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koffice/kpresenter/KPrRotationDialogImpl.h

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// -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 4; -*-
/* This file is part of the KDE project
Copyright (C) 2005 Thomas Zander <zander@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; version 2.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __rotationdialogimpl_h__
#define __rotationdialogimpl_h__
#include <qlabel.h>
#include <kdialogbase.h>
class KPrTextPreview;
class RotationPropertyUI;
class QObject;
class QEvent;
class KPrCircleGroup;
/**
* A dialog that lets the user interactively choose an angle for rotation.
*/
class KPrRotationDialogImpl : public KDialogBase
{
Q_OBJECT
public:
KPrRotationDialogImpl( QWidget *parent, const char* name = 0 );
~KPrRotationDialogImpl() {}
void setAngle( double angle );
double angle();
protected slots:
void angleChanged( double );
void angleMode( int );
void slotOk();
protected:
KPrTextPreview *m_preview;
RotationPropertyUI *m_dialog;
KPrCircleGroup *m_angleGroup;
private:
bool noSignals;
};
/**
* A toggle-button like widget that shows one pixmap when it is checked,
* and another when it is unselected.
*/
class KPrCircleToggle : public QLabel
{
Q_OBJECT
public:
/**
* Constructor.
* @param parent the parent widget, as required by Qt.
* @param image the named image that we will use. "rotate/" is
* prepended and "dn" is appended for the checked state.
* @param id the id that will be used in the clicked signal
*/
KPrCircleToggle(QWidget *parent, const QString &image, int id);
/// return the id which is passed in the constructor
int id() { return m_id; }
signals:
/// this signal will be emitted whenever the button becomes checked
void clicked(int id);
public slots:
/**
* Check or uncheck the button. On change the toggle will emit the clicked signal.
* @param on the new state of the button.
*/
void setChecked(bool on);
protected:
/// overwritten method from QWidget.
void mousePressEvent ( QMouseEvent * e );
private:
QPixmap m_on, m_off;
bool m_selected;
int m_id;
};
/**
* A button-group equivalent for a set of KPrCircleToggle classes.
*/
class KPrCircleGroup : public QFrame
{
Q_OBJECT
public:
/**
* Constructor.
* @param parent the parent widget, as required by Qt.
*/
KPrCircleGroup(QWidget *parent);
/**
* Set the angle the group is currently representing. If there is a child button
* that registred itself (using add()) with an ID that matches the argument angle
* that button will be checked. All other buttons will be disabled.
* @param angle the new angle to be represented by this circle
*/
void setAngle(int angle);
/**
* Add a KPrCircleToggle button as one of the representers of this circle.
* @param button the button
*/
void add(KPrCircleToggle *button);
signals:
/// clicked will be emitted when one of the child buttons is clicked.
void clicked(int id);
private slots:
void selectionChanged(int buttonId);
private:
QPtrList<KPrCircleToggle> m_buttons;
bool noSignals;
};
#endif