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 Task *add_task (Window win)
  38 {
  39    if (!win) return 0;
  40    if (window_is_hidden(win)) return 0;
  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 (nb_panel > 1) 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=0;
  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 (nb_panel > 1 && 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         return new_tsk2;
  85 }
  86
  87
  88 void remove_task (Task *tsk)
  89 {
  90    if (!tsk) return;
  91
  92    Window win = tsk->win;
  93    int desktop = tsk->desktop;
  94
  95         // free title and icon just for the first task
  96         // even with task_on_all_desktop and with task_on_all_panel
  97         //printf("remove_task %s %d\n", tsk->title, tsk->desktop);
  98         if (tsk->title)
  99                 free (tsk->title);
 100         if (tsk->icon_data)
 101                 free (tsk->icon_data);
 102
 103         int i, j;
 104    Task *tsk2;
 105    Taskbar *tskbar;
 106         for (i=0 ; i < nb_panel ; i++) {
 107                 for (j=0 ; j < panel1[i].nb_desktop ; j++) {
 108                         if (desktop != ALLDESKTOP && desktop != j) continue;
 109
 110                         GSList *l0;
 111                         tskbar = &panel1[i].taskbar[j];
 112                         for (l0 = tskbar->area.list; l0 ; ) {
 113                                 tsk2 = l0->data;
 114                                 l0 = l0->next;
 115                                 if (win == tsk2->win) {
 116                                         tskbar->area.list = g_slist_remove(tskbar->area.list, tsk2);
 117                         tskbar->area.resize = 1;
 118
 119                                         if (tsk2 == task_active)
 120                                                 task_active = 0;
 121                                         if (tsk2 == task_drag)
 122                                                 task_drag = 0;
 123
 124                                         XFreePixmap (server.dsp, tsk2->area.pix.pmap);
 125                                         XFreePixmap (server.dsp, tsk2->area.pix_active.pmap);
 126                                         free(tsk2);
 127                                 }
 128                         }
 129                 }
 130         }
 131
 132 }
 133
 134
 135 void get_title(Task *tsk)
 136 {
 137    Panel *panel = tsk->area.panel;
 138    char *title, *name;
 139
 140    if (!panel->g_task.text) return;
 141
 142    name = server_get_property (tsk->win, server.atom._NET_WM_VISIBLE_NAME, server.atom.UTF8_STRING, 0);
 143    if (!name || !strlen(name)) {
 144       name = server_get_property (tsk->win, server.atom._NET_WM_NAME, server.atom.UTF8_STRING, 0);
 145       if (!name || !strlen(name)) {
 146          name = server_get_property (tsk->win, server.atom.WM_NAME, XA_STRING, 0);
 147          if (!name || !strlen(name)) {
 148             name = malloc(10);
 149             strcpy(name, "Untitled");
 150          }
 151       }
 152    }
 153
 154    // add space before title
 155    title = malloc(strlen(name)+2);
 156    if (panel->g_task.icon) strcpy(title, " ");
 157    else title[0] = 0;
 158    strcat(title, name);
 159    if (name) XFree (name);
 160
 161         tsk->area.redraw = 1;
 162    if (tsk->title)
 163       free(tsk->title);
 164    tsk->title = title;
 165 }
 166
 167
 168 void get_icon (Task *tsk)
 169 {
 170    Panel *panel = tsk->area.panel;
 171    if (!panel->g_task.icon) return;
 172
 173         if (tsk->icon_data) {
 174                 free (tsk->icon_data);
 175                 tsk->icon_data = 0;
 176         }
 177    tsk->area.redraw = 1;
 178
 179    long *data;
 180    int num;
 181    data = server_get_property (tsk->win, server.atom._NET_WM_ICON, XA_CARDINAL, &num);
 182    if (data) {
 183       // get ARGB icon
 184       int w, h;
 185       long *tmp_data;
 186       tmp_data = get_best_icon (data, get_icon_count (data, num), num, &w, &h, panel->g_task.icon_size1);
 187
 188       tsk->icon_width = w;
 189       tsk->icon_height = h;
 190       tsk->icon_data = malloc (w * h * sizeof (long));
 191       memcpy (tsk->icon_data, tmp_data, w * h * sizeof (long));
 192
 193       XFree (data);
 194    }
 195    else {
 196       // get Pixmap icon
 197       XWMHints *hints = XGetWMHints(server.dsp, tsk->win);
 198       if (hints) {
 199          if (hints->flags & IconPixmapHint && hints->icon_pixmap != 0) {
 200                 // get width, height and depth for the pixmap
 201                                 Window root;
 202                                 int  icon_x, icon_y;
 203                                 uint border_width, bpp;
 204                                 uint icon_width, icon_height;
 205
 206                                 XGetGeometry(server.dsp, hints->icon_pixmap, &root, &icon_x, &icon_y, &icon_width, &icon_height, &border_width, &bpp);
 207
 208                       //printf("  get_pixmap\n");
 209                       Imlib_Image  img;
 210                                 imlib_context_set_drawable(hints->icon_pixmap);
 211                                 img = imlib_create_image_from_drawable(hints->icon_mask, 0, 0, icon_width, icon_height, 0);
 212                                 imlib_context_set_image(img);
 213                                 unsigned int *data = imlib_image_get_data();
 214                                 if (!data) {
 215                                         return;
 216                                 }
 217                                 tsk->icon_width = imlib_image_get_width();
 218                                 tsk->icon_height = imlib_image_get_height();
 219                                 tsk->icon_data = malloc (tsk->icon_width * tsk->icon_height * sizeof (long));
 220                                 memcpy (tsk->icon_data, data, tsk->icon_width * tsk->icon_height * sizeof (long));
 221                                 imlib_free_image();
 222                         }
 223          XFree(hints);
 224                 }
 225    }
 226 }
 227
 228
 229 void draw_task_icon (Task *tsk, int text_width, int active)
 230 {
 231    if (tsk->icon_data == 0) return;
 232
 233    Pixmap *pmap = (active == 0) ? (&tsk->area.pix.pmap) : (&tsk->area.pix_active.pmap);
 234
 235    /* Find pos */
 236    int pos_x;
 237    Panel *panel = (Panel*)tsk->area.panel;
 238    if (panel->g_task.centered) {
 239       if (panel->g_task.text)
 240          pos_x = (tsk->area.width - text_width - panel->g_task.icon_size1) / 2;
 241       else
 242          pos_x = (tsk->area.width - panel->g_task.icon_size1) / 2;
 243    }
 244    else pos_x = panel->g_task.area.paddingxlr + panel->g_task.area.pix.border.width;
 245
 246    /* Render */
 247    Imlib_Image icon;
 248    Imlib_Color_Modifier cmod;
 249    DATA8 red[256], green[256], blue[256], alpha[256];
 250
 251    // TODO: cpu improvement : compute only when icon changed
 252    DATA32 *data;
 253    /* do we have 64bit? => long = 8bit */
 254    if (sizeof(long) != 4) {
 255       int length = tsk->icon_width * tsk->icon_height;
 256       data = malloc(sizeof(DATA32) * length);
 257       int i;
 258       for (i = 0; i < length; ++i)
 259          data[i] = tsk->icon_data[i];
 260    }
 261    else data = (DATA32 *) tsk->icon_data;
 262
 263    icon = imlib_create_image_using_data (tsk->icon_width, tsk->icon_height, data);
 264    imlib_context_set_image (icon);
 265    imlib_context_set_drawable (*pmap);
 266
 267    cmod = imlib_create_color_modifier ();
 268    imlib_context_set_color_modifier (cmod);
 269    imlib_image_set_has_alpha (1);
 270    imlib_get_color_modifier_tables (red, green, blue, alpha);
 271
 272    int i, opacity;
 273    opacity = (active == 0) ? (255*panel->g_task.font.alpha) : (255*panel->g_task.font_active.alpha);
 274    for (i = 127; i < 256; i++) alpha[i] = opacity;
 275
 276    imlib_set_color_modifier_tables (red, green, blue, alpha);
 277
 278    //imlib_render_image_on_drawable (pos_x, pos_y);
 279    imlib_render_image_on_drawable_at_size (pos_x, panel->g_task.icon_posy, panel->g_task.icon_size1, panel->g_task.icon_size1);
 280
 281    imlib_free_color_modifier ();
 282    imlib_free_image ();
 283    if (sizeof(long) != 4) free(data);
 284 }
 285
 286
 287 void draw_task (void *obj, cairo_t *c, int active)
 288 {
 289    Task *tsk = obj;
 290    PangoLayout *layout;
 291    config_color *config_text;
 292    int width=0, height;
 293    Panel *panel = (Panel*)tsk->area.panel;
 294
 295    if (panel->g_task.text) {
 296                 /* Layout */
 297                 layout = pango_cairo_create_layout (c);
 298                 pango_layout_set_font_description (layout, panel->g_task.font_desc);
 299                 pango_layout_set_text (layout, tsk->title, -1);
 300
 301                 /* Drawing width and Cut text */
 302                 // pango use U+22EF or U+2026
 303                 pango_layout_set_width (layout, ((Taskbar*)tsk->area.parent)->text_width * PANGO_SCALE);
 304                 pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
 305
 306                 /* Center text */
 307                 if (panel->g_task.centered) pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
 308                 else pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
 309
 310                 pango_layout_get_pixel_size (layout, &width, &height);
 311
 312                 if (active) config_text = &panel->g_task.font_active;
 313                 else config_text = &panel->g_task.font;
 314
 315                 cairo_set_source_rgba (c, config_text->color[0], config_text->color[1], config_text->color[2], config_text->alpha);
 316
 317                 pango_cairo_update_layout (c, layout);
 318                 cairo_move_to (c, panel->g_task.text_posx, panel->g_task.text_posy);
 319                 pango_cairo_show_layout (c, layout);
 320
 321                 if (panel->g_task.font_shadow) {
 322                         cairo_set_source_rgba (c, 0.0, 0.0, 0.0, 0.5);
 323                         pango_cairo_update_layout (c, layout);
 324                         cairo_move_to (c, panel->g_task.text_posx + 1, panel->g_task.text_posy + 1);
 325                         pango_cairo_show_layout (c, layout);
 326                 }
 327                 g_object_unref (layout);
 328    }
 329
 330    if (panel->g_task.icon) {
 331       // icon use same opacity as text
 332       draw_task_icon (tsk, width, active);
 333    }
 334 }
 335