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47a60e40dd
something in Qt. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5452 a592a061-630c-0410-9148-cb99ea01b6c8
91 lines
1.8 KiB
C++
91 lines
1.8 KiB
C++
// -*- C++ -*-
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/**
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* \file QContentPane.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author John Levon
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*
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* Full author contact details are available in file CREDITS
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*/
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#ifndef QCONTENTPANE_H
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#define QCONTENTPANE_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include <qwidget.h>
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#include <qevent.h>
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#include <qpixmap.h>
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#include <boost/scoped_ptr.hpp>
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class QWorkArea;
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/// for emulating triple click
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struct double_click {
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int x;
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int y;
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Qt::ButtonState state;
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bool active;
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bool operator==(QMouseEvent const & e) {
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return x == e.x() && y == e.y()
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&& state == e.button();
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}
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double_click()
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: x(0), y(0), state(Qt::NoButton), active(false) {}
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double_click(QMouseEvent * e)
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: x(e->x()), y(e->y()),
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state(e->button()), active(true) {}
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};
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/**
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* Widget for actually drawing the document on
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*/
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class QContentPane : public QWidget {
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Q_OBJECT
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public:
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QContentPane(QWorkArea * parent);
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/// return the backing pixmap
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QPixmap * pixmap() const { return pixmap_.get(); }
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protected:
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/// repaint part of the widget
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void paintEvent(QPaintEvent * e);
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/// widget has been resized
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void resizeEvent(QResizeEvent * e);
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/// mouse button press
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void mousePressEvent(QMouseEvent * e);
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/// mouse button release
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void mouseReleaseEvent(QMouseEvent * e);
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/// mouse double click of button
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void mouseDoubleClickEvent(QMouseEvent * e);
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/// mouse motion
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void mouseMoveEvent(QMouseEvent * e);
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/// wheel event
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void wheelEvent(QWheelEvent * e);
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/// key press
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void keyPressEvent(QKeyEvent * e);
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public slots:
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void doubleClickTimeout();
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void scrollBarChanged(int);
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private:
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/// owning widget
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QWorkArea * wa_;
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/// the double buffered pixmap
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boost::scoped_ptr<QPixmap> pixmap_;
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double_click dc_event_;
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};
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#endif // QCONTENTPANE_H
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