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gtk2/gtk/gtkiconview.c
Anders Carlsson 9897d659c0 Use gdk_draw_pixbuf. 
2003-08-24  Anders Carlsson  <andersca@gnome.org>

	* libegg/iconlist/eggiconlist.c: (egg_icon_list_paint_item),
	(egg_icon_list_paint_rubberband):
	Use gdk_draw_pixbuf.

	(egg_icon_list_item_unref):
	Call destroy_notify on the list item. Reported by Edd Dumbill.
2003-08-24 17:28:23 +00:00

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/* eggiconlist.h
* Copyright (C) 2002 Anders Carlsson <andersca@gnu.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "eggiconlist.h"
#include <string.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtkbindings.h>
#include <gtk/gtkdnd.h>
#include <gtk/gtkmain.h>
#include <gtk/gtksignal.h>
#include "eggintl.h"
#include "eggmarshalers.h"
#define MINIMUM_ICON_ITEM_WIDTH 100
#define ICON_TEXT_PADDING 3
#define ICON_LIST_ITEM_DATA "egg-icon-list-item-data"
struct _EggIconListItem
{
gint ref_count;
EggIconList *icon_list;
char *label;
GdkPixbuf *icon;
GList *list;
gpointer user_data;
GDestroyNotify destroy_notify;
/* Bounding boxes */
gint x, y;
gint width, height;
gint pixbuf_x, pixbuf_y;
gint pixbuf_height, pixbuf_width;
gint layout_x, layout_y;
gint layout_width, layout_height;
guint selected : 1;
guint selected_before_rubberbanding : 1;
};
struct _EggIconListPrivate
{
gint width, height;
GtkSelectionMode selection_mode;
GdkWindow *bin_window;
GList *items;
GList *last_item;
gint item_count;
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
guint layout_idle_id;
gboolean rubberbanding;
gint rubberband_x1, rubberband_y1;
gint rubberband_x2, rubberband_y2;
EggIconListItem *cursor_item;
char *typeahead_string;
/* Sorting */
gboolean sorted;
GtkSortType sort_order;
EggIconListItemCompareFunc sort_func;
gpointer sort_data;
GDestroyNotify sort_destroy_notify;
EggIconListItem *last_single_clicked;
/* Drag-and-drop. */
gint pressed_button;
gint press_start_x;
gint press_start_y;
/* Layout used to draw icon text */
PangoLayout *layout;
};
/* Signals */
enum
{
ITEM_ACTIVATED,
ITEM_ADDED,
ITEM_REMOVED,
SELECTION_CHANGED,
SELECT_ALL,
UNSELECT_ALL,
SELECT_CURSOR_ITEM,
TOGGLE_CURSOR_ITEM,
MOVE_CURSOR,
LAST_SIGNAL
};
/* Properties */
enum
{
PROP_0,
PROP_SELECTION_MODE,
PROP_SORTED,
PROP_SORT_ORDER,
};
/* Icon List Item properties */
enum
{
PROP_ITEM_0,
PROP_LABEL,
};
static void egg_icon_list_class_init (EggIconListClass *klass);
static void egg_icon_list_init (EggIconList *icon_list);
/* GObject signals */
static void egg_icon_list_finalize (GObject *object);
static void egg_icon_list_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void egg_icon_list_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
/* GtkWidget signals */
static void egg_icon_list_realize (GtkWidget *widget);
static void egg_icon_list_unrealize (GtkWidget *widget);
static void egg_icon_list_map (GtkWidget *widget);
static void egg_icon_list_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void egg_icon_list_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean egg_icon_list_expose (GtkWidget *widget,
GdkEventExpose *expose);
static gboolean egg_icon_list_motion (GtkWidget *widget,
GdkEventMotion *event);
static gboolean egg_icon_list_button_press (GtkWidget *widget,
GdkEventButton *event);
static gboolean egg_icon_list_button_release (GtkWidget *widget,
GdkEventButton *event);
static gboolean egg_icon_list_key_press (GtkWidget *widget,
GdkEventKey *event);
/* EggIconList signals */
static void egg_icon_list_set_adjustments (EggIconList *icon_list,
GtkAdjustment *hadj,
GtkAdjustment *vadj);
static void egg_icon_list_real_select_all (EggIconList *icon_list);
static void egg_icon_list_real_unselect_all (EggIconList *icon_list);
static void egg_icon_list_real_select_cursor_item (EggIconList *icon_list);
static void egg_icon_list_real_toggle_cursor_item (EggIconList *icon_list);
/* Internal functions */
static void egg_icon_list_adjustment_changed (GtkAdjustment *adjustment,
EggIconList *icon_list);
static void egg_icon_list_layout (EggIconList *icon_list);
static void egg_icon_list_paint_item (EggIconList *icon_list,
EggIconListItem *item,
GdkRectangle *area);
static void egg_icon_list_paint_rubberband (EggIconList *icon_list,
GdkRectangle *area);
static void egg_icon_list_queue_draw_item (EggIconList *icon_list,
EggIconListItem *item);
static void egg_icon_list_queue_layout (EggIconList *icon_list);
static void egg_icon_list_set_cursor_item (EggIconList *icon_list,
EggIconListItem *item);
static void egg_icon_list_append_typeahead_string (EggIconList *icon_list,
const gchar *string);
static void egg_icon_list_select_first_matching_item (EggIconList *icon_list,
const char *pattern);
static void egg_icon_list_start_rubberbanding (EggIconList *icon_list,
gint x,
gint y);
static void egg_icon_list_stop_rubberbanding (EggIconList *icon_list);
static void egg_icon_list_sort (EggIconList *icon_list);
static gint egg_icon_list_sort_func (EggIconListItem *a,
EggIconListItem *b,
EggIconList *icon_list);
static void egg_icon_list_insert_item_sorted (EggIconList *icon_list,
EggIconListItem *item);
static void egg_icon_list_validate (EggIconList *icon_list);
static void egg_icon_list_update_rubberband_selection (EggIconList *icon_list);
static gboolean egg_icon_list_item_hit_test (EggIconListItem *item,
gint x,
gint y,
gint width,
gint height);
static gboolean egg_icon_list_maybe_begin_dragging_items (EggIconList *icon_list,
GdkEventMotion *event);
static gboolean egg_icon_list_unselect_all_internal (EggIconList *icon_list,
gboolean emit);
static void egg_icon_list_calculate_item_size (EggIconList *icon_list, EggIconListItem *item);
static void rubberbanding (gpointer data);
static void egg_icon_list_item_invalidate_size (EggIconListItem *item);
static GtkContainerClass *parent_class = NULL;
static guint icon_list_signals[LAST_SIGNAL] = { 0 };
GType
egg_icon_list_item_get_type (void)
{
static GType boxed_type = 0;
if (!boxed_type)
boxed_type = g_boxed_type_register_static ("EggIconListItem",
(GBoxedCopyFunc) egg_icon_list_item_ref,
(GBoxedFreeFunc) egg_icon_list_item_unref);
return boxed_type;
}
GType
egg_icon_list_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (EggIconListClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) egg_icon_list_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (EggIconList),
0, /* n_preallocs */
(GInstanceInitFunc) egg_icon_list_init
};
object_type = g_type_register_static (GTK_TYPE_CONTAINER, "EggIconList", &object_info, 0);
}
return object_type;
}
static void
egg_icon_list_class_init (EggIconListClass *klass)
{
GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
GtkBindingSet *binding_set;
parent_class = g_type_class_peek_parent (klass);
binding_set = gtk_binding_set_by_class (klass);
gobject_class = (GObjectClass *) klass;
widget_class = (GtkWidgetClass *) klass;
gobject_class->finalize = egg_icon_list_finalize;
gobject_class->set_property = egg_icon_list_set_property;
gobject_class->get_property = egg_icon_list_get_property;
widget_class->realize = egg_icon_list_realize;
widget_class->unrealize = egg_icon_list_unrealize;
widget_class->map = egg_icon_list_map;
widget_class->size_request = egg_icon_list_size_request;
widget_class->size_allocate = egg_icon_list_size_allocate;
widget_class->expose_event = egg_icon_list_expose;
widget_class->motion_notify_event = egg_icon_list_motion;
widget_class->button_press_event = egg_icon_list_button_press;
widget_class->button_release_event = egg_icon_list_button_release;
widget_class->key_press_event = egg_icon_list_key_press;
klass->set_scroll_adjustments = egg_icon_list_set_adjustments;
klass->select_all = egg_icon_list_real_select_all;
klass->unselect_all = egg_icon_list_real_unselect_all;
klass->select_cursor_item = egg_icon_list_real_select_cursor_item;
klass->toggle_cursor_item = egg_icon_list_real_toggle_cursor_item;
/* Properties */
g_object_class_install_property (gobject_class,
PROP_SELECTION_MODE,
g_param_spec_enum ("selection_mode",
_("Selection mode"),
_("The selection mode"),
GTK_TYPE_SELECTION_MODE,
GTK_SELECTION_SINGLE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SORTED,
g_param_spec_boolean ("sorted",
_("Sorted"),
_("Icon list is sorted"),
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SORT_ORDER,
g_param_spec_enum ("sort_order",
_("Sort order"),
_("Sort direction the icon list should use"),
GTK_TYPE_SORT_TYPE,
GTK_SORT_ASCENDING,
G_PARAM_READABLE | G_PARAM_WRITABLE));
/* Style properties */
#define _ICON_LIST_TOP_MARGIN 6
#define _ICON_LIST_BOTTOM_MARGIN 6
#define _ICON_LIST_LEFT_MARGIN 6
#define _ICON_LIST_RIGHT_MARGIN 6
#define _ICON_LIST_ICON_PADDING 6
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("icon_padding",
_("Icon padding"),
_("Number of pixels between icons"),
0,
G_MAXINT,
_ICON_LIST_ICON_PADDING,
G_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("top_margin",
_("Top margin"),
_("Number of pixels in top margin"),
0,
G_MAXINT,
_ICON_LIST_TOP_MARGIN,
G_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("bottom_margin",
_("Bottom margin"),
_("Number of pixels in bottom margin"),
0,
G_MAXINT,
_ICON_LIST_BOTTOM_MARGIN,
G_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("left_margin",
_("Left margin"),
_("Number of pixels in left margin"),
0,
G_MAXINT,
_ICON_LIST_LEFT_MARGIN,
G_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("right_margin",
_("Right margin"),
_("Number of pixels in right margin"),
0,
G_MAXINT,
_ICON_LIST_RIGHT_MARGIN,
G_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_boxed ("selection_box_color",
_("Selection Box Color"),
_("Color of the selection box"),
GDK_TYPE_COLOR,
G_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_uchar ("selection_box_alpha",
_("Selection Box Alpha"),
_("Opacity of the selection box"),
0, 0xff,
0x40,
G_PARAM_READABLE));
/* Signals */
widget_class->set_scroll_adjustments_signal =
g_signal_new ("set_scroll_adjustments",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (EggIconListClass, set_scroll_adjustments),
NULL, NULL,
_egg_marshal_VOID__OBJECT_OBJECT,
G_TYPE_NONE, 2,
GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
icon_list_signals[ITEM_ACTIVATED] =
g_signal_new ("item_activated",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (EggIconListClass, item_activated),
NULL, NULL,
g_cclosure_marshal_VOID__BOXED,
G_TYPE_NONE, 1,
EGG_TYPE_ICON_LIST_ITEM);
icon_list_signals[SELECTION_CHANGED] =
g_signal_new ("selection_changed",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (EggIconListClass, selection_changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
icon_list_signals[ITEM_ADDED] =
g_signal_new ("item_added",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (EggIconListClass, item_added),
NULL, NULL,
g_cclosure_marshal_VOID__BOXED,
G_TYPE_NONE, 1, EGG_TYPE_ICON_LIST_ITEM);
icon_list_signals[ITEM_REMOVED] =
g_signal_new ("item_removed",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (EggIconListClass, item_removed),
NULL, NULL,
g_cclosure_marshal_VOID__BOXED,
G_TYPE_NONE, 1, EGG_TYPE_ICON_LIST_ITEM);
icon_list_signals[SELECT_ALL] =
g_signal_new ("select_all",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (EggIconListClass, select_all),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
icon_list_signals[UNSELECT_ALL] =
g_signal_new ("unselect_all",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (EggIconListClass, unselect_all),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
icon_list_signals[SELECT_CURSOR_ITEM] =
g_signal_new ("select_cursor_item",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (EggIconListClass, select_cursor_item),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
icon_list_signals[SELECT_CURSOR_ITEM] =
g_signal_new ("toggle_cursor_item",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (EggIconListClass, toggle_cursor_item),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/* Key bindings */
gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select_all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect_all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select_cursor_item", 0);
gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle_cursor_item", 0);
}
static void
egg_icon_list_init (EggIconList *icon_list)
{
icon_list->priv = g_new0 (EggIconListPrivate, 1);
GTK_WIDGET_SET_FLAGS (icon_list, GTK_CAN_FOCUS);
icon_list->priv->width = 0;
icon_list->priv->height = 0;
icon_list->priv->selection_mode = GTK_SELECTION_SINGLE;
icon_list->priv->sort_order = GTK_SORT_ASCENDING;
icon_list->priv->pressed_button = -1;
icon_list->priv->press_start_x = -1;
icon_list->priv->press_start_y = -1;
icon_list->priv->layout = gtk_widget_create_pango_layout (GTK_WIDGET (icon_list), NULL);
pango_layout_set_wrap (icon_list->priv->layout, PANGO_WRAP_CHAR);
egg_icon_list_set_adjustments (icon_list, NULL, NULL);
}
/* GObject methods */
static void
egg_icon_list_finalize (GObject *object)
{
EggIconList *icon_list;
icon_list = EGG_ICON_LIST (object);
if (icon_list->priv->layout_idle_id != 0)
g_source_remove (icon_list->priv->layout_idle_id);
g_free (icon_list->priv);
(G_OBJECT_CLASS (parent_class)->finalize) (object);
}
static void
egg_icon_list_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
EggIconList *icon_list;
icon_list = EGG_ICON_LIST (object);
switch (prop_id)
{
case PROP_SELECTION_MODE:
egg_icon_list_set_selection_mode (icon_list, g_value_get_enum (value));
break;
case PROP_SORTED:
egg_icon_list_set_sorted (icon_list, g_value_get_boolean (value));
break;
case PROP_SORT_ORDER:
egg_icon_list_set_sort_order (icon_list, g_value_get_enum (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
egg_icon_list_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
EggIconList *icon_list;
icon_list = EGG_ICON_LIST (object);
switch (prop_id)
{
case PROP_SELECTION_MODE:
g_value_set_enum (value, icon_list->priv->selection_mode);
break;
case PROP_SORTED:
g_value_set_boolean (value, icon_list->priv->sorted);
break;
case PROP_SORT_ORDER:
g_value_set_enum (value, icon_list->priv->sort_order);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* GtkWidget signals */
static void
egg_icon_list_realize (GtkWidget *widget)
{
EggIconList *icon_list;
GdkWindowAttr attributes;
gint attributes_mask;
icon_list = EGG_ICON_LIST (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
/* Make the main, clipping window */
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (widget->window, widget);
/* Make the window for the icon list */
attributes.x = 0;
attributes.y = 0;
attributes.width = MAX (icon_list->priv->width, widget->allocation.width);
attributes.height = MAX (icon_list->priv->height, widget->allocation.height);
attributes.event_mask = (GDK_EXPOSURE_MASK |
GDK_SCROLL_MASK |
GDK_POINTER_MOTION_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_KEY_PRESS_MASK |
GDK_KEY_RELEASE_MASK) |
gtk_widget_get_events (widget);
icon_list->priv->bin_window = gdk_window_new (widget->window,
&attributes, attributes_mask);
gdk_window_set_user_data (icon_list->priv->bin_window, widget);
widget->style = gtk_style_attach (widget->style, widget->window);
gdk_window_set_background (icon_list->priv->bin_window, &widget->style->base[widget->state]);
gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
}
static void
egg_icon_list_unrealize (GtkWidget *widget)
{
EggIconList *icon_list;
icon_list = EGG_ICON_LIST (widget);
gdk_window_set_user_data (icon_list->priv->bin_window, NULL);
gdk_window_destroy (icon_list->priv->bin_window);
icon_list->priv->bin_window = NULL;
/* GtkWidget::unrealize destroys children and widget->window */
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
egg_icon_list_map (GtkWidget *widget)
{
EggIconList *icon_list;
icon_list = EGG_ICON_LIST (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
gdk_window_show (icon_list->priv->bin_window);
gdk_window_show (widget->window);
}
static void
egg_icon_list_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
EggIconList *icon_list;
icon_list = EGG_ICON_LIST (widget);
requisition->width = icon_list->priv->width;
requisition->height = icon_list->priv->height;
}
static void
egg_icon_list_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
EggIconList *icon_list;
widget->allocation = *allocation;
icon_list = EGG_ICON_LIST (widget);
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
gdk_window_resize (icon_list->priv->bin_window,
MAX (icon_list->priv->width, allocation->width),
MAX (icon_list->priv->height, allocation->height));
}
icon_list->priv->hadjustment->page_size = allocation->width;
icon_list->priv->hadjustment->page_increment = allocation->width * 0.9;
icon_list->priv->hadjustment->step_increment = allocation->width * 0.1;
icon_list->priv->hadjustment->lower = 0;
icon_list->priv->hadjustment->upper = MAX (allocation->width, icon_list->priv->width);
gtk_adjustment_changed (icon_list->priv->hadjustment);
icon_list->priv->vadjustment->page_size = allocation->height;
icon_list->priv->vadjustment->page_increment = allocation->height * 0.9;
icon_list->priv->vadjustment->step_increment = allocation->width * 0.1;
icon_list->priv->vadjustment->lower = 0;
icon_list->priv->vadjustment->upper = MAX (allocation->height, icon_list->priv->height);
gtk_adjustment_changed (icon_list->priv->vadjustment);
egg_icon_list_layout (icon_list);
}
static gboolean
egg_icon_list_expose (GtkWidget *widget,
GdkEventExpose *expose)
{
EggIconList *icon_list;
GList *icons;
icon_list = EGG_ICON_LIST (widget);
if (expose->window != icon_list->priv->bin_window)
return FALSE;
for (icons = icon_list->priv->items; icons; icons = icons->next) {
EggIconListItem *item = icons->data;
GdkRectangle item_rectangle;
item_rectangle.x = item->x;
item_rectangle.y = item->y;
item_rectangle.width = item->width;
item_rectangle.height = item->height;
if (gdk_region_rect_in (expose->region, &item_rectangle) == GDK_OVERLAP_RECTANGLE_OUT)
continue;
egg_icon_list_paint_item (icon_list, item, &expose->area);
}
if (icon_list->priv->rubberbanding)
{
GdkRectangle *rectangles;
gint n_rectangles;
gdk_region_get_rectangles (expose->region,
&rectangles,
&n_rectangles);
while (n_rectangles--)
egg_icon_list_paint_rubberband (icon_list, &rectangles[n_rectangles]);
g_free (rectangles);
}
return TRUE;
}
static gboolean
egg_icon_list_motion (GtkWidget *widget,
GdkEventMotion *event)
{
EggIconList *icon_list;
icon_list = EGG_ICON_LIST (widget);
egg_icon_list_maybe_begin_dragging_items (icon_list, event);
if (icon_list->priv->rubberbanding)
rubberbanding (widget);
return TRUE;
}
static gboolean
egg_icon_list_button_press (GtkWidget *widget,
GdkEventButton *event)
{
EggIconList *icon_list;
EggIconListItem *item;
gboolean dirty = FALSE;
icon_list = EGG_ICON_LIST (widget);
if (event->window != icon_list->priv->bin_window)
return FALSE;
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
if (event->button == 1 && event->type == GDK_BUTTON_PRESS)
{
if (icon_list->priv->selection_mode == GTK_SELECTION_NONE)
return TRUE;
item = egg_icon_list_get_item_at_pos (icon_list,
event->x, event->y);
if (item != NULL)
{
if (icon_list->priv->selection_mode == GTK_SELECTION_MULTIPLE &&
(event->state & GDK_CONTROL_MASK))
{
item->selected = !item->selected;
dirty = TRUE;
}
else
{
if (!item->selected)
{
egg_icon_list_unselect_all_internal (icon_list, FALSE);
item->selected = TRUE;
dirty = TRUE;
}
}
egg_icon_list_set_cursor_item (icon_list, item);
egg_icon_list_queue_draw_item (icon_list, item);
/* Save press to possibly begin a drag */
if (icon_list->priv->pressed_button < 0)
{
icon_list->priv->pressed_button = event->button;
icon_list->priv->press_start_x = event->x;
icon_list->priv->press_start_y = event->y;
}
if (!icon_list->priv->last_single_clicked)
icon_list->priv->last_single_clicked = item;
}
else
{
if (icon_list->priv->selection_mode != GTK_SELECTION_BROWSE &&
!(event->state & GDK_CONTROL_MASK))
{
dirty = egg_icon_list_unselect_all_internal (icon_list, FALSE);
}
if (icon_list->priv->selection_mode == GTK_SELECTION_MULTIPLE)
egg_icon_list_start_rubberbanding (icon_list, event->x, event->y);
}
}
if (event->button == 1 && event->type == GDK_2BUTTON_PRESS)
{
item = egg_icon_list_get_item_at_pos (icon_list,
event->x, event->y);
if (item && item == icon_list->priv->last_single_clicked)
{
egg_icon_list_item_activated (icon_list, item);
}
icon_list->priv->last_single_clicked = NULL;
}
if (dirty)
g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
return TRUE;
}
static gboolean
egg_icon_list_button_release (GtkWidget *widget,
GdkEventButton *event)
{
EggIconList *icon_list;
icon_list = EGG_ICON_LIST (widget);
if (icon_list->priv->pressed_button == event->button)
icon_list->priv->pressed_button = -1;
egg_icon_list_stop_rubberbanding (icon_list);
return TRUE;
}
static gboolean
egg_icon_list_key_press (GtkWidget *widget,
GdkEventKey *event)
{
if ((* GTK_WIDGET_CLASS (parent_class)->key_press_event) (widget, event))
return TRUE;
return FALSE;
if ((event->state & (GDK_CONTROL_MASK | GDK_MOD1_MASK)) == 0)
egg_icon_list_append_typeahead_string (EGG_ICON_LIST (widget), event->string);
return TRUE;
}
static void
egg_icon_list_select_first_matching_item (EggIconList *icon_list,
const char *pattern)
{
GList *items;
if (pattern == NULL)
return;
for (items = icon_list->priv->items; items; items = items->next)
{
EggIconListItem *item = items->data;
if (strncmp (pattern, item->label, strlen (pattern)) == 0)
{
egg_icon_list_select_item (icon_list, item);
break;
}
}
}
static void
rubberbanding (gpointer data)
{
EggIconList *icon_list;
gint x, y;
GdkRectangle old_area;
GdkRectangle new_area;
GdkRectangle common;
GdkRegion *invalid_region;
icon_list = EGG_ICON_LIST (data);
gdk_window_get_pointer (icon_list->priv->bin_window, &x, &y, NULL);
x = MAX (x, 0);
y = MAX (y, 0);
old_area.x = MIN (icon_list->priv->rubberband_x1,
icon_list->priv->rubberband_x2);
old_area.y = MIN (icon_list->priv->rubberband_y1,
icon_list->priv->rubberband_y2);
old_area.width = ABS (icon_list->priv->rubberband_x2 -
icon_list->priv->rubberband_x1) + 1;
old_area.height = ABS (icon_list->priv->rubberband_y2 -
icon_list->priv->rubberband_y1) + 1;
new_area.x = MIN (icon_list->priv->rubberband_x1, x);
new_area.y = MIN (icon_list->priv->rubberband_y1, y);
new_area.width = ABS (x - icon_list->priv->rubberband_x1) + 1;
new_area.height = ABS (y - icon_list->priv->rubberband_y1) + 1;
invalid_region = gdk_region_rectangle (&old_area);
gdk_region_union_with_rect (invalid_region, &new_area);
gdk_rectangle_intersect (&old_area, &new_area, &common);
if (common.width > 2 && common.height > 2)
{
GdkRegion *common_region;
/* make sure the border is invalidated */
common.x += 1;
common.y += 1;
common.width -= 2;
common.height -= 2;
common_region = gdk_region_rectangle (&common);
gdk_region_subtract (invalid_region, common_region);
gdk_region_destroy (common_region);
}
gdk_window_invalidate_region (icon_list->priv->bin_window, invalid_region, TRUE);
gdk_region_destroy (invalid_region);
icon_list->priv->rubberband_x2 = x;
icon_list->priv->rubberband_y2 = y;
egg_icon_list_update_rubberband_selection (icon_list);
}
static void
egg_icon_list_start_rubberbanding (EggIconList *icon_list,
gint x,
gint y)
{
GList *items;
g_assert (!icon_list->priv->rubberbanding);
for (items = icon_list->priv->items; items; items = items->next)
{
EggIconListItem *item = items->data;
item->selected_before_rubberbanding = item->selected;
}
icon_list->priv->rubberband_x1 = x;
icon_list->priv->rubberband_y1 = y;
icon_list->priv->rubberband_x2 = x;
icon_list->priv->rubberband_y2 = y;
icon_list->priv->rubberbanding = TRUE;
gtk_grab_add (GTK_WIDGET (icon_list));
}
static void
egg_icon_list_stop_rubberbanding (EggIconList *icon_list)
{
if (!icon_list->priv->rubberbanding)
return;
icon_list->priv->rubberbanding = FALSE;
gtk_grab_remove (GTK_WIDGET (icon_list));
gtk_widget_queue_draw (GTK_WIDGET (icon_list));
}
static gint
egg_icon_list_sort_func (EggIconListItem *a,
EggIconListItem *b,
EggIconList *icon_list)
{
gint result;
result = (* icon_list->priv->sort_func) (icon_list, a, b,
icon_list->priv->sort_data);
if (icon_list->priv->sort_order == GTK_SORT_DESCENDING)
result = -result;
return result;
}
static void
egg_icon_list_insert_item_sorted (EggIconList *icon_list,
EggIconListItem *item)
{
GList *list;
GList *tmp_list = icon_list->priv->items;
gint cmp;
egg_icon_list_validate (icon_list);
list = g_list_alloc ();
item->list = list;
item->icon_list = icon_list;
list->data = item;
egg_icon_list_item_ref (item);
if (!icon_list->priv->items)
{
icon_list->priv->items = list;
icon_list->priv->last_item = list;
icon_list->priv->item_count += 1;
egg_icon_list_validate (icon_list);
return;
}
cmp = egg_icon_list_sort_func (item, tmp_list->data, icon_list);
while ((tmp_list->next) && (cmp > 0))
{
tmp_list = tmp_list->next;
cmp = egg_icon_list_sort_func (item, tmp_list->data, icon_list);
}
if ((!tmp_list->next) && (cmp > 0))
{
tmp_list->next = list;
list->prev = tmp_list;
icon_list->priv->last_item = list;
icon_list->priv->item_count += 1;
egg_icon_list_validate (icon_list);
return;
}
if (tmp_list->prev)
{
tmp_list->prev->next = list;
list->prev = tmp_list->prev;
}
list->next = tmp_list;
tmp_list->prev = list;
if (tmp_list == icon_list->priv->items)
icon_list->priv->items = list;
icon_list->priv->item_count += 1;
egg_icon_list_validate (icon_list);
egg_icon_list_queue_layout (icon_list);
}
static void
egg_icon_list_sort (EggIconList *icon_list)
{
egg_icon_list_validate (icon_list);
/* FIXME: We can optimize this */
icon_list->priv->items = g_list_sort_with_data (icon_list->priv->items,
(GCompareDataFunc)egg_icon_list_sort_func,
icon_list);
icon_list->priv->last_item = g_list_last (icon_list->priv->items);
egg_icon_list_validate (icon_list);
egg_icon_list_queue_layout (icon_list);
}
static void
egg_icon_list_validate (EggIconList *icon_list)
{
#if 0
GList *list;
g_print ("----\n");
for (list = icon_list->priv->items; list; list = list->next)
{
EggIconListItem *item = list->data;
g_print ("%s\n", egg_icon_list_item_get_label (item));
}
g_print ("----\n");
#endif
g_assert (g_list_length (icon_list->priv->items) == icon_list->priv->item_count);
g_assert (g_list_last (icon_list->priv->items) == icon_list->priv->last_item);
g_assert (g_list_first (icon_list->priv->last_item) == icon_list->priv->items);
}
static void
egg_icon_list_update_rubberband_selection (EggIconList *icon_list)
{
GList *items;
gint x, y, width, height;
gboolean dirty = FALSE;
x = MIN (icon_list->priv->rubberband_x1,
icon_list->priv->rubberband_x2);
y = MIN (icon_list->priv->rubberband_y1,
icon_list->priv->rubberband_y2);
width = ABS (icon_list->priv->rubberband_x1 -
icon_list->priv->rubberband_x2);
height = ABS (icon_list->priv->rubberband_y1 -
icon_list->priv->rubberband_y2);
for (items = icon_list->priv->items; items; items = items->next)
{
EggIconListItem *item = items->data;
gboolean is_in;
gboolean selected;
is_in = egg_icon_list_item_hit_test (item, x, y, width, height);
selected = is_in ^ item->selected_before_rubberbanding;
if (item->selected != selected)
{
item->selected = selected;
dirty = TRUE;
egg_icon_list_queue_draw_item (icon_list, item);
}
}
if (dirty)
g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
}
static gboolean
egg_icon_list_item_hit_test (EggIconListItem *item,
gint x,
gint y,
gint width,
gint height)
{
/* First try the pixbuf */
if (MIN (x + width, item->pixbuf_x + item->pixbuf_width) - MAX (x, item->pixbuf_x) > 0 &&
MIN (y + height, item->pixbuf_y + item->pixbuf_height) - MAX (y, item->pixbuf_y) > 0)
return TRUE;
/* Then try the text */
if (MIN (x + width, item->layout_x + item->layout_width) - MAX (x, item->layout_x) > 0 &&
MIN (y + height, item->layout_y + item->layout_height) - MAX (y, item->layout_y) > 0)
return TRUE;
return FALSE;
}
static gboolean
egg_icon_list_maybe_begin_dragging_items (EggIconList *icon_list,
GdkEventMotion *event)
{
gboolean retval = FALSE;
gint button;
if (icon_list->priv->pressed_button < 0)
return retval;
if (!gtk_drag_check_threshold (GTK_WIDGET (icon_list),
icon_list->priv->press_start_x,
icon_list->priv->press_start_y,
event->x, event->y))
return retval;
button = icon_list->priv->pressed_button;
icon_list->priv->pressed_button = -1;
{
static GtkTargetEntry row_targets[] = {
{ "EGG_ICON_LIST_ITEMS", GTK_TARGET_SAME_APP, 0 }
};
GtkTargetList *target_list;
GdkDragContext *context;
EggIconListItem *item;
retval = TRUE;
target_list = gtk_target_list_new (row_targets, G_N_ELEMENTS (row_targets));
context = gtk_drag_begin (GTK_WIDGET (icon_list),
target_list, GDK_ACTION_MOVE,
button,
(GdkEvent *)event);
item = egg_icon_list_get_item_at_pos (icon_list,
icon_list->priv->press_start_x,
icon_list->priv->press_start_y);
g_assert (item != NULL);
gtk_drag_set_icon_pixbuf (context, egg_icon_list_item_get_icon (item),
event->x - item->x,
event->y - item->y);
}
return retval;
}
static gboolean
egg_icon_list_unselect_all_internal (EggIconList *icon_list,
gboolean emit)
{
gboolean dirty = FALSE;
GList *items;
for (items = icon_list->priv->items; items; items = items->next)
{
EggIconListItem *item = items->data;
if (item->selected)
{
item->selected = FALSE;
dirty = TRUE;
egg_icon_list_queue_draw_item (icon_list, item);
}
}
if (emit && dirty)
g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
return dirty;
}
/* EggIconList signals */
static void
egg_icon_list_set_adjustments (EggIconList *icon_list,
GtkAdjustment *hadj,
GtkAdjustment *vadj)
{
gboolean need_adjust = FALSE;
if (hadj)
g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
else
hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
if (vadj)
g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
else
vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
if (icon_list->priv->hadjustment && (icon_list->priv->hadjustment != hadj))
{
g_signal_handlers_disconnect_matched (icon_list->priv->hadjustment, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, icon_list);
g_object_unref (icon_list->priv->hadjustment);
}
if (icon_list->priv->vadjustment && (icon_list->priv->vadjustment != vadj))
{
g_signal_handlers_disconnect_matched (icon_list->priv->vadjustment, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, icon_list);
g_object_unref (icon_list->priv->vadjustment);
}
if (icon_list->priv->hadjustment != hadj)
{
icon_list->priv->hadjustment = hadj;
g_object_ref (icon_list->priv->hadjustment);
gtk_object_sink (GTK_OBJECT (icon_list->priv->hadjustment));
g_signal_connect (icon_list->priv->hadjustment, "value_changed",
G_CALLBACK (egg_icon_list_adjustment_changed),
icon_list);
need_adjust = TRUE;
}
if (icon_list->priv->vadjustment != vadj)
{
icon_list->priv->vadjustment = vadj;
g_object_ref (icon_list->priv->vadjustment);
gtk_object_sink (GTK_OBJECT (icon_list->priv->vadjustment));
g_signal_connect (icon_list->priv->vadjustment, "value_changed",
G_CALLBACK (egg_icon_list_adjustment_changed),
icon_list);
need_adjust = TRUE;
}
if (need_adjust)
egg_icon_list_adjustment_changed (NULL, icon_list);
}
static void
egg_icon_list_real_select_all (EggIconList *icon_list)
{
if (icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE)
return;
egg_icon_list_select_all (icon_list);
}
static void
egg_icon_list_real_unselect_all (EggIconList *icon_list)
{
if (icon_list->priv->selection_mode == GTK_SELECTION_BROWSE)
return;
egg_icon_list_unselect_all (icon_list);
}
static void
egg_icon_list_real_select_cursor_item (EggIconList *icon_list)
{
egg_icon_list_unselect_all (icon_list);
if (icon_list->priv->cursor_item != NULL)
egg_icon_list_select_item (icon_list, icon_list->priv->cursor_item);
}
static void
egg_icon_list_real_toggle_cursor_item (EggIconList *icon_list)
{
if (icon_list->priv->selection_mode == GTK_SELECTION_NONE)
return;
/* FIXME: Use another function here */
if (icon_list->priv->cursor_item != NULL)
{
if (icon_list->priv->selection_mode == GTK_SELECTION_BROWSE)
icon_list->priv->cursor_item->selected = TRUE;
else
icon_list->priv->cursor_item->selected = !icon_list->priv->cursor_item->selected;
egg_icon_list_queue_draw_item (icon_list, icon_list->priv->cursor_item);
}
}
/* Internal functions */
static void
egg_icon_list_adjustment_changed (GtkAdjustment *adjustment,
EggIconList *icon_list)
{
if (GTK_WIDGET_REALIZED (icon_list))
{
gdk_window_move (icon_list->priv->bin_window,
- icon_list->priv->hadjustment->value,
- icon_list->priv->vadjustment->value);
gdk_window_process_updates (icon_list->priv->bin_window, TRUE);
}
}
static GList *
egg_icon_list_layout_single_row (EggIconList *icon_list, GList *first_item, gint *y, gint *maximum_width)
{
gint x, current_width, max_height, max_pixbuf_height;
GList *items, *last_item;
gint icon_padding;
gint left_margin, right_margin;
gint maximum_layout_width;
x = 0;
max_height = 0;
max_pixbuf_height = 0;
items = first_item;
current_width = 0;
gtk_widget_style_get (GTK_WIDGET (icon_list),
"icon_padding", &icon_padding,
"left_margin", &left_margin,
"right_margin", &right_margin,
NULL);
x += left_margin;
current_width += left_margin + right_margin;
items = first_item;
while (items)
{
EggIconListItem *item = items->data;
egg_icon_list_calculate_item_size (icon_list, item);
current_width += MAX (item->width, MINIMUM_ICON_ITEM_WIDTH);
/* Don't add padding to the first or last icon */
if (current_width > GTK_WIDGET (icon_list)->allocation.width &&
items != first_item)
break;
maximum_layout_width = MAX (item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH);
item->y = *y;
item->x = x;
if (item->width < MINIMUM_ICON_ITEM_WIDTH) {
item->x += (MINIMUM_ICON_ITEM_WIDTH - item->width) / 2;
x += (MINIMUM_ICON_ITEM_WIDTH - item->width);
}
item->pixbuf_x = item->x + (item->width - item->pixbuf_width) / 2;
item->layout_x = item->x + (item->width - item->layout_width) / 2;
x += item->width;
max_height = MAX (max_height, item->height);
max_pixbuf_height = MAX (max_pixbuf_height, item->pixbuf_height);
if (current_width > *maximum_width)
*maximum_width = current_width;
items = items->next;
}
last_item = items;
*y += max_height + icon_padding;
/* Now go through the row again and align the icons */
for (items = first_item; items != last_item; items = items->next)
{
EggIconListItem *item = items->data;
item->pixbuf_y = item->y + (max_pixbuf_height - item->pixbuf_height);
item->layout_y = item->pixbuf_y + item->pixbuf_height + ICON_TEXT_PADDING;
/* Update the bounding box */
item->y = item->pixbuf_y;
/* We may want to readjust the new y coordinate. */
if (item->y + item->height > *y)
*y = item->y + item->height;
}
return last_item;
}
static void
egg_icon_list_set_adjustment_upper (GtkAdjustment *adj,
gdouble upper)
{
if (upper != adj->upper)
{
gdouble min = MAX (0.0, upper - adj->page_size);
gboolean value_changed = FALSE;
adj->upper = upper;
if (adj->value > min)
{
adj->value = min;
value_changed = TRUE;
}
gtk_adjustment_changed (adj);
if (value_changed)
gtk_adjustment_value_changed (adj);
}
}
static void
egg_icon_list_layout (EggIconList *icon_list)
{
gint y = 0, maximum_width = 0;
GList *icons;
GtkWidget *widget;
gint top_margin, bottom_margin;
widget = GTK_WIDGET (icon_list);
icons = icon_list->priv->items;
gtk_widget_style_get (widget,
"top_margin", &top_margin,
"bottom_margin", &bottom_margin,
NULL);
y += top_margin;
do
{
icons = egg_icon_list_layout_single_row (icon_list, icons, &y, &maximum_width);
}
while (icons != NULL);
if (maximum_width != icon_list->priv->width)
{
icon_list->priv->width = maximum_width;
}
y += bottom_margin;
if (y != icon_list->priv->height)
{
icon_list->priv->height = y;
}
egg_icon_list_set_adjustment_upper (icon_list->priv->hadjustment, icon_list->priv->width);
egg_icon_list_set_adjustment_upper (icon_list->priv->vadjustment, icon_list->priv->height);
if (GTK_WIDGET_REALIZED (icon_list))
{
gdk_window_resize (icon_list->priv->bin_window,
MAX (icon_list->priv->width, widget->allocation.width),
MAX (icon_list->priv->height, widget->allocation.height));
}
if (icon_list->priv->layout_idle_id != 0)
{
g_source_remove (icon_list->priv->layout_idle_id);
icon_list->priv->layout_idle_id = 0;
}
gtk_widget_queue_draw (GTK_WIDGET (icon_list));
}
/* Creates or updates the pango layout and calculates the size */
static void
egg_icon_list_calculate_item_size (EggIconList *icon_list, EggIconListItem *item)
{
int layout_width, layout_height;
int maximum_layout_width;
if (item->width != -1 && item->width != -1)
return;
item->pixbuf_width = gdk_pixbuf_get_width (item->icon);
item->pixbuf_height = gdk_pixbuf_get_height (item->icon);
maximum_layout_width = MAX (item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH);
pango_layout_set_text (icon_list->priv->layout, item->label, -1);
pango_layout_set_alignment (icon_list->priv->layout, PANGO_ALIGN_CENTER);
pango_layout_set_width (icon_list->priv->layout, maximum_layout_width * PANGO_SCALE);
pango_layout_get_pixel_size (icon_list->priv->layout, &layout_width, &layout_height);
item->width = MAX ((layout_width + 2 * ICON_TEXT_PADDING), item->pixbuf_width);
item->height = layout_height + 2 * ICON_TEXT_PADDING + item->pixbuf_height;
item->layout_width = layout_width;
item->layout_height = layout_height;
}
static void
egg_icon_list_item_invalidate_size (EggIconListItem *item)
{
item->width = -1;
item->height = -1;
}
static GdkPixbuf *
create_colorized_pixbuf (GdkPixbuf *src, GdkColor *new_color)
{
gint i, j;
gint width, height, has_alpha, src_row_stride, dst_row_stride;
gint red_value, green_value, blue_value;
guchar *target_pixels;
guchar *original_pixels;
guchar *pixsrc;
guchar *pixdest;
GdkPixbuf *dest;
red_value = new_color->red / 255.0;
green_value = new_color->green / 255.0;
blue_value = new_color->blue / 255.0;
dest = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (src),
gdk_pixbuf_get_has_alpha (src),
gdk_pixbuf_get_bits_per_sample (src),
gdk_pixbuf_get_width (src),
gdk_pixbuf_get_height (src));
has_alpha = gdk_pixbuf_get_has_alpha (src);
width = gdk_pixbuf_get_width (src);
height = gdk_pixbuf_get_height (src);
src_row_stride = gdk_pixbuf_get_rowstride (src);
dst_row_stride = gdk_pixbuf_get_rowstride (dest);
target_pixels = gdk_pixbuf_get_pixels (dest);
original_pixels = gdk_pixbuf_get_pixels (src);
for (i = 0; i < height; i++) {
pixdest = target_pixels + i*dst_row_stride;
pixsrc = original_pixels + i*src_row_stride;
for (j = 0; j < width; j++) {
*pixdest++ = (*pixsrc++ * red_value) >> 8;
*pixdest++ = (*pixsrc++ * green_value) >> 8;
*pixdest++ = (*pixsrc++ * blue_value) >> 8;
if (has_alpha) {
*pixdest++ = *pixsrc++;
}
}
}
return dest;
}
static void
egg_icon_list_paint_item (EggIconList *icon_list,
EggIconListItem *item,
GdkRectangle *area)
{
GdkPixbuf *pixbuf;
GtkStateType state;
if (GTK_WIDGET_HAS_FOCUS (icon_list))
state = GTK_STATE_SELECTED;
else
state = GTK_STATE_ACTIVE;
if (item->selected)
pixbuf = create_colorized_pixbuf (item->icon,
&GTK_WIDGET (icon_list)->style->base[state]);
else
pixbuf = g_object_ref (item->icon);
gdk_draw_pixbuf (icon_list->priv->bin_window, NULL, pixbuf,
0, 0,
item->pixbuf_x, item->pixbuf_y,
item->pixbuf_width, item->pixbuf_height,
GDK_RGB_DITHER_NORMAL,
item->pixbuf_width, item->pixbuf_height);
g_object_unref (pixbuf);
if (item->selected)
{
gdk_draw_rectangle (icon_list->priv->bin_window,
GTK_WIDGET (icon_list)->style->base_gc[state],
TRUE,
item->layout_x - ICON_TEXT_PADDING,
item->layout_y - ICON_TEXT_PADDING,
item->layout_width + 2 * ICON_TEXT_PADDING,
item->layout_height + 2 * ICON_TEXT_PADDING);
}
pango_layout_set_text (icon_list->priv->layout, item->label, -1);
gdk_draw_layout (icon_list->priv->bin_window,
GTK_WIDGET (icon_list)->style->text_gc[item->selected ? state : GTK_STATE_NORMAL],
item->layout_x - ((item->width - item->layout_width) / 2) - (MAX (item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH) - item->width) / 2,
item->layout_y,
icon_list->priv->layout);
if (GTK_WIDGET_HAS_FOCUS (icon_list) &&
item == icon_list->priv->cursor_item)
gtk_paint_focus (GTK_WIDGET (icon_list)->style,
icon_list->priv->bin_window,
item->selected ? GTK_STATE_SELECTED : GTK_STATE_NORMAL,
area,
GTK_WIDGET (icon_list),
"iconlist",
item->layout_x - ICON_TEXT_PADDING,
item->layout_y - ICON_TEXT_PADDING,
item->layout_width + 2 * ICON_TEXT_PADDING,
item->layout_height + 2 * ICON_TEXT_PADDING);
}
static guint32
egg_gdk_color_to_rgb (const GdkColor *color)
{
guint32 result;
result = (0xff0000 | (color->red & 0xff00));
result <<= 8;
result |= ((color->green & 0xff00) | (color->blue >> 8));
return result;
}
static void
egg_icon_list_paint_rubberband (EggIconList *icon_list,
GdkRectangle *area)
{
GdkRectangle rect;
GdkPixbuf *pixbuf;
GdkGC *gc;
GdkRectangle rubber_rect;
GdkColor *fill_color_gdk;
guint fill_color;
guchar fill_color_alpha;
rubber_rect.x = MIN (icon_list->priv->rubberband_x1, icon_list->priv->rubberband_x2);
rubber_rect.y = MIN (icon_list->priv->rubberband_y1, icon_list->priv->rubberband_y2);
rubber_rect.width = ABS (icon_list->priv->rubberband_x1 - icon_list->priv->rubberband_x2) + 1;
rubber_rect.height = ABS (icon_list->priv->rubberband_y1 - icon_list->priv->rubberband_y2) + 1;
if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
return;
gtk_widget_style_get (GTK_WIDGET (icon_list),
"selection_box_color", &fill_color_gdk,
"selection_box_alpha", &fill_color_alpha,
NULL);
if (!fill_color_gdk) {
fill_color_gdk = gdk_color_copy (&GTK_WIDGET (icon_list)->style->base[GTK_STATE_SELECTED]);
}
fill_color = egg_gdk_color_to_rgb (fill_color_gdk) << 8 | fill_color_alpha;
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, rect.width, rect.height);
gdk_pixbuf_fill (pixbuf, fill_color);
gdk_draw_pixbuf (icon_list->priv->bin_window, NULL, pixbuf,
0, 0,
rect.x,rect.y,
rect.width, rect.height,
GDK_RGB_DITHER_NONE,
0, 0);
g_object_unref (pixbuf);
gc = gdk_gc_new (icon_list->priv->bin_window);
gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
gdk_gc_set_clip_rectangle (gc, &rect);
gdk_draw_rectangle (icon_list->priv->bin_window,
gc, FALSE,
rubber_rect.x, rubber_rect.y,
rubber_rect.width - 1, rubber_rect.height - 1);
gdk_color_free (fill_color_gdk);
g_object_unref (gc);
}
static void
egg_icon_list_queue_draw_item (EggIconList *icon_list,
EggIconListItem *item)
{
GdkRectangle rect;
rect.x = item->x;
rect.y = item->y;
rect.width = item->width;
rect.height = item->height;
gdk_window_invalidate_rect (icon_list->priv->bin_window, &rect, TRUE);
}
static gboolean
layout_callback (gpointer user_data)
{
EggIconList *icon_list;
icon_list = EGG_ICON_LIST (user_data);
icon_list->priv->layout_idle_id = 0;
egg_icon_list_layout (icon_list);
return FALSE;
}
static void
egg_icon_list_queue_layout (EggIconList *icon_list)
{
if (icon_list->priv->layout_idle_id != 0)
return;
icon_list->priv->layout_idle_id = g_idle_add (layout_callback, icon_list);
}
static void
egg_icon_list_set_cursor_item (EggIconList *icon_list,
EggIconListItem *item)
{
if (icon_list->priv->cursor_item == item)
return;
if (icon_list->priv->cursor_item != NULL)
egg_icon_list_queue_draw_item (icon_list, icon_list->priv->cursor_item);
icon_list->priv->cursor_item = item;
egg_icon_list_queue_draw_item (icon_list, item);
}
static void
egg_icon_list_append_typeahead_string (EggIconList *icon_list,
const gchar *string)
{
int i;
char *typeahead_string;
if (strlen (string) == 0)
return;
for (i = 0; i < strlen (string); i++)
{
if (!g_ascii_isprint (string[i]))
return;
}
typeahead_string = g_strconcat (icon_list->priv->typeahead_string ?
icon_list->priv->typeahead_string : "",
string, NULL);
g_free (icon_list->priv->typeahead_string);
icon_list->priv->typeahead_string = typeahead_string;
egg_icon_list_select_first_matching_item (icon_list,
icon_list->priv->typeahead_string);
g_print ("wooo: \"%s\"\n", typeahead_string);
}
/* Public API */
GtkWidget *
egg_icon_list_new (void)
{
EggIconList *icon_list;
icon_list = g_object_new (EGG_TYPE_ICON_LIST, NULL);
return GTK_WIDGET (icon_list);
}
EggIconListItem *
egg_icon_list_item_new (GdkPixbuf *icon,
const char *label)
{
EggIconListItem *item;
item = g_new0 (EggIconListItem, 1);
item->ref_count = 1;
item->width = -1;
item->height = -1;
item->label = g_strdup (label);
item->icon = g_object_ref (icon);
return item;
}
void
egg_icon_list_item_ref (EggIconListItem *item)
{
g_return_if_fail (item != NULL);
item->ref_count += 1;
}
void
egg_icon_list_item_unref (EggIconListItem *item)
{
g_return_if_fail (item != NULL);
item->ref_count -= 1;
if (item->ref_count == 0)
{
if (item->destroy_notify)
item->destroy_notify (item->user_data);
g_free (item->label);
g_object_unref (item->icon);
g_free (item);
}
}
void
egg_icon_list_item_set_data (EggIconListItem *item,
gpointer data)
{
egg_icon_list_item_set_data_full (item, data, NULL);
}
void
egg_icon_list_item_set_data_full (EggIconListItem *item,
gpointer data,
GDestroyNotify destroy_notify)
{
g_return_if_fail (item != NULL);
if (item->destroy_notify)
item->destroy_notify (item->user_data);
item->destroy_notify = destroy_notify;
item->user_data = data;
}
gpointer
egg_icon_list_item_get_data (EggIconListItem *item)
{
g_return_val_if_fail (item != NULL, NULL);
return item->user_data;
}
void
egg_icon_list_item_set_label (EggIconListItem *item,
const char *label)
{
g_return_if_fail (item != NULL);
g_return_if_fail (label != NULL);
if (strcmp (item->label, label) == 0)
return;
g_free (item->label);
item->label = g_strdup (label);
egg_icon_list_item_invalidate_size (item);
egg_icon_list_queue_layout (item->icon_list);
g_object_notify (G_OBJECT (item), "label");
}
G_CONST_RETURN gchar *
egg_icon_list_item_get_label (EggIconListItem *item)
{
g_return_val_if_fail (item != NULL, NULL);
return item->label;
}
void
egg_icon_list_item_set_icon (EggIconListItem *item,
GdkPixbuf *icon)
{
g_return_if_fail (item != NULL);
if (icon == item->icon)
return;
g_object_unref (item->icon);
item->icon = g_object_ref (icon);
egg_icon_list_item_invalidate_size (item);
egg_icon_list_queue_layout (item->icon_list);
}
GdkPixbuf *
egg_icon_list_item_get_icon (EggIconListItem *item)
{
g_return_val_if_fail (item != NULL, NULL);
return item->icon;
}
void
egg_icon_list_append_item (EggIconList *icon_list,
EggIconListItem *item)
{
GList *list;
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
g_return_if_fail (item != NULL);
g_return_if_fail (item->icon_list == NULL);
if (icon_list->priv->sorted)
{
egg_icon_list_insert_item_sorted (icon_list, item);
return;
}
egg_icon_list_validate (icon_list);
list = g_list_alloc ();
item->list = list;
item->icon_list = icon_list;
list->data = item;
egg_icon_list_item_ref (item);
if (icon_list->priv->last_item)
{
icon_list->priv->last_item->next = list;
list->prev = icon_list->priv->last_item;
}
else
icon_list->priv->items = list;
icon_list->priv->last_item = list;
icon_list->priv->item_count += 1;
egg_icon_list_validate (icon_list);
g_signal_emit (icon_list, icon_list_signals[ITEM_ADDED], 0, item);
egg_icon_list_queue_layout (icon_list);
}
void
egg_icon_list_prepend_item (EggIconList *icon_list,
EggIconListItem *item)
{
GList *list;
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
g_return_if_fail (item != NULL);
g_return_if_fail (item->icon_list == NULL);
egg_icon_list_validate (icon_list);
list = g_list_alloc ();
item->list = list;
item->icon_list = icon_list;
list->data = item;
egg_icon_list_item_ref (item);
if (icon_list->priv->last_item == NULL)
icon_list->priv->last_item = list;
if (icon_list->priv->items)
icon_list->priv->items->prev = list;
list->next = icon_list->priv->items;
icon_list->priv->items = list;
icon_list->priv->item_count += 1;
egg_icon_list_validate (icon_list);
g_signal_emit (icon_list, icon_list_signals[ITEM_ADDED], 0, item);
egg_icon_list_queue_layout (icon_list);
}
void
egg_icon_list_insert_item_before (EggIconList *icon_list,
EggIconListItem *sibling,
EggIconListItem *item)
{
GList *list;
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
g_return_if_fail (item != NULL);
g_return_if_fail (item->icon_list == NULL);
if (icon_list->priv->sorted)
{
egg_icon_list_insert_item_sorted (icon_list, item);
return;
}
if (sibling == NULL)
egg_icon_list_append_item (icon_list, item);
egg_icon_list_validate (icon_list);
list = g_list_alloc ();
item->list = list;
item->icon_list = icon_list;
list->data = item;
egg_icon_list_item_ref (item);
list->prev = sibling->list->prev;
list->next = sibling->list;
sibling->list->prev->next = list;
sibling->list->prev = list;
if (sibling->list == icon_list->priv->items)
icon_list->priv->items = list;
icon_list->priv->item_count += 1;
egg_icon_list_validate (icon_list);
g_signal_emit (icon_list, icon_list_signals[ITEM_ADDED], 0, item);
egg_icon_list_queue_layout (icon_list);
}
void
egg_icon_list_insert_item_after (EggIconList *icon_list,
EggIconListItem *sibling,
EggIconListItem *item)
{
GList *list;
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
g_return_if_fail (item != NULL);
g_return_if_fail (item->icon_list == NULL);
if (icon_list->priv->sorted)
{
egg_icon_list_insert_item_sorted (icon_list, item);
return;
}
if (sibling == NULL)
{
egg_icon_list_prepend_item (icon_list, item);
return;
}
egg_icon_list_validate (icon_list);
list = g_list_alloc ();
item->list = list;
item->icon_list = icon_list;
list->data = item;
egg_icon_list_item_ref (item);
list->next = sibling->list->next;
list->prev = sibling->list;
sibling->list->next->prev = list;
sibling->list->next = list;
if (sibling->list == icon_list->priv->last_item)
icon_list->priv->last_item = list;
icon_list->priv->item_count += 1;
egg_icon_list_validate (icon_list);
g_signal_emit (icon_list, icon_list_signals[ITEM_ADDED], 0, item);
egg_icon_list_queue_layout (icon_list);
}
void
egg_icon_list_remove_item (EggIconList *icon_list,
EggIconListItem *item)
{
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
g_return_if_fail (item != NULL);
g_return_if_fail (item->icon_list == icon_list);
egg_icon_list_validate (icon_list);
if (item->list->prev)
item->list->prev->next = item->list->next;
if (item->list->next)
item->list->next->prev = item->list->prev;
if (item->list == icon_list->priv->items)
icon_list->priv->items = item->list->next;
if (item->list == icon_list->priv->last_item)
icon_list->priv->last_item = item->list->prev;
g_list_free_1 (item->list);
item->list = NULL;
item->icon_list = NULL;
egg_icon_list_item_invalidate_size (item);
icon_list->priv->item_count -= 1;
egg_icon_list_validate (icon_list);
g_signal_emit (icon_list, icon_list_signals[ITEM_REMOVED], 0, item);
if (item->selected)
{
item->selected = FALSE;
g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
}
#if 0
if (icon_list->priv->cursor_item == item)
g_error ("FIXME: Move to first focused item");
#endif
if (icon_list->priv->last_single_clicked == item)
icon_list->priv->last_single_clicked = NULL;
egg_icon_list_item_unref (item);
egg_icon_list_queue_layout (icon_list);
}
void
egg_icon_list_clear (EggIconList *icon_list)
{
GList *items, *p;
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
items = g_list_copy (icon_list->priv->items);
p = items;
while (items)
{
EggIconListItem *item = items->data;
egg_icon_list_remove_item (icon_list, item);
items = items->next;
}
g_list_free (p);
}
EggIconListItem *
egg_icon_list_get_item_at_pos (EggIconList *icon_list,
gint x,
gint y)
{
GList *items;
g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), NULL);
for (items = icon_list->priv->items; items; items = items->next)
{
EggIconListItem *item = items->data;
if (x > item->x && x < item->x + item->width &&
y > item->y && y < item->y + item->height)
{
gint layout_x = item->x + (item->width - item->layout_width) / 2;
/* Check if the mouse is inside the icon or the label */
if ((x > item->pixbuf_x && x < item->pixbuf_x + item->pixbuf_width &&
y > item->pixbuf_y && y < item->pixbuf_y + item->pixbuf_height) ||
(x > layout_x - ICON_TEXT_PADDING &&
x < layout_x + item->layout_width + ICON_TEXT_PADDING * 2 &&
y > item->layout_y - ICON_TEXT_PADDING
&& y < item->layout_y + item->layout_height + ICON_TEXT_PADDING * 2))
return item;
}
}
return NULL;
}
gint
egg_icon_list_get_item_count (EggIconList *icon_list)
{
g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), 0);
return icon_list->priv->item_count;
}
void
egg_icon_list_foreach (EggIconList *icon_list,
EggIconListForeachFunc func,
gpointer data)
{
GList *list;
for (list = icon_list->priv->items; list; list = list->next)
(* func) (icon_list, list->data, data);
}
void
egg_icon_list_selected_foreach (EggIconList *icon_list,
EggIconListForeachFunc func,
gpointer data)
{
GList *list;
for (list = icon_list->priv->items; list; list = list->next)
{
EggIconListItem *item = list->data;
if (item->selected)
(* func) (icon_list, list->data, data);
}
}
GList *
egg_icon_list_get_selected (EggIconList *icon_list)
{
GList *list, *selected = NULL;
g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), NULL);
for (list = icon_list->priv->items; list; list = list->next)
{
EggIconListItem *item = list->data;
if (item->selected)
selected = g_list_prepend (selected, item);
}
return g_list_reverse (selected);
}
void
egg_icon_list_set_selection_mode (EggIconList *icon_list,
GtkSelectionMode mode)
{
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
if (mode == icon_list->priv->selection_mode)
return;
if (mode == GTK_SELECTION_NONE ||
icon_list->priv->selection_mode == GTK_SELECTION_MULTIPLE)
egg_icon_list_unselect_all (icon_list);
icon_list->priv->selection_mode = mode;
g_object_notify (G_OBJECT (icon_list), "selection_mode");
}
GtkSelectionMode
egg_icon_list_get_selection_mode (EggIconList *icon_list)
{
g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), GTK_SELECTION_SINGLE);
return icon_list->priv->selection_mode;
}
void
egg_icon_list_select_item (EggIconList *icon_list,
EggIconListItem *item)
{
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
g_return_if_fail (item != NULL);
if (item->selected)
return;
if (icon_list->priv->selection_mode == GTK_SELECTION_NONE)
return;
else if (icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE)
egg_icon_list_unselect_all_internal (icon_list, FALSE);
item->selected = TRUE;
g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
egg_icon_list_queue_draw_item (icon_list, item);
}
void
egg_icon_list_unselect_item (EggIconList *icon_list,
EggIconListItem *item)
{
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
g_return_if_fail (item != NULL);
if (!item->selected)
return;
if (icon_list->priv->selection_mode == GTK_SELECTION_NONE ||
icon_list->priv->selection_mode == GTK_SELECTION_BROWSE)
return;
item->selected = FALSE;
g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
egg_icon_list_queue_draw_item (icon_list, item);
}
gboolean
egg_icon_list_item_is_selected (EggIconListItem *item)
{
g_return_val_if_fail (item != NULL, FALSE);
return item->selected;
}
void
egg_icon_list_unselect_all (EggIconList *icon_list)
{
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
egg_icon_list_unselect_all_internal (icon_list, TRUE);
}
void
egg_icon_list_select_all (EggIconList *icon_list)
{
GList *items;
gboolean dirty = FALSE;
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
for (items = icon_list->priv->items; items; items = items->next)
{
EggIconListItem *item = items->data;
if (!item->selected)
{
dirty = TRUE;
item->selected = TRUE;
egg_icon_list_queue_draw_item (icon_list, item);
}
}
if (dirty)
g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0);
}
void
egg_icon_list_set_sorted (EggIconList *icon_list,
gboolean sorted)
{
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
g_return_if_fail (icon_list->priv->sort_func != NULL);
if (icon_list->priv->sorted == sorted)
return;
icon_list->priv->sorted = sorted;
g_object_notify (G_OBJECT (icon_list), "sorted");
if (icon_list->priv->sorted)
egg_icon_list_sort (icon_list);
}
gboolean
egg_icon_list_get_sorted (EggIconList *icon_list)
{
g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), FALSE);
return icon_list->priv->sorted;
}
void
egg_icon_list_set_sort_func (EggIconList *icon_list,
EggIconListItemCompareFunc func,
gpointer data,
GDestroyNotify destroy_notify)
{
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
g_return_if_fail (func != NULL);
if (icon_list->priv->sort_destroy_notify &&
icon_list->priv->sort_data)
(* icon_list->priv->sort_destroy_notify) (icon_list->priv->sort_data);
icon_list->priv->sort_func = func;
icon_list->priv->sort_data = data;
icon_list->priv->sort_destroy_notify = destroy_notify;
}
void
egg_icon_list_set_sort_order (EggIconList *icon_list,
GtkSortType order)
{
g_return_if_fail (EGG_IS_ICON_LIST (icon_list));
if (icon_list->priv->sort_order == order)
return;
icon_list->priv->sort_order = order;
if (icon_list->priv->sorted)
egg_icon_list_sort (icon_list);
g_object_notify (G_OBJECT (icon_list), "sort_order");
}
GtkSortType
egg_icon_list_get_sort_order (EggIconList *icon_list)
{
g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), GTK_SORT_ASCENDING);
return icon_list->priv->sort_order;
}
void
egg_icon_list_item_activated (EggIconList *icon_list,
EggIconListItem *item)
{
g_signal_emit (G_OBJECT (icon_list), icon_list_signals[ITEM_ACTIVATED], 0, item);
}
GList *
egg_icon_list_get_items (EggIconList *icon_list)
{
g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), NULL);
return icon_list->priv->items;
}
EggIconList *
egg_icon_list_item_get_icon_list (EggIconListItem *item)
{
g_return_val_if_fail (item != NULL, NULL);
return item->icon_list;
}
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