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