summaryrefslogtreecommitdiffstats
path: root/kalarm/lib/checkbox.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'kalarm/lib/checkbox.cpp')
-rw-r--r--kalarm/lib/checkbox.cpp133
1 files changed, 133 insertions, 0 deletions
diff --git a/kalarm/lib/checkbox.cpp b/kalarm/lib/checkbox.cpp
new file mode 100644
index 000000000..c600a4950
--- /dev/null
+++ b/kalarm/lib/checkbox.cpp
@@ -0,0 +1,133 @@
+/*
+ * checkbox.cpp - check box with read-only option
+ * Program: kalarm
+ * Copyright (c) 2002, 2003 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 "checkbox.moc"
+
+
+CheckBox::CheckBox(QWidget* parent, const char* name)
+ : QCheckBox(parent, name),
+ mFocusPolicy(focusPolicy()),
+ mFocusWidget(0),
+ mReadOnly(false)
+{ }
+
+CheckBox::CheckBox(const QString& text, QWidget* parent, const char* name)
+ : QCheckBox(text, parent, name),
+ mFocusPolicy(focusPolicy()),
+ mFocusWidget(0),
+ mReadOnly(false)
+{ }
+
+/******************************************************************************
+* Set the read-only status. If read-only, the checkbox can be toggled by the
+* application, but not by the user.
+*/
+void CheckBox::setReadOnly(bool ro)
+{
+ if ((int)ro != (int)mReadOnly)
+ {
+ mReadOnly = ro;
+ setFocusPolicy(ro ? QWidget::NoFocus : mFocusPolicy);
+ if (ro)
+ clearFocus();
+ }
+}
+
+/******************************************************************************
+* Specify a widget to receive focus when the checkbox is clicked on.
+*/
+void CheckBox::setFocusWidget(QWidget* w, bool enable)
+{
+ mFocusWidget = w;
+ mFocusWidgetEnable = enable;
+ if (w)
+ connect(this, SIGNAL(clicked()), SLOT(slotClicked()));
+ else
+ disconnect(this, SIGNAL(clicked()), this, SLOT(slotClicked()));
+}
+
+/******************************************************************************
+* Called when the checkbox is clicked.
+* If it is now checked, focus is transferred to any specified focus widget.
+*/
+void CheckBox::slotClicked()
+{
+ if (mFocusWidget && isChecked())
+ {
+ if (mFocusWidgetEnable)
+ mFocusWidget->setEnabled(true);
+ mFocusWidget->setFocus();
+ }
+}
+
+/******************************************************************************
+* Event handlers to intercept events if in read-only mode.
+* Any events which could change the checkbox state are discarded.
+*/
+void CheckBox::mousePressEvent(QMouseEvent* e)
+{
+ if (mReadOnly)
+ {
+ // Swallow up the event if it's the left button
+ if (e->button() == Qt::LeftButton)
+ return;
+ }
+ QCheckBox::mousePressEvent(e);
+}
+
+void CheckBox::mouseReleaseEvent(QMouseEvent* e)
+{
+ if (mReadOnly)
+ {
+ // Swallow up the event if it's the left button
+ if (e->button() == Qt::LeftButton)
+ return;
+ }
+ QCheckBox::mouseReleaseEvent(e);
+}
+
+void CheckBox::mouseMoveEvent(QMouseEvent* e)
+{
+ if (!mReadOnly)
+ QCheckBox::mouseMoveEvent(e);
+}
+
+void CheckBox::keyPressEvent(QKeyEvent* e)
+{
+ if (mReadOnly)
+ switch (e->key())
+ {
+ case Qt::Key_Up:
+ case Qt::Key_Left:
+ case Qt::Key_Right:
+ case Qt::Key_Down:
+ // Process keys which shift the focus
+ break;
+ default:
+ return;
+ }
+ QCheckBox::keyPressEvent(e);
+}
+
+void CheckBox::keyReleaseEvent(QKeyEvent* e)
+{
+ if (!mReadOnly)
+ QCheckBox::keyReleaseEvent(e);
+}