445 lines
12 KiB
C
445 lines
12 KiB
C
/*
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* pluma-status-combo-box.c
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* This file is part of pluma
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*
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* Copyright (C) 2008 - Jesse van den Kieboom
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "pluma-status-combo-box.h"
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#define COMBO_BOX_TEXT_DATA "PlumaStatusComboBoxTextData"
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#define PLUMA_STATUS_COMBO_BOX_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE((object), PLUMA_TYPE_STATUS_COMBO_BOX, PlumaStatusComboBoxPrivate))
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struct _PlumaStatusComboBoxPrivate
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{
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GtkWidget *frame;
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GtkWidget *button;
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GtkWidget *hbox;
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GtkWidget *label;
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GtkWidget *item;
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GtkWidget *arrow;
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GtkWidget *menu;
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GtkWidget *current_item;
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};
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/* Signals */
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enum
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{
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CHANGED,
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NUM_SIGNALS
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};
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/* Properties */
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enum
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{
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PROP_0,
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PROP_LABEL
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};
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static guint signals[NUM_SIGNALS] = { 0 };
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G_DEFINE_TYPE(PlumaStatusComboBox, pluma_status_combo_box, GTK_TYPE_EVENT_BOX)
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static void
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pluma_status_combo_box_finalize (GObject *object)
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{
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G_OBJECT_CLASS (pluma_status_combo_box_parent_class)->finalize (object);
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}
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static void
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pluma_status_combo_box_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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PlumaStatusComboBox *obj = PLUMA_STATUS_COMBO_BOX (object);
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switch (prop_id)
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{
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case PROP_LABEL:
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g_value_set_string (value, pluma_status_combo_box_get_label (obj));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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pluma_status_combo_box_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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PlumaStatusComboBox *obj = PLUMA_STATUS_COMBO_BOX (object);
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switch (prop_id)
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{
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case PROP_LABEL:
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pluma_status_combo_box_set_label (obj, g_value_get_string (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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pluma_status_combo_box_changed (PlumaStatusComboBox *combo,
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GtkMenuItem *item)
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{
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const gchar *text;
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text = g_object_get_data (G_OBJECT (item), COMBO_BOX_TEXT_DATA);
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if (text != NULL)
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{
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gtk_label_set_markup (GTK_LABEL (combo->priv->item), text);
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combo->priv->current_item = GTK_WIDGET (item);
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}
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}
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static void
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pluma_status_combo_box_class_init (PlumaStatusComboBoxClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = pluma_status_combo_box_finalize;
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object_class->get_property = pluma_status_combo_box_get_property;
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object_class->set_property = pluma_status_combo_box_set_property;
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klass->changed = pluma_status_combo_box_changed;
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signals[CHANGED] =
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g_signal_new ("changed",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (PlumaStatusComboBoxClass,
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changed), NULL, NULL,
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g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1,
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GTK_TYPE_MENU_ITEM);
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g_object_class_install_property (object_class, PROP_LABEL,
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g_param_spec_string ("label",
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"LABEL",
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"The label",
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NULL,
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G_PARAM_READWRITE));
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/* Set up a style for the button to decrease spacing. */
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gtk_rc_parse_string (
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"style \"pluma-status-combo-button-style\"\n"
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"{\n"
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" GtkWidget::focus-padding = 0\n"
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" GtkWidget::focus-line-width = 0\n"
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" xthickness = 0\n"
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" ythickness = 0\n"
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"}\n"
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"widget \"*.pluma-status-combo-button\" style \"pluma-status-combo-button-style\"");
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g_type_class_add_private (object_class, sizeof(PlumaStatusComboBoxPrivate));
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}
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static void
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menu_deactivate (GtkMenu *menu,
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PlumaStatusComboBox *combo)
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{
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (combo->priv->button), FALSE);
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}
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static void
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menu_position_func (GtkMenu *menu,
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gint *x,
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gint *y,
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gboolean *push_in,
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PlumaStatusComboBox *combo)
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{
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GtkRequisition request;
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GtkAllocation allocation;
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*push_in = FALSE;
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gtk_widget_size_request (gtk_widget_get_toplevel (GTK_WIDGET (menu)), &request);
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/* get the origin... */
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gdk_window_get_origin (gtk_widget_get_window (GTK_WIDGET (combo)), x, y);
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gtk_widget_get_allocation (GTK_WIDGET (combo), &allocation);
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/* make the menu as wide as the widget */
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if (request.width < allocation.width)
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{
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gtk_widget_set_size_request (GTK_WIDGET (menu), allocation.width, -1);
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}
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/* position it above the widget */
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*y -= request.height;
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}
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static void
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button_press_event (GtkWidget *widget,
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GdkEventButton *event,
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PlumaStatusComboBox *combo)
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{
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GtkRequisition request;
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GtkAllocation allocation;
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gint max_height;
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gtk_widget_size_request (combo->priv->menu, &request);
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gtk_widget_get_allocation (GTK_WIDGET (combo), &allocation);
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/* do something relative to our own height here, maybe we can do better */
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max_height = allocation.height * 20;
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if (request.height > max_height)
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{
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gtk_widget_set_size_request (combo->priv->menu, -1, max_height);
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gtk_widget_set_size_request (gtk_widget_get_toplevel (combo->priv->menu), -1, max_height);
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}
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gtk_menu_popup (GTK_MENU (combo->priv->menu),
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NULL,
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NULL,
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(GtkMenuPositionFunc)menu_position_func,
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combo,
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event->button,
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event->time);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (combo->priv->button), TRUE);
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if (combo->priv->current_item)
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{
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gtk_menu_shell_select_item (GTK_MENU_SHELL (combo->priv->menu),
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combo->priv->current_item);
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}
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}
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static void
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set_shadow_type (PlumaStatusComboBox *combo)
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{
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GtkShadowType shadow_type;
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GtkWidget *statusbar;
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/* This is a hack needed to use the shadow type of a statusbar */
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statusbar = gtk_statusbar_new ();
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gtk_widget_ensure_style (statusbar);
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gtk_widget_style_get (statusbar, "shadow-type", &shadow_type, NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (combo->priv->frame), shadow_type);
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gtk_widget_destroy (statusbar);
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}
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static void
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pluma_status_combo_box_init (PlumaStatusComboBox *self)
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{
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self->priv = PLUMA_STATUS_COMBO_BOX_GET_PRIVATE (self);
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gtk_event_box_set_visible_window (GTK_EVENT_BOX (self), TRUE);
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self->priv->frame = gtk_frame_new (NULL);
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gtk_widget_show (self->priv->frame);
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self->priv->button = gtk_toggle_button_new ();
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gtk_widget_set_name (self->priv->button, "pluma-status-combo-button");
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gtk_button_set_relief (GTK_BUTTON (self->priv->button), GTK_RELIEF_NONE);
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gtk_widget_show (self->priv->button);
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set_shadow_type (self);
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self->priv->hbox = gtk_hbox_new (FALSE, 3);
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gtk_widget_show (self->priv->hbox);
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gtk_container_add (GTK_CONTAINER (self), self->priv->frame);
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gtk_container_add (GTK_CONTAINER (self->priv->frame), self->priv->button);
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gtk_container_add (GTK_CONTAINER (self->priv->button), self->priv->hbox);
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self->priv->label = gtk_label_new ("");
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gtk_widget_show (self->priv->label);
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gtk_label_set_single_line_mode (GTK_LABEL (self->priv->label), TRUE);
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gtk_misc_set_alignment (GTK_MISC (self->priv->label), 0.0, 0.5);
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gtk_box_pack_start (GTK_BOX (self->priv->hbox), self->priv->label, FALSE, TRUE, 0);
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self->priv->item = gtk_label_new ("");
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gtk_widget_show (self->priv->item);
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gtk_label_set_single_line_mode (GTK_LABEL (self->priv->item), TRUE);
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gtk_misc_set_alignment (GTK_MISC (self->priv->item), 0, 0.5);
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gtk_box_pack_start (GTK_BOX (self->priv->hbox), self->priv->item, TRUE, TRUE, 0);
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self->priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
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gtk_widget_show (self->priv->arrow);
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gtk_misc_set_alignment (GTK_MISC (self->priv->arrow), 0.5, 0.5);
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gtk_box_pack_start (GTK_BOX (self->priv->hbox), self->priv->arrow, FALSE, TRUE, 0);
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self->priv->menu = gtk_menu_new ();
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g_object_ref_sink (self->priv->menu);
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g_signal_connect (self->priv->button,
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"button-press-event",
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G_CALLBACK (button_press_event),
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self);
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g_signal_connect (self->priv->menu,
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"deactivate",
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G_CALLBACK (menu_deactivate),
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self);
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}
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/* public functions */
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/**
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* pluma_status_combo_box_new:
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* @label: (allow-none):
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*/
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GtkWidget *
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pluma_status_combo_box_new (const gchar *label)
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{
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return g_object_new (PLUMA_TYPE_STATUS_COMBO_BOX, "label", label, NULL);
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}
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/**
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* pluma_status_combo_box_set_label:
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* @combo:
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* @label: (allow-none):
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*/
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void
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pluma_status_combo_box_set_label (PlumaStatusComboBox *combo,
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const gchar *label)
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{
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gchar *text;
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g_return_if_fail (PLUMA_IS_STATUS_COMBO_BOX (combo));
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text = g_strconcat (" ", label, ": ", NULL);
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gtk_label_set_markup (GTK_LABEL (combo->priv->label), text);
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g_free (text);
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}
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const gchar *
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pluma_status_combo_box_get_label (PlumaStatusComboBox *combo)
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{
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g_return_val_if_fail (PLUMA_IS_STATUS_COMBO_BOX (combo), NULL);
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return gtk_label_get_label (GTK_LABEL (combo->priv->label));
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}
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static void
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item_activated (GtkMenuItem *item,
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PlumaStatusComboBox *combo)
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{
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pluma_status_combo_box_set_item (combo, item);
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}
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/**
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* pluma_status_combo_box_add_item:
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* @combo:
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* @item:
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* @text: (allow-none):
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*/
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void
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pluma_status_combo_box_add_item (PlumaStatusComboBox *combo,
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GtkMenuItem *item,
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const gchar *text)
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{
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g_return_if_fail (PLUMA_IS_STATUS_COMBO_BOX (combo));
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g_return_if_fail (GTK_IS_MENU_ITEM (item));
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gtk_menu_shell_append (GTK_MENU_SHELL (combo->priv->menu), GTK_WIDGET (item));
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pluma_status_combo_box_set_item_text (combo, item, text);
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g_signal_connect (item, "activate", G_CALLBACK (item_activated), combo);
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}
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void
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pluma_status_combo_box_remove_item (PlumaStatusComboBox *combo,
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GtkMenuItem *item)
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{
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g_return_if_fail (PLUMA_IS_STATUS_COMBO_BOX (combo));
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g_return_if_fail (GTK_IS_MENU_ITEM (item));
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gtk_container_remove (GTK_CONTAINER (combo->priv->menu),
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GTK_WIDGET (item));
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}
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GList *
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pluma_status_combo_box_get_items (PlumaStatusComboBox *combo)
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{
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g_return_val_if_fail (PLUMA_IS_STATUS_COMBO_BOX (combo), NULL);
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return gtk_container_get_children (GTK_CONTAINER (combo->priv->menu));
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}
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const gchar *
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pluma_status_combo_box_get_item_text (PlumaStatusComboBox *combo,
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GtkMenuItem *item)
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{
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const gchar *ret = NULL;
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g_return_val_if_fail (PLUMA_IS_STATUS_COMBO_BOX (combo), NULL);
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g_return_val_if_fail (GTK_IS_MENU_ITEM (item), NULL);
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ret = g_object_get_data (G_OBJECT (item), COMBO_BOX_TEXT_DATA);
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return ret;
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}
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/**
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* pluma_status_combo_box_set_item_text:
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* @combo:
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* @item:
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* @text: (allow-none):
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*/
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void
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pluma_status_combo_box_set_item_text (PlumaStatusComboBox *combo,
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GtkMenuItem *item,
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const gchar *text)
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{
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g_return_if_fail (PLUMA_IS_STATUS_COMBO_BOX (combo));
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g_return_if_fail (GTK_IS_MENU_ITEM (item));
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g_object_set_data_full (G_OBJECT (item),
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COMBO_BOX_TEXT_DATA,
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g_strdup (text),
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(GDestroyNotify)g_free);
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}
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void
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pluma_status_combo_box_set_item (PlumaStatusComboBox *combo,
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GtkMenuItem *item)
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{
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g_return_if_fail (PLUMA_IS_STATUS_COMBO_BOX (combo));
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g_return_if_fail (GTK_IS_MENU_ITEM (item));
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g_signal_emit (combo, signals[CHANGED], 0, item, NULL);
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}
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GtkLabel *
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pluma_status_combo_box_get_item_label (PlumaStatusComboBox *combo)
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{
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g_return_val_if_fail (PLUMA_IS_STATUS_COMBO_BOX (combo), NULL);
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return GTK_LABEL (combo->priv->item);
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}
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