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plover-gtk/packagestore.c
author J. Ali Harlow <ali@juiblex.co.uk>
Fri Apr 30 20:37:08 2010 +0100 (2010-04-30)
changeset 11 0987519d94ba
parent 9 8d3b1ddf789c
child 12 1d18b9c34d26
permissions -rw-r--r--
Release version 0.3 
     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     PloverPackageStore *store=(PloverPackageStore *)tree_model;

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

   105       G_TYPE_INVALID);

   106     return column_types[indx];

   107 }

   108 

   109 static gboolean plover_package_store_get_iter(GtkTreeModel *tree_model,

   110   GtkTreeIter *iter,GtkTreePath *path)

   111 {

   112     int i;

   113     PloverPackageStorePrivate *priv;

   114     PloverPackageStore *store=(PloverPackageStore *)tree_model;

   115     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(store);

   116     i=gtk_tree_path_get_indices(path)[0];

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

   118 	return FALSE;

   119     iter->stamp=priv->stamp;

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

   121     return TRUE;

   122 }

   123 

   124 static GtkTreePath *

   125   plover_package_store_get_path(GtkTreeModel *tree_model,GtkTreeIter *iter)

   126 {

   127     GtkTreePath *path;

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

   129     if (g_sequence_iter_is_end(iter->user_data))

   130 	return NULL;

   131     path=gtk_tree_path_new();

   132     gtk_tree_path_append_index(path,

   133       g_sequence_iter_get_position(iter->user_data));

   134     return path;

   135 }

   136 

   137 static void plover_package_store_get_value(GtkTreeModel *tree_model,

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

   139 {

   140     char *s;

   141     PloverPackageStore *store=(PloverPackageStore *)tree_model;

   142     PloverPackage *package;

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

   144     g_return_if_fail(VALID_ITER(iter,store));

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

   146     g_value_init(value,column_types[column]);

   147     switch((PloverPackageStoreColumn)column)

   148     {

   149 	case PLOVER_PACKAGE_STORE_OBJ_COLUMN:

   150 	    g_value_set_object(value,package);

   151 	    break;

   152 	case PLOVER_PACKAGE_STORE_INSTALLED_COLUMN:

   153 	    break;

   154 	case PLOVER_PACKAGE_STORE_ICON_COLUMN:

   155 	    g_value_set_object(value,plover_package_get_icon(package));

   156 	    break;

   157 	case PLOVER_PACKAGE_STORE_NAME_COLUMN:

   158 	    g_value_set_string(value,plover_package_get_name(package));

   159 	    break;

   160 	case PLOVER_PACKAGE_STORE_VERSION_COLUMN:

   161 	    g_value_set_string(value,plover_package_get_version(package));

   162 	    break;

   163 	case PLOVER_PACKAGE_STORE_SUMMARY_COLUMN:

   164 	    s=plover_package_get_summary(package);

   165 	    if (*s)

   166 		g_value_set_string(value,s);

   167 	    else

   168 	    {

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

   170 		  " package",NULL);

   171 		g_value_set_string(value,s);

   172 		g_free(s);

   173 	    }

   174 	    break;

   175     }

   176 }

   177 

   178 static gboolean

   179   plover_package_store_iter_next(GtkTreeModel *tree_model,GtkTreeIter *iter)

   180 {

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

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

   183     return !g_sequence_iter_is_end(iter->user_data);

   184 }

   185 

   186 static gboolean plover_package_store_iter_children(GtkTreeModel *tree_model,

   187   GtkTreeIter *iter,GtkTreeIter *parent)

   188 {

   189     PloverPackageStorePrivate *priv;

   190     PloverPackageStore *store=(PloverPackageStore *)tree_model;

   191     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(tree_model);

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

   193     if (parent)

   194 	return FALSE;

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

   196     {

   197 	iter->stamp=priv->stamp;

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

   199 	return TRUE;

   200     }

   201     else

   202 	return FALSE;

   203 }

   204 

   205 static gboolean plover_package_store_iter_has_child(GtkTreeModel *tree_model,

   206   GtkTreeIter *iter)

   207 {

   208     return FALSE;

   209 }

   210 

   211 static gint plover_package_store_iter_n_children(GtkTreeModel *tree_model,

   212   GtkTreeIter *iter)

   213 {

   214     PloverPackageStorePrivate *priv;

   215     PloverPackageStore *store=(PloverPackageStore *)tree_model;

   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     PloverPackageStore *store=(PloverPackageStore *)tree_model;

   228     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(tree_model);

   229     GSequenceIter *child;

   230     if (parent)

   231 	return FALSE;

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

   233     if (g_sequence_iter_is_end(child))

   234 	return FALSE;

   235     iter->stamp=priv->stamp;

   236     iter->user_data=child;

   237     return TRUE;

   238 }

   239 

   240 static gboolean plover_package_store_iter_parent(GtkTreeModel *tree_model,

   241   GtkTreeIter *iter,GtkTreeIter *child)

   242 {

   243     return FALSE;

   244 }

   245 

   246 static void plover_package_store_tree_model_init(GtkTreeModelIface *iface)

   247 {

   248     iface->get_flags=plover_package_store_get_flags;

   249     iface->get_n_columns=plover_package_store_get_n_columns;

   250     iface->get_column_type=plover_package_store_get_column_type;

   251     iface->get_iter=plover_package_store_get_iter;

   252     iface->get_path=plover_package_store_get_path;

   253     iface->get_value=plover_package_store_get_value;

   254     iface->iter_next=plover_package_store_iter_next;

   255     iface->iter_children=plover_package_store_iter_children;

   256     iface->iter_has_child=plover_package_store_iter_has_child;

   257     iface->iter_n_children=plover_package_store_iter_n_children;

   258     iface->iter_nth_child=plover_package_store_iter_nth_child;

   259     iface->iter_parent=plover_package_store_iter_parent;

   260 }

   261 

   262 static void plover_package_store_init(PloverPackageStore *store)

   263 {

   264     PloverPackageStorePrivate *priv;

   265     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(store);

   266     priv->seq=g_sequence_new(NULL);

   267     priv->stamp=g_random_int();

   268 }

   269 

   270 PloverPackageStore *plover_package_store_new(void)

   271 {

   272     return g_object_new(PLOVER_TYPE_PACKAGE_STORE,NULL);

   273 }

   274 

   275 GSList *plover_package_store_get_sets(PloverPackageStore *store)

   276 {

   277     PloverPackageStorePrivate *priv;

   278     g_return_val_if_fail(PLOVER_IS_PACKAGE_STORE(store),NULL);

   279     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(store);

   280     return priv->sets;

   281 }

   282 

   283 static gint

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

   285 {

   286     PloverPackage *pa=PLOVER_PACKAGE(a);

   287     PloverPackage *pb=PLOVER_PACKAGE(b);

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

   289 }

   290 

   291 void plover_package_store_add_set(PloverPackageStore *store,

   292   PloverPackageSet *set)

   293 {

   294     GSList *packages,*link;

   295     GSequenceIter *si;

   296     GtkTreeIter ti;

   297     GtkTreePath *path;

   298     gint *indices;

   299     PloverPackageStorePrivate *priv;

   300     g_return_if_fail(PLOVER_IS_PACKAGE_STORE(store));

   301     g_return_if_fail(PLOVER_IS_PACKAGE_SET(set));

   302     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(store);

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

   304     g_object_ref(set);

   305     path=gtk_tree_path_new();

   306     gtk_tree_path_append_index(path,0);

   307     indices=gtk_tree_path_get_indices(path);

   308     packages=plover_package_set_get_packages(set);

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

   310     {

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

   312 	  plover__package_compar,NULL);

   313 	*indices=g_sequence_iter_get_position(si);

   314 	ti.stamp=priv->stamp;

   315 	ti.user_data=si;

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

   317     }

   318     gtk_tree_path_free(path);

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

   320 }

   321 

   322 void plover_package_store_remove_set(PloverPackageStore *store,

   323   PloverPackageSet *set)

   324 {

   325     GSList *packages,*link;

   326     GSequence *seq;

   327     GSequenceIter *iter,*prev,*remove;

   328     GtkTreePath *path;

   329     gint *indices;

   330     PloverPackageStorePrivate *priv;

   331     g_return_if_fail(PLOVER_IS_PACKAGE_STORE(store));

   332     g_return_if_fail(PLOVER_IS_PACKAGE_SET(set));

   333     priv=PLOVER_PACKAGE_STORE_GET_PRIVATE(store);

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

   335     seq=g_sequence_new(NULL);

   336     path=gtk_tree_path_new();

   337     gtk_tree_path_append_index(path,0);

   338     indices=gtk_tree_path_get_indices(path);

   339     packages=plover_package_set_get_packages(set);

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

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

   342     prev=NULL;

   343     iter=g_sequence_get_begin_iter(priv->seq);

   344     remove=g_sequence_get_begin_iter(seq);

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

   346     {

   347 	if (g_sequence_get(iter)==g_sequence_get(remove))

   348 	{

   349 	    *indices=g_sequence_iter_get_position(iter);

   350 	    g_sequence_remove(iter);

   351 	    remove=g_sequence_iter_next(remove);

   352 	    gtk_tree_model_row_deleted(GTK_TREE_MODEL(store),path);

   353 	}

   354 	else

   355 	    prev=iter;

   356 	if (prev)

   357 	    iter=g_sequence_iter_next(prev);

   358 	else

   359 	    iter=g_sequence_get_begin_iter(priv->seq);

   360     }

   361     gtk_tree_path_free(path);

   362     g_sequence_free(seq);

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

   364     g_object_unref(set);

   365     priv->stamp++;

   366 }
plover