/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* E-table.c: A graphical view of a Table.
*
* Author:
* Miguel de Icaza (miguel@ximian.com)
* Chris Lahey <clahey@ximian.com>
*
* Copyright 1999, 2000, 2001, Ximian, Inc
*/
#include <config.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdio.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtksignal.h>
#include <libgnomeui/gnome-canvas.h>
#include <libgnomeui/gnome-canvas-rect-ellipse.h>
#include "gal/util/e-i18n.h"
#include "gal/util/e-util.h"
#include "gal/widgets/e-canvas.h"
#include "gal/widgets/e-canvas-vbox.h"
#include "gal/widgets/e-unicode.h"
#include "e-table.h"
#include "e-table-header-item.h"
#include "e-table-header-utils.h"
#include "e-table-subset.h"
#include "e-table-item.h"
#include "e-table-group.h"
#include "e-table-group-leaf.h"
#include "e-table-click-to-add.h"
#include "e-table-specification.h"
#include "e-table-state.h"
#include "e-table-column-specification.h"
#include "e-table-utils.h"
#define COLUMN_HEADER_HEIGHT 16
#define PARENT_TYPE gtk_table_get_type ()
static GtkObjectClass *e_table_parent_class;
enum {
CURSOR_CHANGE,
CURSOR_ACTIVATED,
SELECTION_CHANGE,
DOUBLE_CLICK,
RIGHT_CLICK,
CLICK,
KEY_PRESS,
TABLE_DRAG_BEGIN,
TABLE_DRAG_END,
TABLE_DRAG_DATA_GET,
TABLE_DRAG_DATA_DELETE,
TABLE_DRAG_LEAVE,
TABLE_DRAG_MOTION,
TABLE_DRAG_DROP,
TABLE_DRAG_DATA_RECEIVED,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_LENGTH_THRESHOLD,
ARG_MODEL,
};
static gint et_signals [LAST_SIGNAL] = { 0, };
static void e_table_fill_table (ETable *e_table, ETableModel *model);
static gboolean changed_idle (gpointer data);
static void et_grab_focus (GtkWidget *widget);
static void et_drag_begin (GtkWidget *widget,
GdkDragContext *context,
ETable *et);
static void et_drag_end (GtkWidget *widget,
GdkDragContext *context,
ETable *et);
static void et_drag_data_get(GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
ETable *et);
static void et_drag_data_delete(GtkWidget *widget,
GdkDragContext *context,
ETable *et);
static void et_drag_leave(GtkWidget *widget,
GdkDragContext *context,
guint time,
ETable *et);
static gboolean et_drag_motion(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETable *et);
static gboolean et_drag_drop(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETable *et);
static void et_drag_data_received(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time,
ETable *et);
static gint e_table_drag_source_event_cb (GtkWidget *widget,
GdkEvent *event,
ETable *table);
static gint et_focus (GtkContainer *container, GtkDirectionType direction);
static void
et_disconnect_model (ETable *et)
{
if (et->model == NULL)
return;
if (et->table_model_change_id != 0)
gtk_signal_disconnect (GTK_OBJECT (et->model),
et->table_model_change_id);
if (et->table_row_change_id != 0)
gtk_signal_disconnect (GTK_OBJECT (et->model),
et->table_row_change_id);
if (et->table_cell_change_id != 0)
gtk_signal_disconnect (GTK_OBJECT (et->model),
et->table_cell_change_id);
if (et->table_rows_inserted_id != 0)
gtk_signal_disconnect (GTK_OBJECT (et->model),
et->table_rows_inserted_id);
if (et->table_rows_deleted_id != 0)
gtk_signal_disconnect (GTK_OBJECT (et->model),
et->table_rows_deleted_id);
et->table_model_change_id = 0;
et->table_row_change_id = 0;
et->table_cell_change_id = 0;
et->table_rows_inserted_id = 0;
et->table_rows_deleted_id = 0;
}
static void
et_destroy (GtkObject *object)
{
ETable *et = E_TABLE (object);
et_disconnect_model (et);
if (et->group_info_change_id)
gtk_signal_disconnect (GTK_OBJECT (et->sort_info),
et->group_info_change_id);
if (et->reflow_idle_id)
g_source_remove(et->reflow_idle_id);
et->reflow_idle_id = 0;
gtk_object_unref (GTK_OBJECT (et->model));
gtk_object_unref (GTK_OBJECT (et->full_header));
gtk_object_unref (GTK_OBJECT (et->header));
gtk_object_unref (GTK_OBJECT (et->sort_info));
gtk_object_unref (GTK_OBJECT (et->sorter));
gtk_object_unref (GTK_OBJECT (et->selection));
if (et->spec)
gtk_object_unref (GTK_OBJECT (et->spec));
if (et->header_canvas != NULL)
gtk_widget_destroy (GTK_WIDGET (et->header_canvas));
if (et->site != NULL)
e_table_drag_source_unset (et);
gtk_widget_destroy (GTK_WIDGET (et->table_canvas));
if (et->rebuild_idle_id) {
g_source_remove (et->rebuild_idle_id);
et->rebuild_idle_id = 0;
}
g_free(et->click_to_add_message);
(*e_table_parent_class->destroy)(object);
}
static void
e_table_init (GtkObject *object)
{
ETable *e_table = E_TABLE (object);
GtkTable *gtk_table = GTK_TABLE (object);
GTK_WIDGET_SET_FLAGS (e_table, GTK_CAN_FOCUS);
gtk_table->homogeneous = FALSE;
e_table->sort_info = NULL;
e_table->group_info_change_id = 0;
e_table->reflow_idle_id = 0;
e_table->alternating_row_colors = 1;
e_table->horizontal_draw_grid = 1;
e_table->vertical_draw_grid = 1;
e_table->draw_focus = 1;
e_table->cursor_mode = E_CURSOR_SIMPLE;
e_table->length_threshold = 200;
e_table->need_rebuild = 0;
e_table->rebuild_idle_id = 0;
e_table->horizontal_scrolling = FALSE;
e_table->click_to_add_message = NULL;
e_table->drag_get_data_row = -1;
e_table->drag_get_data_col = -1;
e_table->drop_row = -1;
e_table->drop_col = -1;
e_table->site = NULL;
e_table->drag_source_button_press_event_id = 0;
e_table->drag_source_motion_notify_event_id = 0;
e_table->sorter = NULL;
e_table->selection = e_table_selection_model_new();
e_table->cursor_loc = E_TABLE_CURSOR_LOC_NONE;
e_table->spec = NULL;
}
/* Grab_focus handler for the ETable */
static void
et_grab_focus (GtkWidget *widget)
{
ETable *e_table;
e_table = E_TABLE (widget);
gtk_widget_grab_focus (GTK_WIDGET (e_table->table_canvas));
}
/* Focus handler for the ETable */
static gint
et_focus (GtkContainer *container, GtkDirectionType direction)
{
ETable *e_table;
e_table = E_TABLE (container);
if (container->focus_child) {
gtk_container_set_focus_child (container, NULL);
return FALSE;
}
return gtk_container_focus (GTK_CONTAINER (e_table->table_canvas), direction);
}
static void
set_header_canvas_width (ETable *e_table)
{
double oldwidth, oldheight, width;
if (!(e_table->header_item && e_table->header_canvas && e_table->table_canvas))
return;
gnome_canvas_get_scroll_region (GNOME_CANVAS (e_table->table_canvas),
NULL, NULL, &width, NULL);
gnome_canvas_get_scroll_region (GNOME_CANVAS (e_table->header_canvas),
NULL, NULL, &oldwidth, &oldheight);
if (oldwidth != width ||
oldheight != E_TABLE_HEADER_ITEM (e_table->header_item)->height - 1)
gnome_canvas_set_scroll_region (
GNOME_CANVAS (e_table->header_canvas),
0, 0, width, /* COLUMN_HEADER_HEIGHT - 1 */
E_TABLE_HEADER_ITEM (e_table->header_item)->height - 1);
}
static void
header_canvas_size_allocate (GtkWidget *widget, GtkAllocation *alloc, ETable *e_table)
{
set_header_canvas_width (e_table);
/* 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_table->header_canvas)->allocation.height !=
E_TABLE_HEADER_ITEM (e_table->header_item)->height)
gtk_widget_set_usize (GTK_WIDGET (e_table->header_canvas), -1,
E_TABLE_HEADER_ITEM (e_table->header_item)->height);
}
static void
sort_info_changed (ETableSortInfo *info, ETable *et)
{
gboolean will_be_grouped = e_table_sort_info_grouping_get_count(info) > 0;
if (et->is_grouped || will_be_grouped) {
et->need_rebuild = TRUE;
if (!et->rebuild_idle_id) {
gtk_object_destroy (GTK_OBJECT (et->group));
et->group = NULL;
et->rebuild_idle_id = g_idle_add_full (20, changed_idle, et, NULL);
}
}
}
static void
e_table_setup_header (ETable *e_table)
{
char *pointer;
e_table->header_canvas = GNOME_CANVAS (e_canvas_new ());
GTK_WIDGET_UNSET_FLAGS (e_table->header_canvas, GTK_CAN_FOCUS);
gtk_widget_show (GTK_WIDGET (e_table->header_canvas));
pointer = g_strdup_printf("%p", e_table);
e_table->header_item = gnome_canvas_item_new (
gnome_canvas_root (e_table->header_canvas),
e_table_header_item_get_type (),
"ETableHeader", e_table->header,
"full_header", e_table->full_header,
"sort_info", e_table->sort_info,
"dnd_code", pointer,
"table", e_table,
NULL);
g_free(pointer);
gtk_signal_connect (
GTK_OBJECT (e_table->header_canvas), "size_allocate",
GTK_SIGNAL_FUNC (header_canvas_size_allocate), e_table);
gtk_widget_set_usize (GTK_WIDGET (e_table->header_canvas), -1,
E_TABLE_HEADER_ITEM (e_table->header_item)->height);
}
static gboolean
table_canvas_reflow_idle (ETable *e_table)
{
gdouble height, width;
gdouble item_height;
gdouble oldheight, oldwidth;
GtkAllocation *alloc = &(GTK_WIDGET (e_table->table_canvas)->allocation);
gtk_object_get (GTK_OBJECT (e_table->canvas_vbox),
"height", &height,
"width", &width,
NULL);
item_height = height;
height = MAX ((int)height, alloc->height);
width = MAX((int)width, alloc->width);
/* I have no idea why this needs to be -1, but it works. */
gnome_canvas_get_scroll_region (GNOME_CANVAS (e_table->table_canvas),
NULL, NULL, &oldwidth, &oldheight);
if (oldwidth != width - 1 ||
oldheight != height - 1) {
gnome_canvas_set_scroll_region (GNOME_CANVAS (e_table->table_canvas),
0, 0, width - 1, height - 1);
set_header_canvas_width (e_table);
}
gtk_object_set (GTK_OBJECT (e_table->white_item),
"y1", item_height,
"x2", width,
"y2", height,
NULL);
e_table->reflow_idle_id = 0;
return FALSE;
}
static void
table_canvas_size_allocate (GtkWidget *widget, GtkAllocation *alloc,
ETable *e_table)
{
gdouble width;
gdouble height;
gdouble item_height;
width = alloc->width;
gtk_object_get (GTK_OBJECT (e_table->canvas_vbox),
"height", &height,
NULL);
item_height = height;
height = MAX ((int)height, alloc->height);
gtk_object_set (GTK_OBJECT (e_table->canvas_vbox),
"width", width,
NULL);
gtk_object_set (GTK_OBJECT (e_table->header),
"width", width,
NULL);
gtk_object_set (GTK_OBJECT (e_table->white_item),
"y1", item_height + 1,
"x2", width,
"y2", height,
NULL);
if (e_table->reflow_idle_id)
g_source_remove(e_table->reflow_idle_id);
table_canvas_reflow_idle(e_table);
}
static void
table_canvas_reflow (GnomeCanvas *canvas, ETable *e_table)
{
if (!e_table->reflow_idle_id)
e_table->reflow_idle_id = g_idle_add_full (400, (GSourceFunc) table_canvas_reflow_idle, e_table, NULL);
}
static void
click_to_add_cursor_change (ETableClickToAdd *etcta, int row, int col, ETable *et)
{
if (et->cursor_loc == E_TABLE_CURSOR_LOC_TABLE) {
e_selection_model_clear(E_SELECTION_MODEL (et->selection));
}
et->cursor_loc = E_TABLE_CURSOR_LOC_ETCTA;
}
static void
group_cursor_change (ETableGroup *etg, int row, ETable *et)
{
if (et->cursor_loc == E_TABLE_CURSOR_LOC_ETCTA && et->click_to_add) {
e_table_click_to_add_commit(E_TABLE_CLICK_TO_ADD(et->click_to_add));
}
et->cursor_loc = E_TABLE_CURSOR_LOC_TABLE;
gtk_signal_emit (GTK_OBJECT (et),
et_signals [CURSOR_CHANGE],
row);
}
static void
group_cursor_activated (ETableGroup *etg, int row, ETable *et)
{
gtk_signal_emit (GTK_OBJECT (et),
et_signals [CURSOR_ACTIVATED],
row);
}
static void
group_double_click (ETableGroup *etg, int row, int col, GdkEvent *event, ETable *et)
{
gtk_signal_emit (GTK_OBJECT (et),
et_signals [DOUBLE_CLICK],
row, col, event);
}
static gint
group_right_click (ETableGroup *etg, int row, int col, GdkEvent *event, ETable *et)
{
int return_val = 0;
gtk_signal_emit (GTK_OBJECT (et),
et_signals [RIGHT_CLICK],
row, col, event, &return_val);
return return_val;
}
static gint
group_click (ETableGroup *etg, int row, int col, GdkEvent *event, ETable *et)
{
int return_val = 0;
gtk_signal_emit (GTK_OBJECT (et),
et_signals [CLICK],
row, col, event, &return_val);
return return_val;
}
static gint
group_key_press (ETableGroup *etg, int row, int col, GdkEvent *event, ETable *et)
{
int return_val = 0;
GdkEventKey *key = (GdkEventKey *) event;
GdkEventButton click;
switch (key->keyval) {
case GDK_Page_Down:
gtk_adjustment_set_value(
gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas)),
CLAMP(gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->value +
(gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->page_size - 20),
0,
gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->upper -
gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->page_size));
click.type = GDK_BUTTON_PRESS;
click.window = GTK_LAYOUT (et->table_canvas)->bin_window;
click.send_event = key->send_event;
click.time = key->time;
click.x = 30;
click.y = gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->page_size - 1;
click.state = key->state;
click.button = 1;
gtk_widget_event(GTK_WIDGET(et->table_canvas),
(GdkEvent *) &click);
return_val = 1;
break;
case GDK_Page_Up:
gtk_adjustment_set_value(
gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas)),
gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->value -
(gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->page_size - 20));
click.type = GDK_BUTTON_PRESS;
click.window = GTK_LAYOUT (et->table_canvas)->bin_window;
click.send_event = key->send_event;
click.time = key->time;
click.x = 30;
click.y = 1;
click.state = key->state;
click.button = 1;
gtk_widget_event(GTK_WIDGET(et->table_canvas),
(GdkEvent *) &click);
return_val = 1;
break;
default:
gtk_signal_emit (GTK_OBJECT (et),
et_signals [KEY_PRESS],
row, col, event, &return_val);
break;
}
return return_val;
}
static void
et_table_model_changed (ETableModel *model, ETable *et)
{
et->need_rebuild = TRUE;
if (!et->rebuild_idle_id) {
gtk_object_destroy (GTK_OBJECT (et->group));
et->group = NULL;
et->rebuild_idle_id = g_idle_add_full (20, changed_idle, et, NULL);
}
}
static void
et_table_row_changed (ETableModel *table_model, int row, ETable *et)
{
if (!et->need_rebuild) {
if (e_table_group_remove (et->group, row))
e_table_group_add (et->group, row);
if (et->horizontal_scrolling)
e_table_header_update_horizontal(et->header);
}
}
static void
et_table_cell_changed (ETableModel *table_model, int view_col, int row, ETable *et)
{
et_table_row_changed (table_model, row, et);
}
static void
et_table_rows_inserted (ETableModel *table_model, int row, int count, ETable *et)
{
/* This number has already been decremented. */
int row_count = e_table_model_row_count(table_model);
if (!et->need_rebuild) {
int i;
if (row != row_count - count)
e_table_group_increment(et->group, row, count);
for (i = 0; i < count; i++)
e_table_group_add (et->group, row + i);
if (et->horizontal_scrolling)
e_table_header_update_horizontal(et->header);
}
}
static void
et_table_rows_deleted (ETableModel *table_model, int row, int count, ETable *et)
{
int row_count = e_table_model_row_count(table_model);
if (!et->need_rebuild) {
int i;
for (i = 0; i < count; i++)
e_table_group_remove (et->group, row + i);
if (row != row_count)
e_table_group_decrement(et->group, row, count);
if (et->horizontal_scrolling)
e_table_header_update_horizontal(et->header);
}
}
static void
et_build_groups (ETable *et)
{
gboolean was_grouped = et->is_grouped;
et->is_grouped = e_table_sort_info_grouping_get_count(et->sort_info) > 0;
et->group = e_table_group_new (GNOME_CANVAS_GROUP (et->canvas_vbox),
et->full_header,
et->header,
et->model,
et->sort_info,
0);
e_canvas_vbox_add_item(E_CANVAS_VBOX(et->canvas_vbox), GNOME_CANVAS_ITEM(et->group));
gnome_canvas_item_set(GNOME_CANVAS_ITEM(et->group),
"alternating_row_colors", et->alternating_row_colors,
"horizontal_draw_grid", et->horizontal_draw_grid,
"vertical_draw_grid", et->vertical_draw_grid,
"drawfocus", et->draw_focus,
"cursor_mode", et->cursor_mode,
"length_threshold", et->length_threshold,
"selection_model", et->selection,
NULL);
gtk_signal_connect (GTK_OBJECT (et->group), "cursor_change",
GTK_SIGNAL_FUNC (group_cursor_change), et);
gtk_signal_connect (GTK_OBJECT (et->group), "cursor_activated",
GTK_SIGNAL_FUNC (group_cursor_activated), et);
gtk_signal_connect (GTK_OBJECT (et->group), "double_click",
GTK_SIGNAL_FUNC (group_double_click), et);
gtk_signal_connect (GTK_OBJECT (et->group), "right_click",
GTK_SIGNAL_FUNC (group_right_click), et);
gtk_signal_connect (GTK_OBJECT (et->group), "click",
GTK_SIGNAL_FUNC (group_click), et);
gtk_signal_connect (GTK_OBJECT (et->group), "key_press",
GTK_SIGNAL_FUNC (group_key_press), et);
if (!(et->is_grouped) && was_grouped)
et_disconnect_model (et);
if (et->is_grouped && (!was_grouped)) {
et->table_model_change_id = gtk_signal_connect (GTK_OBJECT (et->model), "model_changed",
GTK_SIGNAL_FUNC (et_table_model_changed), et);
et->table_row_change_id = gtk_signal_connect (GTK_OBJECT (et->model), "model_row_changed",
GTK_SIGNAL_FUNC (et_table_row_changed), et);
et->table_cell_change_id = gtk_signal_connect (GTK_OBJECT (et->model), "model_cell_changed",
GTK_SIGNAL_FUNC (et_table_cell_changed), et);
et->table_rows_inserted_id = gtk_signal_connect (GTK_OBJECT (et->model), "model_rows_inserted",
GTK_SIGNAL_FUNC (et_table_rows_inserted), et);
et->table_rows_deleted_id = gtk_signal_connect (GTK_OBJECT (et->model), "model_rows_deleted",
GTK_SIGNAL_FUNC (et_table_rows_deleted), et);
}
if (et->is_grouped)
e_table_fill_table (et, et->model);
}
static gboolean
changed_idle (gpointer data)
{
ETable *et = E_TABLE (data);
if (et->need_rebuild) {
if (et->group)
gtk_object_destroy (GTK_OBJECT (et->group));
et_build_groups(et);
gtk_object_set (GTK_OBJECT (et->canvas_vbox),
"width", (double) GTK_WIDGET (et->table_canvas)->allocation.width,
NULL);
if (GTK_WIDGET_REALIZED(et->table_canvas))
table_canvas_size_allocate (GTK_WIDGET(et->table_canvas), >K_WIDGET(et->table_canvas)->allocation, et);
}
et->need_rebuild = 0;
et->rebuild_idle_id = 0;
if (et->horizontal_scrolling)
e_table_header_update_horizontal(et->header);
return FALSE;
}
static void
et_canvas_realize (GtkWidget *canvas, ETable *e_table)
{
gnome_canvas_item_set(
e_table->white_item,
"fill_color_gdk", >K_WIDGET(e_table->table_canvas)->style->base[GTK_STATE_NORMAL],
NULL);
}
static void
et_canvas_button_press (GtkWidget *canvas, GdkEvent *event, ETable *e_table)
{
if (GTK_WIDGET_HAS_FOCUS(canvas)) {
GnomeCanvasItem *item = GNOME_CANVAS(canvas)->focused_item;
if (E_IS_TABLE_ITEM(item)) {
e_table_item_leave_edit(E_TABLE_ITEM(item));
}
}
}
static void
e_table_setup_table (ETable *e_table, ETableHeader *full_header, ETableHeader *header,
ETableModel *model)
{
e_table->table_canvas = GNOME_CANVAS (e_canvas_new ());
gtk_signal_connect (
GTK_OBJECT (e_table->table_canvas), "size_allocate",
GTK_SIGNAL_FUNC (table_canvas_size_allocate), e_table);
gtk_signal_connect (
GTK_OBJECT (e_table->table_canvas), "focus_in_event",
GTK_SIGNAL_FUNC (gtk_widget_queue_draw), e_table);
gtk_signal_connect (
GTK_OBJECT (e_table->table_canvas), "focus_out_event",
GTK_SIGNAL_FUNC (gtk_widget_queue_draw), e_table);
gtk_signal_connect (
GTK_OBJECT (e_table), "drag_begin",
GTK_SIGNAL_FUNC (et_drag_begin), e_table);
gtk_signal_connect (
GTK_OBJECT (e_table), "drag_end",
GTK_SIGNAL_FUNC (et_drag_end), e_table);
gtk_signal_connect (
GTK_OBJECT (e_table), "drag_data_get",
GTK_SIGNAL_FUNC (et_drag_data_get), e_table);
gtk_signal_connect (
GTK_OBJECT (e_table), "drag_data_delete",
GTK_SIGNAL_FUNC (et_drag_data_delete), e_table);
gtk_signal_connect (
GTK_OBJECT (e_table), "drag_motion",
GTK_SIGNAL_FUNC (et_drag_motion), e_table);
gtk_signal_connect (
GTK_OBJECT (e_table), "drag_leave",
GTK_SIGNAL_FUNC (et_drag_leave), e_table);
gtk_signal_connect (
GTK_OBJECT (e_table), "drag_drop",
GTK_SIGNAL_FUNC (et_drag_drop), e_table);
gtk_signal_connect (
GTK_OBJECT (e_table), "drag_data_received",
GTK_SIGNAL_FUNC (et_drag_data_received), e_table);
gtk_signal_connect (GTK_OBJECT(e_table->table_canvas), "reflow",
GTK_SIGNAL_FUNC (table_canvas_reflow), e_table);
gtk_widget_show (GTK_WIDGET (e_table->table_canvas));
e_table->white_item = gnome_canvas_item_new(
gnome_canvas_root(e_table->table_canvas),
gnome_canvas_rect_get_type(),
"x1", (double) 0,
"y1", (double) 0,
"x2", (double) 100,
"y2", (double) 100,
"fill_color_gdk", >K_WIDGET(e_table->table_canvas)->style->base[GTK_STATE_NORMAL],
NULL);
gtk_signal_connect (
GTK_OBJECT(e_table->table_canvas), "realize",
GTK_SIGNAL_FUNC(et_canvas_realize), e_table);
gtk_signal_connect (
GTK_OBJECT(e_table->table_canvas), "button_press_event",
GTK_SIGNAL_FUNC(et_canvas_button_press), e_table);
e_table->canvas_vbox = gnome_canvas_item_new(
gnome_canvas_root(e_table->table_canvas),
e_canvas_vbox_get_type(),
"spacing", 10.0,
NULL);
if (e_table->use_click_to_add) {
e_table->click_to_add = gnome_canvas_item_new (
GNOME_CANVAS_GROUP(e_table->canvas_vbox),
e_table_click_to_add_get_type (),
"header", e_table->header,
"model", e_table->model,
"message", e_table->click_to_add_message,
NULL);
e_canvas_vbox_add_item (
E_CANVAS_VBOX(e_table->canvas_vbox),
e_table->click_to_add);
gtk_signal_connect (
GTK_OBJECT (e_table->click_to_add), "cursor_change",
GTK_SIGNAL_FUNC(click_to_add_cursor_change), e_table);
}
et_build_groups(e_table);
}
static void
e_table_fill_table (ETable *e_table, ETableModel *model)
{
e_table_group_add_all (e_table->group);
}
void
e_table_set_state_object(ETable *e_table, ETableState *state)
{
if (e_table->header)
gtk_object_unref(GTK_OBJECT(e_table->header));
e_table->header = e_table_state_to_header (GTK_WIDGET(e_table), e_table->full_header, state);
gtk_object_set (GTK_OBJECT (e_table->header),
"width", (double) (GTK_WIDGET(e_table->table_canvas)->allocation.width),
NULL);
if (e_table->sort_info) {
if (e_table->group_info_change_id)
gtk_signal_disconnect (GTK_OBJECT (e_table->sort_info),
e_table->group_info_change_id);
gtk_object_unref(GTK_OBJECT(e_table->sort_info));
}
if (state->sort_info) {
e_table->sort_info = e_table_sort_info_duplicate(state->sort_info);
e_table->group_info_change_id =
gtk_signal_connect (GTK_OBJECT (e_table->sort_info),
"group_info_changed",
GTK_SIGNAL_FUNC (sort_info_changed),
e_table);
}
else
e_table->sort_info = NULL;
if (e_table->sorter)
gtk_object_set(GTK_OBJECT(e_table->sorter),
"sort_info", e_table->sort_info,
NULL);
if (e_table->header_item)
gtk_object_set(GTK_OBJECT(e_table->header_item),
"ETableHeader", e_table->header,
"sort_info", e_table->sort_info,
NULL);
if (e_table->click_to_add)
gtk_object_set(GTK_OBJECT(e_table->click_to_add),
"header", e_table->header,
NULL);
e_table->need_rebuild = TRUE;
if (!e_table->rebuild_idle_id)
e_table->rebuild_idle_id = g_idle_add_full (20, changed_idle, e_table, NULL);
}
/**
* e_table_set_state:
* @e_table: %ETable 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
* %ETable object.
*/
void
e_table_set_state (ETable *e_table,
const gchar *state_str)
{
ETableState *state;
g_return_if_fail(e_table != NULL);
g_return_if_fail(E_IS_TABLE(e_table));
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_table_set_state_object(e_table, state);
gtk_object_unref(GTK_OBJECT(state));
}
/**
* e_table_load_state:
* @e_table: %ETable object that will be modified
* @filename: name of the file containing the state to be loaded into the %ETable
*
* An %ETableState will be loaded form the file pointed by @filename into the
* @e_table object.
*/
void
e_table_load_state (ETable *e_table,
const gchar *filename)
{
ETableState *state;
g_return_if_fail(e_table != NULL);
g_return_if_fail(E_IS_TABLE(e_table));
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_table_set_state_object(e_table, state);
gtk_object_unref(GTK_OBJECT(state));
}
/**
* e_table_get_state_object:
* @e_table: %ETable object that will be modified
*
* Returns: the %ETableState object that encapsulates the current
* state of the @e_table object
*/
ETableState *
e_table_get_state_object (ETable *e_table)
{
ETableState *state;
int full_col_count;
int i, j;
state = e_table_state_new();
state->sort_info = e_table->sort_info;
gtk_object_ref(GTK_OBJECT(state->sort_info));
state->col_count = e_table_header_count (e_table->header);
full_col_count = e_table_header_count (e_table->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_table->header, i);
state->columns[i] = -1;
for (j = 0; j < full_col_count; j++) {
if (col->col_idx == e_table_header_index(e_table->full_header, j)) {
state->columns[i] = j;
break;
}
}
state->expansions[i] = col->expansion;
}
return state;
}
gchar *e_table_get_state (ETable *e_table)
{
ETableState *state;
gchar *string;
state = e_table_get_state_object(e_table);
string = e_table_state_save_to_string(state);
gtk_object_unref(GTK_OBJECT(state));
return string;
}
/**
* e_table_save_state:
* @e_table: %ETable object that will be modified
* @filename: name of the file containing the state to be loaded into the %ETable
*
* This routine saves the state of the @e_table object into the file pointed
* by @filename
*/
void
e_table_save_state (ETable *e_table,
const gchar *filename)
{
ETableState *state;
state = e_table_get_state_object(e_table);
e_table_state_save_to_file(state, filename);
gtk_object_unref(GTK_OBJECT(state));
}
static void
et_selection_model_selection_change (ETableGroup *etg, ETable *et)
{
gtk_signal_emit (GTK_OBJECT (et),
et_signals [SELECTION_CHANGE]);
}
static ETable *
et_real_construct (ETable *e_table, ETableModel *etm, ETableExtras *ete,
ETableSpecification *specification, ETableState *state)
{
int row = 0;
if (ete)
gtk_object_ref(GTK_OBJECT(ete));
else
ete = e_table_extras_new();
e_table->use_click_to_add = specification->click_to_add;
e_table->click_to_add_message = e_utf8_from_locale_string (gettext (specification->click_to_add_message));
e_table->alternating_row_colors = specification->alternating_row_colors;
e_table->horizontal_draw_grid = specification->horizontal_draw_grid;
e_table->vertical_draw_grid = specification->vertical_draw_grid;
e_table->draw_focus = specification->draw_focus;
e_table->cursor_mode = specification->cursor_mode;
e_table->full_header = e_table_spec_to_full_header(specification, ete);
gtk_object_set(GTK_OBJECT(e_table->selection),
"selection_mode", specification->selection_mode,
"cursor_mode", specification->cursor_mode,
NULL);
e_table->model = etm;
gtk_object_ref (GTK_OBJECT (etm));
gtk_widget_push_visual (gdk_rgb_get_visual ());
gtk_widget_push_colormap (gdk_rgb_get_cmap ());
e_table->header = e_table_state_to_header (GTK_WIDGET(e_table), e_table->full_header, state);
e_table->horizontal_scrolling = specification->horizontal_scrolling;
e_table->sort_info = state->sort_info;
gtk_object_ref (GTK_OBJECT (state->sort_info));
e_table->group_info_change_id =
gtk_signal_connect (GTK_OBJECT (e_table->sort_info), "group_info_changed",
GTK_SIGNAL_FUNC (sort_info_changed), e_table);
gtk_object_set(GTK_OBJECT(e_table->header),
"sort_info", e_table->sort_info,
NULL);
e_table->sorter = e_table_sorter_new(etm, e_table->full_header, e_table->sort_info);
gtk_object_set (GTK_OBJECT (e_table->selection),
"model", etm,
"sorter", e_table->sorter,
NULL);
gtk_signal_connect(GTK_OBJECT(e_table->selection), "selection_changed",
GTK_SIGNAL_FUNC(et_selection_model_selection_change), e_table);
if (!specification->no_headers) {
e_table_setup_header (e_table);
}
e_table_setup_table (e_table, e_table->full_header, e_table->header, etm);
e_table_fill_table (e_table, etm);
gtk_layout_get_vadjustment (GTK_LAYOUT (e_table->table_canvas))->step_increment = 20;
gtk_adjustment_changed(gtk_layout_get_vadjustment (GTK_LAYOUT (e_table->table_canvas)));
if (!specification->no_headers) {
/*
* The header
*/
gtk_table_attach (GTK_TABLE (e_table), GTK_WIDGET (e_table->header_canvas),
0, 1, 0 + row, 1 + row,
GTK_FILL | GTK_EXPAND,
GTK_FILL, 0, 0);
row ++;
}
gtk_table_attach (GTK_TABLE (e_table), GTK_WIDGET (e_table->table_canvas),
0, 1, 0 + row, 1 + row,
GTK_FILL | GTK_EXPAND,
GTK_FILL | GTK_EXPAND,
0, 0);
gtk_widget_pop_colormap ();
gtk_widget_pop_visual ();
gtk_object_unref(GTK_OBJECT(ete));
return e_table;
}
ETable *
e_table_construct (ETable *e_table, ETableModel *etm, ETableExtras *ete,
const char *spec_str, const char *state_str)
{
ETableSpecification *specification;
ETableState *state;
g_return_val_if_fail(e_table != NULL, NULL);
g_return_val_if_fail(E_IS_TABLE(e_table), NULL);
g_return_val_if_fail(etm != NULL, NULL);
g_return_val_if_fail(E_IS_TABLE_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);
specification = e_table_specification_new();
e_table_specification_load_from_string(specification, spec_str);
if (state_str) {
state = e_table_state_new();
e_table_state_load_from_string(state, state_str);
if (state->col_count <= 0) {
gtk_object_unref(GTK_OBJECT(state));
state = specification->state;
gtk_object_ref(GTK_OBJECT(state));
}
} else {
state = specification->state;
gtk_object_ref(GTK_OBJECT(state));
}
e_table = et_real_construct (e_table, etm, ete, specification, state);
e_table->spec = specification;
gtk_object_unref(GTK_OBJECT(state));
return e_table;
}
ETable *
e_table_construct_from_spec_file (ETable *e_table, ETableModel *etm, ETableExtras *ete,
const char *spec_fn, const char *state_fn)
{
ETableSpecification *specification;
ETableState *state;
g_return_val_if_fail(e_table != NULL, NULL);
g_return_val_if_fail(E_IS_TABLE(e_table), NULL);
g_return_val_if_fail(etm != NULL, NULL);
g_return_val_if_fail(E_IS_TABLE_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);
specification = e_table_specification_new();
if (!e_table_specification_load_from_file(specification, spec_fn)) {
gtk_object_unref(GTK_OBJECT(specification));
return NULL;
}
if (state_fn) {
state = e_table_state_new();
if (!e_table_state_load_from_file(state, state_fn)) {
gtk_object_unref(GTK_OBJECT(state));
state = specification->state;
gtk_object_ref(GTK_OBJECT(state));
}
if (state->col_count <= 0) {
gtk_object_unref(GTK_OBJECT(state));
state = specification->state;
gtk_object_ref(GTK_OBJECT(state));
}
} else {
state = specification->state;
gtk_object_ref(GTK_OBJECT(state));
}
e_table = et_real_construct (e_table, etm, ete, specification, state);
e_table->spec = specification;
gtk_object_unref(GTK_OBJECT(state));
return e_table;
}
GtkWidget *
e_table_new (ETableModel *etm, ETableExtras *ete, const char *spec, const char *state)
{
ETable *e_table;
g_return_val_if_fail(etm != NULL, NULL);
g_return_val_if_fail(E_IS_TABLE_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_table = gtk_type_new (e_table_get_type ());
e_table = e_table_construct (e_table, etm, ete, spec, state);
return GTK_WIDGET (e_table);
}
GtkWidget *
e_table_new_from_spec_file (ETableModel *etm, ETableExtras *ete, const char *spec_fn, const char *state_fn)
{
ETable *e_table;
g_return_val_if_fail(etm != NULL, NULL);
g_return_val_if_fail(E_IS_TABLE_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_table = gtk_type_new (e_table_get_type ());
e_table = e_table_construct_from_spec_file (e_table, etm, ete, spec_fn, state_fn);
return GTK_WIDGET (e_table);
}
#if 0
static xmlNode *
et_build_column_spec (ETable *e_table)
{
xmlNode *columns_shown;
gint i;
gint col_count;
columns_shown = xmlNewNode (NULL, "columns-shown");
col_count = e_table_header_count (e_table->header);
for (i = 0; i < col_count; i++){
gchar *text = g_strdup_printf ("%d", e_table_header_index(e_table->header, i));
xmlNewChild (columns_shown, NULL, "column", text);
g_free (text);
}
return columns_shown;
}
static xmlNode *
et_build_grouping_spec (ETable *e_table)
{
xmlNode *node;
xmlNode *grouping;
int i;
const int sort_count = e_table_sort_info_sorting_get_count (e_table->sort_info);
const int group_count = e_table_sort_info_grouping_get_count (e_table->sort_info);
grouping = xmlNewNode (NULL, "grouping");
node = grouping;
for (i = 0; i < group_count; i++) {
ETableSortColumn column = e_table_sort_info_grouping_get_nth(e_table->sort_info, i);
xmlNode *new_node = xmlNewChild(node, NULL, "group", NULL);
e_xml_set_integer_prop_by_name (new_node, "column", column.column);
e_xml_set_integer_prop_by_name (new_node, "ascending", column.ascending);
node = new_node;
}
for (i = 0; i < sort_count; i++) {
ETableSortColumn column = e_table_sort_info_sorting_get_nth(e_table->sort_info, i);
xmlNode *new_node = xmlNewChild(node, NULL, "leaf", NULL);
e_xml_set_integer_prop_by_name (new_node, "column", column.column);
e_xml_set_integer_prop_by_name (new_node, "ascending", column.ascending);
node = new_node;
}
return grouping;
}
static xmlDoc *
et_build_tree (ETable *e_table)
{
xmlDoc *doc;
xmlNode *root;
doc = xmlNewDoc ("1.0");
if (doc == NULL)
return NULL;
root = xmlNewDocNode (doc, NULL, "ETableSpecification", NULL);
xmlDocSetRootElement (doc, root);
xmlAddChild (root, et_build_column_spec (e_table));
xmlAddChild (root, et_build_grouping_spec (e_table));
return doc;
}
gchar *
e_table_get_specification (ETable *e_table)
{
xmlDoc *doc;
xmlChar *buffer;
gint size;
g_return_val_if_fail(e_table != NULL, NULL);
g_return_val_if_fail(E_IS_TABLE(e_table), NULL);
doc = et_build_tree (e_table);
xmlDocDumpMemory (doc, &buffer, &size);
xmlFreeDoc (doc);
return buffer;
}
int
e_table_set_specification (ETable *e_table, const char *spec)
{
xmlDoc *xmlSpec;
int ret;
g_return_val_if_fail(e_table != NULL, -1);
g_return_val_if_fail(E_IS_TABLE(e_table), -1);
g_return_val_if_fail(spec != NULL, -1);
/* doesn't work yet, sigh */
xmlSpec = xmlParseMemory ((char *)spec, strlen(spec));
ret = et_real_set_specification(e_table, xmlSpec);
xmlFreeDoc (xmlSpec);
return ret;
}
void
e_table_save_specification (ETable *e_table, gchar *filename)
{
xmlDoc *doc = et_build_tree (e_table);
g_return_if_fail(e_table != NULL);
g_return_if_fail(E_IS_TABLE(e_table));
g_return_if_fail(filename != NULL);
xmlSaveFile (filename, doc);
xmlFreeDoc (doc);
}
int
e_table_load_specification (ETable *e_table, gchar *filename)
{
xmlDoc *xmlSpec;
int ret;
g_return_val_if_fail(e_table != NULL, -1);
g_return_val_if_fail(E_IS_TABLE(e_table), -1);
g_return_val_if_fail(filename != NULL, -1);
/* doesn't work yet, yay */
xmlSpec = xmlParseFile (filename);
ret = et_real_set_specification(e_table, xmlSpec);
xmlFreeDoc (xmlSpec);
return ret;
}
#endif
void
e_table_set_cursor_row (ETable *e_table, int row)
{
g_return_if_fail(e_table != NULL);
g_return_if_fail(E_IS_TABLE(e_table));
g_return_if_fail(row >= 0);
gtk_object_set(GTK_OBJECT(e_table->selection),
"cursor_row", row,
NULL);
}
int
e_table_get_cursor_row (ETable *e_table)
{
int row;
g_return_val_if_fail(e_table != NULL, -1);
g_return_val_if_fail(E_IS_TABLE(e_table), -1);
gtk_object_get(GTK_OBJECT(e_table->selection),
"cursor_row", &row,
NULL);
return row;
}
void
e_table_selected_row_foreach (ETable *e_table,
EForeachFunc callback,
gpointer closure)
{
g_return_if_fail(e_table != NULL);
g_return_if_fail(E_IS_TABLE(e_table));
e_selection_model_foreach(E_SELECTION_MODEL (e_table->selection),
callback,
closure);
}
gint
e_table_selected_count (ETable *e_table)
{
g_return_val_if_fail(e_table != NULL, -1);
g_return_val_if_fail(E_IS_TABLE(e_table), -1);
return e_selection_model_selected_count(E_SELECTION_MODEL (e_table->selection));
}
void
e_table_select_all (ETable *table)
{
g_return_if_fail (table != NULL);
g_return_if_fail (E_IS_TABLE (table));
e_selection_model_select_all (E_SELECTION_MODEL (table->selection));
}
void
e_table_invert_selection (ETable *table)
{
g_return_if_fail (table != NULL);
g_return_if_fail (E_IS_TABLE (table));
e_selection_model_invert_selection (E_SELECTION_MODEL (table->selection));
}
EPrintable *
e_table_get_printable (ETable *e_table)
{
g_return_val_if_fail(e_table != NULL, NULL);
g_return_val_if_fail(E_IS_TABLE(e_table), NULL);
return e_table_group_get_printable(e_table->group);
}
static void
et_get_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
ETable *etable = E_TABLE (o);
switch (arg_id){
case ARG_MODEL:
GTK_VALUE_OBJECT (*arg) = (GtkObject *) etable->model;
break;
default:
break;
}
}
typedef struct {
char *arg;
gboolean setting;
} bool_closure;
static void
et_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
ETable *etable = E_TABLE (o);
switch (arg_id){
case ARG_LENGTH_THRESHOLD:
etable->length_threshold = GTK_VALUE_INT (*arg);
if (etable->group) {
gnome_canvas_item_set (GNOME_CANVAS_ITEM(etable->group),
"length_threshold", GTK_VALUE_INT (*arg),
NULL);
}
break;
}
}
static void
set_scroll_adjustments (ETable *table,
GtkAdjustment *hadjustment,
GtkAdjustment *vadjustment)
{
if (vadjustment != NULL) {
vadjustment->step_increment = 20;
gtk_adjustment_changed(vadjustment);
}
gtk_layout_set_hadjustment (GTK_LAYOUT(table->table_canvas),
hadjustment);
gtk_layout_set_vadjustment (GTK_LAYOUT(table->table_canvas),
vadjustment);
if (table->header_canvas != NULL)
gtk_layout_set_hadjustment (GTK_LAYOUT(table->header_canvas),
hadjustment);
}
gint
e_table_get_next_row (ETable *e_table,
gint model_row)
{
g_return_val_if_fail(e_table != NULL, -1);
g_return_val_if_fail(E_IS_TABLE(e_table), -1);
if (e_table->sorter) {
int i;
i = e_sorter_model_to_sorted(E_SORTER (e_table->sorter), model_row);
i++;
if (i < e_table_model_row_count(e_table->model)) {
return e_sorter_sorted_to_model(E_SORTER (e_table->sorter), i);
} else
return -1;
} else
if (model_row < e_table_model_row_count(e_table->model) - 1)
return model_row + 1;
else
return -1;
}
gint
e_table_get_prev_row (ETable *e_table,
gint model_row)
{
g_return_val_if_fail(e_table != NULL, -1);
g_return_val_if_fail(E_IS_TABLE(e_table), -1);
if (e_table->sorter) {
int i;
i = e_sorter_model_to_sorted(E_SORTER (e_table->sorter), model_row);
i--;
if (i >= 0)
return e_sorter_sorted_to_model(E_SORTER (e_table->sorter), i);
else
return -1;
} else
return model_row - 1;
}
gint
e_table_model_to_view_row (ETable *e_table,
gint model_row)
{
g_return_val_if_fail(e_table != NULL, -1);
g_return_val_if_fail(E_IS_TABLE(e_table), -1);
if (e_table->sorter)
return e_sorter_model_to_sorted(E_SORTER (e_table->sorter), model_row);
else
return model_row;
}
gint
e_table_view_to_model_row (ETable *e_table,
gint view_row)
{
g_return_val_if_fail(e_table != NULL, -1);
g_return_val_if_fail(E_IS_TABLE(e_table), -1);
if (e_table->sorter)
return e_sorter_sorted_to_model (E_SORTER (e_table->sorter), view_row);
else
return view_row;
}
/**
* e_table_get_cell_at:
* @table: An ETable 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_table_get_cell_at (ETable *table,
int x, int y,
int *row_return, int *col_return)
{
g_return_if_fail (table != NULL);
g_return_if_fail (E_IS_TABLE (table));
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. */
x += GTK_LAYOUT(table->table_canvas)->hadjustment->value;
y += GTK_LAYOUT(table->table_canvas)->vadjustment->value;
e_table_group_compute_location(table->group, &x, &y, row_return, col_return);
}
/**
* e_table_get_cell_geometry:
* @table: The table.
* @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_table_get_cell_geometry (ETable *table,
int row, int col,
int *x_return, int *y_return,
int *width_return, int *height_return)
{
g_return_if_fail (table != NULL);
g_return_if_fail (E_IS_TABLE (table));
/* FIXME it would be nice if it could handle a NULL row_return or
* col_return gracefully. */
e_table_group_get_cell_geometry(table->group, &row, &col, x_return, y_return, width_return, height_return);
if (x_return)
(*x_return) -= GTK_LAYOUT(table->table_canvas)->hadjustment->value;
if (y_return) {
(*y_return) -= GTK_LAYOUT(table->table_canvas)->vadjustment->value;
(*y_return) += GTK_WIDGET(table->header_canvas)->allocation.height;
}
}
struct _ETableDragSourceSite
{
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 */
gboolean dropped : 1; /* Set after we receive a drop */
guint32 proxy_drop_time; /* Timestamp for proxied drop */
gboolean 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_table_drag_get_data (ETable *table,
int row,
int col,
GdkDragContext *context,
GdkAtom target,
guint32 time)
{
g_return_if_fail(table != NULL);
g_return_if_fail(E_IS_TABLE(table));
table->drag_get_data_row = row;
table->drag_get_data_col = col;
gtk_drag_get_data(GTK_WIDGET(table),
context,
target,
time);
}
/**
* e_table_drag_highlight:
* @table:
* @row:
* @col:
*
* Set col to -1 to highlight the entire row.
*/
void
e_table_drag_highlight (ETable *table,
int row,
int col)
{
g_return_if_fail(table != NULL);
g_return_if_fail(E_IS_TABLE(table));
}
void
e_table_drag_unhighlight (ETable *table)
{
g_return_if_fail(table != NULL);
g_return_if_fail(E_IS_TABLE(table));
}
void e_table_drag_dest_set (ETable *table,
GtkDestDefaults flags,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions)
{
g_return_if_fail(table != NULL);
g_return_if_fail(E_IS_TABLE(table));
gtk_drag_dest_set(GTK_WIDGET(table),
flags,
targets,
n_targets,
actions);
}
void e_table_drag_dest_set_proxy (ETable *table,
GdkWindow *proxy_window,
GdkDragProtocol protocol,
gboolean use_coordinates)
{
g_return_if_fail(table != NULL);
g_return_if_fail(E_IS_TABLE(table));
gtk_drag_dest_set_proxy(GTK_WIDGET(table),
proxy_window,
protocol,
use_coordinates);
}
/*
* There probably should be functions for setting the targets
* as a GtkTargetList
*/
void
e_table_drag_dest_unset (GtkWidget *widget)
{
g_return_if_fail(widget != NULL);
g_return_if_fail(E_IS_TABLE(widget));
gtk_drag_dest_unset(widget);
}
/* Source side */
void
e_table_drag_source_set (ETable *table,
GdkModifierType start_button_mask,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions)
{
ETableDragSourceSite *site;
GtkWidget *canvas;
g_return_if_fail(table != NULL);
g_return_if_fail(E_IS_TABLE(table));
canvas = GTK_WIDGET(table->table_canvas);
site = table->site;
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 (ETableDragSourceSite, 1);
table->drag_source_button_press_event_id =
gtk_signal_connect (GTK_OBJECT (canvas), "button_press_event",
GTK_SIGNAL_FUNC (e_table_drag_source_event_cb),
table);
table->drag_source_motion_notify_event_id =
gtk_signal_connect (GTK_OBJECT (canvas), "motion_notify_event",
GTK_SIGNAL_FUNC (e_table_drag_source_event_cb),
table);
table->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_table_drag_source_unset (ETable *table)
{
ETableDragSourceSite *site;
g_return_if_fail (table != NULL);
g_return_if_fail (E_IS_TABLE(table));
site = table->site;
if (site) {
gtk_signal_disconnect (
GTK_OBJECT (table->table_canvas),
table->drag_source_button_press_event_id);
gtk_signal_disconnect (
GTK_OBJECT (table->table_canvas),
table->drag_source_motion_notify_event_id);
g_free (site);
table->site = NULL;
}
}
/* There probably should be functions for setting the targets
* as a GtkTargetList
*/
GdkDragContext *
e_table_drag_begin (ETable *table,
int row,
int col,
GtkTargetList *targets,
GdkDragAction actions,
gint button,
GdkEvent *event)
{
g_return_val_if_fail (table != NULL, NULL);
g_return_val_if_fail (E_IS_TABLE(table), NULL);
table->drag_row = row;
table->drag_col = col;
return gtk_drag_begin(GTK_WIDGET(table),
targets,
actions,
button,
event);
}
static void
et_drag_begin (GtkWidget *widget,
GdkDragContext *context,
ETable *et)
{
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_BEGIN],
et->drag_row,
et->drag_col,
context);
}
static void
et_drag_end (GtkWidget *widget,
GdkDragContext *context,
ETable *et)
{
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_END],
et->drag_row,
et->drag_col,
context);
}
static void
et_drag_data_get(GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
ETable *et)
{
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_DATA_GET],
et->drag_row,
et->drag_col,
context,
selection_data,
info,
time);
}
static void
et_drag_data_delete(GtkWidget *widget,
GdkDragContext *context,
ETable *et)
{
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_DATA_DELETE],
et->drag_row,
et->drag_col,
context);
}
static void
et_drag_leave(GtkWidget *widget,
GdkDragContext *context,
guint time,
ETable *et)
{
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_LEAVE],
et->drop_row,
et->drop_col,
context,
time);
et->drop_row = -1;
et->drop_col = -1;
}
static gboolean
et_drag_motion(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETable *et)
{
gboolean ret_val;
int row, col;
e_table_get_cell_at (et, x, y, &row, &col);
if (row != et->drop_row && col != et->drop_row) {
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_LEAVE],
et->drop_row,
et->drop_col,
context,
time);
}
et->drop_row = row;
et->drop_col = col;
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_MOTION],
et->drop_row,
et->drop_col,
context,
x,
y,
time,
&ret_val);
return ret_val;
}
static gboolean
et_drag_drop(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETable *et)
{
gboolean ret_val;
int row, col;
e_table_get_cell_at (et, x, y, &row, &col);
if (row != et->drop_row && col != et->drop_row) {
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_LEAVE],
et->drop_row,
et->drop_col,
context,
time);
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_MOTION],
row,
col,
context,
x,
y,
time,
&ret_val);
}
et->drop_row = row;
et->drop_col = col;
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_DROP],
et->drop_row,
et->drop_col,
context,
x,
y,
time,
&ret_val);
et->drop_row = -1;
et->drop_col = -1;
return ret_val;
}
static void
et_drag_data_received(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time,
ETable *et)
{
int row, col;
e_table_get_cell_at (et, x, y, &row, &col);
gtk_signal_emit (GTK_OBJECT (et),
et_signals [TABLE_DRAG_DATA_RECEIVED],
row,
col,
context,
x,
y,
selection_data,
info,
time);
}
static gint
e_table_drag_source_event_cb (GtkWidget *widget,
GdkEvent *event,
ETable *table)
{
ETableDragSourceSite *site;
site = table->site;
switch (event->type) {
case GDK_BUTTON_PRESS:
if ((GDK_BUTTON1_MASK << (event->button.button - 1)) & site->start_button_mask) {
int row, col;
e_table_get_cell_at (table, event->button.x, event->button.y, &row, &col);
if (row >= 0 && col >= 0) {
site->state |= (GDK_BUTTON1_MASK << (event->button.button - 1));
site->x = event->button.x;
site->y = event->button.y;
site->row = row;
site->col = col;
}
}
break;
case GDK_BUTTON_RELEASE:
if ((GDK_BUTTON1_MASK << (event->button.button - 1)) & site->start_button_mask) {
site->state &= ~(GDK_BUTTON1_MASK << (event->button.button - 1));
}
break;
case GDK_MOTION_NOTIFY:
if (site->state & event->motion.state & site->start_button_mask) {
/* FIXME: This is really broken and can leave us
* with a stuck grab
*/
int i;
for (i=1; i<6; i++) {
if (site->state & event->motion.state &
GDK_BUTTON1_MASK << (i - 1))
break;
}
if (MAX (abs (site->x - event->motion.x),
abs (site->y - event->motion.y)) > 3) {
GtkDragSourceInfo *info;
GdkDragContext *context;
site->state = 0;
context = e_table_drag_begin (table, site->row, site->col,
site->target_list,
site->actions,
i, event);
info = g_dataset_get_data (context, "gtk-info");
if (!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;
}
}
break;
default: /* hit for 2/3BUTTON_PRESS */
break;
}
return FALSE;
}
static void
e_table_class_init (ETableClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
object_class = (GtkObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
container_class = (GtkContainerClass *) class;
e_table_parent_class = gtk_type_class (PARENT_TYPE);
object_class->destroy = et_destroy;
object_class->set_arg = et_set_arg;
object_class->get_arg = et_get_arg;
widget_class->grab_focus = et_grab_focus;
container_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->table_drag_begin = NULL;
class->table_drag_end = NULL;
class->table_drag_data_get = NULL;
class->table_drag_data_delete = NULL;
class->table_drag_leave = NULL;
class->table_drag_motion = NULL;
class->table_drag_drop = NULL;
class->table_drag_data_received = NULL;
et_signals [CURSOR_CHANGE] =
gtk_signal_new ("cursor_change",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, cursor_change),
gtk_marshal_NONE__INT,
GTK_TYPE_NONE, 1, GTK_TYPE_INT);
et_signals [CURSOR_ACTIVATED] =
gtk_signal_new ("cursor_activated",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, cursor_activated),
gtk_marshal_NONE__INT,
GTK_TYPE_NONE, 1, GTK_TYPE_INT);
et_signals [SELECTION_CHANGE] =
gtk_signal_new ("selection_change",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, selection_change),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
et_signals [DOUBLE_CLICK] =
gtk_signal_new ("double_click",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, double_click),
gtk_marshal_NONE__INT_INT_POINTER,
GTK_TYPE_NONE, 3, GTK_TYPE_INT, GTK_TYPE_INT, GTK_TYPE_GDK_EVENT);
et_signals [RIGHT_CLICK] =
gtk_signal_new ("right_click",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, right_click),
e_marshal_INT__INT_INT_POINTER,
GTK_TYPE_INT, 3, GTK_TYPE_INT, GTK_TYPE_INT, GTK_TYPE_GDK_EVENT);
et_signals [CLICK] =
gtk_signal_new ("click",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, click),
e_marshal_INT__INT_INT_POINTER,
GTK_TYPE_INT, 3, GTK_TYPE_INT, GTK_TYPE_INT, GTK_TYPE_GDK_EVENT);
et_signals [KEY_PRESS] =
gtk_signal_new ("key_press",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, key_press),
e_marshal_INT__INT_INT_POINTER,
GTK_TYPE_INT, 3, GTK_TYPE_INT, GTK_TYPE_INT, GTK_TYPE_GDK_EVENT);
et_signals[TABLE_DRAG_BEGIN] =
gtk_signal_new ("table_drag_begin",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, table_drag_begin),
gtk_marshal_NONE__INT_INT_POINTER,
GTK_TYPE_NONE, 3,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_GDK_DRAG_CONTEXT);
et_signals[TABLE_DRAG_END] =
gtk_signal_new ("table_drag_end",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, table_drag_end),
gtk_marshal_NONE__INT_INT_POINTER,
GTK_TYPE_NONE, 3,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_GDK_DRAG_CONTEXT);
et_signals[TABLE_DRAG_DATA_GET] =
gtk_signal_new ("table_drag_data_get",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, table_drag_data_get),
e_marshal_NONE__INT_INT_POINTER_POINTER_UINT_UINT,
GTK_TYPE_NONE, 6,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_GDK_DRAG_CONTEXT,
GTK_TYPE_SELECTION_DATA,
GTK_TYPE_UINT,
GTK_TYPE_UINT);
et_signals[TABLE_DRAG_DATA_DELETE] =
gtk_signal_new ("table_drag_data_delete",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, table_drag_data_delete),
gtk_marshal_NONE__INT_INT_POINTER,
GTK_TYPE_NONE, 3,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_GDK_DRAG_CONTEXT);
et_signals[TABLE_DRAG_LEAVE] =
gtk_signal_new ("table_drag_leave",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, table_drag_leave),
e_marshal_NONE__INT_INT_POINTER_UINT,
GTK_TYPE_NONE, 4,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_GDK_DRAG_CONTEXT,
GTK_TYPE_UINT);
et_signals[TABLE_DRAG_MOTION] =
gtk_signal_new ("table_drag_motion",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, table_drag_motion),
e_marshal_BOOL__INT_INT_POINTER_INT_INT_UINT,
GTK_TYPE_BOOL, 6,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_GDK_DRAG_CONTEXT,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_UINT);
et_signals[TABLE_DRAG_DROP] =
gtk_signal_new ("table_drag_drop",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, table_drag_drop),
e_marshal_BOOL__INT_INT_POINTER_INT_INT_UINT,
GTK_TYPE_BOOL, 6,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_GDK_DRAG_CONTEXT,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_UINT);
et_signals[TABLE_DRAG_DATA_RECEIVED] =
gtk_signal_new ("table_drag_data_received",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, table_drag_data_received),
e_marshal_NONE__INT_INT_POINTER_INT_INT_POINTER_UINT_UINT,
GTK_TYPE_NONE, 8,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_GDK_DRAG_CONTEXT,
GTK_TYPE_INT,
GTK_TYPE_INT,
GTK_TYPE_SELECTION_DATA,
GTK_TYPE_UINT,
GTK_TYPE_UINT);
gtk_object_class_add_signals (object_class, et_signals, LAST_SIGNAL);
class->set_scroll_adjustments = set_scroll_adjustments;
widget_class->set_scroll_adjustments_signal =
gtk_signal_new ("set_scroll_adjustments",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableClass, set_scroll_adjustments),
gtk_marshal_NONE__POINTER_POINTER,
GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
gtk_object_add_arg_type ("ETable::length_threshold", GTK_TYPE_INT,
GTK_ARG_WRITABLE, ARG_LENGTH_THRESHOLD);
gtk_object_add_arg_type ("ETable::model", E_TABLE_MODEL_TYPE,
GTK_ARG_READABLE, ARG_MODEL);
}
E_MAKE_TYPE(e_table, "ETable", ETable, e_table_class_init, e_table_init, PARENT_TYPE);