/* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include #include #include "gdk/gdkkeysyms.h" #include "gtkbindings.h" #include "gtkclipboard.h" #include "gtkentry.h" #include "gtkimmulticontext.h" #include "gtkintl.h" #include "gtkmain.h" #include "gtkmenu.h" #include "gtkmenuitem.h" #include "gtkselection.h" #include "gtksignal.h" #define MIN_ENTRY_WIDTH 150 #define DRAW_TIMEOUT 20 #define INNER_BORDER 2 /* Initial size of buffer, in bytes */ #define MIN_SIZE 16 /* Maximum size of text buffer, in bytes */ #define MAX_SIZE G_MAXUSHORT enum { INSERT_TEXT, DELETE_TEXT, CHANGED, ACTIVATE, MOVE_CURSOR, INSERT_AT_CURSOR, DELETE_FROM_CURSOR, CUT_CLIPBOARD, COPY_CLIPBOARD, PASTE_CLIPBOARD, TOGGLE_OVERWRITE, LAST_SIGNAL }; enum { ARG_0, ARG_TEXT_POSITION, ARG_EDITABLE, ARG_MAX_LENGTH, ARG_VISIBILITY, ARG_INVISIBLE_CHAR }; static guint signals[LAST_SIGNAL] = { 0 }; /* GObject, GtkObject methods */ static void gtk_entry_class_init (GtkEntryClass *klass); static void gtk_entry_editable_init (GtkEditableClass *iface); static void gtk_entry_init (GtkEntry *entry); static void gtk_entry_set_arg (GtkObject *object, GtkArg *arg, guint arg_id); static void gtk_entry_get_arg (GtkObject *object, GtkArg *arg, guint arg_id); static void gtk_entry_finalize (GObject *object); /* GtkWidget methods */ static void gtk_entry_realize (GtkWidget *widget); static void gtk_entry_unrealize (GtkWidget *widget); static void gtk_entry_size_request (GtkWidget *widget, GtkRequisition *requisition); static void gtk_entry_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static void gtk_entry_draw (GtkWidget *widget, GdkRectangle *area); static void gtk_entry_draw_focus (GtkWidget *widget); static gint gtk_entry_expose (GtkWidget *widget, GdkEventExpose *event); static gint gtk_entry_button_press (GtkWidget *widget, GdkEventButton *event); static gint gtk_entry_button_release (GtkWidget *widget, GdkEventButton *event); static gint gtk_entry_motion_notify (GtkWidget *widget, GdkEventMotion *event); static gint gtk_entry_key_press (GtkWidget *widget, GdkEventKey *event); static gint gtk_entry_focus_in (GtkWidget *widget, GdkEventFocus *event); static gint gtk_entry_focus_out (GtkWidget *widget, GdkEventFocus *event); static void gtk_entry_style_set (GtkWidget *widget, GtkStyle *previous_style); static void gtk_entry_direction_changed (GtkWidget *widget, GtkTextDirection previous_dir); static void gtk_entry_state_changed (GtkWidget *widget, GtkStateType previous_state); /* GtkEditable method implementations */ static void gtk_entry_insert_text (GtkEditable *editable, const gchar *new_text, gint new_text_length, gint *position); static void gtk_entry_delete_text (GtkEditable *editable, gint start_pos, gint end_pos); static gchar * gtk_entry_get_chars (GtkEditable *editable, gint start_pos, gint end_pos); static void gtk_entry_real_set_position (GtkEditable *editable, gint position); static gint gtk_entry_get_position (GtkEditable *editable); static void gtk_entry_set_selection_bounds (GtkEditable *editable, gint start, gint end); static gboolean gtk_entry_get_selection_bounds (GtkEditable *editable, gint *start, gint *end); /* Default signal handlers */ static void gtk_entry_real_insert_text (GtkEntry *entry, const gchar *new_text, gint new_text_length, gint *position); static void gtk_entry_real_delete_text (GtkEntry *entry, gint start_pos, gint end_pos); static void gtk_entry_move_cursor (GtkEntry *entry, GtkMovementStep step, gint count, gboolean extend_selection); static void gtk_entry_insert_at_cursor (GtkEntry *entry, const gchar *str); static void gtk_entry_delete_from_cursor (GtkEntry *entry, GtkDeleteType type, gint count); static void gtk_entry_cut_clipboard (GtkEntry *entry); static void gtk_entry_copy_clipboard (GtkEntry *entry); static void gtk_entry_paste_clipboard (GtkEntry *entry); static void gtk_entry_toggle_overwrite (GtkEntry *entry); /* IM Context Callbacks */ static void gtk_entry_commit_cb (GtkIMContext *context, const gchar *str, GtkEntry *entry); static void gtk_entry_preedit_changed_cb (GtkIMContext *context, GtkEntry *entry); /* Internal routines */ static void gtk_entry_draw_text (GtkEntry *entry); static void gtk_entry_draw_cursor (GtkEntry *entry); static PangoLayout *gtk_entry_get_layout (GtkEntry *entry, gboolean include_preedit); static void gtk_entry_queue_draw (GtkEntry *entry); static void gtk_entry_reset_im_context (GtkEntry *entry); static void gtk_entry_recompute (GtkEntry *entry); static gint gtk_entry_find_position (GtkEntry *entry, gint x); static void gtk_entry_get_cursor_locations (GtkEntry *entry, gint *strong_x, gint *weak_x); static void gtk_entry_adjust_scroll (GtkEntry *entry); static gint gtk_entry_move_visually (GtkEntry *editable, gint start, gint count); static gint gtk_entry_move_forward_word (GtkEntry *entry, gint start); static gint gtk_entry_move_backward_word (GtkEntry *entry, gint start); static void gtk_entry_delete_whitespace (GtkEntry *entry); static void gtk_entry_select_word (GtkEntry *entry); static void gtk_entry_select_line (GtkEntry *entry); static char * gtk_entry_get_public_chars (GtkEntry *entry, gint start, gint end); static void gtk_entry_paste (GtkEntry *entry, GdkAtom selection); static void gtk_entry_update_primary_selection (GtkEntry *entry); static void gtk_entry_popup_menu (GtkEntry *entry, GdkEventButton *event); static GtkWidgetClass *parent_class = NULL; GtkType gtk_entry_get_type (void) { static GtkType entry_type = 0; if (!entry_type) { static const GtkTypeInfo entry_info = { "GtkEntry", sizeof (GtkEntry), sizeof (GtkEntryClass), (GtkClassInitFunc) gtk_entry_class_init, (GtkObjectInitFunc) gtk_entry_init, /* reserved_1 */ NULL, /* reserved_2 */ NULL, (GtkClassInitFunc) NULL, }; static const GInterfaceInfo editable_info = { (GInterfaceInitFunc) gtk_entry_editable_init, /* interface_init */ NULL, /* interface_finalize */ NULL /* interface_data */ }; entry_type = gtk_type_unique (GTK_TYPE_WIDGET, &entry_info); g_type_add_interface_static (entry_type, GTK_TYPE_EDITABLE, &editable_info); } return entry_type; } static void add_move_binding (GtkBindingSet *binding_set, guint keyval, guint modmask, GtkMovementStep step, gint count) { g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0); gtk_binding_entry_add_signal (binding_set, keyval, modmask, "move_cursor", 3, GTK_TYPE_ENUM, step, G_TYPE_INT, count, G_TYPE_BOOLEAN, FALSE); /* Selection-extending version */ gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK, "move_cursor", 3, GTK_TYPE_ENUM, step, G_TYPE_INT, count, G_TYPE_BOOLEAN, TRUE); } static void gtk_entry_class_init (GtkEntryClass *class) { GObjectClass *gobject_class = G_OBJECT_CLASS (class); GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkBindingSet *binding_set; object_class = (GtkObjectClass*) class; widget_class = (GtkWidgetClass*) class; parent_class = gtk_type_class (GTK_TYPE_WIDGET); gobject_class->finalize = gtk_entry_finalize; gtk_object_add_arg_type ("GtkEntry::text_position", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_TEXT_POSITION); gtk_object_add_arg_type ("GtkEntry::editable", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_EDITABLE); gtk_object_add_arg_type ("GtkEntry::max_length", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_MAX_LENGTH); gtk_object_add_arg_type ("GtkEntry::visibility", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_VISIBILITY); gtk_object_add_arg_type ("GtkEntry::invisible_char", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_INVISIBLE_CHAR); signals[INSERT_TEXT] = gtk_signal_new ("insert_text", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, insert_text), gtk_marshal_VOID__STRING_INT_POINTER, GTK_TYPE_NONE, 3, GTK_TYPE_STRING, GTK_TYPE_INT, GTK_TYPE_POINTER); signals[DELETE_TEXT] = gtk_signal_new ("delete_text", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, delete_text), gtk_marshal_VOID__INT_INT, GTK_TYPE_NONE, 2, GTK_TYPE_INT, GTK_TYPE_INT); signals[CHANGED] = gtk_signal_new ("changed", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, changed), gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); /* Action signals */ signals[ACTIVATE] = gtk_signal_new ("activate", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, activate), gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); widget_class->activate_signal = signals[ACTIVATE]; signals[MOVE_CURSOR] = gtk_signal_new ("move_cursor", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, move_cursor), gtk_marshal_VOID__ENUM_INT_BOOLEAN, GTK_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, GTK_TYPE_INT, GTK_TYPE_BOOL); signals[INSERT_AT_CURSOR] = gtk_signal_new ("insert_at_cursor", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, insert_at_cursor), gtk_marshal_VOID__STRING, GTK_TYPE_NONE, 1, GTK_TYPE_STRING); signals[DELETE_FROM_CURSOR] = gtk_signal_new ("delete_from_cursor", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, delete_from_cursor), gtk_marshal_VOID__ENUM_INT, GTK_TYPE_NONE, 2, GTK_TYPE_DELETE_TYPE, GTK_TYPE_INT); signals[CUT_CLIPBOARD] = gtk_signal_new ("cut_clipboard", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, cut_clipboard), gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); signals[COPY_CLIPBOARD] = gtk_signal_new ("copy_clipboard", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, copy_clipboard), gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); signals[PASTE_CLIPBOARD] = gtk_signal_new ("paste_clipboard", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, paste_clipboard), gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); signals[TOGGLE_OVERWRITE] = gtk_signal_new ("toggle_overwrite", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkEntryClass, toggle_overwrite), gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL); /* * Key bindings */ binding_set = gtk_binding_set_by_class (class); /* Moving the insertion point */ add_move_binding (binding_set, GDK_Right, 0, GTK_MOVEMENT_POSITIONS, 1); add_move_binding (binding_set, GDK_Left, 0, GTK_MOVEMENT_POSITIONS, -1); add_move_binding (binding_set, GDK_f, GDK_CONTROL_MASK, GTK_MOVEMENT_CHARS, 1); add_move_binding (binding_set, GDK_b, GDK_CONTROL_MASK, GTK_MOVEMENT_CHARS, -1); add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK, GTK_MOVEMENT_WORDS, 1); add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK, GTK_MOVEMENT_WORDS, -1); add_move_binding (binding_set, GDK_a, GDK_CONTROL_MASK, GTK_MOVEMENT_PARAGRAPH_ENDS, -1); add_move_binding (binding_set, GDK_e, GDK_CONTROL_MASK, GTK_MOVEMENT_PARAGRAPH_ENDS, 1); add_move_binding (binding_set, GDK_f, GDK_MOD1_MASK, GTK_MOVEMENT_WORDS, 1); add_move_binding (binding_set, GDK_b, GDK_MOD1_MASK, GTK_MOVEMENT_WORDS, -1); add_move_binding (binding_set, GDK_Home, 0, GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1); add_move_binding (binding_set, GDK_End, 0, GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1); add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK, GTK_MOVEMENT_BUFFER_ENDS, -1); add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK, GTK_MOVEMENT_BUFFER_ENDS, 1); /* Deleting text */ gtk_binding_entry_add_signal (binding_set, GDK_Delete, 0, "delete_from_cursor", 2, GTK_TYPE_ENUM, GTK_DELETE_CHARS, GTK_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_d, GDK_CONTROL_MASK, "delete_from_cursor", 2, GTK_TYPE_ENUM, GTK_DELETE_CHARS, GTK_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0, "delete_from_cursor", 2, GTK_TYPE_ENUM, GTK_DELETE_CHARS, GTK_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_CONTROL_MASK, "delete_from_cursor", 2, GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS, GTK_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_d, GDK_MOD1_MASK, "delete_from_cursor", 2, GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS, GTK_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK, "delete_from_cursor", 2, GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS, GTK_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_k, GDK_CONTROL_MASK, "delete_from_cursor", 2, GTK_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS, GTK_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_u, GDK_CONTROL_MASK, "delete_from_cursor", 2, GTK_TYPE_ENUM, GTK_DELETE_PARAGRAPHS, GTK_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_MOD1_MASK, "delete_from_cursor", 2, GTK_TYPE_ENUM, GTK_DELETE_WHITESPACE, GTK_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_MOD1_MASK, "insert_at_cursor", 1, GTK_TYPE_STRING, " "); gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_MOD1_MASK, "delete_from_cursor", 2, GTK_TYPE_ENUM, GTK_DELETE_WHITESPACE, GTK_TYPE_INT, 1); /* Cut/copy/paste */ gtk_binding_entry_add_signal (binding_set, GDK_x, GDK_CONTROL_MASK, "cut_clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_w, GDK_CONTROL_MASK, "cut_clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK, "copy_clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_v, GDK_CONTROL_MASK, "paste_clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_y, GDK_CONTROL_MASK, "paste_clipboard", 0); /* Overwrite */ gtk_binding_entry_add_signal (binding_set, GDK_Insert, 0, "toggle_overwrite", 0); object_class->set_arg = gtk_entry_set_arg; object_class->get_arg = gtk_entry_get_arg; widget_class->realize = gtk_entry_realize; widget_class->unrealize = gtk_entry_unrealize; widget_class->draw_focus = gtk_entry_draw_focus; widget_class->size_request = gtk_entry_size_request; widget_class->size_allocate = gtk_entry_size_allocate; widget_class->draw = gtk_entry_draw; widget_class->expose_event = gtk_entry_expose; widget_class->button_press_event = gtk_entry_button_press; widget_class->button_release_event = gtk_entry_button_release; widget_class->motion_notify_event = gtk_entry_motion_notify; widget_class->key_press_event = gtk_entry_key_press; widget_class->focus_in_event = gtk_entry_focus_in; widget_class->focus_out_event = gtk_entry_focus_out; widget_class->style_set = gtk_entry_style_set; widget_class->direction_changed = gtk_entry_direction_changed; widget_class->state_changed = gtk_entry_state_changed; class->insert_text = gtk_entry_real_insert_text; class->delete_text = gtk_entry_real_delete_text; class->move_cursor = gtk_entry_move_cursor; class->insert_at_cursor = gtk_entry_insert_at_cursor; class->delete_from_cursor = gtk_entry_delete_from_cursor; class->cut_clipboard = gtk_entry_cut_clipboard; class->copy_clipboard = gtk_entry_copy_clipboard; class->paste_clipboard = gtk_entry_paste_clipboard; class->toggle_overwrite = gtk_entry_toggle_overwrite; } static void gtk_entry_editable_init (GtkEditableClass *iface) { iface->insert_text = gtk_entry_insert_text; iface->delete_text = gtk_entry_delete_text; iface->get_chars = gtk_entry_get_chars; iface->set_selection_bounds = gtk_entry_set_selection_bounds; iface->get_selection_bounds = gtk_entry_get_selection_bounds; iface->set_position = gtk_entry_real_set_position; iface->get_position = gtk_entry_get_position; } static void gtk_entry_set_arg (GtkObject *object, GtkArg *arg, guint arg_id) { GtkEntry *entry = GTK_ENTRY (object); switch (arg_id) { case ARG_TEXT_POSITION: gtk_editable_set_position (GTK_EDITABLE (object), GTK_VALUE_INT (*arg)); break; case ARG_EDITABLE: { gboolean new_value = GTK_VALUE_BOOL (*arg) != 0; if (new_value != entry->editable) { entry->editable = new_value; gtk_entry_queue_draw (entry); } } break; case ARG_MAX_LENGTH: gtk_entry_set_max_length (entry, GTK_VALUE_UINT (*arg)); break; case ARG_VISIBILITY: gtk_entry_set_visibility (entry, GTK_VALUE_BOOL (*arg)); break; case ARG_INVISIBLE_CHAR: gtk_entry_set_invisible_char (entry, GTK_VALUE_INT (*arg)); break; default: break; } } static void gtk_entry_get_arg (GtkObject *object, GtkArg *arg, guint arg_id) { GtkEntry *entry; entry = GTK_ENTRY (object); switch (arg_id) { case ARG_TEXT_POSITION: GTK_VALUE_INT (*arg) = entry->current_pos; break; case ARG_EDITABLE: GTK_VALUE_BOOL (*arg) = entry->editable; break; case ARG_MAX_LENGTH: GTK_VALUE_UINT (*arg) = entry->text_max_length; break; case ARG_VISIBILITY: GTK_VALUE_BOOL (*arg) = entry->visible; break; case ARG_INVISIBLE_CHAR: GTK_VALUE_INT (*arg) = entry->invisible_char; break; default: arg->type = GTK_TYPE_INVALID; break; } } static void gtk_entry_init (GtkEntry *entry) { GTK_WIDGET_SET_FLAGS (entry, GTK_CAN_FOCUS); entry->text_size = MIN_SIZE; entry->text = g_malloc (entry->text_size); entry->text[0] = '\0'; entry->editable = TRUE; entry->visible = TRUE; entry->invisible_char = '*'; /* This object is completely private. No external entity can gain a reference * to it; so we create it here and destroy it in finalize(). */ entry->im_context = gtk_im_multicontext_new (); gtk_signal_connect (GTK_OBJECT (entry->im_context), "commit", GTK_SIGNAL_FUNC (gtk_entry_commit_cb), entry); gtk_signal_connect (GTK_OBJECT (entry->im_context), "preedit_changed", GTK_SIGNAL_FUNC (gtk_entry_preedit_changed_cb), entry); } static void gtk_entry_finalize (GObject *object) { GtkEntry *entry; g_return_if_fail (GTK_IS_ENTRY (object)); entry = GTK_ENTRY (object); if (entry->cached_layout) g_object_unref (G_OBJECT (entry->cached_layout)); gtk_object_unref (GTK_OBJECT (entry->im_context)); if (entry->timer) g_source_remove (entry->timer); if (entry->recompute_idle) g_source_remove (entry->recompute_idle); entry->text_size = 0; if (entry->text) g_free (entry->text); entry->text = NULL; G_OBJECT_CLASS (parent_class)->finalize (object); } static void gtk_entry_realize (GtkWidget *widget) { GtkEntry *entry; GtkEditable *editable; GtkRequisition requisition; GdkWindowAttr attributes; gint attributes_mask; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_ENTRY (widget)); GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); entry = GTK_ENTRY (widget); editable = GTK_EDITABLE (widget); gtk_widget_get_child_requisition (widget, &requisition); attributes.window_type = GDK_WINDOW_CHILD; attributes.x = widget->allocation.x; attributes.y = widget->allocation.y + (widget->allocation.height - requisition.height) / 2; attributes.width = widget->allocation.width; attributes.height = requisition.height; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.colormap = gtk_widget_get_colormap (widget); attributes.event_mask = gtk_widget_get_events (widget); attributes.event_mask |= (GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON3_MOTION_MASK | GDK_POINTER_MOTION_HINT_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, entry); attributes.x = widget->style->xthickness; attributes.y = widget->style->ythickness; attributes.width = widget->allocation.width - attributes.x * 2; attributes.height = requisition.height - attributes.y * 2; attributes.cursor = gdk_cursor_new (GDK_XTERM); attributes_mask |= GDK_WA_CURSOR; entry->text_area = gdk_window_new (widget->window, &attributes, attributes_mask); gdk_window_set_user_data (entry->text_area, entry); widget->style = gtk_style_attach (widget->style, widget->window); gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]); gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]); gdk_window_show (entry->text_area); gtk_im_context_set_client_window (entry->im_context, entry->text_area); gtk_entry_adjust_scroll (entry); } static void gtk_entry_unrealize (GtkWidget *widget) { GtkEntry *entry; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_ENTRY (widget)); entry = GTK_ENTRY (widget); gtk_im_context_set_client_window (entry->im_context, entry->text_area); if (entry->text_area) { gdk_window_set_user_data (entry->text_area, NULL); gdk_window_destroy (entry->text_area); entry->text_area = NULL; } if (entry->popup_menu) gtk_widget_destroy (entry->popup_menu); if (GTK_WIDGET_CLASS (parent_class)->unrealize) (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); } static void gtk_entry_size_request (GtkWidget *widget, GtkRequisition *requisition) { GtkEntry *entry; PangoFontMetrics metrics; PangoFont *font; gchar *lang; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_ENTRY (widget)); g_return_if_fail (requisition != NULL); entry = GTK_ENTRY (widget); /* hackish for now, get metrics */ font = pango_context_load_font (gtk_widget_get_pango_context (widget), widget->style->font_desc); lang = pango_context_get_lang (gtk_widget_get_pango_context (widget)); pango_font_get_metrics (font, lang, &metrics); g_free (lang); g_object_unref (G_OBJECT (font)); entry->ascent = metrics.ascent; entry->descent = metrics.descent; requisition->width = MIN_ENTRY_WIDTH + (widget->style->xthickness + INNER_BORDER) * 2; requisition->height = ((metrics.ascent + metrics.descent) / PANGO_SCALE + (widget->style->ythickness + INNER_BORDER) * 2); } static void gtk_entry_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkEntry *entry; GtkEditable *editable; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_ENTRY (widget)); g_return_if_fail (allocation != NULL); widget->allocation = *allocation; entry = GTK_ENTRY (widget); editable = GTK_EDITABLE (widget); if (GTK_WIDGET_REALIZED (widget)) { /* We call gtk_widget_get_child_requisition, since we want (for * backwards compatibility reasons) the realization here to * be affected by the usize of the entry, if set */ GtkRequisition requisition; gtk_widget_get_child_requisition (widget, &requisition); gdk_window_move_resize (widget->window, allocation->x, allocation->y + (allocation->height - requisition.height) / 2, allocation->width, requisition.height); gdk_window_move_resize (entry->text_area, widget->style->xthickness, widget->style->ythickness, allocation->width - widget->style->xthickness * 2, requisition.height - widget->style->ythickness * 2); gtk_entry_recompute (entry); } } static void gtk_entry_draw (GtkWidget *widget, GdkRectangle *area) { GtkEntry *entry; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_ENTRY (widget)); g_return_if_fail (area != NULL); entry = GTK_ENTRY (widget); if (GTK_WIDGET_DRAWABLE (widget)) { GdkRectangle tmp_area = *area; tmp_area.x -= widget->style->xthickness; tmp_area.y -= widget->style->xthickness; gdk_window_begin_paint_rect (entry->text_area, &tmp_area); gtk_widget_draw_focus (widget); gtk_entry_draw_text (GTK_ENTRY (widget)); gtk_entry_draw_cursor (GTK_ENTRY (widget)); gdk_window_end_paint (entry->text_area); } } static void gtk_entry_draw_focus (GtkWidget *widget) { gint width, height; gint x, y; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_ENTRY (widget)); if (GTK_WIDGET_DRAWABLE (widget)) { x = 0; y = 0; gdk_window_get_size (widget->window, &width, &height); if (GTK_WIDGET_HAS_FOCUS (widget)) { x += 1; y += 1; width -= 2; height -= 2; } gtk_paint_shadow (widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN, NULL, widget, "entry", x, y, width, height); if (GTK_WIDGET_HAS_FOCUS (widget)) { gdk_window_get_size (widget->window, &width, &height); gtk_paint_focus (widget->style, widget->window, NULL, widget, "entry", 0, 0, width - 1, height - 1); } } } static gint gtk_entry_expose (GtkWidget *widget, GdkEventExpose *event) { GtkEntry *entry; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); entry = GTK_ENTRY (widget); if (widget->window == event->window) gtk_widget_draw_focus (widget); else if (entry->text_area == event->window) { gtk_entry_draw_text (GTK_ENTRY (widget)); gtk_entry_draw_cursor (GTK_ENTRY (widget)); } return FALSE; } static gint gtk_entry_button_press (GtkWidget *widget, GdkEventButton *event) { GtkEntry *entry = GTK_ENTRY (widget); GtkEditable *editable = GTK_EDITABLE (widget); gint tmp_pos; entry = GTK_ENTRY (widget); editable = GTK_EDITABLE (widget); if (event->window != entry->text_area || (entry->button && event->button != entry->button)) return FALSE; entry->button = event->button; if (!GTK_WIDGET_HAS_FOCUS (widget)) gtk_widget_grab_focus (widget); tmp_pos = gtk_entry_find_position (entry, event->x + entry->scroll_offset); if (event->button == 1) { switch (event->type) { case GDK_BUTTON_PRESS: gtk_entry_reset_im_context (entry); entry->current_pos = tmp_pos; entry->selection_bound = tmp_pos; gtk_entry_recompute (entry); break; case GDK_2BUTTON_PRESS: gtk_entry_select_word (entry); break; case GDK_3BUTTON_PRESS: gtk_entry_select_line (entry); break; default: break; } return TRUE; } else if (event->button == 2 && event->type == GDK_BUTTON_PRESS && entry->editable) { gtk_editable_select_region (editable, tmp_pos, tmp_pos); gtk_entry_paste (entry, GDK_SELECTION_PRIMARY); return TRUE; } else if (event->button == 3 && event->type == GDK_BUTTON_PRESS) { gtk_entry_popup_menu (entry, event); entry->button = 0; /* Don't wait for release, since the menu will gtk_grab_add */ return TRUE; } return FALSE; } static gint gtk_entry_button_release (GtkWidget *widget, GdkEventButton *event) { GtkEntry *entry = GTK_ENTRY (widget); GtkEditable *editable = GTK_EDITABLE (widget); if (event->window != entry->text_area || entry->button != event->button) return FALSE; entry->button = 0; return FALSE; } static gint gtk_entry_motion_notify (GtkWidget *widget, GdkEventMotion *event) { GtkEntry *entry = GTK_ENTRY (widget); gint tmp_pos; if (event->window != entry->text_area || entry->button != 1) return FALSE; if (event->is_hint || (entry->text_area != event->window)) gdk_window_get_pointer (entry->text_area, NULL, NULL, NULL); tmp_pos = gtk_entry_find_position (entry, event->x + entry->scroll_offset); if (tmp_pos != entry->current_pos) { entry->current_pos = tmp_pos; gtk_entry_recompute (entry); } return TRUE; } static gint gtk_entry_key_press (GtkWidget *widget, GdkEventKey *event) { GtkEntry *entry = GTK_ENTRY (widget); if (!entry->editable) return FALSE; if (gtk_im_context_filter_keypress (entry->im_context, event)) { entry->need_im_reset = TRUE; return TRUE; } else if (GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event)) /* Activate key bindings */ return TRUE; else if (event->keyval == GDK_Return) { gtk_widget_activate (widget); return TRUE; } return FALSE; } static gint gtk_entry_focus_in (GtkWidget *widget, GdkEventFocus *event) { g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS); gtk_widget_draw_focus (widget); gtk_entry_queue_draw (GTK_ENTRY (widget)); GTK_ENTRY (widget)->need_im_reset = TRUE; gtk_im_context_focus_in (GTK_ENTRY (widget)->im_context); return FALSE; } static gint gtk_entry_focus_out (GtkWidget *widget, GdkEventFocus *event) { g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS); gtk_widget_draw_focus (widget); gtk_entry_queue_draw (GTK_ENTRY (widget)); GTK_ENTRY (widget)->need_im_reset = TRUE; gtk_im_context_focus_out (GTK_ENTRY (widget)->im_context); return FALSE; } static void gtk_entry_direction_changed (GtkWidget *widget, GtkTextDirection previous_dir) { GtkEntry *entry = GTK_ENTRY (widget); gtk_entry_recompute (entry); GTK_WIDGET_CLASS (parent_class)->direction_changed (widget, previous_dir); } static void gtk_entry_state_changed (GtkWidget *widget, GtkStateType previous_state) { g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_ENTRY (widget)); if (GTK_WIDGET_REALIZED (widget)) { gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]); gdk_window_set_background (GTK_ENTRY (widget)->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]); } gtk_widget_queue_clear (widget); } /* GtkEditable method implementations */ static void gtk_entry_insert_text (GtkEditable *editable, const gchar *new_text, gint new_text_length, gint *position) { GtkEntry *entry = GTK_ENTRY (editable); gchar buf[64]; gchar *text; if (*position < 0 || *position > entry->text_length) *position = entry->text_length; g_object_ref (G_OBJECT (editable)); if (new_text_length <= 63) text = buf; else text = g_new (gchar, new_text_length + 1); text[new_text_length] = '\0'; strncpy (text, new_text, new_text_length); gtk_signal_emit (GTK_OBJECT (editable), signals[INSERT_TEXT], text, new_text_length, position); gtk_signal_emit (GTK_OBJECT (editable), signals[CHANGED]); if (new_text_length > 63) g_free (text); g_object_unref (G_OBJECT (editable)); } static void gtk_entry_delete_text (GtkEditable *editable, gint start_pos, gint end_pos) { GtkEntry *entry = GTK_ENTRY (editable); if (end_pos < 0 || end_pos > entry->text_length) end_pos = entry->text_length; if (start_pos < 0) start_pos = 0; if (start_pos > end_pos) start_pos = end_pos; g_object_ref (G_OBJECT (editable)); gtk_signal_emit (GTK_OBJECT (editable), signals[DELETE_TEXT], start_pos, end_pos); gtk_signal_emit (GTK_OBJECT (editable), signals[CHANGED]); g_object_unref (G_OBJECT (editable)); } static gchar * gtk_entry_get_chars (GtkEditable *editable, gint start_pos, gint end_pos) { GtkEntry *entry; gint start_index, end_index; g_return_val_if_fail (editable != NULL, NULL); g_return_val_if_fail (GTK_IS_ENTRY (editable), NULL); entry = GTK_ENTRY (editable); if (end_pos < 0) end_pos = entry->text_length; start_pos = MIN (entry->text_length, start_pos); end_pos = MIN (entry->text_length, end_pos); start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text; end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text; return g_strndup (entry->text + start_index, end_index - start_index); } static void gtk_entry_real_set_position (GtkEditable *editable, gint position) { GtkEntry *entry = GTK_ENTRY (editable); if (position < 0 || position > entry->text_length) position = entry->text_length; if (position != entry->current_pos) { gtk_entry_reset_im_context (entry); entry->current_pos = entry->selection_bound = position; gtk_entry_recompute (entry); } } static gint gtk_entry_get_position (GtkEditable *editable) { return GTK_ENTRY (editable)->current_pos; } static void gtk_entry_set_selection_bounds (GtkEditable *editable, gint start, gint end) { GtkEntry *entry = GTK_ENTRY (editable); if (start < 0) start = entry->text_length; if (end < 0) end = entry->text_length; gtk_entry_reset_im_context (entry); entry->selection_bound = MIN (start, entry->text_length); entry->current_pos = MIN (end, entry->text_length); gtk_entry_update_primary_selection (entry); gtk_entry_recompute (entry); } static gboolean gtk_entry_get_selection_bounds (GtkEditable *editable, gint *start, gint *end) { GtkEntry *entry = GTK_ENTRY (editable); *start = entry->selection_bound; *end = entry->current_pos; return (entry->selection_bound != entry->current_pos); } static void gtk_entry_style_set (GtkWidget *widget, GtkStyle *previous_style) { GtkEntry *entry = GTK_ENTRY (widget); if (previous_style && GTK_WIDGET_REALIZED (widget)) { gtk_entry_recompute (entry); gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]); gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]); } } /* Default signal handlers */ static void gtk_entry_real_insert_text (GtkEntry *entry, const gchar *new_text, gint new_text_length, gint *position) { gint index; gint n_chars; if (new_text_length < 0) new_text_length = strlen (new_text); n_chars = g_utf8_strlen (new_text, new_text_length); if (entry->text_max_length > 0 && n_chars + entry->text_length > entry->text_max_length) { gdk_beep (); n_chars = entry->text_max_length - entry->text_length; } if (new_text_length + entry->n_bytes + 1 > entry->text_size) { while (new_text_length + entry->n_bytes + 1 > entry->text_size) { if (entry->text_size == 0) entry->text_size = MIN_SIZE; else { if (2 * (guint)entry->text_size < MAX_SIZE && 2 * (guint)entry->text_size > entry->text_size) entry->text_size *= 2; else { entry->text_size = MAX_SIZE; new_text_length = entry->text_size - new_text_length - 1; break; } } } entry->text = g_realloc (entry->text, entry->text_size); } index = g_utf8_offset_to_pointer (entry->text, *position) - entry->text; g_memmove (entry->text + index + new_text_length, entry->text + index, entry->n_bytes - index); memcpy (entry->text + index, new_text, new_text_length); entry->n_bytes += new_text_length; entry->text_length += n_chars; /* NUL terminate for safety and convenience */ entry->text[entry->n_bytes] = '\0'; if (entry->current_pos > *position) entry->current_pos += n_chars; if (entry->selection_bound > *position) entry->selection_bound += n_chars; *position += n_chars; gtk_entry_recompute (entry); } static void gtk_entry_real_delete_text (GtkEntry *entry, gint start_pos, gint end_pos) { if (start_pos < 0) start_pos = 0; if (end_pos < 0 || end_pos > entry->text_length) end_pos = entry->text_length; if (start_pos < end_pos) { gint start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text; gint end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text; g_memmove (entry->text + start_index, entry->text + end_index, entry->n_bytes - end_index); entry->text_length -= (end_pos - start_pos); entry->n_bytes -= (end_index - start_index); if (entry->current_pos > start_pos) entry->current_pos -= MIN (entry->current_pos, end_pos) - start_pos; if (entry->selection_bound > start_pos) entry->selection_bound -= MIN (entry->selection_bound, end_pos) - start_pos; } /* We might have deleted the selection */ gtk_entry_update_primary_selection (entry); gtk_entry_recompute (entry); } static void gtk_entry_move_cursor (GtkEntry *entry, GtkMovementStep step, gint count, gboolean extend_selection) { gint new_pos = entry->current_pos; gtk_entry_reset_im_context (entry); switch (step) { case GTK_MOVEMENT_CHARS: new_pos = CLAMP (new_pos + count, 0, entry->text_length); break; case GTK_MOVEMENT_POSITIONS: new_pos = gtk_entry_move_visually (entry, new_pos, count); break; case GTK_MOVEMENT_WORDS: while (count > 0) { new_pos = gtk_entry_move_forward_word (entry, new_pos); count--; } while (count < 0) { new_pos = gtk_entry_move_backward_word (entry, new_pos); count++; } break; case GTK_MOVEMENT_DISPLAY_LINE_ENDS: case GTK_MOVEMENT_PARAGRAPH_ENDS: case GTK_MOVEMENT_BUFFER_ENDS: new_pos = count < 0 ? 0 : entry->text_length; break; case GTK_MOVEMENT_DISPLAY_LINES: case GTK_MOVEMENT_PARAGRAPHS: case GTK_MOVEMENT_PAGES: break; } if (extend_selection) gtk_editable_select_region (GTK_EDITABLE (entry), entry->selection_bound, new_pos); else gtk_editable_set_position (GTK_EDITABLE (entry), new_pos); } static void gtk_entry_insert_at_cursor (GtkEntry *entry, const gchar *str) { GtkEditable *editable = GTK_EDITABLE (entry); gint pos = entry->current_pos; gtk_entry_reset_im_context (entry); gtk_editable_insert_text (editable, str, -1, &pos); gtk_editable_set_position (editable, pos); } static void gtk_entry_delete_from_cursor (GtkEntry *entry, GtkDeleteType type, gint count) { GtkEditable *editable = GTK_EDITABLE (entry); gint start_pos = entry->current_pos; gint end_pos = entry->current_pos; gtk_entry_reset_im_context (entry); if (!entry->editable) return; if (entry->selection_bound != entry->current_pos) { gtk_editable_delete_selection (editable); return; } switch (type) { case GTK_DELETE_CHARS: end_pos = entry->current_pos + count; gtk_editable_delete_text (editable, MIN (start_pos, end_pos), MAX (start_pos, end_pos)); break; case GTK_DELETE_WORDS: if (count < 0) { /* Move to end of current word, or if not on a word, end of previous word */ end_pos = gtk_entry_move_backward_word (entry, end_pos); end_pos = gtk_entry_move_forward_word (entry, end_pos); } else if (count > 0) { /* Move to beginning of current word, or if not on a word, begining of next word */ start_pos = gtk_entry_move_forward_word (entry, start_pos); start_pos = gtk_entry_move_backward_word (entry, start_pos); } /* Fall through */ case GTK_DELETE_WORD_ENDS: while (count < 0) { start_pos = gtk_entry_move_backward_word (entry, start_pos); count++; } while (count > 0) { end_pos = gtk_entry_move_forward_word (entry, end_pos); count--; } gtk_editable_delete_text (editable, start_pos, end_pos); break; case GTK_DELETE_DISPLAY_LINE_ENDS: case GTK_DELETE_PARAGRAPH_ENDS: if (count < 0) gtk_editable_delete_text (editable, 0, entry->current_pos); else gtk_editable_delete_text (editable, entry->current_pos, -1); break; case GTK_DELETE_DISPLAY_LINES: case GTK_DELETE_PARAGRAPHS: gtk_editable_delete_text (editable, 0, -1); break; case GTK_DELETE_WHITESPACE: gtk_entry_delete_whitespace (entry); break; } } static void gtk_entry_copy_clipboard (GtkEntry *entry) { GtkEditable *editable = GTK_EDITABLE (entry); gint start, end; if (gtk_editable_get_selection_bounds (editable, &start, &end)) { gchar *str = gtk_entry_get_public_chars (entry, start, end); gtk_clipboard_set_text (gtk_clipboard_get (GDK_NONE), str, -1); g_free (str); } } static void gtk_entry_cut_clipboard (GtkEntry *entry) { GtkEditable *editable = GTK_EDITABLE (entry); gint start, end; gtk_entry_copy_clipboard (entry); if (gtk_editable_get_selection_bounds (editable, &start, &end)) gtk_editable_delete_text (editable, start, end); } static void gtk_entry_paste_clipboard (GtkEntry *entry) { gtk_entry_paste (entry, GDK_NONE); } static void gtk_entry_toggle_overwrite (GtkEntry *entry) { entry->overwrite_mode = !entry->overwrite_mode; } /* IM Context Callbacks */ static void gtk_entry_commit_cb (GtkIMContext *context, const gchar *str, GtkEntry *entry) { GtkEditable *editable = GTK_EDITABLE (entry); gint tmp_pos = entry->current_pos; gtk_editable_insert_text (editable, str, strlen (str), &tmp_pos); gtk_editable_set_position (editable, tmp_pos); } static void gtk_entry_preedit_changed_cb (GtkIMContext *context, GtkEntry *entry) { gchar *preedit_string; gint cursor_pos; gtk_im_context_get_preedit_string (entry->im_context, &preedit_string, NULL, &cursor_pos); entry->preedit_length = strlen (preedit_string); cursor_pos = CLAMP (cursor_pos, 0, g_utf8_strlen (preedit_string, -1)); entry->preedit_cursor = cursor_pos; g_free (preedit_string); gtk_entry_recompute (entry); } /* Internal functions */ static void gtk_entry_reset_layout (GtkEntry *entry) { if (entry->cached_layout) { g_object_unref (G_OBJECT (entry->cached_layout)); entry->cached_layout = NULL; } } static gboolean recompute_idle_func (gpointer data) { GtkEntry *entry = GTK_ENTRY (data); gtk_entry_adjust_scroll (entry); gtk_entry_queue_draw (entry); entry->recompute_idle = FALSE; return FALSE; } static void gtk_entry_recompute (GtkEntry *entry) { gtk_entry_reset_layout (entry); if (!entry->recompute_idle) { entry->recompute_idle = g_idle_add_full (G_PRIORITY_HIGH_IDLE + 15, /* between resize and redraw */ recompute_idle_func, entry, NULL); } } static void append_char (GString *str, gunichar ch, gint count) { gint i; gint char_len; gchar buf[7]; char_len = g_unichar_to_utf8 (ch, buf); i = 0; while (i < count) { g_string_append_len (str, buf, char_len); ++i; } } static PangoLayout * gtk_entry_create_layout (GtkEntry *entry, gboolean include_preedit) { PangoLayout *layout = gtk_widget_create_pango_layout (GTK_WIDGET (entry), NULL); PangoAttrList *tmp_attrs = pango_attr_list_new (); gchar *preedit_string = NULL; gint preedit_length = 0; PangoAttrList *preedit_attrs = NULL; if (include_preedit) { gtk_im_context_get_preedit_string (entry->im_context, &preedit_string, &preedit_attrs, NULL); preedit_length = entry->preedit_length; } if (preedit_length) { GString *tmp_string = g_string_new (NULL); gint cursor_index = g_utf8_offset_to_pointer (entry->text, entry->current_pos) - entry->text; if (entry->visible) { g_string_prepend_len (tmp_string, entry->text, entry->n_bytes); g_string_insert (tmp_string, cursor_index, preedit_string); } else { gint ch_len; gint preedit_len_chars; gunichar invisible_char; ch_len = g_utf8_strlen (entry->text, entry->n_bytes); preedit_len_chars = g_utf8_strlen (preedit_string, -1); ch_len += preedit_len_chars; if (entry->invisible_char != 0) invisible_char = entry->invisible_char; else invisible_char = ' '; /* just pick a char */ append_char (tmp_string, invisible_char, ch_len); /* Fix cursor index to point to invisible char corresponding * to the preedit, fix preedit_length to be the length of * the invisible chars representing the preedit */ cursor_index = g_utf8_offset_to_pointer (tmp_string->str, entry->current_pos) - tmp_string->str; preedit_length = preedit_len_chars * g_unichar_to_utf8 (invisible_char, NULL); } pango_layout_set_text (layout, tmp_string->str, tmp_string->len); pango_attr_list_splice (tmp_attrs, preedit_attrs, cursor_index, preedit_length); g_string_free (tmp_string, TRUE); } else { if (entry->visible) { pango_layout_set_text (layout, entry->text, entry->n_bytes); } else { GString *str = g_string_new (NULL); gunichar invisible_char; if (entry->invisible_char != 0) invisible_char = entry->invisible_char; else invisible_char = ' '; /* just pick a char */ append_char (str, invisible_char, entry->text_length); pango_layout_set_text (layout, str->str, str->len); g_string_free (str, TRUE); } } pango_layout_set_attributes (layout, tmp_attrs); if (preedit_string) g_free (preedit_string); if (preedit_attrs) pango_attr_list_unref (preedit_attrs); pango_attr_list_unref (tmp_attrs); return layout; } static PangoLayout * gtk_entry_get_layout (GtkEntry *entry, gboolean include_preedit) { if (entry->preedit_length > 0 && !include_preedit != !entry->cache_includes_preedit) gtk_entry_reset_layout (entry); if (!entry->cached_layout) { entry->cached_layout = gtk_entry_create_layout (entry, include_preedit); entry->cache_includes_preedit = include_preedit; } g_object_ref (G_OBJECT (entry->cached_layout)); return entry->cached_layout; } static void gtk_entry_draw_text (GtkEntry *entry) { GtkWidget *widget; PangoLayoutLine *line; g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); if (!entry->visible && entry->invisible_char == 0) return; if (GTK_WIDGET_DRAWABLE (entry)) { PangoLayout *layout = gtk_entry_get_layout (entry, TRUE); PangoRectangle logical_rect; gint area_width, area_height; gint start_pos, end_pos; gint y_pos; gdk_window_get_size (entry->text_area, &area_width, &area_height); area_height = PANGO_SCALE * (area_height - 2 * INNER_BORDER); widget = GTK_WIDGET (entry); gtk_paint_flat_box (widget->style, entry->text_area, GTK_WIDGET_STATE(widget), GTK_SHADOW_NONE, NULL, widget, "entry_bg", 0, 0, area_width, area_height); line = pango_layout_get_lines (layout)->data; pango_layout_line_get_extents (line, NULL, &logical_rect); /* Align primarily for locale's ascent/descent */ y_pos = ((area_height - entry->ascent - entry->descent) / 2 + entry->ascent + logical_rect.y); /* Now see if we need to adjust to fit in actual drawn string */ if (logical_rect.height > area_height) y_pos = (area_height - logical_rect.height) / 2; else if (y_pos < 0) y_pos = 0; else if (y_pos + logical_rect.height > area_height) y_pos = area_height - logical_rect.height; y_pos = INNER_BORDER + y_pos / PANGO_SCALE; gdk_draw_layout (entry->text_area, widget->style->text_gc [widget->state], INNER_BORDER - entry->scroll_offset, y_pos, layout); if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start_pos, &end_pos)) { gint *ranges; gint n_ranges, i; gint start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text; gint end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text; GdkRegion *clip_region = gdk_region_new (); pango_layout_line_get_x_ranges (line, start_index, end_index, &ranges, &n_ranges); for (i=0; i < n_ranges; i++) { GdkRectangle rect; rect.x = INNER_BORDER - entry->scroll_offset + ranges[2*i] / PANGO_SCALE; rect.y = y_pos; rect.width = (ranges[2*i + 1] - ranges[2*i]) / PANGO_SCALE; rect.height = logical_rect.height / PANGO_SCALE; gdk_draw_rectangle (entry->text_area, widget->style->bg_gc [GTK_STATE_SELECTED], TRUE, rect.x, rect.y, rect.width, rect.height); gdk_region_union_with_rect (clip_region, &rect); } gdk_gc_set_clip_region (widget->style->fg_gc [GTK_STATE_SELECTED], clip_region); gdk_draw_layout (entry->text_area, widget->style->fg_gc [GTK_STATE_SELECTED], INNER_BORDER - entry->scroll_offset, y_pos, layout); gdk_gc_set_clip_region (widget->style->fg_gc [GTK_STATE_SELECTED], NULL); gdk_region_destroy (clip_region); g_free (ranges); } g_object_unref (G_OBJECT (layout)); } } static void gtk_entry_draw_cursor (GtkEntry *entry) { g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); if (!entry->visible && entry->invisible_char == 0) return; if (GTK_WIDGET_DRAWABLE (entry)) { GtkWidget *widget = GTK_WIDGET (entry); if (GTK_WIDGET_HAS_FOCUS (widget) && (entry->selection_bound == entry->current_pos)) { gint xoffset = INNER_BORDER - entry->scroll_offset; gint strong_x, weak_x; gint text_area_height; gdk_window_get_size (entry->text_area, NULL, &text_area_height); gtk_entry_get_cursor_locations (entry, &strong_x, &weak_x); gdk_draw_line (entry->text_area, widget->style->bg_gc[GTK_STATE_SELECTED], xoffset + strong_x, INNER_BORDER, xoffset + strong_x, text_area_height - INNER_BORDER); if (weak_x != strong_x) gdk_draw_line (entry->text_area, widget->style->fg_gc[GTK_STATE_NORMAL], xoffset + weak_x, INNER_BORDER, xoffset + weak_x, text_area_height - INNER_BORDER); } } } static void gtk_entry_queue_draw (GtkEntry *entry) { g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); if (GTK_WIDGET_REALIZED (entry)) { GdkRectangle rect = { 0 }; gdk_window_get_size (entry->text_area, &rect.width, &rect.height); gdk_window_invalidate_rect (entry->text_area, &rect, FALSE); } } static void gtk_entry_reset_im_context (GtkEntry *entry) { if (entry->need_im_reset) entry->need_im_reset = 0; gtk_im_context_reset (entry->im_context); } static gint gtk_entry_find_position (GtkEntry *entry, gint x) { PangoLayout *layout; PangoLayoutLine *line; gint index; gint pos; gboolean trailing; gint cursor_index = g_utf8_offset_to_pointer (entry->text, entry->current_pos) - entry->text; layout = gtk_entry_get_layout (entry, TRUE); line = pango_layout_get_lines (layout)->data; pango_layout_line_x_to_index (line, x * PANGO_SCALE, &index, &trailing); g_object_unref (G_OBJECT (layout)); if (index >= cursor_index && entry->preedit_length) { if (index >= cursor_index + entry->preedit_length) index -= entry->preedit_length; else { index = cursor_index; trailing = 0; } } pos = g_utf8_pointer_to_offset (entry->text, entry->text + index); if (trailing) pos += 1; return pos; } static void gtk_entry_get_cursor_locations (GtkEntry *entry, gint *strong_x, gint *weak_x) { PangoLayout *layout = gtk_entry_get_layout (entry, TRUE); const gchar *text; PangoRectangle strong_pos, weak_pos; gint index; text = pango_layout_get_text (layout); index = g_utf8_offset_to_pointer (text, entry->current_pos + entry->preedit_cursor) - text; pango_layout_get_cursor_pos (layout, index, &strong_pos, &weak_pos); g_object_unref (G_OBJECT (layout)); if (strong_x) *strong_x = strong_pos.x / PANGO_SCALE; if (weak_x) *weak_x = weak_pos.x / PANGO_SCALE; } static void gtk_entry_adjust_scroll (GtkEntry *entry) { GtkWidget *widget; gint min_offset, max_offset; gint text_area_width; gint strong_x, weak_x; gint strong_xoffset, weak_xoffset; PangoLayout *layout; PangoLayoutLine *line; PangoRectangle logical_rect; g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); widget = GTK_WIDGET (entry); if (!GTK_WIDGET_REALIZED (entry)) return; gdk_window_get_size (entry->text_area, &text_area_width, NULL); text_area_width -= 2 * INNER_BORDER; layout = gtk_entry_get_layout (entry, TRUE); line = pango_layout_get_lines (layout)->data; pango_layout_line_get_extents (line, NULL, &logical_rect); g_object_unref (G_OBJECT (layout)); /* Display as much text as we can */ if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR) { min_offset = 0; max_offset = MAX (min_offset, logical_rect.width / PANGO_SCALE - text_area_width); } else { max_offset = logical_rect.width / PANGO_SCALE - text_area_width; min_offset = MIN (0, max_offset); } entry->scroll_offset = CLAMP (entry->scroll_offset, min_offset, max_offset); /* And make sure cursors are on screen. Note that the cursor is * actually drawn one pixel into the INNER_BORDER space on * the right, when the scroll is at the utmost right. This * looks better to to me than confining the cursor inside the * border entirely, though it means that the cursor gets one * pixel closer to the the edge of the widget on the right than * on the left. This might need changing if one changed * INNER_BORDER from 2 to 1, as one would do on a * small-screen-real-estate display. * * We always make sure that the strong cursor is on screen, and * put the weak cursor on screen if possible. */ gtk_entry_get_cursor_locations (entry, &strong_x, &weak_x); strong_xoffset = strong_x - entry->scroll_offset; if (strong_xoffset < 0) { entry->scroll_offset += strong_xoffset; strong_xoffset = 0; } else if (strong_xoffset > text_area_width) { entry->scroll_offset += strong_xoffset - text_area_width; strong_xoffset = text_area_width; } weak_xoffset = weak_x - entry->scroll_offset; if (weak_xoffset < 0 && strong_xoffset - weak_xoffset <= text_area_width) { entry->scroll_offset += weak_xoffset; } else if (weak_xoffset > text_area_width && strong_xoffset - (weak_xoffset - text_area_width) >= 0) { entry->scroll_offset += weak_xoffset - text_area_width; } } static gint gtk_entry_move_visually (GtkEntry *entry, gint start, gint count) { gint index; PangoLayout *layout = gtk_entry_get_layout (entry, FALSE); const gchar *text; text = pango_layout_get_text (layout); index = g_utf8_offset_to_pointer (text, start) - text; while (count != 0) { int new_index, new_trailing; if (count > 0) { pango_layout_move_cursor_visually (layout, index, 0, 1, &new_index, &new_trailing); count--; } else { pango_layout_move_cursor_visually (layout, index, 0, -1, &new_index, &new_trailing); count++; } if (new_index < 0 || new_index == G_MAXINT) break; if (new_trailing) index = g_utf8_next_char (entry->text + new_index) - entry->text; else index = new_index; } g_object_unref (G_OBJECT (layout)); return g_utf8_pointer_to_offset (text, text + index); } static gint gtk_entry_move_forward_word (GtkEntry *entry, gint start) { gint new_pos = start; /* Prevent any leak of information */ if (!entry->visible) { new_pos = entry->text_length; } else if (entry->text && (new_pos < entry->text_length)) { PangoLayout *layout = gtk_entry_get_layout (entry, FALSE); PangoLogAttr *log_attrs; gint n_attrs; pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs); /* Advance over white space */ while (new_pos < n_attrs && log_attrs[new_pos].is_white) new_pos++; /* Find the next word beginning */ new_pos++; while (new_pos < n_attrs && !log_attrs[new_pos].is_word_stop) new_pos++; /* Back up over white space */ while (new_pos > 0 && log_attrs[new_pos - 1].is_white) new_pos--; g_free (log_attrs); g_object_unref (G_OBJECT (layout)); } return new_pos; } static gint gtk_entry_move_backward_word (GtkEntry *entry, gint start) { gint new_pos = start; /* Prevent any leak of information */ if (!entry->visible) { new_pos = 0; } else if (entry->text && start > 0) { PangoLayout *layout = gtk_entry_get_layout (entry, FALSE); PangoLogAttr *log_attrs; gint n_attrs; pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs); new_pos = start - 1; /* Find the previous word beginning */ while (new_pos > 0 && !log_attrs[new_pos].is_word_stop) new_pos--; g_free (log_attrs); g_object_unref (G_OBJECT (layout)); } return new_pos; } static void gtk_entry_delete_whitespace (GtkEntry *entry) { PangoLayout *layout = gtk_entry_get_layout (entry, FALSE); PangoLogAttr *log_attrs; gint n_attrs; gint start, end; pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs); start = end = entry->current_pos; while (start > 0 && log_attrs[start-1].is_white) start--; while (end < n_attrs && log_attrs[start-1].is_white) end++; g_free (log_attrs); g_object_unref (G_OBJECT (layout)); if (start != end) gtk_editable_delete_text (GTK_EDITABLE (entry), start, end); } static void gtk_entry_select_word (GtkEntry *entry) { gint start_pos = gtk_entry_move_backward_word (entry, entry->current_pos); gint end_pos = gtk_entry_move_forward_word (entry, entry->current_pos); gtk_editable_select_region (GTK_EDITABLE (entry), start_pos, end_pos); } static void gtk_entry_select_line (GtkEntry *entry) { gtk_editable_select_region (GTK_EDITABLE (entry), 0, -1); } /* * Like gtk_editable_get_chars, but if the editable is not * visible, return asterisks; also convert result to UTF-8. */ static char * gtk_entry_get_public_chars (GtkEntry *entry, gint start, gint end) { if (end < 0) end = entry->text_length; if (entry->visible) return gtk_editable_get_chars (GTK_EDITABLE (entry), start, end); else { gchar *str; gint i; gint n_chars = end - start; str = g_malloc (n_chars + 1); for (i = 0; i < n_chars; i++) str[i] = '*'; str[i] = '\0'; return str; } } static void paste_received (GtkClipboard *clipboard, const gchar *text, gpointer data) { GtkEntry *entry = GTK_ENTRY (data); GtkEditable *editable = GTK_EDITABLE (entry); if (text) { gint pos = entry->current_pos; gtk_editable_insert_text (editable, text, -1, &pos); gtk_editable_set_position (editable, pos); } g_object_unref (G_OBJECT (entry)); } static void gtk_entry_paste (GtkEntry *entry, GdkAtom selection) { g_object_ref (G_OBJECT (entry)); gtk_clipboard_request_text (gtk_clipboard_get (selection), paste_received, entry); } static void primary_get_cb (GtkClipboard *clipboard, GtkSelectionData *selection_data, guint info, gpointer data) { GtkEntry *entry = GTK_ENTRY (data); gint start, end; if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start, &end)) { gchar *str = gtk_entry_get_public_chars (entry, start, end); gtk_selection_data_set_text (selection_data, str); g_free (str); } } static void primary_clear_cb (GtkClipboard *clipboard, gpointer data) { GtkEntry *entry = GTK_ENTRY (data); gtk_editable_select_region (GTK_EDITABLE (entry), entry->current_pos, entry->current_pos); } static void gtk_entry_update_primary_selection (GtkEntry *entry) { static const GtkTargetEntry targets[] = { { "UTF8_STRING", 0, 0 }, { "STRING", 0, 0 }, { "TEXT", 0, 0 }, { "COMPOUND_TEXT", 0, 0 } }; GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY); gint start, end; if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start, &end)) { if (!gtk_clipboard_set_with_owner (clipboard, targets, G_N_ELEMENTS (targets), primary_get_cb, primary_clear_cb, G_OBJECT (entry))) primary_clear_cb (clipboard, entry); } else { if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (entry)) gtk_clipboard_clear (clipboard); } } /* Public API */ GtkWidget* gtk_entry_new (void) { return GTK_WIDGET (gtk_type_new (GTK_TYPE_ENTRY)); } GtkWidget* gtk_entry_new_with_max_length (guint16 max) { GtkEntry *entry; entry = gtk_type_new (GTK_TYPE_ENTRY); entry->text_max_length = max; return GTK_WIDGET (entry); } void gtk_entry_set_text (GtkEntry *entry, const gchar *text) { gint tmp_pos; GtkEditable *editable; g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); g_return_if_fail (text != NULL); editable = GTK_EDITABLE (entry); gtk_editable_delete_text (GTK_EDITABLE(entry), 0, -1); tmp_pos = 0; gtk_editable_insert_text (editable, text, strlen (text), &tmp_pos); } void gtk_entry_append_text (GtkEntry *entry, const gchar *text) { gint tmp_pos; g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); g_return_if_fail (text != NULL); tmp_pos = entry->text_length; gtk_editable_insert_text (GTK_EDITABLE(entry), text, -1, &tmp_pos); } void gtk_entry_prepend_text (GtkEntry *entry, const gchar *text) { gint tmp_pos; g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); g_return_if_fail (text != NULL); tmp_pos = 0; gtk_editable_insert_text (GTK_EDITABLE(entry), text, -1, &tmp_pos); } void gtk_entry_set_position (GtkEntry *entry, gint position) { g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); gtk_editable_set_position (GTK_EDITABLE (entry), position); } void gtk_entry_set_visibility (GtkEntry *entry, gboolean visible) { g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); entry->visible = visible ? TRUE : FALSE; gtk_entry_recompute (entry); } void gtk_entry_set_invisible_char (GtkEntry *entry, gunichar ch) { g_return_if_fail (GTK_IS_ENTRY (entry)); if (ch == entry->invisible_char) return; entry->invisible_char = ch; gtk_entry_recompute (entry); } void gtk_entry_set_editable(GtkEntry *entry, gboolean editable) { g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); gtk_editable_set_editable (GTK_EDITABLE (entry), editable); } gchar* gtk_entry_get_text (GtkEntry *entry) { g_return_val_if_fail (entry != NULL, NULL); g_return_val_if_fail (GTK_IS_ENTRY (entry), NULL); return entry->text; } void gtk_entry_select_region (GtkEntry *entry, gint start, gint end) { gtk_editable_select_region (GTK_EDITABLE (entry), start, end); } void gtk_entry_set_max_length (GtkEntry *entry, guint16 max) { g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); if (max && entry->text_length > max) gtk_editable_delete_text (GTK_EDITABLE(entry), max, -1); entry->text_max_length = max; } /* Quick hack of a popup menu */ static void activate_cb (GtkWidget *menuitem, GtkEntry *entry) { const gchar *signal = gtk_object_get_data (GTK_OBJECT (menuitem), "gtk-signal"); gtk_signal_emit_by_name (GTK_OBJECT (entry), signal); } static void append_action_signal (GtkEntry *entry, GtkWidget *menu, const gchar *label, const gchar *signal) { GtkWidget *menuitem = gtk_menu_item_new_with_label (label); gtk_object_set_data (GTK_OBJECT (menuitem), "gtk-signal", (char *)signal); gtk_signal_connect (GTK_OBJECT (menuitem), "activate", activate_cb, entry); gtk_widget_show (menuitem); gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem); } static void popup_menu_detach (GtkWidget *attach_widget, GtkMenu *menu) { GTK_ENTRY (attach_widget)->popup_menu = NULL; } static void gtk_entry_popup_menu (GtkEntry *entry, GdkEventButton *event) { if (!entry->popup_menu) { GtkWidget *menuitem; entry->popup_menu = gtk_menu_new (); gtk_menu_attach_to_widget (GTK_MENU (entry->popup_menu), GTK_WIDGET (entry), popup_menu_detach); append_action_signal (entry, entry->popup_menu, _("Cut"), "cut_clipboard"); append_action_signal (entry, entry->popup_menu, _("Copy"), "copy_clipboard"); append_action_signal (entry, entry->popup_menu, _("Paste"), "paste_clipboard"); menuitem = gtk_menu_item_new (); /* Separator */ gtk_widget_show (menuitem); gtk_menu_shell_append (GTK_MENU_SHELL (entry->popup_menu), menuitem); gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (entry->im_context), GTK_MENU_SHELL (entry->popup_menu)); } gtk_menu_popup (GTK_MENU (entry->popup_menu), NULL, NULL, NULL, NULL, event->button, event->time); }