diff options
Diffstat (limited to 'logview/logview-findbar.c')
| -rw-r--r-- | logview/logview-findbar.c | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/logview/logview-findbar.c b/logview/logview-findbar.c new file mode 100644 index 00000000..bdbda89f --- /dev/null +++ b/logview/logview-findbar.c @@ -0,0 +1,348 @@ +/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */ +/* logview-findbar.c - find toolbar for logview + * + * Copyright (C) 2005 Vincent Noel <[email protected]> + * Copyright (C) 2008 Cosimo Cecchi <[email protected]> + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <gtk/gtk.h> +#include <glib/gi18n.h> +#include <gdk/gdkkeysyms.h> + +#include "logview-findbar.h" + +struct _LogviewFindbarPrivate { + GtkWidget *entry; + GtkWidget *message; + + GtkToolItem *clear_button; + GtkToolItem *back_button; + GtkToolItem *forward_button; + GtkToolItem *status_item; + GtkToolItem *separator; + + char *string; + + guint status_bold_id; +}; + +enum { + PREVIOUS, + NEXT, + CLOSE, + TEXT_CHANGED, + LAST_SIGNAL +}; + +static guint signals[LAST_SIGNAL] = { 0 }; + +G_DEFINE_TYPE (LogviewFindbar, logview_findbar, GTK_TYPE_TOOLBAR); + +#define GET_PRIVATE(o) \ + (G_TYPE_INSTANCE_GET_PRIVATE ((o), LOGVIEW_TYPE_FINDBAR, LogviewFindbarPrivate)) + +static void +back_button_clicked_cb (GtkToolButton *button, + gpointer user_data) +{ + LogviewFindbar *findbar = user_data; + + g_signal_emit (findbar, signals[PREVIOUS], 0); +} + +static void +forward_button_clicked_cb (GtkToolButton *button, + gpointer user_data) +{ + LogviewFindbar *findbar = user_data; + + g_signal_emit (findbar, signals[NEXT], 0); +} + +static void +clear_button_clicked_cb (GtkToolButton *button, + gpointer user_data) +{ + LogviewFindbar *findbar = user_data; + + logview_findbar_set_message (findbar, NULL); + gtk_entry_set_text (GTK_ENTRY (findbar->priv->entry), ""); +} + +static void +entry_activate_cb (GtkWidget *entry, + gpointer user_data) +{ + LogviewFindbar *findbar = user_data; + + g_signal_emit (findbar, signals[NEXT], 0); +} + +static void +entry_changed_cb (GtkEditable *editable, + gpointer user_data) +{ + LogviewFindbar *findbar = user_data; + const char *text; + + text = gtk_entry_get_text (GTK_ENTRY (editable)); + + if (g_strcmp0 (text, "") == 0) { + return; + } + + if (g_strcmp0 (findbar->priv->string, text) != 0) { + g_free (findbar->priv->string); + findbar->priv->string = g_strdup (text); + + g_signal_emit (findbar, signals[TEXT_CHANGED], 0); + } +} + +static gboolean +entry_key_press_event_cb (GtkWidget *entry, + GdkEventKey *event, + gpointer user_data) +{ + LogviewFindbar *findbar = user_data; + + if (event->keyval == GDK_Escape) { + g_signal_emit (findbar, signals[CLOSE], 0); + return TRUE; + } + + return FALSE; +} + +static gboolean +unbold_timeout_cb (gpointer user_data) +{ + LogviewFindbar *findbar = user_data; + PangoFontDescription *desc; + + desc = pango_font_description_new (); + gtk_widget_modify_font (findbar->priv->message, desc); + pango_font_description_free (desc); + + findbar->priv->status_bold_id = 0; + + return FALSE; +} + +static void +logview_findbar_init (LogviewFindbar *findbar) +{ + GtkWidget *label, *w, *box; + GtkToolbar *gtoolbar; + GtkToolItem *item; + LogviewFindbarPrivate *priv; + + priv = findbar->priv = GET_PRIVATE (findbar); + + gtoolbar = GTK_TOOLBAR (findbar); + + gtk_toolbar_set_style (gtoolbar, GTK_TOOLBAR_BOTH_HORIZ); + + priv->status_bold_id = 0; + + /* Find: |_______| */ + w = gtk_alignment_new (0.0, 0.5, 1.0, 1.0); + gtk_alignment_set_padding (GTK_ALIGNMENT (w), 0, 0, 2, 2); + + box = gtk_hbox_new (FALSE, 12); + gtk_container_add (GTK_CONTAINER (w), box); + + label = gtk_label_new_with_mnemonic (_("_Find:")); + gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0); + + priv->entry = gtk_entry_new (); + gtk_entry_set_width_chars (GTK_ENTRY (priv->entry), 32); + gtk_label_set_mnemonic_widget (GTK_LABEL (label), priv->entry); + gtk_box_pack_start (GTK_BOX (box), priv->entry, TRUE, TRUE, 0); + + item = gtk_tool_item_new (); + gtk_container_add (GTK_CONTAINER (item), w); + gtk_toolbar_insert (gtoolbar, item, -1); + gtk_widget_show_all (GTK_WIDGET (item)); + + /* "Previous" and "Next" buttons */ + w = gtk_arrow_new (GTK_ARROW_LEFT, GTK_SHADOW_NONE); + priv->back_button = gtk_tool_button_new (w, _("Find Previous")); + gtk_tool_item_set_is_important (priv->back_button, TRUE); + gtk_tool_item_set_tooltip_text (priv->back_button, + _("Find previous occurrence of the search string")); + gtk_toolbar_insert (gtoolbar, priv->back_button, -1); + gtk_widget_show_all (GTK_WIDGET (priv->back_button)); + + w = gtk_arrow_new (GTK_ARROW_RIGHT, GTK_SHADOW_NONE); + priv->forward_button = gtk_tool_button_new (w, _("Find Next")); + gtk_tool_item_set_is_important (priv->forward_button, TRUE); + gtk_tool_item_set_tooltip_text (priv->forward_button, + _("Find next occurrence of the search string")); + gtk_toolbar_insert (gtoolbar, priv->forward_button, -1); + gtk_widget_show_all (GTK_WIDGET (priv->forward_button)); + + /* clear button */ + priv->clear_button = gtk_tool_button_new_from_stock (GTK_STOCK_CLEAR); + gtk_tool_item_set_tooltip_text (priv->clear_button, + _("Clear the search string")); + gtk_toolbar_insert (gtoolbar, priv->clear_button, -1); + gtk_widget_show_all (GTK_WIDGET (priv->clear_button)); + + /* separator */ + priv->separator = gtk_separator_tool_item_new (); + gtk_toolbar_insert (gtoolbar, priv->separator, -1); + + /* message */ + priv->status_item = gtk_tool_item_new (); + gtk_tool_item_set_expand (priv->status_item, TRUE); + priv->message = gtk_label_new (""); + gtk_label_set_use_markup (GTK_LABEL (priv->message), TRUE); + gtk_misc_set_alignment (GTK_MISC (priv->message), 0.0, 0.5); + gtk_container_add (GTK_CONTAINER (priv->status_item), priv->message); + gtk_widget_show (priv->message); + gtk_toolbar_insert (gtoolbar, priv->status_item, -1); + + priv->string = NULL; + + /* signal handlers */ + g_signal_connect (priv->back_button, "clicked", + G_CALLBACK (back_button_clicked_cb), findbar); + g_signal_connect (priv->forward_button, "clicked", + G_CALLBACK (forward_button_clicked_cb), findbar); + g_signal_connect (priv->clear_button, "clicked", + G_CALLBACK (clear_button_clicked_cb), findbar); + g_signal_connect (priv->entry, "activate", + G_CALLBACK (entry_activate_cb), findbar); + g_signal_connect (priv->entry, "changed", + G_CALLBACK (entry_changed_cb), findbar); + g_signal_connect (priv->entry, "key-press-event", + G_CALLBACK (entry_key_press_event_cb), findbar); +} + +static void +do_grab_focus (GtkWidget *widget) +{ + LogviewFindbar *findbar = LOGVIEW_FINDBAR (widget); + + gtk_widget_grab_focus (findbar->priv->entry); +} + +static void +do_finalize (GObject *obj) +{ + LogviewFindbar *findbar = LOGVIEW_FINDBAR (obj); + + g_free (findbar->priv->string); + + G_OBJECT_CLASS (logview_findbar_parent_class)->finalize (obj); +} + +static void +logview_findbar_class_init (LogviewFindbarClass *klass) +{ + GObjectClass *oclass = G_OBJECT_CLASS (klass); + GtkWidgetClass *wclass = GTK_WIDGET_CLASS (klass); + + oclass->finalize = do_finalize; + + wclass->grab_focus = do_grab_focus; + + signals[PREVIOUS] = g_signal_new ("previous", + G_OBJECT_CLASS_TYPE (oclass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (LogviewFindbarClass, previous), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + signals[NEXT] = g_signal_new ("next", + G_OBJECT_CLASS_TYPE (oclass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (LogviewFindbarClass, next), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + signals[CLOSE] = g_signal_new ("close", + G_OBJECT_CLASS_TYPE (oclass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (LogviewFindbarClass, close), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + signals[TEXT_CHANGED] = g_signal_new ("text-changed", + G_OBJECT_CLASS_TYPE (oclass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (LogviewFindbarClass, text_changed), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + g_type_class_add_private (klass, sizeof (LogviewFindbarPrivate)); +} + +/* public methods */ + +GtkWidget * +logview_findbar_new (void) +{ + GtkWidget *widget; + widget = g_object_new (LOGVIEW_TYPE_FINDBAR, NULL); + return widget; +} + +void +logview_findbar_open (LogviewFindbar *findbar) +{ + g_assert (LOGVIEW_IS_FINDBAR (findbar)); + + gtk_widget_show (GTK_WIDGET (findbar)); + gtk_widget_grab_focus (GTK_WIDGET (findbar)); +} + +const char * +logview_findbar_get_text (LogviewFindbar *findbar) +{ + g_assert (LOGVIEW_IS_FINDBAR (findbar)); + + return findbar->priv->string; +} + +void +logview_findbar_set_message (LogviewFindbar *findbar, + const char *text) +{ + PangoFontDescription *desc; + + g_assert (LOGVIEW_IS_FINDBAR (findbar)); + + if (text) { + desc = pango_font_description_new (); + pango_font_description_set_weight (desc, PANGO_WEIGHT_BOLD); + gtk_widget_modify_font (findbar->priv->message, desc); + pango_font_description_free (desc); + + findbar->priv->status_bold_id = g_timeout_add (600, unbold_timeout_cb, findbar); + } + + gtk_label_set_text (GTK_LABEL (findbar->priv->message), + text != NULL ? text : ""); + g_object_set (findbar->priv->separator, "visible", text != NULL, NULL); + g_object_set (findbar->priv->status_item, "visible", text != NULL, NULL); +} |