[Extractor-gtk-cvslog] SF.net SVN: extractor-gtk: [69] trunk/extractor/extractor.c

[<som...@us...>]

Revision: 69
          http://extractor-gtk.svn.sourceforge.net/extractor-gtk/?rev=69&view=rev
Author:   someone-guy
Date:     2008-03-05 12:28:53 -0800 (Wed, 05 Mar 2008)

Log Message:
-----------
Add (slightly ugly) image preview code.

Modified Paths:
--------------
    trunk/extractor/extractor.c

Modified: trunk/extractor/extractor.c
===================================================================
--- trunk/extractor/extractor.c	2008-03-05 20:28:46 UTC (rev 68)
+++ trunk/extractor/extractor.c	2008-03-05 20:28:53 UTC (rev 69)
@@ -191,9 +191,54 @@
   return FALSE;
 }
 
+#define MAX_IMG_SZ (100*1024*1024)
+
+/**
+ * Called when user double-clicks on a archive content
+ */
+static void row_activate(GtkTreeView *treeview, GtkTreePath *path,
+                         GtkTreeViewColumn *col, gpointer data) {
+  GtkTreeModel *model = gtk_tree_view_get_model(treeview);
+  GtkTreeIter iter;
+  GtkWidget *preview_win = data;
+  file_t *file;
+  FILE *tmpf;
+  int size;
+  uint8_t *tmpdata;
+  GdkPixbufLoader *pbl;
+  GdkPixbuf *pb;
+  GtkWidget *img = gtk_bin_get_child(GTK_BIN(preview_win));
+  if (img)
+    gtk_container_remove(GTK_CONTAINER(preview_win), img);
+
+  if (!gtk_tree_model_get_iter(model, &iter, path))
+    return;
+  gtk_tree_model_get(model, &iter, PTR_COL, &file, -1);
+  tmpf = tmpfile();
+  cur_fmt->extract_file(input_file, file, tmpf);
+  fseek(tmpf, 0, SEEK_END);
+  size = ftell(tmpf);
+  if (size > MAX_IMG_SZ) size = MAX_IMG_SZ;
+  rewind(tmpf);
+  tmpdata = malloc(size);
+  fread(tmpdata, 1, size, tmpf);
+  fclose(tmpf);
+  pbl = gdk_pixbuf_loader_new();
+  gdk_pixbuf_loader_write(pbl, tmpdata, size, NULL);
+  free(tmpdata);
+  gdk_pixbuf_loader_close(pbl, NULL);
+  pb = gdk_pixbuf_loader_get_pixbuf(pbl);
+  img = gtk_image_new_from_pixbuf(pb);
+  g_object_unref(pbl);
+  gtk_container_add(GTK_CONTAINER(preview_win), img);
+  gtk_widget_show(img);
+  gtk_window_present(GTK_WINDOW(preview_win));
+}
+
 int main(int argc, char *argv[]) {
   int i;
   GtkWidget *window;
+  GtkWidget *preview_win;
   GtkWidget *table;
   GtkWidget *file_button;
   GtkWidget *button;
@@ -208,6 +253,11 @@
   gtk_disable_setlocale();
   gtk_init(&argc, &argv);
 
+  preview_win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_resizable(GTK_WINDOW(preview_win), FALSE);
+  g_signal_connect(G_OBJECT(preview_win), "delete_event",
+                   G_CALLBACK(gtk_widget_hide_on_delete), NULL);
+
   window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
   gtk_window_set_title(GTK_WINDOW(window), _("extractor"));
   g_signal_connect(G_OBJECT(window), "delete_event",
@@ -242,6 +292,8 @@
   gtk_tree_view_append_column(GTK_TREE_VIEW(treeview), column);
   selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
   gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
+  g_signal_connect(G_OBJECT(treeview), "row-activated",
+                   G_CALLBACK(row_activate), preview_win);
   gtk_container_add(GTK_CONTAINER(scrollwin), treeview);
 
   row++;


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