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-rw-r--r--kalarm/lib/label.cpp118
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diff --git a/kalarm/lib/label.cpp b/kalarm/lib/label.cpp
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+/*
+ * label.cpp - label with radiobutton buddy option
+ * Program: kalarm
+ * Copyright (C) 2004 by David Jarvie <software@astrojar.org.uk>
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "kalarm.h"
+#include <qradiobutton.h>
+#include "label.moc"
+
+
+Label::Label(QWidget* parent, const char* name, WFlags f)
+ : QLabel(parent, name, f),
+ mRadioButton(0),
+ mFocusWidget(0)
+{ }
+
+Label::Label(const QString& text, QWidget* parent, const char* name, WFlags f)
+ : QLabel(text, parent, name, f),
+ mRadioButton(0),
+ mFocusWidget(0)
+{ }
+
+Label::Label(QWidget* buddy, const QString& text, QWidget* parent, const char* name, WFlags f)
+ : QLabel(buddy, text, parent, name, f),
+ mRadioButton(0),
+ mFocusWidget(0)
+{ }
+
+/******************************************************************************
+* Set a buddy widget.
+* If it (or its focus proxy) is a radio button, create a focus widget.
+* When the accelerator key is pressed, the focus widget then receives focus.
+* That event triggers the selection of the radio button.
+*/
+void Label::setBuddy(QWidget* bud)
+{
+ if (mRadioButton)
+ disconnect(mRadioButton, SIGNAL(destroyed()), this, SLOT(buddyDead()));
+ QWidget* w = bud;
+ if (w)
+ {
+ while (w->focusProxy())
+ w = w->focusProxy();
+ if (!w->inherits("QRadioButton"))
+ w = 0;
+ }
+ if (!w)
+ {
+ // The buddy widget isn't a radio button
+ QLabel::setBuddy(bud);
+ delete mFocusWidget;
+ mFocusWidget = 0;
+ mRadioButton = 0;
+ }
+ else
+ {
+ // The buddy widget is a radio button, so set a different buddy
+ if (!mFocusWidget)
+ mFocusWidget = new LabelFocusWidget(this);
+ QLabel::setBuddy(mFocusWidget);
+ mRadioButton = (QRadioButton*)bud;
+ connect(mRadioButton, SIGNAL(destroyed()), this, SLOT(buddyDead()));
+ }
+}
+
+void Label::buddyDead()
+{
+ delete mFocusWidget;
+ mFocusWidget = 0;
+ mRadioButton = 0;
+}
+
+/******************************************************************************
+* Called when focus is transferred to the label's special focus widget.
+* Transfer focus to the radio button and select it.
+*/
+void Label::activated()
+{
+ if (mFocusWidget && mRadioButton)
+ {
+ mRadioButton->setFocus();
+ mRadioButton->setChecked(true);
+ }
+}
+
+
+/*=============================================================================
+* Class: LabelFocusWidget
+=============================================================================*/
+
+LabelFocusWidget::LabelFocusWidget(QWidget* parent, const char* name)
+ : QWidget(parent, name)
+{
+ setFocusPolicy(ClickFocus);
+ setFixedSize(QSize(1,1));
+}
+
+void LabelFocusWidget::focusInEvent(QFocusEvent*)
+{
+ Label* parent = (Label*)parentWidget();
+ parent->activated();
+
+}