Dogcows Code - chaz/tint2/blob - src/taskbar/task.c

   1 /**************************************************************************
   2 *
   3 * Tint2 : task
   4 *
   5 * Copyright (C) 2007 Pål Staurland (staura@gmail.com)
   6 * Modified (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr)
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License version 2
  10 * as published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19 **************************************************************************/
  20
  21 #include <X11/Xlib.h>
  22 #include <X11/Xutil.h>
  23 #include <X11/Xatom.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <glib.h>
  28 #include <Imlib2.h>
  29
  30 #include "window.h"
  31 #include "task.h"
  32 #include "server.h"
  33 #include "panel.h"
  34
  35
  36
  37 void add_task (Window win)
  38 {
  39    if (!win) return;
  40    if (window_is_hidden(win)) return;
  41
  42    int monitor;
  43
  44         Task new_tsk;
  45    new_tsk.win = win;
  46    new_tsk.area.panel = &panel1[0];
  47    new_tsk.desktop = window_get_desktop (win);
  48    if (panel_mode == SINGLE_MONITOR) monitor = window_get_monitor (win);
  49    else monitor = 0;
  50
  51         // allocate only one title and one icon
  52         // even with task_on_all_desktop and with task_on_all_panel
  53    new_tsk.title = 0;
  54    new_tsk.icon_data = 0;
  55    get_title(&new_tsk);
  56    get_icon(&new_tsk);
  57
  58    //printf("task %s : desktop %d, monitor %d\n", new_tsk->title, desktop, monitor);
  59    XSelectInput (server.dsp, new_tsk.win, PropertyChangeMask|StructureNotifyMask);
  60
  61         Taskbar *tskbar;
  62    Task *new_tsk2;
  63         int i, j;
  64         for (i=0 ; i < nb_panel ; i++) {
  65                 for (j=0 ; j < panel1[i].nb_desktop ; j++) {
  66                         if (new_tsk.desktop != ALLDESKTOP && new_tsk.desktop != j) continue;
  67                         if (panel_mode == SINGLE_MONITOR && panel1[i].monitor != monitor) continue;
  68
  69                 tskbar = &panel1[i].taskbar[j];
  70                    new_tsk2 = malloc(sizeof(Task));
  71                    memcpy(&new_tsk2->area, &panel1[i].g_task.area, sizeof(Area));
  72                    new_tsk2->area.parent = tskbar;
  73                         new_tsk2->win = new_tsk.win;
  74                         new_tsk2->desktop = new_tsk.desktop;
  75                         new_tsk2->title = new_tsk.title;
  76                         new_tsk2->icon_data = new_tsk.icon_data;
  77                         new_tsk2->icon_width = new_tsk.icon_width;
  78                         new_tsk2->icon_height = new_tsk.icon_height;
  79                 tskbar->area.list = g_slist_append(tskbar->area.list, new_tsk2);
  80                 tskbar->area.resize = 1;
  81                         //printf("add_task panel %d, desktop %d, task %s\n", i, j, new_tsk2->title);
  82                 }
  83         }
  84 }
  85
  86
  87 void remove_task (Task *tsk)
  88 {
  89    if (!tsk) return;
  90
  91    Window win = tsk->win;
  92    int desktop = tsk->desktop;
  93
  94         // free title and icon just for the first task
  95         // even with task_on_all_desktop and with task_on_all_panel
  96         //printf("remove_task %s %d\n", tsk->title, tsk->desktop);
  97         if (tsk->title)
  98                 free (tsk->title);
  99         if (tsk->icon_data)
 100                 free (tsk->icon_data);
 101
 102         int i, j;
 103    Task *tsk2;
 104    Taskbar *tskbar;
 105         for (i=0 ; i < nb_panel ; i++) {
 106                 for (j=0 ; j < panel1[i].nb_desktop ; j++) {
 107                         if (desktop != ALLDESKTOP && desktop != j) continue;
 108
 109                         GSList *l0;
 110                         tskbar = &panel1[i].taskbar[j];
 111                         for (l0 = tskbar->area.list; l0 ; ) {
 112                                 tsk2 = l0->data;
 113                                 l0 = l0->next;
 114                                 if (win == tsk2->win) {
 115                                         tskbar->area.list = g_slist_remove(tskbar->area.list, tsk2);
 116                         tskbar->area.resize = 1;
 117
 118                                         if (tsk2 == task_active)
 119                                                 task_active = 0;
 120                                         if (tsk2 == task_drag)
 121                                                 task_drag = 0;
 122
 123                                         XFreePixmap (server.dsp, tsk2->area.pix.pmap);
 124                                         XFreePixmap (server.dsp, tsk2->area.pix_active.pmap);
 125                                         free(tsk2);
 126                                 }
 127                         }
 128                 }
 129         }
 130
 131 }
 132
 133
 134 void get_title(Task *tsk)
 135 {
 136    Panel *panel = tsk->area.panel;
 137    char *title, *name;
 138
 139    if (!panel->g_task.text) return;
 140
 141    name = server_get_property (tsk->win, server.atom._NET_WM_VISIBLE_NAME, server.atom.UTF8_STRING, 0);
 142    if (!name || !strlen(name)) {
 143       name = server_get_property (tsk->win, server.atom._NET_WM_NAME, server.atom.UTF8_STRING, 0);
 144       if (!name || !strlen(name)) {
 145          name = server_get_property (tsk->win, server.atom.WM_NAME, XA_STRING, 0);
 146          if (!name || !strlen(name)) {
 147             name = malloc(10);
 148             strcpy(name, "Untitled");
 149          }
 150       }
 151    }
 152
 153    // add space before title
 154    title = malloc(strlen(name)+2);
 155    if (panel->g_task.icon) strcpy(title, " ");
 156    else title[0] = 0;
 157    strcat(title, name);
 158    if (name) XFree (name);
 159
 160         tsk->area.redraw = 1;
 161    if (tsk->title)
 162       free(tsk->title);
 163    tsk->title = title;
 164 }
 165
 166
 167 void get_icon (Task *tsk)
 168 {
 169    Panel *panel = tsk->area.panel;
 170    if (!panel->g_task.icon) return;
 171
 172         if (tsk->icon_data) {
 173                 free (tsk->icon_data);
 174                 tsk->icon_data = 0;
 175         }
 176    tsk->area.redraw = 1;
 177
 178    long *data;
 179    int num;
 180    data = server_get_property (tsk->win, server.atom._NET_WM_ICON, XA_CARDINAL, &num);
 181    if (data) {
 182       // get ARGB icon
 183       int w, h;
 184       long *tmp_data;
 185       tmp_data = get_best_icon (data, get_icon_count (data, num), num, &w, &h, panel->g_task.icon_size1);
 186
 187       tsk->icon_width = w;
 188       tsk->icon_height = h;
 189       tsk->icon_data = malloc (w * h * sizeof (long));
 190       memcpy (tsk->icon_data, tmp_data, w * h * sizeof (long));
 191
 192       XFree (data);
 193    }
 194    else {
 195       // get Pixmap icon
 196       XWMHints *hints = XGetWMHints(server.dsp, tsk->win);
 197       if (hints) {
 198          if (hints->flags & IconPixmapHint && hints->icon_pixmap != 0) {
 199                 // get width, height and depth for the pixmap
 200                                 Window root;
 201                                 int  icon_x, icon_y;
 202                                 uint border_width, bpp;
 203                                 uint icon_width, icon_height;
 204
 205                                 XGetGeometry(server.dsp, hints->icon_pixmap, &root, &icon_x, &icon_y, &icon_width, &icon_height, &border_width, &bpp);
 206
 207                       //printf("  get_pixmap\n");
 208                       Imlib_Image  img;
 209                                 imlib_context_set_drawable(hints->icon_pixmap);
 210                                 img = imlib_create_image_from_drawable(hints->icon_mask, 0, 0, icon_width, icon_height, 0);
 211                                 imlib_context_set_image(img);
 212                                 unsigned int *data = imlib_image_get_data();
 213                                 if (!data) {
 214                                         return;
 215                                 }
 216                                 tsk->icon_width = imlib_image_get_width();
 217                                 tsk->icon_height = imlib_image_get_height();
 218                                 tsk->icon_data = malloc (tsk->icon_width * tsk->icon_height * sizeof (long));
 219                                 memcpy (tsk->icon_data, data, tsk->icon_width * tsk->icon_height * sizeof (long));
 220                                 imlib_free_image();
 221                         }
 222          XFree(hints);
 223                 }
 224    }
 225 }
 226
 227
 228 void draw_task_icon (Task *tsk, int text_width, int active)
 229 {
 230    if (tsk->icon_data == 0) return;
 231
 232    Pixmap *pmap = (active == 0) ? (&tsk->area.pix.pmap) : (&tsk->area.pix_active.pmap);
 233
 234    /* Find pos */
 235    int pos_x;
 236    Panel *panel = (Panel*)tsk->area.panel;
 237    if (panel->g_task.centered) {
 238       if (panel->g_task.text)
 239          pos_x = (tsk->area.width - text_width - panel->g_task.icon_size1) / 2;
 240       else
 241          pos_x = (tsk->area.width - panel->g_task.icon_size1) / 2;
 242    }
 243    else pos_x = panel->g_task.area.paddingxlr + panel->g_task.area.pix.border.width;
 244
 245    /* Render */
 246    Imlib_Image icon;
 247    Imlib_Color_Modifier cmod;
 248    DATA8 red[256], green[256], blue[256], alpha[256];
 249
 250    // TODO: cpu improvement : compute only when icon changed
 251    DATA32 *data;
 252    /* do we have 64bit? => long = 8bit */
 253    if (sizeof(long) != 4) {
 254       int length = tsk->icon_width * tsk->icon_height;
 255       data = malloc(sizeof(DATA32) * length);
 256       int i;
 257       for (i = 0; i < length; ++i)
 258          data[i] = tsk->icon_data[i];
 259    }
 260    else data = (DATA32 *) tsk->icon_data;
 261
 262    icon = imlib_create_image_using_data (tsk->icon_width, tsk->icon_height, data);
 263    imlib_context_set_image (icon);
 264    imlib_context_set_drawable (*pmap);
 265
 266    cmod = imlib_create_color_modifier ();
 267    imlib_context_set_color_modifier (cmod);
 268    imlib_image_set_has_alpha (1);
 269    imlib_get_color_modifier_tables (red, green, blue, alpha);
 270
 271    int i, opacity;
 272    opacity = (active == 0) ? (255*panel->g_task.font.alpha) : (255*panel->g_task.font_active.alpha);
 273    for (i = 127; i < 256; i++) alpha[i] = opacity;
 274
 275    imlib_set_color_modifier_tables (red, green, blue, alpha);
 276
 277    //imlib_render_image_on_drawable (pos_x, pos_y);
 278    imlib_render_image_on_drawable_at_size (pos_x, panel->g_task.icon_posy, panel->g_task.icon_size1, panel->g_task.icon_size1);
 279
 280    imlib_free_color_modifier ();
 281    imlib_free_image ();
 282    if (sizeof(long) != 4) free(data);
 283 }
 284
 285
 286 void draw_foreground_task (void *obj, cairo_t *c, int active)
 287 {
 288    Task *tsk = obj;
 289    PangoLayout *layout;
 290    config_color *config_text;
 291    int width, height;
 292    Panel *panel = (Panel*)tsk->area.panel;
 293
 294    if (panel->g_task.text) {
 295                 /* Layout */
 296                 layout = pango_cairo_create_layout (c);
 297                 pango_layout_set_font_description (layout, panel->g_task.font_desc);
 298                 pango_layout_set_text (layout, tsk->title, -1);
 299
 300                 /* Drawing width and Cut text */
 301                 pango_layout_set_width (layout, ((Taskbar*)tsk->area.parent)->text_width * PANGO_SCALE);
 302                 pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
 303
 304                 /* Center text */
 305                 if (panel->g_task.centered) pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
 306                 else pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
 307
 308                 pango_layout_get_pixel_size (layout, &width, &height);
 309
 310                 if (active) config_text = &panel->g_task.font_active;
 311                 else config_text = &panel->g_task.font;
 312
 313                 cairo_set_source_rgba (c, config_text->color[0], config_text->color[1], config_text->color[2], config_text->alpha);
 314
 315                 pango_cairo_update_layout (c, layout);
 316                 cairo_move_to (c, panel->g_task.text_posx, panel->g_task.text_posy);
 317                 pango_cairo_show_layout (c, layout);
 318
 319                 if (panel->g_task.font_shadow) {
 320                         cairo_set_source_rgba (c, 0.0, 0.0, 0.0, 0.5);
 321                         pango_cairo_update_layout (c, layout);
 322                         cairo_move_to (c, panel->g_task.text_posx + 1, panel->g_task.text_posy + 1);
 323                         pango_cairo_show_layout (c, layout);
 324                 }
 325                 g_object_unref (layout);
 326    }
 327
 328    if (panel->g_task.icon) {
 329       // icon use same opacity as text
 330       draw_task_icon (tsk, width, active);
 331    }
 332 }
 333