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