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hexchat/src/fe-gtk/chanview-tabs.c

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/* HexChat
* Copyright (C) 1998-2010 Peter Zelezny.
* Copyright (C) 2009-2013 Berke Viktor.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
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/* file included in chanview.c */
typedef struct
{
GtkWidget *outer; /* outer box */
GtkWidget *inner; /* inner box */
GtkWidget *b1; /* button1 */
GtkWidget *b2; /* button2 */
} tabview;
static void chanview_populate (chanview *cv);
/* ignore "toggled" signal? */
static int ignore_toggle = FALSE;
static int tab_left_is_moving = 0;
static int tab_right_is_moving = 0;
/* userdata for gobjects used here:
*
* tab (togglebuttons inside boxes):
* "u" userdata passed to tab-focus callback function (sess)
* "c" the tab's (chan *)
*
* box (family box)
* "f" family
*
*/
/*
* GtkViewports request at least as much space as their children do.
* If we don't intervene here, the GtkViewport will be granted its
* request, even at the expense of resizing the top-level window.
*/
static void
cv_tabs_sizerequest (GtkWidget *viewport, GtkRequisition *requisition, chanview *cv)
{
if (!cv->vertical)
requisition->width = 1;
else
requisition->height = 1;
}
static void
cv_tabs_sizealloc (GtkWidget *widget, GtkAllocation *allocation, chanview *cv)
{
GdkWindow *parent_win;
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GtkAdjustment *adj;
GtkWidget *inner;
gint viewport_size;
inner = ((tabview *)cv)->inner;
parent_win = gtk_widget_get_window (gtk_widget_get_parent (inner));
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if (cv->vertical)
{
adj = gtk_viewport_get_vadjustment (GTK_VIEWPORT (gtk_widget_get_parent (inner)));
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gdk_window_get_geometry (parent_win, 0, 0, 0, &viewport_size, 0);
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} else
{
adj = gtk_viewport_get_hadjustment (GTK_VIEWPORT (gtk_widget_get_parent (inner)));
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gdk_window_get_geometry (parent_win, 0, 0, &viewport_size, 0, 0);
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}
if (gtk_adjustment_get_upper (adj) <= viewport_size)
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{
gtk_widget_hide (((tabview *)cv)->b1);
gtk_widget_hide (((tabview *)cv)->b2);
} else
{
gtk_widget_show (((tabview *)cv)->b1);
gtk_widget_show (((tabview *)cv)->b2);
}
}
static gint
tab_search_offset (GtkWidget *inner, gint start_offset,
gboolean forward, gboolean vertical)
{
GList *boxes;
GList *tabs;
GtkWidget *box;
GtkWidget *button;
GtkAllocation allocation;
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gint found;
boxes = gtk_container_get_children (GTK_CONTAINER (inner));
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if (!forward && boxes)
boxes = g_list_last (boxes);
while (boxes)
{
box = (GtkWidget *)boxes->data;
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boxes = (forward ? boxes->next : boxes->prev);
tabs = gtk_container_get_children (GTK_CONTAINER (box));
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if (!forward && tabs)
tabs = g_list_last (tabs);
while (tabs)
{
button = (GtkWidget *)tabs->data;
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tabs = (forward ? tabs->next : tabs->prev);
if (!GTK_IS_TOGGLE_BUTTON (button))
continue;
gtk_widget_get_allocation (button, &allocation);
found = (vertical ? allocation.y : allocation.x);
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if ((forward && found > start_offset) ||
(!forward && found < start_offset))
return found;
}
}
return 0;
}
static void
tab_scroll_left_up_clicked (GtkWidget *widget, chanview *cv)
{
GtkAdjustment *adj;
gint viewport_size;
gfloat new_value;
GtkWidget *inner;
GdkWindow *parent_win;
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gdouble i;
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inner = ((tabview *)cv)->inner;
parent_win = gtk_widget_get_window (gtk_widget_get_parent (inner));
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if (cv->vertical)
{
adj = gtk_viewport_get_vadjustment (GTK_VIEWPORT (gtk_widget_get_parent(inner)));
gdk_window_get_geometry (parent_win, 0, 0, 0, &viewport_size, 0);
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} else
{
adj = gtk_viewport_get_hadjustment (GTK_VIEWPORT (gtk_widget_get_parent(inner)));
gdk_window_get_geometry (parent_win, 0, 0, &viewport_size, 0, 0);
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}
new_value = tab_search_offset (inner, gtk_adjustment_get_value (adj), 0, cv->vertical);
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if (new_value + viewport_size > gtk_adjustment_get_upper (adj))
new_value = gtk_adjustment_get_upper (adj) - viewport_size;
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if (!tab_left_is_moving)
{
tab_left_is_moving = 1;
for (i = gtk_adjustment_get_value (adj); ((i > new_value) && (tab_left_is_moving)); i -= 0.1)
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{
gtk_adjustment_set_value (adj, i);
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while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, TRUE);
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}
gtk_adjustment_set_value (adj, new_value);
tab_left_is_moving = 0; /* hSP: set to false in case we didnt get stopped (the normal case) */
}
else
{
tab_left_is_moving = 0; /* hSP: jump directly to next element if user is clicking faster than we can scroll.. */
}
}
static void
tab_scroll_right_down_clicked (GtkWidget *widget, chanview *cv)
{
GtkAdjustment *adj;
gint viewport_size;
gfloat new_value;
GtkWidget *inner;
GdkWindow *parent_win;
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gdouble i;
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inner = ((tabview *)cv)->inner;
parent_win = gtk_widget_get_window (gtk_widget_get_parent (inner));
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if (cv->vertical)
{
adj = gtk_viewport_get_vadjustment (GTK_VIEWPORT (gtk_widget_get_parent(inner)));
gdk_window_get_geometry (parent_win, 0, 0, 0, &viewport_size, 0);
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} else
{
adj = gtk_viewport_get_hadjustment (GTK_VIEWPORT (gtk_widget_get_parent(inner)));
gdk_window_get_geometry (parent_win, 0, 0, &viewport_size, 0, 0);
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}
new_value = tab_search_offset (inner, gtk_adjustment_get_value (adj), 1, cv->vertical);
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if (new_value == 0 || new_value + viewport_size > gtk_adjustment_get_upper (adj))
new_value = gtk_adjustment_get_upper (adj) - viewport_size;
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if (!tab_right_is_moving)
{
tab_right_is_moving = 1;
for (i = gtk_adjustment_get_value (adj); ((i < new_value) && (tab_right_is_moving)); i += 0.1)
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{
gtk_adjustment_set_value (adj, i);
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while (g_main_context_pending (NULL))
g_main_context_iteration (NULL, TRUE);
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}
gtk_adjustment_set_value (adj, new_value);
tab_right_is_moving = 0; /* hSP: set to false in case we didnt get stopped (the normal case) */
}
else
{
tab_right_is_moving = 0; /* hSP: jump directly to next element if user is clicking faster than we can scroll.. */
}
}
static gboolean
tab_scroll_cb (GtkWidget *widget, GdkEventScroll *event, gpointer cv)
{
if (prefs.hex_gui_tab_scrollchans)
{
if (event->direction == GDK_SCROLL_DOWN)
mg_switch_page (1, 1);
else if (event->direction == GDK_SCROLL_UP)
mg_switch_page (1, -1);
}
else
{
/* mouse wheel scrolling */
if (event->direction == GDK_SCROLL_UP)
tab_scroll_left_up_clicked (widget, cv);
else if (event->direction == GDK_SCROLL_DOWN)
tab_scroll_right_down_clicked (widget, cv);
}
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return FALSE;
}
static void
cv_tabs_xclick_cb (GtkWidget *button, chanview *cv)
{
cv->cb_xbutton (cv, cv->focused, cv->focused->tag, cv->focused->userdata);
}
/* make a Scroll (arrow) button */
static GtkWidget *
make_sbutton (GtkArrowType type, void *click_cb, void *userdata)
{
GtkWidget *button, *arrow;
button = gtk_button_new ();
arrow = gtk_arrow_new (type, GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (button), arrow);
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (click_cb), userdata);
g_signal_connect (G_OBJECT (button), "scroll_event",
G_CALLBACK (tab_scroll_cb), userdata);
gtk_widget_show (arrow);
return button;
}
static void
cv_tabs_init (chanview *cv)
{
GtkWidget *box, *hbox = NULL;
GtkWidget *viewport;
GtkWidget *outer;
GtkWidget *button;
if (cv->vertical)
outer = gtk_vbox_new (0, 0);
else
outer = gtk_hbox_new (0, 0);
((tabview *)cv)->outer = outer;
g_signal_connect (G_OBJECT (outer), "size_allocate",
G_CALLBACK (cv_tabs_sizealloc), cv);
/* gtk_container_set_border_width (GTK_CONTAINER (outer), 2);*/
gtk_widget_show (outer);
viewport = gtk_viewport_new (0, 0);
gtk_viewport_set_shadow_type (GTK_VIEWPORT (viewport), GTK_SHADOW_NONE);
g_signal_connect (G_OBJECT (viewport), "size_request",
G_CALLBACK (cv_tabs_sizerequest), cv);
g_signal_connect (G_OBJECT (viewport), "scroll_event",
G_CALLBACK (tab_scroll_cb), cv);
gtk_box_pack_start (GTK_BOX (outer), viewport, 1, 1, 0);
gtk_widget_show (viewport);
if (cv->vertical)
box = gtk_vbox_new (FALSE, 0);
else
box = gtk_hbox_new (FALSE, 0);
((tabview *)cv)->inner = box;
gtk_container_add (GTK_CONTAINER (viewport), box);
gtk_widget_show (box);
/* if vertical, the buttons can be side by side */
if (cv->vertical)
{
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (outer), hbox, 0, 0, 0);
gtk_widget_show (hbox);
}
/* make the Scroll buttons */
((tabview *)cv)->b2 = make_sbutton (cv->vertical ?
GTK_ARROW_UP : GTK_ARROW_LEFT,
tab_scroll_left_up_clicked,
cv);
((tabview *)cv)->b1 = make_sbutton (cv->vertical ?
GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
tab_scroll_right_down_clicked,
cv);
if (hbox)
{
gtk_container_add (GTK_CONTAINER (hbox), ((tabview *)cv)->b2);
gtk_container_add (GTK_CONTAINER (hbox), ((tabview *)cv)->b1);
} else
{
gtk_box_pack_start (GTK_BOX (outer), ((tabview *)cv)->b2, 0, 0, 0);
gtk_box_pack_start (GTK_BOX (outer), ((tabview *)cv)->b1, 0, 0, 0);
}
button = gtkutil_button (outer, GTK_STOCK_CLOSE, NULL, cv_tabs_xclick_cb,
cv, 0);
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
gtk_widget_set_can_focus (button, FALSE);
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gtk_container_add (GTK_CONTAINER (cv->box), outer);
}
static void
cv_tabs_postinit (chanview *cv)
{
}
static void
tab_add_sorted (chanview *cv, GtkWidget *box, GtkWidget *tab, chan *ch)
{
GList *list;
GtkWidget *child;
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int i = 0;
void *b;
if (!cv->sorted)
{
gtk_box_pack_start (GTK_BOX (box), tab, 0, 0, 0);
gtk_widget_show (tab);
return;
}
/* sorting TODO:
* - move tab if renamed (dialogs) */
/* userdata, passed to mg_tabs_compare() */
b = ch->userdata;
list = gtk_container_get_children (GTK_CONTAINER (box));
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while (list)
{
child = list->data;
if (!GTK_IS_SEPARATOR (child))
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{
void *a = g_object_get_data (G_OBJECT (child), "u");
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if (ch->tag == 0 && cv->cb_compare (a, b) > 0)
{
gtk_box_pack_start (GTK_BOX (box), tab, 0, 0, 0);
gtk_box_reorder_child (GTK_BOX (box), tab, ++i);
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gtk_widget_show (tab);
return;
}
}
i++;
list = list->next;
}
/* append */
gtk_box_pack_start (GTK_BOX (box), tab, 0, 0, 0);
gtk_box_reorder_child (GTK_BOX (box), tab, i);
gtk_widget_show (tab);
}
/* remove empty boxes and separators */
static void
cv_tabs_prune (chanview *cv)
{
GList *boxes, *children;
GtkWidget *box, *inner;
GtkWidget *child;
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int empty;
inner = ((tabview *)cv)->inner;
boxes = gtk_container_get_children (GTK_CONTAINER (inner));
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while (boxes)
{
child = boxes->data;
box = child;
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boxes = boxes->next;
/* check if the box is empty (except a vseperator) */
empty = TRUE;
children = gtk_container_get_children (GTK_CONTAINER (box));
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while (children)
{
if (!GTK_IS_SEPARATOR ((GtkWidget *)children->data))
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{
empty = FALSE;
break;
}
children = children->next;
}
if (empty)
gtk_widget_destroy (box);
}
}
static void
tab_add_real (chanview *cv, GtkWidget *tab, chan *ch)
{
GList *boxes, *children;
GtkWidget *sep, *box, *inner;
GtkWidget *child;
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int empty;
inner = ((tabview *)cv)->inner;
/* see if a family for this tab already exists */
boxes = gtk_container_get_children (GTK_CONTAINER (inner));
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while (boxes)
{
child = boxes->data;
box = child;
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if (g_object_get_data (G_OBJECT (box), "f") == ch->family)
{
tab_add_sorted (cv, box, tab, ch);
gtk_widget_queue_resize (gtk_widget_get_parent(inner));
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return;
}
boxes = boxes->next;
/* check if the box is empty (except a vseperator) */
empty = TRUE;
children = gtk_container_get_children (GTK_CONTAINER (box));
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while (children)
{
if (!GTK_IS_SEPARATOR ((GtkWidget *)children->data))
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{
empty = FALSE;
break;
}
children = children->next;
}
if (empty)
gtk_widget_destroy (box);
}
/* create a new family box */
if (cv->vertical)
{
/* vertical */
box = gtk_vbox_new (FALSE, 0);
sep = gtk_hseparator_new ();
} else
{
/* horiz */
box = gtk_hbox_new (FALSE, 0);
sep = gtk_vseparator_new ();
}
gtk_box_pack_end (GTK_BOX (box), sep, 0, 0, 4);
gtk_widget_show (sep);
gtk_box_pack_start (GTK_BOX (inner), box, 0, 0, 0);
g_object_set_data (G_OBJECT (box), "f", ch->family);
gtk_box_pack_start (GTK_BOX (box), tab, 0, 0, 0);
gtk_widget_show (tab);
gtk_widget_show (box);
gtk_widget_queue_resize (gtk_widget_get_parent(inner));
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}
static gboolean
tab_ignore_cb (GtkWidget *widget, GdkEventCrossing *event, gpointer user_data)
{
return TRUE;
}
/* called when a tab is clicked (button down) */
static void
tab_pressed_cb (GtkToggleButton *tab, chan *ch)
{
chan *old_tab;
int is_switching = TRUE;
chanview *cv = ch->cv;
ignore_toggle = TRUE;
/* de-activate the old tab */
old_tab = cv->focused;
if (old_tab && old_tab->impl)
{
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (old_tab->impl), FALSE);
if (old_tab == ch)
is_switching = FALSE;
}
gtk_toggle_button_set_active (tab, TRUE);
ignore_toggle = FALSE;
cv->focused = ch;
if (/*tab->active*/is_switching)
/* call the focus callback */
cv->cb_focus (cv, ch, ch->tag, ch->userdata);
}
/* called for keyboard tab toggles only */
static void
tab_toggled_cb (GtkToggleButton *tab, chan *ch)
{
if (ignore_toggle)
return;
/* activated a tab via keyboard */
tab_pressed_cb (tab, ch);
}
static gboolean
tab_click_cb (GtkWidget *wid, GdkEventButton *event, chan *ch)
{
return ch->cv->cb_contextmenu (ch->cv, ch, ch->tag, ch->userdata, event);
}
static void *
cv_tabs_add (chanview *cv, chan *ch, char *name, GtkTreeIter *parent)
{
GtkWidget *but;
but = gtk_toggle_button_new_with_label (name);
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gtk_widget_set_name (but, "hexchat-tab");
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g_object_set_data (G_OBJECT (but), "c", ch);
/* used to trap right-clicks */
g_signal_connect (G_OBJECT (but), "button_press_event",
G_CALLBACK (tab_click_cb), ch);
/* avoid prelights */
g_signal_connect (G_OBJECT (but), "enter_notify_event",
G_CALLBACK (tab_ignore_cb), NULL);
g_signal_connect (G_OBJECT (but), "leave_notify_event",
G_CALLBACK (tab_ignore_cb), NULL);
g_signal_connect (G_OBJECT (but), "pressed",
G_CALLBACK (tab_pressed_cb), ch);
/* for keyboard */
g_signal_connect (G_OBJECT (but), "toggled",
G_CALLBACK (tab_toggled_cb), ch);
g_object_set_data (G_OBJECT (but), "u", ch->userdata);
tab_add_real (cv, but, ch);
return but;
}
/* traverse all the family boxes of tabs
*
* A "group" is basically:
* GtkV/HBox
* `-GtkViewPort
* `-GtkV/HBox (inner box)
* `- GtkBox (family box)
* `- GtkToggleButton
* `- GtkToggleButton
* `- ...
* `- GtkBox
* `- GtkToggleButton
* `- GtkToggleButton
* `- ...
* `- ...
*
* */
static int
tab_group_for_each_tab (chanview *cv,
int (*callback) (GtkWidget *tab, int num, int usernum),
int usernum)
{
GList *tabs;
GList *boxes;
GtkWidget *child;
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GtkBox *innerbox;
int i;
innerbox = (GtkBox *) ((tabview *)cv)->inner;
boxes = gtk_container_get_children (GTK_CONTAINER (innerbox));
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i = 0;
while (boxes)
{
child = boxes->data;
tabs = gtk_container_get_children (GTK_CONTAINER (child));
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while (tabs)
{
child = tabs->data;
if (!GTK_IS_SEPARATOR (child))
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{
if (callback (child, i, usernum) != -1)
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return i;
i++;
}
tabs = tabs->next;
}
boxes = boxes->next;
}
return i;
}
static int
tab_check_focus_cb (GtkWidget *tab, int num, int unused)
{
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (tab)))
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return num;
return -1;
}
/* returns the currently focused tab number */
static int
tab_group_get_cur_page (chanview *cv)
{
return tab_group_for_each_tab (cv, tab_check_focus_cb, 0);
}
static void
cv_tabs_focus (chan *ch)
{
if (ch->impl)
/* focus the new one (tab_pressed_cb defocuses the old one) */
tab_pressed_cb (GTK_TOGGLE_BUTTON (ch->impl), ch);
}
static int
tab_focus_num_cb (GtkWidget *tab, int num, int want)
{
if (num == want)
{
cv_tabs_focus (g_object_get_data (G_OBJECT (tab), "c"));
return 1;
}
return -1;
}
static void
cv_tabs_change_orientation (chanview *cv)
{
/* cleanup the old one */
if (cv->func_cleanup)
cv->func_cleanup (cv);
/* now rebuild a new tabbar or tree */
cv->func_init (cv);
chanview_populate (cv);
}
/* switch to the tab number specified */
static void
cv_tabs_move_focus (chanview *cv, gboolean relative, int num)
{
int i, max;
if (relative)
{
max = cv->size;
i = tab_group_get_cur_page (cv) + num;
/* make it wrap around at both ends */
if (i < 0)
i = max - 1;
if (i >= max)
i = 0;
tab_group_for_each_tab (cv, tab_focus_num_cb, i);
return;
}
tab_group_for_each_tab (cv, tab_focus_num_cb, num);
}
static void
cv_tabs_remove (chan *ch)
{
gtk_widget_destroy (ch->impl);
ch->impl = NULL;
cv_tabs_prune (ch->cv);
}
static void
cv_tabs_move (chan *ch, int delta)
{
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int i = 0;
int pos = 0;
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GList *list;
GtkWidget *parent = gtk_widget_get_parent(GTK_WIDGET (ch->impl));
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for (list = gtk_container_get_children (GTK_CONTAINER (parent)); list; list = list->next)
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{
GtkWidget *child_entry;
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child_entry = list->data;
if (child_entry == ch->impl)
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pos = i;
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/* keep separator at end to not throw off our count */
if (GTK_IS_SEPARATOR (child_entry))
gtk_box_reorder_child (GTK_BOX (parent), child_entry, -1);
else
i++;
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}
pos = (pos - delta) % i;
gtk_box_reorder_child (GTK_BOX (parent), ch->impl, pos);
}
static void
cv_tabs_move_family (chan *ch, int delta)
{
int i, pos = 0;
GList *list;
GtkWidget *box = NULL;
/* find position of tab's family */
i = 0;
for (list = gtk_container_get_children (GTK_CONTAINER (((tabview *)ch->cv)->inner)); list; list = list->next)
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{
GtkWidget *child_entry;
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void *fam;
child_entry = list->data;
fam = g_object_get_data (G_OBJECT (child_entry), "f");
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if (fam == ch->family)
{
box = child_entry;
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pos = i;
}
i++;
}
pos = (pos - delta) % i;
gtk_box_reorder_child (GTK_BOX (gtk_widget_get_parent(box)), box, pos);
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}
static void
cv_tabs_cleanup (chanview *cv)
{
if (cv->box)
gtk_widget_destroy (((tabview *)cv)->outer);
}
static void
cv_tabs_set_color (chan *ch, PangoAttrList *list)
{
gtk_label_set_attributes (GTK_LABEL (gtk_bin_get_child (GTK_BIN (ch->impl))), list);
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}
static void
cv_tabs_rename (chan *ch, char *name)
{
PangoAttrList *attr;
GtkWidget *tab = ch->impl;
attr = gtk_label_get_attributes (GTK_LABEL (gtk_bin_get_child (GTK_BIN (tab))));
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if (attr)
pango_attr_list_ref (attr);
gtk_button_set_label (GTK_BUTTON (tab), name);
gtk_widget_queue_resize (gtk_widget_get_parent(gtk_widget_get_parent(gtk_widget_get_parent(tab))));
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if (attr)
{
gtk_label_set_attributes (GTK_LABEL (gtk_bin_get_child (GTK_BIN (tab))), attr);
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pango_attr_list_unref (attr);
}
}
static gboolean
cv_tabs_is_collapsed (chan *ch)
{
return FALSE;
}
static chan *
cv_tabs_get_parent (chan *ch)
{
return NULL;
}