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