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gtk2/gtk/gtktoolitemgroup.c
Tristan Van Berkom 1523509467 Removed size_request from GtkToolItemGroup 
Ofcourse GtkToolPalette needs real migration to height-for-width
apis, this patch just removes the need for the size_request
signal and vfunc.
2010-10-28 15:16:06 +09:00

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/* GtkToolPalette -- A tool palette with categories and DnD support
* Copyright (C) 2008 Openismus GmbH
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors:
* Mathias Hasselmann
* Jan Arne Petersen
*/
#include "config.h"
#include "gtktoolpaletteprivate.h"
#include <gtk/gtk.h>
#include <math.h>
#include <string.h>
#include "gtkprivate.h"
#include "gtkintl.h"
#define ANIMATION_TIMEOUT 50
#define ANIMATION_DURATION (ANIMATION_TIMEOUT * 4)
#define DEFAULT_ANIMATION_STATE TRUE
#define DEFAULT_EXPANDER_SIZE 16
#define DEFAULT_HEADER_SPACING 2
#define DEFAULT_LABEL ""
#define DEFAULT_COLLAPSED FALSE
#define DEFAULT_ELLIPSIZE PANGO_ELLIPSIZE_NONE
/**
* SECTION:gtktoolitemgroup
* @Short_description: A sub container used in a tool palette
* @Title: GtkToolItemGroup
*
* A #GtkToolItemGroup is used together with #GtkToolPalette to add
* #GtkToolItem<!-- -->s to a palette like container with different
* categories and drag and drop support.
*
* Since: 2.20
*/
enum
{
PROP_NONE,
PROP_LABEL,
PROP_LABEL_WIDGET,
PROP_COLLAPSED,
PROP_ELLIPSIZE,
PROP_RELIEF
};
enum
{
CHILD_PROP_NONE,
CHILD_PROP_HOMOGENEOUS,
CHILD_PROP_EXPAND,
CHILD_PROP_FILL,
CHILD_PROP_NEW_ROW,
CHILD_PROP_POSITION,
};
typedef struct _GtkToolItemGroupChild GtkToolItemGroupChild;
struct _GtkToolItemGroupPrivate
{
GtkWidget *header;
GtkWidget *label_widget;
GList *children;
gboolean animation;
gint64 animation_start;
GSource *animation_timeout;
GtkExpanderStyle expander_style;
gint expander_size;
gint header_spacing;
PangoEllipsizeMode ellipsize;
gulong focus_set_id;
GtkWidget *toplevel;
GtkSettings *settings;
gulong settings_connection;
guint collapsed : 1;
};
struct _GtkToolItemGroupChild
{
GtkToolItem *item;
guint homogeneous : 1;
guint expand : 1;
guint fill : 1;
guint new_row : 1;
};
static void gtk_tool_item_group_tool_shell_init (GtkToolShellIface *iface);
G_DEFINE_TYPE_WITH_CODE (GtkToolItemGroup, gtk_tool_item_group, GTK_TYPE_CONTAINER,
G_IMPLEMENT_INTERFACE (GTK_TYPE_TOOL_SHELL, gtk_tool_item_group_tool_shell_init));
static GtkWidget*
gtk_tool_item_group_get_alignment (GtkToolItemGroup *group)
{
return gtk_bin_get_child (GTK_BIN (group->priv->header));
}
static GtkOrientation
gtk_tool_item_group_get_orientation (GtkToolShell *shell)
{
GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (shell));
if (GTK_IS_TOOL_PALETTE (parent))
return gtk_orientable_get_orientation (GTK_ORIENTABLE (parent));
return GTK_ORIENTATION_VERTICAL;
}
static GtkToolbarStyle
gtk_tool_item_group_get_style (GtkToolShell *shell)
{
GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (shell));
if (GTK_IS_TOOL_PALETTE (parent))
return gtk_tool_palette_get_style (GTK_TOOL_PALETTE (parent));
return GTK_TOOLBAR_ICONS;
}
static GtkIconSize
gtk_tool_item_group_get_icon_size (GtkToolShell *shell)
{
GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (shell));
if (GTK_IS_TOOL_PALETTE (parent))
return gtk_tool_palette_get_icon_size (GTK_TOOL_PALETTE (parent));
return GTK_ICON_SIZE_SMALL_TOOLBAR;
}
static PangoEllipsizeMode
gtk_tool_item_group_get_ellipsize_mode (GtkToolShell *shell)
{
return GTK_TOOL_ITEM_GROUP (shell)->priv->ellipsize;
}
static gfloat
gtk_tool_item_group_get_text_alignment (GtkToolShell *shell)
{
if (GTK_TOOLBAR_TEXT == gtk_tool_item_group_get_style (shell) ||
GTK_TOOLBAR_BOTH_HORIZ == gtk_tool_item_group_get_style (shell))
return 0.0;
return 0.5;
}
static GtkOrientation
gtk_tool_item_group_get_text_orientation (GtkToolShell *shell)
{
return GTK_ORIENTATION_HORIZONTAL;
}
static GtkSizeGroup *
gtk_tool_item_group_get_text_size_group (GtkToolShell *shell)
{
GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (shell));
if (GTK_IS_TOOL_PALETTE (parent))
return _gtk_tool_palette_get_size_group (GTK_TOOL_PALETTE (parent));
return NULL;
}
static void
animation_change_notify (GtkToolItemGroup *group)
{
GtkSettings *settings = group->priv->settings;
gboolean animation;
if (settings)
g_object_get (settings,
"gtk-enable-animations", &animation,
NULL);
else
animation = DEFAULT_ANIMATION_STATE;
group->priv->animation = animation;
}
static void
gtk_tool_item_group_settings_change_notify (GtkSettings *settings,
const GParamSpec *pspec,
GtkToolItemGroup *group)
{
if (strcmp (pspec->name, "gtk-enable-animations") == 0)
animation_change_notify (group);
}
static void
gtk_tool_item_group_screen_changed (GtkWidget *widget,
GdkScreen *previous_screen)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (widget);
GtkToolItemGroupPrivate* priv = group->priv;
GtkSettings *old_settings = priv->settings;
GtkSettings *settings;
if (gtk_widget_has_screen (GTK_WIDGET (group)))
settings = gtk_widget_get_settings (GTK_WIDGET (group));
else
settings = NULL;
if (settings == old_settings)
return;
if (old_settings)
{
g_signal_handler_disconnect (old_settings, priv->settings_connection);
g_object_unref (old_settings);
}
if (settings)
{
priv->settings_connection =
g_signal_connect (settings, "notify",
G_CALLBACK (gtk_tool_item_group_settings_change_notify),
group);
priv->settings = g_object_ref (settings);
}
else
priv->settings = NULL;
animation_change_notify (group);
}
static void
gtk_tool_item_group_tool_shell_init (GtkToolShellIface *iface)
{
iface->get_icon_size = gtk_tool_item_group_get_icon_size;
iface->get_orientation = gtk_tool_item_group_get_orientation;
iface->get_style = gtk_tool_item_group_get_style;
iface->get_text_alignment = gtk_tool_item_group_get_text_alignment;
iface->get_text_orientation = gtk_tool_item_group_get_text_orientation;
iface->get_text_size_group = gtk_tool_item_group_get_text_size_group;
iface->get_ellipsize_mode = gtk_tool_item_group_get_ellipsize_mode;
}
static gboolean
gtk_tool_item_group_header_draw_cb (GtkWidget *widget,
cairo_t *cr,
gpointer data)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (data);
GtkToolItemGroupPrivate* priv = group->priv;
GtkExpanderStyle expander_style;
GtkOrientation orientation;
gint x, y, width, height;
GtkTextDirection direction;
orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
expander_style = priv->expander_style;
direction = gtk_widget_get_direction (widget);
width = gtk_widget_get_allocated_width (widget);
height = gtk_widget_get_allocated_height (widget);
if (GTK_ORIENTATION_VERTICAL == orientation)
{
if (GTK_TEXT_DIR_RTL == direction)
x = width - priv->expander_size / 2;
else
x = priv->expander_size / 2;
y = height / 2;
}
else
{
x = width / 2;
y = priv->expander_size / 2;
/* Unfortunatly gtk_paint_expander() doesn't support rotated drawing
* modes. Luckily the following shady arithmetics produce the desired
* result. */
expander_style = GTK_EXPANDER_EXPANDED - expander_style;
}
gtk_paint_expander (gtk_widget_get_style (widget),
cr,
gtk_widget_get_state (priv->header),
GTK_WIDGET (group),
"tool-palette-header", x, y,
expander_style);
return FALSE;
}
static void
gtk_tool_item_group_header_clicked_cb (GtkButton *button,
gpointer data)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (data);
GtkToolItemGroupPrivate* priv = group->priv;
GtkWidget *parent = gtk_widget_get_parent (data);
if (priv->collapsed ||
!GTK_IS_TOOL_PALETTE (parent) ||
!gtk_tool_palette_get_exclusive (GTK_TOOL_PALETTE (parent), data))
gtk_tool_item_group_set_collapsed (group, !priv->collapsed);
}
static void
gtk_tool_item_group_header_adjust_style (GtkToolItemGroup *group)
{
GtkWidget *alignment = gtk_tool_item_group_get_alignment (group);
GtkWidget *label_widget = gtk_bin_get_child (GTK_BIN (alignment));
GtkWidget *widget = GTK_WIDGET (group);
GtkToolItemGroupPrivate* priv = group->priv;
gint dx = 0, dy = 0;
GtkTextDirection direction = gtk_widget_get_direction (widget);
gtk_widget_style_get (widget,
"header-spacing", &(priv->header_spacing),
"expander-size", &(priv->expander_size),
NULL);
gtk_widget_set_size_request (alignment, -1, priv->expander_size);
switch (gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group)))
{
case GTK_ORIENTATION_HORIZONTAL:
dy = priv->header_spacing + priv->expander_size;
if (GTK_IS_LABEL (label_widget))
{
gtk_label_set_ellipsize (GTK_LABEL (label_widget), PANGO_ELLIPSIZE_NONE);
if (GTK_TEXT_DIR_RTL == direction)
gtk_label_set_angle (GTK_LABEL (label_widget), -90);
else
gtk_label_set_angle (GTK_LABEL (label_widget), 90);
}
break;
case GTK_ORIENTATION_VERTICAL:
dx = priv->header_spacing + priv->expander_size;
if (GTK_IS_LABEL (label_widget))
{
gtk_label_set_ellipsize (GTK_LABEL (label_widget), priv->ellipsize);
gtk_label_set_angle (GTK_LABEL (label_widget), 0);
}
break;
}
gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), dy, 0, dx, 0);
}
static void
gtk_tool_item_group_init (GtkToolItemGroup *group)
{
GtkWidget *alignment;
GtkToolItemGroupPrivate* priv;
gtk_widget_set_redraw_on_allocate (GTK_WIDGET (group), FALSE);
group->priv = priv = G_TYPE_INSTANCE_GET_PRIVATE (group,
GTK_TYPE_TOOL_ITEM_GROUP,
GtkToolItemGroupPrivate);
priv->children = NULL;
priv->header_spacing = DEFAULT_HEADER_SPACING;
priv->expander_size = DEFAULT_EXPANDER_SIZE;
priv->expander_style = GTK_EXPANDER_EXPANDED;
priv->label_widget = gtk_label_new (NULL);
gtk_misc_set_alignment (GTK_MISC (priv->label_widget), 0.0, 0.5);
alignment = gtk_alignment_new (0.5, 0.5, 1.0, 1.0);
gtk_container_add (GTK_CONTAINER (alignment), priv->label_widget);
gtk_widget_show_all (alignment);
gtk_widget_push_composite_child ();
priv->header = gtk_button_new ();
gtk_widget_set_composite_name (priv->header, "header");
gtk_widget_pop_composite_child ();
g_object_ref_sink (priv->header);
gtk_button_set_focus_on_click (GTK_BUTTON (priv->header), FALSE);
gtk_container_add (GTK_CONTAINER (priv->header), alignment);
gtk_widget_set_parent (priv->header, GTK_WIDGET (group));
gtk_tool_item_group_header_adjust_style (group);
g_signal_connect_after (alignment, "draw",
G_CALLBACK (gtk_tool_item_group_header_draw_cb),
group);
g_signal_connect (priv->header, "clicked",
G_CALLBACK (gtk_tool_item_group_header_clicked_cb),
group);
}
static void
gtk_tool_item_group_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (object);
switch (prop_id)
{
case PROP_LABEL:
gtk_tool_item_group_set_label (group, g_value_get_string (value));
break;
case PROP_LABEL_WIDGET:
gtk_tool_item_group_set_label_widget (group, g_value_get_object (value));
break;
case PROP_COLLAPSED:
gtk_tool_item_group_set_collapsed (group, g_value_get_boolean (value));
break;
case PROP_ELLIPSIZE:
gtk_tool_item_group_set_ellipsize (group, g_value_get_enum (value));
break;
case PROP_RELIEF:
gtk_tool_item_group_set_header_relief (group, g_value_get_enum(value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_tool_item_group_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (object);
switch (prop_id)
{
case PROP_LABEL:
g_value_set_string (value, gtk_tool_item_group_get_label (group));
break;
case PROP_LABEL_WIDGET:
g_value_set_object (value,
gtk_tool_item_group_get_label_widget (group));
break;
case PROP_COLLAPSED:
g_value_set_boolean (value, gtk_tool_item_group_get_collapsed (group));
break;
case PROP_ELLIPSIZE:
g_value_set_enum (value, gtk_tool_item_group_get_ellipsize (group));
break;
case PROP_RELIEF:
g_value_set_enum (value, gtk_tool_item_group_get_header_relief (group));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_tool_item_group_finalize (GObject *object)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (object);
if (group->priv->children)
{
g_list_free (group->priv->children);
group->priv->children = NULL;
}
G_OBJECT_CLASS (gtk_tool_item_group_parent_class)->finalize (object);
}
static void
gtk_tool_item_group_dispose (GObject *object)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (object);
GtkToolItemGroupPrivate* priv = group->priv;
if (priv->toplevel)
{
/* disconnect focus tracking handler */
g_signal_handler_disconnect (priv->toplevel,
priv->focus_set_id);
priv->focus_set_id = 0;
priv->toplevel = NULL;
}
G_OBJECT_CLASS (gtk_tool_item_group_parent_class)->dispose (object);
}
static void
gtk_tool_item_group_get_item_size (GtkToolItemGroup *group,
GtkRequisition *item_size,
gboolean homogeneous_only,
gint *requested_rows)
{
GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (group));
if (GTK_IS_TOOL_PALETTE (parent))
_gtk_tool_palette_get_item_size (GTK_TOOL_PALETTE (parent), item_size, homogeneous_only, requested_rows);
else
_gtk_tool_item_group_item_size_request (group, item_size, homogeneous_only, requested_rows);
}
static void
gtk_tool_item_group_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (widget);
GtkToolItemGroupPrivate* priv = group->priv;
GtkOrientation orientation;
GtkRequisition item_size;
gint requested_rows;
guint border_width;
if (priv->children && gtk_tool_item_group_get_label_widget (group))
{
gtk_widget_get_preferred_size (priv->header,
requisition, NULL);
gtk_widget_show (priv->header);
}
else
{
requisition->width = requisition->height = 0;
gtk_widget_hide (priv->header);
}
gtk_tool_item_group_get_item_size (group, &item_size, FALSE, &requested_rows);
orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
if (GTK_ORIENTATION_VERTICAL == orientation)
requisition->width = MAX (requisition->width, item_size.width);
else
requisition->height = MAX (requisition->height, item_size.height * requested_rows);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
requisition->width += border_width * 2;
requisition->height += border_width * 2;
}
static void
gtk_tool_item_group_get_preferred_width (GtkWidget *widget,
gint *minimum,
gint *natural)
{
GtkRequisition requisition;
gtk_tool_item_group_size_request (widget, &requisition);
*minimum = *natural = requisition.width;
}
static void
gtk_tool_item_group_get_preferred_height (GtkWidget *widget,
gint *minimum,
gint *natural)
{
GtkRequisition requisition;
gtk_tool_item_group_size_request (widget, &requisition);
*minimum = *natural = requisition.height;
}
static gboolean
gtk_tool_item_group_is_item_visible (GtkToolItemGroup *group,
GtkToolItemGroupChild *child)
{
GtkToolbarStyle style;
GtkOrientation orientation;
orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
style = gtk_tool_shell_get_style (GTK_TOOL_SHELL (group));
/* horizontal tool palettes with text style support only homogeneous items */
if (!child->homogeneous &&
GTK_ORIENTATION_HORIZONTAL == orientation &&
GTK_TOOLBAR_TEXT == style)
return FALSE;
return
(gtk_widget_get_visible (GTK_WIDGET (child->item))) &&
(GTK_ORIENTATION_VERTICAL == orientation ?
gtk_tool_item_get_visible_vertical (child->item) :
gtk_tool_item_get_visible_horizontal (child->item));
}
static inline unsigned
udiv (unsigned x,
unsigned y)
{
return (x + y - 1) / y;
}
static void
gtk_tool_item_group_real_size_query (GtkWidget *widget,
GtkAllocation *allocation,
GtkRequisition *inquery)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (widget);
GtkToolItemGroupPrivate* priv = group->priv;
GtkRequisition item_size;
GtkAllocation item_area;
GtkOrientation orientation;
GtkToolbarStyle style;
gint min_rows;
guint border_width;
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
style = gtk_tool_shell_get_style (GTK_TOOL_SHELL (group));
/* figure out the size of homogeneous items */
gtk_tool_item_group_get_item_size (group, &item_size, TRUE, &min_rows);
if (GTK_ORIENTATION_VERTICAL == orientation)
item_size.width = MIN (item_size.width, allocation->width);
else
item_size.height = MIN (item_size.height, allocation->height);
item_size.width = MAX (item_size.width, 1);
item_size.height = MAX (item_size.height, 1);
item_area.width = 0;
item_area.height = 0;
/* figure out the required columns (n_columns) and rows (n_rows) to place all items */
if (!priv->collapsed || !priv->animation || priv->animation_timeout)
{
guint n_columns;
gint n_rows;
GList *it;
if (GTK_ORIENTATION_VERTICAL == orientation)
{
gboolean new_row = FALSE;
gint row = -1;
guint col = 0;
item_area.width = allocation->width - 2 * border_width;
n_columns = MAX (item_area.width / item_size.width, 1);
/* calculate required rows for n_columns columns */
for (it = priv->children; it != NULL; it = it->next)
{
GtkToolItemGroupChild *child = it->data;
if (!gtk_tool_item_group_is_item_visible (group, child))
continue;
if (new_row || child->new_row)
{
new_row = FALSE;
row++;
col = 0;
}
if (child->expand)
new_row = TRUE;
if (child->homogeneous)
{
col++;
if (col >= n_columns)
new_row = TRUE;
}
else
{
GtkRequisition req = {0, 0};
guint width;
gtk_widget_get_preferred_size (GTK_WIDGET (child->item),
&req, NULL);
width = udiv (req.width, item_size.width);
col += width;
if (col > n_columns)
row++;
col = width;
if (col >= n_columns)
new_row = TRUE;
}
}
n_rows = row + 2;
}
else
{
guint *row_min_width;
gint row = -1;
gboolean new_row = TRUE;
guint col = 0, min_col, max_col = 0, all_items = 0;
gint i;
item_area.height = allocation->height - 2 * border_width;
n_rows = MAX (item_area.height / item_size.height, min_rows);
row_min_width = g_new0 (guint, n_rows);
/* calculate minimal and maximal required cols and minimal required rows */
for (it = priv->children; it != NULL; it = it->next)
{
GtkToolItemGroupChild *child = it->data;
if (!gtk_tool_item_group_is_item_visible (group, child))
continue;
if (new_row || child->new_row)
{
new_row = FALSE;
row++;
col = 0;
row_min_width[row] = 1;
}
if (child->expand)
new_row = TRUE;
if (child->homogeneous)
{
col++;
all_items++;
}
else
{
GtkRequisition req = {0, 0};
guint width;
gtk_widget_get_preferred_size (GTK_WIDGET (child->item),
&req, NULL);
width = udiv (req.width, item_size.width);
col += width;
all_items += width;
row_min_width[row] = MAX (row_min_width[row], width);
}
max_col = MAX (max_col, col);
}
/* calculate minimal required cols */
min_col = udiv (all_items, n_rows);
for (i = 0; i <= row; i++)
{
min_col = MAX (min_col, row_min_width[i]);
}
/* simple linear search for minimal required columns for the given maximal number of rows (n_rows) */
for (n_columns = min_col; n_columns < max_col; n_columns ++)
{
new_row = TRUE;
row = -1;
/* calculate required rows for n_columns columns */
for (it = priv->children; it != NULL; it = it->next)
{
GtkToolItemGroupChild *child = it->data;
if (!gtk_tool_item_group_is_item_visible (group, child))
continue;
if (new_row || child->new_row)
{
new_row = FALSE;
row++;
col = 0;
}
if (child->expand)
new_row = TRUE;
if (child->homogeneous)
{
col++;
if (col >= n_columns)
new_row = TRUE;
}
else
{
GtkRequisition req = {0, 0};
guint width;
gtk_widget_get_preferred_size (GTK_WIDGET (child->item),
&req, NULL);
width = udiv (req.width, item_size.width);
col += width;
if (col > n_columns)
row++;
col = width;
if (col >= n_columns)
new_row = TRUE;
}
}
if (row < n_rows)
break;
}
}
item_area.width = item_size.width * n_columns;
item_area.height = item_size.height * n_rows;
}
inquery->width = 0;
inquery->height = 0;
/* figure out header widget size */
if (gtk_widget_get_visible (priv->header))
{
GtkRequisition child_requisition;
gtk_widget_get_preferred_size (priv->header,
&child_requisition, NULL);
if (GTK_ORIENTATION_VERTICAL == orientation)
inquery->height += child_requisition.height;
else
inquery->width += child_requisition.width;
}
/* report effective widget size */
inquery->width += item_area.width + 2 * border_width;
inquery->height += item_area.height + 2 * border_width;
}
static void
gtk_tool_item_group_real_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (widget);
GtkToolItemGroupPrivate* priv = group->priv;
GtkRequisition child_requisition;
GtkAllocation child_allocation;
GtkRequisition item_size;
GtkAllocation item_area;
GtkOrientation orientation;
GtkToolbarStyle style;
GList *it;
gint n_columns, n_rows = 1;
gint min_rows;
guint border_width;
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
GtkTextDirection direction = gtk_widget_get_direction (widget);
orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
style = gtk_tool_shell_get_style (GTK_TOOL_SHELL (group));
/* chain up */
GTK_WIDGET_CLASS (gtk_tool_item_group_parent_class)->size_allocate (widget, allocation);
child_allocation.x = border_width;
child_allocation.y = border_width;
/* place the header widget */
if (gtk_widget_get_visible (priv->header))
{
gtk_widget_get_preferred_size (priv->header,
&child_requisition, NULL);
if (GTK_ORIENTATION_VERTICAL == orientation)
{
child_allocation.width = allocation->width;
child_allocation.height = child_requisition.height;
}
else
{
child_allocation.width = child_requisition.width;
child_allocation.height = allocation->height;
if (GTK_TEXT_DIR_RTL == direction)
child_allocation.x = allocation->width - border_width - child_allocation.width;
}
gtk_widget_size_allocate (priv->header, &child_allocation);
if (GTK_ORIENTATION_VERTICAL == orientation)
child_allocation.y += child_allocation.height;
else if (GTK_TEXT_DIR_RTL != direction)
child_allocation.x += child_allocation.width;
else
child_allocation.x = border_width;
}
else
child_requisition.width = child_requisition.height = 0;
/* figure out the size of homogeneous items */
gtk_tool_item_group_get_item_size (group, &item_size, TRUE, &min_rows);
item_size.width = MAX (item_size.width, 1);
item_size.height = MAX (item_size.height, 1);
/* figure out the available columns and size of item_area */
if (GTK_ORIENTATION_VERTICAL == orientation)
{
item_size.width = MIN (item_size.width, allocation->width);
item_area.width = allocation->width - 2 * border_width;
item_area.height = allocation->height - 2 * border_width - child_requisition.height;
n_columns = MAX (item_area.width / item_size.width, 1);
item_size.width = item_area.width / n_columns;
}
else
{
item_size.height = MIN (item_size.height, allocation->height);
item_area.width = allocation->width - 2 * border_width - child_requisition.width;
item_area.height = allocation->height - 2 * border_width;
n_columns = MAX (item_area.width / item_size.width, 1);
n_rows = MAX (item_area.height / item_size.height, min_rows);
item_size.height = item_area.height / n_rows;
}
item_area.x = child_allocation.x;
item_area.y = child_allocation.y;
/* when expanded or in transition, place the tool items in a grid like layout */
if (!priv->collapsed || !priv->animation || priv->animation_timeout)
{
gint col = 0, row = 0;
for (it = priv->children; it != NULL; it = it->next)
{
GtkToolItemGroupChild *child = it->data;
gint col_child;
if (!gtk_tool_item_group_is_item_visible (group, child))
{
gtk_widget_set_child_visible (GTK_WIDGET (child->item), FALSE);
continue;
}
/* for non homogeneous widgets request the required size */
child_requisition.width = 0;
if (!child->homogeneous)
{
gtk_widget_get_preferred_size (GTK_WIDGET (child->item),
&child_requisition, NULL);
child_requisition.width = MIN (child_requisition.width, item_area.width);
}
/* select next row if at end of row */
if (col > 0 && (child->new_row || (col * item_size.width) + MAX (child_requisition.width, item_size.width) > item_area.width))
{
row++;
col = 0;
child_allocation.y += child_allocation.height;
}
col_child = col;
/* calculate the position and size of the item */
if (!child->homogeneous)
{
gint col_width;
gint width;
if (!child->expand)
col_width = udiv (child_requisition.width, item_size.width);
else
col_width = n_columns - col;
width = col_width * item_size.width;
if (GTK_TEXT_DIR_RTL == direction)
col_child = (n_columns - col - col_width);
if (child->fill)
{
child_allocation.x = item_area.x + col_child * item_size.width;
child_allocation.width = width;
}
else
{
child_allocation.x =
(item_area.x + col_child * item_size.width +
(width - child_requisition.width) / 2);
child_allocation.width = child_requisition.width;
}
col += col_width;
}
else
{
if (GTK_TEXT_DIR_RTL == direction)
col_child = (n_columns - col - 1);
child_allocation.x = item_area.x + col_child * item_size.width;
child_allocation.width = item_size.width;
col++;
}
child_allocation.height = item_size.height;
gtk_widget_size_allocate (GTK_WIDGET (child->item), &child_allocation);
gtk_widget_set_child_visible (GTK_WIDGET (child->item), TRUE);
}
child_allocation.y += item_size.height;
}
/* or just hide all items, when collapsed */
else
{
for (it = priv->children; it != NULL; it = it->next)
{
GtkToolItemGroupChild *child = it->data;
gtk_widget_set_child_visible (GTK_WIDGET (child->item), FALSE);
}
}
}
static void
gtk_tool_item_group_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
gtk_tool_item_group_real_size_allocate (widget, allocation);
if (gtk_widget_get_mapped (widget))
gdk_window_invalidate_rect (gtk_widget_get_window (widget), NULL, FALSE);
}
static void
gtk_tool_item_group_set_focus_cb (GtkWidget *window,
GtkWidget *widget,
gpointer user_data)
{
GtkAdjustment *adjustment;
GtkAllocation allocation, p_allocation;
GtkWidget *p;
/* Find this group's parent widget in the focused widget's anchestry. */
for (p = widget; p; p = gtk_widget_get_parent (p))
if (p == user_data)
{
p = gtk_widget_get_parent (p);
break;
}
if (GTK_IS_TOOL_PALETTE (p))
{
/* Check that the focused widgets is fully visible within
* the group's parent widget and make it visible otherwise. */
adjustment = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (p));
if (adjustment)
{
int y;
gtk_widget_get_allocation (widget, &allocation);
gtk_widget_get_allocation (p, &p_allocation);
/* Handle vertical adjustment. */
if (gtk_widget_translate_coordinates
(widget, p, 0, 0, NULL, &y) && y < 0)
{
y += adjustment->value;
gtk_adjustment_clamp_page (adjustment, y, y + allocation.height);
}
else if (gtk_widget_translate_coordinates (widget, p, 0, allocation.height, NULL, &y) &&
y > p_allocation.height)
{
y += adjustment->value;
gtk_adjustment_clamp_page (adjustment, y - allocation.height, y);
}
}
adjustment = gtk_scrollable_get_hadjustment (GTK_SCROLLABLE (p));
if (adjustment)
{
int x;
gtk_widget_get_allocation (widget, &allocation);
gtk_widget_get_allocation (p, &p_allocation);
/* Handle horizontal adjustment. */
if (gtk_widget_translate_coordinates
(widget, p, 0, 0, &x, NULL) && x < 0)
{
x += adjustment->value;
gtk_adjustment_clamp_page (adjustment, x, x + allocation.width);
}
else if (gtk_widget_translate_coordinates (widget, p, allocation.width, 0, &x, NULL) &&
x > p_allocation.width)
{
x += adjustment->value;
gtk_adjustment_clamp_page (adjustment, x - allocation.width, x);
}
return;
}
}
}
static void
gtk_tool_item_group_set_toplevel_window (GtkToolItemGroup *group,
GtkWidget *toplevel)
{
GtkToolItemGroupPrivate* priv = group->priv;
if (toplevel != priv->toplevel)
{
if (priv->toplevel)
{
/* Disconnect focus tracking handler. */
g_signal_handler_disconnect (priv->toplevel,
priv->focus_set_id);
priv->focus_set_id = 0;
priv->toplevel = NULL;
}
if (toplevel)
{
/* Install focus tracking handler. We connect to the window's
* set-focus signal instead of connecting to the focus signal of
* each child to:
*
* 1) Reduce the number of signal handlers used.
* 2) Avoid special handling for group headers.
* 3) Catch focus grabs not only for direct children,
* but also for nested widgets.
*/
priv->focus_set_id =
g_signal_connect (toplevel, "set-focus",
G_CALLBACK (gtk_tool_item_group_set_focus_cb),
group);
priv->toplevel = toplevel;
}
}
}
static void
gtk_tool_item_group_realize (GtkWidget *widget)
{
GtkAllocation allocation;
GtkWidget *toplevel_window;
GdkWindow *window;
GdkWindowAttr attributes;
GdkDisplay *display;
gint attributes_mask;
guint border_width;
gtk_widget_set_realized (widget, TRUE);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
gtk_widget_get_allocation (widget, &allocation);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = allocation.x + border_width;
attributes.y = allocation.y + border_width;
attributes.width = allocation.width - border_width * 2;
attributes.height = allocation.height - border_width * 2;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.event_mask = gtk_widget_get_events (widget)
| GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK
| GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
| GDK_BUTTON_MOTION_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gtk_widget_set_window (widget, window);
display = gdk_window_get_display (window);
if (gdk_display_supports_composite (display))
gdk_window_set_composited (window, TRUE);
gdk_window_set_user_data (window, widget);
gtk_widget_style_attach (widget);
gtk_style_set_background (gtk_widget_get_style (widget),
window, GTK_STATE_NORMAL);
gtk_container_forall (GTK_CONTAINER (widget),
(GtkCallback) gtk_widget_set_parent_window,
window);
gtk_widget_queue_resize_no_redraw (widget);
toplevel_window = gtk_widget_get_ancestor (widget, GTK_TYPE_WINDOW);
gtk_tool_item_group_set_toplevel_window (GTK_TOOL_ITEM_GROUP (widget),
toplevel_window);
}
static void
gtk_tool_item_group_unrealize (GtkWidget *widget)
{
gtk_tool_item_group_set_toplevel_window (GTK_TOOL_ITEM_GROUP (widget), NULL);
GTK_WIDGET_CLASS (gtk_tool_item_group_parent_class)->unrealize (widget);
}
static void
gtk_tool_item_group_style_set (GtkWidget *widget,
GtkStyle *previous_style)
{
gtk_tool_item_group_header_adjust_style (GTK_TOOL_ITEM_GROUP (widget));
GTK_WIDGET_CLASS (gtk_tool_item_group_parent_class)->style_set (widget, previous_style);
}
static void
gtk_tool_item_group_add (GtkContainer *container,
GtkWidget *widget)
{
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (container));
g_return_if_fail (GTK_IS_TOOL_ITEM (widget));
gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (container),
GTK_TOOL_ITEM (widget), -1);
}
static void
gtk_tool_item_group_remove (GtkContainer *container,
GtkWidget *child)
{
GtkToolItemGroup *group;
GtkToolItemGroupPrivate* priv;
GList *it;
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (container));
group = GTK_TOOL_ITEM_GROUP (container);
priv = group->priv;
for (it = priv->children; it != NULL; it = it->next)
{
GtkToolItemGroupChild *child_info = it->data;
if ((GtkWidget *)child_info->item == child)
{
g_object_unref (child);
gtk_widget_unparent (child);
g_free (child_info);
priv->children = g_list_delete_link (priv->children, it);
gtk_widget_queue_resize (GTK_WIDGET (container));
break;
}
}
}
static void
gtk_tool_item_group_forall (GtkContainer *container,
gboolean internals,
GtkCallback callback,
gpointer callback_data)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (container);
GtkToolItemGroupPrivate* priv = group->priv;
GList *children;
if (internals && priv->header)
callback (priv->header, callback_data);
children = priv->children;
while (children)
{
GtkToolItemGroupChild *child = children->data;
children = children->next; /* store pointer before call to callback
because the child pointer is invalid if the
child->item is removed from the item group
in callback */
callback (GTK_WIDGET (child->item), callback_data);
}
}
static GType
gtk_tool_item_group_child_type (GtkContainer *container)
{
return GTK_TYPE_TOOL_ITEM;
}
static GtkToolItemGroupChild *
gtk_tool_item_group_get_child (GtkToolItemGroup *group,
GtkToolItem *item,
gint *position,
GList **link)
{
guint i;
GList *it;
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), NULL);
g_return_val_if_fail (GTK_IS_TOOL_ITEM (item), NULL);
for (it = group->priv->children, i = 0; it != NULL; it = it->next, ++i)
{
GtkToolItemGroupChild *child = it->data;
if (child->item == item)
{
if (position)
*position = i;
if (link)
*link = it;
return child;
}
}
return NULL;
}
static void
gtk_tool_item_group_get_item_packing (GtkToolItemGroup *group,
GtkToolItem *item,
gboolean *homogeneous,
gboolean *expand,
gboolean *fill,
gboolean *new_row)
{
GtkToolItemGroupChild *child;
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
g_return_if_fail (GTK_IS_TOOL_ITEM (item));
child = gtk_tool_item_group_get_child (group, item, NULL, NULL);
if (!child)
return;
if (expand)
*expand = child->expand;
if (homogeneous)
*homogeneous = child->homogeneous;
if (fill)
*fill = child->fill;
if (new_row)
*new_row = child->new_row;
}
static void
gtk_tool_item_group_set_item_packing (GtkToolItemGroup *group,
GtkToolItem *item,
gboolean homogeneous,
gboolean expand,
gboolean fill,
gboolean new_row)
{
GtkToolItemGroupChild *child;
gboolean changed = FALSE;
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
g_return_if_fail (GTK_IS_TOOL_ITEM (item));
child = gtk_tool_item_group_get_child (group, item, NULL, NULL);
if (!child)
return;
gtk_widget_freeze_child_notify (GTK_WIDGET (item));
if (child->homogeneous != homogeneous)
{
child->homogeneous = homogeneous;
changed = TRUE;
gtk_widget_child_notify (GTK_WIDGET (item), "homogeneous");
}
if (child->expand != expand)
{
child->expand = expand;
changed = TRUE;
gtk_widget_child_notify (GTK_WIDGET (item), "expand");
}
if (child->fill != fill)
{
child->fill = fill;
changed = TRUE;
gtk_widget_child_notify (GTK_WIDGET (item), "fill");
}
if (child->new_row != new_row)
{
child->new_row = new_row;
changed = TRUE;
gtk_widget_child_notify (GTK_WIDGET (item), "new-row");
}
gtk_widget_thaw_child_notify (GTK_WIDGET (item));
if (changed
&& gtk_widget_get_visible (GTK_WIDGET (group))
&& gtk_widget_get_visible (GTK_WIDGET (item)))
gtk_widget_queue_resize (GTK_WIDGET (group));
}
static void
gtk_tool_item_group_set_child_property (GtkContainer *container,
GtkWidget *child,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (container);
GtkToolItem *item = GTK_TOOL_ITEM (child);
gboolean homogeneous, expand, fill, new_row;
if (prop_id != CHILD_PROP_POSITION)
gtk_tool_item_group_get_item_packing (group, item,
&homogeneous,
&expand,
&fill,
&new_row);
switch (prop_id)
{
case CHILD_PROP_HOMOGENEOUS:
gtk_tool_item_group_set_item_packing (group, item,
g_value_get_boolean (value),
expand,
fill,
new_row);
break;
case CHILD_PROP_EXPAND:
gtk_tool_item_group_set_item_packing (group, item,
homogeneous,
g_value_get_boolean (value),
fill,
new_row);
break;
case CHILD_PROP_FILL:
gtk_tool_item_group_set_item_packing (group, item,
homogeneous,
expand,
g_value_get_boolean (value),
new_row);
break;
case CHILD_PROP_NEW_ROW:
gtk_tool_item_group_set_item_packing (group, item,
homogeneous,
expand,
fill,
g_value_get_boolean (value));
break;
case CHILD_PROP_POSITION:
gtk_tool_item_group_set_item_position (group, item, g_value_get_int (value));
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, prop_id, pspec);
break;
}
}
static void
gtk_tool_item_group_get_child_property (GtkContainer *container,
GtkWidget *child,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (container);
GtkToolItem *item = GTK_TOOL_ITEM (child);
gboolean homogeneous, expand, fill, new_row;
if (prop_id != CHILD_PROP_POSITION)
gtk_tool_item_group_get_item_packing (group, item,
&homogeneous,
&expand,
&fill,
&new_row);
switch (prop_id)
{
case CHILD_PROP_HOMOGENEOUS:
g_value_set_boolean (value, homogeneous);
break;
case CHILD_PROP_EXPAND:
g_value_set_boolean (value, expand);
break;
case CHILD_PROP_FILL:
g_value_set_boolean (value, fill);
break;
case CHILD_PROP_NEW_ROW:
g_value_set_boolean (value, new_row);
break;
case CHILD_PROP_POSITION:
g_value_set_int (value, gtk_tool_item_group_get_item_position (group, item));
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, prop_id, pspec);
break;
}
}
static void
gtk_tool_item_group_class_init (GtkToolItemGroupClass *cls)
{
GObjectClass *oclass = G_OBJECT_CLASS (cls);
GtkWidgetClass *wclass = GTK_WIDGET_CLASS (cls);
GtkContainerClass *cclass = GTK_CONTAINER_CLASS (cls);
oclass->set_property = gtk_tool_item_group_set_property;
oclass->get_property = gtk_tool_item_group_get_property;
oclass->finalize = gtk_tool_item_group_finalize;
oclass->dispose = gtk_tool_item_group_dispose;
wclass->get_preferred_width = gtk_tool_item_group_get_preferred_width;
wclass->get_preferred_height = gtk_tool_item_group_get_preferred_height;
wclass->size_allocate = gtk_tool_item_group_size_allocate;
wclass->realize = gtk_tool_item_group_realize;
wclass->unrealize = gtk_tool_item_group_unrealize;
wclass->style_set = gtk_tool_item_group_style_set;
wclass->screen_changed = gtk_tool_item_group_screen_changed;
cclass->add = gtk_tool_item_group_add;
cclass->remove = gtk_tool_item_group_remove;
cclass->forall = gtk_tool_item_group_forall;
cclass->child_type = gtk_tool_item_group_child_type;
cclass->set_child_property = gtk_tool_item_group_set_child_property;
cclass->get_child_property = gtk_tool_item_group_get_child_property;
g_object_class_install_property (oclass, PROP_LABEL,
g_param_spec_string ("label",
P_("Label"),
P_("The human-readable title of this item group"),
DEFAULT_LABEL,
GTK_PARAM_READWRITE));
g_object_class_install_property (oclass, PROP_LABEL_WIDGET,
g_param_spec_object ("label-widget",
P_("Label widget"),
P_("A widget to display in place of the usual label"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE));
g_object_class_install_property (oclass, PROP_COLLAPSED,
g_param_spec_boolean ("collapsed",
P_("Collapsed"),
P_("Whether the group has been collapsed and items are hidden"),
DEFAULT_COLLAPSED,
GTK_PARAM_READWRITE));
g_object_class_install_property (oclass, PROP_ELLIPSIZE,
g_param_spec_enum ("ellipsize",
P_("ellipsize"),
P_("Ellipsize for item group headers"),
PANGO_TYPE_ELLIPSIZE_MODE, DEFAULT_ELLIPSIZE,
GTK_PARAM_READWRITE));
g_object_class_install_property (oclass, PROP_RELIEF,
g_param_spec_enum ("header-relief",
P_("Header Relief"),
P_("Relief of the group header button"),
GTK_TYPE_RELIEF_STYLE, GTK_RELIEF_NORMAL,
GTK_PARAM_READWRITE));
gtk_widget_class_install_style_property (wclass,
g_param_spec_int ("expander-size",
P_("Expander Size"),
P_("Size of the expander arrow"),
0,
G_MAXINT,
DEFAULT_EXPANDER_SIZE,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (wclass,
g_param_spec_int ("header-spacing",
P_("Header Spacing"),
P_("Spacing between expander arrow and caption"),
0,
G_MAXINT,
DEFAULT_HEADER_SPACING,
GTK_PARAM_READABLE));
gtk_container_class_install_child_property (cclass, CHILD_PROP_HOMOGENEOUS,
g_param_spec_boolean ("homogeneous",
P_("Homogeneous"),
P_("Whether the item should be the same size as other homogeneous items"),
TRUE,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (cclass, CHILD_PROP_EXPAND,
g_param_spec_boolean ("expand",
P_("Expand"),
P_("Whether the item should receive extra space when the group grows"),
FALSE,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (cclass, CHILD_PROP_FILL,
g_param_spec_boolean ("fill",
P_("Fill"),
P_("Whether the item should fill the available space"),
TRUE,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (cclass, CHILD_PROP_NEW_ROW,
g_param_spec_boolean ("new-row",
P_("New Row"),
P_("Whether the item should start a new row"),
FALSE,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (cclass, CHILD_PROP_POSITION,
g_param_spec_int ("position",
P_("Position"),
P_("Position of the item within this group"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_type_class_add_private (cls, sizeof (GtkToolItemGroupPrivate));
}
/**
* gtk_tool_item_group_new:
* @label: the label of the new group
*
* Creates a new tool item group with label @label.
*
* Returns: a new #GtkToolItemGroup.
*
* Since: 2.20
*/
GtkWidget*
gtk_tool_item_group_new (const gchar *label)
{
return g_object_new (GTK_TYPE_TOOL_ITEM_GROUP, "label", label, NULL);
}
/**
* gtk_tool_item_group_set_label:
* @group: a #GtkToolItemGroup
* @label: the new human-readable label of of the group
*
* Sets the label of the tool item group. The label is displayed in the header
* of the group.
*
* Since: 2.20
*/
void
gtk_tool_item_group_set_label (GtkToolItemGroup *group,
const gchar *label)
{
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
if (!label)
gtk_tool_item_group_set_label_widget (group, NULL);
else
{
GtkWidget *child = gtk_label_new (label);
gtk_widget_show (child);
gtk_tool_item_group_set_label_widget (group, child);
}
g_object_notify (G_OBJECT (group), "label");
}
/**
* gtk_tool_item_group_set_label_widget:
* @group: a #GtkToolItemGroup
* @label_widget: the widget to be displayed in place of the usual label
*
* Sets the label of the tool item group.
* The label widget is displayed in the header of the group, in place
* of the usual label.
*
* Since: 2.20
*/
void
gtk_tool_item_group_set_label_widget (GtkToolItemGroup *group,
GtkWidget *label_widget)
{
GtkToolItemGroupPrivate* priv;
GtkWidget *alignment;
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
g_return_if_fail (label_widget == NULL || GTK_IS_WIDGET (label_widget));
g_return_if_fail (label_widget == NULL || gtk_widget_get_parent (label_widget) == NULL);
priv = group->priv;
if (priv->label_widget == label_widget)
return;
alignment = gtk_tool_item_group_get_alignment (group);
if (priv->label_widget)
{
gtk_widget_set_state (priv->label_widget, GTK_STATE_NORMAL);
gtk_container_remove (GTK_CONTAINER (alignment), priv->label_widget);
}
if (label_widget)
gtk_container_add (GTK_CONTAINER (alignment), label_widget);
priv->label_widget = label_widget;
if (gtk_widget_get_visible (GTK_WIDGET (group)))
gtk_widget_queue_resize (GTK_WIDGET (group));
/* Only show the header widget if the group has children: */
if (label_widget && priv->children)
gtk_widget_show (priv->header);
else
gtk_widget_hide (priv->header);
g_object_freeze_notify (G_OBJECT (group));
g_object_notify (G_OBJECT (group), "label-widget");
g_object_notify (G_OBJECT (group), "label");
g_object_thaw_notify (G_OBJECT (group));
}
/**
* gtk_tool_item_group_set_header_relief:
* @group: a #GtkToolItemGroup
* @style: the #GtkReliefStyle
*
* Set the button relief of the group header.
* See gtk_button_set_relief() for details.
*
* Since: 2.20
*/
void
gtk_tool_item_group_set_header_relief (GtkToolItemGroup *group,
GtkReliefStyle style)
{
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
gtk_button_set_relief (GTK_BUTTON (group->priv->header), style);
}
static gint64
gtk_tool_item_group_get_animation_timestamp (GtkToolItemGroup *group)
{
GTimeVal now;
g_source_get_current_time (group->priv->animation_timeout, &now);
return (now.tv_sec * G_USEC_PER_SEC + now.tv_usec - group->priv->animation_start) / 1000;
}
static void
gtk_tool_item_group_force_expose (GtkToolItemGroup *group)
{
GtkToolItemGroupPrivate* priv = group->priv;
GtkWidget *widget = GTK_WIDGET (group);
if (gtk_widget_get_realized (priv->header))
{
GtkAllocation alignment_allocation;
GtkWidget *alignment = gtk_tool_item_group_get_alignment (group);
GdkRectangle area;
/* Find the header button's arrow area... */
gtk_widget_get_allocation (alignment, &alignment_allocation);
area.x = alignment_allocation.x;
area.y = alignment_allocation.y + (alignment_allocation.height - priv->expander_size) / 2;
area.height = priv->expander_size;
area.width = priv->expander_size;
/* ... and invalidated it to get it animated. */
gdk_window_invalidate_rect (gtk_widget_get_window (priv->header), &area, TRUE);
}
if (gtk_widget_get_realized (widget))
{
GtkAllocation allocation;
GtkWidget *parent = gtk_widget_get_parent (widget);
int x, y, width, height;
/* Find the tool item area button's arrow area... */
gtk_widget_get_allocation (widget, &allocation);
width = allocation.width;
height = allocation.height;
gtk_widget_translate_coordinates (widget, parent, 0, 0, &x, &y);
if (gtk_widget_get_visible (priv->header))
{
GtkAllocation header_allocation;
gtk_widget_get_allocation (priv->header, &header_allocation);
height -= header_allocation.height;
y += header_allocation.height;
}
/* ... and invalidated it to get it animated. */
gtk_widget_queue_draw_area (parent, x, y, width, height);
}
}
static gboolean
gtk_tool_item_group_animation_cb (gpointer data)
{
GtkToolItemGroup *group = GTK_TOOL_ITEM_GROUP (data);
GtkToolItemGroupPrivate* priv = group->priv;
gint64 timestamp = gtk_tool_item_group_get_animation_timestamp (group);
gboolean retval;
GDK_THREADS_ENTER ();
/* Enque this early to reduce number of expose events. */
gtk_widget_queue_resize_no_redraw (GTK_WIDGET (group));
/* Figure out current style of the expander arrow. */
if (priv->collapsed)
{
if (priv->expander_style == GTK_EXPANDER_EXPANDED)
priv->expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
else
priv->expander_style = GTK_EXPANDER_COLLAPSED;
}
else
{
if (priv->expander_style == GTK_EXPANDER_COLLAPSED)
priv->expander_style = GTK_EXPANDER_SEMI_EXPANDED;
else
priv->expander_style = GTK_EXPANDER_EXPANDED;
}
gtk_tool_item_group_force_expose (group);
/* Finish animation when done. */
if (timestamp >= ANIMATION_DURATION)
priv->animation_timeout = NULL;
retval = (priv->animation_timeout != NULL);
GDK_THREADS_LEAVE ();
return retval;
}
/**
* gtk_tool_item_group_set_collapsed:
* @group: a #GtkToolItemGroup
* @collapsed: whether the @group should be collapsed or expanded
*
* Sets whether the @group should be collapsed or expanded.
*
* Since: 2.20
*/
void
gtk_tool_item_group_set_collapsed (GtkToolItemGroup *group,
gboolean collapsed)
{
GtkWidget *parent;
GtkToolItemGroupPrivate* priv;
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
priv = group->priv;
parent = gtk_widget_get_parent (GTK_WIDGET (group));
if (GTK_IS_TOOL_PALETTE (parent) && !collapsed)
_gtk_tool_palette_set_expanding_child (GTK_TOOL_PALETTE (parent),
GTK_WIDGET (group));
if (collapsed != priv->collapsed)
{
if (priv->animation)
{
GTimeVal now;
g_get_current_time (&now);
if (priv->animation_timeout)
g_source_destroy (priv->animation_timeout);
priv->animation_start = (now.tv_sec * G_USEC_PER_SEC + now.tv_usec);
priv->animation_timeout = g_timeout_source_new (ANIMATION_TIMEOUT);
g_source_set_callback (priv->animation_timeout,
gtk_tool_item_group_animation_cb,
group, NULL);
g_source_attach (priv->animation_timeout, NULL);
}
else
{
priv->expander_style = GTK_EXPANDER_COLLAPSED;
gtk_tool_item_group_force_expose (group);
}
priv->collapsed = collapsed;
g_object_notify (G_OBJECT (group), "collapsed");
}
}
/**
* gtk_tool_item_group_set_ellipsize:
* @group: a #GtkToolItemGroup
* @ellipsize: the #PangoEllipsizeMode labels in @group should use
*
* Sets the ellipsization mode which should be used by labels in @group.
*
* Since: 2.20
*/
void
gtk_tool_item_group_set_ellipsize (GtkToolItemGroup *group,
PangoEllipsizeMode ellipsize)
{
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
if (ellipsize != group->priv->ellipsize)
{
group->priv->ellipsize = ellipsize;
gtk_tool_item_group_header_adjust_style (group);
g_object_notify (G_OBJECT (group), "ellipsize");
_gtk_tool_item_group_palette_reconfigured (group);
}
}
/**
* gtk_tool_item_group_get_label:
* @group: a #GtkToolItemGroup
*
* Gets the label of @group.
*
* Returns: the label of @group. The label is an internal string of @group
* and must not be modified. Note that %NULL is returned if a custom
* label has been set with gtk_tool_item_group_set_label_widget()
*
* Since: 2.20
*/
G_CONST_RETURN gchar*
gtk_tool_item_group_get_label (GtkToolItemGroup *group)
{
GtkToolItemGroupPrivate *priv;
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), NULL);
priv = group->priv;
if (GTK_IS_LABEL (priv->label_widget))
return gtk_label_get_label (GTK_LABEL (priv->label_widget));
else
return NULL;
}
/**
* gtk_tool_item_group_get_label_widget:
* @group: a #GtkToolItemGroup
*
* Gets the label widget of @group.
* See gtk_tool_item_group_set_label_widget().
*
* Returns: (transfer none): the label widget of @group
*
* Since: 2.20
*/
GtkWidget*
gtk_tool_item_group_get_label_widget (GtkToolItemGroup *group)
{
GtkWidget *alignment = gtk_tool_item_group_get_alignment (group);
return gtk_bin_get_child (GTK_BIN (alignment));
}
/**
* gtk_tool_item_group_get_collapsed:
* @group: a GtkToolItemGroup
*
* Gets whether @group is collapsed or expanded.
*
* Returns: %TRUE if @group is collapsed, %FALSE if it is expanded
*
* Since: 2.20
*/
gboolean
gtk_tool_item_group_get_collapsed (GtkToolItemGroup *group)
{
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), DEFAULT_COLLAPSED);
return group->priv->collapsed;
}
/**
* gtk_tool_item_group_get_ellipsize:
* @group: a #GtkToolItemGroup
*
* Gets the ellipsization mode of @group.
*
* Returns: the #PangoEllipsizeMode of @group
*
* Since: 2.20
*/
PangoEllipsizeMode
gtk_tool_item_group_get_ellipsize (GtkToolItemGroup *group)
{
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), DEFAULT_ELLIPSIZE);
return group->priv->ellipsize;
}
/**
* gtk_tool_item_group_get_header_relief:
* @group: a #GtkToolItemGroup
*
* Gets the relief mode of the header button of @group.
*
* Returns: the #GtkReliefStyle
*
* Since: 2.20
*/
GtkReliefStyle
gtk_tool_item_group_get_header_relief (GtkToolItemGroup *group)
{
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), GTK_RELIEF_NORMAL);
return gtk_button_get_relief (GTK_BUTTON (group->priv->header));
}
/**
* gtk_tool_item_group_insert:
* @group: a #GtkToolItemGroup
* @item: the #GtkToolItem to insert into @group
* @position: the position of @item in @group, starting with 0.
* The position -1 means end of list.
*
* Inserts @item at @position in the list of children of @group.
*
* Since: 2.20
*/
void
gtk_tool_item_group_insert (GtkToolItemGroup *group,
GtkToolItem *item,
gint position)
{
GtkWidget *parent, *child_widget;
GtkToolItemGroupChild *child;
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
g_return_if_fail (GTK_IS_TOOL_ITEM (item));
g_return_if_fail (position >= -1);
parent = gtk_widget_get_parent (GTK_WIDGET (group));
child = g_new (GtkToolItemGroupChild, 1);
child->item = g_object_ref_sink (item);
child->homogeneous = TRUE;
child->expand = FALSE;
child->fill = TRUE;
child->new_row = FALSE;
group->priv->children = g_list_insert (group->priv->children, child, position);
if (GTK_IS_TOOL_PALETTE (parent))
_gtk_tool_palette_child_set_drag_source (GTK_WIDGET (item), parent);
child_widget = gtk_bin_get_child (GTK_BIN (item));
if (GTK_IS_BUTTON (child_widget))
gtk_button_set_focus_on_click (GTK_BUTTON (child_widget), TRUE);
gtk_widget_set_parent (GTK_WIDGET (item), GTK_WIDGET (group));
}
/**
* gtk_tool_item_group_set_item_position:
* @group: a #GtkToolItemGroup
* @item: the #GtkToolItem to move to a new position, should
* be a child of @group.
* @position: the new position of @item in @group, starting with 0.
* The position -1 means end of list.
*
* Sets the position of @item in the list of children of @group.
*
* Since: 2.20
*/
void
gtk_tool_item_group_set_item_position (GtkToolItemGroup *group,
GtkToolItem *item,
gint position)
{
gint old_position;
GList *link;
GtkToolItemGroupChild *child;
GtkToolItemGroupPrivate* priv;
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
g_return_if_fail (GTK_IS_TOOL_ITEM (item));
g_return_if_fail (position >= -1);
child = gtk_tool_item_group_get_child (group, item, &old_position, &link);
priv = group->priv;
g_return_if_fail (child != NULL);
if (position == old_position)
return;
priv->children = g_list_delete_link (priv->children, link);
priv->children = g_list_insert (priv->children, child, position);
gtk_widget_child_notify (GTK_WIDGET (item), "position");
if (gtk_widget_get_visible (GTK_WIDGET (group)) &&
gtk_widget_get_visible (GTK_WIDGET (item)))
gtk_widget_queue_resize (GTK_WIDGET (group));
}
/**
* gtk_tool_item_group_get_item_position:
* @group: a #GtkToolItemGroup
* @item: a #GtkToolItem
*
* Gets the position of @item in @group as index.
*
* Returns: the index of @item in @group or -1 if @item is no child of @group
*
* Since: 2.20
*/
gint
gtk_tool_item_group_get_item_position (GtkToolItemGroup *group,
GtkToolItem *item)
{
gint position;
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), -1);
g_return_val_if_fail (GTK_IS_TOOL_ITEM (item), -1);
if (gtk_tool_item_group_get_child (group, item, &position, NULL))
return position;
return -1;
}
/**
* gtk_tool_item_group_get_n_items:
* @group: a #GtkToolItemGroup
*
* Gets the number of tool items in @group.
*
* Returns: the number of tool items in @group
*
* Since: 2.20
*/
guint
gtk_tool_item_group_get_n_items (GtkToolItemGroup *group)
{
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), 0);
return g_list_length (group->priv->children);
}
/**
* gtk_tool_item_group_get_nth_item:
* @group: a #GtkToolItemGroup
* @index: the index
*
* Gets the tool item at @index in group.
*
* Returns: (transfer none): the #GtkToolItem at index
*
* Since: 2.20
*/
GtkToolItem*
gtk_tool_item_group_get_nth_item (GtkToolItemGroup *group,
guint index)
{
GtkToolItemGroupChild *child;
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), NULL);
child = g_list_nth_data (group->priv->children, index);
return child != NULL ? child->item : NULL;
}
/**
* gtk_tool_item_group_get_drop_item:
* @group: a #GtkToolItemGroup
* @x: the x position
* @y: the y position
*
* Gets the tool item at position (x, y).
*
* Returns: (transfer none): the #GtkToolItem at position (x, y)
*
* Since: 2.20
*/
GtkToolItem*
gtk_tool_item_group_get_drop_item (GtkToolItemGroup *group,
gint x,
gint y)
{
GtkAllocation allocation;
GtkOrientation orientation;
GList *it;
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), NULL);
gtk_widget_get_allocation (GTK_WIDGET (group), &allocation);
orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
g_return_val_if_fail (x >= 0 && x < allocation.width, NULL);
g_return_val_if_fail (y >= 0 && y < allocation.height, NULL);
for (it = group->priv->children; it != NULL; it = it->next)
{
GtkToolItemGroupChild *child = it->data;
GtkToolItem *item = child->item;
gint x0, y0;
if (!item || !gtk_tool_item_group_is_item_visible (group, child))
continue;
gtk_widget_get_allocation (GTK_WIDGET (item), &allocation);
x0 = x - allocation.x;
y0 = y - allocation.y;
if (x0 >= 0 && x0 < allocation.width &&
y0 >= 0 && y0 < allocation.height)
return item;
}
return NULL;
}
void
_gtk_tool_item_group_item_size_request (GtkToolItemGroup *group,
GtkRequisition *item_size,
gboolean homogeneous_only,
gint *requested_rows)
{
GtkRequisition child_requisition;
GList *it;
gint rows = 0;
gboolean new_row = TRUE;
GtkOrientation orientation;
GtkToolbarStyle style;
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
g_return_if_fail (NULL != item_size);
orientation = gtk_tool_shell_get_orientation (GTK_TOOL_SHELL (group));
style = gtk_tool_shell_get_style (GTK_TOOL_SHELL (group));
item_size->width = item_size->height = 0;
for (it = group->priv->children; it != NULL; it = it->next)
{
GtkToolItemGroupChild *child = it->data;
if (!gtk_tool_item_group_is_item_visible (group, child))
continue;
if (child->new_row || new_row)
{
rows++;
new_row = FALSE;
}
if (!child->homogeneous && child->expand)
new_row = TRUE;
gtk_widget_get_preferred_size (GTK_WIDGET (child->item),
&child_requisition, NULL);
if (!homogeneous_only || child->homogeneous)
item_size->width = MAX (item_size->width, child_requisition.width);
item_size->height = MAX (item_size->height, child_requisition.height);
}
if (requested_rows)
*requested_rows = rows;
}
void
_gtk_tool_item_group_paint (GtkToolItemGroup *group,
cairo_t *cr)
{
GtkAllocation allocation;
GtkWidget *widget = GTK_WIDGET (group);
GtkToolItemGroupPrivate* priv = group->priv;
gtk_widget_get_allocation (widget, &allocation);
gdk_cairo_set_source_window (cr, gtk_widget_get_window (widget),
allocation.x,
allocation.y);
if (priv->animation_timeout)
{
GtkAllocation header_allocation;
GtkOrientation orientation = gtk_tool_item_group_get_orientation (GTK_TOOL_SHELL (group));
cairo_pattern_t *mask;
gdouble v0, v1;
if (GTK_ORIENTATION_VERTICAL == orientation)
v1 = allocation.height;
else
v1 = allocation.width;
v0 = v1 - 256;
gtk_widget_get_allocation (priv->header, &header_allocation);
if (!gtk_widget_get_visible (priv->header))
v0 = MAX (v0, 0);
else if (GTK_ORIENTATION_VERTICAL == orientation)
v0 = MAX (v0, header_allocation.height);
else
v0 = MAX (v0, header_allocation.width);
v1 = MIN (v0 + 256, v1);
if (GTK_ORIENTATION_VERTICAL == orientation)
{
v0 += allocation.y;
v1 += allocation.y;
mask = cairo_pattern_create_linear (0.0, v0, 0.0, v1);
}
else
{
v0 += allocation.x;
v1 += allocation.x;
mask = cairo_pattern_create_linear (v0, 0.0, v1, 0.0);
}
cairo_pattern_add_color_stop_rgba (mask, 0.00, 0.0, 0.0, 0.0, 1.00);
cairo_pattern_add_color_stop_rgba (mask, 0.25, 0.0, 0.0, 0.0, 0.25);
cairo_pattern_add_color_stop_rgba (mask, 0.50, 0.0, 0.0, 0.0, 0.10);
cairo_pattern_add_color_stop_rgba (mask, 0.75, 0.0, 0.0, 0.0, 0.01);
cairo_pattern_add_color_stop_rgba (mask, 1.00, 0.0, 0.0, 0.0, 0.00);
cairo_mask (cr, mask);
cairo_pattern_destroy (mask);
}
else
cairo_paint (cr);
}
gint
_gtk_tool_item_group_get_size_for_limit (GtkToolItemGroup *group,
gint limit,
gboolean vertical,
gboolean animation)
{
GtkRequisition requisition;
GtkToolItemGroupPrivate* priv = group->priv;
gtk_widget_get_preferred_size (GTK_WIDGET (group),
&requisition, NULL);
if (!priv->collapsed || priv->animation_timeout)
{
GtkAllocation allocation = { 0, 0, requisition.width, requisition.height };
GtkRequisition inquery;
if (vertical)
allocation.width = limit;
else
allocation.height = limit;
gtk_tool_item_group_real_size_query (GTK_WIDGET (group),
&allocation, &inquery);
if (vertical)
inquery.height -= requisition.height;
else
inquery.width -= requisition.width;
if (priv->animation_timeout && animation)
{
gint64 timestamp = gtk_tool_item_group_get_animation_timestamp (group);
timestamp = MIN (timestamp, ANIMATION_DURATION);
if (priv->collapsed)
timestamp = ANIMATION_DURATION - timestamp;
if (vertical)
{
inquery.height *= timestamp;
inquery.height /= ANIMATION_DURATION;
}
else
{
inquery.width *= timestamp;
inquery.width /= ANIMATION_DURATION;
}
}
if (vertical)
requisition.height += inquery.height;
else
requisition.width += inquery.width;
}
return (vertical ? requisition.height : requisition.width);
}
gint
_gtk_tool_item_group_get_height_for_width (GtkToolItemGroup *group,
gint width)
{
return _gtk_tool_item_group_get_size_for_limit (group, width, TRUE, group->priv->animation);
}
gint
_gtk_tool_item_group_get_width_for_height (GtkToolItemGroup *group,
gint height)
{
return _gtk_tool_item_group_get_size_for_limit (group, height, FALSE, TRUE);
}
static void
gtk_tool_palette_reconfigured_foreach_item (GtkWidget *child,
gpointer data)
{
if (GTK_IS_TOOL_ITEM (child))
gtk_tool_item_toolbar_reconfigured (GTK_TOOL_ITEM (child));
}
void
_gtk_tool_item_group_palette_reconfigured (GtkToolItemGroup *group)
{
gtk_container_foreach (GTK_CONTAINER (group),
gtk_tool_palette_reconfigured_foreach_item,
NULL);
gtk_tool_item_group_header_adjust_style (group);
}
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