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evolution/e-util/e-table-click-to-add.c
Matthew Barnes d09d8de870 Consolidate base utility libraries into libeutil. 
Evolution consists of entirely too many small utility libraries, which
increases linking and loading time, places a burden on higher layers of
the application (e.g. modules) which has to remember to link to all the
small in-tree utility libraries, and makes it difficult to generate API
documentation for these utility libraries in one Gtk-Doc module.

Merge the following utility libraries under the umbrella of libeutil,
and enforce a single-include policy on libeutil so we can reorganize
the files as desired without disrupting its pseudo-public API.

   libemail-utils/libemail-utils.la
   libevolution-utils/libevolution-utils.la
   filter/libfilter.la
   widgets/e-timezone-dialog/libetimezonedialog.la
   widgets/menus/libmenus.la
   widgets/misc/libemiscwidgets.la
   widgets/table/libetable.la
   widgets/text/libetext.la

This also merges libedataserverui from the Evolution-Data-Server module,
since Evolution is its only consumer nowadays, and I'd like to make some
improvements to those APIs without concern for backward-compatibility.

And finally, start a Gtk-Doc module for libeutil.  It's going to be a
project just getting all the symbols _listed_ much less _documented_.
But the skeletal structure is in place and I'm off to a good start.
2012-12-12 14:33:43 -05:00

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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Authors:
* Chris Lahey <clahey@ximian.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-table-click-to-add.h"
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <gdk/gdkkeysyms.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <libgnomecanvas/libgnomecanvas.h>
#include "e-canvas-utils.h"
#include "e-canvas.h"
#include "e-marshal.h"
#include "e-table-defines.h"
#include "e-table-header.h"
#include "e-table-one.h"
#include "e-text.h"
#include "gal-a11y-e-table-click-to-add.h"
enum {
CURSOR_CHANGE,
STYLE_SET,
LAST_SIGNAL
};
static guint etcta_signals[LAST_SIGNAL] = { 0 };
/* workaround for avoiding APi breakage */
#define etcta_get_type e_table_click_to_add_get_type
G_DEFINE_TYPE (ETableClickToAdd, etcta, GNOME_TYPE_CANVAS_GROUP)
enum {
PROP_0,
PROP_HEADER,
PROP_MODEL,
PROP_MESSAGE,
PROP_WIDTH,
PROP_HEIGHT
};
static void
etcta_cursor_change (GObject *object,
gint row,
gint col,
ETableClickToAdd *etcta)
{
g_signal_emit (
etcta,
etcta_signals[CURSOR_CHANGE], 0,
row, col);
}
static void
etcta_style_set (ETableClickToAdd *etcta,
GtkStyle *previous_style)
{
GtkWidget *widget;
GtkStyle *style;
widget = GTK_WIDGET (GNOME_CANVAS_ITEM (etcta)->canvas);
style = gtk_widget_get_style (widget);
if (etcta->rect)
gnome_canvas_item_set (
etcta->rect,
"outline_color_gdk", &style->fg[GTK_STATE_NORMAL],
"fill_color_gdk", &style->bg[GTK_STATE_NORMAL],
NULL);
if (etcta->text)
gnome_canvas_item_set (
etcta->text,
"fill_color_gdk", &style->text[GTK_STATE_NORMAL],
NULL);
}
static void
etcta_add_table_header (ETableClickToAdd *etcta,
ETableHeader *header)
{
etcta->eth = header;
if (etcta->eth)
g_object_ref (etcta->eth);
if (etcta->row)
gnome_canvas_item_set (
GNOME_CANVAS_ITEM (etcta->row),
"ETableHeader", header,
NULL);
}
static void
etcta_drop_table_header (ETableClickToAdd *etcta)
{
if (!etcta->eth)
return;
g_object_unref (etcta->eth);
etcta->eth = NULL;
}
static void
etcta_add_one (ETableClickToAdd *etcta,
ETableModel *one)
{
etcta->one = one;
if (etcta->one)
g_object_ref (etcta->one);
if (etcta->row)
gnome_canvas_item_set (
GNOME_CANVAS_ITEM (etcta->row),
"ETableModel", one,
NULL);
g_object_set (
etcta->selection,
"model", one,
NULL);
}
static void
etcta_drop_one (ETableClickToAdd *etcta)
{
if (!etcta->one)
return;
g_object_unref (etcta->one);
etcta->one = NULL;
g_object_set (
etcta->selection,
"model", NULL,
NULL);
}
static void
etcta_add_model (ETableClickToAdd *etcta,
ETableModel *model)
{
etcta->model = model;
if (etcta->model)
g_object_ref (etcta->model);
}
static void
etcta_drop_model (ETableClickToAdd *etcta)
{
etcta_drop_one (etcta);
if (!etcta->model)
return;
g_object_unref (etcta->model);
etcta->model = NULL;
}
static void
etcta_add_message (ETableClickToAdd *etcta,
const gchar *message)
{
etcta->message = g_strdup (message);
}
static void
etcta_drop_message (ETableClickToAdd *etcta)
{
g_free (etcta->message);
etcta->message = NULL;
}
static void
etcta_dispose (GObject *object)
{
ETableClickToAdd *etcta = E_TABLE_CLICK_TO_ADD (object);
etcta_drop_table_header (etcta);
etcta_drop_model (etcta);
etcta_drop_message (etcta);
if (etcta->selection)
g_object_unref (etcta->selection);
etcta->selection = NULL;
/* Chain up to parent's dispose() method. */
G_OBJECT_CLASS (etcta_parent_class)->dispose (object);
}
static void
etcta_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GnomeCanvasItem *item;
ETableClickToAdd *etcta;
item = GNOME_CANVAS_ITEM (object);
etcta = E_TABLE_CLICK_TO_ADD (object);
switch (property_id) {
case PROP_HEADER:
etcta_drop_table_header (etcta);
etcta_add_table_header (etcta, E_TABLE_HEADER (g_value_get_object (value)));
break;
case PROP_MODEL:
etcta_drop_model (etcta);
etcta_add_model (etcta, E_TABLE_MODEL (g_value_get_object (value)));
break;
case PROP_MESSAGE:
etcta_drop_message (etcta);
etcta_add_message (etcta, g_value_get_string (value));
break;
case PROP_WIDTH:
etcta->width = g_value_get_double (value);
if (etcta->row)
gnome_canvas_item_set (
etcta->row,
"minimum_width", etcta->width,
NULL);
if (etcta->text)
gnome_canvas_item_set (
etcta->text,
"width", (etcta->width < 4 ? 4 : etcta->width) - 4,
NULL);
if (etcta->rect)
gnome_canvas_item_set (
etcta->rect,
"x2", etcta->width - 1,
NULL);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
return;
}
gnome_canvas_item_request_update (item);
}
static void
create_rect_and_text (ETableClickToAdd *etcta)
{
GtkWidget *widget;
GtkStyle *style;
widget = GTK_WIDGET (GNOME_CANVAS_ITEM (etcta)->canvas);
style = gtk_widget_get_style (widget);
if (!etcta->rect)
etcta->rect = gnome_canvas_item_new (
GNOME_CANVAS_GROUP (etcta),
gnome_canvas_rect_get_type (),
"x1", (gdouble) 0,
"y1", (gdouble) 0,
"x2", (gdouble) etcta->width - 1,
"y2", (gdouble) etcta->height - 1,
"outline_color_gdk", &style->fg[GTK_STATE_NORMAL],
"fill_color_gdk", &style->bg[GTK_STATE_NORMAL],
NULL);
if (!etcta->text)
etcta->text = gnome_canvas_item_new (
GNOME_CANVAS_GROUP (etcta),
e_text_get_type (),
"text", etcta->message ? etcta->message : "",
"width", etcta->width - 4,
"fill_color_gdk", &style->text[GTK_STATE_NORMAL],
NULL);
}
static void
etcta_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
ETableClickToAdd *etcta;
etcta = E_TABLE_CLICK_TO_ADD (object);
switch (property_id) {
case PROP_HEADER:
g_value_set_object (value, etcta->eth);
break;
case PROP_MODEL:
g_value_set_object (value, etcta->model);
break;
case PROP_MESSAGE:
g_value_set_string (value, etcta->message);
break;
case PROP_WIDTH:
g_value_set_double (value, etcta->width);
break;
case PROP_HEIGHT:
g_value_set_double (value, etcta->height);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
etcta_realize (GnomeCanvasItem *item)
{
ETableClickToAdd *etcta = E_TABLE_CLICK_TO_ADD (item);
create_rect_and_text (etcta);
e_canvas_item_move_absolute (etcta->text, 2, 2);
if (GNOME_CANVAS_ITEM_CLASS (etcta_parent_class)->realize)
(*GNOME_CANVAS_ITEM_CLASS (etcta_parent_class)->realize)(item);
e_canvas_item_request_reflow (item);
}
static void
etcta_unrealize (GnomeCanvasItem *item)
{
if (GNOME_CANVAS_ITEM_CLASS (etcta_parent_class)->unrealize)
(*GNOME_CANVAS_ITEM_CLASS (etcta_parent_class)->unrealize)(item);
}
static void finish_editing (ETableClickToAdd *etcta);
static gint
item_key_press (ETableItem *item,
gint row,
gint col,
GdkEvent *event,
ETableClickToAdd *etcta)
{
switch (event->key.keyval) {
case GDK_KEY_Return:
case GDK_KEY_KP_Enter:
case GDK_KEY_ISO_Enter:
case GDK_KEY_3270_Enter:
finish_editing (etcta);
return TRUE;
}
return FALSE;
}
static void
set_initial_selection (ETableClickToAdd *etcta)
{
e_selection_model_do_something (
E_SELECTION_MODEL (etcta->selection),
0, e_table_header_prioritized_column (etcta->eth),
0);
}
static void
finish_editing (ETableClickToAdd *etcta)
{
if (etcta->row) {
ETableModel *one;
e_table_item_leave_edit (E_TABLE_ITEM (etcta->row));
e_table_one_commit (E_TABLE_ONE (etcta->one));
etcta_drop_one (etcta);
g_object_run_dispose (G_OBJECT (etcta->row));
etcta->row = NULL;
one = e_table_one_new (etcta->model);
etcta_add_one (etcta, one);
g_object_unref (one);
e_selection_model_clear (E_SELECTION_MODEL (etcta->selection));
etcta->row = gnome_canvas_item_new (
GNOME_CANVAS_GROUP (etcta),
e_table_item_get_type (),
"ETableHeader", etcta->eth,
"ETableModel", etcta->one,
"minimum_width", etcta->width,
"horizontal_draw_grid", TRUE,
"vertical_draw_grid", TRUE,
"selection_model", etcta->selection,
"cursor_mode", E_CURSOR_SPREADSHEET,
NULL);
g_signal_connect (
etcta->row, "key_press",
G_CALLBACK (item_key_press), etcta);
set_initial_selection (etcta);
}
}
/* Handles the events on the ETableClickToAdd, particularly
* it creates the ETableItem and passes in some events. */
static gint
etcta_event (GnomeCanvasItem *item,
GdkEvent *e)
{
ETableClickToAdd *etcta = E_TABLE_CLICK_TO_ADD (item);
switch (e->type) {
case GDK_FOCUS_CHANGE:
if (!e->focus_change.in)
return TRUE;
case GDK_BUTTON_PRESS:
if (etcta->text) {
g_object_run_dispose (G_OBJECT (etcta->text));
etcta->text = NULL;
}
if (etcta->rect) {
g_object_run_dispose (G_OBJECT (etcta->rect));
etcta->rect = NULL;
}
if (!etcta->row) {
ETableModel *one;
one = e_table_one_new (etcta->model);
etcta_add_one (etcta, one);
g_object_unref (one);
e_selection_model_clear (E_SELECTION_MODEL (etcta->selection));
etcta->row = gnome_canvas_item_new (
GNOME_CANVAS_GROUP (item),
e_table_item_get_type (),
"ETableHeader", etcta->eth,
"ETableModel", etcta->one,
"minimum_width", etcta->width,
"horizontal_draw_grid", TRUE,
"vertical_draw_grid", TRUE,
"selection_model", etcta->selection,
"cursor_mode", E_CURSOR_SPREADSHEET,
NULL);
g_signal_connect (
etcta->row, "key_press",
G_CALLBACK (item_key_press), etcta);
e_canvas_item_grab_focus (GNOME_CANVAS_ITEM (etcta->row), TRUE);
set_initial_selection (etcta);
}
break;
case GDK_KEY_PRESS:
switch (e->key.keyval) {
case GDK_KEY_Tab:
case GDK_KEY_KP_Tab:
case GDK_KEY_ISO_Left_Tab:
finish_editing (etcta);
break;
default:
return FALSE;
case GDK_KEY_Escape:
if (etcta->row) {
e_table_item_leave_edit (E_TABLE_ITEM (etcta->row));
etcta_drop_one (etcta);
g_object_run_dispose (G_OBJECT (etcta->row));
etcta->row = NULL;
create_rect_and_text (etcta);
e_canvas_item_move_absolute (etcta->text, 3, 3);
}
break;
}
break;
default:
return FALSE;
}
return TRUE;
}
static void
etcta_reflow (GnomeCanvasItem *item,
gint flags)
{
ETableClickToAdd *etcta = E_TABLE_CLICK_TO_ADD (item);
gdouble old_height = etcta->height;
if (etcta->text) {
g_object_get (
etcta->text,
"height", &etcta->height,
NULL);
etcta->height += 6;
}
if (etcta->row) {
g_object_get (
etcta->row,
"height", &etcta->height,
NULL);
}
if (etcta->rect) {
g_object_set (
etcta->rect,
"y2", etcta->height - 1,
NULL);
}
if (old_height != etcta->height)
e_canvas_item_request_parent_reflow (item);
}
static void
etcta_class_init (ETableClickToAddClass *class)
{
GnomeCanvasItemClass *item_class = GNOME_CANVAS_ITEM_CLASS (class);
GObjectClass *object_class = G_OBJECT_CLASS (class);
class->cursor_change = NULL;
class->style_set = etcta_style_set;
object_class->dispose = etcta_dispose;
object_class->set_property = etcta_set_property;
object_class->get_property = etcta_get_property;
item_class->realize = etcta_realize;
item_class->unrealize = etcta_unrealize;
item_class->event = etcta_event;
g_object_class_install_property (
object_class,
PROP_HEADER,
g_param_spec_object (
"header",
"Header",
NULL,
E_TYPE_TABLE_HEADER,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_MODEL,
g_param_spec_object (
"model",
"Model",
NULL,
E_TYPE_TABLE_MODEL,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_MESSAGE,
g_param_spec_string (
"message",
"Message",
NULL,
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_WIDTH,
g_param_spec_double (
"width",
"Width",
NULL,
0.0, G_MAXDOUBLE, 0.0,
G_PARAM_READWRITE |
G_PARAM_LAX_VALIDATION));
g_object_class_install_property (
object_class,
PROP_HEIGHT,
g_param_spec_double (
"height",
"Height",
NULL,
0.0, G_MAXDOUBLE, 0.0,
G_PARAM_READABLE |
G_PARAM_LAX_VALIDATION));
etcta_signals[CURSOR_CHANGE] = g_signal_new (
"cursor_change",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETableClickToAddClass, cursor_change),
NULL, NULL,
e_marshal_VOID__INT_INT,
G_TYPE_NONE, 2,
G_TYPE_INT,
G_TYPE_INT);
etcta_signals[STYLE_SET] = g_signal_new (
"style_set",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ETableClickToAddClass, style_set),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
GTK_TYPE_STYLE);
gal_a11y_e_table_click_to_add_init ();
}
static void
etcta_init (ETableClickToAdd *etcta)
{
AtkObject *a11y;
etcta->one = NULL;
etcta->model = NULL;
etcta->eth = NULL;
etcta->message = NULL;
etcta->row = NULL;
etcta->text = NULL;
etcta->rect = NULL;
/* Pick some arbitrary defaults. */
etcta->width = 12;
etcta->height = 6;
etcta->selection = e_table_selection_model_new ();
g_signal_connect (
etcta->selection, "cursor_changed",
G_CALLBACK (etcta_cursor_change), etcta);
e_canvas_item_set_reflow_callback (GNOME_CANVAS_ITEM (etcta), etcta_reflow);
/* create its a11y object at this time if accessibility is enabled*/
if (atk_get_root () != NULL) {
a11y = atk_gobject_accessible_for_object (G_OBJECT (etcta));
atk_object_set_name (a11y, _("click to add"));
}
}
/* The colors in this need to be themefied. */
/**
* e_table_click_to_add_commit:
* @etcta: The %ETableClickToAdd to commit.
*
* This routine commits the current thing being edited and returns to
* just displaying the click to add message.
**/
void
e_table_click_to_add_commit (ETableClickToAdd *etcta)
{
if (etcta->row) {
e_table_one_commit (E_TABLE_ONE (etcta->one));
etcta_drop_one (etcta);
g_object_run_dispose (G_OBJECT (etcta->row));
etcta->row = NULL;
}
create_rect_and_text (etcta);
e_canvas_item_move_absolute (etcta->text, 3, 3);
}
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