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65d4b13616
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4471 a592a061-630c-0410-9148-cb99ea01b6c8
76 lines
1.5 KiB
C++
76 lines
1.5 KiB
C++
// -*- C++ -*-
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/**
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* \file xscreen.h
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* Copyright 1995-2002 the LyX Team
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* Read the file COPYING
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*
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* \author unknown
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* \author John Levon <moz@compsoc.man.ac.uk>
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*/
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#ifndef XSCREEN_H
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#define XSCREEN_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include <X11/Xlib.h>
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#include "screen.h"
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#include "XWorkArea.h"
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/** The class XScreen is used for the main Textbody.
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Concretely, the screen is held in a pixmap. This pixmap is kept up to
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date and used to optimize drawing on the screen.
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This class also handles the drawing of the cursor and partly the selection.
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*/
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class XScreen : public LyXScreen {
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public:
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///
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XScreen(XWorkArea &);
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///
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virtual ~XScreen();
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/// Sets the cursor color to LColor::cursor.
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virtual void setCursorColor();
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///
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virtual void hideCursor();
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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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/** Draws the screen form textposition y. Uses as much of
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the already printed pixmap as possible */
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virtual void draw(LyXText *, BufferView *, unsigned int y);
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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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/// Copies specified area of pixmap to screen
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virtual void expose(int x, int y, int w, int h);
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private:
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/// our owning widget
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XWorkArea & owner_;
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///
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Pixmap cursor_pixmap;
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///
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int cursor_pixmap_x;
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///
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int cursor_pixmap_y;
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///
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int cursor_pixmap_w;
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///
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int cursor_pixmap_h;
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///
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GC gc_copy;
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};
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#endif
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