forked from AuroraMiddleware/gtk
Implement keynav.
Fri Jun 18 01:15:33 2004 Matthias Clasen <maclas@gmx.de> * libegg/iconlist/eggiconlist.c: Implement keynav.
This commit is contained in:
Matthias Clasen
Matthias Clasen
parent
11a9e21ab0
commit
67362c6b97
@ -29,7 +29,6 @@
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#include "eggintl.h"
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#include "eggmarshalers.h"
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#define MINIMUM_ICON_ITEM_WIDTH 100
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#define ICON_TEXT_PADDING 3
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@ -48,6 +47,8 @@ struct _EggIconListItem
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gpointer user_data;
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GDestroyNotify destroy_notify;
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gint row, col;
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/* Bounding boxes */
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gint x, y;
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gint width, height;
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@ -87,7 +88,11 @@ struct _EggIconListPrivate
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gint scroll_value_diff;
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gint event_last_x, event_last_y;
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EggIconListItem *anchor_item;
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EggIconListItem *cursor_item;
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guint ctrl_pressed : 1;
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guint shift_pressed : 1;
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char *typeahead_string;
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@ -184,6 +189,10 @@ static void egg_icon_list_real_select_all (EggIconList
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static void egg_icon_list_real_unselect_all (EggIconList *icon_list);
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static void egg_icon_list_real_select_cursor_item (EggIconList *icon_list);
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static void egg_icon_list_real_toggle_cursor_item (EggIconList *icon_list);
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static void egg_icon_list_select_all_between (EggIconList *icon_list,
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EggIconListItem *anchor,
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EggIconListItem *cursor,
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gboolean emit);
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/* Internal functions */
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static void egg_icon_list_adjustment_changed (GtkAdjustment *adjustment,
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@ -224,11 +233,28 @@ static gboolean egg_icon_list_maybe_begin_dragging_items (EggIconList
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GdkEventMotion *event);
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static gboolean egg_icon_list_unselect_all_internal (EggIconList *icon_list,
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gboolean emit);
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static void egg_icon_list_calculate_item_size (EggIconList *icon_list, EggIconListItem *item);
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static void egg_icon_list_calculate_item_size (EggIconList *icon_list,
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EggIconListItem *item);
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static void rubberbanding (gpointer data);
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static void egg_icon_list_item_invalidate_size (EggIconListItem *item);
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static void egg_icon_list_add_move_binding (GtkBindingSet *binding_set,
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guint keyval,
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guint modmask,
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GtkMovementStep step,
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gint count);
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static gboolean egg_icon_list_real_move_cursor (EggIconList *icon_list,
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GtkMovementStep step,
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gint count);
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static void egg_icon_list_move_cursor_up_down (EggIconList *icon_list,
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gint count);
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static void egg_icon_list_move_cursor_page_up_down (EggIconList *icon_list,
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gint count);
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static void egg_icon_list_move_cursor_left_right (EggIconList *icon_list,
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gint count);
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static void egg_icon_list_move_cursor_start_end (EggIconList *icon_list,
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gint count);
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static void egg_icon_list_scroll_to_item (EggIconList *icon_list,
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EggIconListItem *item);
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static GtkContainerClass *parent_class = NULL;
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static guint icon_list_signals[LAST_SIGNAL] = { 0 };
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@ -305,6 +331,7 @@ egg_icon_list_class_init (EggIconListClass *klass)
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klass->unselect_all = egg_icon_list_real_unselect_all;
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klass->select_cursor_item = egg_icon_list_real_select_cursor_item;
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klass->toggle_cursor_item = egg_icon_list_real_toggle_cursor_item;
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klass->move_cursor = egg_icon_list_real_move_cursor;
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/* Properties */
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g_object_class_install_property (gobject_class,
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@ -480,13 +507,69 @@ egg_icon_list_class_init (EggIconListClass *klass)
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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icon_list_signals[MOVE_CURSOR] =
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g_signal_new ("move_cursor",
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G_TYPE_FROM_CLASS (gobject_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (EggIconListClass, move_cursor),
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NULL, NULL,
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_egg_marshal_BOOLEAN__ENUM_INT,
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G_TYPE_BOOLEAN, 2,
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GTK_TYPE_MOVEMENT_STEP,
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G_TYPE_INT);
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/* Key bindings */
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gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select_all", 0);
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gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect_all", 0);
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gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select_cursor_item", 0);
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gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle_cursor_item", 0);
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}
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egg_icon_list_add_move_binding (binding_set, GDK_Up, 0,
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GTK_MOVEMENT_DISPLAY_LINES, -1);
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egg_icon_list_add_move_binding (binding_set, GDK_KP_Up, 0,
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GTK_MOVEMENT_DISPLAY_LINES, -1);
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egg_icon_list_add_move_binding (binding_set, GDK_Down, 0,
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GTK_MOVEMENT_DISPLAY_LINES, 1);
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egg_icon_list_add_move_binding (binding_set, GDK_KP_Down, 0,
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GTK_MOVEMENT_DISPLAY_LINES, 1);
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egg_icon_list_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK,
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GTK_MOVEMENT_DISPLAY_LINES, -1);
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egg_icon_list_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK,
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GTK_MOVEMENT_DISPLAY_LINES, 1);
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egg_icon_list_add_move_binding (binding_set, GDK_Home, 0,
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GTK_MOVEMENT_BUFFER_ENDS, -1);
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egg_icon_list_add_move_binding (binding_set, GDK_KP_Home, 0,
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GTK_MOVEMENT_BUFFER_ENDS, -1);
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egg_icon_list_add_move_binding (binding_set, GDK_End, 0,
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GTK_MOVEMENT_BUFFER_ENDS, 1);
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egg_icon_list_add_move_binding (binding_set, GDK_KP_End, 0,
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GTK_MOVEMENT_BUFFER_ENDS, 1);
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egg_icon_list_add_move_binding (binding_set, GDK_Page_Up, 0,
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GTK_MOVEMENT_PAGES, -1);
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egg_icon_list_add_move_binding (binding_set, GDK_KP_Page_Up, 0,
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GTK_MOVEMENT_PAGES, -1);
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egg_icon_list_add_move_binding (binding_set, GDK_Page_Down, 0,
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GTK_MOVEMENT_PAGES, 1);
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egg_icon_list_add_move_binding (binding_set, GDK_KP_Page_Down, 0,
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GTK_MOVEMENT_PAGES, 1);
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egg_icon_list_add_move_binding (binding_set, GDK_Right, 0,
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GTK_MOVEMENT_VISUAL_POSITIONS, 1);
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egg_icon_list_add_move_binding (binding_set, GDK_Left, 0,
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GTK_MOVEMENT_VISUAL_POSITIONS, -1);
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egg_icon_list_add_move_binding (binding_set, GDK_KP_Right, 0,
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GTK_MOVEMENT_VISUAL_POSITIONS, 1);
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egg_icon_list_add_move_binding (binding_set, GDK_KP_Left, 0,
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GTK_MOVEMENT_VISUAL_POSITIONS, -1);
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}
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static void
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egg_icon_list_init (EggIconList *icon_list)
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@ -850,29 +933,46 @@ egg_icon_list_button_press (GtkWidget *widget,
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item = egg_icon_list_get_item_at_pos (icon_list,
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event->x, event->y);
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if (item != NULL)
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{
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if (icon_list->priv->selection_mode == GTK_SELECTION_MULTIPLE &&
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(event->state & GDK_CONTROL_MASK))
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(event->state & GDK_SHIFT_MASK))
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{
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item->selected = !item->selected;
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egg_icon_list_unselect_all_internal (icon_list, FALSE);
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egg_icon_list_set_cursor_item (icon_list, item);
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if (!icon_list->priv->anchor_item)
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icon_list->priv->anchor_item = item;
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else
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egg_icon_list_select_all_between (icon_list,
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icon_list->priv->anchor_item,
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item, FALSE);
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dirty = TRUE;
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}
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else
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else
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{
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if (!item->selected)
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if (icon_list->priv->selection_mode == GTK_SELECTION_MULTIPLE &&
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(event->state & GDK_CONTROL_MASK))
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{
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egg_icon_list_unselect_all_internal (icon_list, FALSE);
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item->selected = TRUE;
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item->selected = !item->selected;
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egg_icon_list_queue_draw_item (icon_list, item);
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dirty = TRUE;
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}
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else
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{
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if (!item->selected)
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{
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egg_icon_list_unselect_all_internal (icon_list, FALSE);
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item->selected = TRUE;
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dirty = TRUE;
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}
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}
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egg_icon_list_set_cursor_item (icon_list, item);
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icon_list->priv->anchor_item = item;
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}
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egg_icon_list_set_cursor_item (icon_list, item);
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egg_icon_list_queue_draw_item (icon_list, item);
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/* Save press to possibly begin a drag */
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if (icon_list->priv->pressed_button < 0)
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{
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@ -1445,16 +1545,18 @@ egg_icon_list_adjustment_changed (GtkAdjustment *adjustment,
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}
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static GList *
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egg_icon_list_layout_single_row (EggIconList *icon_list, GList *first_item, gint *y, gint *maximum_width)
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egg_icon_list_layout_single_row (EggIconList *icon_list, GList *first_item, gint *y, gint *maximum_width, gint row)
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{
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gint x, current_width, max_height, max_pixbuf_height;
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GList *items, *last_item;
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gint icon_padding;
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gint left_margin, right_margin;
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gint maximum_layout_width;
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gint col;
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gboolean rtl = gtk_widget_get_direction (GTK_WIDGET (icon_list)) == GTK_TEXT_DIR_RTL;
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x = 0;
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col = 0;
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max_height = 0;
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max_pixbuf_height = 0;
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items = first_item;
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@ -1488,7 +1590,6 @@ egg_icon_list_layout_single_row (EggIconList *icon_list, GList *first_item, gint
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item->y = *y;
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item->x = rtl ? GTK_WIDGET (icon_list)->allocation.width - item->width - x : x;
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if (item->width < MINIMUM_ICON_ITEM_WIDTH) {
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if (rtl)
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item->x -= (MINIMUM_ICON_ITEM_WIDTH - item->width) / 2;
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@ -1508,6 +1609,10 @@ egg_icon_list_layout_single_row (EggIconList *icon_list, GList *first_item, gint
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if (current_width > *maximum_width)
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*maximum_width = current_width;
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item->row = row;
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item->col = col;
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col++;
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items = items->next;
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}
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@ -1522,13 +1627,15 @@ egg_icon_list_layout_single_row (EggIconList *icon_list, GList *first_item, gint
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item->pixbuf_y = item->y + (max_pixbuf_height - item->pixbuf_height);
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item->layout_y = item->pixbuf_y + item->pixbuf_height + ICON_TEXT_PADDING;
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/* Update the bounding box */
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item->y = item->pixbuf_y;
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/* We may want to readjust the new y coordinate. */
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if (item->y + item->height > *y)
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*y = item->y + item->height;
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if (rtl)
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item->col = col - 1 - item->col;
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}
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return last_item;
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@ -1565,6 +1672,7 @@ egg_icon_list_layout (EggIconList *icon_list)
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GList *icons;
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GtkWidget *widget;
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gint top_margin, bottom_margin;
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gint row;
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widget = GTK_WIDGET (icon_list);
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icons = icon_list->priv->items;
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@ -1574,10 +1682,12 @@ egg_icon_list_layout (EggIconList *icon_list)
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"bottom_margin", &bottom_margin,
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NULL);
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y += top_margin;
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row = 0;
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do
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{
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icons = egg_icon_list_layout_single_row (icon_list, icons, &y, &maximum_width);
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icons = egg_icon_list_layout_single_row (icon_list, icons, &y, &maximum_width, row);
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row++;
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}
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while (icons != NULL);
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@ -2550,3 +2660,390 @@ egg_icon_list_item_get_icon_list (EggIconListItem *item)
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return item->icon_list;
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}
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static void
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egg_icon_list_add_move_binding (GtkBindingSet *binding_set,
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guint keyval,
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guint modmask,
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GtkMovementStep step,
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gint count)
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{
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gtk_binding_entry_add_signal (binding_set, keyval, modmask,
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"move_cursor", 2,
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G_TYPE_ENUM, step,
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G_TYPE_INT, count);
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gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
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"move_cursor", 2,
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G_TYPE_ENUM, step,
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G_TYPE_INT, count);
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if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
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return;
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gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
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"move_cursor", 2,
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G_TYPE_ENUM, step,
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G_TYPE_INT, count);
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gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
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"move_cursor", 2,
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G_TYPE_ENUM, step,
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G_TYPE_INT, count);
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}
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static gboolean
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egg_icon_list_real_move_cursor (EggIconList *icon_list,
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GtkMovementStep step,
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gint count)
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{
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GdkModifierType state;
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g_return_val_if_fail (EGG_ICON_LIST (icon_list), FALSE);
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g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
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step == GTK_MOVEMENT_VISUAL_POSITIONS ||
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step == GTK_MOVEMENT_DISPLAY_LINES ||
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step == GTK_MOVEMENT_PAGES ||
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step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
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if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (icon_list)))
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return FALSE;
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gtk_widget_grab_focus (GTK_WIDGET (icon_list));
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if (gtk_get_current_event_state (&state))
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{
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if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
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icon_list->priv->ctrl_pressed = TRUE;
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if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
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icon_list->priv->shift_pressed = TRUE;
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}
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/* else we assume not pressed */
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switch (step)
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{
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case GTK_MOVEMENT_LOGICAL_POSITIONS:
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case GTK_MOVEMENT_VISUAL_POSITIONS:
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egg_icon_list_move_cursor_left_right (icon_list, count);
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break;
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case GTK_MOVEMENT_DISPLAY_LINES:
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egg_icon_list_move_cursor_up_down (icon_list, count);
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break;
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case GTK_MOVEMENT_PAGES:
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egg_icon_list_move_cursor_page_up_down (icon_list, count);
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break;
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case GTK_MOVEMENT_BUFFER_ENDS:
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egg_icon_list_move_cursor_start_end (icon_list, count);
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break;
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default:
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g_assert_not_reached ();
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}
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icon_list->priv->ctrl_pressed = FALSE;
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icon_list->priv->shift_pressed = FALSE;
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return TRUE;
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}
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static EggIconListItem *
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find_item (EggIconList *icon_list,
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EggIconListItem *current,
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gint row_ofs,
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gint col_ofs)
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{
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gint row, col;
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GList *items;
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EggIconListItem *item;
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/* FIXME: this could be more efficient
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*/
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row = current->row + row_ofs;
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col = current->col + col_ofs;
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for (items = icon_list->priv->items; items; items = items->next)
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{
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item = items->data;
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if (item->row == row && item->col == col)
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return item;
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}
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return NULL;
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}
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static EggIconListItem *
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find_item_page_up_down (EggIconList *icon_list,
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EggIconListItem *current,
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gint count)
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{
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GList *item, *next;
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gint y, col;
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col = current->col;
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y = current->y + count * icon_list->priv->vadjustment->page_size;
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item = g_list_find (icon_list->priv->items, current);
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if (count > 0)
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{
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while (item)
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{
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for (next = item->next; next; next = next->next)
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{
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if (((EggIconListItem *)next->data)->col == col)
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break;
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}
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if (!next || ((EggIconListItem *)next->data)->y > y)
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break;
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item = next;
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}
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}
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else
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{
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while (item)
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{
|
||||
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->shift_pressed ||
|
||||
!icon_list->priv->anchor_item ||
|
||||
icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE)
|
||||
icon_list->priv->anchor_item = item;
|
||||
|
||||
icon_list->priv->cursor_item = item;
|
||||
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->shift_pressed ||
|
||||
!icon_list->priv->anchor_item ||
|
||||
icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE)
|
||||
icon_list->priv->anchor_item = item;
|
||||
|
||||
icon_list->priv->cursor_item = item;
|
||||
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->shift_pressed ||
|
||||
!icon_list->priv->anchor_item ||
|
||||
icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE)
|
||||
icon_list->priv->anchor_item = item;
|
||||
|
||||
icon_list->priv->cursor_item = item;
|
||||
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->shift_pressed ||
|
||||
!icon_list->priv->anchor_item ||
|
||||
icon_list->priv->selection_mode != GTK_SELECTION_MULTIPLE)
|
||||
icon_list->priv->anchor_item = item;
|
||||
|
||||
icon_list->priv->cursor_item = item;
|
||||
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);
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user