/* eggiconlist.h * Copyright (C) 2002 Anders Carlsson * * 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 #include #include #include #include #include #include #include "eggmarshalers.h" #define MINIMUM_ICON_ITEM_WIDTH 100 #define ICON_TEXT_PADDING 3 #define EGG_ICON_LIST_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EGG_TYPE_ICON_LIST, EggIconListPrivate)) #define VALID_MODEL_AND_COLUMNS(obj) (TRUE) struct _EggIconListItem { gint ref_count; GtkTreeIter iter; int index; gint row, col; /* 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; gint text_column; gint markup_column; gint pixbuf_column; GtkSelectionMode selection_mode; GdkWindow *bin_window; GtkTreeModel *model; GList *items; GtkAdjustment *hadjustment; GtkAdjustment *vadjustment; guint layout_idle_id; gboolean rubberbanding; gint rubberband_x1, rubberband_y1; gint rubberband_x2, rubberband_y2; guint scroll_timeout_id; gint scroll_value_diff; gint event_last_x, event_last_y; EggIconListItem *anchor_item; EggIconListItem *cursor_item; guint ctrl_pressed : 1; guint shift_pressed : 1; char *typeahead_string; 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, SELECTION_CHANGED, SELECT_ALL, UNSELECT_ALL, SELECT_CURSOR_ITEM, TOGGLE_CURSOR_ITEM, MOVE_CURSOR, LAST_SIGNAL }; /* Properties */ enum { PROP_0, PROP_PIXBUF_COLUMN, PROP_TEXT_COLUMN, PROP_MARKUP_COLUMN, PROP_SELECTION_MODE, PROP_MODEL, }; 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); /* GtkObject signals */ static void egg_icon_list_destroy (GtkObject *object); /* 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); /* 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); static void egg_icon_list_select_all_between (EggIconList *icon_list, EggIconListItem *anchor, EggIconListItem *cursor, gboolean emit); /* 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_start_rubberbanding (EggIconList *icon_list, gint x, gint y); static void egg_icon_list_stop_rubberbanding (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 void egg_icon_list_invalidate_sizes (EggIconList *icon_list); static void egg_icon_list_add_move_binding (GtkBindingSet *binding_set, guint keyval, guint modmask, GtkMovementStep step, gint count); static gboolean egg_icon_list_real_move_cursor (EggIconList *icon_list, GtkMovementStep step, gint count); static void egg_icon_list_move_cursor_up_down (EggIconList *icon_list, gint count); static void egg_icon_list_move_cursor_page_up_down (EggIconList *icon_list, gint count); static void egg_icon_list_move_cursor_left_right (EggIconList *icon_list, gint count); static void egg_icon_list_move_cursor_start_end (EggIconList *icon_list, gint count); static void egg_icon_list_scroll_to_item (EggIconList *icon_list, EggIconListItem *item); static GdkPixbuf *egg_icon_list_get_item_icon (EggIconList *icon_list, EggIconListItem *item); static void egg_icon_list_update_item_text (EggIconList *icon_list, EggIconListItem *item); static void egg_icon_list_select_item (EggIconList *icon_list, EggIconListItem *item); static void egg_icon_list_unselect_item (EggIconList *icon_list, EggIconListItem *item); static EggIconListItem * egg_icon_list_get_item_at_pos (EggIconList *icon_list, gint x, gint y); static GtkContainerClass *parent_class = NULL; static guint icon_list_signals[LAST_SIGNAL] = { 0 }; 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; GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkBindingSet *binding_set; parent_class = g_type_class_peek_parent (klass); binding_set = gtk_binding_set_by_class (klass); g_type_class_add_private (klass, sizeof (EggIconListPrivate)); gobject_class = (GObjectClass *) klass; object_class = (GtkObjectClass *) 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; object_class->destroy = egg_icon_list_destroy; 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; 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; klass->move_cursor = egg_icon_list_real_move_cursor; /* 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_PIXBUF_COLUMN, g_param_spec_int ("pixbuf_column", _("Pixbuf column"), _("Model column used to retrieve the icon pixbuf from"), -1, G_MAXINT, -1, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_TEXT_COLUMN, g_param_spec_int ("text_column", _("Text column"), _("Model column used to retrieve the text from"), -1, G_MAXINT, -1, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_MARKUP_COLUMN, g_param_spec_int ("markup_column", _("Markup column"), _("Model column used to retrieve the text if using pango markup"), -1, G_MAXINT, -1, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_MODEL, g_param_spec_object ("model", _("Icon List Model"), _("The model for the icon list"), GTK_TYPE_TREE_MODEL, G_PARAM_READWRITE)); /* 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, GTK_TYPE_TREE_PATH); 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[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); icon_list_signals[MOVE_CURSOR] = g_signal_new ("move_cursor", G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (EggIconListClass, move_cursor), NULL, NULL, _egg_marshal_BOOLEAN__ENUM_INT, G_TYPE_BOOLEAN, 2, GTK_TYPE_MOVEMENT_STEP, G_TYPE_INT); /* 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); egg_icon_list_add_move_binding (binding_set, GDK_Up, 0, GTK_MOVEMENT_DISPLAY_LINES, -1); egg_icon_list_add_move_binding (binding_set, GDK_KP_Up, 0, GTK_MOVEMENT_DISPLAY_LINES, -1); egg_icon_list_add_move_binding (binding_set, GDK_Down, 0, GTK_MOVEMENT_DISPLAY_LINES, 1); egg_icon_list_add_move_binding (binding_set, GDK_KP_Down, 0, GTK_MOVEMENT_DISPLAY_LINES, 1); egg_icon_list_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK, GTK_MOVEMENT_DISPLAY_LINES, -1); egg_icon_list_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK, GTK_MOVEMENT_DISPLAY_LINES, 1); egg_icon_list_add_move_binding (binding_set, GDK_Home, 0, GTK_MOVEMENT_BUFFER_ENDS, -1); egg_icon_list_add_move_binding (binding_set, GDK_KP_Home, 0, GTK_MOVEMENT_BUFFER_ENDS, -1); egg_icon_list_add_move_binding (binding_set, GDK_End, 0, GTK_MOVEMENT_BUFFER_ENDS, 1); egg_icon_list_add_move_binding (binding_set, GDK_KP_End, 0, GTK_MOVEMENT_BUFFER_ENDS, 1); egg_icon_list_add_move_binding (binding_set, GDK_Page_Up, 0, GTK_MOVEMENT_PAGES, -1); egg_icon_list_add_move_binding (binding_set, GDK_KP_Page_Up, 0, GTK_MOVEMENT_PAGES, -1); egg_icon_list_add_move_binding (binding_set, GDK_Page_Down, 0, GTK_MOVEMENT_PAGES, 1); egg_icon_list_add_move_binding (binding_set, GDK_KP_Page_Down, 0, GTK_MOVEMENT_PAGES, 1); egg_icon_list_add_move_binding (binding_set, GDK_Right, 0, GTK_MOVEMENT_VISUAL_POSITIONS, 1); egg_icon_list_add_move_binding (binding_set, GDK_Left, 0, GTK_MOVEMENT_VISUAL_POSITIONS, -1); egg_icon_list_add_move_binding (binding_set, GDK_KP_Right, 0, GTK_MOVEMENT_VISUAL_POSITIONS, 1); egg_icon_list_add_move_binding (binding_set, GDK_KP_Left, 0, GTK_MOVEMENT_VISUAL_POSITIONS, -1); } static void egg_icon_list_init (EggIconList *icon_list) { icon_list->priv = EGG_ICON_LIST_GET_PRIVATE (icon_list); icon_list->priv->width = 0; icon_list->priv->height = 0; icon_list->priv->selection_mode = GTK_SELECTION_SINGLE; icon_list->priv->pressed_button = -1; icon_list->priv->press_start_x = -1; icon_list->priv->press_start_y = -1; icon_list->priv->text_column = -1; icon_list->priv->markup_column = -1; icon_list->priv->pixbuf_column = -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_WORD_CHAR); GTK_WIDGET_SET_FLAGS (icon_list, GTK_CAN_FOCUS); egg_icon_list_set_adjustments (icon_list, NULL, NULL); } static void egg_icon_list_destroy (GtkObject *object) { EggIconList *icon_list; icon_list = EGG_ICON_LIST (object); egg_icon_list_set_model (icon_list, NULL); if (icon_list->priv->layout_idle_id != 0) g_source_remove (icon_list->priv->layout_idle_id); if (icon_list->priv->scroll_timeout_id != 0) g_source_remove (icon_list->priv->scroll_timeout_id); (GTK_OBJECT_CLASS (parent_class)->destroy) (object); } /* GObject methods */ static void egg_icon_list_finalize (GObject *object) { EggIconList *icon_list; icon_list = EGG_ICON_LIST (object); g_object_unref (icon_list->priv->layout); (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_PIXBUF_COLUMN: egg_icon_list_set_pixbuf_column (icon_list, g_value_get_int (value)); break; case PROP_TEXT_COLUMN: egg_icon_list_set_text_column (icon_list, g_value_get_int (value)); break; case PROP_MARKUP_COLUMN: egg_icon_list_set_markup_column (icon_list, g_value_get_int (value)); break; case PROP_MODEL: egg_icon_list_set_model (icon_list, g_value_get_object (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_PIXBUF_COLUMN: g_value_set_int (value, icon_list->priv->pixbuf_column); break; case PROP_TEXT_COLUMN: g_value_set_int (value, icon_list->priv->text_column); break; case PROP_MARKUP_COLUMN: g_value_set_int (value, icon_list->priv->markup_column); break; case PROP_MODEL: g_value_set_object (value, icon_list->priv->model); 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 scroll_timeout (gpointer data) { EggIconList *icon_list; gdouble value; icon_list = data; value = MIN (icon_list->priv->vadjustment->value + icon_list->priv->scroll_value_diff, icon_list->priv->vadjustment->upper - icon_list->priv->vadjustment->page_size); gtk_adjustment_set_value (icon_list->priv->vadjustment, value); rubberbanding (icon_list); return TRUE; } static gboolean egg_icon_list_motion (GtkWidget *widget, GdkEventMotion *event) { EggIconList *icon_list; gint abs_y; icon_list = EGG_ICON_LIST (widget); egg_icon_list_maybe_begin_dragging_items (icon_list, event); if (icon_list->priv->rubberbanding) { rubberbanding (widget); abs_y = event->y - icon_list->priv->height * (icon_list->priv->vadjustment->value / (icon_list->priv->vadjustment->upper - icon_list->priv->vadjustment->lower)); if (abs_y < 0 || abs_y > widget->allocation.height) { if (icon_list->priv->scroll_timeout_id == 0) icon_list->priv->scroll_timeout_id = g_timeout_add (30, scroll_timeout, icon_list); if (abs_y < 0) icon_list->priv->scroll_value_diff = abs_y; else icon_list->priv->scroll_value_diff = abs_y - widget->allocation.height; icon_list->priv->event_last_x = event->x; icon_list->priv->event_last_y = event->y; } else if (icon_list->priv->scroll_timeout_id != 0) { g_source_remove (icon_list->priv->scroll_timeout_id); icon_list->priv->scroll_timeout_id = 0; } } 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) { item = egg_icon_list_get_item_at_pos (icon_list, event->x, event->y); if (item != NULL) { egg_icon_list_scroll_to_item (icon_list, item); if (icon_list->priv->selection_mode == GTK_SELECTION_NONE) { egg_icon_list_set_cursor_item (icon_list, item); } else if (icon_list->priv->selection_mode == GTK_SELECTION_MULTIPLE && (event->state & GDK_SHIFT_MASK)) { egg_icon_list_unselect_all_internal (icon_list, FALSE); egg_icon_list_set_cursor_item (icon_list, item); if (!icon_list->priv->anchor_item) icon_list->priv->anchor_item = item; else egg_icon_list_select_all_between (icon_list, icon_list->priv->anchor_item, item, FALSE); dirty = TRUE; } else { if (icon_list->priv->selection_mode == GTK_SELECTION_MULTIPLE && (event->state & GDK_CONTROL_MASK)) { item->selected = !item->selected; egg_icon_list_queue_draw_item (icon_list, item); dirty = TRUE; } else { if (!item->selected) { egg_icon_list_unselect_all_internal (icon_list, FALSE); item->selected = TRUE; egg_icon_list_queue_draw_item (icon_list, item); dirty = TRUE; } } egg_icon_list_set_cursor_item (icon_list, item); icon_list->priv->anchor_item = 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) { GtkTreePath *path; path = gtk_tree_path_new_from_indices (item->index, -1); egg_icon_list_item_activated (icon_list, path); gtk_tree_path_free (path); } 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); if (icon_list->priv->scroll_timeout_id != 0) { g_source_remove (icon_list->priv->scroll_timeout_id); icon_list->priv->scroll_timeout_id = 0; } return TRUE; } 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 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_get_item_icon (icon_list, 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->cursor_item) return; switch (icon_list->priv->selection_mode) { case GTK_SELECTION_NONE: break; case GTK_SELECTION_BROWSE: egg_icon_list_select_item (icon_list, icon_list->priv->cursor_item); break; case GTK_SELECTION_SINGLE: if (icon_list->priv->cursor_item->selected) egg_icon_list_unselect_item (icon_list, icon_list->priv->cursor_item); else egg_icon_list_select_item (icon_list, icon_list->priv->cursor_item); break; case GTK_SELECTION_MULTIPLE: icon_list->priv->cursor_item->selected = !icon_list->priv->cursor_item->selected; g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0); egg_icon_list_queue_draw_item (icon_list, icon_list->priv->cursor_item); break; } } /* 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); if (icon_list->priv->rubberbanding) rubberbanding (GTK_WIDGET (icon_list)); 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 row) { 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; gint col; gboolean rtl = gtk_widget_get_direction (GTK_WIDGET (icon_list)) == GTK_TEXT_DIR_RTL; x = 0; col = 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 = rtl ? GTK_WIDGET (icon_list)->allocation.width - item->width - x : x; if (item->width < MINIMUM_ICON_ITEM_WIDTH) { if (rtl) item->x -= (MINIMUM_ICON_ITEM_WIDTH - item->width) / 2; else 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; item->row = row; item->col = col; col++; 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; if (rtl) item->col = col - 1 - item->col; } 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; gint row; 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; row = 0; do { icons = egg_icon_list_layout_single_row (icon_list, icons, &y, &maximum_width, row); row++; } 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)); } /* 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; GdkPixbuf *pixbuf; if (item->width != -1 && item->width != -1) return; if (icon_list->priv->pixbuf_column != -1) { pixbuf = egg_icon_list_get_item_icon (icon_list, item); item->pixbuf_width = gdk_pixbuf_get_width (pixbuf); item->pixbuf_height = gdk_pixbuf_get_height (pixbuf); g_object_unref (pixbuf); } else { item->pixbuf_width = 0; item->pixbuf_height = 0; } maximum_layout_width = MAX (item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH); if (icon_list->priv->markup_column != 1 || icon_list->priv->text_column != -1) { egg_icon_list_update_item_text (icon_list, item); 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; } else { item->layout_width = 0; item->layout_height = 0; } } static void egg_icon_list_invalidate_sizes (EggIconList *icon_list) { g_list_foreach (icon_list->priv->items, (GFunc)egg_icon_list_item_invalidate_size, NULL); } 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, *tmp; GtkStateType state; if (!VALID_MODEL_AND_COLUMNS (icon_list)) return; if (GTK_WIDGET_HAS_FOCUS (icon_list)) state = GTK_STATE_SELECTED; else state = GTK_STATE_ACTIVE; if (icon_list->priv->pixbuf_column != -1) { tmp = egg_icon_list_get_item_icon (icon_list, item); if (item->selected) { pixbuf = create_colorized_pixbuf (tmp, >K_WIDGET (icon_list)->style->base[state]); g_object_unref (tmp); } else pixbuf = tmp; 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 (icon_list->priv->text_column != -1) { 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); } egg_icon_list_update_item_text (icon_list, item); 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 (>K_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; if (icon_list->priv->bin_window) 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); } /* 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); } static EggIconListItem * egg_icon_list_item_new (void) { EggIconListItem *item; item = g_new0 (EggIconListItem, 1); item->ref_count = 1; item->width = -1; item->height = -1; 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) { g_free (item); } } static void egg_icon_list_update_item_text (EggIconList *icon_list, EggIconListItem *item) { gboolean iters_persist; GtkTreeIter iter; GtkTreePath *path; gchar *text; iters_persist = gtk_tree_model_get_flags (icon_list->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST; if (!iters_persist) { path = gtk_tree_path_new_from_indices (item->index, -1); gtk_tree_model_get_iter (icon_list->priv->model, &iter, path); gtk_tree_path_free (path); } else iter = item->iter; if (icon_list->priv->markup_column != -1) { gtk_tree_model_get (icon_list->priv->model, &iter, icon_list->priv->markup_column, &text, -1); pango_layout_set_markup (icon_list->priv->layout, text, -1); } else { gtk_tree_model_get (icon_list->priv->model, &iter, icon_list->priv->text_column, &text, -1); pango_layout_set_text (icon_list->priv->layout, text, -1); } g_free (text); } static GdkPixbuf * egg_icon_list_get_item_icon (EggIconList *icon_list, EggIconListItem *item) { gboolean iters_persist; GtkTreeIter iter; GtkTreePath *path; GdkPixbuf *pixbuf; g_return_val_if_fail (item != NULL, NULL); iters_persist = gtk_tree_model_get_flags (icon_list->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST; if (!iters_persist) { path = gtk_tree_path_new_from_indices (item->index, -1); gtk_tree_model_get_iter (icon_list->priv->model, &iter, path); gtk_tree_path_free (path); } else iter = item->iter; gtk_tree_model_get (icon_list->priv->model, &iter, icon_list->priv->pixbuf_column, &pixbuf, -1); return pixbuf; } static EggIconListItem * egg_icon_list_get_item_at_pos (EggIconList *icon_list, gint x, gint y) { GList *items; 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; } GtkTreePath * egg_icon_list_get_path_at_pos (EggIconList *icon_list, gint x, gint y) { EggIconListItem *item; GtkTreePath *path; g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), NULL); item = egg_icon_list_get_item_at_pos (icon_list, x, y); if (!item) return NULL; path = gtk_tree_path_new_from_indices (item->index, -1); return path; } 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; GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1); if (item->selected) (* func) (icon_list, path, data); gtk_tree_path_free (path); } } 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; } static 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_select_path (EggIconList *icon_list, GtkTreePath *path) { EggIconListItem *item; g_return_if_fail (EGG_IS_ICON_LIST (icon_list)); g_return_if_fail (path != NULL); item = g_list_nth (icon_list->priv->items, gtk_tree_path_get_indices(path)[0])->data; egg_icon_list_select_item (icon_list, item); } void egg_icon_list_unselect_path (EggIconList *icon_list, GtkTreePath *path) { EggIconListItem *item; g_return_if_fail (EGG_IS_ICON_LIST (icon_list)); g_return_if_fail (path != NULL); item = g_list_nth (icon_list->priv->items, gtk_tree_path_get_indices(path)[0])->data; egg_icon_list_unselect_item (icon_list, item); } static 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_path_is_selected (EggIconList *icon_list, GtkTreePath *path) { EggIconListItem *item; g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), FALSE); g_return_val_if_fail (path != NULL, FALSE); item = g_list_nth (icon_list->priv->items, gtk_tree_path_get_indices(path)[0])->data; 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_item_activated (EggIconList *icon_list, GtkTreePath *path) { g_signal_emit (G_OBJECT (icon_list), icon_list_signals[ITEM_ACTIVATED], 0, path); } 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; } static void egg_icon_list_row_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { EggIconListItem *item; gint index; EggIconList *icon_list; icon_list = EGG_ICON_LIST (data); index = gtk_tree_path_get_indices(path)[0]; item = g_list_nth (icon_list->priv->items, index)->data; egg_icon_list_item_invalidate_size (item); egg_icon_list_queue_layout (icon_list); } static void egg_icon_list_row_inserted (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { gint length, index; EggIconListItem *item; gboolean iters_persist; EggIconList *icon_list; icon_list = EGG_ICON_LIST (data); iters_persist = gtk_tree_model_get_flags (icon_list->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST; length = gtk_tree_model_iter_n_children (model, NULL); index = gtk_tree_path_get_indices(path)[0]; item = egg_icon_list_item_new (); if (iters_persist) item->iter = *iter; item->index = index; /* FIXME: We can be more efficient here, we can store a tail pointer and use that when appending (which is a rather common operation) */ icon_list->priv->items = g_list_insert (icon_list->priv->items, item, index); } static void egg_icon_list_row_deleted (GtkTreeModel *model, GtkTreePath *path, gpointer data) { gint index; EggIconList *icon_list; EggIconListItem *item; GList *list; icon_list = EGG_ICON_LIST (data); index = gtk_tree_path_get_indices(path)[0]; list = g_list_nth (icon_list->priv->items, index); item = list->data; item->index = -1; egg_icon_list_item_unref (item); icon_list->priv->items = g_list_delete_link (icon_list->priv->items, list); } static void egg_icon_list_rows_reordered (GtkTreeModel *model, GtkTreePath *parent, GtkTreeIter *iter, gint *new_order, gpointer data) { int i; int length; EggIconList *icon_list; GList *items = NULL, *list; gint *inverted_order; EggIconListItem **item_array; icon_list = EGG_ICON_LIST (data); length = gtk_tree_model_iter_n_children (model, NULL); inverted_order = g_new (gint, length); /* Invert the array */ for (i = 0; i < length; i++) inverted_order[new_order[i]] = i; item_array = g_new (EggIconListItem *, length); for (i = 0, list = icon_list->priv->items; list != NULL; list = list->next, i++) item_array[inverted_order[i]] = list->data; g_free (inverted_order); for (i = 0; i < length; i++) items = g_list_prepend (items, item_array[i]); g_free (item_array); g_list_free (icon_list->priv->items); icon_list->priv->items = g_list_reverse (items); } static void egg_icon_list_build_items (EggIconList *icon_list) { GtkTreeIter iter; int i; gboolean iters_persist; GList *items = NULL; iters_persist = gtk_tree_model_get_flags (icon_list->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST; if (!gtk_tree_model_get_iter_first (icon_list->priv->model, &iter)) return; i = 0; do { EggIconListItem *item = egg_icon_list_item_new (); if (iters_persist) item->iter = iter; item->index = i; i++; items = g_list_prepend (items, item); } while (gtk_tree_model_iter_next (icon_list->priv->model, &iter)); icon_list->priv->items = g_list_reverse (items); } void egg_icon_list_set_model (EggIconList *icon_list, GtkTreeModel *model) { g_return_if_fail (EGG_IS_ICON_LIST (icon_list)); if (model != NULL) g_return_if_fail (GTK_IS_TREE_MODEL (model)); if (icon_list->priv->model == model) return; if (model) { GType pixbuf_column_type, text_column_type; g_return_if_fail (gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_LIST_ONLY); if (icon_list->priv->pixbuf_column != -1) { pixbuf_column_type = gtk_tree_model_get_column_type (icon_list->priv->model, icon_list->priv->pixbuf_column); g_return_if_fail (pixbuf_column_type == GDK_TYPE_PIXBUF); } if (icon_list->priv->text_column != -1) { text_column_type = gtk_tree_model_get_column_type (icon_list->priv->model, icon_list->priv->pixbuf_column); g_return_if_fail (text_column_type == G_TYPE_STRING); } } if (icon_list->priv->model) { g_signal_handlers_disconnect_by_func (icon_list->priv->model, egg_icon_list_row_changed, icon_list); g_signal_handlers_disconnect_by_func (icon_list->priv->model, egg_icon_list_row_inserted, icon_list); g_signal_handlers_disconnect_by_func (icon_list->priv->model, egg_icon_list_row_deleted, icon_list); g_signal_handlers_disconnect_by_func (icon_list->priv->model, egg_icon_list_rows_reordered, icon_list); g_object_unref (icon_list->priv->model); g_list_foreach (icon_list->priv->items, (GFunc)egg_icon_list_item_unref, NULL); g_list_free (icon_list->priv->items); icon_list->priv->items = NULL; } icon_list->priv->model = model; if (icon_list->priv->model) { g_object_ref (icon_list->priv->model); g_signal_connect (icon_list->priv->model, "row_changed", G_CALLBACK (egg_icon_list_row_changed), icon_list); g_signal_connect (icon_list->priv->model, "row_inserted", G_CALLBACK (egg_icon_list_row_inserted), icon_list); g_signal_connect (icon_list->priv->model, "row_deleted", G_CALLBACK (egg_icon_list_row_deleted), icon_list); g_signal_connect (icon_list->priv->model, "rows_reordered", G_CALLBACK (egg_icon_list_rows_reordered), icon_list); egg_icon_list_build_items (icon_list); } } GtkTreeModel * egg_icon_list_get_model (EggIconList *icon_list) { g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), NULL); return icon_list->priv->model; } void egg_icon_list_set_text_column (EggIconList *icon_list, int column) { if (column == icon_list->priv->text_column) return; if (column == -1) icon_list->priv->text_column = -1; else { if (icon_list->priv->model != NULL) { GType column_type; column_type = gtk_tree_model_get_column_type (icon_list->priv->model, column); g_return_if_fail (column_type == G_TYPE_STRING); } icon_list->priv->text_column = column; } egg_icon_list_invalidate_sizes (icon_list); egg_icon_list_queue_layout (icon_list); g_object_notify (G_OBJECT (icon_list), "text_column"); } gint egg_icon_list_get_text_column (EggIconList *icon_list) { g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), -1); return icon_list->priv->text_column; } void egg_icon_list_set_markup_column (EggIconList *icon_list, int column) { if (column == icon_list->priv->markup_column) return; if (column == -1) icon_list->priv->markup_column = -1; else { if (icon_list->priv->model != NULL) { GType column_type; column_type = gtk_tree_model_get_column_type (icon_list->priv->model, column); g_return_if_fail (column_type == G_TYPE_STRING); } icon_list->priv->markup_column = column; } egg_icon_list_invalidate_sizes (icon_list); egg_icon_list_queue_layout (icon_list); g_object_notify (G_OBJECT (icon_list), "markup_column"); } gint egg_icon_list_get_markup_column (EggIconList *icon_list) { g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), -1); return icon_list->priv->markup_column; } void egg_icon_list_set_pixbuf_column (EggIconList *icon_list, int column) { if (column == icon_list->priv->pixbuf_column) return; if (column == -1) icon_list->priv->pixbuf_column = -1; else { if (icon_list->priv->model != NULL) { GType column_type; column_type = gtk_tree_model_get_column_type (icon_list->priv->model, column); g_return_if_fail (column_type == GDK_TYPE_PIXBUF); } icon_list->priv->pixbuf_column = column; } egg_icon_list_invalidate_sizes (icon_list); egg_icon_list_queue_layout (icon_list); g_object_notify (G_OBJECT (icon_list), "pixbuf_column"); } gint egg_icon_list_get_pixbuf_column (EggIconList *icon_list) { g_return_val_if_fail (EGG_IS_ICON_LIST (icon_list), -1); return icon_list->priv->pixbuf_column; } static void egg_icon_list_add_move_binding (GtkBindingSet *binding_set, guint keyval, guint modmask, GtkMovementStep step, gint count) { gtk_binding_entry_add_signal (binding_set, keyval, modmask, "move_cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count); gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK, "move_cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count); if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK) return; gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "move_cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count); gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK, "move_cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count); } static gboolean egg_icon_list_real_move_cursor (EggIconList *icon_list, GtkMovementStep step, gint count) { GdkModifierType state; g_return_val_if_fail (EGG_ICON_LIST (icon_list), FALSE); g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS || step == GTK_MOVEMENT_VISUAL_POSITIONS || step == GTK_MOVEMENT_DISPLAY_LINES || step == GTK_MOVEMENT_PAGES || step == GTK_MOVEMENT_BUFFER_ENDS, FALSE); if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (icon_list))) return FALSE; gtk_widget_grab_focus (GTK_WIDGET (icon_list)); if (gtk_get_current_event_state (&state)) { if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK) icon_list->priv->ctrl_pressed = TRUE; if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK) icon_list->priv->shift_pressed = TRUE; } /* else we assume not pressed */ switch (step) { case GTK_MOVEMENT_LOGICAL_POSITIONS: case GTK_MOVEMENT_VISUAL_POSITIONS: egg_icon_list_move_cursor_left_right (icon_list, count); break; case GTK_MOVEMENT_DISPLAY_LINES: egg_icon_list_move_cursor_up_down (icon_list, count); break; case GTK_MOVEMENT_PAGES: egg_icon_list_move_cursor_page_up_down (icon_list, count); break; case GTK_MOVEMENT_BUFFER_ENDS: egg_icon_list_move_cursor_start_end (icon_list, count); break; default: g_assert_not_reached (); } icon_list->priv->ctrl_pressed = FALSE; icon_list->priv->shift_pressed = FALSE; return TRUE; } static EggIconListItem * find_item (EggIconList *icon_list, EggIconListItem *current, gint row_ofs, gint col_ofs) { gint row, col; GList *items; EggIconListItem *item; /* FIXME: this could be more efficient */ row = current->row + row_ofs; col = current->col + col_ofs; for (items = icon_list->priv->items; items; items = items->next) { item = items->data; if (item->row == row && item->col == col) return item; } return NULL; } static EggIconListItem * find_item_page_up_down (EggIconList *icon_list, EggIconListItem *current, gint count) { GList *item, *next; gint y, col; col = current->col; y = current->y + count * icon_list->priv->vadjustment->page_size; item = g_list_find (icon_list->priv->items, current); if (count > 0) { while (item) { for (next = item->next; next; next = next->next) { if (((EggIconListItem *)next->data)->col == col) break; } if (!next || ((EggIconListItem *)next->data)->y > y) break; item = next; } } else { while (item) { for (next = item->prev; next; next = next->prev) { if (((EggIconListItem *)next->data)->col == col) break; } if (!next || ((EggIconListItem *)next->data)->y < y) break; item = next; } } if (item) return item->data; return NULL; } static void egg_icon_list_select_all_between (EggIconList *icon_list, EggIconListItem *anchor, EggIconListItem *cursor, gboolean emit) { GList *items; EggIconListItem *item; gint row1, row2, col1, col2; if (anchor->row < cursor->row) { row1 = anchor->row; row2 = cursor->row; } else { row1 = cursor->row; row2 = anchor->row; } if (anchor->col < cursor->col) { col1 = anchor->col; col2 = cursor->col; } else { col1 = cursor->col; col2 = anchor->col; } for (items = icon_list->priv->items; items; items = items->next) { item = items->data; if (row1 <= item->row && item->row <= row2 && col1 <= item->col && item->col <= col2) { item->selected = TRUE; egg_icon_list_queue_draw_item (icon_list, item); } } if (emit) g_signal_emit (icon_list, icon_list_signals[SELECTION_CHANGED], 0); } static void egg_icon_list_move_cursor_up_down (EggIconList *icon_list, gint count) { EggIconListItem *item; if (!GTK_WIDGET_HAS_FOCUS (icon_list)) return; if (!icon_list->priv->cursor_item) { GList *list; if (count > 0) list = icon_list->priv->items; else list = g_list_last (icon_list->priv->items); item = list->data; } else item = find_item (icon_list, icon_list->priv->cursor_item, count, 0); if (!item) return; if (icon_list->priv->ctrl_pressed || !icon_list->priv->shift_pressed || !icon_list->priv->anchor_item || icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE) icon_list->priv->anchor_item = item; egg_icon_list_set_cursor_item (icon_list, item); if (!icon_list->priv->ctrl_pressed && icon_list->priv->selection_mode != GTK_SELECTION_NONE) { egg_icon_list_unselect_all (icon_list); egg_icon_list_select_all_between (icon_list, icon_list->priv->anchor_item, item, TRUE); } egg_icon_list_scroll_to_item (icon_list, item); } static void egg_icon_list_move_cursor_page_up_down (EggIconList *icon_list, gint count) { EggIconListItem *item; if (!GTK_WIDGET_HAS_FOCUS (icon_list)) return; if (!icon_list->priv->cursor_item) { GList *list; if (count > 0) list = icon_list->priv->items; else list = g_list_last (icon_list->priv->items); item = list->data; } else item = find_item_page_up_down (icon_list, icon_list->priv->cursor_item, count); if (!item) return; if (icon_list->priv->ctrl_pressed || !icon_list->priv->shift_pressed || !icon_list->priv->anchor_item || icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE) icon_list->priv->anchor_item = item; egg_icon_list_set_cursor_item (icon_list, item); if (!icon_list->priv->ctrl_pressed && icon_list->priv->selection_mode != GTK_SELECTION_NONE) { egg_icon_list_unselect_all (icon_list); egg_icon_list_select_all_between (icon_list, icon_list->priv->anchor_item, item, TRUE); } egg_icon_list_scroll_to_item (icon_list, item); } static void egg_icon_list_move_cursor_left_right (EggIconList *icon_list, gint count) { EggIconListItem *item; if (!GTK_WIDGET_HAS_FOCUS (icon_list)) return; if (!icon_list->priv->cursor_item) { GList *list; if (count > 0) list = icon_list->priv->items; else list = g_list_last (icon_list->priv->items); item = list->data; } else item = find_item (icon_list, icon_list->priv->cursor_item, 0, count); if (!item) return; if (icon_list->priv->ctrl_pressed || !icon_list->priv->shift_pressed || !icon_list->priv->anchor_item || icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE) icon_list->priv->anchor_item = item; egg_icon_list_set_cursor_item (icon_list, item); if (!icon_list->priv->ctrl_pressed && icon_list->priv->selection_mode != GTK_SELECTION_NONE) { egg_icon_list_unselect_all (icon_list); egg_icon_list_select_all_between (icon_list, icon_list->priv->anchor_item, item, TRUE); } egg_icon_list_scroll_to_item (icon_list, item); } static void egg_icon_list_move_cursor_start_end (EggIconList *icon_list, gint count) { EggIconListItem *item; GList *list; if (!GTK_WIDGET_HAS_FOCUS (icon_list)) return; if (count < 0) list = icon_list->priv->items; else list = g_list_last (icon_list->priv->items); item = list->data; if (!item) return; if (icon_list->priv->ctrl_pressed || !icon_list->priv->shift_pressed || !icon_list->priv->anchor_item || icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE) icon_list->priv->anchor_item = item; egg_icon_list_set_cursor_item (icon_list, item); if (!icon_list->priv->ctrl_pressed && icon_list->priv->selection_mode != GTK_SELECTION_NONE) { egg_icon_list_unselect_all (icon_list); egg_icon_list_select_all_between (icon_list, icon_list->priv->anchor_item, item, TRUE); } egg_icon_list_scroll_to_item (icon_list, item); } static void egg_icon_list_scroll_to_item (EggIconList *icon_list, EggIconListItem *item) { gint y, height; gdouble value; gdk_window_get_geometry (icon_list->priv->bin_window, NULL, &y, NULL, &height, NULL); if (y + item->y < 0) { value = icon_list->priv->vadjustment->value + y + item->y; gtk_adjustment_set_value (icon_list->priv->vadjustment, value); } else if (y + item->y + item->height > GTK_WIDGET (icon_list)->allocation.height) { value = icon_list->priv->vadjustment->value + y + item->y + item->height - GTK_WIDGET (icon_list)->allocation.height; gtk_adjustment_set_value (icon_list->priv->vadjustment, value); } }