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gnc-tree-view.c
2371 lines (2038 loc) · 80.3 KB
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gnc-tree-view.c
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/*
* gnc-tree-view.c -- new GtkTreeView with extra features used by
* all the tree views in gnucash
*
* Copyright (C) 2003,2005 David Hampton <hampton@employees.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, contact:
*
* Free Software Foundation Voice: +1-617-542-5942
* 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652
* Boston, MA 02110-1301, USA gnu@gnu.org
*/
/** @addtogroup GUI
@{ */
/** @addtogroup GncTreeView
* @{ */
/** @file gnc-tree-view.c
@brief Base GncTreeView implementation for gnucash trees.
@author David Hampton <hampton@employees.org>
*/
#include <config.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <gdk/gdkkeysyms.h>
#include <string.h>
#include "gnc-tree-view.h"
#include "gnc-engine.h"
#include "gnc-gnome-utils.h"
#include "gnc-gobject-utils.h"
#include "gnc-cell-renderer-date.h"
#include "gnc-cell-renderer-text-view.h"
#include "gnc-state.h"
#include "gnc-prefs.h"
#include "dialog-utils.h"
/* The actual state key for a particular column visibility. This is
* attached to the menu items that are in the column selection menu.
* Makes it very easy to update saved state when a menu item is toggled. */
#define STATE_KEY "state-key"
/* State keys within this particular saved state section. */
#define STATE_KEY_SORT_COLUMN "sort_column"
#define STATE_KEY_SORT_ORDER "sort_order"
#define STATE_KEY_COLUMN_ORDER "column_order"
/* Partial state keys within this particular saved state section. These
are appended to the various column names to create the actual
keys. */
#define STATE_KEY_SUFF_VISIBLE "visible"
#define STATE_KEY_SUFF_WIDTH "width"
enum
{
PROP_0,
PROP_STATE_SECTION,
PROP_SHOW_COLUMN_MENU,
};
/** Static Globals *******************************************************/
/* This static indicates the debugging module that this .o belongs to. */
static QofLogModule log_module = GNC_MOD_GUI;
/**** Declarations ******************************************************/
static void gnc_tree_view_class_init (GncTreeViewClass *klass);
static void gnc_tree_view_init (GncTreeView *view, void *data);
static void gnc_tree_view_finalize (GObject *object);
static void gnc_tree_view_destroy (GtkWidget *widget);
static void gnc_tree_view_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gnc_tree_view_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static gboolean gnc_tree_view_drop_ok_cb (GtkTreeView *view,
GtkTreeViewColumn *column,
GtkTreeViewColumn *prev_column,
GtkTreeViewColumn *next_column,
gpointer data);
static void gnc_tree_view_build_column_menu (GncTreeView *view);
static void gnc_tree_view_select_column_cb (GtkTreeViewColumn *column,
GncTreeView *view);
static gchar *gnc_tree_view_get_sort_order (GncTreeView *view);
static gchar *gnc_tree_view_get_sort_column (GncTreeView *view);
static gchar **gnc_tree_view_get_column_order (GncTreeView *view,
gsize *length);
/** Private Data Structure ***********************************************/
typedef struct GncTreeViewPrivate
{
/* Column selection menu related values */
GtkTreeViewColumn *column_menu_column;
GtkWidget *column_menu;
gboolean show_column_menu;
GtkWidget *column_menu_icon_box;
/* Sort callback model */
GtkTreeModel *sort_model;
/* Editing callback functions */
GFunc editing_started_cb;
GFunc editing_finished_cb;
gpointer editing_cb_data;
/* State related values */
gchar *state_section;
gboolean seen_state_visibility;
gulong columns_changed_cb_id;
gulong sort_column_changed_cb_id;
gulong size_allocate_cb_id;
} GncTreeViewPrivate;
GNC_DEFINE_TYPE_WITH_CODE(GncTreeView, gnc_tree_view, GTK_TYPE_TREE_VIEW,
G_ADD_PRIVATE(GncTreeView))
#define GNC_TREE_VIEW_GET_PRIVATE(o) \
((GncTreeViewPrivate*)gnc_tree_view_get_instance_private((GncTreeView*)o))
/************************************************************/
/* g_object required functions */
/************************************************************/
/** @name Gnc Tree View Object Implementation
@{ */
static GObjectClass *parent_class = NULL;
/** Initialize the class for the new base gnucash tree view. This
* will set up any function pointers that override functions in the
* parent class, and also installs the properties that are unique to
* this class.
*
* @param klass The new class structure created by the object system.
*
* @internal
*/
static void
gnc_tree_view_class_init (GncTreeViewClass *klass)
{
GObjectClass *gobject_class;
GtkWidgetClass *gtkwidget_class;
parent_class = g_type_class_peek_parent (klass);
gobject_class = G_OBJECT_CLASS(klass);
gtkwidget_class = GTK_WIDGET_CLASS(klass);
gobject_class->set_property = gnc_tree_view_set_property;
gobject_class->get_property = gnc_tree_view_get_property;
g_object_class_install_property (gobject_class,
PROP_STATE_SECTION,
g_param_spec_string ("state-section",
"State Section",
"The section name in the saved state to use for (re)storing the treeview's visual state (visible columns, sort order,...",
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SHOW_COLUMN_MENU,
g_param_spec_boolean ("show-column-menu",
"Show Column Menu",
"Show the column menu so user can change what columns are visible.",
FALSE,
G_PARAM_READWRITE));
/* GObject signals */
gobject_class->finalize = gnc_tree_view_finalize;
/* GtkWidget signals */
gtkwidget_class->destroy = gnc_tree_view_destroy;
}
static void
gnc_tree_view_update_grid_lines (gpointer prefs, gchar* pref, gpointer user_data)
{
GncTreeView *view = user_data;
gtk_tree_view_set_grid_lines (GTK_TREE_VIEW(view), gnc_tree_view_get_grid_lines_pref ());
}
static gboolean
gnc_tree_view_select_column_icon_cb (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
GncTreeView *view = user_data;
GncTreeViewPrivate *priv;
GtkStyleContext *stylectxt = gtk_widget_get_style_context (widget);
GtkBorder padding;
// if the event button is not the right one, leave.
if (event->button != 1)
return FALSE;
priv = GNC_TREE_VIEW_GET_PRIVATE(view);
gtk_style_context_get_padding (stylectxt, GTK_STATE_FLAG_NORMAL, &padding);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
{
if (event->x < (gtk_widget_get_allocated_width (priv->column_menu_icon_box) + padding.left))
gnc_tree_view_select_column_cb (priv->column_menu_column, view);
}
else
{
if (event->x > (gtk_widget_get_allocated_width (widget) -
(gtk_widget_get_allocated_width (priv->column_menu_icon_box) + padding.right)))
gnc_tree_view_select_column_cb (priv->column_menu_column, view);
}
return FALSE;
}
/** Initialize a new instance of a base gnucash tree view. This
* function allocates and initializes the object private storage
* space. It also adds the new object to a list (for memory tracking
* purposes), and sets up a callback for the column drag function.
*
* @param view The new object instance created by the object system.
*
* @internal
*/
static void
gnc_tree_view_init (GncTreeView *view, void *data)
{
GncTreeViewPrivate *priv;
GtkTreeViewColumn *column;
GtkWidget *sep, *icon;
GncTreeViewClass *klass = (GncTreeViewClass*)data;
gnc_gobject_tracking_remember (G_OBJECT(view),
G_OBJECT_CLASS(klass));
priv = GNC_TREE_VIEW_GET_PRIVATE(view);
priv->column_menu = NULL;
priv->show_column_menu = FALSE;
priv->sort_model = NULL;
priv->state_section = NULL;
priv->seen_state_visibility = FALSE;
priv->columns_changed_cb_id = 0;
priv->sort_column_changed_cb_id = 0;
priv->size_allocate_cb_id = 0;
// Set the name for this widget so it can be easily manipulated with css
gtk_widget_set_name (GTK_WIDGET(view), "gnc-id-tree-view");
/* Handle column drag and drop */
gtk_tree_view_set_column_drag_function (GTK_TREE_VIEW(view),
gnc_tree_view_drop_ok_cb, NULL, NULL);
// Set grid lines option to preference
gtk_tree_view_set_grid_lines (GTK_TREE_VIEW(view), gnc_tree_view_get_grid_lines_pref ());
gnc_prefs_register_cb (GNC_PREFS_GROUP_GENERAL, GNC_PREF_GRID_LINES_HORIZONTAL,
gnc_tree_view_update_grid_lines, view);
gnc_prefs_register_cb (GNC_PREFS_GROUP_GENERAL, GNC_PREF_GRID_LINES_VERTICAL,
gnc_tree_view_update_grid_lines, view);
/* Create the last column which contains the column selection
* widget. gnc_tree_view_add_text_column will do most of the
* work. */
icon = gtk_image_new_from_icon_name ("pan-down-symbolic", GTK_ICON_SIZE_SMALL_TOOLBAR);
priv->column_menu_icon_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_set_homogeneous (GTK_BOX(priv->column_menu_icon_box), FALSE);
gtk_widget_set_margin_start (GTK_WIDGET(icon), 5);
gtk_box_pack_end (GTK_BOX(priv->column_menu_icon_box), icon, FALSE, FALSE, 0);
sep = gtk_separator_new (GTK_ORIENTATION_VERTICAL);
gtk_box_pack_end (GTK_BOX(priv->column_menu_icon_box), sep, FALSE, FALSE, 0);
gtk_widget_show_all (priv->column_menu_icon_box);
column = gnc_tree_view_add_text_column (view, NULL, NULL, NULL, NULL,
-1, -1, NULL);
g_object_set (G_OBJECT(column),
"clickable", TRUE,
"widget", priv->column_menu_icon_box,
"alignment", 1.0,
"expand", TRUE,
(gchar *)NULL);
priv->column_menu_column = column;
// get the actual column button by looking at the parents of the column_menu_icon
{
GtkWidget *mybox = gtk_widget_get_parent (icon);
GtkWidget *walign = gtk_widget_get_parent (mybox);
GtkWidget *box = gtk_widget_get_parent (walign);
GtkWidget *button = gtk_widget_get_parent (box);
if (!GTK_IS_BUTTON(button)) // just in case this order changes.
{
// this will fire for the whole column header
g_signal_connect (G_OBJECT(column), "clicked",
G_CALLBACK(gnc_tree_view_select_column_cb),
view);
}
else
{
/* this part will restrict the mouse click to just where the
icon is, tried using an eventbox but it would only work
some of the time */
gtk_widget_set_events (button, GDK_BUTTON_PRESS_MASK);
g_signal_connect (G_OBJECT(button), "button_press_event",
G_CALLBACK(gnc_tree_view_select_column_icon_cb),
view);
}
}
gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
}
/** Finalize the GncTreeView object. This function is called from the
* G_Object level to complete the destruction of the object. It
* should release any memory not previously released by the destroy
* function (i.e. the private data structure), then chain up to the
* parent's destroy function.
*
* @param object The object being destroyed.
*
* @internal
*/
static void
gnc_tree_view_finalize (GObject *object)
{
ENTER("view %p", object);
g_return_if_fail (object != NULL);
g_return_if_fail (GNC_IS_TREE_VIEW(object));
gnc_gobject_tracking_forget (object);
if (G_OBJECT_CLASS(parent_class)->finalize)
G_OBJECT_CLASS(parent_class)->finalize (object);
LEAVE(" ");
}
/** Destroy the GncTreeView widget. This function is called (possibly
* multiple times) from the Gtk_Object level to destroy the widget.
* It should release any memory owned by the widget that isn't
* fundamental to the implementation. In this function any active
* callbacks are disconnected, all memory other than the private data
* structure are freed.
*
* @param widget The widget being destroyed.
*
* @internal
*/
static void
gnc_tree_view_destroy (GtkWidget *widget)
{
GncTreeView *view;
GncTreeViewPrivate *priv;
ENTER("view %p", widget);
g_return_if_fail (widget != NULL);
g_return_if_fail (GNC_IS_TREE_VIEW(widget));
view = GNC_TREE_VIEW(widget);
gnc_prefs_remove_cb_by_func (GNC_PREFS_GROUP_GENERAL, GNC_PREF_GRID_LINES_HORIZONTAL,
gnc_tree_view_update_grid_lines, view);
gnc_prefs_remove_cb_by_func (GNC_PREFS_GROUP_GENERAL, GNC_PREF_GRID_LINES_VERTICAL,
gnc_tree_view_update_grid_lines, view);
priv = GNC_TREE_VIEW_GET_PRIVATE(view);
if (priv->state_section)
{
gnc_tree_view_save_state (view);
}
g_free (priv->state_section);
priv->state_section = NULL;
if (priv->column_menu)
{
DEBUG("removing column selection menu");
g_object_unref (priv->column_menu);
priv->column_menu = NULL;
}
if (GTK_WIDGET_CLASS(parent_class)->destroy)
GTK_WIDGET_CLASS(parent_class)->destroy (widget);
LEAVE(" ");
}
/** @} */
/************************************************************/
/* g_object other functions */
/************************************************************/
/** @name Gnc Tree View Object Implementation
@{ */
/** Retrieve a property specific to this GncTreeView object. This is
* nothing more than a dispatch function for routines that can be
* called directly. It has the nice feature of allowing a single
* function call to retrieve multiple properties.
*
* @internal
*/
static void
gnc_tree_view_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GncTreeView *view = GNC_TREE_VIEW(object);
GncTreeViewPrivate *priv;
priv = GNC_TREE_VIEW_GET_PRIVATE(view);
switch (prop_id)
{
case PROP_STATE_SECTION:
g_value_set_string (value, priv->state_section);
break;
case PROP_SHOW_COLUMN_MENU:
g_value_set_boolean (value, priv->show_column_menu);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
/** Set a property specific to this GncTreeView object. This is
* nothing more than a dispatch function for routines that can be
* called directly. It has the nice feature of allowing a new view
* to be created with a varargs list specifying the properties,
* instead of having to explicitly call each property function.
*
* @internal
*/
static void
gnc_tree_view_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GncTreeView *view = GNC_TREE_VIEW(object);
switch (prop_id)
{
case PROP_STATE_SECTION:
gnc_tree_view_set_state_section (view, g_value_get_string (value));
break;
case PROP_SHOW_COLUMN_MENU:
gnc_tree_view_set_show_column_menu (view, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
/** @} */
/************************************************************/
/* Auxiliary Functions */
/************************************************************/
/** @name Gnc Tree View Auxiliary Functions
@{ */
/** Find a tree column given a column id number from the underlying
* data model. This function should only be called by code that has
* visibility into the data model. The column id numbers shouldn't
* be used for any other purpose.
*
* This function simply runs the list of all (visible and invisible)
* columns looking for a match. Column id numbers were attached to
* each column at the time the column was created.
*
* @param view The visible tree widget.
*
* @param wanted The column id number to find.
*
* @internal
*/
static GtkTreeViewColumn *
view_column_find_by_model_id (GncTreeView *view,
const gint wanted)
{
GtkTreeViewColumn *column, *found = NULL;
GList *column_list, *tmp;
gint id;
// ENTER("view %p, name %s", view, name);
column_list = gtk_tree_view_get_columns (GTK_TREE_VIEW(view));
for (tmp = column_list; tmp; tmp = g_list_next (tmp))
{
column = tmp->data;
id = GPOINTER_TO_INT(g_object_get_data (G_OBJECT(column), MODEL_COLUMN));
if (id != wanted)
continue;
found = column;
break;
}
g_list_free (column_list);
// LEAVE("column %p", found);
return found;
}
/** Find a tree column given the "pref name" used with saved state. This
* function simply runs the list of all (visible and invisible)
* columns looking for a match. Column names were attached to each
* column at the time the column was created.
*
* @param view The visible tree widget.
*
* @param wanted The "pref name" to find.
*
*/
GtkTreeViewColumn *
gnc_tree_view_find_column_by_name (GncTreeView *view,
const gchar *wanted)
{
GtkTreeViewColumn *column, *found = NULL;
GList *column_list, *tmp;
const gchar *name;
// ENTER("view %p, wanted %s", view, wanted);
column_list = gtk_tree_view_get_columns(GTK_TREE_VIEW(view));
for (tmp = column_list; tmp; tmp = g_list_next (tmp))
{
column = tmp->data;
name = g_object_get_data (G_OBJECT(column), PREF_NAME);
if (!name || (strcmp(name, wanted) != 0))
continue;
found = column;
break;
}
g_list_free (column_list);
// LEAVE("column %p", found);
return found;
}
/** @} */
/************************************************************/
/* Tree Callbacks */
/************************************************************/
/** @name Gnc Tree View Callback Functions
@{ */
/** This function is called to determine whether it is acceptable to
* drop a dragged tree column at a given location. This function
* will be called multiple times by the GtkTreeView code while the
* user is dragging a column. Each call is a check to see if the
* proposed location is an acceptable place to drop the column. In
* the case of a GncTreeView, the only drop locations that are
* prohibited are on the right side of the visible tree.
*
* @param view The visible tree widget.
*
* @param column The column being dragged.
*
* @param prev_column The column before (left) of the proposed drop
* location.
*
* @param next_column The column after (right) of the proposed drop
* location.
*
* @param data Unused.
*
* @return TRUE if this drop location is acceptable. FALSE if not
* acceptable.
*
* @internal
*/
static gboolean
gnc_tree_view_drop_ok_cb (GtkTreeView *view,
GtkTreeViewColumn *column,
GtkTreeViewColumn *prev_column,
GtkTreeViewColumn *next_column,
gpointer data)
{
const gchar *pref_name;
/* Should we allow a drop at the left side of the tree view before
* the widget to open a new display level? I can think of cases
* where the user might want to do this with a checkbox column. */
if (prev_column == NULL)
return TRUE;
/* Do not allow a drop at the right side of the tree view after the
* column selection widget. */
if (next_column == NULL)
return FALSE;
/* Columns without pref names are considered fixed at the right hand
* side of the view. At the time of this writing, the only two are
* the column where the "column selection widget" is stored, and the
* "padding" column to the left of that where extra view space ends
* up. */
pref_name = g_object_get_data (G_OBJECT(prev_column), PREF_NAME);
if (!pref_name)
return FALSE;
/* Everything else is allowed. */
return TRUE;
}
/** @} */
/************************************************************/
/* State Setup / Callbacks */
/************************************************************/
/** @name Gnc Tree View state Callback / Related Functions
@{ */
/** Determine the visibility of a column. This function first looks
* for columns specially marked to be always visible, or columns
* without a preference name. These are always shown. Next, this
* function checks if visibility is stored in saved state. If so
* use the value found there. If none of the above the default
* visibility for the column is used.
*
* @param view A GncTreeView.
*
* @param column The GtkTreeViewColumn in question. Either this
* value or the pref_name parameter must be non-NULL.
*
* @param pref_name The name of the column in question. Either this
* value or the column parameter must be non-NULL.
*
* @return TRUE if the column should be visible. FALSE otherwise.
*
* @internal
*/
static gboolean
gnc_tree_view_column_visible (GncTreeView *view,
GtkTreeViewColumn *column,
const gchar *pref_name)
{
GncTreeViewPrivate *priv;
gboolean visible;
const gchar *col_name = pref_name;
ENTER("column %p, name %s", column, pref_name ? pref_name : "(null)");
priv = GNC_TREE_VIEW_GET_PRIVATE(view);
if (column)
{
if (g_object_get_data (G_OBJECT(column), ALWAYS_VISIBLE))
{
LEAVE("1, first column");
return TRUE;
}
col_name = g_object_get_data (G_OBJECT(column), PREF_NAME);
DEBUG("col_name is %s", col_name ? col_name : "(null)");
}
if (!col_name)
{
LEAVE("1, no pref name");
return TRUE;
}
/* Using saved state ? */
if (priv->state_section)
{
GKeyFile *state_file = gnc_state_get_current ();
gchar *key = g_strdup_printf ("%s_%s", col_name, STATE_KEY_SUFF_VISIBLE);
if (g_key_file_has_key (state_file, priv->state_section, key, NULL))
{
visible = g_key_file_get_boolean (state_file, priv->state_section, key, NULL);
g_free (key);
LEAVE("%d, state defined visibility", visible);
return visible;
}
}
/* Check the default columns list */
visible = column ?
(g_object_get_data (G_OBJECT(column), DEFAULT_VISIBLE) != NULL) : FALSE;
LEAVE("defaults says %d", visible);
return visible;
}
/** This function updates the visibility of a single column. It
* checks if the column should be visible, and if so tells the view
* to show the column.
*
* @param column The column whose visibility should be updated.
*
* @param view The GncTreeView containing the column.
*
* @internal
*/
static void
gnc_tree_view_update_visibility (GtkTreeViewColumn *column,
GncTreeView *view)
{
gboolean visible;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN(column));
g_return_if_fail (GNC_IS_TREE_VIEW(view));
ENTER(" ");
visible = gnc_tree_view_column_visible (view, column, NULL);
gtk_tree_view_column_set_visible (column, visible);
LEAVE("made %s", visible ? "visible" : "invisible");
}
/** Get the sort order for the sort column, converted into a string.
*
* @param view The tree view.
*
* @return a string representing the sort order. NULL if not sorted, else
* either "ascending" or "descending".
* Should be freed with g_free if no longer needed.
*
* @internal
*/
static gchar *
gnc_tree_view_get_sort_order (GncTreeView *view)
{
GtkTreeModel *s_model;
GtkSortType order;
gint current;
gchar *order_str = NULL;
s_model = gtk_tree_view_get_model (GTK_TREE_VIEW(view));
if (!s_model)
return NULL; /* no model, so sort order doesn't make sense */
if (!gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE(s_model),
¤t, &order))
return NULL; /* Model is not sorted, return */
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(s_model),
current, order);
order_str = g_strdup (order == GTK_SORT_ASCENDING ? "ascending" : "descending");
DEBUG("current sort_order is %s", order_str);
return order_str;
}
/** Get the current sort column.
*
* @param view The tree view.
*
* @return a string with the name of the sort column, or NULL if not sorted.
* Should be freed with g_free if no longer needed.
*
* @internal
*/
static gchar *
gnc_tree_view_get_sort_column (GncTreeView *view)
{
GtkTreeModel *s_model;
GtkTreeViewColumn *column;
GtkSortType order;
gint current;
const gchar *name;
s_model = gtk_tree_view_get_model (GTK_TREE_VIEW(view));
if (!s_model)
return NULL; /* no model -> no sort column */
if (!gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE(s_model),
¤t, &order))
return NULL; /* model not sorted */
column = view_column_find_by_model_id (view, current);
if (!column)
return NULL; /* column not visible, can't be used for sorting */
name = g_object_get_data (G_OBJECT(column), PREF_NAME);
DEBUG("current sort column is %s", name ? name : "(NULL)");
return g_strdup (name);
}
/** Get the current column order.
*
* @param view The tree view.
*
* @return an array of strings with the names of the columns in the order
* they are currently ordered.
* Should be freed with g_free if no longer needed.
*
* @internal
*/
static gchar **
gnc_tree_view_get_column_order (GncTreeView *view,
gsize *length)
{
const GList *tmp;
GList *columns;
gulong num_cols = 0;
gchar *col_names = NULL;
gchar **col_str_list;
/* First, convert from names to pointers */
ENTER(" ");
columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(view));
for (tmp = columns; tmp; tmp = g_list_next(tmp))
{
GtkTreeViewColumn *column = tmp->data;
const gchar *name = g_object_get_data (G_OBJECT(column), PREF_NAME);
if (!col_names)
col_names = g_strdup (name);
else
{
gchar *col_names_prev = col_names;
col_names = g_strjoin (";", col_names_prev, name, NULL);
g_free (col_names_prev);
}
num_cols++;
}
//DEBUG ("got %lu columns: %s", num_cols, col_names);
col_str_list = g_strsplit (col_names, ";", 0);
/* Clean up */
g_list_free (columns);
g_free (col_names);
LEAVE("column order get");
*length = num_cols;
return col_str_list;
}
/** Set the sort order for the sort column (if there is one)
* of this tree view.
*
* @param view The tree view.
*
* @param name The sort order enum (in string form). Either
* "ascending" or "descending".
*
* @internal
*/
static void
gnc_tree_view_set_sort_order (GncTreeView *view,
const gchar *name)
{
GtkTreeModel *s_model;
GtkSortType order = GTK_SORT_ASCENDING;
gint current;
s_model = gtk_tree_view_get_model (GTK_TREE_VIEW(view));
if (!s_model)
return;
if (g_strcmp0 (name, "descending") == 0)
order = GTK_SORT_DESCENDING;
if (!gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE(s_model),
¤t, NULL))
current = GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID;
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(s_model),
current, order);
DEBUG("sort_order set to %s", order == GTK_SORT_ASCENDING ? "ascending" : "descending");
}
/** Set the sort column for this tree view.
*
* @param view The tree view.
*
* @param name The name of the column that should be made the sort column.
*
* @internal
*/
static void
gnc_tree_view_set_sort_column (GncTreeView *view,
const gchar *name)
{
GtkTreeModel *s_model;
GtkTreeViewColumn *column;
GtkSortType order;
gint model_column, current;
s_model = gtk_tree_view_get_model (GTK_TREE_VIEW(view));
if (!s_model)
return;
column = gnc_tree_view_find_column_by_name (view, name);
if (!column)
{
gtk_tree_sortable_set_sort_column_id (
GTK_TREE_SORTABLE(s_model), GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
GTK_SORT_ASCENDING);
return;
}
model_column =
GPOINTER_TO_INT(g_object_get_data (G_OBJECT(column), MODEL_COLUMN));
if (model_column == GNC_TREE_VIEW_COLUMN_DATA_NONE)
return;
if (!gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE(s_model),
¤t, &order))
order = GTK_SORT_ASCENDING;
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(s_model),
model_column, order);
DEBUG("sort column set to %s", name);
}
/** Set the order of the columns (visible and invisible) for this
* tree view.
*
* @param view The tree view.
*
* @param column_names An array of strings. These strings are the
* names of the columns in the order they should appear.
*
* @param length The number of strings in the array.
*
* @internal
*/
static void
gnc_tree_view_set_column_order (GncTreeView *view,
gchar **column_names,
gsize length)
{
GtkTreeViewColumn *column, *prev;
const GSList *tmp;
GSList *columns;
gsize idx;
/* First, convert from names to pointers */
ENTER(" ");
columns = NULL;
for (idx = 0; idx < length; idx++)
{
const gchar *name = column_names [idx];
column = gnc_tree_view_find_column_by_name (view, name);
if (!column)
continue;
columns = g_slist_append (columns, column);
}
/* Then reorder the columns */
for (prev = NULL, tmp = columns; tmp; tmp = g_slist_next (tmp))
{
column = tmp->data;
gtk_tree_view_move_column_after (GTK_TREE_VIEW(view), column, prev);
prev = column;
}
/* Clean up */
g_slist_free (columns);
LEAVE("column order set");
}
/** Completely wipe the treeview's state information (column visibility, width,
* sorting order,..). This function may be called at any time;
* either when the user wants to disconnect or
* when the view object is being destroyed.
*
* @param view The tree view.
*/
void gnc_tree_view_remove_state_information (GncTreeView *view)
{
GncTreeViewPrivate *priv;
GKeyFile *state_file = gnc_state_get_current ();
ENTER(" ");
priv = GNC_TREE_VIEW_GET_PRIVATE(view);
if (!priv->state_section)
{
LEAVE("no state section");
return;
}
g_key_file_remove_group (state_file, priv->state_section, NULL);
g_free (priv->state_section);
priv->state_section = NULL;
LEAVE(" ");
}
/** Set up or remove an association between a saved state section
* and the display of a view. It will first remove any existing association,
* and then install the new one. If the new section has state
* information, update the view with this information.