/* 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 Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #ifdef USE_XIM #include "gdk/gdkx.h" #endif #include "gdk/gdkkeysyms.h" #include "gdk/gdki18n.h" #include "gtkentry.h" #include "gtkmain.h" #include "gtkselection.h" #include "gtksignal.h" #define MIN_ENTRY_WIDTH 150 #define DRAW_TIMEOUT 20 #define INNER_BORDER 2 enum { ACTIVATE, LAST_SIGNAL }; static void gtk_entry_class_init (GtkEntryClass *klass); static void gtk_entry_init (GtkEntry *entry); static void gtk_entry_finalize (GtkObject *object); static void gtk_entry_realize (GtkWidget *widget); static void gtk_entry_unrealize (GtkWidget *widget); static void gtk_entry_draw_focus (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_make_backing_pixmap (GtkEntry *entry, gint width, gint height); static void gtk_entry_draw (GtkWidget *widget, GdkRectangle *area); 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_draw_text (GtkEntry *entry); static void gtk_entry_draw_cursor (GtkEntry *entry); static void gtk_entry_draw_cursor_on_drawable (GtkEntry *entry, GdkDrawable *drawable); static void gtk_entry_queue_draw (GtkEntry *entry); static gint gtk_entry_timer (gpointer data); static gint gtk_entry_position (GtkEntry *entry, gint x); void gtk_entry_adjust_scroll (GtkEntry *entry); static void gtk_entry_grow_text (GtkEntry *entry); 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 void gtk_entry_update_text (GtkEditable *editable, gint start_pos, gint end_pos); static gchar *gtk_entry_get_chars (GtkEditable *editable, gint start_pos, gint end_pos); static gint move_backward_character (gchar *str, gint index); static void gtk_move_forward_character (GtkEntry *entry); static void gtk_move_backward_character (GtkEntry *entry); static void gtk_move_forward_word (GtkEntry *entry); static void gtk_move_backward_word (GtkEntry *entry); static void gtk_move_beginning_of_line (GtkEntry *entry); static void gtk_move_end_of_line (GtkEntry *entry); static void gtk_delete_forward_character (GtkEntry *entry); static void gtk_delete_backward_character (GtkEntry *entry); static void gtk_delete_forward_word (GtkEntry *entry); static void gtk_delete_backward_word (GtkEntry *entry); static void gtk_delete_line (GtkEntry *entry); static void gtk_delete_to_line_end (GtkEntry *entry); static void gtk_select_word (GtkEntry *entry); static void gtk_select_line (GtkEntry *entry); static void gtk_entry_set_selection (GtkEditable *editable, gint start, gint end); static GtkWidgetClass *parent_class = NULL; static gint entry_signals[LAST_SIGNAL] = { 0 }; static GdkAtom ctext_atom = GDK_NONE; static GtkTextFunction control_keys[26] = { (GtkTextFunction)gtk_move_beginning_of_line, /* a */ (GtkTextFunction)gtk_move_backward_character, /* b */ gtk_editable_copy_clipboard, /* c */ (GtkTextFunction)gtk_delete_forward_character, /* d */ (GtkTextFunction)gtk_move_end_of_line, /* e */ (GtkTextFunction)gtk_move_forward_character, /* f */ NULL, /* g */ (GtkTextFunction)gtk_delete_backward_character, /* h */ NULL, /* i */ NULL, /* j */ (GtkTextFunction)gtk_delete_to_line_end, /* k */ NULL, /* l */ NULL, /* m */ NULL, /* n */ NULL, /* o */ NULL, /* p */ NULL, /* q */ NULL, /* r */ NULL, /* s */ NULL, /* t */ (GtkTextFunction)gtk_delete_line, /* u */ gtk_editable_paste_clipboard, /* v */ (GtkTextFunction)gtk_delete_backward_word, /* w */ gtk_editable_cut_clipboard, /* x */ NULL, /* y */ NULL, /* z */ }; static GtkTextFunction alt_keys[26] = { NULL, /* a */ (GtkTextFunction)gtk_move_backward_word, /* b */ NULL, /* c */ (GtkTextFunction)gtk_delete_forward_word, /* d */ NULL, /* e */ (GtkTextFunction)gtk_move_forward_word, /* f */ NULL, /* g */ NULL, /* h */ NULL, /* i */ NULL, /* j */ NULL, /* k */ NULL, /* l */ NULL, /* m */ NULL, /* n */ NULL, /* o */ NULL, /* p */ NULL, /* q */ NULL, /* r */ NULL, /* s */ NULL, /* t */ NULL, /* u */ NULL, /* v */ NULL, /* w */ NULL, /* x */ NULL, /* y */ NULL, /* z */ }; guint gtk_entry_get_type () { static guint entry_type = 0; if (!entry_type) { GtkTypeInfo entry_info = { "GtkEntry", sizeof (GtkEntry), sizeof (GtkEntryClass), (GtkClassInitFunc) gtk_entry_class_init, (GtkObjectInitFunc) gtk_entry_init, (GtkArgSetFunc) NULL, (GtkArgGetFunc) NULL, }; entry_type = gtk_type_unique (gtk_editable_get_type (), &entry_info); } return entry_type; } static void gtk_entry_class_init (GtkEntryClass *class) { GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkEditableClass *editable_class; object_class = (GtkObjectClass*) class; widget_class = (GtkWidgetClass*) class; editable_class = (GtkEditableClass*) class; parent_class = gtk_type_class (gtk_editable_get_type ()); entry_signals[ACTIVATE] = gtk_signal_new ("activate", GTK_RUN_LAST, object_class->type, GTK_SIGNAL_OFFSET (GtkEntryClass, activate), gtk_signal_default_marshaller, GTK_TYPE_NONE, 0); gtk_object_class_add_signals (object_class, entry_signals, LAST_SIGNAL); object_class->finalize = gtk_entry_finalize; 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; editable_class->insert_text = gtk_entry_insert_text; editable_class->delete_text = gtk_entry_delete_text; editable_class->update_text = gtk_entry_update_text; editable_class->get_chars = gtk_entry_get_chars; editable_class->set_selection = gtk_entry_set_selection; editable_class->changed = (void (*)(GtkEditable *)) gtk_entry_adjust_scroll; class->activate = NULL; } static void gtk_entry_init (GtkEntry *entry) { GTK_WIDGET_SET_FLAGS (entry, GTK_CAN_FOCUS); entry->text_area = NULL; entry->backing_pixmap = NULL; entry->text = NULL; entry->text_size = 0; entry->text_length = 0; entry->text_max_length = 0; entry->scroll_offset = 0; entry->timer = 0; entry->visible = 1; gtk_entry_grow_text (entry); } GtkWidget* gtk_entry_new () { return GTK_WIDGET (gtk_type_new (gtk_entry_get_type ())); } GtkWidget* gtk_entry_new_with_max_length (guint16 max) { GtkEntry *entry; entry = gtk_type_new (gtk_entry_get_type ()); 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_entry_delete_text (GTK_EDITABLE(entry), 0, entry->text_length); tmp_pos = 0; gtk_editable_insert_text (editable, text, strlen (text), &tmp_pos); editable->current_pos = tmp_pos; editable->selection_start_pos = 0; editable->selection_end_pos = 0; if (GTK_WIDGET_DRAWABLE (entry)) gtk_entry_draw_text (entry); } 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)); tmp_pos = entry->text_length; gtk_editable_insert_text (GTK_EDITABLE(entry), text, strlen (text), &tmp_pos); GTK_EDITABLE(entry)->current_pos = 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)); tmp_pos = 0; gtk_editable_insert_text (GTK_EDITABLE(entry), text, strlen (text), &tmp_pos); GTK_EDITABLE(entry)->current_pos = 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)); if ((position == -1) || (position > entry->text_length)) GTK_EDITABLE(entry)->current_pos = entry->text_length; else GTK_EDITABLE(entry)->current_pos = 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; } 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(entry)->editable = editable; gtk_entry_queue_draw(entry); } gchar* gtk_entry_get_text (GtkEntry *entry) { static char empty_str[2] = ""; g_return_val_if_fail (entry != NULL, NULL); g_return_val_if_fail (GTK_IS_ENTRY (entry), NULL); if (!entry->text) return empty_str; return entry->text; } static void gtk_entry_finalize (GtkObject *object) { GtkEntry *entry; g_return_if_fail (object != NULL); g_return_if_fail (GTK_IS_ENTRY (object)); entry = GTK_ENTRY (object); #ifdef USE_XIM if (GTK_EDITABLE(entry)->ic) { gdk_ic_destroy (GTK_EDITABLE(entry)->ic); GTK_EDITABLE(entry)->ic = NULL; } #endif if (entry->timer) gtk_timeout_remove (entry->timer); entry->text_size = 0; if (entry->text) g_free (entry->text); entry->text = NULL; if (entry->backing_pixmap) gdk_pixmap_unref (entry->backing_pixmap); (* GTK_OBJECT_CLASS (parent_class)->finalize) (object); } static void gtk_entry_realize (GtkWidget *widget) { GtkEntry *entry; GtkEditable *editable; 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); attributes.window_type = GDK_WINDOW_CHILD; attributes.x = widget->allocation.x; attributes.y = widget->allocation.y; attributes.width = widget->allocation.width; attributes.height = widget->allocation.height; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.colormap = gtk_widget_get_colormap (widget); attributes.event_mask = 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 | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_KEY_PRESS_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->klass->xthickness + INNER_BORDER; attributes.y = widget->style->klass->ythickness + INNER_BORDER; attributes.width = widget->allocation.width - attributes.x * 2; attributes.height = widget->allocation.height - attributes.y * 2; attributes.cursor = entry->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_STATE_NORMAL]); gdk_window_set_background (entry->text_area, &widget->style->base[GTK_STATE_NORMAL]); #ifdef USE_XIM if (gdk_im_ready ()) { GdkPoint spot; GdkRectangle rect; gint width, height; GdkEventMask mask; GdkIMStyle style; GdkIMStyle supported_style = GdkIMPreeditNone | GdkIMPreeditNothing | GdkIMPreeditPosition | GdkIMStatusNone | GdkIMStatusNothing; if (widget->style && widget->style->font->type != GDK_FONT_FONTSET) supported_style &= ~GdkIMPreeditPosition; style = gdk_im_decide_style (supported_style); switch (style & GdkIMPreeditMask) { case GdkIMPreeditPosition: if (widget->style && widget->style->font->type != GDK_FONT_FONTSET) { g_warning ("over-the-spot style requires fontset"); break; } gdk_window_get_size (entry->text_area, &width, &height); rect.x = 0; rect.y = 0; rect.width = width; rect.height = height; spot.x = 0; spot.y = height; editable->ic = gdk_ic_new (entry->text_area, entry->text_area, style, "spotLocation", &spot, "area", &rect, "fontSet", GDK_FONT_XFONT (widget->style->font), NULL); break; default: editable->ic = gdk_ic_new (entry->text_area, entry->text_area, style, NULL); } if (editable->ic == NULL) g_warning ("Can't create input context."); else { GdkColormap *colormap; mask = gdk_window_get_events (entry->text_area); mask |= gdk_ic_get_events (editable->ic); gdk_window_set_events (entry->text_area, mask); if ((colormap = gtk_widget_get_colormap (widget)) != gtk_widget_get_default_colormap ()) { gdk_ic_set_attr (editable->ic, "preeditAttributes", "colorMap", GDK_COLORMAP_XCOLORMAP (colormap), NULL); } gdk_ic_set_attr (editable->ic,"preeditAttributes", "foreground", widget->style->fg[GTK_STATE_NORMAL].pixel, "background", widget->style->base[GTK_STATE_NORMAL].pixel, NULL); } } #endif gdk_window_show (entry->text_area); if (editable->selection_start_pos != editable->selection_end_pos) gtk_editable_claim_selection (editable, TRUE, GDK_CURRENT_TIME); } 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); if (entry->text_area) { gdk_window_set_user_data (entry->text_area, NULL); gdk_window_destroy (entry->text_area); entry->text_area = NULL; gdk_cursor_destroy (entry->cursor); entry->cursor = NULL; } if (GTK_WIDGET_CLASS (parent_class)->unrealize) (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); } 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; } else { gdk_draw_rectangle (widget->window, widget->style->base_gc[GTK_WIDGET_STATE(widget)], FALSE, x + 2, y + 2, width - 5, height - 5); } gtk_draw_shadow (widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN, x, y, width, height); if (GTK_WIDGET_HAS_FOCUS (widget)) { gdk_window_get_size (widget->window, &width, &height); gdk_draw_rectangle (widget->window, widget->style->fg_gc[GTK_STATE_NORMAL], FALSE, 0, 0, width - 1, height - 1); } gtk_entry_draw_cursor (GTK_ENTRY (widget)); } } static void gtk_entry_size_request (GtkWidget *widget, GtkRequisition *requisition) { g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_ENTRY (widget)); g_return_if_fail (requisition != NULL); requisition->width = MIN_ENTRY_WIDTH + (widget->style->klass->xthickness + INNER_BORDER) * 2; requisition->height = (widget->style->font->ascent + widget->style->font->descent + (widget->style->klass->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)) { gdk_window_move_resize (widget->window, allocation->x, allocation->y + (allocation->height - widget->requisition.height) / 2, allocation->width, widget->requisition.height); gdk_window_move_resize (entry->text_area, widget->style->klass->xthickness + INNER_BORDER, widget->style->klass->ythickness + INNER_BORDER, allocation->width - (widget->style->klass->xthickness + INNER_BORDER) * 2, widget->requisition.height - (widget->style->klass->ythickness + INNER_BORDER) * 2); entry->scroll_offset = 0; gtk_entry_adjust_scroll (entry); #ifdef USE_XIM if (editable->ic && (gdk_ic_get_style (editable->ic) & GdkIMPreeditPosition)) { gint width, height; GdkRectangle rect; gdk_window_get_size (entry->text_area, &width, &height); rect.x = 0; rect.y = 0; rect.width = width; rect.height = height; gdk_ic_set_attr (editable->ic, "preeditAttributes", "area", &rect, NULL); } #endif } } static void gtk_entry_draw (GtkWidget *widget, GdkRectangle *area) { g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_ENTRY (widget)); g_return_if_fail (area != NULL); if (GTK_WIDGET_DRAWABLE (widget)) { gtk_widget_draw_focus (widget); gtk_entry_draw_text (GTK_ENTRY (widget)); } } 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)); return FALSE; } static gint gtk_entry_button_press (GtkWidget *widget, GdkEventButton *event) { GtkEntry *entry; GtkEditable *editable; gint tmp_pos; 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); if (ctext_atom == GDK_NONE) ctext_atom = gdk_atom_intern ("COMPOUND_TEXT", FALSE); entry = GTK_ENTRY (widget); editable = GTK_EDITABLE (widget); if (!GTK_WIDGET_HAS_FOCUS (widget)) gtk_widget_grab_focus (widget); if (event->button == 1) { switch (event->type) { case GDK_BUTTON_PRESS: gtk_grab_add (widget); tmp_pos = gtk_entry_position (entry, event->x + entry->scroll_offset); /* Set it now, so we display things right. We'll unset it * later if things don't work out */ editable->has_selection = TRUE; gtk_entry_set_selection (editable, tmp_pos, tmp_pos); editable->current_pos = editable->selection_start_pos; break; case GDK_2BUTTON_PRESS: gtk_select_word (entry); break; case GDK_3BUTTON_PRESS: gtk_select_line (entry); break; default: break; } } else if (event->type == GDK_BUTTON_PRESS) { if ((event->button == 2) && editable->editable) { if (editable->selection_start_pos == editable->selection_end_pos || editable->has_selection) editable->current_pos = gtk_entry_position (entry, event->x + entry->scroll_offset); gtk_selection_convert (widget, GDK_SELECTION_PRIMARY, ctext_atom, event->time); } else { gtk_grab_add (widget); tmp_pos = gtk_entry_position (entry, event->x + entry->scroll_offset); gtk_entry_set_selection (editable, tmp_pos, tmp_pos); editable->has_selection = FALSE; editable->current_pos = editable->selection_start_pos; if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window) gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time); } } return FALSE; } static gint gtk_entry_button_release (GtkWidget *widget, GdkEventButton *event) { GtkEntry *entry; GtkEditable *editable; 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); if (event->button == 1) { entry = GTK_ENTRY (widget); editable = GTK_EDITABLE (widget); gtk_grab_remove (widget); editable->has_selection = FALSE; if (editable->selection_start_pos != editable->selection_end_pos) { if (gtk_selection_owner_set (widget, GDK_SELECTION_PRIMARY, event->time)) editable->has_selection = TRUE; else gtk_entry_queue_draw (entry); } else { if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window) gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time); } } else if (event->button == 3) { gtk_grab_remove (widget); } return FALSE; } static gint gtk_entry_motion_notify (GtkWidget *widget, GdkEventMotion *event) { GtkEntry *entry; gint x; 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); x = event->x; if (event->is_hint || (entry->text_area != event->window)) gdk_window_get_pointer (entry->text_area, &x, NULL, NULL); GTK_EDITABLE(entry)->selection_end_pos = gtk_entry_position (entry, event->x + entry->scroll_offset); GTK_EDITABLE(entry)->current_pos = GTK_EDITABLE(entry)->selection_end_pos; gtk_entry_adjust_scroll (entry); gtk_entry_queue_draw (entry); return FALSE; } static gint gtk_entry_key_press (GtkWidget *widget, GdkEventKey *event) { GtkEntry *entry; GtkEditable *editable; gint return_val; gint key; gint tmp_pos; gint extend_selection; gint extend_start; 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); editable = GTK_EDITABLE (widget); return_val = FALSE; if(editable->editable == FALSE) return FALSE; extend_selection = event->state & GDK_SHIFT_MASK; extend_start = FALSE; if (extend_selection) { if (editable->selection_start_pos == editable->selection_end_pos) { editable->selection_start_pos = editable->current_pos; editable->selection_end_pos = editable->current_pos; } extend_start = (editable->current_pos == editable->selection_start_pos); } switch (event->keyval) { case GDK_BackSpace: return_val = TRUE; if (editable->selection_start_pos != editable->selection_end_pos) gtk_editable_delete_selection (editable); else if (event->state & GDK_CONTROL_MASK) gtk_delete_backward_word (entry); else gtk_delete_backward_character (entry); break; case GDK_Clear: return_val = TRUE; gtk_delete_line (entry); break; case GDK_Insert: return_val = TRUE; if (event->state & GDK_SHIFT_MASK) { extend_selection = FALSE; gtk_editable_paste_clipboard (editable, event->time); } else if (event->state & GDK_CONTROL_MASK) { gtk_editable_copy_clipboard (editable, event->time); } else { /* gtk_toggle_insert(entry) -- IMPLEMENT */ } break; case GDK_Delete: return_val = TRUE; if (event->state & GDK_CONTROL_MASK) gtk_delete_line (entry); else if (event->state & GDK_SHIFT_MASK) gtk_editable_cut_clipboard (editable, event->time); else gtk_delete_forward_character (entry); break; case GDK_Home: return_val = TRUE; gtk_move_beginning_of_line (entry); break; case GDK_End: return_val = TRUE; gtk_move_end_of_line (entry); break; case GDK_Left: return_val = TRUE; gtk_move_backward_character (entry); break; case GDK_Right: return_val = TRUE; gtk_move_forward_character (entry); break; case GDK_Return: return_val = TRUE; gtk_signal_emit (GTK_OBJECT (entry), entry_signals[ACTIVATE]); break; /* The next two keys should not be inserted literally. Any others ??? */ case GDK_Tab: case GDK_Escape: break; default: if ((event->keyval >= 0x20) && (event->keyval <= 0xFF)) { key = event->keyval; if (event->state & GDK_CONTROL_MASK) { if ((key >= 'A') && (key <= 'Z')) key -= 'A' - 'a'; if ((key >= 'a') && (key <= 'z') && control_keys[key - 'a']) { (* control_keys[key - 'a']) (editable, event->time); return_val = TRUE; } break; } else if (event->state & GDK_MOD1_MASK) { if ((key >= 'A') && (key <= 'Z')) key -= 'A' - 'a'; if ((key >= 'a') && (key <= 'z') && alt_keys[key - 'a']) { (* alt_keys[key - 'a']) (editable, event->time); return_val = TRUE; } break; } } if (event->length > 0) { extend_selection = FALSE; gtk_editable_delete_selection (editable); tmp_pos = editable->current_pos; gtk_editable_insert_text (editable, event->string, event->length, &tmp_pos); editable->current_pos = tmp_pos; return_val = TRUE; } break; } if (return_val) { if (extend_selection) { if (editable->current_pos < editable->selection_start_pos) editable->selection_start_pos = editable->current_pos; else if (editable->current_pos > editable->selection_end_pos) editable->selection_end_pos = editable->current_pos; else { if (extend_start) editable->selection_start_pos = editable->current_pos; else editable->selection_end_pos = editable->current_pos; } } else { editable->selection_start_pos = 0; editable->selection_end_pos = 0; } gtk_editable_claim_selection (editable, editable->selection_start_pos != editable->selection_end_pos, event->time); gtk_entry_adjust_scroll (entry); gtk_entry_queue_draw (entry); } return return_val; } 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); #ifdef USE_XIM if (GTK_EDITABLE(widget)->ic) gdk_im_begin (GTK_EDITABLE(widget)->ic, GTK_ENTRY(widget)->text_area); #endif 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); #ifdef USE_XIM gdk_im_end (); #endif return FALSE; } static void gtk_entry_make_backing_pixmap (GtkEntry *entry, gint width, gint height) { gint pixmap_width, pixmap_height; if (!entry->backing_pixmap) { /* allocate */ entry->backing_pixmap = gdk_pixmap_new (entry->text_area, width, height, -1); } else { /* reallocate if sizes don't match */ gdk_window_get_size (entry->backing_pixmap, &pixmap_width, &pixmap_height); if ((pixmap_width != width) || (pixmap_height != height)) { gdk_pixmap_unref (entry->backing_pixmap); entry->backing_pixmap = gdk_pixmap_new (entry->text_area, width, height, -1); } } } static void gtk_entry_draw_text (GtkEntry *entry) { GtkWidget *widget; GtkEditable *editable; GtkStateType selected_state; gint selection_start_pos; gint selection_end_pos; gint selection_start_xoffset; gint selection_end_xoffset; gint width, height; gint y; GdkDrawable *drawable; gint use_backing_pixmap; g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); if (entry->timer) { gtk_timeout_remove (entry->timer); entry->timer = 0; } if (!entry->visible) { gtk_entry_draw_cursor (entry); return; } if (GTK_WIDGET_DRAWABLE (entry)) { widget = GTK_WIDGET (entry); editable = GTK_EDITABLE (entry); if (!entry->text) { gdk_window_clear (entry->text_area); if (editable->editable) gtk_entry_draw_cursor (entry); return; } gdk_window_get_size (entry->text_area, &width, &height); /* If the widget has focus, draw on a backing pixmap to avoid flickering and copy it to the text_area. Otherwise draw to text_area directly for better speed. */ use_backing_pixmap = GTK_WIDGET_HAS_FOCUS (widget) && (entry->text != NULL); if (use_backing_pixmap) { gtk_entry_make_backing_pixmap (entry, width, height); drawable = entry->backing_pixmap; gdk_draw_rectangle (drawable, widget->style->base_gc[GTK_WIDGET_STATE(widget)], TRUE, 0, 0, width, height); } else { drawable = entry->text_area; gdk_window_clear (entry->text_area); } y = (height - (widget->style->font->ascent + widget->style->font->descent)) / 2; y += widget->style->font->ascent; if (editable->selection_start_pos != editable->selection_end_pos) { selected_state = GTK_STATE_SELECTED; if (!editable->has_selection) selected_state = GTK_STATE_ACTIVE; selection_start_pos = MIN (editable->selection_start_pos, editable->selection_end_pos); selection_end_pos = MAX (editable->selection_start_pos, editable->selection_end_pos); selection_start_xoffset = gdk_text_width (widget->style->font, entry->text, selection_start_pos); selection_end_xoffset = gdk_text_width (widget->style->font, entry->text, selection_end_pos); if (selection_start_pos > 0) gdk_draw_text (drawable, widget->style->font, widget->style->fg_gc[GTK_STATE_NORMAL], -entry->scroll_offset, y, entry->text, selection_start_pos); gdk_draw_rectangle (drawable, widget->style->bg_gc[selected_state], TRUE, -entry->scroll_offset + selection_start_xoffset, 0, selection_end_xoffset - selection_start_xoffset, -1); gdk_draw_text (drawable, widget->style->font, widget->style->fg_gc[selected_state], -entry->scroll_offset + selection_start_xoffset, y, entry->text + selection_start_pos, selection_end_pos - selection_start_pos); if (selection_end_pos < entry->text_length) gdk_draw_string (drawable, widget->style->font, widget->style->fg_gc[GTK_STATE_NORMAL], -entry->scroll_offset + selection_end_xoffset, y, entry->text + selection_end_pos); } else { GdkGCValues values; gdk_gc_get_values (widget->style->fg_gc[GTK_STATE_NORMAL], &values); gdk_draw_string (drawable, widget->style->font, widget->style->fg_gc[GTK_STATE_NORMAL], -entry->scroll_offset, y, entry->text); } if (editable->editable) gtk_entry_draw_cursor_on_drawable (entry, drawable); if (use_backing_pixmap) gdk_draw_pixmap(entry->text_area, widget->style->fg_gc[GTK_STATE_NORMAL], entry->backing_pixmap, 0, 0, 0, 0, width, height); } } static void gtk_entry_draw_cursor (GtkEntry *entry) { g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); gtk_entry_draw_cursor_on_drawable (entry, entry->text_area); } static void gtk_entry_draw_cursor_on_drawable (GtkEntry *entry, GdkDrawable *drawable) { GtkWidget *widget; GtkEditable *editable; GdkGC *gc; gint xoffset; gint text_area_height; g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); if (GTK_WIDGET_DRAWABLE (entry)) { widget = GTK_WIDGET (entry); editable = GTK_EDITABLE (entry); if (editable->current_pos > 0 && entry->visible) xoffset = gdk_text_width (widget->style->font, entry->text, editable->current_pos); else xoffset = 0; xoffset -= entry->scroll_offset; if (GTK_WIDGET_HAS_FOCUS (widget) && (editable->selection_start_pos == editable->selection_end_pos)) gc = widget->style->fg_gc[GTK_STATE_NORMAL]; else gc = widget->style->base_gc[GTK_WIDGET_STATE(widget)]; gdk_window_get_size (entry->text_area, NULL, &text_area_height); gdk_draw_line (drawable, gc, xoffset, 0, xoffset, text_area_height); #ifdef USE_XIM if (gdk_im_ready() && editable->ic && gdk_ic_get_style (editable->ic) & GdkIMPreeditPosition) { GdkPoint spot; spot.x = xoffset; spot.y = (text_area_height + (widget->style->font->ascent - widget->style->font->descent) + 1) / 2; gdk_ic_set_attr (editable->ic, "preeditAttributes", "spotLocation", &spot, NULL); } #endif } } static void gtk_entry_queue_draw (GtkEntry *entry) { g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); if (!entry->timer) entry->timer = gtk_timeout_add (DRAW_TIMEOUT, gtk_entry_timer, entry); } static gint gtk_entry_timer (gpointer data) { GtkEntry *entry; g_return_val_if_fail (data != NULL, FALSE); entry = GTK_ENTRY (data); entry->timer = 0; gtk_entry_draw_text (entry); return FALSE; } static gint gtk_entry_position (GtkEntry *entry, gint x) { gint return_val; gint char_width; gint sum; gint i; gint len; g_return_val_if_fail (entry != NULL, 0); g_return_val_if_fail (GTK_IS_ENTRY (entry), 0); i = 0; sum = 0; if (x > sum) { for (; i < entry->text_length; i+=len) { len = mblen (entry->text+i, MB_CUR_MAX); /* character not supported in current locale is included */ if (len < 1) len = 1; char_width = gdk_text_width (GTK_WIDGET (entry)->style->font, entry->text + i, len); if (x < (sum + char_width / 2)) break; sum += char_width; } } return_val = i; return return_val; } void gtk_entry_adjust_scroll (GtkEntry *entry) { gint xoffset; gint text_area_width; g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); if (!entry->text_area) return; gdk_window_get_size (entry->text_area, &text_area_width, NULL); if (GTK_EDITABLE(entry)->current_pos > 0) xoffset = gdk_text_width (GTK_WIDGET (entry)->style->font, entry->text, GTK_EDITABLE(entry)->current_pos); else xoffset = 0; xoffset -= entry->scroll_offset; if (xoffset < 0) entry->scroll_offset += xoffset; else if (xoffset > text_area_width) entry->scroll_offset += (xoffset - text_area_width) + 1; } static void gtk_entry_grow_text (GtkEntry *entry) { gint previous_size; gint i; g_return_if_fail (entry != NULL); g_return_if_fail (GTK_IS_ENTRY (entry)); previous_size = entry->text_size; if (!entry->text_size) entry->text_size = 128; else entry->text_size *= 2; entry->text = g_realloc (entry->text, entry->text_size); for (i = previous_size; i < entry->text_size; i++) entry->text[i] = '\0'; } static void gtk_entry_insert_text (GtkEditable *editable, const gchar *new_text, gint new_text_length, gint *position) { gchar *text; gint start_pos; gint end_pos; gint last_pos; gint i; GtkEntry *entry; g_return_if_fail (editable != NULL); g_return_if_fail (GTK_IS_ENTRY (editable)); entry = GTK_ENTRY (editable); /* Make sure we do not exceed the maximum size of the entry. */ if (entry->text_max_length != 0 && new_text_length + entry->text_length > entry->text_max_length) new_text_length = entry->text_max_length - entry->text_length; /* Don't insert anything, if there was nothing to insert. */ if (new_text_length <= 0) return; start_pos = *position; end_pos = start_pos + new_text_length; last_pos = new_text_length + entry->text_length; if (editable->selection_start_pos >= *position) editable->selection_start_pos += new_text_length; if (editable->selection_end_pos >= *position) editable->selection_end_pos += new_text_length; while (last_pos >= entry->text_size) gtk_entry_grow_text (entry); text = entry->text; for (i = last_pos - 1; i >= end_pos; i--) text[i] = text[i- (end_pos - start_pos)]; for (i = start_pos; i < end_pos; i++) text[i] = new_text[i - start_pos]; entry->text_length += new_text_length; *position = end_pos; gtk_entry_queue_draw (entry); } static void gtk_entry_delete_text (GtkEditable *editable, gint start_pos, gint end_pos) { gchar *text; gint deletion_length; gint i; GtkEntry *entry; g_return_if_fail (editable != NULL); g_return_if_fail (GTK_IS_ENTRY (editable)); entry = GTK_ENTRY (editable); if (editable->selection_start_pos > start_pos) editable->selection_start_pos -= MIN(end_pos, editable->selection_start_pos) - start_pos; if (editable->selection_end_pos > start_pos) editable->selection_end_pos -= MIN(end_pos, editable->selection_end_pos) - start_pos; if (end_pos < 0) end_pos = entry->text_length; if ((start_pos < end_pos) && (start_pos >= 0) && (end_pos <= entry->text_length)) { text = entry->text; deletion_length = end_pos - start_pos; for (i = end_pos; i < entry->text_length; i++) text[i - deletion_length] = text[i]; for (i = entry->text_length - deletion_length; i < entry->text_length; i++) text[i] = '\0'; entry->text_length -= deletion_length; editable->current_pos = start_pos; } gtk_entry_queue_draw (entry); } static void gtk_entry_update_text (GtkEditable *editable, gint start_pos, gint end_pos) { gtk_entry_queue_draw (GTK_ENTRY(editable)); } gchar * gtk_entry_get_chars (GtkEditable *editable, gint start_pos, gint end_pos) { gchar *retval; GtkEntry *entry; gchar c; 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); c = entry->text[end_pos]; entry->text[end_pos] = '\0'; retval = g_strdup (&entry->text[start_pos]); entry->text[end_pos] = c; return retval; } static void gtk_move_forward_character (GtkEntry *entry) { gint len; GtkEditable *editable; editable = GTK_EDITABLE (entry); if (editable->current_pos < entry->text_length) { len = mblen (entry->text+editable->current_pos, MB_CUR_MAX); editable->current_pos += (len>0)? len:1; } if (editable->current_pos > entry->text_length) editable->current_pos = entry->text_length; } static gint move_backward_character (gchar *str, gint index) { gint i; gint len; if (index <= 0) return -1; for (i=0,len=0; icurrent_pos) { editable->current_pos = move_backward_character (entry->text, editable->current_pos); if (editable->current_pos < 0) editable->current_pos = 0; } } static void gtk_move_forward_word (GtkEntry *entry) { gchar *text; gint i; wchar_t c; gint len; GtkEditable *editable; editable = GTK_EDITABLE (entry); if (entry->text && (editable->current_pos < entry->text_length)) { text = entry->text; i = editable->current_pos; len = mbtowc (&c, text+i, MB_CUR_MAX); if (!iswalnum(c)) for (; i < entry->text_length; i+=len) { len = mbtowc (&c, text+i, MB_CUR_MAX); if (len < 1 || iswalnum(c)) break; } for (; i < entry->text_length; i+=len) { len = mbtowc (&c, text+i, MB_CUR_MAX); if (len < 1 || !iswalnum(c)) break; } editable->current_pos = i; if (editable->current_pos > entry->text_length) editable->current_pos = entry->text_length; } } static void gtk_move_backward_word (GtkEntry *entry) { gchar *text; gint i; wchar_t c; gint len; GtkEditable *editable; editable = GTK_EDITABLE (entry); if (entry->text) { text = entry->text; i=move_backward_character(text, editable->current_pos); if (i < 0) /* Per */ { editable->selection_start_pos = 0; editable->selection_end_pos = 0; return; } len = mbtowc (&c, text+i, MB_CUR_MAX); if (!iswalnum(c)) for (; i >= 0; i=move_backward_character(text, i)) { len = mbtowc (&c, text+i, MB_CUR_MAX); if (iswalnum(c)) break; } for (; i >= 0; i=move_backward_character(text, i)) { len = mbtowc (&c, text+i, MB_CUR_MAX); if (!iswalnum(c)) { i += len; break; } } if (i < 0) i = 0; editable->current_pos = i; } } static void gtk_move_beginning_of_line (GtkEntry *entry) { GTK_EDITABLE(entry)->current_pos = 0; } static void gtk_move_end_of_line (GtkEntry *entry) { GTK_EDITABLE(entry)->current_pos = entry->text_length; } static void gtk_delete_forward_character (GtkEntry *entry) { gint old_pos; GtkEditable *editable; editable = GTK_EDITABLE (entry); if (editable->selection_start_pos != editable->selection_end_pos) gtk_editable_delete_selection (editable); else { old_pos = editable->current_pos; gtk_move_forward_character (entry); gtk_editable_delete_text (editable, old_pos, editable->current_pos); } } static void gtk_delete_backward_character (GtkEntry *entry) { gint old_pos; GtkEditable *editable; editable = GTK_EDITABLE (entry); if (editable->selection_start_pos != editable->selection_end_pos) gtk_editable_delete_selection (editable); else { old_pos = editable->current_pos; gtk_move_backward_character (entry); gtk_editable_delete_text (editable, editable->current_pos, old_pos); } } static void gtk_delete_forward_word (GtkEntry *entry) { gint old_pos; GtkEditable *editable; editable = GTK_EDITABLE (entry); if (editable->selection_start_pos != editable->selection_end_pos) gtk_editable_delete_selection (editable); else { old_pos = editable->current_pos; gtk_move_forward_word (entry); gtk_editable_delete_text (editable, old_pos, editable->current_pos); } } static void gtk_delete_backward_word (GtkEntry *entry) { gint old_pos; GtkEditable *editable; editable = GTK_EDITABLE (entry); if (editable->selection_start_pos != editable->selection_end_pos) gtk_editable_delete_selection (editable); else { old_pos = editable->current_pos; gtk_move_backward_word (entry); gtk_editable_delete_text (editable, editable->current_pos, old_pos); } } static void gtk_delete_line (GtkEntry *entry) { gtk_editable_delete_text (GTK_EDITABLE(entry), 0, entry->text_length); } static void gtk_delete_to_line_end (GtkEntry *entry) { gtk_editable_delete_text (GTK_EDITABLE(entry), GTK_EDITABLE(entry)->current_pos, entry->text_length); } static void gtk_select_word (GtkEntry *entry) { gint start_pos; gint end_pos; GtkEditable *editable; editable = GTK_EDITABLE (entry); gtk_move_backward_word (entry); start_pos = editable->current_pos; gtk_move_forward_word (entry); end_pos = editable->current_pos; gtk_entry_set_selection (editable, start_pos, end_pos); } static void gtk_select_line (GtkEntry *entry) { GtkEditable *editable; editable = GTK_EDITABLE (entry); gtk_entry_set_selection (editable, 0, entry->text_length); editable->current_pos = editable->selection_end_pos; } static void gtk_entry_set_selection (GtkEditable *editable, gint start, gint end) { g_return_if_fail (GTK_IS_ENTRY (editable)); if (end < 0) end = GTK_ENTRY (editable)->text_length; editable->selection_start_pos = start; editable->selection_end_pos = end; gtk_entry_queue_draw (GTK_ENTRY (editable)); } void gtk_entry_select_region (GtkEntry *entry, gint start, gint end) { gtk_editable_select_region (GTK_EDITABLE(entry), start, end); }