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/* Dia -- an diagram creation/manipulation program
* Copyright (C) 1998 Alexander Larsson
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* Parts of this file are derived from the file layers_dialog.c in the Gimp:
*
* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <assert.h>
#include <string.h>
#include <gdk/gdkkeysyms.h>
#undef GTK_DISABLE_DEPRECATED /* GtkListItem, gtk_list_new, ... */
#include <gtk/gtk.h>
#include "intl.h"
#include "layer_dialog.h"
#include "persistence.h"
#include "widgets.h"
#include "interface.h"
#include "dia-application.h" /* dia_diagram_change */
#include "dia-app-icons.h"
/* DiaLayerWidget: */
#define DIA_LAYER_WIDGET(obj) \
G_TYPE_CHECK_INSTANCE_CAST (obj, dia_layer_widget_get_type (), DiaLayerWidget)
#define DIA_LAYER_WIDGET_CLASS(klass) \
G_TYPE_CHECK_CLASS_CAST (klass, dia_layer_widget_get_type (), DiaLayerWidgetClass)
#define IS_DIA_LAYER_WIDGET(obj) \
G_TYPE_CHECK_INSTANCE_TYPE (obj, dia_layer_widget_get_type ())
typedef struct _DiaLayerWidgetClass DiaLayerWidgetClass;
typedef struct _EditLayerDialog EditLayerDialog;
struct _DiaLayerWidget
{
GtkListItem list_item;
Diagram *dia;
Layer *layer;
GtkWidget *visible;
GtkWidget *connectable;
GtkWidget *label;
EditLayerDialog *edit_dialog;
/** If true, the user has set this layers connectivity to on
* while it was not selected.
*/
gboolean connect_on;
/** If true, the user has set this layers connectivity to off
* while it was selected.
*/
gboolean connect_off;
};
struct _EditLayerDialog {
GtkWidget *dialog;
GtkWidget *name_entry;
DiaLayerWidget *layer_widget;
};
struct _DiaLayerWidgetClass
{
GtkListItemClass parent_class;
};
GType dia_layer_widget_get_type(void);
struct LayerDialog {
GtkWidget *dialog;
GtkWidget *diagram_omenu;
GtkWidget *layer_list;
Diagram *diagram;
};
static struct LayerDialog *layer_dialog = NULL;
typedef struct _ButtonData ButtonData;
struct _ButtonData {
gchar *stock_name;
gpointer callback;
char *tooltip;
};
enum LayerChangeType {
TYPE_DELETE_LAYER,
TYPE_ADD_LAYER,
TYPE_RAISE_LAYER,
TYPE_LOWER_LAYER,
};
struct LayerChange {
Change change;
enum LayerChangeType type;
Layer *layer;
int index;
int applied;
};
struct LayerVisibilityChange {
Change change;
GList *original_visibility;
Layer *layer;
gboolean is_exclusive;
int applied;
};
/** If TRUE, we're in the middle of a internal call to
* dia_layer_widget_*_toggled and should not make undo, update diagram etc.
*
* If these calls were not done by simulating button presses, we could avoid
* this hack.
*/
static gboolean internal_call = FALSE;
static Change *
undo_layer(Diagram *dia, Layer *layer, enum LayerChangeType, int index);
static struct LayerVisibilityChange *
undo_layer_visibility(Diagram *dia, Layer *layer, gboolean exclusive);
static void
layer_visibility_change_apply(struct LayerVisibilityChange *change,
Diagram *dia);
static GtkWidget* dia_layer_widget_new(Diagram *dia, Layer *layer);
static void dia_layer_set_layer(DiaLayerWidget *widget, Diagram *dia, Layer *layer);
static void dia_layer_update_from_layer(DiaLayerWidget *widget);
static void layer_dialog_new_callback(GtkWidget *widget, gpointer gdata);
static void layer_dialog_rename_callback(GtkWidget *widget, gpointer gdata);
static void layer_dialog_raise_callback(GtkWidget *widget, gpointer gdata);
static void layer_dialog_lower_callback(GtkWidget *widget, gpointer gdata);
static void layer_dialog_delete_callback(GtkWidget *widget, gpointer gdata);
static void layer_dialog_edit_layer(DiaLayerWidget *layer_widget, Diagram *dia, Layer *layer);
static ButtonData buttons[] = {
{ GTK_STOCK_ADD, layer_dialog_new_callback, N_("New Layer") },
{ GTK_STOCK_EDIT, layer_dialog_rename_callback, N_("Rename Layer") },
{ GTK_STOCK_GO_UP, layer_dialog_raise_callback, N_("Raise Layer") },
{ GTK_STOCK_GO_DOWN, layer_dialog_lower_callback, N_("Lower Layer") },
{ GTK_STOCK_DELETE, layer_dialog_delete_callback, N_("Delete Layer") },
};
enum {
BUTTON_NEW = 0,
BUTTON_RAISE,
BUTTON_LOWER,
BUTTON_DELETE
};
#define BUTTON_EVENT_MASK GDK_EXPOSURE_MASK | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK | \
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
static int num_buttons = sizeof(buttons)/sizeof(ButtonData);
#define NORMAL 0
#define SELECTED 1
#define INSENSITIVE 2
static GtkWidget *
create_button_box(GtkWidget *parent, gboolean show_labels)
{
GtkWidget *button;
GtkWidget *button_box;
int i;
button_box = gtk_hbox_new (TRUE, 1);
for (i=0;i<num_buttons;i++) {
if (show_labels == TRUE)
{
button = gtk_button_new_from_stock(buttons[i].stock_name);
}
else
{
GtkWidget * image;
button = gtk_button_new ();
image = gtk_image_new_from_stock (buttons[i].stock_name,
GTK_ICON_SIZE_BUTTON);
gtk_button_set_image (GTK_BUTTON (button), image);
}
g_signal_connect_swapped (G_OBJECT (button), "clicked",
G_CALLBACK(buttons[i].callback),
G_OBJECT (parent));
gtk_widget_set_tooltip_text (button, gettext(buttons[i].tooltip));
gtk_box_pack_start (GTK_BOX(button_box), button, TRUE, TRUE, 0);
gtk_widget_show (button);
}
return button_box;
}
static gint
layer_list_events (GtkWidget *widget,
GdkEvent *event)
{
GdkEventKey *kevent;
GtkWidget *event_widget;
DiaLayerWidget *layer_widget;
event_widget = gtk_get_event_widget (event);
if (GTK_IS_LIST_ITEM (event_widget)) {
layer_widget = DIA_LAYER_WIDGET(event_widget);
switch (event->type) {
case GDK_2BUTTON_PRESS:
layer_dialog_edit_layer(layer_widget, NULL, NULL);
return TRUE;
case GDK_KEY_PRESS:
kevent = (GdkEventKey *) event;
switch (kevent->keyval) {
case GDK_Up:
/* printf ("up arrow\n"); */
break;
case GDK_Down:
/* printf ("down arrow\n"); */
break;
default:
return FALSE;
}
return TRUE;
default:
break;
}
}
return FALSE;
}
static gboolean
layer_dialog_delete(GtkWidget *widget, gpointer data)
{
gtk_widget_hide(widget);
/* We're caching, so don't destroy */
return TRUE;
}
static void
layer_view_hide_button_clicked (void * not_used)
{
integrated_ui_layer_view_show (FALSE);
}
GtkWidget * create_layer_view_widget (void)
{
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *hide_button;
GtkRcStyle *rcstyle; /* For hide_button */
GtkWidget *image; /* For hide_button */
GtkWidget *list;
GtkWidget *separator;
GtkWidget *scrolled_win;
GtkWidget *button_box;
/* if layer_dialog were renamed to layer_view_data this would make
* more sense.
*/
layer_dialog = g_new (struct LayerDialog, 1);
layer_dialog->diagram = NULL;
layer_dialog->dialog = vbox = gtk_vbox_new (FALSE, 1);
hbox = gtk_hbox_new (FALSE, 1);
label = gtk_label_new (_ ("Layers:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 2);
gtk_widget_show (label);
layer_dialog->diagram_omenu = NULL;
/* Hide Button */
hide_button = gtk_button_new ();
gtk_button_set_relief (GTK_BUTTON (hide_button), GTK_RELIEF_NONE);
gtk_button_set_focus_on_click (GTK_BUTTON (hide_button), FALSE);
/* make it as small as possible */
rcstyle = gtk_rc_style_new ();
rcstyle->xthickness = rcstyle->ythickness = 0;
gtk_widget_modify_style (hide_button, rcstyle);
g_object_unref (rcstyle);
image = gtk_image_new_from_stock (GTK_STOCK_CLOSE,
GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER(hide_button), image);
g_signal_connect (G_OBJECT (hide_button), "clicked",
G_CALLBACK (layer_view_hide_button_clicked), NULL);
gtk_box_pack_start (GTK_BOX (hbox), hide_button, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX(vbox), hbox, FALSE, FALSE, 2);
gtk_widget_show_all (hbox);
button_box = create_button_box(vbox, FALSE);
gtk_box_pack_start (GTK_BOX (vbox), button_box, FALSE, FALSE, 2);
gtk_widget_show (button_box);
separator = gtk_hseparator_new();
gtk_box_pack_start(GTK_BOX(vbox), separator, FALSE, FALSE, 2);
gtk_widget_show (separator);
scrolled_win = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_box_pack_start (GTK_BOX (vbox), scrolled_win, TRUE, TRUE, 2);
layer_dialog->layer_list = list = gtk_list_new();
gtk_list_set_selection_mode (GTK_LIST (list), GTK_SELECTION_BROWSE);
gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scrolled_win), list);
gtk_container_set_focus_vadjustment (GTK_CONTAINER (list),
gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (scrolled_win)));
gtk_widget_show (scrolled_win);
gtk_widget_show (list);
g_signal_connect (G_OBJECT (list), "event",
G_CALLBACK (layer_list_events), NULL);
return vbox;
}
void
layer_dialog_create(void)
{
GtkWidget *dialog;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *omenu;
GtkWidget *menu;
GtkWidget *list;
GtkWidget *separator;
GtkWidget *scrolled_win;
GtkWidget *button_box;
GtkWidget *button;
layer_dialog = g_new(struct LayerDialog, 1);
layer_dialog->diagram = NULL;
layer_dialog->dialog = dialog = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (dialog), _("Layers"));
gtk_window_set_role (GTK_WINDOW (dialog), "layer_window");
gtk_window_set_resizable (GTK_WINDOW (dialog), TRUE);
g_signal_connect (G_OBJECT (dialog), "delete_event",
G_CALLBACK(layer_dialog_delete), NULL);
g_signal_connect (G_OBJECT (dialog), "destroy",
G_CALLBACK(gtk_widget_destroyed),
&(layer_dialog->dialog));
vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
hbox = gtk_hbox_new(FALSE, 1);
label = gtk_label_new(_("Diagram:"));
gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 2);
gtk_widget_show (label);
layer_dialog->diagram_omenu = omenu = gtk_option_menu_new();
gtk_box_pack_start(GTK_BOX(hbox), omenu, TRUE, TRUE, 2);
gtk_widget_show (omenu);
menu = gtk_menu_new();
gtk_option_menu_set_menu(GTK_OPTION_MENU(omenu), menu);
gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 2);
gtk_widget_show (hbox);
separator = gtk_hseparator_new();
gtk_box_pack_start(GTK_BOX(vbox), separator, FALSE, FALSE, 2);
gtk_widget_show (separator);
scrolled_win = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_box_pack_start (GTK_BOX (vbox), scrolled_win, TRUE, TRUE, 2);
layer_dialog->layer_list = list = gtk_list_new();
gtk_list_set_selection_mode (GTK_LIST (list), GTK_SELECTION_BROWSE);
gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scrolled_win), list);
gtk_container_set_focus_vadjustment (GTK_CONTAINER (list),
gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (scrolled_win)));
gtk_widget_show (scrolled_win);
gtk_widget_show (list);
g_signal_connect (G_OBJECT (list), "event",
G_CALLBACK (layer_list_events), NULL);
button_box = create_button_box(dialog, TRUE);
gtk_box_pack_start (GTK_BOX (vbox), button_box, FALSE, FALSE, 2);
gtk_widget_show (button_box);
gtk_container_set_border_width(GTK_CONTAINER(
gtk_dialog_get_action_area (GTK_DIALOG(dialog))),
2);
button = gtk_button_new_from_stock (GTK_STOCK_CLOSE);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_action_area (GTK_DIALOG(dialog))),
button, TRUE, TRUE, 0);
g_signal_connect_swapped(G_OBJECT (button), "clicked",
G_CALLBACK(gtk_widget_hide),
G_OBJECT(dialog));
gtk_widget_show (button);
persistence_register_window(GTK_WINDOW(dialog));
layer_dialog_update_diagram_list();
}
static void
dia_layer_select_callback(GtkWidget *widget, gpointer data)
{
DiaLayerWidget *lw;
lw = DIA_LAYER_WIDGET(widget);
/* Don't deselect if we're selected the active layer. This can happen
* if the window has been defocused. */
if (lw->dia->data->active_layer != lw->layer) {
diagram_remove_all_selected(lw->dia, TRUE);
}
diagram_update_extents(lw->dia);
data_set_active_layer(lw->dia->data, lw->layer);
diagram_add_update_all(lw->dia);
diagram_flush(lw->dia);
internal_call = TRUE;
if (lw->connect_off) { /* If the user wants this off, it becomes so */
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(lw->connectable), FALSE);
} else {
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(lw->connectable), TRUE);
}
internal_call = FALSE;
}
static void
dia_layer_deselect_callback(GtkWidget *widget, gpointer data)
{
DiaLayerWidget *lw = DIA_LAYER_WIDGET(widget);
/** If layer dialog or diagram is missing, we are so dead. */
if (layer_dialog == NULL || layer_dialog->diagram == NULL) return;
internal_call = TRUE;
/** Set to on if the user has requested so. */
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(lw->connectable),
lw->connect_on);
internal_call = FALSE;
}
static void
layer_dialog_new_callback(GtkWidget *widget, gpointer gdata)
{
Layer *layer;
Diagram *dia;
GtkWidget *selected;
GList *list = NULL;
GtkWidget *layer_widget;
int pos;
static int next_layer_num = 1;
dia = layer_dialog->diagram;
if (dia != NULL) {
gchar* new_layer_name = g_strdup_printf(_("New layer %d"),
next_layer_num++);
layer = new_layer(new_layer_name, dia->data);
assert(GTK_LIST(layer_dialog->layer_list)->selection != NULL);
selected = GTK_LIST(layer_dialog->layer_list)->selection->data;
pos = gtk_list_child_position(GTK_LIST(layer_dialog->layer_list), selected);
data_add_layer_at(dia->data, layer, dia->data->layers->len - pos);
diagram_add_update_all(dia);
diagram_flush(dia);
layer_widget = dia_layer_widget_new(dia, layer);
gtk_widget_show(layer_widget);
list = g_list_prepend(list, layer_widget);
gtk_list_insert_items(GTK_LIST(layer_dialog->layer_list), list, pos);
gtk_list_select_item(GTK_LIST(layer_dialog->layer_list), pos);
undo_layer(dia, layer, TYPE_ADD_LAYER, dia->data->layers->len - pos);
undo_set_transactionpoint(dia->undo);
}
}
static void
layer_dialog_rename_callback(GtkWidget *widget, gpointer gdata)
{
GtkWidget *selected;
Diagram *dia;
Layer *layer;
dia = layer_dialog->diagram;
selected = GTK_LIST(layer_dialog->layer_list)->selection->data;
layer = dia->data->active_layer;
layer_dialog_edit_layer (DIA_LAYER_WIDGET (selected), dia, layer);
}
static void
layer_dialog_delete_callback(GtkWidget *widget, gpointer gdata)
{
Diagram *dia;
GtkWidget *selected;
Layer *layer;
int pos;
dia = layer_dialog->diagram;
if ((dia != NULL) && (dia->data->layers->len>1)) {
assert(GTK_LIST(layer_dialog->layer_list)->selection != NULL);
selected = GTK_LIST(layer_dialog->layer_list)->selection->data;
layer = dia->data->active_layer;
data_remove_layer(dia->data, layer);
diagram_add_update_all(dia);
diagram_flush(dia);
pos = gtk_list_child_position(GTK_LIST(layer_dialog->layer_list), selected);
gtk_container_remove(GTK_CONTAINER(layer_dialog->layer_list), selected);
undo_layer(dia, layer, TYPE_DELETE_LAYER,
dia->data->layers->len - pos);
undo_set_transactionpoint(dia->undo);
if (--pos<0)
pos = 0;
gtk_list_select_item(GTK_LIST(layer_dialog->layer_list), pos);
}
}
static void
layer_dialog_raise_callback(GtkWidget *widget, gpointer gdata)
{
Layer *layer;
Diagram *dia;
GtkWidget *selected;
GList *list = NULL;
int pos;
dia = layer_dialog->diagram;
if ((dia != NULL) && (dia->data->layers->len>1)) {
assert(GTK_LIST(layer_dialog->layer_list)->selection != NULL);
selected = GTK_LIST(layer_dialog->layer_list)->selection->data;
pos = gtk_list_child_position(GTK_LIST(layer_dialog->layer_list), selected);
if (pos > 0) {
layer = DIA_LAYER_WIDGET(selected)->layer;
data_raise_layer(dia->data, layer);
list = g_list_prepend(list, selected);
g_object_ref(selected);
gtk_list_remove_items(GTK_LIST(layer_dialog->layer_list),
list);
gtk_list_insert_items(GTK_LIST(layer_dialog->layer_list),
list, pos - 1);
g_object_unref(selected);
gtk_list_select_item(GTK_LIST(layer_dialog->layer_list), pos-1);
diagram_add_update_all(dia);
diagram_flush(dia);
undo_layer(dia, layer, TYPE_RAISE_LAYER, 0);
undo_set_transactionpoint(dia->undo);
}
}
}
static void
layer_dialog_lower_callback(GtkWidget *widget, gpointer gdata)
{
Layer *layer;
Diagram *dia;
GtkWidget *selected;
GList *list = NULL;
int pos;
dia = layer_dialog->diagram;
if ((dia != NULL) && (dia->data->layers->len>1)) {
assert(GTK_LIST(layer_dialog->layer_list)->selection != NULL);
selected = GTK_LIST(layer_dialog->layer_list)->selection->data;
pos = gtk_list_child_position(GTK_LIST(layer_dialog->layer_list), selected);
if (pos < dia->data->layers->len-1) {
layer = DIA_LAYER_WIDGET(selected)->layer;
data_lower_layer(dia->data, layer);
list = g_list_prepend(list, selected);
g_object_ref(selected);
gtk_list_remove_items(GTK_LIST(layer_dialog->layer_list),
list);
gtk_list_insert_items(GTK_LIST(layer_dialog->layer_list),
list, pos + 1);
g_object_unref(selected);
gtk_list_select_item(GTK_LIST(layer_dialog->layer_list), pos+1);
diagram_add_update_all(dia);
diagram_flush(dia);
undo_layer(dia, layer, TYPE_LOWER_LAYER, 0);
undo_set_transactionpoint(dia->undo);
}
}
}
static void
layer_dialog_select_diagram_callback(GtkWidget *widget, gpointer gdata)
{
Diagram *dia = (Diagram *) gdata;
layer_dialog_set_diagram(dia);
}
void
layer_dialog_update_diagram_list(void)
{
GtkWidget *new_menu;
GtkWidget *menu_item;
GList *dia_list;
Diagram *dia;
char *filename;
int i;
int current_nr;
if (layer_dialog == NULL || layer_dialog->dialog == NULL) {
if (!dia_open_diagrams())
return; /* shortcut; maybe session end w/o this dialog */
else
layer_dialog_create();
}
g_assert(layer_dialog != NULL); /* must be valid now */
/* oh this options: here integrated UI ;( */
if (!layer_dialog->diagram_omenu)
return;
new_menu = gtk_menu_new();
current_nr = -1;
i = 0;
dia_list = dia_open_diagrams();
while (dia_list != NULL) {
dia = (Diagram *) dia_list->data;
if (dia == layer_dialog->diagram) {
current_nr = i;
}
filename = strrchr(dia->filename, G_DIR_SEPARATOR);
if (filename==NULL) {
filename = dia->filename;
} else {
filename++;
}
menu_item = gtk_menu_item_new_with_label(filename);
g_signal_connect (G_OBJECT (menu_item), "activate",
G_CALLBACK (layer_dialog_select_diagram_callback), dia);
gtk_menu_append( GTK_MENU(new_menu), menu_item);
gtk_widget_show (menu_item);
dia_list = g_list_next(dia_list);
i++;
}
if (dia_open_diagrams()==NULL) {
menu_item = gtk_menu_item_new_with_label (_("none"));
g_signal_connect (G_OBJECT (menu_item), "activate",
G_CALLBACK (layer_dialog_select_diagram_callback), NULL);
gtk_menu_append( GTK_MENU(new_menu), menu_item);
gtk_widget_show (menu_item);
}
gtk_option_menu_remove_menu(GTK_OPTION_MENU(layer_dialog->diagram_omenu));
gtk_option_menu_set_menu(GTK_OPTION_MENU(layer_dialog->diagram_omenu),
new_menu);
gtk_option_menu_set_history(GTK_OPTION_MENU(layer_dialog->diagram_omenu),
current_nr);
gtk_menu_set_active(GTK_MENU(new_menu), current_nr);
if (current_nr == -1) {
dia = NULL;
if (dia_open_diagrams()!=NULL) {
dia = (Diagram *) dia_open_diagrams()->data;
}
layer_dialog_set_diagram(dia);
}
}
void
layer_dialog_show()
{
if (is_integrated_ui () == FALSE)
{
if (layer_dialog == NULL || layer_dialog->dialog == NULL)
layer_dialog_create();
g_assert(layer_dialog != NULL); /* must be valid now */
gtk_window_present(GTK_WINDOW(layer_dialog->dialog));
}
}
/*
* Used to avoid writing to possibly already deleted layer in
* dia_layer_widget_connectable_toggled(). Must be called before
* e.g. gtk_list_clear_items() cause that will emit the toggled
* signal to last focus widget. See bug #329096
*/
static void
_layer_widget_clear_layer (GtkWidget *widget, gpointer user_data)
{
DiaLayerWidget *lw = DIA_LAYER_WIDGET(widget);
lw->layer = NULL;
}
void
layer_dialog_set_diagram(Diagram *dia)
{
DiagramData *data;
GtkWidget *layer_widget;
Layer *layer;
Layer *active_layer = NULL;
int sel_pos;
int i,j;
if (dia!=NULL)
active_layer = dia->data->active_layer;
if (layer_dialog == NULL || layer_dialog->dialog == NULL)
layer_dialog_create(); /* May have been destroyed */
g_assert(layer_dialog != NULL); /* must be valid now */
gtk_container_foreach (GTK_CONTAINER(layer_dialog->layer_list),
_layer_widget_clear_layer, NULL);
gtk_list_clear_items(GTK_LIST(layer_dialog->layer_list), 0, -1);
layer_dialog->diagram = dia;
if (dia != NULL) {
i = g_list_index(dia_open_diagrams(), dia);
if (i >= 0 && layer_dialog->diagram_omenu != NULL)
gtk_option_menu_set_history(GTK_OPTION_MENU(layer_dialog->diagram_omenu),
i);
}
if (dia != NULL) {
data = dia->data;
sel_pos = 0;
for (i=data->layers->len-1,j=0;i>=0;i--,j++) {
layer = (Layer *) g_ptr_array_index(data->layers, i);
layer_widget = dia_layer_widget_new(dia, layer);
gtk_widget_show(layer_widget);
gtk_container_add(GTK_CONTAINER(layer_dialog->layer_list), layer_widget);
if (layer==active_layer)
sel_pos = j;
}
gtk_list_select_item(GTK_LIST(layer_dialog->layer_list), sel_pos);
}
}
/******* DiaLayerWidget: *****/
/* The connectability buttons don't quite behave the way they should.
* The shift-click behavior messes up the active layer.
* To fix this, we need to rework the code so that the setting of
* connect_on and connect_off is not tied to the button toggling,
* but determined by what caused it (creation, user selection,
* shift-selection).
*/
static void
dia_layer_widget_unrealize(GtkWidget *widget)
{
DiaLayerWidget *lw = DIA_LAYER_WIDGET(widget);
if (lw->edit_dialog != NULL) {
gtk_widget_destroy(lw->edit_dialog->dialog);
g_free(lw->edit_dialog);
lw->edit_dialog = NULL;
}
(* GTK_WIDGET_CLASS (gtk_type_class(gtk_list_item_get_type ()))->unrealize) (widget);
}
static void
dia_layer_widget_class_init(DiaLayerWidgetClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->unrealize = dia_layer_widget_unrealize;
}
static void
dia_layer_widget_set_connectable(DiaLayerWidget *widget, gboolean on)
{
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget->connectable), on);
}
static void
dia_layer_widget_exclusive_connectable(DiaLayerWidget *layer_widget)
{
GList *list;
DiaLayerWidget *lw;
Layer *layer;
int connectable = FALSE;
int i;
/* First determine if _any_ other layer widgets are set to connectable */
for (i=0;i<layer_widget->dia->data->layers->len;i++) {
layer = g_ptr_array_index(layer_widget->dia->data->layers, i);
if (layer_widget->layer != layer) {
connectable |= layer->connectable;
}
}
/* Now, toggle the connectability for all layers except the specified one */
list = GTK_LIST(layer_dialog->layer_list)->children;
while (list) {
lw = DIA_LAYER_WIDGET(list->data);
if (lw != layer_widget)
dia_layer_widget_set_connectable(lw, !connectable);
else {
dia_layer_widget_set_connectable(lw, TRUE);
}
gtk_widget_queue_draw(GTK_WIDGET(lw));
list = g_list_next(list);
}
}
static gboolean shifted = FALSE;
static gboolean
dia_layer_widget_button_event(GtkWidget *widget,
GdkEventButton *event,
gpointer userdata)
{
DiaLayerWidget *lw = DIA_LAYER_WIDGET(userdata);
shifted = event->state & GDK_SHIFT_MASK;
internal_call = FALSE;
/* Redraw the label? */
gtk_widget_queue_draw(GTK_WIDGET(lw));
return FALSE;
}
static void
dia_layer_widget_connectable_toggled(GtkToggleButton *widget,
gpointer userdata)
{
DiaLayerWidget *lw = DIA_LAYER_WIDGET(userdata);
if (!lw->layer)
return;
if (shifted) {
shifted = FALSE;
internal_call = TRUE;
dia_layer_widget_exclusive_connectable(lw);
internal_call = FALSE;
} else {
lw->layer->connectable = gtk_toggle_button_get_active(widget);
}
if (lw->layer == lw->dia->data->active_layer) {
lw->connect_off = !gtk_toggle_button_get_active(widget);
if (lw->connect_off) lw->connect_on = FALSE;
} else {
lw->connect_on = gtk_toggle_button_get_active(widget);
if (lw->connect_on) lw->connect_off = FALSE;
}
gtk_widget_queue_draw(GTK_WIDGET(lw));
if (!internal_call) {
diagram_add_update_all(lw->dia);
diagram_flush(lw->dia);
}
}
static void
dia_layer_widget_visible_clicked(GtkToggleButton *widget,
gpointer userdata)
{
DiaLayerWidget *lw = DIA_LAYER_WIDGET(userdata);
struct LayerVisibilityChange *change;
/* Have to use this internal_call hack 'cause there's no way to switch
* a toggle button without causing the 'clicked' event:(
*/
if (!internal_call) {
Diagram *dia = lw->dia;
change = undo_layer_visibility(dia, lw->layer, shifted);
/** This apply kills 'lw', thus we have to hold onto 'lw->dia' */
layer_visibility_change_apply(change, dia);
undo_set_transactionpoint(dia->undo);
}
}
static void
dia_layer_widget_init(DiaLayerWidget *lw)
{
GtkWidget *hbox;
GtkWidget *visible;
GtkWidget *connectable;
GtkWidget *label;
hbox = gtk_hbox_new(FALSE, 0);
lw->dia = NULL;
lw->layer = NULL;
lw->edit_dialog = NULL;
lw->connect_on = FALSE;
lw->connect_off = FALSE;
lw->visible = visible =
dia_toggle_button_new_with_icons(dia_visible_icon, dia_visible_empty_icon);
g_signal_connect(G_OBJECT(visible), "button-release-event",
G_CALLBACK(dia_layer_widget_button_event), lw);
g_signal_connect(G_OBJECT(visible), "button-press-event",
G_CALLBACK(dia_layer_widget_button_event), lw);
g_signal_connect(G_OBJECT(visible), "clicked",
G_CALLBACK(dia_layer_widget_visible_clicked), lw);
gtk_box_pack_start (GTK_BOX (hbox), visible, FALSE, TRUE, 2);
gtk_widget_show(visible);
/*gtk_image_new_from_stock(GTK_STOCK_CONNECT,
GTK_ICON_SIZE_BUTTON), */
lw->connectable = connectable =
dia_toggle_button_new_with_icons(dia_connectable_icon,
dia_connectable_empty_icon);
g_signal_connect(G_OBJECT(connectable), "button-release-event",
G_CALLBACK(dia_layer_widget_button_event), lw);
g_signal_connect(G_OBJECT(connectable), "button-press-event",
G_CALLBACK(dia_layer_widget_button_event), lw);
g_signal_connect(G_OBJECT(connectable), "clicked",
G_CALLBACK(dia_layer_widget_connectable_toggled), lw);
gtk_box_pack_start (GTK_BOX (hbox), connectable, FALSE, TRUE, 2);
gtk_widget_show(connectable);
lw->label = label = gtk_label_new("layer_default_label");
gtk_label_set_justify(GTK_LABEL(label), GTK_JUSTIFY_LEFT);
gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, TRUE, 0);
gtk_widget_show(label);
gtk_widget_show(hbox);
gtk_container_add(GTK_CONTAINER(lw), hbox);
g_signal_connect (G_OBJECT (lw), "select",
G_CALLBACK (dia_layer_select_callback), NULL);
g_signal_connect (G_OBJECT (lw), "deselect",
G_CALLBACK (dia_layer_deselect_callback), NULL);
}
GType
dia_layer_widget_get_type(void)
{
static GType dlw_type = 0;
if (!dlw_type) {
static const GTypeInfo dlw_info = {
sizeof (DiaLayerWidgetClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) dia_layer_widget_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(DiaLayerWidget),
0, /* n_preallocs */
(GInstanceInitFunc)dia_layer_widget_init,
};
dlw_type = g_type_register_static (gtk_list_item_get_type (),
"DiaLayerWidget",
&dlw_info, 0);
}
return dlw_type;
}
static GtkWidget *
dia_layer_widget_new(Diagram *dia, Layer *layer)
{
GtkWidget *widget;
widget = GTK_WIDGET ( gtk_type_new (dia_layer_widget_get_type ()));
dia_layer_set_layer(DIA_LAYER_WIDGET(widget), dia, layer);
/* These may get toggled when the button is set without the widget being
* selected first.
* The connect_on state gets also used to restore with just a deselect
* of the active layer.
*/
DIA_LAYER_WIDGET(widget)->connect_on = layer->connectable;
DIA_LAYER_WIDGET(widget)->connect_off = FALSE;
return widget;
}
/** Layer has either been selected or created */
static void
dia_layer_set_layer(DiaLayerWidget *widget, Diagram *dia, Layer *layer)
{
widget->dia = dia;
widget->layer = layer;
dia_layer_update_from_layer(widget);
}
static void
dia_layer_update_from_layer (DiaLayerWidget *widget)
{
internal_call = TRUE;
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget->visible),
widget->layer->visible);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget->connectable),
widget->layer->connectable);
internal_call = FALSE;
gtk_label_set_text (GTK_LABEL (widget->label), widget->layer->name);
}
/*
* The edit layer attributes dialog
*/
/* called from the layer widget for rename */
static void
edit_layer_ok_callback (GtkWidget *w, gpointer client_data)
{
EditLayerDialog *dialog = (EditLayerDialog *) client_data;
Layer *layer;
g_return_if_fail (dialog->layer_widget != NULL);
layer = dialog->layer_widget->layer;
g_free (layer->name);
layer->name = g_strdup (gtk_entry_get_text (GTK_ENTRY (dialog->name_entry)));
/* reflect name change on listeners */
dia_diagram_change (dialog->layer_widget->dia, DIAGRAM_CHANGE_LAYER, layer);
diagram_add_update_all (dialog->layer_widget->dia);
diagram_flush (dialog->layer_widget->dia);
dia_layer_update_from_layer (dialog->layer_widget);
dialog->layer_widget->edit_dialog = NULL;
gtk_widget_destroy (dialog->dialog);
g_free (dialog);
}
static void
edit_layer_add_ok_callback (GtkWidget *w, gpointer client_data)
{
EditLayerDialog *dialog = (EditLayerDialog *) client_data;
Diagram *dia = ddisplay_active_diagram();
Layer *layer;
int pos = data_layer_get_index (dia->data, dia->data->active_layer) + 1;
layer = new_layer(g_strdup (gtk_entry_get_text (GTK_ENTRY (dialog->name_entry))), dia->data);
data_add_layer_at(dia->data, layer, pos);
data_set_active_layer(dia->data, layer);
diagram_add_update_all(dia);
diagram_flush(dia);
undo_layer(dia, layer, TYPE_ADD_LAYER, pos);
undo_set_transactionpoint(dia->undo);
/* ugly way of updating the layer widget */
if (layer_dialog && layer_dialog->diagram == dia) {
layer_dialog_set_diagram(dia);
}
gtk_widget_destroy (dialog->dialog);
g_free (dialog);
}
static void
edit_layer_rename_ok_callback (GtkWidget *w, gpointer client_data)
{
EditLayerDialog *dialog = (EditLayerDialog *) client_data;
Diagram *dia = ddisplay_active_diagram();
Layer *layer = dia->data->active_layer;
g_free (layer->name);
layer->name = g_strdup (gtk_entry_get_text (GTK_ENTRY (dialog->name_entry)));
diagram_add_update_all(dia);
diagram_flush(dia);
/* FIXME: undo handling */
/* ugly way of updating the layer widget */
if (layer_dialog && layer_dialog->diagram == dia) {
layer_dialog_set_diagram(dia);
}
gtk_widget_destroy (dialog->dialog);
g_free (dialog);
}
static void
edit_layer_cancel_callback (GtkWidget *w,
gpointer client_data)
{
EditLayerDialog *dialog;
dialog = (EditLayerDialog *) client_data;
if (dialog->layer_widget)
dialog->layer_widget->edit_dialog = NULL;
if (dialog->dialog != NULL)
gtk_widget_destroy (dialog->dialog);
g_free (dialog);
}
static gint
edit_layer_delete_callback (GtkWidget *w,
GdkEvent *e,
gpointer client_data)
{
edit_layer_cancel_callback (w, client_data);
return TRUE;
}
static void
layer_dialog_edit_layer (DiaLayerWidget *layer_widget, Diagram *dia, Layer *layer)
{
EditLayerDialog *dialog;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *button;
/* the new dialog structure */
dialog = (EditLayerDialog *) g_malloc (sizeof (EditLayerDialog));
dialog->layer_widget = layer_widget;
/* the dialog */
dialog->dialog = gtk_dialog_new ();
gtk_window_set_role (GTK_WINDOW (dialog->dialog), "edit_layer_attrributes");
gtk_window_set_title (GTK_WINDOW (dialog->dialog),
(layer_widget || layer) ? _("Edit Layer") : _("Add Layer"));
gtk_window_set_position (GTK_WINDOW (dialog->dialog), GTK_WIN_POS_MOUSE);
/* handle the wm close signal */
g_signal_connect (G_OBJECT (dialog->dialog), "delete_event",
G_CALLBACK (edit_layer_delete_callback),
dialog);
g_signal_connect (G_OBJECT (dialog->dialog), "destroy",
G_CALLBACK (gtk_widget_destroy),
&dialog->dialog);
/* the main vbox */
vbox = gtk_vbox_new (FALSE, 1);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog->dialog))), vbox, TRUE, TRUE, 0);
/* the name entry hbox, label and entry */
hbox = gtk_hbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
label = gtk_label_new (_("Layer name:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
dialog->name_entry = gtk_entry_new ();
gtk_entry_set_activates_default(GTK_ENTRY (dialog->name_entry), TRUE);
gtk_box_pack_start (GTK_BOX (hbox), dialog->name_entry, TRUE, TRUE, 0);
if (layer_widget)
gtk_entry_set_text (GTK_ENTRY (dialog->name_entry), layer_widget->layer->name);
else if (layer)
gtk_entry_set_text (GTK_ENTRY (dialog->name_entry), layer->name);
else if (dia) {
gchar *name = g_strdup_printf (_("New layer %d"), dia->data->layers->len);
gtk_entry_set_text (GTK_ENTRY (dialog->name_entry), name);
g_free (name);
}
gtk_widget_show (dialog->name_entry);
gtk_widget_show (hbox);
button = gtk_button_new_from_stock (GTK_STOCK_OK);
#if GTK_CHECK_VERSION(2,18,0)
gtk_widget_set_can_default (GTK_WIDGET (button), TRUE);
#else
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
#endif
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_action_area (GTK_DIALOG (dialog->dialog))),
button, TRUE, TRUE, 0);
if (layer_widget)
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK(edit_layer_ok_callback), dialog);
else if (layer)
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK(edit_layer_rename_ok_callback), dialog);
else if (dia)
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK(edit_layer_add_ok_callback), dialog);
gtk_widget_grab_default (button);
gtk_widget_show (button);
button = gtk_button_new_from_stock (GTK_STOCK_CANCEL);
#if GTK_CHECK_VERSION(2,18,0)
gtk_widget_set_can_default (GTK_WIDGET (button), TRUE);
#else
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
#endif
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_action_area (GTK_DIALOG (dialog->dialog))),
button, TRUE, TRUE, 0);
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK(edit_layer_cancel_callback),
dialog);
gtk_widget_show (button);
gtk_widget_show (vbox);
gtk_widget_show (dialog->dialog);
if (layer_widget)
layer_widget->edit_dialog = dialog;
}
/******** layer changes: */
static void
layer_change_apply(struct LayerChange *change, Diagram *dia)
{
change->applied = 1;
switch (change->type) {
case TYPE_DELETE_LAYER:
data_remove_layer(dia->data, change->layer);
break;
case TYPE_ADD_LAYER:
data_add_layer_at(dia->data, change->layer, change->index);
break;
case TYPE_RAISE_LAYER:
data_raise_layer(dia->data, change->layer);
break;
case TYPE_LOWER_LAYER:
data_lower_layer(dia->data, change->layer);
break;
}
diagram_add_update_all(dia);
if (layer_dialog->diagram == dia) {
layer_dialog_set_diagram(dia);
}
}
static void
layer_change_revert(struct LayerChange *change, Diagram *dia)
{
switch (change->type) {
case TYPE_DELETE_LAYER:
data_add_layer_at(dia->data, change->layer, change->index);
break;
case TYPE_ADD_LAYER:
data_remove_layer(dia->data, change->layer);
break;
case TYPE_RAISE_LAYER:
data_lower_layer(dia->data, change->layer);
break;
case TYPE_LOWER_LAYER:
data_raise_layer(dia->data, change->layer);
break;
}
diagram_add_update_all(dia);
if (layer_dialog->diagram == dia) {
layer_dialog_set_diagram(dia);
}
change->applied = 0;
}
static void
layer_change_free(struct LayerChange *change)
{
switch (change->type) {
case TYPE_DELETE_LAYER:
if (change->applied) {
layer_destroy(change->layer);
}
break;
case TYPE_ADD_LAYER:
if (!change->applied) {
layer_destroy(change->layer);
}
break;
case TYPE_RAISE_LAYER:
break;
case TYPE_LOWER_LAYER:
break;
}
}
static Change *
undo_layer(Diagram *dia, Layer *layer, enum LayerChangeType type, int index)
{
struct LayerChange *change;
change = g_new0(struct LayerChange, 1);
change->change.apply = (UndoApplyFunc) layer_change_apply;
change->change.revert = (UndoRevertFunc) layer_change_revert;
change->change.free = (UndoFreeFunc) layer_change_free;
change->type = type;
change->layer = layer;
change->index = index;
change->applied = 1;
undo_push_change(dia->undo, (Change *) change);
return (Change *)change;
}
static void
layer_visibility_change_apply(struct LayerVisibilityChange *change,
Diagram *dia)
{
GPtrArray *layers;
Layer *layer = change->layer;
int visible = FALSE;
int i;
if (change->is_exclusive) {
/* First determine if _any_ other layer widgets are set to visible.
* If there is, exclusive switching turns all off. */
for (i=0;i<dia->data->layers->len;i++) {
Layer *temp_layer = g_ptr_array_index(dia->data->layers, i);
if (temp_layer != layer) {
visible |= temp_layer->visible;
}
}
/* Now, toggle the visibility for all layers except the specified one */
layers = dia->data->layers;
for (i = 0; i < layers->len; i++) {
Layer *temp_layer = (Layer *) g_ptr_array_index(layers, i);
if (temp_layer == layer) {
temp_layer->visible = TRUE;
} else {
temp_layer->visible = !visible;
}
}
} else {
layer->visible = !layer->visible;
}
diagram_add_update_all(dia);
if (layer_dialog->diagram == dia) {
layer_dialog_set_diagram(dia);
}
}
/** Revert to the visibility before this change was applied.
*/
static void
layer_visibility_change_revert(struct LayerVisibilityChange *change,
Diagram *dia)
{
GList *vis = change->original_visibility;
GPtrArray *layers = dia->data->layers;
int i;
for (i = 0; vis != NULL && i < layers->len; vis = g_list_next(vis), i++) {
Layer *layer = (Layer*) g_ptr_array_index(layers, i);
layer->visible = (gboolean)vis->data;
}
if (vis != NULL || i < layers->len) {
fprintf(stderr, "Internal error: visibility undo has %d visibilities, but %d layers\n",
g_list_length(change->original_visibility), layers->len);
}
diagram_add_update_all(dia);
if (layer_dialog->diagram == dia) {
layer_dialog_set_diagram(dia);
}
}
static void
layer_visibility_change_free(struct LayerVisibilityChange *change)
{
g_list_free(change->original_visibility);
}
static struct LayerVisibilityChange *
undo_layer_visibility(Diagram *dia, Layer *layer, gboolean exclusive)
{
struct LayerVisibilityChange *change;
GList *visibilities = NULL;
int i;
GPtrArray *layers = dia->data->layers;
change = g_new0(struct LayerVisibilityChange, 1);
change->change.apply = (UndoApplyFunc) layer_visibility_change_apply;
change->change.revert = (UndoRevertFunc) layer_visibility_change_revert;
change->change.free = (UndoFreeFunc) layer_visibility_change_free;
for (i = 0; i < layers->len; i++) {
Layer *temp_layer = (Layer *) g_ptr_array_index(layers, i);
visibilities = g_list_append(visibilities, (gpointer)(intptr_t)temp_layer->visible);
}
change->original_visibility = visibilities;
change->layer = layer;
change->is_exclusive = exclusive;
undo_push_change(dia->undo, (Change *) change);
return change;
}
/*!
* \brief edit a layers name, possibly also creating the layer
*/
void
diagram_edit_layer(Diagram *dia, Layer *layer)
{
g_return_if_fail(dia != NULL);
layer_dialog_edit_layer (NULL, layer ? NULL : dia, layer);
}
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