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