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authorMichael Biebl <biebl@debian.org>2014-07-06 02:16:10 +0200
committerMichael Biebl <biebl@debian.org>2014-07-06 02:16:10 +0200
commit33491bc4279481db8ae47213e34a6d695a0e8830 (patch)
tree097d2b0fdff3fae6885381ae5e57a182cd8cbbba /tui/newt/nmt-newt-button.c
parent59c3714a494c3b3765657c0551ad82842d98a7d2 (diff)
Imported Upstream version 0.9.10.0 upstream/0.9.10.0
Diffstat (limited to 'tui/newt/nmt-newt-button.c')
-rw-r--r--tui/newt/nmt-newt-button.c260
1 files changed, 260 insertions, 0 deletions
diff --git a/tui/newt/nmt-newt-button.c b/tui/newt/nmt-newt-button.c
new file mode 100644
index 00000000..97ad50ca
--- /dev/null
+++ b/tui/newt/nmt-newt-button.c
@@ -0,0 +1,260 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/*
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2013 Red Hat, Inc.
+ */
+
+/**
+ * SECTION:nmt-newt-button
+ * @short_description: Push buttons
+ *
+ * #NmtNewtButton implements a button widget.
+ */
+
+#include "config.h"
+
+#include "nmt-newt-button.h"
+#include "nmt-newt-utils.h"
+
+G_DEFINE_TYPE (NmtNewtButton, nmt_newt_button, NMT_TYPE_NEWT_COMPONENT)
+
+#define NMT_NEWT_BUTTON_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NMT_TYPE_NEWT_BUTTON, NmtNewtButtonPrivate))
+
+typedef struct {
+	char *label;
+} NmtNewtButtonPrivate;
+
+enum {
+	PROP_0,
+	PROP_LABEL,
+
+	LAST_PROP
+};
+
+enum {
+	CLICKED,
+
+	LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+/**
+ * nmt_newt_button_new:
+ * @label: the (initial) button label
+ *
+ * Creates a new button.
+ *
+ * Returns: a new #NmtNewtButton
+ */
+NmtNewtWidget *
+nmt_newt_button_new (const char *label)
+{
+	return g_object_new (NMT_TYPE_NEWT_BUTTON,
+	                     "label", label,
+	                     NULL);
+}
+
+/**
+ * nmt_newt_button_set_label:
+ * @button: an #NmtNewtButton
+ * @label: the new label
+ *
+ * Updates @button's label.
+ */
+void
+nmt_newt_button_set_label (NmtNewtButton *button,
+                           const char    *label)
+{
+	NmtNewtButtonPrivate *priv = NMT_NEWT_BUTTON_GET_PRIVATE (button);
+
+	if (!g_strcmp0 (priv->label, label))
+		return;
+
+	g_free (priv->label);
+	priv->label = g_strdup (label);
+	nmt_newt_widget_needs_rebuild (NMT_NEWT_WIDGET (button));
+}
+
+/**
+ * nmt_newt_button_get_label:
+ * @button: an #NmtNewtButton
+ *
+ * Gets @button's label.
+ *
+ * Returns: @button's label.
+ */
+const char *
+nmt_newt_button_get_label (NmtNewtButton *button)
+{
+	NmtNewtButtonPrivate *priv = NMT_NEWT_BUTTON_GET_PRIVATE (button);
+
+	return priv->label;
+}
+
+static void
+nmt_newt_button_init (NmtNewtButton *button)
+{
+}
+
+static void
+nmt_newt_button_finalize (GObject *object)
+{
+	NmtNewtButtonPrivate *priv = NMT_NEWT_BUTTON_GET_PRIVATE (object);
+
+	g_free (priv->label);
+
+	G_OBJECT_CLASS (nmt_newt_button_parent_class)->finalize (object);
+}
+
+static newtComponent
+nmt_newt_button_build_component (NmtNewtComponent *component,
+                                 gboolean          sensitive)
+{
+	NmtNewtButtonPrivate *priv = NMT_NEWT_BUTTON_GET_PRIVATE (component);
+	newtComponent co;
+	char *label = NULL, *label_lc;
+
+	if (sensitive) {
+		label_lc = nmt_newt_locale_from_utf8 (priv->label);
+		co = newtCompactButton (-1, -1, label_lc);
+		g_free (label_lc);
+	} else {
+		label = g_strdup_printf (" <%s>", priv->label);
+		label_lc = nmt_newt_locale_from_utf8 (label);
+		co = newtLabel (-1, -1, label_lc);
+		g_free (label_lc);
+		newtLabelSetColors (co, NMT_NEWT_COLORSET_DISABLED_BUTTON);
+	}
+
+	return co;
+}
+
+static void
+nmt_newt_button_size_request (NmtNewtWidget *widget,
+                              int           *width,
+                              int           *height)
+{
+	NMT_NEWT_WIDGET_CLASS (nmt_newt_button_parent_class)->size_request (widget, width, height);
+
+	/* remove the automatically-added left padding */
+	(*width)--;
+}
+
+static void
+nmt_newt_button_size_allocate (NmtNewtWidget *widget,
+                               int            x,
+                               int            y,
+                               int            width,
+                               int            height)
+{
+	/* account for the automatically-added left padding */
+	x--;
+	width++;
+
+	NMT_NEWT_WIDGET_CLASS (nmt_newt_button_parent_class)->size_allocate (widget, x, y, width, height);
+}
+
+static void
+nmt_newt_button_activated (NmtNewtWidget *widget)
+{
+	g_signal_emit (widget, signals[CLICKED], 0);
+
+	NMT_NEWT_WIDGET_CLASS (nmt_newt_button_parent_class)->activated (widget);
+}
+
+static void
+nmt_newt_button_set_property (GObject      *object,
+                              guint         prop_id,
+                              const GValue *value,
+                              GParamSpec   *pspec)
+{
+	switch (prop_id) {
+	case PROP_LABEL:
+		nmt_newt_button_set_label (NMT_NEWT_BUTTON (object),
+		                           g_value_get_string (value));
+		break;
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+		break;
+	}
+}
+
+static void
+nmt_newt_button_get_property (GObject    *object,
+                             guint       prop_id,
+                             GValue     *value,
+                             GParamSpec *pspec)
+{
+	NmtNewtButtonPrivate *priv = NMT_NEWT_BUTTON_GET_PRIVATE (object);
+
+	switch (prop_id) {
+	case PROP_LABEL:
+		g_value_set_string (value, priv->label);
+		break;
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+		break;
+	}
+}
+
+static void
+nmt_newt_button_class_init (NmtNewtButtonClass *button_class)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (button_class);
+	NmtNewtComponentClass *component_class = NMT_NEWT_COMPONENT_CLASS (button_class);
+	NmtNewtWidgetClass *widget_class = NMT_NEWT_WIDGET_CLASS (button_class);
+
+	g_type_class_add_private (button_class, sizeof (NmtNewtButtonPrivate));
+
+	/* virtual methods */
+	object_class->set_property = nmt_newt_button_set_property;
+	object_class->get_property = nmt_newt_button_get_property;
+	object_class->finalize     = nmt_newt_button_finalize;
+
+	widget_class->size_request  = nmt_newt_button_size_request;
+	widget_class->size_allocate = nmt_newt_button_size_allocate;
+	widget_class->activated     = nmt_newt_button_activated;
+
+	component_class->build_component = nmt_newt_button_build_component;
+
+	/* signals */
+
+	/**
+	 * NmtNewtButton::clicked:
+	 * @button: the #NmtNewtButton
+	 *
+	 * Emitted when the button is clicked.
+	 */
+	signals[CLICKED] =
+		g_signal_new ("clicked",
+		              G_OBJECT_CLASS_TYPE (object_class),
+		              G_SIGNAL_RUN_FIRST,
+		              0, NULL, NULL, NULL,
+		              G_TYPE_NONE, 0);
+
+	/* properties */
+
+	/**
+	 * NmtNewtButton:label:
+	 *
+	 * The button's label
+	 */
+	g_object_class_install_property (object_class, PROP_LABEL,
+	                                 g_param_spec_string ("label", "", "",
+	                                                      NULL,
+	                                                      G_PARAM_READWRITE |
+	                                                      G_PARAM_STATIC_STRINGS));
+}