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134 lines
3.5 KiB
134 lines
3.5 KiB
/*
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* checkbox.cpp - check box with read-only option
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* Program: kalarm
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* Copyright (c) 2002, 2003 by David Jarvie <software@astrojar.org.uk>
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "checkbox.moc"
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CheckBox::CheckBox(TQWidget* parent, const char* name)
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: TQCheckBox(parent, name),
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mFocusPolicy(focusPolicy()),
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mFocusWidget(0),
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mReadOnly(false)
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{ }
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CheckBox::CheckBox(const TQString& text, TQWidget* parent, const char* name)
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: TQCheckBox(text, parent, name),
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mFocusPolicy(focusPolicy()),
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mFocusWidget(0),
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mReadOnly(false)
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{ }
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/******************************************************************************
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* Set the read-only status. If read-only, the checkbox can be toggled by the
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* application, but not by the user.
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*/
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void CheckBox::setReadOnly(bool ro)
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{
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if ((int)ro != (int)mReadOnly)
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{
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mReadOnly = ro;
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setFocusPolicy(ro ? TQWidget::NoFocus : mFocusPolicy);
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if (ro)
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clearFocus();
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}
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}
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/******************************************************************************
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* Specify a widget to receive focus when the checkbox is clicked on.
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*/
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void CheckBox::setFocusWidget(TQWidget* w, bool enable)
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{
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mFocusWidget = w;
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mFocusWidgetEnable = enable;
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if (w)
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connect(this, TQT_SIGNAL(clicked()), TQT_SLOT(slotClicked()));
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else
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disconnect(this, TQT_SIGNAL(clicked()), this, TQT_SLOT(slotClicked()));
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}
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/******************************************************************************
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* Called when the checkbox is clicked.
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* If it is now checked, focus is transferred to any specified focus widget.
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*/
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void CheckBox::slotClicked()
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{
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if (mFocusWidget && isChecked())
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{
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if (mFocusWidgetEnable)
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mFocusWidget->setEnabled(true);
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mFocusWidget->setFocus();
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}
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}
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/******************************************************************************
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* Event handlers to intercept events if in read-only mode.
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* Any events which could change the checkbox state are discarded.
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*/
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void CheckBox::mousePressEvent(TQMouseEvent* e)
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{
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if (mReadOnly)
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{
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// Swallow up the event if it's the left button
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if (e->button() == Qt::LeftButton)
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return;
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}
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TQCheckBox::mousePressEvent(e);
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}
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void CheckBox::mouseReleaseEvent(TQMouseEvent* e)
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{
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if (mReadOnly)
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{
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// Swallow up the event if it's the left button
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if (e->button() == Qt::LeftButton)
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return;
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}
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TQCheckBox::mouseReleaseEvent(e);
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}
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void CheckBox::mouseMoveEvent(TQMouseEvent* e)
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{
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if (!mReadOnly)
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TQCheckBox::mouseMoveEvent(e);
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}
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void CheckBox::keyPressEvent(TQKeyEvent* e)
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{
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if (mReadOnly)
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switch (e->key())
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{
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case Qt::Key_Up:
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case Qt::Key_Left:
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case Qt::Key_Right:
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case Qt::Key_Down:
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// Process keys which shift the focus
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break;
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default:
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return;
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}
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TQCheckBox::keyPressEvent(e);
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}
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void CheckBox::keyReleaseEvent(TQKeyEvent* e)
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{
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if (!mReadOnly)
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TQCheckBox::keyReleaseEvent(e);
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}
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