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0de182f257
* Constify many ButtonController/View methods. * Try and document the code ;-) git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6495 a592a061-630c-0410-9148-cb99ea01b6c8
82 lines
1.8 KiB
C++
82 lines
1.8 KiB
C++
// -*- C++ -*-
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/**
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* \file qscreen.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 QSCREEN_H
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#define QSCREEN_H
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#include "screen.h"
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#include <qrect.h>
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#include <boost/scoped_ptr.hpp>
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class WorkArea;
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/**
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* Qt implementation of toolkit-specific parts of LyXScreen.
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*/
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class QScreen : public LyXScreen {
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public:
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QScreen(QWorkArea &);
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virtual ~QScreen();
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/**
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* draw the screen from a given position
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* @param y the text position to draw from
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*
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* Uses as much of the already printed pixmap as possible
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*/
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virtual void draw(LyXText *, BufferView *, unsigned int y);
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/**
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* showManualCursor - display the caret on the work area
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* @param text the lyx text containing the cursor
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* @param x the x position of the cursor
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* @param y the y position of the row's baseline
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* @param asc ascent of the row
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* @param desc descent of the row
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* @param shape the current shape
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*/
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virtual void showManualCursor(LyXText const *, int x, int y,
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int asc, int desc,
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Cursor_Shape shape);
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/// unpaint the cursor painted by showManualCursor()
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virtual void hideCursor();
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protected:
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/// get the work area
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virtual WorkArea & workarea() const { return owner_; }
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/// repaint the whole content immediately
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void repaint();
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/// copies specified area of pixmap to screen
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virtual void expose(int x, int y, int exp_width, int exp_height);
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private:
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/// our owning widget
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QWorkArea & owner_;
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/// the mini-pixmap used for backing store for the blinking cursor
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boost::scoped_ptr<QPixmap> nocursor_pixmap_;
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//@{ the cursor pixmap position/size
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int cursor_x_;
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int cursor_y_;
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int cursor_w_;
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int cursor_h_;
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//@}
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};
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#endif // QSCREEN_H
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