src/gui/lbxgui.c

   1 #include <config.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <gtk/gtk.h>
   5
   6 #include "lbx.h"
   7 #include "image.h"
   8
   9 static GtkTreeStore *archives;
  10 static GtkBuilder *builder;
  11
  12 static GtkWidget *canvas;
  13 static LBX_IMG *image;
  14
  15 /* LBX images can have up to three palettes, with each superseding the last. */
  16 static struct lbx_colour palette_external[256];
  17 static struct lbx_colour palette_internal[256];
  18 static struct lbx_colour palette_override[256];
  19
  20 GdkPixbuf *framebuf;
  21
  22 static void get_colour(unsigned char index, unsigned char out[static 3])
  23 {
  24         struct lbx_colour *colour;
  25
  26         if (palette_override[index].active)
  27                 colour = palette_override + index;
  28         else if (palette_internal[index].active)
  29                 colour = palette_internal + index;
  30         else if (palette_external[index].active)
  31                 colour = palette_external + index;
  32         else
  33                 colour = &(struct lbx_colour) { .red = 0xff, .blue = 0xff };
  34
  35         out[0] = colour->red;
  36         out[1] = colour->green;
  37         out[2] = colour->blue;
  38 }
  39
  40 static int render_frame(LBX_IMG *img, GdkPixbuf *buf, unsigned frame)
  41 {
  42         unsigned char **imgdata, **imgmask;
  43         struct lbx_imginfo info;
  44         unsigned char *data;
  45         unsigned stride;
  46
  47         lbximg_getinfo(image, &info);
  48         imgdata = lbximg_getframe(image, frame);
  49         if (!imgdata) {
  50                 printf("failed to decode frame %u\n", frame);
  51                 return -1;
  52         }
  53         imgmask = lbximg_getmask(image);
  54
  55         data   = gdk_pixbuf_get_pixels(buf);
  56         stride = gdk_pixbuf_get_rowstride(buf);
  57
  58         for (unsigned i = 0; i < info.height; i++) {
  59                 unsigned char (*p)[3] = (void *)(data + i*stride);
  60
  61                 for (unsigned j = 0; j < info.width; j++) {
  62                         if (imgmask[i][j]) {
  63                                 get_colour(imgdata[i][j], p[j]);
  64                         } else {
  65                                 p[j][0] = 0;
  66                                 p[j][1] = 0;
  67                                 p[j][2] = 0;
  68                         }
  69                 }
  70         }
  71
  72         return 0;
  73 }
  74
  75 void set_frame(GtkSpinButton *spin, gpointer data)
  76 {
  77         unsigned frame = gtk_spin_button_get_value_as_int(spin);
  78
  79         render_frame(image, framebuf, frame);
  80         gdk_window_invalidate_rect(canvas->window, NULL, FALSE);
  81 }
  82
  83 gboolean canvas_expose(GtkWidget *canvas, GdkEventExpose *event, gpointer data)
  84 {
  85         if (!framebuf)
  86                 return TRUE;
  87
  88         gdk_draw_pixbuf(canvas->window, NULL, framebuf,
  89                 event->area.x, event->area.y, event->area.x, event->area.y,
  90                 event->area.width, event->area.height,
  91                 GDK_RGB_DITHER_NORMAL, 0, 0);
  92
  93         return TRUE;
  94 }
  95
  96 static int init_framedata(void)
  97 {
  98         struct lbx_imginfo info;
  99         GtkSpinButton *spin;
 100
 101         lbximg_getinfo(image, &info);
 102         framebuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
 103                 info.width, info.height);
 104         if (!framebuf) {
 105                 printf("failed to allocate pixbuf\n");
 106                 return -1;
 107         }
 108
 109         gtk_widget_set_size_request(canvas, info.width, info.height);
 110
 111         spin = GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "framespin"));
 112         gtk_spin_button_set_range(spin, 0, info.nframes-1);
 113         gtk_spin_button_set_value(spin, 0);
 114         set_frame(spin, NULL);
 115         return 0;
 116 }
 117
 118 static int img_close(void *handle)
 119 {
 120         lbx_file_close(handle);
 121         return 0;
 122 }
 123
 124 void set_image_data(GtkComboBox *combo)
 125 {
 126         GtkTreeIter iter;
 127         gpointer lbx;
 128         guint    index;
 129         LBXfile  *f;
 130
 131         if (!gtk_combo_box_get_active_iter(combo, &iter))
 132                 return;
 133
 134         gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
 135                 1, &lbx,
 136                 2, &index,
 137                 -1);
 138
 139         f = lbx_file_open(lbx, index);
 140         if (f) {
 141                 struct lbx_imginfo info;
 142
 143                 image = lbximg_open(f, &lbx_arch_fops, img_close);
 144                 if (image) {
 145                         memset(palette_internal, 0, sizeof palette_internal);
 146                         if (lbximg_getpalette(image, palette_internal) == -1) {
 147                                 puts("crap");
 148                                 lbximg_close(image);
 149                         }
 150
 151                         if (init_framedata() == -1) {
 152                                 puts("crap");
 153                                 lbximg_close(image);
 154                         }
 155                 } else {
 156                         puts("fuck");
 157                         lbx_file_close(f);
 158                 }
 159         } else {
 160                 puts("damn");
 161         }
 162 }
 163
 164 void show_about(GtkWidget *widget)
 165 {
 166         GtkWindow *parent = GTK_WINDOW(gtk_widget_get_toplevel(widget));
 167
 168         gtk_show_about_dialog(parent,
 169                 "name", g_get_application_name(),
 170                 "version", PACKAGE_VERSION,
 171                 "copyright", "Copyright \xc2\xa9 2010 Nick Bowler",
 172                 "website", "http://toom.sourceforge.net/",
 173                 NULL);
 174 }
 175
 176 int load_archive(const char *path)
 177 {
 178         gchar *basename;
 179         GtkTreeIter iter1, iter2;
 180         unsigned nfiles;
 181         LBX *lbx;
 182
 183         lbx = lbx_fopen(path);
 184         if (!lbx)
 185                 return -1;
 186
 187         basename = g_path_get_basename(path);
 188         gtk_tree_store_append(archives, &iter1, NULL);
 189         gtk_tree_store_set(archives, &iter1,
 190                 0, basename,
 191                 1, (gpointer)lbx,
 192                 -1);
 193         g_free(basename);
 194
 195         nfiles = lbx_numfiles(lbx);
 196         for (unsigned i = 0; i < nfiles; i++) {
 197                 struct lbx_statbuf stat;
 198
 199                 lbx_stat(lbx, i, &stat);
 200                 gtk_tree_store_append(archives, &iter2, &iter1);
 201                 gtk_tree_store_set(archives, &iter2,
 202                         0, stat.name,
 203                         1, (gpointer)lbx,
 204                         2, (guint)i,
 205                         -1);
 206         }
 207
 208         return 0;
 209 }
 210
 211 void load_error(const char *name, GtkWindow *window)
 212 {
 213         GtkWidget *dialog;
 214
 215         dialog = gtk_message_dialog_new(window,
 216                 GTK_DIALOG_MODAL,
 217                 GTK_MESSAGE_ERROR,
 218                 GTK_BUTTONS_OK,
 219                 "Failed to open %s.  Decent error messages coming eventually.",
 220                 name);
 221         gtk_dialog_run(GTK_DIALOG(dialog));
 222         gtk_widget_destroy(dialog);
 223 }
 224
 225 void open_archive(GtkWidget *widget)
 226 {
 227         GtkWindow *window = GTK_WINDOW(gtk_widget_get_toplevel(widget));
 228         GtkFileFilter *lbxfilter, *allfilter;
 229         GtkFileChooser *chooser;
 230         GtkTreeIter iter;
 231
 232         chooser = GTK_FILE_CHOOSER(gtk_file_chooser_dialog_new(
 233                 "Load Archive",
 234                 window,
 235                 GTK_FILE_CHOOSER_ACTION_OPEN,
 236                 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 237                 GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 238                 NULL));
 239
 240         lbxfilter = gtk_file_filter_new();
 241         gtk_file_filter_set_name(lbxfilter, "LBX Archives (*.lbx)");
 242         gtk_file_filter_add_pattern(lbxfilter, "*.lbx");
 243
 244         allfilter = gtk_file_filter_new();
 245         gtk_file_filter_set_name(allfilter, "All Files");
 246         gtk_file_filter_add_pattern(allfilter, "*");
 247
 248         gtk_file_chooser_add_filter(chooser, lbxfilter);
 249         gtk_file_chooser_add_filter(chooser, allfilter);
 250
 251         while (gtk_dialog_run(GTK_DIALOG(chooser)) == GTK_RESPONSE_ACCEPT) {
 252                 gchar *name = gtk_file_chooser_get_filename(chooser);
 253
 254                 if (load_archive(name) == 0) {
 255                         g_free(name);
 256                         break;
 257                 }
 258
 259                 load_error(name, GTK_WINDOW(chooser));
 260                 g_free(name);
 261         }
 262
 263         gtk_widget_destroy(GTK_WIDGET(chooser));
 264 }
 265
 266 static void interface_init(void)
 267 {
 268         GtkTreeViewColumn *column;
 269         GtkCellRenderer *renderer;
 270         GtkComboBox *combo;
 271         GtkTreeView *tree;
 272
 273         renderer = gtk_cell_renderer_text_new();
 274         column = gtk_tree_view_column_new();
 275         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 276         gtk_tree_view_column_add_attribute(column, renderer, "text", 0);
 277
 278         tree = GTK_TREE_VIEW(gtk_builder_get_object(builder, "treeview"));
 279         gtk_tree_view_set_model(tree, GTK_TREE_MODEL(archives));
 280         gtk_tree_view_append_column(tree, column);
 281
 282         combo = GTK_COMBO_BOX(gtk_builder_get_object(builder, "imagechooser"));
 283         gtk_combo_box_set_model(combo, GTK_TREE_MODEL(archives));
 284         gtk_combo_box_entry_set_text_column(GTK_COMBO_BOX_ENTRY(combo), 0);
 285 }
 286
 287 int main(int argc, char **argv)
 288 {
 289         GtkWidget *window;
 290         GError *err = NULL;
 291
 292         if (!gtk_init_with_args(&argc, &argv, NULL, NULL, NULL, &err)) {
 293                 fprintf(stderr, "%s\n", err->message);
 294                 return EXIT_FAILURE;
 295         }
 296
 297         archives = gtk_tree_store_new(3,
 298                 G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_UINT);
 299         while (*argv)
 300                 load_archive(*argv++);
 301
 302         builder = gtk_builder_new();
 303         if (!gtk_builder_add_from_file(builder, "src/gui/lbxgui.glade", &err)) {
 304                 fprintf(stderr, "%s\n", err->message);
 305                 return EXIT_FAILURE;
 306         }
 307
 308         window = GTK_WIDGET(gtk_builder_get_object(builder, "mainwindow"));
 309         canvas = GTK_WIDGET(gtk_builder_get_object(builder, "canvas"));
 310
 311         interface_init();
 312         gtk_builder_connect_signals(builder, window);
 313         gtk_widget_show_all(window);
 314         gtk_main();
 315 }