/*
* 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
*
*
* Authors:
* Chris Lahey
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#ifdef HAVE_CONFIG_H
#include
#endif
#include
#include
#include
#include
#include
#include
#include
#include "e-canvas-background.h"
#include "e-canvas-utils.h"
#include "e-canvas.h"
#include "e-table-column-specification.h"
#include "e-table-header-item.h"
#include "e-table-header.h"
#include "e-table-item.h"
#include "e-table-sort-info.h"
#include "e-table-utils.h"
#include "e-text.h"
#include "e-tree-selection-model.h"
#include "e-tree-table-adapter.h"
#include "e-tree.h"
#include "gal-a11y-e-tree.h"
#define COLUMN_HEADER_HEIGHT 16
#define d(x)
#define E_TREE_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE \
((obj), E_TYPE_TREE, ETreePrivate))
typedef struct _ETreeDragSourceSite ETreeDragSourceSite;
enum {
CURSOR_CHANGE,
CURSOR_ACTIVATED,
SELECTION_CHANGE,
DOUBLE_CLICK,
RIGHT_CLICK,
CLICK,
KEY_PRESS,
START_DRAG,
STATE_CHANGE,
WHITE_SPACE_EVENT,
CUT_CLIPBOARD,
COPY_CLIPBOARD,
PASTE_CLIPBOARD,
SELECT_ALL,
TREE_DRAG_BEGIN,
TREE_DRAG_END,
TREE_DRAG_DATA_GET,
TREE_DRAG_DATA_DELETE,
TREE_DRAG_LEAVE,
TREE_DRAG_MOTION,
TREE_DRAG_DROP,
TREE_DRAG_DATA_RECEIVED,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_LENGTH_THRESHOLD,
PROP_HORIZONTAL_DRAW_GRID,
PROP_VERTICAL_DRAW_GRID,
PROP_DRAW_FOCUS,
PROP_ETTA,
PROP_UNIFORM_ROW_HEIGHT,
PROP_ALWAYS_SEARCH,
PROP_HADJUSTMENT,
PROP_VADJUSTMENT,
PROP_HSCROLL_POLICY,
PROP_VSCROLL_POLICY
};
enum {
ET_SCROLL_UP = 1 << 0,
ET_SCROLL_DOWN = 1 << 1,
ET_SCROLL_LEFT = 1 << 2,
ET_SCROLL_RIGHT = 1 << 3
};
struct _ETreePrivate {
ETreeModel *model;
ETreeTableAdapter *etta;
ETableHeader *full_header, *header;
guint structure_change_id, expansion_change_id;
ETableSortInfo *sort_info;
ESorter *sorter;
guint sort_info_change_id, group_info_change_id;
ESelectionModel *selection;
ETableSpecification *spec;
ETableSearch *search;
ETableCol *current_search_col;
guint search_search_id;
guint search_accept_id;
gint reflow_idle_id;
gint scroll_idle_id;
gint hover_idle_id;
gboolean show_cursor_after_reflow;
gint table_model_change_id;
gint table_row_change_id;
gint table_cell_change_id;
gint table_rows_delete_id;
GnomeCanvasItem *info_text;
guint info_text_resize_id;
GnomeCanvas *header_canvas, *table_canvas;
GnomeCanvasItem *header_item, *root;
GnomeCanvasItem *white_item;
GnomeCanvasItem *item;
gint length_threshold;
/*
* Configuration settings
*/
guint alternating_row_colors : 1;
guint horizontal_draw_grid : 1;
guint vertical_draw_grid : 1;
guint draw_focus : 1;
guint row_selection_active : 1;
guint horizontal_scrolling : 1;
guint scroll_direction : 4;
guint do_drag : 1;
guint uniform_row_height : 1;
guint search_col_set : 1;
guint always_search : 1;
ECursorMode cursor_mode;
gint drop_row;
ETreePath drop_path;
gint drop_col;
GnomeCanvasItem *drop_highlight;
gint last_drop_x;
gint last_drop_y;
gint last_drop_time;
GdkDragContext *last_drop_context;
gint hover_x;
gint hover_y;
gint drag_row;
ETreePath drag_path;
gint drag_col;
ETreeDragSourceSite *site;
GList *expanded_list;
gboolean state_changed;
guint state_change_freeze;
gboolean is_dragging;
};
static guint signals[LAST_SIGNAL];
static void et_grab_focus (GtkWidget *widget);
static void et_drag_begin (GtkWidget *widget,
GdkDragContext *context,
ETree *tree);
static void et_drag_end (GtkWidget *widget,
GdkDragContext *context,
ETree *tree);
static void et_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
ETree *tree);
static void et_drag_data_delete (GtkWidget *widget,
GdkDragContext *context,
ETree *tree);
static void et_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time,
ETree *tree);
static gboolean et_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETree *tree);
static gboolean et_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETree *tree);
static void et_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time,
ETree *tree);
static void scroll_off (ETree *tree);
static void scroll_on (ETree *tree, guint scroll_direction);
static void hover_off (ETree *tree);
static void hover_on (ETree *tree, gint x, gint y);
static void context_destroyed (gpointer data, GObject *ctx);
G_DEFINE_TYPE_WITH_CODE (ETree, e_tree, GTK_TYPE_TABLE,
G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, NULL))
static void
et_disconnect_from_etta (ETree *tree)
{
if (tree->priv->table_model_change_id != 0)
g_signal_handler_disconnect (
tree->priv->etta,
tree->priv->table_model_change_id);
if (tree->priv->table_row_change_id != 0)
g_signal_handler_disconnect (
tree->priv->etta,
tree->priv->table_row_change_id);
if (tree->priv->table_cell_change_id != 0)
g_signal_handler_disconnect (
tree->priv->etta,
tree->priv->table_cell_change_id);
if (tree->priv->table_rows_delete_id != 0)
g_signal_handler_disconnect (
tree->priv->etta,
tree->priv->table_rows_delete_id);
tree->priv->table_model_change_id = 0;
tree->priv->table_row_change_id = 0;
tree->priv->table_cell_change_id = 0;
tree->priv->table_rows_delete_id = 0;
}
static void
clear_current_search_col (ETree *tree)
{
tree->priv->search_col_set = FALSE;
}
static ETableCol *
current_search_col (ETree *tree)
{
if (!tree->priv->search_col_set) {
tree->priv->current_search_col =
e_table_util_calculate_current_search_col (
tree->priv->header,
tree->priv->full_header,
tree->priv->sort_info,
tree->priv->always_search);
tree->priv->search_col_set = TRUE;
}
return tree->priv->current_search_col;
}
static void
e_tree_state_change (ETree *tree)
{
if (tree->priv->state_change_freeze)
tree->priv->state_changed = TRUE;
else
g_signal_emit (tree, signals[STATE_CHANGE], 0);
}
static void
change_trigger (GObject *object,
ETree *tree)
{
e_tree_state_change (tree);
}
static void
search_col_change_trigger (GObject *object,
ETree *tree)
{
clear_current_search_col (tree);
e_tree_state_change (tree);
}
static void
disconnect_header (ETree *tree)
{
if (tree->priv->header == NULL)
return;
if (tree->priv->structure_change_id)
g_signal_handler_disconnect (
tree->priv->header,
tree->priv->structure_change_id);
if (tree->priv->expansion_change_id)
g_signal_handler_disconnect (
tree->priv->header,
tree->priv->expansion_change_id);
if (tree->priv->sort_info) {
if (tree->priv->sort_info_change_id)
g_signal_handler_disconnect (
tree->priv->sort_info,
tree->priv->sort_info_change_id);
if (tree->priv->group_info_change_id)
g_signal_handler_disconnect (
tree->priv->sort_info,
tree->priv->group_info_change_id);
g_object_unref (tree->priv->sort_info);
}
g_object_unref (tree->priv->header);
tree->priv->header = NULL;
tree->priv->sort_info = NULL;
}
static void
connect_header (ETree *tree,
ETableState *state)
{
GValue *val = g_new0 (GValue, 1);
if (tree->priv->header != NULL)
disconnect_header (tree);
tree->priv->header = e_table_state_to_header (
GTK_WIDGET (tree), tree->priv->full_header, state);
tree->priv->structure_change_id = g_signal_connect (
tree->priv->header, "structure_change",
G_CALLBACK (search_col_change_trigger), tree);
tree->priv->expansion_change_id = g_signal_connect (
tree->priv->header, "expansion_change",
G_CALLBACK (change_trigger), tree);
if (state->sort_info) {
tree->priv->sort_info = e_table_sort_info_duplicate (state->sort_info);
e_table_sort_info_set_can_group (tree->priv->sort_info, FALSE);
tree->priv->sort_info_change_id = g_signal_connect (
tree->priv->sort_info, "sort_info_changed",
G_CALLBACK (search_col_change_trigger), tree);
tree->priv->group_info_change_id = g_signal_connect (
tree->priv->sort_info, "group_info_changed",
G_CALLBACK (search_col_change_trigger), tree);
} else
tree->priv->sort_info = NULL;
g_value_init (val, G_TYPE_OBJECT);
g_value_set_object (val, tree->priv->sort_info);
g_object_set_property (G_OBJECT (tree->priv->header), "sort_info", val);
g_free (val);
}
static void
et_dispose (GObject *object)
{
ETreePrivate *priv;
priv = E_TREE_GET_PRIVATE (object);
if (priv->search != NULL) {
g_signal_handler_disconnect (
priv->search, priv->search_search_id);
g_signal_handler_disconnect (
priv->search, priv->search_accept_id);
g_object_unref (priv->search);
priv->search = NULL;
}
if (priv->reflow_idle_id > 0) {
g_source_remove (priv->reflow_idle_id);
priv->reflow_idle_id = 0;
}
scroll_off (E_TREE (object));
hover_off (E_TREE (object));
g_list_foreach (
priv->expanded_list,
(GFunc) g_free, NULL);
g_list_free (priv->expanded_list);
priv->expanded_list = NULL;
et_disconnect_from_etta (E_TREE (object));
if (priv->etta != NULL) {
g_object_unref (priv->etta);
priv->etta = NULL;
}
if (priv->model != NULL) {
g_object_unref (priv->model);
priv->model = NULL;
}
if (priv->full_header != NULL) {
g_object_unref (priv->full_header);
priv->full_header = NULL;
}
disconnect_header (E_TREE (object));
if (priv->selection != NULL) {
g_object_unref (priv->selection);
priv->selection = NULL;
}
if (priv->spec != NULL) {
g_object_unref (priv->spec);
priv->spec = NULL;
}
if (priv->sorter != NULL) {
g_object_unref (priv->sorter);
priv->sorter = NULL;
}
if (priv->header_canvas != NULL) {
gtk_widget_destroy (GTK_WIDGET (priv->header_canvas));
priv->header_canvas = NULL;
}
if (priv->site)
e_tree_drag_source_unset (E_TREE (object));
if (priv->last_drop_context != NULL) {
g_object_weak_unref (
G_OBJECT (priv->last_drop_context),
context_destroyed, object);
priv->last_drop_context = NULL;
}
if (priv->info_text != NULL) {
g_object_run_dispose (G_OBJECT (priv->info_text));
priv->info_text = NULL;
}
priv->info_text_resize_id = 0;
if (priv->table_canvas != NULL) {
gtk_widget_destroy (GTK_WIDGET (priv->table_canvas));
priv->table_canvas = NULL;
}
/* do not unref it, it was owned by priv->table_canvas */
priv->item = NULL;
/* Chain up to parent's dispose() method. */
G_OBJECT_CLASS (e_tree_parent_class)->dispose (object);
}
static void
et_unrealize (GtkWidget *widget)
{
scroll_off (E_TREE (widget));
hover_off (E_TREE (widget));
if (GTK_WIDGET_CLASS (e_tree_parent_class)->unrealize)
GTK_WIDGET_CLASS (e_tree_parent_class)->unrealize (widget);
}
typedef struct {
ETree *tree;
gchar *string;
} SearchSearchStruct;
static gboolean
search_search_callback (ETreeModel *model,
ETreePath path,
gpointer data)
{
SearchSearchStruct *cb_data = data;
gconstpointer value;
ETableCol *col = current_search_col (cb_data->tree);
value = e_tree_model_value_at (
model, path, cb_data->tree->priv->current_search_col->col_idx);
return col->search (value, cb_data->string);
}
static gboolean
et_search_search (ETableSearch *search,
gchar *string,
ETableSearchFlags flags,
ETree *tree)
{
ETreePath cursor;
ETreePath found;
SearchSearchStruct cb_data;
ETableCol *col = current_search_col (tree);
if (col == NULL)
return FALSE;
cb_data.tree = tree;
cb_data.string = string;
cursor = e_tree_get_cursor (tree);
if (cursor && (flags & E_TABLE_SEARCH_FLAGS_CHECK_CURSOR_FIRST)) {
gconstpointer value;
value = e_tree_model_value_at (tree->priv->model, cursor, col->col_idx);
if (col->search (value, string)) {
return TRUE;
}
}
found = e_tree_model_node_find (
tree->priv->model, cursor, NULL,
search_search_callback, &cb_data);
if (found == NULL)
found = e_tree_model_node_find (
tree->priv->model, NULL, cursor,
search_search_callback, &cb_data);
if (found && found != cursor) {
gint model_row;
e_tree_table_adapter_show_node (tree->priv->etta, found);
model_row = e_tree_table_adapter_row_of_node (tree->priv->etta, found);
e_selection_model_select_as_key_press (
E_SELECTION_MODEL (tree->priv->selection),
model_row, col->col_idx, GDK_CONTROL_MASK);
return TRUE;
} else if (cursor && !(flags & E_TABLE_SEARCH_FLAGS_CHECK_CURSOR_FIRST)) {
gconstpointer value;
value = e_tree_model_value_at (tree->priv->model, cursor, col->col_idx);
return col->search (value, string);
} else
return FALSE;
}
static void
et_search_accept (ETableSearch *search,
ETree *tree)
{
ETableCol *col = current_search_col (tree);
gint cursor;
if (col == NULL)
return;
g_object_get (tree->priv->selection, "cursor_row", &cursor, NULL);
e_selection_model_select_as_key_press (
E_SELECTION_MODEL (tree->priv->selection),
cursor, col->col_idx, 0);
}
static void
e_tree_init (ETree *tree)
{
gtk_widget_set_can_focus (GTK_WIDGET (tree), TRUE);
gtk_table_set_homogeneous (GTK_TABLE (tree), FALSE);
tree->priv = E_TREE_GET_PRIVATE (tree);
tree->priv->alternating_row_colors = 1;
tree->priv->horizontal_draw_grid = 1;
tree->priv->vertical_draw_grid = 1;
tree->priv->draw_focus = 1;
tree->priv->cursor_mode = E_CURSOR_SIMPLE;
tree->priv->length_threshold = 200;
tree->priv->drop_row = -1;
tree->priv->drop_col = -1;
tree->priv->drag_row = -1;
tree->priv->drag_col = -1;
tree->priv->selection =
E_SELECTION_MODEL (e_tree_selection_model_new ());
tree->priv->search = e_table_search_new ();
tree->priv->search_search_id = g_signal_connect (
tree->priv->search, "search",
G_CALLBACK (et_search_search), tree);
tree->priv->search_accept_id = g_signal_connect (
tree->priv->search, "accept",
G_CALLBACK (et_search_accept), tree);
tree->priv->always_search = g_getenv ("GAL_ALWAYS_SEARCH") ? TRUE : FALSE;
tree->priv->state_changed = FALSE;
tree->priv->state_change_freeze = 0;
tree->priv->is_dragging = FALSE;
}
/* Grab_focus handler for the ETree */
static void
et_grab_focus (GtkWidget *widget)
{
ETree *tree;
tree = E_TREE (widget);
gtk_widget_grab_focus (GTK_WIDGET (tree->priv->table_canvas));
}
/* Focus handler for the ETree */
static gint
et_focus (GtkWidget *container,
GtkDirectionType direction)
{
ETree *tree;
tree = E_TREE (container);
if (gtk_container_get_focus_child (GTK_CONTAINER (container))) {
gtk_container_set_focus_child (GTK_CONTAINER (container), NULL);
return FALSE;
}
return gtk_widget_child_focus (
GTK_WIDGET (tree->priv->table_canvas), direction);
}
static void
set_header_canvas_width (ETree *tree)
{
gdouble oldwidth, oldheight, width;
if (!(tree->priv->header_item &&
tree->priv->header_canvas && tree->priv->table_canvas))
return;
gnome_canvas_get_scroll_region (
GNOME_CANVAS (tree->priv->table_canvas),
NULL, NULL, &width, NULL);
gnome_canvas_get_scroll_region (
GNOME_CANVAS (tree->priv->header_canvas),
NULL, NULL, &oldwidth, &oldheight);
if (oldwidth != width ||
oldheight != E_TABLE_HEADER_ITEM (tree->priv->header_item)->height - 1)
gnome_canvas_set_scroll_region (
GNOME_CANVAS (tree->priv->header_canvas),
0, 0, width, /* COLUMN_HEADER_HEIGHT - 1 */
E_TABLE_HEADER_ITEM (tree->priv->header_item)->height - 1);
}
static void
header_canvas_size_allocate (GtkWidget *widget,
GtkAllocation *alloc,
ETree *tree)
{
GtkAllocation allocation;
set_header_canvas_width (tree);
widget = GTK_WIDGET (tree->priv->header_canvas);
gtk_widget_get_allocation (widget, &allocation);
/* When the header item is created ->height == 0,
* as the font is only created when everything is realized.
* So we set the usize here as well, so that the size of the
* header is correct */
if (allocation.height != E_TABLE_HEADER_ITEM (tree->priv->header_item)->height)
gtk_widget_set_size_request (
widget, -1,
E_TABLE_HEADER_ITEM (tree->priv->header_item)->height);
}
static void
e_tree_setup_header (ETree *tree)
{
GtkWidget *widget;
gchar *pointer;
widget = e_canvas_new ();
gtk_widget_set_can_focus (widget, FALSE);
tree->priv->header_canvas = GNOME_CANVAS (widget);
gtk_widget_show (widget);
pointer = g_strdup_printf ("%p", (gpointer) tree);
tree->priv->header_item = gnome_canvas_item_new (
gnome_canvas_root (tree->priv->header_canvas),
e_table_header_item_get_type (),
"ETableHeader", tree->priv->header,
"full_header", tree->priv->full_header,
"sort_info", tree->priv->sort_info,
"dnd_code", pointer,
"tree", tree,
NULL);
g_free (pointer);
g_signal_connect (
tree->priv->header_canvas, "size_allocate",
G_CALLBACK (header_canvas_size_allocate), tree);
gtk_widget_set_size_request (
GTK_WIDGET (tree->priv->header_canvas), -1,
E_TABLE_HEADER_ITEM (tree->priv->header_item)->height);
}
static void
scroll_to_cursor (ETree *tree)
{
ETreePath path;
GtkAdjustment *adjustment;
GtkScrollable *scrollable;
gint x, y, w, h;
gdouble page_size;
gdouble lower;
gdouble upper;
gdouble value;
path = e_tree_get_cursor (tree);
x = y = w = h = 0;
if (path != NULL) {
ETreeTableAdapter *adapter;
gint row;
gint col = 0;
adapter = e_tree_get_table_adapter (tree);
row = e_tree_table_adapter_row_of_node (adapter, path);
if (row >= 0)
e_table_item_get_cell_geometry (
E_TABLE_ITEM (tree->priv->item),
&row, &col, &x, &y, &w, &h);
}
scrollable = GTK_SCROLLABLE (tree->priv->table_canvas);
adjustment = gtk_scrollable_get_vadjustment (scrollable);
page_size = gtk_adjustment_get_page_size (adjustment);
lower = gtk_adjustment_get_lower (adjustment);
upper = gtk_adjustment_get_upper (adjustment);
value = gtk_adjustment_get_value (adjustment);
if (y < value || y + h > value + page_size) {
value = CLAMP (y - page_size / 2, lower, upper - page_size);
gtk_adjustment_set_value (adjustment, value);
}
}
static gboolean
tree_canvas_reflow_idle (ETree *tree)
{
gdouble height, width;
gdouble oldheight, oldwidth;
GtkAllocation allocation;
GtkWidget *widget;
widget = GTK_WIDGET (tree->priv->table_canvas);
gtk_widget_get_allocation (widget, &allocation);
g_object_get (
tree->priv->item,
"height", &height, "width", &width, NULL);
height = MAX ((gint) height, allocation.height);
width = MAX ((gint) width, allocation.width);
/* I have no idea why this needs to be -1, but it works. */
gnome_canvas_get_scroll_region (
GNOME_CANVAS (tree->priv->table_canvas),
NULL, NULL, &oldwidth, &oldheight);
if (oldwidth != width - 1 ||
oldheight != height - 1) {
gnome_canvas_set_scroll_region (
GNOME_CANVAS (tree->priv->table_canvas),
0, 0, width - 1, height - 1);
set_header_canvas_width (tree);
}
tree->priv->reflow_idle_id = 0;
if (tree->priv->show_cursor_after_reflow) {
tree->priv->show_cursor_after_reflow = FALSE;
scroll_to_cursor (tree);
}
return FALSE;
}
static void
tree_canvas_size_allocate (GtkWidget *widget,
GtkAllocation *alloc,
ETree *tree)
{
gdouble width;
gdouble height;
GValue *val = g_new0 (GValue, 1);
g_value_init (val, G_TYPE_DOUBLE);
width = alloc->width;
g_value_set_double (val, width);
g_object_get (
tree->priv->item,
"height", &height,
NULL);
height = MAX ((gint) height, alloc->height);
g_object_set (
tree->priv->item,
"width", width,
NULL);
g_object_set_property (G_OBJECT (tree->priv->header), "width", val);
g_free (val);
if (tree->priv->reflow_idle_id)
g_source_remove (tree->priv->reflow_idle_id);
tree_canvas_reflow_idle (tree);
}
static void
tree_canvas_reflow (GnomeCanvas *canvas,
ETree *tree)
{
if (!tree->priv->reflow_idle_id)
tree->priv->reflow_idle_id = g_idle_add_full (
400, (GSourceFunc) tree_canvas_reflow_idle,
tree, NULL);
}
static void
item_cursor_change (ETableItem *eti,
gint row,
ETree *tree)
{
ETreePath path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
g_signal_emit (tree, signals[CURSOR_CHANGE], 0, row, path);
}
static void
item_cursor_activated (ETableItem *eti,
gint row,
ETree *tree)
{
ETreePath path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
g_signal_emit (tree, signals[CURSOR_ACTIVATED], 0, row, path);
}
static void
item_double_click (ETableItem *eti,
gint row,
gint col,
GdkEvent *event,
ETree *tree)
{
ETreePath path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
g_signal_emit (tree, signals[DOUBLE_CLICK], 0, row, path, col, event);
}
static gboolean
item_right_click (ETableItem *eti,
gint row,
gint col,
GdkEvent *event,
ETree *tree)
{
ETreePath path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
gboolean return_val = 0;
g_signal_emit (
tree, signals[RIGHT_CLICK], 0,
row, path, col, event, &return_val);
return return_val;
}
static gboolean
item_click (ETableItem *eti,
gint row,
gint col,
GdkEvent *event,
ETree *tree)
{
gboolean return_val = 0;
ETreePath path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
g_signal_emit (
tree, signals[CLICK], 0, row, path, col, event, &return_val);
return return_val;
}
static gint
item_key_press (ETableItem *eti,
gint row,
gint col,
GdkEvent *event,
ETree *tree)
{
gint return_val = 0;
GdkEventKey *key = (GdkEventKey *) event;
ETreePath path;
gint y, row_local, col_local;
GtkAdjustment *adjustment;
GtkScrollable *scrollable;
gdouble page_size;
gdouble upper;
gdouble value;
scrollable = GTK_SCROLLABLE (tree->priv->table_canvas);
adjustment = gtk_scrollable_get_vadjustment (scrollable);
page_size = gtk_adjustment_get_page_size (adjustment);
upper = gtk_adjustment_get_upper (adjustment);
value = gtk_adjustment_get_value (adjustment);
switch (key->keyval) {
case GDK_KEY_Page_Down:
case GDK_KEY_KP_Page_Down:
y = CLAMP (value + (2 * page_size - 50), 0, upper);
y -= value;
e_tree_get_cell_at (tree, 30, y, &row_local, &col_local);
if (row_local == -1)
row_local = e_table_model_row_count (
E_TABLE_MODEL (tree->priv->etta)) - 1;
row_local = e_tree_view_to_model_row (tree, row_local);
col_local = e_selection_model_cursor_col (
E_SELECTION_MODEL (tree->priv->selection));
e_selection_model_select_as_key_press (
E_SELECTION_MODEL (tree->priv->selection),
row_local, col_local, key->state);
return_val = 1;
break;
case GDK_KEY_Page_Up:
case GDK_KEY_KP_Page_Up:
y = CLAMP (value - (page_size - 50), 0, upper);
y -= value;
e_tree_get_cell_at (tree, 30, y, &row_local, &col_local);
if (row_local == -1)
row_local = e_table_model_row_count (
E_TABLE_MODEL (tree->priv->etta)) - 1;
row_local = e_tree_view_to_model_row (tree, row_local);
col_local = e_selection_model_cursor_col (
E_SELECTION_MODEL (tree->priv->selection));
e_selection_model_select_as_key_press (
E_SELECTION_MODEL (tree->priv->selection),
row_local, col_local, key->state);
return_val = 1;
break;
case GDK_KEY_plus:
case GDK_KEY_KP_Add:
case GDK_KEY_Right:
case GDK_KEY_KP_Right:
/* Only allow if the Shift modifier is used.
* eg. Ctrl-Equal shouldn't be handled. */
if ((key->state & (GDK_SHIFT_MASK | GDK_LOCK_MASK |
GDK_MOD1_MASK)) != GDK_SHIFT_MASK)
break;
if (row != -1) {
path = e_tree_table_adapter_node_at_row (
tree->priv->etta, row);
if (path)
e_tree_table_adapter_node_set_expanded (
tree->priv->etta, path, TRUE);
}
return_val = 1;
break;
case GDK_KEY_underscore:
case GDK_KEY_KP_Subtract:
case GDK_KEY_Left:
case GDK_KEY_KP_Left:
/* Only allow if the Shift modifier is used.
* eg. Ctrl-Minus shouldn't be handled. */
if ((key->state & (GDK_SHIFT_MASK | GDK_LOCK_MASK |
GDK_MOD1_MASK)) != GDK_SHIFT_MASK)
break;
if (row != -1) {
path = e_tree_table_adapter_node_at_row (
tree->priv->etta, row);
if (path)
e_tree_table_adapter_node_set_expanded (
tree->priv->etta, path, FALSE);
}
return_val = 1;
break;
case GDK_KEY_BackSpace:
if (e_table_search_backspace (tree->priv->search))
return TRUE;
/* Fallthrough */
default:
if ((key->state & ~(GDK_SHIFT_MASK | GDK_LOCK_MASK |
GDK_MOD1_MASK | GDK_MOD2_MASK | GDK_MOD3_MASK |
GDK_MOD4_MASK | GDK_MOD5_MASK)) == 0
&& ((key->keyval >= GDK_KEY_a && key->keyval <= GDK_KEY_z) ||
(key->keyval >= GDK_KEY_A && key->keyval <= GDK_KEY_Z) ||
(key->keyval >= GDK_KEY_0 && key->keyval <= GDK_KEY_9))) {
e_table_search_input_character (tree->priv->search, key->keyval);
}
path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
g_signal_emit (
tree,
signals[KEY_PRESS], 0,
row, path, col, event, &return_val);
break;
}
return return_val;
}
static gint
item_start_drag (ETableItem *eti,
gint row,
gint col,
GdkEvent *event,
ETree *tree)
{
ETreePath path;
gint return_val = 0;
path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
g_signal_emit (
tree, signals[START_DRAG], 0,
row, path, col, event, &return_val);
return return_val;
}
static void
et_selection_model_selection_changed (ETableSelectionModel *etsm,
ETree *tree)
{
g_signal_emit (tree, signals[SELECTION_CHANGE], 0);
}
static void
et_selection_model_selection_row_changed (ETableSelectionModel *etsm,
gint row,
ETree *tree)
{
g_signal_emit (tree, signals[SELECTION_CHANGE], 0);
}
static void
et_build_item (ETree *tree)
{
tree->priv->item = gnome_canvas_item_new (
GNOME_CANVAS_GROUP (
gnome_canvas_root (tree->priv->table_canvas)),
e_table_item_get_type (),
"ETableHeader", tree->priv->header,
"ETableModel", tree->priv->etta,
"selection_model", tree->priv->selection,
"alternating_row_colors", tree->priv->alternating_row_colors,
"horizontal_draw_grid", tree->priv->horizontal_draw_grid,
"vertical_draw_grid", tree->priv->vertical_draw_grid,
"drawfocus", tree->priv->draw_focus,
"cursor_mode", tree->priv->cursor_mode,
"length_threshold", tree->priv->length_threshold,
"uniform_row_height", tree->priv->uniform_row_height,
NULL);
g_signal_connect (
tree->priv->item, "cursor_change",
G_CALLBACK (item_cursor_change), tree);
g_signal_connect (
tree->priv->item, "cursor_activated",
G_CALLBACK (item_cursor_activated), tree);
g_signal_connect (
tree->priv->item, "double_click",
G_CALLBACK (item_double_click), tree);
g_signal_connect (
tree->priv->item, "right_click",
G_CALLBACK (item_right_click), tree);
g_signal_connect (
tree->priv->item, "click",
G_CALLBACK (item_click), tree);
g_signal_connect (
tree->priv->item, "key_press",
G_CALLBACK (item_key_press), tree);
g_signal_connect (
tree->priv->item, "start_drag",
G_CALLBACK (item_start_drag), tree);
}
static void
et_canvas_style_set (GtkWidget *widget,
GtkStyle *prev_style)
{
GtkStyle *style;
style = gtk_widget_get_style (widget);
gnome_canvas_item_set (
E_TREE (widget)->priv->white_item,
"fill_color_gdk", &style->base[GTK_STATE_NORMAL],
NULL);
}
static gboolean
white_item_event (GnomeCanvasItem *white_item,
GdkEvent *event,
ETree *tree)
{
gboolean return_val = 0;
g_signal_emit (
tree,
signals[WHITE_SPACE_EVENT], 0,
event, &return_val);
return return_val;
}
static gint
et_canvas_root_event (GnomeCanvasItem *root,
GdkEvent *event,
ETree *tree)
{
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
if (event->button.button != 4 && event->button.button != 5) {
if (gtk_widget_has_focus (GTK_WIDGET (root->canvas))) {
GnomeCanvasItem *item = GNOME_CANVAS (root->canvas)->focused_item;
if (E_IS_TABLE_ITEM (item)) {
e_table_item_leave_edit (E_TABLE_ITEM (item));
return TRUE;
}
}
}
break;
default:
break;
}
return FALSE;
}
/* Handler for focus events in the table_canvas; we have to repaint ourselves
* and give the focus to some ETableItem.
*/
static gboolean
table_canvas_focus_event_cb (GtkWidget *widget,
GdkEventFocus *event,
gpointer data)
{
GnomeCanvas *canvas;
ETree *tree;
gtk_widget_queue_draw (widget);
if (!event->in)
return TRUE;
canvas = GNOME_CANVAS (widget);
tree = E_TREE (data);
if (!canvas->focused_item ||
(e_selection_model_cursor_row (tree->priv->selection) == -1)) {
e_table_item_set_cursor (E_TABLE_ITEM (tree->priv->item), 0, 0);
gnome_canvas_item_grab_focus (tree->priv->item);
}
return TRUE;
}
static void
e_tree_setup_table (ETree *tree)
{
GtkWidget *widget;
GtkStyle *style;
tree->priv->table_canvas = GNOME_CANVAS (e_canvas_new ());
g_signal_connect (
tree->priv->table_canvas, "size_allocate",
G_CALLBACK (tree_canvas_size_allocate), tree);
g_signal_connect (
tree->priv->table_canvas, "focus_in_event",
G_CALLBACK (table_canvas_focus_event_cb), tree);
g_signal_connect (
tree->priv->table_canvas, "focus_out_event",
G_CALLBACK (table_canvas_focus_event_cb), tree);
g_signal_connect (
tree->priv->table_canvas, "drag_begin",
G_CALLBACK (et_drag_begin), tree);
g_signal_connect (
tree->priv->table_canvas, "drag_end",
G_CALLBACK (et_drag_end), tree);
g_signal_connect (
tree->priv->table_canvas, "drag_data_get",
G_CALLBACK (et_drag_data_get), tree);
g_signal_connect (
tree->priv->table_canvas, "drag_data_delete",
G_CALLBACK (et_drag_data_delete), tree);
g_signal_connect (
tree, "drag_motion",
G_CALLBACK (et_drag_motion), tree);
g_signal_connect (
tree, "drag_leave",
G_CALLBACK (et_drag_leave), tree);
g_signal_connect (
tree, "drag_drop",
G_CALLBACK (et_drag_drop), tree);
g_signal_connect (
tree, "drag_data_received",
G_CALLBACK (et_drag_data_received), tree);
g_signal_connect (
tree->priv->table_canvas, "reflow",
G_CALLBACK (tree_canvas_reflow), tree);
widget = GTK_WIDGET (tree->priv->table_canvas);
style = gtk_widget_get_style (widget);
gtk_widget_show (widget);
tree->priv->white_item = gnome_canvas_item_new (
gnome_canvas_root (tree->priv->table_canvas),
e_canvas_background_get_type (),
"fill_color_gdk", &style->base[GTK_STATE_NORMAL],
NULL);
g_signal_connect (
tree->priv->white_item, "event",
G_CALLBACK (white_item_event), tree);
g_signal_connect (
gnome_canvas_root (tree->priv->table_canvas), "event",
G_CALLBACK (et_canvas_root_event), tree);
et_build_item (tree);
}
void
e_tree_set_state_object (ETree *tree,
ETableState *state)
{
GValue *val;
GtkAllocation allocation;
GtkWidget *widget;
val = g_new0 (GValue, 1);
g_value_init (val, G_TYPE_DOUBLE);
connect_header (tree, state);
widget = GTK_WIDGET (tree->priv->table_canvas);
gtk_widget_get_allocation (widget, &allocation);
g_value_set_double (val, (gdouble) allocation.width);
g_object_set_property (G_OBJECT (tree->priv->header), "width", val);
g_free (val);
if (tree->priv->header_item)
g_object_set (
tree->priv->header_item,
"ETableHeader", tree->priv->header,
"sort_info", tree->priv->sort_info,
NULL);
if (tree->priv->item)
g_object_set (
tree->priv->item,
"ETableHeader", tree->priv->header,
NULL);
if (tree->priv->etta)
e_tree_table_adapter_set_sort_info (
tree->priv->etta, tree->priv->sort_info);
e_tree_state_change (tree);
}
/**
* e_tree_set_state:
* @e_tree: #ETree object that will be modified
* @state_str: a string with the XML representation of the #ETableState.
*
* This routine sets the state (as described by #ETableState) of the
* #ETree object.
*/
void
e_tree_set_state (ETree *tree,
const gchar *state_str)
{
ETableState *state;
g_return_if_fail (E_IS_TREE (tree));
g_return_if_fail (state_str != NULL);
state = e_table_state_new ();
e_table_state_load_from_string (state, state_str);
if (state->col_count > 0)
e_tree_set_state_object (tree, state);
g_object_unref (state);
}
/**
* e_tree_get_state_object:
* @e_tree: #ETree object to act on
*
* Builds an #ETableState corresponding to the current state of the
* #ETree.
*
* Return value:
* The %ETableState object generated.
**/
ETableState *
e_tree_get_state_object (ETree *tree)
{
ETableState *state;
gint full_col_count;
gint i, j;
state = e_table_state_new ();
state->sort_info = tree->priv->sort_info;
if (state->sort_info)
g_object_ref (state->sort_info);
state->col_count = e_table_header_count (tree->priv->header);
full_col_count = e_table_header_count (tree->priv->full_header);
state->columns = g_new (int, state->col_count);
state->expansions = g_new (double, state->col_count);
for (i = 0; i < state->col_count; i++) {
ETableCol *col = e_table_header_get_column (tree->priv->header, i);
state->columns[i] = -1;
for (j = 0; j < full_col_count; j++) {
if (col->col_idx == e_table_header_index (tree->priv->full_header, j)) {
state->columns[i] = j;
break;
}
}
state->expansions[i] = col->expansion;
}
return state;
}
/**
* e_tree_get_state:
* @e_tree: The #ETree to act on
*
* Builds a state object based on the current state and returns the
* string corresponding to that state.
*
* Return value:
* A string describing the current state of the #ETree.
**/
gchar *
e_tree_get_state (ETree *tree)
{
ETableState *state;
gchar *string;
state = e_tree_get_state_object (tree);
string = e_table_state_save_to_string (state);
g_object_unref (state);
return string;
}
/**
* e_tree_get_spec:
* @e_tree: The #ETree to query
*
* Returns the specification object.
*
* Return value:
**/
ETableSpecification *
e_tree_get_spec (ETree *tree)
{
g_return_val_if_fail (E_IS_TREE (tree), NULL);
return tree->priv->spec;
}
static void
et_table_model_changed (ETableModel *model,
ETree *tree)
{
if (tree->priv->horizontal_scrolling)
e_table_header_update_horizontal (tree->priv->header);
}
static void
et_table_row_changed (ETableModel *table_model,
gint row,
ETree *tree)
{
et_table_model_changed (table_model, tree);
}
static void
et_table_cell_changed (ETableModel *table_model,
gint view_col,
gint row,
ETree *tree)
{
et_table_model_changed (table_model, tree);
}
static void
et_table_rows_deleted (ETableModel *table_model,
gint row,
gint count,
ETree *tree)
{
ETreeTableAdapter *adapter;
ETreePath * node, * prev_node;
/* If the cursor is still valid after this deletion, we're done */
if (e_selection_model_cursor_row (tree->priv->selection) >= 0
|| row == 0)
return;
adapter = e_tree_get_table_adapter (tree);
prev_node = e_tree_table_adapter_node_at_row (adapter, row - 1);
node = e_tree_get_cursor (tree);
/* Check if the cursor is a child of the node directly before the
* deleted region (implying that an expander was collapsed with
* the cursor inside it) */
while (node) {
node = e_tree_model_node_get_parent (tree->priv->model, node);
if (node == prev_node) {
/* Set the cursor to the still-visible parent */
e_tree_set_cursor (tree, prev_node);
return;
}
}
}
static void
et_connect_to_etta (ETree *tree)
{
tree->priv->table_model_change_id = g_signal_connect (
tree->priv->etta, "model_changed",
G_CALLBACK (et_table_model_changed), tree);
tree->priv->table_row_change_id = g_signal_connect (
tree->priv->etta, "model_row_changed",
G_CALLBACK (et_table_row_changed), tree);
tree->priv->table_cell_change_id = g_signal_connect (
tree->priv->etta, "model_cell_changed",
G_CALLBACK (et_table_cell_changed), tree);
tree->priv->table_rows_delete_id = g_signal_connect (
tree->priv->etta, "model_rows_deleted",
G_CALLBACK (et_table_rows_deleted), tree);
}
static gboolean
et_real_construct (ETree *tree,
ETreeModel *etm,
ETableExtras *ete,
ETableSpecification *specification,
ETableState *state)
{
GtkAdjustment *adjustment;
GtkScrollable *scrollable;
gint row = 0;
if (ete)
g_object_ref (ete);
else
ete = e_table_extras_new ();
tree->priv->alternating_row_colors = specification->alternating_row_colors;
tree->priv->horizontal_draw_grid = specification->horizontal_draw_grid;
tree->priv->vertical_draw_grid = specification->vertical_draw_grid;
tree->priv->draw_focus = specification->draw_focus;
tree->priv->cursor_mode = specification->cursor_mode;
tree->priv->full_header = e_table_spec_to_full_header (specification, ete);
connect_header (tree, state);
tree->priv->horizontal_scrolling = specification->horizontal_scrolling;
tree->priv->model = etm;
g_object_ref (etm);
tree->priv->etta = E_TREE_TABLE_ADAPTER (
e_tree_table_adapter_new (
tree->priv->model,
tree->priv->sort_info,
tree->priv->full_header));
et_connect_to_etta (tree);
tree->priv->sorter = e_sorter_new ();
g_object_set (
tree->priv->selection,
"sorter", tree->priv->sorter,
"model", tree->priv->model,
"etta", tree->priv->etta,
"selection_mode", specification->selection_mode,
"cursor_mode", specification->cursor_mode,
NULL);
g_signal_connect (
tree->priv->selection, "selection_changed",
G_CALLBACK (et_selection_model_selection_changed), tree);
g_signal_connect (
tree->priv->selection, "selection_row_changed",
G_CALLBACK (et_selection_model_selection_row_changed), tree);
if (!specification->no_headers) {
e_tree_setup_header (tree);
}
e_tree_setup_table (tree);
scrollable = GTK_SCROLLABLE (tree->priv->table_canvas);
adjustment = gtk_scrollable_get_vadjustment (scrollable);
gtk_adjustment_set_step_increment (adjustment, 20);
adjustment = gtk_scrollable_get_hadjustment (scrollable);
gtk_adjustment_set_step_increment (adjustment, 20);
if (!specification->no_headers) {
/*
* The header
*/
gtk_table_attach (
GTK_TABLE (tree),
GTK_WIDGET (tree->priv->header_canvas),
0, 1, 0 + row, 1 + row,
GTK_FILL | GTK_EXPAND,
GTK_FILL, 0, 0);
row++;
}
gtk_table_attach (
GTK_TABLE (tree),
GTK_WIDGET (tree->priv->table_canvas),
0, 1, 0 + row, 1 + row,
GTK_FILL | GTK_EXPAND,
GTK_FILL | GTK_EXPAND,
0, 0);
g_object_unref (ete);
return TRUE;
}
/**
* e_tree_construct:
* @e_tree: The newly created #ETree object.
* @etm: The model for this table.
* @ete: An optional #ETableExtras. (%NULL is valid.)
* @spec_str: The spec.
* @state_str: An optional state. (%NULL is valid.)
*
* This is the internal implementation of e_tree_new() for use by
* subclasses or language bindings. See e_tree_new() for details.
*
* Return value: %TRUE on success, %FALSE if an error occurred
**/
gboolean
e_tree_construct (ETree *tree,
ETreeModel *etm,
ETableExtras *ete,
const gchar *spec_str,
const gchar *state_str)
{
ETableSpecification *specification;
ETableState *state;
g_return_val_if_fail (E_IS_TREE (tree), FALSE);
g_return_val_if_fail (E_IS_TREE_MODEL (etm), FALSE);
g_return_val_if_fail (ete == NULL || E_IS_TABLE_EXTRAS (ete), FALSE);
g_return_val_if_fail (spec_str != NULL, FALSE);
specification = e_table_specification_new ();
if (!e_table_specification_load_from_string (specification, spec_str)) {
g_object_unref (specification);
return FALSE;
}
if (state_str) {
state = e_table_state_new ();
e_table_state_load_from_string (state, state_str);
if (state->col_count <= 0) {
g_object_unref (state);
state = specification->state;
g_object_ref (state);
}
} else {
state = specification->state;
g_object_ref (state);
}
if (!et_real_construct (tree, etm, ete, specification, state)) {
g_object_unref (specification);
g_object_unref (state);
return FALSE;
}
tree->priv->spec = specification;
tree->priv->spec->allow_grouping = FALSE;
g_object_unref (state);
return TRUE;
}
/**
* e_tree_construct_from_spec_file:
* @e_tree: The newly created #ETree object.
* @etm: The model for this tree
* @ete: An optional #ETableExtras (%NULL is valid.)
* @spec_fn: The filename of the spec
* @state_fn: An optional state file (%NULL is valid.)
*
* This is the internal implementation of e_tree_new_from_spec_file()
* for use by subclasses or language bindings. See
* e_tree_new_from_spec_file() for details.
*
* Return value: %TRUE on success, %FALSE if an error occurred
**/
gboolean
e_tree_construct_from_spec_file (ETree *tree,
ETreeModel *etm,
ETableExtras *ete,
const gchar *spec_fn,
const gchar *state_fn)
{
ETableSpecification *specification;
ETableState *state;
g_return_val_if_fail (E_IS_TREE (tree), FALSE);
g_return_val_if_fail (E_IS_TREE_MODEL (etm), FALSE);
g_return_val_if_fail (ete == NULL || E_IS_TABLE_EXTRAS (ete), FALSE);
g_return_val_if_fail (spec_fn != NULL, FALSE);
specification = e_table_specification_new ();
if (!e_table_specification_load_from_file (specification, spec_fn)) {
g_object_unref (specification);
return FALSE;
}
if (state_fn) {
state = e_table_state_new ();
if (!e_table_state_load_from_file (state, state_fn)) {
g_object_unref (state);
state = specification->state;
g_object_ref (state);
}
if (state->col_count <= 0) {
g_object_unref (state);
state = specification->state;
g_object_ref (state);
}
} else {
state = specification->state;
g_object_ref (state);
}
if (!et_real_construct (tree, etm, ete, specification, state)) {
g_object_unref (specification);
g_object_unref (state);
return FALSE;
}
tree->priv->spec = specification;
tree->priv->spec->allow_grouping = FALSE;
g_object_unref (state);
return TRUE;
}
/**
* e_tree_new:
* @etm: The model for this tree
* @ete: An optional #ETableExtras (%NULL is valid.)
* @spec_str: The spec
* @state_str: An optional state (%NULL is valid.)
*
* This function creates an #ETree from the given parameters. The
* #ETreeModel is a tree model to be represented. The #ETableExtras
* is an optional set of pixbufs, cells, and sorting functions to be
* used when interpreting the spec. If you pass in %NULL it uses the
* default #ETableExtras. (See e_table_extras_new()).
*
* @spec is the specification of the set of viewable columns and the
* default sorting state and such. @state is an optional string
* specifying the current sorting state and such. If @state is NULL,
* then the default state from the spec will be used.
*
* Return value:
* The newly created #ETree or %NULL if there's an error.
**/
GtkWidget *
e_tree_new (ETreeModel *etm,
ETableExtras *ete,
const gchar *spec_str,
const gchar *state_str)
{
ETree *tree;
g_return_val_if_fail (E_IS_TREE_MODEL (etm), NULL);
g_return_val_if_fail (ete == NULL || E_IS_TABLE_EXTRAS (ete), NULL);
g_return_val_if_fail (spec_str != NULL, NULL);
tree = g_object_new (E_TYPE_TREE, NULL);
if (!e_tree_construct (tree, etm, ete, spec_str, state_str)) {
g_object_unref (tree);
return NULL;
}
return (GtkWidget *) tree;
}
/**
* e_tree_new_from_spec_file:
* @etm: The model for this tree.
* @ete: An optional #ETableExtras. (%NULL is valid.)
* @spec_fn: The filename of the spec.
* @state_fn: An optional state file. (%NULL is valid.)
*
* This is very similar to e_tree_new(), except instead of passing in
* strings you pass in the file names of the spec and state to load.
*
* @spec_fn is the filename of the spec to load. If this file doesn't
* exist, e_tree_new_from_spec_file will return %NULL.
*
* @state_fn is the filename of the initial state to load. If this is
* %NULL or if the specified file doesn't exist, the default state
* from the spec file is used.
*
* Return value:
* The newly created #ETree or %NULL if there's an error.
**/
GtkWidget *
e_tree_new_from_spec_file (ETreeModel *etm,
ETableExtras *ete,
const gchar *spec_fn,
const gchar *state_fn)
{
ETree *tree;
g_return_val_if_fail (E_IS_TREE_MODEL (etm), NULL);
g_return_val_if_fail (ete == NULL || E_IS_TABLE_EXTRAS (ete), NULL);
g_return_val_if_fail (spec_fn != NULL, NULL);
tree = g_object_new (E_TYPE_TREE, NULL);
if (!e_tree_construct_from_spec_file (tree, etm, ete, spec_fn, state_fn)) {
g_object_unref (tree);
return NULL;
}
return (GtkWidget *) tree;
}
void
e_tree_show_cursor_after_reflow (ETree *tree)
{
g_return_if_fail (E_IS_TREE (tree));
tree->priv->show_cursor_after_reflow = TRUE;
}
void
e_tree_set_cursor (ETree *tree,
ETreePath path)
{
g_return_if_fail (E_IS_TREE (tree));
g_return_if_fail (path != NULL);
e_tree_selection_model_select_single_path (
E_TREE_SELECTION_MODEL (tree->priv->selection), path);
e_tree_selection_model_change_cursor (
E_TREE_SELECTION_MODEL (tree->priv->selection), path);
}
ETreePath
e_tree_get_cursor (ETree *tree)
{
return e_tree_selection_model_get_cursor (
E_TREE_SELECTION_MODEL (tree->priv->selection));
}
/* Standard functions */
static void
et_foreach_recurse (ETreeModel *model,
ETreePath path,
ETreeForeachFunc callback,
gpointer closure)
{
ETreePath child;
callback (path, closure);
child = e_tree_model_node_get_first_child (E_TREE_MODEL (model), path);
for (; child; child = e_tree_model_node_get_next (E_TREE_MODEL (model), child))
if (child)
et_foreach_recurse (model, child, callback, closure);
}
void
e_tree_path_foreach (ETree *tree,
ETreeForeachFunc callback,
gpointer closure)
{
ETreePath root;
g_return_if_fail (E_IS_TREE (tree));
root = e_tree_model_get_root (tree->priv->model);
if (root)
et_foreach_recurse (tree->priv->model,
root,
callback,
closure);
}
static void
et_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
ETree *tree = E_TREE (object);
switch (property_id) {
case PROP_ETTA:
g_value_set_object (value, tree->priv->etta);
break;
case PROP_UNIFORM_ROW_HEIGHT:
g_value_set_boolean (value, tree->priv->uniform_row_height);
break;
case PROP_ALWAYS_SEARCH:
g_value_set_boolean (value, tree->priv->always_search);
break;
case PROP_HADJUSTMENT:
if (tree->priv->table_canvas)
g_object_get_property (
G_OBJECT (tree->priv->table_canvas),
"hadjustment", value);
else
g_value_set_object (value, NULL);
break;
case PROP_VADJUSTMENT:
if (tree->priv->table_canvas)
g_object_get_property (
G_OBJECT (tree->priv->table_canvas),
"vadjustment", value);
else
g_value_set_object (value, NULL);
break;
case PROP_HSCROLL_POLICY:
if (tree->priv->table_canvas)
g_object_get_property (
G_OBJECT (tree->priv->table_canvas),
"hscroll-policy", value);
else
g_value_set_enum (value, 0);
break;
case PROP_VSCROLL_POLICY:
if (tree->priv->table_canvas)
g_object_get_property (
G_OBJECT (tree->priv->table_canvas),
"vscroll-policy", value);
else
g_value_set_enum (value, 0);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
typedef struct {
gchar *arg;
gboolean setting;
} bool_closure;
static void
et_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
ETree *tree = E_TREE (object);
switch (property_id) {
case PROP_LENGTH_THRESHOLD:
tree->priv->length_threshold = g_value_get_int (value);
if (tree->priv->item) {
gnome_canvas_item_set (
GNOME_CANVAS_ITEM (tree->priv->item),
"length_threshold",
tree->priv->length_threshold,
NULL);
}
break;
case PROP_HORIZONTAL_DRAW_GRID:
tree->priv->horizontal_draw_grid = g_value_get_boolean (value);
if (tree->priv->item) {
gnome_canvas_item_set (
GNOME_CANVAS_ITEM (tree->priv->item),
"horizontal_draw_grid",
tree->priv->horizontal_draw_grid,
NULL);
}
break;
case PROP_VERTICAL_DRAW_GRID:
tree->priv->vertical_draw_grid = g_value_get_boolean (value);
if (tree->priv->item) {
gnome_canvas_item_set (
GNOME_CANVAS_ITEM (tree->priv->item),
"vertical_draw_grid",
tree->priv->vertical_draw_grid,
NULL);
}
break;
case PROP_DRAW_FOCUS:
tree->priv->draw_focus = g_value_get_boolean (value);
if (tree->priv->item) {
gnome_canvas_item_set (
GNOME_CANVAS_ITEM (tree->priv->item),
"drawfocus",
tree->priv->draw_focus,
NULL);
}
break;
case PROP_UNIFORM_ROW_HEIGHT:
tree->priv->uniform_row_height = g_value_get_boolean (value);
if (tree->priv->item) {
gnome_canvas_item_set (
GNOME_CANVAS_ITEM (tree->priv->item),
"uniform_row_height",
tree->priv->uniform_row_height,
NULL);
}
break;
case PROP_ALWAYS_SEARCH:
if (tree->priv->always_search == g_value_get_boolean (value))
return;
tree->priv->always_search = g_value_get_boolean (value);
clear_current_search_col (tree);
break;
case PROP_HADJUSTMENT:
if (tree->priv->table_canvas)
g_object_set_property (
G_OBJECT (tree->priv->table_canvas),
"hadjustment", value);
break;
case PROP_VADJUSTMENT:
if (tree->priv->table_canvas)
g_object_set_property (
G_OBJECT (tree->priv->table_canvas),
"vadjustment", value);
break;
case PROP_HSCROLL_POLICY:
if (tree->priv->table_canvas)
g_object_set_property (
G_OBJECT (tree->priv->table_canvas),
"hscroll-policy", value);
break;
case PROP_VSCROLL_POLICY:
if (tree->priv->table_canvas)
g_object_set_property (
G_OBJECT (tree->priv->table_canvas),
"vscroll-policy", value);
break;
}
}
gint
e_tree_get_prev_row (ETree *tree,
gint model_row)
{
g_return_val_if_fail (E_IS_TREE (tree), -1);
if (tree->priv->sorter) {
gint i;
i = e_sorter_model_to_sorted (E_SORTER (tree->priv->sorter), model_row);
i--;
if (i >= 0)
return e_sorter_sorted_to_model (E_SORTER (tree->priv->sorter), i);
else
return -1;
} else
return model_row - 1;
}
gint
e_tree_model_to_view_row (ETree *tree,
gint model_row)
{
g_return_val_if_fail (E_IS_TREE (tree), -1);
if (tree->priv->sorter)
return e_sorter_model_to_sorted (E_SORTER (tree->priv->sorter), model_row);
else
return model_row;
}
gint
e_tree_view_to_model_row (ETree *tree,
gint view_row)
{
g_return_val_if_fail (E_IS_TREE (tree), -1);
if (tree->priv->sorter)
return e_sorter_sorted_to_model (E_SORTER (tree->priv->sorter), view_row);
else
return view_row;
}
GtkWidget *
e_tree_get_tooltip (ETree *tree)
{
g_return_val_if_fail (E_IS_TREE (tree), NULL);
return E_CANVAS (tree->priv->table_canvas)->tooltip_window;
}
static ETreePath
find_next_in_range (ETree *tree,
gint start,
gint end,
ETreePathFunc func,
gpointer data)
{
ETreePath path;
gint row;
for (row = start; row <= end; row++) {
path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
if (path && func (tree->priv->model, path, data))
return path;
}
return NULL;
}
static ETreePath
find_prev_in_range (ETree *tree,
gint start,
gint end,
ETreePathFunc func,
gpointer data)
{
ETreePath path;
gint row;
for (row = start; row >= end; row--) {
path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
if (path && func (tree->priv->model, path, data))
return path;
}
return NULL;
}
gboolean
e_tree_find_next (ETree *tree,
ETreeFindNextParams params,
ETreePathFunc func,
gpointer data)
{
ETreePath cursor, found;
gint row, row_count;
cursor = e_tree_get_cursor (tree);
row = e_tree_table_adapter_row_of_node (tree->priv->etta, cursor);
row_count = e_table_model_row_count (E_TABLE_MODEL (tree->priv->etta));
if (params & E_TREE_FIND_NEXT_FORWARD)
found = find_next_in_range (tree, row + 1, row_count - 1, func, data);
else
found = find_prev_in_range (tree, row == -1 ? -1 : row - 1, 0, func, data);
if (found) {
e_tree_table_adapter_show_node (tree->priv->etta, found);
e_tree_set_cursor (tree, found);
return TRUE;
}
if (params & E_TREE_FIND_NEXT_WRAP) {
if (params & E_TREE_FIND_NEXT_FORWARD)
found = find_next_in_range (tree, 0, row, func, data);
else
found = find_prev_in_range (tree, row_count - 1, row, func, data);
if (found && found != cursor) {
e_tree_table_adapter_show_node (tree->priv->etta, found);
e_tree_set_cursor (tree, found);
return TRUE;
}
}
return FALSE;
}
/**
* e_tree_get_model:
* @et: the ETree
*
* Returns the model upon which this ETree is based.
*
* Returns: the model
**/
ETreeModel *
e_tree_get_model (ETree *tree)
{
g_return_val_if_fail (E_IS_TREE (tree), NULL);
return tree->priv->model;
}
/**
* e_tree_get_selection_model:
* @et: the ETree
*
* Returns the selection model of this ETree.
*
* Returns: the selection model
**/
ESelectionModel *
e_tree_get_selection_model (ETree *tree)
{
g_return_val_if_fail (E_IS_TREE (tree), NULL);
return tree->priv->selection;
}
/**
* e_tree_get_table_adapter:
* @et: the ETree
*
* Returns the table adapter this ETree uses.
*
* Returns: the model
**/
ETreeTableAdapter *
e_tree_get_table_adapter (ETree *tree)
{
g_return_val_if_fail (E_IS_TREE (tree), NULL);
return tree->priv->etta;
}
ETableItem *
e_tree_get_item (ETree *tree)
{
g_return_val_if_fail (E_IS_TREE (tree), NULL);
return E_TABLE_ITEM (tree->priv->item);
}
GnomeCanvasItem *
e_tree_get_header_item (ETree *tree)
{
g_return_val_if_fail (E_IS_TREE (tree), NULL);
return tree->priv->header_item;
}
struct _ETreeDragSourceSite
{
GdkModifierType start_button_mask;
GtkTargetList *target_list; /* Targets for drag data */
GdkDragAction actions; /* Possible actions */
GdkPixbuf *pixbuf; /* Icon for drag data */
/* Stored button press information to detect drag beginning */
gint state;
gint x, y;
gint row, col;
};
typedef enum
{
GTK_DRAG_STATUS_DRAG,
GTK_DRAG_STATUS_WAIT,
GTK_DRAG_STATUS_DROP
} GtkDragStatus;
typedef struct _GtkDragDestInfo GtkDragDestInfo;
typedef struct _GtkDragSourceInfo GtkDragSourceInfo;
struct _GtkDragDestInfo
{
GtkWidget *widget; /* Widget in which drag is in */
GdkDragContext *context; /* Drag context */
GtkDragSourceInfo *proxy_source; /* Set if this is a proxy drag */
GtkSelectionData *proxy_data; /* Set while retrieving proxied data */
guint dropped : 1; /* Set after we receive a drop */
guint32 proxy_drop_time; /* Timestamp for proxied drop */
guint proxy_drop_wait : 1; /* Set if we are waiting for a
* status reply before sending
* a proxied drop on.
*/
gint drop_x, drop_y; /* Position of drop */
};
struct _GtkDragSourceInfo
{
GtkWidget *widget;
GtkTargetList *target_list; /* Targets for drag data */
GdkDragAction possible_actions; /* Actions allowed by source */
GdkDragContext *context; /* drag context */
GtkWidget *icon_window; /* Window for drag */
GtkWidget *ipc_widget; /* GtkInvisible for grab, message passing */
GdkCursor *cursor; /* Cursor for drag */
gint hot_x, hot_y; /* Hot spot for drag */
gint button; /* mouse button starting drag */
GtkDragStatus status; /* drag status */
GdkEvent *last_event; /* motion event waiting for response */
gint start_x, start_y; /* Initial position */
gint cur_x, cur_y; /* Current Position */
GList *selections; /* selections we've claimed */
GtkDragDestInfo *proxy_dest; /* Set if this is a proxy drag */
guint drop_timeout; /* Timeout for aborting drop */
guint destroy_icon : 1; /* If true, destroy icon_window
*/
};
/* Drag & drop stuff. */
/* Source side */
static gint
et_real_start_drag (ETree *tree,
gint row,
ETreePath path,
gint col,
GdkEvent *event)
{
GtkDragSourceInfo *info;
GdkDragContext *context;
ETreeDragSourceSite *site;
if (tree->priv->do_drag) {
site = tree->priv->site;
site->state = 0;
context = e_tree_drag_begin (
tree, row, col,
site->target_list,
site->actions,
1, event);
if (context) {
info = g_dataset_get_data (context, "gtk-info");
if (info && !info->icon_window) {
if (site->pixbuf)
gtk_drag_set_icon_pixbuf (
context,
site->pixbuf,
-2, -2);
else
gtk_drag_set_icon_default (context);
}
}
return TRUE;
}
return FALSE;
}
void
e_tree_drag_source_set (ETree *tree,
GdkModifierType start_button_mask,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions)
{
ETreeDragSourceSite *site;
GtkWidget *canvas;
g_return_if_fail (E_IS_TREE (tree));
canvas = GTK_WIDGET (tree->priv->table_canvas);
site = tree->priv->site;
tree->priv->do_drag = TRUE;
gtk_widget_add_events (
canvas,
gtk_widget_get_events (canvas) |
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON_MOTION_MASK | GDK_STRUCTURE_MASK);
if (site) {
if (site->target_list)
gtk_target_list_unref (site->target_list);
} else {
site = g_new0 (ETreeDragSourceSite, 1);
tree->priv->site = site;
}
site->start_button_mask = start_button_mask;
if (targets)
site->target_list = gtk_target_list_new (targets, n_targets);
else
site->target_list = NULL;
site->actions = actions;
}
void
e_tree_drag_source_unset (ETree *tree)
{
ETreeDragSourceSite *site;
g_return_if_fail (E_IS_TREE (tree));
site = tree->priv->site;
if (site) {
if (site->target_list)
gtk_target_list_unref (site->target_list);
g_free (site);
tree->priv->site = NULL;
}
}
/* There probably should be functions for setting the targets
* as a GtkTargetList
*/
GdkDragContext *
e_tree_drag_begin (ETree *tree,
gint row,
gint col,
GtkTargetList *targets,
GdkDragAction actions,
gint button,
GdkEvent *event)
{
ETreePath path;
g_return_val_if_fail (E_IS_TREE (tree), NULL);
path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
tree->priv->drag_row = row;
tree->priv->drag_path = path;
tree->priv->drag_col = col;
return gtk_drag_begin (
GTK_WIDGET (tree->priv->table_canvas),
targets,
actions,
button,
event);
}
/**
* e_tree_is_dragging:
* @tree: An #ETree widget
*
* Returns whether is @tree in a drag&drop operation.
**/
gboolean
e_tree_is_dragging (ETree *tree)
{
g_return_val_if_fail (E_IS_TREE (tree), FALSE);
return tree->priv->is_dragging;
}
/**
* e_tree_get_cell_at:
* @tree: An ETree widget
* @x: X coordinate for the pixel
* @y: Y coordinate for the pixel
* @row_return: Pointer to return the row value
* @col_return: Pointer to return the column value
*
* Return the row and column for the cell in which the pixel at (@x, @y) is
* contained.
**/
void
e_tree_get_cell_at (ETree *tree,
gint x,
gint y,
gint *row_return,
gint *col_return)
{
GtkAdjustment *adjustment;
GtkScrollable *scrollable;
g_return_if_fail (E_IS_TREE (tree));
g_return_if_fail (row_return != NULL);
g_return_if_fail (col_return != NULL);
/* FIXME it would be nice if it could handle a NULL row_return or
* col_return gracefully. */
if (row_return)
*row_return = -1;
if (col_return)
*col_return = -1;
scrollable = GTK_SCROLLABLE (tree->priv->table_canvas);
adjustment = gtk_scrollable_get_hadjustment (scrollable);
x += gtk_adjustment_get_value (adjustment);
adjustment = gtk_scrollable_get_vadjustment (scrollable);
y += gtk_adjustment_get_value (adjustment);
e_table_item_compute_location (
E_TABLE_ITEM (tree->priv->item),
&x, &y, row_return, col_return);
}
/**
* e_tree_get_cell_geometry:
* @tree: The tree.
* @row: The row to get the geometry of.
* @col: The col to get the geometry of.
* @x_return: Returns the x coordinate of the upper right hand corner
* of the cell with respect to the widget.
* @y_return: Returns the y coordinate of the upper right hand corner
* of the cell with respect to the widget.
* @width_return: Returns the width of the cell.
* @height_return: Returns the height of the cell.
*
* Computes the data about this cell.
**/
void
e_tree_get_cell_geometry (ETree *tree,
gint row,
gint col,
gint *x_return,
gint *y_return,
gint *width_return,
gint *height_return)
{
GtkAdjustment *adjustment;
GtkScrollable *scrollable;
g_return_if_fail (E_IS_TREE (tree));
g_return_if_fail (row >= 0);
g_return_if_fail (col >= 0);
/* FIXME it would be nice if it could handle a NULL row_return or
* col_return gracefully. */
e_table_item_get_cell_geometry (
E_TABLE_ITEM (tree->priv->item),
&row, &col, x_return, y_return,
width_return, height_return);
scrollable = GTK_SCROLLABLE (tree->priv->table_canvas);
if (x_return) {
adjustment = gtk_scrollable_get_hadjustment (scrollable);
(*x_return) -= gtk_adjustment_get_value (adjustment);
}
if (y_return) {
adjustment = gtk_scrollable_get_vadjustment (scrollable);
(*y_return) -= gtk_adjustment_get_value (adjustment);
}
}
static void
et_drag_begin (GtkWidget *widget,
GdkDragContext *context,
ETree *tree)
{
tree->priv->is_dragging = TRUE;
g_signal_emit (
tree,
signals[TREE_DRAG_BEGIN], 0,
tree->priv->drag_row,
tree->priv->drag_path,
tree->priv->drag_col,
context);
}
static void
et_drag_end (GtkWidget *widget,
GdkDragContext *context,
ETree *tree)
{
tree->priv->is_dragging = FALSE;
g_signal_emit (
tree,
signals[TREE_DRAG_END], 0,
tree->priv->drag_row,
tree->priv->drag_path,
tree->priv->drag_col,
context);
}
static void
et_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
ETree *tree)
{
g_signal_emit (
tree,
signals[TREE_DRAG_DATA_GET], 0,
tree->priv->drag_row,
tree->priv->drag_path,
tree->priv->drag_col,
context,
selection_data,
info,
time);
}
static void
et_drag_data_delete (GtkWidget *widget,
GdkDragContext *context,
ETree *tree)
{
g_signal_emit (
tree,
signals[TREE_DRAG_DATA_DELETE], 0,
tree->priv->drag_row,
tree->priv->drag_path,
tree->priv->drag_col,
context);
}
static gboolean
do_drag_motion (ETree *tree,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
gboolean ret_val = FALSE;
gint row, col;
ETreePath path;
e_tree_get_cell_at (tree, x, y, &row, &col);
if (row != tree->priv->drop_row && col != tree->priv->drop_col) {
g_signal_emit (
tree, signals[TREE_DRAG_LEAVE], 0,
tree->priv->drop_row,
tree->priv->drop_path,
tree->priv->drop_col,
context,
time);
}
path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
tree->priv->drop_row = row;
tree->priv->drop_path = path;
tree->priv->drop_col = col;
g_signal_emit (
tree, signals[TREE_DRAG_MOTION], 0,
tree->priv->drop_row,
tree->priv->drop_path,
tree->priv->drop_col,
context,
x, y,
time,
&ret_val);
return ret_val;
}
static gboolean
scroll_timeout (gpointer data)
{
ETree *tree = data;
gint dx = 0, dy = 0;
GtkAdjustment *adjustment;
GtkScrollable *scrollable;
gdouble old_h_value;
gdouble new_h_value;
gdouble old_v_value;
gdouble new_v_value;
gdouble page_size;
gdouble lower;
gdouble upper;
if (tree->priv->scroll_direction & ET_SCROLL_DOWN)
dy += 20;
if (tree->priv->scroll_direction & ET_SCROLL_UP)
dy -= 20;
if (tree->priv->scroll_direction & ET_SCROLL_RIGHT)
dx += 20;
if (tree->priv->scroll_direction & ET_SCROLL_LEFT)
dx -= 20;
scrollable = GTK_SCROLLABLE (tree->priv->table_canvas);
adjustment = gtk_scrollable_get_hadjustment (scrollable);
page_size = gtk_adjustment_get_page_size (adjustment);
lower = gtk_adjustment_get_lower (adjustment);
upper = gtk_adjustment_get_upper (adjustment);
old_h_value = gtk_adjustment_get_value (adjustment);
new_h_value = CLAMP (old_h_value + dx, lower, upper - page_size);
gtk_adjustment_set_value (adjustment, new_h_value);
adjustment = gtk_scrollable_get_vadjustment (scrollable);
page_size = gtk_adjustment_get_page_size (adjustment);
lower = gtk_adjustment_get_lower (adjustment);
upper = gtk_adjustment_get_upper (adjustment);
old_v_value = gtk_adjustment_get_value (adjustment);
new_v_value = CLAMP (old_v_value + dy, lower, upper - page_size);
gtk_adjustment_set_value (adjustment, new_v_value);
if (new_h_value != old_h_value || new_v_value != old_v_value)
do_drag_motion (
tree,
tree->priv->last_drop_context,
tree->priv->last_drop_x,
tree->priv->last_drop_y,
tree->priv->last_drop_time);
return TRUE;
}
static void
scroll_on (ETree *tree,
guint scroll_direction)
{
if (tree->priv->scroll_idle_id == 0 ||
scroll_direction != tree->priv->scroll_direction) {
if (tree->priv->scroll_idle_id != 0)
g_source_remove (tree->priv->scroll_idle_id);
tree->priv->scroll_direction = scroll_direction;
tree->priv->scroll_idle_id = g_timeout_add (100, scroll_timeout, tree);
}
}
static void
scroll_off (ETree *tree)
{
if (tree->priv->scroll_idle_id) {
g_source_remove (tree->priv->scroll_idle_id);
tree->priv->scroll_idle_id = 0;
}
}
static gboolean
hover_timeout (gpointer data)
{
ETree *tree = data;
gint x = tree->priv->hover_x;
gint y = tree->priv->hover_y;
gint row, col;
ETreePath path;
e_tree_get_cell_at (tree, x, y, &row, &col);
path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
if (path && e_tree_model_node_is_expandable (tree->priv->model, path)) {
if (!e_tree_table_adapter_node_is_expanded (tree->priv->etta, path)) {
tree->priv->expanded_list = g_list_prepend (
tree->priv->expanded_list,
e_tree_model_get_save_id (
tree->priv->model, path));
e_tree_table_adapter_node_set_expanded (
tree->priv->etta, path, TRUE);
}
}
return TRUE;
}
static void
hover_on (ETree *tree,
gint x,
gint y)
{
tree->priv->hover_x = x;
tree->priv->hover_y = y;
if (tree->priv->hover_idle_id != 0)
g_source_remove (tree->priv->hover_idle_id);
tree->priv->hover_idle_id = g_timeout_add (500, hover_timeout, tree);
}
static void
hover_off (ETree *tree)
{
if (tree->priv->hover_idle_id) {
g_source_remove (tree->priv->hover_idle_id);
tree->priv->hover_idle_id = 0;
}
}
static void
collapse_drag (ETree *tree,
ETreePath drop)
{
GList *list;
/* We only want to leave open parents of the node dropped in.
* Not the node itself. */
if (drop) {
drop = e_tree_model_node_get_parent (tree->priv->model, drop);
}
for (list = tree->priv->expanded_list; list; list = list->next) {
gchar *save_id = list->data;
ETreePath path;
path = e_tree_model_get_node_by_id (tree->priv->model, save_id);
if (path) {
ETreePath search;
gboolean found = FALSE;
for (search = drop; search;
search = e_tree_model_node_get_parent (
tree->priv->model, search)) {
if (path == search) {
found = TRUE;
break;
}
}
if (!found)
e_tree_table_adapter_node_set_expanded (
tree->priv->etta, path, FALSE);
}
g_free (save_id);
}
g_list_free (tree->priv->expanded_list);
tree->priv->expanded_list = NULL;
}
static void
context_destroyed (gpointer data,
GObject *ctx)
{
ETree *tree = data;
if (tree->priv) {
tree->priv->last_drop_x = 0;
tree->priv->last_drop_y = 0;
tree->priv->last_drop_time = 0;
tree->priv->last_drop_context = NULL;
collapse_drag (tree, NULL);
scroll_off (tree);
hover_off (tree);
}
g_object_unref (tree);
}
static void
context_connect (ETree *tree,
GdkDragContext *context)
{
if (context == tree->priv->last_drop_context)
return;
if (tree->priv->last_drop_context)
g_object_weak_unref (
G_OBJECT (tree->priv->last_drop_context),
context_destroyed, tree);
else
g_object_ref (tree);
g_object_weak_ref (G_OBJECT (context), context_destroyed, tree);
}
static void
et_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time,
ETree *tree)
{
g_signal_emit (
tree,
signals[TREE_DRAG_LEAVE], 0,
tree->priv->drop_row,
tree->priv->drop_path,
tree->priv->drop_col,
context,
time);
tree->priv->drop_row = -1;
tree->priv->drop_col = -1;
scroll_off (tree);
hover_off (tree);
}
static gboolean
et_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETree *tree)
{
GtkAllocation allocation;
gint ret_val;
guint direction = 0;
tree->priv->last_drop_x = x;
tree->priv->last_drop_y = y;
tree->priv->last_drop_time = time;
context_connect (tree, context);
tree->priv->last_drop_context = context;
if (tree->priv->hover_idle_id != 0) {
if (abs (tree->priv->hover_x - x) > 3 ||
abs (tree->priv->hover_y - y) > 3) {
hover_on (tree, x, y);
}
} else {
hover_on (tree, x, y);
}
ret_val = do_drag_motion (tree, context, x, y, time);
gtk_widget_get_allocation (widget, &allocation);
if (y < 20)
direction |= ET_SCROLL_UP;
if (y > allocation.height - 20)
direction |= ET_SCROLL_DOWN;
if (x < 20)
direction |= ET_SCROLL_LEFT;
if (x > allocation.width - 20)
direction |= ET_SCROLL_RIGHT;
if (direction != 0)
scroll_on (tree, direction);
else
scroll_off (tree);
return ret_val;
}
static gboolean
et_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETree *tree)
{
gboolean ret_val = FALSE;
gint row, col;
ETreePath path;
e_tree_get_cell_at (tree, x, y, &row, &col);
path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
if (row != tree->priv->drop_row && col != tree->priv->drop_row) {
g_signal_emit (
tree, signals[TREE_DRAG_LEAVE], 0,
tree->priv->drop_row,
tree->priv->drop_path,
tree->priv->drop_col,
context,
time);
g_signal_emit (
tree, signals[TREE_DRAG_MOTION], 0,
row,
path,
col,
context,
x,
y,
time,
&ret_val);
}
tree->priv->drop_row = row;
tree->priv->drop_path = path;
tree->priv->drop_col = col;
g_signal_emit (
tree, signals[TREE_DRAG_DROP], 0,
tree->priv->drop_row,
tree->priv->drop_path,
tree->priv->drop_col,
context,
x,
y,
time,
&ret_val);
tree->priv->drop_row = -1;
tree->priv->drop_path = NULL;
tree->priv->drop_col = -1;
collapse_drag (tree, path);
scroll_off (tree);
return ret_val;
}
static void
et_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time,
ETree *tree)
{
gint row, col;
ETreePath path;
e_tree_get_cell_at (tree, x, y, &row, &col);
path = e_tree_table_adapter_node_at_row (tree->priv->etta, row);
g_signal_emit (
tree, signals[TREE_DRAG_DATA_RECEIVED], 0,
row,
path,
col,
context,
x,
y,
selection_data,
info,
time);
}
static void
e_tree_class_init (ETreeClass *class)
{
GObjectClass *object_class;
GtkWidgetClass *widget_class;
g_type_class_add_private (class, sizeof (ETreePrivate));
object_class = G_OBJECT_CLASS (class);
object_class->dispose = et_dispose;
object_class->set_property = et_set_property;
object_class->get_property = et_get_property;
widget_class = GTK_WIDGET_CLASS (class);
widget_class->grab_focus = et_grab_focus;
widget_class->unrealize = et_unrealize;
widget_class->style_set = et_canvas_style_set;
widget_class->focus = et_focus;
class->start_drag = et_real_start_drag;
signals[CURSOR_CHANGE] = g_signal_new (
"cursor_change",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, cursor_change),
NULL, NULL,
e_marshal_NONE__INT_POINTER,
G_TYPE_NONE, 2,
G_TYPE_INT,
G_TYPE_POINTER);
signals[CURSOR_ACTIVATED] = g_signal_new (
"cursor_activated",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, cursor_activated),
NULL, NULL,
e_marshal_NONE__INT_POINTER,
G_TYPE_NONE, 2,
G_TYPE_INT,
G_TYPE_POINTER);
signals[SELECTION_CHANGE] = g_signal_new (
"selection_change",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, selection_change),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[DOUBLE_CLICK] = g_signal_new (
"double_click",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, double_click),
NULL, NULL,
e_marshal_NONE__INT_POINTER_INT_BOXED,
G_TYPE_NONE, 4,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
signals[RIGHT_CLICK] = g_signal_new (
"right_click",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, right_click),
g_signal_accumulator_true_handled, NULL,
e_marshal_BOOLEAN__INT_POINTER_INT_BOXED,
G_TYPE_BOOLEAN, 4,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
signals[CLICK] = g_signal_new (
"click",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, click),
g_signal_accumulator_true_handled, NULL,
e_marshal_BOOLEAN__INT_POINTER_INT_BOXED,
G_TYPE_BOOLEAN, 4,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
signals[KEY_PRESS] = g_signal_new (
"key_press",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, key_press),
g_signal_accumulator_true_handled, NULL,
e_marshal_BOOLEAN__INT_POINTER_INT_BOXED,
G_TYPE_BOOLEAN, 4,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
signals[START_DRAG] = g_signal_new (
"start_drag",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, start_drag),
NULL, NULL,
e_marshal_NONE__INT_POINTER_INT_BOXED,
G_TYPE_NONE, 4,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
signals[STATE_CHANGE] = g_signal_new (
"state_change",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, state_change),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[WHITE_SPACE_EVENT] = g_signal_new (
"white_space_event",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, white_space_event),
g_signal_accumulator_true_handled, NULL,
e_marshal_BOOLEAN__POINTER,
G_TYPE_BOOLEAN, 1,
GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
signals[TREE_DRAG_BEGIN] = g_signal_new (
"tree_drag_begin",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, tree_drag_begin),
NULL, NULL,
e_marshal_NONE__INT_POINTER_INT_BOXED,
G_TYPE_NONE, 4,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_DRAG_CONTEXT);
signals[TREE_DRAG_END] = g_signal_new (
"tree_drag_end",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, tree_drag_end),
NULL, NULL,
e_marshal_NONE__INT_POINTER_INT_BOXED,
G_TYPE_NONE, 4,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_DRAG_CONTEXT);
signals[TREE_DRAG_DATA_GET] = g_signal_new (
"tree_drag_data_get",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, tree_drag_data_get),
NULL, NULL,
e_marshal_NONE__INT_POINTER_INT_OBJECT_BOXED_UINT_UINT,
G_TYPE_NONE, 7,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_DRAG_CONTEXT,
GTK_TYPE_SELECTION_DATA | G_SIGNAL_TYPE_STATIC_SCOPE,
G_TYPE_UINT,
G_TYPE_UINT);
signals[TREE_DRAG_DATA_DELETE] = g_signal_new (
"tree_drag_data_delete",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, tree_drag_data_delete),
NULL, NULL,
e_marshal_NONE__INT_POINTER_INT_OBJECT,
G_TYPE_NONE, 4,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_DRAG_CONTEXT);
signals[TREE_DRAG_LEAVE] = g_signal_new (
"tree_drag_leave",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, tree_drag_leave),
NULL, NULL,
e_marshal_NONE__INT_POINTER_INT_OBJECT_UINT,
G_TYPE_NONE, 5,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_DRAG_CONTEXT,
G_TYPE_UINT);
signals[TREE_DRAG_MOTION] = g_signal_new (
"tree_drag_motion",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, tree_drag_motion),
NULL, NULL,
e_marshal_BOOLEAN__INT_POINTER_INT_OBJECT_INT_INT_UINT,
G_TYPE_BOOLEAN, 7,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_DRAG_CONTEXT,
G_TYPE_INT,
G_TYPE_INT,
G_TYPE_UINT);
signals[TREE_DRAG_DROP] = g_signal_new (
"tree_drag_drop",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, tree_drag_drop),
NULL, NULL,
e_marshal_BOOLEAN__INT_POINTER_INT_OBJECT_INT_INT_UINT,
G_TYPE_BOOLEAN, 7,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_DRAG_CONTEXT,
G_TYPE_INT,
G_TYPE_INT,
G_TYPE_UINT);
signals[TREE_DRAG_DATA_RECEIVED] = g_signal_new (
"tree_drag_data_received",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, tree_drag_data_received),
NULL, NULL,
e_marshal_NONE__INT_POINTER_INT_OBJECT_INT_INT_BOXED_UINT_UINT,
G_TYPE_NONE, 9,
G_TYPE_INT,
G_TYPE_POINTER,
G_TYPE_INT,
GDK_TYPE_DRAG_CONTEXT,
G_TYPE_INT,
G_TYPE_INT,
GTK_TYPE_SELECTION_DATA,
G_TYPE_UINT,
G_TYPE_UINT);
g_object_class_install_property (
object_class,
PROP_LENGTH_THRESHOLD,
g_param_spec_int (
"length_threshold",
"Length Threshold",
"Length Threshold",
0, G_MAXINT, 0,
G_PARAM_WRITABLE));
g_object_class_install_property (
object_class,
PROP_HORIZONTAL_DRAW_GRID,
g_param_spec_boolean (
"horizontal_draw_grid",
"Horizontal Draw Grid",
"Horizontal Draw Grid",
FALSE,
G_PARAM_WRITABLE));
g_object_class_install_property (
object_class,
PROP_VERTICAL_DRAW_GRID,
g_param_spec_boolean (
"vertical_draw_grid",
"Vertical Draw Grid",
"Vertical Draw Grid",
FALSE,
G_PARAM_WRITABLE));
g_object_class_install_property (
object_class,
PROP_DRAW_FOCUS,
g_param_spec_boolean (
"drawfocus",
"Draw focus",
"Draw focus",
FALSE,
G_PARAM_WRITABLE));
g_object_class_install_property (
object_class,
PROP_ETTA,
g_param_spec_object (
"ETreeTableAdapter",
"ETree table adapter",
"ETree table adapter",
E_TYPE_TREE_TABLE_ADAPTER,
G_PARAM_READABLE));
g_object_class_install_property (
object_class,
PROP_UNIFORM_ROW_HEIGHT,
g_param_spec_boolean (
"uniform_row_height",
"Uniform row height",
"Uniform row height",
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_ALWAYS_SEARCH,
g_param_spec_boolean (
"always_search",
"Always search",
"Always search",
FALSE,
G_PARAM_READWRITE));
gtk_widget_class_install_style_property (
widget_class,
g_param_spec_int (
"expander_size",
"Expander Size",
"Size of the expander arrow",
0, G_MAXINT, 10,
G_PARAM_READABLE));
gtk_widget_class_install_style_property (
widget_class,
g_param_spec_int (
"vertical-spacing",
"Vertical Row Spacing",
"Vertical space between rows. "
"It is added to top and to bottom of a row",
0, G_MAXINT, 3,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS));
/* Scrollable interface */
g_object_class_override_property (
object_class, PROP_HADJUSTMENT, "hadjustment");
g_object_class_override_property (
object_class, PROP_VADJUSTMENT, "vadjustment");
g_object_class_override_property (
object_class, PROP_HSCROLL_POLICY, "hscroll-policy");
g_object_class_override_property (
object_class, PROP_VSCROLL_POLICY, "vscroll-policy");
gal_a11y_e_tree_init ();
}
static void
tree_size_allocate (GtkWidget *widget,
GtkAllocation *alloc,
ETree *tree)
{
gdouble width;
g_return_if_fail (E_IS_TREE (tree));
g_return_if_fail (tree->priv->info_text != NULL);
gnome_canvas_get_scroll_region (
GNOME_CANVAS (tree->priv->table_canvas),
NULL, NULL, &width, NULL);
width -= 60.0;
g_object_set (
tree->priv->info_text, "width", width,
"clip_width", width, NULL);
}
/**
* e_tree_set_info_message:
* @tree: #ETree instance
* @info_message: Message to set. Can be NULL.
*
* Creates an info message in table area, or removes old.
**/
void
e_tree_set_info_message (ETree *tree,
const gchar *info_message)
{
GtkAllocation allocation;
GtkWidget *widget;
g_return_if_fail (E_IS_TREE (tree));
if (!tree->priv->info_text && (!info_message || !*info_message))
return;
if (!info_message || !*info_message) {
g_signal_handler_disconnect (tree, tree->priv->info_text_resize_id);
g_object_run_dispose (G_OBJECT (tree->priv->info_text));
tree->priv->info_text = NULL;
return;
}
widget = GTK_WIDGET (tree->priv->table_canvas);
gtk_widget_get_allocation (widget, &allocation);
if (!tree->priv->info_text) {
if (allocation.width > 60) {
tree->priv->info_text = gnome_canvas_item_new (
GNOME_CANVAS_GROUP (gnome_canvas_root (tree->priv->table_canvas)),
e_text_get_type (),
"line_wrap", TRUE,
"clip", TRUE,
"justification", GTK_JUSTIFY_LEFT,
"text", info_message,
"width", (gdouble) allocation.width - 60.0,
"clip_width", (gdouble) allocation.width - 60.0,
NULL);
e_canvas_item_move_absolute (tree->priv->info_text, 30, 30);
tree->priv->info_text_resize_id = g_signal_connect (
tree, "size_allocate",
G_CALLBACK (tree_size_allocate), tree);
}
} else
gnome_canvas_item_set (tree->priv->info_text, "text", info_message, NULL);
}
void
e_tree_freeze_state_change (ETree *tree)
{
g_return_if_fail (E_IS_TREE (tree));
tree->priv->state_change_freeze++;
if (tree->priv->state_change_freeze == 1)
tree->priv->state_changed = FALSE;
g_return_if_fail (tree->priv->state_change_freeze != 0);
}
void
e_tree_thaw_state_change (ETree *tree)
{
g_return_if_fail (E_IS_TREE (tree));
g_return_if_fail (tree->priv->state_change_freeze != 0);
tree->priv->state_change_freeze--;
if (tree->priv->state_change_freeze == 0 && tree->priv->state_changed) {
tree->priv->state_changed = FALSE;
e_tree_state_change (tree);
}
}