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gtk2/gtk/gtktoolpalette.c
Tristan Van Berkom 3fe0fb4ed9 Added GtkScrollablePolicy property to scrollable interface 
This patch adds the GtkScrollablePolicy type property to GtkScrollable
and implements it in all subclasses. GtkScrolledWindow observes this
property to make a good guess about when to show/hide scrollbars for
height-for-width content.

Most scrollable children do not do height-for-width *yet* but
most certainly will (toolpalette, treeview, iconview, textview
widgets all TODO), for scrollable widgets that do have a minimum
and natural size, it's important for them to observe the state
of this property in order to properly drive the scroll adjustments
according to the desired GtkScrollablePolicy. This patch makes
GtkViewport do this.

Patch also adds tests/testscrolledwindow.c to display the effects
of this property.
2010-10-26 10:15:56 +09:00

2007 lines
58 KiB
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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
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "gtktoolpaletteprivate.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
#include "gtkscrollable.h"
#include "gtkintl.h"
#define DEFAULT_ICON_SIZE GTK_ICON_SIZE_SMALL_TOOLBAR
#define DEFAULT_ORIENTATION GTK_ORIENTATION_VERTICAL
#define DEFAULT_TOOLBAR_STYLE GTK_TOOLBAR_ICONS
#define DEFAULT_CHILD_EXCLUSIVE FALSE
#define DEFAULT_CHILD_EXPAND FALSE
/**
* SECTION:gtktoolpalette
* @Short_description: A tool palette with categories
* @Title: GtkToolPalette
*
* A #GtkToolPalette allows you to add #GtkToolItem<!-- -->s to a palette-like
* container with different categories and drag and drop support.
*
* A #GtkToolPalette is created with a call to gtk_tool_palette_new().
*
* #GtkToolItem<!-- -->s cannot be added directly to a #GtkToolPalette -
* instead they are added to a #GtkToolItemGroup which can than be added
* to a #GtkToolPalette. To add a #GtkToolItemGroup to a #GtkToolPalette,
* use gtk_container_add().
*
* |[
* GtkWidget *palette, *group;
* GtkToolItem *item;
*
* palette = gtk_tool_palette_new ();
* group = gtk_tool_item_group_new (_("Test Category"));
* gtk_container_add (GTK_CONTAINER (palette), group);
*
* item = gtk_tool_button_new_from_stock (GTK_STOCK_OK);
* gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
* ]|
*
* The easiest way to use drag and drop with #GtkToolPalette is to call
* gtk_tool_palette_add_drag_dest() with the desired drag source @palette
* and the desired drag target @widget. Then gtk_tool_palette_get_drag_item()
* can be used to get the dragged item in the #GtkWidget::drag-data-received
* signal handler of the drag target.
*
* |[
* static void
* passive_canvas_drag_data_received (GtkWidget *widget,
* GdkDragContext *context,
* gint x,
* gint y,
* GtkSelectionData *selection,
* guint info,
* guint time,
* gpointer data)
* {
* GtkWidget *palette;
* GtkWidget *item;
*
* /<!-- -->* Get the dragged item *<!-- -->/
* palette = gtk_widget_get_ancestor (gtk_drag_get_source_widget (context),
* GTK_TYPE_TOOL_PALETTE);
* if (palette != NULL)
* item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
* selection);
*
* /<!-- -->* Do something with item *<!-- -->/
* }
*
* GtkWidget *target, palette;
*
* palette = gtk_tool_palette_new ();
* target = gtk_drawing_area_new ();
*
* g_signal_connect (G_OBJECT (target), "drag-data-received",
* G_CALLBACK (passive_canvas_drag_data_received), NULL);
* gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette), target,
* GTK_DEST_DEFAULT_ALL,
* GTK_TOOL_PALETTE_DRAG_ITEMS,
* GDK_ACTION_COPY);
* ]|
*
* Since: 2.20
*/
typedef struct _GtkToolItemGroupInfo GtkToolItemGroupInfo;
typedef struct _GtkToolPaletteDragData GtkToolPaletteDragData;
enum
{
PROP_NONE,
PROP_ICON_SIZE,
PROP_ICON_SIZE_SET,
PROP_ORIENTATION,
PROP_TOOLBAR_STYLE,
PROP_HADJUSTMENT,
PROP_VADJUSTMENT,
PROP_HSCROLL_POLICY,
PROP_VSCROLL_POLICY
};
enum
{
CHILD_PROP_NONE,
CHILD_PROP_EXCLUSIVE,
CHILD_PROP_EXPAND,
};
struct _GtkToolItemGroupInfo
{
GtkToolItemGroup *widget;
gulong notify_collapsed;
guint pos;
guint exclusive : 1;
guint expand : 1;
};
struct _GtkToolPalettePrivate
{
GPtrArray* groups;
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
GtkIconSize icon_size;
gboolean icon_size_set;
GtkOrientation orientation;
GtkToolbarStyle style;
gboolean style_set;
GtkWidget *expanding_child;
GtkSizeGroup *text_size_group;
GtkSettings *settings;
gulong settings_connection;
guint drag_source : 2;
/* GtkScrollablePolicy needs to be checked when
* driving the scrollable adjustment values */
guint hscroll_policy : 1;
guint vscroll_policy : 1;
};
struct _GtkToolPaletteDragData
{
GtkToolPalette *palette;
GtkWidget *item;
};
static GdkAtom dnd_target_atom_item = GDK_NONE;
static GdkAtom dnd_target_atom_group = GDK_NONE;
static const GtkTargetEntry dnd_targets[] =
{
{ "application/x-gtk-tool-palette-item", GTK_TARGET_SAME_APP, 0 },
{ "application/x-gtk-tool-palette-group", GTK_TARGET_SAME_APP, 0 },
};
static void gtk_tool_palette_set_hadjustment (GtkToolPalette *palette,
GtkAdjustment *adjustment);
static void gtk_tool_palette_set_vadjustment (GtkToolPalette *palette,
GtkAdjustment *adjustment);
G_DEFINE_TYPE_WITH_CODE (GtkToolPalette,
gtk_tool_palette,
GTK_TYPE_CONTAINER,
G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL)
G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, NULL))
static void
gtk_tool_palette_init (GtkToolPalette *palette)
{
palette->priv = G_TYPE_INSTANCE_GET_PRIVATE (palette,
GTK_TYPE_TOOL_PALETTE,
GtkToolPalettePrivate);
palette->priv->groups = g_ptr_array_sized_new (4);
g_ptr_array_set_free_func (palette->priv->groups, g_free);
palette->priv->icon_size = DEFAULT_ICON_SIZE;
palette->priv->icon_size_set = FALSE;
palette->priv->orientation = DEFAULT_ORIENTATION;
palette->priv->style = DEFAULT_TOOLBAR_STYLE;
palette->priv->style_set = FALSE;
palette->priv->text_size_group = gtk_size_group_new (GTK_SIZE_GROUP_BOTH);
}
static void
gtk_tool_palette_reconfigured (GtkToolPalette *palette)
{
guint i;
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *info = g_ptr_array_index (palette->priv->groups, i);
if (info->widget)
_gtk_tool_item_group_palette_reconfigured (info->widget);
}
gtk_widget_queue_resize_no_redraw (GTK_WIDGET (palette));
}
static void
gtk_tool_palette_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (object);
switch (prop_id)
{
case PROP_ICON_SIZE:
if ((guint) g_value_get_enum (value) != palette->priv->icon_size)
{
palette->priv->icon_size = g_value_get_enum (value);
gtk_tool_palette_reconfigured (palette);
}
break;
case PROP_ICON_SIZE_SET:
if ((guint) g_value_get_enum (value) != palette->priv->icon_size)
{
palette->priv->icon_size_set = g_value_get_enum (value);
gtk_tool_palette_reconfigured (palette);
}
break;
case PROP_ORIENTATION:
if ((guint) g_value_get_enum (value) != palette->priv->orientation)
{
palette->priv->orientation = g_value_get_enum (value);
gtk_tool_palette_reconfigured (palette);
}
break;
case PROP_TOOLBAR_STYLE:
if ((guint) g_value_get_enum (value) != palette->priv->style)
{
palette->priv->style = g_value_get_enum (value);
gtk_tool_palette_reconfigured (palette);
}
break;
case PROP_HADJUSTMENT:
gtk_tool_palette_set_hadjustment (palette, g_value_get_object (value));
break;
case PROP_VADJUSTMENT:
gtk_tool_palette_set_vadjustment (palette, g_value_get_object (value));
break;
case PROP_HSCROLL_POLICY:
palette->priv->hscroll_policy = g_value_get_enum (value);
gtk_widget_queue_resize (GTK_WIDGET (palette));
break;
case PROP_VSCROLL_POLICY:
palette->priv->vscroll_policy = g_value_get_enum (value);
gtk_widget_queue_resize (GTK_WIDGET (palette));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_tool_palette_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (object);
switch (prop_id)
{
case PROP_ICON_SIZE:
g_value_set_enum (value, gtk_tool_palette_get_icon_size (palette));
break;
case PROP_ICON_SIZE_SET:
g_value_set_boolean (value, palette->priv->icon_size_set);
break;
case PROP_ORIENTATION:
g_value_set_enum (value, palette->priv->orientation);
break;
case PROP_TOOLBAR_STYLE:
g_value_set_enum (value, gtk_tool_palette_get_style (palette));
break;
case PROP_HADJUSTMENT:
g_value_set_object (value, palette->priv->hadjustment);
break;
case PROP_VADJUSTMENT:
g_value_set_object (value, palette->priv->vadjustment);
break;
case PROP_HSCROLL_POLICY:
g_value_set_enum (value, palette->priv->hscroll_policy);
break;
case PROP_VSCROLL_POLICY:
g_value_set_enum (value, palette->priv->vscroll_policy);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_tool_palette_dispose (GObject *object)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (object);
guint i;
if (palette->priv->hadjustment)
{
g_object_unref (palette->priv->hadjustment);
palette->priv->hadjustment = NULL;
}
if (palette->priv->vadjustment)
{
g_object_unref (palette->priv->vadjustment);
palette->priv->vadjustment = NULL;
}
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *group = g_ptr_array_index (palette->priv->groups, i);
if (group->notify_collapsed)
{
g_signal_handler_disconnect (group->widget, group->notify_collapsed);
group->notify_collapsed = 0;
}
}
if (palette->priv->text_size_group)
{
g_object_unref (palette->priv->text_size_group);
palette->priv->text_size_group = NULL;
}
G_OBJECT_CLASS (gtk_tool_palette_parent_class)->dispose (object);
}
static void
gtk_tool_palette_finalize (GObject *object)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (object);
g_ptr_array_free (palette->priv->groups, TRUE);
G_OBJECT_CLASS (gtk_tool_palette_parent_class)->finalize (object);
}
static void
gtk_tool_palette_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (widget);
GtkRequisition child_requisition;
guint border_width;
guint i;
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
requisition->width = 0;
requisition->height = 0;
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *group = g_ptr_array_index (palette->priv->groups, i);
if (!group->widget)
continue;
gtk_widget_get_preferred_size (GTK_WIDGET (group->widget),
&child_requisition, NULL);
if (GTK_ORIENTATION_VERTICAL == palette->priv->orientation)
{
requisition->width = MAX (requisition->width, child_requisition.width);
requisition->height += child_requisition.height;
}
else
{
requisition->width += child_requisition.width;
requisition->height = MAX (requisition->height, child_requisition.height);
}
}
requisition->width += border_width * 2;
requisition->height += border_width * 2;
}
static void
gtk_tool_palette_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (widget);
GtkAdjustment *adjustment = NULL;
GtkAllocation child_allocation;
gint n_expand_groups = 0;
gint remaining_space = 0;
gint expand_space = 0;
gint page_start, page_size = 0;
gint offset = 0;
guint i;
guint border_width;
gint min_offset = -1, max_offset = -1;
gint x;
gint *group_sizes = g_newa (gint, palette->priv->groups->len);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
GtkTextDirection direction = gtk_widget_get_direction (widget);
GTK_WIDGET_CLASS (gtk_tool_palette_parent_class)->size_allocate (widget, allocation);
if (GTK_ORIENTATION_VERTICAL == palette->priv->orientation)
{
adjustment = palette->priv->vadjustment;
page_size = allocation->height;
}
else
{
adjustment = palette->priv->hadjustment;
page_size = allocation->width;
}
if (adjustment)
offset = gtk_adjustment_get_value (adjustment);
if (GTK_ORIENTATION_HORIZONTAL == palette->priv->orientation &&
GTK_TEXT_DIR_RTL == direction)
offset = -offset;
if (GTK_ORIENTATION_VERTICAL == palette->priv->orientation)
child_allocation.width = allocation->width - border_width * 2;
else
child_allocation.height = allocation->height - border_width * 2;
if (GTK_ORIENTATION_VERTICAL == palette->priv->orientation)
remaining_space = allocation->height;
else
remaining_space = allocation->width;
/* figure out the required size of all groups to be able to distribute the
* remaining space on allocation
*/
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *group = g_ptr_array_index (palette->priv->groups, i);
gint size;
if (!group->widget)
continue;
widget = GTK_WIDGET (group->widget);
if (gtk_tool_item_group_get_n_items (group->widget))
{
if (GTK_ORIENTATION_VERTICAL == palette->priv->orientation)
size = _gtk_tool_item_group_get_height_for_width (group->widget, child_allocation.width);
else
size = _gtk_tool_item_group_get_width_for_height (group->widget, child_allocation.height);
if (group->expand && !gtk_tool_item_group_get_collapsed (group->widget))
n_expand_groups += 1;
}
else
size = 0;
remaining_space -= size;
group_sizes[i] = size;
/* if the widget is currently expanding an offset which allows to
* display as much of the widget as possible is calculated
*/
if (widget == palette->priv->expanding_child)
{
gint limit =
GTK_ORIENTATION_VERTICAL == palette->priv->orientation ?
child_allocation.width : child_allocation.height;
gint real_size;
guint j;
min_offset = 0;
for (j = 0; j < i; ++j)
min_offset += group_sizes[j];
max_offset = min_offset + group_sizes[i];
real_size = _gtk_tool_item_group_get_size_for_limit
(GTK_TOOL_ITEM_GROUP (widget), limit,
GTK_ORIENTATION_VERTICAL == palette->priv->orientation,
FALSE);
if (size == real_size)
palette->priv->expanding_child = NULL;
}
}
if (n_expand_groups > 0)
{
remaining_space = MAX (0, remaining_space);
expand_space = remaining_space / n_expand_groups;
}
if (max_offset != -1)
{
gint limit =
GTK_ORIENTATION_VERTICAL == palette->priv->orientation ?
allocation->height : allocation->width;
offset = MIN (MAX (offset, max_offset - limit), min_offset);
}
if (remaining_space > 0)
offset = 0;
x = border_width;
child_allocation.y = border_width;
if (GTK_ORIENTATION_VERTICAL == palette->priv->orientation)
child_allocation.y -= offset;
else
x -= offset;
/* allocate all groups at the calculated positions */
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *group = g_ptr_array_index (palette->priv->groups, i);
GtkWidget *widget;
if (!group->widget)
continue;
widget = GTK_WIDGET (group->widget);
if (gtk_tool_item_group_get_n_items (group->widget))
{
gint size = group_sizes[i];
if (group->expand && !gtk_tool_item_group_get_collapsed (group->widget))
{
size += MIN (expand_space, remaining_space);
remaining_space -= expand_space;
}
if (GTK_ORIENTATION_VERTICAL == palette->priv->orientation)
child_allocation.height = size;
else
child_allocation.width = size;
if (GTK_ORIENTATION_HORIZONTAL == palette->priv->orientation &&
GTK_TEXT_DIR_RTL == direction)
child_allocation.x = allocation->width - x - child_allocation.width;
else
child_allocation.x = x;
gtk_widget_size_allocate (widget, &child_allocation);
gtk_widget_show (widget);
if (GTK_ORIENTATION_VERTICAL == palette->priv->orientation)
child_allocation.y += child_allocation.height;
else
x += child_allocation.width;
}
else
gtk_widget_hide (widget);
}
if (GTK_ORIENTATION_VERTICAL == palette->priv->orientation)
{
child_allocation.y += border_width;
child_allocation.y += offset;
page_start = child_allocation.y;
}
else
{
x += border_width;
x += offset;
page_start = x;
}
/* update the scrollbar to match the displayed adjustment */
if (adjustment)
{
gdouble value;
adjustment->page_increment = page_size * 0.9;
adjustment->step_increment = page_size * 0.1;
adjustment->page_size = page_size;
if (GTK_ORIENTATION_VERTICAL == palette->priv->orientation ||
GTK_TEXT_DIR_LTR == direction)
{
adjustment->lower = 0;
adjustment->upper = MAX (0, page_start);
value = MIN (offset, adjustment->upper - adjustment->page_size);
gtk_adjustment_clamp_page (adjustment, value, offset + page_size);
}
else
{
adjustment->lower = page_size - MAX (0, page_start);
adjustment->upper = page_size;
offset = -offset;
value = MAX (offset, adjustment->lower);
gtk_adjustment_clamp_page (adjustment, offset, value + page_size);
}
gtk_adjustment_changed (adjustment);
}
}
static gboolean
gtk_tool_palette_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (widget);
GdkDisplay *display;
GdkWindow *window;
guint i;
window = gtk_widget_get_window (widget);
display = gdk_window_get_display (window);
if (!gdk_display_supports_composite (display))
return FALSE;
cairo_push_group (cr);
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *info = g_ptr_array_index (palette->priv->groups, i);
if (info->widget)
_gtk_tool_item_group_paint (info->widget, cr);
}
cairo_pop_group_to_source (cr);
cairo_paint (cr);
return FALSE;
}
static void
gtk_tool_palette_realize (GtkWidget *widget)
{
GtkAllocation allocation;
GdkWindow *window;
GdkWindowAttr attributes;
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);
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);
}
static void
gtk_tool_palette_adjustment_value_changed (GtkAdjustment *adjustment,
gpointer data)
{
GtkAllocation allocation;
GtkWidget *widget = GTK_WIDGET (data);
gtk_widget_get_allocation (widget, &allocation);
gtk_tool_palette_size_allocate (widget, &allocation);
}
static void
gtk_tool_palette_add (GtkContainer *container,
GtkWidget *child)
{
GtkToolPalette *palette;
GtkToolItemGroupInfo *info = g_new0(GtkToolItemGroupInfo, 1);
g_return_if_fail (GTK_IS_TOOL_PALETTE (container));
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (child));
palette = GTK_TOOL_PALETTE (container);
g_ptr_array_add (palette->priv->groups, info);
info->pos = palette->priv->groups->len - 1;
info->widget = g_object_ref_sink (child);
gtk_widget_set_parent (child, GTK_WIDGET (palette));
}
static void
gtk_tool_palette_remove (GtkContainer *container,
GtkWidget *child)
{
GtkToolPalette *palette;
guint i;
g_return_if_fail (GTK_IS_TOOL_PALETTE (container));
palette = GTK_TOOL_PALETTE (container);
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *info = g_ptr_array_index (palette->priv->groups, i);
if (GTK_WIDGET(info->widget) == child)
{
g_object_unref (child);
gtk_widget_unparent (child);
g_ptr_array_remove_index (palette->priv->groups, i);
}
}
}
static void
gtk_tool_palette_forall (GtkContainer *container,
gboolean internals,
GtkCallback callback,
gpointer callback_data)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (container);
guint i;
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *info = g_ptr_array_index (palette->priv->groups, i);
if (info->widget)
callback (GTK_WIDGET (info->widget),
callback_data);
}
}
static GType
gtk_tool_palette_child_type (GtkContainer *container)
{
return GTK_TYPE_TOOL_ITEM_GROUP;
}
static void
gtk_tool_palette_set_child_property (GtkContainer *container,
GtkWidget *child,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (container);
switch (prop_id)
{
case CHILD_PROP_EXCLUSIVE:
gtk_tool_palette_set_exclusive (palette, GTK_TOOL_ITEM_GROUP (child),
g_value_get_boolean (value));
break;
case CHILD_PROP_EXPAND:
gtk_tool_palette_set_expand (palette, GTK_TOOL_ITEM_GROUP (child),
g_value_get_boolean (value));
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, prop_id, pspec);
break;
}
}
static void
gtk_tool_palette_get_child_property (GtkContainer *container,
GtkWidget *child,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (container);
switch (prop_id)
{
case CHILD_PROP_EXCLUSIVE:
g_value_set_boolean (value,
gtk_tool_palette_get_exclusive (palette, GTK_TOOL_ITEM_GROUP (child)));
break;
case CHILD_PROP_EXPAND:
g_value_set_boolean (value,
gtk_tool_palette_get_expand (palette, GTK_TOOL_ITEM_GROUP (child)));
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, prop_id, pspec);
break;
}
}
static void
style_change_notify (GtkToolPalette *palette)
{
GtkToolPalettePrivate* priv = palette->priv;
if (!priv->style_set)
{
/* pretend it was set, then unset, thus reverting to new default */
priv->style_set = TRUE;
gtk_tool_palette_unset_style (palette);
}
}
static void
icon_size_change_notify (GtkToolPalette *palette)
{
GtkToolPalettePrivate* priv = palette->priv;
if (!priv->icon_size_set)
{
/* pretend it was set, then unset, thus reverting to new default */
priv->icon_size_set = TRUE;
gtk_tool_palette_unset_icon_size (palette);
}
}
static void
gtk_tool_palette_settings_change_notify (GtkSettings *settings,
const GParamSpec *pspec,
GtkToolPalette *palette)
{
if (strcmp (pspec->name, "gtk-toolbar-style") == 0)
style_change_notify (palette);
else if (strcmp (pspec->name, "gtk-toolbar-icon-size") == 0)
icon_size_change_notify (palette);
}
static void
gtk_tool_palette_screen_changed (GtkWidget *widget,
GdkScreen *previous_screen)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (widget);
GtkToolPalettePrivate* priv = palette->priv;
GtkSettings *old_settings = priv->settings;
GtkSettings *settings;
if (gtk_widget_has_screen (GTK_WIDGET (palette)))
settings = gtk_widget_get_settings (GTK_WIDGET (palette));
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_palette_settings_change_notify),
palette);
priv->settings = g_object_ref (settings);
}
else
priv->settings = NULL;
gtk_tool_palette_reconfigured (palette);
}
static void
gtk_tool_palette_class_init (GtkToolPaletteClass *cls)
{
GObjectClass *oclass = G_OBJECT_CLASS (cls);
GtkWidgetClass *wclass = GTK_WIDGET_CLASS (cls);
GtkContainerClass *cclass = GTK_CONTAINER_CLASS (cls);
oclass->set_property = gtk_tool_palette_set_property;
oclass->get_property = gtk_tool_palette_get_property;
oclass->dispose = gtk_tool_palette_dispose;
oclass->finalize = gtk_tool_palette_finalize;
wclass->size_request = gtk_tool_palette_size_request;
wclass->size_allocate = gtk_tool_palette_size_allocate;
wclass->draw = gtk_tool_palette_draw;
wclass->realize = gtk_tool_palette_realize;
cclass->add = gtk_tool_palette_add;
cclass->remove = gtk_tool_palette_remove;
cclass->forall = gtk_tool_palette_forall;
cclass->child_type = gtk_tool_palette_child_type;
cclass->set_child_property = gtk_tool_palette_set_child_property;
cclass->get_child_property = gtk_tool_palette_get_child_property;
/* Handle screen-changed so we can update our GtkSettings.
*/
wclass->screen_changed = gtk_tool_palette_screen_changed;
g_object_class_override_property (oclass, PROP_ORIENTATION, "orientation");
g_object_class_override_property (oclass, PROP_HADJUSTMENT, "hadjustment");
g_object_class_override_property (oclass, PROP_VADJUSTMENT, "vadjustment");
g_object_class_override_property (oclass, PROP_HSCROLL_POLICY, "hscroll-policy");
g_object_class_override_property (oclass, PROP_VSCROLL_POLICY, "vscroll-policy");
/**
* GtkToolPalette:icon-size:
*
* The size of the icons in a tool palette is normally determined by
* the #GtkSettings:toolbar-icon-size setting. When this property is set,
* it overrides the setting.
*
* This should only be used for special-purpose tool palettes, normal
* application tool palettes should respect the user preferences for the
* size of icons.
*
* Since: 2.20
*/
g_object_class_install_property (oclass,
PROP_ICON_SIZE,
g_param_spec_enum ("icon-size",
P_("Icon size"),
P_("Size of icons in this tool palette"),
GTK_TYPE_ICON_SIZE,
DEFAULT_ICON_SIZE,
GTK_PARAM_READWRITE));
/**
* GtkToolPalette:icon-size-set:
*
* Is %TRUE if the #GtkToolPalette:icon-size property has been set.
*
* Since: 2.20
*/
g_object_class_install_property (oclass,
PROP_ICON_SIZE_SET,
g_param_spec_boolean ("icon-size-set",
P_("Icon size set"),
P_("Whether the icon-size property has been set"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkToolPalette:toolbar-style:
*
* The style of items in the tool palette.
*
* Since: 2.20
*/
g_object_class_install_property (oclass, PROP_TOOLBAR_STYLE,
g_param_spec_enum ("toolbar-style",
P_("Toolbar Style"),
P_("Style of items in the tool palette"),
GTK_TYPE_TOOLBAR_STYLE,
DEFAULT_TOOLBAR_STYLE,
GTK_PARAM_READWRITE));
/**
* GtkToolPalette:exclusive:
*
* Whether the item group should be the only one that is expanded
* at a given time.
*
* Since: 2.20
*/
gtk_container_class_install_child_property (cclass, CHILD_PROP_EXCLUSIVE,
g_param_spec_boolean ("exclusive",
P_("Exclusive"),
P_("Whether the item group should be the only expanded at a given time"),
DEFAULT_CHILD_EXCLUSIVE,
GTK_PARAM_READWRITE));
/**
* GtkToolPalette:expand:
*
* Whether the item group should receive extra space when the palette grows.
* at a given time.
*
* Since: 2.20
*/
gtk_container_class_install_child_property (cclass, CHILD_PROP_EXPAND,
g_param_spec_boolean ("expand",
P_("Expand"),
P_("Whether the item group should receive extra space when the palette grows"),
DEFAULT_CHILD_EXPAND,
GTK_PARAM_READWRITE));
g_type_class_add_private (cls, sizeof (GtkToolPalettePrivate));
dnd_target_atom_item = gdk_atom_intern_static_string (dnd_targets[0].target);
dnd_target_atom_group = gdk_atom_intern_static_string (dnd_targets[1].target);
}
/**
* gtk_tool_palette_new:
*
* Creates a new tool palette.
*
* Returns: a new #GtkToolPalette
*
* Since: 2.20
*/
GtkWidget*
gtk_tool_palette_new (void)
{
return g_object_new (GTK_TYPE_TOOL_PALETTE, NULL);
}
/**
* gtk_tool_palette_set_icon_size:
* @palette: a #GtkToolPalette
* @icon_size: (type int): the #GtkIconSize that icons in the tool
* palette shall have
*
* Sets the size of icons in the tool palette.
*
* Since: 2.20
*/
void
gtk_tool_palette_set_icon_size (GtkToolPalette *palette,
GtkIconSize icon_size)
{
GtkToolPalettePrivate *priv;
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
g_return_if_fail (icon_size != GTK_ICON_SIZE_INVALID);
priv = palette->priv;
if (!priv->icon_size_set)
{
priv->icon_size_set = TRUE;
g_object_notify (G_OBJECT (palette), "icon-size-set");
}
if (priv->icon_size == icon_size)
return;
priv->icon_size = icon_size;
g_object_notify (G_OBJECT (palette), "icon-size");
gtk_tool_palette_reconfigured (palette);
gtk_widget_queue_resize (GTK_WIDGET (palette));
}
static GtkSettings *
toolpalette_get_settings (GtkToolPalette *palette)
{
GtkToolPalettePrivate *priv = palette->priv;
return priv->settings;
}
/**
* gtk_tool_palette_unset_icon_size:
* @palette: a #GtkToolPalette
*
* Unsets the tool palette icon size set with gtk_tool_palette_set_icon_size(),
* so that user preferences will be used to determine the icon size.
*
* Since: 2.20
*/
void
gtk_tool_palette_unset_icon_size (GtkToolPalette *palette)
{
GtkToolPalettePrivate* priv = palette->priv;
GtkIconSize size;
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
if (palette->priv->icon_size_set)
{
GtkSettings *settings = toolpalette_get_settings (palette);
if (settings)
{
g_object_get (settings,
"gtk-toolbar-icon-size", &size,
NULL);
}
else
size = DEFAULT_ICON_SIZE;
if (size != palette->priv->icon_size)
{
gtk_tool_palette_set_icon_size (palette, size);
g_object_notify (G_OBJECT (palette), "icon-size");
}
priv->icon_size_set = FALSE;
g_object_notify (G_OBJECT (palette), "icon-size-set");
}
}
/* Set the "toolbar-style" property and do appropriate things.
* GtkToolbar does this by emitting a signal instead of just
* calling a function...
*/
static void
gtk_tool_palette_change_style (GtkToolPalette *palette,
GtkToolbarStyle style)
{
GtkToolPalettePrivate* priv = palette->priv;
if (priv->style != style)
{
priv->style = style;
gtk_tool_palette_reconfigured (palette);
gtk_widget_queue_resize (GTK_WIDGET (palette));
g_object_notify (G_OBJECT (palette), "toolbar-style");
}
}
/**
* gtk_tool_palette_set_style:
* @palette: a #GtkToolPalette
* @style: the #GtkToolbarStyle that items in the tool palette shall have
*
* Sets the style (text, icons or both) of items in the tool palette.
*
* Since: 2.20
*/
void
gtk_tool_palette_set_style (GtkToolPalette *palette,
GtkToolbarStyle style)
{
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
palette->priv->style_set = TRUE;
gtk_tool_palette_change_style (palette, style);
}
/**
* gtk_tool_palette_unset_style:
* @palette: a #GtkToolPalette
*
* Unsets a toolbar style set with gtk_tool_palette_set_style(),
* so that user preferences will be used to determine the toolbar style.
*
* Since: 2.20
*/
void
gtk_tool_palette_unset_style (GtkToolPalette *palette)
{
GtkToolPalettePrivate* priv = palette->priv;
GtkToolbarStyle style;
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
if (priv->style_set)
{
GtkSettings *settings = toolpalette_get_settings (palette);
if (settings)
g_object_get (settings,
"gtk-toolbar-style", &style,
NULL);
else
style = DEFAULT_TOOLBAR_STYLE;
if (style != priv->style)
gtk_tool_palette_change_style (palette, style);
priv->style_set = FALSE;
}
}
/**
* gtk_tool_palette_get_icon_size:
* @palette: a #GtkToolPalette
*
* Gets the size of icons in the tool palette.
* See gtk_tool_palette_set_icon_size().
*
* Returns: (type int): the #GtkIconSize of icons in the tool palette
*
* Since: 2.20
*/
GtkIconSize
gtk_tool_palette_get_icon_size (GtkToolPalette *palette)
{
g_return_val_if_fail (GTK_IS_TOOL_PALETTE (palette), DEFAULT_ICON_SIZE);
return palette->priv->icon_size;
}
/**
* gtk_tool_palette_get_style:
* @palette: a #GtkToolPalette
*
* Gets the style (icons, text or both) of items in the tool palette.
*
* Returns: the #GtkToolbarStyle of items in the tool palette.
*
* Since: 2.20
*/
GtkToolbarStyle
gtk_tool_palette_get_style (GtkToolPalette *palette)
{
g_return_val_if_fail (GTK_IS_TOOL_PALETTE (palette), DEFAULT_TOOLBAR_STYLE);
return palette->priv->style;
}
gint
_gtk_tool_palette_compare_groups (gconstpointer a,
gconstpointer b)
{
const GtkToolItemGroupInfo *group_a = a;
const GtkToolItemGroupInfo *group_b = b;
return group_a->pos - group_b->pos;
}
/**
* gtk_tool_palette_set_group_position:
* @palette: a #GtkToolPalette
* @group: a #GtkToolItemGroup which is a child of palette
* @position: a new index for group
*
* Sets the position of the group as an index of the tool palette.
* If position is 0 the group will become the first child, if position is
* -1 it will become the last child.
*
* Since: 2.20
*/
void
gtk_tool_palette_set_group_position (GtkToolPalette *palette,
GtkToolItemGroup *group,
gint position)
{
GtkToolItemGroupInfo *group_new;
GtkToolItemGroupInfo *group_old;
gint old_position;
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
g_return_if_fail (position >= -1);
if (-1 == position)
position = palette->priv->groups->len - 1;
g_return_if_fail ((guint) position < palette->priv->groups->len);
group_new = g_ptr_array_index (palette->priv->groups, position);
if (GTK_TOOL_ITEM_GROUP (group) == group_new->widget)
return;
old_position = gtk_tool_palette_get_group_position (palette, group);
g_return_if_fail (old_position >= 0);
group_old = g_ptr_array_index (palette->priv->groups, old_position);
group_new->pos = position;
group_old->pos = old_position;
g_ptr_array_sort (palette->priv->groups, _gtk_tool_palette_compare_groups);
gtk_widget_queue_resize (GTK_WIDGET (palette));
}
static void
gtk_tool_palette_group_notify_collapsed (GtkToolItemGroup *group,
GParamSpec *pspec,
gpointer data)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (data);
guint i;
if (gtk_tool_item_group_get_collapsed (group))
return;
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *info = g_ptr_array_index (palette->priv->groups, i);
GtkToolItemGroup *current_group = info->widget;
if (current_group && current_group != group)
gtk_tool_item_group_set_collapsed (current_group, TRUE);
}
}
/**
* gtk_tool_palette_set_exclusive:
* @palette: a #GtkToolPalette
* @group: a #GtkToolItemGroup which is a child of palette
* @exclusive: whether the group should be exclusive or not
*
* Sets whether the group should be exclusive or not.
* If an exclusive group is expanded all other groups are collapsed.
*
* Since: 2.20
*/
void
gtk_tool_palette_set_exclusive (GtkToolPalette *palette,
GtkToolItemGroup *group,
gboolean exclusive)
{
GtkToolItemGroupInfo *group_info;
gint position;
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
position = gtk_tool_palette_get_group_position (palette, group);
g_return_if_fail (position >= 0);
group_info = g_ptr_array_index (palette->priv->groups, position);
if (exclusive == group_info->exclusive)
return;
group_info->exclusive = exclusive;
if (group_info->exclusive != (0 != group_info->notify_collapsed))
{
if (group_info->exclusive)
{
group_info->notify_collapsed =
g_signal_connect (group, "notify::collapsed",
G_CALLBACK (gtk_tool_palette_group_notify_collapsed),
palette);
}
else
{
g_signal_handler_disconnect (group, group_info->notify_collapsed);
group_info->notify_collapsed = 0;
}
}
gtk_tool_palette_group_notify_collapsed (group_info->widget, NULL, palette);
gtk_widget_child_notify (GTK_WIDGET (group), "exclusive");
}
/**
* gtk_tool_palette_set_expand:
* @palette: a #GtkToolPalette
* @group: a #GtkToolItemGroup which is a child of palette
* @expand: whether the group should be given extra space
*
* Sets whether the group should be given extra space.
*
* Since: 2.20
*/
void
gtk_tool_palette_set_expand (GtkToolPalette *palette,
GtkToolItemGroup *group,
gboolean expand)
{
GtkToolItemGroupInfo *group_info;
gint position;
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
g_return_if_fail (GTK_IS_TOOL_ITEM_GROUP (group));
position = gtk_tool_palette_get_group_position (palette, group);
g_return_if_fail (position >= 0);
group_info = g_ptr_array_index (palette->priv->groups, position);
if (expand != group_info->expand)
{
group_info->expand = expand;
gtk_widget_queue_resize (GTK_WIDGET (palette));
gtk_widget_child_notify (GTK_WIDGET (group), "expand");
}
}
/**
* gtk_tool_palette_get_group_position:
* @palette: a #GtkToolPalette
* @group: a #GtkToolItemGroup
*
* Gets the position of @group in @palette as index.
* See gtk_tool_palette_set_group_position().
*
* Returns: the index of group or -1 if @group is not a child of @palette
*
* Since: 2.20
*/
gint
gtk_tool_palette_get_group_position (GtkToolPalette *palette,
GtkToolItemGroup *group)
{
guint i;
g_return_val_if_fail (GTK_IS_TOOL_PALETTE (palette), -1);
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), -1);
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *info = g_ptr_array_index (palette->priv->groups, i);
if ((gpointer) group == info->widget)
return i;
}
return -1;
}
/**
* gtk_tool_palette_get_exclusive:
* @palette: a #GtkToolPalette
* @group: a #GtkToolItemGroup which is a child of palette
*
* Gets whether @group is exclusive or not.
* See gtk_tool_palette_set_exclusive().
*
* Returns: %TRUE if @group is exclusive
*
* Since: 2.20
*/
gboolean
gtk_tool_palette_get_exclusive (GtkToolPalette *palette,
GtkToolItemGroup *group)
{
gint position;
GtkToolItemGroupInfo *info;
g_return_val_if_fail (GTK_IS_TOOL_PALETTE (palette), DEFAULT_CHILD_EXCLUSIVE);
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), DEFAULT_CHILD_EXCLUSIVE);
position = gtk_tool_palette_get_group_position (palette, group);
g_return_val_if_fail (position >= 0, DEFAULT_CHILD_EXCLUSIVE);
info = g_ptr_array_index (palette->priv->groups, position);
return info->exclusive;
}
/**
* gtk_tool_palette_get_expand:
* @palette: a #GtkToolPalette
* @group: a #GtkToolItemGroup which is a child of palette
*
* Gets whether group should be given extra space.
* See gtk_tool_palette_set_expand().
*
* Returns: %TRUE if group should be given extra space, %FALSE otherwise
*
* Since: 2.20
*/
gboolean
gtk_tool_palette_get_expand (GtkToolPalette *palette,
GtkToolItemGroup *group)
{
gint position;
GtkToolItemGroupInfo *info;
g_return_val_if_fail (GTK_IS_TOOL_PALETTE (palette), DEFAULT_CHILD_EXPAND);
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (group), DEFAULT_CHILD_EXPAND);
position = gtk_tool_palette_get_group_position (palette, group);
g_return_val_if_fail (position >= 0, DEFAULT_CHILD_EXPAND);
info = g_ptr_array_index (palette->priv->groups, position);
return info->expand;
}
/**
* gtk_tool_palette_get_drop_item:
* @palette: a #GtkToolPalette
* @x: the x position
* @y: the y position
*
* Gets the item at position (x, y).
* See gtk_tool_palette_get_drop_group().
*
* Returns: (transfer none): the #GtkToolItem at position or %NULL if there is no such item
*
* Since: 2.20
*/
GtkToolItem*
gtk_tool_palette_get_drop_item (GtkToolPalette *palette,
gint x,
gint y)
{
GtkAllocation allocation;
GtkToolItemGroup *group = gtk_tool_palette_get_drop_group (palette, x, y);
GtkWidget *widget = GTK_WIDGET (group);
if (group)
{
gtk_widget_get_allocation (widget, &allocation);
return gtk_tool_item_group_get_drop_item (group,
x - allocation.x,
y - allocation.y);
}
return NULL;
}
/**
* gtk_tool_palette_get_drop_group:
* @palette: a #GtkToolPalette
* @x: the x position
* @y: the y position
*
* Gets the group at position (x, y).
*
* Returns: (transfer none): the #GtkToolItemGroup at position or %NULL
* if there is no such group
*
* Since: 2.20
*/
GtkToolItemGroup*
gtk_tool_palette_get_drop_group (GtkToolPalette *palette,
gint x,
gint y)
{
GtkAllocation allocation;
guint i;
g_return_val_if_fail (GTK_IS_TOOL_PALETTE (palette), NULL);
gtk_widget_get_allocation (GTK_WIDGET (palette), &allocation);
g_return_val_if_fail (x >= 0 && x < allocation.width, NULL);
g_return_val_if_fail (y >= 0 && y < allocation.height, NULL);
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *group = g_ptr_array_index (palette->priv->groups, i);
GtkWidget *widget;
gint x0, y0;
if (!group->widget)
continue;
widget = GTK_WIDGET (group->widget);
gtk_widget_get_allocation (widget, &allocation);
x0 = x - allocation.x;
y0 = y - allocation.y;
if (x0 >= 0 && x0 < allocation.width &&
y0 >= 0 && y0 < allocation.height)
return GTK_TOOL_ITEM_GROUP (widget);
}
return NULL;
}
/**
* gtk_tool_palette_get_drag_item:
* @palette: a #GtkToolPalette
* @selection: a #GtkSelectionData
*
* Get the dragged item from the selection.
* This could be a #GtkToolItem or a #GtkToolItemGroup.
*
* Returns: (transfer none): the dragged item in selection
*
* Since: 2.20
*/
GtkWidget*
gtk_tool_palette_get_drag_item (GtkToolPalette *palette,
const GtkSelectionData *selection)
{
GtkToolPaletteDragData *data;
g_return_val_if_fail (GTK_IS_TOOL_PALETTE (palette), NULL);
g_return_val_if_fail (NULL != selection, NULL);
g_return_val_if_fail (selection->format == 8, NULL);
g_return_val_if_fail (selection->length == sizeof (GtkToolPaletteDragData), NULL);
g_return_val_if_fail (selection->target == dnd_target_atom_item ||
selection->target == dnd_target_atom_group,
NULL);
data = (GtkToolPaletteDragData*) selection->data;
g_return_val_if_fail (data->palette == palette, NULL);
if (dnd_target_atom_item == selection->target)
g_return_val_if_fail (GTK_IS_TOOL_ITEM (data->item), NULL);
else if (dnd_target_atom_group == selection->target)
g_return_val_if_fail (GTK_IS_TOOL_ITEM_GROUP (data->item), NULL);
return data->item;
}
/**
* gtk_tool_palette_set_drag_source:
* @palette: a #GtkToolPalette
* @targets: the #GtkToolPaletteDragTarget<!-- -->s
* which the widget should support
*
* Sets the tool palette as a drag source.
* Enables all groups and items in the tool palette as drag sources
* on button 1 and button 3 press with copy and move actions.
* See gtk_drag_source_set().
*
* Since: 2.20
*/
void
gtk_tool_palette_set_drag_source (GtkToolPalette *palette,
GtkToolPaletteDragTargets targets)
{
guint i;
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
if ((palette->priv->drag_source & targets) == targets)
return;
palette->priv->drag_source |= targets;
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkToolItemGroupInfo *info = g_ptr_array_index (palette->priv->groups, i);
if (info->widget)
gtk_container_forall (GTK_CONTAINER (info->widget),
_gtk_tool_palette_child_set_drag_source,
palette);
}
}
/**
* gtk_tool_palette_add_drag_dest:
* @palette: a #GtkToolPalette
* @widget: a #GtkWidget which should be a drag destination for @palette
* @flags: the flags that specify what actions GTK+ should take for drops
* on that widget
* @targets: the #GtkToolPaletteDragTarget<!-- -->s which the widget
* should support
* @actions: the #GdkDragAction<!-- -->s which the widget should suppport
*
* Sets @palette as drag source (see gtk_tool_palette_set_drag_source())
* and sets @widget as a drag destination for drags from @palette.
* See gtk_drag_dest_set().
*
* Since: 2.20
*/
void
gtk_tool_palette_add_drag_dest (GtkToolPalette *palette,
GtkWidget *widget,
GtkDestDefaults flags,
GtkToolPaletteDragTargets targets,
GdkDragAction actions)
{
GtkTargetEntry entries[G_N_ELEMENTS (dnd_targets)];
gint n_entries = 0;
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
g_return_if_fail (GTK_IS_WIDGET (widget));
gtk_tool_palette_set_drag_source (palette,
targets);
if (targets & GTK_TOOL_PALETTE_DRAG_ITEMS)
entries[n_entries++] = dnd_targets[0];
if (targets & GTK_TOOL_PALETTE_DRAG_GROUPS)
entries[n_entries++] = dnd_targets[1];
gtk_drag_dest_set (widget, flags, entries, n_entries, actions);
}
void
_gtk_tool_palette_get_item_size (GtkToolPalette *palette,
GtkRequisition *item_size,
gboolean homogeneous_only,
gint *requested_rows)
{
GtkRequisition max_requisition;
gint max_rows;
guint i;
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
g_return_if_fail (NULL != item_size);
max_requisition.width = 0;
max_requisition.height = 0;
max_rows = 0;
/* iterate over all groups and calculate the max item_size and max row request */
for (i = 0; i < palette->priv->groups->len; ++i)
{
GtkRequisition requisition;
gint rows;
GtkToolItemGroupInfo *group = g_ptr_array_index (palette->priv->groups, i);
if (!group->widget)
continue;
_gtk_tool_item_group_item_size_request (group->widget, &requisition, homogeneous_only, &rows);
max_requisition.width = MAX (max_requisition.width, requisition.width);
max_requisition.height = MAX (max_requisition.height, requisition.height);
max_rows = MAX (max_rows, rows);
}
*item_size = max_requisition;
if (requested_rows)
*requested_rows = max_rows;
}
static void
gtk_tool_palette_item_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection,
guint info,
guint time,
gpointer data)
{
GtkToolPaletteDragData drag_data = { GTK_TOOL_PALETTE (data), NULL };
if (selection->target == dnd_target_atom_item)
drag_data.item = gtk_widget_get_ancestor (widget, GTK_TYPE_TOOL_ITEM);
if (drag_data.item)
gtk_selection_data_set (selection, selection->target, 8,
(guchar*) &drag_data, sizeof (drag_data));
}
static void
gtk_tool_palette_child_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection,
guint info,
guint time,
gpointer data)
{
GtkToolPaletteDragData drag_data = { GTK_TOOL_PALETTE (data), NULL };
if (selection->target == dnd_target_atom_group)
drag_data.item = gtk_widget_get_ancestor (widget, GTK_TYPE_TOOL_ITEM_GROUP);
if (drag_data.item)
gtk_selection_data_set (selection, selection->target, 8,
(guchar*) &drag_data, sizeof (drag_data));
}
void
_gtk_tool_palette_child_set_drag_source (GtkWidget *child,
gpointer data)
{
GtkToolPalette *palette = GTK_TOOL_PALETTE (data);
/* Check drag_source,
* to work properly when called from gtk_tool_item_group_insert().
*/
if (!palette->priv->drag_source)
return;
if (GTK_IS_TOOL_ITEM (child) &&
(palette->priv->drag_source & GTK_TOOL_PALETTE_DRAG_ITEMS))
{
/* Connect to child instead of the item itself,
* to work arround bug 510377.
*/
if (GTK_IS_TOOL_BUTTON (child))
child = gtk_bin_get_child (GTK_BIN (child));
if (!child)
return;
gtk_drag_source_set (child, GDK_BUTTON1_MASK | GDK_BUTTON3_MASK,
&dnd_targets[0], 1, GDK_ACTION_COPY | GDK_ACTION_MOVE);
g_signal_connect (child, "drag-data-get",
G_CALLBACK (gtk_tool_palette_item_drag_data_get),
palette);
}
else if (GTK_IS_BUTTON (child) &&
(palette->priv->drag_source & GTK_TOOL_PALETTE_DRAG_GROUPS))
{
gtk_drag_source_set (child, GDK_BUTTON1_MASK | GDK_BUTTON3_MASK,
&dnd_targets[1], 1, GDK_ACTION_COPY | GDK_ACTION_MOVE);
g_signal_connect (child, "drag-data-get",
G_CALLBACK (gtk_tool_palette_child_drag_data_get),
palette);
}
}
/**
* gtk_tool_palette_get_drag_target_item:
*
* Gets the target entry for a dragged #GtkToolItem.
*
* Returns: (transfer none): the #GtkTargetEntry for a dragged item.
*
* Since: 2.20
*/
G_CONST_RETURN GtkTargetEntry*
gtk_tool_palette_get_drag_target_item (void)
{
return &dnd_targets[0];
}
/**
* gtk_tool_palette_get_drag_target_group:
*
* Get the target entry for a dragged #GtkToolItemGroup.
*
* Returns: (transfer none): the #GtkTargetEntry for a dragged group
*
* Since: 2.20
*/
G_CONST_RETURN GtkTargetEntry*
gtk_tool_palette_get_drag_target_group (void)
{
return &dnd_targets[1];
}
void
_gtk_tool_palette_set_expanding_child (GtkToolPalette *palette,
GtkWidget *widget)
{
g_return_if_fail (GTK_IS_TOOL_PALETTE (palette));
palette->priv->expanding_child = widget;
}
/**
* gtk_tool_palette_get_hadjustment:
* @palette: a #GtkToolPalette
*
* Gets the horizontal adjustment of the tool palette.
*
* Returns: (transfer none): the horizontal adjustment of @palette
*
* Since: 2.20
*
* Deprecated: 3.0: Use gtk_scrollable_get_hadjustment()
*/
GtkAdjustment*
gtk_tool_palette_get_hadjustment (GtkToolPalette *palette)
{
g_return_val_if_fail (GTK_IS_TOOL_PALETTE (palette), NULL);
return palette->priv->hadjustment;
}
static void
gtk_tool_palette_set_hadjustment (GtkToolPalette *palette,
GtkAdjustment *adjustment)
{
GtkToolPalettePrivate *priv = palette->priv;
if (adjustment && priv->hadjustment == adjustment)
return;
if (priv->hadjustment != NULL)
{
g_signal_handlers_disconnect_by_func (priv->hadjustment,
gtk_tool_palette_adjustment_value_changed,
palette);
g_object_unref (priv->hadjustment);
}
if (adjustment == NULL)
adjustment = gtk_adjustment_new (0.0, 0.0, 0.0,
0.0, 0.0, 0.0);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gtk_tool_palette_adjustment_value_changed),
palette);
priv->hadjustment = g_object_ref_sink (adjustment);
/* FIXME: Adjustment should probably have it's values updated now */
g_object_notify (G_OBJECT (palette), "hadjustment");
}
/**
* gtk_tool_palette_get_vadjustment:
* @palette: a #GtkToolPalette
*
* Gets the vertical adjustment of the tool palette.
*
* Returns: (transfer none): the vertical adjustment of @palette
*
* Since: 2.20
*
* Deprecated: 3.0: Use gtk_scrollable_get_vadjustment()
*/
GtkAdjustment*
gtk_tool_palette_get_vadjustment (GtkToolPalette *palette)
{
g_return_val_if_fail (GTK_IS_TOOL_PALETTE (palette), NULL);
return palette->priv->vadjustment;
}
static void
gtk_tool_palette_set_vadjustment (GtkToolPalette *palette,
GtkAdjustment *adjustment)
{
GtkToolPalettePrivate *priv = palette->priv;
if (adjustment && priv->vadjustment == adjustment)
return;
if (priv->vadjustment != NULL)
{
g_signal_handlers_disconnect_by_func (priv->vadjustment,
gtk_tool_palette_adjustment_value_changed,
palette);
g_object_unref (priv->vadjustment);
}
if (adjustment == NULL)
adjustment = gtk_adjustment_new (0.0, 0.0, 0.0,
0.0, 0.0, 0.0);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gtk_tool_palette_adjustment_value_changed),
palette);
priv->vadjustment = g_object_ref_sink (adjustment);
/* FIXME: Adjustment should probably have it's values updated now */
g_object_notify (G_OBJECT (palette), "vadjustment");
}
GtkSizeGroup *
_gtk_tool_palette_get_size_group (GtkToolPalette *palette)
{
g_return_val_if_fail (GTK_IS_TOOL_PALETTE (palette), NULL);
return palette->priv->text_size_group;
}
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