src/gui/lbxgui.c

   1 /*
   2  *  2ooM: The Master of Orion II Reverse Engineering Project
   3  *  Graphical tool for inspecting LBX archives.
   4  *  Copyright (C) 2010 Nick Bowler
   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 3 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
  17  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #include <config.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <math.h>
  23
  24 #include <gtk/gtk.h>
  25
  26 #include "lbx.h"
  27 #include "image.h"
  28 #include "render.h"
  29
  30 #include "bg.xbm"
  31
  32 extern char lbxgui_xml[];
  33
  34 static GtkTreeStore *archives;
  35 static GtkBuilder *builder;
  36
  37 static GtkWidget *canvas;
  38 static GdkGC     *bg_gc;
  39
  40 static struct lbx_image *image;
  41
  42 static GdkPixbuf *framebuf;
  43
  44 void play_toggled(GtkToggleButton *button, gpointer data)
  45 {
  46         gboolean active = gtk_toggle_button_get_active(button);
  47         GtkWidget *spin;
  48
  49         if (active && !image) {
  50                 gtk_toggle_button_set_active(button, FALSE);
  51                 return;
  52         }
  53
  54         spin = GTK_WIDGET(gtk_builder_get_object(builder, "framespin"));
  55         gtk_widget_set_sensitive(spin, !active);
  56
  57         if (active) {
  58                 gtk_spin_button_set_value(GTK_SPIN_BUTTON(spin), 0);
  59         }
  60 }
  61
  62 void set_frame(GtkSpinButton *spin, gpointer data)
  63 {
  64         unsigned frame = gtk_spin_button_get_value_as_int(spin);
  65
  66         if (image && framebuf)
  67                 render_to_pixbuf(image, framebuf, frame);
  68         gdk_window_invalidate_rect(canvas->window, NULL, FALSE);
  69 }
  70
  71 static void redraw_image(void)
  72 {
  73         GtkSpinButton *spin;
  74
  75         spin = GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "framespin"));
  76         set_frame(spin, NULL);
  77 }
  78
  79 static void tick(void *p, double delta)
  80 {
  81         static double elapsed = 0;
  82         double seconds_per_frame = 1.0/15;
  83         struct lbx_imginfo info;
  84         GtkSpinButton   *spin;
  85         GtkToggleButton *play;
  86         unsigned frame, newframe;
  87
  88         if (!image)
  89                 return;
  90
  91         lbx_img_getinfo(image, &info);
  92         spin = GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "framespin"));
  93         play = GTK_TOGGLE_BUTTON(gtk_builder_get_object(builder, "playbutton"));
  94
  95         frame = gtk_spin_button_get_value_as_int(spin);
  96         if (!gtk_toggle_button_get_active(play))
  97                 return;
  98
  99         elapsed += delta;
 100         newframe = frame;
 101         while (elapsed > seconds_per_frame) {
 102                 elapsed -= seconds_per_frame;
 103
 104                 if (++newframe >= image->frames) {
 105                         if (!info.looping) {
 106                                 gtk_toggle_button_set_active(play, FALSE);
 107                                 break;
 108                         }
 109
 110                         newframe = info.loopstart;
 111                 }
 112         }
 113
 114         if (frame != newframe)
 115                 gtk_spin_button_set_value(spin, newframe);
 116 }
 117
 118 static gboolean timeout(gpointer data)
 119 {
 120         static double lasttime = INFINITY;
 121         static GTimer *timer;
 122
 123         if (isinf(lasttime)) {
 124                 timer = g_timer_new();
 125                 if (timer) {
 126                         lasttime = 0;
 127                 }
 128         } else {
 129                 double time = g_timer_elapsed(timer, NULL);
 130
 131                 tick(data, time - lasttime);
 132                 lasttime = time;
 133         }
 134
 135         return TRUE;
 136 }
 137
 138 gboolean canvas_expose(GtkWidget *canvas, GdkEventExpose *event, gpointer data)
 139 {
 140         if (!framebuf)
 141                 return FALSE;
 142
 143         gdk_draw_rectangle(canvas->window, bg_gc, TRUE,
 144                 event->area.x, event->area.y,
 145                 event->area.width, event->area.height);
 146
 147         gdk_draw_pixbuf(canvas->window, NULL, framebuf,
 148                 event->area.x, event->area.y, event->area.x, event->area.y,
 149                 event->area.width, event->area.height,
 150                 GDK_RGB_DITHER_NORMAL, 0, 0);
 151
 152         return TRUE;
 153 }
 154
 155 static int alloc_framebuffer(struct lbx_image *image)
 156 {
 157         GtkSpinButton *spin;
 158
 159         if (framebuf)
 160                 g_object_unref(framebuf);
 161
 162         framebuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8,
 163                 image->width, image->height);
 164         g_return_val_if_fail(framebuf, -1);
 165
 166         spin = GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "framespin"));
 167         gtk_spin_button_set_range(spin, 0, image->frames-1);
 168         gtk_spin_button_set_value(spin, 0);
 169
 170         gtk_widget_set_size_request(canvas, image->width, image->height);
 171         return 0;
 172 }
 173
 174 static int close_image(void *handle)
 175 {
 176         lbx_file_close(handle);
 177         return 0;
 178 }
 179
 180 static struct lbx_image *load_lbx_image(struct lbx *archive, unsigned index)
 181 {
 182         LBXfile *file;
 183         struct lbx_image *image;
 184
 185         file = lbx_file_open(archive, index);
 186         g_return_val_if_fail(file, NULL);
 187
 188         image = lbx_img_open(file, &lbx_arch_fops, close_image);
 189         if (!image)
 190                 lbx_file_close(file);
 191         return image;
 192 }
 193
 194 void set_override(GtkComboBox *combo)
 195 {
 196         GtkTreeIter iter;
 197         gpointer lbx;
 198         guint    index;
 199         struct lbx_image *img;
 200
 201         memset(palette_override, 0, sizeof palette_override);
 202         if (!gtk_combo_box_get_active_iter(combo, &iter))
 203                 return;
 204
 205         gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
 206                 1, &lbx,
 207                 2, &index,
 208                 -1);
 209
 210         img = load_lbx_image(lbx, index);
 211         if (img) {
 212                 lbx_img_getpalette(img, palette_override);
 213                 lbx_img_close(img);
 214                 redraw_image();
 215         }
 216 }
 217
 218 void set_palette(GtkComboBox *combo)
 219 {
 220         GtkTreeIter iter;
 221         gpointer lbx;
 222         guint    index;
 223         LBXfile  *f;
 224
 225         memset(palette_external, 0, sizeof palette_external);
 226         if (!gtk_combo_box_get_active_iter(combo, &iter))
 227                 return;
 228
 229         gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
 230                 1, &lbx,
 231                 2, &index,
 232                 -1);
 233
 234         f = lbx_file_open(lbx, index);
 235         if (f) {
 236                 if (lbx_img_loadpalette(f, &lbx_arch_fops, palette_external))
 237                         memset(palette_external, 0, sizeof palette_external);
 238                 lbx_file_close(f);
 239         }
 240
 241         redraw_image();
 242 }
 243
 244 void set_image(GtkComboBox *combo)
 245 {
 246         GtkTreeIter iter;
 247         gpointer lbx;
 248         guint    index;
 249         struct lbx_image *img;
 250
 251         if (image) {
 252                 lbx_img_close(image);
 253                 image = NULL;
 254         }
 255
 256         gtk_widget_set_size_request(canvas, -1, -1);
 257         memset(palette_internal, 0, sizeof palette_internal);
 258         if (!gtk_combo_box_get_active_iter(combo, &iter))
 259                 return;
 260
 261         gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
 262                 1, &lbx,
 263                 2, &index,
 264                 -1);
 265
 266         img = load_lbx_image(lbx, index);
 267         if (img) {
 268                 if (lbx_img_getpalette(img, palette_internal) == -1) {
 269                         puts("crap");
 270                         lbx_img_close(img);
 271                 }
 272
 273                 if (alloc_framebuffer(img) == -1) {
 274                         puts("crap");
 275                         lbx_img_close(img);
 276                 }
 277         }
 278
 279         image = img;
 280         redraw_image();
 281 }
 282
 283 void set_background(GtkCheckMenuItem *item, gpointer data)
 284 {
 285         GdkColor black = { .red = 0,      .green = 0,      .blue = 0      };
 286         GdkColor dark  = { .red = 0x6666, .green = 0x6666, .blue = 0x6666 };
 287         GdkColor light = { .red = 0x9999, .green = 0x9999, .blue = 0x9999 };
 288
 289         if (gtk_check_menu_item_get_active(item)) {
 290                 /* Enable stippled background. */
 291                 gdk_gc_set_rgb_fg_color(bg_gc, &dark);
 292                 gdk_gc_set_rgb_bg_color(bg_gc, &light);
 293                 gdk_gc_set_fill(bg_gc, GDK_OPAQUE_STIPPLED);
 294         } else {
 295                 gdk_gc_set_rgb_fg_color(bg_gc, &black);
 296                 gdk_gc_set_fill(bg_gc, GDK_SOLID);
 297         }
 298         redraw_image();
 299 }
 300
 301 void show_about(GtkWidget *widget)
 302 {
 303         GtkWindow *parent = GTK_WINDOW(gtk_widget_get_toplevel(widget));
 304
 305         gtk_show_about_dialog(parent,
 306                 "name", g_get_application_name(),
 307                 "version", PACKAGE_VERSION,
 308                 "copyright", "Copyright \xc2\xa9 2010 Nick Bowler",
 309                 "website", "http://toom.sourceforge.net/",
 310                 NULL);
 311 }
 312
 313 static int load_archive(const char *path)
 314 {
 315         gchar *basename;
 316         GtkTreeIter iter1, iter2;
 317         unsigned nfiles;
 318         struct lbx *lbx;
 319
 320         lbx = lbx_fopen(path);
 321         if (!lbx)
 322                 return -1;
 323
 324         basename = g_path_get_basename(path);
 325         gtk_tree_store_append(archives, &iter1, NULL);
 326         gtk_tree_store_set(archives, &iter1,
 327                 0, basename,
 328                 1, (gpointer)lbx,
 329                 -1);
 330         g_free(basename);
 331
 332         for (unsigned i = 0; i < lbx->nfiles; i++) {
 333                 struct lbx_statbuf stat;
 334
 335                 lbx_file_stat(lbx, i, &stat);
 336                 gtk_tree_store_append(archives, &iter2, &iter1);
 337                 gtk_tree_store_set(archives, &iter2,
 338                         0, stat.name,
 339                         1, (gpointer)lbx,
 340                         2, (guint)i,
 341                         -1);
 342         }
 343
 344         return 0;
 345 }
 346
 347 static void load_error(const char *name, GtkWindow *window)
 348 {
 349         GtkWidget *dialog;
 350
 351         dialog = gtk_message_dialog_new(window,
 352                 GTK_DIALOG_MODAL,
 353                 GTK_MESSAGE_ERROR,
 354                 GTK_BUTTONS_OK,
 355                 "Failed to open %s.  Decent error messages coming eventually.",
 356                 name);
 357         gtk_dialog_run(GTK_DIALOG(dialog));
 358         gtk_widget_destroy(dialog);
 359 }
 360
 361 void open_archive(GtkWidget *widget)
 362 {
 363         GtkWindow *window = GTK_WINDOW(gtk_widget_get_toplevel(widget));
 364         GtkFileFilter *lbxfilter, *allfilter;
 365         GtkFileChooser *chooser;
 366         GtkTreeIter iter;
 367
 368         chooser = GTK_FILE_CHOOSER(gtk_file_chooser_dialog_new(
 369                 "Load Archive",
 370                 window,
 371                 GTK_FILE_CHOOSER_ACTION_OPEN,
 372                 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 373                 GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 374                 NULL));
 375
 376         lbxfilter = gtk_file_filter_new();
 377         gtk_file_filter_set_name(lbxfilter, "LBX Archives (*.lbx)");
 378         gtk_file_filter_add_pattern(lbxfilter, "*.lbx");
 379         gtk_file_filter_add_pattern(lbxfilter, "*.LBX");
 380
 381         allfilter = gtk_file_filter_new();
 382         gtk_file_filter_set_name(allfilter, "All Files");
 383         gtk_file_filter_add_pattern(allfilter, "*");
 384
 385         gtk_file_chooser_add_filter(chooser, lbxfilter);
 386         gtk_file_chooser_add_filter(chooser, allfilter);
 387
 388         while (gtk_dialog_run(GTK_DIALOG(chooser)) == GTK_RESPONSE_ACCEPT) {
 389                 gchar *name = gtk_file_chooser_get_filename(chooser);
 390
 391                 if (load_archive(name) == 0) {
 392                         g_free(name);
 393                         break;
 394                 }
 395
 396                 load_error(name, GTK_WINDOW(chooser));
 397                 g_free(name);
 398         }
 399
 400         gtk_widget_destroy(GTK_WIDGET(chooser));
 401 }
 402
 403 static void clear_combobox(GtkEntry *entry, GtkEntryIconPosition pos,
 404                            GdkEvent *event, gpointer data)
 405 {
 406         GtkComboBox *combo = data;
 407
 408         gtk_entry_set_text(entry, "");
 409         gtk_combo_box_set_active(combo, -1);
 410         redraw_image();
 411 }
 412
 413 static void init_combobox(GtkBuilder *builder, const char *name)
 414 {
 415         GtkComboBox *combo;
 416         GtkEntry *entry;
 417
 418         combo = GTK_COMBO_BOX(gtk_builder_get_object(builder, name));
 419         gtk_combo_box_set_model(combo, GTK_TREE_MODEL(archives));
 420         gtk_combo_box_entry_set_text_column(GTK_COMBO_BOX_ENTRY(combo), 0);
 421
 422         entry = GTK_ENTRY(gtk_bin_get_child(GTK_BIN(combo)));
 423         g_signal_connect(G_OBJECT(entry), "icon-press",
 424                 G_CALLBACK(clear_combobox), combo);
 425         gtk_entry_set_icon_from_stock(entry, GTK_ENTRY_ICON_SECONDARY,
 426                 GTK_STOCK_CLEAR);
 427 }
 428
 429 static void init_interface(void)
 430 {
 431         GtkTreeViewColumn *column;
 432         GtkCellRenderer *renderer;
 433         GtkTreeView *tree;
 434
 435         renderer = gtk_cell_renderer_text_new();
 436         column = gtk_tree_view_column_new();
 437         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 438         gtk_tree_view_column_add_attribute(column, renderer, "text", 0);
 439
 440         tree = GTK_TREE_VIEW(gtk_builder_get_object(builder, "treeview"));
 441         gtk_tree_view_set_model(tree, GTK_TREE_MODEL(archives));
 442         gtk_tree_view_append_column(tree, column);
 443
 444         init_combobox(builder, "palettechooser");
 445         init_combobox(builder, "imagechooser");
 446         init_combobox(builder, "overchooser");
 447 }
 448
 449 static void init_background(GdkDrawable *drawable)
 450 {
 451         GtkWidget *check;
 452         GdkBitmap *bitmap;
 453
 454         bg_gc = gdk_gc_new(canvas->window);
 455
 456         bitmap = gdk_bitmap_create_from_data(drawable, (gchar *)bg_bits,
 457                 bg_width, bg_height);
 458
 459         gdk_gc_set_stipple(bg_gc, bitmap);
 460         gdk_gc_set_ts_origin(bg_gc, 0, 0);
 461
 462         check = GTK_WIDGET(gtk_builder_get_object(builder, "menu-background"));
 463         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(check), TRUE);
 464         set_background(GTK_CHECK_MENU_ITEM(check), NULL);
 465 }
 466
 467 int main(int argc, char **argv)
 468 {
 469         GtkWidget *window;
 470         GError *err = NULL;
 471
 472         if (!gtk_init_with_args(&argc, &argv, NULL, NULL, NULL, &err)) {
 473                 fprintf(stderr, "%s\n", err->message);
 474                 return EXIT_FAILURE;
 475         }
 476
 477         archives = gtk_tree_store_new(3,
 478                 G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_UINT);
 479         while (*argv)
 480                 load_archive(*argv++);
 481
 482         builder = gtk_builder_new();
 483         if (!gtk_builder_add_from_string(builder, lbxgui_xml, -1, &err)) {
 484                 fprintf(stderr, "%s\n", err->message);
 485                 return EXIT_FAILURE;
 486         }
 487
 488         window = GTK_WIDGET(gtk_builder_get_object(builder, "mainwindow"));
 489         canvas = GTK_WIDGET(gtk_builder_get_object(builder, "canvas"));
 490
 491         init_interface();
 492         gtk_builder_connect_signals(builder, window);
 493
 494         g_timeout_add_full(G_PRIORITY_DEFAULT_IDLE, 10, timeout, NULL, NULL);
 495         gtk_widget_show_all(window);
 496
 497         init_background(canvas->window);
 498         gtk_main();
 499 }