aboutsummaryrefslogtreecommitdiffstats
path: root/widgets/text/e-reflow-model.c
diff options
context:
space:
mode:
authorMilan Crha <mcrha@redhat.com>2009-05-20 22:50:00 +0800
committerMilan Crha <mcrha@redhat.com>2009-05-20 22:50:00 +0800
commitf4cf9af33ccde3142a3011e8b2dbcfb4cbc9ae81 (patch)
tree1c0228db536f5fa0efc6e0f779bb86df610989d0 /widgets/text/e-reflow-model.c
parent3acc45b10c9849aa5385a762b4d139472916dca1 (diff)
downloadgsoc2013-evolution-f4cf9af33ccde3142a3011e8b2dbcfb4cbc9ae81.tar.gz
gsoc2013-evolution-f4cf9af33ccde3142a3011e8b2dbcfb4cbc9ae81.tar.zst
gsoc2013-evolution-f4cf9af33ccde3142a3011e8b2dbcfb4cbc9ae81.zip
Use -no-undefined on Linux too
There still left two things opened, search for KILL-BONOBO to find them. One is in calendar's Makefile.am, one in composer.
Diffstat (limited to 'widgets/text/e-reflow-model.c')
-rw-r--r--widgets/text/e-reflow-model.c350
1 files changed, 350 insertions, 0 deletions
diff --git a/widgets/text/e-reflow-model.c b/widgets/text/e-reflow-model.c
new file mode 100644
index 0000000000..eae3d43324
--- /dev/null
+++ b/widgets/text/e-reflow-model.c
@@ -0,0 +1,350 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Authors:
+ * Chris Lahey <clahey@ximian.com>
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+#include <config.h>
+
+#include "e-util/e-util.h"
+
+#include "e-reflow-model.h"
+
+G_DEFINE_TYPE (EReflowModel, e_reflow_model, G_TYPE_OBJECT)
+
+#define d(x)
+
+d(static gint depth = 0;)
+
+
+enum {
+ MODEL_CHANGED,
+ COMPARISON_CHANGED,
+ MODEL_ITEMS_INSERTED,
+ MODEL_ITEM_CHANGED,
+ MODEL_ITEM_REMOVED,
+ LAST_SIGNAL
+};
+
+static guint e_reflow_model_signals [LAST_SIGNAL] = { 0, };
+
+/**
+ * e_reflow_model_set_width:
+ * @e_reflow_model: The e-reflow-model to operate on
+ * @width: The new value for the width of each item.
+ */
+void
+e_reflow_model_set_width (EReflowModel *e_reflow_model, int width)
+{
+ g_return_if_fail (e_reflow_model != NULL);
+ g_return_if_fail (E_IS_REFLOW_MODEL (e_reflow_model));
+
+ E_REFLOW_MODEL_GET_CLASS (e_reflow_model)->set_width (e_reflow_model, width);
+}
+
+/**
+ * e_reflow_model_count:
+ * @e_reflow_model: The e-reflow-model to operate on
+ *
+ * Returns: the number of items in the reflow model.
+ */
+int
+e_reflow_model_count (EReflowModel *e_reflow_model)
+{
+ g_return_val_if_fail (e_reflow_model != NULL, 0);
+ g_return_val_if_fail (E_IS_REFLOW_MODEL (e_reflow_model), 0);
+
+ return E_REFLOW_MODEL_GET_CLASS (e_reflow_model)->count (e_reflow_model);
+}
+
+/**
+ * e_reflow_model_height:
+ * @e_reflow_model: The e-reflow-model to operate on
+ * @n: The item number to get the height of.
+ * @parent: The parent GnomeCanvasItem.
+ *
+ * Returns: the height of the nth item.
+ */
+int
+e_reflow_model_height (EReflowModel *e_reflow_model, int n, GnomeCanvasGroup *parent)
+{
+ g_return_val_if_fail (e_reflow_model != NULL, 0);
+ g_return_val_if_fail (E_IS_REFLOW_MODEL (e_reflow_model), 0);
+
+ return E_REFLOW_MODEL_GET_CLASS (e_reflow_model)->height (e_reflow_model, n, parent);
+}
+
+/**
+ * e_reflow_model_incarnate:
+ * @e_reflow_model: The e-reflow-model to operate on
+ * @n: The item to create.
+ * @parent: The parent GnomeCanvasItem to create a child of.
+ *
+ * Create a GnomeCanvasItem to represent the nth piece of data.
+ *
+ * Returns: the new GnomeCanvasItem.
+ */
+GnomeCanvasItem *
+e_reflow_model_incarnate (EReflowModel *e_reflow_model, int n, GnomeCanvasGroup *parent)
+{
+ g_return_val_if_fail (e_reflow_model != NULL, NULL);
+ g_return_val_if_fail (E_IS_REFLOW_MODEL (e_reflow_model), NULL);
+
+ return E_REFLOW_MODEL_GET_CLASS (e_reflow_model)->incarnate (e_reflow_model, n, parent);
+}
+
+/**
+ * e_reflow_model_compare:
+ * @e_reflow_model: The e-reflow-model to operate on
+ * @n1: The first item to compare
+ * @n2: The second item to compare
+ *
+ * Compares item n1 and item n2 to see which should come first.
+ *
+ * Returns: strcmp like semantics for the comparison value.
+ */
+int
+e_reflow_model_compare (EReflowModel *e_reflow_model, int n1, int n2)
+{
+#if 0
+ g_return_val_if_fail (e_reflow_model != NULL, 0);
+ g_return_val_if_fail (E_IS_REFLOW_MODEL (e_reflow_model), 0);
+#endif
+
+ return E_REFLOW_MODEL_GET_CLASS (e_reflow_model)->compare (e_reflow_model, n1, n2);
+}
+
+/**
+ * e_reflow_model_reincarnate:
+ * @e_reflow_model: The e-reflow-model to operate on
+ * @n: The item to create.
+ * @item: The item to reuse.
+ *
+ * Update item to represent the nth piece of data.
+ */
+void
+e_reflow_model_reincarnate (EReflowModel *e_reflow_model, int n, GnomeCanvasItem *item)
+{
+ g_return_if_fail (e_reflow_model != NULL);
+ g_return_if_fail (E_IS_REFLOW_MODEL (e_reflow_model));
+
+ E_REFLOW_MODEL_GET_CLASS (e_reflow_model)->reincarnate (e_reflow_model, n, item);
+}
+
+static void
+e_reflow_model_class_init (EReflowModelClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ e_reflow_model_signals [MODEL_CHANGED] =
+ g_signal_new ("model_changed",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EReflowModelClass, model_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ e_reflow_model_signals [COMPARISON_CHANGED] =
+ g_signal_new ("comparison_changed",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EReflowModelClass, comparison_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ e_reflow_model_signals [MODEL_ITEMS_INSERTED] =
+ g_signal_new ("model_items_inserted",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EReflowModelClass, model_items_inserted),
+ NULL, NULL,
+ e_marshal_NONE__INT_INT,
+ G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT);
+
+ e_reflow_model_signals [MODEL_ITEM_CHANGED] =
+ g_signal_new ("model_item_changed",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EReflowModelClass, model_item_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__INT,
+ G_TYPE_NONE, 1, G_TYPE_INT);
+
+ e_reflow_model_signals [MODEL_ITEM_REMOVED] =
+ g_signal_new ("model_item_removed",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EReflowModelClass, model_item_removed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__INT,
+ G_TYPE_NONE, 1, G_TYPE_INT);
+
+ klass->set_width = NULL;
+ klass->count = NULL;
+ klass->height = NULL;
+ klass->incarnate = NULL;
+ klass->reincarnate = NULL;
+
+ klass->model_changed = NULL;
+ klass->comparison_changed = NULL;
+ klass->model_items_inserted = NULL;
+ klass->model_item_removed = NULL;
+ klass->model_item_changed = NULL;
+}
+
+static void
+e_reflow_model_init (EReflowModel *e_reflow_model)
+{
+}
+
+#if d(!)0
+static void
+print_tabs (void)
+{
+ int i;
+ for (i = 0; i < depth; i++)
+ g_print("\t");
+}
+#endif
+
+/**
+ * e_reflow_model_changed:
+ * @e_reflow_model: the reflow model to notify of the change
+ *
+ * Use this function to notify any views of this reflow model that
+ * the contents of the reflow model have changed. This will emit
+ * the signal "model_changed" on the @e_reflow_model object.
+ *
+ * It is preferable to use the e_reflow_model_item_changed() signal to
+ * notify of smaller changes than to invalidate the entire model, as
+ * the views might have ways of caching the information they render
+ * from the model.
+ */
+void
+e_reflow_model_changed (EReflowModel *e_reflow_model)
+{
+ g_return_if_fail (e_reflow_model != NULL);
+ g_return_if_fail (E_IS_REFLOW_MODEL (e_reflow_model));
+
+ d(print_tabs());
+ d(g_print("Emitting model_changed on model 0x%p.\n", e_reflow_model));
+ d(depth++);
+ g_signal_emit (e_reflow_model,
+ e_reflow_model_signals [MODEL_CHANGED], 0);
+ d(depth--);
+}
+
+/**
+ * e_reflow_model_comparison_changed:
+ * @e_reflow_model: the reflow model to notify of the change
+ *
+ * Use this function to notify any views of this reflow model that the
+ * sorting has changed. The actual contents of the items hasn't, so
+ * there's no need to re-query the model for the heights of the
+ * individual items.
+ */
+void
+e_reflow_model_comparison_changed (EReflowModel *e_reflow_model)
+{
+ g_return_if_fail (e_reflow_model != NULL);
+ g_return_if_fail (E_IS_REFLOW_MODEL (e_reflow_model));
+
+ d(print_tabs());
+ d(g_print("Emitting comparison_changed on model 0x%p.\n", e_reflow_model));
+ d(depth++);
+ g_signal_emit (e_reflow_model,
+ e_reflow_model_signals [COMPARISON_CHANGED], 0);
+ d(depth--);
+}
+
+/**
+ * e_reflow_model_items_inserted:
+ * @e_reflow_model: The model changed.
+ * @position: The position the items were insert in.
+ * @count: The number of items inserted.
+ *
+ * Use this function to notify any views of the reflow model that a number of items have been inserted.
+ **/
+void
+e_reflow_model_items_inserted (EReflowModel *e_reflow_model, int position, int count)
+{
+ g_return_if_fail (e_reflow_model != NULL);
+ g_return_if_fail (E_IS_REFLOW_MODEL (e_reflow_model));
+
+ d(print_tabs());
+ d(g_print("Emitting items_inserted on model 0x%p, position=%d, count=%d.\n", e_reflow_model, position, count));
+ d(depth++);
+ g_signal_emit (e_reflow_model,
+ e_reflow_model_signals [MODEL_ITEMS_INSERTED], 0,
+ position, count);
+ d(depth--);
+}
+
+/**
+ * e_reflow_model_item_removed:
+ * @e_reflow_model: The model changed.
+ * @n: The position from which the items were removed.
+ *
+ * Use this function to notify any views of the reflow model that an
+ * item has been removed.
+ **/
+void
+e_reflow_model_item_removed (EReflowModel *e_reflow_model,
+ int n)
+{
+ g_return_if_fail (e_reflow_model != NULL);
+ g_return_if_fail (E_IS_REFLOW_MODEL (e_reflow_model));
+
+ d(print_tabs());
+ d(g_print("Emitting item_removed on model 0x%p, n=%d.\n", e_reflow_model, n));
+ d(depth++);
+ g_signal_emit (e_reflow_model,
+ e_reflow_model_signals [MODEL_ITEM_REMOVED], 0,
+ n);
+ d(depth--);
+}
+
+
+/**
+ * e_reflow_model_item_changed:
+ * @e_reflow_model: the reflow model to notify of the change
+ * @item: the item that was changed in the model.
+ *
+ * Use this function to notify any views of the reflow model that the
+ * contents of item @item have changed in model such that the height
+ * has changed or the item needs to be reincarnated. This function
+ * will emit the "model_item_changed" signal on the @e_reflow_model
+ * object
+ */
+void
+e_reflow_model_item_changed (EReflowModel *e_reflow_model, int n)
+{
+ g_return_if_fail (e_reflow_model != NULL);
+ g_return_if_fail (E_IS_REFLOW_MODEL (e_reflow_model));
+
+ d(print_tabs());
+ d(g_print("Emitting item_changed on model 0x%p, n=%d.\n", e_reflow_model, n));
+ d(depth++);
+ g_signal_emit (e_reflow_model,
+ e_reflow_model_signals [MODEL_ITEM_CHANGED], 0,
+ n);
+ d(depth--);
+}