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    Task *new_tsk;
  40    int desktop, monitor;
  41
  42    if (!win || window_is_hidden (win) || win == window.main_win) return;
  43
  44    new_tsk = malloc(sizeof(Task));
  45    new_tsk->win = win;
  46    new_tsk->title = 0;
  47    new_tsk->icon_data = 0;
  48
  49    get_icon(new_tsk);
  50    get_title(new_tsk);
  51    memcpy(&new_tsk->area, &g_task.area, sizeof(Area));
  52    memcpy(&new_tsk->area_active, &g_task.area_active, sizeof(Area));
  53    desktop = window_get_desktop (new_tsk->win);
  54    monitor = window_get_monitor (new_tsk->win);
  55
  56    //if (panel.mode == MULTI_MONITOR) monitor = window_get_monitor (new_tsk->win);
  57    //else monitor = 0;
  58    //printf("task %s : desktop %d, monitor %d\n", new_tsk->title, desktop, monitor);
  59
  60    XSelectInput (server.dsp, new_tsk->win, PropertyChangeMask|StructureNotifyMask);
  61
  62    if (desktop == 0xFFFFFFFF) {
  63       if (new_tsk->title) {
  64          free (new_tsk->title);
  65          new_tsk->title = 0;
  66       }
  67       if (new_tsk->icon_data) {
  68          free (new_tsk->icon_data);
  69          new_tsk->icon_data = 0;
  70       }
  71       free(new_tsk);
  72       fprintf(stderr, "task on all desktop : ignored\n");
  73       return;
  74    }
  75
  76    //printf("add_task %d  %s\n", index(desktop, monitor), new_tsk->title);
  77    Taskbar *tskbar;
  78    tskbar = &panel.taskbar[index(desktop, monitor)];
  79    new_tsk->area.parent = tskbar;
  80    tskbar->area.list = g_slist_append(tskbar->area.list, new_tsk);
  81
  82    if (resize_tasks (tskbar))
  83       redraw (&tskbar->area);
  84 }
  85
  86
  87 void remove_task (Task *tsk)
  88 {
  89    if (!tsk) return;
  90
  91    Taskbar *tskbar;
  92    tskbar = (Taskbar*)tsk->area.parent;
  93    tskbar->area.list = g_slist_remove(tskbar->area.list, tsk);
  94    resize_tasks (tskbar);
  95    redraw (&tskbar->area);
  96    //printf("remove_task %d  %s\n", index(tskbar->desktop, tskbar->monitor), tsk->title);
  97
  98    if (tsk->title) {
  99       free (tsk->title);
 100       tsk->title = 0;
 101    }
 102    if (tsk->icon_data) {
 103       free (tsk->icon_data);
 104       tsk->icon_data = 0;
 105    }
 106    XFreePixmap (server.dsp, tsk->area.pmap);
 107    XFreePixmap (server.dsp, tsk->area_active.pmap);
 108    free(tsk);
 109 }
 110
 111
 112 void get_title(Task *tsk)
 113 {
 114    if (!g_task.text) return;
 115
 116    char *title, *name;
 117
 118    name = server_get_property (tsk->win, server.atom._NET_WM_VISIBLE_NAME, server.atom.UTF8_STRING, 0);
 119    if (!name || !strlen(name)) {
 120       name = server_get_property (tsk->win, server.atom._NET_WM_NAME, server.atom.UTF8_STRING, 0);
 121       if (!name || !strlen(name)) {
 122          name = server_get_property (tsk->win, server.atom.WM_NAME, XA_STRING, 0);
 123          if (!name || !strlen(name)) {
 124             name = malloc(10);
 125             strcpy(name, "Untitled");
 126          }
 127       }
 128    }
 129
 130    // add space before title
 131    title = malloc(strlen(name)+2);
 132    if (g_task.icon) strcpy(title, " ");
 133    else title[0] = 0;
 134    strcat(title, name);
 135    if (name) XFree (name);
 136
 137    if (tsk->title)
 138       free(tsk->title);
 139    tsk->title = title;
 140 }
 141
 142
 143 void get_icon (Task *tsk)
 144 {
 145    if (!g_task.icon) return;
 146
 147    long *data;
 148    int num;
 149
 150    data = server_get_property (tsk->win, server.atom._NET_WM_ICON, XA_CARDINAL, &num);
 151    if (!data) return;
 152
 153    int w, h;
 154    long *tmp_data;
 155    tmp_data = get_best_icon (data, get_icon_count (data, num), num, &w, &h, g_task.icon_size1);
 156
 157    tsk->icon_width = w;
 158    tsk->icon_height = h;
 159    tsk->icon_data = malloc (w * h * sizeof (long));
 160    memcpy (tsk->icon_data, tmp_data, w * h * sizeof (long));
 161
 162    XFree (data);
 163 }
 164
 165
 166 void draw_task_icon (Task *tsk, int text_width, int active)
 167 {
 168    if (tsk->icon_data == 0) get_icon (tsk);
 169    if (tsk->icon_data == 0) return;
 170
 171    Pixmap *pmap;
 172
 173    if (active) pmap = &tsk->area_active.pmap;
 174    else pmap = &tsk->area.pmap;
 175
 176    /* Find pos */
 177    int pos_x;
 178    if (g_task.centered) {
 179       if (g_task.text)
 180          pos_x = (tsk->area.width - text_width - g_task.icon_size1) / 2;
 181       else
 182          pos_x = (tsk->area.width - g_task.icon_size1) / 2;
 183    }
 184    else pos_x = g_task.area.paddingx + g_task.area.border.width;
 185
 186    /* Render */
 187    Imlib_Image icon;
 188    Imlib_Color_Modifier cmod;
 189    DATA8 red[256], green[256], blue[256], alpha[256];
 190
 191    // TODO: cpu improvement : compute only when icon changed
 192    DATA32 *data;
 193    /* do we have 64bit? => long = 8bit */
 194    if (sizeof(long) != 4) {
 195       int length = tsk->icon_width * tsk->icon_height;
 196       data = malloc(sizeof(DATA32) * length);
 197       int i;
 198       for (i = 0; i < length; ++i)
 199          data[i] = tsk->icon_data[i];
 200    }
 201    else data = (DATA32 *) tsk->icon_data;
 202
 203    icon = imlib_create_image_using_data (tsk->icon_width, tsk->icon_height, data);
 204    imlib_context_set_image (icon);
 205    imlib_context_set_drawable (*pmap);
 206
 207    cmod = imlib_create_color_modifier ();
 208    imlib_context_set_color_modifier (cmod);
 209    imlib_image_set_has_alpha (1);
 210    imlib_get_color_modifier_tables (red, green, blue, alpha);
 211
 212    int i, opacity;
 213    if (active) opacity = 255*g_task.font_active.alpha;
 214    else opacity = 255*g_task.font.alpha;
 215    for(i = 127; i < 256; i++) alpha[i] = opacity;
 216
 217    imlib_set_color_modifier_tables (red, green, blue, alpha);
 218
 219    //imlib_render_image_on_drawable (pos_x, pos_y);
 220    imlib_render_image_on_drawable_at_size (pos_x, g_task.icon_posy, g_task.icon_size1, g_task.icon_size1);
 221
 222    imlib_free_color_modifier ();
 223    imlib_free_image ();
 224    if (sizeof(long) != 4) free(data);
 225 }
 226
 227
 228 void draw_task_title (cairo_t *c, Task *tsk, int active)
 229 {
 230    PangoLayout *layout;
 231    config_color *config_text;
 232    int width, height;
 233
 234    if (g_task.text) {
 235       /* Layout */
 236       layout = pango_cairo_create_layout (c);
 237       pango_layout_set_font_description (layout, g_task.font_desc);
 238       pango_layout_set_text (layout, tsk->title, -1);
 239
 240       /* Drawing width and Cut text */
 241       pango_layout_set_width (layout, ((Taskbar*)tsk->area.parent)->text_width * PANGO_SCALE);
 242       pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
 243
 244       /* Center text */
 245       if (g_task.centered) pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
 246       else pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
 247
 248       pango_layout_get_pixel_size (layout, &width, &height);
 249
 250       if (active) config_text = &g_task.font_active;
 251       else config_text = &g_task.font;
 252
 253       cairo_set_source_rgba (c, config_text->color[0], config_text->color[1], config_text->color[2], config_text->alpha);
 254
 255       pango_cairo_update_layout (c, layout);
 256       cairo_move_to (c, g_task.text_posx, g_task.text_posy);
 257       pango_cairo_show_layout (c, layout);
 258
 259       if (g_task.font_shadow) {
 260          cairo_set_source_rgba (c, 0.0, 0.0, 0.0, 0.5);
 261          pango_cairo_update_layout (c, layout);
 262          cairo_move_to (c, g_task.text_posx + 1, g_task.text_posy + 1);
 263          pango_cairo_show_layout (c, layout);
 264       }
 265       g_object_unref (layout);
 266    }
 267
 268    if (g_task.icon) {
 269       // icon use same opacity as text
 270       draw_task_icon (tsk, width, active);
 271    }
 272 }
 273
 274
 275 int draw_foreground_task (void *obj, cairo_t *c)
 276 {
 277    Task *tsk = obj;
 278    cairo_surface_t *cs;
 279    cairo_t *ca;
 280    //printf("  draw_foreground_task\n");
 281
 282    draw_task_title (c, tsk, 0);
 283
 284    // draw active pmap
 285    if (tsk->area_active.pmap) XFreePixmap (server.dsp, tsk->area_active.pmap);
 286    tsk->area_active.pmap = server_create_pixmap (tsk->area.width, tsk->area.height);
 287
 288    // add layer of root pixmap
 289    XCopyArea (server.dsp, server.pmap, tsk->area_active.pmap, server.gc, tsk->area.posx, tsk->area.posy, tsk->area.width, tsk->area.height, 0, 0);
 290
 291    cs = cairo_xlib_surface_create (server.dsp, tsk->area_active.pmap, server.visual, tsk->area.width, tsk->area.height);
 292    ca = cairo_create (cs);
 293
 294    // redraw task
 295    draw_background (&tsk->area_active, ca);
 296    draw_task_title (ca, tsk, 1);
 297
 298    cairo_destroy (ca);
 299    cairo_surface_destroy (cs);
 300    return 0;
 301 }
 302