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-rw-r--r--widgets/text/e-completion-view.c695
1 files changed, 0 insertions, 695 deletions
diff --git a/widgets/text/e-completion-view.c b/widgets/text/e-completion-view.c
deleted file mode 100644
index 2ffb19f3e3..0000000000
--- a/widgets/text/e-completion-view.c
+++ /dev/null
@@ -1,695 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-
-/*
- * ECompletionView - A text completion selection widget
- * Copyright (C) 2000, 2001 Ximian, Inc.
- *
- * Author: Jon Trowbridge <trow@ximian.com>
- * Adapted from code by Miguel de Icaza <miguel@ximian.com>
- */
-
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- */
-
-
-#include <config.h>
-#include <math.h>
-#include <gdk/gdkkeysyms.h>
-#include <gal/e-table/e-table-simple.h>
-#include <gal/e-table/e-table-scrolled.h>
-#include "e-completion-view.h"
-
-enum {
- E_COMPLETION_VIEW_NONEMPTY,
- E_COMPLETION_VIEW_ADDED,
- E_COMPLETION_VIEW_FULL,
- E_COMPLETION_VIEW_BROWSE,
- E_COMPLETION_VIEW_UNBROWSE,
- E_COMPLETION_VIEW_ACTIVATE,
- E_COMPLETION_VIEW_LAST_SIGNAL
-};
-
-static guint e_completion_view_signals[E_COMPLETION_VIEW_LAST_SIGNAL] = { 0 };
-
-static void e_completion_view_disconnect (ECompletionView *cv);
-static ETable *e_completion_view_table (ECompletionView *cv);
-static void e_completion_view_clear_choices (ECompletionView *cv);
-static void e_completion_view_set_cursor_row (ECompletionView *cv, gint r);
-static void e_completion_view_select (ECompletionView *cv, gint r);
-
-static gint e_completion_view_key_press_handler (GtkWidget *w, GdkEventKey *key_event, gpointer user_data);
-
-static void e_completion_view_class_init (ECompletionViewClass *klass);
-static void e_completion_view_init (ECompletionView *completion);
-static void e_completion_view_destroy (GtkObject *object);
-
-static GtkObjectClass *parent_class;
-
-
-
-static gint
-e_completion_view_local_key_press_handler (GtkWidget *w, GdkEventKey *ev)
-{
- return e_completion_view_key_press_handler (w, ev, w);
-}
-
-GtkType
-e_completion_view_get_type (void)
-{
- static GtkType completion_view_type = 0;
-
- if (!completion_view_type) {
- GtkTypeInfo completion_view_info = {
- "ECompletionView",
- sizeof (ECompletionView),
- sizeof (ECompletionViewClass),
- (GtkClassInitFunc) e_completion_view_class_init,
- (GtkObjectInitFunc) e_completion_view_init,
- NULL, NULL, /* reserved */
- (GtkClassInitFunc) NULL
- };
-
- completion_view_type = gtk_type_unique (gtk_event_box_get_type (), &completion_view_info);
- }
-
- return completion_view_type;
-}
-
-static void
-e_completion_view_class_init (ECompletionViewClass *klass)
-{
- GtkObjectClass *object_class = (GtkObjectClass *) klass;
- GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-
- parent_class = GTK_OBJECT_CLASS (gtk_type_class (gtk_event_box_get_type ()));
-
- e_completion_view_signals[E_COMPLETION_VIEW_NONEMPTY] =
- gtk_signal_new ("nonempty",
- GTK_RUN_LAST,
- object_class->type,
- GTK_SIGNAL_OFFSET (ECompletionViewClass, nonempty),
- gtk_marshal_NONE__NONE,
- GTK_TYPE_NONE, 0);
-
- e_completion_view_signals[E_COMPLETION_VIEW_ADDED] =
- gtk_signal_new ("added",
- GTK_RUN_LAST,
- object_class->type,
- GTK_SIGNAL_OFFSET (ECompletionViewClass, added),
- gtk_marshal_NONE__NONE,
- GTK_TYPE_NONE, 0);
-
- e_completion_view_signals[E_COMPLETION_VIEW_FULL] =
- gtk_signal_new ("full",
- GTK_RUN_LAST,
- object_class->type,
- GTK_SIGNAL_OFFSET (ECompletionViewClass, full),
- gtk_marshal_NONE__NONE,
- GTK_TYPE_NONE, 0);
-
- e_completion_view_signals[E_COMPLETION_VIEW_BROWSE] =
- gtk_signal_new ("browse",
- GTK_RUN_LAST,
- object_class->type,
- GTK_SIGNAL_OFFSET (ECompletionViewClass, browse),
- gtk_marshal_NONE__POINTER,
- GTK_TYPE_NONE, 1,
- GTK_TYPE_POINTER);
-
- e_completion_view_signals[E_COMPLETION_VIEW_UNBROWSE] =
- gtk_signal_new ("unbrowse",
- GTK_RUN_LAST,
- object_class->type,
- GTK_SIGNAL_OFFSET (ECompletionViewClass, unbrowse),
- gtk_marshal_NONE__NONE,
- GTK_TYPE_NONE, 0);
-
- e_completion_view_signals[E_COMPLETION_VIEW_ACTIVATE] =
- gtk_signal_new ("activate",
- GTK_RUN_LAST,
- object_class->type,
- GTK_SIGNAL_OFFSET (ECompletionViewClass, activate),
- gtk_marshal_NONE__POINTER_POINTER,
- GTK_TYPE_NONE, 2,
- GTK_TYPE_POINTER, GTK_TYPE_POINTER);
-
- gtk_object_class_add_signals (object_class, e_completion_view_signals, E_COMPLETION_VIEW_LAST_SIGNAL);
-
- object_class->destroy = e_completion_view_destroy;
-
- widget_class->key_press_event = e_completion_view_local_key_press_handler;
-}
-
-static void
-e_completion_view_init (ECompletionView *completion)
-{
-}
-
-static void
-e_completion_view_destroy (GtkObject *object)
-{
- ECompletionView *cv = E_COMPLETION_VIEW (object);
-
- e_completion_view_disconnect (cv);
- e_completion_view_clear_choices (cv);
-
- if (cv->key_widget) {
- gtk_signal_disconnect (GTK_OBJECT (cv->key_widget), cv->key_signal_id);
- gtk_object_unref (GTK_OBJECT (cv->key_widget));
- }
-
- if (cv->completion)
- gtk_object_unref (GTK_OBJECT (cv->completion));
-
-
- if (parent_class->destroy)
- (parent_class->destroy) (object);
-}
-
-static void
-e_completion_view_disconnect (ECompletionView *cv)
-{
- g_return_if_fail (cv != NULL);
- g_return_if_fail (E_IS_COMPLETION_VIEW (cv));
-
- if (cv->begin_signal_id)
- gtk_signal_disconnect (GTK_OBJECT (cv->completion), cv->begin_signal_id);
- if (cv->comp_signal_id)
- gtk_signal_disconnect (GTK_OBJECT (cv->completion), cv->comp_signal_id);
- if (cv->restart_signal_id)
- gtk_signal_disconnect (GTK_OBJECT (cv->completion), cv->restart_signal_id);
- if (cv->cancel_signal_id)
- gtk_signal_disconnect (GTK_OBJECT (cv->completion), cv->cancel_signal_id);
- if (cv->end_signal_id)
- gtk_signal_disconnect (GTK_OBJECT (cv->completion), cv->end_signal_id);
-
- cv->begin_signal_id = 0;
- cv->comp_signal_id = 0;
- cv->restart_signal_id = 0;
- cv->end_signal_id = 0;
-}
-
-static ETable *
-e_completion_view_table (ECompletionView *cv)
-{
- return e_table_scrolled_get_table (E_TABLE_SCROLLED (cv->table));
-}
-
-static void
-e_completion_view_clear_choices (ECompletionView *cv)
-{
- GList *i;
-
- g_return_if_fail (cv != NULL);
- g_return_if_fail (E_IS_COMPLETION_VIEW (cv));
-
- for (i = cv->choices; i != NULL; i = g_list_next (i))
- g_free (i->data);
-
- g_list_free (cv->choices);
- cv->choices = NULL;
-
- cv->choice_count = 0;
-}
-
-static void
-e_completion_view_set_cursor_row (ECompletionView *cv, gint r)
-{
- ETable *table;
- GtkAdjustment *adj;
- gint x, y1, y2, r1, r2, c;
- double fracline;
- gint iteration_count=0;
-
- g_return_if_fail (cv != NULL);
- g_return_if_fail (E_IS_COMPLETION_VIEW (cv));
- g_return_if_fail (r < cv->choice_count);
-
- adj = e_scroll_frame_get_vadjustment (E_SCROLL_FRAME (cv->table));
-
- table = e_completion_view_table (cv);
-
- if (r < 0) {
- e_selection_model_clear (E_SELECTION_MODEL(table->selection));
-
- /* Move back to the top when we clear the selection */
- gtk_adjustment_set_value (adj, adj->lower);
- return;
- }
-
- e_table_set_cursor_row (table, r);
-
- /* OK, now the tricky bit. We try to insure that this row is
- visible. */
-
- /* If we are selecting the first or last row, then it is easy. We just
- cram the vadjustment all the way up/down. */
- if (r == 0) {
- gtk_adjustment_set_value (adj, adj->lower);
- return;
- } else if (r == cv->choice_count - 1) {
- gtk_adjustment_set_value (adj, adj->upper - adj->page_size);
- return;
- }
-
- fracline = ((adj->upper - adj->lower - adj->page_size) / cv->choice_count) / 4;
-
- while (iteration_count < 100) {
- x = GTK_LAYOUT(table->table_canvas)->hadjustment->value;
- y1 = GTK_LAYOUT(table->table_canvas)->vadjustment->value;
-
- y2 = y1 + cv->table->allocation.height;
-
- e_table_group_compute_location (e_completion_view_table (cv)->group, &x, &y1, &r1, &c);
- e_table_group_compute_location (e_completion_view_table (cv)->group, &x, &y2, &r2, &c);
-
- if (r <= r1) {
- gtk_adjustment_set_value (adj, adj->value - fracline);
- } else if (r >= r2) {
- gtk_adjustment_set_value (adj, adj->value + fracline);
- } else
- return;
-
- ++iteration_count;
- }
-
- g_assert_not_reached ();
-}
-
-static void
-e_completion_view_select (ECompletionView *cv, gint r)
-{
- const gchar *sel = (const gchar *) g_list_nth_data (cv->choices, r);
- gpointer extra = e_completion_find_extra_data (cv->completion, sel);
-
- cv->selection = r;
- e_completion_view_set_cursor_row (cv, r);
- gtk_signal_emit (GTK_OBJECT (cv), e_completion_view_signals[E_COMPLETION_VIEW_ACTIVATE], sel, extra);
-}
-
-static gint
-e_completion_view_key_press_handler (GtkWidget *w, GdkEventKey *key_event, gpointer user_data)
-{
- ECompletionView *cv = E_COMPLETION_VIEW (user_data);
- gint dir = 0;
- gboolean key_handled = TRUE;
-
- /* Start up a completion.*/
- if (cv->complete_key && key_event->keyval == cv->complete_key && !cv->editable) {
- gtk_signal_emit (GTK_OBJECT (cv), e_completion_view_signals[E_COMPLETION_VIEW_BROWSE], NULL);
- goto stop_emission;
- }
-
- /* Stop our completion. */
- if (cv->uncomplete_key && key_event->keyval == cv->uncomplete_key && cv->editable && cv->selection < 0) {
- e_completion_view_set_cursor_row (cv, -1);
- gtk_signal_emit (GTK_OBJECT (cv), e_completion_view_signals[E_COMPLETION_VIEW_UNBROWSE]);
- goto stop_emission;
- }
-
- if (!cv->editable)
- return FALSE;
-
- switch (key_event->keyval) {
- case GDK_Down:
- case GDK_KP_Down:
- dir = 1;
- break;
-
- case GDK_Up:
- case GDK_KP_Up:
- dir = -1;
- break;
-
- case GDK_Tab:
- /* Unbrowse, unhandled. */
- cv->selection = -1;
- dir = 0;
- key_handled = FALSE;
- break;
-
- case GDK_Return:
- case GDK_KP_Enter:
- case GDK_space:
- case GDK_KP_Space:
- /* Only handle these key presses if we have an active selection;
- otherwise, pass them on. */
- if (cv->selection >= 0) {
- e_completion_view_select (cv, cv->selection);
- goto stop_emission;
- }
- return FALSE;
-
- case GDK_Escape:
- /* Unbrowse hack */
- cv->selection = -1;
- dir = 0;
- break;
-
- default:
- return FALSE;
- }
-
- cv->selection += dir;
-
- if (cv->selection >= cv->choice_count) {
- cv->selection = cv->choice_count - 1;
- /* Don't re-emit the browse signal */
- goto stop_emission;
- }
-
- e_completion_view_set_cursor_row (cv, cv->selection);
-
- if (cv->selection >= 0)
- gtk_signal_emit (GTK_OBJECT (cv), e_completion_view_signals[E_COMPLETION_VIEW_BROWSE],
- g_list_nth_data (cv->choices, cv->selection));
- else
- gtk_signal_emit (GTK_OBJECT (cv), e_completion_view_signals[E_COMPLETION_VIEW_UNBROWSE]);
-
- stop_emission:
-
- if (key_handled)
- gtk_signal_emit_stop_by_name (GTK_OBJECT (w), "key_press_event");
-
- return key_handled;
-}
-
-static void
-begin_completion_cb (ECompletion *completion, const gchar *txt, gint pos, gint limit, gpointer user_data)
-{
- ECompletionView *cv = E_COMPLETION_VIEW (user_data);
-
- e_completion_view_clear_choices (cv);
- cv->have_all_choices = FALSE;
-
- e_table_model_changed (cv->model);
-}
-
-static void
-restart_completion_cb (ECompletion *completion, gpointer user_data)
-{
- /* For now, handle restarts like the beginning of a new completion. */
- begin_completion_cb (completion, NULL, 0, 0, user_data);
-}
-
-static void
-cancel_completion_cb (ECompletion *completion, gpointer user_data)
-{
- ECompletionView *cv = E_COMPLETION_VIEW (user_data);
-
- /* On a cancel, clear our choices and issue an "unbrowse" signal. */
- e_completion_view_clear_choices (cv);
- cv->have_all_choices = TRUE;
- e_completion_view_set_cursor_row (cv, -1);
- e_table_model_changed (cv->model);
-
- gtk_signal_emit (GTK_OBJECT (cv), e_completion_view_signals[E_COMPLETION_VIEW_UNBROWSE]);
-}
-
-static void
-completion_cb (ECompletion *completion, const gchar *text, gpointer extra_data, gpointer user_data)
-{
- ECompletionView *cv = E_COMPLETION_VIEW (user_data);
- gint r = cv->choice_count;
- gboolean first = (cv->choices == NULL);
-
- cv->choices = g_list_append (cv->choices, g_strdup (text));
- ++cv->choice_count;
-
- e_table_model_row_inserted (cv->model, r);
-
- if (first)
- gtk_signal_emit (GTK_OBJECT (cv), e_completion_view_signals[E_COMPLETION_VIEW_NONEMPTY]);
-
- gtk_signal_emit (GTK_OBJECT (cv), e_completion_view_signals[E_COMPLETION_VIEW_ADDED]);
-}
-
-static void
-end_completion_cb (ECompletion *completion, gpointer user_data)
-{
- ECompletionView *cv = E_COMPLETION_VIEW (user_data);
-
- /* Do a final refresh of the table. */
- e_table_model_changed (cv->model);
-
- cv->have_all_choices = TRUE;
- gtk_signal_emit (GTK_OBJECT (cv), e_completion_view_signals[E_COMPLETION_VIEW_FULL]);
-}
-
-/*** Table Callbacks ***/
-
-static char *simple_spec =
-"<ETableSpecification no-headers=\"true\" draw-grid=\"false\" cursor-mode=\"line\"> "
-" <ETableColumn model_col=\"0\" _title=\"Node\" expansion=\"1.0\" "
-" minimum_width=\"16\" resizable=\"true\" cell=\"string\" "
-" compare=\"string\"/> "
-" <ETableState> "
-" <column source=\"0\"/> "
-" <grouping></grouping> "
-" </ETableState> "
-"</ETableSpecification>";
-
-static gint
-table_col_count (ETableModel *etm, gpointer data)
-{
- return 1;
-}
-
-static gint
-table_row_count (ETableModel *etm, gpointer data)
-{
- ECompletionView *cv = E_COMPLETION_VIEW (data);
- return cv->choice_count;
-}
-
-static gboolean
-table_is_cell_editable (ETableModel *etm, gint c, gint r, gpointer data)
-{
- return FALSE;
-}
-
-static gpointer
-table_value_at (ETableModel *etm, gint c, gint r, gpointer data)
-{
- ECompletionView *cv = E_COMPLETION_VIEW (data);
- gpointer p;
-
- p = g_list_nth_data (cv->choices, r);
-
- return p;
-}
-
-static gchar *
-table_value_to_string (ETableModel *em, gint col, gconstpointer val, gpointer data)
-{
- return (gchar *) val;
-}
-
-static void
-table_click_cb (ETable *et, gint r, gint c, GdkEvent *ev, gpointer data)
-{
- ECompletionView *cv = E_COMPLETION_VIEW (data);
-
- e_completion_view_select (cv, r);
-}
-
-void
-e_completion_view_construct (ECompletionView *cv, ECompletion *completion)
-{
- GtkWidget *frame;
-
- g_return_if_fail (cv != NULL);
- g_return_if_fail (E_IS_COMPLETION_VIEW (cv));
- g_return_if_fail (completion != NULL);
- g_return_if_fail (E_IS_COMPLETION (completion));
-
- /* Make sure we don't call construct twice. */
- g_return_if_fail (cv->completion == NULL);
-
- GTK_WIDGET_SET_FLAGS (GTK_WIDGET (cv), GTK_CAN_FOCUS);
-
- cv->completion = completion;
- gtk_object_ref (GTK_OBJECT (completion));
-
- cv->begin_signal_id = gtk_signal_connect (GTK_OBJECT (completion),
- "begin_completion",
- GTK_SIGNAL_FUNC (begin_completion_cb),
- cv);
- cv->comp_signal_id = gtk_signal_connect (GTK_OBJECT (completion),
- "completion",
- GTK_SIGNAL_FUNC (completion_cb),
- cv);
- cv->restart_signal_id = gtk_signal_connect (GTK_OBJECT (completion),
- "restart_completion",
- GTK_SIGNAL_FUNC (restart_completion_cb),
- cv);
- cv->cancel_signal_id = gtk_signal_connect (GTK_OBJECT (completion),
- "cancel_completion",
- GTK_SIGNAL_FUNC (cancel_completion_cb),
- cv);
- cv->end_signal_id = gtk_signal_connect (GTK_OBJECT (completion),
- "end_completion",
- GTK_SIGNAL_FUNC (end_completion_cb),
- cv);
-
- cv->model = e_table_simple_new (table_col_count,
- table_row_count,
- table_value_at,
- NULL,
- table_is_cell_editable,
- NULL, NULL, NULL, NULL,
- table_value_to_string,
- cv);
-
- cv->table = e_table_scrolled_new (cv->model, NULL, simple_spec, NULL);
-
- e_scroll_frame_set_policy (E_SCROLL_FRAME (cv->table), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
-
- frame = gtk_frame_new (NULL);
-
- gtk_container_add (GTK_CONTAINER (cv), frame);
- gtk_container_add (GTK_CONTAINER (frame), cv->table);
- gtk_widget_show_all (frame);
-
- gtk_signal_connect (GTK_OBJECT (e_completion_view_table (cv)),
- "click",
- GTK_SIGNAL_FUNC (table_click_cb),
- cv);
-
- cv->selection = -1;
-}
-
-GtkWidget *
-e_completion_view_new (ECompletion *completion)
-{
- gpointer p;
-
- g_return_val_if_fail (completion != NULL, NULL);
- g_return_val_if_fail (E_IS_COMPLETION (completion), NULL);
-
- p = gtk_type_new (e_completion_view_get_type ());
-
- e_completion_view_construct (E_COMPLETION_VIEW (p), completion);
-
- return GTK_WIDGET (p);
-}
-
-void
-e_completion_view_connect_keys (ECompletionView *cv, GtkWidget *w)
-{
- g_return_if_fail (cv != NULL);
- g_return_if_fail (E_IS_COMPLETION_VIEW (cv));
- g_return_if_fail (w == NULL || GTK_IS_WIDGET (w));
-
- if (cv->key_widget) {
- gtk_signal_disconnect (GTK_OBJECT (cv->key_widget), cv->key_signal_id);
- gtk_object_unref (GTK_OBJECT (cv->key_widget));
- }
-
- if (w) {
- cv->key_widget = w;
- gtk_object_ref (GTK_OBJECT (w));
-
- cv->key_signal_id = gtk_signal_connect (GTK_OBJECT (w),
- "key_press_event",
- GTK_SIGNAL_FUNC (e_completion_view_key_press_handler),
- cv);
- } else {
- cv->key_widget = NULL;
- cv->key_signal_id = 0;
- }
-}
-
-void
-e_completion_view_set_complete_key (ECompletionView *cv, gint keyval)
-{
- g_return_if_fail (cv != NULL);
- g_return_if_fail (E_IS_COMPLETION_VIEW (cv));
-
- cv->complete_key = keyval;
-}
-
-void
-e_completion_view_set_uncomplete_key (ECompletionView *cv, gint keyval)
-{
- g_return_if_fail (cv != NULL);
- g_return_if_fail (E_IS_COMPLETION_VIEW (cv));
-
- cv->uncomplete_key = keyval;
-}
-
-void
-e_completion_view_set_width (ECompletionView *cv, gint width)
-{
- GtkWidget *w;
- gint y, r, dummy, line_height;
- double drop_room, lines;
-
- g_return_if_fail (cv != NULL);
- g_return_if_fail (E_IS_COMPLETION_VIEW (cv));
- g_return_if_fail (width > 0);
-
- w = GTK_WIDGET (cv);
-
- if (! GTK_WIDGET_REALIZED (w)) {
- gtk_widget_set_usize (w, width, -1);
- return;
- }
-
- /* A Horrible Hack(tm) to figure out the height of a single table row */
-
- for (line_height=5, r=0; r == 0 && line_height < 1000; line_height += 2) {
- dummy = 0;
- e_table_group_compute_location (e_completion_view_table (cv)->group,
- &dummy, &line_height, &r, &dummy);
- }
-
- if (line_height >= 1000) {
- /* Something went wrong, so we make a (possibly very lame) guess */
- line_height = 30;
- }
-
-
- gdk_window_get_origin (w->window, NULL, &y);
- y += w->allocation.y;
-
- lines = 5; /* default maximum */
- lines = MIN (lines, cv->choice_count);
-
- drop_room = (gdk_screen_height () - y) / (double)line_height;
- drop_room = MAX (drop_room, 1);
-
- lines = MIN (lines, drop_room);
-
- /* We reduce the total height by a bit; in practice, this seems to work out well. */
- gtk_widget_set_usize (w, width, (gint) floor (line_height * lines * 0.97));
-}
-
-void
-e_completion_view_set_editable (ECompletionView *cv, gboolean x)
-{
- g_return_if_fail (cv != NULL);
- g_return_if_fail (E_IS_COMPLETION_VIEW (cv));
-
- if (x == cv->editable)
- return;
-
- cv->editable = x;
- cv->selection = -1;
- e_completion_view_set_cursor_row (cv, -1);
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-03 10:01:30 +0800