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/***************************************************************************
* Copyright (C) 2005 by David Saxton *
* david@bluehaze.org *
* *
* 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. *
***************************************************************************/
#ifndef CIWIDGETMGR_H
#define CIWIDGETMGR_H
#include <qmap.h>
#include <qstring.h>
class Button;
class CNItem;
class Slider;
class QCanvas;
class Widget;
typedef QMap<QString, Widget*> WidgetMap;
/**
This class handles the widgets (those things associated with CNItems that use QWidgets.
This class is pretty much to maintain a tidy interface: the functions could just as well be
all shoved in CNItem, but that gets messy.
@author David Saxton
*/
class CIWidgetMgr
{
public:
CIWidgetMgr( QCanvas *canvas, CNItem *item );
virtual ~CIWidgetMgr();
/**
* Set the top-left position from which mouse events are interpreted and the
* widgets are drawn from.
*/
void setWidgetsPos( const QPoint &pos );
/**
* Returns a pointer to the widget with the given id, or NULL if no such
* widgets are found.
*/
Widget *widgetWithID( const QString &id ) const;
Button *button( const QString &id ) const;
Slider *slider( const QString &id ) const;
void setButtonState( const QString &id, int state );
/**
* Adds a slider with the given id and values to the position
*/
Slider* addSlider( const QString &id, int minValue, int maxValue, int pageStep, int value, Qt::Orientation orientation, const QRect & pos );
/**
* Essentially the same as addDisplayText, but displays a button with
* text on it. The virtual functions buttonPressed( const QString &id ) and
* buttonReleased( const QString &id ) are called as appropriate with button id
*/
Button* addButton( const QString &id, const QRect & pos, const QString &display, bool toggle = false );
/**
* Adds a button with a QPixmap pixmap on it instead of text
* @see void addButton( const QString &id, QRect pos, const QString &display )
*/
Button* addButton( const QString &id, const QRect & pos, QPixmap pixmap, bool toggle = false );
/**
* Removes the widget with the given id.
*/
void removeWidget( const QString & id );
/**
* Sets whether or not to draw the widgets (drawing widgets mucks up SVG
* export). This function just calls either hide() or show() in each widget.
*/
void setDrawWidgets( bool draw );
bool mousePressEvent( const EventInfo &info );
bool mouseReleaseEvent( const EventInfo &info );
bool mouseDoubleClickEvent ( const EventInfo &info );
bool mouseMoveEvent( const EventInfo &info );
bool wheelEvent( const EventInfo &info );
void enterEvent();
void leaveEvent();
virtual void buttonStateChanged( const QString &/*id*/, bool /*on*/ ) {};
virtual void sliderValueChanged( const QString &/*id*/, int /*value*/ ) {};
int mgrX() const { return m_pos.x(); }
int mgrY() const { return m_pos.y(); }
/**
* Draw the widgets using the given painter. This function isn't actually
* used to draw the widgets on the canvas, as they are QCanvasItems
* themselves, but allows other classes (e.g. ItemLibrary) to draw them
* using a special painter.
*/
void drawWidgets( QPainter &p );
protected:
WidgetMap m_widgetMap;
QPoint m_pos;
QCanvas *p_canvas;
CNItem *p_cnItem;
};
#endif
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