/*
* 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)
*
*/
#include
#include
#include
#include
#include
#include
#include
#include "gal-a11y-e-tree.h"
#include
#include "e-util/e-util.h"
#include "misc/e-canvas.h"
#include "misc/e-canvas-utils.h"
#include "misc/e-canvas-background.h"
#include "text/e-text.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"
#ifdef E_TREE_USE_TREE_SELECTION
#include "e-tree-selection-model.h"
#else
#include "e-table-selection-model.h"
#endif
#include "e-tree.h"
#include "e-tree-table-adapter.h"
#define COLUMN_HEADER_HEIGHT 16
#define d(x)
#if d(!)0
#define e_table_item_leave_edit_(x) (e_table_item_leave_edit((x)), g_print ("%s: e_table_item_leave_edit\n", __FUNCTION__))
#else
#define e_table_item_leave_edit_(x) (e_table_item_leave_edit((x)))
#endif
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
};
enum {
ET_SCROLL_UP = 1 << 0,
ET_SCROLL_DOWN = 1 << 1,
ET_SCROLL_LEFT = 1 << 2,
ET_SCROLL_RIGHT = 1 << 3
};
struct ETreePriv {
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;
};
static guint et_signals [LAST_SIGNAL] = { 0, };
static void et_grab_focus (GtkWidget *widget);
static void et_drag_begin (GtkWidget *widget,
GdkDragContext *context,
ETree *et);
static void et_drag_end (GtkWidget *widget,
GdkDragContext *context,
ETree *et);
static void et_drag_data_get(GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
ETree *et);
static void et_drag_data_delete(GtkWidget *widget,
GdkDragContext *context,
ETree *et);
static void et_drag_leave(GtkWidget *widget,
GdkDragContext *context,
guint time,
ETree *et);
static gboolean et_drag_motion(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETree *et);
static gboolean et_drag_drop(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETree *et);
static void et_drag_data_received(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time,
ETree *et);
static void scroll_off (ETree *et);
static void scroll_on (ETree *et, guint scroll_direction);
static void hover_off (ETree *et);
static void hover_on (ETree *et, gint x, gint y);
static void context_destroyed (gpointer data, GObject *ctx);
G_DEFINE_TYPE (ETree, e_tree, GTK_TYPE_TABLE)
static void
et_disconnect_from_etta (ETree *et)
{
if (et->priv->table_model_change_id != 0)
g_signal_handler_disconnect (G_OBJECT (et->priv->etta),
et->priv->table_model_change_id);
if (et->priv->table_row_change_id != 0)
g_signal_handler_disconnect (G_OBJECT (et->priv->etta),
et->priv->table_row_change_id);
if (et->priv->table_cell_change_id != 0)
g_signal_handler_disconnect (G_OBJECT (et->priv->etta),
et->priv->table_cell_change_id);
if (et->priv->table_rows_delete_id != 0)
g_signal_handler_disconnect (G_OBJECT (et->priv->etta),
et->priv->table_rows_delete_id);
et->priv->table_model_change_id = 0;
et->priv->table_row_change_id = 0;
et->priv->table_cell_change_id = 0;
et->priv->table_rows_delete_id = 0;
}
static void
clear_current_search_col (ETree *et)
{
et->priv->search_col_set = FALSE;
}
static ETableCol *
current_search_col (ETree *et)
{
if (!et->priv->search_col_set) {
et->priv->current_search_col =
e_table_util_calculate_current_search_col (et->priv->header,
et->priv->full_header,
et->priv->sort_info,
et->priv->always_search);
et->priv->search_col_set = TRUE;
}
return et->priv->current_search_col;
}
static void
e_tree_state_change (ETree *et)
{
g_signal_emit (G_OBJECT (et), et_signals [STATE_CHANGE], 0);
}
static void
change_trigger (GtkObject *object, ETree *et)
{
e_tree_state_change (et);
}
static void
search_col_change_trigger (GtkObject *object, ETree *et)
{
clear_current_search_col (et);
e_tree_state_change (et);
}
static void
disconnect_header (ETree *e_tree)
{
if (e_tree->priv->header == NULL)
return;
if (e_tree->priv->structure_change_id)
g_signal_handler_disconnect (G_OBJECT (e_tree->priv->header),
e_tree->priv->structure_change_id);
if (e_tree->priv->expansion_change_id)
g_signal_handler_disconnect (G_OBJECT (e_tree->priv->header),
e_tree->priv->expansion_change_id);
if (e_tree->priv->sort_info) {
if (e_tree->priv->sort_info_change_id)
g_signal_handler_disconnect (G_OBJECT (e_tree->priv->sort_info),
e_tree->priv->sort_info_change_id);
if (e_tree->priv->group_info_change_id)
g_signal_handler_disconnect (G_OBJECT (e_tree->priv->sort_info),
e_tree->priv->group_info_change_id);
g_object_unref(e_tree->priv->sort_info);
}
g_object_unref(e_tree->priv->header);
e_tree->priv->header = NULL;
e_tree->priv->sort_info = NULL;
}
static void
connect_header (ETree *e_tree, ETableState *state)
{
GValue *val = g_new0 (GValue, 1);
if (e_tree->priv->header != NULL)
disconnect_header (e_tree);
e_tree->priv->header = e_table_state_to_header (GTK_WIDGET(e_tree), e_tree->priv->full_header, state);
e_tree->priv->structure_change_id =
g_signal_connect (G_OBJECT (e_tree->priv->header), "structure_change",
G_CALLBACK (search_col_change_trigger), e_tree);
e_tree->priv->expansion_change_id =
g_signal_connect (G_OBJECT (e_tree->priv->header), "expansion_change",
G_CALLBACK (change_trigger), e_tree);
if (state->sort_info) {
e_tree->priv->sort_info = e_table_sort_info_duplicate(state->sort_info);
e_table_sort_info_set_can_group (e_tree->priv->sort_info, FALSE);
e_tree->priv->sort_info_change_id =
g_signal_connect (G_OBJECT (e_tree->priv->sort_info), "sort_info_changed",
G_CALLBACK (search_col_change_trigger), e_tree);
e_tree->priv->group_info_change_id =
g_signal_connect (G_OBJECT (e_tree->priv->sort_info), "group_info_changed",
G_CALLBACK (search_col_change_trigger), e_tree);
} else
e_tree->priv->sort_info = NULL;
g_value_init (val, G_TYPE_OBJECT);
g_value_set_object (val, e_tree->priv->sort_info);
g_object_set_property (G_OBJECT(e_tree->priv->header), "sort_info", val);
g_free (val);
}
static void
et_dispose (GObject *object)
{
ETree *et = E_TREE (object);
if (et->priv) {
if (et->priv->search) {
if (et->priv->search_search_id)
g_signal_handler_disconnect (et->priv->search,
et->priv->search_search_id);
if (et->priv->search_accept_id)
g_signal_handler_disconnect (et->priv->search,
et->priv->search_accept_id);
g_object_unref (et->priv->search);
}
if (et->priv->reflow_idle_id)
g_source_remove(et->priv->reflow_idle_id);
et->priv->reflow_idle_id = 0;
scroll_off (et);
hover_off (et);
g_list_foreach (
et->priv->expanded_list,
(GFunc) g_free, NULL);
g_list_free (et->priv->expanded_list);
et_disconnect_from_etta (et);
g_object_unref (et->priv->etta);
g_object_unref (et->priv->model);
g_object_unref (et->priv->full_header);
disconnect_header (et);
g_object_unref (et->priv->selection);
if (et->priv->spec)
g_object_unref (et->priv->spec);
et->priv->spec = NULL;
if (et->priv->sorter)
g_object_unref (et->priv->sorter);
et->priv->sorter = NULL;
if (et->priv->header_canvas)
gtk_widget_destroy (GTK_WIDGET (et->priv->header_canvas));
et->priv->header_canvas = NULL;
if (et->priv->site)
e_tree_drag_source_unset (et);
if (et->priv->last_drop_context)
g_object_weak_unref (G_OBJECT(et->priv->last_drop_context), context_destroyed, et);
et->priv->last_drop_context = NULL;
if (et->priv->info_text)
gtk_object_destroy (GTK_OBJECT (et->priv->info_text));
et->priv->info_text = NULL;
et->priv->info_text_resize_id = 0;
gtk_widget_destroy (GTK_WIDGET (et->priv->table_canvas));
g_free(et->priv);
et->priv = NULL;
}
if (G_OBJECT_CLASS (e_tree_parent_class)->dispose)
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 *et;
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->et);
value = e_tree_model_value_at (model, path, cb_data->et->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 *et)
{
ETreePath cursor;
ETreePath found;
SearchSearchStruct cb_data;
ETableCol *col = current_search_col (et);
if (col == NULL)
return FALSE;
cb_data.et = et;
cb_data.string = string;
cursor = e_tree_get_cursor (et);
if (cursor && (flags & E_TABLE_SEARCH_FLAGS_CHECK_CURSOR_FIRST)) {
gconstpointer value;
value = e_tree_model_value_at (et->priv->model, cursor, col->col_idx);
if (col->search (value, string)) {
return TRUE;
}
}
found = e_tree_model_node_find (et->priv->model, cursor, NULL, E_TREE_FIND_NEXT_FORWARD, search_search_callback, &cb_data);
if (found == NULL)
found = e_tree_model_node_find (et->priv->model, NULL, cursor, E_TREE_FIND_NEXT_FORWARD, search_search_callback, &cb_data);
if (found && found != cursor) {
gint model_row;
e_tree_table_adapter_show_node (et->priv->etta, found);
model_row = e_tree_table_adapter_row_of_node (et->priv->etta, found);
e_selection_model_select_as_key_press(E_SELECTION_MODEL (et->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 (et->priv->model, cursor, col->col_idx);
return col->search (value, string);
} else
return FALSE;
}
static void
et_search_accept (ETableSearch *search, ETree *et)
{
ETableCol *col = current_search_col (et);
gint cursor;
if (col == NULL)
return;
g_object_get(et->priv->selection,
"cursor_row", &cursor,
NULL);
e_selection_model_select_as_key_press(E_SELECTION_MODEL (et->priv->selection), cursor, col->col_idx, 0);
}
static void
e_tree_init (ETree *e_tree)
{
GtkTable *gtk_table = GTK_TABLE (e_tree);
GTK_WIDGET_SET_FLAGS (GTK_WIDGET (e_tree), GTK_CAN_FOCUS);
gtk_table->homogeneous = FALSE;
e_tree->priv = g_new(ETreePriv, 1);
e_tree->priv->model = NULL;
e_tree->priv->etta = NULL;
e_tree->priv->full_header = NULL;
e_tree->priv->header = NULL;
e_tree->priv->structure_change_id = 0;
e_tree->priv->expansion_change_id = 0;
e_tree->priv->sort_info_change_id = 0;
e_tree->priv->group_info_change_id = 0;
e_tree->priv->sort_info = NULL;
e_tree->priv->sorter = NULL;
e_tree->priv->reflow_idle_id = 0;
e_tree->priv->scroll_idle_id = 0;
e_tree->priv->hover_idle_id = 0;
e_tree->priv->show_cursor_after_reflow = FALSE;
e_tree->priv->table_model_change_id = 0;
e_tree->priv->table_row_change_id = 0;
e_tree->priv->table_cell_change_id = 0;
e_tree->priv->table_rows_delete_id = 0;
e_tree->priv->alternating_row_colors = 1;
e_tree->priv->horizontal_draw_grid = 1;
e_tree->priv->vertical_draw_grid = 1;
e_tree->priv->draw_focus = 1;
e_tree->priv->cursor_mode = E_CURSOR_SIMPLE;
e_tree->priv->length_threshold = 200;
e_tree->priv->uniform_row_height = FALSE;
e_tree->priv->row_selection_active = FALSE;
e_tree->priv->horizontal_scrolling = FALSE;
e_tree->priv->scroll_direction = 0;
e_tree->priv->drop_row = -1;
e_tree->priv->drop_path = NULL;
e_tree->priv->drop_col = -1;
e_tree->priv->drop_highlight = NULL;
e_tree->priv->last_drop_x = 0;
e_tree->priv->last_drop_y = 0;
e_tree->priv->last_drop_time = 0;
e_tree->priv->last_drop_context = NULL;
e_tree->priv->hover_x = 0;
e_tree->priv->hover_y = 0;
e_tree->priv->drag_row = -1;
e_tree->priv->drag_path = NULL;
e_tree->priv->drag_col = -1;
e_tree->priv->expanded_list = NULL;
e_tree->priv->site = NULL;
e_tree->priv->do_drag = FALSE;
#ifdef E_TREE_USE_TREE_SELECTION
e_tree->priv->selection = E_SELECTION_MODEL(e_tree_selection_model_new());
#else
e_tree->priv->selection = E_SELECTION_MODEL(e_table_selection_model_new());
#endif
e_tree->priv->spec = NULL;
e_tree->priv->info_text = NULL;
e_tree->priv->info_text_resize_id = 0;
e_tree->priv->header_canvas = NULL;
e_tree->priv->table_canvas = NULL;
e_tree->priv->header_item = NULL;
e_tree->priv->root = NULL;
e_tree->priv->white_item = NULL;
e_tree->priv->item = NULL;
e_tree->priv->search = e_table_search_new();
e_tree->priv->search_search_id =
g_signal_connect (G_OBJECT (e_tree->priv->search), "search",
G_CALLBACK (et_search_search), e_tree);
e_tree->priv->search_accept_id =
g_signal_connect (G_OBJECT (e_tree->priv->search), "accept",
G_CALLBACK (et_search_accept), e_tree);
e_tree->priv->current_search_col = NULL;
e_tree->priv->search_col_set = FALSE;
e_tree->priv->always_search = g_getenv ("GAL_ALWAYS_SEARCH") ? TRUE : FALSE;
}
/* Grab_focus handler for the ETree */
static void
et_grab_focus (GtkWidget *widget)
{
ETree *e_tree;
e_tree = E_TREE (widget);
gtk_widget_grab_focus (GTK_WIDGET (e_tree->priv->table_canvas));
}
/* Focus handler for the ETree */
static gint
et_focus (GtkWidget *container, GtkDirectionType direction)
{
ETree *e_tree;
e_tree = E_TREE (container);
if (GTK_CONTAINER (container)->focus_child) {
gtk_container_set_focus_child (GTK_CONTAINER (container), NULL);
return FALSE;
}
return gtk_widget_child_focus (GTK_WIDGET (e_tree->priv->table_canvas), direction);
}
static void
set_header_canvas_width (ETree *e_tree)
{
gdouble oldwidth, oldheight, width;
if (!(e_tree->priv->header_item && e_tree->priv->header_canvas && e_tree->priv->table_canvas))
return;
gnome_canvas_get_scroll_region (GNOME_CANVAS (e_tree->priv->table_canvas),
NULL, NULL, &width, NULL);
gnome_canvas_get_scroll_region (GNOME_CANVAS (e_tree->priv->header_canvas),
NULL, NULL, &oldwidth, &oldheight);
if (oldwidth != width ||
oldheight != E_TABLE_HEADER_ITEM (e_tree->priv->header_item)->height - 1)
gnome_canvas_set_scroll_region (
GNOME_CANVAS (e_tree->priv->header_canvas),
0, 0, width, /* COLUMN_HEADER_HEIGHT - 1 */
E_TABLE_HEADER_ITEM (e_tree->priv->header_item)->height - 1);
}
static void
header_canvas_size_allocate (GtkWidget *widget, GtkAllocation *alloc, ETree *e_tree)
{
set_header_canvas_width (e_tree);
/* 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 (GTK_WIDGET (e_tree->priv->header_canvas)->allocation.height !=
E_TABLE_HEADER_ITEM (e_tree->priv->header_item)->height)
gtk_widget_set_size_request (GTK_WIDGET (e_tree->priv->header_canvas), -1,
E_TABLE_HEADER_ITEM (e_tree->priv->header_item)->height);
}
static void
e_tree_setup_header (ETree *e_tree)
{
gchar *pointer;
e_tree->priv->header_canvas = GNOME_CANVAS (e_canvas_new ());
GTK_WIDGET_UNSET_FLAGS (e_tree->priv->header_canvas, GTK_CAN_FOCUS);
gtk_widget_show (GTK_WIDGET (e_tree->priv->header_canvas));
pointer = g_strdup_printf("%p", (gpointer) e_tree);
e_tree->priv->header_item = gnome_canvas_item_new (
gnome_canvas_root (e_tree->priv->header_canvas),
e_table_header_item_get_type (),
"ETableHeader", e_tree->priv->header,
"full_header", e_tree->priv->full_header,
"sort_info", e_tree->priv->sort_info,
"dnd_code", pointer,
"tree", e_tree,
NULL);
g_free(pointer);
g_signal_connect (
e_tree->priv->header_canvas, "size_allocate",
G_CALLBACK (header_canvas_size_allocate), e_tree);
gtk_widget_set_size_request (
GTK_WIDGET (e_tree->priv->header_canvas), -1,
E_TABLE_HEADER_ITEM (e_tree->priv->header_item)->height);
}
static void
scroll_to_cursor (ETree *e_tree)
{
ETreePath path;
GtkAdjustment *adj;
gint x, y, w, h;
path = e_tree_get_cursor (e_tree);
adj = GTK_LAYOUT (e_tree->priv->table_canvas)->vadjustment;
x = y = w = h = 0;
if (path) {
gint row = e_tree_row_of_node(e_tree, path);
gint col = 0;
if (row >= 0)
e_table_item_get_cell_geometry (E_TABLE_ITEM (e_tree->priv->item),
&row, &col, &x, &y, &w, &h);
}
if (y < adj->value || y + h > adj->value + adj->page_size)
gtk_adjustment_set_value(adj, CLAMP(y - adj->page_size / 2, adj->lower, adj->upper - adj->page_size));
}
static gboolean
tree_canvas_reflow_idle (ETree *e_tree)
{
gdouble height, width;
gdouble oldheight, oldwidth;
GtkAllocation *alloc = &(GTK_WIDGET (e_tree->priv->table_canvas)->allocation);
g_object_get (e_tree->priv->item,
"height", &height,
"width", &width,
NULL);
height = MAX ((gint)height, alloc->height);
width = MAX((gint)width, alloc->width);
/* I have no idea why this needs to be -1, but it works. */
gnome_canvas_get_scroll_region (GNOME_CANVAS (e_tree->priv->table_canvas),
NULL, NULL, &oldwidth, &oldheight);
if (oldwidth != width - 1 ||
oldheight != height - 1) {
gnome_canvas_set_scroll_region (GNOME_CANVAS (e_tree->priv->table_canvas),
0, 0, width - 1, height - 1);
set_header_canvas_width (e_tree);
}
e_tree->priv->reflow_idle_id = 0;
if (e_tree->priv->show_cursor_after_reflow) {
e_tree->priv->show_cursor_after_reflow = FALSE;
scroll_to_cursor (e_tree);
}
return FALSE;
}
static void
tree_canvas_size_allocate (GtkWidget *widget, GtkAllocation *alloc,
ETree *e_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 (e_tree->priv->item,
"height", &height,
NULL);
height = MAX ((gint)height, alloc->height);
g_object_set (e_tree->priv->item,
"width", width,
NULL);
g_object_set_property (G_OBJECT (e_tree->priv->header), "width", val);
g_free (val);
if (e_tree->priv->reflow_idle_id)
g_source_remove(e_tree->priv->reflow_idle_id);
tree_canvas_reflow_idle(e_tree);
scroll_to_cursor (e_tree);
}
static void
tree_canvas_reflow (GnomeCanvas *canvas, ETree *e_tree)
{
if (!e_tree->priv->reflow_idle_id)
e_tree->priv->reflow_idle_id = g_idle_add_full (400, (GSourceFunc) tree_canvas_reflow_idle, e_tree, NULL);
}
static void
item_cursor_change (ETableItem *eti, gint row, ETree *et)
{
ETreePath path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
g_signal_emit (et,
et_signals [CURSOR_CHANGE], 0,
row, path);
}
static void
item_cursor_activated (ETableItem *eti, gint row, ETree *et)
{
ETreePath path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
g_signal_emit (et,
et_signals [CURSOR_ACTIVATED], 0,
row, path);
d(g_print("%s: Emitted CURSOR_ACTIVATED signal on row: %d and path: 0x%p\n", __FUNCTION__, row, path));
}
static void
item_double_click (ETableItem *eti, gint row, gint col, GdkEvent *event, ETree *et)
{
ETreePath path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
g_signal_emit (et,
et_signals [DOUBLE_CLICK], 0,
row, path, col, event);
}
static gint
item_right_click (ETableItem *eti, gint row, gint col, GdkEvent *event, ETree *et)
{
gint return_val = 0;
ETreePath path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
g_signal_emit (et,
et_signals [RIGHT_CLICK], 0,
row, path, col, event, &return_val);
return return_val;
}
static gint
item_click (ETableItem *eti, gint row, gint col, GdkEvent *event, ETree *et)
{
gint return_val = 0;
ETreePath path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
g_signal_emit (et,
et_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 *et)
{
gint return_val = 0;
GdkEventKey *key = (GdkEventKey *) event;
ETreePath path;
gint y, row_local, col_local;
GtkAdjustment *vadj;
switch (key->keyval) {
case GDK_Page_Down:
case GDK_KP_Page_Down:
vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (et->priv->table_canvas));
y = CLAMP(vadj->value + (2 * vadj->page_size - 50), 0, vadj->upper);
y -= vadj->value;
e_tree_get_cell_at (et, 30, y, &row_local, &col_local);
if (row_local == -1)
row_local = e_table_model_row_count (E_TABLE_MODEL(et->priv->etta)) - 1;
row_local = e_tree_view_to_model_row (et, row_local);
col_local = e_selection_model_cursor_col (E_SELECTION_MODEL (et->priv->selection));
e_selection_model_select_as_key_press (E_SELECTION_MODEL (et->priv->selection), row_local, col_local, key->state);
return_val = 1;
break;
case GDK_Page_Up:
case GDK_KP_Page_Up:
vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (et->priv->table_canvas));
y = CLAMP(vadj->value - (vadj->page_size - 50), 0, vadj->upper);
y -= vadj->value;
e_tree_get_cell_at (et, 30, y, &row_local, &col_local);
if (row_local == -1)
row_local = e_table_model_row_count (E_TABLE_MODEL(et->priv->etta)) - 1;
row_local = e_tree_view_to_model_row (et, row_local);
col_local = e_selection_model_cursor_col (E_SELECTION_MODEL (et->priv->selection));
e_selection_model_select_as_key_press (E_SELECTION_MODEL (et->priv->selection), row_local, col_local, key->state);
return_val = 1;
break;
case GDK_plus:
case GDK_KP_Add:
case GDK_Right:
case GDK_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(et->priv->etta, row);
if (path)
e_tree_table_adapter_node_set_expanded (et->priv->etta, path, TRUE);
}
return_val = 1;
break;
case GDK_underscore:
case GDK_KP_Subtract:
case GDK_Left:
case GDK_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(et->priv->etta, row);
if (path)
e_tree_table_adapter_node_set_expanded (et->priv->etta, path, FALSE);
}
return_val = 1;
break;
case GDK_BackSpace:
if (e_table_search_backspace (et->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_a && key->keyval <= GDK_z) ||
(key->keyval >= GDK_A && key->keyval <= GDK_Z) ||
(key->keyval >= GDK_0 && key->keyval <= GDK_9))) {
e_table_search_input_character (et->priv->search, key->keyval);
}
path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
g_signal_emit (et,
et_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 *et)
{
ETreePath path;
gint return_val = 0;
path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
g_signal_emit (et,
et_signals [START_DRAG], 0,
row, path, col, event, &return_val);
return return_val;
}
static void
et_selection_model_selection_changed (ETableSelectionModel *etsm, ETree *et)
{
g_signal_emit (et,
et_signals [SELECTION_CHANGE], 0);
}
static void
et_selection_model_selection_row_changed (ETableSelectionModel *etsm, gint row, ETree *et)
{
g_signal_emit (et,
et_signals [SELECTION_CHANGE], 0);
}
static void
et_build_item (ETree *et)
{
et->priv->item = gnome_canvas_item_new(GNOME_CANVAS_GROUP (gnome_canvas_root(et->priv->table_canvas)),
e_table_item_get_type(),
"ETableHeader", et->priv->header,
"ETableModel", et->priv->etta,
"selection_model", et->priv->selection,
"alternating_row_colors", et->priv->alternating_row_colors,
"horizontal_draw_grid", et->priv->horizontal_draw_grid,
"vertical_draw_grid", et->priv->vertical_draw_grid,
"drawfocus", et->priv->draw_focus,
"cursor_mode", et->priv->cursor_mode,
"length_threshold", et->priv->length_threshold,
"uniform_row_height", et->priv->uniform_row_height,
NULL);
g_signal_connect (et->priv->item, "cursor_change",
G_CALLBACK (item_cursor_change), et);
g_signal_connect (et->priv->item, "cursor_activated",
G_CALLBACK (item_cursor_activated), et);
g_signal_connect (et->priv->item, "double_click",
G_CALLBACK (item_double_click), et);
g_signal_connect (et->priv->item, "right_click",
G_CALLBACK (item_right_click), et);
g_signal_connect (et->priv->item, "click",
G_CALLBACK (item_click), et);
g_signal_connect (et->priv->item, "key_press",
G_CALLBACK (item_key_press), et);
g_signal_connect (et->priv->item, "start_drag",
G_CALLBACK (item_start_drag), et);
}
static void
et_canvas_style_set (GtkWidget *widget, GtkStyle *prev_style)
{
gnome_canvas_item_set(
E_TREE(widget)->priv->white_item,
"fill_color_gdk", &widget->style->base[GTK_STATE_NORMAL],
NULL);
}
static gint
white_item_event (GnomeCanvasItem *white_item, GdkEvent *event, ETree *e_tree)
{
gint return_val = 0;
g_signal_emit (e_tree,
et_signals [WHITE_SPACE_EVENT], 0,
event, &return_val);
return return_val;
}
static gint
et_canvas_root_event (GnomeCanvasItem *root, GdkEvent *event, ETree *e_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(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 gint
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 *e_tree)
{
e_tree->priv->table_canvas = GNOME_CANVAS (e_canvas_new ());
g_signal_connect (
e_tree->priv->table_canvas, "size_allocate",
G_CALLBACK (tree_canvas_size_allocate), e_tree);
g_signal_connect (
e_tree->priv->table_canvas, "focus_in_event",
G_CALLBACK (table_canvas_focus_event_cb), e_tree);
g_signal_connect (
e_tree->priv->table_canvas, "focus_out_event",
G_CALLBACK (table_canvas_focus_event_cb), e_tree);
g_signal_connect (
e_tree->priv->table_canvas, "drag_begin",
G_CALLBACK (et_drag_begin), e_tree);
g_signal_connect (
e_tree->priv->table_canvas, "drag_end",
G_CALLBACK (et_drag_end), e_tree);
g_signal_connect (
e_tree->priv->table_canvas, "drag_data_get",
G_CALLBACK (et_drag_data_get), e_tree);
g_signal_connect (
e_tree->priv->table_canvas, "drag_data_delete",
G_CALLBACK (et_drag_data_delete), e_tree);
g_signal_connect (
e_tree, "drag_motion",
G_CALLBACK (et_drag_motion), e_tree);
g_signal_connect (
e_tree, "drag_leave",
G_CALLBACK (et_drag_leave), e_tree);
g_signal_connect (
e_tree, "drag_drop",
G_CALLBACK (et_drag_drop), e_tree);
g_signal_connect (
e_tree, "drag_data_received",
G_CALLBACK (et_drag_data_received), e_tree);
g_signal_connect (e_tree->priv->table_canvas, "reflow",
G_CALLBACK (tree_canvas_reflow), e_tree);
gtk_widget_show (GTK_WIDGET (e_tree->priv->table_canvas));
e_tree->priv->white_item = gnome_canvas_item_new(
gnome_canvas_root(e_tree->priv->table_canvas),
e_canvas_background_get_type(),
"fill_color_gdk", >K_WIDGET(e_tree->priv->table_canvas)->style->base[GTK_STATE_NORMAL],
NULL);
g_signal_connect (e_tree->priv->white_item, "event",
G_CALLBACK (white_item_event), e_tree);
g_signal_connect (
gnome_canvas_root (e_tree->priv->table_canvas), "event",
G_CALLBACK(et_canvas_root_event), e_tree);
et_build_item(e_tree);
}
/**
* e_tree_set_search_column:
* @e_tree: #ETree object that will be modified
* @col: Column index to use for searches
*
* This routine sets the current search column to be used for keypress
* searches of the #ETree. If -1 is passed in for column, the current
* search column is cleared.
*/
void
e_tree_set_search_column (ETree *e_tree, gint col)
{
if (col == -1) {
clear_current_search_col (e_tree);
return;
}
e_tree->priv->search_col_set = TRUE;
e_tree->priv->current_search_col = e_table_header_get_column (e_tree->priv->full_header, col);
}
void
e_tree_set_state_object(ETree *e_tree, ETableState *state)
{
GValue *val = g_new0 (GValue, 1);
g_value_init (val, G_TYPE_DOUBLE);
connect_header (e_tree, state);
g_value_set_double (val, (gdouble) (GTK_WIDGET(e_tree->priv->table_canvas)->allocation.width));
g_object_set_property (G_OBJECT (e_tree->priv->header), "width", val);
g_free (val);
if (e_tree->priv->header_item)
g_object_set(e_tree->priv->header_item,
"ETableHeader", e_tree->priv->header,
"sort_info", e_tree->priv->sort_info,
NULL);
if (e_tree->priv->item)
g_object_set(e_tree->priv->item,
"ETableHeader", e_tree->priv->header,
NULL);
if (e_tree->priv->etta)
e_tree_table_adapter_set_sort_info (e_tree->priv->etta, e_tree->priv->sort_info);
e_tree_state_change (e_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 *e_tree,
const gchar *state_str)
{
ETableState *state;
g_return_if_fail(e_tree != NULL);
g_return_if_fail(E_IS_TREE(e_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(e_tree, state);
g_object_unref(state);
}
/**
* e_tree_load_state:
* @e_tree: #ETree object that will be modified
* @filename: name of the file containing the state to be loaded into the #ETree
*
* An #ETableState will be loaded form the file pointed by @filename into the
* @e_tree object.
*/
void
e_tree_load_state (ETree *e_tree,
const gchar *filename)
{
ETableState *state;
g_return_if_fail(e_tree != NULL);
g_return_if_fail(E_IS_TREE(e_tree));
g_return_if_fail(filename != NULL);
state = e_table_state_new();
e_table_state_load_from_file(state, filename);
if (state->col_count > 0)
e_tree_set_state_object(e_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 *e_tree)
{
ETableState *state;
gint full_col_count;
gint i, j;
state = e_table_state_new();
state->sort_info = e_tree->priv->sort_info;
if (state->sort_info)
g_object_ref(state->sort_info);
state->col_count = e_table_header_count (e_tree->priv->header);
full_col_count = e_table_header_count (e_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(e_tree->priv->header, i);
state->columns[i] = -1;
for (j = 0; j < full_col_count; j++) {
if (col->col_idx == e_table_header_index(e_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 *e_tree)
{
ETableState *state;
gchar *string;
state = e_tree_get_state_object(e_tree);
string = e_table_state_save_to_string(state);
g_object_unref(state);
return string;
}
/**
* e_tree_save_state:
* @e_tree: The #ETree to act on
* @filename: name of the file to save to
*
* Saves the state of the @e_tree object into the file pointed by
* @filename.
**/
void
e_tree_save_state (ETree *e_tree,
const gchar *filename)
{
ETableState *state;
state = e_tree_get_state_object(e_tree);
e_table_state_save_to_file(state, filename);
g_object_unref(state);
}
/**
* e_tree_get_spec:
* @e_tree: The #ETree to query
*
* Returns the specification object.
*
* Return value:
**/
ETableSpecification *
e_tree_get_spec (ETree *e_tree)
{
return e_tree->priv->spec;
}
static void
et_table_model_changed (ETableModel *model, ETree *et)
{
if (et->priv->horizontal_scrolling)
e_table_header_update_horizontal(et->priv->header);
}
static void
et_table_row_changed (ETableModel *table_model, gint row, ETree *et)
{
et_table_model_changed (table_model, et);
}
static void
et_table_cell_changed (ETableModel *table_model, gint view_col, gint row, ETree *et)
{
et_table_model_changed (table_model, et);
}
static void
et_table_rows_deleted (ETableModel *table_model, gint row, gint count, ETree *et)
{
ETreePath * node, * prev_node;
/* If the cursor is still valid after this deletion, we're done */
if (e_selection_model_cursor_row (et->priv->selection) >= 0
|| row == 0)
return;
prev_node = e_tree_node_at_row (et, row-1);
node = e_tree_get_cursor (et);
/* 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 (et->priv->model, node);
if (node == prev_node) {
/* Set the cursor to the still-visible parent */
e_tree_set_cursor (et, prev_node);
return;
}
}
}
static void
et_connect_to_etta (ETree *et)
{
et->priv->table_model_change_id = g_signal_connect (et->priv->etta, "model_changed",
G_CALLBACK (et_table_model_changed), et);
et->priv->table_row_change_id = g_signal_connect (et->priv->etta, "model_row_changed",
G_CALLBACK (et_table_row_changed), et);
et->priv->table_cell_change_id = g_signal_connect (et->priv->etta, "model_cell_changed",
G_CALLBACK (et_table_cell_changed), et);
et->priv->table_rows_delete_id = g_signal_connect (et->priv->etta, "model_rows_deleted",
G_CALLBACK (et_table_rows_deleted), et);
}
static gboolean
et_real_construct (ETree *e_tree, ETreeModel *etm, ETableExtras *ete,
ETableSpecification *specification, ETableState *state)
{
gint row = 0;
if (ete)
g_object_ref(ete);
else
ete = e_table_extras_new();
e_tree->priv->alternating_row_colors = specification->alternating_row_colors;
e_tree->priv->horizontal_draw_grid = specification->horizontal_draw_grid;
e_tree->priv->vertical_draw_grid = specification->vertical_draw_grid;
e_tree->priv->draw_focus = specification->draw_focus;
e_tree->priv->cursor_mode = specification->cursor_mode;
e_tree->priv->full_header = e_table_spec_to_full_header(specification, ete);
connect_header (e_tree, state);
e_tree->priv->horizontal_scrolling = specification->horizontal_scrolling;
e_tree->priv->model = etm;
g_object_ref (etm);
e_tree->priv->etta = E_TREE_TABLE_ADAPTER(e_tree_table_adapter_new(e_tree->priv->model, e_tree->priv->sort_info, e_tree->priv->full_header));
et_connect_to_etta (e_tree);
gtk_widget_push_colormap (gdk_rgb_get_colormap ());
e_tree->priv->sorter = e_sorter_new();
g_object_set (e_tree->priv->selection,
"sorter", e_tree->priv->sorter,
#ifdef E_TREE_USE_TREE_SELECTION
"model", e_tree->priv->model,
"etta", e_tree->priv->etta,
#else
"model", e_tree->priv->etta,
#endif
"selection_mode", specification->selection_mode,
"cursor_mode", specification->cursor_mode,
NULL);
g_signal_connect(e_tree->priv->selection, "selection_changed",
G_CALLBACK (et_selection_model_selection_changed), e_tree);
g_signal_connect(e_tree->priv->selection, "selection_row_changed",
G_CALLBACK (et_selection_model_selection_row_changed), e_tree);
if (!specification->no_headers) {
e_tree_setup_header (e_tree);
}
e_tree_setup_table (e_tree);
gtk_layout_get_vadjustment (GTK_LAYOUT (e_tree->priv->table_canvas))->step_increment = 20;
gtk_adjustment_changed(gtk_layout_get_vadjustment (GTK_LAYOUT (e_tree->priv->table_canvas)));
gtk_layout_get_hadjustment (GTK_LAYOUT (e_tree->priv->table_canvas))->step_increment = 20;
gtk_adjustment_changed(gtk_layout_get_hadjustment (GTK_LAYOUT (e_tree->priv->table_canvas)));
if (!specification->no_headers) {
/*
* The header
*/
gtk_table_attach (GTK_TABLE (e_tree), GTK_WIDGET (e_tree->priv->header_canvas),
0, 1, 0 + row, 1 + row,
GTK_FILL | GTK_EXPAND,
GTK_FILL, 0, 0);
row ++;
}
gtk_table_attach (GTK_TABLE (e_tree), GTK_WIDGET (e_tree->priv->table_canvas),
0, 1, 0 + row, 1 + row,
GTK_FILL | GTK_EXPAND,
GTK_FILL | GTK_EXPAND,
0, 0);
gtk_widget_pop_colormap ();
g_object_unref(ete);
return e_tree != NULL;
}
/**
* 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 *e_tree, ETreeModel *etm, ETableExtras *ete,
const gchar *spec_str, const gchar *state_str)
{
ETableSpecification *specification;
ETableState *state;
g_return_val_if_fail(e_tree != NULL, FALSE);
g_return_val_if_fail(E_IS_TREE(e_tree), FALSE);
g_return_val_if_fail(etm != NULL, 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 (e_tree, etm, ete, specification, state)) {
g_object_unref (specification);
g_object_unref (state);
return FALSE;
}
e_tree->priv->spec = specification;
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 *e_tree, ETreeModel *etm, ETableExtras *ete,
const gchar *spec_fn, const gchar *state_fn)
{
ETableSpecification *specification;
ETableState *state;
g_return_val_if_fail(e_tree != NULL, FALSE);
g_return_val_if_fail(E_IS_TREE(e_tree), FALSE);
g_return_val_if_fail(etm != NULL, 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 (e_tree, etm, ete, specification, state)) {
g_object_unref (specification);
g_object_unref (state);
return FALSE;
}
e_tree->priv->spec = specification;
g_object_unref(state);
return TRUE;
}
/**
* e_tree_new:
* @etm: The model for this tree
* @ete: An optional #ETableExtras (%NULL is valid.)
* @spec: The spec
* @state: 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, const gchar *state)
{
ETree *e_tree;
g_return_val_if_fail(etm != NULL, NULL);
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 != NULL, NULL);
e_tree = g_object_new (E_TREE_TYPE, NULL);
if (!e_tree_construct (e_tree, etm, ete, spec, state)) {
g_object_unref (e_tree);
return NULL;
}
return (GtkWidget *) e_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 *e_tree;
g_return_val_if_fail(etm != NULL, NULL);
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);
e_tree = g_object_new (E_TREE_TYPE, NULL);
if (!e_tree_construct_from_spec_file (e_tree, etm, ete, spec_fn, state_fn)) {
g_object_unref (e_tree);
return NULL;
}
return (GtkWidget *) e_tree;
}
void
e_tree_show_cursor_after_reflow (ETree *e_tree)
{
g_return_if_fail (e_tree != NULL);
g_return_if_fail (E_IS_TREE (e_tree));
e_tree->priv->show_cursor_after_reflow = TRUE;
}
void
e_tree_set_cursor (ETree *e_tree, ETreePath path)
{
#ifndef E_TREE_USE_TREE_SELECTION
gint row;
#endif
g_return_if_fail(e_tree != NULL);
g_return_if_fail(E_IS_TREE(e_tree));
g_return_if_fail(path != NULL);
#ifdef E_TREE_USE_TREE_SELECTION
e_tree_selection_model_select_single_path (E_TREE_SELECTION_MODEL(e_tree->priv->selection), path);
e_tree_selection_model_change_cursor (E_TREE_SELECTION_MODEL(e_tree->priv->selection), path);
#else
row = e_tree_table_adapter_row_of_node(E_TREE_TABLE_ADAPTER(e_tree->priv->etta), path);
if (row == -1)
return;
g_object_set(e_tree->priv->selection,
"cursor_row", row,
NULL);
#endif
}
ETreePath
e_tree_get_cursor (ETree *e_tree)
{
#ifdef E_TREE_USE_TREE_SELECTION
return e_tree_selection_model_get_cursor (E_TREE_SELECTION_MODEL(e_tree->priv->selection));
#else
gint row;
ETreePath path;
g_return_val_if_fail(e_tree != NULL, NULL);
g_return_val_if_fail(E_IS_TREE(e_tree), NULL);
g_object_get(e_tree->priv->selection,
"cursor_row", &row,
NULL);
if (row == -1)
return NULL;
path = e_tree_table_adapter_node_at_row(E_TREE_TABLE_ADAPTER(e_tree->priv->etta), row);
return path;
#endif
}
void
e_tree_selected_row_foreach (ETree *e_tree,
EForeachFunc callback,
gpointer closure)
{
g_return_if_fail(e_tree != NULL);
g_return_if_fail(E_IS_TREE(e_tree));
e_selection_model_foreach(e_tree->priv->selection,
callback,
closure);
}
#ifdef E_TREE_USE_TREE_SELECTION
void
e_tree_selected_path_foreach (ETree *e_tree,
ETreeForeachFunc callback,
gpointer closure)
{
g_return_if_fail(e_tree != NULL);
g_return_if_fail(E_IS_TREE(e_tree));
e_tree_selection_model_foreach(E_TREE_SELECTION_MODEL (e_tree->priv->selection),
callback,
closure);
}
/* 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 *e_tree,
ETreeForeachFunc callback,
gpointer closure)
{
ETreePath root;
g_return_if_fail(e_tree != NULL);
g_return_if_fail(E_IS_TREE(e_tree));
root = e_tree_model_get_root (e_tree->priv->model);
if (root)
et_foreach_recurse (e_tree->priv->model,
root,
callback,
closure);
}
#endif
EPrintable *
e_tree_get_printable (ETree *e_tree)
{
g_return_val_if_fail(e_tree != NULL, NULL);
g_return_val_if_fail(E_IS_TREE(e_tree), NULL);
return e_table_item_get_printable(E_TABLE_ITEM(e_tree->priv->item));
}
static void
et_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
ETree *etree = E_TREE (object);
switch (prop_id) {
case PROP_ETTA:
g_value_set_object (value, etree->priv->etta);
break;
case PROP_UNIFORM_ROW_HEIGHT:
g_value_set_boolean (value, etree->priv->uniform_row_height);
break;
case PROP_ALWAYS_SEARCH:
g_value_set_boolean (value, etree->priv->always_search);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
typedef struct {
gchar *arg;
gboolean setting;
} bool_closure;
static void
et_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
ETree *etree = E_TREE (object);
switch (prop_id) {
case PROP_LENGTH_THRESHOLD:
etree->priv->length_threshold = g_value_get_int (value);
if (etree->priv->item) {
gnome_canvas_item_set (GNOME_CANVAS_ITEM(etree->priv->item),
"length_threshold", etree->priv->length_threshold,
NULL);
}
break;
case PROP_HORIZONTAL_DRAW_GRID:
etree->priv->horizontal_draw_grid = g_value_get_boolean (value);
if (etree->priv->item) {
gnome_canvas_item_set (GNOME_CANVAS_ITEM(etree->priv->item),
"horizontal_draw_grid", etree->priv->horizontal_draw_grid,
NULL);
}
break;
case PROP_VERTICAL_DRAW_GRID:
etree->priv->vertical_draw_grid = g_value_get_boolean (value);
if (etree->priv->item) {
gnome_canvas_item_set (GNOME_CANVAS_ITEM(etree->priv->item),
"vertical_draw_grid", etree->priv->vertical_draw_grid,
NULL);
}
break;
case PROP_DRAW_FOCUS:
etree->priv->draw_focus = g_value_get_boolean (value);
if (etree->priv->item) {
gnome_canvas_item_set (GNOME_CANVAS_ITEM(etree->priv->item),
"drawfocus", etree->priv->draw_focus,
NULL);
}
break;
case PROP_UNIFORM_ROW_HEIGHT:
etree->priv->uniform_row_height = g_value_get_boolean (value);
if (etree->priv->item) {
gnome_canvas_item_set (GNOME_CANVAS_ITEM(etree->priv->item),
"uniform_row_height", etree->priv->uniform_row_height,
NULL);
}
break;
case PROP_ALWAYS_SEARCH:
if (etree->priv->always_search == g_value_get_boolean (value))
return;
etree->priv->always_search = g_value_get_boolean (value);
clear_current_search_col (etree);
break;
}
}
static void
set_scroll_adjustments (ETree *tree,
GtkAdjustment *hadjustment,
GtkAdjustment *vadjustment)
{
if (vadjustment != NULL) {
vadjustment->step_increment = 20;
gtk_adjustment_changed(vadjustment);
}
if (hadjustment != NULL) {
hadjustment->step_increment = 20;
gtk_adjustment_changed(hadjustment);
}
if (tree->priv) {
gtk_layout_set_hadjustment (GTK_LAYOUT(tree->priv->table_canvas),
hadjustment);
gtk_layout_set_vadjustment (GTK_LAYOUT(tree->priv->table_canvas),
vadjustment);
if (tree->priv->header_canvas != NULL)
gtk_layout_set_hadjustment (GTK_LAYOUT(tree->priv->header_canvas),
hadjustment);
}
}
gint
e_tree_get_next_row (ETree *e_tree,
gint model_row)
{
g_return_val_if_fail(e_tree != NULL, -1);
g_return_val_if_fail(E_IS_TREE(e_tree), -1);
if (e_tree->priv->sorter) {
gint i;
i = e_sorter_model_to_sorted(E_SORTER (e_tree->priv->sorter), model_row);
i++;
if (i < e_table_model_row_count(E_TABLE_MODEL(e_tree->priv->etta))) {
return e_sorter_sorted_to_model(E_SORTER (e_tree->priv->sorter), i);
} else
return -1;
} else
if (model_row < e_table_model_row_count(E_TABLE_MODEL(e_tree->priv->etta)) - 1)
return model_row + 1;
else
return -1;
}
gint
e_tree_get_prev_row (ETree *e_tree,
gint model_row)
{
g_return_val_if_fail(e_tree != NULL, -1);
g_return_val_if_fail(E_IS_TREE(e_tree), -1);
if (e_tree->priv->sorter) {
gint i;
i = e_sorter_model_to_sorted(E_SORTER (e_tree->priv->sorter), model_row);
i--;
if (i >= 0)
return e_sorter_sorted_to_model(E_SORTER (e_tree->priv->sorter), i);
else
return -1;
} else
return model_row - 1;
}
gint
e_tree_model_to_view_row (ETree *e_tree,
gint model_row)
{
g_return_val_if_fail(e_tree != NULL, -1);
g_return_val_if_fail(E_IS_TREE(e_tree), -1);
if (e_tree->priv->sorter)
return e_sorter_model_to_sorted(E_SORTER (e_tree->priv->sorter), model_row);
else
return model_row;
}
gint
e_tree_view_to_model_row (ETree *e_tree,
gint view_row)
{
g_return_val_if_fail(e_tree != NULL, -1);
g_return_val_if_fail(E_IS_TREE(e_tree), -1);
if (e_tree->priv->sorter)
return e_sorter_sorted_to_model (E_SORTER (e_tree->priv->sorter), view_row);
else
return view_row;
}
gboolean
e_tree_node_is_expanded (ETree *et, ETreePath path)
{
g_return_val_if_fail(path, FALSE);
return e_tree_table_adapter_node_is_expanded (et->priv->etta, path);
}
void
e_tree_node_set_expanded (ETree *et, ETreePath path, gboolean expanded)
{
g_return_if_fail (et != NULL);
g_return_if_fail (E_IS_TREE(et));
e_tree_table_adapter_node_set_expanded (et->priv->etta, path, expanded);
}
void
e_tree_node_set_expanded_recurse (ETree *et, ETreePath path, gboolean expanded)
{
g_return_if_fail (et != NULL);
g_return_if_fail (E_IS_TREE(et));
e_tree_table_adapter_node_set_expanded_recurse (et->priv->etta, path, expanded);
}
void
e_tree_root_node_set_visible (ETree *et, gboolean visible)
{
g_return_if_fail (et != NULL);
g_return_if_fail (E_IS_TREE(et));
e_tree_table_adapter_root_node_set_visible (et->priv->etta, visible);
}
ETreePath
e_tree_node_at_row (ETree *et, gint row)
{
ETreePath path;
path = e_tree_table_adapter_node_at_row (et->priv->etta, row);
return path;
}
gint
e_tree_row_of_node (ETree *et, ETreePath path)
{
return e_tree_table_adapter_row_of_node (et->priv->etta, path);
}
gboolean
e_tree_root_node_is_visible(ETree *et)
{
return e_tree_table_adapter_root_node_is_visible (et->priv->etta);
}
void
e_tree_show_node (ETree *et, ETreePath path)
{
g_return_if_fail (et != NULL);
g_return_if_fail (E_IS_TREE(et));
e_tree_table_adapter_show_node (et->priv->etta, path);
}
void
e_tree_save_expanded_state (ETree *et, gchar *filename)
{
g_return_if_fail (et != NULL);
g_return_if_fail (E_IS_TREE(et));
e_tree_table_adapter_save_expanded_state (et->priv->etta, filename);
}
void
e_tree_load_expanded_state (ETree *et, gchar *filename)
{
e_tree_table_adapter_load_expanded_state (et->priv->etta, filename);
}
xmlDoc *
e_tree_save_expanded_state_xml (ETree *et)
{
g_return_val_if_fail (et != NULL, NULL);
g_return_val_if_fail (E_IS_TREE (et), NULL);
return e_tree_table_adapter_save_expanded_state_xml (et->priv->etta);
}
void
e_tree_load_expanded_state_xml (ETree *et, xmlDoc *doc)
{
g_return_if_fail (et != NULL);
g_return_if_fail (E_IS_TREE (et));
g_return_if_fail (doc != NULL);
e_tree_table_adapter_load_expanded_state_xml (et->priv->etta, doc);
}
/* state: <0 ... collapse; 0 ... no force - use default; >0 ... expand;
when using this, be sure to reset to 0 once no forcing is required
anymore, aka the build of the tree is done */
void
e_tree_force_expanded_state (ETree *et, gint state)
{
e_tree_table_adapter_force_expanded_state (et->priv->etta, state);
}
gint
e_tree_row_count (ETree *et)
{
return e_table_model_row_count (E_TABLE_MODEL(et->priv->etta));
}
GtkWidget *
e_tree_get_tooltip (ETree *et)
{
return E_CANVAS(et->priv->table_canvas)->tooltip_window;
}
static ETreePath
find_next_in_range (ETree *et, 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 (et->priv->etta, row);
if (path && func (et->priv->model, path, data))
return path;
}
return NULL;
}
static ETreePath
find_prev_in_range (ETree *et, 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 (et->priv->etta, row);
if (path && func (et->priv->model, path, data))
return path;
}
return NULL;
}
gboolean
e_tree_find_next (ETree *et, ETreeFindNextParams params, ETreePathFunc func, gpointer data)
{
ETreePath cursor, found;
gint row, row_count;
cursor = e_tree_get_cursor (et);
row = e_tree_table_adapter_row_of_node (et->priv->etta, cursor);
row_count = e_table_model_row_count (E_TABLE_MODEL (et->priv->etta));
if (params & E_TREE_FIND_NEXT_FORWARD)
found = find_next_in_range (et, row + 1, row_count - 1, func, data);
else
found = find_prev_in_range (et, row == -1 ? -1 : row - 1, 0, func, data);
if (found) {
e_tree_table_adapter_show_node (et->priv->etta, found);
e_tree_set_cursor (et, found);
return TRUE;
}
if (params & E_TREE_FIND_NEXT_WRAP) {
if (params & E_TREE_FIND_NEXT_FORWARD)
found = find_next_in_range (et, 0, row, func, data);
else
found = find_prev_in_range (et, row_count - 1, row, func, data);
if (found && found != cursor) {
e_tree_table_adapter_show_node (et->priv->etta, found);
e_tree_set_cursor (et, found);
return TRUE;
}
}
return FALSE;
}
void
e_tree_right_click_up (ETree *et)
{
e_selection_model_right_click_up(et->priv->selection);
}
/**
* 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 *et)
{
g_return_val_if_fail (et != NULL, NULL);
g_return_val_if_fail (E_IS_TREE (et), NULL);
return et->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 *et)
{
g_return_val_if_fail (et != NULL, NULL);
g_return_val_if_fail (E_IS_TREE (et), NULL);
return et->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 *et)
{
g_return_val_if_fail (et != NULL, NULL);
g_return_val_if_fail (E_IS_TREE (et), NULL);
return et->priv->etta;
}
ETableItem *
e_tree_get_item(ETree * et)
{
g_return_val_if_fail (et != NULL, NULL);
g_return_val_if_fail (E_IS_TREE (et), NULL);
return E_TABLE_ITEM (et->priv->item);
}
GnomeCanvasItem *
e_tree_get_header_item(ETree * et)
{
g_return_val_if_fail (et != NULL, NULL);
g_return_val_if_fail (E_IS_TREE (et), NULL);
return et->priv->header_item;
}
struct _ETreeDragSourceSite
{
GdkModifierType start_button_mask;
GtkTargetList *target_list; /* Targets for drag data */
GdkDragAction actions; /* Possible actions */
GdkColormap *colormap; /* Colormap for drag icon */
GdkPixmap *pixmap; /* Icon for drag data */
GdkBitmap *mask;
/* 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. */
/* Target */
void
e_tree_drag_get_data (ETree *tree,
gint row,
gint col,
GdkDragContext *context,
GdkAtom target,
guint32 time)
{
g_return_if_fail(tree != NULL);
g_return_if_fail(E_IS_TREE(tree));
gtk_drag_get_data(GTK_WIDGET(tree),
context,
target,
time);
}
/**
* e_tree_drag_highlight:
* @tree:
* @row:
* @col:
*
* Set col to -1 to highlight the entire row.
* Set row to -1 to turn off the highlight.
*/
void
e_tree_drag_highlight (ETree *tree,
gint row,
gint col)
{
g_return_if_fail(tree != NULL);
g_return_if_fail(E_IS_TREE(tree));
if (row != -1) {
gint x, y, width, height;
if (col == -1) {
e_tree_get_cell_geometry (tree, row, 0, &x, &y, &width, &height);
x = 0;
width = GTK_WIDGET (tree->priv->table_canvas)->allocation.width;
} else {
e_tree_get_cell_geometry (tree, row, col, &x, &y, &width, &height);
x += GTK_LAYOUT(tree->priv->table_canvas)->hadjustment->value;
}
y += GTK_LAYOUT(tree->priv->table_canvas)->vadjustment->value;
if (tree->priv->drop_highlight == NULL) {
tree->priv->drop_highlight =
gnome_canvas_item_new (gnome_canvas_root (tree->priv->table_canvas),
gnome_canvas_rect_get_type (),
"fill_color", NULL,
/* "outline_color", "black",
"width_pixels", 1,*/
"outline_color_gdk", &(GTK_WIDGET (tree)->style->fg[GTK_STATE_NORMAL]),
NULL);
}
gnome_canvas_item_set (tree->priv->drop_highlight,
"x1", (gdouble) x,
"x2", (gdouble) x + width - 1,
"y1", (gdouble) y,
"y2", (gdouble) y + height - 1,
NULL);
} else {
gtk_object_destroy (GTK_OBJECT (tree->priv->drop_highlight));
tree->priv->drop_highlight = NULL;
}
}
void
e_tree_drag_unhighlight (ETree *tree)
{
g_return_if_fail(tree != NULL);
g_return_if_fail(E_IS_TREE(tree));
if (tree->priv->drop_highlight) {
gtk_object_destroy (GTK_OBJECT (tree->priv->drop_highlight));
tree->priv->drop_highlight = NULL;
}
}
void e_tree_drag_dest_set (ETree *tree,
GtkDestDefaults flags,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions)
{
g_return_if_fail(tree != NULL);
g_return_if_fail(E_IS_TREE(tree));
gtk_drag_dest_set(GTK_WIDGET(tree),
flags,
targets,
n_targets,
actions);
}
void e_tree_drag_dest_set_proxy (ETree *tree,
GdkWindow *proxy_window,
GdkDragProtocol protocol,
gboolean use_coordinates)
{
g_return_if_fail(tree != NULL);
g_return_if_fail(E_IS_TREE(tree));
gtk_drag_dest_set_proxy(GTK_WIDGET(tree),
proxy_window,
protocol,
use_coordinates);
}
/*
* There probably should be functions for setting the targets
* as a GtkTargetList
*/
void
e_tree_drag_dest_unset (GtkWidget *widget)
{
g_return_if_fail(widget != NULL);
g_return_if_fail(E_IS_TREE(widget));
gtk_drag_dest_unset(widget);
}
/* 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->pixmap)
gtk_drag_set_icon_pixmap (context,
site->colormap,
site->pixmap,
site->mask, -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(tree != NULL);
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 (tree != NULL);
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 (tree != NULL, NULL);
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_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)
{
g_return_if_fail (tree != NULL);
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;
x += GTK_LAYOUT(tree->priv->table_canvas)->hadjustment->value;
y += GTK_LAYOUT(tree->priv->table_canvas)->vadjustment->value;
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)
{
g_return_if_fail (tree != NULL);
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);
if (x_return)
(*x_return) -= GTK_LAYOUT(tree->priv->table_canvas)->hadjustment->value;
if (y_return)
(*y_return) -= GTK_LAYOUT(tree->priv->table_canvas)->vadjustment->value;
}
static void
et_drag_begin (GtkWidget *widget,
GdkDragContext *context,
ETree *et)
{
g_signal_emit (et,
et_signals [TREE_DRAG_BEGIN], 0,
et->priv->drag_row,
et->priv->drag_path,
et->priv->drag_col,
context);
}
static void
et_drag_end (GtkWidget *widget,
GdkDragContext *context,
ETree *et)
{
g_signal_emit (et,
et_signals [TREE_DRAG_END], 0,
et->priv->drag_row,
et->priv->drag_path,
et->priv->drag_col,
context);
}
static void
et_drag_data_get(GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
ETree *et)
{
g_signal_emit (et,
et_signals [TREE_DRAG_DATA_GET], 0,
et->priv->drag_row,
et->priv->drag_path,
et->priv->drag_col,
context,
selection_data,
info,
time);
}
static void
et_drag_data_delete(GtkWidget *widget,
GdkDragContext *context,
ETree *et)
{
g_signal_emit (et,
et_signals [TREE_DRAG_DATA_DELETE], 0,
et->priv->drag_row,
et->priv->drag_path,
et->priv->drag_col,
context);
}
static gboolean
do_drag_motion(ETree *et,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
gboolean ret_val = FALSE;
gint row, col;
ETreePath path;
e_tree_get_cell_at (et,
x,
y,
&row,
&col);
if (row != et->priv->drop_row && col != et->priv->drop_col) {
g_signal_emit (et,
et_signals [TREE_DRAG_LEAVE], 0,
et->priv->drop_row,
et->priv->drop_path,
et->priv->drop_col,
context,
time);
}
path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
et->priv->drop_row = row;
et->priv->drop_path = path;
et->priv->drop_col = col;
g_signal_emit (et,
et_signals [TREE_DRAG_MOTION], 0,
et->priv->drop_row,
et->priv->drop_path,
et->priv->drop_col,
context,
x,
y,
time,
&ret_val);
return ret_val;
}
static gboolean
scroll_timeout (gpointer data)
{
ETree *et = data;
gint dx = 0, dy = 0;
GtkAdjustment *v, *h;
gdouble vvalue, hvalue;
if (et->priv->scroll_direction & ET_SCROLL_DOWN)
dy += 20;
if (et->priv->scroll_direction & ET_SCROLL_UP)
dy -= 20;
if (et->priv->scroll_direction & ET_SCROLL_RIGHT)
dx += 20;
if (et->priv->scroll_direction & ET_SCROLL_LEFT)
dx -= 20;
h = GTK_LAYOUT(et->priv->table_canvas)->hadjustment;
v = GTK_LAYOUT(et->priv->table_canvas)->vadjustment;
hvalue = h->value;
vvalue = v->value;
gtk_adjustment_set_value(h, CLAMP(h->value + dx, h->lower, h->upper - h->page_size));
gtk_adjustment_set_value(v, CLAMP(v->value + dy, v->lower, v->upper - v->page_size));
if (h->value != hvalue ||
v->value != vvalue)
do_drag_motion(et,
et->priv->last_drop_context,
et->priv->last_drop_x,
et->priv->last_drop_y,
et->priv->last_drop_time);
return TRUE;
}
static void
scroll_on (ETree *et, guint scroll_direction)
{
if (et->priv->scroll_idle_id == 0 || scroll_direction != et->priv->scroll_direction) {
if (et->priv->scroll_idle_id != 0)
g_source_remove (et->priv->scroll_idle_id);
et->priv->scroll_direction = scroll_direction;
et->priv->scroll_idle_id = g_timeout_add (100, scroll_timeout, et);
}
}
static void
scroll_off (ETree *et)
{
if (et->priv->scroll_idle_id) {
g_source_remove (et->priv->scroll_idle_id);
et->priv->scroll_idle_id = 0;
}
}
static gboolean
hover_timeout (gpointer data)
{
ETree *et = data;
gint x = et->priv->hover_x;
gint y = et->priv->hover_y;
gint row, col;
ETreePath path;
e_tree_get_cell_at (et,
x,
y,
&row,
&col);
path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
if (path && e_tree_model_node_is_expandable (et->priv->model, path)) {
if (!e_tree_table_adapter_node_is_expanded (et->priv->etta, path)) {
if (e_tree_model_has_save_id (et->priv->model) && e_tree_model_has_get_node_by_id (et->priv->model))
et->priv->expanded_list = g_list_prepend (et->priv->expanded_list, e_tree_model_get_save_id (et->priv->model, path));
e_tree_table_adapter_node_set_expanded (et->priv->etta, path, TRUE);
}
}
return TRUE;
}
static void
hover_on (ETree *et, gint x, gint y)
{
et->priv->hover_x = x;
et->priv->hover_y = y;
if (et->priv->hover_idle_id != 0)
g_source_remove (et->priv->hover_idle_id);
et->priv->hover_idle_id = g_timeout_add (500, hover_timeout, et);
}
static void
hover_off (ETree *et)
{
if (et->priv->hover_idle_id) {
g_source_remove (et->priv->hover_idle_id);
et->priv->hover_idle_id = 0;
}
}
static void
collapse_drag (ETree *et, 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 (et->priv->model, drop);
}
for (list = et->priv->expanded_list; list; list = list->next) {
gchar *save_id = list->data;
ETreePath path;
path = e_tree_model_get_node_by_id (et->priv->model, save_id);
if (path) {
ETreePath search;
gboolean found = FALSE;
for (search = drop; search; search = e_tree_model_node_get_parent (et->priv->model, search)) {
if (path == search) {
found = TRUE;
break;
}
}
if (!found)
e_tree_table_adapter_node_set_expanded (et->priv->etta, path, FALSE);
}
g_free (save_id);
}
g_list_free (et->priv->expanded_list);
et->priv->expanded_list = NULL;
}
static void
context_destroyed (gpointer data, GObject *ctx)
{
ETree *et = data;
if (et->priv) {
et->priv->last_drop_x = 0;
et->priv->last_drop_y = 0;
et->priv->last_drop_time = 0;
et->priv->last_drop_context = NULL;
collapse_drag (et, NULL);
scroll_off (et);
hover_off (et);
}
g_object_unref (et);
}
static void
context_connect (ETree *et, GdkDragContext *context)
{
if (context == et->priv->last_drop_context)
return;
if (et->priv->last_drop_context)
g_object_weak_unref (G_OBJECT(et->priv->last_drop_context), context_destroyed, et);
else
g_object_ref (et);
g_object_weak_ref (G_OBJECT(context), context_destroyed, et);
}
static void
et_drag_leave(GtkWidget *widget,
GdkDragContext *context,
guint time,
ETree *et)
{
g_signal_emit (et,
et_signals [TREE_DRAG_LEAVE], 0,
et->priv->drop_row,
et->priv->drop_path,
et->priv->drop_col,
context,
time);
et->priv->drop_row = -1;
et->priv->drop_col = -1;
scroll_off (et);
hover_off (et);
}
static gboolean
et_drag_motion(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETree *et)
{
gint ret_val;
guint direction = 0;
et->priv->last_drop_x = x;
et->priv->last_drop_y = y;
et->priv->last_drop_time = time;
context_connect (et, context);
et->priv->last_drop_context = context;
if (et->priv->hover_idle_id != 0) {
if (abs (et->priv->hover_x - x) > 3 ||
abs (et->priv->hover_y - y) > 3) {
hover_on (et, x, y);
}
} else {
hover_on (et, x, y);
}
ret_val = do_drag_motion (et,
context,
x,
y,
time);
if (y < 20)
direction |= ET_SCROLL_UP;
if (y > widget->allocation.height - 20)
direction |= ET_SCROLL_DOWN;
if (x < 20)
direction |= ET_SCROLL_LEFT;
if (x > widget->allocation.width - 20)
direction |= ET_SCROLL_RIGHT;
if (direction != 0)
scroll_on (et, direction);
else
scroll_off (et);
return ret_val;
}
static gboolean
et_drag_drop(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETree *et)
{
gboolean ret_val = FALSE;
gint row, col;
ETreePath path;
e_tree_get_cell_at(et,
x,
y,
&row,
&col);
path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
if (row != et->priv->drop_row && col != et->priv->drop_row) {
g_signal_emit (et,
et_signals [TREE_DRAG_LEAVE], 0,
et->priv->drop_row,
et->priv->drop_path,
et->priv->drop_col,
context,
time);
g_signal_emit (et,
et_signals [TREE_DRAG_MOTION], 0,
row,
path,
col,
context,
x,
y,
time,
&ret_val);
}
et->priv->drop_row = row;
et->priv->drop_path = path;
et->priv->drop_col = col;
g_signal_emit (et,
et_signals [TREE_DRAG_DROP], 0,
et->priv->drop_row,
et->priv->drop_path,
et->priv->drop_col,
context,
x,
y,
time,
&ret_val);
et->priv->drop_row = -1;
et->priv->drop_path = NULL;
et->priv->drop_col = -1;
collapse_drag (et, path);
scroll_off (et);
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 *et)
{
gint row, col;
ETreePath path;
e_tree_get_cell_at(et,
x,
y,
&row,
&col);
path = e_tree_table_adapter_node_at_row(et->priv->etta, row);
g_signal_emit (et,
et_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;
object_class = (GObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
object_class->dispose = et_dispose;
object_class->set_property = et_set_property;
object_class->get_property = et_get_property;
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->cursor_change = NULL;
class->cursor_activated = NULL;
class->selection_change = NULL;
class->double_click = NULL;
class->right_click = NULL;
class->click = NULL;
class->key_press = NULL;
class->start_drag = et_real_start_drag;
class->state_change = NULL;
class->white_space_event = NULL;
class->tree_drag_begin = NULL;
class->tree_drag_end = NULL;
class->tree_drag_data_get = NULL;
class->tree_drag_data_delete = NULL;
class->tree_drag_leave = NULL;
class->tree_drag_motion = NULL;
class->tree_drag_drop = NULL;
class->tree_drag_data_received = NULL;
et_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);
et_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);
et_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);
et_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);
et_signals [RIGHT_CLICK] =
g_signal_new ("right_click",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, right_click),
NULL, NULL,
e_marshal_INT__INT_POINTER_INT_BOXED,
G_TYPE_INT, 4, G_TYPE_INT, G_TYPE_POINTER,
G_TYPE_INT, GDK_TYPE_EVENT);
et_signals [CLICK] =
g_signal_new ("click",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, click),
NULL, NULL,
e_marshal_INT__INT_POINTER_INT_BOXED,
G_TYPE_INT, 4, G_TYPE_INT, G_TYPE_POINTER,
G_TYPE_INT, GDK_TYPE_EVENT);
et_signals [KEY_PRESS] =
g_signal_new ("key_press",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, key_press),
NULL, NULL,
e_marshal_INT__INT_POINTER_INT_BOXED,
G_TYPE_INT, 4, G_TYPE_INT, G_TYPE_POINTER,
G_TYPE_INT, GDK_TYPE_EVENT);
et_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);
et_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);
et_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),
NULL, NULL,
e_marshal_INT__POINTER,
G_TYPE_INT, 1, GDK_TYPE_EVENT);
et_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);
et_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);
et_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);
et_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);
et_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);
et_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);
et_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);
et_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);
class->set_scroll_adjustments = set_scroll_adjustments;
widget_class->set_scroll_adjustments_signal =
g_signal_new ("set_scroll_adjustments",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETreeClass, set_scroll_adjustments),
NULL, NULL,
e_marshal_NONE__OBJECT_OBJECT,
G_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT,
GTK_TYPE_ADJUSTMENT);
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_TREE_TABLE_ADAPTER_TYPE,
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_boolean ("retro_look",
_("Retro Look"),
_("Draw lines and +/- expanders."),
FALSE,
G_PARAM_READABLE));
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));
gal_a11y_e_tree_init ();
}
static void
tree_size_allocate (GtkWidget *widget, GtkAllocation *alloc, ETree *tree)
{
gdouble width;
g_return_if_fail (tree != NULL);
g_return_if_fail (tree->priv != NULL);
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)
{
g_return_if_fail (tree != NULL);
g_return_if_fail (tree->priv != NULL);
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);
gtk_object_destroy (GTK_OBJECT (tree->priv->info_text));
tree->priv->info_text = NULL;
return;
}
if (!tree->priv->info_text) {
tree->priv->info_text = gnome_canvas_item_new (GNOME_CANVAS_GROUP (gnome_canvas_root (tree->priv->table_canvas)),
e_text_get_type (),
"anchor", GTK_ANCHOR_NW,
"line_wrap", TRUE,
"clip", TRUE,
"justification", GTK_JUSTIFY_LEFT,
"text", info_message,
"draw_background", FALSE,
"width", (gdouble) GTK_WIDGET (tree->priv->table_canvas)->allocation.width - 60.0,
"clip_width", (gdouble) GTK_WIDGET (tree->priv->table_canvas)->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);
}