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plover-gtk/packagestore.c
author J. Ali Harlow <ali@juiblex.co.uk>
Fri Mar 23 20:29:50 2012 +0000 (2012-03-23)
changeset 22 5cbb66c24fc6
parent 10 8b50be3e2998
child 24 2b9f54d14cc2
permissions -rw-r--r--
Fix confusing error message 
     1 /*

     2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>

     3  * Copyright (C) 2010  J. Ali Harlow <ali@juiblex.co.uk>

     4  *

     5  * This program is free software; you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License as published by

     7  * the Free Software Foundation; either version 2 of the License, or

     8  * (at your option) any later version.

     9  *

    10  * This program is distributed in the hope that it will be useful,

    11  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    13  * GNU General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU General Public License along

    16  * with this program; if not, write to the Free Software Foundation, Inc.,

    17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

    18  */

    19 

    20 #include "config.h"

    21 #include <stdlib.h>

    22 #include <string.h>

    23 #include <glib-object.h>

    24 #include <gtk/gtk.h>

    25 #include <razor.h>

    26 #include "plover/plover.h"

    27 #include "plover-gtk/package.h"

    28 #include "plover-gtk/packagestore.h"

    29 

    30 #define VALID_ITER(iter,store) ((iter) && (iter)->user_data && \

    31 	PLOVER_PACKAGE_STORE_GET_PRIVATE(store)->stamp==(iter)->stamp && \

    32 	!g_sequence_iter_is_end((iter)->user_data) && \

    33 	g_sequence_iter_get_sequence((iter)->user_data)== \

    34 	PLOVER_PACKAGE_STORE_GET_PRIVATE(store)->seq)

    35 

    36 static GType column_types[PLOVER_PACKAGE_STORE_NO_COLUMNS];

    37 

    38 static void plover_package_store_tree_model_init(GtkTreeModelIface *iface);

    39 

    40 G_DEFINE_TYPE_WITH_CODE(PloverPackageStore,plover_package_store,G_TYPE_OBJECT,

    41   G_IMPLEMENT_INTERFACE(GTK_TYPE_TREE_MODEL,

    42   plover_package_store_tree_model_init));

    43 

    44 typedef struct _PloverPackageStorePrivate {

    45     GSList *sets;

    46     GSequence *seq;

    47     int stamp;

    48 } PloverPackageStorePrivate;

    49 

    50 #define PLOVER_PACKAGE_STORE_GET_PRIVATE(obj)\

    51 				G_TYPE_INSTANCE_GET_PRIVATE(obj,\

    52 				  PLOVER_TYPE_PACKAGE_STORE,\

    53 				  PloverPackageStorePrivate)

    54 

    55 static void plover_package_store_finalize(GObject *obj)

    56 {

    57     PloverPackageStorePrivate *priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(obj);

    58     g_sequence_free(priv->seq);

    59     if (G_OBJECT_CLASS(plover_package_store_parent_class)->finalize)

    60 	G_OBJECT_CLASS(plover_package_store_parent_class)->finalize(obj);

    61 }

    62 

    63 static void plover_package_store_dispose(GObject *obj)

    64 {

    65     PloverPackageStorePrivate *priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(obj);

    66     g_slist_foreach(priv->sets,(GFunc)g_object_unref,NULL);

    67     g_slist_free(priv->sets);

    68     priv->sets=NULL;

    69     g_sequence_free(priv->seq);

    70     priv->seq=g_sequence_new(NULL);

    71     if (G_OBJECT_CLASS(plover_package_store_parent_class)->dispose)

    72 	G_OBJECT_CLASS(plover_package_store_parent_class)->dispose(obj);

    73 }

    74 

    75 static void plover_package_store_class_init(PloverPackageStoreClass *klass)

    76 {

    77     GObjectClass *oclass=G_OBJECT_CLASS(klass);

    78     oclass->finalize=plover_package_store_finalize;

    79     oclass->dispose=plover_package_store_dispose;

    80     g_type_class_add_private(klass,sizeof(PloverPackageStorePrivate));

    81     column_types[PLOVER_PACKAGE_STORE_OBJ_COLUMN]=PLOVER_TYPE_PACKAGE;

    82     column_types[PLOVER_PACKAGE_STORE_INSTALLED_COLUMN]=G_TYPE_BOOLEAN;

    83     column_types[PLOVER_PACKAGE_STORE_ICON_COLUMN]=GDK_TYPE_PIXBUF;

    84     column_types[PLOVER_PACKAGE_STORE_NAME_COLUMN]=G_TYPE_STRING;

    85     column_types[PLOVER_PACKAGE_STORE_VERSION_COLUMN]=G_TYPE_STRING;

    86     column_types[PLOVER_PACKAGE_STORE_SUMMARY_COLUMN]=G_TYPE_STRING;

    87 }

    88 

    89 static GtkTreeModelFlags

    90 plover_package_store_get_flags(GtkTreeModel *tree_model)

    91 {

    92     return GTK_TREE_MODEL_ITERS_PERSIST|GTK_TREE_MODEL_LIST_ONLY;

    93 }

    94 

    95 static gint plover_package_store_get_n_columns(GtkTreeModel *tree_model)

    96 {

    97     return PLOVER_PACKAGE_STORE_NO_COLUMNS;

    98 }

    99 

   100 static GType

   101   plover_package_store_get_column_type(GtkTreeModel *tree_model,gint indx)

   102 {

   103     g_return_val_if_fail(indx>=0 && indx<PLOVER_PACKAGE_STORE_NO_COLUMNS,

   104       G_TYPE_INVALID);

   105     return column_types[indx];

   106 }

   107 

   108 static gboolean plover_package_store_get_iter(GtkTreeModel *tree_model,

   109   GtkTreeIter *iter,GtkTreePath *path)

   110 {

   111     int i;

   112     PloverPackageStorePrivate *priv;

   113     PloverPackageStore *store=(PloverPackageStore *)tree_model;

   114     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(store);

   115     i=gtk_tree_path_get_indices(path)[0];

   116     if (i>=g_sequence_get_length(priv->seq))

   117 	return FALSE;

   118     iter->stamp=priv->stamp;

   119     iter->user_data=g_sequence_get_iter_at_pos(priv->seq,i);

   120     return TRUE;

   121 }

   122 

   123 static GtkTreePath *

   124   plover_package_store_get_path(GtkTreeModel *tree_model,GtkTreeIter *iter)

   125 {

   126     GtkTreePath *path;

   127     g_return_val_if_fail(VALID_ITER(iter,tree_model),NULL);

   128     if (g_sequence_iter_is_end(iter->user_data))

   129 	return NULL;

   130     path=gtk_tree_path_new();

   131     gtk_tree_path_append_index(path,

   132       g_sequence_iter_get_position(iter->user_data));

   133     return path;

   134 }

   135 

   136 static void plover_package_store_get_value(GtkTreeModel *tree_model,

   137   GtkTreeIter *iter,gint column,GValue *value)

   138 {

   139     char *s;

   140     PloverPackageStore *store=(PloverPackageStore *)tree_model;

   141     PloverPackage *package;

   142     g_return_if_fail(column>=0 && column<PLOVER_PACKAGE_STORE_NO_COLUMNS);

   143     g_return_if_fail(VALID_ITER(iter,store));

   144     package=PLOVER_PACKAGE(g_sequence_get(iter->user_data));

   145     g_value_init(value,column_types[column]);

   146     switch((PloverPackageStoreColumn)column)

   147     {

   148 	case PLOVER_PACKAGE_STORE_OBJ_COLUMN:

   149 	    g_value_set_object(value,package);

   150 	    break;

   151 	case PLOVER_PACKAGE_STORE_INSTALLED_COLUMN:

   152 	    break;

   153 	case PLOVER_PACKAGE_STORE_ICON_COLUMN:

   154 	    g_value_set_object(value,plover_package_get_icon(package));

   155 	    break;

   156 	case PLOVER_PACKAGE_STORE_NAME_COLUMN:

   157 	    g_value_set_string(value,plover_package_get_name(package));

   158 	    break;

   159 	case PLOVER_PACKAGE_STORE_VERSION_COLUMN:

   160 	    g_value_set_string(value,plover_package_get_version(package));

   161 	    break;

   162 	case PLOVER_PACKAGE_STORE_SUMMARY_COLUMN:

   163 	    s=plover_package_get_summary(package);

   164 	    if (*s)

   165 		g_value_set_string(value,s);

   166 	    else

   167 	    {

   168 		s=g_strconcat("The ",plover_package_get_name(package),

   169 		  " package",NULL);

   170 		g_value_set_string(value,s);

   171 		g_free(s);

   172 	    }

   173 	    break;

   174 	case PLOVER_PACKAGE_STORE_NO_COLUMNS:

   175 	    /* Quieten compiler warning */

   176 	    break;

   177     }

   178 }

   179 

   180 static gboolean

   181   plover_package_store_iter_next(GtkTreeModel *tree_model,GtkTreeIter *iter)

   182 {

   183     g_return_val_if_fail(VALID_ITER(iter,tree_model),FALSE);

   184     iter->user_data=g_sequence_iter_next(iter->user_data);

   185     return !g_sequence_iter_is_end(iter->user_data);

   186 }

   187 

   188 static gboolean plover_package_store_iter_children(GtkTreeModel *tree_model,

   189   GtkTreeIter *iter,GtkTreeIter *parent)

   190 {

   191     PloverPackageStorePrivate *priv;

   192     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(tree_model);

   193     /* this is a list, nodes have no children */

   194     if (parent)

   195 	return FALSE;

   196     if (g_sequence_get_length(priv->seq)>0)

   197     {

   198 	iter->stamp=priv->stamp;

   199 	iter->user_data=g_sequence_get_begin_iter(priv->seq);

   200 	return TRUE;

   201     }

   202     else

   203 	return FALSE;

   204 }

   205 

   206 static gboolean plover_package_store_iter_has_child(GtkTreeModel *tree_model,

   207   GtkTreeIter *iter)

   208 {

   209     return FALSE;

   210 }

   211 

   212 static gint plover_package_store_iter_n_children(GtkTreeModel *tree_model,

   213   GtkTreeIter *iter)

   214 {

   215     PloverPackageStorePrivate *priv;

   216     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(tree_model);

   217     if (!iter)

   218 	return g_sequence_get_length(priv->seq);

   219     g_return_val_if_fail(VALID_ITER(iter,tree_model),-1);

   220     return 0;

   221 }

   222 

   223 static gboolean plover_package_store_iter_nth_child(GtkTreeModel *tree_model,

   224   GtkTreeIter *iter,GtkTreeIter *parent,gint n)

   225 {

   226     PloverPackageStorePrivate *priv;

   227     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(tree_model);

   228     GSequenceIter *child;

   229     if (parent)

   230 	return FALSE;

   231     child=g_sequence_get_iter_at_pos(priv->seq,n);

   232     if (g_sequence_iter_is_end(child))

   233 	return FALSE;

   234     iter->stamp=priv->stamp;

   235     iter->user_data=child;

   236     return TRUE;

   237 }

   238 

   239 static gboolean plover_package_store_iter_parent(GtkTreeModel *tree_model,

   240   GtkTreeIter *iter,GtkTreeIter *child)

   241 {

   242     return FALSE;

   243 }

   244 

   245 static void plover_package_store_tree_model_init(GtkTreeModelIface *iface)

   246 {

   247     iface->get_flags=plover_package_store_get_flags;

   248     iface->get_n_columns=plover_package_store_get_n_columns;

   249     iface->get_column_type=plover_package_store_get_column_type;

   250     iface->get_iter=plover_package_store_get_iter;

   251     iface->get_path=plover_package_store_get_path;

   252     iface->get_value=plover_package_store_get_value;

   253     iface->iter_next=plover_package_store_iter_next;

   254     iface->iter_children=plover_package_store_iter_children;

   255     iface->iter_has_child=plover_package_store_iter_has_child;

   256     iface->iter_n_children=plover_package_store_iter_n_children;

   257     iface->iter_nth_child=plover_package_store_iter_nth_child;

   258     iface->iter_parent=plover_package_store_iter_parent;

   259 }

   260 

   261 static void plover_package_store_init(PloverPackageStore *store)

   262 {

   263     PloverPackageStorePrivate *priv;

   264     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(store);

   265     priv->seq=g_sequence_new(NULL);

   266     priv->stamp=g_random_int();

   267 }

   268 

   269 PloverPackageStore *plover_package_store_new(void)

   270 {

   271     return g_object_new(PLOVER_TYPE_PACKAGE_STORE,NULL);

   272 }

   273 

   274 GSList *plover_package_store_get_sets(PloverPackageStore *store)

   275 {

   276     PloverPackageStorePrivate *priv;

   277     g_return_val_if_fail(PLOVER_IS_PACKAGE_STORE(store),NULL);

   278     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(store);

   279     return priv->sets;

   280 }

   281 

   282 static gint

   283   plover__package_compar(gconstpointer a,gconstpointer b,gpointer user_data)

   284 {

   285     PloverPackage *pa=PLOVER_PACKAGE(a);

   286     PloverPackage *pb=PLOVER_PACKAGE(b);

   287     return strcmp(plover_package_get_name(pa),plover_package_get_name(pb));

   288 }

   289 

   290 void plover_package_store_add_set(PloverPackageStore *store,

   291   PloverPackageSet *set)

   292 {

   293     GSList *packages,*link;

   294     GSequenceIter *si;

   295     GtkTreeIter ti;

   296     GtkTreePath *path;

   297     gint *indices;

   298     PloverPackageStorePrivate *priv;

   299     g_return_if_fail(PLOVER_IS_PACKAGE_STORE(store));

   300     g_return_if_fail(PLOVER_IS_PACKAGE_SET(set));

   301     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(store);

   302     g_return_if_fail(g_slist_find(priv->sets,set) == NULL);

   303     g_object_ref(set);

   304     path=gtk_tree_path_new();

   305     gtk_tree_path_append_index(path,0);

   306     indices=gtk_tree_path_get_indices(path);

   307     packages=plover_package_set_get_packages(set);

   308     for(link=packages;link;link=link->next)

   309     {

   310 	si=g_sequence_insert_sorted(priv->seq,link->data,

   311 	  plover__package_compar,NULL);

   312 	*indices=g_sequence_iter_get_position(si);

   313 	ti.stamp=priv->stamp;

   314 	ti.user_data=si;

   315 	gtk_tree_model_row_inserted(GTK_TREE_MODEL(store),path,&ti);

   316     }

   317     gtk_tree_path_free(path);

   318     priv->sets=g_slist_prepend(priv->sets,set);

   319 }

   320 

   321 void plover_package_store_remove_set(PloverPackageStore *store,

   322   PloverPackageSet *set)

   323 {

   324     GSList *packages,*link;

   325     GSequence *seq;

   326     GSequenceIter *iter,*prev,*remove;

   327     GtkTreePath *path;

   328     gint *indices;

   329     PloverPackageStorePrivate *priv;

   330     g_return_if_fail(PLOVER_IS_PACKAGE_STORE(store));

   331     g_return_if_fail(PLOVER_IS_PACKAGE_SET(set));

   332     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(store);

   333     g_return_if_fail(g_slist_find(priv->sets,set) != NULL);

   334     seq=g_sequence_new(NULL);

   335     path=gtk_tree_path_new();

   336     gtk_tree_path_append_index(path,0);

   337     indices=gtk_tree_path_get_indices(path);

   338     packages=plover_package_set_get_packages(set);

   339     for(link=packages;link;link=link->next)

   340 	g_sequence_insert_sorted(seq,link->data,plover__package_compar,NULL);

   341     prev=NULL;

   342     iter=g_sequence_get_begin_iter(priv->seq);

   343     remove=g_sequence_get_begin_iter(seq);

   344     while(!g_sequence_iter_is_end(iter) && !g_sequence_iter_is_end(remove))

   345     {

   346 	if (g_sequence_get(iter)==g_sequence_get(remove))

   347 	{

   348 	    *indices=g_sequence_iter_get_position(iter);

   349 	    g_sequence_remove(iter);

   350 	    remove=g_sequence_iter_next(remove);

   351 	    gtk_tree_model_row_deleted(GTK_TREE_MODEL(store),path);

   352 	}

   353 	else

   354 	    prev=iter;

   355 	if (prev)

   356 	    iter=g_sequence_iter_next(prev);

   357 	else

   358 	    iter=g_sequence_get_begin_iter(priv->seq);

   359     }

   360     gtk_tree_path_free(path);

   361     g_sequence_free(seq);

   362     priv->sets=g_slist_remove(priv->sets,set);

   363     g_object_unref(set);

   364     priv->stamp++;

   365 }
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