src/programs/view/popup.cpp

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  37 #include "gmxpre.h"
  38
  39 #include "popup.h"
  40
  41 #include <math.h>
  42 #include <string.h>
  43
  44 #include <algorithm>
  45
  46 #include "gromacs/legacyheaders/macros.h"
  47 #include "gromacs/utility/smalloc.h"
  48
  49 #include "x11.h"
  50 #include "xutil.h"
  51
  52 bool ChildCallBack(t_x11 *x11, XEvent *event, Window w, void *data)
  53 {
  54     t_child   *child;
  55     t_mentry  *m;
  56     t_windata *wd;
  57     XEvent     letter;
  58
  59     child = (t_child *)data;
  60     m     = child->m;
  61     wd    = &(child->wd);
  62     switch (event->type)
  63     {
  64         case Expose:
  65             XSetForeground(x11->disp, x11->gc, x11->fg);
  66             TextInRect(x11, w, m->str, 16, 0, wd->width-16-2, wd->height-2,
  67                        eXLeft, eYCenter);
  68             if (m->bChecked)
  69             {
  70                 int y = x11->font->ascent;
  71                 XDrawLine(x11->disp, w, x11->gc, 2, (y*2)/3, 6, y);
  72                 XDrawLine(x11->disp, w, x11->gc, 3, (y*2)/3, 7, y);
  73                 XDrawLine(x11->disp, w, x11->gc, 7, y, 12, 2);
  74             }
  75             break;
  76         case EnterNotify:
  77             LightBorder(x11->disp, w, x11->fg);
  78             break;
  79         case LeaveNotify:
  80             LightBorder(x11->disp, w, x11->bg);
  81             break;
  82         case ButtonRelease:
  83             letter.type                 = ClientMessage;
  84             letter.xclient.display      = x11->disp;
  85             letter.xclient.window       = m->send_to ? m->send_to : child->Parent;
  86             letter.xclient.message_type = 0;
  87             letter.xclient.format       = 32;
  88             letter.xclient.data.l[0]    = m->nreturn;
  89             XSendEvent(x11->disp, letter.xclient.window, True, 0, &letter);
  90             break;
  91         default:
  92             break;
  93     }
  94     return false;
  95 }
  96
  97 bool MenuCallBack(t_x11 *x11, XEvent *event, Window /*w*/, void *data)
  98 {
  99     t_menu *m;
 100
 101     m = (t_menu *)data;
 102     switch (event->type)
 103     {
 104         case Expose:
 105             /* Nothing to be done */
 106             if (m->bGrabbed)
 107             {
 108                 m->bGrabbed =
 109                     GrabOK(stderr, XGrabPointer(x11->disp, m->wd.self, True,
 110                                                 ButtonReleaseMask, GrabModeAsync,
 111                                                 GrabModeAsync, m->wd.self, None, CurrentTime));
 112             }
 113             break;
 114         case ButtonRelease:
 115             hide_menu(x11, m);
 116             break;
 117         case ClientMessage:
 118             event->xclient.window = m->Parent;
 119             XSendEvent(x11->disp, m->Parent, True, 0, event);
 120             break;
 121         default:
 122             break;
 123     }
 124     return false;
 125 }
 126
 127 t_menu *init_menu(t_x11 *x11, Window Parent, unsigned long fg, unsigned long bg,
 128                   int nent, t_mentry ent[], int ncol)
 129 {
 130     int        i, mlen, mht, area, ht;
 131     int        j, k, l;
 132     int        frows, fcol;
 133     t_menu    *m;
 134     t_child   *kid;
 135     t_windata *w;
 136
 137     snew(m, 1);
 138     m->nitem  = nent;
 139     m->Parent = Parent;
 140
 141     /* Calculate dimensions of the menu */
 142     mlen = 0;
 143     for (i = 0; (i < nent); i++)
 144     {
 145         mlen = std::max(mlen, XTextWidth(x11->font, ent[i].str, strlen(ent[i].str)));
 146     }
 147     mht = XTextHeight(x11->font);
 148     /* Now we have the biggest single box, add a border of 2 pixels */
 149     mlen += 20; /* We need extra space at the left for checkmarks */
 150     mht  += 4;
 151     /* Calculate the area of the menu */
 152     area = mlen*mht;
 153     ht   = sqrt(area);
 154     /* No the number of rows per column, only beyond 8 rows */
 155     if (ncol == 0)
 156     {
 157         if (nent > 8)
 158         {
 159             frows = (1+ht/mht);
 160         }
 161         else
 162         {
 163             frows = nent;
 164         }
 165         fcol = nent/frows;
 166     }
 167     else
 168     {
 169         fcol  = ncol;
 170         frows = nent/ncol;
 171         if (nent % ncol)
 172         {
 173             frows++;
 174         }
 175     }
 176     InitWin(&(m->wd), 10, 10, fcol*mlen, frows*mht, 1, "Menu");
 177     snew(m->item, nent);
 178     m->wd.self = XCreateSimpleWindow(x11->disp, Parent,
 179                                      m->wd.x, m->wd.y,
 180                                      m->wd.width, m->wd.height,
 181                                      m->wd.bwidth, fg, bg);
 182     x11->RegisterCallback(x11, m->wd.self, Parent, MenuCallBack, m);
 183     x11->SetInputMask(x11, m->wd.self, ExposureMask |
 184                       OwnerGrabButtonMask | ButtonReleaseMask);
 185
 186     for (j = l = 0; (j < fcol); j++)
 187     {
 188         for (k = 0; (k < frows) && (l < nent); k++, l++)
 189         {
 190             kid         = &(m->item[l]);
 191             kid->m      = &(ent[l]);
 192             kid->Parent = Parent;
 193             w           = &(kid->wd);
 194             InitWin(w, j*mlen, k*mht, mlen-2, mht-2, 1, NULL);
 195             w->self = XCreateSimpleWindow(x11->disp, m->wd.self,
 196                                           w->x, w->y, w->width, w->height,
 197                                           w->bwidth, bg, bg);
 198             x11->RegisterCallback(x11, w->self, m->wd.self,
 199                                   ChildCallBack, kid);
 200             x11->SetInputMask(x11, w->self,
 201                               ButtonPressMask | ButtonReleaseMask |
 202                               OwnerGrabButtonMask | ExposureMask |
 203                               EnterWindowMask | LeaveWindowMask);
 204         }
 205     }
 206
 207     return m;
 208 }
 209
 210 void show_menu(t_x11 *x11, t_menu *m, int x, int y, bool bGrab)
 211 {
 212     XMoveWindow(x11->disp, m->wd.self, x, y);
 213     m->bGrabbed = bGrab;
 214     XMapWindow(x11->disp, m->wd.self);
 215     XMapSubwindows(x11->disp, m->wd.self);
 216 }
 217
 218 void hide_menu(t_x11 *x11, t_menu *m)
 219 {
 220     if (m->bGrabbed)
 221     {
 222         XUngrabPointer(x11->disp, CurrentTime);
 223     }
 224     XUnmapWindow(x11->disp, m->wd.self);
 225 }
 226
 227 void check_menu_item(t_menu *m, int nreturn, bool bStatus)
 228 {
 229     int i;
 230
 231     for (i = 0; (i < m->nitem); i++)
 232     {
 233         if (m->item[i].m->nreturn == nreturn)
 234         {
 235             m->item[i].m->bChecked = bStatus;
 236         }
 237     }
 238 }
 239
 240 void done_menu(t_x11 *x11, t_menu *m)
 241 {
 242     int i;
 243
 244     for (i = 0; (i < m->nitem); i++)
 245     {
 246         x11->UnRegisterCallback(x11, m->item[i].wd.self);
 247     }
 248     sfree(m->item);
 249     x11->UnRegisterCallback(x11, m->wd.self);
 250     sfree(m);
 251 }
 252
 253 int menu_width(t_menu *m)
 254 {
 255     return m->wd.width;
 256 }
 257
 258 int menu_height(t_menu *m)
 259 {
 260     return m->wd.height;
 261 }