen(AUTHOR_NAME));
 +        char buffer[128]="";
 +        sprintf(buffer,"position:%u/%u",(unsigned int)textposition,(unsigned int)textcount);
 +        XDrawString(XtDisplay(w), XtWindow(w),drawGC,width*3/4,height*1/4,
 +                    buffer,strlen(buffer));
 +        XFreeGC(XtDisplay(w),drawGC);
 +        
 +
 +    } else {
 + XGCValues v;
 +        GC drawGC;
 +        double ratio = ((double) textposition / (double) textcount);
 +        
 +        //Pravy obdelnik
 +        v.foreground = color2;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w), GCForeground, &v);
 +        XFillRectangle(XtDisplay(w), XtWindow(w), drawGC, 0, 0, width, height);
 +        
 +        //Levy obdelnik
 +        v.foreground = color1;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w), GCForeground, &v);
 +        XFillRectangle(XtDisplay(w), XtWindow(w), drawGC, 0, 0, ratio * width, height);
 +        
 +        //Text
 +        v.foreground = cl_black;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w), GCForeground, &v);
 +        char buffer[16]="";
 +        sprintf(buffer, "%f %%", ratio * 100);
 +        XDrawString(XtDisplay(w), XtWindow(w), drawGC, width / 2, height / 2, buffer, strlen(buffer));
 +        
 +        //Obrys
 +        v.foreground = cl_black;
 +        v.line_width = 1;
 +        drawGC = XCreateGC(XtDisplay(w), XtWindow(w), GCForeground | GCLineWidth , &v);
 +        XDrawRectangle(XtDisplay(w), XtWindow(w), drawGC, 0, 0, width - 1, height - 1);
 +        
 +        XFreeGC(XtDisplay(w),drawGC);
 +    }
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +void da_inputCB(Widget w, XtPointer client_data, XtPointer call_data)
 +{
 +    //printf("da_inputCB\n");
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +void da_resizeCB(Widget w, XtPointer client_data, XtPointer call_data)
 +{
 +    //printf("da_resizeCB\n");
 +    //da_exposeCB(w,client_data,call_data);
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +int main(int argc, char **argv)
 +{
 +    XtAppContext app_context;
 +    Arg al[10];
 +    int ac=0;
 + Widget tmpBtn;
 +
 +    /*
 +     * Register the default language procedure
 +     */
 +    XtSetLanguageProc(NULL, (XtLanguageProc)NULL, NULL);
 +
 +    /*
 +      application init
 +    */    
 +    topLevel = XtVaAppInitialize(
 +      &app_context, /* Application context */
 +      "ITU demonstracni aplikace", /* Application class */
 +      NULL, 0, /* command line option list */
 +      &argc, argv, /* command line args */
 +      NULL, /* for missing app-defaults file */
 +      NULL); /* terminate varargs list */
 +
 +    messagebox = XmCreateQuestionDialog(topLevel, "MessageBox", NULL, 0);
 +    XtUnmanageChild(XmMessageBoxGetChild(messagebox, XmDIALOG_HELP_BUTTON));
 +    XtUnmanageChild(XmMessageBoxGetChild(messagebox, XmDIALOG_CANCEL_BUTTON));
 +    XtAddCallback(messagebox, XmNokCallback, messageboxCB, (XtPointer)0);
 +    XtAddCallback(messagebox, XmNcancelCallback, messageboxCB, (XtPointer)1);
 +
 +    AllocColors(); 
 +    read_file("motif.c");
 +
 + mainWin = XtVaCreateManagedWidget(
 +      "mainWin", /* widget name */
 +
 +      xmMainWindowWidgetClass, /* widget class */
 +      topLevel, /* parent widget*/
 +      XmNcommandWindowLocation, XmCOMMAND_BELOW_WORKSPACE,
 +      NULL); /* terminate varargs list */
 +
 +    menu_bar = XmCreateMenuBar(mainWin, "main_list", NULL, 0);
 + XtVaSetValues(menu_bar,
 +        XmNheight,30,
 + //XmNbottomShadowColor,cl_black,
 + //XmNtopShadowColor,cl_red,
 + //XmNshadowThickness,0,
 + //XmNborderWidth,1,
 + XmNspacing,2,
 + NULL);
 +
 +    XtManageChild(menu_bar);
 +    
 +    mainmenub[0] = XtVaCreateManagedWidget("Quit!",
 +        xmCascadeButtonWidgetClass, menu_bar,
 + XmNborderColor,cl_black,
 + XmNborderWidth,1,
 + NULL);
 +    XtAddCallback(mainmenub[0], XmNactivateCallback, menuCB, (void *)0);
 +
 +    mainmenub[1] = XtVaCreateManagedWidget("First color",
 +        xmCascadeButtonWidgetClass, menu_bar,
 + XmNborderColor,cl_orange,
 + XmNborderWidth,1,
 + XmNmarginWidth,10,
 + NULL);
 +    XtAddCallback(mainmenub[1], XmNactivateCallback, menuCB, (void *)1);
 +
 +    mainmenub[2] = XtVaCreateManagedWidget("Second color",
 +        xmCascadeButtonWidgetClass, menu_bar,
 + XmNborderColor,cl_green,
 + XmNborderWidth,1,
 + NULL);
 +    XtAddCallback(mainmenub[2], XmNactivateCallback, menuCB, (void *)2);
 +
 +    mainmenub[3] = XtVaCreateManagedWidget("About",
 +        xmCascadeButtonWidgetClass, menu_bar,
 + XmNborderColor,cl_black,
 + XmNborderWidth,1,
 + NULL);
 +    XtAddCallback(mainmenub[3], XmNactivateCallback, menuCB, (void *)3);
 +
 +    //create toggle buttons
 +    
 +    toggle1 = XtCreateManagedWidget("Readonly",xmToggleButtonWidgetClass,menu_bar,al,ac);
 +    XtAddCallback(toggle1, XmNvalueChangedCallback, menu_toggle1CB, NULL);
 +    toggle2 = XtCreateManagedWidget("Progress",xmToggleButtonWidgetClass,menu_bar,al,ac);
 +    XtAddCallback(toggle2, XmNvalueChangedCallback, menu_toggle2CB, NULL);
 +    
 +
 + //---------------------------------------
 + //menu creation
 + menu=XmCreatePopupMenu(mainWin,"menu0",al,ac);
 + tmpBtn = XtVaCreateManagedWidget(
 +      "Orange",     /* widget name */
 +      xmPushButtonWidgetClass, /* widget class */
 +      menu,             /* parent widget*/
 +   XmNbackground,cl_orange,
 +      NULL);         /* terminate varargs list */
 +
 +    XtAddCallback(tmpBtn, XmNactivateCallback, MenuX_ButtonClickCB, (XtPointer)cl_orange);
 + tmpBtn = XtVaCreateManagedWidget(
 +      "Black",      /* widget name */
 +      xmPushButtonWidgetClass,    /* widget class */
 +      menu,              /* parent widget*/
 +   XmNbackground,cl_black,
 +   XmNforeground,cl_white,
 +      NULL);          /* terminate varargs list */
 +
 +    XtAddCallback(tmpBtn, XmNactivateCallback, MenuX_ButtonClickCB, (XtPointer)cl_black);
 + tmpBtn = XtVaCreateManagedWidget(
 +      "Red",      /* widget name */
 +      xmPushButtonWidgetClass, /* widget class */
 +      menu,          /* parent widget*/
 +   XmNbackground,cl_red,
 +      NULL);      /* terminate varargs list */
 +
 +    XtAddCallback(tmpBtn, XmNactivateCallback, MenuX_ButtonClickCB, (XtPointer)cl_red);
 + tmpBtn = XtVaCreateManagedWidget(
 +      "Green", /* widget name */
 +      xmPushButtonWidgetClass, /* widget class */
 +      menu,          /* parent widget*/
 +   XmNbackground,cl_green,
 +      NULL);      /* terminate varargs list */
 +    XtAddCallback(tmpBtn, XmNactivateCallback, MenuX_ButtonClickCB, (XtPointer)cl_green);
 +
 +
 +    pane = XtVaCreateManagedWidget("pane",
 +            xmPanedWindowWidgetClass,mainWin,
 +            NULL);
 +    /*
 +        create text editor
 +    */
 +    text = XmCreateScrolledText(pane, "scrollText", NULL, 0);
 +    XtVaSetValues(text,
 +                        XmNeditMode, XmMULTI_LINE_EDIT,
 +                        XmNcolumns, ncols,
 +                        XmNrows, 1,
 +                        XmNwordWrap, False,
 +                        XmNmaxLength, 100000000,
 +                        XmNvalue, lines,
 +                        //XmNvalue, "lines",
 +                        XmNheight, 200,
 +                        XmNwidth, 300,
 +                        XmNpaneMinimum,200,
 +                        NULL);
 +    XtManageChild(text);
 +
 +    /* cursor position callback registration (for text widget)*/
 +    XtAddCallback(text,XmNmotionVerifyCallback,textCB,NULL);
 +
 +    /*
 +        DrawArea init
 +    */
 +    drawarea = XtVaCreateManagedWidget(
 +      "drawingArea",      /* widget name */
 +      xmDrawingAreaWidgetClass,    /* widget class */
 +      pane,              /* parent widget*/
 +      XmNwidth, 200,      /* set startup width */
 +      XmNheight, 200,      /* set startup height */
 +      XmNpaneMinimum,100,
 +      NULL);         /* terminate varargs list */
 +
 +    XtAddCallback(drawarea, XmNinputCallback, da_inputCB, NULL);
 +    XtAddCallback(drawarea, XmNexposeCallback, da_exposeCB, NULL);
 +    XtAddCallback(drawarea, XmNresizeCallback, da_resizeCB, NULL);
 +    
 +    /*
 +        Place widgets in mainWin
 +    */
 + XmMainWindowSetAreas(mainWin, menu_bar, NULL,NULL  , NULL, NULL);
 +
 +    XtRealizeWidget(topLevel);
 +    XtAppMainLoop(app_context);
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +void AllocColors()
 +{
 + XColor cl;
 + Colormap cmap;
 + Display *display = XOpenDisplay("");
 + cmap = DefaultColormap(display,DefaultScreen(display));
 + cl.red = 0x0;cl.green=0x0;cl.blue=0x0;
 + if(XAllocColor(display,cmap,&cl)==0)
 + fprintf(stderr,"ERR: error allocation color\n");
 + cl_black = cl.pixel;
 + cl.red = 65535;cl.green=0xc3*0xff;cl.blue=0x00;
 + if(XAllocColor(display,cmap,&cl)==0)
 + fprintf(stderr,"ERR: error allocation color\n");
 + cl_orange = cl.pixel;
 + cl.red = 0x00;cl.green=65535;cl.blue=0x00;
 + if(XAllocColor(display,cmap,&cl)==0)
 + fprintf(stderr,"ERR: error allocation color\n");
 + cl_green = cl.pixel;
 + cl.red = 65535;cl.green=65535;cl.blue=65535;
 + if(XAllocColor(display,cmap,&cl)==0)
 + fprintf(stderr,"ERR: error allocation color\n");
 + cl_white = cl.pixel;
 + cl.red = 65535;cl.green=0x00;cl.blue=0x00;
 + if(XAllocColor(display,cmap,&cl)==0)
 + fprintf(stderr,"ERR: error allocation color\n");
 + cl_red = cl.pixel;
 +}
 +
 +//-----------------------------------------------------------------------------
 +
 +void read_file(const char *name)
 +{
 +        int fd;
 +        struct stat st;
 +        char *p,*linep;
 +
 +        if ((fd = open(name, O_RDONLY)) == -1 ||
 +           fstat(fd, &st) == -1) {
 +                fprintf(stderr, "Cannot open %s\n", name);
 +                exit(1);
 +        }
 +        lines = XtMalloc(st.st_size+1);
 +        if (read(fd, lines, st.st_size) != st.st_size) {
 +                fprintf(stderr, "Cannot read %s\n", name);
 +                exit(1);
 +        }
 +        close(fd);
 +        p = lines;
 +        while (p < lines + st.st_size) {
 +                linep = p;
 +                if ((p = strchr(p, '\n')) == NULL) break;
 +                if (p-linep > ncols) ncols = p-linep;
 +                ++p;
 +                ++nlines;
 +        }
 +        lines[st.st_size] = 0;
 +}
 +</file>
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