src/logwindow.c

   1 /*
   2  * Copyright (C) 2008 - 2016 The Geeqie Team
   3  *
   4  * Authors: Vladimir Nadvornik, Laurent Monin
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include "main.h"
  22 #include "logwindow.h"
  23
  24 #include "misc.h"
  25 #include "secure_save.h"
  26 #include "ui_misc.h"
  27 #include "window.h"
  28
  29 #include <gdk/gdkkeysyms.h>
  30
  31
  32 typedef struct _LogWindow LogWindow;
  33
  34 struct _LogWindow
  35 {
  36         GtkWidget *window;
  37         GtkWidget *scrolledwin;
  38         GtkWidget *text;
  39
  40         GdkColor colors[LOG_COUNT];
  41
  42         guint lines;
  43         GtkWidget *regexp_box;
  44         GtkWidget *bar;
  45         GtkWidget *pause;
  46         GtkWidget *wrap;
  47         GtkWidget *debug_level;
  48 };
  49
  50 typedef struct _LogDef LogDef;
  51 struct _LogDef
  52 {
  53         LogType type;
  54         const gchar *tag;
  55         const gchar *color;
  56 };
  57
  58 /* Keep LogType order !! */
  59 static LogDef logdefs[LOG_COUNT] = {
  60         { LOG_NORMAL,   "normal",       "black"  },
  61         { LOG_MSG,      "message",      "blue"   },
  62         { LOG_WARN,     "warning",      "orange" },
  63         { LOG_ERROR,    "error",        "red"    },
  64 };
  65
  66 static LogWindow *logwindow = NULL;
  67
  68 static void hide_cb(GtkWidget *widget, LogWindow *logwin)
  69 {
  70 }
  71
  72 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event,
  73                             LogWindow *logwin)
  74 {
  75         if (event && event->keyval == GDK_KEY_Escape)
  76                 gtk_widget_hide(logwin->window);
  77         return FALSE;
  78 }
  79
  80
  81 static void log_window_pause_cb(GtkWidget *widget, gpointer data)
  82 {
  83         options->log_window.paused = !options->log_window.paused;
  84 }
  85
  86 static void log_window_line_wrap_cb(GtkWidget *widget, gpointer data)
  87 {
  88         LogWindow *logwin = data;
  89
  90         options->log_window.line_wrap = !options->log_window.line_wrap;
  91
  92         if (options->log_window.line_wrap)
  93                 {
  94                 gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(logwin->text), GTK_WRAP_WORD);
  95                 }
  96         else
  97                 {
  98                 gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(logwin->text), GTK_WRAP_NONE);
  99                 }
 100 }
 101
 102 static void log_window_regexp_cb(GtkWidget *text_entry, gpointer data)
 103 {
 104         gchar *new_regexp;
 105
 106         new_regexp = g_strdup(gtk_entry_get_text(GTK_ENTRY(text_entry)));
 107         set_regexp(new_regexp);
 108         g_free(new_regexp);
 109 }
 110
 111 static void log_window_debug_spin_cb(GtkSpinButton *debug_level, gpointer data)
 112 {
 113         set_debug_level(gtk_spin_button_get_value(debug_level));
 114 }
 115
 116 static LogWindow *log_window_create(LayoutWindow *lw)
 117 {
 118         LogWindow *logwin;
 119         GtkWidget *window;
 120         GtkWidget *scrolledwin;
 121         GtkWidget *text;
 122         GtkTextBuffer *buffer;
 123         GtkTextIter iter;
 124         GtkWidget *button;
 125         GtkWidget *win_vbox;
 126         GtkWidget *textbox;
 127         GtkWidget *hbox;
 128
 129         logwin = g_new0(LogWindow, 1);
 130
 131         window = window_new(GTK_WINDOW_TOPLEVEL, "log", NULL, NULL, _("Log"));
 132         win_vbox = gtk_vbox_new(FALSE, PREF_PAD_SPACE);
 133         gtk_container_add(GTK_CONTAINER(window), win_vbox);
 134         gtk_widget_show(win_vbox);
 135
 136         gtk_widget_set_size_request(window, lw->options.log_window.w, lw->options.log_window.h);
 137         gtk_window_move(GTK_WINDOW(window), lw->options.log_window.x, lw->options.log_window.y);
 138
 139         g_signal_connect(G_OBJECT(window), "delete_event",
 140                          G_CALLBACK(gtk_widget_hide_on_delete), NULL);
 141         g_signal_connect(G_OBJECT(window), "key_press_event",
 142                          G_CALLBACK(key_pressed), logwin);
 143         g_signal_connect(G_OBJECT(window), "hide",
 144                          G_CALLBACK(hide_cb), logwin);
 145         gtk_widget_realize(window);
 146
 147         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 148         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 149                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
 150         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 151                                             GTK_SHADOW_IN);
 152
 153         gtk_container_add(GTK_CONTAINER(win_vbox), scrolledwin);
 154         gtk_widget_show(scrolledwin);
 155
 156         hbox = pref_box_new(win_vbox, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
 157
 158         gtk_widget_show(hbox);
 159         logwin->debug_level = pref_spin_new_mnemonic(hbox, _("Debug level:"), NULL,
 160                           0, 4, 1, 1, get_debug_level(),G_CALLBACK(log_window_debug_spin_cb),
 161                           logwin->debug_level );
 162
 163         logwin->pause = pref_button_new(hbox, NULL, "Pause", FALSE,
 164                                            G_CALLBACK(log_window_pause_cb), NULL);
 165
 166         logwin->wrap = pref_button_new(hbox, NULL, "Line wrap", FALSE,
 167                                            G_CALLBACK(log_window_line_wrap_cb), logwin);
 168
 169         pref_label_new(hbox, "Filter regexp");
 170
 171         textbox = gtk_entry_new();
 172         gtk_container_add(GTK_CONTAINER(hbox), textbox);
 173         gtk_widget_show(textbox);
 174         g_signal_connect(G_OBJECT(textbox), "activate",
 175                          G_CALLBACK(log_window_regexp_cb), logwin);
 176
 177         text = gtk_text_view_new();
 178         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 179         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
 180         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 181         gtk_text_buffer_get_start_iter(buffer, &iter);
 182         gtk_text_buffer_create_mark(buffer, "end", &iter, FALSE);
 183         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 184         gtk_widget_show(text);
 185
 186         logwin->window = window;
 187         logwin->scrolledwin = scrolledwin;
 188         logwin->text = text;
 189         logwin->lines = 1;
 190         logwin->regexp_box = textbox;
 191         lw->log_window = logwin->window;
 192         return logwin;
 193 }
 194
 195 static void log_window_init(LogWindow *logwin)
 196 {
 197         GtkTextBuffer *buffer;
 198 #if !GTK_CHECK_VERSION(3,0,0)
 199         GdkColormap *colormap;
 200         gboolean success[LOG_COUNT];
 201 #endif
 202         gint i;
 203
 204         g_assert(logwin != NULL);
 205         g_assert(logwin->colors != NULL);
 206 #if !GTK_CHECK_VERSION(3,0,0)
 207         for (i = LOG_NORMAL; i < LOG_COUNT; i++)
 208                 {
 209                 gboolean ok = gdk_color_parse(logdefs[i].color, &logwin->colors[i]);
 210                 if (ok == TRUE) continue;
 211
 212                 if (i == LOG_NORMAL) return;
 213                 memcpy(&logwin->colors[i], &logwin->colors[LOG_NORMAL], sizeof(GdkColor));
 214                 }
 215
 216         colormap = gdk_drawable_get_colormap(gtk_widget_get_window(logwin->window));
 217         gdk_colormap_alloc_colors(colormap, logwin->colors, LOG_COUNT, FALSE, TRUE, success);
 218
 219         for (i = LOG_NORMAL; i < LOG_COUNT; i++)
 220                 {
 221                 if (success[i] == FALSE)
 222                         {
 223                         GtkStyle *style;
 224                         gint j;
 225
 226                         g_warning("LogWindow: color allocation failed\n");
 227                         style = gtk_widget_get_style(logwin->window);
 228                         for (j = LOG_NORMAL; j < LOG_COUNT; j++)
 229                                 logwin->colors[j] = style->black;
 230                         break;
 231                         }
 232                 }
 233 #endif
 234         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(logwin->text));
 235         for (i = LOG_NORMAL; i < LOG_COUNT; i++)
 236                 gtk_text_buffer_create_tag(buffer, logdefs[i].tag,
 237                                            "foreground-gdk", &logwin->colors[i],
 238                                            "family", "MonoSpace",
 239                                            NULL);
 240 }
 241
 242 static void log_window_show(LogWindow *logwin)
 243 {
 244         GtkTextView *text = GTK_TEXT_VIEW(logwin->text);
 245         GtkTextBuffer *buffer;
 246         GtkTextMark *mark;
 247         gchar *regexp;
 248
 249         g_assert(logwin != NULL);
 250
 251         buffer = gtk_text_view_get_buffer(text);
 252         mark = gtk_text_buffer_get_mark(buffer, "end");
 253         gtk_text_view_scroll_mark_onscreen(text, mark);
 254
 255         gtk_window_present(GTK_WINDOW(logwin->window));
 256
 257         log_window_append("", LOG_NORMAL); // to flush memorized lines
 258
 259         regexp = g_strdup(get_regexp());
 260         if (regexp != NULL)
 261                 {
 262                 gtk_entry_set_text(GTK_ENTRY(logwin->regexp_box), regexp);
 263                 g_free(regexp);
 264                 }
 265 }
 266
 267 void log_window_new(LayoutWindow *lw)
 268 {
 269         if (logwindow == NULL)
 270                 {
 271                 LogWindow *logwin;
 272
 273                 logwin = log_window_create(lw);
 274                 log_window_init(logwin);
 275                 logwindow = logwin;
 276                 }
 277
 278         log_window_show(logwindow);
 279 }
 280
 281 typedef struct _LogMsg LogMsg;
 282
 283 struct _LogMsg {
 284         gchar *text;
 285         LogType type;
 286 };
 287
 288
 289 static void log_window_insert_text(GtkTextBuffer *buffer, GtkTextIter *iter,
 290                                    const gchar *text, const gchar *tag)
 291 {
 292         gchar *str_utf8;
 293
 294         if (!text || !*text) return;
 295
 296         str_utf8 = utf8_validate_or_convert(text);
 297         gtk_text_buffer_insert_with_tags_by_name(buffer, iter, str_utf8, -1, tag, NULL);
 298         g_free(str_utf8);
 299 }
 300
 301
 302 void log_window_append(const gchar *str, LogType type)
 303 {
 304         GtkTextView *text;
 305         GtkTextBuffer *buffer;
 306         GtkTextIter iter;
 307         static GList *memory = NULL;
 308
 309         if (logwindow == NULL)
 310                 {
 311                 if (*str) {
 312                         LogMsg *msg = g_new(LogMsg, 1);
 313
 314                         msg->text = g_strdup(str);
 315                         msg->type = type;
 316
 317                         memory = g_list_prepend(memory, msg);
 318
 319                         while (g_list_length(memory) >= options->log_window_lines)
 320                                 {
 321                                 GList *work = g_list_last(memory);
 322                                 LogMsg *oldest_msg = work->data;
 323
 324                                 g_free(oldest_msg->text);
 325                                 memory = g_list_delete_link(memory, work);
 326                                 }
 327                         }
 328                 return;
 329                 }
 330
 331         text = GTK_TEXT_VIEW(logwindow->text);
 332         buffer = gtk_text_view_get_buffer(text);
 333
 334         if (options->log_window_lines > 0 && logwindow->lines >= options->log_window_lines)
 335                 {
 336                 GtkTextIter start, end;
 337
 338                 gtk_text_buffer_get_start_iter(buffer, &start);
 339                 end = start;
 340                 gtk_text_iter_forward_lines(&end, logwindow->lines - options->log_window_lines);
 341                 gtk_text_buffer_delete(buffer, &start, &end);
 342                 }
 343
 344         gtk_text_buffer_get_end_iter(buffer, &iter);
 345
 346         {
 347         GList *work = g_list_last(memory);
 348
 349         while (work)
 350                 {
 351                 GList *prev;
 352                 LogMsg *oldest_msg = work->data;
 353
 354                 log_window_insert_text(buffer, &iter, oldest_msg->text, logdefs[oldest_msg->type].tag);
 355
 356                 prev = work->prev;
 357                 memory = g_list_delete_link(memory, work);
 358                 work = prev;
 359                 }
 360         }
 361
 362         log_window_insert_text(buffer, &iter, str, logdefs[type].tag);
 363
 364         if (!options->log_window.paused)
 365                 {
 366                 if (gtk_widget_get_visible(GTK_WIDGET(text)))
 367                         {
 368                         GtkTextMark *mark;
 369
 370                         mark = gtk_text_buffer_get_mark(buffer, "end");
 371                         gtk_text_view_scroll_mark_onscreen(text, mark);
 372                         }
 373                 }
 374
 375         logwindow->lines = gtk_text_buffer_get_line_count(buffer);
 376 }
 377 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */