src/gui/lbxgui.c

   1 #include <config.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <math.h>
   5
   6 #include <gtk/gtk.h>
   7
   8 #include "lbx.h"
   9 #include "image.h"
  10
  11 #include "bg.xbm"
  12
  13 static GtkTreeStore *archives;
  14 static GtkBuilder *builder;
  15
  16 static GtkWidget *canvas;
  17 static GdkGC     *bg_gc;
  18
  19 static LBX_IMG *image;
  20 /* LBX images can have up to three palettes, with each superseding the last. */
  21 static struct lbx_colour palette_external[256];
  22 static struct lbx_colour palette_internal[256];
  23 static struct lbx_colour palette_override[256];
  24
  25 GdkPixbuf *framebuf;
  26
  27 void play_toggled(GtkToggleButton *button, gpointer data)
  28 {
  29         gboolean active = gtk_toggle_button_get_active(button);
  30         GtkWidget *spin;
  31
  32         if (active && !image) {
  33                 gtk_toggle_button_set_active(button, FALSE);
  34                 return;
  35         }
  36
  37         spin = GTK_WIDGET(gtk_builder_get_object(builder, "framespin"));
  38         gtk_widget_set_sensitive(spin, !active);
  39
  40         if (active) {
  41                 gtk_spin_button_set_value(GTK_SPIN_BUTTON(spin), 0);
  42         }
  43 }
  44
  45 static void get_colour(unsigned char index, unsigned char out[static 3])
  46 {
  47         struct lbx_colour *colour;
  48
  49         if (palette_override[index].active)
  50                 colour = palette_override + index;
  51         else if (palette_internal[index].active)
  52                 colour = palette_internal + index;
  53         else if (palette_external[index].active)
  54                 colour = palette_external + index;
  55         else
  56                 colour = &(struct lbx_colour) { .red = 0xff, .blue = 0xff };
  57
  58         out[0] = colour->red;
  59         out[1] = colour->green;
  60         out[2] = colour->blue;
  61 }
  62
  63 static int render_frame(LBX_IMG *img, GdkPixbuf *buf, unsigned frame)
  64 {
  65         unsigned char **imgdata, **imgmask;
  66         struct lbx_imginfo info;
  67         unsigned char *data;
  68         unsigned stride;
  69
  70         lbximg_getinfo(image, &info);
  71         imgdata = lbximg_getframe(image, frame);
  72         if (!imgdata) {
  73                 printf("failed to decode frame %u\n", frame);
  74                 return -1;
  75         }
  76         imgmask = lbximg_getmask(image);
  77
  78         data   = gdk_pixbuf_get_pixels(buf);
  79         stride = gdk_pixbuf_get_rowstride(buf);
  80
  81         for (unsigned i = 0; i < info.height; i++) {
  82                 unsigned char (*p)[4] = (void *)(data + i*stride);
  83
  84                 for (unsigned j = 0; j < info.width; j++) {
  85                         if (imgmask[i][j]) {
  86                                 get_colour(imgdata[i][j], p[j]);
  87                                 p[j][3] = -1;
  88                         } else {
  89                                 p[j][3] = 0;
  90                         }
  91                 }
  92         }
  93
  94         return 0;
  95 }
  96
  97 void set_frame(GtkSpinButton *spin, gpointer data)
  98 {
  99         unsigned frame = gtk_spin_button_get_value_as_int(spin);
 100
 101         render_frame(image, framebuf, frame);
 102         gdk_window_invalidate_rect(canvas->window, NULL, FALSE);
 103 }
 104
 105 static void tick(void *p, double delta)
 106 {
 107         static double elapsed = 0;
 108         double seconds_per_frame = 1.0/15;
 109         struct lbx_imginfo info;
 110         GtkSpinButton   *spin;
 111         GtkToggleButton *play;
 112         unsigned frame;
 113
 114         if (!image)
 115                 return;
 116
 117         lbximg_getinfo(image, &info);
 118         spin = GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "framespin"));
 119         play = GTK_TOGGLE_BUTTON(gtk_builder_get_object(builder, "playbutton"));
 120
 121         frame = gtk_spin_button_get_value_as_int(spin);
 122         if (!gtk_toggle_button_get_active(play))
 123                 return;
 124
 125         elapsed += delta;
 126         while (elapsed > seconds_per_frame) {
 127                 elapsed -= seconds_per_frame;
 128
 129                 if (++frame >= info.nframes) {
 130                         if (!info.looping) {
 131                                 gtk_toggle_button_set_active(play, FALSE);
 132                                 break;
 133                         }
 134
 135                         frame = info.loopstart;
 136                 }
 137
 138                 gtk_spin_button_set_value(spin, frame);
 139         }
 140 }
 141
 142 static gboolean timeout(gpointer data)
 143 {
 144         static double lasttime = INFINITY;
 145         static GTimer *timer;
 146
 147         if (isinf(lasttime)) {
 148                 timer = g_timer_new();
 149                 if (timer) {
 150                         lasttime = 0;
 151                 }
 152         } else {
 153                 double time = g_timer_elapsed(timer, NULL);
 154
 155                 tick(data, time - lasttime);
 156                 lasttime = time;
 157         }
 158
 159         return TRUE;
 160 }
 161
 162 gboolean canvas_expose(GtkWidget *canvas, GdkEventExpose *event, gpointer data)
 163 {
 164         if (!framebuf)
 165                 return TRUE;
 166
 167         gdk_draw_rectangle(canvas->window, bg_gc, TRUE,
 168                 event->area.x, event->area.y,
 169                 event->area.width, event->area.height);
 170
 171         gdk_draw_pixbuf(canvas->window, NULL, framebuf,
 172                 event->area.x, event->area.y, event->area.x, event->area.y,
 173                 event->area.width, event->area.height,
 174                 GDK_RGB_DITHER_NORMAL, 0, 0);
 175
 176         return TRUE;
 177 }
 178
 179 static int init_framedata(int reset)
 180 {
 181         struct lbx_imginfo info;
 182         GtkSpinButton *spin;
 183
 184         if (!image)
 185                 return 0;
 186
 187         lbximg_getinfo(image, &info);
 188         framebuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8,
 189                 info.width, info.height);
 190         if (!framebuf) {
 191                 printf("failed to allocate pixbuf\n");
 192                 return -1;
 193         }
 194
 195         gtk_widget_set_size_request(canvas, info.width, info.height);
 196
 197         spin = GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "framespin"));
 198         gtk_spin_button_set_range(spin, 0, info.nframes-1);
 199         gtk_spin_button_set_value(spin, 0);
 200         set_frame(spin, NULL);
 201         return 0;
 202 }
 203
 204 static int img_close(void *handle)
 205 {
 206         if (framebuf) {
 207                 g_object_unref(framebuf);
 208                 framebuf = NULL;
 209         }
 210
 211         lbx_file_close(handle);
 212         return 0;
 213 }
 214
 215 void set_override_data(GtkComboBox *combo)
 216 {
 217         GtkTreeIter iter;
 218         gpointer lbx;
 219         guint    index;
 220         LBXfile  *f;
 221         LBX_IMG  *img;
 222
 223         if (!gtk_combo_box_get_active_iter(combo, &iter))
 224                 return;
 225
 226         gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
 227                 1, &lbx,
 228                 2, &index,
 229                 -1);
 230
 231         f = lbx_file_open(lbx, index);
 232         if (f) {
 233                 img = lbximg_open(f, &lbx_arch_fops, NULL);
 234                 if (img) {
 235                         memset(palette_override, 0, sizeof palette_override);
 236                         lbximg_getpalette(img, palette_override);
 237                         lbximg_close(img);
 238                         init_framedata(0);
 239                 }
 240
 241                 lbx_file_close(f);
 242         } else {
 243                 puts("damn");
 244         }
 245 }
 246
 247 void set_palette_data(GtkComboBox *combo)
 248 {
 249         GtkTreeIter iter;
 250         gpointer lbx;
 251         guint    index;
 252         LBXfile  *f;
 253
 254         if (!gtk_combo_box_get_active_iter(combo, &iter))
 255                 return;
 256
 257         gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
 258                 1, &lbx,
 259                 2, &index,
 260                 -1);
 261
 262         f = lbx_file_open(lbx, index);
 263         if (f) {
 264                 if (lbximg_loadpalette(f, &lbx_arch_fops, palette_external))
 265                         memset(palette_external, 0, sizeof palette_external);
 266                 lbx_file_close(f);
 267         }
 268
 269         init_framedata(0);
 270 }
 271
 272 void set_image_data(GtkComboBox *combo)
 273 {
 274         GtkTreeIter iter;
 275         gpointer lbx;
 276         guint    index;
 277         LBXfile  *f;
 278
 279         if (!gtk_combo_box_get_active_iter(combo, &iter))
 280                 return;
 281
 282         gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
 283                 1, &lbx,
 284                 2, &index,
 285                 -1);
 286
 287         f = lbx_file_open(lbx, index);
 288         if (f) {
 289                 if (image) {
 290                         lbximg_close(image);
 291                         image = NULL;
 292                 }
 293
 294                 image = lbximg_open(f, &lbx_arch_fops, img_close);
 295                 if (image) {
 296                         memset(palette_internal, 0, sizeof palette_internal);
 297                         if (lbximg_getpalette(image, palette_internal) == -1) {
 298                                 puts("crap");
 299                                 lbximg_close(image);
 300                         }
 301
 302                         if (init_framedata(1) == -1) {
 303                                 puts("crap");
 304                                 lbximg_close(image);
 305                         }
 306                 } else {
 307                         puts("fuck");
 308                         lbx_file_close(f);
 309                 }
 310         } else {
 311                 puts("damn");
 312         }
 313 }
 314
 315 void show_about(GtkWidget *widget)
 316 {
 317         GtkWindow *parent = GTK_WINDOW(gtk_widget_get_toplevel(widget));
 318
 319         gtk_show_about_dialog(parent,
 320                 "name", g_get_application_name(),
 321                 "version", PACKAGE_VERSION,
 322                 "copyright", "Copyright \xc2\xa9 2010 Nick Bowler",
 323                 "website", "http://toom.sourceforge.net/",
 324                 NULL);
 325 }
 326
 327 int load_archive(const char *path)
 328 {
 329         gchar *basename;
 330         GtkTreeIter iter1, iter2;
 331         unsigned nfiles;
 332         LBX *lbx;
 333
 334         lbx = lbx_fopen(path);
 335         if (!lbx)
 336                 return -1;
 337
 338         basename = g_path_get_basename(path);
 339         gtk_tree_store_append(archives, &iter1, NULL);
 340         gtk_tree_store_set(archives, &iter1,
 341                 0, basename,
 342                 1, (gpointer)lbx,
 343                 -1);
 344         g_free(basename);
 345
 346         nfiles = lbx_numfiles(lbx);
 347         for (unsigned i = 0; i < nfiles; i++) {
 348                 struct lbx_statbuf stat;
 349
 350                 lbx_stat(lbx, i, &stat);
 351                 gtk_tree_store_append(archives, &iter2, &iter1);
 352                 gtk_tree_store_set(archives, &iter2,
 353                         0, stat.name,
 354                         1, (gpointer)lbx,
 355                         2, (guint)i,
 356                         -1);
 357         }
 358
 359         return 0;
 360 }
 361
 362 void load_error(const char *name, GtkWindow *window)
 363 {
 364         GtkWidget *dialog;
 365
 366         dialog = gtk_message_dialog_new(window,
 367                 GTK_DIALOG_MODAL,
 368                 GTK_MESSAGE_ERROR,
 369                 GTK_BUTTONS_OK,
 370                 "Failed to open %s.  Decent error messages coming eventually.",
 371                 name);
 372         gtk_dialog_run(GTK_DIALOG(dialog));
 373         gtk_widget_destroy(dialog);
 374 }
 375
 376 void open_archive(GtkWidget *widget)
 377 {
 378         GtkWindow *window = GTK_WINDOW(gtk_widget_get_toplevel(widget));
 379         GtkFileFilter *lbxfilter, *allfilter;
 380         GtkFileChooser *chooser;
 381         GtkTreeIter iter;
 382
 383         chooser = GTK_FILE_CHOOSER(gtk_file_chooser_dialog_new(
 384                 "Load Archive",
 385                 window,
 386                 GTK_FILE_CHOOSER_ACTION_OPEN,
 387                 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 388                 GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 389                 NULL));
 390
 391         lbxfilter = gtk_file_filter_new();
 392         gtk_file_filter_set_name(lbxfilter, "LBX Archives (*.lbx)");
 393         gtk_file_filter_add_pattern(lbxfilter, "*.lbx");
 394         gtk_file_filter_add_pattern(lbxfilter, "*.LBX");
 395
 396         allfilter = gtk_file_filter_new();
 397         gtk_file_filter_set_name(allfilter, "All Files");
 398         gtk_file_filter_add_pattern(allfilter, "*");
 399
 400         gtk_file_chooser_add_filter(chooser, lbxfilter);
 401         gtk_file_chooser_add_filter(chooser, allfilter);
 402
 403         while (gtk_dialog_run(GTK_DIALOG(chooser)) == GTK_RESPONSE_ACCEPT) {
 404                 gchar *name = gtk_file_chooser_get_filename(chooser);
 405
 406                 if (load_archive(name) == 0) {
 407                         g_free(name);
 408                         break;
 409                 }
 410
 411                 load_error(name, GTK_WINDOW(chooser));
 412                 g_free(name);
 413         }
 414
 415         gtk_widget_destroy(GTK_WIDGET(chooser));
 416 }
 417
 418 static void interface_init(void)
 419 {
 420         GtkTreeViewColumn *column;
 421         GtkCellRenderer *renderer;
 422         GtkComboBox *combo;
 423         GtkTreeView *tree;
 424
 425         renderer = gtk_cell_renderer_text_new();
 426         column = gtk_tree_view_column_new();
 427         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 428         gtk_tree_view_column_add_attribute(column, renderer, "text", 0);
 429
 430         tree = GTK_TREE_VIEW(gtk_builder_get_object(builder, "treeview"));
 431         gtk_tree_view_set_model(tree, GTK_TREE_MODEL(archives));
 432         gtk_tree_view_append_column(tree, column);
 433
 434         combo = GTK_COMBO_BOX(gtk_builder_get_object(builder, "palettechooser"));
 435         gtk_combo_box_set_model(combo, GTK_TREE_MODEL(archives));
 436         gtk_combo_box_entry_set_text_column(GTK_COMBO_BOX_ENTRY(combo), 0);
 437
 438         combo = GTK_COMBO_BOX(gtk_builder_get_object(builder, "imagechooser"));
 439         gtk_combo_box_set_model(combo, GTK_TREE_MODEL(archives));
 440         gtk_combo_box_entry_set_text_column(GTK_COMBO_BOX_ENTRY(combo), 0);
 441
 442         combo = GTK_COMBO_BOX(gtk_builder_get_object(builder, "overchooser"));
 443         gtk_combo_box_set_model(combo, GTK_TREE_MODEL(archives));
 444         gtk_combo_box_entry_set_text_column(GTK_COMBO_BOX_ENTRY(combo), 0);
 445 }
 446
 447 GdkBitmap *init_bg(GdkDrawable *drawable, GdkGC *gc)
 448 {
 449         GdkColor fg = { .red = 0x6666, .green = 0x6666, .blue = 0x6666 };
 450         GdkColor bg = { .red = 0x9999, .green = 0x9999, .blue = 0x9999 };
 451         GdkBitmap *bitmap;
 452
 453         bitmap = gdk_bitmap_create_from_data(drawable, bg_bits,
 454                 bg_width, bg_height);
 455
 456         gdk_gc_set_rgb_fg_color(gc, &fg);
 457         gdk_gc_set_rgb_bg_color(gc, &bg);
 458         gdk_gc_set_fill(gc, GDK_OPAQUE_STIPPLED);
 459         gdk_gc_set_stipple(gc, bitmap);
 460         gdk_gc_set_ts_origin(gc, 0, 0);
 461         return bitmap;
 462 }
 463
 464 int main(int argc, char **argv)
 465 {
 466         GtkWidget *window;
 467         GError *err = NULL;
 468
 469         if (!gtk_init_with_args(&argc, &argv, NULL, NULL, NULL, &err)) {
 470                 fprintf(stderr, "%s\n", err->message);
 471                 return EXIT_FAILURE;
 472         }
 473
 474         archives = gtk_tree_store_new(3,
 475                 G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_UINT);
 476         while (*argv)
 477                 load_archive(*argv++);
 478
 479         builder = gtk_builder_new();
 480         if (!gtk_builder_add_from_file(builder, "src/gui/lbxgui.glade", &err)) {
 481                 fprintf(stderr, "%s\n", err->message);
 482                 return EXIT_FAILURE;
 483         }
 484
 485         window = GTK_WIDGET(gtk_builder_get_object(builder, "mainwindow"));
 486         canvas = GTK_WIDGET(gtk_builder_get_object(builder, "canvas"));
 487
 488         interface_init();
 489         gtk_builder_connect_signals(builder, window);
 490
 491         g_timeout_add(10, timeout, NULL);
 492         gtk_widget_show_all(window);
 493
 494         bg_gc = gdk_gc_new(canvas->window);
 495         init_bg(canvas->window, bg_gc);
 496         gtk_main();
 497 }