Date: 2013-07-02T14:38:20+00:00

Actual source code: xinit.c
petsc-3.4.2 2013-07-02

      2: /*
      3:    This file contains routines to open an X window display and window
      4:    This consists of a number of routines that set the various
      5:    fields in the Window structure, which is passed to
      6:    all of these routines.

      8:    Note that if you use the default visual and colormap, then you
      9:    can use these routines with any X toolkit that will give you the
     10:    Window id of the window that it is managing.  Use that instead of the
     11:    call to PetscDrawXiCreateWindow .  Similarly for the Display.
     12: */

     14: #include <../src/sys/classes/draw/impls/x/ximpl.h>

     16: extern PetscErrorCode PetscDrawXiUniformHues(PetscDraw_X*,int);
     17: extern PetscErrorCode PetscDrawXi_wait_map(PetscDraw_X*);
     18: extern PetscErrorCode PetscDrawXiFontFixed(PetscDraw_X*,int,int,PetscDrawXiFont**);
     19: extern PetscErrorCode PetscDrawXiInitCmap(PetscDraw_X*);
     20: extern PetscErrorCode PetscDrawSetColormap_X(PetscDraw_X*,char*,Colormap);

     22: /*
     23:   PetscDrawXiOpenDisplay - Open a display
     24: */
     27: PetscErrorCode PetscDrawXiOpenDisplay(PetscDraw_X *XiWin,char *display_name)
     28: {
     30:   XiWin->disp = XOpenDisplay(display_name);
     31:   if (!XiWin->disp) {
     32:     SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_LIB,"Unable to open display on %s\n.  Make sure your COMPUTE NODES are authorized to connect \n\
     33:     to this X server and either your DISPLAY variable\n\
     34:     is set or you use the -display name option\n",display_name);
     35:   }
     36:   XiWin->screen = DefaultScreen(XiWin->disp);
     37:   return(0);
     38: }

     41: /*
     42:    PetscDrawXiSetGC - set the GC structure in the base window
     43: */
     46: PetscErrorCode PetscDrawXiSetGC(PetscDraw_X *XiWin,PetscDrawXiPixVal fg)
     47: {
     48:   XGCValues gcvalues;             /* window graphics context values */

     51:   /* Set the graphics contexts */
     52:   /* create a gc for the ROP_SET operation (writing the fg value to a pixel) */
     53:   /* (do this with function GXcopy; GXset will automatically write 1) */
     54:   gcvalues.function   = GXcopy;
     55:   gcvalues.foreground = fg;
     56:   XiWin->gc.cur_pix   = fg;
     57:   XiWin->gc.set       = XCreateGC(XiWin->disp,RootWindow(XiWin->disp,XiWin->screen),GCFunction | GCForeground,&gcvalues);
     58:   return(0);
     59: }

     61: /*
     62:     Actually display a window at [x,y] with sizes (w,h)
     63:     If w and/or h are 0, use the sizes in the fields of XiWin
     64:     (which may have been set by, for example, PetscDrawXiSetWindowSize)
     65: */
     68: PetscErrorCode PetscDrawXiDisplayWindow(PetscDraw_X *XiWin,char *label,int x,int y,int w,int h,PetscDrawXiPixVal backgnd_pixel)
     69: {
     70:   unsigned int         wavail,havail;
     71:   XSizeHints           size_hints;
     72:   XWindowAttributes    in_window_attributes;
     73:   XSetWindowAttributes window_attributes;
     74:   int                  depth,border_width;
     75:   unsigned long        wmask;
     76:   PetscBool            flg;
     77:   PetscErrorCode       ierr;

     80:   /* get the available widths */
     81:   wavail = DisplayWidth(XiWin->disp,XiWin->screen);
     82:   havail = DisplayHeight(XiWin->disp,XiWin->screen);
     83:   if (w <= 0 || h <= 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"X Window display has invalid height or width");
     84:   if ((unsigned int) w > wavail) w = wavail;
     85:   if ((unsigned int) h > havail) h = havail;

     87:   border_width = 0;
     88:   if (x < 0) x = 0;
     89:   if (y < 0) y = 0;
     90:   x = ((unsigned int) x + w > wavail) ? wavail - w : (unsigned int)x;
     91:   y = ((unsigned int) y + h > havail) ? havail - h : (unsigned int)y;

     93:   /* We need XCreateWindow since we may need an visual other than the default one */
     94:   XGetWindowAttributes(XiWin->disp,RootWindow(XiWin->disp,XiWin->screen),&in_window_attributes);
     95:   window_attributes.background_pixmap = None;
     96:   window_attributes.background_pixel  = backgnd_pixel;
     97:   /* No border for now */
     98:   window_attributes.border_pixmap     = None;
     99:   /*
    100:   window_attributes.border_pixel      = border_pixel;
    101:   */
    102:   window_attributes.bit_gravity       = in_window_attributes.bit_gravity;
    103:   window_attributes.win_gravity       = in_window_attributes.win_gravity;
    104:   /* Backing store is too slow in color systems */
    105:   window_attributes.backing_store     = 0;
    106:   window_attributes.backing_pixel     = backgnd_pixel;
    107:   window_attributes.save_under        = 1;
    108:   window_attributes.event_mask        = 0;
    109:   window_attributes.do_not_propagate_mask = 0;
    110:   window_attributes.override_redirect = 0;
    111:   window_attributes.colormap          = XiWin->cmap;
    112:   /* None for cursor does NOT mean none, it means cursor of Parent */
    113:   window_attributes.cursor            = None;

    115:   wmask = CWBackPixmap | CWBackPixel    | CWBorderPixmap  | CWBitGravity |
    116:           CWWinGravity | CWBackingStore |CWBackingPixel   |CWOverrideRedirect |
    117:           CWSaveUnder  | CWEventMask    | CWDontPropagate |
    118:           CWCursor     | CWColormap;
    119:   depth = XiWin->depth;

    121:   XiWin->win = XCreateWindow(XiWin->disp,RootWindow(XiWin->disp,XiWin->screen),x,y,w,h,border_width,depth,InputOutput,XiWin->vis,wmask,&window_attributes);
    122:   if (!XiWin->win) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Unable to open X window");

    124:   /* set window manager hints */
    125:   {
    126:     XWMHints      wm_hints;
    127:     XClassHint    class_hints;
    128:     XTextProperty windowname,iconname;

    130:     if (label) XStringListToTextProperty(&label,1,&windowname);
    131:     else       XStringListToTextProperty(&label,0,&windowname);
    132:     if (label) XStringListToTextProperty(&label,1,&iconname);
    133:     else       XStringListToTextProperty(&label,0,&iconname);

    135:     wm_hints.initial_state = NormalState;
    136:     wm_hints.input         = True;
    137:     wm_hints.flags         = StateHint|InputHint;

    139:     /* These properties can be used by window managers to decide how to display a window */
    140:     class_hints.res_name  = (char*)"petsc";
    141:     class_hints.res_class = (char*)"PETSc";

    143:     size_hints.x          = x;
    144:     size_hints.y          = y;
    145:     size_hints.min_width  = 4*border_width;
    146:     size_hints.min_height = 4*border_width;
    147:     size_hints.width      = w;
    148:     size_hints.height     = h;
    149:     size_hints.flags      = USPosition | USSize | PMinSize;

    151:     XSetWMProperties(XiWin->disp,XiWin->win,&windowname,&iconname,0,0,&size_hints,&wm_hints,&class_hints);
    152:     XFree((void*)windowname.value);
    153:     XFree((void*)iconname.value);
    154:   }
    155:   /* make the window visible */
    156:   XSelectInput(XiWin->disp,XiWin->win,ExposureMask | StructureNotifyMask);
    157:   XMapWindow(XiWin->disp,XiWin->win);

    160:   /* some window systems are cruel and interfere with the placement of
    161:      windows.  We wait here for the window to be created or to die */
    162:   if (PetscDrawXi_wait_map(XiWin)) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Wait for X window failed");

    164:   flg  = PETSC_FALSE;
    165:   PetscOptionsGetBool(NULL,"-draw_virtual",&flg,NULL);
    166:   if (flg) {
    167:     XiWin->drw = XCreatePixmap(XiWin->disp,XiWin->win,XiWin->w,XiWin->h,XiWin->depth);
    168:     XDestroyWindow(XiWin->disp,XiWin->win);
    169:     XiWin->win = 0;
    170:     return(0);
    171:   }

    173:   /* Initial values for the upper left corner */
    174:   XiWin->x = 0;
    175:   XiWin->y = 0;
    176:   return(0);
    177: }

    181: PetscErrorCode PetscDrawXiQuickWindow(PetscDraw_X *w,char *host,char *name,int x,int y,int nx,int ny)
    182: {

    186:   PetscDrawXiOpenDisplay(w,host);

    188:   w->vis   = DefaultVisual(w->disp,w->screen);
    189:   w->depth = DefaultDepth(w->disp,w->screen);

    191:   PetscDrawSetColormap_X(w,host,(Colormap)0);

    193:   PetscDrawXiDisplayWindow(w,name,x,y,nx,ny,(PetscDrawXiPixVal)0);
    194:   PetscDrawXiSetGC(w,w->cmapping[1]);
    195:   PetscDrawXiSetPixVal(w,w->background);

    197:   PetscDrawXiFontFixed(w,6,10,&w->font);
    198:   if (w->win) {
    199:     XSetWindowBackground(w->disp,w->win,w->cmapping[0]);
    200:     XFillRectangle(w->disp,w->win,w->gc.set,0,0,nx,ny);
    201:   }
    202:   return(0);
    203: }

    205: /*
    206:    A version from an already defined window
    207: */
    210: PetscErrorCode PetscDrawXiQuickWindowFromWindow(PetscDraw_X *w,char *host,Window win)
    211: {
    212:   Window            root;
    213:   PetscErrorCode    ierr;
    214:   int               d;
    215:   unsigned int      ud;
    216:   XWindowAttributes attributes;

    219:   PetscDrawXiOpenDisplay(w,host);
    220:   w->win = win;
    221:   XGetWindowAttributes(w->disp,w->win,&attributes);

    223:   w->vis   = DefaultVisual(w->disp,w->screen);
    224:   w->depth = DefaultDepth(w->disp,w->screen);
    225:   PetscDrawSetColormap_X(w,host,attributes.colormap);

    227:   XGetGeometry(w->disp,w->win,&root,&d,&d,(unsigned int*)&w->w,(unsigned int*)&w->h,&ud,&ud);
    228:   w->x = w->y = 0;

    230:   PetscDrawXiSetGC(w,w->cmapping[1]);
    231:   PetscDrawXiSetPixVal(w,w->background);
    232:   XSetWindowBackground(w->disp,w->win,w->cmapping[0]);
    233:   PetscDrawXiFontFixed(w,6,10,&w->font);
    234:   return(0);
    235: }

    237: /*
    238:       PetscDrawXiSetWindowLabel - Sets new label in open window.
    239: */
    242: PetscErrorCode PetscDrawXiSetWindowLabel(PetscDraw_X *Xiwin,char *label)
    243: {
    244:   XTextProperty  prop;
    245:   size_t         len;

    249:   XGetWMName(Xiwin->disp,Xiwin->win,&prop);
    250:   prop.value  = (unsigned char*)label;
    251:   PetscStrlen(label,&len);
    252:   prop.nitems = (long) len;
    253:   XSetWMName(Xiwin->disp,Xiwin->win,&prop);
    254:   return(0);
    255: }

    259: PetscErrorCode PetscDrawXiSetToBackground(PetscDraw_X *XiWin)
    260: {
    262:   if (XiWin->gc.cur_pix != XiWin->background) {
    263:     XSetForeground(XiWin->disp,XiWin->gc.set,XiWin->background);
    264:     XiWin->gc.cur_pix = XiWin->background;
    265:   }
    266:   return(0);

    268: }

    272: PetscErrorCode  PetscDrawSetSave_X(PetscDraw draw,const char *filename)
    273: {
    275: #if defined(PETSC_HAVE_POPEN)
    276:   PetscMPIInt    rank;
    277:   char           command[PETSC_MAX_PATH_LEN];
    278:   FILE           *fd;
    279: #endif

    283: #if defined(PETSC_HAVE_POPEN)
    284:   MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);
    285:   if (!rank) {
    286:     PetscSNPrintf(command,PETSC_MAX_PATH_LEN,"rm -fr %s %s.m4v",draw->savefilename,draw->savefilename);
    287:     PetscPOpen(PETSC_COMM_SELF,NULL,command,"r",&fd);
    288:     PetscPClose(PETSC_COMM_SELF,fd,NULL);
    289:     PetscSNPrintf(command,PETSC_MAX_PATH_LEN,"mkdir %s",draw->savefilename);
    290:     PetscPOpen(PETSC_COMM_SELF,NULL,command,"r",&fd);
    291:     PetscPClose(PETSC_COMM_SELF,fd,NULL);
    292:   }
    293: #endif
    294:   return(0);
    295: }

    297: #if defined(PETSC_HAVE_AFTERIMAGE)
    298: #include <afterimage.h>
    301: PetscErrorCode PetscDrawSave_X(PetscDraw draw)
    302: {
    303:   PetscDraw_X             *drawx = (PetscDraw_X*)draw->data;
    304:   XImage                  *image;
    305:   ASImage                 *asimage;
    306:   static struct  ASVisual *asv = 0;
    307:   char                    filename[PETSC_MAX_PATH_LEN];
    308:   PetscErrorCode          ierr;
    309:   PetscMPIInt             rank;

    312:   MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);
    313:   if (rank) return(0);
    314:   if (!draw->savefilename) return(0);
    315:   if (draw->savefilecount == -1) {
    316:     /* The first PetscDrawClear() should happen before any drawing has been done, hence do not save at the first PetscDrawClear() */
    317:     draw->savefilecount++;
    318:     return(0);
    319:   }

    321:   if (!asv) {
    322:     asv = create_asvisual(drawx->disp, 0, 0, 0);if (!asv) SETERRQ(PetscObjectComm((PetscObject)draw),PETSC_ERR_PLIB,"Cannot create AfterImage ASVisual");
    323:   }
    324:   image   = XGetImage(drawx->disp, drawx->drw ? drawx->drw : drawx->win, 0, 0, drawx->w, drawx->h, AllPlanes, ZPixmap);
    325:   if (!image) SETERRQ(PetscObjectComm((PetscObject)draw),PETSC_ERR_PLIB,"Cannot XGetImage()");\
    326:   asimage = picture_ximage2asimage (asv,image,0,0);if (!asimage) SETERRQ(PetscObjectComm((PetscObject)draw),PETSC_ERR_PLIB,"Cannot create AfterImage ASImage");
    327:   PetscSNPrintf(filename,PETSC_MAX_PATH_LEN,"%s/%s_%d.Gif",draw->savefilename,draw->savefilename,draw->savefilecount++);
    328:   ASImage2file(asimage, 0, filename,ASIT_Gif,0);

    330:   XDestroyImage(image);
    331:   return(0);
    332: }
    333: /*
    334:    There are routines wanted by AfterImage for PNG files
    335:  */
    336: void crc32(void) {;}
    337: void inflateReset(void) {;}
    338: void deflateReset(void) {;}
    339: void deflateInit2(void) {;}
    340: void deflateInit2_(void) {;}
    341: void deflate(void) {;}
    342: void deflateEnd(void) {;}

    344: #endif