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                 gtk_widget_set_size_request(canvas, -1, -1);
 208                 g_object_unref(framebuf);
 209                 framebuf = NULL;
 210         }
 211
 212         memset(palette_internal, 0, sizeof palette_internal);
 213         lbx_file_close(handle);
 214         return 0;
 215 }
 216
 217 void set_override_data(GtkComboBox *combo)
 218 {
 219         GtkTreeIter iter;
 220         gpointer lbx;
 221         guint    index;
 222         LBXfile  *f;
 223         LBX_IMG  *img;
 224
 225         memset(palette_override, 0, sizeof palette_override);
 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                 img = lbximg_open(f, &lbx_arch_fops, NULL);
 237                 if (img) {
 238                         memset(palette_override, 0, sizeof palette_override);
 239                         lbximg_getpalette(img, palette_override);
 240                         lbximg_close(img);
 241                         init_framedata(0);
 242                 }
 243
 244                 lbx_file_close(f);
 245         } else {
 246                 puts("damn");
 247         }
 248 }
 249
 250 void set_palette_data(GtkComboBox *combo)
 251 {
 252         GtkTreeIter iter;
 253         gpointer lbx;
 254         guint    index;
 255         LBXfile  *f;
 256
 257         memset(palette_external, 0, sizeof palette_external);
 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         f = lbx_file_open(lbx, index);
 267         if (f) {
 268                 if (lbximg_loadpalette(f, &lbx_arch_fops, palette_external))
 269                         memset(palette_external, 0, sizeof palette_external);
 270                 lbx_file_close(f);
 271         }
 272
 273         init_framedata(0);
 274 }
 275
 276 void set_image_data(GtkComboBox *combo)
 277 {
 278         GtkTreeIter iter;
 279         gpointer lbx;
 280         guint    index;
 281         LBXfile  *f;
 282
 283         if (image) {
 284                 lbximg_close(image);
 285                 image = NULL;
 286         }
 287
 288         if (!gtk_combo_box_get_active_iter(combo, &iter))
 289                 return;
 290
 291         gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
 292                 1, &lbx,
 293                 2, &index,
 294                 -1);
 295
 296         f = lbx_file_open(lbx, index);
 297         if (f) {
 298                 image = lbximg_open(f, &lbx_arch_fops, img_close);
 299                 if (image) {
 300                         if (lbximg_getpalette(image, palette_internal) == -1) {
 301                                 puts("crap");
 302                                 lbximg_close(image);
 303                         }
 304
 305                         if (init_framedata(1) == -1) {
 306                                 puts("crap");
 307                                 lbximg_close(image);
 308                         }
 309                 } else {
 310                         puts("fuck");
 311                         lbx_file_close(f);
 312                 }
 313         } else {
 314                 puts("damn");
 315         }
 316 }
 317
 318 void show_about(GtkWidget *widget)
 319 {
 320         GtkWindow *parent = GTK_WINDOW(gtk_widget_get_toplevel(widget));
 321
 322         gtk_show_about_dialog(parent,
 323                 "name", g_get_application_name(),
 324                 "version", PACKAGE_VERSION,
 325                 "copyright", "Copyright \xc2\xa9 2010 Nick Bowler",
 326                 "website", "http://toom.sourceforge.net/",
 327                 NULL);
 328 }
 329
 330 int load_archive(const char *path)
 331 {
 332         gchar *basename;
 333         GtkTreeIter iter1, iter2;
 334         unsigned nfiles;
 335         LBX *lbx;
 336
 337         lbx = lbx_fopen(path);
 338         if (!lbx)
 339                 return -1;
 340
 341         basename = g_path_get_basename(path);
 342         gtk_tree_store_append(archives, &iter1, NULL);
 343         gtk_tree_store_set(archives, &iter1,
 344                 0, basename,
 345                 1, (gpointer)lbx,
 346                 -1);
 347         g_free(basename);
 348
 349         nfiles = lbx_numfiles(lbx);
 350         for (unsigned i = 0; i < nfiles; i++) {
 351                 struct lbx_statbuf stat;
 352
 353                 lbx_stat(lbx, i, &stat);
 354                 gtk_tree_store_append(archives, &iter2, &iter1);
 355                 gtk_tree_store_set(archives, &iter2,
 356                         0, stat.name,
 357                         1, (gpointer)lbx,
 358                         2, (guint)i,
 359                         -1);
 360         }
 361
 362         return 0;
 363 }
 364
 365 void load_error(const char *name, GtkWindow *window)
 366 {
 367         GtkWidget *dialog;
 368
 369         dialog = gtk_message_dialog_new(window,
 370                 GTK_DIALOG_MODAL,
 371                 GTK_MESSAGE_ERROR,
 372                 GTK_BUTTONS_OK,
 373                 "Failed to open %s.  Decent error messages coming eventually.",
 374                 name);
 375         gtk_dialog_run(GTK_DIALOG(dialog));
 376         gtk_widget_destroy(dialog);
 377 }
 378
 379 void open_archive(GtkWidget *widget)
 380 {
 381         GtkWindow *window = GTK_WINDOW(gtk_widget_get_toplevel(widget));
 382         GtkFileFilter *lbxfilter, *allfilter;
 383         GtkFileChooser *chooser;
 384         GtkTreeIter iter;
 385
 386         chooser = GTK_FILE_CHOOSER(gtk_file_chooser_dialog_new(
 387                 "Load Archive",
 388                 window,
 389                 GTK_FILE_CHOOSER_ACTION_OPEN,
 390                 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 391                 GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 392                 NULL));
 393
 394         lbxfilter = gtk_file_filter_new();
 395         gtk_file_filter_set_name(lbxfilter, "LBX Archives (*.lbx)");
 396         gtk_file_filter_add_pattern(lbxfilter, "*.lbx");
 397         gtk_file_filter_add_pattern(lbxfilter, "*.LBX");
 398
 399         allfilter = gtk_file_filter_new();
 400         gtk_file_filter_set_name(allfilter, "All Files");
 401         gtk_file_filter_add_pattern(allfilter, "*");
 402
 403         gtk_file_chooser_add_filter(chooser, lbxfilter);
 404         gtk_file_chooser_add_filter(chooser, allfilter);
 405
 406         while (gtk_dialog_run(GTK_DIALOG(chooser)) == GTK_RESPONSE_ACCEPT) {
 407                 gchar *name = gtk_file_chooser_get_filename(chooser);
 408
 409                 if (load_archive(name) == 0) {
 410                         g_free(name);
 411                         break;
 412                 }
 413
 414                 load_error(name, GTK_WINDOW(chooser));
 415                 g_free(name);
 416         }
 417
 418         gtk_widget_destroy(GTK_WIDGET(chooser));
 419 }
 420
 421 static void clear_combobox(GtkEntry *entry, GtkEntryIconPosition pos,
 422                            GdkEvent *event, gpointer data)
 423 {
 424         GtkComboBox *combo = data;
 425
 426         gtk_entry_set_text(entry, "");
 427         gtk_combo_box_set_active(combo, -1);
 428         init_framedata(0);
 429 }
 430
 431 static void init_combobox(GtkBuilder *builder, const char *name)
 432 {
 433         GtkComboBox *combo;
 434         GtkEntry *entry;
 435
 436         combo = GTK_COMBO_BOX(gtk_builder_get_object(builder, name));
 437         gtk_combo_box_set_model(combo, GTK_TREE_MODEL(archives));
 438         gtk_combo_box_entry_set_text_column(GTK_COMBO_BOX_ENTRY(combo), 0);
 439
 440         entry = GTK_ENTRY(gtk_bin_get_child(GTK_BIN(combo)));
 441         g_signal_connect(G_OBJECT(entry), "icon-press",
 442                 G_CALLBACK(clear_combobox), combo);
 443         gtk_entry_set_icon_from_stock(entry, GTK_ENTRY_ICON_SECONDARY,
 444                 GTK_STOCK_CLEAR);
 445 }
 446
 447 static void interface_init(void)
 448 {
 449         GtkTreeViewColumn *column;
 450         GtkCellRenderer *renderer;
 451         GtkTreeView *tree;
 452
 453         renderer = gtk_cell_renderer_text_new();
 454         column = gtk_tree_view_column_new();
 455         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 456         gtk_tree_view_column_add_attribute(column, renderer, "text", 0);
 457
 458         tree = GTK_TREE_VIEW(gtk_builder_get_object(builder, "treeview"));
 459         gtk_tree_view_set_model(tree, GTK_TREE_MODEL(archives));
 460         gtk_tree_view_append_column(tree, column);
 461
 462         init_combobox(builder, "palettechooser");
 463         init_combobox(builder, "imagechooser");
 464         init_combobox(builder, "overchooser");
 465 }
 466
 467 GdkBitmap *init_bg(GdkDrawable *drawable, GdkGC *gc)
 468 {
 469         GdkColor fg = { .red = 0x6666, .green = 0x6666, .blue = 0x6666 };
 470         GdkColor bg = { .red = 0x9999, .green = 0x9999, .blue = 0x9999 };
 471         GdkBitmap *bitmap;
 472
 473         bitmap = gdk_bitmap_create_from_data(drawable, bg_bits,
 474                 bg_width, bg_height);
 475
 476         gdk_gc_set_rgb_fg_color(gc, &fg);
 477         gdk_gc_set_rgb_bg_color(gc, &bg);
 478         gdk_gc_set_fill(gc, GDK_OPAQUE_STIPPLED);
 479         gdk_gc_set_stipple(gc, bitmap);
 480         gdk_gc_set_ts_origin(gc, 0, 0);
 481         return bitmap;
 482 }
 483
 484 int main(int argc, char **argv)
 485 {
 486         GtkWidget *window;
 487         GError *err = NULL;
 488
 489         if (!gtk_init_with_args(&argc, &argv, NULL, NULL, NULL, &err)) {
 490                 fprintf(stderr, "%s\n", err->message);
 491                 return EXIT_FAILURE;
 492         }
 493
 494         archives = gtk_tree_store_new(3,
 495                 G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_UINT);
 496         while (*argv)
 497                 load_archive(*argv++);
 498
 499         builder = gtk_builder_new();
 500         if (!gtk_builder_add_from_file(builder, "src/gui/lbxgui.glade", &err)) {
 501                 fprintf(stderr, "%s\n", err->message);
 502                 return EXIT_FAILURE;
 503         }
 504
 505         window = GTK_WIDGET(gtk_builder_get_object(builder, "mainwindow"));
 506         canvas = GTK_WIDGET(gtk_builder_get_object(builder, "canvas"));
 507
 508         interface_init();
 509         gtk_builder_connect_signals(builder, window);
 510
 511         g_timeout_add(10, timeout, NULL);
 512         gtk_widget_show_all(window);
 513
 514         bg_gc = gdk_gc_new(canvas->window);
 515         init_bg(canvas->window, bg_gc);
 516         gtk_main();
 517 }