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author | Milan Crha <mcrha@redhat.com> | 2009-05-20 22:50:00 +0800 |
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committer | Milan Crha <mcrha@redhat.com> | 2009-05-20 22:50:00 +0800 |
commit | f4cf9af33ccde3142a3011e8b2dbcfb4cbc9ae81 (patch) | |
tree | 1c0228db536f5fa0efc6e0f779bb86df610989d0 /widgets/text/e-reflow-model.c | |
parent | 3acc45b10c9849aa5385a762b4d139472916dca1 (diff) | |
download | gsoc2013-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.c | 350 |
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--); +} |