src/balloon.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1998-2003 Alfredo K. Kojima
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License along
  17  *  with this program; if not, write to the Free Software Foundation, Inc.,
  18  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include "wconfig.h"
  22
  23 #ifdef BALLOON_TEXT
  24
  25 #include <stdio.h>
  26 #include <X11/Xlib.h>
  27 #include <X11/Xutil.h>
  28 #ifdef SHAPED_BALLOON
  29 #include <X11/extensions/shape.h>
  30 #endif
  31
  32 #include <stdlib.h>
  33 #include <string.h>
  34
  35 #include <wraster.h>
  36
  37 #include "WindowMaker.h"
  38 #include "screen.h"
  39 #include "texture.h"
  40 #include "framewin.h"
  41 #include "icon.h"
  42 #include "appicon.h"
  43 #include "workspace.h"
  44 #include "balloon.h"
  45
  46
  47 typedef struct _WBalloon {
  48         Window window;
  49
  50 #ifdef SHAPED_BALLOON
  51         GC monoGC;
  52 #endif
  53         int prevType;
  54
  55         Window objectWindow;
  56         char *text;
  57         int h;
  58
  59         WMHandlerID timer;
  60
  61         Pixmap contents;
  62
  63         char mapped;
  64         char ignoreTimer;
  65 } WBalloon;
  66
  67 #define TOP     0
  68 #define BOTTOM  1
  69 #define LEFT    0
  70 #define RIGHT   2
  71
  72 #define TLEFT   (TOP|LEFT)
  73 #define TRIGHT  (TOP|RIGHT)
  74 #define BLEFT   (BOTTOM|LEFT)
  75 #define BRIGHT  (BOTTOM|RIGHT)
  76
  77 static int countLines(const char *text)
  78 {
  79         const char *p = text;
  80         int h = 1;
  81
  82         while (*p) {
  83                 if (*p == '\n' && p[1] != 0)
  84                         h++;
  85                 p++;
  86         }
  87         return h;
  88 }
  89
  90 static int getMaxStringWidth(WMFont * font, const char *text)
  91 {
  92         const char *p = text;
  93         const char *pb = p;
  94         int pos = 0;
  95         int w = 0, wt;
  96
  97         while (*p) {
  98                 if (*p == '\n') {
  99                         wt = WMWidthOfString(font, pb, pos);
 100                         if (wt > w)
 101                                 w = wt;
 102                         pos = 0;
 103                         pb = p + 1;
 104                 } else {
 105                         pos++;
 106                 }
 107                 p++;
 108         }
 109         if (pos > 0) {
 110                 wt = WMWidthOfString(font, pb, pos);
 111                 if (wt > w)
 112                         w = wt;
 113         }
 114         return w;
 115 }
 116
 117 static void
 118 drawMultiLineString(WMScreen * scr, Pixmap pixmap, WMColor * color,
 119                     WMFont *font, int x, int y, const char *text, int len)
 120 {
 121         const char *p = text;
 122         const char *pb = p;
 123         int l = 0, pos = 0;
 124         int height = WMFontHeight(font);
 125
 126         while (*p && p - text < len) {
 127                 if (*p == '\n') {
 128                         WMDrawString(scr, pixmap, color, font, x, y + l * height, pb, pos);
 129                         l++;
 130                         pos = 0;
 131                         pb = p + 1;
 132                 } else {
 133                         pos++;
 134                 }
 135                 p++;
 136         }
 137         if (pos > 0) {
 138                 WMDrawString(scr, pixmap, color, font, x, y + l * height, pb, pos);
 139         }
 140 }
 141
 142 #ifdef SHAPED_BALLOON
 143
 144 #define         SPACE   12
 145
 146 static void drawBalloon(WScreen * scr, Pixmap bitmap, Pixmap pix, int x, int y, int w, int h, int side)
 147 {
 148         GC bgc = scr->balloon->monoGC;
 149         GC gc = scr->draw_gc;
 150         int rad = h * 3 / 10;
 151         XPoint pt[3], ipt[3];
 152         int w1;
 153
 154         /* outline */
 155         XSetForeground(dpy, bgc, 1);
 156
 157         XFillArc(dpy, bitmap, bgc, x, y, rad, rad, 90 * 64, 90 * 64);
 158         XFillArc(dpy, bitmap, bgc, x, y + h - 1 - rad, rad, rad, 180 * 64, 90 * 64);
 159
 160         XFillArc(dpy, bitmap, bgc, x + w - 1 - rad, y, rad, rad, 0 * 64, 90 * 64);
 161         XFillArc(dpy, bitmap, bgc, x + w - 1 - rad, y + h - 1 - rad, rad, rad, 270 * 64, 90 * 64);
 162
 163         XFillRectangle(dpy, bitmap, bgc, x, y + rad / 2, w, h - rad);
 164         XFillRectangle(dpy, bitmap, bgc, x + rad / 2, y, w - rad, h);
 165
 166         /* interior */
 167         XSetForeground(dpy, gc, scr->white_pixel);
 168
 169         XFillArc(dpy, pix, gc, x + 1, y + 1, rad, rad, 90 * 64, 90 * 64);
 170         XFillArc(dpy, pix, gc, x + 1, y + h - 2 - rad, rad, rad, 180 * 64, 90 * 64);
 171
 172         XFillArc(dpy, pix, gc, x + w - 2 - rad, y + 1, rad, rad, 0 * 64, 90 * 64);
 173         XFillArc(dpy, pix, gc, x + w - 2 - rad, y + h - 2 - rad, rad, rad, 270 * 64, 90 * 64);
 174
 175         XFillRectangle(dpy, pix, gc, x + 1, y + 1 + rad / 2, w - 2, h - 2 - rad);
 176         XFillRectangle(dpy, pix, gc, x + 1 + rad / 2, y + 1, w - 2 - rad, h - 2);
 177
 178         if (side & BOTTOM) {
 179                 pt[0].y = y + h - 1;
 180                 pt[1].y = y + h - 1 + SPACE;
 181                 pt[2].y = y + h - 1;
 182                 ipt[0].y = pt[0].y - 1;
 183                 ipt[1].y = pt[1].y - 1;
 184                 ipt[2].y = pt[2].y - 1;
 185         } else {
 186                 pt[0].y = y;
 187                 pt[1].y = y - SPACE;
 188                 pt[2].y = y;
 189                 ipt[0].y = pt[0].y + 1;
 190                 ipt[1].y = pt[1].y + 1;
 191                 ipt[2].y = pt[2].y + 1;
 192         }
 193
 194         /*w1 = WMAX(h, 24); */
 195         w1 = WMAX(h, 21);
 196
 197         if (side & RIGHT) {
 198                 pt[0].x = x + w - w1 + 2 * w1 / 16;
 199                 pt[1].x = x + w - w1 + 11 * w1 / 16;
 200                 pt[2].x = x + w - w1 + 7 * w1 / 16;
 201                 ipt[0].x = x + 1 + w - w1 + 2 * (w1 - 1) / 16;
 202                 ipt[1].x = x + 1 + w - w1 + 11 * (w1 - 1) / 16;
 203                 ipt[2].x = x + 1 + w - w1 + 7 * (w1 - 1) / 16;
 204                 /*ipt[0].x = pt[0].x+1;
 205                    ipt[1].x = pt[1].x;
 206                    ipt[2].x = pt[2].x; */
 207         } else {
 208                 pt[0].x = x + w1 - 2 * w1 / 16;
 209                 pt[1].x = x + w1 - 11 * w1 / 16;
 210                 pt[2].x = x + w1 - 7 * w1 / 16;
 211                 ipt[0].x = x - 1 + w1 - 2 * (w1 - 1) / 16;
 212                 ipt[1].x = x - 1 + w1 - 11 * (w1 - 1) / 16;
 213                 ipt[2].x = x - 1 + w1 - 7 * (w1 - 1) / 16;
 214                 /*ipt[0].x = pt[0].x-1;
 215                    ipt[1].x = pt[1].x;
 216                    ipt[2].x = pt[2].x; */
 217         }
 218
 219         XFillPolygon(dpy, bitmap, bgc, pt, 3, Convex, CoordModeOrigin);
 220         XFillPolygon(dpy, pix, gc, ipt, 3, Convex, CoordModeOrigin);
 221
 222         /* fix outline */
 223         XSetForeground(dpy, gc, scr->black_pixel);
 224
 225         XDrawLines(dpy, pix, gc, pt, 3, CoordModeOrigin);
 226         if (side & RIGHT) {
 227                 pt[0].x++;
 228                 pt[2].x--;
 229         } else {
 230                 pt[0].x--;
 231                 pt[2].x++;
 232         }
 233         XDrawLines(dpy, pix, gc, pt, 3, CoordModeOrigin);
 234 }
 235
 236 static Pixmap makePixmap(WScreen * scr, int width, int height, int side, Pixmap * mask)
 237 {
 238         WBalloon *bal = scr->balloon;
 239         Pixmap bitmap;
 240         Pixmap pixmap;
 241         int x, y;
 242
 243         bitmap = XCreatePixmap(dpy, scr->root_win, width + SPACE, height + SPACE, 1);
 244
 245         if (!bal->monoGC) {
 246                 bal->monoGC = XCreateGC(dpy, bitmap, 0, NULL);
 247         }
 248         XSetForeground(dpy, bal->monoGC, 0);
 249         XFillRectangle(dpy, bitmap, bal->monoGC, 0, 0, width + SPACE, height + SPACE);
 250
 251         pixmap = XCreatePixmap(dpy, scr->root_win, width + SPACE, height + SPACE, scr->w_depth);
 252         XSetForeground(dpy, scr->draw_gc, scr->black_pixel);
 253         XFillRectangle(dpy, pixmap, scr->draw_gc, 0, 0, width + SPACE, height + SPACE);
 254
 255         if (side & BOTTOM) {
 256                 y = 0;
 257         } else {
 258                 y = SPACE;
 259         }
 260         x = 0;
 261
 262         drawBalloon(scr, bitmap, pixmap, x, y, width, height, side);
 263
 264         *mask = bitmap;
 265
 266         return pixmap;
 267 }
 268
 269 static void showText(WScreen *scr, int x, int y, int h, int w, const char *text)
 270 {
 271         int width;
 272         int height;
 273         Pixmap pixmap;
 274         Pixmap mask;
 275         WMFont *font = scr->info_text_font;
 276         int side = 0;
 277         int ty;
 278         int bx, by;
 279
 280         if (scr->balloon->contents)
 281                 XFreePixmap(dpy, scr->balloon->contents);
 282
 283         width = getMaxStringWidth(font, text) + 16;
 284         height = countLines(text) * WMFontHeight(font) + 4;
 285
 286         if (height < 16)
 287                 height = 16;
 288         if (width < height)
 289                 width = height;
 290
 291         if (x + width > scr->scr_width) {
 292                 side = RIGHT;
 293                 bx = x - width + w / 2;
 294                 if (bx < 0)
 295                         bx = 0;
 296         } else {
 297                 side = LEFT;
 298                 bx = x + w / 2;
 299         }
 300         if (bx + width > scr->scr_width)
 301                 bx = scr->scr_width - width;
 302
 303         if (y - (height + SPACE) < 0) {
 304                 side |= TOP;
 305                 by = y + h - 1;
 306                 ty = SPACE;
 307         } else {
 308                 side |= BOTTOM;
 309                 by = y - (height + SPACE);
 310                 ty = 0;
 311         }
 312         pixmap = makePixmap(scr, width, height, side, &mask);
 313
 314         drawMultiLineString(scr->wmscreen, pixmap, scr->black, font, 8, ty + 2, text, strlen(text));
 315
 316         XSetWindowBackgroundPixmap(dpy, scr->balloon->window, pixmap);
 317         scr->balloon->contents = pixmap;
 318
 319         XResizeWindow(dpy, scr->balloon->window, width, height + SPACE);
 320         XShapeCombineMask(dpy, scr->balloon->window, ShapeBounding, 0, 0, mask, ShapeSet);
 321         XFreePixmap(dpy, mask);
 322         XMoveWindow(dpy, scr->balloon->window, bx, by);
 323         XMapRaised(dpy, scr->balloon->window);
 324
 325         scr->balloon->mapped = 1;
 326 }
 327 #else                           /* !SHAPED_BALLOON */
 328
 329 static void showText(WScreen *scr, int x, int y, int h, int w, const char *text)
 330 {
 331         int width;
 332         int height;
 333         Pixmap pixmap;
 334         WMFont *font = scr->info_text_font;
 335
 336         if (scr->balloon->contents)
 337                 XFreePixmap(dpy, scr->balloon->contents);
 338
 339         width = getMaxStringWidth(font, text) + 8;
 340         /*width = WMWidthOfString(font, text, strlen(text))+8; */
 341         height = countLines(text) * WMFontHeight(font) + 4;
 342
 343         if (x < 0)
 344                 x = 0;
 345         else if (x + width > scr->scr_width - 1)
 346                 x = scr->scr_width - width;
 347
 348         if (y - height - 2 < 0) {
 349                 y += h;
 350                 if (y < 0)
 351                         y = 0;
 352         } else {
 353                 y -= height + 2;
 354         }
 355
 356         if (scr->window_title_texture[0])
 357                 XSetForeground(dpy, scr->draw_gc, scr->window_title_texture[0]->any.color.pixel);
 358         else
 359                 XSetForeground(dpy, scr->draw_gc, scr->light_pixel);
 360
 361         pixmap = XCreatePixmap(dpy, scr->root_win, width, height, scr->w_depth);
 362         XFillRectangle(dpy, pixmap, scr->draw_gc, 0, 0, width, height);
 363
 364         drawMultiLineString(scr->wmscreen, pixmap, scr->window_title_color[0], font, 4, 2, text, strlen(text));
 365
 366         XResizeWindow(dpy, scr->balloon->window, width, height);
 367         XMoveWindow(dpy, scr->balloon->window, x, y);
 368
 369         XSetWindowBackgroundPixmap(dpy, scr->balloon->window, pixmap);
 370         XClearWindow(dpy, scr->balloon->window);
 371         XMapRaised(dpy, scr->balloon->window);
 372
 373         scr->balloon->contents = pixmap;
 374
 375         scr->balloon->mapped = 1;
 376 }
 377 #endif                          /* !SHAPED_BALLOON */
 378
 379 static void showBalloon(WScreen * scr)
 380 {
 381         int x, y;
 382         Window foow;
 383         unsigned foo, w;
 384
 385         if (scr->balloon) {
 386                 scr->balloon->timer = NULL;
 387                 scr->balloon->ignoreTimer = 1;
 388         }
 389
 390         if (!XGetGeometry(dpy, scr->balloon->objectWindow, &foow, &x, &y, &w, &foo, &foo, &foo)) {
 391                 scr->balloon->prevType = 0;
 392                 return;
 393         }
 394         showText(scr, x, y, scr->balloon->h, w, scr->balloon->text);
 395 }
 396
 397 static void frameBalloon(WObjDescriptor * object)
 398 {
 399         WFrameWindow *fwin = (WFrameWindow *) object->parent;
 400         WScreen *scr = fwin->core->screen_ptr;
 401
 402         if (fwin->titlebar != object->self || !fwin->flags.is_client_window_frame) {
 403                 wBalloonHide(scr);
 404                 return;
 405         }
 406         if (fwin->title && fwin->flags.incomplete_title) {
 407                 scr->balloon->h = (fwin->titlebar ? fwin->titlebar->height : 0);
 408                 scr->balloon->text = wstrdup(fwin->title);
 409                 scr->balloon->objectWindow = fwin->core->window;
 410                 scr->balloon->timer = WMAddTimerHandler(BALLOON_DELAY, (WMCallback *) showBalloon, scr);
 411         }
 412 }
 413
 414 static void miniwindowBalloon(WObjDescriptor * object)
 415 {
 416         WIcon *icon = (WIcon *) object->parent;
 417         WScreen *scr = icon->core->screen_ptr;
 418
 419         if (!icon->icon_name) {
 420                 wBalloonHide(scr);
 421                 return;
 422         }
 423         scr->balloon->h = icon->core->height;
 424         scr->balloon->text = wstrdup(icon->icon_name);
 425         scr->balloon->objectWindow = icon->core->window;
 426         if ((scr->balloon->prevType == object->parent_type || scr->balloon->prevType == WCLASS_APPICON)
 427             && scr->balloon->ignoreTimer) {
 428                 XUnmapWindow(dpy, scr->balloon->window);
 429                 showBalloon(scr);
 430         } else {
 431                 scr->balloon->timer = WMAddTimerHandler(BALLOON_DELAY, (WMCallback *) showBalloon, scr);
 432         }
 433 }
 434
 435 static void appiconBalloon(WObjDescriptor *object)
 436 {
 437         WAppIcon *aicon = (WAppIcon *) object->parent;
 438         WScreen *scr = aicon->icon->core->screen_ptr;
 439         char *tmp;
 440
 441         /* Show balloon if it is the Clip and the workspace name is > 5 chars */
 442         if (object->parent == w_global.clip.icon) {
 443                 if (strlen(w_global.workspace.array[w_global.workspace.current]->name) > 5) {
 444                         scr->balloon->text = wstrdup(w_global.workspace.array[w_global.workspace.current]->name);
 445                 } else {
 446                         wBalloonHide(scr);
 447                         return;
 448                 }
 449         } else if (aicon->command && aicon->wm_class) {
 450                 int len;
 451                 /* Check to see if it is a GNUstep app */
 452                 if (strcmp(aicon->wm_class, "GNUstep") == 0)
 453                         len = strlen(aicon->command) + strlen(aicon->wm_instance) + 8;
 454                 else
 455                         len = strlen(aicon->command) + strlen(aicon->wm_class) + 8;
 456                 tmp = wmalloc(len);
 457                 /* Check to see if it is a GNUstep App */
 458                 if (strcmp(aicon->wm_class, "GNUstep") == 0)
 459                         snprintf(tmp, len, "%s\n(%s)", aicon->wm_instance, aicon->command);
 460                 else
 461                         snprintf(tmp, len, "%s\n(%s)", aicon->wm_class, aicon->command);
 462                 scr->balloon->text = tmp;
 463         } else if (aicon->command) {
 464                 scr->balloon->text = wstrdup(aicon->command);
 465         } else if (aicon->wm_class) {
 466                 /* Check to see if it is a GNUstep App */
 467                 if (strcmp(aicon->wm_class, "GNUstep") == 0)
 468                         scr->balloon->text = wstrdup(aicon->wm_instance);
 469                 else
 470                         scr->balloon->text = wstrdup(aicon->wm_class);
 471         } else {
 472                 wBalloonHide(scr);
 473                 return;
 474         }
 475         scr->balloon->h = aicon->icon->core->height - 2;
 476
 477         scr->balloon->objectWindow = aicon->icon->core->window;
 478         if ((scr->balloon->prevType == object->parent_type || scr->balloon->prevType == WCLASS_MINIWINDOW)
 479             && scr->balloon->ignoreTimer) {
 480                 XUnmapWindow(dpy, scr->balloon->window);
 481                 showBalloon(scr);
 482         } else {
 483                 scr->balloon->timer = WMAddTimerHandler(BALLOON_DELAY, (WMCallback *) showBalloon, scr);
 484         }
 485 }
 486
 487 void wBalloonInitialize(WScreen * scr)
 488 {
 489         WBalloon *bal;
 490         XSetWindowAttributes attribs;
 491         unsigned long vmask;
 492
 493         bal = wmalloc(sizeof(WBalloon));
 494
 495         scr->balloon = bal;
 496
 497         vmask = CWSaveUnder | CWOverrideRedirect | CWColormap | CWBackPixel | CWBorderPixel;
 498         attribs.save_under = True;
 499         attribs.override_redirect = True;
 500         attribs.colormap = scr->w_colormap;
 501         attribs.background_pixel = scr->icon_back_texture->normal.pixel;
 502         attribs.border_pixel = 0;       /* do not care */
 503
 504         bal->window = XCreateWindow(dpy, scr->root_win, 1, 1, 10, 10, 1,
 505                                     scr->w_depth, CopyFromParent, scr->w_visual, vmask, &attribs);
 506 #if 0
 507         /* select EnterNotify to so that the balloon will be unmapped
 508          * when the pointer is moved over it */
 509         XSelectInput(dpy, bal->window, EnterWindowMask);
 510 #endif
 511 }
 512
 513 void wBalloonEnteredObject(WScreen * scr, WObjDescriptor * object)
 514 {
 515         WBalloon *balloon = scr->balloon;
 516
 517         if (balloon->timer) {
 518                 WMDeleteTimerHandler(balloon->timer);
 519                 balloon->timer = NULL;
 520                 balloon->ignoreTimer = 0;
 521         }
 522
 523         if (scr->balloon->text)
 524                 wfree(scr->balloon->text);
 525         scr->balloon->text = NULL;
 526
 527         if (!object) {
 528                 wBalloonHide(scr);
 529                 balloon->ignoreTimer = 0;
 530                 return;
 531         }
 532
 533         switch (object->parent_type) {
 534         case WCLASS_FRAME:
 535                 if (wPreferences.window_balloon)
 536                         frameBalloon(object);
 537                 break;
 538         case WCLASS_DOCK_ICON:
 539                 if (wPreferences.appicon_balloon)
 540                         appiconBalloon(object);
 541                 break;
 542         case WCLASS_MINIWINDOW:
 543                 if (wPreferences.miniwin_balloon)
 544                         miniwindowBalloon(object);
 545                 break;
 546         case WCLASS_APPICON:
 547                 if (wPreferences.appicon_balloon)
 548                         appiconBalloon(object);
 549                 break;
 550         default:
 551                 wBalloonHide(scr);
 552                 break;
 553         }
 554         scr->balloon->prevType = object->parent_type;
 555 }
 556
 557 void wBalloonHide(WScreen * scr)
 558 {
 559         if (scr) {
 560                 if (scr->balloon->mapped) {
 561                         XUnmapWindow(dpy, scr->balloon->window);
 562                         scr->balloon->mapped = 0;
 563                 } else if (scr->balloon->timer) {
 564                         WMDeleteTimerHandler(scr->balloon->timer);
 565                         scr->balloon->timer = NULL;
 566                 }
 567                 scr->balloon->prevType = 0;
 568         }
 569 }
 570
 571 #endif